US 11,837,749 B2
Battery sub-packing unit and battery module including the same
Suk Chul Kim, Daejeon (KR); Dae Won Kwon, Daejeon (KR); Yong Uk Kim, Daejeon (KR); and Jong Ho Seok, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Feb. 9, 2023, as Appl. No. 18/107,515.
Application 18/107,515 is a continuation of application No. 17/167,248, filed on Feb. 4, 2021, granted, now 11,611,129.
Claims priority of application No. 10-2020-0015130 (KR), filed on Feb. 7, 2020; and application No. 10-2021-0011273 (KR), filed on Jan. 27, 2021.
Prior Publication US 2023/0187776 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/383 (2021.01); H01M 50/186 (2021.01); H01M 50/211 (2021.01); H01M 50/291 (2021.01); H01M 10/0525 (2010.01)
CPC H01M 50/383 (2021.01) [H01M 10/0525 (2013.01); H01M 50/186 (2021.01); H01M 50/211 (2021.01)] 7 Claims
OG exemplary drawing
 
1. A battery sub-packing unit, comprising:
a plurality of pouch-type secondary battery cells;
a cell support member including a seating portion on which at least one secondary battery cell is seated and a venting inducing portion allowing the seating portion to communicate with the outside;
a case member provided to surround the secondary battery cells accommodated in the seating portion and sealing a periphery of the plurality of secondary battery cells,
wherein the venting inducing portion is disposed to oppose a sealing portion from which an electrode lead of the pouch-type secondary battery cell is drawn out,
wherein the cell support member includes a liquid guide tab disposed below the venting inducing portion and including a rail groove for guiding leakage of electrolyte discharged from the secondary battery cell formed therein, and
wherein the case member is bent such that a coupling end, which is opposite a closed end, is inserted into a coupling groove formed in the cell support member so as to be in close contact with the cell support member, and is bent multiple times to include a notch shape.