公开(公告)号：US20230155161A1

公开(公告)日：2023-05-18

申请号：US18099725

申请日：2023-01-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Guyeon KIM ,  Seongil LEE ,  Yongsub JEON ,  Jooyil PYUN

IPC: H01M10/04 ,  H01M50/531 ,  H01M50/586 ,  H01M50/59 ,  H01M10/42

CPC classification number: H01M10/0431 ,  H01M50/531 ,  H01M50/586 ,  H01M50/59 ,  H01M10/4235 ,  H01M2220/30

Abstract: A battery includes: a positive electrode including a positive electrode substrate having a first surface and a second surface, a positive active material applied to the first surface of the positive electrode substrate, and a positive electrode tab attached to the first surface of the positive electrode substrate; a negative electrode including a negative electrode substrate having a first surface and a second surface, a negative active material applied to the first surface of the negative electrode substrate, and a negative electrode tab attached to the first surface of the negative electrode substrate; and a separator provided between the positive electrode and the negative electrode, wherein the first surface of the negative electrode substrate includes a first region to which the negative active material is not applied and which faces the positive electrode tab, the first surface of the negative electrode substrate includes a second region to which the negative active material is applied and which is adjacent to the first region in a longitudinal direction of the positive electrode tab, and the negative electrode includes an insulating layer disposed in at least a portion of the first region.