X-ray photoemission electron microscopy (X-PEEM) of cycled LiCoO₂ composite electrodes has revealed the interfaces of various components within the composite electrodes and their dependence on additives in the electrolyte and the interplay of multiple components in the electrodes. This study visualizes CoF₂ distribution and Co–O bonding variation along with local component agglomeration and degradation. The obtained new insights will assist further development of long-life high-voltage LiCoO₂/C batteries.

中文翻译：

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添加剂对高压LiCoO ₂复合电极界面的纳米化学成像

循环LiCoO ₂复合电极的X射线电子发射显微镜（X-PEEM）揭示了复合电极内各种组分的界面及其对电解质中添加剂的依赖性以及电极中多种组分之间的相互作用。该研究可视化了CoF _2的分布和Co-O键的变化以及局部组分的团聚和降解。获得的新见解将有助于长寿命高电压LiCoO ₂ / C电池的进一步开发。