A perovskite nanolayer formed at the surface of layered cathode particles enables ultra-stable high-voltage cycling. The lanthanum and calcium-based perovskite layer serves as an oxygen buffer, and effectively suppresses the oxygen evolution reaction that is a common cause of failure in hybrid anion- and cation-redox cathodes.
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This is a summary of: Cai, M. et al. Stalling oxygen evolution in high-voltage cathodes by lanthurization. Nat. Energy https://doi.org/10.1038/s41560-022-01179-3 (2023).
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Surface engineering to prevent oxygen evolution of high-voltage cathodes. Nat Energy 8, 121–122 (2023). https://doi.org/10.1038/s41560-022-01180-w
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DOI: https://doi.org/10.1038/s41560-022-01180-w
