CN114442395B - Electrochromic device, electrode structure and preparation method thereof, glass assembly and vehicle - Google Patents
Electrochromic device, electrode structure and preparation method thereof, glass assembly and vehicle Download PDFInfo
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- CN114442395B CN114442395B CN202210093908.6A CN202210093908A CN114442395B CN 114442395 B CN114442395 B CN 114442395B CN 202210093908 A CN202210093908 A CN 202210093908A CN 114442395 B CN114442395 B CN 114442395B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
- G02F1/155—Electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
Abstract
The invention relates to an electrochromic device, an electrode structure and a preparation method thereof, a glass assembly and a vehicle, comprising: an electrode layer for lamination on the electrochromic layer; the conductive belt comprises a belt body part and an extension part which are electrically connected with each other, the belt body part is arranged from the proximal end of the electrode layer to the distal end of the electrode layer, the extension part extends out of the electrode layer, and a strength improving layer is arranged on the extension part. The conductive tape is directly designed to include the tape body portion and the extension portion without requiring an external lead structure to achieve an electrical connection relationship. On the one hand, the structure is simplified, and on the other hand, the interface resistance is reduced. Based on the fact that the extension for the external circuit is directly part of the conductive strip, there are cases where the mechanical strength is low compared to the external lead structure. Based on the structure, the strength improving layer is further arranged on the extension part, the extension part is protected, and bending, breakage and the like in the assembly or transportation process are avoided.
Description
Technical Field
The invention relates to the technical field of electrochromic devices, in particular to an electrochromic device, an electrode structure and a preparation method thereof, a glass assembly and a vehicle.
Background
An electrochromic device is a device which can generate stable and reversible color change under the action of an external electric field by utilizing electrochromic materials, so that the color and the transparency can be changed reversibly from the appearance. The light-adjustable glass can be widely applied to the occasions such as light-adjustable glass. The electrode structure in an electrochromic device is then a structure for providing a current (electric field) to the electrochromic material layer. Currently, the electrochromic material layer is arranged on the electrode layer, and as the transparent electrode layer usually has a certain sheet resistance, a great voltage drop can be brought in the working process of the electrochromic device, so that the color change response of a region far away from the current access point is slow. Thus, the introduction of a long current lead with good conductivity directs the applied current (electric field) to the distal end with minimal voltage drop. In order to improve the synchronicity of the color-changing response of each area of the electrochromic material layer, a long strip-shaped conductive belt with higher conductivity is generally arranged on the electrode layer, and the conductive belt extends from the proximal end to the distal end of the transparent electrode layer so as to lead the externally applied current to the distal end in a mode of extremely small voltage drop. The general conductive belt has thin thickness and lower mechanical strength, is not bending-resistant, cannot be used for being directly connected with an external circuit, and can be externally connected with a conductive structure with higher strength in the manufacturing process of the traditional electrochromic device to connect the conductive belt to the external circuit. However, the external conductive structure will lead to a complex overall structure and increase the interface resistance.
Disclosure of Invention
Aiming at the problems that the integral structure is complex and the interface resistance is increased when the mechanical strength is ensured, the invention provides an electrochromic device, an electrode structure and a preparation method thereof, a glass assembly and a vehicle, and the mechanical strength can be ensured under the condition that the structure is simplified and the interface resistance is effectively reduced.
An electrode structure of an electrochromic device, comprising:
an electrode layer for lamination on the electrochromic layer;
the conductive belt comprises a belt body part and an extension part which are electrically connected with each other, the belt body part is arranged from the proximal end of the electrode layer to the distal end of the electrode layer, the extension part extends out of the electrode layer, and a strength improving layer is arranged on the extension part.
The above scheme provides an electrode structure of an electrochromic device, and the conductive tape is designed to comprise the tape body part and the extension part, so that an electrical connection relation is realized without externally connecting a lead structure. On the one hand, the structure is simplified, and on the other hand, the interface resistance is reduced. Based on the fact that the extension for the external circuit is directly part of the conductive strip, there are cases where the mechanical strength is low compared to the external lead structure. Based on the structure, the strength improving layer is further arranged on the extension part, so that the extension part is protected, and bending or/and breakage and the like in the assembly or transportation process are avoided.
