Doped nickelate compounds
US9774035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Aug 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to novel materials of the formula: A1-δM1VM2WM3XM4YM5ZO2 wherein A is one or more alkali metals comprising sodium and/or potassium either alone or in a mixture with lithium as a minor constituent; M1 is nickel in oxidation state +2; M2 comprises a metal in oxidation state +4 selected from one or more of manganese, titanium and zirconium; M3 comprises a metal in oxidation state +2, selected from one or more of magnesium, calcium, copper, zinc and cobalt; M4 comprises a metal in oxidation state +4, selected from one or more of titanium, manganese and zirconium; M5 comprises a metal in oxidation state +3, selected from one or more of aluminum, iron, cobalt, molybdenum, chromium, vanadium, scandium and yttrium; wherein 0≦δ≦0.1 V is in the range 0<V<0.5; W is in the range 0<W≦0.5; X is in the range 0≦X<0.5; Y is in the range 0≦Y<0.5; Z is ≧0; and further wherein V+W+X+Y+Z=1. Such materials are useful, for example, as electrode materials in sodium ion battery applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.