Preparation of P(VDF-HFP)/PMMA Blend Polymer Electrolyte Membrane with Water as Material for Phase Separation and Pore Producer

Abstract

Abstract: A new method is proposed to prepare blend polymer electrolyte by using water as the material for phase separation and pore producer instead of traditional organic material. The blend polymer electrolyte consisting of polyvinylidene fluoride-co-hexafluoropropylene P(VDF-HFP) and poly(methyl methacrylate) (PMMA) was prepared by this method. The SEM images show that the blend polymer electrolyte films have alveolate network structures, which benefit the increase of ionic conductivity. The interaction between two kinds of polymers within the blend polymer was confirmed by FTIR, XRD and DSC studies. The ionic conductivity for the blend polymer electrolyte film with m(VDF-HFP)∶ m(PMMA)=1∶1 was measured as 0.804×10^-3S/cm at 30 ℃ by using electrochemical impedance method. Compared with other approaches the method introduced here is a very easy, cost-saving, and more environmental friendly method.

Key words: Li ion batteries, Polymer electrolytes, P(VDF-HFP), PMMA

CLC Number:

O641

TrendMD:

ZHAO Yi, WANG Tao, XU Fan, JIANG Zhi-Yu . Preparation of P(VDF-HFP)/PMMA Blend Polymer Electrolyte Membrane with Water as Material for Phase Separation and Pore Producer[J]. Chem. J. Chinese Universities, 2004, 25(5): 922.

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Preparation of P(VDF-HFP)/PMMA Blend Polymer Electrolyte Membrane with Water as Material for Phase Separation and Pore Producer

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