METHOD FOR MANUFACTURING UNIFORM CONDUCTIVE BIPOLAR PLATE USING IN VANADIUM REDOX FLOW BATTERY

摘要

Bipolar plate manufacturing method having a uniform conductivity according to the present invention, A first step of preparing a carbon fiber fabric made by weaving carbon fibers in the X and Y axis directions, and a carbon fiber web made of carbon fibers randomly entangled; Stacking the carbon fiber fabric and the carbon fiber web; Needle punching the laminated carbon fiber fabric and the carbon fiber web, and pulling the carbon fibers of the carbon fiber web in the Z-axis direction to form a mixed carbon fiber material in which the carbon fibers are arranged in the X, Y, and Z-axis directions. Step 3; A fourth step of impregnating a conductive resin in the mixed carbon fiber material; A fifth step of pressurizing the mixed carbon fiber material so that the conductive resin spreads in all directions along the carbon fibers arranged in the X, Y, and Z axes; And And pressurizing and heating the mixed carbon fiber material to cure the conductive resin spread in all directions.