| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid polymer electrolyte fuel cell that is less likely to cause voltage drop in a low-current region and is capable of suppressing dissolution of acid ions, by improving a bonding state of catalyst layers 2a and 2b to a polymer ion exchange membrane 3. <P>SOLUTION: In this membrane-electrode assembly, a hydrogen electrode-side catalyst layer 2a and an oxidation electrode-side catalyst 2b are pressed into a polymer ion exchange membrane 3 and brought into partial contact with each other in the polymer ion exchange membrane 3. By pressing-in and partial contact of the catalyst layers 2a and 2b, the catalyst layers 2a and 2b are firmly bonded to the polymer ion exchange membrane 3, and own effective resistance of the polymer ion exchange membrane 3 is also reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
