Yuhui Chen
High capacity surface route discharge at the potassium-O 2 electrode
Chen, Yuhui; Jovanov, Zarko P.; Gao, Xiangwen; Liu, Jingyuan; Holc, Conrad; Johnson, Lee R.; Bruce, Peter G.
Authors
Zarko P. Jovanov
Xiangwen Gao
Jingyuan Liu
Conrad Holc
LEE JOHNSON LEE.JOHNSON@NOTTINGHAM.AC.UK
Associate Professor of Chemistry
Peter G. Bruce
Abstract
Discharge by a surface route at the cathode of an aprotic metal-O2 battery typically results in surface passivation by the non-conducting oxide product. This leads to low capacity and early cell death. Here we investigate the cathode discharge reaction in the potassium-O2 battery and demonstrate that discharge by a surface route is not limited to growth of thin ( 1 μm product layer, far in excess of that possible in the related lithium-O2 battery. These results demonstrate a high-capacity surface route in a metal-O2 battery for the first time and the insights revealed here have significant implications for the design of the K-O2 battery.
Citation
Chen, Y., Jovanov, Z. P., Gao, X., Liu, J., Holc, C., Johnson, L. R., & Bruce, P. G. (2018). High capacity surface route discharge at the potassium-O 2 electrode. Journal of Electroanalytical Chemistry, 819, 542-546. https://doi.org/10.1016/j.jelechem.2018.03.041
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 20, 2018 |
Online Publication Date | Mar 21, 2018 |
Publication Date | 2018-06 |
Deposit Date | Mar 27, 2018 |
Publicly Available Date | Mar 27, 2018 |
Journal | Journal of Electroanalytical Chemistry |
Print ISSN | 1572-6657 |
Electronic ISSN | 1873-2569 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 819 |
Pages | 542-546 |
DOI | https://doi.org/10.1016/j.jelechem.2018.03.041 |
Keywords | Metal-air; Oxygen reduction |
Public URL | https://nottingham-repository.worktribe.com/output/938367 |
Publisher URL | https://www.sciencedirect.com/science/article/pii/S1572665718302108 |
Contract Date | Mar 27, 2018 |
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