KR20170050311A - Polymer electrolyte composition and all-solid-state electrochromic device - Google Patents
Polymer electrolyte composition and all-solid-state electrochromic device Download PDFInfo
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- KR20170050311A KR20170050311A KR1020150151697A KR20150151697A KR20170050311A KR 20170050311 A KR20170050311 A KR 20170050311A KR 1020150151697 A KR1020150151697 A KR 1020150151697A KR 20150151697 A KR20150151697 A KR 20150151697A KR 20170050311 A KR20170050311 A KR 20170050311A
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- G02F2001/13775—
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- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
Abstract
TECHNICAL FIELD The present invention relates to a polymer electrolyte composition and a high-voltage electrochromic device using the polymer electrolyte composition. The polymer electrolyte composition according to one embodiment of the present application comprises a lithium salt; menstruum; At least one oligomer selected from polypropylene glycol oligomers, polyethylene glycol oligomers and aniline oligomers; And radical initiators.
Description
TECHNICAL FIELD The present invention relates to a polymer electrolyte composition and a high-voltage electrochromic device using the polymer electrolyte composition.
Elctrochromism refers to the property that the color of a substance reversibly changes as the electron density changes with the insertion or desorption of cations in the electrode structure due to an electrochemical oxidation / reduction reaction caused by a change in applied voltage.
Transition metal oxides such as WO 3 , V 2 O 5 , TiO 2 and NiO exhibit hybrid conduction characteristics capable of conducting ions and electrons. When a specific potential is applied to the interface between the thin film electrode of the transition metal oxide and the electrolyte in the electrolyte, atoms such as H + , Na + or Li + are charged or discharged. In this case, since it involves a coloring-decoloring process during charging and discharging processes, much research has been conducted as an electrode material for an electrochemical coloring device. Such a display device using an electrochromic phenomenon is expected to be used in a special glass or mirror-shaped electrochemical coloring display device such as a curtainless window, etc., since a desired light transmittance can be obtained by changing the application potential from the outside.
In the art, there is a demand for development of an electrochromic device having a simple and high-performance manufacturing process and a manufacturing method thereof.
In one embodiment of the present application,
Lithium salts;
menstruum;
At least one oligomer selected from polypropylene glycol oligomers, polyethylene glycol oligomers and aniline oligomers; And
A radical initiator
And a polymer electrolyte.
Further, another embodiment of the present application,
Forming a first electrode on a first substrate and then forming an electrochromic layer on the first electrode;
Forming an ion storage layer on the second electrode after forming a second electrode on the second substrate; And
Forming a gel polymer electrolyte layer between the electrochromic layer and the ion storage layer using the polymer electrolyte composition
Type electrochromic device, comprising the steps of:
Further, another embodiment of the present application provides a height-type electrochromic device which is manufactured from the above-described method for producing an electrochromic device.
A full-length electrochromic device according to an embodiment of the present application includes a lithium salt; menstruum; At least one oligomer selected from polypropylene glycol oligomers, polyethylene glycol oligomers and aniline oligomers; And a gel polymer electrolyte layer formed from a polymer electrolyte composition comprising a radical initiator, so that it is very easy to carry out a roll-to-roll large-area mass production process of the electrochromic device.
In addition, the gel polymer electrolyte layer not only has excellent ion conductivity, but also has high transparency and low haze, thereby realizing excellent performance of the electrochromic device as a transparent solid electrolyte.
According to one embodiment of the present application, the polypropylene glycol oligomer, the polyethylene glycol oligomer or the aniline oligomer is excellent in compatibility with a solvent and can facilitate the movement of the lithium salt. In addition, it is possible to improve the coating viscosity and the coating property in the roll-to-roll process by controlling the molecular weight of the oligomer, and to provide not only a gel polymer film but also easy cutting property.
Fig. 1 schematically shows the structure of an electrochromic device as one embodiment of the present application. Fig.
DESCRIPTION OF THE REFERENCE NUMERALS
10: first substrate
11: first electrode
12: Electrochromic layer
3: gel polymer electrolyte layer
22: ion storage layer
21: Second electrode
20: second substrate
The present application will be described in more detail below.
When the electrochromic device is to be fabricated in a large area, there is a problem in that the conventional liquid electrolyte has an electrolyte that is attracted downward by gravity. Further, in the case where the substrate of the electrochromic device is a polymer film, it is very difficult to maintain the liquid electrolyte uniformly between the two films.
