US 12,206,097 B2
Coatings for cathode active materials
Huiming Wu, San Jose, CA (US); Hongli Dai, Los Altos, CA (US); Dapeng Wang, Cupertino, CA (US); Hakim H. Iddir, Hoffman Estates, CA (US); Anh Vu, Naperville, IL (US); John David Carter, Bolingbrook, IL (US); Xiaoping Wang, Naperville, IL (US); Yan Li, Westmont, IL (US); Zhenzhen Yang, Godfrey, IL (US); Yanjie Cui, Arlington Heights, IL (US); James Gilbert, Bolingbrook, IL (US); Christopher S. Johnson, Naperville, IL (US); and Arthur Jeremy Kropf, Westmont, IL (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jul. 7, 2023, as Appl. No. 18/348,766.
Application 18/348,766 is a division of application No. 16/531,883, filed on Aug. 5, 2019, granted, now 11,749,799.
Claims priority of provisional application 62/765,116, filed on Aug. 17, 2018.
Prior Publication US 2023/0361283 A1, Nov. 9, 2023
Int. Cl. H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/366 (2013.01) [H01M 4/525 (2013.01); H01M 4/628 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A cathode active material comprising:
a plurality of cathode active compound particles; and
a coating disposed over each of the plurality of cathode active compound particles, the coating comprising a lithium (Li) ion conducting oxide containing lithium (Li), lanthanum (La) and Germanium (Ge), wherein the conductivity of the conducting oxide is controlled by the ratio of La to Li.