锂离子电池绝缘包覆材料研究进展与展望  

Research Progress and Prospects of Insulation Coating Material for Lithium-Ion Battery

作　　者：赖铱麟 马晓明 渠展展 刘皓 曾星 LAI Yilin;MA Xiaoming;QU Zhanzhan;LIU Hao;ZENG Xing(China Electric Power Research Institute Co.,Ltd.,Beijing 100196,China)

机构地区：[1]中国电力科学研究院有限公司,北京100196

出　　处：《湖南电力》2025年第1期21-28,共8页Hunan Electric Power

基　　金：国家电网有限公司科技项目(4000-202355077A-1-1-ZN)。

摘　　要：随着储能系统向高压化方向发展,锂离子电池现有的绝缘防护手段面临严峻挑战。基于锂离子电池目前采用的PET蓝膜绝缘包覆材料特性,从材料老化与外部冲击两方面分析电池绝缘包覆材料失效的诱因,对绝缘包覆材料发生绝缘失效后的风险性进行分析。在此基础上,探索适用于电池绝缘防护的包覆材料体系,针对环氧体系、酚醛体系、聚酯体系、热熔胶体系及聚酰亚胺体系材料的优劣势进行分析,为绝缘包覆材料研究提供新思路。With the development of energy storage systems towards high voltage,the existing insulation protection measures for lithium-ion storage batteries are facing severe challenges.Based on the characteristics of PET blue film insulation coating material currently used in lithium-ion batteries,the causes of insulation coating material failure in batteries are analyzed from two aspects of material aging and external impact,and a risk analysis of insulation coating material failure is conducted.On this basis,a coating material system suitable for battery insulation protection is explored,and the advantages and disadvantages of epoxy system,phenolic system,polyester system,hot melt adhesive system and polyimide system are analyzed,providing new ideas for insulation coating materials research.

关 键 词：锂离子电池 绝缘包覆材料 PET蓝膜 材料老化 环氧树脂 

分 类 号：TM911[电气工程—电力电子与电力传动]