BATTERY PACK AND VEHICLE COMPRISING BATTERY PACK

A battery pack according to an embodiment of the present disclosure includes a plurality of battery modules having at least one battery cell and having heatsink units respectively provided to upper and lower sides thereof, the heatsink unit having a cooling channel through which a coolant flows, at least one crush beam provided between the plurality of battery modules, a pack tray configured to support the at least one crush beam and the plurality of battery modules, and a plurality of drain holes provided in the pack tray to discharge the coolant out of the battery pack when the coolant leaks.