Battery module

A battery module includes a plurality of battery cells arranged in one direction and electrically connected to one another, the plurality of battery cells each having a current collecting terminal on a top surface thereof, and a terminal plate positioned on the current collecting terminal of one of the battery cells. The terminal plate is in a form of a sideways-oriented U-shape, including a first surface that contacts the current collecting terminal, a second surface that is parallel to the first surface and spaced apart from the first surface by a predetermined distance, and a third surface connecting the first surface and the second surface, the first surface including a first hole and the second surface including a second hole, the first hole and the second hole having different shapes.