▎ 摘　　要

NOVELTY - In-situ constructing conductive enhanced network reinforced fiber type electrode comprises (i) centrifuging and concentrating the graphene dispersion liquid, removing the supernatant, repeating for three times to obtain 10-20 mg/g of graphene dispersant, (ii) taking the oxidized graphene and active material, uniformly mixing the two to obtain the spinning liquid for preparing the fibrous electrode, (iii) mixing the ethanol with water according to the volume ratio of 1:1, adding anhydrous calcium chloride to stir, preparing into 3-10 % mass fraction of anhydric chloride solution, (iv) adding 1-2 mg/ml dopamine (DA) in the solution, (v) adding trihydroxymethyl aminomethane, (vi) extruding the spinning stock solution through needle in the prepared coagulation bath, and soaking for 10-30 minutes, and (vii) taking out and drying the obtained fibrous electrode at normal temperature, raising the temperature in argon-hydrogen mixture, and keeping for 6 hours. USE - The method is useful in flexible energy storage material preparation of flexible electronic device e.g. flexible fiber type battery. ADVANTAGE - The method combines the interface of active material and current collector in the fiber electrode prepared by wet spinning, through the preparation process, uses the solvent exchange effect between the coagulation bath and the fiber gel, introduces dopamine in the fibrous electrode and generates in-situ self-polymerization, forms cross-linked network of the polydopamine (PDA) of phenolic hydroxy and amino group, which generates carbonization reaction and is accompanied with the doping of nitrogen element, so as to construct a high-conductivity enhanced network in the fiber-type electrode, ensures the high efficiency and stability of the electronic transfer process in the circulation and deformation process, and greatly improves the service life of the fiber type electrode. The method consumes little time, and is convenient to carry out.