Fuel cell stack

A fuel cell stack comprising:

• a cell part comprising a plurality of fuel cells stacked in a stacking direction, wherein each of the fuel cells comprises:
• a support frame supporting a membrane electrode and gas diffusion layer assembly;
• and a first separator and a second separator interposing the support frame therebetween in the stacking direction;
• and
• a sealing plate facing one of opposing end surfaces of the cell part in the stacking direction,
• wherein
• each of the fuel cells further comprises a plurality of through holes that form manifolds in the cell part, and the manifolds are configured to allow a fuel gas, an oxidation gas, and a cooling medium to flow therein,
• when viewed in the stacking direction, the sealing plate is devoid of through holes in its area that overlaps the manifolds in the cell part,
• the sealing plate comprises a substrate, and
• at least one of a plurality of first separators and a plurality of second separators comprises the same substrate except for presence of the plurality of through holes.