CN219799949U - Electrochromic glazing - Google Patents
Electrochromic glazing Download PDFInfo
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- CN219799949U CN219799949U CN202320488818.7U CN202320488818U CN219799949U CN 219799949 U CN219799949 U CN 219799949U CN 202320488818 U CN202320488818 U CN 202320488818U CN 219799949 U CN219799949 U CN 219799949U
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- 239000003792 electrolyte Substances 0.000 claims abstract description 75
- 239000011521 glass Substances 0.000 claims abstract description 55
- 230000007704 transition Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 16
- 239000011244 liquid electrolyte Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 143
- 150000002500 ions Chemical class 0.000 description 26
- 230000008859 change Effects 0.000 description 21
- 229910003002 lithium salt Inorganic materials 0.000 description 17
- 159000000002 lithium salts Chemical class 0.000 description 17
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 13
- 239000003960 organic solvent Substances 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 13
- -1 lithium transition metal salt Chemical class 0.000 description 9
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 8
- 229920000915 polyvinyl chloride Polymers 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 239000002033 PVDF binder Substances 0.000 description 7
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
- 229910001416 lithium ion Inorganic materials 0.000 description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 7
- 239000004926 polymethyl methacrylate Substances 0.000 description 7
- 229920006380 polyphenylene oxide Polymers 0.000 description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 7
- 229910013063 LiBF 4 Inorganic materials 0.000 description 6
- 229910013684 LiClO 4 Inorganic materials 0.000 description 6
- 229910013870 LiPF 6 Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 230000005012 migration Effects 0.000 description 6
- 238000013508 migration Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229920002239 polyacrylonitrile Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910052733 gallium Inorganic materials 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 235000014692 zinc oxide Nutrition 0.000 description 4
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical class [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241000227425 Pieris rapae crucivora Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- JYMITAMFTJDTAE-UHFFFAOYSA-N aluminum zinc oxygen(2-) Chemical class [O-2].[Al+3].[Zn+2] JYMITAMFTJDTAE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000379 polypropylene carbonate Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical class [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Abstract
The embodiment of the utility model discloses electrochromic glass, which comprises the following components: the first conductive color changing plate, the second conductive color changing plate and the electrolyte layer. Wherein the electrolyte layer is interposed between the first conductive color-changing plate and the second conductive color-changing plate in a sandwich form. And a first ion transition layer is arranged between the first conductive color changing plate and the electrolyte layer, and a second ion transition layer is arranged between the second conductive color changing plate and the electrolyte layer. The electrochromic glass disclosed by the utility model has the characteristics of long cycle life and high stability.
Description
Technical Field
The utility model relates to the field of glass materials, in particular to electrochromic glass.
Background
Electrochromic (EC) refers to a process in which the transmittance, reflectance or absorptivity of a material in the ultraviolet, visible or (and) near infrared regions changes steadily and reversibly under the action of an applied electric field, and visually represents a phenomenon in which the color and degree of the material change reversibly. The glass structure with electrochromic performance is called electrochromic glass, and the glass structure selectively absorbs or reflects external heat radiation by adjusting light absorption and transmission under the action of an electric field, prevents internal heat from diffusing outwards, and reduces a large amount of energy consumed by cooling in summer and heating in winter of buildings such as office buildings, residential houses and the like. Meanwhile, the effects of improving the natural illumination degree, preventing peeping, preventing glare and the like are also achieved.
Currently, electrochromic products have a number of drawbacks in the process of industrialization of electrochromic glass. According to the use characteristics of the building glass, the charged ions of the electrolyte layer are driven by voltage to be injected and extracted for at least tens of thousands of times so as to change color, and the charged ions of the electrochromic glass in the prior art have the defects of long color changing response time and poor stability due to low migration rate of the charged ions in the repeated injection and extraction processes.
Therefore, designing an electrochromic glass with high migration rate and high stability of charged ions is a problem to be solved urgently.
Disclosure of Invention
The utility model mainly aims at overcoming the defects and shortcomings of the prior art, and provides electrochromic glass which has the characteristics of high migration rate of charged ions and high stability.
