Composite positive electrode material and preparation method thereof, secondary battery, battery group including secondary battery, and electric apparatus including secondary battery
US12107266B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jul 26, 2022 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Feb 13, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application provides a composite positive electrode material and a preparation method thereof, a secondary battery, a battery group including the secondary battery, and an electric apparatus including the secondary battery. The composite positive electrode material includes a lithium-rich metal oxide and a positive electrode active material covering at least a partial surface of the lithium-rich metal oxide, where the positive electrode active material is formed through in-situ reaction between a positive electrode active material precursor and a free lithium compound on the surface of the lithium-rich metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.