ANODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND ANODE AND SECONDARY BATTERY EACH COMPRISING SAME

The present invention relates to a negative electrode active material including natural graphite, wherein a D90/D10, which is the ratio of D90 to D10, is 2.20 or less, a D50 is 6 µm to 11 µm, and a BET specific surface area is 2.2 m2/g or less.