BATTERY PACK AND ELECTRIC VEHICLE

A battery pack includes: a battery cell; one or more shoulder screws having a head portion, a screw portion, and an intermediate portion between the head portion and the screw portion, the intermediate portion being larger than an outer diameter of the screw portion and smaller than an outer diameter of the head portion; and an exterior case including an upper case and a lower case fastened to each other with the one or the plurality of shoulder screws. A first elastic member is disposed in a compressed state at a contact portion between the upper case and the lower case, and a second elastic member is disposed in a compressed state between the head portion and the upper case.