| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a membrane electrode composite having improved durability by using a simple method of preventing the degradation of durability resulting from reaction between hydrogen cross-leaking from an anode to a cathode and oxygen (air) cross-leaking from the cathode at both the electrodes, while preventing the breakage of a membrane resulting from exothermic reaction (combustion) of cross-leaking gases on a catalyst. <P>SOLUTION: The membrane electrode composite for a polymer electrolyte fuel cell includes the anode and the cathode arranged with at least a polymer electrolyte membrane therebetween. The anode and the cathode each contain a catalyst layer, a conductive layer, and a collector layer in sequence from the polymer electrolyte membrane. At least one of the collector layer and the conductive layer covers the catalyst layer and contacts the polymer electrolyte membrane. <P>COPYRIGHT: (C)2009,JPO&INPIT |
