Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-12-11
2010-11-23
Tucker, Philip C (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S249000, C156S278000, C156S279000, C156S280000, C156S307100, C156S307300, C156S308200, C156S309600, C156S345420, C429S010000, C429S047000, C429S047000
Reexamination Certificate
active
07837819
ABSTRACT:
The present invention provides a method of manufacturing a membrane-electrode assembly for a fuel cell, in which a binder is spray-coated on a surface of a polymer film, a catalyst slurry is bar-coated on a surface of an electrolyte membrane, bonded on the binder, to form a catalyst electrode layer, a bonded assembly of the electrolyte membrane and the catalyst electrode layer is separated from the polymer film, after a drying process, to obtain a 2-layer MEA, and the thus obtained 2-layer MEAs are used to form a 3-layer MEA or a 5-layer MEA by a hot pressing process. Accordingly, the present methods solve the problems associated with prior art that the loss of catalyst is considerable, since the catalyst slurry is directly spray-coated on the membrane, and the catalyst electrode layer in a solid phase is hot-pressed on both surfaces of the membrane.
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English Abstract of JP 2009-272136.
English Abstract of JP 2004-186143.
Kim Young Soo
Lee Ki Sub
Chan Sing P
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Hyundai Motor Company
Tucker Philip C
LandOfFree
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