| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily distinguish front side and back side of a membrane electrode assembly, and comprehend composition of an electrode part non-destructively and precisely. <P>SOLUTION: The membrane electrode assembly for a solid polymer electrolyte fuel cell is formed by jointing a catalyst layer for an anode on one face of the polymer electrolyte membrane and a catalyst layer for a cathode on the opposite face. The area of the catalyst for the anode layer and that for the cathode layer are smaller than that of the polymer electrolyte fuel cell. The identification mark made of a material having the same composition as that of the catalyst layers jointed to the face is formed on an edge area where the anode catalyst layer and the cathode catalyst layer are not jointed, so as to make it possible to identify anode side and cathode side. <P>COPYRIGHT: (C)2007,JPO&INPIT |
