ORCID Profile
0000-0003-3464-5301
Current Organisation
University of Adelaide
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Publisher: American Chemical Society (ACS)
Date: 25-07-2023
Publisher: Elsevier BV
Date: 11-2017
Publisher: Wiley
Date: 26-06-2021
Abstract: Challenges from the insulating S and Li 2 S 2 /Li 2 S (Li 2 S 1–2 ) discharge products are restricting the development of the high‐energy‐density Li–S battery system. The deposition of insulating Li 2 S 1–2 on the surfaces of S based cathodes (e.g., S and Li 2 S) limits the reaction kinetics, leading to inferior electrochemical performance. In this work, the impact of binders on the deposition of Li 2 S 1–2 on S based cathodes is revealed, along with the interaction between polyvinylidene difluoride and Li 2 S olysulfides. This interaction can obstruct the electrochemical reactions near the binder, leading to dense deposition of insulating Li 2 S 1–2 that covers the cathode surface. Without such a binder, localized and uniform Li 2 S 1–2 deposition throughout the whole cathode can be achieved, effectively avoiding surface blockage and significantly improving electrode utilization. A full battery constructed with a binder‐free Li 2 S cathode delivers a gravimetric and volumetric energy density of 331.0 Wh kg −1 and 281.5 Wh L −1 , under ultrahigh Li 2 S loading (16.2 mg Li2S cm −2 ) with lean electrolyte (2.0 µL mg Li2S −1 ), providing a facile but practical approach to the design of next‐generation S‐based batteries.
Publisher: Wiley
Date: 15-04-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3EE24134C
Publisher: Wiley
Date: 14-06-2020
Publisher: Wiley
Date: 08-07-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1SC01806J
Abstract: In this perspective, we make a systematic summary and give out our comments on constructing nitrided interfaces for stabilizing Li metal electrodes.
Publisher: Wiley
Date: 12-07-2022
Abstract: Metal selenides have attracted significant attention as practically promising anode materials in alkali metal‐ion batteries because of their high theoretical capacity. However, a drawback is that these do not provide sufficient rate performance and cycle stability for large‐scale. Here, anion defect‐tuned ultra‐narrow bandgap bimetallic selenide nanoparticles anchored on honeycomb‐like N‐doped, porous carbon dominated by pyrrolic nitrogen is reported. This targeted defect chemistry and unique structure facilitate rapid diffusion of lithium‐potassium ions to provide increased pseudo‐capacitance that boosts electrochemical performance. It is demonstrated that in lithium‐ and potassium‐ion batteries (LIB and KIB), the composite exhibits high specific capacity, and excellent cycle stability with a reversible capacity of 937 mA h g −1 at 2 A g −1 for LIB and 304 mA h g −1 at 1 A g −1 for KIB following 1000 cycles, together with superior rate capability of, respectively, 499 mA h g –1 for LIB and 139 mA h g –1 for KIB at 10 A g –1 . A synergistic effect of the greater lithium otassium ion adsorption energy of the bimetallic selenide and N‐doped carbon boosts ion diffusion kinetics of the materials is confirmed. It is concluded that, these findings will be of immediate benefit to the practical development of alkali‐metal ion batteries.
Publisher: American Chemical Society (ACS)
Date: 05-08-2015
Publisher: Wiley
Date: 27-02-2019
Publisher: American Chemical Society (ACS)
Date: 07-10-2021
Publisher: Wiley
Date: 20-01-2021
Publisher: Wiley
Date: 05-05-2022
Abstract: Oxides composed of an oxygen framework and interstitial cations are promising cathode materials for lithium‐ion batteries. However, the instability of the oxygen framework under harsh operating conditions results in fast battery capacity decay, due to the weak orbital interactions between cations and oxygen (mainly 3 d –2 p interaction). Here, a robust and endurable oxygen framework is created by introducing strong 4 s –2 p orbital hybridization into the structure using LiNi 0.5 Mn 1.5 O 4 oxide as an ex le. The modified oxide delivers extraordinarily stable battery performance, achieving 71.4 % capacity retention after 2000 cycles at 1 C. This work shows that an orbital‐level understanding can be leveraged to engineer high structural stability of the anion oxygen framework of oxides. Moreover, the similarity of the oxygen lattice between oxide electrodes makes this approach extendable to other electrodes, with orbital‐focused engineering a new avenue for the fundamental modification of battery materials.
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1RA00645B
Publisher: Wiley
Date: 10-10-2018
Abstract: Borohydride solid-state electrolytes with room-temperature ionic conductivity up to ≈70 mS cm
Publisher: Elsevier BV
Date: 12-2006
Publisher: American Chemical Society (ACS)
Date: 10-06-2014
DOI: 10.1021/AM502343S
Abstract: Sodium-ion batteries can be the best alternative to lithium-ion batteries, because of their similar electrochemistry, nontoxicity, and elemental abundance and the low cost of sodium. They still stand in need of better cathodes in terms of their structural and electrochemical aspects. Accordingly, the present study reports the first ex le of the preparation of Na2/3(Fe1/2Mn1/2)O2 hierarchical nanofibers by electrospinning. The nanofibers with aggregated nanocrystallites along the fiber direction have been characterized structurally and electrochemically, resulting in enhanced cyclability when compared to nanoparticles, with initial discharge capacity of ∼195 mAh g(-1). This is attributed to the good interconnection among the fibers, with well-guided charge transfers and better electrolyte contacts.
Publisher: Elsevier BV
Date: 06-2010
Publisher: Wiley
Date: 09-02-2021
Publisher: Springer Science and Business Media LLC
Date: 16-11-2021
DOI: 10.1038/S41467-021-26947-9
Abstract: Rechargeable aqueous zinc-ion batteries (RZIBs) provide a promising complementarity to the existing lithium-ion batteries due to their low cost, non-toxicity and intrinsic safety. However, Zn anodes suffer from zinc dendrite growth and electrolyte corrosion, resulting in poor reversibility. Here, we develop an ultrathin, fluorinated two-dimensional porous covalent organic framework (FCOF) film as a protective layer on the Zn surface. The strong interaction between fluorine (F) in FCOF and Zn reduces the surface energy of the Zn (002) crystal plane, enabling the preferred growth of (002) planes during the electrodeposition process. As a result, Zn deposits show horizontally arranged platelet morphology with (002) orientations preferred. Furthermore, F-containing nanochannels facilitate ion transport and prevent electrolyte penetration for improving corrosion resistance. The FCOF@Zn symmetric cells achieve stability for over 750 h at an ultrahigh current density of 40 mA cm −2 . The high-areal-capacity full cells demonstrate hundreds of cycles under high Zn utilization conditions.
Publisher: American Chemical Society (ACS)
Date: 28-12-2015
Abstract: A peculiar nanostructure consisting of nitrogen-doped, carbon-encapsulated (N-C) SnO2@Sn nanoparticles grafted on three-dimensional (3D) graphene-like networks (designated as N-C@SnO2@Sn/3D-GNs) has been fabricated via a low-cost and scalable method, namely an in situ hydrolysis of Sn salts and immobilization of SnO2 nanoparticles on the surface of 3D-GNs, followed by an in situ polymerization of dopamine on the surface of the SnO2/3D-GNs, and finally a carbonization. In the composites, three-layer core-shell N-C@SnO2@Sn nanoparticles were uniformly grafted onto the surfaces of 3D-GNs, which promotes highly efficient insertion/extraction of Li(+). In addition, the outermost N-C layer with graphene-like structure of the N-C@SnO2@Sn nanoparticles can effectively buffer the large volume changes, enhance electronic conductivity, and prevent SnO2/Sn aggregation and pulverization during discharge/charge. The middle SnO2 layer can be changed into active Sn and nano-Li2O during discharge, as described by SnO2 + Li(+) → Sn + Li2O, whereas the thus-formed nano-Li2O can provide a facile environment for the alloying process and facilitate good cycling behavior, so as to further improve the cycling performance of the composite. The inner Sn layer with large theoretical capacity can guarantee high lithium storage in the composite. The 3D-GNs, with high electrical conductivity (1.50 × 10(3) S m(-1)), large surface area (1143 m(2) g(-1)), and high mechanical flexibility, tightly pin the core-shell structure of the N-C@SnO2@Sn nanoparticles and thus lead to remarkably enhanced electrical conductivity and structural integrity of the overall electrode. Consequently, this novel hybrid anode exhibits highly stable capacity of up to 901 mAh g(-1), with ∼89.3% capacity retention after 200 cycles at 0.1 A g(-1) and superior high rate performance, as well as a long lifetime of 500 cycles with 84.0% retention at 1.0 A g(-1). Importantly, this unique hybrid design is expected to be extended to other alloy-type anode materials such as silicon, germanium, etc.
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1RA00500F
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TA09354C
Abstract: Robust hybrid porous bamboo-like CNTs, with ultrafine Li 4 Ti 5 O 12 nanoparticles homogeneously embedded, which exhibit superior electrochemical performance.
Publisher: Elsevier BV
Date: 12-2007
Publisher: Wiley
Date: 06-2015
Abstract: One of the limitations to the widespread use of hydrogen as an energy carrier is its storage in a safe and compact form. Herein, recent developments in effective high-capacity hydrogen storage materials are reviewed, with a special emphasis on light compounds, including those based on organic porous structures, boron, nitrogen, and aluminum. These elements and their related compounds hold the promise of high, reversible, and practical hydrogen storage capacity for mobile applications, including vehicles and portable power equipment, but also for the large scale and distributed storage of energy for stationary applications. Current understanding of the fundamental principles that govern the interaction of hydrogen with these light compounds is summarized, as well as basic strategies to meet practical targets of hydrogen uptake and release. The limitation of these strategies and current understanding is also discussed and new directions proposed.
Publisher: Springer Science and Business Media LLC
Date: 08-01-2018
DOI: 10.1038/S41598-017-17913-X
Abstract: Complex regulatory networks control epithelial-to-mesenchymal transition (EMT) but the underlying epigenetic control is poorly understood. Lysine-specific demethylase 1 (LSD1) is a key histone demethylase that alters the epigenetic landscape. Here we explored the role of LSD1 in global epigenetic regulation of EMT, cancer stem cells (CSCs), the tumour microenvironment, and therapeutic resistance in breast cancer. LSD1 induced pan-genomic gene expression in networks implicated in EMT and selectively elicits gene expression programs in CSCs whilst repressing non-CSC programs. LSD1 phosphorylation at serine-111 (LSD1-s111p) by chromatin anchored protein kinase C-theta (PKC-θ), is critical for its demethylase and EMT promoting activity and LSD1-s111p is enriched in chemoresistant cells in vivo . LSD1 couples to PKC-θ on the mesenchymal gene epigenetic template promotes LSD1-mediated gene induction. In vivo , chemotherapy reduced tumour volume, and when combined with an LSD1 inhibitor, abrogated the mesenchymal signature and promoted an innate, M1 macrophage-like tumouricidal immune response. Circulating tumour cells (CTCs) from metastatic breast cancer (MBC) patients were enriched with LSD1 and pharmacological blockade of LSD1 suppressed the mesenchymal and stem-like signature in these patient-derived CTCs. Overall, LSD1 inhibition may serve as a promising epigenetic adjuvant therapy to subvert its pleiotropic roles in breast cancer progression and treatment resistance.
Publisher: Royal Society of Chemistry (RSC)
Date: 12-11-2014
DOI: 10.1039/C4RA10967H
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4CP02864C
Abstract: Understanding the electrochemical mechanism of the cobalt-free (Li 0.80(4) Ni 0.20(4) )(Li 0.20(4) Ni 0.13(4) Mn 0.33 Fe 0.33 )O 2 cathode using operando neutron powder-diffraction.
Publisher: American Chemical Society (ACS)
Date: 21-02-2020
Publisher: Elsevier BV
Date: 08-2016
Publisher: Elsevier BV
Date: 07-2017
Publisher: Elsevier BV
Date: 12-2020
Publisher: Elsevier BV
Date: 2007
Publisher: Springer Science and Business Media LLC
Date: 2003
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA00069B
Abstract: Porous carbon nanofibers were prepared by electrospinning using coal as the raw material. The activated carbon fiber mat is a promising candidate for the electrode of supercapacitors.
Publisher: American Chemical Society (ACS)
Date: 23-09-2019
Abstract: Vacancy engineering is a promising approach for optimizing the energy storage performance of transition metal dichalcogenides (TMDs) due to the unique properties of vacancies in manipulating the electronic structure and active sites. Nevertheless, achieving effective introduction of anion vacancies with adjustable vacancy concentration on a large scale is still a big challenge. Herein, MoS
Publisher: Elsevier BV
Date: 06-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA05101E
Abstract: Aqueous zinc ion batteries (ZIBs) are emerging as a highly promising alternative technology for grid-scale applications where high safety, environmental-friendliness, and high specific capacities are needed.
Publisher: Elsevier BV
Date: 07-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2CP24062A
Abstract: A composite cathode material for lithium ion battery applications, Mo-doped LiFePO(4)/C, is obtained through a facile and fast microwave-assisted synthesis method. Rietveld analysis of LiFePO(4)-based structural models using synchrotron X-ray diffraction data shows that Mo-ions substitute onto the Fe sites and displace Fe-ions to the Li sites. Supervalent Mo(6+) doping can act to introduce Li ion vacancies due to the charge compensation effect and therefore facilitate lithium ion diffusion during charging/discharging. Transmission electron microscope images demonstrate that the pure and doped LiFePO(4) nanoparticles were uniformly covered by an approximately 5 nm thin layer of graphitic carbon. Amorphous carbon on the graphitic carbon-coated pure and doped LiFePO(4) particles forms a three-dimensional (3D) conductive carbon network, effectively improving the conductivity of these materials. The combined effects of Mo-doping and the 3D carbon network dramatically enhance the electrochemical performance of these LiFePO(4) cathodes. In particular, Mo-doped LiFePO(4)/C delivers a reversible capacity of 162 mA h g(-1) at a current of 0.5 C and shows enhanced capacity retention compared to that of undoped LiFePO(4)/C. Moreover, the electrode exhibits excellent rate capability, with an associated high discharge capacity and good electrochemical reversibility.
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM00330A
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA02812F
Abstract: This paper highlights current research progress and future prospects of high-voltage spinel LiNi 0.5 Mn 1.5 O 4 cathode for next-generation high-enegy-density lithium-ion batteries.
Publisher: Wiley
Date: 08-07-2018
Publisher: Elsevier BV
Date: 11-2011
Publisher: Elsevier BV
Date: 2014
Publisher: Elsevier BV
Date: 10-2008
Publisher: Elsevier BV
Date: 02-2016
Publisher: Wiley
Date: 25-09-2023
Publisher: American Scientific Publishers
Date: 02-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA03721B
Abstract: Porous Ni nanofibers (NFs) were synthesized via a single-nozzle electrospinning technique with subsequent calcination and reduction.
Publisher: Wiley
Date: 26-05-2015
Publisher: American Scientific Publishers
Date: 2004
DOI: 10.1166/JNN.2004.046
Abstract: Nanoparticles of lithium manganese oxide (LiMn2O4) with a spinel structure have been synthesized by a one-step intermediate temperature solid-state reaction. The influence of the molar ratio of citric acid to the metal ions on the physicochemical properties of LiMn2O4 powders in air has been analyzed by means of X-ray diffraction and electron microscope techniques. The electrochemical behavior of the material has been examined by charge/discharge tests and cyclic voltammetry. Test results reveal that LiMn2O4 particles with lower molar ratios of citric acid to metal ions (1:2) are highly crystalline and highly electrochemically reversible, with better cycle capabilities when compared with a s le with a higher molar ratio (2:1). The LiMn2O4 powders obtained by this method have a uniform morphology with a narrow size distribution.
Publisher: Wiley
Date: 29-06-2016
Publisher: Qeios Ltd
Date: 16-12-2021
DOI: 10.32388/UZ1FGK
Publisher: Wiley
Date: 22-12-2023
Abstract: The application of Li‐rich layered oxides is hindered by their dramatic capacity and voltage decay on cycling. This work comprehensively studies the mechanistic behaviour of cobalt‐free Li 1.2 Ni 0.2 Mn 0.6 O 2 and demonstrates the positive impact of two‐phase Ru doping. A mechanistic transition from the monoclinic to the hexagonal behaviour is found for the structural evolution of Li 1.2 Ni 0.2 Mn 0.6 O 2, and the improvement mechanism of Ru doping is understood using the combination of in operando and post‐mortem synchrotron analyses. The two‐phase Ru doping improves the structural reversibility in the first cycle and restrains structural degradation during cycling by stabilizing oxygen (O 2− ) redox and reducing Mn reduction, thus enabling high structural stability, an extraordinarily stable voltage (decay rate .45 mV per cycle), and a high capacity‐retention rate during long‐term cycling. The understanding of the structure‐function relationship of Li 1.2 Ni 0.2 Mn 0.6 O 2 sheds light on the selective doping strategy and rational materials design for better‐performance Li‐rich layered oxides.
Publisher: Springer Science and Business Media LLC
Date: 10-06-2015
DOI: 10.1038/SREP11326
Abstract: Germanium is an outstanding anode material in terms of electrochemical performance, especially rate capability, but its developments are hindered by its high price because it is rare in the crust of earth and its huge volume variation during the lithium insertion and extraction. Introducing other cheaper elements into the germanium-based material is an efficient way to dilute the high price, but normally sacrifice its electrochemical performance. By the combination of nanostructure design and cheap element (calcium) introduction, urchin-like Ca 2 Ge 7 O 16 hierarchical hollow microspheres have been successfully developed in order to reduce the price and maintain the good electrochemical properties of germanium-based material. The electrochemical test results in different electrolytes show that ethylene carbonate/dimethyl carbonate/diethyl carbonate (3/4/3 by volume) with 5 wt% fluoroethylene carbonate additive is the most suitable solvent for the electrolyte. From the electrochemical evaluation, the as-synthesized Ca 2 Ge 7 O 16 hollow microspheres exhibit high reversible specific capacity of up to 804.6 mA h g −1 at a current density of 100 mA g −1 after 100 cycles and remarkable rate capability of 341.3 mA h g −1 at a current density of 4 A g −1 . The growth mechanism is proposed based on our experimental results on the growth process.
Publisher: Elsevier BV
Date: 06-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM03873C
Publisher: Elsevier BV
Date: 10-2008
Publisher: Springer Science and Business Media LLC
Date: 13-12-2012
Publisher: American Chemical Society (ACS)
Date: 27-12-2020
Publisher: Elsevier BV
Date: 2009
Publisher: Elsevier BV
Date: 04-2018
Publisher: Springer Science and Business Media LLC
Date: 28-04-2013
Publisher: Wiley
Date: 10-05-2018
Abstract: Structural design and modification are effective approaches to regulate the physicochemical properties of TiO
Publisher: Wiley
Date: 28-10-2021
Abstract: The great demand for high-energy-density batteries has driven intensive research on the Li-S battery due to its high theoretical energy density. Consequently, considerable progress in Li-S batteries is achieved, although the lithium anode material is still challenging in terms of lithium dendrites and its unstable interface with electrolyte, impeding the practical application of the Li-S battery. Li
Publisher: Elsevier BV
Date: 09-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1RA00510C
Publisher: Wiley
Date: 17-10-2006
Publisher: Springer Science and Business Media LLC
Date: 08-2010
Abstract: SnO 2 @carbon nanofibers were synthesized by a combination of electrospinning and subsequent thermal treatments in air and then in argon to demonstrate their potential use as an anode material in lithium ion battery applications. The as-prepared SnO 2 @carbon nanofibers consist of SnO 2 nanoparticles/nanocrystals encapsulated in a carbon matrix and contain many mesopores. Because of the charge pathways, both for the electrons and the lithium ions, and the buffering function provided by both the carbon encapsulating the SnO 2 nanoparticles and the mesopores, which tends to alleviate the volumetric effects during the charge/discharge cycles, the nanofibers display a greatly improved reversible capacity of 420 mAh/g after 100 cycles at a constant current of 100 mA/g, and a sharply enhanced reversible capacity at higher rates (0.5, 1, and 2 C) compared with pure SnO 2 nanofibers, which makes it a promising anode material for lithium ion batteries.
