Composite cathode active material, cathode and lithium battery including the same, and method of preparing the composite cathode active material
US12406989B2 · kind B2 · utility
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5References
23Claims
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Key dates
| Filing date | Sep 26, 2023 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Sep 26, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite cathode active material and a cathode and a lithium battery including the composite cathode active material. The composite cathode active material has a core including a plurality of primary particles including a nickel-containing first lithium transition metal oxide having a layered crystal structure; a grain boundary disposed between adjacent primary particles of the plurality of primary particles; and a shell on the core, the shell including a second lithium transition metal oxide having a spinel crystal structure, wherein the grain boundary includes a first composition having a spinel crystal structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.