CN115079481A - Nitrate ion electrolyte for electrochromism and application thereof - Google Patents
Nitrate ion electrolyte for electrochromism and application thereof Download PDFInfo
- Publication number
- CN115079481A CN115079481A CN202210573021.7A CN202210573021A CN115079481A CN 115079481 A CN115079481 A CN 115079481A CN 202210573021 A CN202210573021 A CN 202210573021A CN 115079481 A CN115079481 A CN 115079481A
- Authority
- CN
- China
- Prior art keywords
- aluminum nitrate
- electrolyte
- electrochromic
- aluminum
- prepared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 56
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 title claims abstract description 4
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims abstract description 63
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- XNDZQQSKSQTQQD-UHFFFAOYSA-N 3-methylcyclohex-2-en-1-ol Chemical compound CC1=CC(O)CCC1 XNDZQQSKSQTQQD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 239000000017 hydrogel Substances 0.000 claims abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 6
- 238000001755 magnetron sputter deposition Methods 0.000 claims abstract description 6
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims abstract 2
- 239000011521 glass Substances 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 9
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 6
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 5
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000002687 intercalation Effects 0.000 claims 1
- 238000009830 intercalation Methods 0.000 claims 1
- 150000008040 ionic compounds Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000004506 ultrasonic cleaning Methods 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 description 7
- -1 aluminum ions Chemical class 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- 239000007784 solid electrolyte Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/1514—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1516—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising organic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/1514—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1523—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
- G02F1/1525—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material characterised by a particular ion transporting layer, e.g. electrolyte
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses an electrochromic nitrate ion electrolyte and application thereof. The invention mainly uses the aluminum nitrate electrolyte as the electrolyte layer of the electrochromic device to prepare the electrochromic device after optimizing the electrochromic layer. Weighing a certain weight of aluminum nitrate nonahydrate, adding the aluminum nitrate nonahydrate into a proper amount of deionized water, and fully stirring to obtain an aluminum nitrate solution with the concentration of 1-2M; the aluminum nitrate hydrogel electrolyte can be prepared by taking an aluminum nitrate aqueous solution as a basic electrolyte and adding acrylamide, and the quasi-solid aluminum nitrate electrolyte can be prepared by adding PVA. The aluminum nitrate electrolyte is used, and under the condition of the same concentration and the same state as the aluminum chloride electrolyte, the aluminum nitrate electrolyte ensures the excellent cycle stability of devices using the aluminum chloride electrolyte, and meanwhile, the aluminum nitrate does not have the severe hydrolysis phenomenon in the preparation process, and the severe hydrolysis phenomenon can be generated when the aluminum chloride solution is prepared. The application of the aluminum nitrate electrolyte greatly improves the safety of the device preparation process. The invention applies the magnetron sputtering technology to prepare the electrochromic layer which is not easy to fall off, thereby improving the performance of the electrochromic layer, and the more stable electrochromic layer provides a precondition for the application of the aluminum nitrate electrolyte in the electrochromic device. The preparation of the aluminum nitrate electrolyte can be carried out under normal pressure, has low requirement on equipment and is convenient for wide application.
Description
Technical Field
The invention belongs to the field of electrochromic materials and preparation and application thereof, and particularly relates to a manufacturing method and application of an aluminum nitrate electrolyte applied to an electrochromic device.
