NEGATIVE ACTIVE MATERIAL USED FOR SECONDARY BATTERY, ELECTRODE OF SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME, AND METHOD THEREOF

摘要

PURPOSE: An anode active material for secondary battery is provided to improve discharging capacity and efficiency of secondary battery, and capacity retention. CONSTITUTION: An anode active material for secondary battery contains a carbon material in which a part or entire edge is coated by carbide layer. The PSD (Particle Size Distribution) broad value of anode active material for secondary battery is 0.1-0.85. When pressurizing the anode active material for secondary battery at 2 ton, the pore volume is more than 0.2.