| 摘要 |
PURPOSE: A cathode active material for lithium secondary cell and method for manufacturing the same is provided to reduce specific surface area by uniformly mixing crystalline carbon and amorphous carbon. CONSTITUTION: A method comprises the first step of preparing amorphous carbon precursor solution by dissolving amorphous carbon precursor in organic solvent; the second step of coating crystalline carbon with the amorphous carbon precursor solution prepared in the first step; the third step of vacuum-drying, at a pressure of 10 Torr or lower, the crystalline carbon coated with the amorphous carbon precursor solution; and the fourth step of carbonizing the dried carbon under inert atmosphere at a temperature of 500 to 2000 °C. The cathode active material for lithium secondary cell manufactured by the method, includes a crystalline carbon core and a graphitizer metal formed onto the crystalline carbon core. |
