FLEXIBLE ELECTROCHROMIC-BASED VARIABLE-EMISSIVITY DEVICE AND PREPARATION METHOD THEREFOR

摘要

Disclosed are a flexible electrochromic-based variable-emissivity device and a preparation method therefor. The flexible electrochromic-based variable emissivity device sequentially comprises a working electrode, a gel electrolyte layer, and a counter electrode from top to bottom, wherein the working electrode comprises a flexible polymer film and a metal film, with the flexible polymer film being a surface-modified film and/or a film of which a lower side is plated with a transition layer, and the metal film being deposited on the surface-modified film or on the transition layer; and the electrolyte layer comprises a porous diaphragm and an electrolyte, with the electrolyte wetting the porous diaphragm. The electrolyte comprises an electrochromic material containing metal ions, and a solvent, wherein the metal ions are metal ions capable of realizing reversible electrodeposition and dissolution, and the metal for the metal ions is different from the metal for the metal film. The preparation method comprises: respectively preparing a working electrode, a gel electrolyte layer and a counter electrode, and performing assembly. The device provided in the present invention is flexible and is uniform in terms of variations. The preparation method provided in the present invention is simple in process and short in preparation period, and can be used for industrial production.