Battery module to which battery cell pressing-type end plate and expandable sensing housing structure are applied

A battery module is disclosed. The battery module, according to the present invention, having a cell assembly composed of a plurality of pouch-type battery cells, which are stacked and arranged in one direction by allowing a wide surface thereof to be erected, can comprise: one pair of buffering pads arranged on both side surface parts of the cell assembly; top and bottom plates respectively covering the upper part and the lower part of the cell assembly; and one pair of side plates placed between the one pair of buffering pads and the cell assembly and pressed in or fitted and coupled to both end parts of the top and bottom plates.