| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid polymer electrolyte membrane electrode junction body and a solid polymer fuel cell, having excellent dimensional stability and mechanical strength, and having high durability in time of power generation. <P>SOLUTION: This solid polymer electrolyte membrane electrode junction body for the fuel cell comprises: a solid polymer electrolyte membrane 111; and an electrode 137 having catalyst layers 127, 128 including a catalyst disposed on both the faces of the solid polymer electrolyte membrane 111, and gas diffusion layers 133, 134 supporting the catalyst layers 127, 128 inside a peripheral part. The solid polymer electrolyte membrane 111 has: an area 1 having proton electroconductivity in the whole thickness direction of the membrane; and an area 2 positioned in a peripheral part of the area 1, and disposed with a holeless sheet not to have the proton electroconductivity in the whole thickness direction of the film. A portion from the periphery of the catalyst layer 127, 128 to the periphery of the gas diffusion layer 133, 134 is disposed such that it is positioned in the area 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
