INK COMPOSITION FOR GAS DIFFUSION LAYER

PROBLEM TO BE SOLVED: To provide an ink composition for gas diffusion, capable of being simplified in manufacturing processes, reducing an environmental load, hardly blocked in gas diffusion property, and also adaptable to a load environment set for a battery.SOLUTION: In a solid polymer fuel cell i...

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Bibliographische Detailangaben
1. Verfasser:	TOYAMA YASUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES 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 USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an ink composition for gas diffusion, capable of being simplified in manufacturing processes, reducing an environmental load, hardly blocked in gas diffusion property, and also adaptable to a load environment set for a battery.SOLUTION: In a solid polymer fuel cell including a catalyst layer provided on both surfaces of a polymer electrolyte membrane and a gas diffusion layer provided on other surface side of the catalyst layer, the gas diffusion layer comprises a coating layer which includes a conductive porous base material with gas diffusion ability and conductivity and conductive particles, and an ink for a gas diffusion layer is coated on the conductive porous base material. The ink contains the conductive particles obtained by mixing first carbon particles, which have a center diameter 1/10 or larger than an average pore diameter of the conductive porous base material, with second carbon particles, which have a center diameter 1/3 or smaller than that of the first carbon particles, at a mixture ratio M1/M2 of 95/5-70/30.