Mitigating the volume expansion and enhancing the cycling stability of ferrous fluorosilicate-modified silicon-based composite anodes for lithium-ion batteries

• DOI: 10.1039/d4ta02532f
• Publication Date: 2024-08-30T01:01:02Z
• Authors: Jichang Sun; Xiaoyi Liu; Penglun Zheng; Yang Zhao; Yun Zheng; Jingchao Chai; Zhihong Liu
• Keywords: Cycling; Volume expansion

This study introduces an FeSiF 6 additive synthesized via the reaction of HF with Si–Fe alloys. It prevents crystalline Li 15 Si 4 formation and promotes stable SEI film, significantly enhancing cycling stability silicon-based anodes.