▎ 摘　　要

NOVELTY - A graphene aggregate (7) is manufactured by collecting aggregates of graphene (6) after electrochemically peeling graphene considering carbon material (3) containing graphene laminated body as cathode and desorbing cathode in electrolyte solution (2). USE - Manufacture of graphene aggregate for negative electrode carbon material of lithium ion battery (claimed). ADVANTAGE - The lithium ion battery negative electrode material has high electroconductivity, and the lithium ion battery has improved input-output characteristics because the aggregate of graphene is obtained without passing through material containing a graphene laminated body. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for lithium ion battery which uses graphene aggregate of for negative electrode material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the electrochemical cell used for cathode peeling. Electrochemical cell housing (1) Electrolyte solution (2) Carbon material (3) Graphene (6) Graphene aggregate (7)