Patent ID: 11949127
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery comprising:
an electrode assembly including:
a positive electrode including a positive electrode tab provided at one end,
a negative electrode disposed on one surface of the positive electrode and including a negative electrode tab provided at one end,
a first separator disposed between the positive electrode and the negative electrode to separate the positive electrode from the negative electrode and including an extension extending from another end of the positive electrode or the negative electrode, and
a second separator including one surface disposed on another surface of the positive electrode or the negative electrode; and

a pouch wrapping the electrode assembly, wherein the positive electrode, the negative electrode, the first separator, and the second separator are wound so that the extension of the first separator is exposed to an outside, and
an exposed surface of the extension is configured as an adhesive layer,
wherein the first separator includes a base film and a binder disposed on both surfaces of the base film,
wherein the adhesive layer is disposed on a portion of the base film included in the extension, and
wherein the base film and the binder are wound such that the adhesive layer is attached to a terminal end of the binder at an interior of the electrode assembly, and terminates after winding to form an exterior surface of the electrode assembly.