Research progress of separators for lithium-ion batteries

doi:10.3969/j.issn.2095-4239.2016.02.010

Abstract

Abstract: Recently, there are intensive efforts to develop advanced separators for lithium-ion batteries for different applications such as electric vehicles and energy storage. This paper summarizes the requirements of battery separators and the structure and properties of five important types: ①polyolefin separators; ②modified polyolefin separators; ③composite separator; ④nano-fiber separator, and ⑤ electrolyte membranes. The performance requirements for lithium ion battery separator are introduced and the current research results of various types of power lithium ion battery separator are reviewed. The features and applications of the modified separators for lithium ion battery are introduced. It is noted that the safety related properties and uniformity are the key performances of battery separator. The outlooks and future directions in this research field are given.

Key words: lithium-ion battery, separator, composite separator, modification, safety

CLC Number:

TM911

XIAO Wei, GONG Yaqun, WANG Hong, ZHAO Lina, LIU Jianguo, YAN Chuanwei. Research progress of separators for lithium-ion batteries[J]. Energy Storage Science and Technology, 2016, 5(2): 188-196.

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