NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SILICONOXIDE INORGANIC MICROPARTICLE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME WITH HIGH CAPACITY

摘要

PURPOSE: A silicon oxide-based (SiO2-X) inorganic microparticle anodic active materials for a high capacity lithium secondary battery and a lithium secondary battery comprising the same are provided to improve the charging and discharging property of a lithium secondary battery. CONSTITUTION: A method for manufacturing mono-dispersed organic-silica microparticles is performed based on a silica precursor as a raw material using a sol-gel method. A method for manufacturing SiO2-X inorganic microparticles comprises the steps of: preparing mono-dispersed organic-silica microparticles; and thermally treating the organic-silica microparticles at the temperature of 1200-1800°C.