CN102103297A - Method for manufacturing self-fading energy-saving electrochromic device - Google Patents
Method for manufacturing self-fading energy-saving electrochromic device Download PDFInfo
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- CN102103297A CN102103297A CN2011100084126A CN201110008412A CN102103297A CN 102103297 A CN102103297 A CN 102103297A CN 2011100084126 A CN2011100084126 A CN 2011100084126A CN 201110008412 A CN201110008412 A CN 201110008412A CN 102103297 A CN102103297 A CN 102103297A
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- electrochromic device
- prussian blue
- transparent conducting
- deionized water
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Abstract
The invention discloses a method for manufacturing a self-fading energy-saving electrochromic device. The method comprises the following steps of: dissolving 0.1 to 0.6g of iron chloride and 0.1 to 0.9g of potassium chloride in 50 to 100ml of deionized water and stirring to obtain mixed solution at the concentration of between 5 and 50mM; adding 3 to 10mL of potassium ferricyanide solution at the concentration of 10 percent into the mixed solution, adding the deionized water until the volume is 100 to 200mL and stirring to obtain electrolyte; placing transparent conductive glass in the electrolyte and electrodepositing a prussian blue film on the transparent conductive glass, wherein the deposition current density is negative 10 to 100mu A/cm<2>, and the deposition time is 100 to 500s; cutting reducing metal into fine strips and adhering the fine strips to one side or two sides of a conductive surface of another transparent conductive glass; and assembling the transparent conductive glass to which a metal sheet is adhered, the transparent conductive glass on which the prussian blue is deposited, normal glass or rubber for packaging side faces and a bottom surface and the electrolyte into the electrochromic device. The method is easy and convenient to operate and is low in cost; and energy and power can be saved.
Description
Technical field
The present invention relates to a kind of preparation method of electrochromic device.Particularly relate to a kind of preparation method from the energy-conservation electrochromic device that fades.
Background technology
Greenhouse gas emission and global warming have constituted serious threat to the mankind's sustainable development, and energy-saving and emission-reduction are effective measures of this problem of reply.Electrochromic material is externally under the effect of voltage, have light absorption, see through and the controllability of reflection, optionally absorb or reflect the heat radiation and the indoor heat transferred of prevention in the external world, reduce buildingss such as office block and residential houses and feel nice and cool warm and a large amount of energy that must expend with the maintenance in winter in the maintenance in summer.The electrochromism technology all has important use to be worth and tempting application prospect in fields such as smart window, display, camouflages.
Electrochromic material can be divided into three types in inorganics, organism and polymkeric substance.Tungstic acid (WO
3) be modal electrochromic material, it has higher contrast ratio and stable preferably.Organism and polymkeric substance generally have response speed faster.Yet, WO
3Response speed slow, be generally several to tens seconds; And the light of organism and polymkeric substance, thermal stability, oxidation resistance are poor.Prussian blue (ferric ferrocyanide) is a kind of common inorganic dyestuff, and its special electrochromic property has been subjected to extensive concern.Prussian bluely can show multiple color under different conditions: itself is for blue; It is white to be reduced to colourless Prussia, also can be oxidized to Prussian green, also can further be oxidized to more Prussia's Huang of high oxidation state.Prussian blue electrochromic process has response speed faster, can reach the hundreds of millisecond to several seconds.
The electrochromism smart window has significant application value in the energy-saving and emission-reduction field, but its change color needs electricity consumption, and therefore, its power consumption is few more good more.Basic electrochromic device generally is made up of transparent conducting glass, electrochomeric films, electrolyte, transparent conducting glass.On two transparent conducting glass, apply reverse voltage alternately, can make the color of device that reversible variation takes place.But the trouble that reverse external voltage has caused circuit design and installed.Reducing metal and Prussian blue electrode potential have than big difference, and they can form primary element in electrolyte, and the voltage that utilizes primary element to produce can drive Prussian blue film and fade, and this is equivalent to insert in electrochromic device inside a battery.Electrochromic device is restained, only need be provided a unidirectional external voltage to get final product.Therefore, the electrochromic device of this special construction only need provide that a unidirectional external voltage can control device fades, painted reversible variation, has save reverse voltage, has simplified the power supply setting.Simultaneously, this variable color mode can be saved the power consumption of half.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of can solve common electrochromism response device speed slow, shortcoming and problem such as adverse external voltage, the preparation method of the energy-conservation electrochromic device that fades certainly easy and simple to handle, that cost is low, energy-conservation need be set.
