电解液及其界面电化学性质的机理研究进展  

Research progress on electrochemical properties of electrolyte and its interphase

作　　者：邢丽丹[1] 谢启明 李伟善[1] Xing Li-Dan;Xie Qi-Ming;Li Wei-Shan(School of Chemistry,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学化学学院,广州510006

出　　处：《物理学报》2020年第22期121-130,共10页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:21573080);广东省杰出青年基金(批准号:2017B030306013)资助的课题。

摘　　要：电解液在锂离子电池中不仅起到传导离子的作用,其在电极界面所形成的电解液薄层在很大程度上决定了电极/电解液界面的性质,进而影响电池的循环稳定性、倍率性能和安全性能.锂离子电池得以成功商品化并广泛应用至今,与电解液在电极表面分解形成的固体电解质界面膜息息相关.本文简要综述界面电解液的电化学稳定性、分解规律和影响因素,旨在抛砖引玉,引起更多科学家对电解液及其界面性质研究的关注和重视.Electrolyte not only plays the role of conducting ions in lithium ion battery,but also the thin layer electrolyte formed on the electrode surface determines the stability of electrode/electrolyte interface to a large extent,thus affecting the cycling stability,rate performance and safety of the battery.The successful commercialization and widespread application of lithium ion battery is closely related to the solid electrolyte interface film formed by the decomposition of electrolyte on the electrode surface.In this paper,the electrochemical stability and decomposition mechanism of the interface electrolyte are briefly reviewed,aiming to draw more scientists'attention to the electrolyte and its interfacial properties.

关 键 词：锂离子电池 电极/电解液界面 电化学稳定性 固体电解质界面膜 机理研究 

分 类 号：TM912[电气工程—电力电子与电力传动]