▎ 摘　　要

NOVELTY - Preparing highly dispersed graphene-based conductive paste comprises (1) dispersing the graphene-based conductive additive in 5-45 mmol/l tannic acid solution, (2) adding the iron salt into the solution, stirring for 15-60 minutes, centrifuging, washing, and drying to obtain modified graphene-based conductive additive, and (3) dispersing the modified graphene-based conductive additive into water to obtain highly dispersed graphene-based conductive paste. USE - The graphene-based conductive paste is useful in lithium/sodium/potassium ion batteries (claimed). ADVANTAGE - The method solves problem that stacking and agglomeration of graphene is very easy to occur in the existing graphene conductive paste, cannot be uniformly contacted with active materials in electrode preparation and cannot build an efficient electronic conductive network, and utilizes strong coordination ability of tannic acid and iron ions to form layer of hydrophilic complexes on the surface of graphene-based materials. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) graphene-based conductive paste; (2) anode material of lithium/sodium/potassium ion battery; and (3) lithium/sodium/potassium ion battery.