ELECTROLYTE MEMBRANE/ELECTRODE UNION FOR FUEL CELL AND PROCESS FOR PRODUCING THE SAME

Title:

ELECTROLYTE MEMBRANE/ELECTRODE UNION FOR FUEL CELL AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2003/081707

Kind Code:

A1

Abstract:

An electrolyte membrane/electrode union for fuel cell, comprising a polymeric electrolyte membrane and a pair of electrodes having the electrolyte membrane interposed therebetween, each of the electrodes comprising a catalyst layer in contact with the polymeric electrolyte membrane and a gas diffusion layer in contact with the catalyst layer, wherein in a zone of polymeric electrolyte membrane interposed between the electrodes there are electron insulating particles as a spacer for separating the gas diffusion layers of the two electrodes from each other. The two electrodes are securely separated from each other by means of the polymeric electrolyte membrane, so that a polymer type fuel cell of low internal resistance and large effective reaction area can be obtained.

Inventors:

KOSAKO SHINYA (JP)
UCHIDA MAKOTO (JP)

Application Number:

PCT/JP2003/003479

Publication Date:

October 02, 2003

Filing Date:

March 20, 2003

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
KOSAKO SHINYA (JP)
UCHIDA MAKOTO (JP)

International Classes:

H01M4/86; H01M4/88; H01M4/92; H01M4/96; H01M8/10; (IPC1-7): H01M8/02; H01M8/10

Domestic Patent References:

WO1995032236A1

1995-11-30

Foreign References:

JP2000294260A	2000-10-20
JP2003059511A	2003-02-28

Other References: