Electrode sheet, battery and electrical device

Abstract

Electrode sheet comprising: a current collector, a first active material layer and a second active material layer, wherein: the current collector is provided with a first surface and a second surface which are opposite each other in a first direction, the first active material layer is arranged on the first surface, the second active material layer is arranged on the second surface, the first direction is a thickness direction of the current collector, the current collector has a first end and a second end in a second direction, the first active material layer and the second active material layer located at the first end are aligned with each other, the first active material layer and the second active material layer located at the second end are offset from each other.the second direction is a longitudinal direction of the current collector and an end section of the first active material layer is arranged in the second direction between an end section of the second active material layer and the second end of the current collector; and the first active material layer is provided with a groove, and a projection of the end section of the second active material layer along the first direction lies within the groove.