Composite positive active material, method of preparing the same, and lithium secondary battery including positive electrode including the same
US11133501B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite positive active material includes a lithium nickel cobalt aluminum composite oxide. A full width at half maximum (FWHM) of a peak of a (104) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less and an FWHM of a peak of a (108) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less, the peaks being obtained by X-ray diffraction analysis using a CuKα X-ray. A method of preparing the composite positive active material, and a lithium secondary battery including a positive electrode including the composite positive active material are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.