Perovskite photovoltaic module

Abstract

The utility model relates to the technical field of photovoltaic modules, and discloses a perovskite photovoltaic module, which comprises a first glass plate, a first adhesive film, a second glass plate, a perovskite battery chip, a second adhesive film and a third glass plate, the sealant is arranged between the second glass plate and the third glass plate, the sealant is arranged in the edge areas of the second glass plate and the third glass plate, and the second glass plate, the third glass plate and the sealant jointly form a sealing cavity used for sealing the perovskite cell chip and the second adhesive film; the outer surface of the first glass plate and the outer surface of the third glass plate are uneven rough surfaces. According to the utility model, the photovoltaic assembly with a three-layer glass structure is formed, so that the noise intensity of sound transmitted in the photovoltaic assembly is effectively reduced; the rough surfaces on the first glass plate and the third glass plate can reduce the reflectivity of light and increase the transmittance of light, so that the conversion efficiency of the photovoltaic module is improved, and the rough surfaces can absorb noise and enhance the sound insulation effect of the photovoltaic module.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic modules, and particularly relates to a perovskite photovoltaic module. Background Art

[0002] With the development of photovoltaic technology, the application of photovoltaic products in various fields has been gradually expanded, such as in the fields of architecture and transportation. However, in the applications in the fields of transportation and architecture, there are relatively high requirements for the use performance of the products.

[0003] In the related-art photovoltaic modules, the sound insulation effect is poor, which cannot meet the functional requirements of modern buildings and reduces the user experience. Summary of the Utility Model

[0004] In view of this, the utility model provides a perovskite photovoltaic module to solve the technical problem of poor sound insulation effect of photovoltaic modules.

[0005] The utility model provides a perovskite photovoltaic module, comprising:

[0006] A first glass plate, a first adhesive film, a second glass plate, a perovskite battery chip, a second adhesive film and a third glass plate which are sequentially stacked;

[0007] A sealant, which is arranged between the second glass plate and the third glass plate, and the sealant is arranged in the edge area of the second glass plate and the third glass plate. The second glass plate, the third glass plate and the sealant together form a sealing cavity for sealing the perovskite battery chip and the second adhesive film;

[0008] The outer surfaces of the first glass plate and the third glass plate are uneven rough surfaces.

[0009] Beneficial effects: By setting three glass plates, using a glue film to connect the three glass plates together, and setting the perovskite solar cell chip between two of the glass plates, a photovoltaic module with a three-layer glass structure is formed, which can effectively reduce the noise intensity of sound transmission in the photovoltaic module, and also enhance the structural strength of the photovoltaic module and improve the impact resistance of the photovoltaic module. A sealant is provided in the edge area between the second glass plate and the third glass plate. The sealant and the second glass plate and the third glass plate together form a sealed cavity for sealing the perovskite solar cell chip and the second glue film to protect the perovskite solar cell chip and prevent adverse effects caused by moisture, oxygen, etc. in the external environment, ensuring the stable operation of the perovskite photovoltaic module. By setting the outer surfaces of the first glass plate and the third glass plate to be uneven rough surfaces to increase the roughness of the outer surfaces of the first glass plate and the third glass plate, when sound is incident on the outer surface of the first glass plate or the third glass plate, part of the sound will be absorbed by the rough surface, which plays a role in weakening the sound transmission to a certain extent; moreover, the uneven rough surface can also reduce the reflection of visible light and increase the transmission, playing an anti-glare role, which helps to improve the photoelectric conversion efficiency of the perovskite photovoltaic module.

[0010] In an optional embodiment, the roughness of the rough surface is 0.2 micrometers - 10.0 micrometers.

[0011] Beneficial effects: By setting a reasonable roughness, it can affect the reflection and scattering of light on the surface of the glass plate, reduce the reflectivity of light on the glass plate, so that the anti-glare effect of the photovoltaic module is more ideal, which helps to optimize the optical performance of the photovoltaic module.

