NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

摘要

Provided is an anode active material for a lithium secondary battery, comprising: composite particles including silicon particles and a carbon coating layer for coating the surface of the silicon particles; and a carbon nanofiber structure including a lattice space formed by entangling carbon nanofibers, wherein the composite particles are placed inside the lattice space of the carbon nanofiber structure in contact with the outer surfaces of the carbon nanofibers, the diameters of the carbon nanofibers are greater than the diameters of the composite particles, and the diameters of the carbon nanofibers range from 100 to 2000 nm. Also, provided are a manufacturing method of the anode active material and a lithium secondary battery including the anode active material.