Publisher: Elsevier BV
Date: 07-2010
Publisher: Wiley
Date: 09-2011
Publisher: Springer Science and Business Media LLC
Date: 02-08-2006
Publisher: Elsevier BV
Date: 09-2017
Publisher: AIP Publishing
Date: 24-04-2023
DOI: 10.1063/5.0140107
Abstract: Aqueous alkali and multivalent metal-ion batteries are practically advantageous for large-scale energy storage because of intrinsic safety and environmental friendliness. Drawbacks, however, include low energy density and short life because of limited electrochemical stability windows (ESWs) of aqueous electrolytes and rapid degradation of electrode materials with high water activity. Despite significant research, including water-in-salt and electrolyte additive(s), directed to the electrolyte to extend ESWs and to boost electrode stability, the practical application remains limited because of the present high cost and generally unsatisfactory performance. Although alkali and multivalent metal ions can have different coordinating structures with solvents and anions, electrolyte design strategies share fundamental mechanisms in either extending ESWs or achieving a passivation layer on the electrode material(s). Future development of aqueous batteries, therefore, is dependent on a systematic understanding and analysis of electrolyte research. Here, we report for the first time a systematic review of the design and engineering of emerging water-based electrolytes for boosted aqueous rechargeable batteries (ARBs) performance. We present a comparative summary of electrochemical stability windows and electrode/electrolyte interphases for five (5) electrolyte types appraise strategies and the resulting impact of electrolyte properties on electrode interfacial stability analyze in situ generated electrode/electrolyte interphases classify advantages and drawbacks of selected strategies and provide a perspective on future developments in aqueous alkali and multivalent metal-ion batteries, together with methods for the study of both electrolyte and derived interphase(s). We conclude that (1) the design of electrolytes of high concentration and hybrid and eutectic solvents are practically promising for high energy density ARBs (2) there is a need to improve design for longer cycling life of ARBs (3) research addresses boosting ESW of the electrolyte and (4) it increased the understanding of the electrode/electrolyte interface stability via new electrode/electrolyte interphase structures. This review will be of benefit in the practical design of electrolyte(s) for aqueous batteries for high performance and, therefore, of interest to researchers and manufacturers.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2TA00697A
Publisher: American Chemical Society (ACS)
Date: 25-09-2018
Publisher: Elsevier BV
Date: 07-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM14852H
Publisher: Wiley
Date: 06-05-2021
Abstract: Rechargeable potassium–selenium (K–Se) batteries, as an emerging electrochemical energy storage system, has recently captured intensive attention due to the desirable natural abundance and low redox potential of elemental potassium as well as the relatively high electronic conductivity and impressive theoretical volumetric capacity of elemental selenium. Although great progress on cathode materials design and electrochemical performance improvement has been made, K–Se batteries are still confronted with a series of key challenges, including low reactive activity, shuttle effect, volume expansion, potassium dendrite growth, and high chemical activity of potassium metal. The recent advances in rechargeable K–Se batteries are comprehensively summarized with an emphasis on discussing the electrochemical mechanisms and central challenges, presenting the synthesis, properties, and electrochemical performance of selenium‐based cathode materials, and extending potential tactics for tackling the key issues and developmental directions for future research.
Publisher: Elsevier BV
Date: 08-2016
Publisher: Proceedings of the National Academy of Sciences
Date: 30-03-2023
Abstract: Transforming CO 2 into valuable chemicals is an inevitable trend in our current society. Among the viable end-uses of CO 2 , fixing CO 2 as carbon or carbonates via Li-CO 2 chemistry could be an efficient approach, and promising achievements have been obtained in catalyst design in the past. Even so, the critical role of anions/solvents in the formation of a robust solid electrolyte interphase (SEI) layer on cathodes and the solvation structure have never been investigated. Herein, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in two common solvents with various donor numbers (DN) have been introduced as ideal ex les. The results indicate that the cells in dimethyl sulfoxide (DMSO)-based electrolytes with high DN possess a low proportion of solvent-separated ion pairs and contact ion pairs in electrolyte configuration, which are responsible for fast ion diffusion, high ionic conductivity, and small polarization. The 3 M DMSO cell delivered the lowest polarization of 1.3 V compared to all the tetraethylene glycol dimethyl ether (TEGDME)-based cells (about 1.7 V). In addition, the coordination of the O in the TFSI − anion to the central solvated Li + ion was located at around 2 Å in the concentrated DMSO-based electrolytes, indicating that TFSI − anions could access the primary solvation sheath to form an LiF-rich SEI layer. This deeper understanding of the electrolyte solvent property for SEI formation and buried interface side reactions provides beneficial clues for future Li-CO 2 battery development and electrolyte design.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA08802G
Abstract: A carbon fiber@Ni 3 S 2 non-woven structured electrode was prepared by electroplating a nickel layer on the surface of carbon paper fibers, and then carbon fiber@Ni 3 S 2 was in situ formed by a vulcanization reaction.
Publisher: Elsevier BV
Date: 05-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA13137H
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 08-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/B920277C
Abstract: Restacked MoS(2) with enlarged c lattice parameter and surface area was prepared by exfoliation and restacking process, exhibiting high reversible lithium storage capacity and superior rate capability as anode material for lithium ion batteries.
Publisher: American Chemical Society (ACS)
Date: 30-04-2012
DOI: 10.1021/JA301187U
Abstract: Lithium-ion batteries power many portable devices and in the future are likely to play a significant role in sustainable-energy systems for transportation and the electrical grid. LiFePO(4) is a candidate cathode material for second-generation lithium-ion batteries, bringing a high rate capability to this technology. LiFePO(4) functions as a cathode where delithiation occurs via either a solid-solution or a two-phase mechanism, the pathway taken being influenced by s le preparation and electrochemical conditions. The details of the delithiation pathway and the relationship between the two-phase and solid-solution reactions remain controversial. Here we report, using real-time in situ neutron powder diffraction, the simultaneous occurrence of solid-solution and two-phase reactions after deep discharge in nonequilibrium conditions. This work is an ex le of the experimental investigation of nonequilibrium states in a commercially available LiFePO(4) cathode and reveals the concurrent occurrence of and transition between the solid-solution and two-phase reactions.
Publisher: Springer Science and Business Media LLC
Date: 06-08-2014
Publisher: American Chemical Society (ACS)
Date: 18-09-2014
DOI: 10.1021/AM503572W
Abstract: The significance of developing implantable, biocompatible, miniature power sources operated in a low current range has become manifest in recent years to meet the demands of the fast-growing market for biomedical microdevices. In this work, we focus on developing high-performance cathode material for biocompatible zinc olymer batteries utilizing biofluids as electrolyte. Conductive polymers and graphene are generally considered to be biocompatible and suitable for bioengineering applications. To harness the high electrical conductivity of graphene and the redox capability of polypyrrole (PPy), a polypyrrole fiber/graphene composite has been synthesized via a simple one-step route. This composite is highly conductive (141 S cm(-1)) and has a large specific surface area (561 m(2) g(-1)). It performs more effectively as the cathode material than pure polypyrrole fibers. The battery constructed with PPy fiber/reduced graphene oxide cathode and Zn anode delivered an energy density of 264 mWh g(-1) in 0.1 M phosphate-buffer saline.
Publisher: Wiley
Date: 31-12-2021
Publisher: Elsevier BV
Date: 06-2003
Publisher: American Chemical Society (ACS)
Date: 30-03-2018
Abstract: Rechargeable lithium metal anodes (LMAs) with long cycling life have been regarded as the "Holy Grail" for high-energy-density lithium metal secondary batteries. The skeleton plays an important role in determining the performance of LMAs. Commercially available copper foam (CF) is not normally regarded as a suitable skeleton for stable lithium storage owing to its relatively inappropriate large pore size and relatively low specific surface area. Herein, for the first time, we revisit CF and address these issues by rationally designing a highly porous copper (HPC) architecture grown on CF substrates (HPC/CF) as a three-dimensional (3D) hierarchically bicontinuous porous skeleton through a novel approach combining the self-assembly of polystyrene microspheres, electrodeposition of copper, and a thermal annealing treatment. Compared to the CF skeleton, the HPC/CF skeleton exhibits a significantly improved Li plating/stripping behavior with high Coulombic efficiency (CE) and superior Li dendrite growth suppression. The 3D HPC/CF-based LMAs can run for 620 h without short-circuiting in a symmetric Li/Li@Cu cell at 0.5 mA cm
Publisher: Wiley
Date: 06-07-2020
Publisher: Wiley
Date: 05-09-2022
Abstract: In traditional non‐flammable electrolytes a trade‐off always exists between non‐flammability and battery performance. Previous research focused on reducing free solvents and forming anion‐derived solid‐electrolyte interphase. However, the contribution of solvated anions in boosting the stability of electrolyte has been overlooked. Here, we resolve this via introducing anions into Li + solvation sheaths using anions with similar Gutmann donor number (DN) to that of solvents. Taking trimethyl phosphate fire‐retardant (DN=23.0 kcal mol −1 ) and NO 3 − (DN=22.2 kcal mol −1 ) as an ex le, NO 3 − is readily involved in the Li + solvation sheath and reduces the polarity of solvent. This results in boosted stability of electrolyte against Li. The developed non‐flammable electrolyte has low viscosity, high ionic conductivity and is low cost. The reversibility of Li‐Cu cell was improved to 99.49 % and the lifespan of practical LMBs was extended by %.
Publisher: American Chemical Society (ACS)
Date: 06-02-2013
DOI: 10.1021/NL304716E
Abstract: GeO2/Ge/C anode material synthesized using a simple method involving simultaneous carbon coating and reduction by acetylene gas is composed of nanosized GeO2/Ge particles coated by a thin layer of carbon, which is also interconnected between neighboring particles to form clusters of up to 30 μm. The GeO2/Ge/C composite shows a high capacity of up to 1860 mAh/g and 1680 mAh/g at 1 C (2.1 A/g) and 10 C rates, respectively. This good electrochemical performance is related to the fact that the elemental germanium nanoparticles present in the composite increases the reversibility of the conversion reaction of GeO2. These factors have been found through investigating and comparing GeO2/Ge/C, GeO2/C, nanosized GeO2, and bulk GeO2.
Publisher: Springer Science and Business Media LLC
Date: 06-12-2009
Publisher: American Chemical Society (ACS)
Date: 28-06-2016
Abstract: Porous mixed metal oxide (MMO) hollow spheres present high specific surface areas, abundant electrochemically active sites, and outstanding electrochemical properties, showing potential applications in energy storage. A hydro/solvothermal process, followed by a calcination process, can be a viable method for producing uniform porous metal oxide hollow spheres. Unfortunately, this method usually involves harsh synthetic conditions such as high temperature and intricate processing. Herein, we report a general and facile "ion adsorption-annealing" approach for the fabrication of uniform porous MMO hollow spheres. The size and shell thickness of the as-obtained hollow spheres can be adjusted by the carbohydrate sphere templates and the solution concentration. Electrochemical measurements of the MMO hollow spheres demonstrate excellent supercapacitive properties, which may be due to the small size, ultrathin shells, and fine porous structure.
Publisher: Wiley
Date: 04-03-2022
Abstract: Lithium (Li) metal is regarded as one of the most promising anode candidates for future high energy density lithium batteries. The practical application of Li‐metal anodes, however, is hindered by the uncontrollable growth of dendrites resulting from both huge volume change and unstable solid‐electrolyte interfaces upon cycling. Herein, we propose a novel “house strategy” that utilizes the 3D NiO nanosheets decorated nickel foam as the frame to confine Li metal and the inorganic [LiNBH] n chains with high Li ion conductivity as the artificial protective proof to establish a stable dendrite‐free Li metal anode. Benefiting from the synergistic effect of the 3D NiO/Ni foam in lowering the local current density and accommodating the huge volume change of Li metal and the [LiNBH] n protective layer in facilitating uniform Li + diffusion and regulating Li deposition beneath this layer, the LiNBH‐Li@Ni electrode presents an excellent long‐term cycling lifespan of over 800 h at both 1 and 3 mA cm −2 with a high areal capacity of 5 mAh cm −2 in symmetric cells. Upon coupling this anode with LiFePO 4 cathode, the thus‐assembled full cells deliver an ultrahigh reversible capacity of 127.4 mAh g −1 at 1 C after 200 cycles.
Publisher: Elsevier BV
Date: 2018
Publisher: Wiley
Date: 29-01-2019
Abstract: Potassium-ion batteries are promising for low-cost and large-scale energy storage applications, but the major obstacle to their application is the lack of safe and effective electrolytes. A phosphate-based fire retardant such as triethyl phosphate is now shown to work as a single solvent with potassium bis(fluorosulfonyl)imide at 0.9 m, in contrast to previous Li and Na systems where phosphates cannot work at low concentrations. This electrolyte is optimized at 2 m, where it exhibits the advantages of low cost, low viscosity, and high conductivity, as well as the formation of a uniform and robust salt-derived solid-electrolyte interphase layer, leading to non-dendritic K-metal plating/stripping with Coulombic efficiency of 99.6 % and a highly reversible graphite anode.
Publisher: American Chemical Society (ACS)
Date: 26-06-2020
Publisher: Wiley
Date: 07-11-2014
Publisher: Elsevier BV
Date: 06-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1NR10837A
Abstract: TiO(2)(B)@SnO(2)/carbon hybrid nanowires have been synthesized by two simple hydrothermal processes and subsequent heat treatment in argon. The composite has a unique architecture, as its morphology consists of particles having a TiO(2)(B) nanowire core and a porous SnO(2)/carbon nanoparticle shell layer. The unique core/shell structure and chemical composition will be useful for many potential applications, including the lithium ion battery. The electrochemical results on the composite are presented to demonstrate the superior cycling performance and rate capability of the TiO(2)(B)@SnO(2)/carbon nanowires. This composite exhibits a high reversible capacity of ∼669mAhg(-1), and excellent cycling stability, indicating that the composite is a promising anode material for Li-ion batteries.
Publisher: Wiley
Date: 28-08-2015
Abstract: Monodisperse MgH2 nanoparticles with homogeneous distribution and a high loading percent are developed through hydrogenation-induced self-assembly under the structure-directing role of graphene. Graphene acts not only as a structural support, but also as a space barrier to prevent the growth of MgH2 nanoparticles and as a thermally conductive pathway, leading to outstanding performance.
Publisher: American Chemical Society (ACS)
Date: 09-05-2018
Abstract: A series of ternary sulfide hollow structures have been successfully prepared by a facile glutathione (GSH)-assisted one-step hydrothermal route, where GSH acts as the source of sulfur and bubble template. We demonstrate the feasibility and versatility of this in situ gas-bubble template strategy by the fabrication of novel hollow structures of MIn
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA03380G
Abstract: A one-step and solvent-free pyrolysis method was developed to control the synthesis of an Sb/C composite by structural remolding of liquid Sb.
Publisher: Springer Science and Business Media LLC
Date: 11-05-2023
DOI: 10.1038/S41467-023-38384-X
Abstract: Aqueous Zn-ion batteries have attracted increasing research interest however, the development of these batteries has been hindered by several challenges, including dendrite growth, Zn corrosion, cathode material degradation, limited temperature adaptability and electrochemical stability window, which are associated with water activity and the solvation structure of electrolytes. Here we report that water activity is suppressed by increasing the electron density of the water protons through interactions with highly polar dimethylacetamide and trimethyl phosphate molecules. Meanwhile, the Zn corrosion in the hybrid electrolyte is mitigated, and the electrochemical stability window and the operating temperature of the electrolyte are extended. The dimethylacetamide alters the surface energy of Zn, guiding the (002) plane dominated deposition of Zn. Molecular dynamics simulation evidences Zn 2+ ions are solvated with fewer water molecules, resulting in lower lattice strain in the NaV 3 O 8 ·1.5H 2 O cathode during the insertion of hydrated Zn 2+ ions, boosting the lifespan of Zn|| NaV 3 O 8 ·1.5H 2 O cell to 3000 cycles.
Publisher: Proceedings of the National Academy of Sciences
Date: 29-01-2020
Abstract: The limited energy density, lifespan, and high cost of lithium-ion batteries (LIBs) drive the development of new-type affordable batteries. As a green and cheap alternative, dual-graphite batteries (DGBs) have received much attention recently however, they have been criticized for low capacity, electrode durability, and “real” energy density. Here, we designed hybrid LiFePO 4 (LFP)/graphite electrodes that operate with a staged deintercalation/intercalation of the Li + and PF 6 − mechanism. Introducing graphite into LFP not only accelerates the electrochemical performance of LFP but also unlocks the electrolyte role by providing active sites for PF 6 − intercalation. This work provides insights to optimize the current LIB technology by full utilization of in idual components, including electrolyte.
Publisher: American Scientific Publishers
Date: 2011
Publisher: Elsevier BV
Date: 04-2009
Publisher: Wiley
Date: 18-03-2023
Abstract: 3D porous Zn‐metal anodes have aroused widespread interest for Zn‐ion batteries (ZIBs). Nevertheless, the notorious “top‐growth” dendrites caused by the intrinsic top‐concentrated ions and randomly distributed electrons may ultimately trigger a cell failure. Herein, an electron/ion‐flux dual‐gradient 3D porous Zn anode is reported for dendrite‐free ZIBs by adopting 3D printing technology. The 3D‐printed Zn anode with layer‐by‐layer bottom‐up attenuating Ag nanoparticles (3DP‐BU@Zn) establishes dual‐gradient electron/ion fluxes, i.e., an internal bottom‐up gradient electron flux created by bottom‐rich conductive Ag nanoparticles, and a gradient ion flux resulting from zincophilic Ag nanoparticles which pump ions toward the bottom. Meanwhile, the 3D‐printing‐enabled hierarchical porous structure and continuously conducting network endow unimpeded electron transfer and ion diffusion among the electrode, dominating a bottom‐preferential Zn deposition behavior. As a result, the 3DP‐BU@Zn symmetrical cell affords highly reversible Zn plating/stripping with an extremely small voltage hysteresis of 17.7 mV and a superior lifespan over 630 h at 1 mA cm −2 and 1 mAh cm −2 . Meanwhile, the 3DP‐BU@Zn//VO 2 full cell exhibits remarkable cyclic stability over 500 cycles. This unique dual‐gradient strategy sheds light on the roadmap for the next‐generation safe and durable Zn‐metal batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0NR00009D
Abstract: Novel plum-branch-like carbon nanofibers (CNFs) decorated with SnO2 nanocrystals have been synthesized by electrospinning and subsequent thermal treatment in an Ar/H2O atmosphere. The morphologies of the as-synthesized SnO2/CNF composites and the contents of carbon and SnO2 can be controlled by adjusting the heat treatment temperature. It is proposed that the growth of SnO2/CNF composites follows the outward diffusion of tin composites from the as-spun tin composite olyacrylonitrile (PAN) nanofibers, pyrolysis of PAN and oxidation of tin composites, and then formation of SnO2 nanocrystals around the CNFs. This novel 1D SnO2/CNF composite may have potential application in nanobatteries, nano fuel cells, and nanosensors. A preliminary result has revealed that the SnO2/CNF composite presents favourable electrochemical performance in lithium-ion batteries.
