Electrochromic membranes and color-changing glass

Abstract

An electrochromic membrane (100) and a discoloring glass are provided. The electrochromic membrane (100) includes a first conductive substrate (110), an electrochromic layer (120), and a second conductive substrate (130) laminated in sequence. The orthographic projection of the electrochromic layer (120) in the plane where the first receiving groove (111) is located overlaps at least one third receiving groove (121), and the first receiving groove (111) and the third receiving groove (121) communicate with each other to form a first concave groove (140). The orthographic projection of the electrochromic layer (120) in the plane where the second receiving groove (131) is located overlaps at least one third receiving groove (121), and the second receiving groove (131) and the third receiving groove (121) communicate with each other to form a second concave groove (150). The widths of both the first concave groove (140) and the second concave groove (150) are a, the interval between the orthographic projections of any adjacent first concave groove (140) and second concave groove (150) in the plane where the electrochromic layer (120) is located is b, and 0 < a + b ≤ 100 mm. By providing a remaining amount of bending space at the edge of the electrochromic membrane (100) by the first concave groove (140) and the second concave groove (150), the occurrence of wrinkles at the edge of the electrochromic membrane (100) is greatly reduced or avoided, improving the aesthetics of the product.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to a Chinese patent application filed with the China Patent Office on June 16, 2022, bearing application number 202210686231.7 and titled "Electrochromic Membrane and Color-Changing Glass," the entire contents of which are incorporated herein by reference. [Technical field]

[0002] This application relates to the field of electrochromics, and in particular to electrochromic membranes and color changing glasses. [Background technology]

[0003] Electrochromism is a phenomenon in which the optical properties (reflectance, transmittance, absorptance, etc.) of a material undergo a stable, reversible color change when an electric field is applied, and this is manifested in the appearance as a reversible change in color and transparency.

[0004] Conventional electrochromic membranes can be curved to meet the needs of the application of scenes such as curved surfaces. However, in some application scenes, such as the roof glass of a vehicle, not only one side of the electrochromic membrane needs to be curved, but also two or more sides need to be curved, which makes the electrochromic membrane prone to wrinkles, especially the edges of the electrochromic membrane prone to wrinkles, which not only makes the appearance unacceptable to users, but also worsens the visual experience of users. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, it is an object of the present application to provide an electrochromic membrane and color-changing glass to overcome the shortcomings in the prior art. [Means for solving the problem]

[0006] One aspect of the present application includes a first conductive substrate, an electrochromic layer, and a second conductive substrate stacked in sequence. A first receiving groove is provided at an edge of the first conductive substrate, a second receiving groove is provided at an edge of the second conductive substrate, and two or more third receiving grooves are provided at an edge of the electrochromic layer. A front projection of the electrochromic layer in a plane where the first receiving groove is located overlaps at least one of the third receiving grooves, and the first receiving groove and the third receiving groove communicate with each other to form a first concave groove. A front projection of the electrochromic layer in a plane where the second receiving groove is located overlaps at least one of the third receiving grooves, and the second receiving groove and the third receiving groove communicate with each other to form a second concave groove. The first concave groove and the second concave groove are alternately provided at an edge of the electrochromic membrane. The width of the first concave groove and the width of the second concave groove are both a, and a distance between front projections of any adjacent first concave groove and second concave groove in a plane where the electrochromic layer is located is b. A sum of the a and the b satisfies a relationship of 0 < a + b ≤ 100 mm to provide an electrochromic membrane.

[0007] In one aspect of the present application, by opening the first concave groove and the second concave groove alternately provided at an edge of the electrochromic membrane, in a process where the electrochromic membrane bends, the first concave groove and the second concave groove provide a remaining space amount required for bending the electrochromic membrane, greatly reducing or avoiding the occurrence of wrinkles at an edge of the electrochromic membrane, improving the aesthetics of the electrochromic membrane, and further limiting that a sum of the width a of the concave groove and the distance b between the concave grooves satisfies a specific range, an effect of increasing the number of concave grooves in the same unit length at an edge of the electrochromic membrane can be achieved, improving the wrinkle relaxation effect, further reducing or avoiding the occurrence of wrinkles in the electrochromic membrane, further improving the aesthetics of the electrochromic membrane, and improving the visual experience of a user.

[0008] In some embodiments of the present application, the first receiving groove and the second receiving groove are each plural, and a plurality of the first concave grooves and a plurality of the second concave grooves are formed on the edge of the electrochromic membrane. Thereby, by providing a plurality of concave grooves, a plurality of conductive surfaces of the conductive substrate are exposed through the plurality of concave grooves, and by connecting to an external power source through a plurality of conductive surface lead-out electrodes, the electric conduction speed of the electrochromic membrane can be improved. On the other hand, the plurality of concave grooves provide a greater remaining space required for more bending of the electrochromic membrane, thereby further improving the effect of wrinkle relaxation and further reducing or avoiding the occurrence of wrinkles in the electrochromic membrane.

[0009] Preferably, the range of b is 0 < b ≤ 30 mm, and preferably, the range of b is 2 mm ≤ b ≤ 30 mm. Generally, the interval region between the concave grooves is an uncut region such as the conductive substrate and the electrochromic layer of the electrochromic membrane. The probability of wrinkles occurring in these regions is relatively high, and the degree of wrinkles is relatively serious. If the value of the interval b between the concave grooves is too large, the wrinkles of the electrochromic membrane will become more prominent or serious. The concave groove region correspondingly exposes the conductive surface of the conductive substrate. For example, the first concave groove can expose the conductive surface of the second conductive substrate, and the second concave groove can expose the conductive surface of the first conductive substrate. Therefore, if the value of the interval b between the concave grooves is too small, it is easy to cause electrical connection between the conductive surfaces on both sides and form a short circuit. Thereby, by limiting the range of the interval b between the concave grooves, it is possible to avoid short-circuiting of the electrochromic membrane and improve the safety and reliability of the use of the membrane. On the other hand, by controlling the range of the interval b between the concave grooves, it is possible to achieve the effect of increasing the width of the concave grooves or increasing the number of concave grooves within the unit length of the edge of the electrochromic membrane, further improving the effect of wrinkle relaxation, and further improving the aesthetics of the electrochromic membrane and the user's visual experience.

