The invention relates to the field of
electrode materials for all-
vanadium redox batteries (VRB), in particular to a preparation method of a high-performance
graphene modified carbon felt applicable to the all-
vanadium redox battery, and solves the problems of low
conductivity, low specific surface area, low electrochemical activity, low
vanadium ion pair
catalysis performance, low single-batteryperformance, high cost and the like of a commercial
carbon felt for a vanadium battery at the present stage. The
graphene modified carbon felt is prepared from the commercial
carbon felt by using a
chemical vapor deposition (CVD) method. The composite
carbon felt prepared according to the preparation method disclosed by the invention is high in
conductivity, high in specific surface area, high inelectrochemical
catalysis performance, excellent in
chemical stability, good in VRB battery performance and low in cost. The preparation method disclosed by the invention has the advantages of simpleoperation, feasibility, low product cost, favorability for industrial production, environmental friendliness and the like, and can be widely applied to the field of VRBs.