Publisher: Elsevier BV
Date: 10-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7SC05185A
Abstract: Lanthanide doped Na 2 Ti 3 O 7 enabled remarkably higher capacity for sodium ion batteries due to the enhanced conductivity by introducing oxygen vacancies.
Publisher: American Chemical Society (ACS)
Date: 24-06-2021
Abstract: Li-rich layered oxides have attracted intense attention for lithium-ion batteries, as provide substantial capacity from transition metal cation redox simultaneous with reversible oxygen-anion redox. However, unregulated irreversible oxygen-anion redox leads to critical issues such as voltage fade and oxygen release. Here, we report a feasible NiFe
Publisher: Wiley
Date: 19-12-2021
Abstract: Lithium metal batteries (LMBs) have aroused extensive interest in the field of energy storage owing to the ultrahigh anode capacity. However, strong solvation of Li + and slow interfacial ion transfer associated with conventional electrolytes limit their long‐cycle and high‐rate capabilities. Herein an electrolyte system based on fluoroalkyl ether 2,2,2‐trifluoroethyl‐1,1,2,3,3,3‐hexafluoropropyl ether (THE) and ether electrolytes is designed to effectively upgrade the long‐cycle and high‐rate performances of LMBs. THE owns large adsorption energy with ether‐based solvents, thus reducing Li + interaction and solvation in ether electrolytes. With THE rich in fluoroalkyl groups adjacent to oxygen atoms, the electrolyte owns ultrahigh polarity, enabling solvation‐free Li + transfer with a substantially decreased energy barrier and ten times enhancement in Li + transference at the electrolyte/anode interface. In addition, the uniform adsorption of fluorine‐rich THE on the anode and subsequent LiF formation suppress dendrite formation and stabilize the solid electrolyte interphase layer. With the electrolyte, the lithium metal battery with a LiFePO 4 cathode delivers unprecedented cyclic performances with only 0.0012% capacity loss per cycle over 5000 cycles at 10 C. Such enhancement is consistently observed for LMBs with other mainstream electrodes including LiCoO 2 and LiNi 0.5 Mn 0.3 Co 0.2 O 2 , suggesting the generality of the electrolyte design for battery applications.
Publisher: Elsevier BV
Date: 11-2021
Publisher: American Scientific Publishers
Date: 06-2016
Publisher: Elsevier BV
Date: 11-0099
Publisher: Elsevier BV
Date: 11-2002
Publisher: Wiley
Date: 29-03-2020
Publisher: American Chemical Society (ACS)
Date: 02-07-2010
DOI: 10.1021/JP1038255
Publisher: Elsevier BV
Date: 07-2019
Publisher: Elsevier BV
Date: 02-2015
Publisher: American Scientific Publishers
Date: 03-2009
DOI: 10.1166/JNN.2009.428
Abstract: Nanostructured NiO/C composite for lithium-ion battery anode was synthesized by a simple hydrothermal method and subsequent calcination. X-ray powder diffraction (XRD) showed that the composite was composed of carbon and nanocrystalline NiO. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed a dense and uniform distribution of fine NiO particles, with particle sizes ranging from 7-20 nm, within the carbon matrix. The electrochemical results showed that NiO/C nanocomposite could achieve 792.0 mAh/g reversible capacity and 75.5% initial coulombic efficiency, and 58.1% capacity retention after 40 cycles at a current density of 60 mA/g in the voltage range of 0.01-3.0 V.
Publisher: Elsevier BV
Date: 06-2005
Publisher: Wiley
Date: 13-12-2018
Abstract: Nitrate is a raw ingredient for the production of fertilizer, gunpowder, and explosives. Developing an alternative approach to activate the N≡N bond of naturally abundant nitrogen to form nitrate under ambient conditions will be of importance. Herein, pothole-rich WO
Publisher: American Chemical Society (ACS)
Date: 21-05-2009
DOI: 10.1021/JP808269V
Publisher: Elsevier BV
Date: 11-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11381G
Publisher: Wiley
Date: 03-06-2018
Abstract: Layered lithium transition-metal oxides, with large capacity and high discharge platform, are promising cathode materials for Li-ion batteries. However, their high-rate cycling stability still remains a large challenge. Herein, hierarchical LiNi
Publisher: Wiley
Date: 11-08-2020
Abstract: Volume expansion and poor conductivity are two major obstacles that hinder the pursuit of the lithium‐ion batteries with long cycling life and high power density. Herein, we highlight a misfit compound PbNbS 3 with a soft/rigid superlattice structure, confirmed by scanning tunneling microscopy and electrochemical characterization, as a promising anode material for high performance lithium‐ion batteries with optimized capacity, stability, and conductivity. The soft PbS sublayers primarily react with lithium, endowing capacity and preventing decomposition of the superlattice structure, while the rigid NbS 2 sublayers support the skeleton and enhance the migration of electrons and lithium ions, as a result leading to a specific capacity of 710 mAh g −1 at 100 mA g −1 , which is 1.6 times of NbS 2 and 3.9 times of PbS. Our finding reveals the competitive strategy of soft/rigid structure in lithium‐ion batteries and broadens the horizons of single‐phase anode material design.
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA05178E
Abstract: Nanocrystalline Li 4 Ti 5 O 12 was synthesized by an in situ spray pyrolysis technique followed by heat treatment in N 2 for short periods of time, resulting in self-contained carbon originating from the organic synthetic precursors. The excellent high rate capability and full battery tests indicate that this is a promising 4 anode candidate for high power lithium-ion batteries.
Publisher: Elsevier BV
Date: 06-2011
Publisher: Wiley
Date: 15-04-2020
Publisher: Elsevier BV
Date: 02-2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA00259A
Abstract: De-/re-hydrogenation of Li 2 Mg(NH) 2 at a temperature as low as 105 °C and stable reversibility through up to 20 cycles are successfully achieved by the nanosize-induced effects by double-shelled hollow carbon spheres.
Publisher: Elsevier BV
Date: 10-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2NR33223J
Abstract: A novel hierarchical star-like Co(3)O(4) was successfully synthesized from self-assembled hierarchical Co(OH)F precursors via a facile hydrothermal method and subsequent annealing in air. The morphological evolution process of the Co(OH)F precursors was investigated by examining the different reaction times during synthesis. First, hexagonal plates are formed, and then nanodiscs grow on the surface of the plates. Subsequently, dissolution and regrowth of Co(OH)F occur to form the star-like hierarchical structures. Co(3)O(4) obtained from thermal decomposition of the Co(OH)F precursor in air at 350 °C exhibited high reversible capacity as an anode material in lithium ion batteries. The specific charge capacity of 1036 mA h g(-1) was obtained in the first cycle at a current density of 50 mA g(-1), and after 100 cycles, the capacity retention was nearly 100%. When the current density was increased to 500 mA g(-1) and 2 A g(-1), the capacities were 995 and 641 mA h g(-1), respectively, after 100 cycles. In addition, a capacity of 460 mA h g(-1) was recorded at a current density of 10 A g(-1) in the rate capability test. The excellent electrochemical performance of the Co(3)O(4) electrodes can be attributed to the porous interconnected hierarchical nanostructures, which protect the small particles from agglomeration and buffer the volume change during the discharge-charge process.
Publisher: Elsevier BV
Date: 04-2009
Publisher: Elsevier BV
Date: 09-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2009
DOI: 10.1039/B821519G
Publisher: Wiley
Date: 02-06-2021
Abstract: 2D non‐layered metal sulfides possess intriguing properties, rendering them bright application prospects in energy storage and conversion, however, the synthesis of non‐layered metal sulfide nanosheets is still significantly challenging. Herein, a surface‐charge‐regulating strategy is developed to fabricate microsized 2D non‐layered metal sulfides via manipulation of the isoelectric point, which can easily modulate the manner of surface charge arrangement during the growth of crystal nuclei. The result of this strategy are materials that are completely assembled with a preferred orientation but comprise a large lateral size with maintaining atomic thickness. A series of modified sulfides are successfully synthesized, demonstrating that their microarchitectures are shifted in an expected manner. Then, one of these materials, In 4 SnS 8 , approaches a promising candidate for sodium storage by means of its structural integrity, boosted transfer kinetics, and abundant active sites. The proposed synthetic protocol can open up a new opportunity to explore 2D non‐layered materials for energy‐related applications.
Publisher: Elsevier BV
Date: 05-2017
Publisher: American Chemical Society (ACS)
Date: 02-08-2017
Abstract: By scrutinizing the energy storage process in Li-ion batteries, tuning Li-ion migration behavior by atomic level tailoring will unlock great potential for pursuing higher electrochemical performance. Vacancy, which can effectively modulate the electrical ordering on the nanoscale, even in tiny concentrations, will provide tempting opportunities for manipulating Li-ion migratory behavior. Herein, taking CuGeO
Publisher: Wiley
Date: 04-10-2019
Abstract: Maximizing the activity of materials towards the alkaline hydrogen evolution reaction while maintaining their structural stability under realistic working conditions remains an area of active research. Herein, we report the first controllable surface modification of graphene(G)/V
Publisher: Wiley
Date: 20-01-2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA08139A
Abstract: KFe II [Fe III (CN) 6 ] with a symmetric cubic structure exhibits exceptional electrochemical performance based on a solid solution mechanism, and its high structural stability and electrochemical reversibility.
Publisher: American Scientific Publishers
Date: 10-2012
Abstract: A Sn-SnO2/C nanocomposite was synthesized using the electrospinning method. Thermal analysis was used to determine the content range of Sn and SnO2 in the composite. The composite was characterized by X-ray diffraction, and the particle size and shape in the Sn-SnO2/C composite were determined by scanning and transmission electron microscopy. The results show that the Sn-SnO2/C composite takes on a nanofiber morphology, with the diameters of the nanofibers distributed from 50 to 200 nm. The electrochemical properties of the Sn-SnO2/C composite were also investigated. The Sn-SnO2/C composite as an electrode material has both higher reversible capacity (887 mAh x g(-1)) and good cycling performance in lithium-anode cells working at room temperature in a 3.0 V to 0.01 V potential window. The Sn-SnO2/C composite could retain a discharge capacity of 546 mAh/g after 30 cycles. The outstanding electrochemical properties of the Sn-SnO2/C composite obtained by this method make it possible for this composite to be used as a promising anode material.
Publisher: Elsevier BV
Date: 07-2019
Publisher: The Electrochemical Society
Date: 2006
DOI: 10.1149/1.2345550
Publisher: American Chemical Society (ACS)
Date: 06-07-2018
Abstract: Metal selenides have attracted increased attention as promising electrode materials for electrochemical energy storage and conversion systems including metal-ion batteries and water splitting. However, their practical application is greatly hindered by collapse of the microstructure, thus leading to performance fading. Tuning the structure at nanoscale of these materials is an effective strategy to address the issue. Herein, we craft MoSe
Publisher: Elsevier BV
Date: 08-2010
Publisher: Elsevier BV
Date: 2010
Publisher: Springer Science and Business Media LLC
Date: 2002
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2NR00227B
Abstract: A composite made up of BiOCl nanoparticles encapsulated in N-doped carbon nanotubes (BiOCl@N-CNTs) demonstrates ideal K ion storage properties owing to its outstanding composition and structural design.
Publisher: Springer Science and Business Media LLC
Date: 08-10-2006
Publisher: American Chemical Society (ACS)
Date: 10-01-2020
Abstract: The practical application of Li-S batteries is h ered because of their poor cycling stability caused by electrolyte-dissolved lithium polysulfides. Dual functionalities such as strong chemical adsorption stability and high conductivity are highly desired for an ideal host material for the sulfur-based cathode. Herein, a uniform polypyrrole layer-coated sulfur/graphene aerogel composite is designed and synthesized using a novel vapor-phase deposition method. The polypyrrole layer simultaneously acts as a host and an adsorbent for efficient suppression of polysulfide dissolution through strong chemical interaction. The density functional theory calculations reveal that the polypyrrole could trap lithium polysulfides through stronger bonding energy. In addition, the deflation of sulfur/graphene hydrogel during the vapor-phase deposition process enhances the contact of sulfur with matrices, resulting in high sulfur utilization and good rate capability. As a result, the synthesized polypyrrole-coated sulfur/graphene aerogel composite delivers specific discharge capacities of 1167 and 409.1 mA h g
Publisher: Wiley
Date: 23-09-2020
Abstract: The performance of rechargeable batteries is influenced by the structural and phase changes of components during cycling. Neutron powder diffraction (NPD) provides unique and useful information concerning the structure-function relation of battery components and can be used to study the changes to component phase and structure during battery cycling, known as in operando measurement studies. The development and use of NPD for in operando measurements of batteries is summarized along with detailed experimental approaches that impact the insights gained by these. A summary of the information gained concerning battery function using in operando NPD measurements is provided, including the structural and phase evolution of electrode materials and charge-carrying ion diffusion pathways through these, which are critical to the development of battery technology.
Publisher: Wiley
Date: 16-12-2022
Abstract: Zinc metal battery (ZMB) is promising as the next generation of energy storage system, but challenges relating to dendrites and corrosion of the zinc anode are restricting its practical application. Here, to stabilize Zn anode, we report a controlled electrolytic method for a monolithic solid‐electrolyte interphase (SEI) via a high dipole moment solvent dimethyl methylphosphonate (DMMP). The DMMP‐based electrolytes can generate a homogeneous and robust phosphate SEI (Zn 3 (PO 4 ) 2 and ZnP 2 O 6 ). Benefiting from the protecting impact of this in situ monolithic SEI, the zinc electrode exhibits long‐term cycling of 4700 h and a high Coulombic efficiency 99.89 % in Zn|Zn and Zn|Cu cell, respectively. The full V 2 O 5 |Zn battery with DMMP‐H 2 O hybrid electrolyte exhibits a high capacity retention of 82.2 % following 4000 cycles under 5 A g −1 . The first success in constructing the monolithic phosphate SEI will open a new avenue in electrolyte design for highly reversible and stable Zn metal anodes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/B915779D
Publisher: Elsevier BV
Date: 09-2015
Publisher: Wiley
Date: 28-05-2018
Publisher: Elsevier BV
Date: 02-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA05091C
Abstract: In situ carbon supported V 2 O 5 nanosheets were synthesized by a simple method and showed excellent anode and cathode capacity for LIBs.
Publisher: American Chemical Society (ACS)
Date: 08-2007
DOI: 10.1021/JP072803F
Publisher: Wiley
Date: 22-04-2021
Abstract: Sulfides are promising anode candidates because of their relatively large theoretical discharge/charge specific capacity and pretty small volume changes, but suffers from sluggish kinetics and structural instability upon cycling. Phase engineering can be designed to overcome the weakness of the electrochemical performance of sulfide anodes. By choosing nickel sulfides (α‐NiS, β‐NiS, and NiS 2 ) supported by reduced graphene oxide (rGO) as model systems, it is demonstrated that the nickel sulfides with different crystal structures show different performances in both sodium‐ion and potassium‐ion batteries. In particular, the α‐NiS/rGO display superior stable capacity (≈426 mAh g −1 for 500 cycles at 500 mA g −1 ) and exceptional rate capability (315 mAh g −1 at 2000 mA g −1 ). The combined density functional theory calculations and experimental studies reveal that the hexagonal structure is more conducive to ion absorption and conduction, a higher pseudocapacitive contribution, and higher mechanical ability to relieve the stress caused by the volume changes. Correspondingly, the phase engineered nickel sulfide coupled with the conducting rGO network synergistically boosts the electrochemical performance of batteries. This work sheds light on the use of phase engineering as an essential strategy for exploring materials with satisfactory electrochemical performance for sodium‐ion and potassium‐ion batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0CC00167H
Abstract: A novel type of 1D nanostructure with characteristics between those of a solid nanowire and a hollow nanotube, i.e. a peashell-like nanostructure comprising a 1D wire with periodically embedded hollow nanobubbles, is presented for the first time as an ex le, MgO peashell-like nanostructures exhibit extraordinary dielectric and magnetization properties.
Publisher: American Chemical Society (ACS)
Date: 29-04-2019
Abstract: Although lithium-sulfur batteries have been regarded as the most promising candidates for next-generation energy storage devices with high specific capacity, their rapid capacity decay, mainly caused by volume expansion and dissolution of polysulfides, has limited their practical applications. Aiming at these issues, herein, we have designed an ideal three-dimensional (3D)-structured polypyrrole@sulfur@graphene aerogel (PPy@S@GA) as an efficient sulfur host via advanced pyrrole vapor polymerization. GA with an interconnected 3D porous structure provides an excellent conductive network for electrons and a channel for ion transfer, as well as a physical barrier or absorber for the polysulfides. In addition, physical confinement and chemical adsorption are further strengthened by the PPy coating layer with polar nitrogen. The electrode with the PPy@S@GA 3D structure delivered a superior initial discharge specific capacity of 1135 mA h g
Publisher: Wiley
Date: 13-02-2023
DOI: 10.1002/SMM2.1185
Abstract: Lithium metal batteries (LMBs) have attracted considerable interest for use in electric vehicles and as next‐generation energy storage devices because of their high energy density. However, a significant practical drawback with LMBs is the instability of the Li metal/electrolyte interface, with concurrent parasitic reactions and dendrite growth, that leads to low Coulombic efficiency and poor cycle life. Owing to the significant role of electrolytes in batteries, rationally designed electrolytes can improve the electrochemical performance of LMBs and possibly achieve fast charge and a wide range of working temperatures to meet various requirements of the market in the future. Although there are some review papers about electrolytes for LMBs, the focus has been on a single parameter or single performance separately and, therefore, not sufficient for the design of electrolytes for advanced LMBs for a wide range of working environments. This review presents a systematic summary of recent progress made in terms of electrolytes, covering the fundamental understanding of the mechanism, scientific challenges, and strategies to address drawbacks of electrolytes for high‐performance LMBs. The advantages and disadvantages of various electrolyte strategies are also analyzed, yielding suggestions for optimum properties of electrolytes for advanced LMBs applications. Finally, the most promising research directions for electrolytes are discussed briefly.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1EE00531F
Abstract: A succinct but critical survey of the recent progress in LMBs is presented, comprising their intriguing electrode chemistries, underlying electrochemical behaviors with various electrolytes, and sophisticated electrode–electrolyte interfaces in the context of the most recent research and development.
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 10-2008
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3EE01453C
Publisher: Elsevier BV
Date: 09-2009
Publisher: Trans Tech Publications, Ltd.
