▎ 摘 要
NOVELTY - Sulfur-carbon composite comprises a porous carbon material and sulfur in at least a portion of the interior and surface of the porous carbon material, where the porous carbon material has an electrical conductivity of greater than or equal to 24.5 S/cm at a powder density of 0.58 g/cc. USE - The composite is useful in a positive electrode used for a lithium-sulfur battery. ADVANTAGE - The composite is superb in terms of electrochemical reactivity, can provide a lithium-sulfur battery including same can be made to have high capacity, high output and longevity and improves overvoltage of the battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for manufacturing the composite involving (a) heat-treating the porous carbon material under an inert gas atmosphere and (b) mixing the heat-treated porous carbon material with sulfur to obtain the product; (2) a positive electrode for a lithium-sulfur battery comprising the composite; and (3) the lithium-sulfur battery comprising the positive electrode for the lithium-sulfur battery, a negative electrode comprising a negative electrode active material and an electrolyte.