Specifically, one embodiment of the present utility model discloses an electrochromic glass comprising:
a first conductive color changing plate;
a second conductive color-changing plate;
an electrolyte layer interposed between the first conductive color-changing plate and the second conductive color-changing plate;
and a first ion transition layer is arranged between the first conductive color changing plate and the electrolyte layer, and a second ion transition layer is arranged between the second conductive color changing plate and the electrolyte layer.
In one embodiment of the present utility model, the first conductive color-changing plate includes: a first substrate, and a first conductive layer and a first color-changing layer sequentially stacked on the first substrate; and
the second conductive color-changing plate includes: the second substrate, and the second conducting layer and the second color-changing layer that stack in proper order on the second substrate.
In one embodiment of the utility model, the thicknesses of the first substrate, the first conductive layer, the first color shifting layer, the second conductive layer, the second substrate, and the electrolyte layer are at least partially the same.
In one embodiment of the present utility model, the thicknesses of the first substrate, the first conductive layer, the first color-changing layer, the second conductive layer, the second substrate, and the electrolyte layer are all different.
In one embodiment of the present utility model, the first ion transition layer is an intermediate layer obtained by performing a chemical reaction between the first color-changing layer and the electrolyte layer; and
the second ion transition layer is another intermediate layer obtained by carrying out chemical reaction on the second color-changing layer and the electrolyte layer.
In one embodiment of the present utility model, the electrolyte layer is a liquid electrolyte, and the material of the electrolyte layer includes: lithium salt, organic solvent and polymer;
wherein the lithium salt is LiAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following;
wherein the organic solvent is one or more of PC, EC, DEC, DMC, EMC;
wherein the polymer is one or more of PEO, PAN, PPO, PVDF, PMMA and PVC.
In one embodiment of the present utility model, the electrochromic glazing further comprises: a frame;
the first conductive color changing plate, the second conductive color changing plate and the frame form a containing cavity to contain the injected liquid electrolyte as the electrolyte layer.
In one embodiment of the present utility model, the electrolyte layer is a solid electrolyte, and the material of the electrolyte layer includes: lithium salt, organic solvent, polymer and curing agent;
wherein the lithium salt is LiAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following;
wherein the organic solvent is one or more of PC, EC, DEC, DMC, EMC;
wherein the polymer is one or more of PEO, PAN, PPO, PVDF, PMMA and PVC;
wherein the curing agent is an ultraviolet curing agent.
In one embodiment of the utility model, the electrolyte layer is a colloidal electrolyte and the material of the electrolyte layer comprises: lithium salt, organic solvent, polymer and curing agent;
wherein the lithium salt is LiAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following;
wherein the organic solvent is one or more of PC, EC, DEC, DMC, EMC;
wherein the polymer is one or more of PEO, PAN, PPO, PVDF, PMMA and PVC;
wherein the curing agent is an ultraviolet curing agent.
In one embodiment of the present utility model, the material of the electrolyte layer further includes: and insulating spacers to uniformly space the first conductive color changing plate and the second conductive color changing plate.
The technical scheme has the following advantages or beneficial effects:
in summary, the electrochromic glass disclosed by the utility model has good ion conductivity, and the first transition layer and the second transition layer can promote ion movement of lithium ions under the action of an electric field so as to improve the migration rate of the lithium ions, thereby improving the response speed of the electrochromic glass. Under the drive of voltage, lithium ions in the electrochromic glass can be periodically injected and extracted, and no larger attenuation occurs in the process of periodic injection and extraction, and meanwhile, the electrolyte has the characteristic of high stability. In addition, the electrochromic glass disclosed by the utility model can also control the state of glass cyclic color change according to the magnitude and polarity of external voltage, so that the multi-stage variable color, variable transmittance and variable reflectivity color change effect is achieved, the voltage of a color change driving power supply is below 5V, the safety performance is high, the color residence time is long after color change is finished, constant power supply is not needed, and the energy is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an electrochromic glazing according to an embodiment of the present utility model;
FIG. 2 is a schematic view of another electrochromic glazing according to an embodiment of the utility model;
FIG. 3 is a schematic structural view of the electrochromic glass disclosed in FIG. 2, corresponding to one specific example;
FIG. 4 is a schematic structural view corresponding to another specific example of the electrochromic glass disclosed in FIG. 2;
fig. 5 is a schematic structural diagram corresponding to another specific example of the electrochromic glass disclosed in fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully by reference to the accompanying drawings and specific embodiments, in which it is shown, however, only some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, an electrochromic glazing 100 of the present disclosure, for example, comprises: a first conductive color-changing plate 110, a second conductive color-changing plate 120, and an electrolyte layer 130.