Date: 09-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.700.166
Abstract: We fabricated Pd thin films from 2 to 35 nm thick via thermal evaporation, and a hermetically sealed hydrogen optical cell was used to characterize the films for properties such as hydrogen fractional ratio, optical switching contrast (Weber contrast), and response and recovery times. An atomic force microscope with a high resolution scanning tip was used to study the evolution of the film morphology.
Publisher: American Chemical Society (ACS)
Date: 19-08-2019
Abstract: Electrode materials that act through the electrochemical conversion mechanism, such as metal selenides, have been considered as promising anode candidates for lithium-ion batteries (LIBs), although their fast capacity attenuation and inadequate electrical conductivity are impeding their practical application. In this work, these issues are addressed through the efficient fabrication of MnSe nanoparticles inside porous carbon hierarchical architectures for evaluation as anode materials for LIBs. Density functional theory simulations indicate that there is a completely irreversible phase transformation during the initial cycle, and the high structural reversibility of β-MnSe provides a low energy barrier for the diffusion of lithium ions. Electron localization function calculations demonstrate that the phase transformation leads to high charge transfer kinetics and a favorable lithium ion diffusion coefficient. Benefitting from the phase transformation and unique structural engineering, the MnSe/C chestnut-like structures with boosted conductivity deliver enhanced lithium storage performance (885 mA h g
Publisher: American Chemical Society (ACS)
Date: 16-07-2012
DOI: 10.1021/AM301055Z
Abstract: Uniform one-dimensional (1D) MoS2-C composite nanostructures including nanorods and nanotubes have been produced through a sulfidation reaction in H2S flow using MoOx olyaniline hybrid nanostructures as the precursor. These MoS2-C 1D nanostructures exhibit greatly enhanced electrochemical performance as anode materials for lithium-ion batteries. Typically, stable capacity retention of 776 mA h g(-1) can be achieved after 100 cycles for MoS2-C nanotubes. Even cycled at a high current density of 1000 mA g(-1), these structures can still deliver high capacities of 450-600 mA h g(-1). The unique 1D nanostructure and the extra carbon in the hybrid structure are beneficial to the greatly improved electrochemical performance of these MoS2-C nanocomposites.
Publisher: The Electrochemical Society
Date: 29-12-2018
DOI: 10.1149/2.0411903JES
Publisher: Wiley
Date: 07-10-2021
Publisher: Elsevier BV
Date: 11-2017
Publisher: Wiley
Date: 05-09-2017
Publisher: Elsevier BV
Date: 02-2006
Publisher: Wiley
Date: 08-06-2017
Publisher: Springer Science and Business Media LLC
Date: 12-12-2017
Publisher: Wiley
Date: 17-06-2019
Publisher: Elsevier BV
Date: 11-2014
Publisher: Elsevier BV
Date: 09-2017
Publisher: Wiley
Date: 06-11-2021
Publisher: Wiley
Date: 24-10-2017
Publisher: American Chemical Society (ACS)
Date: 09-12-2015
DOI: 10.1021/ACS.INORGCHEM.5B01914
Abstract: Sandwich-like V2O5/graphene mesoporous composite has been synthesized by a facile solvothermal approach. The crystalline structure, morphology, and electrochemical performance of the as-prepared materials have been investigated in detail. The results demonstrate that the 30-50 nm V2O5 particles are homogeneously anchored on conducting graphene sheets, which allow the V2O5 nanoparticles to be wired up to a current collector through the underlying conducting graphene layers. As an anode material for lithium ion batteries, the composite exhibits a high reversible capacity of 1006 mAh g(-1) at a current density of 0.5 A g(-1) after 300 cycles. It also exhibits excellent rate performance with a discharge capacity of 500 mAh g(-1) at the current density of 3.0 A g(-1), which is superior to the performance of the vanadium-based materials reported previously. The electrochemical properties demonstrate that the sandwich-like V2O5/graphene mesoporous composite could be a promising candidate material for high-capacity anode in lithium ion batteries.
Publisher: Elsevier BV
Date: 12-2019
Publisher: Elsevier BV
Date: 11-2020
Publisher: Elsevier BV
Date: 02-2016
Publisher: Wiley
Date: 14-04-2021
Publisher: American Chemical Society (ACS)
Date: 24-10-2023
Publisher: Wiley
Date: 03-2022
Abstract: Metallic‐phase selenide molybdenum (1T‐MoSe 2 ) has become a rising star for sodium storage in comparison with its semiconductor phase (2H‐MoSe 2 ) owing to the intrinsic metallic electronic conductivity and unimpeded Na + diffusion structure. However, the thermodynamically unstable nature of 1T phase renders it an unprecedented challenge to realize its phase control and stabilization. Herein, a plasma‐assisted P‐doping‐triggered phase‐transition engineering is proposed to synthesize stabilized P‐doped 1T phase MoSe 2 nanoflower composites (P‐1T‐MoSe 2 NFs). Mechanism analysis reveals significantly decreased phase‐transition energy barriers of the plasma‐induced Se‐vacancy‐rich MoSe 2 from 2H to 1T owing to its low crystallinity and reduced structure stability. The vacancy‐rich structure promotes highly concentrated P doping, which manipulates the electronic structure of the MoSe 2 and urges its phase transition, acquiring a high transition efficiency of 91% accompanied with ultrahigh phase stability. As a result, the P‐1T‐MoSe 2 NFs deliver an exceptional high reversible capacity of 510.8 mAh g −1 at 50 mA g −1 with no capacity fading over 1000 cycles at 5000 mA g −1 for sodium storage. The underlying mechanism of this phase‐transition engineering verified by profound analysis provides informative guide for designing advanced materials for next‐generation energy‐storage systems.
Publisher: Trans Tech Publications, Ltd.
Date: 04-2003
Publisher: Elsevier BV
Date: 12-2021
Publisher: Wiley
Date: 04-09-2021
Abstract: The development of reliable and safe high‐energy‐density lithium‐ion batteries is hindered by the structural instability of cathode materials during cycling, arising as a result of detrimental phase transformations occurring at high operating voltages alongside the loss of active materials induced by transition metal dissolution. Originating from the fundamental structure/function relation of battery materials, the authors purposefully perform crystallographic‐site‐specific structural engineering on electrode material structure, using the high‐voltage LiNi 0.5 Mn 1.5 O 4 (LNMO) cathode as a representative, which directly addresses the root source of structural instability of the Fd m structure. By employing Sb as a dopant to modify the specific issue‐involved 16 c and 16 d sites simultaneously, the authors successfully transform the detrimental two‐phase reaction occurring at high‐voltage into a preferential solid‐solution reaction and significantly suppress the loss of Mn from the LNMO structure. The modified LNMO material delivers an impressive 99% of its theoretical specific capacity at 1 C, and maintains 87.6% and 72.4% of initial capacity after 1500 and 3000 cycles, respectively. The issue‐tracing site‐specific structural tailoring demonstrated for this material will facilitate the rapid development of high‐energy‐density materials for lithium‐ion batteries.
Publisher: Elsevier BV
Date: 02-2013
Publisher: Elsevier BV
Date: 05-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA05982D
Abstract: A novel composite consisting of hollow carbon spheres with encapsulated germanium (Ge@HCS) was synthesized by introducing a germanium precursor into the porous-structured hollow carbon spheres.
Publisher: Elsevier BV
Date: 04-2012
Publisher: Wiley
Date: 05-05-2022
Abstract: Oxides composed of an oxygen framework and interstitial cations are promising cathode materials for lithium‐ion batteries. However, the instability of the oxygen framework under harsh operating conditions results in fast battery capacity decay, due to the weak orbital interactions between cations and oxygen (mainly 3 d –2 p interaction). Here, a robust and endurable oxygen framework is created by introducing strong 4 s –2 p orbital hybridization into the structure using LiNi 0.5 Mn 1.5 O 4 oxide as an ex le. The modified oxide delivers extraordinarily stable battery performance, achieving 71.4 % capacity retention after 2000 cycles at 1 C. This work shows that an orbital‐level understanding can be leveraged to engineer high structural stability of the anion oxygen framework of oxides. Moreover, the similarity of the oxygen lattice between oxide electrodes makes this approach extendable to other electrodes, with orbital‐focused engineering a new avenue for the fundamental modification of battery materials.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1EE01851E
Abstract: We report a bio-inspired design strategy for constructing an in situ polymeric SEI in aqueous Zn chemistry. This SEI can restrain interfacial side reactions, facilitate a uniform Zn 2+ flux, and consequently endow a highly stable Zn metal anode.
Publisher: Frontiers Media SA
Date: 10-09-2018
Publisher: Wiley
Date: 15-12-2016
Publisher: Wiley
Date: 21-08-2013
Abstract: 3D porous carbon-coated Li3 N nanofibers are successfully fabricated via the electrospinning technique. The as-prepared nanofibers exhibit a highly improved hydrogen-sorption performance in terms of both thermodynamics and kinetics. More interestingly, a stable regeneration can be achieved due to the unique structure of the nanofibers, over 10 cycles of H2 sorption at a temperature as low as 250 °C.
Publisher: Elsevier BV
Date: 09-2021
Publisher: Elsevier BV
Date: 05-2011
Publisher: American Association for the Advancement of Science (AAAS)
Date: 03-05-2019
Abstract: A general review proposes research strategies for overcoming essential issues in the research of potassium-ion batteries.
Publisher: Elsevier BV
Date: 12-2020
Publisher: Wiley
Date: 27-10-2023
Publisher: Elsevier BV
Date: 02-2010
Publisher: Elsevier BV
Date: 03-2015
Publisher: Elsevier BV
Date: 07-2019
Publisher: Springer Science and Business Media LLC
Date: 2012
Publisher: Royal Society of Chemistry (RSC)
Date: 24-11-2014
DOI: 10.1039/C4RA12260G
Publisher: Elsevier BV
Date: 06-2013
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA06956H
Abstract: Two-dimensional dysprosium-modified bamboo-slip-like Li 4 Ti 5 O 12 have been synthesized by one-pot hydrothermal method. The s les exhibit superior high-rate capability, and excellent cycle performance.
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA01804D
Abstract: We have developed a simple, efficient, and environmentally benign approach to the synthesis of reduced graphene oxide (RGO)/metal oxide composites via hydrothermal reaction of graphene oxide and metal powder under mild reaction conditions.
Publisher: No publisher found
Date: 2002
Publisher: Springer Science and Business Media LLC
Date: 14-06-2016
DOI: 10.1038/SREP27957
Abstract: Particular N, S co-doped graphene/Fe 3 O 4 hybrids have been successfully synthesized by the combination of a simple hydrothermal process and a subsequent carbonization heat treatment. The nanostructures exhibit a unique composite architecture, with uniformly dispersed Fe 3 O 4 nanoparticles and N, S co-doped graphene encapsulant. The particular porous characteristics with many meso/micro holes ores, the highly conductive N, S co-doped graphene, as well as the encapsulating N, S co-doped graphene with the high-level nitrogen and sulfur doping, lead to excellent electrochemical performance of the electrode. The N-S-G/Fe 3 O 4 composite electrode exhibits a high initial reversible capacity of 1362.2 mAhg −1 , a high reversible specific capacity of 1055.20 mAhg −1 after 100 cycles, and excellent cycling stability and rate capability, with specific capacity of 556.69 mAhg −1 when cycled at the current density of 1000 mAg −1 , indicating that the N-S-G/Fe 3 O 4 composite is a promising anode candidate for Li-ion batteries.
Publisher: Elsevier BV
Date: 07-2018
Publisher: Springer Science and Business Media LLC
Date: 07-09-2018
DOI: 10.1038/S41467-018-05786-1
Abstract: Earth-abundant potassium is a promising alternative to lithium in rechargeable batteries, but a pivotal limitation of potassium-ion batteries is their relatively low capacity and poor cycling stability. Here, a high-performance potassium-ion battery is achieved by employing few-layered antimony sulfide/carbon sheet composite anode fabricated via one-step high-shear exfoliation in ethanol/water solvent. Antimony sulfide with few-layered structure minimizes the volume expansion during potassiation and shortens the ion transport pathways, thus enhancing the rate capability while carbon sheets in the composite provide electrical conductivity and maintain the electrode cycling stability by trapping the inevitable by-product, elemental sulfur. Meanwhile, the effect of the exfoliation solvent on the fabrication of two-dimensional antimony sulfide/carbon is also investigated. It is found that water facilitates the exfoliation by lower diffusion barrier along the [010] direction of antimony sulfide, while ethanol in the solvent acts as the carbon source for in situ carbonization.
Publisher: Wiley
Date: 17-10-2022
Abstract: H 2 evolution is the reason for poor reversibility and limited cycle stability with Zn‐metal anodes, and impedes practical application in aqueous zinc‐ion batteries (AZIBs). Here, using a combined gas chromatography experiment and computation, it is demonstrated that H 2 evolution primarily originates from solvated water, rather than free water without interaction with Zn 2+ . Using linear sweep voltammetry (LSV) in salt electrolytes, H 2 evolution is evidenced to occur at a more negative potential than zinc reduction because of the high overpotential against H 2 evolution on Zn metal. The hypothesis is tested and, using a glycine additive to reduce solvated water, it is confirmed that H 2 evolution and “parasitic” side reactions are suppressed on the Zn anode. This electrolyte additive is evidenced to suppress H 2 evolution, reduce corrosion, and give a uniform Zn deposition in Zn|Zn and Zn|Cu cells. It is demonstrated that Zn|PANI (highly conductive polyaniline) full cells exhibit boosted electrochemical performance in 1 M ZnSO 4 –3 M glycine electrolyte. It is concluded that this new understanding of electrochemistry of H 2 evolution can be used for design of relatively low‐cost and safe AZIBs for practical large‐scale energy storage.
Publisher: Wiley
Date: 12-02-2021
Publisher: Wiley
Date: 22-12-2023
Abstract: The application of Li‐rich layered oxides is hindered by their dramatic capacity and voltage decay on cycling. This work comprehensively studies the mechanistic behaviour of cobalt‐free Li 1.2 Ni 0.2 Mn 0.6 O 2 and demonstrates the positive impact of two‐phase Ru doping. A mechanistic transition from the monoclinic to the hexagonal behaviour is found for the structural evolution of Li 1.2 Ni 0.2 Mn 0.6 O 2, and the improvement mechanism of Ru doping is understood using the combination of in operando and post‐mortem synchrotron analyses. The two‐phase Ru doping improves the structural reversibility in the first cycle and restrains structural degradation during cycling by stabilizing oxygen (O 2− ) redox and reducing Mn reduction, thus enabling high structural stability, an extraordinarily stable voltage (decay rate .45 mV per cycle), and a high capacity‐retention rate during long‐term cycling. The understanding of the structure‐function relationship of Li 1.2 Ni 0.2 Mn 0.6 O 2 sheds light on the selective doping strategy and rational materials design for better‐performance Li‐rich layered oxides.
Publisher: Elsevier BV
Date: 09-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4CC00294F
Abstract: The exfoliated MoS 2 –C composite was tested as a novel anode material for sodium ion batteries with high capacity and prolonged cycling life. Its unique structure and the optimized electrolyte effectively promote Na-storage performance.
Publisher: Elsevier BV
Date: 07-2014
Publisher: Elsevier BV
Date: 2016
Publisher: Wiley
Date: 02-03-2017
Abstract: Cathode material degradation during cycling is one of the key obstacles to upgrading lithium-ion and beyond-lithium-ion batteries for high-energy and varied-temperature applications. Herein, we highlight recent progress in material surface-coating as the foremost solution to resist the surface phase-transitions and cracking in cathode particles in mono-valent (Li, Na, K) and multi-valent (Mg, Ca, Al) ion batteries under high-voltage and varied-temperature conditions. Importantly, we shed light on the future of materials surface-coating technology with possible research directions. In this regard, we provide our viewpoint on a novel hybrid surface-coating strategy, which has been successfully evaluated in LiCoO
Publisher: Springer Science and Business Media LLC
Date: 16-10-2023
Publisher: Wiley
Date: 12-12-2019
Abstract: Graphene is widely applied as an electrode material in energy storage fields. However, the strong π-π interaction between graphene layers and the stacking issues lead to a great loss of electrochemically active surface area, damaging the performance of graphene electrodes. Developing 3D graphene architectures that are constructed of graphene sheet subunits is an effective strategy to solve this problem. The graphene architectures can be directly utilized as binder-free electrodes for energy storage devices. Furthermore, they can be used as a matrix to support active materials and further improve their electrochemical performance. Here, recent advances in synthesizing 3D graphene architectures and their composites as well as their application in different energy storage devices, including various battery systems and supercapacitors are reviewed. In addition, their challenges for application at the current stage are discussed and future development prospects are indicated.
Publisher: Elsevier BV
Date: 03-2015
Publisher: American Chemical Society (ACS)
Date: 14-04-2011
DOI: 10.1021/JP2020319
Publisher: American Chemical Society (ACS)
Date: 17-04-2015
Publisher: Elsevier BV
Date: 2010
Publisher: Elsevier BV
Date: 07-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA02223K
Abstract: In this review, recent electrolyte design strategies and progress are given, along with the discussion of relative key features and properties, as well as the practical design and considerations.
Publisher: Wiley
Date: 25-04-2017
Publisher: Elsevier BV
Date: 06-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3EE01360J
Abstract: This Review provides a comprehensive overview of recent advancements in CTF materials and CTF-based batteries. The Review aims to make CTF-based batteries viable for next-generation high-energy battery systems.
Publisher: Wiley
Date: 29-01-2020
Abstract: Metal-CO
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA01158B
Abstract: Guanidinium octahydrotriborate, with a melting point of −10 °C, releases wt% high purity hydrogen below 100 °C.
Publisher: Elsevier BV
Date: 05-2008
Publisher: Wiley
Date: 23-11-2021
Publisher: American Scientific Publishers
Date: 02-2002
DOI: 10.1166/JNN.2002.076
Abstract: Nanocrystalline alpha-Ni(OH)2 was prepared by an ultrasonic precipitation/stirring method. Results of X-ray diffraction, transmission electron microscopy, infrared, and thermogravimetric measurements confirm that the s le obtained is alpha phase. Compared with the s le prepared without ultrasonic stirring, the crystal structure of the alpha phase s le has been changed from beta phase. The crystalline size of the s le is about 20 nm, which is smaller than the s le produced without ultrasonic stirring (70 nm).
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8CS00904J
Abstract: This review provides insight into various nanostructures designed by spray pyrolysis and their applications in energy storage and conversion.
