Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG for lithium ion conduction

作     者：Mei ZHANG Aiqing ZHANG Zhenyu CUI Baoku ZHU Gaige HAN Youyi XU 

作者机构：Institute of Polymer ScienceZhejiang UniversityHangzhou 310027China College of Chemistry and Materials ScienceSouth-Central University for NationalitiesWuhan 430074China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2008年第2卷第1期

页      面：89-94页

核心收录：

学科分类：0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：This work is financially supported by the National Natural Science Foundation of China(Grant No.50433010) the State Key Development Program for Basic Research of China(Grant No.2003CB615705) the National High-Tech Research and Development Plan of China(Grant No.2006AA03Z233) the Open Project Program of Hubei Province Key Laboratory of Catalysis and Materials Science of South-Central University for Nationalities 

主　　题：poly(vinylidene fluoride-co-hexafluoropro-pylene) lithium ion polyethylene glycol gel electrolyte porous membrane 

摘      要：Lithium ion conducting membranes are the key materials for lithium *** lithium ion conducting gel polymer electrolyte membrane(Li-GPEM)based on porous poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP)matrix and cross-linked PEG network is pre-pared by a typical phase inversion *** immersing theporousPVDF-HFPmembraneinliquidelectrolytecon-taining poly(ethylene glycol)diacrylate(PEGDA)and an initiator to absorb the liquid electrolyte at 25℃,and then thermally cross-linking at 60℃,the Li-GPEM is fabricated *** measurements on its weight loss,mech-anical and electrochemical properties reveal that the obtained Li-GPEM has better overall performance than the liquid and blend gel systems used as conductive media in lithium *** ionic conductivity of the fabricated Li-GPEM can reach as high as 2.25×10^(-3) S/cm at 25℃.