Battery cell

A battery cell, comprising:

• a membrane electrode assembly;
• a cathode bipolar plate, stacked on a side of the membrane electrode assembly;
• and
• an anode bipolar plate, comprising a metal layer and a thermally conductive layer, wherein the metal layer is stacked on a side of the membrane electrode assembly that is located farthest away from the cathode bipolar plate, the metal layer has a bottom surface, a top surface, a first side surface and a second side surface, the bottom surface and the top surface face away from each other, the first side surface and the second side surface face away from each other, the first side surface and the second side surface connect the bottom surface and the top surface and are located between the bottom surface and the top surface, the bottom surface faces the membrane electrode assembly, the thermally conductive layer comprises a first cover layer and two second cover layers, the first cover layer covers the top surface of the metal layer, the two second cover layers protrude from two opposite sides of the first cover layer, respectively, and the two second cover layers at least partially cover the first side surface and the second side surface of the metal layer, respectively;
• wherein a thermal conductivity of the thermally conductive layer is higher than a thermal conductivity of the metal layer;
• and
• wherein the two second cover layers stick out of the membrane electrode assembly along a horizontal direction perpendicular to a stacking direction along which the membrane electrode assembly, the cathode bipolar plate and the anode bipolar plate are stacked.