Positive electrode active material for secondary battery and method of preparing the same
US11121357B2 · kind B2 · utility
2Cited by
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14Claims
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Key dates
| Filing date | Feb 2, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Feb 2, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a positive electrode active material for a secondary battery, which includes a core including a lithium composite metal oxide, and a surface treatment layer which is disposed on the core and includes an amorphous oxide containing a lithium (Li) oxide, a boron (B) oxide, and an aluminum (Al) oxide, wherein an amount of a lithium by-product present on a surface of the positive electrode active material is less than 0.55 wt % based on a total weight of the positive electrode active material, and a method of preparing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.