Edge-sealed conductive substrate and electrochromic device

Abstract

The present invention relates to an edge-sealed conductive substrate and an electrochromic device. The edge-sealed conductive substrate includes a base layer, a transparent conductive layer, at least one conductive portion, at least one sealing portion, and at least one side lead-out electrode connected to the conductive portion; the transparent conductive layer is stacked on the top surface of the base layer; the conductive portion is connected to the transparent conductive layer; and the sealing portion is connected to the top surface of the transparent conductive layer. The electrochromic device includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence; the color-changing material layer is connected to the transparent conductive layer of the first conductive layer and the second conductive layer, respectively, and the sealing portion of the conductive layer is used to seal the edge of the color-changing material layer. When the edge-sealed conductive substrate provided by the present invention is used to set up an electrochromic device, no additional electrode layout operation is required, the influence of water and oxygen in the air is avoided, and the resulting electrochromic device has a high structural strength.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrochromism, and relates to a conductive substrate, in particular to an edge-sealed conductive substrate and an electrochromic device. Background Art

[0002] Electrochromism refers to the reversible color change of a material under the influence of an electric field. Electrochromism is essentially an electrochemical redox reaction, resulting in a reversible change in the material's appearance. Electrochromic materials are those that change color under the influence of an external electric field and current. Essentially, this is due to changes in the material's chemical structure caused by the electric field, which in turn causes a shift in the material's absorption spectrum.

[0003] Practical electrochromic materials must possess reversible color change, convenient and sensitive color change, controllable color depth, color memory, low driving voltage, polychromaticity, and strong environmental adaptability. Currently, existing electrochromic materials generally possess these properties. These characteristics and advantages have driven the research and development of various electrochromic devices.

[0004] In the prior art, when preparing an electrochromic device, a conductive substrate needs to be used to bond the color-changing material. After bonding, ultraviolet light curing is performed. After curing, the electrochromic device is rolled up or slit for storage. However, the electrochromic device obtained at this time usually does not have the ability to isolate water and oxygen, and is easily affected by water and oxygen in the air, resulting in uneven color change. At the same time, the electrochromic device at this time only relies on the upper and lower surfaces of the color-changing material to bond with the conductive substrate, which is prone to film peeling.

[0005] CN 107922829 A discloses an electrochromic element with an improved electrolyte layer, comprising first and second substrates, a layered working electrode, an electrolyte layer containing mobile metal cations located between the working electrode and the other substrate, and a counter electrode located between the electrolyte material and the conductive coating of the other substrate. This electrochromic element is constructed by stacking various functional layers, making it difficult to avoid film release and the effects of water and oxygen during winding or slitting for storage. Furthermore, the electrode arrangement requires cleaning of the wiring area, which can easily lead to film release and / or bending of the electrochromic device during the cleaning process.

[0006] CN 102830565 A discloses an electrochromic film, an electrochromic device, and a manufacturing method thereof. The electrochromic device includes a first substrate and a second substrate disposed opposite each other, a first transparent conductive layer disposed on the inner side of the first substrate, a second transparent conductive layer disposed on the inner side of the second substrate, and an organic-inorganic electrochromic film disposed between the first and second transparent conductive layers. However, these electrochromic films and devices still suffer from the problem of being easily affected by water and oxygen during winding or slitting processes, and also suffer from defects such as film peeling and bending during wiring.

[0007] Therefore, providing a conductive substrate and an electrochromic device with an edge sealing function is of great significance for improving the production efficiency of electrochromic devices and overcoming the defects of uneven color change, demolding and bending. Summary of the Invention

[0008] The object of the present invention is to provide an edge-sealed conductive substrate and an electrochromic device. The edge-sealed conductive substrate is pre-arranged with side lead-out electrodes, so that the cleaning step of the electrode arrangement area is omitted when the edge-sealed conductive substrate is used to prepare the electrochromic device, thereby reducing the risk of demolding. Moreover, the sealing portion of the edge-sealed conductive substrate of the present invention can not only serve the purpose of encapsulating the color-changing material layer in the electrochromic device, but also improve the structure of the electrochromic device and enhance the bonding strength between the conductive layer and the color-changing material layer in the electrochromic device.

[0009] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0010] In a first aspect, the present invention provides an edge-sealed conductive substrate, the edge-sealed conductive substrate comprising a base layer, a transparent conductive layer, at least one conductive portion, at least one sealing portion, and at least one side extraction electrode connected to the conductive portion;

[0011] The transparent conductive layer is stacked on the top surface of the base layer; the conductive part is connected to the transparent conductive layer; and the sealing part is connected to the top surface of the transparent conductive layer.

[0012] The conductive portion of the present invention is connected to the transparent conductive layer in the following ways: (1) the conductive portion is embedded in the base layer, and the top surface of the conductive portion is connected to the bottom surface of the transparent conductive layer; (2) the bottom of the conductive portion is embedded in the base layer, and the remaining portion is embedded in or extends out of the transparent conductive layer; (3) the conductive portion is completely embedded in the transparent conductive layer; (4) the bottom of the conductive portion is embedded in the transparent conductive layer, and the remaining portion extends out of the transparent conductive layer; (5) the bottom of the conductive portion is connected to the top surface of the transparent conductive layer. The term "extending" means that the top surface of the conductive portion is higher than the top surface of the transparent conductive layer, or that the top surface of the conductive portion is flush with the top surface of the transparent conductive layer.

