MEMBRANE ELECTRODE ASSEMBLY, ITS MANUFACTURING METHOD, AND FUEL BATTERY CELL

摘要

PROBLEM TO BE SOLVED: To provide a membrane electrode assembly which is chemically and mechanically stable under a use condition as a fuel cell and a hydrogen generation device and is applicable suitably for a medium temperature type fuel cell, and its manufacturing method, and a fuel battery cell using the same.

SOLUTION: The membrane electrode assembly (11) used in the fuel battery cell (10) has a hydrogen permeable metal foil (12) with a thickness of 1 μm or more and having self-supporting performance and an amorphous inorganic solid electrolyte membrane (13) having hydrogen ion conductivity, and is manufactured by a method which has, for example, a process to prepare a reaction liquid containing a precursor of a solid electrolyte membrane and a process in which the reaction liquid is coated on the surface of the hydrogen permeable metal foil, and the precursor is reacted while heat treating at 100-600°C and the inorganic solid electrolyte membrane (13) is formed.

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