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10 (a)～(b) LMLOs改性前后的原位XRD谱图[90]；(c) LMLOs中层状@尖晶石@碳异质结构的高分辨率透射电子显微镜(HRTEM)图像[32]；(d)层状@尖晶石@碳异质结构示意图[32]；(e)外层为相梯度且镍含量较低的富锂层状氧化物颗粒形成过程及设计策略示意图[91]

Fig. 10 (a)～(b) in situ XRD image of LMLOs which before and after modification[90]; (c) high-resolution transmission electron miscroscopy (HRTEM) image of the layered@spinel@carbon heterostructure in LMLOs [32]; (d) schematic view of the layered@spinel@carbon heterostructure[32]; (e) schematic diagram of the formation process and design strategy of Li-rich layered oxide particle with phase gradient outer layer accompanied by poor nickel content[91]