▎ 摘　　要

NOVELTY - The material has single layer graphene provided with a framework. A nano-crystal is uniformly embedded in an upper and lower surface of the single layer graphene whose thickness is 1-50 mm. A precursor mixes ethyl alcohol uniformly with mixed liquid. USE - Graphene composite material for use in a lithium ion battery. ADVANTAGE - The material increases capacity of the lithium ion battery in an effective manner. The method enables providing simple process, improving efficiency, and reducing preparing period. The material is non-toxic and environment friendly, thus avoiding pollution and reduces safety hidden trouble. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene composite material preparing method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene composite material.