Pole piece, battery and electric equipment

Abstract

The invention discloses a pole piece, a battery and electric equipment. The pole piece comprises a current collector and a tab, the current collector is provided with a first through hole. And the tab is provided with a notch part. And the notch part penetrates through the tab. The tab comprises a base part surrounding the notch part and a connecting part connected with the base part. The connecting part protrudes out of the surface of the base part, and the connecting part penetrates through the first through hole and is connected with the side, away from the base part, of the current collector. The notch part comprises a first edge, a second edge and a first arc-shaped edge. The first arc-shaped edge connects the first edge and the second edge. The first arc-shaped edge is arranged at the corner position of the notch part, so that stress concentration at the corner position of the notch part can be reduced, and the risk of tab breakage caused by cracks of the notch part is reduced.

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