BATTERY PACK HAVING ELECTRICAL CONNECTION DISCONNECTION PORTION

A battery pack according to the present disclosure includes a plurality of battery modules; a pack tray accommodating the battery modules and having an open top; a pack cover disposed on top of the pack tray to seal an accommodation space in which the battery modules are received; and an electrical connection disconnection portion disposed between the pack tray and the pack cover to electrically connect and support a module connection busbar connecting two battery modules among the plurality of battery modules, and separate the connection of the module connection busbar to disconnect the electrical connection between the two battery modules when a thermal event occurs.