BATTERY PACK

The present disclosure relates to a battery pack including a plurality of battery cells that can be charged and discharged. A battery pack according to an embodiment of the present disclosure may include a plurality of battery cells, a case forming an internal space in which the plurality of battery cells are accommodated, and a reinforcing member interposed between inner walls of the case to prevent deformation of the case, wherein the reinforcing member may include a first reinforcing member contacting one inner wall of the case, a second reinforcing member contacting the other inner wall of the case, and a third reinforcing member formed thicker than the first and second reinforcing members and connecting the first and second reinforcing members between the first and second reinforcing members. At this time, the third reinforcing member may have a rod shape extending in a length direction of the battery cell, and the third reinforcing member may include a through hole formed along a direction in which the third reinforcing member extends.