Bipolar plate for fuel cells, fuel cell stack having such bipolar plates, and vehicle having such a fuel cell stack

A fuel cell stack, comprising:

• a stack of membrane electrode assemblies and bipolar plates, wherein the membrane electrode assemblies alternate with the bipolar plates, wherein the stack is arranged between two end plates, and wherein each bipolar plate includes:
• an anode plate with an anode side and a coolant side, wherein there is formed on the anode side a first structuring in order to form an anode flow field;
• a cathode plate with a cathode side and a coolant side, wherein there is formed on the cathode side a second structuring to form a cathode flow field;
• and
• structural elements that consist of an elastic material and are arranged between the anode plate and the cathode plate to form a coolant flow field, being contacted by the coolant sides of the anode plate and the cathode plate, wherein the structural elements consist of columns that each have a constant cross-sectional profile over a height thereof between the anode plate and the cathode plate and are arranged at a spacing from each other.

A vehicle comprising a fuel cell stack, the fuel cell stack including:

• a stack of membrane electrode assemblies and bipolar plates, wherein the membrane electrode assemblies alternate with the bipolar plates, wherein the stack is arranged between two end plates, and wherein each bipolar plate includes:
• an anode plate with an anode side and a coolant side, wherein there is formed on the anode side a first structuring in order to form an anode flow field;
• a cathode plate with a cathode side and a coolant side, wherein there is formed on the cathode side a second structuring to form a cathode flow field;
• and
• structural elements that consist of an elastic material and are arranged between the anode plate and the cathode plate to form a coolant flow field, being contacted by the coolant sides of the anode plate and the cathode plate, wherein the structural elements consist of columns that each have a constant cross-sectional profile over a height thereof between the anode plate and the cathode plate and are arranged at a spacing from each other.