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Gel polymer electrolyte, electrochromic gel prepared from gel polymer electrolyte and electrochromic device

A technology of gel polymer and electrolyte, applied in instruments, optics, nonlinear optics, etc., can solve the problems of opacity, low conductivity, no photocuring properties, etc., and achieve the effect of good conductivity and simple preparation process

Pending Publication Date: 2021-05-18
GUANGZHOU SHINE POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some of the polymer bases used in the gel polymer electrolytes currently used in electrochromic devices have high crystallinity, and some of them harden under photocuring conditions, which will make the conductivity low and affect the final electrochromic properties of the device. Discoloration performance; at the same time, some polymer bases do not have photocuring performance or become opaque during photocuring, which affects the electrochromic performance of the device

Method used

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  • Gel polymer electrolyte, electrochromic gel prepared from gel polymer electrolyte and electrochromic device
  • Gel polymer electrolyte, electrochromic gel prepared from gel polymer electrolyte and electrochromic device
  • Gel polymer electrolyte, electrochromic gel prepared from gel polymer electrolyte and electrochromic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] S1. Preparation of high molecular polymer:

[0061] Add 50 parts of propylene carbonate as a solvent in a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a condenser tube, turn on the stirrer, and mix 20 parts of methyl methacrylate, 30 parts of hydroxyethyl methacrylate Mix the ester with 0.25 part of 2,2'-azobisisobutyronitrile and 0.1 part of dodecyl mercaptan evenly, add it into a four-necked flask under a nitrogen atmosphere, and react at 60°C for 10 hours to complete the polymerization. Cool to room temperature to obtain a polymer solution.

[0062] S2. Preparation of polymer electrolyte:

[0063] 50 parts of the above-mentioned polymer solution, LiClO 4 2 parts, 20 parts of propylene carbonate, 3 parts of 1-hydroxy-cyclohexyl-phenyl ketone, and 25 parts of hydroxyethyl acrylate were prepared into a polymer electrolyte solution.

[0064] S3. Preparation of electrochromic gel:

[0065] Dissolve 6 part...

Embodiment 2

[0071] S1. Preparation of high molecular polymer:

[0072] Add 50 parts of propylene carbonate as a solvent in a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a condenser, turn on the stirrer, and mix 20 parts of methyl methacrylate, 30 parts of polyethylene glycol methyl Mix 0.25 parts of 2,2'-azobisisobutyronitrile and 0.1 part of dodecyl mercaptan evenly, add them into a four-necked flask under a nitrogen atmosphere, and react at 60°C for 10 hours to complete Polymerize and cool to room temperature to obtain a polymer solution.

[0073] The way and consumption of S2, S3, S4 are all identical with embodiment 1.

Embodiment 3

[0075] S1. Same as Example 1.

[0076] S2. 50 parts of the above polymer solution, LiClO 4 2 parts, 20 parts of propylene carbonate, 3 parts of 1-hydroxy-cyclohexyl-phenyl ketone, and 25 parts of polyethylene glycol diacrylate were prepared into a polymer electrolyte solution.

[0077] The way and consumption of S3, S4 are all identical with embodiment 1.

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Abstract

The invention provides a gel polymer electrolyte, an electrochromic gel prepared from the gel polymer electrolyte, and an electrochromic device. The ionic conductivity of the gel polymer electrolyte is 10<-3>S / cm-10<-4>S / cm, and the gel polymer electrolyte is suitable for being used as an ionic conductor layer in an electrochromic device. The gel polymer electrolyte is bound in a polymer-based cross-linked network in a photocuring mode, the gel polymer electrolyte is transparent and does not turn white after photocuring, the contrast ratio of the electrochromic device is not affected, in addition, the system also keeps an ion channel and mobility similar to those of a liquid electrolyte, and good conductivity can be ensured. The electrochromic gel prepared from the gel polymer electrolyte disclosed by the invention is added into an electrochromic device by adopting a coating process, and the preparation process is simple, free of liquid leakage and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of electrochromism, and in particular relates to a gel polymer electrolyte and an electrochromic gel prepared by the same, and an electrochromic device. Background technique [0002] Electrochromism refers to the phenomenon that a material undergoes a reversible change between a colored state and a bleached state by injecting or extracting charges (ions or electrons) under the action of an external electric field, and is manifested as a reversible change in color and transparency in appearance. Materials with electrochromic properties are called electrochromic materials, and devices assembled with electrochromic materials are called electrochromic devices. Electrochromic devices can be used in architectural glass, automotive color-changing smart windows, aircraft portholes, automotive anti-glare rearview mirrors, color-changing glasses, and displays. [0003] Electrochromic devices generally adopt a typical sandwich ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F220/20C08F222/14G02F1/1514G02F1/15G02F1/155
CPCG02F1/1514G02F1/1508G02F1/155C08F265/06C08F220/20C08F222/1063
Inventor 刘伟时林观生石建伟陈楚亮韩泽明胡龙
Owner GUANGZHOU SHINE POLYMER TECH
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