Interfacial engineering of Si anodes by confined doping of Co toward high initial coulombic efficiency

作者：Yuanyuan Han, Haoyu Fu, Guihuan Chen, Xiaoshan Wang, Yue Zhao, Xiang Sui, Zhiqiang Zhao, Xiancheng Sang, Qinghao Li, Qiang Li, Qiang Li, Qiang Li · 发表于：Chemical Communications · 年份：2023 · DOI：10.1039/d3cc05365b · 被引用次数：15 · 研究领域：Semiconductor materials and devices、Advancements in Battery Materials、Semiconductor materials and interfaces

magnetometry revealed the stability of the Si-Co layers during cycling. The symmetrical Si-Co layers can protect the overall structure of the Si anodes and facilitate electron conduction. Consequently, the resultant Si anode delivers an impressive initial coulombic efficiency of 93.4% with large capacity retention of 85.07% after 100 cycles.