Anode material for lithium secondary battery, method for preparing same, and lithium secondary battery

Abstract

A present disclosure is related to a method of manufacturing a negative electrode active material for lithium secondary battery: preparing a primary particle by grinding a carbon source containing 10 to 25 wt % volatile matter; heating and kneading the primary particle to assemble them into a secondary particle; and graphitizing the secondary particle; wherein, the step of assembling the secondary particle is the step of heating and kneading only the primary particle without adding a binder. In addition, it is provided a negative electrode active material for a lithium secondary battery has a retention of 80% discharge capacity of 20 cycles or more.

Dependencies are inferred from the claim text.