Method for producing battery cell

The invention relates to a method for producing a battery cell (12) having a laminated structure (1) or a wound structure formed by electrodes (2, 3) and a separator (4), at least one of the electrodes (2, 3) having electrically conductive tabs (5) projecting laterally in one direction from the laminated structure (1) or the wound structure, the electrically conductive tabs being welded to one another. The invention is characterized in that the conductive tabs (5) are compressed and are connected by welding on the side thereof facing the laminated structure (1) or the wound structure, the compressed and welded conductive tab (5 ') is clamped on its side facing away from the laminated structure (1) or the wound structure by a welding electrode (7) and is wound around the welding electrode (7) in the direction of the laminated structure (1) or the wound structure, and then the battery cover (9) of the battery cell (12) is welded together with the wound conductive tab (5'). The invention further relates to a cor