Composite cathode active material, and cathode and lithium battery comprising composite cathode active material
US11239456B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Oct 24, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.