锂离子电池中SEI膜组成与改性的研究进展

Progress of composition and modification of solid electrolyte interface in lithium ion batteries

在锂离子电池中固体电解质界面(SEI)膜具有至关重要的作用。简述了锂离子电池SEI膜的生长与退化,总结了SEI膜的组成,从电极材料和电解液方面入手,介绍了目前对SEI膜改性的方法。指出对正极材料的改性和对成膜添加剂的进一步研究将成为今后研究的热点。

The solid electrolyte interface （SEI） film plays an important role in lithium ion batteries. The growth and degradation of SEI film in the lithium-ion battery was described, the composition of SEI film were summarized, starting from the aspects of electrode materials and electrolyte, and the methods of SEI film modification were introduced. The modification of cathode materials and further research on the film-forming additives will be the research hotspot.