Battery pack with radial fan

The present invention relates to a battery pack that is mounted on a hybrid truck of HEV (Hybrid Electric Vehicle), For cooling of the battery pack to be mounted on the outside of the hybrid truck radial fan configured and inside of the battery pack is formed with a flow path of cooling air eliminates the need for a separate, external cooling duct that connects the battery pack and the radial fan of the battery pack, and a simple configuration of the components for cooling, it is possible to reduce the overall pressure drop of the cooling system of the battery pack relates to a battery pack including a radial fan to improve the cooling performance. Further, by providing the radial fan therein for cooling the battery pack, there is a direction of the cooling air passing between the inlet and outlet direction of several battery cells (cell) of the cooling air can be configured so that it is perpendicular to the battery pack, the cooling flow is more related to a battery pack including a radial fan to be efficiently designed.