[0013] The connection method between the conductive portion and the transparent conductive layer of the present invention ensures that there is a contact portion between the conductive portion and the transparent conductive layer, thereby enabling the conductive portion to supply power to the transparent conductive layer. The side lead electrode connected to the conductive portion enables an external power source to supply power to the conductive portion, thereby enabling the external power source to supply power to the transparent conductive layer.

[0014] The sealing portion is connected to the top surface of the transparent conductive layer in the present invention, and the sealing portion is disposed on the top surface of the transparent conductive layer, so that the sealing portion can provide insulation when the edge-sealed conductive substrate is formed into an electrochromic device. Those skilled in the art will be able to reasonably position the sealing portion based on the layout requirements of the electrochromic device.

[0015] As a preferred technical solution, when the conductive portion extends out of the transparent conductive layer, the sealing portion covers the conductive portion.

[0016] When a conductive portion is provided in the edge-sealed conductive substrate of the present invention, a conductive material is placed in the area where the conductive portion is provided. The method of placing the conductive material includes any one of screen printing, pad printing, inkjet printing, metal mesh printing, offset printing, gravure printing, spraying, dispensing, vapor deposition or gluing, or a combination of at least two. Typical but non-limiting combinations include a combination of screen printing and pad printing, a combination of pad printing and inkjet printing, a combination of inkjet printing and metal mesh printing, a combination of metal mesh printing and offset printing, a combination of offset printing and gravure printing, a combination of gravure printing and spraying, a combination of screen printing and dispensing, a combination of screen printing, inkjet printing, metal mesh printing and dispensing, a combination of inkjet printing, metal mesh printing, offset printing, gravure printing and spraying, or a combination of screen printing, pad printing, inkjet printing, metal mesh printing, offset printing, gravure printing, spraying and dispensing.

[0017] The conductive material includes any one or a combination of at least two of conductive silver paste, conductive copper paste, conductive carbon paste, nanosilver conductive ink, copper foil, copper wire or conductive adhesive film; typical but non-limiting combinations include a combination of conductive silver paste and conductive copper paste, a combination of conductive copper paste and conductive carbon paste, a combination of conductive carbon paste and nanosilver conductive ink, a combination of nanosilver conductive ink and conductive adhesive film, a combination of copper foil and copper wire, a combination of conductive silver paste, conductive copper paste and conductive carbon paste, a combination of conductive silver paste, conductive carbon paste and nanosilver conductive ink, a combination of conductive copper paste, conductive carbon paste and conductive adhesive film, or a combination of conductive silver paste, conductive copper paste, conductive carbon paste, nanosilver conductive ink, copper wire, copper foil and conductive adhesive film, preferably conductive silver paste.

[0018] Preferably, before installing the conductive portion, the area where the conductive portion is to be installed is pretreated. The pretreatment method includes any one or more combinations of UVO treatment, corona treatment, or plasma cleaning. Typical but non-limiting combinations include UVO treatment and corona treatment, corona treatment and plasma cleaning, UVO treatment and plasma cleaning, or UVO treatment, corona treatment, and plasma cleaning. The "UVO treatment" described in the present invention is surface treatment using an ultraviolet ozone cleaner. After pretreatment, the conductive portion can be better integrated into the edge-sealed conductive substrate.

[0019] The sealing portion of the present invention may be provided by any one of spraying, dispensing, screen printing, drop coating, scraping, or gluing, or a combination of at least two. Typical but non-limiting combinations include spraying and dispensing, spraying and gluing, gluing and gluing, or spraying, dispensing, and gluing. The sealing portion may be provided by any of conventional pressure-sensitive adhesives, hot melt adhesives, UV-curable adhesives, or thermally curable adhesives that are both insulating and water- and oxygen-isolating.

[0020] Preferably, the material of the side lead-out electrode includes any one or a combination of at least two of conductive silver paste, conductive copper paste, conductive carbon paste, nanosilver conductive ink, copper foil, copper wire or conductive adhesive film; typical but non-limiting combinations include a combination of conductive silver paste and conductive copper paste, a combination of conductive copper paste and conductive carbon paste, a combination of conductive carbon paste and nanosilver conductive ink, a combination of nanosilver conductive ink and conductive adhesive film, a combination of copper foil and copper wire, a combination of conductive silver paste, conductive copper paste and conductive carbon paste, a combination of conductive silver paste, conductive carbon paste and nanosilver conductive ink, a combination of conductive copper paste, conductive carbon paste and conductive adhesive film, or a combination of conductive silver paste, conductive copper paste, conductive carbon paste, nanosilver conductive ink, copper wire, copper foil and conductive adhesive film, preferably conductive silver paste.

[0021] Preferably, the material of the substrate layer includes glass and / or a flexible substrate material.

