Reductive metal/polyaniline electrochromic battery and preparation method thereof

An electrochromic, polyaniline technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of electrolyte evaporation, slow coloring process, short life, etc., and achieve the effects of simple preparation method, convenient operation and simple structure

Inactive Publication Date: 2017-06-23
南京协合新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there are still some deficiencies: first, metal aluminum has relatively high activity, and is easily corroded due to oxygen polarization in aqueous solution, resulting in short life; second, the coloring process of the device depends on oxygen, and the amount of oxygen in the electrolyte is Limited, oxygen needs to be continuously injected, so the device structure is open, and there are problems of electrolyte evaporation and leakage in practical applications
Furthermore, the coloring process of the device is relatively slow, and it still takes more than 12 hours to achieve a certain degree of coloring even when a certain amount of oxygen is blown in.

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  • Reductive metal/polyaniline electrochromic battery and preparation method thereof
  • Reductive metal/polyaniline electrochromic battery and preparation method thereof
  • Reductive metal/polyaniline electrochromic battery and preparation method thereof

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preparation example Construction

[0038] (1) The preparation method of the present invention is simple, the cost is low, and the obtained electrochromic battery has simple structure, convenient operation, and both energy saving and energy storage;

[0039] (2) As an electrochromic device, it only needs to connect the metal electrode to the polyaniline electrode to realize fading. When the connection is disconnected, the coloring can be realized through the doping reaction of polyaniline, so the coloring and fading process does not need Any external power supply, energy saving and power saving;

[0040] (3) As a transparent battery, a single device can provide a voltage of about 1.2 volts, and its charging process corresponds to the coloring process, so no external power source is required and self-charging can be achieved. The charging capacity in 4 hours can reach more than 90%, which is close to the lithium-ion batteries used in commercial mobile phones and notebook computers.

Embodiment 1

[0043] Weigh 1.86g of aniline monomer and dissolve it in 200mL of 1mol / L hydrochloric acid solution, stir to obtain a transparent deposition solution, and immerse the cleaned transparent conductive substrate (fluorine-doped tin oxide, FTO conductive glass) in the above deposition solution as a working electrode , platinum sheet and silver / silver chloride electrode were used as counter electrode and reference electrode, respectively. The polyaniline electrode was obtained by constant-voltage deposition at a voltage of 1.2 volts for 2 minutes, washed with deionized water and absolute ethanol, and then dried with nitrogen gas for later use;

[0044] Thin metal aluminum films are deposited on one side or both sides of another FTO conductive glass by DC sputtering, and an aluminum target with a purity of 99.99% is selected as the sputtering source. The sputtering process is as follows: first, the working pressure is 2.5 Pa, sputtering 10 minutes under the condition of sputtering po...

Embodiment 2

[0047] Weigh 0.46g of aniline monomer and dissolve it in 200mL of 0.25mol / L hydrochloric acid solution, stir to obtain a transparent deposition solution, and immerse the cleaned transparent conductive substrate (tin-doped indium oxide, ITO conductive glass) in the above deposition solution as Working electrode, platinum sheet and silver / silver chloride electrode were used as counter electrode and reference electrode, respectively. The polyaniline electrode was obtained by constant voltage deposition at 0.5 volts for 30 minutes. After cleaning with deionized water and absolute ethanol, blow dry with nitrogen for later use;

[0048] Thin metal aluminum films are deposited on one side or both sides of another ITO conductive glass by DC sputtering, and an aluminum target with a purity of 99.99% is selected as the sputtering source. The sputtering process is as follows: first, the working pressure is 1.5 Pa, sputtering under the condition of 130W sputtering power is 30 minutes; Th...

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Abstract

The invention relates to a reductive metal/polyaniline electrochromic battery. The reductive metal/polyaniline electrochromic battery comprises a polyaniline electrode, a reductive metal electrode disposed opposite to the polyaniline electrode, a silicone pad arranged between the polyaniline electrode and the reductive metal electrode for encapsulation, an electrolyte located in a space defined by the polyaniline electrode, the reductive metal electrode and the silicone pad and a switch for disconnecting or connecting the electric connection of polyaniline electrode and the reductive metal electrode, wherein the polyaniline electrode consists of a first transparent conductive substrate and a polyaniline film deposited on the surface of the first transparent conductive substrate, the reductive metal electrode comprises a second transparent conductive substrate, the outer portion of one side of the second transparent conductive substrate at least facing the polyaniline electrode is covered with a reductive metal film. The preparation method is simple and the cost is low, and the resulting electrochromic battery has the advantages of simple structure, convenient operation, energy conservation and storage.

Description

technical field [0001] The invention belongs to the field of preparation of multifunctional electrochromic devices, and in particular relates to a preparation method of a reducing metal / polyaniline electrochromic battery. Background technique [0002] Electrochromism refers to the phenomenon that the valence state and chemical composition of materials undergo reversible changes under the action of an electric field, resulting in changes in their optical properties, resulting in discoloration. Glass windows constructed using this characteristic of electrochromic materials can dynamically adjust sunlight according to people's wishes, thereby selectively absorbing or reflecting external heat radiation, reducing the cooling of buildings such as office buildings and residential buildings in summer And the large amount of energy that must be consumed to keep warm in winter, electrochromic technology has important application value and prospects in the fields of smart windows, disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/155
CPCG02F1/155
Inventor 马董云高彦峰
Owner 南京协合新材料科技有限公司
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