具有热稳定性的锂离子电池隔膜材料研究进展  

Progress on Thermal-Stable Lithium-Ion Battery Separators

作　　者：狄隆康 谢正伟[1,2] 王庆印 王公应[1,2] 姜宁 Longkang Di;Zhengwei Xie;Qingyin Wang;Gongying Wang;Ning Jiang(Chengdu Institute of Organic Chemistry,University of Chinese Academy of Sciences,Chengdu 610041,China;School of Chemical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;School of Chemical Engineering,Sichuan University of Science&Engineering,Zigong 643002,China)

机构地区：[1]中国科学院成都有机化学研究所,四川成都610041 [2]中国科学院大学化学科学学院,北京100049 [3]四川轻化工大学化学工程学院,四川自贡643002

出　　处：《高分子材料科学与工程》2022年第12期137-145,共9页Polymer Materials Science & Engineering

基　　金：四川省重点研发计划项目(2020YFG0159);四川省重点研发计划项目(2021YFG0109)。

摘　　要：近年来,锂离子电池(LIBs)广泛用于电动汽车、便携式电子设备等储能系统,但是,在电池工作中频繁发生的热失控现象严重影响了使用电池的安全性。因此,开发具有热稳定性的锂离子电池隔膜材料势在必行。文中综述分析了目前商用聚烯烃隔膜的特点及缺陷,分别从聚烯烃隔膜的表面改性、新型的高耐热聚合物隔膜的开发与改性、赋予隔膜热关断性能等方面探究了提高锂电池隔膜的热稳定性方法,并提出了该研究方向的关键挑战和前景。In recent years,lithium-ion battery(LIBs)has been widely used in energy storage systems such as electric vehicles,portable electronic devices,etc.However,frequent thermal runaway during battery operation has seriously affected LIBs safety.Therefore,it is imperative to develop LIBs separator materials with thermal stability.In this work,the characteristics and defects of commercial polyolefin separators were first analyzed.Next,the methods to improve the thermal stability of LIBs separators were investigated,such as surface modification of polyolefin separators,new high heat-resistant polymer separators,and the separators with thermal shutdown performance.Finally,the key challenges and prospects in this field were presented.

关 键 词：锂离子电池 电池隔膜 热稳定性 改性 

分 类 号：TM912[电气工程—电力电子与电力传动]