[0022] The flexible substrate material includes, but is not limited to, any one or a combination of at least two of polyethylene terephthalate (PET), cyclic olefin copolymer, or triacetyl cellulose. Typical but non-limiting combinations include a combination of PET and cyclic olefin copolymer, a combination of cyclic olefin copolymer and triacetyl cellulose, a combination of PET and triacetyl cellulose, or a combination of PET, cyclic olefin copolymer, and triacetyl cellulose.

[0023] Preferably, the thickness of the flexible substrate material is 20-500 μm, for example, it can be 20 μm, 50 μm, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm or 500 μm, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable; when the material of the base layer is glass, there is no excessive limitation on the thickness of the base layer, and those skilled in the art can make a reasonable choice based on actual applications.

[0024] Preferably, the thickness of the transparent conductive layer is 0.1nm-10μm, for example, it can be 0.1nm, 0.5nm, 1nm, 5nm, 10nm, 100nm, 500nm, 1μm, 3μm, 5μm, 7μm or 10μm, but is not limited to the listed values. Other unlisted values ​​within the numerical range are also applicable, and more preferably 0.1nm-1μm.

[0025] The material of the transparent conductive layer of the present invention includes but is not limited to any one or a combination of at least two of indium tin oxide (ITO), aluminum zinc oxide (AZO), fluorine-doped tin oxide (FTO), nanosilver wires, graphene, carbon nanotubes, metal grids or silver nanoparticles; typical but non-limiting combinations include the combination of ITO and ZAO, the combination of AZO and FTO, the combination of nanosilver wires and graphene, the combination of graphene and carbon nanotubes, the combination of carbon nanotubes and metal grids, the combination of metal grids and silver nanoparticles, the combination of nanosilver wires and silver nanoparticles, the combination of ITO, AZO and nanosilver wires, the combination of nanosilver wires, graphene and carbon nanotubes, the combination of graphene, carbon nanotubes, metal grids and silver nanoparticles, or the combination of ITO, AZO, FTO, nanosilver wires, graphene, carbon nanotubes, metal grids and silver nanoparticles.

[0026] Preferably, the conductive portion includes a conductive portion of a regular shape and / or a conductive portion of an irregular shape. In order to facilitate setting the conductive portion, the conductive portion of the present invention is further preferably a conductive portion of a regular shape with equal width.

[0027] Preferably, the width of the conductive portion is 0.02-100 mm, for example, 0.02 mm, 0.1 mm, 0.2 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm or 100 mm, but is not limited to the values ​​listed, and other values ​​not listed within the numerical range are also applicable; the thickness is 0.05-500 μm, for example, 0.05 μm , 0.1μm, 0.5μm, 1μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm, 150μm, 160μm, 170μm, 180μm, 190μm, 200μm, 250μm, 300μm, 350μm, 400μm, 450μm or 500μm, but are not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable, preferably 0.05-200μm.

[0028] Preferably, the thickness of the sealing portion is 1 μm-2 mm, for example, 1 μm, 10 μm, 100 μm, 500 μm, 1 mm, 1.5 mm or 2 mm, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0029] The thickness of the sealing portion in the present invention refers to the height of the top surface of the sealing portion above the top surface of the transparent conductive layer.

[0030] Preferably, the side lead electrode arrangement method of the present invention includes: one end of the side lead electrode is connected to the conductive portion, and the other end does not extend beyond the edge of the edge-sealed conductive substrate; or, one end of the side lead electrode is connected to the conductive portion, and the other end extends beyond the edge of the edge-sealed conductive substrate; or, one end of the side lead electrode is connected to the conductive portion, and the other end is folded over to the bottom surface of the base layer. The term "does not extend" means that the other end of the side lead electrode is flush with the edge of the edge-sealed conductive substrate, or that the other end of the side lead electrode is slightly retracted from the edge of the edge-sealed conductive substrate.

[0031] Preferably, the edge-sealed conductive substrate further comprises a release film layer covering the top surface of the sealing portion.

[0032] The provision of the release film layer of the present invention can facilitate the storage and transportation of the edge-sealed conductive substrate. When the edge-sealed conductive substrate is used to prepare an electrochromic device, only the release film layer needs to be peeled off.

[0033] Preferably, the edge-sealed conductive substrate is further provided with at least one edge notch penetrating through the base layer and the transparent conductive layer.

[0034] The edge notches of the present invention facilitate the placement and / or external connection of side lead electrodes when the edge-sealed conductive substrate is formed into an electrochromic device. Those skilled in the art will be able to appropriately position the edge notches of the edge-sealed conductive substrate in accordance with the positions of the side lead electrodes of the edge-sealed conductive substrate.

[0035] In a second aspect, the present invention provides an electrochromic device, characterized in that the electrochromic device comprises a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence; the first conductive layer and the second conductive layer are the edge-sealed conductive substrate as described in the first aspect;

[0036] The transparent conductive layer of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer of the second conductive layer is connected to the bottom surface of the color-changing material layer;

[0037] The sealing portion of the first conductive layer covers at least one side surface of the color-changing material layer, and the sealing portion of the second conductive layer covers at least one side surface of the color-changing material layer.

