Silicon oxide-carbon composite, method of manufacturing the composite, and energy storage device having the composite
AssigneeIndustry-Academia Cooperation Group of Sejong Univ
InventorsSun Jae Kim, Hee June Jung, Kang Seop Yun, Eul Noh
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Abstract
Provided are a silicon oxide-carbon composite, a method of preparing the same, and an energy storage device containing the same. In the method of preparing a silicon oxide-carbon composite, a reaction solution containing an organic solvent including an aromatic compound is provided. Crystalline carbon structures are formed by generating plasma in the reaction solution. A slurry is formed by adding silicon halide and a polyol in the reaction solution in which the crystalline carbon structures are dispersed. The slurry is separated from the organic solvent and subjected to thermal treatment.
Claims16
A method of preparing a silicon oxide-carbon composite, comprising:
- providing a reaction solution containing an organic solvent including an aromatic compound;
- forming a slurry by adding silicon halide and a polyol to the reaction solution, wherein the slurry has a network structure having Si—O bond formed by the reaction between the silicon halide and the polyol;
- removing the organic solvent from the slurry to obtain gel powder;
- and
- performing thermal treatment on the gel powder to obtain the silicon oxide-carbon composite.
Dependencies are inferred from the claim text.