US 12,463,252 B2
Additive for electrolyte, electrolyte, and electrochemical device
Chaojie Xiong, Xiamen (CN); and Min Guo, Xiamen (CN)
Assigned to HITHIUM TECH HK LIMITED, Kowloon (HK)
Filed by Hithium Tech HK Limited, Kowloon (HK)
Filed on Jul. 21, 2022, as Appl. No. 17/813,978.
Claims priority of application No. 202110824371.1 (CN), filed on Jul. 21, 2021.
Prior Publication US 2023/0109679 A1, Apr. 13, 2023
Int. Cl. H01M 10/0567 (2010.01); H01M 4/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 50/46 (2021.01)
CPC H01M 10/0567 (2013.01) [H01M 4/0404 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 50/46 (2021.01); H01M 2300/0051 (2013.01)] 13 Claims
 
1. An electrolyte, comprising a lithium salt, an organic solvent, and an additive comprising:
a compound represented by a formula (I):

OG Complex Work Unit Chemistry
wherein R1, R2, R3, and R4 are identical to or different from each other, and are independently selected from a group consisting of hydrogen, halogen, substituted or unsubstituted C1-C20 alkyl, and substituted or unsubstituted C6-C18 aryl, and wherein a substituent of the substituted or unsubstituted C1-C20 alkyl or the substituted or unsubstituted C6-C18 aryl is halogen, C1-C20 alkyl, or C6-C18 aryl;
wherein custom character denotes a single bond or a double bond; and
wherein n is 1.