Conducting Single Crystal Silicon Particles Coated by Metal Nanoparticles and Ultrathin Metal Film High Capacity Lithium Anode Materials including the same and Manufacturing Method thereof

摘要

Conductive single crystal silicon particles coated with metal nanoparticles and a metal ultra thin film, a negative electrode active material for a high capacity secondary battery comprising the same, and a method of manufacturing the same. A conductive single crystal silicon particle doped with at least one element selected from group 3 (III) and group 5 (V) elements obtained from a by-product generated in the process of manufacturing a silicon substrate for a solar cell; A metal thin layer coated on the surface of the conductive single crystal silicon particles; And metal nanoparticles coated on the surface of the conductive single crystal silicon particles through a simple wet process that does not require additional reduction heat treatment.