ELECTRODE SHEET, BATTERY CELL, AND BATTERY

An electrode sheet, a battery cell, and a battery are provided. The electrode sheet includes an electrode sheet body. The electrode sheet body includes a first side edge and a second side edge connected. A connection position between the first side edge and the second side edge is provided with a first chamfer. The first chamfer includes a first arc segment and at least one first transition segment. The first arc segment is connected to the first side edge and/or the second side edge through the at least one first transition segment. The first arc segment protrudes toward a direction away from a center of the electrode sheet body.