A lithium-ion battery separator prepared using a phase inversion process

被引：53

作者：

Huang, Xiaosong ^{[1
]}

机构：

[1] GM Global R&D, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA

来源：

JOURNAL OF POWER SOURCES | 2012年 / 216卷

关键词：

Phase inversion; Battery separator; Porous; Rate capability; Lithium ion battery; POROUS POLYMER ELECTROLYTES; MEMBRANES; COPOLYMER; GEL; MECHANISMS;

D O I：

10.1016/j.jpowsour.2012.05.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A battery separator is a porous membrane that separates the positive and negative electrodes while maintaining a good ionic flow. A method of making separators made of polyetherimide through a phase-inversion process is described. The membranes prepared by this process showed uniform porous structures as indicated by the scanning electron microscope (SEM) images. The membranes also exhibited satisfactory tensile properties and enabled high ionic conductance when saturated with a liquid electrolyte for lithium-ion batteries. Coin cells with this type of separators were prepared. Stable cycling performance and improved rate capabilities were observed when tested at room temperature. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：216 / 221

页数：6

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