Ionic conductivity enhancement in gel polymer electrolyte membrane with N-methyl-N-butyl-piperidine-bis(trifluoromethylsulfonyl) imide ionic liquid for lithium ion battery

被引：42

作者：

Ma, Y. ^{[1
]}

Li, L. B. ^{[1
]}

Gao, G. X. ^{[1
]}

Yang, X. Y. ^{[1
]}

You, J. ^{[1
]}

Yang, P. X. ^{[2
]}

机构：

[1] Harbin Univ Sci & Technol, Coll Chem & Environm Engn, Coll Heilongjiang Prov, Key Lab Green Chem Engn & Technol, Harbin 150040, Peoples R China

[2] Harbin Inst Technol, Sch Chem Engn & Technol, 92 West Da Zhi St, Harbin 150001, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2016年 / 502卷

基金：

中国国家自然科学基金;

关键词：

Conductivity; Gel polymerelectrolyte; Ionic liquid; Lithium ion battery; ELECTROCHEMICAL PROPERTIES; SILICA NANOPARTICLES; METHYL CELLULOSE; POROUS MEMBRANES; COMPOSITE; PERFORMANCE; FLUORIDE-TRIFLUORETHYLENE); PLASTICIZERS; CHALLENGES; BINDER;

D O I：

10.1016/j.colsurfa.2016.05.011

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 novel gel polymer electrolyte (GPE) based on polyvinylidene fluoride (PVdF) and polyvinyl alcohol (PVA) with reliable electrochemical performance, mechanical robustness and safety features is prepared by a casting method. The physical, electrochemical and thermal properties of the casting membrane are characterized by scanning electron microscopy (SEM), atomic force microscope (AFM), thermal gravimetric analysis (TG), alternating-current (AC) impedance and charge-discharge techniques. The resulting polymer membrane shows a high ionic conductivity of 1.19 x 10(-3) S/cm with 45.5 wt% of ionic liquid (IL) content while the cell assembled with PVdF/PVA/IL electrolyte delivers better electrochemical stability and higher discharge capacity than that without IL, and the thermal stability is obtained compared to conventional liquid electrolytes. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：130 / 138

页数：9

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