Method of preparing positive electrode active material for lithium secondary battery, positive electrode active material for lithium secondary battery, and positive electrode for lithium secondary battery and lithium secondary battery including the same
US12074307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Oct 10, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of preparing a positive electrode active material for a lithium secondary battery includes mixing a transition metal hydroxide containing transition metals including nickel (Ni), cobalt (Co) and manganese (Mn), a lithium-containing raw material and a doping raw material including at least one doping element selected from the group consisting of Al, Mg, Co, V, Ti, Zr and W and performing a first calcination treatment thereon to prepare a lithium composite transition metal oxide doped with the doping element; and mixing the lithium composite transition metal oxide and a coating raw material including at least one coating element selected from the group consisting of Al, Mg, Co, Ti, Zr and B and performing a second calcination treatment thereon to prepare a positive electrode active material in which a coating layer containing the coating element is formed on the lithium composite transition metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.