BATTERY MODULE, BATTERY PACK INCLUDING BATTERY MODULE, AND VEHICLE INCLUDING BATTERY PACK

A battery module 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 elastically connected to the base plate and configured to cover an upper side of the battery cell assembly, the pressing pulley being elastically deformable in a vertical direction of the battery cell assembly according to cell swelling of the battery cell assembly.