Electrolyte material, electrolyte membrane and...

Details Electrolyte material, electrolyte membrane and... Electrolyte material, electrolyte membrane and...

2011-03-22

2011-03-22

Mulcahy, Peter D. (Department: 1764)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S314000, C429S317000, C521S025000

Reexamination Certificate

active

07910236

ABSTRACT:
To provide an electrolyte material for polymer electrolyte fuel cells having a high softening temperature and being excellent in durability, and an electrolyte membrane and a process for producing a membrane-electrode assembly using it.An electrolyte material made of a polymer containing a segment A of a polymer containing repeating units based on a perfluoromonomer having an ion exchange group and having a polymerizable double bond, at least one of carbon atoms in the polymerizable double bond being a carbon atom contained in an alicyclic structure, and a segment B of a fluoropolymer containing substantially no ion exchange group, and an electrolyte membrane and a membrane-electrode assembly using it.

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