Membrane-electrode assembly for solid polymer electrolyte...

Details Membrane-electrode assembly for solid polymer electrolyte... Membrane-electrode assembly for solid polymer electrolyte...

2006-06-06

2010-10-19

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Fuel cell with solid electrolyte

C429S491000, C429S492000

Reexamination Certificate

active

07816053

ABSTRACT:
A membrane-electrode assembly having superior hot water resistance has a membrane containing an aromatic polymer having a repeating unit expressed by general formula (1):in which A represents independently either —CO— or —SO2—; B represents independently an oxygen atom or sulfur atom; R1to R8, which may be identical or different from each other, represent a hydrogen atom, fluorine atom, alkyl group, phenyl group or nitrile group; R9to R24, which may be identical or different from each other, represent a hydrogen atom, alkyl group or phenyl group; and ‘a’ represents an integer of 0 to 4.

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