Manufacturing process of battery cell with tooth-shaped tab and end face shaping equipment

The invention provides a manufacturing process of a battery cell with a tooth-shaped tab, which comprises the following steps: taking a pole plate, and carrying out the following operations: S1, cutting: preparing a tooth-shaped structure at the smooth edge of the pole plate to form the tab; s2, winding: winding and forming the pole plate to form a battery cell pole group 1; and S3, end face forming: bending the tabs towards the center, and flattening to form a pole group end face. A tooth-shaped structure is manufactured on a smooth edge, redundant metal is cut off before the end face of a battery cell pole group is kneaded and pressed, tabs on the end face of a battery cell are uniformly distributed and orderly stacked through the working procedures of winding, lodging towards the center, flattening and the like, the height difference of high points and low points of a welding surface is the thickness of a current collector, and the flatness is smaller than 0.05 mm; the contact area of the confluence disc a