The commercialization of lithium- and manganese-rich layered cathodes has been hindered by voltage decay during cycling, attributable to the instability of the honeycomb local structure. A lithium-rich cathode material is developed in which the introduction of excess transition metal ions pins and stabilizes the honeycomb structure, suppressing the voltage decay.
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References
Zheng, J. et al. Li‐ and Mn‐rich cathode materials: challenges to commercialization. Adv. Energy Mater. 7, 1601284 (2017). A review article that presents the challenges facing the commercialization of LMR cathodes.
Liu, T. et al. Origin of structural degradation in Li-rich layered oxide cathode. Nature 606, 305–312 (2022). This paper reports that lattice strain in LMR materials causes oxygen release and battery failure.
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This is a summary of: Dong, L. et al. A Li-rich layered oxide cathode with negligible voltage decay. Nat. Energy https://doi.org/10.1038/s41560-023-01289-6 (2023).
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Atomic pinning mitigates voltage decay in a lithium-rich layered oxide. Nat Energy 8, 1069–1070 (2023). https://doi.org/10.1038/s41560-023-01329-1
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DOI: https://doi.org/10.1038/s41560-023-01329-1