[0010] Preferably, the range of a is 10 mm≦a≦40 mm, and further, the range of a is 10 mm≦a≦40 mm, and the range of b is 3 mm≦b≦30 mm. Thus, by further restricting the range of the groove width a and the range of the groove interval b, the effect of increasing the number of grooves within a unit length of the edge of the electrochromic membrane can be further achieved, the effect of wrinkle relaxation can be improved, the occurrence of wrinkles on the electrochromic membrane can be further reduced or avoided, the aesthetics of the electrochromic membrane can be further improved, and the visual experience of the user can be improved.

[0011] Preferably, the sum of a and b satisfies the relationship of 20mm≦a+b≦40mm, and the range of a is 10mm≦a≦20mm, and the range of b is 10mm≦b≦20mm. By further restricting the range of the sum of the groove width a and the groove interval b, the number of grooves can be further increased within the same unit length of the edge of the electrochromic membrane, which provides the electrochromic membrane with a larger amount of residual space required for curvature and a more uniform distribution, further ensures the effect of wrinkle relief, further reduces or avoids the occurrence of wrinkles on the electrochromic membrane, further improves the aesthetics of the electrochromic membrane, and improves the visual experience of users; and by further restricting the width of the groove a and the interval b at the same time, the number of grooves within the unit length of the edge of the electrochromic membrane can be further increased, the distribution of the grooves can be more uniform, and the effect of wrinkle relief can be further improved.

[0012] Preferably, the thickness of at least one of the first conductive substrate and the second conductive substrate is 120 μm or more. Preferably, the thicknesses of both the first conductive substrate and the second conductive substrate are 120 μm or more. More preferably, the thickness of at least one of the first conductive substrate and the second conductive substrate is 150 μm or more. Further, the thicknesses of both the first conductive substrate and the second conductive substrate are 150 μm or more. By having the thickness value of the conductive substrate satisfy a specific magnitude, the wrinkle relaxation effect on the electrochromic membrane can be further improved, and the aesthetic appearance of the electrochromic membrane can be further improved.

[0013] Preferably, the depths of both the first concave groove and the second concave groove are h, where 0 < h ≤ 100 mm. Preferably, the range of h is 20 mm ≤ h ≤ 80 mm. Usually, if the depth of the concave groove is too small, there is less exposed conductive surface of the conductive substrate, which is disadvantageous for conductive extraction in the conductive substrate. If the depth of the concave groove is too large, the wider the electrochromic layer cut and removed, the narrower the discoloration region of the electrochromic membrane. Therefore, by limiting the depth of the concave groove within a certain range, not only can a sufficient conductive surface convenient for conductive extraction be ensured, but also it can be ensured that the electrochromic membrane has a sufficiently wide discoloration region, improving the practical area of the membrane.

[0014] Furthermore, the electrochromic membrane has an arrow height along a first direction of H1, and an arrow height along a second direction of H2, and the product of H1 and H2 satisfies the following relationship: H1×H2≦2500mm2, preferably, the first direction is perpendicular to the second direction, and more preferably, the first direction and the second direction are parallel to the electrochromic membrane. In some application scenarios, the electrochromic membrane may be curved in multiple directions, for example, the electrochromic membrane forms a hyperboloid structure due to the curvature in two directions, for example, the electrochromic membrane is curved along a first direction to form an arrow height H1, and curved along a second direction to form an arrow height H2, by restricting the product of the arrow heights in the two directions to be within a certain range, especially when the two directions are further restricted to be perpendicular to each other, the effect of wrinkle relief can be further improved and the aesthetics of the electrochromic membrane can be further improved.

[0015] Preferably, the first conductive substrate includes a first substrate layer and a first conductive layer laminated between the first substrate layer and the electrochromic layer, and the second conductive substrate includes a second substrate layer and a second conductive layer laminated between the second substrate layer and the electrochromic layer. Further, a first bus bar is provided on an edge of the first conductive substrate away from the electrochromic layer, a portion of the first bus bar is located in the first groove and is electrically connected to the second conductive layer, and a second bus bar is provided on an edge of the second conductive substrate away from the electrochromic layer, a portion of the second bus bar is located in the second groove and is electrically connected to the first conductive layer. In this way, by providing a conductive layer on the substrate layer, the conductive substrate can be more easily formed, and the conductive surface exposed by cutting the grooves is the conductive layer, which further forms an electrical connection with the exposed second conductive layer by the first bus bar, and an electrical connection with the exposed first conductive layer by the second bus bar. An external power source can introduce voltage or current to the conductive layer via the bus bar to form an effective electric field across the electrochromic membrane, and drive the color change phenomenon of the electrochromic membrane, etc.

[0016] Another aspect of the present invention further provides a color-changing glass comprising a glass layer and the above electrochromic membrane, the electrochromic membrane being laminated between at least two of the glass layers, whereby the electrochromic membrane is laminated between the glass layers, the glass layers can provide a good sandwiching effect for the electrochromic membrane, and the occurrence of wrinkles in the electrochromic membrane can be further prevented or reduced, thereby improving the overall aesthetics of the color-changing glass. Effect of the Invention

[0017] The technical solution of the present application provides first and second grooves alternately arranged on the edge of the electrochromic membrane, so that the first and second grooves provide the electrochromic membrane with the residual space required for bending during the bending process of the electrochromic membrane, thereby greatly reducing or avoiding the occurrence of wrinkles on the edge of the electrochromic membrane, thereby improving the aesthetics of the electrochromic membrane; and by further restricting the sum of the groove width a and the groove interval b to satisfy a certain range, the effect of increasing the number of grooves within the same unit length of the edge of the electrochromic membrane can be achieved, thereby improving the wrinkle relaxation effect, further reducing or avoiding the occurrence of wrinkles on the electrochromic membrane, further improving the aesthetics of the electrochromic membrane, and improving the visual experience of users.

[0018] In order to make the above objects, features and advantages of the present invention more apparent and comprehensible, preferred embodiments will be described in detail below in conjunction with the accompanying drawings. [Brief description of the drawings]

[0019] In order to more clearly explain the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings according to these drawings without creative efforts.

