Revisiting the capacity-fading mechanism of P2-type sodium layered oxide cathode materials during high-voltage cycling

Meidan Jiang,Guannan Qian,Xiao-Zhen Liao,Zhouhong Ren,Qingyu Dong,Dechao Meng,Guijia Cui,Siqi Yuan,Sang-Jun Lee,Tian Qin,Xi Liu,Yanbin Shen,Yu-Shi He,Liwei Chen,Yijin Liu,Linsen Li,Zi-Feng Ma

Journal of Energy Chemistry（2022）

引用 19|浏览12

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摘要

The capacity-fading of P2-type sodium layered cathode materials is mainly due to lattice distortion and crystal-plane buckling induced by the P2-O2 phase transition during high-voltage cycling.

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关键词

Phase transition,Layered cathode,Buckling,Capacity fading mechanism,Sodium-ion batteries

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