US Patent No: 6,455,109

Number of patents in Portfolio can not be more than 2000

Electrode for fuel cell and method of producing the same

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of producing an electrode having a high performance in a simple and convenient manner which does not require the use of any of the medium, surfactant and pore-producing agent is disclosed. In the disclosed method, a layer including a catalyst powder is formed on a surface of a polymer electrolyte film or a porous conductive electrode substrate by supplying an electrostatically-charged catalyst powder to the polymer electrolyte film or the porous conductive electrode substrate. Alternatively, a layer including a catalyst powder is formed on a surface of a polymer electrolyte film or a porous conductive electrode substrate by spraying the catalyst powder on the surface of the polymer electrolyte film or the porous conductive electrode substrate together with a carrier gas, thereby to cause the catalyst powder to adhere to the surface.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.OSAKA11689

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funakoshi, Yasutomo Sakai, JP 9 92
Gyoten, Hisaaki Shijonawate, JP 57 417
Matsumoto, Toshihiro Ibaraki, JP 116 663
Nakagawa, Kouji Osaka, JP 7 62
Sugawara, Yasushi Neyagawa, JP 66 420
Uchida, Makoto Hirakata, JP 109 852
Yasumoto, Eiichi Katano, JP 70 484

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 5,542,163 Electrically-conducting adhesion-promoter 14 1994
 
THE DOW CHEMICAL COMPANY (2)
* 5,171,644 Electrochemical cell electrode 26 1991
* 5,151,515 Oxygen reduction catalyst based upon metal dipyridylamines 12 1991
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
* 4,489,122 Transparencies for electrostatic printing 18 1982
 
The United States of America as represented by the Secretary of the Army (1)
* 5,372,896 Treated solid polymer electrolyte membrane for use in a fuel cell and fuel cell including the treated solid polymer electrolyte membrane 18 1993
 
Deutsche Forschungsanstalt fur Luft-und Raumfahrt e.V. (1)
* 5,738,905 Process for the production of a composite comprising electrode material, catalyst material and a solid-electrolyte membrane 15 1996
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
* 5,316,871 Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby 116 1993
 
UNITED TECHNOLOGIES CORPORATION (2)
* 4,272,353 Method of making solid polymer electrolyte catalytic electrodes and electrodes made thereby 72 1980
* 4,313,972 Dry method for making an electrochemical cell electrode 46 1980
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2005/0043,628 Backing material for micromachined ultrasonic transducer devices 2 2004
 
BALLARD POWER SYSTEMS INC. (1)
* 2006/0045,985 Method and apparatus for electrostatically coating an ion-exchange membrane or fluid diffusion layer with a catalyst layer 12 2004
 
ROHM AND HAAS COMPANY (1)
7,419,745 Method of forming an electrode structure useful in energy storage devices 5 2005
 
GEORGIA TECH RESEARCH CORPORATION (4)
* 2007/0089,496 THREE-DIMENSIONAL NANOSCALE METROLOGY USING FIRAT PROBE 11 2006
* 2011/0170,108 Fast Microscale Actuators for Probe Microscopy 10 2007
7,752,898 Devices for probe microscopy 0 2007
* 2008/0168,830 Devices for Probe Microscopy 1 2007
* Cited By Examiner