US 12,438,196 B2
Electrolytes for lithium batteries
Yuriy V. Mikhaylik, Tucson, AZ (US); Igor P. Kovalev, Vail, AZ (US); and Alexis Sheffield, Tucson, AZ (US)
Assigned to Sion Power Corporation, Tucson, AZ (US)
Filed by Sion Power Corporation, Tucson, AZ (US)
Filed on Apr. 4, 2022, as Appl. No. 17/712,754.
Claims priority of provisional application 63/172,529, filed on Apr. 8, 2021.
Prior Publication US 2022/0328880 A1, Oct. 13, 2022
Int. Cl. H01M 10/0569 (2010.01); H01M 4/134 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0569 (2013.01) [H01M 4/134 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0034 (2013.01); H01M 2300/0037 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrochemical cell, comprising:
a first electrode comprising lithium;
a first solvent comprising an asymmetric sulfonamide; and
a second solvent, wherein the second solvent comprises both a cyclic carbonate and a linear carbonate,
wherein the asymmetric sulfonamide has a formula (I):

OG Complex Work Unit Chemistry
wherein R1 and R2 can be the same or different and each is independently selected from unsubstituted, unbranched aliphatic chains; silyl substituents; or wherein R1 and R2 are connected to form an N-bound heterocycle;
wherein, if R1 is selected from unsubstituted, unbranched aliphatic chains, R1 comprises n carbon atoms, where n is an integer greater than or equal to 1 and less than or equal to 10;
wherein, if R2 is selected from unsubstituted, unbranched aliphatic chains, R2 comprises m carbon atoms, where m is an integer greater than or equal to 1 and less than or equal to 10;
wherein, if R1 and R2 are connected to form an N-bound heterocycle, the N-bound heterocycle comprises j carbon atoms, where j is an integer greater than or equal to 2 and less than or equal to 11;
wherein, if R1 and/or R2 is a silyl substituent, the silyl substituent has the form SiR43, where R4 is an unsubstituted, unbranched aliphatic chain comprising k carbon atoms, where k is an integer greater than or equal to 1 and less than or equal to 10; and
wherein R3 is an electron withdrawing species.