▎ 摘　　要

NOVELTY - Preparing liquid flow battery integrated electrode involves: (S1) uniformly mixing a mixture consisting of plastic, conductive additive and additive, and processing to obtain a bipolar plate (3); (S2) heat treating or acid treating a graphite felt (2) to obtain a pretreated graphite felt; (S3) soaking the bipolar plate in a volatile solvent, and taking out; (S4) closely attaching the two pretreated graphite felts to both sides of the bipolar plate with the solvent attached to the surface to form a graphite felt/bipolar plate/graphite felt sandwich structure; and (S5) stacking the graphite felt/bipolar plate/graphite felt sandwich structure in multiple layers, placing in a device containing copper sheets to fix, tightly attaching the graphite felt/bipolar plate/graphite felt sandwich structure by using tablet press, applying direct current or alternating current, and embedding the graphite felt carbon fiber in the bipolar plate to form integrated electrode. USE - The method is useful for preparing liquid flow battery integrated electrode used in renewable energy sources such as wind energy, solar energy and tidal energy, power system of peak clipping and valley filling and spare power station of important facilities. ADVANTAGE - The method reduces the internal resistance in the finished integrated electrode, improves the efficiency of the flow battery, is simple in operation, short in production time, energy saving, and environmentally-friendly, produces multiple integrated electrodes at one time, ensures high efficiency, and can be carried out industrially on a large scale. DETAILED DESCRIPTION - Preparing liquid flow battery integrated electrode involves: (S1) uniformly mixing a mixture consisting of 40-60 wt.% plastic, 30-59 wt.% conductive additive and 1-10 wt.% additive, and processing to obtain a plate shape with a thickness of 0.6-1.4 mm to obtain a bipolar plate (3); (S2) heat treating or acid treating a graphite felt (2) to obtain a pretreated graphite felt; (S3) soaking the bipolar plate in a volatile solvent for 5-10 minutes, so that a layer of volatile solvent is attached to the surface of the bipolar plate, and then taking out; (S4) closely attaching the two pretreated graphite felts to both sides of the bipolar plate with the volatile solvent attached to the surface to form a graphite felt/bipolar plate/graphite felt sandwich structure; and (S5) stacking the graphite felt/bipolar plate/graphite felt sandwich structure in multiple layers, placing in a device containing copper sheets to fix, tightly attaching the graphite felt/bipolar plate/graphite felt sandwich structure by using tablet press with a constant pressure of the 0.02-0.1 MPa, applying direct current or alternating current for 5-20 minutes, and embedding the graphite felt carbon fiber with a thickness of 0.1-0.3 mm in the bipolar plate at 90-200degrees Celsius to form integrated electrode. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the integrated electrode prepared by the method. Copper sheet (1) Graphite felt (2) Bipolar plate (3) Power supply (4)