Effect of Different Salts on PVAc/PVdF-co-HFP Based Polymer Blend Electrolytes

被引：60

作者：

Ulaganathan, M. ^{[1
]}

Rajendran, S. ^{[1
]}

机构：

[1] Alagappa Univ, Sch Phys, Karaikkudi 630003, Tamil Nadu, India

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2010年 / 118卷 / 02期

关键词：

ethylene carbonate; poly(vinyl acetate); poly(vinylidene fluoride-co-hexafluoropropylene); scanning electron microscope; ionic conductivity; LITHIUM ION CONDUCTION; AC-IMPEDANCE; TRANSPORT;

D O I：

10.1002/app.32404

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Solid polymer electrolytes comprising poly(vinyl acetate) (PVAc), and poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-co-HFP), low molecular weight plasticizer [Ethylene Carbonate (EC)] and different lithium salts (LiBF4, LiClO4, and LiCF3SO3) are prepared by solution casting technique. The electrolyte films are subjected to various characterization techniques such as XRD, FTIR, DSC, SEM and ac impedance analysis. Ionic conductivity is obtained as a function of frequency at various temperatures ranging from 302 to 363 K. The maxi-mum room temperature ionic conductivity is found to be 1.18 x 10(-3) S cm(-1) for the film containing LiBF4 and the temperature dependent ionic conductivity values seem to obey VTF relation. Microstructure of the samples has been depicted by means of scanning electron microscope. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 646-651, 2010

引用

页码：646 / 651

页数：6

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