Positive electrode active material for lithium secondary battery including core containing lithium cobalt oxide and shell being deficient in lithium, and method of preparing the same
US10559824B2 · kind B2 · utility
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Key dates
| Filing date | Aug 29, 2017 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Sep 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a positive electrode active material particle for a secondary battery, including a core part containing lithium cobalt oxide; and a shell part that is located on the surface of the core part and contains lithium-deficient cobalt oxide which is deficient in lithium because a molar ratio of lithium to cobalt is 0.9 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.