METHOD OF DEPOSITING SILICON ON CARBON NANOMATERIALS
First Claim
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1. A method of depositing silicon on the interior and exterior surfaces of a carbon nanomaterial comprising:
- providing a carbon nanomaterial selected from vapor grown carbon nanofibers, a carbon nanomat, and a powder comprising carbon nanofibers;
flowing a silicon-containing precursor gas in contact with said carbon nanomaterial for a time sufficient for said gas to decompose and form a silicon coating on said surfaces of said carbon nanomaterial.
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Abstract
A method of depositing silicon on carbon nanomaterials such as vapor grown carbon nanofibers, nanomats, or nanofiber powder is provided. The method includes flowing a silicon-containing precursor gas in contact with the carbon nanomaterial such that silicon is deposited on the exterior surface and within the hollow core of the carbon nanomaterials. A protective carbon coating may be deposited on the silicon-coated nanomaterials. The resulting nanocomposite materials may be used as anodes in lithium ion batteries.
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27 Claims
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1. A method of depositing silicon on the interior and exterior surfaces of a carbon nanomaterial comprising:
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providing a carbon nanomaterial selected from vapor grown carbon nanofibers, a carbon nanomat, and a powder comprising carbon nanofibers; flowing a silicon-containing precursor gas in contact with said carbon nanomaterial for a time sufficient for said gas to decompose and form a silicon coating on said surfaces of said carbon nanomaterial. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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