锂离子电池SEI成膜添加剂的研究

Research Progress of SEI Film-forming Additives for Li-ion Batteries

开发高效优质的固体电解质界面(SEI)成膜添加剂是提高锂离子电池性能的一种经济而有效的途径.本文从SEI成膜添加剂成膜机理的角度,分析和评价了已有的还原型添加剂、反应型添加剂及修饰型添加剂的作用效果;综述了理论计算在锂离子电池SEI成膜添加剂研究中的应用,并提出了"理论设计、材料合成、性能评估"三个研究环节无缝连接锂离子电池中SEI成膜添加剂创新研发的新思路.

Development of quality and efficient solid electrolyte interface/interphase（SEI） film-forming additives is an economic and efficient approach for lithium ion batteries to improve performance.On the basis of the mechanism of SEI film-forming,the performance of additives,including reduction-type,reaction-type and modified-type additives are analyzed and evaluated in this paper.The application of theoretical calculation methods on SEI film-forming additives is reviewed.The new way of ＂theoretical design-material synthesis-performance evaluation＂ for developing film-forming additives was outlined