| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a film/electrode structure and its manufacturing method equipped with an adhesive support layer which does not peel off from a solid polymer film even under a high-temperature and high-humidity environment during the operation of a fuel cell. <P>SOLUTION: The solid polymer electrolyte film 2 is pinched by catalyst layers 3, 4 positioned at its inner periphery side with one of its faces coated with the catalyst layers 3, 4 and the adhesive support layer 9. The adhesive support layer 9 is made of an adhesive having fluorine atoms in its molecular structure. The adhesive is endowed with a tensile break elongation of 150% or more after curing. The film is also provided with porous diffusion layers 5, 6 coating the catalyst layers 3, 4 and the adhesive support layer 9, and the adhesive support layer 9 is integrated with the diffusion layer 6 by an adhesive permeation layer 10. Concaves and convexes with maximum heights within a range of 3 to 20 μm are formed at a part coated by the adhesive support layer 9 of the solid polymer electrolyte film 2, and the adhesive support layer 9 is pressed and joined by heating to the part where the concaves and the convexes are formed. <P>COPYRIGHT: (C)2004,JPO |
