SACRIFICIAL POSITIVE ELECTRODE MATERIAL WITH REDUCED GAS EMISSIONS, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present technology relates to a sacrificial positive electrode material with a reduced gas generation amount and a method of preparing the same, and the sacrificial positive electrode material can reduce the generation of gas, particularly, oxygen (O2) gas, during charging and discharging of a battery after activation and achieve a high charge/discharge capacity by including a lithium cobalt metal oxide represented by Chemical Formula 1, which is doped with a specific fraction of zinc, and having a powder electrical conductivity adjusted within a specific range, and thus the stability and lifespan of a battery including the same are effectively enhanced.