US 11,884,552 B2
Fluorinated cation-disordered rocksalt materials and methods of making thereof
Juhyeon Ahn, Berkeley, CA (US); Dongchang Chen, El Cerrito, CA (US); and Guoying Chen, Oakland, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of The University of California, Oakland, CA (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,491.
Claims priority of provisional application 63/104,738, filed on Oct. 23, 2020.
Prior Publication US 2022/0315436 A1, Oct. 6, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/1315 (2010.01); H01M 4/13915 (2010.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); C01D 15/04 (2006.01); C01G 33/00 (2006.01); C01G 45/00 (2006.01); C01G 23/00 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC C01D 15/04 (2013.01) [C01G 23/002 (2013.01); C01G 33/006 (2013.01); C01G 45/006 (2013.01); H01M 4/0471 (2013.01); H01M 4/1315 (2013.01); H01M 4/13915 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); C01P 2002/77 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for manufacturing lithium metal oxyfluoride having a general formula Li1+x(MM′)zO2-yFy, wherein 0.6≤z≤0.95, wherein 0<y≤0.67, and wherein 0.05≤x≤0.4, the lithium metal oxyfluoride having a cation-disordered rocksalt structure, comprising:
providing at least one lithium-based precursor;
providing at least one redox-active transition metal-based precursor;
providing at least one redox-inactive transition metal-based precursor;
providing at least one fluorine-based precursor comprising a fluoropolymer; and
mixing the at least one lithium-based precursor, the at least one redox-active transition metal-based precursor, the at least redox-inactive transition metal-based precursor, and the at least one fluorine-based precursor comprising a fluoropolymer to form a mixture.