[0020] FIG. 1 shows a structural schematic diagram of an electrochromic membrane according to some embodiments of the present application at a certain viewing angle.

[0021] FIG. 2 shows a cross-sectional view of the AA portion in FIG.

[0022] FIG. 3 shows an enlarged view of part B in FIG.

[0023] FIG. 4 shows a structural schematic diagram of a first conductive substrate in an electrochromic membrane according to some embodiments of the present application at a certain viewing angle.

[0024] FIG. 5 shows a schematic structure diagram of an electrochromic layer in an electrochromic membrane according to some embodiments of the present application at a certain viewing angle.

[0025] FIG. 6 shows a structural schematic diagram of a second conductive substrate in an electrochromic membrane according to some embodiments of the present application at a certain viewing angle.

[0026] FIG. 7 shows a schematic diagram of another structure of an electrochromic membrane according to some embodiments of the present application at a certain viewing angle.

[0027] Explanation of symbols 100: electrochromic membrane, 110: first conductive substrate, 120: electrochromic layer, 130: second conductive substrate, 111: first receiving groove, 131: second receiving groove, 121: third receiving groove, 140: first recessed groove, 150: second recessed groove, 112: first substrate layer, 113: first conductive layer, 132: second substrate layer, 133: second conductive layer, 200: first bus bar, 300: second bus bar, 400: sealant. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the embodiments of the present application will be described in detail, and examples of the embodiments are shown in the drawings, and the same or similar reference numerals throughout refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are only intended to explain the present application, and cannot be understood as limiting the present application.

[0029] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly fixed to the other element, or there may be intervening elements present. When an element is referred to as being "connected" to another element, it may be directly connected to the other element, or there may also be intervening elements present. Conversely, when an element is referred to as being "directly" fixed or connected to another element, there are no intermediate elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for purposes of explanation only.

[0030] In this application, unless otherwise clearly specified and limited, the terms "attached", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, may be a fixed connection, a detachable connection, or may be integral, may be a mechanical connection, may be an electrical connection, may be a direct connection, may be an indirect connection via an intermediate medium, may be an internal communication between two elements, or may be an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific situation.

[0031] Additionally, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying a relative importance or number of the technical features depicted. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, "plurality" means two or more than two, unless expressly limited otherwise.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in the template specification herein are only for describing specific examples and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated items.

[0033] As shown in Figures 1-6, some embodiments of the present application provide an electrochromic membrane 100, which is mainly applied in electrochromic fields, such as architectural windows, automobile windows, and airplane windows. The electrochromic membrane 100 includes a first conductive substrate 110, an electrochromic layer 120, and a second conductive substrate 130, which are laminated in order.

[0034] It should be noted that both the first conductive substrate 110 and the second conductive substrate 130 completely cover the electrochromic layer 120 .

[0035] Specifically, the first conductive substrate 110 includes a first substrate layer 112 and a first conductive layer 113 laminated together, and the first conductive layer 113 is laminated between the first substrate layer 112 and the electrochromic layer 120. Here, the first conductive layer 113 completely covers the electrochromic layer 120.

[0036] At the same time, the second conductive substrate 130 includes a laminated second substrate layer 132 and a second conductive layer 133, and the second conductive layer 133 is laminated between the second substrate layer 132 and the electrochromic layer 120. Here, the second conductive layer 133 completely covers the electrochromic layer 120.

[0037] The first conductive layer 113 and the second conductive layer 133 are each connected to an external power source. By connecting the first conductive layer 113 and the second conductive layer 133 to the external power source, an electric field is applied between the first conductive layer 113 and the second conductive layer 133, and the electrochromic layer 120 undergoes a stable and reversible color change due to the applied electric field.

[0038] A first receiving groove 111 is provided at an edge of the first conductive substrate 110, a second receiving groove 131 is provided at an edge of the second conductive substrate 130, and two or more third receiving grooves 121 are provided at an edge of the electrochromic layer 120. The number of the first receiving groove 111, the second receiving groove 131, and the third receiving groove 121 may be any number equal to or greater than two, and may be specifically set according to the actual situation.

[0039] The sum of the number of the first accommodating grooves 111 and the number of the second accommodating grooves 131 is equal to the number of the third accommodating grooves 121.

[0040] Here, the first accommodating groove 111 overlaps with at least one third accommodating groove 121 when projected orthogonally on the plane on which the electrochromic layer 120 is located, and one first accommodating groove 111 and one third accommodating groove 121 are connected to form one first concave groove 140.

[0041] In addition, the second accommodating groove 131 overlaps with at least one third accommodating groove 121 when projected orthogonally on the plane on which the electrochromic layer 120 is located, and one second accommodating groove 131 and one third accommodating groove 121 are connected to form one second concave groove 150.

[0042] Specifically, the orthogonal projections of the first groove 140 and the second groove 150 on the plane in which the electrochromic layer 120 is located are spaced apart from each other, i.e., the first groove 140 and the second groove 150 form a groove structure that intersects each other at the edge of the electrochromic membrane 100.

[0043] In some embodiments of the present application, the first receiving groove 111 and the second receiving groove 131 are each multiple, and a plurality of the first grooves 140 and a plurality of the second grooves 150 are formed on the edge of the electrochromic membrane 100. Here, the number of the first grooves 140 and the number of the second grooves 150 may be any number, such as 1, 2, or more than 2, and can be specifically set according to actual circumstances.

[0044] Additionally, the first groove 140 and the second groove 150 may be provided on either side or multiple sides of the electrochromic membrane 100, where "multiple sides" refers to both sides or any number of sides or more.

[0045] Preferably, as shown in FIG. 7 , a plurality of first grooves 140 and a plurality of second grooves 150 are provided on each side of the edge of the electrochromic membrane 100. In the process of bending the edge of the electrochromic membrane 100, the first grooves 140 and the second grooves 150 provide a remaining space for bending at the edge of the electrochromic membrane 100, so as to greatly reduce or avoid the occurrence of wrinkles at the edge of the electrochromic membrane 100, and improve the aesthetics of the electrochromic membrane 100.

