BATTERY PACK AND DEVICE INCLUDING THE SAME

A battery pack includes a battery module including a battery cell stack in which a plurality of battery cells are stacked and a module frame for housing the battery cell stack, and a pack frame for housing the battery module, wherein an empty space between the battery module and the pack frame and/or an empty space between the battery modules are sealed by a filling member, and wherein the filling member is in contact with the battery module and the pack frame.