The technical solution adopted in the present invention is: a kind of preparation method from the energy-conservation electrochromic device that fades comprises the steps:
1) 0.1～0.6g iron chloride, 0.1～0.9g potassium chloride are dissolved in the 50-100mL deionized water, stir and obtain the mixed solution that concentration is 5-50mM;
2) the Hexacyanoferrate potassium solution with 3～10mL 10% adds in the above-mentioned mixed solution, adds deionized water to 100～200mL, stirs, and obtains electrolytic solution;
3) will prepare the transparent conducting glass of cleaning and put into electrolytic solution, and prepare the Prussian blue film of electro-deposition on the transparent conducting glass of cleaning, depositing current density is negative 10～100 μ A/cm
2, sedimentation time is 100～500s;
4) reducing metal is cut into the one or both sides that fine strip shape is pasted on another piece transparent conducting glass conducting surface, keeps center section transparent;
5) transparent conducting glass that will be pasted with sheet metal and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and electrolyte are assembled into electrochromic device.
Also comprise with the deionized water electrolytic solution that Prussian blue film surface is residual after the step 3 and rinsing well.
Also comprise Prussian blue film is dried naturally.
Preparation method from the energy-conservation electrochromic device that fades of the present invention has following advantage and beneficial effect:
1, in the time of need fading, only working electrode need be linked to each other with lead with reducing metal gets final product, and without any need for external power source; Need when painted, with power supply connect working electrode with to electrode, and on working electrode, apply positive voltage and get final product.Not only can save the power consumption of half like this, and save the trouble that reverse electrical source is installed.
2, easy and simple to handle, energy saving, cost are low.
Description of drawings
Fig. 1 is from fading the Structures of Electrochromic Devices synoptic diagram;
Fig. 2 is the design sketch of change color before and after Prussian blue film is reduced by iron bar, and wherein (a) is the design sketch before the reduction, (b) is the design sketch after the reduction;
Fig. 3 is the design sketch of change color before and after made electrochromic device is reduced by aluminium flake, and wherein (a) is the design sketch before the reduction, (b) is the design sketch after the reduction;
Fig. 4 is the change curve of transmittance before and after made electrochromic device fades, and wherein (a) is that transmittance is to fade the back transmittance with the wavelength change curve (b) with the wavelength change curve before fading.
Wherein:
1: glass 2:ITO
3: Prussian blue film 4: long and thin metal sheet
5: electrolyte
Embodiment
Below in conjunction with embodiment and accompanying drawing the preparation method from the energy-conservation electrochromic device that fades of the present invention is made a detailed description, but content of the present invention not only is confined to the following examples.
Preparation method from the energy-conservation electrochromic device that fades of the present invention comprises the steps:
1) 0.1～0.6g iron chloride, 0.1～0.9g potassium chloride are dissolved in the 50-100mL deionized water, stir and obtain the mixed solution that concentration is 5-50mM;
2) the Hexacyanoferrate potassium solution with 3～10mL 10% adds in the above-mentioned mixed solution, adds deionized water to 100～200mL, stirs, and obtains electrolytic solution;
3) will prepare the transparent conducting glass of cleaning and put into electrolytic solution, and prepare the Prussian blue film of electro-deposition on the transparent conducting glass of cleaning, depositing current density is negative 10～100 μ A/cm
2, sedimentation time is 100～500s;
4) rinse well with the deionized water electrolytic solution that Prussian blue film surface is residual;
5) Prussian blue film is dried naturally;
6) reducing metal is cut into the one or both sides that fine strip shape is pasted on another piece transparent conducting glass conducting surface, keeps center section transparent;
7) transparent conducting glass that will be pasted with sheet metal and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and electrolyte are assembled into electrochromic device.
Be three examples that adopt the preparation method of the energy-conservation electrochromic device that fades certainly of the present invention below:
Example 1
1) 0.3g iron chloride, 0.3g potassium chloride are dissolved in the 100mL deionized water, stir and obtain the mixed solution that concentration is 18mM iron chloride and 40mM potassium chloride;
2) the Hexacyanoferrate potassium solution with 6mL 10% adds in the above-mentioned mixed solution, adds deionized water to 200mL, stirs, and obtains electrolytic solution;
3) tin indium oxide (ITO) transparent conducting glass, platinum electrode, silver/silver chloride contrast electrode are put into electrolytic solution respectively, set depositing current density and be negative 40 μ A/cm
2, sedimentation time is 200s, is depositing Prussian blue film on the ITO electro-conductive glass;
4) rinse well with the deionized water electrolytic solution that Prussian blue film surface is residual;
5) Prussian blue film is dried naturally;
6) aluminium flake is cut into fine strip shape, is pasted on the one or both sides of another piece transparent conducting glass conducting surface, keep center section transparent;
7) transparent conducting glass that will be pasted with aluminium flake and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and potassium chloride electrolytic solution are assembled into electrochromic device.
