Electrochromic device

Abstract

The utility model relates to an electrochromic device, which belongs to the technical field of electrochromic devices and comprises an electrolyte layer, a conductive mechanism is arranged outside the electrolyte layer and comprises a first electrochromic layer, and the bottom of the first electrochromic layer is fixedly mounted with the top of the electrolyte layer. A first conductive layer is fixedly mounted at the top of the first electrochromic layer, a first device substrate is fixedly mounted at the top of the first conductive layer, and a second electrochromic layer is fixedly mounted at the bottom of the electrolyte layer. According to the electrochromic device, by arranging the PET film substrate, the purpose of conveniently bending the electrochromic device is achieved, compared with a glass substrate, the PET film is lighter, has good flexibility and is convenient to bend and fold, damage to the electrochromic device can be reduced, and the service life of the electrochromic device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochromic devices, in particular to an electrochromic device. Background Art

[0002] Electrochromic materials refer to the phenomenon that the optical properties of materials undergo stable and reversible changes under the action of an external electric field, which appears as a reversible change in color or transparency. Devices containing electrochromic materials are called electrochromic devices. Electrochromic devices usually include two conductive layers and an electrochromic material layer sandwiched between the two conductive layers. By energizing the two conductive layers, an electric field is formed at both ends of the electrochromic material layer, so that the optical properties of the electrochromic material change.

[0003] According to the patent with announcement number CN212749488U, an electrochromic device and a conductive substrate layer are proposed. The electrochromic device and the conductive substrate layer, the conductive multilayer structure includes a protective layer, a conductive layer and a primer layer stacked in sequence. The protective layer can be used to protect the conductive layer to prevent it from oxidation during the manufacturing process of the electrochromic device. The primer layer is used to increase the adhesion between the conductive layer and the substrate layer or the barrier layer. In addition, the barrier layer is arranged between the electrochromic layer and the conductive multilayer structure, between the conductive multilayer structure and the substrate layer, or on the side of the substrate layer away from the electrochromic layer, which can effectively improve the water and oxygen barrier effect at the substrate level and improve the electrochemical stability of the electrochromic device. In addition, on the basis that the electrochromic layer has variable optical properties, such as color, transmittance, etc., the multilayer combination of the primer layer, the barrier layer and the protective layer can adjust the transmittance and refractive index of the electrochromic device, so that the electrochromic device presents a colorful visual effect.

[0004] However, it is not convenient to release the stress on the electrochromic device during the bending process of the electrochromic device, thereby preventing damage to the device during the bending process. Therefore, an electrochromic device is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an electrochromic device having the advantage of being easy to bend, solving the problem that the electrochromic device is not easy to release the stress borne by the device during the bending process, thereby preventing damage to the device during the bending process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: comprising an electrolyte layer, wherein a conductive mechanism is arranged outside the electrolyte layer;

[0007] The conductive mechanism includes a first electrochromic layer, the bottom of the first electrochromic layer is fixedly installed on the top of the electrolyte layer, the first conductive layer is fixedly installed on the top of the first electrochromic layer, the first device substrate is fixedly installed on the top of the first conductive layer, the second electrochromic layer is fixedly installed on the bottom of the electrolyte layer, the second conductive layer is fixedly installed on the bottom of the second electrochromic layer, the second device substrate is fixedly installed on the bottom of the second conductive layer, the first conductive layer includes a primer layer, a barrier layer, a protective layer and a transparent conductive layer, the bottom of the transparent conductive layer is fixedly connected to the top of the first electrochromic layer, and the first device substrate is a PET film substrate.

[0008] Furthermore, the top of the base layer is fixedly connected to the bottom of the first device substrate, and a barrier layer is fixedly installed on the bottom of the base layer.

[0009] Furthermore, a protective layer is fixedly installed on the bottom of the barrier layer, and a transparent conductive layer is fixedly installed on the bottom of the protective layer.

