Electrochromic device based on transparent metal mesh electrode

Abstract

The invention provides an electrochromic device based on a transparent metal mesh electrode. The electrochromic device comprises four layers of structures, namely a first layer, a second layer, a third layer and a fourth layer in sequence, wherein the first layer is transparent conductive glass, the third layer is a zinc mesh or a galvanized metal mesh, the fourth layer is transparent non-conducting glass and is used for placing the third layer, the second layer is a cavity and is used for accommodating an electrolyte which is a complex ion electrolyte generated by a complex reaction of a zinc salt or zinc oxide and a strong base, and the first layer and the third layer are connected with a wire. According to the prepared electrochromic device, the influence of ion polarization is reduced, better deposition uniformity is obtained, the influence of by-products Zn (OH) 2 and ZnO on the reversibility of the device is reduced through the strong base electrolyte, the good transmittance adjusting capacity is achieved, electrochromism is better achieved, and the device is better applied.

Description

technical field [0001] The invention relates to the field of electrochromism, in particular to an electrochromic device based on a transparent metal mesh electrode. Background technique [0002] Electrochromism is a cutting-edge technology belonging to the family of chromogenic technologies. It uses materials to undergo reversible light absorption or light scattering under the action of an external electric field or current to produce reversible color or optical performance changes. The corresponding optoelectronic devices are called electrochromic. Chromogenic devices. Due to artificial dynamic and reversible light adjustment, electrochromic devices have broad development prospects and great commercial value in the field of smart windows. Installing electrochromic smart windows in buildings and cars, in addition to providing privacy features, can also enable energy savings by reducing heating, ventilation, and air conditioning requirements. For example, installing smart w...

AI Technical Summary

Problems solved by technology

However, there is a problem that at this time, on the counter electrode, in addition to Li+ being inserted into NiO, Cu 2+ 、 Bi 3+ Electrodeposition is a strong side reaction, which also causes uneven discoloration of the device

The Narile team then spin-coated BTD on the surface of NiO to suppress Cu 2+ 、 Bi 3+ Deposition, however, using BTD inhibitors, although the time durability of this method and the production yield are low (Nature Energy, 2019, 4, 223-229)

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