In one embodiment, at least a portion of the strength enhancing layer and the electrode layer are on the same side of the conductive strip;
and/or at least part of the strength-enhancing layer and the electrode layer are located on opposite sides of the conductive strip.
In one embodiment, the peel strength between the strength enhancement layer and the extension is not less than 0.02N/mm;
and/or the strength-enhancing layer extends out of the extension, and the extension length of the strength-enhancing layer extending out of the extension is not more than 3mm.
In one embodiment, the thickness of the electrode layer is H, at least a portion of the strength enhancing layer and the electrode layer are located on the same side of the conductive strip, and the portion of the strength enhancing layer located on the same side as the electrode layer is a strength enhancing layer a, where the thickness of the strength enhancing layer a is not greater than 2×h.
In one embodiment, at least a portion of the strength-enhancing layer and the electrode layer are on the same side of the conductive strip, and the portion of the strength-enhancing layer on the same side as the electrode layer is strength-enhancing layer a, which partially covers the electrode layer, and the depth of coverage of the strength-enhancing layer a onto the electrode layer is no greater than 3mm.
In one embodiment, at least one of the side surface of the conductive strip and the side surface of the conductive strip facing away from the electrode layer is further provided with a functional layer, at least part of the strength enhancing layer and the electrode layer are located on the opposite side of the conductive strip, the strength enhancing layer located on the opposite side of the electrode layer is a strength enhancing layer B, and the thickness of the strength enhancing layer B is not greater than the height of the functional layer protruding out of the conductive strip, and/or the strength enhancing layer B is bonded with the functional layer.
In one embodiment, the strength-enhancing layer is an insulating layer, and the extension is at least partially exposed outside the strength-enhancing layer;
alternatively, the strength-enhancing layer includes a conductive portion electrically connected to the epitaxial portion, and the conductive portion extends to a surface of the strength-enhancing layer that is not in contact with the epitaxial portion;
alternatively, the strength-enhancing layer contains conductive particles therein.
In one embodiment, the strength-enhancing layer is a flat membrane, or the strength-enhancing layer is a hollow-out structure layer, or the strength-enhancing layer is a spinning structure layer.
In one embodiment, the electrode layer comprises a transparent conductive layer and a transparent substrate, and the transparent substrate and the belt body part are respectively positioned at two sides of the transparent conductive layer;
and/or the mechanical strength properties of the belt body portion and the extension portion are consistent;
and/or the strength-enhancing layer comprises a layer of self-healing material.
An electrochromic device comprising an electrochromic layer and an electrode structure of the electrochromic device described in any of the embodiments above, the electrode layer of the electrode structure being laminated on the electrochromic layer.
The scheme provides an electrochromic device, and by adopting the electrode structure of the electrochromic device in any embodiment, the structure can be simplified, the interface resistance can be reduced, and the mechanical strength of the position of an external circuit can be ensured.
A glass assembly comprises a first glass, a second glass and the electrochromic device, wherein the electrochromic device is clamped between the first glass and the second glass.
The above scheme provides a glass assembly, be equipped with the electrochromic device of arbitrary embodiment in the aforesaid between first glass and the second glass to can simplify the structure, reduce interface resistance, also can ensure the mechanical strength of external circuit position.
A vehicle comprises the glass assembly.
The above scheme provides a vehicle, and the vehicle is provided with the glass assembly, so that the color or transparency of the glass can be adjusted according to the requirement. Furthermore, the electrochromic device in the glass assembly is based on the electrochromic device in the embodiment, so that the glass assembly has the characteristics of simple structure and reduced interface resistance, and the mechanical strength of the external circuit position is ensured.
A method for preparing an electrode structure of an electrochromic device, comprising the steps of:
processing the conductive tape into a shape including a tape body portion and an extension portion electrically connected to each other;
arranging the band body portion in a proximal to distal direction of an electrode layer and ensuring that the extension extends outside the electrode layer;
an intensity enhancing layer is disposed on the epitaxial portion.
The above scheme provides a method for manufacturing an electrode structure of an electrochromic device, in which a conductive tape is directly cut into a shape including the tape body portion and the extension portion, and then the tape body portion is disposed on an electrode layer, so that the extension portion extends outside the electrode layer for external connection, and then a strength enhancing layer is disposed on the extension portion. The electrode structure prepared in this way has the characteristics of simple structure, reduced interface resistance and strength meeting the requirements of an external circuit.
