US 12,113,170 B2
Electrolyte composition and secondary battery using same
Kwanwook Song, Pyeongtaek-si (KR); Joonghan Kum, Dangjin-si (KR); Seongchul Lee, Pyeongtaek-si (KR); and Han Young Choi, Pyeongtaek-si (KR)
Assigned to DONGWOO FINE-CHEM CO., LTD., Iksan-si (KR)
Appl. No. 17/296,461
Filed by DONGWOO FINE-CHEM CO., LTD., Iksan-si (KR)
PCT Filed Nov. 19, 2019, PCT No. PCT/KR2019/015857
§ 371(c)(1), (2) Date May 24, 2021,
PCT Pub. No. WO2020/111633, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10-2018-147739 (KR), filed on Nov. 26, 2018; and application No. 10-2019-0090420 (KR), filed on Jul. 25, 2019.
Prior Publication US 2021/0399343 A1, Dec. 23, 2021
Int. Cl. H01M 10/05 (2010.01); C07F 7/18 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01)
CPC H01M 10/0567 (2013.01) [C07F 7/1804 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0025 (2013.01)] 13 Claims
 
1. An electrolyte composition comprising a compound of the formula (1) below, a cyclic fluorocarbonate-based compound, and a nonaqueous solvent,
wherein the cyclic fluorocarbonate-based compound is contained in an amount of 0.5 to 30% by weight, based on 100% by weight of the total electrolyte composition,

OG Complex Work Unit Chemistry
wherein,
R is Si[(CH2)xCH3]y[(CH2)2CF3]3-y, and
x, y and z are each independently an integer of 0 to 3.