POLYMER ELECTROLYTE FUEL CELL AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a polymer electrolyte fuel cell with high durability and high performance by preventing a short circuit between gas diffusion layers and to provide a method for manufacturing the fuel cell in high reliability. SOLUTION: In at least one electrode of a positive electro...

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Bibliographische Detailangaben
Hauptverfasser:	UCHIDA MAKOTO, KOSAKO SHINYA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polymer electrolyte fuel cell with high durability and high performance by preventing a short circuit between gas diffusion layers and to provide a method for manufacturing the fuel cell in high reliability. SOLUTION: In at least one electrode of a positive electrode and a negative electrode, an insulating layer is formed in a projecting part existing on the surface of a gas diffusion layer facing a polymer electrolyte membrane. The insulating layer is preferable to contain an inorganic insulating material and polymerizable resin. The insulating layer is formed by a method transferring the insulating layer previously formed on a support to the gas diffusion layer or a method applying a coating material containing an insulating material to the projecting part and drying or curing the applied material. COPYRIGHT: (C)2004,JPO