PASTE COMPOSITION FOR ELECTRODE CATALYST LAYER FORMATION OF FUEL CELL, CATALYST LAYER-ELECTROLYTE FILM LAMINATE, AND FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a paste composition for forming a catalyst layer having both outstanding conductivity and water repellence, the catalyst layer formed of the paste composition, the catalyst layer-electrolyte film laminate and a fuel cell.

SOLUTION: The paste composition is for use in forming an electrode catalyst layer for fuel cells using a fluid-substance impregnated electrolyte film. The paste composition contains (1) catalyst carrying carbon powder, (2) a non-polymer system fluorine material, (3) hydrogen ion conductivity polymeric materials, and (4) a solvent composed of an alcoholic solvent and cold water. The non-polymer system fluorine material exists in the solvent of the (4) in a dispersed state.

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