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

A battery module includes a plurality of battery cells, a base frame configured to support the plurality of battery cells, a cover frame coupled to the base frame to cover the plurality of battery cells, and a bus bar unit coupled to the cover frame in a tiltable form to be pivoted at a predetermined angle between a first location fixed to the cover frame and a second location fixed to the base frame.