液晶与显示2018，Vol.33Issue(12)：973-981,9.DOI:10.3788/YJYXS20183312.0973
聚对苯二甲酰对苯二胺锂离子电池隔膜材料研究进展
Recent progress of poly (p-phenylene terephthalamide) separator for lithium ion battery
何濂远 1李京龙 1闫鸿琛 1谢春杰 1田雯婷 1施逸飞 1庹新林1
作者信息
- 1. 清华大学 化学工程系高分子研究所 先进材料重点实验室,北京 100084
- 折叠
摘要
Abstract
Lithium-ion batteries develop rapidly these years and receive wide attention for their advantages of no memory effect, outstanding cycle retention and high power density.However, widely used polyolefin separators are still unsafe because they will shrink at high temperature.In order to solve this problem, people compose polyolefin separators with heat-resistant inorganic or organic materials to endow separators with resistance to thermal shrinkage as well as shutdown function.Among all these materials, poly (p-phenylene terephthalamide) (PPTA) separators is very promising for the thermal stability, good chemical resistance and excellent mechanical properties.However, it is still a great technical challenge for PPTA as separator due to the difficulty in manufacturing property.This review focuses on the technical developments of PPTA pure and composite separators, and introduces the contribution of our research team on PPTA separator.Pure and composite PPTA separators can be produced using PPTA nanofiber self-assembly method, which results in controllable thickness, porosity of separator and excellent battery properties.The results show that PPTA separator is promising in lithium ion battery application as safe separator.关键词
锂离子电池/隔膜/PPTA/纳米纤维/液晶高分子Key words
lithium ion battery/separator/poly (p-phenelene terephthalamide)/nanofiber/liquid crystalline polymer分类
化学化工引用本文复制引用
何濂远,李京龙,闫鸿琛,谢春杰,田雯婷,施逸飞,庹新林..聚对苯二甲酰对苯二胺锂离子电池隔膜材料研究进展[J].液晶与显示,2018,33(12):973-981,9.