[0046] The first grooves 140 and the second grooves 150 are alternately provided on the edge of the electrochromic membrane 100. Specifically, any one of the first grooves 140 and any one of the second grooves 150 has a gap when orthogonally projected on a plane on which the electrochromic layer 120 is located.

[0047] Preferably, the width of the first groove 140 and the width of the second groove 150 are both equal to a.

[0048] The width of the first groove 140 is the length of the first groove 140 located on one side of the edge of the electrochromic membrane 100 in a direction perpendicular to the thickness of the electrochromic membrane 100 and parallel to that side.

[0049] The width of the second groove 150 is the length of the second groove 150 located on one side of the edge of the electrochromic film 100 in a direction perpendicular to the thickness of the electrochromic film 100 and parallel to the one side.

[0050] Furthermore, the distance between the orthographic projections on the plane where the electrochromic layer 120 of any adjacent first concave groove 140 and second concave groove 150 is located is b, where the sum of a and b satisfies the relationship 0 < a + b ≤ 100 mm.

[0051] It can be understood that the sum of the width of the first concave groove 140 or the width of the second concave groove 150 and the distance between the orthographic projections on the plane where the electrochromic layer 120 of the adjacent first concave groove 140 and second concave groove 150 is located is 100 mm or less. By adjusting the range of a + b, the number of concave grooves at the edge of the electrochromic membrane 100 can be adjusted, and by increasing the number of concave grooves at the edge of the electrochromic membrane 100, the occurrence of wrinkles at the edge of the electrochromic membrane 100 can be avoided.

[0052] Specifically, the range of a + b can be any of the following ranges: 0 < a + b ≤ 100 mm, 10 mm < a + b ≤ 100 mm, 20 mm < a + b ≤ 100 mm, 30 mm < a + b ≤ 100 mm, 40 mm < a + b ≤ 100 mm, 50 mm < a + b ≤ 100 mm, 60 mm < a + b ≤ 100 mm, 70 mm < a + b ≤ 100 mm, 80 mm < a + b ≤ 100 mm, 90 mm < a + b ≤ 100 mm, 0 mm < a + b ≤ 90 mm, 10 mm < a + b ≤ 90 mm, 20 mm < a + b ≤ 90 mm, 30 mm < a + b ≤ 90 mm, 40 mm < a + b ≤ 90 mm, 50 mm < a + b ≤ 90 mm, 60 mm < a + b ≤ 90 mm, 70 mm < a + b ≤ 90 mm, 80 mm < a + b ≤ 90 mm, 0 < a + b ≤ 80 mm, 10 mm < a + b ≤ 80 mm, 20 mm < a + b ≤ 80 mm, 30 mm < a + b ≤ 80 mm, 40 mm < a + b ≤ 80 mm, 50 mm < a + b ≤ 80 mm, 60 mm < a + b ≤ 80 mm, 70 mm < a + b ≤ 80 mm, 0 < a + b ≤ 70 mm, 10 mm < a + b ≤ 70 mm, 20 mm < a + b ≤ 70 mm, 30 mm < a + b ≤ 70 mm, 40 mm < a + b ≤ 70 mm, 50 mm < a + b ≤ 70 mm, 60 mm < a + b ≤ 70 mm, 0 < a + b ≤ 60 mm, 10 mm < a + b ≤ 60 mm, 20 mm < a + b ≤ 60 mm, 30 mm < a + b ≤ 60 mm, 40 mm < a + b ≤ 60 mm, 50 mm < a + b ≤ 60 mm, 0 < a + b ≤ 50 mm, 10 mm < a + b ≤ 50 mm, 20 mm < a + b ≤ 50 mm, 30 mm < a + b ≤ 50 mm, 40 mm < a + b ≤ 50 mm, 0 < a + b ≤ 40 mm, 10 mm < a + b ≤ 40 mm, 20 mm < a + b ≤ 40 mm, 30 mm < a + b ≤ 40 mm, 0 < a + b ≤ 30 mm, 10 mm < a + b ≤ 30 mm, 20 mm < a + b ≤ 30 mm, 0 < a + b ≤ 20 mm, 10 mm < a + b ≤ 20 mm, and 0 < a + b ≤ 10 mm, and can be specifically limited according to the actual situation.

[0053] As shown in FIGS. 2 and 3, in some embodiments of the present application, the depth of the first concave groove 140 and the depth of the second concave groove 150 are both h, and 0 < h ≤ 100 mm.

[0054] Note that the depth of the first concave groove 140 is equal to the sum of the thickness of the first conductive substrate 110 and the thickness of the electrochromic layer 120, and the depth of the second concave groove 150 is equal to the sum of the thickness of the second conductive substrate 130 and the thickness of the electrochromic layer 120.

[0055] In some embodiments of the present application, since the thickness of the first conductive substrate 110 is equal to the thickness of the second conductive substrate 130, the depth of the first concave groove 140 is equal to the depth of the second concave groove 150.

