锂离子电池隔膜材料性质研究及展望

Research and Prospect of the Properties of Lithium Ion Battery Separator Material

锂离子电池隔膜是锂离子电池结构中四大主要材料之一,主要是提供电解液中锂离子迁移通道,并隔绝正负极反应避免短路发生,是影响锂离子电池性能和安全性等的重要材料。本文通过对锂离子电池隔膜性能要求的分析,对聚烯烃隔膜、无纺布类隔膜、陶瓷复合类隔膜进行简要总结与分析,并对高性能隔膜材料的设计与构筑进行了展望。

Lithium ion battery separator is one of the four main materials in the structure of lithium ion battery.Its main function is to provide lithium ion migration channels in electrolyte and isolate positive and negative reactions to avoid short circuit.It is an important material that affects the performance and safety of lithium ion battery.Based on the analysis of the performance requirements of lithium ion battery separators,this paper briefly summarizes and analyzes polyolefin separators,non-woven fabrics separators and ceramic composite separators,and looks forward to the design and construction of high performance separators.