Patent ID: 11955635
Assignee: BEIJING EASPRING MATERIAL TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 9:
10. A method for preparing a single-crystal multi-element cathode material according to claim 1, comprising the following steps:
(1) Performing first sintering on a mixture containing a nickel-cobalt-manganese precursor and a lithium source, and crushing an obtained product to obtain a single-crystal cathode material process product;
(2) Performing second sintering on the single-crystal cathode material process product to obtain a single-crystal multi-element cathode material;
The first sintering comprises a temperature rise stage I and a constant temperature stage I which are sequentially carried out, wherein the temperature rise stage I is carried out in an oxygen atmosphere, and the constant temperature stage I is carried out in an air atmosphere;
The temperature of the second sintering is not higher than that of the first sintering.