MEA-gasket assembly and polymer electrolyte fuel cell using...

Details MEA-gasket assembly and polymer electrolyte fuel cell using... MEA-gasket assembly and polymer electrolyte fuel cell using...

2005-10-06

2010-12-14

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

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

Grouping of fuel cells into stack or module

C429S452000, C429S458000, C429S460000, C429S457000

Reexamination Certificate

active

07851100

ABSTRACT:
The invention provides an MEA-gasket assembly (1) comprising: an MEA (5) having a polymer electrolyte membrane (5A), catalyst layers and gas diffusing layers (5C); a plate-like frame (6) which is joined to a portion of the polymer electrolyte membrane (5A) so as to enclose the MEA (5), the portion being located in a peripheral region of the MEA (5) and which has a plurality of fluid manifold holes (12, 13, 14); and an annular gasket (7) formed on both faces of the frame (6), wherein an annular gap formed between the inner peripheral edge of the annular gasket (7) and the outer peripheral edges of the gas diffusing layers (5C) is at least partially closed.

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Machine translation of Chisawa et al (JP11-204122).

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