▎ 摘　　要

NOVELTY - Lithium-carbon composite belt, comprises a conductive substrate, a metal lithium transition layer on at least one side of the substrate, and a lithium-carbon composite material layer positioned outside the metal transition layer, where the lithium-carbon composite material includes a porous carbonaceous framework and metal lithium filled in the pores of the porous carbonaceous framework, and the mass fraction of carbon in the lithium-carbon composite material layer is 15-65%. USE - Used as lithium-carbon composite belt. ADVANTAGE - The method: avoids the problem of bubbling during the manufacturing process of the lithium-carbon composite tape; can reduce the internal resistance of lithium carbon composite tape; can participate in the battery cycle process to make up for the consumption of metal lithium in the lithium-carbon layer; can provide reserved space for the deposition of metal lithium; suppress the volume change of metal lithium during the cycle; and reduces the local current density of the electrode and prevent the formation of lithium dendrites. The lithium-carbon composite tape has high-strength tensile properties, which can be adapted to large-scale industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing lithium-carbon composite tape comprising (i) carrying out pretreatment of substrate under the protection of an inert gas including at least one of degreasing, pre-oxidation, plasma purging, ultrasonic cleaning, and high-temperature treatment of the substrate, (ii) constructing the metal lithium transition layer including rolling, doctor blade coating, extrusion coating, physical vapor deposition, electroplating, and thermal evaporation builds a metal lithium transition layer on the surface of the substrate, (iii) constructing the lithium-carbon composite material layer including doctor blade coating, extrusion coating, and combining the lithium-carbon composite material with the metal lithium transition layer to obtain lithium-carbon composite tape by means of pressure lamination.