Wherein the mentioned electrolyte layer 130 is provided between the first conductive color-changing plate 110 and the second conductive color-changing plate 120 in a sandwich form.
Wherein, a first ion transition layer 140 is disposed between the first conductive color changing plate 110 and the electrolyte layer 130, and a second ion transition layer 150 is disposed between the second conductive color changing plate 120 and the electrolyte layer 130.
The first ion transition layer 140 and the second ion transition layer 150 formed above can promote ion movement of ions of the electrolyte layer 130 under the action of an electric field to increase the ion migration rate, thereby increasing the response speed of the electrochromic glass 100 to change color.
Specifically, as shown in fig. 2, the first conductive color-changing plate 110 includes, for example: a first substrate 111, a first conductive layer 112 and a first color change layer 113 sequentially stacked on the first substrate 111. The second conductive color-changing plate 120 includes: a second substrate 121, a second conductive layer 122 and a second color change layer 123 sequentially stacked on the second substrate 121.
Specifically, the first ion-transition layer 140 is an intermediate layer obtained by chemically reacting the first color-changing layer 113 and the electrolyte layer 130, and the intermediate layer referred to herein may be understood as a layer structure located between the first color-changing layer 113 and the electrolyte layer 130. The second ion-transition layer 150 is another intermediate layer obtained by chemically reacting the second color-changing layer 123 and the electrolyte layer 130, and the other intermediate layer mentioned herein may be understood as a layer structure located between the second color-changing layer 123 and the electrolyte layer 130. The material of the first ion-transition layer 140, which is an intermediate layer, is, for example, a lithium transition metal salt obtained by heating one or a combination of at least two of the oxides of W, mo, nb, ti, ta in the first color-changing layer 113 and the lithium salt in the electrolyte layer 130. The material of the other intermediate layer, i.e., the second ion transition layer 150, mentioned is, for example, a lithium transition metal acid salt obtained by combining one or a combination of at least two of the oxides of Ni, V, co, ir, fe, mn in the second color-changing layer 123 with a lithium salt in the electrolyte layer 130 under heating.
Specifically, the first substrate 111 and the second substrate 121 are, for example, a common white glass. Of course, the present utility model is not limited thereto, and the first substrate 111 and the second substrate 121 may be, for example, substrates made of colored glass (e.g., gray glass, green glass, lake blue glass, etc.), acrylic plate, PET (Polyethylene terephthalate ) film material, or the like. The thicknesses of the first substrate and the second substrate are the same, for example, greater than 0.02mm and less than or equal to 25mm, but the present embodiment is not limited thereto, and the thicknesses of the first substrate 111 and the second substrate 121 may be different, for example, a first value of greater than 0.02mm and less than or equal to 25mm, and a second value of greater than 0.02mm and less than or equal to 25mm, which is different from the first value, for the thickness of the first substrate 111.
