Overview of the Development of SEI Films for Lithium Ion Batteries
Solid electrolyte interface(SEI)films in lithium-ion batteries play a crucial role in battery performance and safety.This article briefly describes the growth and degradation process of SEI films for lithium-ion batteries,and summarizes the main components of SEI films.Regarding the improvement and optimization of SEI membranes,the current methods for modifying SEI membranes in electrode materials and electrolytes were mainly introduced.Finally,it is pointed out that the modification of positive electrode materials and further research on film forming additives will become hotspots in future research.
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