METHOD FOR MANUFACTURING CO-SB INTERMETALLIC COMPOUND/CARBON NANOCOMPOSITE USING DISPROPORTIONATION REACTION, NANOCOMPOSITE MANUFACTURED THEREBY, AND LITHIUM SECONDARY BATTERY INCLUDING THE NANOCOMPOSITE

摘要

The present invention relates to a method for producing a cobalt-stibium intermetallic compound/carbon nanocomplex by using disproportionation reaction, a nanocomplex produced by the same, and a lithium secondary battery including the same. The method for producing a cobalt (Co)-stibium (Sb) intermetallic compound/carbon nanocomplex by using disproportionation reaction includes the following steps: (a) producing a Co-Sb intermetallic compound by using Co powder and Sb powder; and (b) producing the Co-Sb intermetallic compound/carbon nanocomplex including the Co-Sb intermetallic compound, amorphous Sb (a-Sb), and carbon by making the Co-Sb intermetallic compound react with carbon (C). The nanocomplex is used as a negative electrode material for a secondary battery, particularly a lithium secondary battery to provide high capacity compared to an existing negative material and can have excellent cycle properties and enhance high rate properties.