BATTERY MODULE HAVING INSULATION PAD WITH EXTENDED LENGTH, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Disclosed is a battery module, which includes a cell stack in which a plurality of battery cells are stacked; a pair of bus bar frames configured to cover one side and the other side of the cell stack in a longitudinal direction; a housing configured to accommodate a combined body of the cell stack and the bus bar frame so that the bus bar frame is exposed out; and an insulation pad interposed between a side surface of the cell stack and an inner surface of the housing and between a side surface of the bus bar frame and the inner surface of the housing.