US 12,278,365 B2
Fluorine substituted cation-disordered lithium metal oxides and methods of making same
Gerbrand Ceder, Orinda, CA (US); and Jinhyuk Lee, Walnut Creek, CA (US)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Appl. No. 16/500,666
Filed by THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
PCT Filed Apr. 5, 2018, PCT No. PCT/US2018/026189
§ 371(c)(1), (2) Date Oct. 3, 2019,
PCT Pub. No. WO2018/187531, PCT Pub. Date Oct. 11, 2018.
Claims priority of provisional application 62/483,112, filed on Apr. 7, 2017.
Prior Publication US 2020/0194790 A1, Jun. 18, 2020
Int. Cl. H01M 4/525 (2010.01); C01G 53/00 (2006.01); C01G 53/42 (2025.01); H01M 4/02 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/525 (2013.01) [C01G 53/42 (2013.01); H01M 10/0525 (2013.01); C01P 2002/72 (2013.01); C01P 2002/76 (2013.01); C01P 2002/85 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2220/30 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A lithium metal oxide having a general formula: Li1+xM1−xO2−yFy, said lithium metal oxide having a cation-disordered rocksalt structure, wherein either:
a) M1−x comprises NiaM′b, where 0.05≤x≤0.2, 0<y≤0.3, and 0.35≤a≤0.50, and M′b is one or more transition metals selected from the group consisting of Ti, Mo, Nb, Sb, Zr, and combinations thereof, and each transition metal M′b is separately present in an amount 0.10≤b≤0.30; or
b) M1−x comprises NiaTiMoc, where 0.05≤x≤0.2, 0<y≤0.3, 0.35≤a≤0.50, 0.10≤b≤0.30, and 0.10≤c≤0.30.