Further, the mentioned first conductive layer 112 and the mentioned second conductive layer 122 are, for example, one or more of a semiconductor oxide, a metal, and an organic conductive polymer. Among them, the mentioned semiconductor Oxides are for example one or more of ITO (Indium Tin Oxides, indium Tin oxide), FTO (F-doped Tin Oxides, fluorine doped Tin oxide), IGZO (Indium Gallium Zinc Oxides, indium gallium zinc oxide), AZO (Aluminum Zinc Oxides, aluminum zinc oxide), GZO (Gallium Zinc Oxides, gallium zinc oxide), TCO (Transparent Conductive Oxide, conductive oxide), the mentioned metals are for example one or more of Ag, au, cu, al, and the mentioned organic conductive polymers are for example one or more of polyacetylene, polypyrrole, polyaniline, polythiophene. The thicknesses of the first conductive layer 112 and the second conductive layer 122 are the same, for example, greater than 30nm and less than or equal to 300nm, although the embodiment is not limited thereto, and the thicknesses of the first conductive layer 112 and the second conductive layer 122 may be different, for example, the thickness of the first conductive layer 112 is a first value of greater than 30nm and less than or equal to 300nm, and the thickness of the second conductive layer 122 is a second value of greater than 30nm and less than or equal to 300 nm.
Further, the mentioned first color-changing layer 113 includes, for example: w, mo, nb, ti, ta, i.e. WO 3 、WMoO X 、WNoO X ，WMoTiO X 、WNbTaO X Etc., wherein x represents the oxygen element's stoichiometric value. The stoichiometric ratio of the oxide may be either oxygen sufficient or oxygen insufficient. The second color-changing layer 123 mentioned includes, for example: ni, V, co, ir, fe, mn, i.e. NiVO X 、NiCoO X 、NiIrO X 、NiFeO X Or a combination of three or even more. Wherein x represents the oxygen element metering value. The stoichiometric ratio of the oxide may be either oxygen sufficient or oxygen insufficient.
The first color-changing layer 113 is, for example, a solar spectrum adjusting functional layer, and the second color-changing layer 123 is, for example, an auxiliary color-changing functional layer. The thicknesses of the first color-changing layer 113 and the second color-changing layer 123 are the same, for example, greater than 30nm and less than or equal to 500nm, although the embodiment is not limited thereto, and the thicknesses of the first color-changing layer 113 and the second color-changing layer 123 may be different, for example, the thickness of the first color-changing layer 113 is a first value of greater than 30nm and less than or equal to 500nm, and the thickness of the second color-changing layer 123 is a second value of greater than 30nm and less than or equal to 500 nm.
Further, the electrolyte layer 130 in the electrochromic glass 100 disclosed in this embodiment may have different forms, and the electrochromic glass 100 including the electrolyte layer 130 having different forms is exemplified below.
Example 1
As shown in fig. 3, electrochromic glass 100 includes, for example: the first substrate 111, the first conductive layer 112, the first color change layer 113, the first ion transition layer 140, the electrolyte layer 130, the second ion transition layer 150, the second color change layer 123, the second conductive layer 122, and the second substrate 121.
The first conductive layer 112 and the first color-changing layer 113 are sequentially stacked on the first substrate 111, and form a first conductive color-changing plate 110 with the first substrate 111. The second conductive layer 122 and the second color-changing layer 123 are sequentially stacked on the second substrate 121, and form a second conductive color-changing plate 120 with the second substrate 121. The electrolyte layer 130 is sandwiched between the first conductive color-changing plate 110 and the second conductive color-changing plate 120.
Wherein the first ion-transition layer 140 is a layer structure between the first color-changing layer 113 and the electrolyte layer 130. The second ion-transition layer 150 is a layer structure located between the second color-changing layer 123 and the electrolyte layer 130.
Further, the electrolyte layer 130 is mentioned as a liquid electrolyte, and the materials of the electrolyte layer 130 include, for example: lithium salts, organic solvents, and polymers. The thickness of the electrolyte layer 130 is, for example, greater than 10nm and less than or equal to 100nm.
In particular, the lithium salts mentioned are, for example, liAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following. The organic solvents mentioned are, for example, PC (Polypropylene carb)onate, polypropylene Carbonate), EC (Ethyl Carbonate), DEC (Diethyl Carbonate ), DMC (Dimethyl Carbonate, dimethyl Carbonate), EMC (Ethyl Methyl Carbonate, methylethyl Carbonate). Examples of polymers mentioned are one or more of PEO (Polyethylene Oxide ), PAN (polyandine, polyaniline), PPO (Polyphenylene Oxide ), PVDF (Poly (ethylene oxide), polyvinylidene fluoride), PMMA (Polymethyl Methacrylate ) and PVC (Polyvinyl Chloride, polyvinyl chloride).
