Method for preparing silicon-carbon-graphene composite, composite prepared according thereto, and secondary battery to which same is applied
US11362326B2 · kind B2 · utility
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Key dates
| Filing date | May 23, 2017 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present invention provides a method for preparing a silicon-carbon-graphene composite, comprising the steps of: (step 1) adding a carbon precursor solution to silicon and performing wet grinding so as to prepare a suspension: (step 2) forming a silicon-carbon composite by spray drying the suspension; and (step 3) spray drying and heat treating a solution comprising the silicon-carbon composite and graphene oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.