Positive electrode active material for lithium secondary battery, comprising lithium cobalt oxide for high voltage, and method for preparing same
US11081695B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Feb 18, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a positive active material for a rechargeable lithium battery, the active material including a dopant and having a crystalline structure in which metal oxide layers (MO layers) including metals and oxygen and reversible lithium layers are repeatedly stacked, wherein in a lattice configured by oxygen atoms of the MO layers adjacent to each other, the dopant time of charge, thereby forming a lithium trap and/or lithium dumbbell structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.