Multi-tab battery cell and secondary battery comprising same

Two tabs of the multi-tab battery cell are respectively led out along two ends of the battery cell, each tab comprises a leading-out part and a bending part, after the bending parts are bent towards the central axis of the battery cell, the end parts of the bending parts continue to be flatly bent towards the central axis of the battery cell and are electrically connected, the bending angle is smaller than 90 degrees, and the leading-out parts are connected with the bending parts. Compared with the conventional scheme that tabs of a full-tab battery cell are kneaded to be electrically connected, the battery cell disclosed by the utility model avoids a kneading process, also avoids the problem of metal chips caused by kneading, and reduces the welding short-circuit rate; meanwhile, the tabs of the battery cell are relatively high in flatness after being folded to be flat, and the welding consistency and the welding yield are remarkably improved, so that the problems that metal chips are easy to generate when t