▎ 摘　　要

NOVELTY - The method involves utilizing a nickel-cobalt-manganese ternary lithium material, a conductive agent and adhesive for performing a ball milling and mixing process to obtain a positive electrode mixture. The positive electrode and deionized water are utilized in a stirring and mixing process to obtain positive electrode slurry. Negative electrode slurry is coated on a copper foil substrate or an aluminum foil substrate to obtain the positive electrode and a negative electrode. The positive electrodes and the negative electrodes are alternately arranged to place an isolation film between the adjacent positive electrodes. The copper foil substrate is removed by using acid solution to obtain a graphene monomer film. The graphene monomer film is transferred to a target substrate. A layer of liquid photosensitive resin is coated on a surface of the graphene monomer film. USE - Method for preparing electric core structure (claimed) for use in an electric automobile and an energy storage system field. ADVANTAGE - The method enables increasing the thermal conductivity of the electric core, providing directionally radiating process in the graphene composite film, reducing heat accumulation in the electric core, and improving the performance of the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an electric core structure. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the method for preparing electric core structure (Drawing includes non-English language text).