CN115185130A

CN115185130A - Zoned electrochromic devices

Info

Publication number: CN115185130A
Application number: CN202210982337.1A
Authority: CN
Inventors: 王灿灿; 林寿
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-10-14
Anticipated expiration: 2042-08-16
Also published as: CN115185130B

Abstract

The application discloses a partitioned electrochromic device. The zoned electrochromic device includes: the transparent substrate comprises a first transparent substrate layer, a first conducting layer, an intermediate material layer, a second conducting layer and a second transparent substrate layer which are sequentially stacked, wherein the intermediate material layer comprises an electrochromic material, an electrolyte material and a counter electrode material corresponding to the electrochromic material; at least one of the first conductive layer, the intermediate material layer and the second conductive layer comprises a plurality of subareas, and the conductive materials of the adjacent subareas are different. The resistance of each component, the interface resistance among each layer and the type of electrochromic materials in the partition electrochromic device are adjusted, the electrochromic device is divided into different blocks, various partition grooves do not need to be cut out of the device, and partition of the device can be achieved, so that partition adjustment is achieved. The partition dimming device can effectively realize partition dimming without a partition groove.

Description

Zoned electrochromic devices

Technical Field

The present application relates to a partitioned electrochromic device.

Background

Electrochromism (EC) refers to a phenomenon in which optical properties (reflectivity, transmittance, absorption rate, and the like) of a material are reversibly changed under the action of an external electric field. If the electrochromic technology is applied to automobile glass, the glass can be used as products for dimming, displaying, atmosphere and the like.

The electrochromic device can be made into a device which can be adjusted by regions. Fig. 1 illustrates a conventional partitioning method, and fig. 1 illustrates a partitioning method focusing on partitioning the conductive layer 21 into different blocks 213, 211, and 212 by using a partition groove 214 and a partition groove 215, without electrical connection between the blocks. In order to power on the block 211 and the block 212 surrounded by the block 213, two additional circuits are required, and it is difficult to achieve color-change consistency between the blocks 212 and 213.

Disclosure of Invention

In order to solve the problems in the prior art, the application provides a partitioned electrochromic device, which comprises a first transparent substrate layer, a first conducting layer, an intermediate material layer, a second conducting layer and a second transparent substrate layer which are sequentially stacked, wherein the intermediate material layer comprises an electrochromic material, an electrolyte material and a counter electrode material corresponding to the electrochromic material;

at least one of the first conductive layer, the intermediate material layer and the second conductive layer comprises a plurality of subareas, and the conductive materials of the adjacent subareas are different.

In one embodiment, the electrochromic material, the electrolyte material, and the counter electrode material are mixed into one layer.

In one embodiment, the intermediate material layer comprises:

a counter electrode layer comprising the counter electrode material;

an electrolyte layer comprising the electrolyte material and the electrochromic material.

In one embodiment, the intermediate material layer comprises:

an electrochromic layer comprising the electrochromic material;

an electrolyte layer including the electrolyte material and the counter electrode material.

In one embodiment, the intermediate material layer comprises:

an electrochromic layer comprising the electrochromic material;

an electrolyte layer comprising the electrolyte material;

a counter electrode layer comprising the counter electrode material.

In one embodiment, the first conductive layer and/or the second conductive layer includes a plurality of partitions, and the resistances of adjacent partitions are different.

In an embodiment, the intermediate material layer comprises a plurality of partitions, and the conductivity of the electrolyte material in adjacent partitions is different.

In one embodiment, the electrolyte material in adjacent sections of the intermediate material layer do not contact and a barrier substance is disposed between adjacent sections.

In one embodiment, the thickness of the layer of electrolyte material in adjacent partitions is less than or equal to 300 μm.

In one embodiment, adjacent sections of the layer in which the electrolyte material is located include a plurality of electrolyte materials of different conductivities.

