| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell with improved output maintenance performance. <P>SOLUTION: The fuel cell is provided with a cathode 7 including a cathode catalyst layer 5, an anode 4 including an anode diffusion layer 3 and an anode catalyst layer 2 laminated on the anode diffusion layer 3, and an electrolyte membrane 8 interposed between the cathode catalyst layer 5 and the anode catalyst layer 2. The anode catalyst layer 2 is composed so that grooves 10 are formed in the surface facing the anode diffusion layer 3 at an area ratio of ≥5% and ≤30%. <P>COPYRIGHT: (C)2009,JPO&INPIT |
