PVDF porous matrix with controlled microstructure prepared by TIPS process as polymer electrolyte for lithium ion battery

被引：137

作者：

Ji, Gen-Liang ^{[1
]}

Zhu, Bao-Ku ^{[1
]}

Cui, Zhen-Yu ^{[1
]}

Zhang, Chun-Fang ^{[1
]}

Xu, You-Yi ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China

来源：

POLYMER | 2007年 / 48卷 / 21期

基金：

中国国家自然科学基金;

关键词：

thermally induced phase separation; membrane microstructure; polymer electrolyte;

D O I：

10.1016/j.polymer.2007.08.049

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(vinylidene fluoride) (PVDF) microporous matrix of polymer electrolyte for lithium ion battery was prepared via the thermally induced phase separation (TIPS) process using diluent mixture of dibutyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP). Since this method has only one parameter, namely the DBP/DEHP ratio in diluent mixture, the membrane microstructure is easily and conveniently controlled. With the assistance of a pseudo-binary temperature-DBP ratio phase diagram of the PVDF-diluent mixture system, the membrane formation mechanism for different microstructures of membranes was proposed. In addition to studying the different microstructures available in TIPS process, the relationship between performance of membrane, electrochemical property of polymer electrolyte and final microstructure has been investigated in this paper. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：6415 / 6425

页数：11

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