MEMBRANE-ELECTRODE ASSEMBLY FOR SOLID POLYMER ELECTROLYTE FUEL CELL

PROBLEM TO BE SOLVED: To provide a membrane-electrode assembly for a solid polymer electrolyte fuel cell that has a proton conductive membrane having high proton conductivity, suppressed swelling in a hot water and reduced shrinkage in drying, achieves high dimensional stability and mechanical stren...

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Bibliographische Detailangaben
1. Verfasser:	IGUCHI MASARU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a membrane-electrode assembly for a solid polymer electrolyte fuel cell that has a proton conductive membrane having high proton conductivity, suppressed swelling in a hot water and reduced shrinkage in drying, achieves high dimensional stability and mechanical strength and is excellent in heat resistance and durability.SOLUTION: In a membrane-electrode assembly for a polymer electrolyte fuel cell provided with an anode electrode provided on one face of a proton conductive membrane and a cathode electrode on the other face, the proton conductive membrane contains a sulfonated polyarylene which has a polymer segment having a sulfonic acid group (A) and a polymer segment having substantially no sulfonic acid group (B), wherein the polymer segment (B) has a specified structural unit.