▎ 摘　　要

NOVELTY - Metal-lithium composite material comprises metal lithium, graphene roll and oxidation graphene. The graphene rolls and the graphene oxide are dispersed in the lithium metal. USE - Metal-lithium composite material for cathode sheet of lithium battery used in electric device e.g. notebook computer and smartphone. ADVANTAGE - The metal-lithium composite material has good stability and better lithium-ion diffusion uniformity. It is not easy to generate lithium dendritic cathode, which can improve the electrochemical performance and safety performance of the lithium battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparing the metal lithium composite material; a cathode sheet; a lithium battery; and an electric device. DESCRIPTION OF DRAWING(S) - The drawing shows a discharge specific capacity of 600 times of the cycle of the lithium battery prepared respectively in Example 1 and Comparative Example 1. (Drawing includes non-English language text). 600Discharging cycle