CN117539096A - Hydroxypropyl methylcellulose hydrogel electrolyte for electrochromic device - Google Patents
Hydroxypropyl methylcellulose hydrogel electrolyte for electrochromic device Download PDFInfo
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- CN117539096A CN117539096A CN202210915258.9A CN202210915258A CN117539096A CN 117539096 A CN117539096 A CN 117539096A CN 202210915258 A CN202210915258 A CN 202210915258A CN 117539096 A CN117539096 A CN 117539096A
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- electrolyte
- hydrogel electrolyte
- hydroxypropyl methylcellulose
- electrochromic devices
- electrochromic
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- 239000000017 hydrogel Substances 0.000 title claims abstract description 35
- 239000003792 electrolyte Substances 0.000 title claims abstract description 27
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 title claims abstract description 18
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 title claims abstract description 18
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 title claims abstract description 18
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 6
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 6
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 20
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims description 7
- 229960003351 prussian blue Drugs 0.000 claims description 7
- 239000013225 prussian blue Substances 0.000 claims description 7
- 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
- 239000001103 potassium chloride Substances 0.000 claims description 6
- 235000011164 potassium chloride Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 4
- 239000002390 adhesive tape Substances 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
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 4
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 4
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 claims description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 2
- 125000004386 diacrylate group Chemical group 0.000 claims description 2
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 235000003270 potassium fluoride Nutrition 0.000 claims description 2
- 239000011698 potassium fluoride Substances 0.000 claims description 2
- -1 potassium tetrafluoroborate Chemical compound 0.000 claims description 2
- 239000012957 2-hydroxy-2-methyl-1-phenylpropanone Substances 0.000 claims 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims 1
- 239000013076 target substance Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000011244 liquid electrolyte Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses a hydroxypropyl methyl cellulose hydrogel electrolyte for electrochromic devices and a preparation method thereof. The electrolyte solution consists of the following components: deionized water, hydroxypropyl methyl cellulose, acrylamide, a cross-linking agent, potassium salt, hydrochloric acid and a photoinitiator. The electrolyte solution is cured under the irradiation of an ultraviolet lamp to form a hydrogel electrolyte. The novel hydrogel electrolyte has the advantages of simple preparation method, low-cost and easily-obtained raw materials, high ionic conductivity, high transparency and good electrochemical stability, and has good application in electrochromic devices.
Description
Technical Field
The invention belongs to the field of hydrogel electrolyte preparation and application, and particularly relates to preparation of hydroxypropyl methyl cellulose hydrogel electrolyte and application thereof in electrochromic devices.
Background
The intelligent window based on electrochromic device has wide application prospect in energy-saving buildings. The electrolyte, which is one of the important components of the electrochromic device, has an important effect on the performance of the electrochromic device. The traditional liquid electrolyte has high ionic conductivity, but has the problems of easy leakage, high packaging difficulty and the like. Therefore, developing a solid or quasi-solid electrolyte with high conductivity and high transparency has great significance and practical value for promoting the practical application of electrochromic devices.
The hydrogel electrolyte is a conductive polymer material with a network structure, which is formed by hydrophilic polymers and takes water as a dispersion medium. The highly crosslinked polymer network allows the hydrogel to contain a significant amount of moisture within. Because the hydrogel contains a large amount of free water molecules, the hydrogel electrolyte generally has ion conductivity which can be compared with that of a liquid electrolyte, and has wide application in electrochromic devices.
Disclosure of Invention
The invention belongs to the field of quasi-solid electrolyte preparation, and particularly relates to a novel hydrogel electrolyte for electrochromic devices and a preparation method thereof, which are expected to solve the problems that liquid electrolyte is easy to leak and solid electrolyte ion conductivity is low.
The invention also aims to provide a simple and convenient manufacturing method of the electrochromic device, wherein a 3M double faced adhesive tape is used for isolating a hollow isolation groove between two electrochromic electrodes, and the hollow isolation groove is filled with a hydrogel solution and cured in the device under the irradiation condition of an ultraviolet lamp; the thickness of the electrolyte layer in the device can be ensured to be uniform, the device can be effectively sealed, and the risk of evaporation of internal water is reduced.
