BATTERY PACK AND DEVICE INCLUDING THE SAME

Discussed is a battery back that includes: a plurality of battery modules that includes a battery cell stack, a module frame for housing the battery cell stack, and a heat sink located under a bottom part of the module frame; a pack frame that houses the plurality of battery modules; and a refrigerant transfer bolt that fastens the bottom part of the module frame, the heat sink, and the pack frame, wherein the pack frame includes a pack refrigerant pipe for supplying and discharging refrigerant, wherein a connection pipe for connecting the pack refrigerant pipe and the heat sink is formed through the refrigerant transfer bolt, and wherein the refrigerant transfer bolt includes an opening/closing member that opens or cuts off the connection pipe in response to a temperature of the refrigerant.