▎ 摘　　要

NOVELTY - Graphene conductive agent for lithium battery comprises (i) adding polymer surfactant solution to graphene oxide powder, ultrasonically peeling to obtain graphene oxide, filtering, washing with water to pH of 7 and drying to obtain pre-treated graphene oxide; (ii) mixing the pretreated graphene oxide and ammonium hydrogen carbonate in a mass ratio of 1-2:3-5, grinding for 30 minutes, where the microwave power is 600-800 W, and microwave stripping for 4-6 minutes to obtain layered graphene oxide (iii) and carbon black (iv) mixing a layered graphene and the carbon black according to the mass ratio 8-10:1-2, under nitrogen atmosphere, pyrolyzing in a muffle furnace at 950-1050?? C for 1 hour, and drying. USE - Preparation method of graphene conductive agent for lithium battery. ADVANTAGE - The graphene of the conductive agent has high efficiency and short time consumption, small defect, large purity, not suitable for reunion, good stability and good conductivity. The lithium ion battery has higher electrochemical performance and simple preparation method, and is easy to realize industrial production. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: A lithium-ion battery; and A preparation method of the lithium-ion battery.