Background
Electrochromism is essentially a redox chemical reaction process, and the material of the electrochromism layer can generate reversible color change under the condition of an external electric field, and generally shows the reversibility between colorless transparency and color. The material capable of generating electrochromism is called electrochromic material, and devices made of the electrochromic material are electrochromic devices. The electrochromic device is mainly composed of a four-layer structure: a transparent substrate layer, a conductive layer, an electrolyte layer (ion conductive layer), an electrochromic layer. The electrolyte layer (ion conducting layer) is used as a key structure in the electrochromic device, is an important conducting medium between device electrodes, and provides compensating ions for the reaction of the electrochromic material. Meanwhile, the color-changing layer is used as an ion-embedded layer, and the stability of the structure also has important influence on the performance of the device. Because the content of the lithium element in the earth crust is only 0.0065%, the resource reserves are not large, the long-term stable development of the electrochromic device is not facilitated, and the industrial production cost is higher. Much of the current research is gradually being transferred to the use of multivalent ions, particularly trivalent aluminum ions. Aluminum chloride is used as a common electrolyte material, so that an electrochromic device has excellent device performance, but the aluminum chloride is very easy to hydrolyze, and particularly in the preparation process of an aluminum chloride aqueous solution, hydrolysis generates a large amount of heat and generates chlorine, so that the safety is low.
Disclosure of Invention
The aluminum nitrate electrolyte prepared by applying the aluminum nitrate to the electrolyte layer of the electrochromic device and preparing the aluminum nitrate solution according to a proper proportion solves the potential safety hazard problem caused by hydrolysis in the preparation process of aluminum chloride and simultaneously maintains the electrochromic performance of the aluminum chloride electrolyte device.
The aluminum nitrate electrolyte comprises the following steps in sequence:
weighing a certain weight of aluminum nitrate nonahydrate, adding the aluminum nitrate nonahydrate into a proper amount of deionized water, and fully stirring to obtain an aluminum nitrate solution with the concentration of 1-2M; the aluminum nitrate hydrogel electrolyte can be prepared by taking an aluminum nitrate aqueous solution as a basic electrolyte, adding acrylamide, a small amount of methylene bisacrylamide, ammonium persulfate and tetramethylethylenediamine, and the quasi-solid aluminum nitrate electrolyte can be prepared by adding polyvinyl alcohol and propylene carbonate.
Specifically, the aluminum nitrate nonahydrate is selected as the aluminum nitrate aqueous solution, and the aluminum nitrate solution is prepared to serve as the aluminum ion electrolyte. The medicine is a common industrial product with the purity of more than 99 percent on the market, has wide sources, is easy to obtain and has low price.
Specifically, the water for preparing the aluminum nitrate solution is deionized water, the medicine is weighed according to the concentration requirement and mixed with a certain amount of deionized water, and the mixture is fully stirred.
Specifically, when the aluminum nitrate electrolyte is prepared, the preparation methods of the aqueous electrolyte, the quasi-solid electrolyte and the solid electrolyte are as follows:
1) weighing a certain weight of aluminum nitrate nonahydrate, adding the aluminum nitrate nonahydrate into a proper amount of deionized water, and fully stirring to obtain an aluminum nitrate solution with the concentration of 1-2M, namely an aluminum nitrate water electrolyte;
2) a certain weight part of polyvinyl alcohol (polyvinyl alcohol: 1.5g of aluminum nitrate solution: 20ml) of the mixed solution is added into a prepared aluminum nitrate solution, a drop of propylene carbonate is added dropwise, the mixed solution is put into a water bath kettle to be stirred and heated to 95 ℃ in a water bath, the constant temperature stirring is carried out for 20min until the electrolyte is completely transparent, and the aluminum nitrate quasi-solid electrolyte is obtained after the mixed solution is cooled at room temperature;
3) about 1.4g of acrylamide and a small amount (weight in mg) of methylene bisacrylamide, ammonium persulfate and tetramethylethylenediamine are added to each 10ml of the prepared aluminum nitrate aqueous solution, and the mixture is fully stirred and dried at a constant temperature of 50 ℃ for 30min to prepare the hydrogel electrolyte.
According to the invention, aluminum nitrate is used as an electrolyte layer (ion conducting layer) of the electrochromic device, and compared with aluminum chloride, the preparation safety of the electrochromic device using aluminum nitrate is improved while the cycle stability is maintained. The electrolyte can be carried out under normal pressure in the whole process, the operation is simple, the raw material cost is low, the requirement on production equipment is low, and the application prospect is very wide.
