| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high cooling medium function in simple construction by surely preventing the remaining of air in a cooling medium passage. <P>SOLUTION: A fuel cell 10 is equipped with an electrolyte membrane/electrode assembly 12 constituting a step MEA and a metallic separator 13. The metallic separator 13 has first and second metal plates 14, 16, an oxidant gas passage 32 is formed in the first metal plate 14, and a fuel gas passage 52 is formed in the second metal separator 16. A linear seal 76 and a lining projecting part 78 are installed on the surface 16b which is the cooling surface of the second metal plate 16, and an air vent passage 80 is formed between the linear seal 76 and the projecting part 78 on the upper side of the second metal plate 16. A cutout part 82 is installed in an upstream region of a cross passage in a cooling medium passage 42 in the projecting part 78. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
