Patent attributes
The present application provides an electrode assembly including a first electrode sheet including a first current collector and a first active substance layer arranged on the surface of the first current collector; the first electrode sheet includes a first section and a second section; both surfaces of the first section is applied with the first active substance layer while one surface of the second section is applied with the first active substance layer; the second section is electrically connected to the first section, and the first section is closer to a starting end of the first electrode sheet than the second section is; wherein the second section includes a first bending section, and the first bending section is a region where the first electrode sheet is bent for the first time. Thereby, the risk of lithium decomposition of the battery is reduced, and the life is prolonged.
