BATTERY MODULE

A battery module is disclosed. The battery module includes a cell assembly including a plurality of battery cells, each of the plurality of battery cells including: an electrode accommodation portion accommodating an electrode assembly, and an electrode lead protruding from the electrode accommodation portion and coupled to the electrode assembly; a module housing accommodating the cell assembly; a bus bar unit including: a plurality of slits in which the electrode leads are inserted respectively, and a bus bar coupled to the electrode leads; and a guide member positioned between the electrode accommodation portion and the bus bar unit, the guide member including a plurality of openings through which the electrode leads pass.