BATTERY PACK INCLUDING HEAT TRANSFER MEMBER HAVING INTRODUCTION PORTION AND DISCHARGE PORTION OF COOLING FLUID FORMED THEREIN

The present invention relates to a battery pack including a battery cell stack including a plurality of battery cells, a cooling member that cools the battery cell stack, a heat transfer member that discharges heat from the plurality of battery cells to the cooling member, and a pack case that accommodates the battery cell stack, the cooling member, and the heat transfer member therein, wherein the heat transfer member includes an introduction portion and a discharge portion of a cooling fluid. When the temperature of the battery cell is equal to or lower than a dangerous temperature, it is possible to adjust the temperature of each of the battery cells to a predetermined level, and when the temperature of the battery cell is higher than the dangerous temperature, it is possible to rapidly cool the battery cell.