Recently, a technique of applying a solid polymer electrolyte instead of a liquid electrolyte to an electrochromic device has been proposed. However, the solid polymer electrolyte has a lower ionic conductivity than a liquid electrolyte and can not sufficiently realize electrochromic performance.
The solid polymer electrolyte suitable for the electrochromic device should have a high ionic conductivity, a high transmittance and a low haze, and the applied solid polymer should be electrochemically stable so that no decomposition occurs in the driving voltage range of the device.
Accordingly, the present application aims to provide an electrochromic device including a gel polymer electrolyte layer which can improve the productivity of a large-area electrochromic device, and which has excellent characteristics, and a method for producing the same.
The polymer electrolyte composition according to one embodiment of the present application comprises a lithium salt; menstruum; At least one oligomer selected from the group consisting of a polypropylene glycol oligomer and a polyethylene glycol oligomer; And radical initiators.
In the present application, the lithium salts are LiF, LiCl, LiBr, LiI, LiClO 4, LiClO 3, LiAsF 6, LiSbF 6, LiAlO 4, LiAlCl 4, LiNO 3, LiN (CN) 2, LiPF 6, Li (CF 3 ) 2 PF 4 , Li (CF 3 ) 3 PF 3 , Li (CF 3 ) 4 PF 2 , Li (CF 3 ) 5 PF, Li (CF 3 ) 6 P, LiSO 3 CF 3 , LiSO 3 C 4 F 9, LiSO 3 (CF 2) 7 CF 3, LiN (SO 2 CF 3) 2, LiOC (CF 3) 2 CF 2 CF 3, LiCO 2 CF 3, LiCO 2 CH 3, LiSCN, LiB (C 2 O 4 ) 2 , LiBF 2 (C 2 O 4 ), LiBF 4 , and the like, but the present invention is not limited thereto.
In the present application, the solvent may be an electrolytic solution serving as a plasticizer. Any solvent known in the art may be used as long as it can dissolve the oligomer and the radical initiator and facilitate the migration of Li ions.
More specifically, the solvent may include a carbonate-based compound, and examples thereof include dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methylpropyl carbonate, ethylpropyl carbonate but are not limited to, ethylpropyl carbonate, methylethyl carbonate, ethyl fluoroethyl carbonate, ethylene carbonate, propylene carbonate, fluoroethylene carbonate, and butylene carbonate butylenes carbonate, etc., and may include, but is not limited to, propylene carbonate.
In the present application, the oligomer should be able to transfer Li ions well, and oligomers having non-covalent electron pairs such as -O, -N, etc. in the molecule can be used.
The oligomer may comprise at least one oligomer of a polypropylene glycol oligomer, a polyethylene glycol oligomer and an aniline oligomer. The oligomer may include a functional group containing a double bond capable of being independently UV-curable at both ends, and the number of the double bonds may be 0 to 3, 3 or more, but is not limited thereto. The functional group containing a double bond may be an acrylate group or a diacrylate group.
The polypropylene glycol oligomer or polyethylene glycol oligomer can be prepared by the reaction of propylene glycol or ethylene glycol with isocyanate.
The weight average molecular weight of the oligomer may be 10,000 to 40,000, but is not limited thereto.
The radical initiator used in the present application is a compound which generates radicals by light to induce crosslinking and is a compound that is selected from the group consisting of an acetophenone compound, a nonimidazole compound, a triazine compound, Can be used.
Examples of the acetophenone compound usable as the radical initiator include 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1- (4-isopropylphenyl) -2- (2-hydroxy-2-propyl) ketone, 1-hydroxycyclohexyl phenyl ketone, benzoin methyl ether, benzoin ethyl ether, benzoin (4-methylthio) phenyl-2-morpholino-1-propan-1-one, 2- Benzyl-2-dimethylamino-1- (4-morpholinophenyl) - butan-1- Butan-1-one and 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropane-
Examples of the nonimidazole-based compounds include 2,2-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'- 4 ', 5,5'-tetrakis (3,4,5-zimethoxyphenyl) -1,2'-biimidazole, 2,2'-bis (2,3-dichlorophenyl) 4 ', 5,5'-tetraphenylbiimidazole, and 2,2'-bis (o-chlorophenyl) -4,4,5,5'-tetraphenyl-1,2'- Group,
Examples of the triazine compound include 3- {4- [2,4-bis (trichloromethyl) -s-triazin-6-yl] phenylthio} propionic acid, 1,1,1,3,3,3- (Trichloromethyl) -s-triazine-6-yl] phenylthio} propionate, ethyl 2- {4- [2,4 Bis (trichloromethyl) -s-triazin-6-yl] phenylthio} acetate, 2- epoxyethyl-2- {4- [ Yl] phenylthio} acetate, benzyl-2- {4- [2- (4-fluorophenyl) (Trichloromethyl) -s-triazine-6-yl] phenylthio} acetate, 3- {chloro-4- [ (Phenylthio) propionic acid, 2,4- bis (trichloromethyl) -s-triazine-6-yl] Methyl) -6- p-methoxystyryl-s-triazine, 2,4-bis (trichloromethyl) -6- (1-p- Aminophenyl) -1,3-butadienyl -s- triazine, and 2-trichloromethyl-4-amino -6-p- methoxy styryl -s- will selected from the group consisting of a triazine,
Examples of the oxime compounds include 1,2-octadione-1- (4-phenylthio) phenyl-2- (o-benzoyloxime) (Ciba Geigy, CGI 124), and ethanone- (CGI 242), oxime OX-03 (Shiba Kagaku), NCI-831 (Adeca), PI-102 (LG Biotechnology Co., Chemical), PBG 304, PBG 305, and PBG 3057 (Tronnis).
