Process for producing membrane-electrode assembly for...

Details Process for producing membrane-electrode assembly for... Process for producing membrane-electrode assembly for...

2008-08-01

2010-12-28

Tucker, Philip C (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S090000, C156S152000, C156S182000, C156S278000

Reexamination Certificate

active

07857935

ABSTRACT:
To provide a process for producing a membrane-electrode assembly for polymer electrolyte fuel cells, which has a high output voltage in a wide range of current densities and is excellent in durability against a humidity change.With respect to the process for producing a membrane-electrode assembly10comprising a first electrode20comprising a catalyst layer12and a gas diffusion layer14, a second electrode30comprising a catalyst layer12and a gas diffusion layer14and the polymer electrolyte membrane40disposed between the catalyst layers12of the respective electrodes, the catalyst layer12is formed in such a manner that after forming a coating solution layer by applying a coating solution containing an electrode catalyst and an ion exchange resin on a substrate film, the gas diffusion layer14is put on the coating solution layer, and then, the coating solution layer is dried in such a state.

REFERENCES:
patent: 5186877 (1993-02-01), Watanabe
patent: 5409785 (1995-04-01), Nakano et al.
patent: 7091149 (2006-08-01), Iwasaki et al.
patent: 2002/0144394 (2002-10-01), Uchida et al.
patent: 2007/0015041 (2007-01-01), Kawai et al.
patent: 4-162365 (1992-06-01), None
patent: WO 02/05371 (2002-01-01), None

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