In one embodiment, the intermediate material layer includes a plurality of partitions, adjacent partitions include electrolyte materials with different thicknesses, and a filling material is disposed in each partition to make the thickness of the intermediate material layer uniform.

In one embodiment, the electrochromic layer comprises a plurality of subareas, and at least one of the type, the color, the response voltage, the reaction speed and the thickness of the electrochromic material in the adjacent subareas are different.

In one embodiment, the electrochromic layer includes a plurality of different electrochromic materials in the same zone.

In one embodiment, the interfacial resistance between the layers corresponding to adjacent partitions is different.

The partition electrochromic device divides the electrochromic device into different blocks by adjusting the resistance of each component, the interface resistance among each layer and the type of electrochromic materials in the partition electrochromic device, and can realize partition of the device without cutting various partition grooves into the device, thereby realizing partition adjustment. The partition dimming device can effectively realize partition dimming without a partition groove.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:

fig. 1 is a schematic diagram of a conventional partitioning method of a conductive layer provided in the present application.

Fig. 2-5 are schematic diagrams of zoned electrochromic devices of various configurations provided herein.

Fig. 6 is a schematic view of the first conductive layer shown in fig. 2 to 5 provided in the present application.

Fig. 7A is a schematic view of the intermediate material layer shown in fig. 2 provided in the present application.

Fig. 7B and 7C are alternative schematic views of the intermediate material layer of fig. 2 provided herein.

Fig. 8A to 8C are another schematic views of the intermediate material layer shown in fig. 2 provided in the present application.

Fig. 9A to 9B are schematic views of the electrochromic layer shown in fig. 4 provided in the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

It should be noted that the application field of the partitioned electrochromic device and the manufacturing method thereof is not limited in the present application.

The present application provides a partitioned electrochromic device, as shown in fig. 2, the partitioned electrochromic device includes a first transparent substrate layer 1, a first conductive layer 2, an intermediate material layer 3, a second conductive layer 4, and a second transparent substrate layer 5, which are sequentially stacked.

The intermediate material layer 3 includes an electrochromic material, an electrolyte material, a counter electrode material corresponding to the electrochromic material, and the like. Electrochromic materials are to be understood as electrode materials having an electrochromic function. The counter electrode material is a material which can be matched with the oxidation-reduction potential of the electrochromic material in the electrochromic device to compensate electron gain/loss of the electrochromic material, and can improve the reversibility of the electrochromic device. If the electrochromic material is used as a cathode in the device, the pair of electrode materials can be used as anodes; the electrochromic material serves as an anode in the device, and the pair of electrode materials serves as a cathode. The counter electrode material can be a material with an electrochromic function or a material without an electrochromic function or a material with an ion storage function. The electrolyte material is used to transport ions.

At least one of the first conductive layer 2, the intermediate material layer 3 and the second conductive layer 4 includes a plurality of sections, and conductive materials of adjacent sections are different. The conductive material of each partition of the first conductive layer 2 and the second conductive layer 3 includes, but is not limited to, conductive metal oxide, metal nanowire, metal mesh, metal plating, metal stack, conjugated polymer, etc. It should be noted that the conductive material in the present application refers to a material specifically used for transporting and conducting current, and includes an electron conductive material and an ion conductive material. The difference in the conductive materials means that at least one of the properties of the kind, resistance, conductivity, etc. of the conductive materials is different.

The first transparent substrate layer 1 and the second transparent substrate layer 5 may be the same or different.

In this embodiment, at least one of the first conductive layer 1, the intermediate material layer 3 and the second conductive layer 6 is partitioned, and different conductive materials are disposed in adjacent partitions of the corresponding layers, and the different conductive materials have different conductive properties, such as different characteristics of resistance and conductivity. When the subarea electrochromic device is connected with an external circuit, different subareas can show different color-changing effects due to the difference of the conductivity of different subareas, and the different subareas are set into the required shapes according to actual requirements, so that the subarea electrochromic device can display corresponding patterns.

