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Electrolyte with intelligently adjustable optical properties, and electrochemical device

A technology of intelligent adjustment and optical properties, applied in the field of electrochemical devices, can solve problems such as the inability to meet the needs of the appearance and color of the device, and achieve the effects of excellent performance, increased functionality, and broadened application fields.

Inactive Publication Date: 2020-07-10
东莞市三航军民融合创新研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an electrolyte and an electrochemical device with intelligently adjustable optical properties in view of the above-mentioned defects of the prior art, aiming to solve the problem that current research on electrolytes mainly focuses on improving its ionic conductivity and chemical properties. Stability, but there is little research on its diversification in the field of optical properties, which cannot meet people's needs for the appearance and color of devices

Method used

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  • Electrolyte with intelligently adjustable optical properties, and electrochemical device
  • Electrolyte with intelligently adjustable optical properties, and electrochemical device
  • Electrolyte with intelligently adjustable optical properties, and electrochemical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Mix 0.1g of biphenyl-based nematic mixed liquid crystal material E8 (purchased from Jiangsu Hecheng Display Technology Co., Ltd.) with 0.1g of 1-butyl-3-methylimidazole chloride, heat it to above 80°C and keep it for 30min, Stir until clear and transparent to obtain an electrolyte with intelligently adjustable optical properties. The electrolyte can realize the transition from an opaque state to a transparent state under an external electric field. Apply the electrolyte to figure 1 WO in 3 The electrochromic device can show four different color states under different voltage driving, and the optical control ability is greatly improved. When applied to the exterior wall glass of the building, the energy-saving effect is significantly better than the ordinary one used in Comparative Example 1. Electrolyte WO 3 Electrochromic devices such as image 3 Shown.

Embodiment 2

[0038] At room temperature, dissolve 2.12g of lithium chloride in 100ml of deionized water to prepare an aqueous electrolyte solution with a concentration of 0.5mol / L, and then add 10g of polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymerization Pluronic P103 (purchased from BASF), after stirring to dissolve, an electrolyte with intelligent optical properties can be obtained. The electrolyte is transparent at low temperatures and turbid at high temperatures. Take 1ml of this electrolyte and apply it figure 1 WO in 3 The electrochromic device can make it have a thermoelectric dual response effect, showing four different color states under the thermoelectric dual stimulation, and the optical control ability is greatly improved. When applied to the exterior glass of a building, the energy saving effect is significantly better than WO using ordinary electrolyte in Comparative Example 1 3 Electrochromic devices such as Figure 4 Shown.

Embodiment 3

[0040] 0.1g of the light-changing blue azo photochromic compound 2-(4'-N,N-dimethylaminophenylazo)anthraquinone (purchased from Shenzhen Color Chemical Technology Co., Ltd.) and 0.1g 1-but Mix the 3-methylimidazolium bis(trifluoromethylsulfonyl)amide ionic liquid, heat to above 80°C, keep for 30min, and stir until it is clear and transparent to obtain an electrolyte with intelligently adjustable optical properties. The electrolyte can transform from colorless to deep blue under sunlight. Applying the electrolyte to PEDOT (Electrochromic Material) electrochromic devices can make it exhibit a variety of different color states under the dual drive of sunlight and voltage, and is suitable for flexible wearable decoration or camouflage fields.

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Abstract

The invention discloses an electrolyte with intelligently adjustable optical properties, and an electrochemical device. The electrolyte is an electrolyte solution containing a stimuli-responsive color-changing material; wherein the stimuli-responsive color-changing material is a phase-change liquid crystal material, a thermochromic material, a photochromic material or an electrochromic material; the electrolyte solution is an electrolyte salt solution or an ionic liquid solution. The color change or phase change functional material is added into the traditional electrolyte, so that the color change phenomenon is generated under the stimulation of different external conditions. The electrolyte provided by the invention is applied to an electrochemical device; while excellent performance ofthe device is ensured, the device can change its own optical properties in response to external stimulation, functionality, individuation and interestingness of the electrochemical device can be improved, diversified requirements of consumers can be met, functions of indication, energy storage and the like can be played, working efficiency of the electrochemical device is improved, and the application field of the device is broadened.

Description

Technical field [0001] The invention relates to the technical field of electrochemical devices, in particular to an electrolyte and an electrochemical device with intelligently adjustable optical properties. Background technique [0002] Electrolyte is an important component that provides internal ion channels for electrochemical devices such as batteries, capacitors, sensors, and electrochromic devices, prevents the working electrode and the counter electrode from contacting, and improves the electrochemical stability of the device. The electrolyte needs to have high ionic conductivity and low electronic conductivity. The high ionic conductivity ensures that ions can enter / exit the functional layer efficiently during the operation of the device, thereby achieving uniform and rapid charging and discharging or discoloration effects; low electronic conductivity helps the functional material to stably maintain its own Oxidation / reduction state, thus ensuring that the device has a g...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/00G02F1/1524
CPCG02F1/009G02F1/13G02F1/1524
Inventor 邢星
Owner 东莞市三航军民融合创新研究院
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