The invention relates to a hydroxypropyl methyl cellulose hydrogel electrolyte and a preparation method of an electrolyte color-changing device, which comprise the following steps:
(1) Preparation of electrode materials: depositing Prussian blue and tungsten oxide on the ITO conductive glass by using an electrochemical workstation, wherein the Prussian blue and the tungsten oxide are respectively used as an anode and a cathode of the electrochromic device;
(2) Preparation of electrolyte solution: 0.075g of hydroxypropyl methylcellulose is added into 10ml of deionized water at room temperature, and the mixture is fully stirred until transparent uniform liquid is formed, then 2g of acrylamide, 0.074g of potassium salt, 0.012g of cross-linking agent, 15 mu l of hydrochloric acid solution and 40 mu l of initiator are sequentially added, and the mixture is stirred until the solution is clear and transparent;
(3) Assembly of electrochromic device: and (3) enclosing a hollow groove between the electrodes prepared in the step (1) by using 3M double faced adhesive tape, dripping the electrolyte solution prepared in the step (2), irradiating for 1-2 min under an ultraviolet lamp, curing to obtain hydrogel electrolyte, and finally packaging the device to obtain the electrochromic device.
The preparation process of the Prussian blue precursor solution in the step (1) comprises the following steps: 10mM K 3 Fe(CN) 6 FeCl 10mM 3 The KCl solution of 0.1M and the HCl solution of 0.1M are dissolved in 20mL of deionized water in sequence and stirred uniformly.
The preparation process of the tungsten trioxide precursor solution in the step (1) comprises the following steps: 0.825g of Na 2 WO 4 ·2H 2 O was dissolved in 100mL deionized water and 0.6mL H was added 2 O 2 After peroxidation, 10mL of HCl solution was added dropwise and stirred well until the solution became clear.
And (2) adopting an electrochemical deposition method, wherein ITO conductive glass is used as a working electrode, a platinum wire is used as a counter electrode, and a silver wire is used as a reference electrode.
The cross-linking agent in the step (2) is one or more than one mixture of N, N-methylene bisacrylamide, polyethylene glycol diacrylate and ethylene glycol dimethacrylate.
The potassium salt in the step (2) is one or more than two of potassium chloride, potassium bromide, potassium fluoride and potassium tetrafluoroborate.
The photoinitiator in the step (2) is one or a mixture of more than two of 2-hydroxy-2-methyl-1-phenylpropion, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-propanone and 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide.
The mass percentage concentration of the hydrochloric acid in the step (2) is 10-30%.
The invention has the following advantages:
the method for preparing the hydrogel electrolyte is simple and convenient, the prepared hydrogel electrolyte has high ion conductivity and optical transmittance, and the device based on the hydrogel can show excellent performance in electrochromic devices, and has good application prospect in the fields of intelligent color-changing windows and flexible electronic equipment.
Drawings
Fig. 1 is an ultraviolet absorption spectrum of electrochromic devices fabricated with the hydrogels of example 1 at different voltages.
Fig. 2 is a graph of maximum optical contrast and response time for an electrochromic device fabricated with the hydrogel electrolyte prepared in example 1, the prepared electrochromic device having a maximum optical contrast of 80.1%, a dye time of 1.7s, and a fade time of 1.2s.
FIG. 3 is a graph of the cycling stability of electrochromic devices made from the hydrogels of example 1; from the graph, at the maximum absorption wavelength of 710nm, the light transmittance difference value can still be kept at 85.8% of the initial state after the electrochromic device is cycled for 1000 circles.
Detailed Description
The present invention will be further described with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent.
Example 1
(1) Preparation of hydrogel electrolyte:
0.075g of hydroxypropyl methylcellulose and 40. Mu.L of the photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to 10mL of aqueous potassium chloride salt solution and stirred until dissolved; 2g of acrylamide and 0.012g of N, N-methylene bisacrylamide are weighed and added into the solution, stirring is continued for 2 hours, 10 mu L of hydrochloric acid solution is added for stirring, and finally hydrogel solution is obtained;
(2) Preparation of an electrode:
prussian blue film was prepared by constant current deposition and 0.329g of K was weighed 3 Fe(CN) 6 0.162g FeCl 3 1.491g of KCl and 1mol/L HCl were dissolved in 100mL of deionized water to give an electrodeposition solution at 13. Mu.A/cm 2 Electrodepositing for 800s at constant current density; a tungsten oxide film was prepared by a constant voltage deposition method, and 0.825g of Na was weighed 2 WO 4 ·2H 2 O was dissolved in 100mL of deionized water, then 0.6mL of H was added 2 O 2 Finally, 10mL of HCl solution is added and stirred uniformly, and then the mixture is at-0.Depositing under a constant voltage of 75V until the total charge reaches 300mC; in the electrodeposition process, ITO conductive glass is used as a working electrode, a platinum wire is used as a counter electrode, and a silver wire is used as a reference electrode;
(3) Preparation of electrochromic device:
fixing a hollow isolation groove with a certain size and thickness on ITO conductive glass deposited with a tungsten oxide film by using 3M double faced adhesive tape, dripping the obtained uniform hydrogel solution into the isolation groove, attaching the ITO conductive glass deposited with a Prussian blue film, and irradiating for 2min under an ultraviolet lamp to solidify the hydrogel to obtain the electrochromic device based on hydroxypropyl methyl cellulose modified polyacrylamide hydrogel.