Publisher: Springer Science and Business Media LLC
Date: 08-11-2022
Publisher: Wiley
Date: 03-07-2018
Abstract: Ternary transition metal oxides (TTMOs) have attracted considerable attention for rechargeable batteries because of their fascinating properties. However, the unsatisfactory electrochemical performance originating from the poor intrinsic electronic conductivity and inferior structural stability impedes their practical applications. Here, the novel hierarchical porous NiO/β-NiMoO
Publisher: Elsevier BV
Date: 2011
Publisher: Elsevier BV
Date: 11-2009
Publisher: Informa UK Limited
Date: 10-12-2009
Publisher: American Chemical Society (ACS)
Date: 14-07-2014
DOI: 10.1021/NN503582C
Abstract: Structural phase transitions can be used to alter the properties of a material without adding any additional elements and are therefore of significant technological value. It was found that the hexagonal-SnS2 phase can be transformed into the orthorhombic-SnS phase after an annealing step in an argon atmosphere, and the thus transformed SnS shows enhanced sodium-ion storage performance over that of the SnS2, which is attributed to its structural advantages. Here, we provide the first report on a SnS@graphene architecture for application as a sodium-ion battery anode, which is built from two-dimensional SnS and graphene nanosheets as complementary building blocks. The as-prepared SnS@graphene hybrid nanostructured composite delivers an excellent specific capacity of 940 mAh g(-1)and impressive rate capability of 492 and 308 mAh g(-1) after 250 cycles at the current densities of 810 and 7290 mA g(-1), respectively. The performance was found to be much better than those of most reported anode materials for Na-ion batteries. On the basis of combined ex situ Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and ex situ X-ray diffraction, the formation mechanism of SnS@graphene and the synergistic Na-storage reactions of SnS in the anode are discussed in detail. The SnS experienced a two-structural-phase transformation mechanism (orthorhombic-SnS to cubic-Sn to orthorhombic-Na3.75Sn), while the SnS2 experienced a three-structural-phase transformation mechanism (hexagonal-SnS2 to tetragonal-Sn to orthorhombic-Na3.75Sn) during the sodiation process. The lesser structural changes of SnS during the conversion are expected to lead to good structural stability and excellent cycling stability in its sodium-ion battery performance. These results demonstrate that the SnS@graphene architecture offers unique characteristics suitable for high-performance energy storage application.
Publisher: Wiley
Date: 28-11-2020
Abstract: Topological insulators have spurred worldwide interest, but their advantageous properties have scarcely been explored in terms of electrochemical energy storage, and their high‐rate capability and long‐term cycling stability still remain a significant challenge to harvest. p‐Type topological insulator SnSb 2 Te 4 nanodots anchoring on few‐layered graphene (SnSb 2 Te 4 /G) are synthesized as a stable anode for high‐rate lithium‐ion batteries and potassium‐ion batteries through a ball‐milling method. These SnSb 2 Te 4 /G composite electrodes show ultralong cycle lifespan (478 mAh g −1 at 1 A g −1 after 1000 cycles) and excellent rate capability (remaining 373 mAh g −1 even at 10 A g −1 ) in Li‐ion storage owing to the rapid ion transport accelerated by the PN heterojunction, virtual electron highways provided by the conductive topological surface state, and extraordinary pseudocapacitive contribution, whose excellent phase reversibility is confirmed by synchrotron in situ X‐ray powder diffraction. Surprisingly, durable lifespan even at practical levels of mass loading ( mg cm −2 ) for Li‐ion storage and excellent K‐ion storage performance are also observed. This work provides new insights for designing high‐rate electrode materials by boosting conductive topological surfaces, atomic doping, and the interface interaction.
Publisher: Elsevier BV
Date: 2007
Publisher: American Chemical Society (ACS)
Date: 08-04-2016
DOI: 10.1021/JACS.6B00858
Abstract: The exploration of efficient nonprecious metal eletrocatalysis of the hydrogen evolution reaction (HER) is an extraordinary challenge for future applications in sustainable energy conversion. The family of first-row-transition-metal dichalcogenides has received a small amount of research, including the active site and dynamics, relative to their extraordinary potential. In response, we developed a strategy to achieve synergistically active sites and dynamic regulation in first-row-transition-metal dichalcogenides by the heterogeneous spin states incorporated in this work. Specifically, taking the metallic Mn-doped pyrite CoSe2 as a self-adaptived, subtle atomic arrangement distortion to provide additional active edge sites for HER will occur in the CoSe2 atomic layers with Mn incorporated into the primitive lattice, which is visually verified by HRTEM. Synergistically, the density functional theory simulation results reveal that the Mn incorporation lowers the kinetic energy barrier by promoting H-H bond formation on two adjacently adsorbed H atoms, benefiting H2 gas evolution. As a result, the Mn-doped CoSe2 ultrathin nanosheets possess useful HER properties with a low overpotential of 174 mV, an unexpectedly small Tafel slope of 36 mV/dec, and a larger exchange current density of 68.3 μA cm(-2). Moreover, the original concept of coordinated regulation presented in this work can broaden horizons and provide new dimensions in the design of newly highly efficient catalysts for hydrogen evolution.
Publisher: Elsevier BV
Date: 05-2011
Publisher: Elsevier BV
Date: 08-2015
Publisher: Wiley
Date: 24-02-2021
Publisher: Elsevier BV
Date: 07-2017
Publisher: Elsevier BV
Date: 05-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM15075A
Publisher: Wiley
Date: 15-01-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA13324A
Publisher: Elsevier BV
Date: 12-2009
Publisher: Wiley
Date: 25-10-2021
Abstract: The plating/stripping of Li dendrites can fracture the static solid electrolyte interphase (SEI) and cause significant dynamic volume variations in the Li anode, which give rise to poor cyclability and severe safety hazards. Herein, a tough polymer with a slide‐ring structure was designed as a self‐adaptive interfacial layer for Li anodes. The slide‐ring polymer with a dynamically crosslinked network moves freely while maintaining its toughness and fracture resistance, which allows it can to dissipate the tension induced by Li dendrites on the interphase layer. Moreover, the slide‐ring polymer is highly stretchable, elastic, and displays an ultrafast self‐healing ability, which allows even pulverized Li to remain coalesced without disintegrating upon consecutive cycling. The Li anodes demonstrate greatly improved suppression of Li dendrite formation, as evidenced by the high critical current density (6 mA cm −2 ) and stable cycling for the full cells with high‐areal capacity LiFePO 4 , high‐voltage NCM, and S cathodes.
Publisher: Wiley
Date: 26-04-2012
Publisher: Elsevier BV
Date: 10-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0EE03181J
Abstract: Recent advances of MOFs/COFs in research towards Li–S batteries in terms of cathodes, electrolytes, separators, and Li anodes have been fully investigated.
Publisher: American Chemical Society (ACS)
Date: 05-01-2016
Abstract: In this work, lithium-doped lanthanum titanate (LLTO) nanosheets have been prepared by a facile hydrothermal approach. It is found that with the incorporation of lithium ions, the morphology of the product transfers from rectangular nanosheets to irregular nanosheets along with a transition from La2Ti2O7 to Li0.5La0.5TiO3. The as-prepared LLTO nanosheets are used to enhance electrochemical performance of the LiCo1/3Ni1/3Mn1/3O2 (CNM) electrode by forming a higher lithium-ion conductive network. The LiCo1/3Ni1/3Mn1/3O2-Li0.5La0.5TiO3 (CNM-LLTO) electrode shows better a lithium diffusion coefficient of 1.5 × 10(-15) cm(2) s(-1), resulting from higher lithium-ion conductivity of LLTO and shorter lithium diffusion path, compared with the lithium diffusion coefficient of CNM electrode (5.44 × 10(-16) cm(2) s(-1)). Superior reversibility and stability are also found in the CNM-LLTO electrode, which retains a capacity at 198 mAh/g after 100 cycles at a rate of 0.1 C. Therefore, it can be confirmed that the existence of LLTO nanosheets can act as bridges to facilitate the lithium-ion diffusion between the active materials and electrolytes.
Publisher: Elsevier BV
Date: 2015
Publisher: MyJove Corporation
Date: 10-11-2014
DOI: 10.3791/52284
Publisher: American Chemical Society (ACS)
Date: 27-12-2012
DOI: 10.1021/JP210366W
Publisher: Springer Science and Business Media LLC
Date: 08-2009
Abstract: LiBH 4 /Al mixtures with various mol ratios were prepared by ball milling. The hydrogen storage properties of the mixtures were evaluated by differential scanning calorimetry/thermogravimetry analyses coupled with mass spectrometry measurements. The phase compositions and chemical state of elements for the LiBH 4 /Al mixtures before and after hydrogen desorption and absorption reactions were assessed via powder x-ray diffraction, infrared spectroscopy, and x-ray photoelectron spectroscopy. Dehydrogenation results revealed that LiBH 4 could react with Al to form AlB 2 and AlLi compounds with a two-step decomposition, resulting in improved dehydrogenation. The rehydrogenation experiments were investigated at 600 °C with various H 2 pressure. It was found that intermediate hydride was formed firstly at a low H 2 pressure of 30 atm, while LiBH 4 could be reformed completely after increasing the pressure to 100 atm. Absorption/desorption cycle results showed that the dehydrogenation temperature increased and the hydrogen capacity degraded with the increase of cycle numbers.
Publisher: Wiley
Date: 03-2020
Publisher: Wiley
Date: 17-04-2023
Abstract: Aqueous Zn‐Iodine (I 2 ) batteries are attractive for large‐scale energy storage. However, drawbacks include, Zn dendrites, hydrogen evolution reaction (HER), corrosion and, cathode “shuttle” of polyiodines. Here we report a class of N‐containing heterocyclic compounds as organic pH buffers to obviate these. We evidence that addition of pyridine /imidazole regulates electrolyte pH, and inhibits HER and anode corrosion. In addition, pyridine and imidazole preferentially absorb on Zn metal, regulating non‐dendritic Zn plating /stripping, and achieving a high Coulombic efficiency of 99.6 % and long‐term cycling stability of 3200 h at 2 mA cm −2 , 2 mAh cm −2 . It is also confirmed that pyridine inhibits polyiodines shuttling and boosts conversion kinetics for I − /I 2 . As a result, the Zn‐I 2 full battery exhibits long cycle stability of 000 cycles and high specific capacity of 105.5 mAh g −1 at 10 A g −1 . We conclude organic pH buffer engineering is practical for dendrite‐free and shuttle‐free Zn‐I 2 batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA00047J
Abstract: 3D holey-graphene networks were constructed with a generalized ex situ method for various electroactive nanoparticles to expedite Li + /electron migration.
Publisher: Springer Science and Business Media LLC
Date: 20-09-2022
DOI: 10.1038/S41467-022-33275-Z
Abstract: Single-atom catalysts offer maximal atom utilization efficiencies and high-electronegativity heteroatoms play a crucial role in coordinating reactive single metal atoms to prevent agglomeration. However, these strong coordination bonds withdraw electron density for coordinated metal atoms and consequently affect their catalytic activity. Herein we reveal the high loading (11.3 wt%) and stabilization of moderately coordinated Cu-P 3 structure on black phosphorus support by a photochemical strategy with auxiliary hydrogen. Single-atom Cu sites with an exceptional electron-rich feature show the $$\\triangle {G}_{{{{{{\\rm{H}}}}}}*}$$ △ G H * close to zero to favor catalysis. Neighboring Cu atoms work in synergy to lower the energy of key water adsorption and dissociation intermediates. The reported catalyst shows a low overpotential of only 41 mV at 10 mA cm −2 and Tafel slope of 53.4 mV dec −1 for the alkaline hydrogen evolution reaction, surpassing both isolated Cu single atoms and Cu nanoclusters. The promising materials design strategy sheds light on the design and fabrication of high-loading single metal atoms and the role of neighboring single atoms for enhanced reaction kinetics.
Publisher: Wiley
Date: 13-02-2020
Publisher: American Chemical Society (ACS)
Date: 11-01-2019
Abstract: An ingeniously designed porous structure can synergistically optimize the desired properties and maximize the advantages of a material as an electrode for a high-performance energy storage system. The active material with a porous nanostructure could reduce the ion diffusion path and buffer the strain caused by the volume changes during cycling. Furthermore, combining the active material with a three-dimensional (3D) graphene aerogel (GA) matrix is an ideal way to maintain the structural integrity, improve the conductivity, and overcome the aggregation problem of the nanomaterials. Herein, we adopted a facile template-based strategy to derive a composite of 3D hierarchically porous cobalt phosphide nanocubes with a graphene aerogel (CoP@GA). The as-prepared CoP@GA features porous cobalt phosphide nanocubes that are firmly encapsulated and uniformly distributed in the well-defined graphene aerogel skeleton. Benefiting from the hierarchical porosity, structural integrity, and conductive network, the CoP@GA electrode manifests an ultrahigh initial Coulombic efficiency (88.6%), outstanding lithium storage performance in terms of excellent cycling performance (805.3 mAh·g
Publisher: Wiley
Date: 12-10-2017
Abstract: The concept of an all-integrated design with multifunctionalization is widely employed in optoelectronic devices, sensors, resonator systems, and microfluidic devices, resulting in benefits for many ongoing research projects. Here, maintaining structural/electrode stability against large volume change by means of an all-integrated design is realized for silicon anodes. An all-integrated silicon anode is achieved via multicomponent interlinking among carbon@void@silica@silicon (CVSS) nanospheres and cross-linked carboxymethyl cellulose and citric acid polymer binder (c-CMC-CA). Due to the additional protection from the silica layer, CVSS is superior to the carbon@void@silicon (CVS) electrode in terms of long-term cyclability. The as-prepared all-integrated CVSS electrode exhibits high mechanical strength, which can be ascribed to the high adhesivity and ductility of c-CMC-CA binder and the strong binding energy between CVSS and c-CMC-CA, as calculated based on density functional theory (DFT). This electrode exhibits a high reversible capacity of 1640 mA h g
Publisher: Elsevier BV
Date: 02-2019
Publisher: American Chemical Society (ACS)
Date: 24-09-2019
Abstract: Lithium metal anodes (LMAs) are critical for high-energy-density batteries such as Li-S and Li-O
Publisher: American Chemical Society (ACS)
Date: 08-03-2017
Abstract: Zinc germinate (Zn
Publisher: Wiley
Date: 03-07-2021
Abstract: The cycle life of aqueous zinc‐ion batteries (ZIBs) is limited by the notable challenges of cathode dissolution, water reactivity, and zinc dendrites. Here, it is demonstrated that by tuning the electrolyte solvation structure, the issues for both the electrodes and the electrolyte can be addressed simultaneously. Specifically, a fire‐retardant triethyl phosphate (TEP) is demonstrated as a cosolvent with strong solvating ability in a nonaqueous/aqueous hybrid electrolyte. The TEP features a higher donor number (26 kcal mol −1 ) than H 2 O (18 kcal mol −1 ), preferring to form a TEP occupied inner solvation sheath around Zn 2+ and strong hydrogen bonding with H 2 O. The TEP coordinated electrolyte structure can inhibit the reactivity of H 2 O with V 2 O 5 and leads to a robust polymeric‐inorganic interphase (poly‐ZnP 2 O 6 and ZnF 2 ) on zinc anode effectively preventing the dendrite growth and parasitic water reaction. With such an optimized electrolyte, the Zn/Cu cells perform high average Coulombic efficiency of 99.5%, and the full cell with a low capacity ratio of Zn:V 2 O 5 (2:1) and lean electrolyte (11.5 g Ah −1 ) delivers a reversible capacity of 250 mAh g −1 for over 1000 cycles at 5 A g −1 . This study highlights the promise of a successful electrolyte regulation strategy for the development of high‐performance and practical ZIBs.
Publisher: Wiley
Date: 03-08-2023
Abstract: Tremendous progress has been made in the field of electrochemical energy storage devices that rely on potassium‐ions as charge carriers due to their abundant resources and excellent ion transport properties. Nevertheless, future practical developments not only count on advanced electrode materials with superior electrochemical performance, but also on competitive costs of electrodes for scalable production. In the past few decades, advanced carbon materials have attracted great interest due to their low cost, high selectivity, and structural suitability and have been widely investigated as functional materials for potassium‐ion storage. This article provides an up‐to‐date overview of this rapidly developing field, focusing on recent advanced and mechanistic understanding of carbon‐based electrode materials for potassium‐ion batteries. In addition, we also discuss recent achievements of dual‐ion batteries and conversion‐type K−X (X=O 2 , CO 2 , S, Se, I 2 ) batteries towards potential practical applications as high‐voltage and high‐power devices, and summarize carbon‐based materials as the host for K‐metal protection and possible directions for the development of potassium energy‐related devices as well. Based on this, we bridge the gaps between various carbon‐based functional materials structure and the related potassium‐ion storage performance, especially provide guidance on carbon material design principles for next‐generation potassium‐ion storage devices.
Publisher: American Chemical Society (ACS)
Date: 05-10-2023
Publisher: American Chemical Society (ACS)
Date: 17-08-2017
Publisher: Elsevier BV
Date: 02-2010
Publisher: American Chemical Society (ACS)
Date: 11-2017
Abstract: We have fabricated self-assembled LiNi
Publisher: Wiley
Date: 28-06-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0JM04485G
Publisher: Elsevier BV
Date: 10-2005
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM01702G
Publisher: Elsevier BV
Date: 05-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1JM10220F
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1JM14290A
Publisher: Elsevier BV
Date: 02-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA02276B
Abstract: Sodium borohydride hydrazinates were synthesized via a facile solid–liquid reaction between NaBH 4 and hydrazine in THF solution.
Publisher: Wiley
Date: 04-03-2020
Publisher: Elsevier BV
Date: 05-2007
Publisher: Wiley
Date: 03-03-2021
Abstract: The quality of the solid electrolyte interphase (SEI) layer is the decisive factor for the electrochemical performance of Li‐metal‐based batteries. Due to the absence of effective bonding, a natural SEI layer may exfoliate from the Li anode during interfacial fluctuations. Here, a silane coupling agent is introduced to serve as an adhesion promoter to bridge these two dissimilar materials via both chemical bonding and physical intertwining effects. Its inorganic reactive groups can combine with the Li substrate by forming LiOSi bonds, while organic functional groups can take part in the formation of the SEI layer and thereby bond with SEI components. Li metal electrodes with silane coupling agent modification exhibit excellent electrochemical performance, even under extreme testing conditions. This modification layer with dense structure could also protect the Li metal from corrosion by air, evidenced by the comparable electrochemical activity of the modified Li metal electrodes even after being exposed in air for 2 h. This design provides a promising pathway for the development of Li metal electrodes that will be stable both in electrolyte and in air.
Publisher: Springer Science and Business Media LLC
Date: 13-09-2021
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 03-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4DT03615H
Abstract: A Fe/Fe 3 O 4 /N-carbon composite consisting of a porous carbon matrix containing a highly conductive N-doped graphene-like network and Fe/Fe 3 O 4 nanoparticles was prepared.
Publisher: Elsevier BV
Date: 05-2017
Publisher: Springer Science and Business Media LLC
Date: 27-04-2011
DOI: 10.1557/JMR.2011.72
Publisher: Elsevier BV
Date: 09-2018
Publisher: Springer Science and Business Media LLC
Date: 23-06-2010
Publisher: Wiley
Date: 11-09-2018
Abstract: Towards clean energy: ChemPlusChem presents its special issue on "Future Energy Technology", guest-edited by François Aguey-Zinsou, Zaiping Guo, Yun Hau Ng, and Da-wei Wang. They have complied a multidisciplinary look at the chemistry behind new concepts for clean energy of the future. This issue was born out of the 2018 Future Energy Conference (organized by UNSW, Australia) and features top contributions covering energy storage, materials science and water splitting.
