The emergence of anionic redox reactions in layered transition metal oxide cathodes provides practical opportunity to boost the energy density of rechargeable batteries. However, the activation of anionic redox reaction in layered oxides has significant voltage hysteresis and decay that reduce battery performance and limit commercialization. Here, we critically review the up-to-date development of anionic redox reaction in layered oxide cathodes, summarize the proposed reaction mechanism, and unveil their connection to voltage hysteresis and decay based on the state-of-the-art progress. In addition, advances associated with various modification approaches to mitigate the voltage hysteresis/decay in layered transition metal oxide cathodes are also included. Finally, we conclude with an appraisal of further research directions including rational design of high-performance layered oxide cathodes with reversible anionic redox reactions and suppressed voltage hysteresis/decay. Findings will be of immediate benefit to the development of layered oxide cathodes for high performance rechargeable batteries.

层状过渡金属氧化物阴极中阴离子氧化还原反应的出现为提高可充电电池的能量密度提供了实际机会。然而，层状氧化物中阴离子氧化还原反应的激活具有显着的电压滞后和衰减，从而降低了电池性能并限制了商业化。在这里，我们批判性地回顾了层状氧化物正极中阴离子氧化还原反应的最新发展，总结了所提出的反应机理，并根据最新进展揭示了它们与电压滞后和衰减的联系。此外，还包括与减轻层状过渡金属氧化物阴极中电压滞后/衰减的各种修改方法相关的进展。最后，最后，我们对进一步的研究方向进行了评估，包括合理设计具有可逆阴离子氧化还原反应和抑制电压滞后/衰减的高性能层状氧化物正极。研究结果将对开发用于高性能可充电电池的层状氧化物阴极产生直接的好处。