Fuel cell separator member and fuel cell stack

A fuel cell stack comprising a stack body comprising a plurality of stacked power generation cells each including a membrane electrode assembly and a fuel cell separator member provided on each of both sides of the membrane electrode assembly, wherein:

• the fuel cell separator member includes a metal separator stacked on the membrane electrode assembly in a stacking direction, a tightening load in the stacking direction being applied to the metal separator;
• a seal bead protruding from a surface of the metal separator where the membrane electrode assembly is positioned is formed on the metal separator;
• the seal bead is pressed against a resin frame provided on an outer peripheral side of a power generation surface of the membrane electrode assembly by the tightening load to prevent leakage of fluid comprising a reactant gas or a coolant;
• the fuel cell separator member further includes a pressure receiving member provided on the surface of the metal separator, separately from the metal separator and configured to receive an impact load in the stacking direction;
• the pressure receiving member is provided along the seal bead;
• and
• a height of the pressure receiving member in the stacking direction is lower than a height of the seal bead in the stacking direction in a state where the tightening load is applied and the impact load is not applied.