BATTERY PACK HOUSING

A battery pack housing for improved cooling efficiency of a battery cell is disclosed. A cooling fluid introduced into a battery pack of the battery pack housing flows to generate turbulence around a battery tab at which high-temperature heat is typically generated. A flow rate and a flow velocity of the cooling fluid may be increased around the battery tab, the cooling fluid may be more actively circulated, and a temperature deviation between cells in the battery pack may be effectively reduced so that performance degradation of the battery pack may be prevented and a lifetime of the battery pack may be increased. In addition, even when the same amount of cooling fluid is used, the cooling efficiency of the battery pack may be improved, and an amount of the fluid needed for cooling may be reduced to simplify an entire system of the battery pack.