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Matthew Capener
Warwick Manufacturing Group, University of Warwick, Coventry CV4 7AL, UK

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Journal article
Published: 08 June 2021 in Batteries
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To investigate the influence of cell formats during a cell development programme, lithium-ion cells have been prepared in three different formats. Coin cells, single layer pouch cells, and stacked pouch cells gave a range of scales of almost three orders of magnitude. The cells used the same electrode coatings, electrolyte and separator. The performance of the different formats was compared in long term cycling tests and in measurements of resistance and discharge capacities at different rates. Some test results were common to all three formats. However, the stacked pouch cells had higher discharge capacities at higher rates. During cycling tests, there were indications of differences in the predominant degradation mechanism between the stacked cells and the other two cell formats. The stacked cells showed faster resistance increases, whereas the coin cells showed faster capacity loss. The difference in degradation mechanism can be linked to the different thermal and mechanical environments in the three cell formats. The correlation in the electrochemical performance between coin cells, single layer pouch cells, and stacked pouch cells shows that developments within a single cell format are likely to lead to improvements across all cell formats.

ACS Style

Grace Bridgewater; Matthew Capener; James Brandon; Michael Lain; Mark Copley; Emma Kendrick. A Comparison of Lithium-Ion Cell Performance across Three Different Cell Formats. Batteries 2021, 7, 38 .

AMA Style

Grace Bridgewater, Matthew Capener, James Brandon, Michael Lain, Mark Copley, Emma Kendrick. A Comparison of Lithium-Ion Cell Performance across Three Different Cell Formats. Batteries. 2021; 7 (2):38.

Chicago/Turabian Style

Grace Bridgewater; Matthew Capener; James Brandon; Michael Lain; Mark Copley; Emma Kendrick. 2021. "A Comparison of Lithium-Ion Cell Performance across Three Different Cell Formats." Batteries 7, no. 2: 38.