The present application is applicable to a variety of different configurations of zoned electrochromic devices, such as the one shown in fig. 2, where the electrochromic material, the electrolyte material, and the counter electrode material in fig. 2 are mixed into one layer, forming the intermediate material layer 3. The state of the intermediate material layer 3 in fig. 2 is a flowable or gel state. The structures shown in fig. 3 to 5 are included in addition to the structure shown in fig. 2.

Specifically, the zoned electrochromic device shown in fig. 3 includes: the multilayer solar cell includes a first transparent substrate layer 1, a first conductive layer 2, a counter electrode layer 31, an electrolyte layer 32, a second conductive layer 4, and a second transparent substrate layer 5, which are sequentially stacked. Wherein the counter electrode layer 31 comprises the counter electrode material; the electrolyte layer 32 includes the electrolyte material and the electrochromic material. The counter electrode layer 31 in fig. 3 is in a solid state, and the electrolyte layer 32 is in a flowable or gel state.

The partitioned electrochromic device shown in fig. 4 includes: a first transparent substrate layer 1, a first conductive layer 2, an electrochromic layer 33, an electrolyte layer 34, a second conductive layer 4, and a second transparent substrate layer 5, which are laminated in this order. Wherein the electrochromic layer 33 comprises the electrochromic material; the electrolyte layer 34 includes the electrolyte material and the counter electrode material. The electrochromic layer 33 in fig. 4 is in a solid state, and the state of the electrolyte layer 34 is a flowable or gel state.

The partitioned electrochromic device shown in fig. 5 includes: a first transparent substrate layer 1, a first conductive layer 2, an electrochromic layer 35, an electrolyte layer 36, a counter electrode layer 37, a second conductive layer 4, and a second transparent substrate layer 5, which are laminated in this order. Wherein the electrochromic layer 35 comprises the electrochromic material; electrolyte layer 36 includes the electrolyte material; the counter electrode layer 37 is comprised in the counter electrode material. The electrochromic layer 35 and the counter electrode layer 37 in fig. 5 are in a solid state, and the state of the electrolyte layer 36 is flowable or a gel state or a solid state.

In one embodiment, the first conductive layer and/or the second conductive layer includes a plurality of partitions, and adjacent partitions have different resistances.

This embodiment is applicable to the zoned electrochromic devices shown in fig. 2 to 5. Taking the first conductive layer 2 as an example, as shown in fig. 6, the first conductive layer 2 includes a partition 21 and a partition 22 having different resistances. Specifically, it can be realized in the following two ways. The first and second embodiments described below may be applied simultaneously or independently.

The first method is as follows: the

divisional areas

21 and 22 are formed using conductive substances different in resistance, respectively, for example, the resistance of the conductive substance in the divisional area 21 is larger than the resistance of the conductive substance in the divisional area 22, that is, the resistance of the divisional area 21 is larger than the resistance of the divisional area 22.

The second method comprises the following steps: partition 21 and partition 22 are formed using the same conductive substance, but the concentration or thickness of the conductive substance contained in partition 21 and partition 22 is different, for example, the concentration of the conductive substance in partition 21 is lower than that in partition 22, and since the higher the concentration of the conductive substance in the partition, the lower the resistance of the partition, the higher the resistance of partition 21 is, the higher the resistance of partition 22 is.

When the first conductive layer is manufactured by coating, magnetron sputtering, vapor deposition (such as vacuum evaporation), electroplating and the like, the conductive substances in a specific partition can be reduced by adding a mask, so that the resistance value of the partition is increased. If the conductive layer is formed by coating, magnetron sputtering, vapor deposition (such as vacuum evaporation), electroplating, etc., a part of the conductive material in the specific region can be removed by laser film removal, thereby increasing the resistance of the region. In order to achieve better partition color change effect, the absolute value of the resistance value difference between adjacent partitions is not lower than 5 Ω/sq (square resistance).

