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FILM-ELECTRODE ASSEMBLY, FILM-ELECTRODE GAS DIFFUSION LAYER ASSEMBLY HAVING THE SAME, SOLID STATE POLYMER FUEL CELL, AND FILM-ELECTRODE ASSEMBLY MANUFACTURING METHOD
FILM-ELECTRODE ASSEMBLY, FILM-ELECTRODE GAS DIFFUSION LAYER ASSEMBLY HAVING THE SAME, SOLID STATE POLYMER FUEL CELL, AND FILM-ELECTRODE ASSEMBLY MANUFACTURING METHOD
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机译:具有相同的薄膜电极,固态气体扩散膜组件,固态高分子燃料电池以及薄膜电极的制造方法
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摘要
A membrane-electrode assembly 1 having an anode catalyst layer 20 and cathode catalyst layer 30 that are mutually opposing and a polymer electrolyte membrane 10 formed between the anode catalyst layer 20 and cathode catalyst layer 30, wherein the anode catalyst layer 20 is composed of a plurality of ion-exchange layers 20a and 20b with different layer ion-exchange capacities, and of the plurality of ion-exchange layers 20a and 20b, ion-exchange layer A (20a) having the smallest layer ion-exchange capacity is situated more toward the polymer electrolyte membrane 10 side than ion-exchange layer B (20b) having the largest layer ion-exchange capacity, and the ratio of the layer ion-exchange capacity of the ion-exchange layer B (20b) with respect to the layer ion-exchange capacity of the ion-exchange layer A (20a) is 1.7 or greater.
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