[0056] Specifically, the range of the value of h may be any range among 0 < h ≤ 100 mm, 10 mm < h ≤ 100 mm, 20 mm < h ≤ 100 mm, 30 mm < h ≤ 100 mm, 40 mm < h ≤ 100 mm, 50 mm < h ≤ 100 mm, 60 mm < h ≤ 100 mm, 70 mm < h ≤ 100 mm, 80 mm < h ≤ 100 mm, 90 mm < h ≤ 100 mm, 0 < h ≤ 90 mm, 10 mm < h ≤ 90 mm, 20 mm < h ≤ 90 mm, 30 mm < h ≤ 90 mm, 40 mm < h ≤ 90 mm, 50 mm < h ≤ 90 mm, 60 mm < h ≤ 90 mm, 70 mm < h ≤ 90 mm, 80 mm < h ≤ 90 mm, 0 < h ≤ 80 mm, 10 mm < h ≤ 80 mm, 20 mm < h ≤ 80 mm, 30 mm < h ≤ 80 mm, 40 mm < h ≤ 80 mm, 50 mm < h ≤ 80 mm, 60 mm < h ≤ 80 mm, 70 mm < h ≤ 80 mm, 0 < h ≤ 70 mm, 10 mm < h ≤ 70 mm, 20 mm < h ≤ 70 mm, 30 mm < h ≤ 70 mm, 40 mm < h ≤ 70 mm, 50 mm < h ≤ 70 mm, 60 mm < h ≤ 70 mm, 0 < h ≤ 60 mm, 10 mm < h ≤ 60 mm, 20 mm < h ≤ 60 mm, 30 mm < h ≤ 60 mm, 40 mm < h ≤ 60 mm, 50 mm < h ≤ 60 mm, 0 < h ≤ 50 mm, 10 mm < h ≤ 50 mm, 20 mm < h ≤ 50 mm, 30 mm < h ≤ 50 mm, 40 mm < h ≤ 50 mm, 0 < h ≤ 40 mm, 10 mm < h ≤ 40 mm, 20 mm < h ≤ 40 mm, 30 mm < h ≤ 40 mm, 0 < h ≤ 30 mm, 10 mm < h ≤ 30 mm, 20 mm < h ≤ 30 mm, 0 < h ≤ 20 mm, 10 mm < h ≤ 20 mm, and 0 < h ≤ 10 mm, and can be specifically limited according to the actual situation.

[0057] For better understanding, in some embodiments of the present application, the depth of the first concave groove 140 and the depth of the second concave groove 150 are determined by the thickness of the first conductive substrate 110, the thickness of the second conductive substrate 130, and the thickness of the electrochromic layer 120. That is, by increasing or decreasing the thickness of the first conductive substrate 110, the thickness of the second conductive substrate 130, and the thickness of the electrochromic layer 120, the depth of the first concave groove 140 and the depth of the second concave groove 150 can be increased or decreased.

[0058] In some embodiments of the present application, the range of the value of b is 0 < b ≤ 30 mm.

[0059] It should be noted that the range of the value of b may be any range among 0 < b ≤ 30 mm, 1 mm < b ≤ 30 mm, 2 mm < b ≤ 30 mm, 3 mm < b ≤ 30 mm, 4 mm < b ≤ 30 mm, 5 mm < b ≤ 30 mm, 6 mm < b ≤ 30 mm, 7 mm < b ≤ 30 mm, 8 mm < b ≤ 30 mm, 9 mm < b ≤ 30 mm, 10 mm < b ≤ 30 mm, 11 mm < b ≤ 30 mm, 12 mm < b ≤ 30 mm, 13 mm < b ≤ 30 mm, 14 mm < b ≤ 30 mm, 15 mm < b ≤ 30 mm, 16 mm < b ≤ 30 mm, 17 mm < b ≤ 30 mm, 18 mm < b ≤ 30 mm, 19 mm < b ≤ 30 mm, 20 mm < b ≤ 30 mm, 21 mm < b ≤ 30 mm, 22 mm < b ≤ 30 mm, 23 mm < b ≤ 30 mm, 24 mm < b ≤ 30 mm, 25 mm < b ≤ 30 mm, 26 mm < b ≤ 30 mm, 27 mm < b ≤ 30 mm, 28 mm < b ≤ 30 mm, and 29 mm < b ≤ 30 mm.

[0060] In some embodiments of the present application, the range of the value of b is 2 mm ≤ b ≤ 30 mm.

[0061] The range of the value of b is: 2mm≦b≦30mm, 2mm≦b≦29mm, 2mm≦b≦28mm, 2mm≦b≦27mm, 2mm≦b≦26mm, 2mm≦b≦25mm, 2mm≦b≦24mm, 2mm≦b≦23mm, 2mm≦b≦22mm, 2mm≦b≦21mm, 2mm≦b≦20mm, 2mm≦b≦19mm, 2mm≦b≦18mm, 2mm≦b≦17mm , 2mm≦b≦16mm, 2mm≦b≦15mm, 2mm≦b≦14mm, 2mm≦b≦13mm, 2mm≦b≦12mm, 2mm≦b≦11mm, 2mm≦b≦10mm, 2mm≦b≦9mm, 2mm≦b≦8mm, 2mm≦b≦7mm, 2mm≦b≦6mm, 2mm≦b≦5mm, 2mm≦b≦4mm and 2mm≦b≦3mm.

[0062] In some embodiments of the present application, the ranges of a and b are 10 mm≦a≦40 mm and 3 mm≦b≦30 mm, respectively.

[0063] The range of a may be any of the following ranges: 10mm≦a≦40mm, 15mm≦a≦40mm, 15mm≦a≦35mm, 15mm≦a≦30mm, 15mm≦a≦25mm, 15mm≦a≦20mm, 20mm≦a≦40mm, 20mm≦a≦35mm, 20mm≦a≦30mm, 20mm≦a≦25mm, 25mm≦a≦40mm, 25mm≦a≦35mm, 25mm≦a≦30mm, 30mm≦a≦40mm, 30mm≦a≦35mm, 35mm≦a≦40mm, 10mm≦a≦35mm, 10mm≦a≦30mm, 10mm≦a≦25mm, 10mm≦a≦20mm, and 10mm≦a≦15mm.

[0064] The range of b is 3mm≦b≦30mm, 3mm≦b≦29mm, 3mm≦b≦28mm, 3mm≦b≦27mm, 3mm≦b≦26mm, 3mm≦b≦25mm, 3mm≦b≦24mm, 3mm≦b≦23mm, 3mm≦b≦22mm, 3mm≦b≦21mm, 3mm≦b≦20mm, 3mm≦b≦19mm, 3mm≦b≦18mm, 3mm≦b≦ It may be any range among 17mm, 3mm≦b≦16mm, 3mm≦b≦15mm, 3mm≦b≦14mm, 3mm≦b≦13mm, 3mm≦b≦12mm, 3mm≦b≦11mm, 3mm≦b≦10mm, 3mm≦b≦9mm, 3mm≦b≦8mm, 3mm≦b≦7mm, 3mm≦b≦6mm, 3mm≦b≦5mm and 3mm≦b≦4mm.

[0065] The range of a and the range of b may be a combination of any of the ranges of a and any of the ranges of b described above.