[0038] Preferably, the first conductive layer is provided with an edge notch corresponding to the side lead-out electrode of the second conductive layer; and / or the second conductive layer is provided with an edge notch corresponding to the side lead-out electrode of the first conductive layer.

[0039] The electrochromic device provided by the present invention uses a conductive layer provided with an edge notch, so that the side lead-out electrode on the conductive layer matched therewith can be more easily connected to an external circuit.

[0040] The color-changing material layer in the electrochromic device provided by the present invention includes an electrochromic layer and, optionally, an electrolyte layer and an ion storage layer. The color-changing material layer in the electrochromic device of the present invention is disposed between a first conductive layer and a second conductive layer. The sealing portion of the first conductive layer and the sealing portion of the second conductive layer are used to seal the edge of the color-changing material layer, thereby reducing or isolating the effect of water and oxygen in the air on the color-changing material layer in the electrochromic device, thereby preventing uneven color change in the prepared electrochromic device.

[0041] Moreover, the present invention utilizes the sealing portion of the first conductive layer and the sealing portion of the second conductive layer to perform edge sealing on the color-changing material layer, and also utilizes the improvement of the edge-sealed conductive substrate structure of the sealing portion, so that the first conductive layer, the second conductive layer and the color-changing material layer are more tightly combined, thereby making the resulting electrochromic device less likely to experience film peeling.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] (1) The edge-sealed conductive substrate provided by the present invention has a simple structure. The provision of side lead electrodes avoids the electrode arrangement operation after forming the electrochromic device, overcomes the defects of film stripping and deflection caused by the electrode arrangement operation, and also reduces the use of organic solvents.

[0044] (2) The edge-sealed conductive substrate provided by the present invention is used to prepare an electrochromic device, so that the sealing portion of the edge-sealed conductive substrate can play a role in sealing the edge of the color-changing material layer, thereby reducing or isolating the influence of water and oxygen in the air on the color-changing material layer, thereby ensuring uniform color change of the electrochromic device;

[0045] (3) The arrangement of the sealing portion of the edge-sealed conductive substrate provided by the present invention allows the electrochromic device to be prepared in a roll-to-roll manner when the base layer is a flexible base, and the prepared long strip electrochromic device is rolled up for standby use. Due to the arrangement of the sealing portion in the length direction and / or the width direction, the influence of water and oxygen on the color-changing material layer is greatly reduced, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air;

[0046] (4) The edge-sealed conductive substrate provided by the present invention is used to prepare an electrochromic device, and the sealing portion can be used to enhance the structural strength of the obtained electrochromic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A side view of an edge-sealed conductive substrate provided in Example 1;

[0048] Figure 2 A top view of the edge-sealed conductive substrate provided in Example 1;

[0049] Figure 3 A side view of the electrochromic device provided in Example 1;

[0050] Figure 4 A side view of an edge-sealed conductive substrate provided for Example 2;

[0051] Figure 5 A top view of an edge-sealed conductive substrate provided in Example 3;

[0052] Figure 6 A side view of an edge-sealed conductive substrate provided for Example 3;

[0053] Figure 7 A side view of an edge-sealed conductive substrate provided for Example 4;

[0054] Figure 8 A top view of an edge-sealed conductive substrate provided in Example 4;

[0055] Figure 9A side view of the electrochromic device provided in Example 4;

[0056] Figure 10 A top view of an edge-sealed conductive substrate provided in Example 5;

[0057] Figure 11 A side view of the electrochromic device provided in Example 5;

[0058] Figure 12 A side view of an edge-sealed conductive substrate provided for Example 6;

[0059] Figure 13 A side view of the electrochromic device provided in Example 6;

[0060] Figure 14 A side view of an edge-sealed conductive substrate provided for Example 7;

[0061] Figure 15 A side view of the electrochromic device provided in Example 7;

[0062] Figure 16 A side view of an edge-sealed conductive substrate provided for Example 8;

[0063] Figure 17 A top view of the first conductive layer provided in Example 8;

[0064] Figure 18 A top view of the second conductive layer provided in Example 8;

[0065] Figure 19 A side view of the electrochromic device provided for Example 8.

[0066] Among them: 1, base layer; 2, transparent conductive layer; 3, conductive part; 4, sealing part; 5, side lead electrode; 6, release film layer; 7, edge notch. DETAILED DESCRIPTION

[0067] The technical solution of the present invention is further described below by way of specific embodiments. It should be understood by those skilled in the art that the embodiments are merely to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0068] Example 1

[0069] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0070] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 1 As shown, the top view of the first conductive layer and the second conductive layer is as shown Figure 2 shown.

[0071] The first conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3, a sealing portion 4, and a side extraction electrode 5 connected to the conductive portion 3. The transparent conductive layer 2 is laminated on top of the base layer 1, with the bottom of the conductive portion 3 connected to the top of the transparent conductive layer 2. The sealing portion 4 is connected to the top of the transparent conductive layer 2 and covers the conductive portion 3. One end of the side extraction electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate.

