ORCID Profile
0000-0002-0164-2799
Current Organisation
Institute for Frontier Materials, Deakin University
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Publisher: American Chemical Society (ACS)
Date: 28-12-2020
Publisher: Wiley
Date: 24-04-2023
Abstract: 3D printing technology has demonstrated great potential in fabricating flexible and customizable high‐performance batteries, which are highly desired in the forthcoming intelligent and ubiquitous energy era. However, a significant performance gap, especially in cycling stability, still exists between the 3D‐printed and conventional electrodes, seriously limiting the practical applications of 3D‐printed batteries. Here, for the first time, a series of thermoplastic polyurethane (TPU)‐based 3D‐printed electrodes is developed via fused deposition modeling for flexible and customizable high‐performance lithium‐ion batteries. The TPU‐based electrode filaments in kilogram order are prepared via a facile extrusion method. As a result, the electrodes are well‐printed with high dimensional accuracy, flexibility, and mechanical stability. Notably, 3D‐printed TPU‐LFP electrodes exhibit a capacity retention of 100% after 300 cycles at 1C, which is among the best cycling performance of all the reported 3D‐printed electrodes. Such excellent performance is associated with the superb stress cushioning properties of the TPU‐based electrodes that can accommodate the volume change during the cycling and thus significantly prevent the collapse of 3D‐printed electrode structures. The findings not only provide a new avenue to achieve customizable and flexible batteries but also guide a promising way to erase the performance gap between 3D‐printed and conventional lithium‐ion batteries.
Publisher: Elsevier BV
Date: 2009
DOI: 10.1016/J.FORSCIINT.2008.08.013
Abstract: The study of decaying organisms and death assemblages is referred to as forensic taphonomy, or more simply the study of graves. This field is dominated by the fields of entomology, anthropology and archaeology. Forensic taphonomy also includes the study of the ecology and chemistry of the burial environment. Studies in forensic taphonomy often require the use of analogues for human cadavers or their component parts. These might include animal cadavers or skeletal muscle tissue. However, sufficient supplies of cadavers or analogues may require periodic freezing of test material prior to experimental inhumation in the soil. This study was carried out to ascertain the effect of freezing on skeletal muscle tissue prior to inhumation and decomposition in a soil environment under controlled laboratory conditions. Changes in soil chemistry were also measured. In order to test the impact of freezing, skeletal muscle tissue (Sus scrofa) was frozen (-20 degrees C) or refrigerated (4 degrees C). Portions of skeletal muscle tissue (approximately 1.5 g) were interred in microcosms (72 mm diameter x 120 mm height) containing sieved (2mm) soil (sand) adjusted to 50% water holding capacity. The experiment had three treatments: control with no skeletal muscle tissue, microcosms containing frozen skeletal muscle tissue and those containing refrigerated tissue. The microcosms were destructively harvested at sequential periods of 2, 4, 6, 8, 12, 16, 23, 30 and 37 days after interment of skeletal muscle tissue. These harvests were replicated 6 times for each treatment. Microbial activity (carbon dioxide respiration) was monitored throughout the experiment. At harvest the skeletal muscle tissue was removed and the detritosphere soil was s led for chemical analysis. Freezing was found to have no significant impact on decomposition or soil chemistry compared to unfrozen s les in the current study using skeletal muscle tissue. However, the interment of skeletal muscle tissue had a significant impact on the microbial activity (carbon dioxide respiration) and chemistry of the surrounding soil including: pH, electroconductivity, ammonium, nitrate, phosphate and potassium. This is the first laboratory controlled study to measure changes in inorganic chemistry in soil associated with the decomposition of skeletal muscle tissue in combination with microbial activity.
Publisher: Wiley
Date: 19-02-2020
Publisher: American Chemical Society (ACS)
Date: 30-10-2018
Publisher: Wiley
Date: 20-02-2018
Publisher: American Chemical Society (ACS)
Date: 15-11-2022
Publisher: Elsevier BV
Date: 11-2023
Publisher: Elsevier BV
Date: 03-2009
Publisher: Springer Netherlands
Date: 2009
Publisher: Elsevier BV
Date: 12-2023
Publisher: Springer Netherlands
Date: 2009
Location: No location found
Location: Australia
No related grants have been discovered for Donggun Kim.