BATTERY MODULE, AND BATTERY CELL LIQUID-COOLING METHOD

Provided are a battery module and a liquid cooling method for cells. The battery module includes cells (1) and a housing (2). An empty cavity (21) is formed within the housing (2). Multiple cells (1) arranged in parallel are placed within the empty cavity (21). The empty cavity is filled with a cooling liquid. A bottom surface of the housing (2) and a top surface of the housing (2) are respectively provided with a first flow channel (5) and a second flow channel (4). Each of the first flow channel (5) and the second flow channel (4) communicates with the empty cavity (21) to inject the cooling liquid into the empty cavity (21).