Compound based on titanium diphosphate and carbon, preparation process, and use as an active material of an electrode for a lithium storage battery
US7879264B2 · kind B2 · utility
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4References
13Claims
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Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Apr 29, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compound containing titanium diphosphate TiP2O7 and carbon covering at least part of the surface of the TiP2O7 particles presents properties which make it suitable for use as active material of an electrode for a lithium storage battery. A compound of this kind is prepared more particularly by mixing at least one first precursor containing the titanium element with a +4 oxidation state, a phosphorus-based second precursor and an organic precursor containing the carbon element. The mixture then undergoes heat treatment at a temperature of between 500° C. and 800° C. in an inert atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.