Battery Pack And Device Comprising Same

Abstract: A battery pack according to one embodiment of the present invention comprises: a battery module including a battery cell stack in which a plurality of stacked battery cells are stacked, first and second side plates positioned on both side surfaces of the battery cell stack, and connection members arranged at the top and the bottom of the battery cell stack so as to connect the first and second side plates; a pack tray for accommodating the battery module; and a heat sink including at least one cooling portion in which a refrigerant flows. The heat sink comprises an upper heat sink positioned on top of the battery module and/or a lower heat sink positioned on the bottom of the battery module. The first and second side plates are fixed to the pack tray. The cooling portion of the upper heat sink is positioned on one side of the connection member at the top of the battery module, and the cooling portion of the lower heat sink is positioned on one side of the connection member at the bottom of the battery module.

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