Method for producing Si/C composite particles
US11063249B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Feb 14, 2017 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Dec 12, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Composite Si/C particles containing silicon particles located within pores of a carbonaceous matrix are prepared by coating silicon particles with a sacrificial coating layer followed by coating with an organic carbon precursor to form precomposite particles. Thermal treating of the precomposite particles carbonizes the organic carbon precursor and releases the sacrificial material. The composite particles are useful in lithium ion battery anodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.