In the two modes, because the resistance of each subarea is different, when the subarea electrochromic device is connected to an external circuit for color change, the subarea with large resistance has the phenomenon of color change delay or incomplete color change, so that color difference is generated between the subareas and the adjacent subareas, patterns are displayed, and the preset subarea adjustment is realized.

It should be noted that, in all embodiments of the present application, "the partition electrochromic device is connected to the external circuit" means that each partition can be electrically connected to the external circuit. The way of realizing the electrical connection of different partitions comprises the following steps:

the method I comprises the following steps: all the subareas are respectively connected with electrode wires of the subarea electrochromic devices, and the electrode wires are used for realizing the connection of the subarea electrochromic devices and an external circuit; for example, the partition 21 and the partition 22 in fig. 6 are connected to the electrode lines, respectively.

The second method comprises the following steps: part of subareas are connected with electrode wires of the subarea electrochromic devices, the subareas which are not connected with the electrode wires of the subarea electrochromic devices are electrically connected with the adjacent subareas, and at least one of the adjacent subareas is connected with the electrode wires, or at least one of the adjacent subareas is electrically connected with the subarea which is electrically connected with an external circuit; for example, the partition 21 in fig. 6 is connected to an electrode line, and the partition 22 is electrically connected to the partition 21. The electrical connection between adjacent sections may be achieved by direct contact of adjacent sections, or by providing other conductive material between adjacent sections.

In the above example, the first conductive layer 2 is divided into two partitions as an example, in other embodiments, the first conductive layer 2 may be divided into more partitions, the second conductive layer may be divided into a plurality of partitions, or both the first conductive layer and the second conductive layer may be divided into a plurality of partitions, and the number, the shape, and the like of the partitions in this application may be designed as needed, which is not limited in this application.

In an embodiment, the intermediate material layer comprises a plurality of partitions, and the conductivity of the electrolyte material in adjacent partitions is different, such that the conductivity of adjacent partitions is different.

The present embodiment is applicable to electrolyte material layers in a non-flow state, such as a gel electrolyte layer, a polymer electrolyte layer, and an inorganic solid electrolyte layer, that is, the method of the present embodiment is applicable when the intermediate material layer 3 in fig. 2, the electrolyte layer 32 in fig. 3, the electrolyte layer 34 in fig. 4, and the electrolyte layer 36 in fig. 5 are in a non-flow state.

Specifically, taking the intermediate material layer 3 in fig. 2 as an example, as shown in fig. 7A, the intermediate material layer 3 includes a partition 301, a partition 302, and a partition 303, which are different in conductivity. Specifically, it can be realized in the following two ways. The first and second embodiments described below may be applied simultaneously or independently.

The first method is as follows: partition 301, partition 302, and partition 303 use electrolyte materials of different conductivities, e.g., the conductivity of the electrolyte material in partition 301 is greater than the conductivity of the electrolyte material in partition 302 and partition 303, i.e., the conductivity of partition 301 is greater than the conductivity of partition 302 and partition 303, respectively.

Specifically, the adjustment of the partition conductivity can be achieved by adjusting the degree of crosslinking of the electrolyte material in the partition, and the concentration of the salt. Generally, the conductivity of a region having a large degree of crosslinking and a low salt concentration is also low.

The electrolyte material between adjacent sub-sections may be in contact (see section 301 and section 303 of fig. 7A), in which case over time, salt, solvents and other materials in the electrolyte material between adjacent sub-sections may undergo mass diffusion, thereby obscuring the boundaries of the adjacent sections, forming a transitional region 304.

The electrolyte material between adjacent partitions may also be left untouched (see

partitions

301 and 302 of fig. 7A), in which case there may be a gap between adjacent partitions. The electrochromic device/membrane containing the voids can generate bubbles in the laminated glass when an electrochromic laminated glass product is manufactured subsequently. It is therefore necessary to fill the voids of adjacent partitions with a specific barrier substance 305. To prevent the blocking material 305 from affecting the device appearance, a homogeneous material fill having a greater degree of cross-linking than the two blocks may be selected, and the fill width is preferably not more than 200 μm, i.e., the spacing width between adjacent segments is less than or equal to 200 μm.

