▎ 摘　　要

NOVELTY - A lithium-sulfur battery cathode material comprises sulfur-rich polymer having interpenetrating network structure and graphene sheet doped with sulfur-rich polymer. The particle size of sulfur-rich polymer is 100-300 mesh. The amount of graphene sheet is 2-10 layers. USE - Lithium-sulfur battery cathode material for lithium-sulfur battery. ADVANTAGE - The lithium-sulfur battery cathode material is simple, economical, and easy to manufacture on large scale, and has high conductivity, excellent cycle performance and service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of lithium-sulfur battery cathode material; and (2) application of lithium-sulfur battery cathode material for lithium-sulfur battery.