Battery cell cover plate and battery cell

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. According to the battery cell cover plate, a welding table part is formed on a pole column and is used for being welded with a pole lug on a pole group; the insulating part comprises an insulating main body and a shielding part; the insulating main body is provided with an opening for the pole group to extend in, and the welding table part is arranged on one side, facing the pole group, of the insulating part; a convex surrounding edge part is formed on the outer edge of the insulating main body so as to surround the side part of the welding table part; a notch is formed in the surrounding edge part, so that the tab extends to the welding table part from the side of the insulating part, and a gap is formed between one side, facing the insulating part, of the tab and the surrounding edge part; and after the tab is connected with the welding table part, the shielding piece is connected with