US 12,412,964 B2
Secondary battery
Kyu Gil Choi, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
Filed on May 19, 2022, as Appl. No. 17/664,197.
Claims priority of application No. 10-2021-0066081 (KR), filed on May 24, 2021.
Prior Publication US 2022/0376366 A1, Nov. 24, 2022
Int. Cl. H01M 50/536 (2021.01); H01M 4/02 (2006.01); H01M 10/04 (2006.01); H01M 50/533 (2021.01)
CPC H01M 50/536 (2021.01) [H01M 10/0468 (2013.01); H01M 50/533 (2021.01); H01M 4/02 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A secondary battery comprising:
an electrode assembly comprising:
a first electrode plate comprising a first substrate tab,
a second electrode plate comprising a second substrate tab, and
a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate, the separator, and the second electrode plate being stacked in a stacking direction;
a first lead welded to the first substrate tab;
a second lead welded to the second substrate tab;
a heat shrinkable tube entirely surrounding a thickness portion of the electrode assembly; and
a case accommodating the electrode assembly,
wherein the heat shrinkable tube does not cover a plate surface portion of the electrode assembly, and
wherein the thickness portion of the electrode assembly is an outer surface of the electrode assembly that is parallel to the stacking direction, and the plate surface portion of the electrode assembly is an outer surface of the electrode assembly that is perpendicular to the stacking direction.