Liquid electrolyte, preparation method of liquid electrolyte, electrochromic device and preparation method of electrochromic device

Abstract

The invention provides a liquid electrolyte, a preparation method of the liquid electrolyte, an electrochromic device and a preparation method of the electrochromic device. The electrochromic device sequentially comprises a first substrate, a first electrode layer, a packaging gasket, a second electrode layer and a second substrate from top to bottom, the packaging gasket is of a hollow annular structure; the first electrode layer, the packaging gasket and the second electrode layer form a closed electrolyte cavity; liquid electrolyte is injected into the electrolyte cavity; after voltage is applied to the first electrode layer and the second electrode layer, the electrochromic device is changed from a transparent light-transmitting state to a dark-color light-blocking state, and then is changed from the dark-color light-blocking state to a mirror reflection state. According to the present invention, the solvent is modified by changing the material of the solvent or introducing the additive so as to provide the normal work at the low temperature;

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a liquid electrolyte and a preparation method thereof, an electrochromic device and a preparation method thereof. Background technique [0002] With the ever-increasing demand for energy, there is a growing research interest in reducing energy consumption. Therefore, materials or devices capable of converting or saving energy have received extensive attention. Electrochromic / reflective technology can effectively control the transmission of visible light and infrared heat, and has the characteristics of single reversible and multiple cycles. Various applications of electrochromic / reflective devices have been developed over the past few decades, such as sunlight-attenuating smart windows, anti-glare rearview mirrors, wearable energy devices, and reflective or transmissive electronic displays. At present, electrochromic / reflective devices generally use metal reversible ele...

AI Technical Summary

Problems solved by technology

[0003] The electroreflective / chromic device based on the reversible electrodeposition of silver is affected by the solvent DMSO. The minimum operating temperature of this metal-deposited electrochromic device can only reach about 18°C ​​above zero, which severely limits the working conditions of the device. condition

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