| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure excellent power generation performance by preventing damage on a solid polymer electrolyte membrane as much as possible with an easy and simple configuration. <P>SOLUTION: An electrolyte membrane/electrode structure 12 configuring a fuel cell 10 includes a cathode electrode 20 and an anode electrode 22 arranged on both surfaces of a solid polymer electrolyte membrane 18. The cathode electrode 20 is provided with a first catalyst layer 20a and a first gas diffusion layer 20b, and the anode electrode 22 is provided with a second catalyst layer 22a and a second gas diffusion layer 22b. The plane of the first gas diffusion layer 20b has dimensions set larger than those of the plane of the second gas diffusion layer 22b, and set equal to those of the plane of the solid polymer electrolyte membrane 18. The first catalyst layer 20a is provided over the entire outer peripheral edge of the first gas diffusion layer 20b while including a part corresponding to a buffer part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
