CATHODE MIXTURE

To provide a cathode mixture configured to increase the discharge capacity of a lithium secondary battery. The cathode mixture is a cathode mixture for lithium secondary batteries, comprising: a cathode active material containing an S element, and diphenyl disulfide as an additive, wherein a content of the diphenyl disulfide in the cathode mixture is less than 13.0 mass % of a total mass (100 mass %) of the cathode mixture.