▎ 摘　　要

NOVELTY - The method for preparing soft-package type supercapacitor involves (a) preparing a graphene-modified conductive agent, (b) crushing a binder in an agate mortar into uniform slurry, mixing uniform slurry with graphene-modified conductive agent and an electrode material and adding the mixture to volatile organic solvent, (c) ball-milling the mixture in a ball mill to form a uniform and fine slurry, (d) uniformly spreading the uniform and fine slurry on the flat foamed nickel and laying on a vacuum plate of a film coating machine and completely volatilizing the organic solvent, (e) cutting a pole piece according to size, winding with a separator, pressing the cut pole piece and the separator, packaging, adding electrolyte to a glove box, sealing the soft package, and (f) carrying out secondary packaging in a vacuum pre-packaging machine under the protection of nitrogen to obtain the soft-package type supercapacitor. USE - Method is useful for preparing soft-package type supercapacitor. ADVANTAGE - The soft-package supercapacitor has improved electrical conductivity and excellent series resistance and energy and power density.