BATTERY CELL LIQUID COOLED PLATE, BATTERY THERMAL MANAGEMENT SYSTEM, ELECTRIC VEHICLE AND DESIGN METHOD

Disclosed in the present invention are a battery cell liquid cooled plate, a battery thermal management system, an electric vehicle and a design method, belonging to the technical field of new energy vehicles. The battery cell liquid cooled plate comprises a liquid cooled base plate having a side surface in the shape of an inverted trapezoid; a water outlet and a water inlet are symmetrically formed in the two ends of the side surface of the liquid cooled base plate, respectively; flow channel rib structures which are structurally identical and communicate with one another are symmetrically provided on the two sides of the liquid cooled base plate between the water outlet and the water inlet; and the water outlet and the water inlet communicate with the flow channel rib structures via internal flow channels of the liquid cooled base plate. In the present invention, arranging the flow channel rib structures on the two sides of the base plate respectively makes the heat dissipation performance of the liquid coo