CARBON NANOTUBE-COATED SILICON/METAL COMPOSITE PARTICLE AND THE PREPARATION METHOD THEREOF, AND NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME

摘要

PURPOSE: A carbon nano tube-coated silicon-metal composite particle, a manufacturing method thereof, an anode for a secondary battery including thereof, and the secondary battery including thereof are provided to reduce an initial irreversible capacity, and to maintain a mechanical stability and an electric conductivity. CONSTITUTION: A carbon nano tube-coated silicon-metal composite particle includes a carbon nano tube coated on a composite particle. The composite particle is a silicon-metal composite particle formed by including a compound phase between a metal particle and a silicon particle. A manufacturing method of the silicon-metal composite particle comprises the following steps: preparing the composite particle of metal and silicon; and forming the carbon nano tube on the surface of the composite particle by heat-treating the composite particle under the atmosphere of inert gas and hydrocarbon gas and by the pyrolysis and carbonization of the hydrocarbon gas.