Publisher: Elsevier BV
Date: 05-2011
Publisher: Wiley
Date: 07-12-2009
Abstract: Three-dimensional (3D) reticular SnO(2) thin films deposited on copper and stainless steel substrates were prepared by the electrostatic spray deposition (ESD) technique. The 3D reticular SnO(2) film exhibit a high reversible capacity near 300 mAh g(-1) up to the 50th cycle.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2EE03970B
Abstract: A viable anode of atomic Sb with a super-coordinated O 2 Sb 1 N 4 structure anchored on N-doped micropore carbon nanosheets (O–Sb–N SA@NC) is developed, demonstrating significantly enhanced performance in both half and full potassium-ion batteries.
Publisher: Wiley
Date: 02-03-2020
DOI: 10.1002/INF2.12101
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2TA00195K
Publisher: Elsevier BV
Date: 03-2009
Publisher: Wiley
Date: 16-12-2022
Abstract: Zinc metal battery (ZMB) is promising as the next generation of energy storage system, but challenges relating to dendrites and corrosion of the zinc anode are restricting its practical application. Here, to stabilize Zn anode, we report a controlled electrolytic method for a monolithic solid‐electrolyte interphase (SEI) via a high dipole moment solvent dimethyl methylphosphonate (DMMP). The DMMP‐based electrolytes can generate a homogeneous and robust phosphate SEI (Zn 3 (PO 4 ) 2 and ZnP 2 O 6 ). Benefiting from the protecting impact of this in situ monolithic SEI, the zinc electrode exhibits long‐term cycling of 4700 h and a high Coulombic efficiency 99.89 % in Zn|Zn and Zn|Cu cell, respectively. The full V 2 O 5 |Zn battery with DMMP‐H 2 O hybrid electrolyte exhibits a high capacity retention of 82.2 % following 4000 cycles under 5 A g −1 . The first success in constructing the monolithic phosphate SEI will open a new avenue in electrolyte design for highly reversible and stable Zn metal anodes.
Publisher: American Chemical Society (ACS)
Date: 21-05-2008
DOI: 10.1021/JP801835H
Abstract: Traditionally, chemical reaction between solids has been considered to typically occur on a geological time scale without the benefit of high temperature, due to diffusion block in the solids. However, recent advancements have revealed that many solvent-free reactions between molecular crystals can quickly occur at room or near-room temperature. These reactions have raised a novel scientific question as to how the reactive species can overcome the diffusion-controlled kinetic limitations under such moderate conditions. From time-resolved powder UV-vis reflection spectra and optical micrographs with the reaction between dimethylglyoxime and Ni(Ac) 2.4H 2O and the reaction between hexamethylenetetramine and CoCl 2.6H 2O as models, we found that the solvent-free reaction really occurs at an intermediate state between the solid state and the liquid state. Formation of the liquid phase provides a convenient approach to diffusion of reactive species, whereas formation of a solid product layer h ered the transfer of reactive species. Both factors led to a broad reactive rate band in the long reaction region. The results have explained the diffusion mechanism of the fast reaction between the molecular crystals under moderate conditions.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA10842J
Abstract: A MnO 2 /RGO/Ni(OH) 2 composite film with a unique nanoarchitecture was designed and synthesized in situ on nickel foam using a facile one-pot hydrothermal approach, and exhibited superior capacitive performance.
Publisher: Elsevier BV
Date: 12-2007
Publisher: Elsevier BV
Date: 03-2018
Publisher: Elsevier BV
Date: 03-2013
Publisher: American Chemical Society (ACS)
Date: 18-03-2010
DOI: 10.1021/JP910547S
Publisher: Elsevier BV
Date: 11-2013
Publisher: Elsevier BV
Date: 06-2006
Publisher: The Electrochemical Society
Date: 2008
DOI: 10.1149/1.2826278
Publisher: American Chemical Society (ACS)
Date: 11-10-2011
DOI: 10.1021/JP2026237
Publisher: Wiley
Date: 21-03-2021
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 12-02-2004
Publisher: Elsevier BV
Date: 2003
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2EE00162D
Abstract: Recent progress in battery recycling is critically reviewed, including closed-loop design of new batteries and recycling-oriented design of battery configurations and components, together with an appraisal of predicted future research.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA01107C
Abstract: A CoSe–C@C core–shell structure is designed as a novel potential anode for PIBs. The introduction of KFSI salt is found to contribute to the formation of an inorganic-compound-rich SEI layer, benefiting the K ion diffusion and charge transfer dynamics.
Publisher: Elsevier BV
Date: 02-2020
Publisher: Wiley
Date: 05-06-2020
Publisher: Wiley
Date: 20-03-2006
Publisher: Wiley
Date: 23-07-2014
Publisher: Springer Science and Business Media LLC
Date: 10-09-2019
Publisher: Elsevier BV
Date: 04-2007
Publisher: American Chemical Society (ACS)
Date: 27-06-2018
Abstract: Highly efficient and low-cost nonprecious metal electrocatalysts that favor a four-electron pathway for the oxygen reduction reaction (ORR) are essential for high-performance metal-air batteries. Herein, we show an ultrasonication-assisted synthesis method to prepare Mn
Publisher: Wiley
Date: 19-03-2022
Abstract: The decay of lithium–sulfur (Li–S) batteries is mainly due to the shuttle effect caused by intermediate polysulfides (LiPSs). Herein, a multiple confined cathode architecture is prepared by filling graphitized Pinus sylvestris with carbon nanotubes and defective LaNiO 3− x (LNO‐V) nanoparticles. The composite electrode with high areal sulfur loading of 11.6 mg cm −2 shows a high areal specific capacity of 8.5 mAh cm −2 at 1 mA cm −2 (0.05 C). Both experimental results and theoretical calculations reveal that this unique structure not only provides physical restriction on LiPSs within microchannels but also offers strong chemical immobilization and catalytic conversion of LiPSs attributed to the spin density around oxygen vacancies of LaNiO 3− x . These oxygen vacancies elongate the SS and LiS bonds and make them easy to break. Furthermore, the lengthwise channels derived from cytoderm restrict the transverse diffusion of polysulfides, leading to a uniform areal current and thus homogeneous lithium infiltration. This suppresses the corrosion of the lithium anode due to polysulfides confinement. The discovery of the multiple confined structure that provides chemical adsorption, fast diffusion, and catalytic conversion for polysulfides can broaden the application of biomass materials and offer a new strategy to achieve robust Li–S batteries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA06233G
Abstract: A “pseudocomposite” with unique nano-architecture of two Ni(OH) 2 /RGO layer was in situ synthesized on nickel foam (NF) using a facile onepot hydrothermal approach, which exhibits superior capacitive performance (15.65 F cm −2 at 7 mA cm −2 , 90.6% capacity retention after 5000 cycles at 20 mA cm −2 ).
Publisher: American Chemical Society (ACS)
Date: 14-02-2014
DOI: 10.1021/JP411687N
Publisher: Wiley
Date: 09-09-2021
Abstract: Potassium‐based solid electrolyte interphases (SEIs) have a much smaller damage threshold than their lithium counterpart thus, they are significantly more beam sensitive. Here, an ultralow‐dose cryogenic transmission electron microscopy (cryo‐TEM) technique (≈8 e Å −2 s −1 × 10 s), which enables the atomic‐scale chemical imaging of the electron‐beam‐sensitive potassium metal and SEI in its native state, is adapted. The potassium‐based SEI consists of large brackets of erse inorganic phases (≈hundreds of nanometers) interspersed with amorphous phases, which are different from the tiny nanocrystalline inorganic phases (≈a few nanometers) formed in a lithium‐based SEI. Organic phosphate‐based electrolyte solvents induce the formation of a thin and stable SEI layer for enhanced cycling performance, while the carbonate ester‐based electrolytes result in large quantities of metastable KHCO 3 , and K 4 CO 4 products in the SEI, depleting the potassium reserves in the battery. The findings provide deep insights and guidance in the selection of optimum electrolytes that should be used for potassium batteries.
Publisher: Elsevier BV
Date: 03-2009
Publisher: Elsevier BV
Date: 06-2003
Publisher: Springer Science and Business Media LLC
Date: 02-02-2021
Publisher: Springer Science and Business Media LLC
Date: 02-11-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TA10500B
Abstract: Two-dimensional (2D) nanostructures including 2D materials and composites containing 2D supports and active materials as sodium-ion battery anodes are reviewed.
Publisher: Elsevier BV
Date: 02-2022
Publisher: Elsevier BV
Date: 11-2011
Publisher: American Chemical Society (ACS)
Date: 10-06-2010
DOI: 10.1021/JP1012208
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11751K
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA45414B
Publisher: Elsevier BV
Date: 09-2019
Publisher: Springer Science and Business Media LLC
Date: 06-09-2018
Publisher: Elsevier BV
Date: 02-2013
Publisher: Elsevier BV
Date: 07-2009
Publisher: Springer Science and Business Media LLC
Date: 22-10-2019
Publisher: Elsevier BV
Date: 11-2006
Publisher: American Chemical Society (ACS)
Date: 04-02-2020
Publisher: Springer Science and Business Media LLC
Date: 04-2015
Publisher: Wiley
Date: 29-01-2020
Publisher: Elsevier BV
Date: 07-2006
Publisher: Wiley
Date: 17-04-2023
Abstract: Aqueous Zn‐Iodine (I 2 ) batteries are attractive for large‐scale energy storage. However, drawbacks include, Zn dendrites, hydrogen evolution reaction (HER), corrosion and, cathode “shuttle” of polyiodines. Here we report a class of N‐containing heterocyclic compounds as organic pH buffers to obviate these. We evidence that addition of pyridine /imidazole regulates electrolyte pH, and inhibits HER and anode corrosion. In addition, pyridine and imidazole preferentially absorb on Zn metal, regulating non‐dendritic Zn plating /stripping, and achieving a high Coulombic efficiency of 99.6 % and long‐term cycling stability of 3200 h at 2 mA cm −2 , 2 mAh cm −2 . It is also confirmed that pyridine inhibits polyiodines shuttling and boosts conversion kinetics for I − /I 2 . As a result, the Zn‐I 2 full battery exhibits long cycle stability of 000 cycles and high specific capacity of 105.5 mAh g −1 at 10 A g −1 . We conclude organic pH buffer engineering is practical for dendrite‐free and shuttle‐free Zn‐I 2 batteries.
Publisher: Springer Science and Business Media LLC
Date: 22-07-2011
Publisher: Elsevier BV
Date: 04-2010
Publisher: Elsevier BV
Date: 10-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2009
DOI: 10.1039/B913993A
Publisher: Wiley
Date: 04-02-2016
Abstract: Constructing heterostructures can endow materials with fascinating performance in high-speed electronics, optoelectronics, and other applications owing to the built-in charge-transfer driving force, which is of benefit to the specific charge-transfer kinetics. Rational design and controllable synthesis of nano-heterostructure anode materials with high-rate performance, however, still remains a great challenge. Herein, ultrafine SnS/SnO2 heterostructures were successfully fabricated and showed enhanced charge-transfer capability. The mobility enhancement is attributed to the interface effect of heterostructures, which induces an electric field within the nanocrystals, giving them much lower ion-diffusion resistance and facilitating interfacial electron transport.
Publisher: Elsevier BV
Date: 04-2019
Publisher: Springer Science and Business Media LLC
Date: 23-05-2010
Publisher: Elsevier BV
Date: 12-2006
Publisher: Elsevier BV
Date: 10-2014
Publisher: Wiley
Date: 21-02-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7RA02259J
Abstract: A crystalline–amorphous core–shell ZnO/Zn 2 GeO 4 /graphene aerogel with a three-dimensional structure has been successfully fabricated and shows enhanced stability and electrochemical performances.
Publisher: BMJ
Date: 02-2020
DOI: 10.1136/BMJOPEN-2019-031804
Abstract: To assess the health burden of breast hypertrophy and the comparative effectiveness of breast reduction surgery in improving health-related quality of life. Prospective cohort study. A major public tertiary care hospital in Australia. Women with symptomatic breast hypertrophy who underwent breast reduction surgery were followed for 12 months. A comparison control cohort comprised women with breast hypertrophy who did not undergo surgery. Bilateral breast reduction surgery for women in the surgical cohort. The primary outcome measure was health-related quality of life measured preoperatively and at 3, 6 and 12 months postoperatively using the Short Form-36 (SF-36) questionnaire. Secondary outcome measures included post-surgical complications. 209 patients in the surgical cohort completed questionnaires before and after surgery. 124 patients in the control hypertrophy cohort completed baseline and 12-month follow-up questionnaires. At baseline, both groups had significantly lower scores compared with population norms across all scales (p .001). In the surgical cohort significant improvements were seen across all eight SF-36 scales (p .001) following surgery. Within 3 months of surgery scores were equivalent to those of the normal population and this improvement was sustained at 12 months. SF-36 physical and mental component scores both significantly improved following surgery, with a mean change of 10.2 and 9.2 points, respectively (p .001). In contrast, SF-36 scores for breast hypertrophy controls remained at baseline across 12 months. The improvement in quality of life was independent of breast resection weight and body mass index. Breast reduction significantly improved quality of life in women with breast hypertrophy. This increase was most pronounced within 3 months of surgery and sustained at 12-month follow-up. This improvement in quality of life is comparable to other widely accepted surgical procedures. Furthermore, women benefit from surgery regardless of factors including body mass index and resection weight.
Publisher: Elsevier BV
Date: 09-2013
Publisher: Springer Science and Business Media LLC
Date: 12-2011
Publisher: Wiley
Date: 23-08-2012
Publisher: Elsevier BV
Date: 02-2014
Publisher: Wiley
Date: 26-04-2016
Abstract: Ammonium aminodiboranate ([NH4 ][BH3 NH2 BH3 ]) is a long-sought isomer of diammoniate of diborane ([NH3 BH2 NH3 ][BH4 ]) and ammonia borane (NH3 BH3 ) dimer. Our results show that [NH4 ][BH3 NH2 BH3 ] is stable in tetrahydrofuran at -18 °C and decomposes rapidly to NH3 BH2 NH2 BH3 and H2 at elevated temperatures. The decomposition pathway is dictated by the dihydrogen bonding between H(δ+) on NH4 (+) and H(δ-) on BH3 , as confirmed by theoretical calculations. This is in contrast to the interconversion between [NH3 BH2 NH3 ][BH4 ] and (NH3 BH3 )2 , although all three have dihydrogen bonds and the same stoichiometry.
Publisher: Wiley
Date: 22-02-2022
Abstract: Zinc‐ion batteries (ZIBs) feature high safety, low cost, environmental‐friendliness, and promising electrochemical performance, and are therefore regarded as a potential technology to be applied in large‐scale energy storage devices. However, ZIBs still face some critical challenges and bottlenecks. The electrolyte is an essential component of batteries and its properties affect the mass transport, energy storage mechanisms, reaction kinetics, and side reactions of ZIBs. The adjustment of electrolyte formulas usually has direct and obvious impacts on the overall output and performance. In this review, advanced electrolyte strategies are overviewed for optimizing the compatibility between cathode materials and electrolytes, inhibiting anode corrosion and dendrite growth, extending electrochemical stability windows, enabling wearable applications, and enhancing temperature tolerance. The underlying scientific mechanisms, electrolyte design principles, and recent progress are presented to provide a better understanding and inspiration to readers. In addition, a comprehensive perspective about electrolyte design and engineering for ZIBs is included.
Publisher: Springer Science and Business Media LLC
Date: 21-08-2013
DOI: 10.1038/SREP02485
Publisher: American Chemical Society (ACS)
Date: 22-11-2013
DOI: 10.1021/AM4033444
Abstract: Hierarchical networks with highly interconnected V2O5 nanosheets (NSs) anchored on skeletons of carbon nanotubes (CNTs) are prepared by a facile hydrothermal treatment and a following calcination for the first time. Benefiting from these unique structural features, the as-prepared CNT@V2O5 material shows dramatically excellent electrochemical performance with remarkable long cyclability (137-116 mA h g(-1) after 400 cycles) at various high rates (20 C to 30 C) and very good rate capability for highly reversible lithium storage. The excellent electrochemical performance suggests its promising use as a cathode material for future lithium-ion batteries.
Publisher: Elsevier BV
Date: 12-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2EE02453E
Abstract: Weak Al 3+ –solvent interactions and facile desolvation for ultralong stability of Zn–Al alloy anodes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA05540G
Abstract: AB@PPy composites synthesized by a solution method show favorable dehydrogenation properties.
Publisher: The Electrochemical Society
Date: 2005
DOI: 10.1149/1.2051847
Publisher: Elsevier BV
Date: 05-2006
Publisher: Wiley
Date: 24-04-2017
Abstract: Ultrathin 2D materials can offer promising opportunities for exploring advanced energy storage systems, with satisfactory electrochemical performance. Engineering atomic interfaces by stacking 2D crystals holds huge potential for tuning material properties at the atomic level, owing to the strong layer-layer interactions, enabling unprecedented physical properties. In this work, atomically thin Bi
Publisher: American Scientific Publishers
Date: 2006
DOI: 10.1166/JNN.2006.103
Abstract: In lithium-ion batteries, nanocrystalline intermetallic alloys, nanosized composite materials, carbon nanotubes, and nanosized transition-metal oxides are all promising new anode materials, while nanosized LiCoO 2 , LiFePO 4 , LiMn 2 O 4 , and LiMn 2 O 4 show higher capacity and better cycle life as cathode materials than their usual larger-particle equivalents. The addition of nanosized metal-oxide powders to polymer electrolyte improves the performance of the polymer electrolyte for all solid-state lithium rechargeable batteries. To meet the challenge of global warming, a new generation of lithium rechargeable batteries with excellent safety, reliability, and cycling life is needed, i.e., not only for applications in consumer electronics, but especially for clean energy storage and for use in hybrid electric vehicles and aerospace. Nanomaterials and nanotechnologies can lead to a new generation of lithium secondary batteries. The aim of this paper is to review the recent developments on nanomaterials and nanotechniques used for anode, cathode, and electrolyte materials, the impact of nanomaterials on the performance of lithium batteries, and the modes of action of the nanomaterials in lithium rechargeable batteries.
Publisher: Elsevier BV
Date: 10-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8EE01023D
Abstract: Recent research progresses on high performance anode materials for high-energy sodium-ion batteries are comprehensively summarized.
Publisher: Wiley
Date: 05-08-2016
Publisher: Elsevier BV
Date: 05-2011
Publisher: Wiley
Date: 28-07-2019
Publisher: American Association for the Advancement of Science (AAAS)
Date: 25-03-2022
Abstract: As one of the most competitive candidates for the next-generation energy storage systems, the emerging rechargeable zinc metal battery (ZMB) is inevitably influenced by beyond-room-temperature conditions, resulting in inferior performances. Although much attention has been paid to evaluating the performance of ZMBs under extreme temperatures in recent years, most academic electrolyte research has not provided adequate information about physical properties or practical testing protocols of their electrolytes, making it difficult to assess their true performance. The growing interest in ZMBs is calling for in-depth research on electrolyte behavior under harsh practical conditions, which has not been systematically reviewed yet. Hence, in this review, we first showcase the fundamentals behind the failure of ZMBs in terms of temperature influence and then present a comprehensive understanding of the current electrolyte strategies to improve battery performance at harsh temperatures. Last, we offer perspectives on the advance of ZMB electrolytes toward industrial application.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA06600A
Abstract: This research work reveals a fully desodiated phase, which might lead to higher voltage/capacity for sodium ion battery.
