▎ 摘　　要

NOVELTY - The material has 69-89 wt.% elemental sulfur provided on a graphite alkenyl nitrogen-doped porous carbon nanotube. A carbon nano-level multi-hole structure includes microporous and mesoporous with gathering pore diameter of 0.8-6 nm, a specific surface area of 800-1600 m2g, and pore volume of 0.7-1.2 S cm2g-1. USE - Nitrogen-doped porous graphene carbon nano/sulfur composite material for a lithium-sulfur battery (claimed). ADVANTAGE - The material improves carbon nanosheet/capacity of sulfur in composite material for the lithium sulfur battery, stability, coulomb efficiency and multiplies power property. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a nitrogen-doped porous graphene carbon nano/sulfur composite material preparation method (2) a lithium-sulfur battery. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of a nitrogen-doped porous graphene carbon nano/sulfur composite material.