Silicon composite, making method, and non-aqueous electrolyte secondary cell negative electrode material
US9608262B2 · kind B2 · utility
26Cited by
10References
13Claims
0Family size
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Key dates
| Filing date | Mar 2, 2015 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Mar 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A silicon composite comprises silicon particles whose surface is at least partially coated with a silicon carbide layer. It is prepared by subjecting a silicon powder to thermal CVD with an organic hydrocarbon gas and/or vapor at 900-1,400° C., and heating the powder for removing an excess free carbon layer from the surface through oxidative decomposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.