Publisher: Wiley
Date: 30-11-2015
Publisher: Wiley
Date: 20-01-2020
Publisher: Wiley
Date: 19-06-2023
Abstract: High energy and power density alkali‐ion (i.e., Li + , Na + , and K + ) batteries (AIBs), especially lithium‐ion batteries (LIBs), are being ubiquitously used for both large‐ and small‐scale energy storage, and powering electric vehicles and electronics. However, the increasing LIB‐triggered fires due to thermal runaways have continued to cause significant injuries and casualties as well as enormous economic losses. For this reason, to date, great efforts have been made to create reliable fire‐safe AIBs through advanced materials design, thermal management, and fire safety characterization. In this review, the recent progress is highlighted in the battery design for better thermal stability and electrochemical performance, and state‐of‐the‐art fire safety evaluation methods. The key challenges are also presented associated with the existing materials design, thermal management, and fire safety evaluation of AIBs. Future research opportunities are also proposed for the creation of next‐generation fire‐safe batteries to ensure their reliability in practical applications.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EE02162H
Abstract: The differences and similarities of the Zn electrode in both alkaline and mild electrolytes have been thoroughly clarified.
Publisher: Wiley
Date: 18-04-2023
Abstract: Growth in intermittent renewable sources including solar and wind has sparked increasing interest in electrical energy storage. Grid‐scale energy storage integrated with renewable sources has significant advantages in energy regulation and grid security. Aqueous zinc‐ion batteries (AZIBs) have emerged as a practically attractive option for electrical storage because of environmentally benign aqueous‐based electrolytes, high theoretical capacity of Zn anode, and significant global reserves of Zn. However, application of AZIBs at the grid‐scale is restricted by drawbacks in cathode material(s). Herein, a comprehensive summary of the features and storage mechanisms of the latest cathode materials is provided. The fundamental problems and corresponding in‐depth causes for cathode materials is critically reviewed. It is also assess practical challenges, appraise their translation to commerce and industry, and systematically summarize and discuss the potential solutions reported in recent works. It is established necessary design strategies for Zn anodes and electrolytes that are matched with cathode materials for commercializing AZIBs. Finally, it is concluded with a perspective on the practical prospects for advancing the development of future AZIBs. Findings will be of interest and benefit to a range of researchers and manufacturers in the design and application of AZIBs for grid‐scale energy storage.
Publisher: Elsevier BV
Date: 03-2013
Publisher: Springer Science and Business Media LLC
Date: 23-02-2010
Publisher: Elsevier BV
Date: 08-2018
Publisher: Wiley
Date: 09-10-2017
Publisher: Springer Science and Business Media LLC
Date: 15-07-2015
DOI: 10.1038/SREP11989
Abstract: Developing nano/micro-structures which can effectively upgrade the intriguing properties of electrode materials for energy storage devices is always a key research topic. Ultrathin nanosheets were proved to be one of the potential nanostructures due to their high specific surface area, good active contact areas and porous channels. Herein, we report a unique hierarchical micro-spherical morphology of well-stacked and completely miscible molybdenum disulfide (MoS 2 ) nanosheets and graphene sheets, were successfully synthesized via a simple and industrial scale spray-drying technique to take the advantages of both MoS 2 and graphene in terms of their high practical capacity values and high electronic conductivity, respectively. Computational studies were performed to understand the interfacial behaviour of MoS 2 and graphene, which proves high stability of the composite with high interfacial binding energy (−2.02 eV) among them. Further, the lithium and sodium storage properties have been tested and reveal excellent cyclic stability over 250 and 500 cycles, respectively, with the highest initial capacity values of 1300 mAh g −1 and 640 mAh g −1 at 0.1 A g −1 .
Publisher: American Chemical Society (ACS)
Date: 30-08-2017
Abstract: Two-dimensional ultrathin cobaltosic oxide nanosheets with numerous geometrical holes were synthesized by the hydrothermal method, and further used as an effective encapsulation matrix for sulfur and polysulfides in lithium-sulfur batteries. The cobaltosic oxide/sulfur nanosheet composite electrode exhibits high Coulombic efficiency (99%), a suppressed shuttle effect, and a reversible capacity of 656 mA h g
Publisher: Elsevier BV
Date: 09-2006
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA22989K
Publisher: American Chemical Society (ACS)
Date: 22-07-2019
Abstract: Solid materials with special atomic and electronic structures are deemed desirable platforms for establishing clear relationships between surface/interface structure characteristics and electrochemical activity. In this work, nickel boride (Ni
Publisher: American Chemical Society (ACS)
Date: 29-04-2022
Abstract: Polar host materials with strong adsorption capacity of polysulfides are designed to limit the shuttle effect in sulfur cathodes. However, a critical problem is to control diffusion and deposition of lithium polysulfides during cycling, which significantly impacts cycling stability and sulfur utilization. Here, we report using a sequential adsorption-guided self-assembly to design two types of core-shell sulfur particles with opposite polysulfide adsorption gradients to explore quantitatively the regulation of polysulfide diffusion and deposition. We show that a positive core-shell design of sulfur particles (PCSD@SP), i.e., polysulfide adsorption capability decreasing from the interior to the exterior of the host, is more effective in restricting polysulfide diffusion and regulating polysulfide deposition than the negative core-shell counterpart (NCSD@SP). As a result, the PCSD@SP electrode with a sulfur loading of 7 mg cm
Publisher: American Chemical Society (ACS)
Date: 16-07-2009
DOI: 10.1021/JP902560Q
Publisher: Wiley
Date: 12-10-2016
Publisher: Wiley
Date: 06-07-2015
Publisher: Elsevier BV
Date: 08-2005
Publisher: Elsevier BV
Date: 2017
Publisher: Elsevier BV
Date: 11-2021
Publisher: Wiley
Date: 24-04-2020
Publisher: Wiley
Date: 09-2019
DOI: 10.1002/CEY2.2
Abstract: Increasing the energy density of conventional lithium‐ion batteries (LIBs) is important for satisfying the demands of electric vehicles and advanced electronics. Silicon is considered as one of the most‐promising anodes to replace the traditional graphite anode for the realization of high‐energy LIBs due to its extremely high theoretical capacity, although its severe volume changes during lithiation/delithiation have led to a big challenge for practical application. In contrast, the co‐utilization of Si and graphite has been well recognized as one of the preferred strategies for commercialization in the near future. In this review, we focus on different carbonaceous additives, such as carbon nanotubes, reduced graphene oxide, and pyrolyzed carbon derived from precursors such as pitch, sugars, heteroatom polymers, and so forth, which play an important role in constructing micrometer‐sized hierarchical structures of silicon/graphite/carbon (Si/G/C) composites and tailoring the morphology and surface with good structural stability, good adhesion, high electrical conductivity, high tap density, and good interface chemistry to achieve high capacity and long cycling stability simultaneously. We first discuss the importance and challenge of the co‐utilization of Si and graphite. Then, we carefully review and compare the improved effects of various types of carbonaceous materials and their associated structures on the electrochemical performance of Si/G/C composites. We also review the erse synthesis techniques and treatment methods, which are also significant factors for optimizing Si/G/C composites. Finally, we provide a pertinent evaluation of these forms of carbon according to their suitability for commercialization. We also make far‐ranging suggestions with regard to the selection of proper carbonaceous materials and the design of Si/G/C composites for further development.
Publisher: Elsevier BV
Date: 08-2005
Publisher: Wiley
Date: 14-05-2020
Publisher: Wiley
Date: 14-09-2020
DOI: 10.1002/EOM2.12048
Publisher: Springer Science and Business Media LLC
Date: 07-10-2022
Publisher: American Scientific Publishers
Date: 03-2006
DOI: 10.1166/JNN.2006.083
Abstract: Single-walled carbon nanotube (SWNT) papers were successfully prepared by dispersing SWNTs in Triton X-100 solution, then filtered by PVDF membrane (0.22 μ m pore size). The electrochemical behavior and the reversible hydrogen storage capacity of single-walled carbon nanotube (SWNT) papers have been investigated in alkaline electrolytic solutions (6 N KOH) by cyclic voltammetry, linear micropolarization, and constant current charge/discharge measurements. The effect of thickness and the addition of carbon black on hydrogen adsorption/desorption were also investigated. It was found that the electrochemical charge–discharge mechanism occurring in SWNT paper electrodes is somewhere between that of carbon nanotubes (physical process) and that of metal hydride electrodes (chemical process), and consists of a charge-transfer reaction (Reduction/Oxidation) and a diffusion step (Diffusion).
Publisher: Elsevier BV
Date: 03-2014
Publisher: Elsevier BV
Date: 12-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EE00953A
Abstract: Cation-disordered Zn(Cu)–Si–P family materials demonstrate better Li-storage performance than the cation-ordered ZnSiP 2 phase due largely to faster electronic and ionic conductivity and better tolerance to volume change during cycling, as confirmed by DFT calculations and experimental measurements.
Publisher: Wiley
Date: 25-10-2021
Abstract: The plating/stripping of Li dendrites can fracture the static solid electrolyte interphase (SEI) and cause significant dynamic volume variations in the Li anode, which give rise to poor cyclability and severe safety hazards. Herein, a tough polymer with a slide‐ring structure was designed as a self‐adaptive interfacial layer for Li anodes. The slide‐ring polymer with a dynamically crosslinked network moves freely while maintaining its toughness and fracture resistance, which allows it can to dissipate the tension induced by Li dendrites on the interphase layer. Moreover, the slide‐ring polymer is highly stretchable, elastic, and displays an ultrafast self‐healing ability, which allows even pulverized Li to remain coalesced without disintegrating upon consecutive cycling. The Li anodes demonstrate greatly improved suppression of Li dendrite formation, as evidenced by the high critical current density (6 mA cm −2 ) and stable cycling for the full cells with high‐areal capacity LiFePO 4 , high‐voltage NCM, and S cathodes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA06917H
Abstract: Facilely prepared Cu x S@NiCo-LDH core–shell nanoarray electrocatalysts exhibit superior bifunctionality towards electrochemical HMF oxidation and H 2 production.
Publisher: American Chemical Society (ACS)
Date: 11-09-2019
Abstract: As an important class of multielectron reaction materials, the applications of transition-metal oxides (TMOs) are impeded by volume expansion and poor electrochemical activity. To address these intrinsic limitations, the renewal of TMOs inspires research on incorporating an advanced interface layer with multiple anionic characteristics, which may add functionality to support properties inaccessible to a single-anion TMO electrode. Herein, a transition-metal oxycarbide (TMOC, M = Mo) with more than one anionic species was prepared as an interface layer on a corresponding oxide. A multiple anionic TMOC possesses advantages of structural stability, abundant active sites, and elevated metal cation valence states. Such merits mitigate volume changes and enhance multielectron reactions significantly. The TMOC nanocomposite has a well-maintained capacity after 1000 cycles at 2 A·g
Publisher: Elsevier BV
Date: 10-2005
Publisher: American Chemical Society (ACS)
Date: 22-02-2017
DOI: 10.1021/JACS.6B12185
Abstract: Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 08-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3EE01724A
Abstract: The Co(TAPC) additive can be preferentially adsorbed on the Zn anode surface to create a dense zincophilic molecular layer. The layer could promote the desolvation of Zn 2+ and redistribute the Zn 2+ flux, resulting in smooth and stable Zn deposition.
Publisher: Elsevier BV
Date: 05-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1RA00258A
Publisher: Elsevier BV
Date: 06-2009
Publisher: Elsevier BV
Date: 08-2010
Publisher: Wiley
Date: 12-04-2019
Abstract: Lithium-oxygen batteries have an ultrahigh theoretical energy density, almost ten times higher than lithium-ion batteries. The poor conductivity of the discharge product Li
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0DT01727B
Abstract: Successful synthesis and investigation of a new material that uses copper-metal-organic frameworks (Cu-MOFs) as the template for loading LiBH(4) are reported. The nanoconfinement of LiBH(4) in the pores of Cu-MOFs results in an interaction between LiBH(4) and Cu(2+) ions, enabling the LiBH(4)@Cu-MOFs system to achieve a much lower dehydrogenation temperature than pristine LiBH(4).
Publisher: Elsevier BV
Date: 09-2009
Publisher: The Electrochemical Society
Date: 2002
DOI: 10.1149/1.1477206
Publisher: Elsevier BV
Date: 08-2011
Publisher: American Chemical Society (ACS)
Date: 05-2017
Abstract: An effective route based on space-confined chemical reaction to synthesize uniform Li
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 2015
Publisher: American Scientific Publishers
Date: 11-2011
Publisher: Elsevier BV
Date: 02-2007
Publisher: Elsevier BV
Date: 09-2008
Publisher: Elsevier BV
Date: 07-2012
Publisher: Wiley
Date: 09-2022
Abstract: Potassium‐ion batteries hold practical potential for large‐scale energy storage owing to their appealing cell voltage and cost‐effective features. The development of anode materials with high rate capability and satisfactory cycle lifespan, however, is one of the key elements for exploiting this electrochemical energy storage system at practical levels. Here, a template‐assisted strategy is reported for acquiring a bimetallic telluride heterostructure which is supported on N‐doped carbon shell (ZnTe/CoTe 2 @NC) that promotes diffusion of K + ions for rapid charge transfer. It is shown that in telluride heterojunctions, electron‐rich Te sites and built‐in electric fields contributed by electron transfer from ZnTe to CoTe 2 concomitantly provide abundant cation adsorption sites and facilitate interfacial electron transport during potassiation/depotassiation. The relatively fine ZnTe/CoTe 2 nanoparticles imparted by the heterojunction result in high structural stability, together with a highly reversible capacity up to 5000 cycles at 5 A g −1 . Moreover, using judiciously combined experiment and theoretical computation, it is demonstrated that the energy barrier for K + diffusion in telluride heterojunctions is significantly lower than that in in idual counterparts. This quantitative design for fast and durable charge transfer in telluride heterostructures can be of immediate benefit for the rational design of batteries for low‐cost energy storage and conversion.
Publisher: MDPI AG
Date: 11-09-2015
Publisher: Springer Science and Business Media LLC
Date: 22-12-2012
Publisher: Elsevier BV
Date: 06-2022
Publisher: Wiley
Date: 17-09-2019
Abstract: The feasibility of transition metal carbides (TMCs) as promising high-rate electrodes is still hindered by low specific capacity and sluggish charge transfer kinetics. Improving charge transport kinetics motivates research toward directions that would rely on heterostructures. In particular, heterocomposing with carbon-rich TMCs is highly promising for enhancing Li storage. However, due to limited synthesis methods to prepare carbon-rich TMCs, understanding the interfacial interaction effect on the high-rate performance of TMCs is often neglected. In this work, a novel strategy is proposed to construct a binary carbide heteroelectrode, i.e. incorporating the carbon-rich TMC (M=Mo) with its metal-rich TMC nanowires (nws) via an ingenious in situ disproportionation reaction. Results show that the as-prepared MoC-Mo
Publisher: Springer Science and Business Media LLC
Date: 29-01-2013
Publisher: Elsevier BV
Date: 09-2005
Publisher: Wiley
Date: 05-09-2022
Abstract: In traditional non‐flammable electrolytes a trade‐off always exists between non‐flammability and battery performance. Previous research focused on reducing free solvents and forming anion‐derived solid‐electrolyte interphase. However, the contribution of solvated anions in boosting the stability of electrolyte has been overlooked. Here, we resolve this via introducing anions into Li + solvation sheaths using anions with similar Gutmann donor number (DN) to that of solvents. Taking trimethyl phosphate fire‐retardant (DN=23.0 kcal mol −1 ) and NO 3 − (DN=22.2 kcal mol −1 ) as an ex le, NO 3 − is readily involved in the Li + solvation sheath and reduces the polarity of solvent. This results in boosted stability of electrolyte against Li. The developed non‐flammable electrolyte has low viscosity, high ionic conductivity and is low cost. The reversibility of Li‐Cu cell was improved to 99.49 % and the lifespan of practical LMBs was extended by %.
Publisher: American Chemical Society (ACS)
Date: 31-07-2018
Abstract: Metal hydrides have attracted great intentions as anodes for lithium-ion batteries (LIBs) due to their extraordinary theoretical capacity. It is an unsolved challenge, however, to achieve high capacity with stable cyclability, owing to their insulating property and large volume expansion upon lithium storage. Here, we introduce self-initiated polymerization to realize molecular-scale functionality of metal hydrides with conductive polymer, that is, polythiophene (PTh), on graphene, leading to the formation of MgH
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0CE00821D
Publisher: Springer Science and Business Media LLC
Date: 22-06-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA03162E
Abstract: Li 4−x/2 Ti 5−x/2 Eu x O 12 @C ( x = 0.004) was prepared via the co-precipitation method. When cycled at 100 C, the discharge capacity stayed at 92.1 mA h g −1 .
Publisher: American Chemical Society (ACS)
Date: 10-05-2021
Publisher: Wiley
Date: 27-10-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA02927B
Abstract: Hematite quantum dots anchored on a 3D ultraporous graphene-like framework as anode materials showed superior electrochemical performance for asymmetric supercapacitors.
Publisher: Elsevier BV
Date: 04-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA04271A
Abstract: Potential use of Li 1+x (Mn 1/3 Ni 1/3 Fe 1/3 )O 2 hierarchical nanofibers as a cathode material in both lithium-ion and sodium-ion batteries.
Publisher: Elsevier BV
Date: 08-2016
Publisher: Wiley
Date: 28-03-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1JM10537J
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA01631A
Abstract: Three newly synthesized alkyl-substituted amine-boranes show a favorable dehydrogenation rate with pure hydrogen release.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA01431D
Abstract: An amorphous ZnP 2 /C composite with P–C bonds achieves ultralong cycling stability and high rate performance.
Publisher: Elsevier BV
Date: 09-2005
Publisher: Oxford University Press (OUP)
Date: 13-03-2021
DOI: 10.1093/NSR/NWAB043
Publisher: Elsevier BV
Date: 06-2009
Publisher: Wiley
Date: 10-2022
Publisher: Elsevier BV
Date: 03-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM01341B
Publisher: Elsevier BV
Date: 12-2007
Publisher: Wiley
Date: 30-05-2021
Abstract: The design and manufacture of advanced materials based on biomaterials provide new opportunities to solve many technological challenges. In this work, a highly graphitized wood framework (GWF) with a porous tunnel structure and microvilli is constructed as a multifunctional interlayer to improve the electrochemical performance of lithium–sulfur (Li–S) batteries. The GWF not only retains the 3D transport network of wood, but also offers increased deposition sites for polysulfides through the microvilli which grow on the inner surfaces of the carbon tunnels. Electrochemical tests show that GWF effectively enhances the initial discharge capacity of the Li–S battery to 1593 mAh g −1 at 0.05 C, with a low capacity decline of 0.06% per cycle at 1 C. Besides, the GWF interlayer also effectively protects lithium anodes from corrosion by S x 2− , thus they still keep their metallic luster and clean surface even after long charge‐discharge cycles. These enhancements are attributed to the high conductivity, abundant microvilli, and tunnel confinement effects of GWF, which effectively inhibit the shuttle effect of polysulfides by the same principle as nose hairs filtering the air. This work presents a new understanding of bionic/biomaterials and a new strategy to improve the performance of Li–S batteries.
