Method for preparing a lithium and vanadium oxide of the Li1+xV3O8 type
US7959893B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Nov 18, 2027 |
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 a method for preparing a lithium and vanadium oxide and the thus obtained products. The method comprises preparing a precursor gel by reacting hydrogen peroxide with α-V2O5 in an aqueous medium in the presence of a lithium precursor and exposing the gel to a heat treatment in an oxidant atmosphere at a temperature ranging from 260° C. to 580° C. A compound of a formula Li1+xV3O8, (0.1<x<0.25) comprises needle-shaped grains having a bimodal distibution, wherein the length (L) of the first distribution needles ranges from 10 to 50 μm and the length (L) of the second distribution needles ranges from 1 to 10 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.