[0012] In an optional embodiment, the roughness of the rough surface is 0.2 micrometers - 0.8 micrometers.

[0013] In an optional embodiment, the thickness of the first glue film is 0.3 mm - 2.0 mm;

[0014] The thickness of the second glass plate is 2.0 mm - 3.2 mm.

[0015] Beneficial effects: By setting a reasonable thickness range of the first glue film, it is ensured that when the first glue film bonds the first glass plate and the second glass plate, sufficient bonding force is provided. When the photovoltaic module is subjected to an external impact, the first glue film can play a certain buffering role and reduce the direct damage to the photovoltaic module. By setting a reasonable thickness range of the second glass plate, it is ensured that the second glass plate has sufficient strength to resist external physical impacts, pressures and bending stresses. The reasonable thickness range can avoid excessive increase in the weight and cost of the structure while ensuring the strength.

[0016] In an alternative embodiment, a colored translucent coating is further provided on the first glass plate, and the colored translucent coating is disposed on a surface of the first glass plate close to the first encapsulant film.

[0017] Advantageous effects: To meet specific design requirements, by providing a colored translucent coating on a surface of the first glass plate close to the first encapsulant film, a specific color is imparted to the photovoltaic module to meet applications in architecture or transportation, and the problem that traditional photovoltaic modules cannot emit light is solved.

[0018] In an alternative embodiment, the colored translucent coating is a perovskite quantum dot coating.

[0019] In an alternative embodiment, the color of the colored translucent coating includes at least one of white, gray, red, green, and blue.

[0020] Advantageous effects: By setting the color of the colored translucent coating to white, gray, red, green, or blue, etc., different application scenarios and user requirements can be met, enabling users to set the color of the colored translucent coating by themselves, providing personalized customization for users, and at the same time solving the problem of single color of photovoltaic modules.

[0021] In an alternative embodiment, the first encapsulant film is a thermoplastic polyurethane encapsulant film; the second encapsulant film is a polyolefin encapsulant film.

[0022] Advantageous effects: The thermoplastic polyurethane encapsulant film has good elasticity and flexibility, enabling the first encapsulant film to adapt to a certain extent to the thermal expansion and contraction and mechanical stress between different components in the photovoltaic module, enhancing the structural strength of the photovoltaic module, so that the photovoltaic module will not tear or undergo cohesive failure after being impacted, thus avoiding personal injury caused by the rupture of the photovoltaic module. The polyolefin encapsulant film has good insulation performance and water resistance, helping to prevent current leakage and moisture penetration, and protecting the performance and stability of the photovoltaic module. The polyolefin encapsulant film also has relatively high strength and toughness, and can withstand a certain amount of mechanical stress to provide support and protection for the photovoltaic module.

[0023] In an alternative embodiment, the sealant is a hot-melt butyl sealant.

[0024] Advantageous effects: The hot-melt butyl sealant will turn into a molten state when heated to a certain temperature, enabling the hot-melt butyl sealant to more easily fill the edge area between the second glass plate and the third glass plate, thereby effectively isolating moisture, oxygen, and other harmful substances in the external environment, ensuring that the photovoltaic module works in a stable environment, and improving the reliability and stability of the photovoltaic module.

[0025] In an alternative embodiment, a junction box is further included and is disposed on the surface of the second glass plate.

[0026] Beneficial effects: By arranging the junction box on the surface of the second glass plate, the space of the glass plate can be fully utilized, avoiding occupying extra space and making the whole photovoltaic module more compact. Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of a perovskite photovoltaic module according to an embodiment of the present invention.

