BATTERY PACK AND VEHICLE INCLUDING SAME

A battery pack according to the present disclosure may include: a pack case having a storage space configured to store a plurality of battery cells therein and an opening formed on one side; a pack lid configured to cover the opening; a partition frame coupled to the pack case so as to partition the storage space; a bolt member having at least a portion passing through the pack lid, and coupled to the partition frame; and a connection member having one side fastened to the partition frame and the other side fastened to the bolt member, wherein at least a portion of the connection member may be formed of a high-temperature sensitive material configured to change in its properties in a predetermined high-temperature environment, thereby weakening retention force between the bolt member and the partition frame.