The amount of the radical initiator may be 0.1 to 5 parts by weight, and may be 0.1 to 1 part by weight based on 100 parts by weight of the oligomer, but is not limited thereto.
In the present application, the polymer electrolyte composition may further include at least one monomer and additives known in the art. More specifically, the monomer may comprise an acrylic monomer, and may be selected from the group consisting of acrylic acid, isobornyl acrylate, acrylonitrile, ethylene glycol (meth) acrylate, ethylhexyl (meth) acrylate, methyl (Meth) acrylate, tris (2- (meth) acryloyl) isocyanurate, trimethyl (meth) acrylate, (Meth) acrylate, dipentaerythritol di (meth) acrylate, dipentaerythritol tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (Meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol Four (meth) acrylate, and the like, but may include at least one kind, and thus are not limited thereto.
The content of the monomer may be 1 to 30 parts by weight, 1 to 10 parts by weight, and 2 to 5 parts by weight based on 100 parts by weight of the oligomer, but is not limited thereto.
A high-voltage electrochromic device according to the present application includes: forming a first electrode on a first substrate and then forming an electrochromic layer on the first electrode; Forming an ion storage layer on the second electrode after forming a second electrode on the second substrate; And forming a gel polymer electrolyte layer between the electrochromic layer and the ion storage layer using the polymer electrolyte composition.
In the present application, the first substrate, the second substrate, the first electrode, and the second electrode are not particularly limited as long as they are well known in the art. More specifically, examples of the first substrate and the second substrate include a glass substrate and a plastic substrate, but the present invention is not limited thereto. The first electrode and the second electrode may include indium doped tin oxide (ITO), antimony doped tin oxide (ATO), fluorine doped tin oxide (FTO), indium doped zinc oxide (IZO) And may include an oxide-metal-oxide (OMO) or metal mesh electrode as the low-resistance electrode material, but the present invention is not limited thereto.
In the present application, a method for forming the first electrode on the first substrate and a method for forming the second electrode on the second substrate may be those known in the art. For example, the first electrode or the second electrode may be formed on the first substrate or the second substrate by sputtering, electron beam evaporation, chemical vapor deposition, sol-gel coating, or the like. It is not.
In the present application, the electrochromic layer and the ion storage layer may be formed using materials and manufacturing methods known in the art. For example, the electrochromic layer may be formed of an inorganic material such as WO 3 , IrO 2 , Bi 2 O 3 , CoO, MoO 3 , Nb 2 O 5 , TiO 2 and the like; Organic materials such as polyaniline, polypyrrole and the like, but the present invention is not limited thereto. The ion storage layer may be formed of an inorganic material such as LiNiO x (x is 1 to 3), FeO, NiO, RhO 5 , V 2 O 5, and the like; And organic materials such as Prussian blue and the like, but the present invention is not limited thereto.
In the present application, the thickness of the gel polymer electrolyte layer may be 10-1,000 탆, and may be 50-100 탆, but is not limited thereto. If the thickness of the gel polymer electrolyte layer is less than 10 탆, it may be difficult to perform the cutting process in the cutting property and the lamination process. If the thickness is more than 1,000 탆, the time required for the Li ion to move to the color changing element is long, Can be lowered.
In the present application, the modulus of the gel polymer electrolyte layer may be from 10 4 to 10 7 Pa and from 10 5 to 10 7 Pa. When the modulus of the gel polymer electrolyte layer is less than 10 5 Pa, the adhesion reliability is low. When the gel polymer electrolyte layer is more than 10 7 Pa, the ion conductivity may fall, and the adhesion reliability is insufficient.
