Title:
METHOD FOR FORMING REACTION LAYER ON ELECTROLYTE MEMBRANE OF FUEL CELL AND ELECTROLYTE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2004/054019
Kind Code:
A1
Abstract:
A reaction layer which is highly active and has a high utilization efficiency of catalyst can be easily formed on a surface of an electrolyte membrane of a fuel cell at low cost. Reaction layers (10A, 10B) are formed on surfaces of an electrolyte membrane (10) of a fuel cell by electroless plating at low cost. Since the reaction layers (10A, 10B) are formed as uniform thin films, the reaction layers (10A, 10B) have a large catalytically active surface to the catalytic metal amount. Preferably, a reaction layer having a thickness of 0.1-20 μm is formed on a membrane (10) that is a cation-exchange membrane by reducing a platinum complex using sodium borohydride as a reducing agent.
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| JP7386315 | Coating method |
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| JPH07157879 | PLATING METHOD |
Inventors:
SHIRATORI SEIMEI (JP)
ISIKAWA MASAO (JP)
SUGI SHINICHIRO (JP)
IIZUKA MUNENORI (JP)
YOSHIKAWA MASATO (JP)
ISIKAWA MASAO (JP)
SUGI SHINICHIRO (JP)
IIZUKA MUNENORI (JP)
YOSHIKAWA MASATO (JP)
Application Number:
PCT/JP2003/015864
Publication Date:
June 24, 2004
Filing Date:
December 11, 2003
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
SHIRATORI NANOTECHNOLOGY CO (JP)
SHIRATORI SEIMEI (JP)
ISIKAWA MASAO (JP)
SUGI SHINICHIRO (JP)
IIZUKA MUNENORI (JP)
YOSHIKAWA MASATO (JP)
SHIRATORI NANOTECHNOLOGY CO (JP)
SHIRATORI SEIMEI (JP)
ISIKAWA MASAO (JP)
SUGI SHINICHIRO (JP)
IIZUKA MUNENORI (JP)
YOSHIKAWA MASATO (JP)
International Classes:
C23C18/44; H01M4/86; H01M4/88; H01M4/92; H01M8/10; (IPC1-7): H01M4/88; C23C18/22; C23C18/44; H01M8/02; H01M8/10
Foreign References:
| JPS425014B1 | ||||
| JPS5847471B2 | 1983-10-22 | |||
| JPS6092494A | 1985-05-24 | |||
| JPH0987882A | 1997-03-31 | |||
| US4328086A | 1982-05-04 |
Other References:
TAKENAKA HIROYASU: "Kotai kobunshi denkaishitsu eno denkyoku shokubai no setsugo", THE JOURNAL OF THE SURFACE FINISHING SOCIETY OF JAPAN, vol. 46, no. 8, 1995, pages 702 - 706, XP002903738
Attorney, Agent or Firm:
Shigeno, Tsuyoshi (5-10 Shinjuku 2-chom, Shinjuku-ku Tokyo, JP)
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