▎ 摘　　要

NOVELTY - Electrode-forming composition comprises at least one vinylidene fluoride (VDF) polymer; at least one polar organic solvent; and a graphene oxide having an oxygen content of no more than 25 wt.%; where the VDF polymer comprises recurring units derived from VDF and from at least one (meth)acrylic monomer (MA). USE - The electrode-forming composition is useful for manufacturing electrode structure (all claimed); and for manufacturing electrode of secondary lithium batteries. ADVANTAGE - Graphene can be used as an effective conductive additive in an electrode, by providing a solvent based electrode-forming composition where the graphene is well dispersed in organic solvent together with at least one VDF polymer, with or without an electrode active material. Oxidized graphene material can be well dispersed in the polar organic solvent of the composition while providing a desired conductivity for the working electrode, given that the oxygen content of the graphene does not exceed 25 wt.%. Starting from the electrode-forming composition, active electrodes using graphene as conductive additive can be successfully produced. Compared to a commonly used electrode with 5 wt.% carbon black conductive agent, the electrodes attain an equivalent conductivity and a better kinetic behavior with merely 1 wt.% of graphene oxide. Moreover, the specific selection of VDF copolymer in the composition helps form an electrode with better conductivity and discharging capacity, compared to the control reference. DETAILED DESCRIPTION - Electrode-forming composition comprises at least one vinylidene fluoride (VDF) polymer; at least one polar organic solvent; and a graphene oxide having an oxygen content of no more than 25 wt.%; where the VDF polymer comprises recurring units derived from VDF and from at least one (meth)acrylic monomer (MA) of formula (I). R1, R2 and R3=the same or different from each other, independently selected from a hydrogen atom and a 1-3C hydrocarbon group; and Roh=a hydrogen atom or a 1-5C hydrocarbon moiety comprising at least one hydroxyl group. INDEPENDENT CLAIMS are: (1) a process for preparing an electrode-forming composition comprising mixing the VDF polymer and the graphene oxide having an oxygen content of no more than 25 wt.% in the polar organic solvent to form a dispersion; or a process for preparing an electrode-forming composition comprising: (A) obtaining a dispersion of the graphene oxide and the electrode active material in the organic solvent;(B) preparing an organic solution of the VDF polymer in the same organic solvent used in step (A); and (C) combining the dispersion of step (A) and the organic solution of step (B) by mechanical stirring, where the sequence of step (A) and step (B) is optionally reversed; and (2) a process for manufacturing an electrode structure using the electrode-forming composition, comprising applying the electrode-forming composition onto at least one surface of a substrate.