[0066] In some embodiments of the present application, the sum of a and b satisfies the relationship of 20 mm≦a+b≦40 mm.

[0067] In addition, the range of a+b may be any of the following ranges: 20mm≦a+b≦40mm, 25mm≦a+b≦40mm, 25mm≦a+b≦35mm, 25mm≦a+b≦30mm, 30mm≦a+b≦40mm, 30mm≦a+b≦35mm, and 35mm≦a+b≦40mm.

[0068] As shown in Fig. 2, in some embodiments of the present application, preferably, a = 20 mm and b = 10 mm. In this case, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 188 μm. As is clear from Table 1, the wrinkle depth of the electrochromic film 100 is 17 mm-18 mm.

[0069] Table 1 - Change in wrinkle depth of electrochromic membrane 100 [Table 1]

[0070] In Table 1, the thicknesses of both the first conductive substrate 110 and the second conductive substrate 130 are 188 μm.

[0071] Table 1 shows the wrinkle situation in the folding process of the electrochromic membrane 100, with b > 30 mm and a + b > 100 mm as the comparative examples in this embodiment.

[0072] Specifically, in the comparative example of Table 1, when b = 40 mm and a + b > 100 mm, in the process of a decreasing from 95 mm to 65 mm, the wrinkle depth of the electrochromic membrane 100 gradually decreases from 54 mm to 46 mm. In this process, as a decreases, the wrinkle depth of the electrochromic membrane 100 gradually decreases, but all the numerical values of the wrinkle depth are 46 mm or more, still indicating a large value.

[0073] It can be understood that when a + b > 100 mm, the improvement of the wrinkle depth of the electrochromic film 100 with the change of a is small.

[0074] At the same time, Table 1 shows the state of change of the wrinkle depth at the edge of the electrochromic membrane 100 with the gradual decrease of a and b when 0 < a + b ≤ 100 mm and 0 < b ≤ 30 mm in this embodiment.

[0075] Specifically, in this embodiment, when 0 < a + b ≤ 100 mm, as the numerical values of a and b gradually decrease, the wrinkle depth of the electrochromic membrane 100 gradually decreases, and all the wrinkle depths are 43 mm or less. In this application, it can be understood that the wrinkle depth of the electrochromic membrane 100 decreases with the decrease of the numerical values of a and b, that is, the wrinkle depth of the electrochromic membrane 100 can be improved with the change of the numerical values of a and b.

[0076] As can be seen from Table 1, when the thicknesses of both the first conductive substrate 110 and the second conductive substrate 130 are 188 μm and 20 mm < a + b ≤ 40 mm, the wrinkle depth of the electrochromic membrane 100 is maintained at a low value of 17 mm - 18 mm. It can be understood that when 20 mm < a + b ≤ 40 mm, the improvement effect on the wrinkle depth of the electrochromic membrane 100 is the highest.

[0077] As can be seen from the test data shown in Table 1, the wrinkle depths in the examples are all smaller than the values of the wrinkle depths in the comparative examples. That is, when 0 < a + b ≤ 100 mm, as a and b gradually decrease, the improvement effect on the wrinkle depth of the electrochromic membrane 100 is good.

[0078] To summarize the above, when the thicknesses of both the first conductive substrate 110 and the second conductive substrate 130 are 188 μm and 0 < a + b ≤ 40 mm, the improvement of the wrinkle depth of the electrochromic membrane 100 is the best.

[0079] Table 2 - Changes in the wrinkle depth of the electrochromic membrane 100

Table 2

[0080] Note that in Table 2, a = 20 mm and b = 20 mm.

[0081] Table 2 shows the comparative examples and examples of the wrinkle depth of the electrochromic membrane 100 when a = 20 mm and b = 20 mm. Specifically, in the comparative examples of Table 2, the thicknesses of both the first conductive substrate 110 and the second conductive substrate 130 are smaller than 120 μm. As the thicknesses of the first conductive substrate 110 and the second conductive substrate 130 gradually increase, the value of the wrinkle depth of the electrochromic membrane 100 gradually decreases. However, at this time, the wrinkle depth is still 120 mm or more, that is, the value of the wrinkle depth of the electrochromic membrane 100 is large.

[0082] In the examples of Table 2, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 120 μm or more. At the same time, as the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 gradually increase, the wrinkle depth value of the electrochromic membrane 100 gradually decreases.

[0083] Specifically, when the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 increase from 125 mm to 150 mm, the wrinkles of the electrochromic membrane 100 decrease by 50 mm.

[0084] In some embodiments of the present application, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 120 μm or more, and as can be appreciated, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 may be any value among 125 μm, 130 μm, 135 μm, 140 μm, 145 μm, 150 μm, 155 μm, 160 μm, 165 μm, 170 μm, 175 μm, 180 μm, 185 μm, 188 μm, 190 μm, 195 μm, and 200 μm.

[0085] Also, as can be seen from Table 2, when the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are increased from 150 μm to 188 μm, the wrinkle depth of the electrochromic membrane 100 decreases by 41 mm, and at this time, the wrinkle depth of the electrochromic membrane 100 is 19 mm.

[0086] It can be seen from Table 2 that in the process in which the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 gradually increase from 120 μm to 188 μm, the wrinkle depth of the electrochromic membrane 100 decreases from 110 mm to 19 mm, and the wrinkle depth of the electrochromic membrane 100 is significantly reduced. Specifically, the ratio of the increase in thickness to the change in wrinkle depth is about 0.75, which is smaller than 1, that is, for every 1 μm increase in the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130, the decrease in the wrinkle depth of the electrochromic membrane 100 is greater than 1 mm. At this time, it can be seen that the change in the thickness of the first conductive substrate 110 and the second conductive substrate 130 has a large effect on the electrochromic membrane 100, that is, the wrinkle depth of the electrochromic membrane 100 can be significantly improved with the increase in the thickness of the first conductive substrate 110 and the second conductive substrate 130.

