METHOD FOR PREPARING CARBON NANOSTRUCTURE COMPRISING MOLYBDENUM DISULFIDE, LITHIUM SECONDARY BATTERY CATHODE COMPRISING CARBON NANOSTRUCTURE COMPRISING MOLYBDENUM DISULFIDE, PREPARED THEREBY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

A method for preparing a carbon nanostructure including molybdenum disulfide is discussed. More particularly, a method is discussed for preparing a carbon nanostructure in which molybdenum disulfide is located on the surface by melt diffusion and heat treatment of a mixture of a molybdenum precursor, a carbon nanostructure, and sulfur. Also, a positive electrode of a lithium secondary battery including a carbon nanostructure including molybdenum disulfide as an additive, and a lithium secondary battery including the same. In the case of the lithium secondary battery including the positive electrode to which the carbon nanostructure including molybdenum disulfide was applied, the carbon nanostructure including the molybdenum disulfide adsorbs lithium polysulfide (LiPS) generated during the charging/discharging process of the lithium secondary battery, thereby increasing the charging/discharging efficiency of the battery and improving lifetime characteristics.