SILICON/CARBON COMPOSITE, SILICON ALLOY/CARBON COMPOSITE, AND METHODS FOR PRODUCING THE SAME
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United States of America Patent
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Apr 28, 2016
app pub date -
Oct 27, 2015
filing date -
Oct 28, 2014
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Abstract
A silicon/carbon composite or a silicon alloy/carbon composite is formed with a homogeneous silicon-containing thin film or silicon-containing alloy thin film on the surface of a conductive carbon material, where the composite may be used for a large-capacity electrical storage device when used as a negative electrode material for forming an electrical storage device negative electrode, and exhibits excellent charge-discharge cycle characteristics. A carbon-containing thin film is formed on a surface of a conductive carbon material by chemical vapor deposition (CVD) that utilizes a carbon-containing gas and a silicon-containing thin film or a silicon-containing alloy thin film is formed on the conductive carbon material by chemical vapor deposition (CVD) that utilizes a silicon-containing gas alone, or utilizes a silicon-containing gas and a carbon-containing gas.
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