▎ 摘　　要

NOVELTY - Method for preparing copper foil-graphene composite negative current collector involves introducing a copper foil into a high-temperature reaction device under the traction drive of a feeding device and a discharging device, introducing protective gas into the reaction device, pre-heating the high-temperature reaction device, introducing hydrocarbon gas into a high-temperature zone of the reaction device when the temperature of the high-temperature zone of the reaction device is 800-1000 degrees C, and pulling out the copper foil of the reaction device through the discharging device. USE - Method is useful for preparing copper foil-graphene composite negative current collector (claimed), which is useful in a lithium battery. ADVANTAGE - The method enables efficient preparation of copper foil-graphene composite negative current collector with excellent bonding strength. The copper foil-graphene composite negative current collector improves electric discharge performance of the battery and prolongs the service life of the battery. DETAILED DESCRIPTION - Method for preparing copper foil-graphene composite negative current collector involves introducing a copper foil into a high-temperature reaction device under the traction drive of a feeding device and a discharging device, introducing protective gas into the high-temperature reaction device, pre-heating the high-temperature reaction device, introducing hydrocarbon gas into a high-temperature zone of the reaction device when the temperature of the high-temperature zone of the reaction device is 800-1000 degrees C, and pulling out the copper foil of the high-temperature reaction device through the discharging device to obtain the copper foil-graphene composite negative current collector. An INDEPENDENT CLAIM is included for copper foil-graphene composite negative current collector prepared by the above method.