BATTERY PACK WITH INCREASED LIFESPAN OF BATTERY CELL AND DEVICE INCLUDING THE SAME

The present invention relates to a battery pack with increased lifespan of a battery cell and a device including the same, and more particularly a battery pack including a plurality of battery modules (1000) stacked in a vertical direction in a horizontal state; a pressing plate (2100) including an upper pressing plate (2110) and a lower pressing plate (2120) located outside the battery modules (1000); a first (2210) and a second elastic member (2220) configured to connect the upper pressing plate (2110) and the lower pressing plate (2120) to each other with a tensile force; and a pack case (2300) configured to wrap the pressing plate (2100), wherein the pack case (2300) includes an upper pack cover (2310) and a lower pack cover (2320), and a third elastic member (2230) is provided between the upper pack cover (2310) and the upper pressing plate (2110), and a device including the same, wherein each of the battery modules (1000) includes a heat sink (100) having a predetermined area, the heat sink being horizontally located; a support plate (200) including an upper support plate (210) and a lower support plate (220) located respectively at the upper surface and the lower surface of the heat sink (100); a battery cell (500) including a first battery cell (510) disposed in tight contact with the upper support plate (210) and a second battery cell (520) disposed in tight contact with the lower support plate (220); and a cover plate (600) including an upper cover plate (610) located above the first battery cell (510) and a lower cover plate (620) located under the second battery cell (520).