BATTERY RACK

A battery rack includes: a housing; a module unit provided in the housing, including a plurality of battery cells, and having at least one vent hole; and a cooling unit provided to face the vent hole in the housing, and including a cooling line in which a coolant is provided, wherein the cooling line is provided so that at least a portion of an outer periphery thereof is melted by heat generated from the module unit to supply the coolant toward the vent hole.