US 11,996,574 B2
Battery sub-packing unit
Hae Ryong Jeon, Daejeon (KR); Yang Kyu Choi, Daejeon (KR); Tae Il Kim, Daejeon (KR); and Kang Gu Lee, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR)
Filed on Nov. 30, 2021, as Appl. No. 17/538,533.
Claims priority of application No. 10-2020-0164098 (KR), filed on Nov. 30, 2020.
Prior Publication US 2022/0173473 A1, Jun. 2, 2022
Int. Cl. H01M 50/24 (2021.01); H01M 10/0525 (2010.01); H01M 50/202 (2021.01); H01M 50/209 (2021.01); H01M 50/273 (2021.01); H01M 50/30 (2021.01)
CPC H01M 50/24 (2021.01) [H01M 10/0525 (2013.01); H01M 50/209 (2021.01); H01M 50/273 (2021.01); H01M 50/30 (2021.01); H01M 50/202 (2021.01)] 18 Claims
OG exemplary drawing
 
1. A battery sub-packing unit comprising:
at least one battery cell comprising an electrode tab; and
a case comprising:
a surrounding cover accommodating the at least one battery cell in an internal space; and
an end panel comprising:
an edge portion face coupled to the surrounding cover and formed of a metal material;
a central portion completely surrounded by the edge portion face and formed of an insulating material;
a slit opening formed on the central portion through which the electrode tab extends out of the case; and
a sub-vent hole formed on the edge portion face and communicating between the internal space and a pace external to the
wherein the surrounding cover surrounds the at least one battery cell in a circumferential direction of the end panel.