BATTERY MODULE

A battery module includes: a first battery cell including a first terminal at a top surface thereof; a second battery cell arranged adjacent to the first battery cell and including a second terminal arranged at a top surface thereof in substantially parallel to the first terminal; and an electrode tab electrically connecting the first terminal and the second terminal to each other, wherein the electrode tab includes: a first extension portion coupled to the first terminal and extending along an adjacent side portion of the first battery cell and the second battery cell; a second extension portion coupled to the second terminal and extending along the adjacent side portion in substantially parallel to the first extension portion; and a connection portion connected to the first extension portion and the second extension portion and including a protrusion portion protruding upward from the first battery cell and the second battery cell.