The invention has the following advantages:
(1) the performance is excellent: the ionic radius is a key factor in determining the color fading speed and the cycling stability of the electrochromic device. The proton mobility rate at the smallest radius and mass is much faster than other ions, resulting in higher electrochromic properties. Compared with the lithium ion radius (76pm), the aluminum ion radius (53.5pm) has higher ion migration rate, so that the coloring and fading speed of the device can be higher, the color development effect is better, the cycling stability is improved to a certain extent when the aluminum ions in the aluminum nitrate electrolyte are applied to the electrochromic device, and the application value is certain.
(2) The preparation method is simple, controllable and easy to operate: the preparation of the aluminum nitrate electrolyte has no violent hydrolysis phenomenon and higher safety performance. And the concentration of aluminum ions in the electrolyte is controlled by controlling the ratio of aluminum nitrate to deionized water. Within a certain range, the higher the ion concentration is, the more obvious the performance improvement effect of the aluminum ion applied to the electrochromic device is. Therefore, under the premise of no change of other conditions, the electrochromic effect can be controlled by controlling the concentration of aluminum ions, so that the controllable color rendering degree of the device can be realized in a certain range.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples, wherein the raw materials are all commercial products. The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as variations or modifications of the equivalent form of the present invention, which may occur to those skilled in the art, are intended to be included within the scope of the appended claims.
Example 1:
cutting a conductive glass substrate with the size of 2cm long and 1cm wide, cleaning, and drying for later use. 3.75g of aluminum nitrate nonahydrate (AR, 99.0%) was weighed at room temperature and dissolved in 10ml of deionized water, and sufficiently stirred until a clear aqueous solution was obtained, to obtain 1M aluminum nitrate aqueous electrolyte. And taking out the clean conductive substrate and the conductive ITO glass plated with the tungsten oxide color changing layer by magnetron sputtering, and preparing and assembling to obtain the aluminum nitrate electrolyte electrochromic device. FIG. 1 is a schematic diagram of a device structure; FIG. 2 is a digital diagram of the device, wherein a, b and c are respectively a picture display of the device before uncolored, after colored and after color fading; FIG. 3 is an electrochromic cyclic transmittance test plot of an aluminum nitrate aqueous electrolyte applied to an electrochromic device; fig. 4 is a CV curve diagram of an aluminum nitrate electrolyte electrochromic device, which is known to have good stability. The device has a modulation range of about 25% transmittance at 650nm measured every 10s under a continuous bias of 2.5V.
Example 2
Cutting a conductive glass substrate with the size of 2cm long and 1cm wide, cleaning, and drying for later use. 3.75g of aluminum nitrate nonahydrate (AR, 99.0%) was weighed into 10ml of deionized water at room temperature, and stirred well to a clear aqueous solution to obtain a 1M aqueous aluminum nitrate solution. Then 0.75g of polyvinyl alcohol is weighed and added into the prepared aluminum nitrate solution, a drop of propylene carbonate is added dropwise, the mixture is placed into a water bath kettle to be stirred in a water bath and heated to 95 ℃, then the mixture is stirred for 20min at constant temperature until the electrolyte is completely transparent, and the aluminum nitrate quasi-solid electrolyte is obtained after the mixture is cooled at room temperature. And taking out the clean conductive substrate and the conductive ITO glass plated with the tungsten oxide color changing layer by magnetron sputtering, and preparing and assembling to obtain the aluminum nitrate electrolyte electrochromic device. Fig. 5 is an electrochromic cyclic transmittance test chart of an electrochromic device to which the aluminum nitrate quasi-solid electrolyte is applied, and it is easily known that the device has good stability. The device has a modulation range of about 28% transmittance at 650nm measured every 10s under a continuous bias of 2.5V.