[0072] The second conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3, a sealing portion 4, and a side extraction electrode 5 connected to the conductive portion 3. The transparent conductive layer 2 is laminated on top of the base layer 1, with the bottom of the conductive portion 3 connected to the top of the transparent conductive layer 2. The sealing portion 4 is connected to the top of the transparent conductive layer 2 and covers the conductive portion 3. One end of the side extraction electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate.

[0073] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the top surface of the sealing portion 4 of the first conductive layer is connected to the transparent conductive layer 2 of the second conductive layer, and the top surface of the sealing portion 4 of the second conductive layer is connected to the transparent conductive layer 2 of the first conductive layer; the sealing portion 4 of the first conductive layer covers one side surface of the color-changing material layer, and the sealing portion 4 of the second conductive layer covers the side surface corresponding to the above side surface. The structural schematic diagram of the obtained electrochromic device is shown as follows: Figure 3 shown.

[0074] In this embodiment, the base layer 1 is a flexible base material layer with a thickness of 20-500 μm; the transparent conductive layer 2 has a thickness of 0.1 nm-10 μm; the conductive portion 3 has a width of 0.02-100 mm and a thickness of 0.05-500 μm. The sealing portion 4 has a thickness of 1 μm-2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0075] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0076] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the provision of the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0077] Example 2

[0078] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0079] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 4 As shown, compared with Example 1, the top surface of the sealing portion 4 of the first conductive layer provided in this embodiment is provided with a release film layer 6 , and the top surface of the sealing portion 4 of the second conductive layer provided with a release film layer 6 .

[0080] In this embodiment, the release film layer 6 is provided to facilitate storage and transportation of the first conductive layer and the second conductive layer. When the first conductive layer and the second conductive layer are needed to prepare an electrochromic device, only the release film layer 6 needs to be peeled off.

[0081] Example 3

[0082] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0083] The top view of the first conductive layer and the second conductive layer is as follows Figure 5 As shown, the side view of the first conductive layer and the second conductive layer is as shown Figure 6 shown.

[0084] The first conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, two rectangular conductive portions 3, a sealing portion 4, and two side extraction electrodes 5 connected to the conductive portions 3. The two rectangular conductive portions 3 are connected to form an L-shape, with each side of the L-shaped conductive portion 3 connected to a side extraction electrode 5. One end of the side extraction electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate. The transparent conductive layer 2 is laminated on the top surface of the base layer 1, with the bottom of the conductive portion 3 connected to the top surface of the transparent conductive layer 2. The sealing portion 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive portion 3. A release film layer 6 is provided on the top surface of the sealing portion 4.

[0085] The second conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, two rectangular conductive portions 3, a sealing portion 4, and two side extraction electrodes 5 connected to the conductive portions 3. The two rectangular conductive portions 3 are connected to form an L-shape, with each side of the L-shaped conductive portion 3 connected to a side extraction electrode 5. One end of the side extraction electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate. The transparent conductive layer 2 is laminated on the top surface of the base layer 1, with the bottom of the conductive portion 3 connected to the top surface of the transparent conductive layer 2. The sealing portion 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive portion 3. A release film layer 6 is provided on the top surface of the sealing portion 4.

[0086] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the top surface of the sealing part 4 of the first conductive layer is connected to the transparent conductive layer 2 of the second conductive layer, and the top surface of the sealing part 4 of the second conductive layer is connected to the transparent conductive layer 2 of the first conductive layer; the sealing part 4 of the first conductive layer covers two side surfaces of the color-changing material layer, and the sealing part 4 of the second conductive layer covers two side surfaces corresponding to the above-mentioned side surfaces.

[0087] In this embodiment, the base layer 11 is a flexible base material layer with a thickness of 20-500 μm; the transparent conductive layer 2 has a thickness of 0.1 nm-10 μm; the conductive portion 3 has a width of 0.02-100 mm and a thickness of 0.05-500 μm. The sealing portion 4 has a thickness of 1 μm-2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0088] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0089] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the provision of the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0090] Example 4

[0091] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0092] The top view of the first conductive layer and the second conductive layer is as follows Figure 7As shown, the side view of the first conductive layer and the second conductive layer is as shown Figure 8 shown.

[0093] The first conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3, a sealing portion 4, and a side lead electrode 5 connected to the conductive portion 3. The rectangular conductive portion 3 is located in the center of the edge-sealed conductive substrate. The transparent conductive layer 2 is laminated on top of the base layer 1. The bottom of the conductive portion 3 is embedded in the base layer 1, and the remaining portion is embedded in the transparent conductive layer 2, with the top of the conductive portion 3 flush with the top surface of the transparent conductive layer 2. The sealing portion 4 is "mouth"-shaped and connected to the top surface of the transparent conductive layer 2. One end of the side lead electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate. A release film layer 6 is provided on the top surface of the sealing portion 4.

