The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2010
Filed:
Aug. 01, 2008
Hiroshi Shimoda, Tokyo, JP;
Hirokazu Wakabayashi, Tokyo, JP;
Hiroshi Shimoda, Tokyo, JP;
Hirokazu Wakabayashi, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
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 assemblycomprising a first electrodecomprising a catalyst layerand a gas diffusion layer, a second electrodecomprising a catalyst layerand a gas diffusion layerand the polymer electrolyte membranedisposed between the catalyst layersof the respective electrodes, the catalyst layeris 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 layeris put on the coating solution layer, and then, the coating solution layer is dried in such a state.