Lithium cobalt oxide based compounds with a cubic secondary phase
US10044035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium metal oxide powder for a cathode material in a rechargeable battery, comprising a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the metal M has the formula M=Co1−aM′a, with 0≤a≤0.05, wherein M′ is selected from one or more metals of the group consisting of Al, Ga and B; and the surface layer comprising a mixture of the elements of the core material Li, M and oxygen, inorganic N-based oxides and a cubic phase oxide having a crystal structure with a Fd-3mS space group, wherein N is selected from one or more metals of the group consisting of Mg, Ti, Fe, Cu, Ca, Ba, Y, Sn, Sb, Na, Zn, Zr and Si.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.