Process for the preparation of SiOx having a nanoscale filament structure and use thereof as anode material in lithium-ion batteries
US10329157B2 · kind B2 · utility
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Key dates
| Filing date | Nov 28, 2014 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Nov 28, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for the preparation of nanofilament particles of SiOx in which x is between 0.8 and 1.2, the process comprising: a step consisting of a fusion reaction between silica (SiO2) and silicon (Si), at a temperature of at least about 1410° C., to produce gaseous silicon monoxide (SiO); and a step consisting of condensation of the gaseous SiO to produce the SiOx nanofilament particles. The process may also comprising using carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.