Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with liquid electrolyte
Reexamination Certificate
2004-06-10
2010-11-09
Michener, Jennifer K. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Fuel cell with liquid electrolyte
C429S532000, C528S030000, C528S035000
Reexamination Certificate
active
07829237
ABSTRACT:
An object of the present invention is to solve the problems with conventional polymer electrolyte fuel cells and provide a proton conducting membrane which exhibits an excellent heat resistance and an excellent protonic conductivity and a high dimensional stability even at high temperatures, a method for producing the same and a fuel cell using the same.The proton conducting membrane of the present invention is a proton conducting membrane having particles 1 comprising a metal-oxygen crosslinked structure and the particles 1 have an acid group such as sulfonic acid group incorporated in the surface thereof and form a continuity. The gap 2 between the particles is communicated from the main surface to the opposite surface of the proton conducting membrane to form a proton conducting channel.
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Miyama Toshihito
Nomura Shigeki
Greenblum & Bernstein P.L.C.
Mekhlin Eli S
Michener Jennifer K.
Sekisui Chemical Co. Ltd.
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