The forming of the electrolyte layer may include coating a polymer electrolyte composition on a first release film, cementing a second release film and UV curing the electrolyte film to form an electrolyte film; Removing the first release film and transferring the electrolyte film onto the electrochromic layer; And removing the second release film and adhering an ion storage layer on the electrolyte film.
The first release film and the second release film may use materials and methods known in the art.
The forming of the electrolyte layer may include: coating and UV curing the polymer electrolyte composition on the electrochromic layer to form an electrolyte film; And adhering an ion storage layer onto the electrolyte film.
The viscosity of the polymer electrolyte composition may be 10 to 100,000 cps based on 25 ° C, and may be 1,000 to 5,000 cps. If the viscosity of the electrolyte solution is less than 10 cps, the coating processability may deteriorate. If the viscosity exceeds 100,000 cps, the film may be difficult to be coated due to the mixing process and defoaming process.
The opto-disc type electrochromic device according to one embodiment of the present application includes a gel polymer electrolyte layer including a lithium salt, a solvent, an oligomer and a radical initiator, so that the electrochromic device is very easy to mass-produce a roll-to-roll large area of an electrochromic device.
In addition, the gel polymer electrolyte layer not only has excellent ion conductivity, but also has high transparency and low haze, thereby realizing excellent performance of the electrochromic device as a transparent solid electrolyte.
Hereinafter, the present invention will be described in more detail with reference to Examples, Comparative Examples and Experimental Examples. However, the following Examples, Comparative Examples and Experimental Examples are provided for illustrating the present invention, and thus the scope of the present invention is not limited thereto.
< Example >
< Example 1 to 3 and Comparative Example 1 to 2>
The polymer electrolyte compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were prepared using the compositions shown in Table 1 below.
[Table 1]
Total weight of lithium salt and solvent: 100 g (2M concentration)
Weight of oligomer: 100 g
Weight of monomer: 3 g
Weight of photoinitiator: 0.33 g
PC: Propylene carbonate
TMPTA: trimethylolpropane triacrylate
PETA: pentaerythritol triacrylate
PPG base urethane diacrylate: Compound of propylene glycol and isocyanate
The properties of the polymer electrolyte compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were evaluated and shown in Table 2 below.
[Table 2]
Solubility by Hildebrand solubility parameter
Represents the absolute value of the difference between the Hildebrand solubility parameter of the solvent used and (oligomer + monomer). The calculation of the solubility parameter can be calculated from the theoretical values (calculated on the basis of PC = 13.3).
The swelling capacity was measured by the following method. The oligomer, monomer and radical initiator except for the solvent were blended and photocured, and then taken 1 cm x 1 cm and the weight was recorded. 50 ml of the used solvent (PC) was prepared in a closed container, and the prepared sample was immersed in the solution and allowed to stand at room temperature for 1 day. The sample containing the solvent was removed, the solvent on the surface was removed, and the weight was recorded. Swelling capacity = (sample weight after immersion - initial weight) / (initial weight). The larger the value of the swelling capacity, the more excellent the compatibility and the more the solvent can be put.
< Experimental Example >
1) Physical Properties of Polymer Electrolyte Films
The polymer electrolyte compositions of Examples 1 to 3 and Comparative Examples 1 and 2 were applied to a release film to a predetermined thickness and UV cured to prepare a polymer electrolyte film. The properties of the prepared polymer electrolyte film were evaluated and are shown in Table 3 below.
[Table 3]
The transmittance of the polymer electrolyte film was measured based on the wavelength of 550 nm of the UV-Vis spectrum, and haze was measured by using a haze meter as Td / Tt, which means transparency.
To measure the impedance, a GPE sample with a certain width (A) and thickness (t) was prepared (usually formed to a thickness of several hundred micrometers). An SUS substrate having excellent electron conductivity was contacted as an ion blocking electrode on both sides of a plate-shaped sample, and an AC voltage was applied through the electrodes on both sides of the sample. At this time, the applied condition is amplitude, and the measurement frequency is set in the range of 0.1 Hz to 10 MHz. The resistance of the bulk electrolyte was obtained from the intersection (Rb) where the semicircle or straight line of the measured impedance trajectory meets the real axis and the ion conductivity was obtained from the sample width (A) and thickness (t) as shown in the following equation.
The modulus was measured by using a Rheometer (TA ARES62), wetting the sample specimen (1 × 1 cm) on an aluminum plate (8 mm) at room temperature (25 ° C.) The elastic modulus was measured.
