▎ 摘　　要

NOVELTY - The cathode active material has a sulfur portion which is equipped in internal porous of a porosity graphene sheet in which a carbon layer is provided. The surface of carbon layer is provided in at least some of internal porous and surface of porosity graphene sheet. The carbon layer is provided with graphite, graphene, carbon nanotube, carbon black and mesoporous carbon. The surface of porosity graphene sheet is treated with amphiphile. USE - Cathode active material for lithium-sulfur battery (claimed) installed in electric vehicle, hybrid electric vehicle, and plug-in hybrid electric vehicle. ADVANTAGE - The reaction area increment of active material of the battery is attained, the contact characteristic improvement with electrolyte is attained, and the electrode conductivity is improved. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) the lithium-sulfur battery; and (2) the manufacturing method of the cathode active material for the lithium-sulfur battery.