SOLID POLYMER ELECTROLYTE TYPE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME

Title:

SOLID POLYMER ELECTROLYTE TYPE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/2001/006587

Kind Code:

A1

Abstract:

A solid polymer electrolyte type fuel cell having, as an electrolyte, a cation exchange film comprising a perfluorocarbon polymer having a sulfonic acid groupe, characterized in that the cation exchange film has been subjected to a stretching treatment, and preferably has a film area which has been increased by 5 to 10% based on its original area through the stretching treatment. The cation exchange film having been subjected to such a stretching treatment is free from wrinkles caused by elongation even when used under conditions wherein humidity is prone to changes, which results in the manufacture of a solid polymer electrolyte type fuel cell having a high output and excellent durability.

Inventors:

HIGUCHI YOSHIAKI (JP)
TERADA ICHIRO (JP)
SHIMOHIRA TETSUJI (JP)
HOMMURA SATORU (JP)

Application Number:

PCT/JP2000/004853

Publication Date:

January 25, 2001

Filing Date:

July 19, 2000

Export Citation:

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Assignee:

ASAHI GLASS CO LTD (JP)
HIGUCHI YOSHIAKI (JP)
TERADA ICHIRO (JP)
SHIMOHIRA TETSUJI (JP)
HOMMURA SATORU (JP)

International Classes:

C08J5/22; C08F14/26; C08L27/18; H01B1/06; H01M8/02; H01M8/10; H01M4/86; H01M4/92; (IPC1-7): H01M8/02; H01M8/10

Foreign References:

JPH06231779A	1994-08-19
JPH1145729A	1999-02-16
JPS58119348A	1983-07-15
JPS58201823A	1983-11-24
EP0086596A1	1983-08-24

Other References: