Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte
Reexamination Certificate
2011-08-30
2011-08-30
Weiner, Laura S (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Fuel cell with solid electrolyte
C429S480000, C429S479000, C429S492000, C429S491000, C429S523000, C429S534000, C429S535000
Reexamination Certificate
active
08007953
ABSTRACT:
To provide a membrane/electrode assembly for polymer electrolyte fuel cells capable of obtaining a high output voltage even in a high current density region, by providing electrodes having good gas diffusion properties, conductivity, water repellency and durability.A membrane/electrode assembly for polymer electrolyte fuel cells, comprising; an anode and a cathode each having a catalyst layer containing a catalyst and having a gas diffusion layer; and a polymer electrolyte membrane disposed between the catalyst layer of the anode and the catalyst layer of the cathode, characterized in that at least one of the above anode and cathode, has a carbon layer containing a fluorinated ion exchange resin and carbon nanofibers having a fiber diameter of from 1 to 1,000 nm and a fiber length of at most 1,000 μm, disposed between the catalyst layer and the gas diffusion layer.
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Asahi Glass Company Limited
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Panasonic Corporation
Weiner Laura S
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