▎ 摘　　要

NOVELTY - The modified graphene coated electrode pole piece has a current collector foil (1) and graphene layer (2) coated on the two surfaces of the current collector foil. The graphene layer is coated with an electrode active material layer (3). The thickness of graphene layer is set to 0.1-20 microns and the thickness of electrode active material layer is set to 10-300 microns. USE - Modified graphene coated electrode pole piece for lithium secondary battery. ADVANTAGE - The graphene layer improves the conductivity and heat conduction and radiation performance of electrode pole piece, reduces battery internal resistance and improves the electrochemical performance of lithium battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method for modified graphene coated electrode pole piece of lithium secondary battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the structure of the modified graphene coated electrode pole chip of the lithium secondary battery. Current collector foil (1) Graphene layer (2) Electrode active material layer (3)