US 12,136,740 B2
Energy storage system
Suk Chul Kim, Daejeon (KR); Yong Uk Kim, Daejeon (KR); and Jong Ho Seok, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR)
Filed on Feb. 22, 2021, as Appl. No. 17/181,107.
Claims priority of application No. 10-2020-0030298 (KR), filed on Mar. 11, 2020.
Prior Publication US 2021/0288372 A1, Sep. 16, 2021
Int. Cl. H01M 50/244 (2021.01); H01M 10/613 (2014.01); H01M 10/627 (2014.01); H01M 10/6556 (2014.01); H01M 10/6561 (2014.01); H01M 10/6566 (2014.01); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/211 (2021.01); H01M 50/251 (2021.01); H01M 50/258 (2021.01); H01M 50/276 (2021.01); H01M 50/282 (2021.01); H01M 50/289 (2021.01); H01M 50/367 (2021.01); H01M 50/383 (2021.01); H01M 50/531 (2021.01)
CPC H01M 50/244 (2021.01) [H01M 10/613 (2015.04); H01M 10/627 (2015.04); H01M 10/6556 (2015.04); H01M 10/6561 (2015.04); H01M 10/6566 (2015.04); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/211 (2021.01); H01M 50/251 (2021.01); H01M 50/258 (2021.01); H01M 50/276 (2021.01); H01M 50/282 (2021.01); H01M 50/289 (2021.01); H01M 50/367 (2021.01); H01M 50/383 (2021.01); H01M 50/531 (2021.01); H01M 2200/00 (2013.01); H01M 2220/10 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An energy storage system, comprising:
a plurality of battery modules including a plurality of secondary battery cells, wherein electrode tabs of the plurality of secondary battery cells are disposed on one or both sides of each battery module; and
a housing accommodating a module stack in which the plurality of battery modules are stacked,
wherein the housing includes:
a first cover disposed to oppose at least one side surface of the module stack on which the electrode tab is disposed; and
a second cover disposed to oppose at least one of the side surfaces of the module stack on which the electrode tab is not disposed,
wherein a flame passage is formed between the first cover and the module stack, and a cooling passage is formed between the second cover and the module stack, and
the cooling passage is formed as an independent passage separated from the flame passage,
wherein each of the plurality of battery modules includes:
a cover member coupled to at least one side of the secondary battery cells on which the electrode tab is disposed, and including a plurality of through-holes configured to provide path of flame or gas,
wherein the plurality of through-holes are located between the electrode tab and the first cover, and
wherein the housing further includes a partition wall disposed along a portion in which the first cover is connected to the second cover, and configured to be in direct contact with the module stack and to partition the cooling passage from the flame passage, and the partition wall is formed by bending a portion of the housing.