BATTERY MODULE, BATTERY PACK COMPRISING BATTERY MODULE, AND VEHICLE COMPRISING BATTERY PACK

Disclosed is a battery module, which includes a battery cell assembly including at least one battery cell, a base plate configured to support a lower side of the battery cell assembly, and a pressing pulley unit elastically connected to the base plate and configured to cover an upper side of the battery cell assembly, the pressing pulley unit being elastically deformable in a vertical direction of the battery cell assembly according to cell swelling of the battery cell assembly.