A battery module includes a cooling plate including a housing, a first manifold coupled to one end of the housing, and a second manifold coupled to another end of the housing; and at least one battery pack arranged on the cooling plate, wherein the housing includes therein a plurality of flow paths and a plurality of hollows passing through the housing from the one end to the other end, and the plurality of flow paths and the plurality of hollows are arranged alternately and in parallel to each other.