Example 2
(1) Preparation of hydrogel electrolyte:
0.05g of hydroxypropyl methylcellulose and 40. Mu.L of the photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to 10mL of aqueous potassium chloride solution and stirred until dissolved; 2g of acrylamide and 0.05g of N, N-methylene bisacrylamide are weighed and added into the solution, and stirring is continued for 2 hours, so that a hydrogel solution is obtained after uniform stirring;
(2) The electrode and electrochromic device were prepared in the same manner as in example 1.
Claims (7)
1. A hydroxypropyl methyl cellulose hydrogel electrolyte used in electrochromic devices and a preparation method thereof are characterized in that: comprises 0.075g of hydroxypropyl methylcellulose, 2g of acrylamide, 0.012g of cross-linking agent, 0.74g of potassium chloride, 15 μl of hydrochloric acid, 40 μl of photoinitiator and 10ml of deionized water.
2. The hydroxypropyl methylcellulose hydrogel electrolyte for use in electrochromic devices and the method of making the same according to claim 1, wherein the cross-linking agent is one or a mixture of more than two of N, N-methylenebisacrylamide, polyethylene glycol diacrylate, ethylene glycol dimethacrylate.
3. The hydroxypropyl methylcellulose hydrogel electrolyte for use in electrochromic devices and method of making same according to claim 1, wherein the potassium salt is one or a mixture of more than two of potassium chloride, potassium bromide, potassium fluoride, potassium tetrafluoroborate.
4. The hydroxypropyl methylcellulose hydrogel electrolyte for use in electrochromic devices and method of making same according to claim 1, wherein the photoinitiator is one or a mixture of two or more of 2-hydroxy-2-methyl-1-phenylpropanone, 1-hydroxycyclohexylphenyl ketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-propanone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide.
5. The hydroxypropyl methylcellulose hydrogel electrolyte for use in electrochromic devices and the method for preparing the same according to claim 1, wherein the concentration of the hydrochloric acid is 10-30% by mass.
6. The hydroxypropyl methylcellulose hydrogel electrolyte for use in electrochromic devices and method of making same according to claim 1, comprising the steps of:
(1) Preparation of electrode materials: depositing Prussian blue and tungsten oxide on the ITO conductive glass by using an electrochemical workstation, wherein the Prussian blue and the tungsten oxide are respectively used as an anode and a cathode of the electrochromic device;
(2) Preparation of electrolyte solution: adding hydroxypropyl methyl cellulose into deionized water at room temperature, stirring thoroughly until transparent uniform liquid is formed, then sequentially adding acrylamide, potassium salt, a cross-linking agent and an initiator, and stirring until the solution is clear and transparent;
(3) Assembly of electrochromic device: and (3) enclosing a hollow groove between the electrodes prepared in the step (1) by using 3M double faced adhesive tape, dripping the electrolyte solution prepared in the step (2), irradiating for 1-2 min under an ultraviolet lamp, curing to obtain hydrogel electrolyte, and finally packaging the device to obtain the electrochromic device.
7. The method according to claim 6, wherein the electrode material in the step (1) is prepared by using ITO (indium tin oxide) conductive glass as a working electrode, a platinum wire as a counter electrode, and a silver wire as a reference electrode. The target substance is electrodeposited onto the ITO using an electrochemical workstation applying a voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210915258.9A CN117539096A (en) | 2022-08-01 | 2022-08-01 | Hydroxypropyl methylcellulose hydrogel electrolyte for electrochromic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210915258.9A CN117539096A (en) | 2022-08-01 | 2022-08-01 | Hydroxypropyl methylcellulose hydrogel electrolyte for electrochromic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117539096A true CN117539096A (en) | 2024-02-09 |
Family
ID=89790512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210915258.9A Pending CN117539096A (en) | 2022-08-01 | 2022-08-01 | Hydroxypropyl methylcellulose hydrogel electrolyte for electrochromic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117539096A (en) |
-
2022
- 2022-08-01 CN CN202210915258.9A patent/CN117539096A/en active Pending
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