[0029] Description of the reference numerals:

[0030] 10. Perovskite photovoltaic module; 100. First glass plate; 110. Colored semi-transparent coating; 200. First encapsulant film; 300. Second glass plate; 400. Perovskite solar cell chip; 500. Second encapsulant film; 600. Third glass plate; 700. Sealant; 800. Junction box. Specific Embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] According to an embodiment of the present invention, on the one hand, with reference to Figure 1 , a perovskite photovoltaic module 10 is provided, including: a first glass plate 100, a first encapsulant film 200, a second glass plate 300, a perovskite solar cell chip 400, a second encapsulant film 500, and a third glass plate 600 that are sequentially stacked; a sealant 700 disposed between the second glass plate 300 and the third glass plate 600, and the sealant 700 is disposed in the edge region of the second glass plate 300 and the third glass plate 600. The second glass plate 300, the third glass plate 600, and the sealant 700 together form a sealing cavity for sealing the perovskite solar cell chip 400 and the second encapsulant film 500; the outer surfaces of the first glass plate 100 and the third glass plate 600 are uneven rough surfaces.

[0033] In this embodiment, the first adhesive film 200 bonds the first glass plate 100 and the second glass plate 300 together, and the second adhesive film 500 bonds the second glass plate 300, the perovskite solar cell chip 400 and the third glass plate 600 together, thereby forming the perovskite photovoltaic module 10 with a three-layer glass structure, which can effectively reduce the noise intensity of sound transmission in the perovskite photovoltaic module 10, and also strengthen the structural strength of the perovskite photovoltaic module 10 and improve the impact resistance of the perovskite photovoltaic module 10. A sealant 700 is provided in the edge area between the second glass plate 300 and the third glass plate 600. The sealant 700 and the second glass plate 300 and the third glass plate 600 together form a sealed cavity, and then the perovskite solar cell chip 400 and the second adhesive film 500 are arranged in the sealed cavity to protect the perovskite solar cell chip 400 and prevent moisture, oxygen, etc. in the external environment from having an adverse effect on it, ensuring that the perovskite photovoltaic module 10 can work stably.

[0034] Furthermore, the outer surfaces of the first glass plate 100 and the third glass plate 600 are set as uneven rough surfaces, specifically the two surfaces of the first glass plate 100 and the third glass plate 600 facing each other. When sound is incident on the outer surface of the first glass plate 100 or the third glass plate 600, part of the sound will be absorbed by the rough surface, which plays a role in weakening the sound transmission to a certain extent; moreover, the uneven rough surface can also reduce the reflection of visible light and increase the transmission, playing an anti-glare role and helping to improve the photoelectric conversion efficiency of the perovskite photovoltaic module 10.

[0035] In order to enable the perovskite photovoltaic module 10 to have high photoelectric conversion efficiency and good stability, in other achievable ways, the perovskite solar cell chip 400 may include a bottom electrode layer, a hole transport layer, a perovskite layer, an electron transport layer and a top electrode layer.

[0036] In other achievable ways, the uneven rough surface can be a frosted surface, a sandblasted surface or a sand-etched surface, which can be specifically selected according to actual usage requirements and are not specifically limited.

[0037] In one of the embodiments, the roughness of the rough surface is 0.2 micrometers - 10.0 micrometers. Preferably, the roughness of the rough surface is 0.2 micrometers - 0.8 micrometers.

[0038] In this embodiment, the roughness of the rough surface can be 0.2 microns, 0.3 microns, 0.4 microns, 0.5 microns, 0.6 microns, 0.7 microns, 0.8 microns, 0.9 microns, 1.0 micron, 5.0 microns, 7.0 microns, 10.0 microns, etc. Specifically, how to set the roughness of the rough surface can be selected according to actual needs. By setting a reasonable roughness, the reflection and scattering of light on the surface of the glass plate can be affected, and the reflectivity of light on the glass plate can be reduced, so that the anti-glare effect of the perovskite photovoltaic module 10 is more ideal, which helps to optimize the optical performance of the perovskite photovoltaic module 10.

