ORCID Profile
0000-0002-6509-7769
Current Organisation
University College London
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Publisher: The Electrochemical Society
Date: 10-2014
Abstract: In a self-breathing fuel cell, oxygen is taken directly from ambient air which provides the benefit of reduced system complexity and system operation. This study explores the use of, printed circuit boards (PCBs) as flow field plates to design a self-breathing fuel cell which helps reduce overall volume and cost of the system. It investigates the effect opening ratios have on fuel cell performance using polarization curves and electrochemical impedance spectroscopy. The result obtained indicates that greater opening ratios improve the mass transport properties of the fuel cell but increased Ohmic resistance as a result of the increased openings and reduced area of lands/ ribs respectively. A maximum power density of 188 mW cm -2 was achieved.
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 12-2015
Publisher: Frontiers Media SA
Date: 19-10-2020
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 05-2014
Publisher: Elsevier BV
Date: 2014
Publisher: The Electrochemical Society
Date: 19-10-2020
Abstract: The ability to track electrode degradation, both spatially and temporally, is fundamental to understand performance loss during operation of lithium batteries. X-ray computed tomography can be used to follow structural and morphological changes in electrodes however, the direct detection of electrochemical processes related to metallic lithium is difficult due to the low sensitivity to the element. In this work, 4-dimensional neutron computed tomography, which shows high contrast for lithium, is used to directly quantify the lithium diffusion process in spirally wound Li/SOCl 2 primary cells. The neutron dataset enables the quantification of the lithium transport from the anode and the accumulation inside the SOCl 2 cathode to be locally resolved. Complementarity between the collected neutron and X-ray computed tomographies is shown and by applying both methods in concert we have observed lithium diffusion blocking by the LiCl protection layer and identified all cell components which are difficult to distinguish using one of the methods alone.
Publisher: Elsevier BV
Date: 10-2014
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for James Robinson.