Abstract: A fuel cell stack (10) with fuel cells (12), a clamping device (16) and a heat insulating device (14), the clamping device (16) having pressure distribution elements (18) and the fuel cells (12) being located between the pressure distribution elements (18). The fuel cell stack (10) is characterized by the fact that the heat insulating device (14) is located between the fuel cells (12) and the clamping device (16).