| abstract |
The present invention provides a sulfur-carbon composite in which sulfur is thinly and uniformly coated on the surface of a carbon-based material, comprising the steps of: (a) mixing the carbon-based material with sulfur or a sulfur compound; (b) the sulfur-carbon mixture mixed in step (a) and the vaporizable liquid in step (c) below are put in a sealed container, at this time, the vaporizable liquid is 10 parts by weight based on 100 parts by weight of the sulfur-carbon mixture Putting in ~300 parts by weight; And (c) heating the sealed container to a temperature of 120 to 200 ℃; sulfur-carbon composite prepared by a method comprising, a positive electrode for a lithium secondary battery comprising the sulfur-carbon composite, and the positive electrode A lithium secondary battery is provided. |