US Patent 7892695 Fuel cell stack

In order to enable a fuel cell stack to be easily disassembled into a bundle of a plurality of cells and simultaneously to be handled while considering a unit cell as a unit, the fuel cell stack has a unit cell formed of an MEA and two facing separators which sandwich the MEA, and an adhesive layer for sealing a gap between the separators in the unit cell, and gaskets for sealing a gap between the unit cells, wherein each tacking force of the adhesive layer, and each gasket are different from each other depending on the position in a stacked direction of the unit cell.