High-performance electrolyte for Prussian-blue-based electrochromic device

Abstract

The invention discloses a high-performance electrolyte for a Prussian-blue-based electrochromic device. The high-performance electrolyte comprises an organophosphate solvent and alkali metal salt. The electrolyte disclosed by the invention not only can effectively overcome the problems of narrow stable voltage interval, more side reactions, low reaction speed, short color change cycle life and the like of the traditional electrolyte, but also has the outstanding advantages of large applicable temperature zone, high water and oxygen tolerance, simple preparation process, mild conditions, suitability for industrial batch production and the like. The color and the light transmittance of an electrochromic device prepared from the electrolyte can be flexibly adjusted through external voltage, and the electrolyte has wide application prospects in the fields of building energy conservation, airplane dimming dazzle windows, optical stealth, anti-dazzle goggles, automobile sunroofs, photo-thermal management, energy-saving display, flexible devices and the like.

Description

technical field [0001] The invention belongs to the technical application field of functional materials, and in particular relates to a high-performance electrolyte for Prussian blue-based electrochromic devices. Background technique [0002] In order to reduce the weight of the external wall and improve the lighting and aesthetics, the proportion of glass curtain wall in the external structure of modern buildings is increasing. However, the widespread use of glass curtain walls has also caused a huge waste of energy. The survey shows that the heat loss caused by the glass curtain wall is more than 10 times that of the typical masonry infill wall, accounting for about 40% of the total heat loss of the building. Therefore, how to use energy-saving glass technology to effectively reduce the heat loss and energy consumption of buildings has become the focus of increasing attention. [0003] Electrochromic glass can flexibly adjust its own optical properties under the action o...

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is: in view of the challenges of narrow stable voltage range, side reactions such as hydrogen evolution / oxygen evolution, slow reaction kinetics, dissolution of Prussian blue, and poor cycle stability in traditional electrolytes represented by water solvents, the development of a A high-performance electrolyte for Prussian blue-based electrochromic devices

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