Metal-doped transition metal hexacyanoferrate (TMHCF) battery electrode
US8968925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is provided for synthesizing a metal-doped transition metal hexacyanoferrate (TMHCF) battery electrode. The method prepares a first solution of AxFe(CN)6 and Fe(CN)6, where A cations may be alkali or alkaline-earth cations. The method adds the first solution to a second solution containing M-ions and M′-ions. M is a transition metal, and M′ is a metal dopant. Subsequent to stirring, the mixture is precipitated to form AxMcM′dFez(CN)n.mH2O particles. The AxMcM′dFez(CN)n.mH2O particles have a framework and interstitial spaces in the framework, where M and M′ occupy positions in the framework. Alternatively, the method prepares AaA′bMyFez(CN)n.mH2O particles. A and A′ occupy interstitial spaces in the AaA′bMyFez(CN)n.mH2O particle framework. A metal-doped TMHCF electrode is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.