Example 3
Cutting a conductive glass substrate with the size of 2cm long and 1cm wide, cleaning, and drying for later use. 3.75g of aluminum nitrate nonahydrate (AR, 99.0%) was weighed into 10ml of deionized water at room temperature, and stirred well to a clear aqueous solution to obtain a 1M aqueous aluminum nitrate solution. Then, 1.4g of acrylamide, a small amount of methylenebisacrylamide (3.3mg), ammonium persulfate (22mg), and tetramethylethylenediamine (10. mu.l) were added thereto, and the mixture was sufficiently stirred and dried at a constant temperature of 50 ℃ for 30 minutes to prepare an aluminum nitrate hydrogel electrolyte. And taking out the clean conductive substrate and the conductive ITO glass plated with the tungsten oxide color-changing layer by magnetron sputtering, and preparing and assembling to obtain the aluminum nitrate electrolyte electrochromic device. Fig. 6 is an electrochromic cyclic transmittance test chart of an electrochromic device to which the aluminum nitrate hydrogel electrolyte is applied, and it is easy to know that the device has better stability. The device has a modulation range of about 20% transmittance at 650nm measured every 10s under a continuous bias of 2.5V.
Claims (4)
1. An electrochromic nitrate ion electrolyte and application thereof are characterized in that: the electrolyte of the electrochromic layer in the electrochromic device is aluminum nitrate. Compared with aluminum chloride, aluminum nitrate is an ionic compound and has both an ionic bond and a covalent bond, and aluminum chloride is a covalent compound and has only a covalent bond. And when the electrolyte solution is prepared, the aluminum nitrate does not have violent hydrolysis reaction, and the safety is higher.
2. The aluminum nitrate electrolyte applied to electrochromic devices according to claim 1, wherein the preparation method of the aluminum nitrate electrolyte comprises the following steps:
1) weighing a certain weight of aluminum nitrate nonahydrate, adding the aluminum nitrate nonahydrate into a proper amount of deionized water, and fully stirring to obtain an aluminum nitrate solution with the concentration of 1-2M;
2) the quasi-solid aluminum nitrate electrolyte can be prepared by taking an aluminum nitrate aqueous solution as a basic electrolyte and adding polyvinyl alcohol and propylene carbonate;
3) the aluminum nitrate hydrogel electrolyte can be prepared by taking an aluminum nitrate aqueous solution as a basic electrolyte and adding acrylamide, a small amount of methylene bisacrylamide, ammonium persulfate and tetramethylethylenediamine.
3. The application of the aluminum nitrate electrolyte solution to an electrochromic device, wherein the color-changing layer is a magnetron sputtering tungsten oxide film, and the method is characterized in that the prepared tungsten oxide electrochromic layer has high adhesion to conductive ITO glass, the film layer is not easy to fall off in the color-changing process of ion intercalation, and the excellent stability of the film layer provides guarantee for the use of the aluminum nitrate electrolyte solution. The preparation method comprises the following steps:
1) carrying out ultrasonic cleaning, cutting and airing the ITO conductive glass with the size of 2cm in length and 1cm in width;
2) and sputtering a tungsten oxide film color-changing layer on the ITO conductive glass by adopting a magnetron sputtering technology to obtain the transparent electrochromic film.
