锂离子电池电解液中锂盐与电池性能的关系  

Relationship Between Lithium Salt in Electrolyte of Lithium Ion Battery and Battery Performance

作　　者：魏琳[1] Wei Lin(Zaozhuang Vocational College,Shandong Zaozhuang 277800)

机构地区：[1]枣庄职业学院,山东枣庄277800

出　　处：《山西化工》2022年第7期80-82,共3页Shanxi Chemical Industry

摘　　要：目前锂离子电池(LIBs)具有较高的能量密度,可以在电动汽车(EV)中长距离使用,但充电时间太长。除了改变电极和电池结构外,电解液的组成也会影响锂离子电池的快速充电能力。锂离子电池中使用的电解质通常包括溶解在溶剂混合物中的锂盐溶液,盐浓度、溶剂比和电解质添加剂的变化很小。溶剂和锂盐组分的混合物决定了电解质和电极/电解质界面层中的离子迁移动力学。介绍了锂离子电池电解液中锂盐对电池性能的影响,综述了当前关于锂离子电池电解液中锂盐的研究现状。Current lithium-ion batteries(LIBs)have high energy density and can be used for long distances in electric vehicles(EVs),but the charging time is too long.In addition to changing the electrode and battery structure,the composition of the electrolyte also affects the fast charging capability of Li-ion batteries.Electrolytes used in lithium-ion batteries typically consist of a lithium salt solution dissolved in a solvent mixture with little variation in salt concentration,solvent ratio,and electrolyte additives.The mixture of solvent and lithium salt components determines the kinetics of ion transport in the electrolyte and electrode/electrolyte interface layers.This paper introduces the influence of lithium salts in lithium-ion battery electrolytes on battery performance,and summarizes the current research status of lithium salts in lithium-ion battery electrolytes.

关 键 词：锂离子电池 电解液 电池性能 锂盐 

分 类 号：TM911.4[电气工程—电力电子与电力传动]