| 摘要 |
PROBLEM TO BE SOLVED: To block erroneous assembling of a fuel cell easily and reliably with a simple configuration.SOLUTION: A fuel cell stack 10 includes an insulator 102b arranged at one end of a power generation unit 12 in the lamination direction. On the surface of the insulator 102b in contact with a second metal separator 18, an inlet side back receiving part 120a corresponding to a linear protrusion 52ag composing the inlet buffer of the second metal separator 18, and an outlet side back receiving part 120b corresponding to a linear protrusion 52bg composing the outlet buffer of the second metal separator 18 are provided. The linear protrusions 52ag and 52bg are configured in non-point symmetry. |
