ELECTROLYTE MEMBRANE FOR SOLID HIGH POLYMER FUEL CELL AND ITS MANUFACTURING METHOD

Japanese Patent JP3922954

B2

PROBLEM TO BE SOLVED: To provide an electrolyte membrane for a solid high polymer fuel cell with superior mechanical strength and power generating characteristic, and its manufacturing method.
SOLUTION: The electrolyte membrane for the solid high polymer fuel cell is reinforced by a fluorine fiber sheet formed by coupling pieces of fluorine fiber, and it is a cation exchange membrane with a thickness of 5-95 μm comprising perfluorocarbon-based ion exchange resin having a sulfonic acid group. The manufacturing method of the electrolyte membrane for the solid high polymer fuel cell has a papermaking process of obtaining a fluorine fiber paper sheet by subjecting the fluorine fiber to wet type papermaking, a heating process of obtaining a fluorine fiber sheet by heating the fluorine fiber paper sheet and thermally fusing the pieces of fiber, and an integrating process of integrating the perfluorocarbon-based ion exchange resin having the sulfonic acid group with the fluorine fiber sheet.

JP5113408	Solid electrolyte film and its manufacturing method, manufacturing equipment, electrode membrane composite for fuel cell, and fuel cell
WO/2003/067691	POLYMER ELECTROLYTE MEMBRANES FOR USE IN FUEL CELLS

Masao Sudo
Keiichi Okajima
Ippei Osaki
Takanori Suzuki
Tsuda Tsuda

JP2002096854A

May 30, 2007

March 29, 2002

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Masao Sudo
Tomagawa Paper Mill Co., Ltd.

C08J5/22; H01M8/02; D21H13/12; H01B1/06; H01M8/10; (IPC1-7): H01M8/02; C08J5/22; H01B1/06; H01M8/10; //C08L27:12

JP6342666A
JP2001345111A
JP2001035508A
JP63037134A
JP3097993A

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama

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