BATTERY PACK AND VEHICLE COMPRISING BATTERY PACK

A battery pack may include at least one battery module including at least one battery cell and having a cooling pipe unit including a pipe housing and a connection pipe disposed in the pipe housing, a pack case configured to accommodate the battery module, and a coolant inflow and outflow pipe mounted through the pack case and connected to the connection pipe inside the pipe housing to supply a coolant. The coolant inflow and outflow pipe includes a pipe body provided through the pack case and disposed to contact an outer surface of the pack case, an outer pipe configured to protrude out of the pack case from the pipe body and connected to an external cooling unit, and the inner pipe disposed to be spaced apart from the outer pipe by a predetermined distance, configured to protrude into the pack case from the pipe body.