ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

1 . A manufacturing method of an anode active material for a lithium secondary battery comprising:

stirring a mixture of a carbon-based particle, a silicon particle, and a first carbon precursor, thereby obtaining a first composite precursor in which the silicon particle dispersed in the first carbon precursor is positioned on the carbon-based particle,

stirring a mixture of the first composite precursor and a second carbon precursor, thereby obtaining a second composite precursor in which the second carbon precursor is positioned on the first composite precursor, and

firing.

2 . The manufacturing method of claim 1 , wherein the silicon particle is an amorphous silicon particle.

3 . The manufacturing method of claim 1 , wherein the stirring in the obtaining of the first composite precursor and/or the second composite precursor is performed by spraying a solvent.

4 . The manufacturing method of claim 1 , wherein 10 wt % or more to 90 wt % or less of the carbon-based particle, 5 wt % or more to 50 wt % or less of the sum of the silicon particle and the first carbon precursor, and 5 wt % or more to 40 wt % or less of the second carbon precursor are mixed with respect to a total mixed amount of the carbon-based particle, the silicon particle, the first carbon precursor, and the second carbon precursor.

5 . The manufacturing method of claim 1 , wherein 0.5 wt % or more to 30 wt % or less of the silicon particle is mixed with respect to a total mixed amount of the carbon-based particle, the silicon particle, the first carbon precursor, and the second carbon precursor.

6 . The manufacturing method of claim 1 , wherein a firing temperature in the firing is 600° C. or more to 700° C. or less.