▎ 摘　　要

NOVELTY - Preparation of electrochromic conductive polymer composite film and device involves adding a nanomaterial raw material and a conductive polymer monomer to acid solution, ultrasonically treating for 5-60 minutes to obtain a dispersion, adding initiator to acid solution to prepare an oxidant, adding the oxidant to the dispersion, stirring continuously in a low-temperature water bath, and centrifugally washing to obtain a nanomaterial/conductive polymer nanocomposite suspension, adding conductive agent, dispersant, and/or film former to the nanocomposite suspension, stirring to obtain a uniformly-dispersed film-forming liquid, casting the film-forming liquid directly on a conductive substrate to obtain an electrochromic composite film, and tightly adhering a lower transparent conductive layer, a cathode electrochromic layer, an electrolyte layer, an anode electrochromic layer, and an upper transparent conductive layer from bottom to top to produce an electrochromic device. USE - Preparation of electrochromic conductive polymer composite film and device. ADVANTAGE - The method economically produces electrochromic conductive polymer composite film and device having fast response speed, high color contrast and excellent cycle stability, using simple equipment. DETAILED DESCRIPTION - Preparation of electrochromic conductive polymer composite film and device involves adding 0.01-0.2 g nanomaterial raw material and a conductive polymer monomer to 40-70 ml of 0.1-2 mol/L acid solution, ultrasonically treating for 5-60 minutes to obtain a dispersion, adding 0.01-0.2 g initiator to 24 ml of 1 mol/L acid solution to prepare an oxidant, adding the oxidant to the dispersion, stirring continuously for 2-24 hours in a low-temperature water bath at -5 degrees C to 15 degrees C, and centrifugally washing to obtain a nanomaterial/conductive polymer nanocomposite suspension, adding 0-10 wt.% conductive agent, 0-5 wt.% dispersant, and/or 0-5 wt.% film former to the nanocomposite suspension, stirring for 30 minutes to obtain a uniformly-dispersed film-forming liquid, casting the film-forming liquid directly on a conductive substrate to form a film, or taking 1-5 ml film-forming liquid and adding to a spray gun, spraying on the conductive substrate to form a film in a hot stage at 60-150 degrees C to obtain an electrochromic composite film, and tightly adhering a lower transparent conductive layer, a cathode electrochromic layer, an electrolyte layer, an anode electrochromic layer, and an upper transparent conductive layer from bottom to top to produce an electrochromic device.