In one embodiment, the step of forming the conductive strip into a shape including a strip body portion and an extension portion electrically connected to each other specifically includes:
cutting a conductive belt into a strip shape, wherein the conductive belt is divided into a belt body part and an extension part in the length direction of the conductive belt;
and/or, the step of disposing a strength enhancing layer on the epitaxial portion specifically includes:
and coating the strength-improving layer stock solution on the epitaxial part, and forming the strength-improving layer after curing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of an electrode structure of a conventional electrochromic device;
FIG. 2 is a front view of the electrode structure of FIG. 1;
FIG. 3 is a top view of the electrode structure according to the present embodiment;
FIG. 4 is a front view of the electrode structure shown in FIG. 3;
FIG. 5 is a top view of another embodiment of an electrode structure;
FIG. 6 is a front view of the electrode structure of FIG. 5;
FIG. 7 is a front view of an electrode structure according to yet another embodiment;
FIG. 8 is a front view of an electrode structure according to yet another embodiment;
FIG. 9 is a front view of the electrode structure with an intensity enhancing layer overlying the electrode layer;
FIG. 10 is a bottom view of the electrode structure of FIG. 9;
FIG. 11 is a front view of the electrode structure when the strength enhancing layer is bonded to the functional layer;
fig. 12 is a bottom view of the electrode structure of fig. 11.
Reference numerals illustrate:
10. an electrode structure; 11. an electrode layer; 12. a conductive tape; 121. a belt body portion; 122. an extension part; 13. a strength enhancing layer; 14. a functional layer; 20. and (5) a lead structure.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 and 2, the conductive strip 12 in the electrode structure 10 in the conventional electrochromic device is generally only covered on the electrode layer 11, and the conductive strip 12 has a small thickness and is easy to bend and break, based on which a circuit is externally connected by additionally providing a lead structure 20 on the conductive strip 12. Although the mechanical strength and bending resistance of the additional lead structure 20 are better, and the requirement of the external circuit can be met, the overall structure is complex, and the interface resistance is increased.
Based thereon, as shown in fig. 3 to 12, in one embodiment, there is provided an electrode structure 10 of an electrochromic device, comprising:
an electrode layer 11, the electrode layer 11 being for lamination on the electrochromic layer;
the conductive tape 12, the conductive tape 12 includes a tape body 121 and an extension 122 electrically connected to each other, the tape body 121 is disposed from a proximal end of the electrode layer 11 to a distal end of the electrode layer 11, the extension 122 extends out of the electrode layer 11, and the extension 122 is provided with a strength enhancing layer 13.
In the electrode structure 10 of an electrochromic device provided in the above-mentioned aspect, the conductive tape 12 is directly designed to include the tape body 121 and the extension 122, and no external lead structure 20 is needed to be connected to achieve an electrical connection relationship. On the one hand, the structure is simplified, and on the other hand, the interface resistance is reduced. Based on the fact that the extension 122 for the external circuit is directly part of the conductive strip 12, there are cases where the mechanical strength is low with respect to the external lead structure 20. Based on this, the strength-improving layer 13 is further disposed on the extension portion 122, so as to protect the extension portion 122, and thus, bending or/and breaking during the assembly or transportation process can be avoided.
Specifically, in some embodiments, the mechanical strength properties of the belt body portion 121 and the extension portion 122 remain consistent or substantially comparable. Generally, the thickness of the belt body 121 is smaller, the bending resistance is worse, the mechanical strength of the extension 122 is consistent with that of the extension 122, and the strength enhancing layer 13 may be further provided to enhance the mechanical strength of the portion where the extension 122 belongs.
More specifically, in some embodiments, the belt body 121 and the extension 122 may be made of the same material, but not limited to, but may be made of different materials. The cross-sectional area of the conductive strip 12 may be uniform, or progressively increasing, etc. Optionally, the conductive tape 12 is made of uniform material and has uniform continuity throughout, and the conductive tape 12 is processed into a pattern including the tape body 121 and the extension 122, so that the extension 122 extends out of the electrode layer 11 when the tape body 121 is connected to the electrode layer 11.
The conductive tape 12 may be a metal foil tape. In particular, the conductive tape 12 may be a copper foil tape, an aluminum foil tape, or a tin-plated copper foil tape.
