Composite positive-electrode material and preparation method thereof, positive-electrode plate, secondary battery, and battery module, battery pack, and apparatus containing such secondary battery
US11855277B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Oct 21, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 21, 2042 |
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 positive-electrode plate, a secondary battery, and a battery module, a battery pack, and an apparatus containing such secondary battery. The composite positive-electrode material includes a core and a coating layer covering at least part of a surface of the core, where the core includes a positive-electrode pre-lithiation material, the positive-electrode pre-lithiation material includes a lithium-rich metal oxide, and the coating layer includes a positive-electrode active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.