Example 2
1) 0.1g iron chloride, 0.15g potassium chloride are dissolved in the 50mL deionized water, stir and obtain the mixed solution that concentration is 12mM iron chloride and 40mM potassium chloride;
2) the Hexacyanoferrate potassium solution with 3mL 10% adds in the above-mentioned mixed solution, adds deionized water to 100mL, stirs, and obtains electrolytic solution;
3) ITO transparent conducting glass, platinum electrode, silver/silver chloride contrast electrode are put into electrolytic solution respectively, set depositing current density and be negative 40 μ A/cm
2, sedimentation time is 200s, is depositing Prussian blue film on the ITO electro-conductive glass;
4) rinse well with the deionized water electrolytic solution that Prussian blue film surface is residual;
5) Prussian blue film is dried naturally;
6) aluminium flake is cut into fine strip shape, is pasted on the one or both sides of another piece transparent conducting glass conducting surface, keep center section transparent;
7) transparent conducting glass that will be pasted with aluminium flake and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and potassium chloride electrolytic solution are assembled into electrochromic device.
Example 3
1) 0.3g iron chloride, 0.3g potassium chloride are dissolved in the 100mL deionized water, stir and obtain the mixed solution that concentration is 18mM iron chloride and 40mM potassium chloride;
2) the Hexacyanoferrate potassium solution with 6mL 10% adds in the above-mentioned mixed solution, adds deionized water to 200mL, stirs, and obtains electrolytic solution;
3) ITO transparent conducting glass, platinum electrode, silver/silver chloride contrast electrode are put into electrolytic solution respectively, set depositing current density and be negative 30 μ A/cm
2, sedimentation time is 300s, is depositing Prussian blue film on the ITO electro-conductive glass;
4) rinse well with the deionized water electrolytic solution that Prussian blue film surface is residual;
5) Prussian blue film is dried naturally;
6) aluminium flake is cut into fine strip shape, is pasted on the one or both sides of another piece transparent conducting glass conducting surface, keep center section transparent;
7) transparent conducting glass that will be pasted with aluminium flake and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and potassium chloride electrolytic solution are assembled into electrochromic device.
Claims (3)
1. the preparation method from the energy-conservation electrochromic device that fades is characterized in that, comprises the steps:
1) 0.1～0.6g iron chloride, 0.1～0.9g potassium chloride are dissolved in the 50-100mL deionized water, stir and obtain the mixed solution that concentration is 5-50mM;
2) the Hexacyanoferrate potassium solution with 3～10mL 10% adds in the above-mentioned mixed solution, adds deionized water to 100～200mL, stirs, and obtains electrolytic solution;
3) will prepare the transparent conducting glass of cleaning and put into electrolytic solution, and prepare the Prussian blue film of electro-deposition on the transparent conducting glass of cleaning, depositing current density is negative 10～100 μ A/cm
2, sedimentation time is 100～500s;
4) reducing metal is cut into the one or both sides that fine strip shape is pasted on another piece transparent conducting glass conducting surface, keeps center section transparent;
5) transparent conducting glass that will be pasted with sheet metal and the simple glass that deposits Prussian blue transparent conducting glass, side and bottom surface encapsulation usefulness or rubber and electrolyte are assembled into electrochromic device.
2. the preparation method from the energy-conservation electrochromic device that fades according to claim 1 is characterized in that, also comprises with the deionized water electrolytic solution that Prussian blue film surface is residual after the step 3 and rinsing well.