Publisher: Elsevier BV
Date: 09-2017
Publisher: Wiley
Date: 31-01-2013
DOI: 10.1111/JACE.12161
Publisher: Wiley
Date: 22-05-2019
Publisher: Wiley
Date: 21-04-2021
Abstract: Taking advantage of a high‐flux light source, synchrotron X‐ray absorption spectroscopy (XAS) beamline is able to perform in situ/ex situ , element‐selective, and qualitative/quantitative experiments to elucidate electrochemical reaction mechanisms of batteries accurately and efficiently. In situ synchrotron XAS probes dynamic electronic and local atomic structure information, including valence state, charge transfer, local geometry and symmetry, bond number/length/type and disorder degree, of target elements of significance during battery operation, which facilitates to promote the development of rechargeable batteries by building accurate structure‐performance relationships fundamentally. In this review, the basic principles for XAS are briefly introduced, design strategies for in situ XAS experiments are proposed, salient in situ XAS studies of battery anodes are summarized, and current challenges and future opportunities based on XAS measurements are also outlined.
Publisher: The Electrochemical Society
Date: 17-11-2014
Abstract: WO 3 /C nanorods were prepared by a combination of hydrothermal synthesis method and the solid phase reaction method, using (NH 4 ) 10 H 2 (W 2 O 7 ) 6 , H 2 C 2 O 4 ·2H 2 O and glucose(carbon source) as raw materials. The effects of different proportions of glucose on the morphologies and electrochemical properties of the final products were systematically investigated. The results showed that the WO 3 /C nanorods prepared with the 10 wt.% glucose as carbon source exhibited the highest reversible specific capacity (807 mAh g −1 ) at current density of 50 mA g −1 and the best cycle performances among all s les. Besides, it behaved good rate performance. It indicated that WO 3 /C nanorods could be promising electrode materials for lithium ion battery application.
Publisher: American Chemical Society (ACS)
Date: 24-06-2019
Abstract: Due to the abundant potassium resource on the Earth's crust, researchers now have become interested in exploring high-performance potassium-ion batteries (KIBs). However, the large size of K
Publisher: Elsevier BV
Date: 04-2011
Publisher: Elsevier BV
Date: 09-2011
Publisher: Springer Science and Business Media LLC
Date: 12-2015
DOI: 10.1038/SREP17473
Abstract: Carbon nanotubes (CNTs)/MnO x -Carbon hybrid nanofibers have been successfully synthesized by the combination of a liquid chemical redox reaction (LCRR) and a subsequent carbonization heat treatment. The nanostructures exhibit a unique one-dimensional core/shell architecture, with one-dimensional CNTs encapsulated inside and a MnO x -carbon composite nanoparticle layer on the outside. The particular porous characteristics with many meso/micro holes ores, the highly conductive one-dimensional CNT core, as well as the encapsulating carbon matrix on the outside of the MnO x nanoparticles, lead to excellent electrochemical performance of the electrode. The CNTs/MnO x -Carbon hybrid nanofibers exhibit a high initial reversible capacity of 762.9 mAhg −1 , a high reversible specific capacity of 560.5 mAhg −1 after 100 cycles and excellent cycling stability and rate capability, with specific capacity of 396.2 mAhg −1 when cycled at the current density of 1000 mAg −1 , indicating that the CNTs/MnO x -Carbon hybrid nanofibers are a promising anode candidate for Li-ion batteries.
Publisher: Wiley
Date: 11-10-2020
Publisher: Wiley
Date: 15-06-2023
Abstract: Lithium metal battery promises an attractively high energy density. A high Li‐utilization rate of Li metal anode is the prerequisite for the high energy density and avoiding a huge waste of the Li resource. However, the dendritic Li deposition gives rise to “dead Li” and parasitic interfacial reactions, resulting in a low Li utilization rate. Herein, Li deposition is regulated to spherical Li by designing an MXene host with an egg‐box structure, suitable curvature, and continuous gradient lithiophilic structure. Because the spherical Li greatly reduces the interfacial side reactions and avoids the formation of dead Li, the Li anode affords a high plating/stripping efficiency. Furthermore, the gradient lithiophilic design results in a bottom‐up growth of the spherical Li within the host, safely away from the separator. Thus, the spherical Li anode realizes a long life of h with a high Li‐utilization rate of %, stable cycling in full cells at an areal capacity up to 5 mAh cm −2 with a low negative ositive ratio of 0.8, which is critical for high energy density. Such spherical deposition highlights the critical role of the morphological control of alkali metals and provides a viable method to build practical high‐energy metal batteries.
Publisher: Wiley
Date: 16-12-2023
Abstract: Constructing hierarchical structures with heterointerfaces is an effective approach for developing high‐efficiency energy‐storage anodes for sodium‐ion batteries. In this study, MoS 2 @ZnIn 2 S 4 nanorods are designed and fabricated for structural improvement. Theoretical calculations reveal that there are two different MoS 2 ‐ZnIn 2 S 4 heterointerfaces formed by MoS 2 with the Zn and In facets of ZnIn 2 S 4 , which generate directional built‐in electric fields that provide additional driving forces for facilitating electron transfer. These two heterojunction interfaces, especially the MoS 2 ‐In facet, exhibit enhanced Na + adsorption energies and reduce Na + diffusion energy barriers. The multistep reactions of MoS 2 and ZnIn 2 S 4 reveal a synergistic effect that promotes the entire electrochemical process. Furthermore, the synthesized hierarchical nanorods composed of nanosheets offer abundant Na + ‐storage sites and multidirectional migration pathways and, importantly, accommodate the excessive volume change. Benefiting from the heterointerfaces and hierarchical structure, the composite electrode exhibits excellent electrochemical performance, with high reaction activity and rapid electron/ion diffusion kinetics.
Publisher: Elsevier BV
Date: 10-2011
Publisher: Elsevier BV
Date: 08-2007
Publisher: Wiley
Date: 25-09-2023
Publisher: Elsevier BV
Date: 08-2009
Publisher: The Electrochemical Society
Date: 2008
DOI: 10.1149/1.2861226
Publisher: Elsevier BV
Date: 02-06-2002
Publisher: Wiley
Date: 29-07-2015
Abstract: The ability to directly track the charge carrier in a battery as it inserts/extracts from an electrode during charge/discharge provides unparalleled insight for researchers into the working mechanism of the device. This crystallographic-electrochemical information can be used to design new materials or modify electrochemical conditions to improve battery performance characteristics, such as lifetime. Critical to collecting operando data used to obtain such information in situ while a battery functions are X-ray and neutron diffractometers with sufficient spatial and temporal resolution to capture complex and subtle structural changes. The number of operando battery experiments has dramatically increased in recent years, particularly those involving neutron powder diffraction. Herein, the importance of structure-property relationships to understanding battery function, why in situ experimentation is critical to this, and the types of experiments and electrochemical cells required to obtain such information are described. For each battery type, selected research that showcases the power of in situ and operando diffraction experiments to understand battery function is highlighted and future opportunities for such experiments are discussed. The intention is to encourage researchers to use in situ and operando techniques and to provide a concise overview of this area of research.
Publisher: Springer Science and Business Media LLC
Date: 17-06-2011
Publisher: The Electrochemical Society
Date: 2007
DOI: 10.1149/1.2734778
Publisher: Elsevier BV
Date: 08-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA09748K
Abstract: We constructed defective heterointerfaces of p-SnO on n-SnS 2 nanosheets by plasma treatment to improve the anode performance in Li-ion batteries.
Publisher: Elsevier BV
Date: 06-2016
Publisher: Elsevier BV
Date: 08-2010
Publisher: Wiley
Date: 24-06-2014
Abstract: A new nitrogen-doped ordered mesoporous carbon (N-doped OMC) is synthesized by using an organic-inorganic coassembly method, in which resol is used as the carbon precursor, dicyandiamide as the nitrogen precursor, silicate oligomers as the inorganic precursors, and F127 as the soft template. The N-doped OMC possesses a surface area as high as 1374 m(2) g(-1) and a large pore size of 7.4 nm. As an electrode material for supercapacitors, the obtained carbon exhibits excellent cycling stability and delivers a reversible specific capacitance as high as 308 F g(-1) in 1 mol L(-1) H(2)SO(4) aqueous electrolyte, of which 58 % of the capacity is due to pseudo-capacitance. The large specific capacitance is attributed to proper pore size distributions, large surface area, and high nitrogen content.
Publisher: Wiley
Date: 03-05-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7EE00763A
Abstract: Li 2 TiSiO 4 with a 0.28 V operational potential may fill the gap between the present 0.1 V carbonaceous and the 1.5 V Li 4 Ti 5 O 12 electrodes.
Publisher: Elsevier BV
Date: 12-2010
Publisher: Elsevier BV
Date: 08-2015
Publisher: Elsevier BV
Date: 07-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4NR03257H
Abstract: Well-distributed lithium amidoborane (LiAB) nanoparticles were successfully fabricated via adopting carbon nanofibers (CNFs) with homogenous pores uniformly containing Li 3 N as the nanoreactor and reactant, for the subsequent interaction with AB.
Publisher: American Chemical Society (ACS)
Date: 10-02-2015
DOI: 10.1021/AM508814G
Abstract: Oily wastewater is always a threat to biological and human safety, and it is a worldwide challenge to solve the problem of disposing of it. The development of interface science brings hope of solving this serious problem, however. Inspired by the capacity for capturing water of natural fabrics and by the underwater superoleophobic self-cleaning property of fish scales, a strategy is proposed to design and fabricate micro/nanoscale hierarchical-structured fabric membranes with superhydrophilicity and underwater superoleophobicity, by coating scaly titanium oxide nanostructures onto fabric microstructures, which can separate oil/water mixtures efficiently. The microstructures of the fabrics are beneficial for achieving high water-holding capacity of the membranes. More importantly, the special scaly titanium oxide nanostructures are critical for achieving the desired superwetting property toward water of the membranes, which means that air bubbles cannot exist on them in water and there is ultralow underwater-oil adhesion. The cooperative effects of the microscale and nanoscale structures result in the formation of a stable oil/water/solid triphase interface with a robust underwater superoleophobic self-cleaning property. Furthermore, the fabrics are common, commercially cheap, and environmentally friendly materials with flexible but robust mechanical properties, which make the fabric membranes a good candidate for oil/water separation even under strong water flow. This work would also be helpful for developing new underwater superoleophobic self-cleaning materials and related devices.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2TA01049F
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM32822D
Publisher: Springer Science and Business Media LLC
Date: 13-10-2014
DOI: 10.1038/SREP06599
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 03-2012
Publisher: Wiley
Date: 25-06-2020
DOI: 10.1002/EOM2.12038
Publisher: Wiley
Date: 17-08-2012
Publisher: Wiley
Date: 17-02-2016
Abstract: Lithium-sulfur batteries are regarded as promising candidates for energy storage devices owing to their high theoretical energy density. The practical application is hindered, however, by low sulfur utilization and unsatisfactory capacity retention. Herein, we present a strategy for configuration of the sulfur cathode, which is composed of an integrated carbon/sulfur/carbon sandwich structure on polypropylene separator that is produced using the simple doctor-blade technique. The integrated electrode exhibits excellent flexibility and high mechanical strength. The upper and bottom carbon layers of the sandwich-structured electrode not only work as double current collectors, which effectively improve the conductivity of the electrode, but also serve as good barriers to suppress the diffusion of the polysulfide and buffer the volume expansion of the active materials, leading to suppression of the shuttle effect and low self-discharge behavior.
Publisher: American Chemical Society (ACS)
Date: 03-01-2023
Publisher: IOP Publishing
Date: 05-2010
Publisher: Elsevier BV
Date: 06-2007
Publisher: Elsevier BV
Date: 07-2009
Publisher: Springer Science and Business Media LLC
Date: 10-10-2018
Publisher: Wiley
Date: 22-10-2023
Abstract: Rechargeable lithium‐carbon dioxide (Li‐CO 2 ) batteries are promising devices for CO 2 recycling and energy storage. However, thermodynamically stable and electrically insulating discharge products (DPs) (e.g., Li 2 CO 3 ) deposited at cathodes require rigorous conditions for completed decomposition, resulting in large recharge polarization and poor battery reversibility. Although progresses have been achieved in cathode design and electrolyte optimization, the significance of DPs is generally underestimated. Therefore, it is necessary to revisit the role of DPs in Li‐CO 2 batteries to boost overall battery performance. Here, we report for the first time, a critical and systematic review of DPs in Li‐CO 2 batteries. We appraise fundamentals of reactions for formation and decomposition of DPs and demonstrate impacts on battery performance including, overpotential, capacity and stability, and highlight the necessity of discharge product management. We assess practical in‐situ/operando technologies to characterize reaction intermediates and the corresponding DPs for mechanism investigation. Additionally, achievable control measures to boost the decomposition of DPs are evidenced to provide battery design principles and improve the battery performance. Findings from this work will deepen the understanding of electrochemistry of Li‐CO 2 batteries and promote practical applications. This article is protected by copyright. All rights reserved
Publisher: Elsevier BV
Date: 09-2006
Publisher: Wiley
Date: 12-02-2018
Publisher: Elsevier BV
Date: 09-2006
Publisher: American Chemical Society (ACS)
Date: 18-09-2019
Abstract: A multifunctional coating with high ionic and electronic conductivity is constructed on the surface of LiNi
Publisher: Elsevier BV
Date: 12-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA22765K
Publisher: Elsevier BV
Date: 11-2014
Publisher: Wiley
Date: 20-04-2016
Abstract: As the delegate of tunnel structure sodium titanates, Na2 Ti6 O13 nanorods with dominant large interlayer spacing exposed facet are prepared. The exposed large interlayers provide facile channels for Na(+) insertion and extraction when this material is used as anode for Na-ion batteries (NIBs). After an activation process, this NIB anode achieves a high specific capacity (a capacity of 172 mAh g(-1) at 0.1 A g(-1) ) and outstanding cycling stability (a capacity of 109 mAh g(-1) after 2800 cycles at 1 A g(-1) ), showing its promising application on large-scale energy storage systems. Furthermore, the electrochemical and structural characterization reveals that the expanded interlayer spacings should be in charge of the activation process, including the enhanced kinetics, the lowered apparent activation energy, and the increased capacity.
Publisher: Elsevier BV
Date: 2013
Publisher: American Chemical Society (ACS)
Date: 27-12-2017
DOI: 10.1021/ACS.NANOLETT.6B04427
Abstract: Layered α-Ni(OH)
Publisher: American Chemical Society (ACS)
Date: 18-02-2022
Abstract: Severe electrolyte decomposition under high voltage can easily lead to degradation of the performance of lithium-ion batteries, which has become a major obstacle to the practical application of high-energy-density batteries. To solve these problems, a dual-functional electrolyte additive comprising inorganic lithium difluorophosphate (LiDFP) and organic 1,3,6-hexanetrinitrile (HTN) was designed and employed to improve the performance of high-voltage Si@C/LiNi
Publisher: Wiley
Date: 27-01-2022
Abstract: Metal phosphorus trichalcogenides (MPTCs) are structurally adjustable 2D layered materials with unique electronic structures and high chemical ersity, implying the huge potential for energy storage application. In the typical electrochemical reaction process, rapid electron/ion conduction and abundant ion transport channels are the key parameters that influence the overall electrochemical performance of the electrode materials. Herein, 2D Cd 1− x PS 3 Li 2 x nanosheets with enhanced mixed electronic/ionic conductivity are synthesized by the intercalation and vacancy strategy. The as‐prepared thin‐layered Cd 1− x PS 3 Li 2 x electrode delivers high capacities of 1056 mAh g −1 at 0.2 A g −1 and 678 mAh g −1 at 8 A g −1 , when used as anode in lithium‐ion batteries. The variation of electronic structure and spatial layered structure in Cd 1− x PS 3 Li 2 x induced by the synergistic effect of lithium‐ion intercalation and Cd vacancies promote the dynamics of mixed electron/ion transport and offer more ion diffusion pathways, resulting in its excellent electrochemical performance. The strategy of mixed electron/ion conduction tuning for Cd 1− x PS 3 Li 2 x can be extended to other MPTCs compounds to further develop their potential in the field of energy storage.
Publisher: Elsevier BV
Date: 11-2018
Publisher: Elsevier BV
Date: 10-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0NR00807A
Abstract: Hexagonal wurtzite ZnS nanowires radially arrayed on cubic zinc-blende ZnS hollow spheres have been successfully achieved for the first time, and such novel heterogeneous ZnS hollow urchin-like hierarchical nanostructures show greatly enhanced photocatalytic properties due to their two-phase enhanced light-harvesting and high surface-to-volume ratio.
Publisher: Elsevier BV
Date: 06-2011
Publisher: Elsevier BV
Date: 2016
Publisher: American Chemical Society (ACS)
Date: 30-09-2015
Publisher: Springer Science and Business Media LLC
Date: 19-03-2019
Publisher: Wiley
Date: 11-04-2022
Abstract: Aqueous monovalent‐ion batteries have been rapidly developed recently as promising energy storage devices in large‐scale energy storage systems owing to their fast charging capability and high power densities. In recent years, Prussian blue analogues, polyanion‐type compounds, and layered oxides have been widely developed as cathodes for aqueous monovalent‐ion batteries because of their low cost and high theoretical capacity. Furthermore, many design strategies have been proposed to expand their electrochemical stability window by reducing the amount of free water molecules and introducing an electrolyte addictive. This review highlights the advantages and drawbacks of cathode and anode materials, and summarizes the correlations between the various strategies and the electrochemical performance in terms of structural engineering, morphology control, elemental compositions, and interfacial design. Finally, this review can offer rational principles and potential future directions in the design of aqueous monovalent‐ion batteries.
Publisher: Wiley
Date: 02-08-2023
Abstract: Tremendous progress has been made in the field of electrochemical energy storage devices that rely on potassium‐ions as charge carriers due to their abundant resources and excellent ion transport properties. Nevertheless, future practical developments not only count on advanced electrode materials with superior electrochemical performance, but also on competitive costs of electrodes for scalable production. In the past few decades, advanced carbon materials have attracted great interest due to their low cost, high selectivity, and structural suitability and have been widely investigated as functional materials for potassium‐ion storage. This article provides an up‐to‐date overview of this rapidly developing field, focusing on recent advanced and mechanistic understanding of carbon‐based electrode materials for potassium‐ion batteries. In addition, we also discuss recent achievements of dual‐ion batteries and conversion‐type K−X (X=O 2 , CO 2 , S, Se, I 2 ) batteries towards potential practical applications as high‐voltage and high‐power devices, and summarize carbon‐based materials as the host for K‐metal protection and possible directions for the development of potassium energy‐related devices as well. Based on this, we bridge the gaps between various carbon‐based functional materials structure and the related potassium‐ion storage performance, especially provide guidance on carbon material design principles for next‐generation potassium‐ion storage devices.
Publisher: Elsevier BV
Date: 04-2013
Publisher: Elsevier BV
Date: 12-2007
Publisher: Elsevier BV
Date: 04-2011
Publisher: Elsevier BV
Date: 08-2016
Publisher: Wiley
Date: 11-2009
No related grants have been discovered for Zaiping Guo.