Method for producing fuel cell

A method for producing a fuel cell, comprising:

• a conveying step of conveying each of a plurality of sheet-like separators by gripping opposite ends of each separator in a longitudinal direction thereof using grippers;
• and
• a seal portion forming step of forming a seal portion by joining a pair of separators together with an adhesive;
• wherein:
• the method uses, as each of the separators, a separator that has a bent portion formed into a peripheral edge thereof, the bent portion having a recess and a projection formed on one surface and another surface, respectively, of the separator,
• the conveying step includes gripping the bent portion at the opposite ends of each separator using the grippers, and
• the seal portion forming step includes disposing the adhesive in the recess of one of the separators and fitting the projection of the other separator in the recess of the one of the separators.