Further, in some embodiments, as shown in fig. 3-12, at least a portion of the strength-enhancing layer 13 and the electrode layer 11 are on the same side of the conductive strip 12;
and/or at least part of the strength-enhancing layer 13 and the electrode layer 11 are located on opposite sides of the conductive strip 12.
In particular, as shown in fig. 3 and 4, in some embodiments, all of the strength-enhancing layers 13 are on the same side of the conductive strip 12 as the electrode layer 11.
Alternatively, in other embodiments, as shown in fig. 5 and 6, all of the strength enhancing layers 13 are located on opposite sides of the conductive strip 12 from the electrode layer 11.
Alternatively, as shown in fig. 7 and 8, a portion of the strength-enhancing layer 13 is on the same side of the conductive tape 12 as the electrode layer 11, and another portion of the strength-enhancing layer 13 is on the opposite side of the conductive tape 12 as the electrode layer 11.
Further specifically, the strength-enhancing layer 13 is a strength-enhancing layer a at the portion on the same side as the electrode layer 11. The portion of the strength-enhancing layer 13 located on the opposite side from the electrode layer 11 is a strength-enhancing layer B.
Further, in some embodiments, as shown in fig. 3 to 6, when the strength enhancing layer 13 is disposed on one surface of the extension portion 122, other surfaces of the extension portion 122 are exposed, and may be used as electrical connection points of an external circuit.
Alternatively, in other embodiments, as shown in fig. 7 and 8, when the strength-enhancing layer 13 is provided on both the upper and lower surfaces of the extension 122, the strength-enhancing layer 13 may be designed such that at least a portion of the extension 122 can be exposed. Thereby utilizing the exposed portion of the extension 122 as an electrical connection point.
Further, in one embodiment, the strength enhancing layer 13 is an insulating layer. The extension 122 is at least partially exposed outside the strength-enhancing layer 13. The insulating layer can insulate and protect the extension 122, and the exposed portion of the extension 122 serves as an electrical connection point.
It should be noted that, the strength-enhancing layer 13 may be a structural layer that can be partially removed by heat fusion or other methods, and the electrode structure 10 may be configured such that the strength-enhancing layer 13 completely covers the extension 122 before being assembled and used. When in assembly and use, part of the structure of the strength enhancing layer 13 is removed by hot melting or other methods as required, so that the extension part 122 is partially exposed and electrically connected with an external circuit.
Alternatively, in other embodiments, the strength enhancing layer 13 includes conductive portions. The conductive portion is electrically connected to the extension 122, and extends to a surface of the strength enhancing layer 13 which is not in contact with the extension 122. Therefore, the strength enhancing layer 13 not only can enhance the mechanical strength of the portion of the epitaxial portion 122, but also can realize an electrical connection relationship with an external circuit through the conductive portion.
Still alternatively, in other embodiments, the strength enhancing layer 13 includes conductive particles therein. The strength enhancing layer 13 has a certain conductivity, so that the extension 122 can be electrically connected to an external circuit.
Further, in one embodiment, the peel strength between the strength-enhancing layer 13 and the extension 122 is not less than 0.02N/mm, so as to ensure that the strength-enhancing layer 13 can be reliably connected to the extension 122, and protect it.
Further, in some embodiments, as shown in fig. 9-12, the strength-enhancing layer 13 extends beyond the extension 122.
Specifically, in some embodiments, the strength-enhancing layer 13 extends no more than 3mm beyond the extension 122. The strength-enhancing layer 13 thus provides a more comprehensive protection for the extension 122 while controlling the cost of materials.
Further specifically, in one embodiment, as shown in fig. 3, 4, 9 and 10, the thickness of the electrode layer 11 is H, and the thickness of the strength-enhancing layer a is not greater than 2×h.
In other words, when the strength-enhancing layer 13 and the electrode layer 11 are located on the same side of the conductive tape 12, the thickness of the strength-enhancing layer 13 cannot be excessively thick so as not to affect the subsequent mounting. In particular, when the electrochromic device is used in laminated glass, the electrode structure 10 is at least partially sandwiched between two glasses, which would be damaged if the strength-enhancing layer 13 were too thick.
Similarly, in one embodiment, as shown in fig. 11 and 12, at least one of the side surface of the conductive strip 12 on the electrode layer 11 and the side surface of the conductive strip 12 facing away from the electrode layer 11 is further provided with a functional layer 14. The thickness of the strength-enhancing layer B is not greater than the height of the functional layer 14 protruding from the conductive tape 12.
