US 11,728,530 B2
Lithium secondary battery and secondary battery sub module comprising the same
Hee-Gyoung Kang, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK ON CO., LTD., Seoul (KR)
Filed on Jun. 2, 2020, as Appl. No. 16/889,841.
Application 16/889,841 is a continuation of application No. 15/171,204, filed on Jun. 2, 2016, abandoned.
Claims priority of application No. 10-2015-0078723 (KR), filed on Jun. 3, 2015.
Prior Publication US 2020/0295312 A1, Sep. 17, 2020
Int. Cl. H01M 10/613 (2014.01); H01M 10/6551 (2014.01); H01M 10/625 (2014.01); H01M 10/052 (2010.01); H01M 10/6555 (2014.01); H01M 50/124 (2021.01); H01M 50/147 (2021.01); H01M 50/211 (2021.01); H01M 50/129 (2021.01); H01M 50/122 (2021.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/117 (2021.01)
CPC H01M 10/613 (2015.04) [H01M 10/052 (2013.01); H01M 10/625 (2015.04); H01M 10/6551 (2015.04); H01M 10/6555 (2015.04); H01M 50/117 (2021.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/122 (2021.01); H01M 50/124 (2021.01); H01M 50/129 (2021.01); H01M 50/147 (2021.01); H01M 50/211 (2021.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11); Y02T 10/70 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A lithium secondary battery sub module comprising:
a plurality of lithium secondary batteries; and
a heat radiation plate including a vertical portion disposed between two adjacent lithium secondary batteries of the plurality of lithium secondary battery,
wherein each of the plurality of lithium secondary batteries includes:
an electrode assembly;
a plastic case which is an injection molded product and housing the electrode assembly;
a gas barrier layer formed on an inner surface of the plastic case; and
a cover having a film form which seals the plastic case, the cover comprises an inner resin layer facing to the electrode assembly, an outer resin layer facing to the vertical portion of the heat radiation plate, and a metal thin film disposed between the inner resin layer and the outer resin layer,
wherein the outer resin layer formed from at least one selected from a group consisting of polyethylene terephthalate, polyethylene naphthalate, nylon and a liquid crystal polymer resin,
wherein the covers of the two adjacent lithium secondary batteries face to the vertical portion of the heat radiation plate, and the covers and the vertical portion are physically spaced apart from each other,
wherein the heat radiation plate further includes:
a first horizontal portion extending from an end of the vertical portion; and
a second horizontal portion extending from another end of the vertical portion,
wherein the two adjacent lithium secondary batteries are positioned between the first and second horizontal portion.