[0094] The second conductive layer is an edge-sealed conductive substrate, comprising a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3, a sealing portion 4, and a side lead electrode 5 connected to the conductive portion 3. The rectangular conductive portion 3 is located in the center of the edge-sealed conductive substrate; the transparent conductive layer 2 is laminated on top of the base layer 1; the bottom of the conductive portion 3 is embedded in the base layer 1, and the remaining portion is embedded in the transparent conductive layer 2, with the top of the conductive portion 3 flush with the top surface of the transparent conductive layer 2. The sealing portion 4 is "mouth"-shaped and connected to the top surface of the transparent conductive layer 2. One end of the side lead electrode 5 is connected to the conductive portion 3, and the other end is flush with the edge of the edge-sealed conductive substrate. A release film layer 6 is provided on the top surface of the sealing portion 4.

[0095] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the sealing portion 4 of the first conductive layer is connected to the sealing portion 4 of the second conductive layer; the sealing portion 4 of the first conductive layer covers a portion of the four side surfaces of the color-changing material layer, and the sealing portion 4 of the second conductive layer covers the remaining portions of the four side surfaces. The structural diagram of the obtained electrochromic device is shown as follows: Figure 9 shown.

[0096] In this embodiment, the base layer 1 is a glass layer, the transparent conductive layer 2 has a thickness of 0.1 nm to 10 μm, the conductive portion 3 has a width of 0.02 to 100 mm and a thickness of 0.05 to 500 μm. The sealing portion 4 has a thickness of 1 μm to 2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0097] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0098] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the provision of the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0099] Example 5

[0100] This embodiment provides a circular electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0101] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 10 shown.

[0102] The first conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a circular conductive part 3, a sealing part 4 and a side lead-out electrode 5 connected to the circular conductive part 3; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; the sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3; one end of the side lead-out electrode 5 is connected to the circular conductive part 3, and the other end extends out of the edge of the edge-sealed conductive substrate.

[0103] The second conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a circular conductive part 3, a sealing part 4 and a side lead-out electrode 5 connected to the circular conductive part 3; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; the sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3; one end of the side lead-out electrode 5 is connected to the circular conductive part 3, and the other end extends out of the edge of the edge-sealed conductive substrate.

[0104] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the sealing portion 4 of the first conductive layer is connected to the sealing portion 4 of the second conductive layer; the sealing portion 4 of the first conductive layer covers a part of the side surface of the color-changing material layer, and the sealing portion 4 of the second conductive layer covers the remaining part of the above side surface. The structural schematic diagram of the obtained electrochromic device is shown as follows Figure 11 shown.

[0105] In this embodiment, the base layer 1 is a flexible base material layer with a thickness of 20-500 μm; the transparent conductive layer 2 has a thickness of 0.1 nm-10 μm; the conductive portion 3 has a width of 0.02-100 mm and a thickness of 0.05-500 μm. The sealing portion 4 has a thickness of 1 μm-2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0106] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0107] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the provision of the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0108] Example 6

[0109] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0110] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 12 shown.

[0111] The first conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive part 3, a sealing part 4, and a side lead electrode 5 connected to the conductive part 3; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; the sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3; one end of the side lead electrode 5 is connected to the conductive part 3, and the other end is folded over to the bottom surface of the base layer 1.

[0112] The second conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive part 3, a sealing part 4, and a side lead electrode 5 connected to the conductive part 3; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; the sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3; one end of the side lead electrode 5 is connected to the conductive part 3, and the other end is folded over to the bottom surface of the base layer 1.

[0113] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the top surface of the sealing portion 4 of the first conductive layer is connected to the transparent conductive layer 2 of the second conductive layer, and the top surface of the sealing portion 4 of the second conductive layer is connected to the transparent conductive layer 2 of the first conductive layer; the sealing portion 4 of the first conductive layer covers one side surface of the color-changing material layer, and the sealing portion 4 of the second conductive layer covers the side surface corresponding to the above side surface. The structural schematic diagram of the obtained electrochromic device is shown as follows Figure 13 shown.

[0114] In this embodiment, the base layer 1 is a flexible base material layer with a thickness of 20-500 μm; the transparent conductive layer 2 has a thickness of 0.1 nm-10 μm; the conductive portion 3 has a width of 0.02-100 mm and a thickness of 0.05-500 μm. The sealing portion 4 has a thickness of 1 μm-2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0115] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0116] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the provision of the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0117] Example 7

[0118] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0119] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 14 shown.

[0120] The first conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3 and a sealing portion 4; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive portion 3 is connected to the top surface of the transparent conductive layer 2; the sealing portion 4 is connected to the top surface of the transparent conductive layer 2 and does not contact the conductive portion 3; the two ends of the conductive portion 3 are flush with the edge of the edge-sealed conductive substrate, so that the conductive portion 3 acts as a side lead-out electrode 5.

[0121] The second conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive portion 3 and a sealing portion 4; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive portion 3 is connected to the top surface of the transparent conductive layer 2; the sealing portion 4 is connected to the top surface of the transparent conductive layer 2 and does not contact the conductive portion 3; the two ends of the conductive portion 3 are flush with the edge of the edge-sealed conductive substrate, so that the conductive portion 3 acts as a side lead-out electrode 5.