Further, in one embodiment, as shown in fig. 9 and 10, the strength-enhancing layer a partially covers the electrode layer 11. And the depth of the strength-improving layer a to the electrode layer 11 is not more than 3mm.
The strength-enhancing layer a is coated on the electrode layer 11, and can indirectly connect the electrode layer 11 and the extension portion 122, thereby further defining the relative position of the extension portion 122 and the electrode layer 11 and protecting the extension portion 122. The depth here refers to the depth L length by which the strength enhancing layer 13 extends onto the electrode layer 11 as shown in fig. 9.
Further, in some embodiments, the thickness of the portion of the strength-enhancing layer a overlying the electrode layer 11 is not greater than the thickness H of the electrode layer 11.
Further, as shown in fig. 11 and 12, in one embodiment, at least one of the side surface of the conductive strip 12 on the electrode layer 11 and the side surface of the conductive strip 12 facing away from the electrode layer 11 is further provided with a functional layer 14. The strength enhancing layer B is bonded to the functional layer 14.
The strength-enhancing layer B is bonded to the functional layer 14, and indirectly connects the epitaxial portion 122 and the functional layer 14.
Further, in one embodiment, the strength-enhancing layer 13 comprises a polymer matrix, thereby providing the strength-enhancing layer 13 with higher strength and toughness.
In particular, the strength-enhancing layer 13 comprises a thermoset or thermoplastic polymer. For example, the polymer may be a polyacrylate, an epoxy, a polyurethane, a polyether, or a polyethylene terephthalate.
When the electrode structure 10 is used in laminated glass, the glass transition temperature of the strength-enhancing layer 13 is not lower than 140 ℃ in order to accommodate the production process of laminated glass.
Further, in some embodiments, the strength-enhancing layer 13 includes a self-repairing material layer, and has self-repairing capability, thereby further enhancing durability. The strength-enhancing layer 13 can be automatically repaired when fine abrasion or breakage occurs by virtue of van der Waals forces, hydrogen bonds, dynamic covalent bonds, etc. among molecules of the material.
Specifically, in some embodiments, the repair duration is no greater than 90s.
Further, in one embodiment, there is provided a method for manufacturing an electrode structure of an electrochromic device, characterized by comprising the steps of:
processing the conductive tape into a shape including a tape body portion and an extension portion electrically connected to each other;
arranging the band body portion in a proximal to distal direction of an electrode layer and ensuring that the extension extends outside the electrode layer;
an intensity enhancing layer is disposed on the epitaxial portion.
The conductive tape 12 is directly processed into a shape including the tape body portion 121 and the extension portion 122, and then the tape body portion 121 is disposed on the electrode layer 11 such that the extension portion 122 extends to the outside of the electrode layer 11 for external circuit, and then the strength enhancing layer 13 is disposed on the extension portion 122. The electrode structure 10 prepared in this way has the characteristics of simple structure, reduced interface resistance and strength meeting the requirements of an external circuit.
In these embodiments as shown in fig. 3 to 12, the conductive tape 12 is in the form of a strip, and when the conductive tape 12 is disposed on the electrode layer 11, a portion of the conductive tape 12 extends outside the electrode layer 11. The portion disposed on the electrode layer 11 is the belt body portion 121, and the portion extending to the outside of the electrode layer 11 is the extension portion 122.
Specifically, the conductive tape 12 may be processed into the above-described shape by cutting, laser etching, embossing, spraying, or the like.
Specifically, in some embodiments, the step of processing the conductive strip into a shape comprising a strip body portion and an extension portion electrically connected to each other specifically comprises:
cutting the conductive belt into a strip shape, and dividing the conductive belt into a belt body part and an extension part in the length direction of the conductive belt.
Preferably, the length of this strip is greater than the length of the electrode layer.
Further, during the manufacturing process, the strength-enhancing layer 13 may be disposed on the epitaxial portion 122 by coating. The strength-enhancing layer material is pre-coated on the epitaxial portion 122 before being cured, and the strength-enhancing layer 13 is formed after being cured.
Specifically, the conductive tape 12 may be first placed on a platform such as a polytetrafluoroethylene plate, and the raw material in a flowing state is coated on the conductive tape 12, so that the raw material flows to cover the extension portion 122, and after curing, the strength-improving layer 13 covering the extension portion 122 is formed.