[0010] Furthermore, the base layer is a layer or a multi-layer structure of a silicon nitride layer, a silicon oxide layer or a nickel-chromium alloy layer.

[0011] Furthermore, the barrier layer is a layer or a multilayer structure selected from the group consisting of a silicon dioxide layer, a silicon nitride layer, a niobium oxide layer, a titanium oxide layer, an aluminum oxide layer, or an indium tin zinc oxide layer.

[0012] Furthermore, the protective layer is a layer or a multilayer structure of a nickel-chromium alloy layer, a silicon nitride layer, an aluminum nitride layer or a titanium nitride layer.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The electrochromic device is provided with a PET film substrate, so that the electrochromic device can be easily bent. Compared with a glass substrate, the PET film is lighter and has good flexibility, so it is convenient to bend and fold, and can reduce damage to the electrochromic device and increase the service life of the electrochromic device. The protective layer and the primer layer are provided, so that the protective layer can be used to protect the conductive layer to prevent oxidation during the manufacturing process of the electrochromic device, and the primer layer is used to increase the adhesion between the conductive layer and the substrate layer or the barrier layer. The barrier layer can effectively improve the water and oxygen barrier effect of the first device substrate, and improve the electrochemical stability of the electrochromic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first electrochromic layer of the utility model;

[0017] Figure 3 The utility model structure Figure 1 Stereoscopic diagram.

[0018] In the figure: 1. electrolyte layer; 2. conductive mechanism; 201. first electrochromic layer; 202. first conductive layer; 2021. primer layer; 2022. barrier layer; 2023. protective layer; 2024. transparent conductive layer; 203. first device substrate; 204. second electrochromic layer; 205. second conductive layer; 206. second device substrate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 An electrochromic device in this embodiment includes an electrolyte layer 1, a conductive mechanism 2 is arranged outside the electrolyte layer 1, the conductive mechanism 2 includes a first electrochromic layer 201, the bottom of the first electrochromic layer 201 is fixedly installed with the top of the electrolyte layer 1, a first conductive layer 202 is fixedly installed on the top of the first electrochromic layer 201, a first device substrate 203 is fixedly installed on the top of the first conductive layer 202, and the first device substrate 203 is a PET film, which is lighter than a glass substrate.

[0021] Among them, the second electrochromic layer 204 is fixedly installed at the bottom of the electrolyte layer 1, the second conductive layer 205 is fixedly installed at the bottom of the second electrochromic layer 204, and the second device substrate 206 is fixedly installed at the bottom of the second conductive layer 205. The second device substrate 206 is a PET film with good flexibility and is convenient for bending and folding.

[0022] Specifically, the first device substrate 203 and the second device substrate 206 are both PET films, which are lighter than glass substrates, have good flexibility, are easy to bend and fold, can reduce damage to the electrochromic device, and increase the service life of the electrochromic device.

[0023] In this embodiment, the first conductive layer 202 includes a base layer 2021, a barrier layer 2022, a protective layer 2023 and a transparent conductive layer 2024. The top of the base layer 2021 is fixedly connected to the bottom of the first device substrate 203, and the barrier layer 2022 is fixedly installed on the bottom of the base layer 2021. The barrier layer 2022 can effectively improve the water and oxygen barrier effect of the first device substrate 203, thereby improving the electrochemical stability of the electrochromic device.

[0024] Among them, a protective layer 2023 is fixedly installed on the bottom of the barrier layer 2022, and a transparent conductive layer 2024 is fixedly installed on the bottom of the protective layer 2023. The bottom of the transparent conductive layer 2024 is fixedly connected to the top of the first electrochromic layer 201. The protective layer 2023 can be used to protect the transparent conductive layer 2024 to prevent it from oxidation during the manufacturing process of the electrochromic device.

