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Title:
GAS DIFFUSION ELECTRODE FOR FUEL CELL
Document Type and Number:
Japanese Patent JP2004234954
Kind Code:
A
Abstract:

To provide a gas diffusion electrode material for a fuel cell improving cell characteristics on the high current-density side, and enhancing overall cell characteristics.

The gas diffusion electrode for the fuel cell comprises a carbon fiber sheet and a thin membrane formed on one side of the carbon fiber sheet and mainly comprising a mixture of carbon fine particles and fluorocarbon resin, the thin membrane has a groove connecting both surfaces of the thin membrane, and an occupied area ratio to the thin membrane surface of the groove is set to 3-15%.


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Inventors:
SHIMAZAKI KENJI
TANAKA SHINTARO
UEDA KIMISUKE
Application Number:
JP2003020465A
Publication Date:
August 19, 2004
Filing Date:
January 29, 2003
Export Citation:
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Assignee:
TOHO TENAX CO LTD
International Classes:
H01M4/96; (IPC1-7): H01M4/96
Domestic Patent References:
JPH10261421A1998-09-29
JPH09245801A1997-09-19
JP2001216973A2001-08-10
JP2003017071A2003-01-17
JP2001057217A2001-02-27
JP2004164903A2004-06-10
Attorney, Agent or Firm:
Yasuyo Takahata



 
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