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Planar flexible energy storage and color change integrated device and preparation method thereof

An energy storage and device technology, which is applied in the field of flat flexible integrated devices, flat flexible energy storage and color-changing integrated devices and their preparation fields, can solve the problems of restricting the development of electrochromic energy devices, complicated processes, low efficiency, etc., and achieves the realization of The effect of energy storage and electrochromism, simple operation steps and convenient integration

Pending Publication Date: 2021-11-16
ZHEJIANG SCI TECH UNIV SHAOXING KEQIAO RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the key to the preparation of electrochromic energy devices lies in the preparation of electrochromic electrodes, especially when it comes to the design of patterned electrodes. Traditional physical deposition and spray masking processes are complex and inefficient, which severely limit the development of electrochromic energy devices. develop

Method used

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  • Planar flexible energy storage and color change integrated device and preparation method thereof
  • Planar flexible energy storage and color change integrated device and preparation method thereof
  • Planar flexible energy storage and color change integrated device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a planar flexible zinc ion capacitor energy storage electrochromic integrated device, the specific steps of the method are as follows:

[0042] (1) Preparation of electrochromic layer and conductive electrode ink

[0043] Polyvinylpyrrolidone (PVP) was used to disperse nano-tungsten trioxide (WO) in NMP 3 ) material, adjust the viscosity of the ink to about 42mPa·s, and stir at a speed of 1000r / min for 10min to obtain WO for microelectronic printing with good dispersion stability. 3 Electrochromic ink;

[0044] After Ag NWs and nano-zinc powder were dispersed with ethanol, polypyrrole was used to adjust the viscosity to about 50mPa·s, and the Ag NWs / Zn conductive electrode ink for printing was obtained after stirring at a speed of 1000r / min for 5min;

[0045] Electrochromic ink weight percentage formula: nano tungsten trioxide (WO 3 ) 10%, polyvinylpyrrolidone (PVP) 5%, the balance is NMP, and the total weight of ink is 100%.

[0046] The weig...

Embodiment 2

[0059] A method for preparing a planar flexible graphene capacitive energy storage electrochromic integrated device, the specific steps of the method are as follows:

[0060] (1) Preparation of electrochromic layer and conductive electrode ink

[0061] Polyethylene oxide (PEO) was used to disperse molybdenum trioxide (MoO 3 ), adjust the viscosity of the ink to about 38mPa s, and stir at a speed of 800r / min for 15min to obtain MoO for microelectronic printing with good dispersion stability 3 Electrochromic ink;

[0062] After dispersing polyaniline and reduced graphene oxide (rGO) with ethanol, stirring at a speed of 1000r / min for 15 minutes, a polyaniline / rGO conductive electrode ink with a viscosity of about 40mPa s was obtained, which can be used for microelectronic printing;

[0063] Electrochromic ink formula: nano molybdenum trioxide (MoO 3 ) 12%, polyethylene oxide (PEO) 4%, the balance is ethanol, and the total weight of ink is 100%.

[0064] The conductive electro...

Embodiment 3

[0071] A method for preparing a planar flexible Mxene capacitive energy storage electrochromic integrated device, the specific steps of the method are as follows:

[0072] (1) Preparation of electrochromic layer and conductive electrode ink

[0073] Polyacrylamide (CPAM) was used to disperse nano titanium dioxide (TiO 2 ), adjust the viscosity of the ink to about 32mPa s, and stir at a speed of 1000r / min for 12min to obtain TiO for microelectronic printing with good dispersion stability 2 Electrochromic ink;

[0074] After dispersing polyaniline and Mxene with water and isopropanol mixed solution (5:1), stir at 1000r / min for 12 minutes to obtain a polyaniline / Mxene conductive electrode ink with a viscosity of about 45mPa s, which can be used for microelectronic printing ;

[0075] Electrochromic ink formula: nano titanium dioxide (TiO 2 ) 10%, polyaniline (PEO) 5%, the balance is a mixed solution of water and isopropanol (5:1), and the total weight of the ink is 100%.

[...

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Abstract

The invention relates to a planar flexible integrated device, in particular to a planar flexible energy storage and color change integrated device and a preparation method thereof. The method comprises the steps of: obtaining High-performance ink with proper viscosity and stable and excellent dispersity by dispersing an electrochromic material by using a high-molecular polymer, and printing the high-performance ink on flexible substrates such as PET (Polyethylene Terephthalate) and the like by using a microelectronic printer to obtain a patterned electrochromic layer; preparing conductive electrode ink by using a similar method, and precisely printing a conductive electrode layer on the upper part of the electrochromic layer for the second time; and finally, printing a gel electrolyte on the upper part of the electrochromic layer pattern, and assembling the two parts of the electrochromic layer to obtain a complete planar flexible energy storage and color change integrated device. The mechanical flexibility, the optical performance and the electrochemical performance of the planar flexible capacitive energy storage electrochromic integrated device are comprehensively improved through application of a microelectronic printing technology, preparation of high-performance ink, screening of a flexible base material, an electrochromic material and a conductive electrode material and the like.

Description

technical field [0001] The invention relates to a planar flexible integrated device, in particular to a planar flexible energy storage and color-changing integrated device and a preparation method thereof, belonging to the technical field of energy storage devices. Background technique [0002] With the rapid economic development and continuous growth of energy consumption, the energy crisis has become one of the biggest problems in today's society, and managing energy consumption in an intelligent way has become a way to solve energy problems. As a typical multi-functional device integrating discoloration and energy storage functions, the energy storage color-changing device has the characteristics of low working voltage, multi-stable state, no static power consumption, continuously adjustable light transmittance, long life, and low cost. , can judge the energy consumption of the power supply by vision, and provide a method for intelligent management of energy consumption. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1516G02F1/155G02F1/1523G02F1/15
CPCG02F1/15165G02F1/155G02F1/1525G02F1/15
Inventor 胡柳张亚茹胡毅
Owner ZHEJIANG SCI TECH UNIV SHAOXING KEQIAO RES INST CO LTD
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