[0025] Among them, the base layer 2021 is a layer or multilayer structure of a silicon nitride layer, a silicon oxide layer or a nickel-chromium alloy layer, the barrier layer 2022 is a layer or multilayer structure of a silicon dioxide layer, a silicon nitride layer, a niobium oxide layer, a titanium oxide layer, an aluminum oxide layer or an indium tin zinc oxide layer, and the protective layer 2023 is a layer or multilayer structure of a nickel-chromium alloy layer, a silicon nitride layer, an aluminum nitride layer or a titanium nitride layer. The base layer 2021 is used to increase the adhesion between the transparent conductive layer 2024 and the first device substrate 203 or the barrier layer 2022.

[0026] Specifically, the protective layer 2023 can be used to protect the transparent conductive layer 2024 to prevent it from being oxidized during the manufacturing process of the electrochromic device. The base layer 2021 is used to increase the adhesion between the transparent conductive layer 2024 and the first device substrate 203 or the barrier layer 2022. The barrier layer 2022 can effectively improve the water and oxygen barrier effect of the first device substrate 203, thereby improving the electrochemical stability of the electrochromic device.

[0027] The working principle of the above embodiment is:

[0028] (1) The first device substrate 203 is a PET film, which is lighter than a glass substrate and has good flexibility, is easy to bend and fold, can reduce damage to the electrochromic device, and improve the service life of the electrochromic device.

[0029] (2) The protective layer 2023 can be used to protect the transparent conductive layer 2024 from oxidation during the manufacturing process of the electrochromic device. The base layer 2021 is used to increase the adhesion between the transparent conductive layer 2024 and the first device substrate 203 or the barrier layer 2022. The barrier layer 2022 can effectively improve the water and oxygen barrier effect of the first device substrate 203, thereby improving the electrochemical stability of the electrochromic device.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrochromic device, comprising an electrolyte layer (1), characterized in that: A conductive mechanism (2) is provided outside the electrolyte layer (1); The conductive mechanism (2) comprises a first electrochromic layer (201), the bottom of the first electrochromic layer (201) is fixedly mounted on the top of the electrolyte layer (1), a first conductive layer (202) is fixedly mounted on the top of the first electrochromic layer (201), a first device substrate (203) is fixedly mounted on the top of the first conductive layer (202), a second electrochromic layer (204) is fixedly mounted on the bottom of the electrolyte layer (1), a second conductive layer (205) is fixedly mounted on the bottom of the second electrochromic layer (204), and a second device substrate (206) is fixedly mounted on the bottom of the second conductive layer (205); The first conductive layer (202) comprises a base layer (2021), a barrier layer (2022), a protective layer (2023) and a transparent conductive layer (2024); the bottom of the transparent conductive layer (2024) is fixedly connected to the top of the first electrochromic layer (201); and the first device substrate (203) is a PET film substrate.

2. An electrochromic device according to claim 1, characterized in that: The top of the base layer (2021) is fixedly connected to the bottom of the first device substrate (203), and a barrier layer (2022) is fixedly installed on the bottom of the base layer (2021).

3. An electrochromic device according to claim 1, characterized in that: A protective layer (2023) is fixedly installed on the bottom of the barrier layer (2022), and a transparent conductive layer (2024) is fixedly installed on the bottom of the protective layer (2023).

4. The electrochromic device according to claim 1, characterized in that: The base layer (2021) is a layer or a multilayer structure of a silicon nitride layer, a silicon oxide layer or a nickel-chromium alloy layer.

5. The electrochromic device according to claim 1, characterized in that: The barrier layer (2022) is a single layer or a multi-layer structure selected from the group consisting of a silicon dioxide layer, a silicon nitride layer, a niobium oxide layer, a titanium oxide layer, an aluminum oxide layer, or an indium tin zinc oxide layer.

6. The electrochromic device according to claim 1, characterized in that: The protective layer (2023) is a layer or a multilayer structure of a nickel-chromium alloy layer, a silicon nitride layer, an aluminum nitride layer or a titanium nitride layer.

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