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Method for simply and efficiently preparing multicolor all-solid-state electrochromic device

An electrochromic device and electrochromic technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as easy leakage, electrolyte deterioration, and difficult sealing, and achieve increased wetting fusion, improved stability, and strong bonding. force effect

Inactive Publication Date: 2021-02-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the choice of electrolyte is also an important factor. Liquid electrolytes have good wettability and are widely used, but their sealing is difficult and easy to leak. In addition, electrochromic devices are mostly used in open environments, where sunlight Exposure to sunlight can also lead to electrolyte deterioration

Method used

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  • Method for simply and efficiently preparing multicolor all-solid-state electrochromic device
  • Method for simply and efficiently preparing multicolor all-solid-state electrochromic device
  • Method for simply and efficiently preparing multicolor all-solid-state electrochromic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A simple and efficient method for preparing multicolor all-solid-state electrochromic devices:

[0043] (1) The FTO conductive glass (produced by Shenzhen Huanan Xiangcheng Technology Co., Ltd.) was ultrasonically cleaned in deionized water for 20 minutes. After cleaning, it was placed in a 60 ℃ oven to dry for use. Before the hydrothermal reaction, it was treated in a plasma cleaning machine. 5 minutes;

[0044] (2) Dissolve 0.287 g of lithium bistrifluoromethanesulfonimide in 1 mL of polyethylene glycol diacrylate, fully stir until dissolved, and then add 10 μL of 2-hydroxy-2-methylpropiophenone and stir evenly to form Liquid polymer electrolyte, ready for use;

[0045] (3) First, a multi-color electrochromic film with a tin dioxide / vanadium pentoxide core-shell structure was prepared on a conductive substrate by combining the hydrothermal method and the electrodeposition method as the electrochromic layer, and then the FTO as the ion storage layer was used as the el...

Embodiment 2

[0050] A simple and efficient method for preparing multicolor all-solid-state electrochromic devices:

[0051] (1) The FTO conductive glass (produced by Shenzhen Huanan Xiangcheng Technology Co., Ltd.) was ultrasonically cleaned in deionized water for 20 minutes. After cleaning, it was placed in a 60 ℃ oven to dry for use. Before the hydrothermal reaction, it was treated in a plasma cleaning machine for 5 minutes. minute;

[0052] (2) Dissolve 0.287g of lithium bistrifluoromethanesulfonimide in 1mL of polyethylene glycol diacrylate, stir fully until dissolved, then add 10μL of 2-hydroxy-2-methylpropiophenone and stir evenly to form a liquid The polymer electrolyte, ready to use;

[0053] (3) First, a multi-color electrochromic film with a tin dioxide / vanadium pentoxide core-shell structure was prepared on a conductive substrate by combining the hydrothermal method and the electrodeposition method as the electrochromic layer, and then the FTO as the ion storage layer was used ...

Embodiment 3

[0058] A simple and efficient method for preparing multicolor all-solid-state electrochromic devices:

[0059] (1) The FTO conductive glass (produced by Shenzhen Huanan Xiangcheng Technology Co., Ltd.) was ultrasonically cleaned in deionized water for 20 minutes. After cleaning, it was placed in a 60 ℃ oven to dry for use. Before the hydrothermal reaction, it was treated in a plasma cleaning machine for 5 minutes. minute;

[0060] (2) Dissolve 0.287g of lithium bistrifluoromethanesulfonimide in 1mL of polyethylene glycol diacrylate, stir fully until dissolved, then add 10μL of 2-hydroxy-2-methylpropiophenone and stir evenly to form a liquid The polymer electrolyte, ready to use;

[0061] (3) First, a multi-color electrochromic film with a tin dioxide / vanadium pentoxide core-shell structure was prepared on a conductive substrate by combining the hydrothermal method and the electrodeposition method as the electrochromic layer, and then the FTO as the ion storage layer was used ...

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Abstract

The invention discloses a method for simply and efficiently preparing a multicolor all-solid-state electrochromic device. The method comprises the step of quickly assembling the all-solid-state electrochromic device by taking a stannic oxide / vanadium pentoxide electrochromic composite film as an electrochromic layer and a polymer solid-state electrolyte as an ionic conductive layer through an ultraviolet curing effect, Wherein the polymer solid electrolyte takes polyethylene glycol diacrylate as a solvent and lithium bis (trifluoromethanesulfonyl) imide as a solute, and the two electrodes arefirmly combined together through polycondensation reaction of polyethylene glycol diacrylate under the action of a photoinitiator. The polymer electrolyte exists in a liquid form before being cured, so that the polymer electrolyte has high wettability when being in contact with the electrochromic layer and the ion storage layer, and the purpose of full contact with an electrode material is achieved. According to the preparation method, the device assembly process is optimized, and a new direction and important reference are provided for design and preparation of the all-solid-state electrochromic device. Meanwhile, the device shows the same color change as the thin film single electrode, and is expected to be truly applied to the field of military camouflage protection.

Description

technical field [0001] The invention relates to the technical field, in particular to a method for simply and efficiently preparing a multicolor all-solid-state electrochromic device. Background technique [0002] In the nearly 60 years of electrochromic technology research history, many countries have carried out a lot of research on materials and applications and accumulated rich experience. However, it has not yet been widely used, and it is still in the stage of laboratory research, and there is still a long distance from the real commercial application and industrialization. From the structure of the device, each component will have an impact on the performance of the device, and the optimization of each part is crucial. The design and assembly of electrochromic devices is the key research content at the beginning of research in this field, and the application of materials also relies on the high-quality preparation of device products. Electrochromic devices are mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1523
CPCG02F1/1523G02F1/1525
Inventor 涂江平赵根锋王伟齐王秀丽夏新辉谷长栋
Owner ZHEJIANG UNIV
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