In making the intermediate material layer shown in fig. 7A, the different zones are applied in batches, in portions. Specifically, partition 302 and partition 303 are coated first; after the

subareas

302 and 303 are solidified, barrier substances 305 are manufactured around the subareas 303; coating the subareas 301 after the barrier material 305 is cured; when the partition 301 is cured, the fabrication of the intermediate material layer 3 is completed.

The second method comprises the following steps: the adjacent subareas of the layer in which the electrolyte material is arranged comprise a plurality of electrolyte materials with different conductivities. See fig. 7B and 7C for another schematic illustration of the intermediate material layer 3, which comprises

partitions

306 and 307. Wherein, sub-region 307 comprises two layers of

electrolyte material

3071 and 3072 with different conductivities, and sub-region 306 comprises only one electrolyte 3071, so that the conductivity of sub-region 306 is different from that of sub-region 307 as a whole.

In making the intermediate material layers shown in fig. 7B and 7C, the different zones are applied in batches, in portions. Specifically, a material containing an electrolyte material 3072 is coated in the subarea 307, and after the material is cured, a material containing an electrolyte material 3071 is coated in the

subareas

307 and 306, and after the material is cured, the intermediate material layer 3 is completed. The conductivity of the electrolyte material contained in the upper and lower layers of the fabricated partition 307 is different.

In the two modes, because the electric conductivity of each subarea is different, when the subarea electrochromic device is connected to an external circuit for color change, the subarea with low electric conductivity has the phenomenon of color change delay or incomplete color change, so that color difference is generated between the subarea and the adjacent subarea, a pattern is displayed, and the preset subarea adjustment is realized.

Due to the difference in the electrolyte material in the adjacent partitions, the refractive index of the adjacent partitions is also different, which results in a more distinct boundary between the adjacent partitions, and this phenomenon can be reduced by reducing the overall thickness of the layer of the electrolyte material (e.g., the intermediate material layer 3 in fig. 2, the electrolyte layer 32 in fig. 3, the electrolyte layer 34 in fig. 4, and the electrolyte layer 36 in fig. 5), for example, the thickness of the layer of the electrolyte material is not more than 300 μm.

The above embodiment only takes the intermediate material layer 3 in fig. 2 as an example for description, but since the embodiment only adjusts for the electrolyte material, regardless of the structure and the manufacturing process, the electrolyte layer 32 in fig. 3, the electrolyte layer 34 in fig. 4, and the electrolyte layer 36 in fig. 5, which also include the electrolyte material, are all similar to the intermediate material layer 3 in fig. 2, and thus, the implementation is only referred to each other, and the details are not repeated herein. Meanwhile, the number, the shape and the like of the partitions can be designed according to needs, and the number, the shape and the like of the partitions are not limited in the application.

In one embodiment, the intermediate material layer comprises a plurality of subareas, the thicknesses of electrolyte materials contained in adjacent subareas are different, and a filling material is arranged in each subarea, so that the thickness of the intermediate material layer is uniform, and further, the thickness of the whole subarea electrochromic device is uniform.

The present embodiment is applicable to the partitioned electrochromic device shown in fig. 2 and fig. 3, and is particularly applicable to the intermediate material layer 3 shown in fig. 2 and the electrolyte layer 32 shown in fig. 3, and the common feature of the two is that the electrolyte material and the electrochromic material are in the same layer, that is, the intermediate material layer 3 shown in fig. 2 and the electrolyte layer 32 shown in fig. 3 are mixed layers of the electrolyte material and the electrochromic material. The intermediate material layer 3 shown in fig. 2 is used as an example for description, and the electrolyte layer 32 shown in fig. 3 is similar to the intermediate material layer 3 and will not be described again here.

