US 12,206,100 B2
Mono-grain cathode materials
Hongli Dai, Los Altos, CA (US); Huiming Wu, San Jose, CA (US); Dapeng Wang, Cupertino, CA (US); John David Carter, Bolingbrook, IL (US); Yan Li, Westmont, IL (US); Anh D. Vu, Lemont, IL (US); Xiaoping Wang, Naperville, IL (US); Christopher S. Johnson, Naperville, IL (US); Rui Xu, Lemont, IL (US); Zhenzhen Yang, Westmont, IL (US); Yanjie Cui, Arlington Heights, IL (US); James A. Gilbert, Bolingbrook, IL (US); Arthur Jeremy Kropf, Westmont, IL (US); and Hakim H. Iddir, Hoffman Estates, IL (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 21, 2020, as Appl. No. 16/999,265.
Claims priority of provisional application 62/889,927, filed on Aug. 21, 2019.
Prior Publication US 2021/0057739 A1, Feb. 25, 2021
Int. Cl. H01M 4/505 (2010.01); H01M 4/04 (2006.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/505 (2013.01) [H01M 4/0435 (2013.01); H01M 4/0471 (2013.01); H01M 4/525 (2013.01); H01M 2004/028 (2013.01)] 6 Claims
 
1. A cathode material comprising a plurality of particles, the particles comprising a compound represented by Formula:
Liα(Co1-x-y-zMnxMezAly)Oδ,
wherein 0.95<α<1.05, x<1.00, 0<y≤0.04, 0<z≤0.050, and δ=2,
wherein Me is Ni,
wherein the particles have a particle size distribution with a D50 ranging from 10 μm to 20 μm;
wherein the particles have D10 less than 8 μm; and
wherein the D99 of the particles ranges from 25 μm to 35 μm.