US 12,074,321 B2
Cathode active materials for lithium ion batteries
Hongli Dai, Los Altos, CA (US); Huiming Wu, San Jose, CA (US); Chi-Kai Lin, Sunnyvale, CA (US); Michael J. Erickson, San Jose, CA (US); Xiaoping Wang, Naperville, IL (US); Yan Li, Westmont, IL (US); Yanjie Cui, Arlington Heights, IL (US); James A. Gilbert, Bolingbrook, IL (US); Zhenzhen Yang, Westmont, IL (US); Anh D. Vu, Lemont, IL (US); Arthur Jeremy Kropf, Westmont, IL (US); Hakim H. Iddir, Hoffman Estates, IL (US); Christopher S. Johnson, Naperville, IL (US); and John David Carter, Bolingbrook, IL (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 21, 2020, as Appl. No. 16/999,328.
Claims priority of provisional application 62/889,967, filed on Aug. 21, 2019.
Prior Publication US 2021/0057740 A1, Feb. 25, 2021
Int. Cl. H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/505 (2013.01) [C01G 53/50 (2013.01); H01M 4/366 (2013.01); H01M 4/483 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 38 Claims
 
1. A plurality of particles comprising a compound represented by Formula (I):
LiαCo1-x-y-zMewMnxNiyAlzOδ  (I)
wherein 0.95≤α≤1.05, 0.005≤x≤0.050, 0.005≤y≤0.040, 0<z≤<0.070, 0≤w≤0.020, and 1.90≤δ≤2.10;
wherein Me is Zr, and
wherein a BET surface area of an average particle is 0.111 to 0.121 m2/g.