| 摘要 |
PROBLEM TO BE SOLVED: To easily and reliably suppress deterioration of an electrolyte membrane corresponding to an endmost part in the gravity direction within a reaction gas passage, thereby improving durability of the electrolyte membrane.SOLUTION: A fuel cell 10 holds a solid polymer electrolyte membrane 24 with a cathode side separator 14 and an anode side separator 16. An oxidant gas passage constituting the fuel cell 10 includes a plurality of undulating passage parts 30a extending in a horizontal direction in an undulating form. Among the undulating passage parts 30a, a part of an undulating passage part 30ae1 disposed at the lowermost end in the gravity direction protrudes downward in the gravity direction from planar regions of electrode catalyst layers 26b, 28b, more specifically from a power generation region GF. |