Further, the electrochromic glass 100 mentioned further includes, for example: and a bezel 160. The frame 160 is, for example, a rectangular aluminum frame surrounding the electrochromic glass, and of course, the shape and material of the frame 160 are not limited in the present utility model, and the frame can be designed according to practical requirements. Wherein the first conductive color-changing plate 110, the second conductive color-changing plate 120, and the frame 160 form a receiving cavity to receive the injected liquid electrolyte as the electrolyte layer 130. Specifically, after the first conductive color-changing plate 110, the second conductive color-changing plate 120 and the frame 160 are fully attached, a rectangular hollow portion formed between the first conductive color-changing plate 110 and the second conductive color-changing plate 120 is isolated from the outside, and the rectangular hollow portion is a receiving cavity. And then the prepared liquid electrolyte is injected into the accommodating cavity to form the complete electrochromic glass.
Further, a first ion-transition layer 140 is provided between the first color-changing layer 113 and the electrolyte layer 130, and a second ion-transition layer 150 is provided between the second color-changing layer 123 and the electrolyte layer 130.
Specifically, the first ion transition layer 140 mentioned includes, for example: a lithium transition metal acid salt formed by a combination of one or at least two of a lithium salt in the electrolyte layer 130 and an oxide of W, mo, nb, ti, ta in the first color-changing layer 113. The mentioned second ion transition layer 150 includes, for example: a lithium transition metal acid salt formed by one or a combination of at least two of a lithium salt in the electrolyte layer 130 and an oxide of Ni, V, co, ir, fe, mn in the second color-changing layer 123.
The liquid electrolyte formed by mixing lithium salt, polymer and organic solvent is used as the electrolyte layer, so that the higher ion mobility and the chemical stability and thermal stability of the electrolyte are ensured. And the liquid electrolyte is used as the electrolyte layer, so that the production process is simple, no additional curing agent is needed, and the production cost is reduced.
Example 2
As shown in fig. 4, an electrochromic glass is provided in example 2, which is substantially the same as the above-described example 1, except that the mentioned electrolyte layer 130 is a solid electrolyte, and the materials of the electrolyte layer 130 include, for example: lithium salt, organic solvent, polymer, curing agent and insulating spacer.
In particular, the lithium salts mentioned are, for example, liAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following. The organic solvent mentioned is, for example, one or more of PC, EC, DEC, DMC, EMC. Polymers mentioned are, for example, one or more of PEO, PAN, PPO, PVDF, PMMA and PVC. The curing agents mentioned are, for example, ultraviolet curing agents.
The insulating spacers are added to the electrolyte layer 130, and the insulating spacers are made of insulating materials in the prior art, such as porcelain, insulating and pressing materials, and can play a role of supporting and spacing between the first conductive color changing plate 110 and the second conductive color changing plate 120, so that the first conductive color changing plate 110 and the second conductive color changing plate 120 can be uniformly spaced.
The solid electrolyte is adopted as the electrolyte layer 130, so that the electrochromic glass assembling process is simplified, the industrialization of the electrochromic glass is further promoted, and the processing feasibility and the product stability are improved.
Example 3
As shown in fig. 5, example 3 provides an electrochromic glass substantially the same as examples 1 and 2 described above, except that the electrolyte layer 130 is a colloidal electrolyte, and the materials of the electrolyte layer 130 include, for example: lithium salt, organic solvent, polymer, curing agent and insulating spacer.
In particular, the lithium salts mentioned are, for example, liAsF 6 、LiPF 6 、LiBF 4 、CF 3 SO 3 Li and LiClO 4 One or more of the following. The organic solvent mentioned is, for example, one or more of PC, EC, DEC, DMC, EMC. Polymers mentioned are, for example, one or more of PEO, PAN, PPO, PVDF, PMMA and PVC. The curing agents mentioned are, for example, ultraviolet curing agents. An insulating spacer is added to the electrolyte layer, and the insulating spacer is, for example, an insulating material in the prior art, which is not described herein again, so that the first conductive color-changing plate 110 and the second conductive color-changing plate 120 are uniformly spaced.
