POSITIVE ACTIVE MATERIAL PRECURSOR FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY USING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE PREPARED POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY

摘要

PURPOSE: A positive electrode active material precursor is provided to have high tap density, to improve energy density and electric conductivity, and to have excellent charging/discharging properties and life time properties. CONSTITUTION: A positive electrode active material precursor comprises metal oxide in chemical formula 1: Ni_aCo_bM_cMn_d_3O_4. In chemical formula 1, M is transition metal element, 0.2=a=0.9. 0=b=0.5. 0=c=0.05. 0.1=d=0.9, and a+b+c+d=1. The metal oxide in chemical formula 1 is spherical powder shaped, has the average particle diameter of 5-15 micron, the tap density of 1.0-2.0 g/cc, and the surface area of 1.0-10.0 m^2/g.