[0087] Also, as can be seen from Table 2, in the process in which the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 gradually increase from 188 μm to 250 μm, the wrinkle depth of the electrochromic membrane 100 decreases from 19 mm to 15 mm. In this process, the ratio of the increase in thickness to the change in wrinkle depth is 15.5, which is much larger than 1, that is, for every 1 μm increase in the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130, the decrease in the wrinkle depth of the electrochromic membrane 100 is much smaller than 1 mm. At this time, it can be seen that the effect of the change in the thickness of the first conductive substrate 110 and the second conductive substrate 130 on the wrinkle depth of the electrochromic membrane 100 is very small, that is, the change in the wrinkle depth of the electrochromic membrane 100 is very small with the increase in the thickness of the first conductive substrate 110 and the second conductive substrate 130.

[0088] As can be seen from Table 2, in the process in which the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 gradually increase from 250 μm to 400 μm, the wrinkle depth of the electrochromic membrane 100 is less than 15 mm. In this process, it can be seen that the ratio of the increase in thickness to the change in wrinkle depth is greater than 10, and much greater than 1. In this process, it can be seen that the effect of the change in thickness of the first conductive substrate 110 and the second conductive substrate 130 on the wrinkle depth of the electrochromic membrane 100 is very small.

[0089] Specifically, when the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 188 mm, the thicknesses of the first conductive substrate 110 and the second conductive substrate 130 are gradually increased, and the change in wrinkle depth of the electrochromic membrane 100 is small. At this time, it can be understood that the influence on wrinkle improvement due to the increase in the thickness of the first conductive substrate 110 and the second conductive substrate 130 is very small. Therefore, in this application, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 188 mm.

[0090] Preferably, in some embodiments of the present application, the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both 150 μm or more. It can be understood that the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 may be any value among 150 μm, 152 μm, 154 μm, 156 μm, 157 μm, 160 μm, 162 μm, 164 μm, 166 μm, 168 μm, 170 μm, 172 μm, 174 μm, 176 μm, 178 μm, 180 μm, 182 μm, 184 μm, 186 μm, 188 μm, 190 μm, 192 μm, 194 μm, 196 μm, 198 μm, and 200 μm, and may be specifically set according to the actual situation.

[0091] In some embodiments of the present application, the electrochromic membrane 100 has an arrow height H1 along a first direction, and an arrow height H2 along a second direction. The product of H1 and H2 satisfies the relation H1×H2≦2500 mm2.

[0092] Specifically, the arrow height H1 is the curvature height in a first direction of the electrochromic membrane 100 having a length of 1 meter, and the arrow height H2 is the curvature height in a second direction of the electrochromic membrane 100 having a length of 1 meter.

[0093] Here, the first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the thickness direction of the electrochromic membrane 100.

[0094] Here, H1×H2≦2500 mm2 means H1×H2≦2500 mm2 per square meter of the electrochromic membrane 100.

[0095] Specifically, the range of H1×H2 is H1×H2≦2500mm2, H1×H2≦2400mm2, H1×H2≦2300mm2, H1×H2≦2200mm2, H1×H2≦2100mm2, H1×H2≦2000mm2, H1×H2≦1900mm2, H1×H2≦1800mm2, H1×H2≦1700mm2, H1×H2≦1600mm2, H1×H2≦1500mm2, H1×H2≦1400mm2, H1× It may be any range among H2≦1300mm2, H1×H2≦1200mm2, H1×H2≦1100mm2, H1×H2≦1000mm2, H1×H2≦900mm2, H1×H2≦800mm2, H1×H2≦700mm2, H1×H2≦600mm2, H1×H2≦500mm2, H1×H2≦400mm2, H1×H2≦300mm2, H1×H2≦200mm2 and H1×H2≦100mm2.

[0096] By reducing the arrow height of the electrochromic membrane 100 in the first direction and the second direction, wrinkles that occur at the edges of the electrochromic membrane 100 are alleviated or wrinkles that occur at the edges of the electrochromic membrane 100 are eliminated, thereby improving the aesthetics of the electrochromic membrane 100.

[0097] In some embodiments of the present application, the shape of the electrochromic membrane 100 may be any one of a polygon, a regular polygon, and an irregular shape, and can be specifically set according to actual conditions.

[0098] The value of a of the electrochromic membrane 100 can correspond to one value, two values, or multiple values. When the value of a of the electrochromic membrane 100 corresponds to only one value, that is, the width of each of the first grooves 140 and the width of each of the second grooves 150 are equal to each other.

[0099] The value of a corresponds to two values, and the two values ​​corresponding to a are defined as a1 and a2, respectively, where a1 ≠ a2, and the range of values ​​of a1 and a2 is equal to the range of values ​​of a. That is, the width of the first groove 140 and the width of the second groove 150 may be any value of a1 and a2.

[0100] The value of a corresponds to a number of values, and the numbers corresponding to a are defined as a1, a2...an, respectively, where the value of n can be any integer greater than 2, and the range of values ​​of an is equal to the range of values ​​of a.

[0101] It can be understood that the value of the first groove 140 may be any value among a1, a2...an, and the value of the second groove 150 may be any value among a1, a2...an, and may be specifically set according to actual circumstances.

[0102] In addition, the value of b of the electrochromic membrane 100 may correspond to one value or multiple values. In addition, when the value of b of the electrochromic membrane 100 corresponds to only one value, that is, the intervals between the orthogonal projections of any adjacent first groove 140 and second groove 150 on the plane where the electrochromic layer 120 is located are all equal.

[0103] The value of b corresponds to a number of values, and the number of values ​​corresponding to b are defined as b1, b2...bn, where the value of n can be any integer equal to or greater than 2, and the range of the value of bn is equal to the range of the value of b. That is, the interval between the orthogonal projections of any adjacent first groove 140 and second groove 150 on the plane where the electrochromic layer 120 is located can be any value among b1, b2...bn, and can be specifically set according to the actual situation.

[0104] Any wrinkle depth of the electrochromic membrane 100 described in this application refers to the wrinkle depth at the edge of the electrochromic membrane 100.

[0105] As shown in FIGS. 2 and 3, in some embodiments of the present application, a sealant 400 is provided in the circumferential direction of each of the first grooves 140 and in the circumferential direction of each of the second grooves 150 .