The adhesion reliability was evaluated after 30 minutes from lamination of the polymer electrolyte film on a WO 3 substrate.
2) Driving characteristics of electrochromic device
The electrochromic devices were fabricated using the gel polymer electrolyte compositions of Examples 1 to 3 and Comparative Examples 1 and 2, and the characteristics of the electrochromic devices were evaluated.
After an electrochromic layer such as WO 3 and LiNiO 2 was prepared on the ITO film, a polymer electrolyte film cured to a uniform thickness on the release film was laminated on the electrochromic layer, and the electrochromic layers were sandwiched on both sides. After the bus bar electrode was formed on the ITO electrode layer, the device performance was measured according to the applied voltage.
[Table 4]
When a voltage of ± 2 V was applied to a device having a size of 5 cm × 5 cm by switching, the transmittance and time were measured at the time of adherence / decolorization. At this time, the transmittance measurement wavelength band was measured at 550 nm, and the deposition / decolorization time was measured based on the time taken until the rate of change of the amount of current, which varies according to the switching voltage, becomes 80%.
As described above, the inventive high-voltage electrochromic device according to one embodiment of the present application includes a lithium salt; menstruum; At least one oligomer selected from polypropylene glycol oligomers, polyethylene glycol oligomers and aniline oligomers; And a gel polymer electrolyte layer formed from a polymer electrolyte composition comprising a radical initiator, so that it is very easy to carry out a roll-to-roll large-area mass production process of the electrochromic device.
In addition, the gel polymer electrolyte layer not only has excellent ion conductivity, but also has high transparency and low haze, thereby realizing excellent performance of the electrochromic device as a transparent solid electrolyte.
According to one embodiment of the present application, the polypropylene glycol oligomer, the polyethylene glycol oligomer or the aniline oligomer is excellent in compatibility with a solvent and can facilitate the movement of the lithium salt. In addition, it is possible to improve the coating viscosity and the coating property in the roll-to-roll process by controlling the molecular weight of the oligomer, and to provide not only a gel polymer film but also easy cutting property.
Claims (13)
menstruum;
At least one oligomer selected from polypropylene glycol oligomers, polyethylene glycol oligomers and aniline oligomers; And
A radical initiator
And a polymer electrolyte.
Forming an ion storage layer on the second electrode after forming a second electrode on the second substrate; And
Forming a gel polymer electrolyte layer between the electrochromic layer and the ion storage layer using the polymer electrolyte composition according to any one of claims 1 to 6
Type electrochromic device.
Coating a polymeric electrolyte composition on the first release film, cementing and UV curing the second release film to form an electrolyte film;
Removing the first release film, transferring the electrolyte film onto the electrochromic layer, and
Removing the second release film, and cementing an ion storage layer on the electrolyte film
Type electrochromic device. ≪ RTI ID = 0.0 > 8. < / RTI >
Coating a polymer electrolyte composition on the electrochromic layer and UV-curing the electrochromic layer to form an electrolyte film; And
And attaching an ion storage layer on the electrolyte film
Type electrochromic device. ≪ RTI ID = 0.0 > 8. < / RTI >
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190026381A (en) | 2017-09-05 | 2019-03-13 | 주식회사 엘지화학 | An electrolyte composition, an electrolyte film, and an electrochromic device |
| KR20190026382A (en) * | 2017-09-05 | 2019-03-13 | 주식회사 엘지화학 | An electrolyte composition, an electrolyte film, and an electrochromic device |
| CN110286539A (en) * | 2019-06-21 | 2019-09-27 | 深圳市光羿科技有限公司 | A kind of ion storage and preparation method thereof and electrochromic device comprising it |
-
2015
- 2015-10-30 KR KR1020150151697A patent/KR20170050311A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190026381A (en) | 2017-09-05 | 2019-03-13 | 주식회사 엘지화학 | An electrolyte composition, an electrolyte film, and an electrochromic device |
| KR20190026382A (en) * | 2017-09-05 | 2019-03-13 | 주식회사 엘지화학 | An electrolyte composition, an electrolyte film, and an electrochromic device |
| CN110286539A (en) * | 2019-06-21 | 2019-09-27 | 深圳市光羿科技有限公司 | A kind of ion storage and preparation method thereof and electrochromic device comprising it |
| CN110286539B (en) * | 2019-06-21 | 2021-06-29 | 深圳市光羿科技有限公司 | Ion storage layer, preparation method thereof and electrochromic device comprising ion storage layer |
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