▎ 摘　　要

NOVELTY - Preparation of light-weight, high-conductivity flexible lithium battery current collector material comprises dispersing graphene oxide filter cake in deionized water, and obtaining graphene oxide gel after 1-12 hours of rotation; making graphene oxide gel into graphene oxide gel film with thickness of 50-150 mu m, and placing graphene oxide gel film at room temperature to dry naturally to obtain graphene oxide film; and placing graphene oxide film in high-temperature furnace, slowly heating to 1300 degrees C in high-temperature furnace with argon atmosphere, maintaining for 2 hours, slowly heating to 3000 degrees C, and keeping at 3000 degrees C for 1 hour. USE - The method is used for preparing light-weight, high-conductivity flexible lithium battery current collector material. ADVANTAGE - The method has lighter weight per unit area, and can take section of work of storing lithium, which can increase overall energy density of lithium ion battery.