Patent ID: 11916229
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. The positive electrode active material according to claim 1, wherein the positive electrode active material satisfies at least one of the following conditions (1) to (4):
(1) the Li/Mn antisite defect concentration of the positive electrode active material is 4% or less;
(2) the lattice change rate of the positive electrode active material is 6% or less;
(3) the surface oxygen valence state of the positive electrode active material is −1.88 or less; and
(4) the compacted density of the positive electrode active material under 3 tons is 2.0 g/cm3 or more.