Arbitrarily tailorable electrochromic device and use thereof

An arbitrarily tailorable electrochromic device, comprising:

• in order of a first transparent flexible substrate, a first transparent electron-conductive layer, an electrochromic layer, an electrolyte solution with automatically curable in presence of air and/or moisture to achieve a self-encapsulation function, an ion storage layer, a second transparent electron-conductive layer and a second transparent flexible substrate,
• wherein the electrolyte solution comprises a component which is curable in presence of air and/or moisture, a solvent and an electrolyte;
• a content of the component which is curable in presence of air and/or moisture in the electrolyte solution is 20%-70% by mass, and a total content of the electrolyte and the solvent in the electrolyte solution is 30%-80% by mass;
• and a concentration of the electrolyte in a mixture of both the electrolyte and the solvent is 0.1 mol/L-10.0 mol/L.