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US 11,870,060 B2Granted
Composite, electrochemical active material composite using the composite, electrode including the composite or electrochemical active material composite, lithium battery including the electrode, field emission device including the composite, biosensor including the composite, semiconductor device including the composite, and thermoelectric device including the composite
AssigneeSamsung Electronics Co., Ltd.
InventorsInhyuk Son, Jonghwan Park, Jaejun Chang, Junhwan Ku, Xiangshu Li, Jaeman Choi
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Abstract
A composite including: at least one selected from a silicon oxide of the formula SiO2 and a silicon oxide of the formula SiOx wherein 0<x<2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.
Claims10
A method of preparing a composite, the method comprising:
- contacting a reaction gas and silicon dioxide to provide a reaction gas-contacted silicon dioxide, wherein the reaction gas comprises a carbon source gas;
- and
- thermally treating the reaction gas-contacted silicon dioxide to prepare the composite,
- wherein the composite comprises
- particles comprising
- a silicon oxide of the formula SiO2 and a silicon oxide of the formula SiOx wherein 0<x<2, or
- a silicon oxide of the formula SiOx wherein 0<x<2, and graphene,
- wherein the particles comprising the silicon oxide of the formula SiO2 and the silicon oxide of the formula SiOx wherein 0<x<2, or the silicon oxide of the formula SiOx wherein 0<x<2, are surrounded by the graphene and are interconnected with each other in a graphene matrix.
5 more elements
Dependencies are inferred from the claim text.