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CATHODE ACTIVE MATERIALS HAVING IMPROVED PARTICLE MORPHOLOGIES

United States Patent Application

*** PATENT GRANTED ***
20180083278
10,084,187
A1
View the Complete Application at the US Patent & Trademark Office
Mixed-metal oxides and lithiated mixed-metal oxides are disclosed that involve compounds according to, respectively, Ni.sub.xMn.sub.yCo.sub.zMe.sub..alpha.O.sub..beta. and Li.sub.i+.gamma.Ni.sub.xMn.sub.yCo.sub.zMe.sub..alpha.O.sub..beta.. In these compounds, Me is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations thereof; 0.ltoreq.x.ltoreq.1; 0.ltoreq.y.ltoreq.1; 0.ltoreq.z.ltoreq.1; x+y+z>0; 0.ltoreq..alpha..ltoreq.0.5; and x+y+.alpha.>0. For the mixed-metal oxides, 1.ltoreq..beta..ltoreq.5. For the lithiated mixed-metal oxides, -0.1.ltoreq..gamma..ltoreq.1.0 and 1.9.ltoreq..beta..ltoreq.3. The mixed-metal oxides and the lithiated mixed-metal oxides include particles having an average density greater than or equal to 90% of an ideal crystalline density.
Dai, Hongli (Los Altos, CA), Wu, Huiming (San Jose, CA), Wang, Dapeng (Sunnyvale, CA)
15/ 804,106
November 6, 2017
U.S. GOVERNMENT LICENSE RIGHTS [0002] This invention was made with U.S. government support under WFO Proposal No. 85F59. This invention was made under a CRADA 1500801 between Apple Inc. and Argonne National Laboratory operated for the United States Department of Energy. The U.S. government has certain rights in the invention.