| abstract |
A negative electrode active material for a lithium secondary battery, a method for producing the same, and a lithium secondary battery comprising the same, wherein the negative electrode active material comprises a core comprising a crystalline carbon material, silicon oxide and silicon particles, and an amorphous carbon- Wherein the Si peak intensity ratio (Si / SiO 2 ) to the SiO 2 peak in the X-ray photospectroscopic measurement of the negative electrode active material is 2.0 to 3.0 It is an active material. |