[0106] The second conductive substrate 130 is fixed by a sealing layer provided in the circumferential direction of the first groove 140, and the electrochromic layer 120 facing the first groove 140 is isolated from the external air and water, and the first conductive substrate 110 is fixed by a sealing layer provided in the circumferential direction of the second groove 150, and the electrochromic layer 120 facing the second groove 150 is isolated from the external air and water, thereby improving the stability of the electrochromic layer 120.

[0107] It should be noted that the sealant 400 is a high temperature adhesive, which is mainly made of aluminosilicate, inorganic ceramic powder and other components to meet different heat resistance requirements, and has a heat resistance of 200°C to 1800°C.

[0108] As shown in FIG. 2, in some embodiments of the present application, a first bus bar 200 is provided on the edge of the first conductive substrate 110 away from the electrochromic layer 120, and the first bus bar 200 is laminated to the edge of the first conductive substrate 110 away from the electrochromic layer 120.

[0109] Specifically, a portion of first busbar 200 is located in first groove 140, and the first busbar 200 located in first groove 140 forms a "concave" shape in first groove 140, and the portion of first busbar 200 located in first groove 140 adheres to sealant 400 on the inner wall of first groove 140, fixing first busbar 200 via sealant 400, thereby improving the stability of first busbar 200 on first conductive base 110. In addition, the first busbar 200, a portion of which is located at the bottom of first groove 140, is electrically connected to a portion of second conductive layer 133 exposed in first groove 140.

[0110] At the same time, a second bus bar 300 is provided on the edge of the second conductive substrate 130 away from the electrochromic layer 120, and the second bus bar 300 is laminated on the edge of the second conductive substrate 130 away from the electrochromic layer 120.

[0111] Specifically, a portion of the second busbar 300 is located in the second groove 150, and the second busbar 300 located in the second groove 150 forms a "concave" shape in the second groove 150, and the portion of the second busbar 300 located in the second groove 150 adheres to the sealant 400 on the inner wall of the second groove 150, fixing the first busbar 200 via the sealant 400, thereby improving the stability of the first busbar 200 on the first conductive base 110. In addition, the second busbar 300, a portion of which is located at the bottom of the second groove 150, is electrically connected to a portion of the first conductive layer 113 exposed in the second groove 150.

[0112] In addition, by connecting the first bus bar 200 and the second bus bar 300 to an external power supply, an applied electric field is formed between the first conductive layer 113 and the second conductive layer 133, so that the electrochromic layer 120 in the electrochromic membrane 100 undergoes a stable, reversible color change due to the applied electric field.

[0113] Another embodiment of the present application further provides a color-changing glass comprising a glass layer and the electrochromic membrane 100 described in any of the above embodiments.

[0114] Here, the electrochromic membrane 100 is laminated between at least two of the glass layers.

[0115] In this embodiment, the electrochromic membrane 100 is laminated between two layers of glass to form a color changing glass.

[0116] It should be noted that the two glass layers completely cover the electrochromic membrane 100 .

[0117] In all examples shown and described herein, any specific values ​​should be construed as merely exemplary and not limiting, and thus other instances of the example embodiments may have different values.

[0118] In addition, in the following drawings, the same symbols and letters indicate similar items, so that once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0119] The above examples only show some embodiments of the present application, and the description is specific and detailed, but does not limit the scope of the present application. However, those skilled in the art may make some modifications and improvements without departing from the concept of the present application, and all of these are within the scope of protection of the present application.

Claims

1. 1. An electrochromic membrane comprising: a first conductive substrate, an electrochromic layer, and a second conductive substrate, which are laminated in sequence; a first receiving groove is provided on an edge of the first conductive substrate, a second receiving groove is provided on an edge of the second conductive substrate, and two or more third receiving grooves are provided on an edge of the electrochromic layer; The orthogonal projection of the first accommodating groove on a plane on which the electrochromic layer is located overlaps at least one of the third accommodating grooves, and the first accommodating groove and the third accommodating groove communicate with each other to form a first concave groove; The second accommodating groove is orthogonally projected on a plane on which the electrochromic layer is located and overlaps at least one of the third accommodating grooves, and the second accommodating groove and the third accommodating groove communicate with each other to form a second recessed groove; The first grooves and the second grooves are alternately provided on the edge of the electrochromic membrane; The width of the first groove and the width of the second groove are both a, and the distance between the orthogonal projection of any adjacent first groove and second groove on the plane where the electrochromic layer is located is b, and the sum of a and b satisfies the relationship of 0<a+b≦100 mm. An electrochromic membrane characterized by:

2. 2. The electrochromic membrane according to claim 1, wherein the range of b is 0<b≦30 mm.

3. 2. The electrochromic membrane according to claim 1, wherein the range of b is 2 mm≦b≦30 mm.

4. 2. The electrochromic membrane according to claim 1, wherein the range of a is 10 mm≦a≦40 mm, and the range of b is 3 mm≦b≦30 mm.

5. 2. The electrochromic membrane according to claim 1, wherein the sum of a and b satisfies the relationship: 20 mm≦a+b≦40 mm.

6. 2. The electrochromic membrane according to claim 1, wherein the thickness of the first conductive substrate and the thickness of the second conductive substrate are both 120 [mu]m or more.

7. 2. The electrochromic membrane according to claim 1, wherein the depth of the first groove and the depth of the second groove are both h, and 0<h≦100 mm.

8. The electrochromic membrane has a height H along a first direction. １ and the height of the electrochromic membrane along the second direction is H ２ wherein said H １ and the above H ２ The product of this is H １ ×H ２ ≦2500mm ２ and the first direction is perpendicular to the second direction.

2. The electrochromic membrane according to claim 1 .

9. a first bus bar is provided on an edge of the first conductive substrate away from the electrochromic layer; a portion of the first bus bar is located in the first groove and is electrically connected to the second conductive base; a second bus bar is provided on an edge of the second conductive substrate away from the electrochromic layer; A portion of the second bus bar is located within the second groove and is electrically connected to the first conductive base.

2. The electrochromic membrane according to claim 1 .

10. A glass layer and an electrochromic membrane according to any one of claims 1 to 9, The electrochromic membrane is laminated between at least two of the glass layers. A discolored glass characterized by

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