ELECTRODE SHEET, PREPARATION METHOD THEREFOR, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

An electrode sheet, a preparation method, a battery cell, a battery, and an electric device are provided. The electrode sheet includes a current collector having a main body and a tab extending from a first end of the main body in a first direction. The main body includes a coated region and a transition region located between the coated region and the tab. An active material layer is formed on the coated region. A first insulating layer is disposed on the end face of the first end. A second insulating layer is at least partially disposed on the surface of the transition region and includes a thermoplastic polymer. The thermoplastic polymer has a volumetric particle size distribution DV50 of 6-10 μm and a maximum particle size Dmax of 90-110 μm. The electrode sheet improves the reliability of the battery cell.