US 12,087,949 B2
Sacrificial salts in Li-rich, defect anti-fluorite compounds in cathodes for prelithiation in lithium ion batteries
Rahul Kamath, Mission Viejo, CA (US); Frederic Bonhomme, Lake Forest, CA (US); Qian Huang, San Diego, CA (US); Heidi Anderson, Irvine, CA (US); Ian Browne, Orange, CA (US); David J. Lee, Irvine, CA (US); Sanjaya Perera, Irvine, CA (US); and Younes Ansari, Irvine, CA (US)
Assigned to Enevate Corporation, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on Nov. 13, 2019, as Appl. No. 16/682,938.
Prior Publication US 2021/0143426 A1, May 13, 2021
Int. Cl. H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01)
CPC H01M 4/62 (2013.01) [H01M 4/0404 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A battery, the battery comprising:
a cathode, an electrolyte solution, and an anode, wherein said cathode comprises an active material, a prelithiation agent in the form of one or more sacrificial lithium salts, and a polymer binder;
wherein said one or more sacrificial lithium salts comprises dilithium ketomalonate at a concentration of 5% by weight;
wherein said battery comprises a silicon-dominant anode having Si content of >50%; and wherein said Si is present as silicon particles.