| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a separator for a fuel cell of high precision in which there is no local physical property non-attainment caused by uneven density by achieving homogeneity of volume per unit area of a separator flat face. <P>SOLUTION: By integrating a plate 23 in which a cathode flow passage 6 is formed on one face and a cooling water passage 12 is formed on the other face, and a plate 14 with one side groove in which an anode flow passage 5 is formed on only one face with a flat face of the plate 14 with a cooling water passage of the plate 23 with both side grooves and the flat face of the plate 14 with one side groove as an adhesive face, the separator for the fuel cell is constituted. At parts in which the cathode gas flow passage 6 positioned at the both side parts of a face in which the cathode gas flow passage 6 of this plate 23 with the both face grooves is not formed, an extra groove 20 to make the volume per unit area of the part closer to an inside reaction part in which the cathode gas flow passage 6 has been formed is formed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
