US 11,942,599 B2
Symmetrical or asymmetrical alkylsulfonyl imide or cyclic alkylene sulfonylimide salts as cathode additives, electrolyte additives, or SI anode additives for SI anode-based li-ion cells
Liwen Ji, Irvine, CA (US); and Benjamin Park, Irvine, CA (US)
Assigned to Enevate Corporation, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on Oct. 22, 2021, as Appl. No. 17/508,348.
Claims priority of provisional application 63/106,718, filed on Oct. 28, 2020.
Prior Publication US 2022/0131193 A1, Apr. 28, 2022
Int. Cl. H01M 10/0525 (2010.01); C07C 317/28 (2006.01); H01M 4/38 (2006.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0567 (2013.01) [C07C 317/28 (2013.01); H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0028 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An energy storage device comprising:
an anode and a cathode, where at least one of the anode or the cathode contains an electrode additive;
a separator between the anode and the cathode; and
an electrolyte composition; wherein
said electrode additive comprises an asymmetrical alkylsulfonyl imide or alkylene sulfonylimide salt; and
wherein the electrode additive is of formula (Ia) or (Ib):

OG Complex Work Unit Chemistry
wherein X is Na, K, Rb, Cs, Fr, Mg, Ca, Zn or Al;
R1 and R2 are different and are selected from the group consisting of H, OH, alkylene, alkoxy, alkenyl, alkenylene, alkynyl, alkynylene, cycloalkyl, cycloalkylene, aryl, arylene, heteroaryl, heteroalkyl, heteroalkylene, heterocycloalkyl, and heterocycloalkylene, which may be also further optionally substituted.