富锂锰基层状氧化物正极材料面临的挑战及解决方案

张祖豪, 丁晓凯, 罗冬, 崔佳祥, 谢惠娴, 刘晨宇, 林展

Challenges and solutions of lithium-rich manganese-based layered oxide cathode materials

Zuhao ZHANG, Xiaokai DING, Dong LUO, Jiaxiang CUI, Huixian XIE, Chenyu LIU, Zhan LIN

图3 (a) 循环过程中Li1.2Ni0.2Ru0.6O2中的TM离子迁移机制，其中蓝色和橙色分别表示TM离子和Li离子[53]； (b) Li1.2Ni0.2Mn0.6O2材料在循环过程中从层状到尖晶石相的结构转变示意图[14]

Fig. 3 (a) schematic describing the TM migration mechanism in Li1.2Ni0.2Ru0.6O2 upon cycling, where blue and orange indicate transition metal and lithium ions, respectively[53]; (b) schematic view of structural transformation from layered to spinel phase upon cycling for Li1.2Ni0.2Mn0.6O2 active materials[14]