ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC APPARATUS

Disclosed in the present application are an electrode sheet, an electrode assembly, a battery cell, a battery, and an electric apparatus. The electrode sheet comprises: a body part, at least part of the surface of the body part being coated with an active substance; a tab part, arranged on at least one side of the body part, and connected to the body part; and an opening, passing through the tab part in the thickness direction of the tab part, and provided with a first end and a second end. The first end and the second end are sequentially arranged in the direction away from the body part; and the opening extends from the first end to the second end along a preset route. In a production and manufacturing process of the electrode sheet provided by the embodiment of the application, a folding phenomenon of the tab part can be reduced, so that the tab part is prevented from being insufficient in overcurrent area, and thus when a battery cell is charged and discharged, heat generated by the tab part is reduced an