Further, the material having a slightly lower viscosity is preferably disposed on the extension 122 by spraying, and the material having a higher viscosity is preferably disposed on the extension 122 by knife coating.
Alternatively, in other embodiments, the strength-enhancing layer 13 may be a solid structure that has been molded, and may be thermally pressed or otherwise secured to the extension 122.
Further, in some embodiments, the strength enhancing layer 13 is a flat membrane.
Optionally, in other embodiments, the strength-enhancing layer 13 is a hollow-out structural layer, or the strength-enhancing layer 13 is a spinning structural layer. When other structures are required to be adhered later, the strength-improving layer 13 preferably adopts a hollow structure or a spinning structure, so that the adhesive strength of the adhesive can be increased.
Further, in one embodiment, the electrode layer 11 includes a transparent conductive layer and a transparent base material, and the transparent base material and the belt body portion 121 are respectively located at both sides of the transparent conductive layer. The color change and the transparency change of the electrochromic layer can be observed through the electrode layer 11.
Further, in yet another embodiment, an electrochromic device is provided comprising an electrochromic layer and an electrode structure 10 of the electrochromic device described in any of the embodiments above, said electrode layer 11 of said electrode structure 10 being laminated on said electrochromic layer.
According to the electrochromic device provided by the scheme, the electrode structure 10 of the electrochromic device in any embodiment is adopted, so that the structure can be simplified, the interface resistance can be reduced, and the mechanical strength of the position of an external power supply can be ensured.
In yet another embodiment, a glass assembly is provided that includes a first glass, a second glass, and an electrochromic device as described above, the electrochromic device being sandwiched between the first glass and the second glass.
According to the glass assembly provided by the scheme, the electrochromic device in any embodiment is arranged between the first glass and the second glass, so that the structure can be simplified, the interface resistance is reduced, and the mechanical strength of an external circuit position can be ensured.
Still another embodiment provides a vehicle comprising the glass assembly described above.
The glass assembly is arranged on the vehicle, so that the color or transparency of the glass can be adjusted according to the requirement. Furthermore, the electrochromic device in the glass assembly is based on the electrochromic device in the embodiment, so that the glass assembly has the advantages of simplified structure and reduced interface resistance, and the mechanical strength of the external circuit position is ensured.
In the description of the present invention, it should be understood that the terms "length," "width," "thickness," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (14)
1. An electrode structure of an electrochromic device, comprising:
an electrode layer for lamination on the electrochromic layer;
the conductive belt comprises a belt body part and an extension part which are electrically connected with each other, the belt body part is arranged from the proximal end of the electrode layer to the distal end of the electrode layer, the extension part extends out of the electrode layer, a strength improving layer is arranged on the extension part, and the peeling strength between the strength improving layer and the extension part is not less than 0.02N/mm.
2. The electrode structure of an electrochromic device according to claim 1, wherein at least part of said strength enhancing layer and said electrode layer are located on the same side of said conductive tape;
and/or at least part of the strength-enhancing layer and the electrode layer are located on opposite sides of the conductive strip.
3. The electrode structure of an electrochromic device according to claim 1, wherein the strength enhancing layer extends beyond the extension and the extension of the strength enhancing layer beyond the extension is no more than 3mm.
4. The electrode structure of an electrochromic device according to claim 1, wherein the thickness of the electrode layer is H, at least part of the strength-enhancing layer and the electrode layer are located on the same side of the conductive tape, and the part of the strength-enhancing layer located on the same side as the electrode layer is a strength-enhancing layer a, and the thickness of the strength-enhancing layer a is not greater than 2 x H.
5. The electrode structure of an electrochromic device according to claim 1, wherein at least part of said intensity enhancing layer and said electrode layer are located on the same side of said conductive tape, and the part of the intensity enhancing layer located on the same side as said electrode layer is an intensity enhancing layer a, said intensity enhancing layer a partially covers said electrode layer, and the depth of said intensity enhancing layer a covering said electrode layer is not more than 3mm.
