公开(公告)号：US20250015453A1

公开(公告)日：2025-01-09

申请号：US18764705

申请日：2024-07-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungho CHU ,  Shihyun Kim ,  Seonyoung Park ,  Kiyoun Jang

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/247 ,  H01M50/528

Abstract: A battery may include: a negative electrodes including a negative electrode including a first tab portion, and a negative electrode current collector including a first recess; positive electrodes arranged alternately with the negative electrodes, and including a positive electrode including a second tab portion, and a positive electrode current collector including a second recess; a separator between two adjacent electrodes among the negative electrodes and the positive electrodes; a first lead tab in the first recess; and a second lead tab in the second recess, wherein the first tab portion is welded to the first lead tab so as to form a first welding portion located in the first recess, and the second tab portion is welded to the second lead tab so as to form a second welding portion located in the second recess.