| 摘要 |
PROBLEM TO BE SOLVED: To prevent increase of contact resistance on the surface of a metal separator. SOLUTION: Electrodes 14a, 14b have a plurality of hard particles 18 bonded on the surface on the side of metal separators 16a, 16b. Each of the hard particles 18 has sufficient conductivity and superior anticorrosiveness, which is formed to be sharp at one side and to be smooth at the other side, the sharp side and the smooth side being directed to the side of the metal separator and to the side of the electrode, respectively. When a fuel cell is mounted in a vehicle, if a vehicle body is vibrated, a relative slide in the direction of an arrowmark B occurs between each of the metal separators 16a, 16b and each of the electrodes 14a, 14b, whereby the hard particles 18 in areas contacting protruded portions of the metal separators 16a, 16b are slid on the protruded portions of the separators 16a, 16b to shave an oxidized coating formed on the surface. |
