Bipolar plate structure and electric pile

The invention discloses a bipolar plate structure and an electric pile, and belongs to the technical field of fuel cells. The bipolar plate structure comprises a bipolar plate body, one end of the bipolar plate body is provided with a reaction gas inlet and a cooling liquid inlet, the other end of the bipolar plate body is provided with a reaction gas outlet and a cooling liquid outlet, and the middle of the bipolar plate body is provided with a flow channel communicated with the reaction gas inlet and the reaction gas outlet. The flow channel comprises two groups of first flow guide structures arranged on the side wall of the flow channel, and each first flow guide structure comprises a trapezoidal groove structure and a triangular bulge structure which are alternately connected along the gas flow direction; and the triangular bulge structure of one group of first flow guide structures faces the trapezoidal groove structure of the other group of first flow guide structures. The gas retention time can be prol