Patent ID: 11881582
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A positive electrode active material, comprising:
a core, wherein the core is a lithium-containing phosphate;
a first coating layer, disposed on at least part of surface of the core, wherein the first coating layer is a carbon coating layer co-doped with titanium and nitrogen; and
a second coating layer, disposed on at least part of surface of the first coating layer, wherein the second coating layer comprises Li1+xMxTi2−x(PO4)3, wherein M is at least one element selected from aluminum, lanthanum, indium, zirconium, gallium, and scandium, and 0.2≤x≤0.8.