| abstract |
The invention discloses a preparation method and application of a single crystal ternary material. In the present invention, a single crystal precursor is first prepared, a flux is added during the preparation of the precursor, and a single crystal ternary material is prepared after lithium lithiation is added. The preparation steps are as follows: 1) weigh a certain amount of precursor A; 2) weigh precursor A and flux B in a mass ratio of 1:0.001 to 1, and after mixing evenly, carry out a calcination in an oxygen-containing atmosphere, and the calcined product After crushing, washing with water to remove the flux, and drying to obtain the single crystal ternary precursor C; 3) Mixing the single crystal ternary precursor C and the lithium source in a molar ratio of 1:1 to 1.1, and after mixing uniformly, in an oxygen-containing The secondary calcination is carried out in the atmosphere, and the calcined product is a single crystal ternary material product after being crushed and demagnetized. The invention disassembles the traditional one-step synthesis method into two steps of single crystal precursor synthesis and lithium preparation and roasting. Compared with the single-crystalization process in which lithiation is completed in one step, the mixed arrangement of Li/Ni is reduced, and the single crystal three-phase is improved. Metamaterial capacity and first effect. |