Patent ID: 11862794
Assignee: BATTELLE MEMORIAL INSTITUTE
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. A solid-state method comprising:
making monocrystalline lithium nickel manganese cobalt oxide by
heating a solid hydroxide precursor comprising NiXMnyMzCo1-x-y-z(OH)2 at a temperature TS1 in an oxygen-containing atmosphere for an effective period of time t1 to convert the solid hydroxide precursor to a solid oxide precursor;
combining the solid oxide precursor with a molar excess of a lithium compound;
heating the solid oxide precursor and the lithium compound at a temperature TS2 for an effective period of time t2 to produce a first product;
cooling the first product to ambient temperature;
reducing a mean particle size of the first product to 0.1 μm to 10 μm;
heating the first product having the reduced mean particle size at a temperature TS3 for an effective period of time t3 to produce a second product;
cooling the second product to ambient temperature;
reducing a mean particle size of the second product to 0.1 μm to 10 μm; and
heating the second product having the reduced mean particle size at a temperature TS4 for an effective period of time t4 to produce monocrystalline lithium nickel manganese cobalt oxide having a formula LiNiXMnyMzCo1-x-y-zO2,
where M represents one or more dopant metals, x≥0.6, 0.01≤y<0.2, 0≤z≤0.05, and x+y+z≤1.0.