Electrode for fuel cell and method of producing the same
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United States of America Patent
Stats
-
Sep 24, 2002
Grant Date -
N/A
app pub date -
Mar 30, 1999
filing date -
Mar 31, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | Total Patents |
---|---|---|
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. | OSAKA | 10861 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Funakoshi, Yasutomo | Sakai, JP | 9 | 92 |
Gyoten, Hisaaki | Shijonawate, JP | 57 | 474 |
Matsumoto, Toshihiro | Ibaraki, JP | 121 | 803 |
Nakagawa, Kouji | Osaka, JP | 7 | 65 |
Sugawara, Yasushi | Neyagawa, JP | 66 | 471 |
Uchida, Makoto | Hirakata, JP | 116 | 968 |
Yasumoto, Eiichi | Katano, JP | 70 | 549 |
Cited Art Landscape
Patent Info | (Count) | # Cites | Year |
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* 5542163 Electrically-conducting adhesion-promoter | 17 | 1994 | |
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* 5171644 Electrochemical cell electrode | 27 | 1991 | |
* 5151515 Oxygen reduction catalyst based upon metal dipyridylamines | 12 | 1991 | |
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* 4489122 Transparencies for electrostatic printing | 18 | 1982 | |
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* 5372896 Treated solid polymer electrolyte membrane for use in a fuel cell and fuel cell including the treated solid polymer electrolyte membrane | 18 | 1993 | |
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* 5738905 Process for the production of a composite comprising electrode material, catalyst material and a solid-electrolyte membrane | 19 | 1996 | |
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* 5316871 Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby | 116 | 1993 | |
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* 4272353 Method of making solid polymer electrolyte catalytic electrodes and electrodes made thereby | 76 | 1980 | |
* 4313972 Dry method for making an electrochemical cell electrode | 47 | 1980 |
Patent Citation Ranking
Forward Cite Landscape
Patent Info | (Count) | # Cites | Year |
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* 2005/0043,628 Backing material for micromachined ultrasonic transducer devices | 3 | 2004 | |
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* 2006/0045,985 Method and apparatus for electrostatically coating an ion-exchange membrane or fluid diffusion layer with a catalyst layer | 19 | 2004 | |
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7419745 Method of forming an electrode structure useful in energy storage devices | 5 | 2005 | |
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* 2007/0089,496 THREE-DIMENSIONAL NANOSCALE METROLOGY USING FIRAT PROBE | 17 | 2006 | |
* 2011/0170,108 Fast Microscale Actuators for Probe Microscopy | 13 | 2007 | |
7752898 Devices for probe microscopy | 0 | 2007 | |
* 2008/0168,830 Devices for Probe Microscopy | 2 | 2007 |
Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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