▎ 摘　　要

NOVELTY - The material has a pure water graphene sheet coated with a coal-type pitch that comprises a conductive material. A secondary battery is provided with the conductive material. Wt. % of the conductive material is 6-15. The pure water graphene sheet separates a layer from graphite. The coal-type pitch is coated on a front side of the pure water graphene sheet. A mixture is mixed with the pure water graphene sheet. An electrode active material layer is coated on a current collector. USE - Negative electrode material for a lithium secondary battery. ADVANTAGE - The material improves graphene nano-sheet quality and recycling safety and service life of the secondary battery. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view illustrating a negative electrode material.'(Drawing includes non-English language text)'