▎ 摘　　要

NOVELTY - An electrochromic gel comprises 20-99 wt.% polar solvent, 0.5-25 wt.% rheology modifying agent, and 0.5-20 wt.% electrochromic material. The rheology modifying agent dissolved in the polar solvent forms a thermoreversible gel. The thermoreversible gel is a gel at 25° C, and is a fluid at 120° C. USE - Gel is used for forming coating layer for manufacturing electrochromic cell and electrochromic device used for viewing device comprising window, video display device, virtual reality device, smart eyewear, electrochromic eyewear, mirror, battery, augmented reality device, extended reality device, mixed reality device, fixed display, mobile communication device, privacy screen, camera, hiding display, head of display and/or automotive side panel (all claimed). ADVANTAGE - The gel has desired rheological property and thermoreversible gel property. The coating layer formed using the gel provides electrochromic device having improved optical property and electronic property. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (i) manufacture of the electrochromic gel, which involves combining the electrochromic material and a portion of the polar solvent by mixing under ambient conditions to form an electrochromic material solution, combining the rheology modifying agent and a portion of the polar solvent by mixing at a temperature of 30-120° C to form a rheology modifying agent solution, and combining the electrochromic material solution and the rheology modifying agent solution and allowing the combined solution to cool to ambient conditions; (ii) manufacture of an electrochromic cell, which involves applying a conductor (150) over at least a portion of an optical substrate (120), applying a conductor (140) over at least a portion of the optical substrate (120) such that the conductor (140) is not in direct contact with the conductor (150), and applying a coating layer comprising the electrochromic gel over at least a portion of the optical substrate (120) and optionally over at least a portion of optical substrate (110). The coating layer is in contact with the conductor (150) and the conductor (140); and (iii) an electrochromic device, which comprises the cell. The electrochromic cell transitions to a fully clear state, upon reduction and/or removal and/or reversal of a voltage, in from 0.1 second to 60 minutes, such as 0.1-30 minutes, 0.5-60 seconds, 0.1-10 seconds, and 0.1-1 seconds, measured using a spectrophotometer or Hunterlab UltraScan PRO(RTM: color measurement spectrophotometer) at visible spectrum wavelength of 380-780 nm at 25° C DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electrochromic device. 100Electrochromic device 110,120Optical substrates 130Coating layer 140,150Conductors 160Power source