US 12,334,502 B2
Electrolytes for lithium-containing battery cells
Woo Cheol Shin, San Jose, CA (US); and Soonho Ahn, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Dec. 11, 2023, as Appl. No. 18/535,610.
Application 18/535,610 is a continuation of application No. 16/738,883, filed on Jan. 9, 2020, granted, now 11,881,558.
Prior Publication US 2024/0136585 A1, Apr. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0568 (2010.01); C07C 25/13 (2006.01); C07C 25/18 (2006.01); C07C 25/22 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0568 (2013.01) [C07C 25/13 (2013.01); C07C 25/18 (2013.01); C07C 25/22 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0028 (2013.01)] 20 Claims
 
1. An electrolyte for a lithium-containing battery cell, the electrolyte comprising:
a solvent comprising at least one carbonate ester;
at least one lithium salt having a concentration ranging from 5 mol/liter to 15 mol/liter in the solvent; and
a diluent comprising an aromatic fluorocarbon, wherein the aromatic fluorocarbon has a formula:

OG Complex Work Unit Chemistry
where R1-R6 are each independently, a hydrogen atom, a fluorine atom, a non-fluorinated C1-C6 alkyl group, or a fluorinated C1-C6 alkyl group, and wherein at least two of R1-R6 include a fluorine atom,
wherein the diluent represents greater than 50% by volume of the electrolyte.