6. The electrode structure of an electrochromic device according to claim 1, wherein at least one of the side of the electrode layer on which the conductive strip is provided and the side of the conductive strip facing away from the electrode layer is further provided with a functional layer, at least part of the strength-enhancing layer and the electrode layer are located on the opposite side of the conductive strip, and the part of the strength-enhancing layer located on the opposite side from the electrode layer is a strength-enhancing layer B, and the thickness of the strength-enhancing layer B is not greater than the height of the functional layer protruding from the conductive strip, and/or the strength-enhancing layer B is bonded with the functional layer.
7. The electrode structure of an electrochromic device according to claim 1, wherein said strength-enhancing layer is an insulating layer, said extension being at least partially exposed outside said strength-enhancing layer;
alternatively, the strength-enhancing layer includes a conductive portion electrically connected to the epitaxial portion, and the conductive portion extends to a surface of the strength-enhancing layer that is not in contact with the epitaxial portion;
alternatively, the strength-enhancing layer contains conductive particles therein.
8. The electrode structure of electrochromic device according to claim 1, characterized in that the strength-enhancing layer is a flat membrane, or the strength-enhancing layer is a hollowed-out structural layer, or the strength-enhancing layer is a spun-structural layer.
9. The electrode structure of an electrochromic device according to any one of claims 1 to 8, wherein the electrode layer comprises a transparent conductive layer and a transparent substrate, the transparent substrate and the tape body portion being located on both sides of the transparent conductive layer, respectively;
and/or the mechanical strength properties of the belt body portion and the extension portion are consistent;
and/or the strength-enhancing layer comprises a layer of self-healing material.
10. An electrochromic device comprising an electrochromic layer and an electrode structure of the electrochromic device of any one of claims 1 to 9, the electrode layer of the electrode structure being laminated on the electrochromic layer.
11. A glass assembly comprising a first glass, a second glass, and the electrochromic device of claim 10, the electrochromic device being sandwiched between the first glass and the second glass.
12. A vehicle comprising the glass assembly of claim 11.
13. A method for preparing an electrode structure of an electrochromic device, comprising the steps of:
processing the conductive tape into a shape including a tape body portion and an extension portion electrically connected to each other;
arranging the band body portion in a proximal to distal direction of an electrode layer and ensuring that the extension extends outside the electrode layer;
and arranging a strength improving layer on the epitaxial part, wherein the peeling strength between the strength improving layer and the epitaxial part is not less than 0.02N/mm.
14. The method for manufacturing an electrode structure of an electrochromic device according to claim 13, wherein,
the step of processing the conductive tape into a shape including a tape body portion and an extension portion electrically connected to each other specifically includes:
cutting a conductive belt into a strip shape, wherein the conductive belt is divided into a belt body part and an extension part in the length direction of the conductive belt;
and/or, the step of disposing a strength enhancing layer on the epitaxial portion specifically includes:
and coating the strength-improving layer stock solution on the epitaxial part, and forming the strength-improving layer after curing.
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| CN202210093908.6A CN114442395B (en) | 2022-01-26 | 2022-01-26 | Electrochromic device, electrode structure and preparation method thereof, glass assembly and vehicle |
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| CN202210093908.6A CN114442395B (en) | 2022-01-26 | 2022-01-26 | Electrochromic device, electrode structure and preparation method thereof, glass assembly and vehicle |
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| CN108873547A (en) * | 2018-07-03 | 2018-11-23 | Oppo广东移动通信有限公司 | Electrochromic device, shell, electronic equipment |
| CN110703530A (en) * | 2019-10-30 | 2020-01-17 | 福耀玻璃工业集团股份有限公司 | Electrochromic automobile glass with electric heating and electromagnetic shielding functions |
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| US6591496B2 (en) * | 2001-08-28 | 2003-07-15 | 3M Innovative Properties Company | Method for making embedded electrical traces |
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| US4375319A (en) * | 1976-09-14 | 1983-03-01 | Sharp Kabushiki Kaisha | Electrochromic display device |
| WO2005076061A1 (en) * | 2004-02-05 | 2005-08-18 | Saint-Gobain Glass France | Transparent window panel with a field of view that can be partially darkened and method of controlling a surface element that can be electrochromically lightened inside a transparent window panel |
| CN104880885A (en) * | 2015-04-30 | 2015-09-02 | 上方能源技术(杭州)有限公司 | Drive mode of electrochromic glass |
| JP2017194536A (en) * | 2016-04-19 | 2017-10-26 | 株式会社カネカ | Dimming element, dimming device, and method for manufacturing dimming element |
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