Sodium layered oxides as cathode materials for sodium ion batteries and method of manufacturing the same
US12030786B2 · kind B2 · utility
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Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composition of general formula (1): Nax[MnaNibCrc]O2+y (1), wherein: 0.6≤x≤0.8; −0.1≤y≤0.1; 0.55≤a≤0.7; 0.25≤b≤0.3; c≤0.05; and a+b+c≤1.0, an intermediate product for preparing a composition of general formula (1) and a process of synthesis, wherein the mixed sodium-transition metal oxide of general formula (1) may generally show an essentially or solely P2 structure, and may be used as a positive electrode material for a sodium ion secondary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.