▎ 摘　　要

NOVELTY - A reduced porous graphene oxide comprises pores with size of 2-500 nm. USE - Reduced porous graphene oxide used for sulfur-carbon composite for anode for lithium secondary battery e.g. lithium-sulfur battery (all claimed). ADVANTAGE - The reduced porous graphene oxide has excellent mass transfer ability, and electrolyte wettability, and increased amount of sulfur, and provides lithium secondary battery having reactivity, initial discharge capacity, and charging/discharging characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of reduced porous graphene oxide, which involves (a) preparing a dispersion in which the template particles and graphene oxide are mixed, (b) spray-drying the dispersion to prepare a template particle-graphene oxide composite, and (c) preparing a porous reduced graphene oxide by heat-treating the template particle-graphene oxide complex, in which the porous reduced graphene oxide comprises meso and macropores having size of 2-500 nm; (2) a sulfur-carbon composite, which comprises the reduced porous graphene oxide, and sulfur on at least a portion of the interior and surface of the porous reduced graphene oxide; and (3) a lithium secondary battery, which comprises an anode comprising the sulfur-carbon composite, a cathode, and a separator arranged between the electrodes.