Positive electrode active material for secondary battery, method of preparing the same, and lithium secondary battery including the positive electrode active material
US11440807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of preparing a positive electrode active material for a secondary battery is provided, which includes preparing a lithium composite transition metal oxide, and mixing the lithium composite transition metal oxide and a metal borate compound and performing a heat treatment to form a coating portion on surfaces of particles of the lithium composite transition metal oxide. The positive electrode active material prepared includes lithium composite transition metal oxide particles, and a coating portion formed on surfaces of the lithium composite transition metal oxide particles, wherein the coating portion includes lithium (Li)-metal borate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.