Battery module, battery pack, and vehicle

Discussed is a battery module in which welding reliability between an electrode lead and a bus bar may be improved and manufacturing costs reduced. A battery module may include a plurality of battery cells each including an electrode lead, a bus bar including a lead welding portion adhered to the electrode lead of each of the plurality of battery cells, and a bus bar frame including an insertion space into which at least a portion of the bus bar is inserted, and a jig support configured to support a welding jig that is configured to press the electrode lead, in a direction opposite to a pressing direction of the welding jig.