▎ 摘　　要

NOVELTY - The lithium battery has an anode, a cathode, a diaphragm and an electrolyte. The anode has an anode current collector and an anode material is coated on the anode current collector. The anode current collector is coated with a graphene layer of aluminum foil. The cathode has a cathode collector and a cathode material coated on the negative electrode current collector is coated with the graphene layer of copper foil. USE - Lithium battery used in electric vehicles such as hybrid buses and pure electric buses. ADVANTAGE - The transmission efficiency of the ions and electrons are improved and the energy efficiency of the lithium battery is improved. The charge and discharge efficiency of the lithium battery and the cycle performance is improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of lithium battery. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view of the lithium battery. (Drawing includes non-English language text)