Journal
ELECTROCHIMICA ACTA
Volume 48, Issue 2, Pages 205-209Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0013-4686(02)00603-5
Keywords
polymer electrolytes; P(VDF-HFP); PEO; ionic conductivity
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The polymer electrolytes composed of a blend of poly(ethylene oxide) (PEO) and poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) as a host polymer, mixture of ethylene carbonate (EC) and propylene carbonate (PC) as a plasticizer, and LiClO4 as a salt were prepared by a solution casting technique. SEM micrographs show that P(VDF-HFP) is very compatible with PEO. The ionic conductivity of the electrolytes increases with increasing plasticizer content, while the mechanical properties become obviously worse. By addition of a certain content of PEO in P(VDF-HFP) matrix. a good compromise between high ionic conductivity and mechanical stability can be obtained. (C) 2002 Elsevier Science Ltd. All rights reserved.
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