US 12,469,879 B2
Electrolyte additive, battery electrolyte including electrolyte additive, and secondary battery including battery electrolyte
Ji Young Choi, Gyeonggi-do (KR); Ji Seong Han, Gyeonggi-do (KR); Jong Chul Yun, Gyeonggi-do (KR); Min Goo Kim, Gyeonggi-do (KR); Min Jung Jang, Gyeonggi-do (KR); Hyeong Kyu Lim, Gyeonggi-do (KR); Wan Chul Kang, Gyeonggi-do (KR); and Sang Ho Lee, Gyeonggi-do (KR)
Assigned to SOULBRAIN CO., LTD., Gyeonggi-do (KR)
Appl. No. 17/621,293
Filed by SOULBRAIN CO., LTD., Gyeonggi-do (KR)
PCT Filed Jun. 26, 2020, PCT No. PCT/KR2020/008418
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2020/263045, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10-2019-0078036 (KR), filed on Jun. 28, 2019; application No. 10-2019-0138280 (KR), filed on Nov. 1, 2019; and application No. 10-2020-0078727 (KR), filed on Jun. 26, 2020.
Prior Publication US 2022/0376299 A1, Nov. 24, 2022
Int. Cl. H01M 50/46 (2021.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 50/46 (2021.01); H01M 2220/20 (2013.01); H01M 2300/0028 (2013.01)] 13 Claims
 
1. An electrolyte additive, comprising a compound represented by one selected from the group consisting of Chemical Formulas 2 to 15 and 17 to 24 below:

OG Complex Work Unit Chemistry
in chemical Formula 2, A1 and A2 are each independently phosphorus or sulfur; R1′, R2′ R3′, and R4′ are each independently hydrogen, or an alkyl group having 1 to 10 carbon atoms; and m and n are each independently an integer of 1 to 5,

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry
wherein, in Chemical Formulas 3 to 15 and 17 to 24, a line denotes a bond, a point where the lines meet without any element being marked denotes carbon, and hydrogens satisfying a valence of the carbon are omitted.