| abstract |
The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery comprising the same and, more specifically, to a positive electrode active material for a lithium secondary battery and a lithium secondary battery comprising the same, wherein a lithium ion diffusion path in a primary particle is formed with directivity toward the center of the particle. The positive electrode active material for a lithium secondary battery of the present invention has a lithium ion diffusion path showing particular directivity within primary and secondary particles, and thus exhibits a high conduction velocity of lithium ions, high lithium ion conductivity, and improved cycle characteristics since the crystalline structure does not collapse in spite of repeated charging and discharging. |