Positive electrode including sulfur-carbon composite and lithium-ion secondary battery including the same

A positive electrode for a lithium-sulfur battery, the positive electrode including a positive electrode active material comprising a mixture of a first sulfur-carbon composite and a second sulfur-carbon composite,

• wherein the first sulfur-carbon composite comprises a first porous carbonaceous material and sulfur, and the first carbonaceous material has a BET specific surface area of 1,600 m2/g or more and 80 vol % or more of pores having a diameter of less than 3 nm based on 100 vol % of the total pores, and
• the second sulfur-carbon composite comprises a second porous carbonaceous material and sulfur, and the second carbonaceous material has a BET specific surface area of equal to or larger than 1,000 m2/g and less than 1,600 m2/g and 50 vol % or less of pores having a diameter of less than 3 nm based on 100 vol % of the total pores.