BATTERY MODULE

A battery module includes: a plurality of battery cells stacked in a Y axis direction; a cover body that covers the plurality of battery cells in a Z axis direction; and a duct. The duct has: a cylindrical portion to which a hose can be fitted, the cylindrical portion extending, in the Y axis direction in a form of in a cylinder, from one end portion of a duct main body portion in the Y axis direction so as to have a tip with an opening; and a projection with which an end portion of the hose can be brought into abutment, the projection protruding from an outer peripheral surface of the cylindrical portion at a position away from the opening of the cylindrical portion in the Y axis direction. The cover body has an anchoring portion anchored to the projection in the Z axis direction.