Micro-porous P(VDF-HFP)-based polymer electrolyte filled with Al2O3 nanoparticles

被引：214

作者：

Li, ZH ^{[1
]}

Su, GY ^{[1
]}

Wang, XY ^{[1
]}

Gao, DS ^{[1
]}

机构：

[1] Xiangtan Univ, Coll Chem, Xiangtan 411105, Hunan, Peoples R China

来源：

SOLID STATE IONICS | 2005年 / 176卷 / 23-24期

关键词：

polymer electrolyte; P(VDF-HFP); Al2O3; FTIR; electrochemical property;

D O I：

10.1016/j.ssi.2005.05.006

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 micro-porous poly(vinylidenefluoride-co-hexafluoropropylene)[P(VDF-HFP)]-based electrolyte (MPE) is prepared by the phase inversion technology using N, N-dimethyl formamide (DMF) as solvent and distilled water as non-solvent. In order to enhance the porosity of polymer membrane, glycerin is added to the polymer solution as plasticizer as well as non-solvent. Various amounts of alumina (Al2O3) nanoparticles are used as fillers in the preparation of porous polymer membrane. The crystallinity of polymer matrix decreases with addition of Al2O3 nanoparticles and the amorphous phase expands accordingly. The resulting MPE has 2.11 X 10(-3) S(.)cm(-1) of ionic conductivity, 0.66 of the lithium ions transference number and 4.816 kJ(.)mol(-1) of the activation energy for ions transport when the polymer matrix contains 10% of the mass fraction of Al2O3 nanoparticles. Effect of Al2O3 on the electrochemical properties of polymer electrolyte has been investigated in this paper. Analysis of FTIR spectra shows that there is an interaction between Al2O3 nanoparticles and C-F bonds of polymer chain. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1903 / 1908

页数：6

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