US 12,224,446 B2
Secondary battery
Byoung Gu Lee, Daejeon (KR); Do Gyun Kim, Daejeon (KR); Kwang Su Hwangbo, Daejeon (KR); and Sang Suk Jung, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/268,125
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Aug. 14, 2019, PCT No. PCT/KR2019/010374
§ 371(c)(1), (2) Date Feb. 12, 2021,
PCT Pub. No. WO2020/036440, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 10-2018-0095644 (KR), filed on Aug. 16, 2018; and application No. 10-2019-0099301 (KR), filed on Aug. 14, 2019.
Prior Publication US 2021/0328290 A1, Oct. 21, 2021
Int. Cl. H01M 50/124 (2021.01); H01M 10/04 (2006.01); H01M 50/109 (2021.01); H01M 50/117 (2021.01); H01M 50/121 (2021.01); H01M 50/122 (2021.01); H01M 50/153 (2021.01); H01M 50/193 (2021.01); H01M 50/46 (2021.01); H01M 50/531 (2021.01)
CPC H01M 50/1243 (2021.01) [H01M 10/0427 (2013.01); H01M 10/0431 (2013.01); H01M 50/109 (2021.01); H01M 50/117 (2021.01); H01M 50/121 (2021.01); H01M 50/122 (2021.01); H01M 50/124 (2021.01); H01M 50/153 (2021.01); H01M 50/193 (2021.01); H01M 50/46 (2021.01); H01M 50/531 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A secondary battery comprising:
an electrode assembly in which an electrode and a separator are combined and stacked;
a can configured to accommodate the electrode assembly therein; and
an insulation coating part applied to an inner surface of the can,
wherein the insulation coating part comprises a ceramic material having a coating thickness of 1 μm to 15 μm, and wherein the insulation coating part is made of a composition including silicon dioxide (SiO2), an organic binder, an inorganic binder, and alcohol, and
wherein the organic binder comprises at least one or more of dipropyleneglycol monomethyl ether, vinyl acetate, isobuty acetate, or carboxylic acid.