A stretchable energy storage electrochromic device

An electrochromic device, electrochromic layer technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as low capacitance, and achieve the effect of long service life

Active Publication Date: 2018-02-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon-based electric double layer capacitors, the capacitance is generated from the accumulation of surface charge due to the rapid adsorption / desorption of ions in the electrolyte at the electrode / solution interface, fast response, long cycle life, but relatively low specific capacitance

Method used

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  • A stretchable energy storage electrochromic device
  • A stretchable energy storage electrochromic device
  • A stretchable energy storage electrochromic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The stretchable substrate, the carbon conductive layer and the metal oxide electrochromic layer are used to prepare the stretchable energy storage electrochromic device according to the following steps:

[0031] (1) Polydimethylsiloxane and curing agent are mixed in a mass ratio of 5:1 and poured into a petri dish (thickness 0.1mm), degassed, and cured at 10°C for 0.5 hours, taken out, cut into specific sizes, Shape, stretched so that it elongates by 10%, acts as a base.

[0032] (2) Take 5 mg of carbon nanotubes, dissolve them in 100 mL of absolute ethanol, and disperse them in an ultrasonic cleaner at room temperature for 1 hour to obtain a high-concentration and uniformly dispersed carbon nanotube solution, which is configured to a concentration of 0.05 mg / mL carbon nanotube solution. The solution was spin-coated on the substrate with a spin coater, and after the dispersant was naturally volatilized and dried, a second spin-coating was performed, and this was repeat...

Embodiment 2

[0037] The stretchable substrate, the carbon conductive layer and the metal oxide electrochromic layer are used to prepare the stretchable energy storage electrochromic device according to the following steps:

[0038] (1) Mix polydimethylsiloxane and curing agent in a mass ratio of 10:1, pour it into a petri dish (thickness 1mm), degas, and cure at 40°C for 1.5 hours, take it out, and cut it into a specific size and shape , stretched to elongate 30%, as the base.

[0039] (2) Take 10 mg of carbon nanotubes, dissolve them in 100 mL of absolute ethanol, and disperse them in an ultrasonic cleaner at room temperature for 2 hours to obtain a high-concentration and uniformly dispersed carbon nanotube solution, which is configured to a concentration of 0.1 mg / mL carbon nanotube solution. The solution was spin-coated on the substrate with a spin coater, and after the dispersant was naturally volatilized and dried, the second spin-coating was performed, and this was repeated 4 times ...

Embodiment 3

[0044] The stretchable substrate, the carbon conductive layer and the metal oxide electrochromic layer are used to prepare the stretchable energy storage electrochromic device according to the following steps:

[0045] (1) Mix polydimethylsiloxane and curing agent at a mass ratio of 15:1 and pour it into a petri dish (thickness 10mm), degas, and cure at 70°C for 3 hours, take it out, and cut it into a specific size and shape , stretched to elongate 50%, as the base.

[0046] (2) Take 20 mg of carbon nanotubes, dissolve them in 100 mL of absolute ethanol, and disperse them in an ultrasonic cleaner at room temperature for 3 hours to obtain a high-concentration and uniformly dispersed carbon nanotube solution, which is configured to a concentration of 0.2 mg / mL carbon nanotube solution. The solution was spin-coated on the substrate with a spin coater, and after the dispersant was naturally volatilized and dried, a second spin-coating was performed, and this was repeated 5 times ...

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Abstract

The invention relates to an extensible energy-storage electrochromic device. The electrochromic device is based on an extensible substrate, the extensible substrate is coated with a carbon conducting layer and a metal oxide electrochromic layer sequentially, and the extensible energy-storage electrochromic device can give consideration to electrochromic performance and energy-storage capacity by selecting manufacturing methods and controlling manufacturing conditions. The extensible energy-storage electrochromic device has excellent capacitive performance and can store energy when a metal oxide is electrified to produce electrochromic effect, namely achieves charging effect. The extensible energy-storage electrochromic device has the advantages of being safe, effective and capable of saving energy and being environment-friendly and can be widely applied to multiple fields.

Description

technical field [0001] The invention belongs to the technical field of electrochromic devices, and in particular relates to a scalable energy storage electrochromic device and a preparation method thereof. Background technique [0002] Currently, global energy needs are dependent on fossil fuels. Such dependence could lead to future energy crises as resources continue to be depleted. Therefore, energy storage systems begin to play an increasingly important role in our lives. [0003] Li-ion batteries and electrochemical capacitors are energy storage systems capable of meeting most energy needs. Compared with lithium-ion batteries, electrochemical capacitors have many significant advantages, such as high power density, excellent rate performance, and low maintenance costs, making them widely used in portable electronic devices and transportation fields. Electrochemical capacitors are divided into electric double layer capacitors and pseudocapacitors. In carbon-based elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/153
CPCG02F1/153
Inventor 赵九蓬曲慧颖李垚
Owner HARBIN INST OF TECH
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