| abstract |
A negative active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same, wherein the negative active material includes a core including a crystalline carbon material, silicon oxide and silicon particles, and an amorphous carbon-containing coating layer positioned on the surface of the core Including a silicon-carbon composite comprising, when measuring X-ray photospectroscoty for the negative active material, the Si peak intensity ratio for the SiO 2 peak (Si/SiO 2 ) is 2.0 to 3.0 It is an active material. |