Liquid-cooled battery box

The utility model relates to a liquid-cooled battery box, which comprises a box body, a cooling plate and two shunting pieces, the box body is provided with an opening, the opening of the box body is recessed inwards to form a cavity for placing a battery, the cooling plate is detachably connected with the opening of the box body and is used for opening and closing the cavity, and the two shunting pieces are arranged on the box body. A water inlet cavity, a plurality of water inlet channels, a collecting cavity, a plurality of water outlet channels and a water outlet cavity which are communicated in sequence are formed in the cooling plate, one flow dividing piece is arranged between the water inlet cavity and the water inlet channels, and the other flow dividing piece is arranged between the water outlet cavity and the water outlet channels; the problems that the lengths of a plurality of cooling flow channels in an existing battery liquid cooling box body are different, and the flow speeds of liquid in the