As shown in fig. 8A to 8C, the intermediate material layer 3 includes a partition 308 and a partition 309, where the partition 309 includes a mixed material 3081 (formed by mixing an electrolyte material and an electrochromic material), and the partition 308 includes the mixed material 3081 and a filling material 3082. As can be seen, the thickness of hybrid material 3081 in zone 308 is less than the thickness of hybrid material 3081 in zone 309. To maintain uniform thickness throughout the zoned electrochromic device, filler material 3082 is provided in zones 308, conforming zones 308 to the overall thickness of zones 309. The filler 3082 is a material that is homogenous with the electrolyte material in the mixed material 3081 and contains no or little electrochromic material. Because the content of the electrochromic material in the partition 308 is different from that in the partition 309 (caused by the filling material 3082), when the partition electrochromic device is connected to an external circuit for color change, the partition 308 and the partition 309 can present different color change effects.

The filling material 3082 may be in contact with one of the first conductive layer 2 and the second conductive layer 4, or may be not in contact with both the first conductive layer 2 and the second conductive layer 4.

In one embodiment, the electrochromic layer comprises a plurality of subareas, and at least one of the type, color, response voltage, reaction speed and thickness of electrochromic materials in adjacent subareas are different.

The present embodiment is applicable to the partitioned electrochromic devices shown in fig. 4 and 5, and is particularly applicable to the electrochromic layer 33 shown in fig. 4 and the electrochromic layer 35 shown in fig. 5. The electrochromic layer 33 shown in fig. 4 will be described as an example, and the electrochromic layer 35 shown in fig. 5 is similar to the electrochromic layer 33, and will not be described again here.

As shown in fig. 9A, the electrochromic layer 33 includes

partitions

901 and 902, wherein at least one of the kind, color, response voltage, reaction speed, and thickness of the electrochromic material contained in the

partitions

901 and 902 is different. When the types and the colors of the electrochromic materials in the subareas are different, different subareas show different visual effects; generally speaking, when the response voltage of the electrochromic material in a partition is large, the reaction speed is slow, or the thickness of the part containing the electrochromic material in the partition is thin, the partition can generate obviously shallow color change, and further when the partition electrochromic device is connected to an external circuit for color change, the partition can present different color change effects on adjacent partitions.

Further, the same partition of the electrochromic layer includes a plurality of different electrochromic materials therein. As shown in fig. 9B, the partition 902 includes stacked different

electrochromic materials

9021 and 9022, and the partition 301 includes only one electrochromic material 9023, where the electrochromic material 9023 and the electrochromic material 9021 may be the same or different.

Because the two electrochromic materials are superposed in the partition 902, when the partition electrochromic device is connected to an external circuit for color change, the partition 902 can present a color change effect different from that of the partition 901.

In the manufacturing process of the electrochromic layer shown in fig. 9B, if the electrochromic material 9023 is the same as the electrochromic material 9021, and the electrochromic material 9022 is in contact with the conductive layer shown in fig. 4, the optimal scheme is to coat the electrochromic material 9022 first, and then coat the electrochromic material 9023 and the electrochromic material 9021 together after the electrochromic material 9022 is cured. If the electrochromic material 9023 is different from the electrochromic material 9021, the electrochromic material 9022, the electrochromic material 9021 and the electrochromic material 9023 are sequentially coated according to a preset sequence.

In the above embodiments, the number and shape of the partitions and the thickness of the electrochromic material can be designed as required, which is not limited in the present application.

This embodiment is applicable to the partitioned electrochromic devices shown in fig. 2 to 5, and the interface resistance in this embodiment may be the interface resistance between adjacent layers in any one group of the partitioned electrochromic devices. Generally speaking, the mass transfer between two layers of structures with good interface affinity and small interface resistance is fast, and the reaction is also fast. The interface resistance between different subareas is different, and the effect of subarea adjustment can also be achieved.