[0122] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the top surface of the sealing portion 4 of the first conductive layer is connected to the transparent conductive layer 2 of the second conductive layer, and the top surface of the sealing portion 4 of the second conductive layer is connected to the transparent conductive layer 2 of the first conductive layer; the sealing portion 4 of the first conductive layer covers one side surface of the color-changing material layer, and the sealing portion 4 of the second conductive layer covers the side surface corresponding to the above side surface; the conductive portions 3 of the first conductive layer and the second conductive layer are exposed to the outside of the electrochromic device to facilitate connection with an external power supply, thereby playing the role of a side extraction electrode 5; the structural schematic diagram of the obtained electrochromic device is shown in FIG. Figure 15 shown.

[0123] In this embodiment, the base layer 1 is a glass layer, the transparent conductive layer 2 has a thickness of 0.1 nm to 10 μm, the conductive portion 3 has a width of 0.02 to 100 mm and a thickness of 0.05 to 500 μm. The sealing portion 4 has a thickness of 10 nm to 2 mm, and is thicker than the conductive portion 3. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0124] In the electrochromic device provided in this embodiment, due to the setting of the sealing portion 4 in the edge-sealed conductive substrate provided by the first conductive layer and the second conductive layer, the sealing portion 4 can play the role of encapsulating the color-changing material layer, effectively avoiding the defect of uneven color change caused by the color-changing material layer being affected by water and oxygen in the air.

[0125] Moreover, due to the packaging effect of the sealing part 4, the sealing part 4 can strengthen the structure of the electrochromic device, making the electrochromic device less likely to undergo demolding, thereby further improving the yield of the electrochromic device; the setting of the conductive part 3 as the side lead-out electrode 5 makes the operation of leading out the electrode of the electrochromic device easier, thereby reducing the use of organic solvents.

[0126] Example 8

[0127] This embodiment provides a rectangular parallelepiped electrochromic device, which includes a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence.

[0128] The side view of the first conductive layer and the second conductive layer is as shown in FIG. Figure 16 As shown, the top view of the first conductive layer is as shown Figure 17 As shown, the top view of the second conductive layer is as shown Figure 18 shown.

[0129] The first conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive part 3, two sealing parts 4 and a side lead-out electrode 5 connected to the conductive part 3. The first conductive layer is also provided with two edge notches 7 corresponding to the side lead-out electrodes 5 of the second conductive layer; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; one sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3, and the other sealing part 4 is symmetrically arranged on the other side of the transparent conductive layer 2; one end of the side lead-out electrode 5 is connected to the conductive part 3, and the other end is flush with the edge of the edge-sealed conductive substrate; the top surface of the sealing part 4 is provided with a release film layer 6.

[0130] The second conductive layer is an edge-sealed conductive substrate, including a base layer 1, a transparent conductive layer 2, a rectangular conductive part 3, two sealing parts 4 and two side lead-out electrodes 5 connected to the conductive part 3. The second conductive layer is also provided with an edge notch 7 corresponding to the side lead-out electrode 5 of the first conductive layer; the position of the side lead-out electrode 5 of the second conductive layer corresponds to the edge notch 7 on the first conductive layer, and the edge notch 7 of the second conductive layer corresponds to the side lead-out electrode 5 of the first conductive layer; the transparent conductive layer 2 is stacked on the top surface of the base layer 1, and the bottom of the conductive part 3 is connected to the top surface of the transparent conductive layer 2; one sealing part 4 is connected to the top surface of the transparent conductive layer 2 and covers the conductive part 3, and the other sealing part 4 is symmetrically arranged on the other side of the transparent conductive layer 2; one end of the side lead-out electrode 5 is connected to the conductive part 3, and the other end is flush with the edge of the edge-sealed conductive substrate; the top surface of the sealing part 4 is provided with a release film layer 6.

[0131] The transparent conductive layer 2 of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer 2 of the second conductive layer is connected to the bottom surface of the color-changing material layer; the top surface of the sealing portion 4 covering the conductive portion 3 in the first conductive layer is connected to the top surface of the sealing portion 4 covering the conductive portion 3 in the second conductive layer, and the top surface of another sealing portion 4 in the first conductive layer is connected to the top surface of another sealing portion 4 in the second conductive layer; the sealing portion 4 of the first conductive layer covers a portion of the two corresponding side surfaces of the color-changing material layer, and the sealing portion 4 of the first conductive layer covers the remaining portion of the two corresponding side surfaces of the color-changing material layer. The structural schematic diagram of the obtained electrochromic device is shown as follows. Figure 19 shown.

[0132] In this embodiment, the base layer 1 is a flexible base material layer with a thickness of 20-500 μm; the transparent conductive layer 2 has a thickness of 0.1 nm-10 μm; the conductive portion 3 has a width of 0.02-100 mm and a thickness of 0.05-500 μm. The sealing portion 4 has a thickness of 1 μm-2 mm. Those skilled in the art will be able to reasonably select the thickness of the sealing portion 4 based on the thickness of the color-changing material layer.

