BATTERY PACK AND MANUFACTURING METHOD THEREFOR

Provided is a battery pack including: a frame having an inner space; a plurality of battery cells each having one end disposed in the inner space of the frame and the other end protruding to the outside of one side of the frame; a filling material filled in the inner space of the frame; a heat sink disposed to face one side of the frame; and a plurality of cell holders stacked between the frame and the heat sink. Here, a volume of the inner space of the frame and an amount of the filling material filled in the inner space of the frame are adjusted according to the stacked number of the cell holders.