聚烯烃
微型多孔材料
分离器(采油)
材料科学
多孔性
电解质
纳米技术
工艺工程
电极
复合材料
化学
工程类
热力学
物理
物理化学
图层(电子)
作者
Sung Cik Mun,Jong Ho Won
出处
期刊:Crystals
[MDPI AG]
日期:2021-08-24
卷期号:11 (9): 1013-1013
被引量:17
标识
DOI:10.3390/cryst11091013
摘要
Rechargeable lithium-ion batteries (LIBs) have emerged as a key technology to meet the demand for electric vehicles, energy storage systems, and portable electronics. In LIBs, a permeable porous membrane (separator) is an essential component located between positive and negative electrodes to prevent physical contact between the two electrodes and transfer lithium ions. Among several types, microporous polyolefin membranes have dominated the commercial separator market for LIBs operated with liquid electrolytes, favored for their chemical and electrochemical stability, high mechanical strength, uniform pore size, and inexpensive manufacturing and materials cost. In this review, we summarize the principles and theoretical background underlying conventional manufacturing processes and newly emerging microporous polyolefin separators. Based on their mechanical and physical properties, as collected from the literature, we introduce a number of processing type-dependent characteristics and universal correlations among their properties. This will provide a macroscopic view on the subject and a guideline for the development of next-generation separators.
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