By adopting the film structure of the electrolyte layer 130 formed by the gel electrolyte, the uniformity and stability of the electrochromic glass for color change are further improved.
It should be noted that the electrochromic glass disclosed in the foregoing embodiment of the present utility model has the following color change implementation principle: after the power is turned on, lithium ions in the electrolyte layer of the color-changing glass migrate under the driving action of an electric field, so that the color-changing layer performs a cyclic reaction from oxidation to reduction to oxidation, and the color change is realized. The color before and after the color change may be, for example: the color change is a change of various colors such as colorless-light blue-dark blue, colorless-light blue green-dark blue, light green-dark blue, yellow green-dark blue, light yellow-cyan, green-dark brown, gray-green-yellow, and the like.
In summary, the electrochromic glass disclosed by the embodiment of the utility model has good ion conductivity, and the first transition layer and the second transition layer can promote the ion movement of lithium ions under the action of an electric field so as to improve the migration rate of the lithium ions, thereby improving the response speed of the electrochromic glass. Under the drive of voltage, lithium ions in the electrochromic glass can be periodically injected and extracted, and no larger attenuation occurs in the process of periodic injection and extraction, and meanwhile, the electrolyte has the characteristic of high stability. In addition, the electrochromic glass disclosed by the utility model can also control the state of glass cyclic color change according to the magnitude and polarity of external voltage, so that the multi-stage variable color, variable transmittance and variable reflectivity color change effect is achieved, the voltage of a color change driving power supply is below 5V, the safety performance is high, the color residence time is long after color change is finished, constant power supply is not needed, and the energy is saved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. An electrochromic glazing comprising:
a first conductive color changing plate;
a second conductive color-changing plate;
an electrolyte layer interposed between the first conductive color-changing plate and the second conductive color-changing plate;
and a first ion transition layer is arranged between the first conductive color changing plate and the electrolyte layer, and a second ion transition layer is arranged between the second conductive color changing plate and the electrolyte layer.
2. The electrochromic glass of claim 1, wherein the first electrically conductive color-changing plate comprises: a first substrate, and a first conductive layer and a first color-changing layer sequentially stacked on the first substrate; and
the second conductive color-changing plate includes: the second substrate, and the second conducting layer and the second color-changing layer that stack in proper order on the second substrate.
3. The electrochromic glass of claim 2, wherein the thicknesses of the first substrate, the first conductive layer, the first color-changing layer, the second conductive layer, the second substrate, and the electrolyte layer are at least partially the same.
4. The electrochromic glass of claim 2, wherein the first substrate, the first conductive layer, the first color-changing layer, the second conductive layer, the second substrate, and the electrolyte layer are all different in thickness.
5. The electrochromic glass of claim 2, wherein the first ion transition layer is an intermediate layer obtained by a chemical reaction between the first color-changing layer and the electrolyte layer; and
the second ion transition layer is another intermediate layer obtained by carrying out chemical reaction on the second color-changing layer and the electrolyte layer.
6. The electrochromic glass of claim 1, wherein the electrolyte layer is a liquid electrolyte.
7. The electrochromic glass of claim 6, wherein the electrochromic glass further comprises: a frame;
the first conductive color changing plate, the second conductive color changing plate and the frame form a containing cavity to contain the injected liquid electrolyte as the electrolyte layer.
8. The electrochromic glass of claim 1, wherein the electrolyte layer is a solid state electrolyte.
9. The electrochromic glass of claim 1, wherein the electrolyte layer is a colloidal electrolyte.
10. The electrochromic glass according to claim 8 or 9, wherein the material of the electrolyte layer further comprises: and insulating spacers to uniformly space the first conductive color changing plate and the second conductive color changing plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320488818.7U CN219799949U (en) | 2023-03-07 | 2023-03-07 | Electrochromic glazing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320488818.7U CN219799949U (en) | 2023-03-07 | 2023-03-07 | Electrochromic glazing |
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| CN219799949U true CN219799949U (en) | 2023-10-03 |
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