Oxygen Loss in Layered Oxide Cathodes for Li-Ion Batteries: Mechanisms, Effects, and Mitigation. Zhang, H., Liu, H., Piper, L., Whittingham, M. S., & Zhou, G. Chemical Reviews, 122(6):5641–5681, January, 2022. doi abstract bibtex Layered lithium transition metal oxides derived from LiMO2 (M = Co, Ni, Mn, etc.) have been widely adopted as the cathode of Li-ion batteries for portable electronics, electric vehicles and energy storage. Oxygen loss in the layered oxides is one of the major reasons leading to the cycling-induced structural degradation and its associated fade in electrochemical performance. Herein, we review recent progress in understanding the phenomena of oxygen loss and resulting structural degradation in layered oxide cathodes. We first present the major driving forces leading to the oxygen loss and then describe the associated structural degradation resulting from the oxygen loss. We follow this analysis with a discussion of the kinetic pathways that enable oxygen loss, and then we address the resulting electrochemical fade. Finally, we review the possible approaches towards mitigating oxygen loss and the associated electrochemical fade, as well as detailing novel analytical methods for probing the oxygen loss.
@article{zhang_oxygen_2022,
title = {Oxygen {Loss} in {Layered} {Oxide} {Cathodes} for {Li}-{Ion} {Batteries}: {Mechanisms}, {Effects}, and {Mitigation}},
volume = {122},
copyright = {All rights reserved},
issn = {0009-2665},
doi = {10.1021/acs.chemrev.1c00327},
abstract = {Layered lithium transition metal oxides derived from LiMO2 (M = Co, Ni, Mn, etc.) have been widely adopted as the cathode of Li-ion batteries for portable electronics, electric vehicles and energy storage. Oxygen loss in the layered oxides is one of the major reasons leading to the cycling-induced structural degradation and its associated fade in electrochemical performance. Herein, we review recent progress in understanding the phenomena of oxygen loss and resulting structural degradation in layered oxide cathodes. We first present the major driving forces leading to the oxygen loss and then describe the associated structural degradation resulting from the oxygen loss. We follow this analysis with a discussion of the kinetic pathways that enable oxygen loss, and then we address the resulting electrochemical fade. Finally, we review the possible approaches towards mitigating oxygen loss and the associated electrochemical fade, as well as detailing novel analytical methods for probing the oxygen loss.},
number = {6},
journal = {Chemical Reviews},
author = {Zhang, Hanlei and Liu, Hao and Piper, Louis and Whittingham, M. Stanley and Zhou, Guangwen},
month = jan,
year = {2022},
pages = {5641--5681},
}
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