ELECTROLYTE MATERIAL, AND PROTON CONDUCTIVE ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To produce a proton conductive electrolyte membrane with high ion conductivity, excellent water resistance, a small change in size, and flexibility; and to provide a polymer electrolyte fuel cell which has high output and durability.

SOLUTION: An electrolyte material is used which contains a copolymer including a polyvinyl as a main chain, the copolymer including a functional group with proton conductivity; and an alkoxide of Si or Ti as a side chain.

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