There are many ways to change the interface resistance, such as:

(1) And (3) preprocessing the conducting layers (the first conducting layer and/or the second conducting layer) to change the shape and the roughness of different partitions of the conducting layers. In general, the porous conductive layer subjected to the activation treatment (such as corona treatment or plasma treatment) has a higher affinity with the materials of the positive electrode, the negative electrode and the electrolyte layer, and has a lower interfacial resistance.

(2) The material structure of different subareas of each layer is changed or the activation priming coat of different subareas of each layer is increased, the affinity among the layers is increased, and the interface resistance is reduced.

The partition electrochromic device divides the electrochromic device into different blocks by adjusting the resistance of each component in the partition electrochromic device, the interface resistance among all layers and the type of the electrochromic material, and can realize partition of the device without cutting various partition grooves on the device, thereby realizing partition adjustment. The partition dimming device can effectively realize partition dimming without a partition groove.

All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent. The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and alterations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the embodiments of the present invention should be included in the scope of the claims of the embodiments of the present invention.

Claims

1. A partition electrochromic device is characterized by comprising a first transparent substrate layer, a first conducting layer, an intermediate material layer, a second conducting layer and a second transparent substrate layer which are sequentially stacked, wherein the intermediate material layer comprises an electrochromic material, an electrolyte material and a counter electrode material corresponding to the electrochromic material;

2. The zoned electrochromic device of claim 1, wherein the electrochromic material, the electrolyte material, and the counter electrode material are mixed into one layer.

3. The zoned electrochromic device of claim 1, wherein the intermediate material layer comprises:

a counter electrode layer comprising the counter electrode material;

4. The zoned electrochromic device according to claim 1, wherein the intermediate material layer comprises:

an electrochromic layer comprising the electrochromic material;

5. The zoned electrochromic device according to claim 1, wherein the intermediate material layer comprises:

an electrochromic layer comprising the electrochromic material;

an electrolyte layer comprising the electrolyte material;

a counter electrode layer comprising the counter electrode material.

6. The zoned electrochromic device according to any one of claims 1 to 5, wherein the first and/or second conductive layer comprises a plurality of zones, and adjacent zones differ in resistance.

7. The zoned electrochromic device according to any one of claims 1 to 5, wherein the intermediate material layer comprises a plurality of zones, and the electrical conductivity of the electrolyte material in adjacent zones is different.

8. The zoned electrochromic device of claim 7, wherein the electrolyte material in adjacent zones of the intermediate material layer are not in contact and a barrier substance is disposed between adjacent zones.

9. The zoned electrochromic device according to claim 7, wherein the thickness of the layer of electrolyte material in adjacent zones is less than or equal to 300 μm.

10. The zoned electrochromic device according to claim 7, wherein adjacent zones of the layer of electrolyte material comprise a plurality of electrolyte materials of different conductivities.

11. The zoned electrochromic device according to claim 2, wherein the intermediate material layer comprises a plurality of zones, adjacent zones have different thicknesses, and a filler material is disposed in each zone to make the thickness of the intermediate material layer uniform.

12. The zoned electrochromic device according to claim 3, wherein the electrolyte layer comprises a plurality of zones, adjacent zones have different thicknesses, and a filler material is provided in each zone to make the thickness of the intermediate material layer uniform.

13. The zoned electrochromic device according to claim 4 or 5, wherein the electrochromic layer comprises a plurality of zones, and at least one of a kind, a color, a response voltage, a reaction speed, and a thickness of the electrochromic material in adjacent zones is different.

14. The zoned electrochromic device of claim 13, wherein the electrochromic layer comprises a plurality of different electrochromic materials in the same zone.

15. The zoned electrochromic device according to any one of claims 1 to 5, wherein the interfacial resistance between the respective layers of adjacent zones is different.