Electrode for fuel cell and method of producing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6455109
SERIAL NO

09280996

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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.OSAKA11035

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 57 448
Matsumoto, Toshihiro Ibaraki, JP 116 724
Nakagawa, Kouji Osaka, JP 7 64
Sugawara, Yasushi Neyagawa, JP 66 451
Uchida, Makoto Hirakata, JP 111 915
Yasumoto, Eiichi Katano, JP 70 516

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 5542163 Electrically-conducting adhesion-promoter 16 1994
 
THE DOW CHEMICAL COMPANY (2)
* 5171644 Electrochemical cell electrode 26 1991
* 5151515 Oxygen reduction catalyst based upon metal dipyridylamines 12 1991
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
* 4489122 Transparencies for electrostatic printing 18 1982
 
The United States of America as represented by the Secretary of the Army (1)
* 5372896 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 FUER LUFT- UND RAUMFAHRT E.V. (1)
* 5738905 Process for the production of a composite comprising electrode material, catalyst material and a solid-electrolyte membrane 17 1996
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
* 5316871 Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby 116 1993
 
UNITED TECHNOLOGIES CORPORATION (2)
* 4272353 Method of making solid polymer electrolyte catalytic electrodes and electrodes made thereby 73 1980
* 4313972 Dry method for making an electrochemical cell electrode 47 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 14 2004
 
ROHM AND HAAS COMPANY (1)
7419745 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 12 2006
* 2011/0170,108 Fast Microscale Actuators for Probe Microscopy 11 2007
7752898 Devices for probe microscopy 0 2007
* 2008/0168,830 Devices for Probe Microscopy 1 2007
* Cited By Examiner