[0133] In the electrochromic device provided in this embodiment, the provision of the sealing portion 4 in the edge-sealed conductive substrate provided by the first and second conductive layers enables the sealing portion 4 to encapsulate the color-changing material layer, effectively preventing the color-changing material layer from being affected by water and oxygen in the air, resulting in uneven discoloration. Furthermore, due to the encapsulation effect of the sealing portion 4, the sealing portion 4 can also strengthen the structure of the electrochromic device, making the electrochromic device less susceptible to mold release and further improving the yield of the electrochromic device. The provision of the side extraction electrodes 5 facilitates the operation of extracting the electrodes from the electrochromic device.

[0134] Moreover, in this embodiment, the edge notch 7 and the side lead-out electrode 5 on the opposite side are arranged relative to each other, so that the side lead-out electrode 5 can be easily connected to an external circuit.

[0135] In summary, the edge-sealed conductive substrate provided by the present invention has a simple structure. The setting of the side lead-out electrode avoids the electrode arrangement operation after the electrochromic device is assembled, overcomes the defects of demolding and crookedness caused by the electrode arrangement operation, and reduces the use of organic solvents. The application of the edge-sealed conductive substrate provided by the present invention to prepare electrochromic devices can enable the sealing portion of the edge-sealed conductive substrate to play an edge-sealing role on the color-changing material layer, thereby weakening or isolating the influence of water and oxygen in the air on the color-changing material layer, thereby ensuring the uniform color change of the electrochromic device. The setting of the sealing portion of the edge-sealed conductive substrate provided by the present invention enables the electrochromic device to be prepared in a roll-to-roll manner when the base layer is a flexible base, and the prepared long strip electrochromic device is rolled up for standby use. Due to the setting of the sealing portion in the length direction and / or width direction, the influence of water and oxygen on the color-changing material layer is greatly reduced, effectively avoiding the defect of uneven color change of the color-changing material layer caused by the influence of water and oxygen in the air. The application of the edge-sealed conductive substrate provided by the present invention to prepare electrochromic devices can utilize the sealing portion to enhance the structural strength of the obtained electrochromic device.

[0136] The applicant declares that the above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention fall within the scope of protection and disclosure of the present invention.

Claims

1. An edge-sealed conductive substrate, characterized in that: The edge-sealed conductive substrate comprises a base layer, a transparent conductive layer, at least one conductive portion, at least one sealing portion, a release film layer covering the top surface of the sealing portion, and at least one side lead-out electrode connected to the conductive portion; The transparent conductive layer is stacked on the top surface of the base layer; the conductive portion is connected to the transparent conductive layer; The sealing portion is connected to the top surface of the transparent conductive layer; When the edge-sealed conductive substrate and the color-changing material layer form an electrochromic device, the transparent conductive layer in the edge-sealed conductive substrate is connected to the top surface or bottom surface of the color-changing material layer, and the sealing portion in the edge-sealed conductive substrate covers at least one side surface of the color-changing material layer.

2. The edge-sealed conductive substrate according to claim 1, wherein: The material of the substrate layer includes glass and / or flexible substrate material.

3. The edge-sealed conductive substrate according to claim 2, wherein: The thickness of the flexible base material is 20-500 μm.

4. The edge-sealed conductive substrate according to any one of claims 1 to 3, characterized in that: The thickness of the transparent conductive layer is 0.1 nm-10 μm.

5. The edge-sealed conductive substrate according to claim 4, characterized in that The thickness of the transparent conductive layer is 0.1 nm-1 μm.

6. The edge-sealed conductive substrate according to claim 1, wherein: The conductive portion includes a conductive portion with a regular shape and / or a conductive portion with an irregular shape.

7. The edge-sealed conductive substrate according to claim 1, wherein: The conductive portion has a width of 0.02-100 mm and a thickness of 0.05-500 μm.

8. The edge-sealed conductive substrate according to claim 7, wherein: The thickness of the conductive part is 0.05-200 μm.

9. The edge-sealed conductive substrate according to claim 1, wherein: The thickness of the sealing portion is 1 μm-2 mm.

10. The edge-sealed conductive substrate according to claim 1, wherein: One end of the side lead electrode is connected to the conductive portion, and the other end does not extend out of the edge of the edge sealing conductive substrate; Alternatively, one end of the side lead electrode is connected to the conductive portion, and the other end extends out to seal the edge of the conductive substrate; Alternatively, one end of the side lead electrode is connected to the conductive portion, and the other end is folded over to the bottom surface of the base layer.

11. The edge-sealed conductive substrate according to claim 1, wherein: The edge-sealed conductive substrate is further provided with at least one edge notch penetrating through the base layer and the transparent conductive layer.

12. An electrochromic device, characterized in that: The electrochromic device comprises a first conductive layer, a color-changing material layer, and a second conductive layer stacked in sequence; the first conductive layer and the second conductive layer are the edge-sealed conductive substrate according to any one of claims 1 to 11; The transparent conductive layer of the first conductive layer is connected to the top surface of the color-changing material layer, and the transparent conductive layer of the second conductive layer is connected to the bottom surface of the color-changing material layer; The sealing portion of the first conductive layer covers at least one side of the color-changing material layer, and the sealing portion of the second conductive layer covers at least one side of the color-changing material layer; The color-changing material layer includes an electrochromic layer, an electrolyte layer and an ion storage layer.

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