3. the preparation method from the energy-conservation electrochromic device that fades according to claim 2 is characterized in that, also comprises Prussian blue film is dried naturally.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467711A (en) * | 2015-12-18 | 2016-04-06 | 杭州福斯特光伏材料股份有限公司 | All-solid-state electrochromic device having controllable color-changing area and method for preparing same |
| CN106226364A (en) * | 2016-07-06 | 2016-12-14 | 北京师范大学 | A kind of visualization bipolar electrode detection device and application thereof |
| CN106886115A (en) * | 2015-12-16 | 2017-06-23 | 南京协合新材料科技有限公司 | A kind of reducing metal/polyaniline electrochromism battery and preparation method thereof |
| CN107555809A (en) * | 2016-07-01 | 2018-01-09 | 中国科学院上海硅酸盐研究所 | A kind of electrochromism nano compound film and preparation method thereof |
| CN109031834A (en) * | 2018-07-23 | 2018-12-18 | 上海第二工业大学 | A kind of self-charging polypyrrole discoloration battery and preparation method thereof |
| CN111610679A (en) * | 2020-04-30 | 2020-09-01 | 北京大学深圳研究生院 | One-way perspective glass with electrochromic switch and preparation method thereof |
| CN112305829A (en) * | 2020-11-13 | 2021-02-02 | 烟台大学 | Electrochromic glass device, and preparation method and application thereof |
| CN112612166A (en) * | 2020-12-23 | 2021-04-06 | 浙江工业大学 | Electrolyte for electrochromic device and corresponding electrochromic device |
| CN113253534A (en) * | 2021-05-13 | 2021-08-13 | 吉林大学 | Electrochromic device and manufacturing method thereof |
| CN113777856A (en) * | 2021-08-24 | 2021-12-10 | 同济大学 | Method for regulating and controlling non-linear absorption performance of Prussian blue film and Prussian blue film |
| CN113867065A (en) * | 2021-11-15 | 2021-12-31 | 西北工业大学 | Preparation method of prussian blue electrochromic film |
| CN114859614A (en) * | 2022-06-23 | 2022-08-05 | 广西大学 | Prussian blue dual-waveband electrochromic device with photo-thermal regulation function |
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| CN106886115A (en) * | 2015-12-16 | 2017-06-23 | 南京协合新材料科技有限公司 | A kind of reducing metal/polyaniline electrochromism battery and preparation method thereof |
| CN106886115B (en) * | 2015-12-16 | 2020-04-10 | 南京协合新材料科技有限公司 | Reductive metal/polyaniline electrochromic battery and preparation method thereof |
| CN105467711A (en) * | 2015-12-18 | 2016-04-06 | 杭州福斯特光伏材料股份有限公司 | All-solid-state electrochromic device having controllable color-changing area and method for preparing same |
| CN105467711B (en) * | 2015-12-18 | 2019-03-19 | 杭州福斯特应用材料股份有限公司 | A kind of full-solid electrochromic device and preparation method thereof that discoloration area is controllable |
| CN107555809A (en) * | 2016-07-01 | 2018-01-09 | 中国科学院上海硅酸盐研究所 | A kind of electrochromism nano compound film and preparation method thereof |
| CN106226364A (en) * | 2016-07-06 | 2016-12-14 | 北京师范大学 | A kind of visualization bipolar electrode detection device and application thereof |
| CN109031834A (en) * | 2018-07-23 | 2018-12-18 | 上海第二工业大学 | A kind of self-charging polypyrrole discoloration battery and preparation method thereof |
| CN111610679A (en) * | 2020-04-30 | 2020-09-01 | 北京大学深圳研究生院 | One-way perspective glass with electrochromic switch and preparation method thereof |
| CN112305829A (en) * | 2020-11-13 | 2021-02-02 | 烟台大学 | Electrochromic glass device, and preparation method and application thereof |
| CN112305829B (en) * | 2020-11-13 | 2022-05-24 | 烟台大学 | Preparation method and application of electrochromic glass device |
| CN112612166A (en) * | 2020-12-23 | 2021-04-06 | 浙江工业大学 | Electrolyte for electrochromic device and corresponding electrochromic device |
| CN113253534A (en) * | 2021-05-13 | 2021-08-13 | 吉林大学 | Electrochromic device and manufacturing method thereof |
| CN113777856A (en) * | 2021-08-24 | 2021-12-10 | 同济大学 | Method for regulating and controlling non-linear absorption performance of Prussian blue film and Prussian blue film |
| CN113777856B (en) * | 2021-08-24 | 2023-08-29 | 同济大学 | Method for regulating nonlinear absorption performance of Prussian blue film and Prussian blue film |
| CN113867065A (en) * | 2021-11-15 | 2021-12-31 | 西北工业大学 | Preparation method of prussian blue electrochromic film |
| CN114859614A (en) * | 2022-06-23 | 2022-08-05 | 广西大学 | Prussian blue dual-waveband electrochromic device with photo-thermal regulation function |
| CN114859614B (en) * | 2022-06-23 | 2023-12-05 | 广西大学 | Prussian blue dual-band electrochromic device with photo-thermal regulation function |
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