4. The aluminum nitrate electrolyte as claimed in claim 1 for use in electrochromic devices, wherein the aluminum nitrate electrolyte is characterized in that: the aluminum nitrate electrolyte can achieve better stability in a liquid state, a quasi-solid state and a solid state. The aluminum nitrate nonahydrate, the polyvinyl alcohol and the propylene carbonate are all commercial industrial products with the purity of more than 99 percent, and the water for preparing the aqueous solution is deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210573021.7A CN115079481A (en) | 2022-05-24 | 2022-05-24 | Nitrate ion electrolyte for electrochromism and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210573021.7A CN115079481A (en) | 2022-05-24 | 2022-05-24 | Nitrate ion electrolyte for electrochromism and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115079481A true CN115079481A (en) | 2022-09-20 |
Family
ID=83248335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210573021.7A Pending CN115079481A (en) | 2022-05-24 | 2022-05-24 | Nitrate ion electrolyte for electrochromism and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115079481A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170363928A1 (en) * | 2015-01-14 | 2017-12-21 | Universite De Liege | Improved process of ultrasonic spray pyrolysis deposition of one or more electrochromic and/or electrolytic films on a substrate |
| CN110183700A (en) * | 2019-05-30 | 2019-08-30 | 中国科学技术大学 | The preparation method of silver nanowires flexible and transparent conductive electrode, electrochromic device and preparation method thereof |
| CN113568235A (en) * | 2021-06-28 | 2021-10-29 | 浙江工业大学 | Electrochromic device based on multifunctional hydrogel electrolyte and preparation method thereof |
-
2022
- 2022-05-24 CN CN202210573021.7A patent/CN115079481A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170363928A1 (en) * | 2015-01-14 | 2017-12-21 | Universite De Liege | Improved process of ultrasonic spray pyrolysis deposition of one or more electrochromic and/or electrolytic films on a substrate |
| CN110183700A (en) * | 2019-05-30 | 2019-08-30 | 中国科学技术大学 | The preparation method of silver nanowires flexible and transparent conductive electrode, electrochromic device and preparation method thereof |
| CN113568235A (en) * | 2021-06-28 | 2021-10-29 | 浙江工业大学 | Electrochromic device based on multifunctional hydrogel electrolyte and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Highly contrasted and stable electrochromic device based on well-matched viologen and triphenylamine | |
| Avellaneda et al. | All solid-state electrochromic devices with gelatin-based electrolyte | |
| CN103172274B (en) | A kind of preparation method of nickel oxide/polyaniline composite electrochromic film | |
| CN111061109B (en) | Electrochromic device with asymmetric electrode structure, preparation method and application | |
| JPS593731B2 (en) | radiation reflector | |
| Chen et al. | All solid state electrochromic devices based on the LiF electrolyte | |
| Lin et al. | Study of MoO3–NiO complementary electrochromic devices using a gel polymer electrolyte | |
| CN109634016B (en) | Low-voltage quasi-solid electrolyte film for electrochromism and preparation and application thereof | |
| CN109634021A (en) | A kind of quasi- solid-state tungstic acid electrochromic device and preparation method thereof | |
| Chen et al. | A novel ionically crosslinked gel polymer electrolyte as an ion transport layer for high-performance electrochromic devices | |
| Zhang et al. | Two birds with one stone: a novel thermochromic cellulose hydrogel as electrolyte for fabricating electric-/thermal-dual-responsive smart windows | |
| Li et al. | Durability-reinforced electrochromic device based on surface-confined Ti-doped V2O5 and solution-phase viologen | |
| CN114967264B (en) | Electrochromic gel and anti-dazzle intelligent glass | |
| CN112441750A (en) | Method for preparing tungsten oxide electrochromic film by electrochemical deposition method | |
| KR100994485B1 (en) | The Electrode comprising porous nickel oxide thin layer, preparation method and use in electrochromic device and lithium battery therof | |
| Tang et al. | Low-Spin Fe Redox-Based Prussian Blue with excellent selective dual-band electrochromic modulation and energy-saving applications | |
| CN108996918A (en) | A kind of nano NiOxElectrochomeric films and its preparation method and application | |
| Zhou et al. | Porous WO3· 2H2O film with large optical modulation and high coloration efficiency for electrochromic smart window | |
| CN106158997A (en) | A kind of preparation method of doped tin oxide transparent conductive film | |
| CN115079481A (en) | Nitrate ion electrolyte for electrochromism and application thereof | |
| Chen et al. | A salt-free poly (acrylic acid) hydrogel electrolyte with self-released ions for quasi-solid-state electrochromic devices | |
| CN105700264A (en) | Central air conditioner system based on suppressible data panel | |
| CN110703528A (en) | Preparation and application of high-cycle-performance quasi-solid electrochromic PVB electrolyte film | |
| CN104762646B (en) | Production method of three-dimensional ordered macro-porous dibismuth trioxide electrochromic film | |
| CN115963666A (en) | High-stability hydrogel electrolyte for electrochromic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220920 |