[0039] In other achievable ways, the second glass plate 300 is fluorine-doped tin oxide glass. Fluorine-doped tin oxide glass has high strength and hardness, can withstand a certain amount of pressure and impact force, and ensures the stability of the perovskite battery chip 400 during use. At the same time, fluorine-doped tin oxide glass has a high conductivity, can provide a good channel for the electron transport in the perovskite battery chip 400, is beneficial to improving the photoelectric conversion efficiency of the battery, and can make electrons transfer from the perovskite battery chip to the external circuit more quickly, reducing the energy loss of electrons during the transport process.

[0040] In one embodiment, the thickness of the first adhesive film 200 is 0.3 mm - 2.0 mm; the thickness of the second glass plate 300 is 2.0 mm - 3.2 mm.

[0041] In this embodiment, the thickness of the first adhesive film 200 can be 0.3 mm, 0.38 mm, 0.5 mm, 0.76 mm, 1.0 mm, 1.14 mm, 1.5 mm, 1.9 mm, 2.0 mm, etc. Specifically, how to set the thickness of the first adhesive film 200 can be selected according to actual needs. By setting a reasonable thickness of the first adhesive film 200, it is ensured that the first adhesive film 200 provides sufficient adhesive force when bonding the first glass plate 100 and the second glass plate 300. When the perovskite photovoltaic module 10 is subjected to an external impact, the first adhesive film 200 can play a certain buffering role and reduce direct damage to the perovskite photovoltaic module 10. When the thickness of the first adhesive film 200 is 0.3 mm, the thickness and weight of the first adhesive film 200 can be reduced as much as possible on the premise of meeting the basic bonding and buffering requirements, thereby reducing production costs. When the thickness of the adhesive film reaches 2.0 mm, it can provide stronger protection in some application scenarios with higher requirements for buffering performance. The thickness of the second glass plate 300 can be 2.0 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm, 3.0 mm, 3.2 mm, etc. Specifically, how to set the thickness of the second glass plate 300 can be selected according to actual needs. By setting a reasonable thickness range of the second glass plate 300, it is ensured that the second glass plate 300 has sufficient strength to resist external physical impacts, pressures, and bending stresses. A reasonable thickness range can avoid excessive increase in the weight and cost of the structure while ensuring strength.

[0042] In one of the embodiments, a colored translucent coating 110 is further provided on the first glass plate 100, and the colored translucent coating 110 is disposed on one surface of the first glass plate close to the first adhesive film 200. Further, the colored translucent coating 110 is a perovskite quantum dot coating.

[0043] In this embodiment, in order to meet specific design requirements, such as decorativeness, identifiability, or matching with specific application scenarios, by providing a colored translucent coating 110 on the first glass plate 100 close to the first adhesive film 200, a specific color is given to the perovskite photovoltaic module 10 to meet applications in architecture or transportation, solving the problem that traditional perovskite photovoltaic modules cannot emit light.

[0044] Further, the colored translucent coating 110 is a perovskite quantum dot coating; the perovskite quantum dot coating can adjust light, enabling the colored translucent coating 110 to selectively absorb or emit light of specific wavelengths, thereby changing the optical response of the perovskite photovoltaic module 10, which helps to improve the photoelectric conversion efficiency of the perovskite solar cell chip 400 and brings unique color and optical properties to the perovskite photovoltaic module 10.

[0045] In one embodiment, the color of the colored translucent coating 110 includes at least one of white, gray, red, green, and blue.

[0046] In this embodiment, the color of the colored translucent coating 110 includes but is not limited to white, gray, red, green, and blue. Other colors or combinations of several colors can be selected according to the usage requirements. Different color selections can meet different application scenarios and user needs, and also provide personalized customization for users, enabling them to choose appropriate colors according to their preferences, architectural design requirements, or specific functional requirements, while solving the problem of the single color of the perovskite photovoltaic module 10.

[0047] In one embodiment, the first adhesive film 200 is a thermoplastic polyurethane adhesive film; the second adhesive film 500 is a polyolefin adhesive film.

[0048] In this embodiment, the thermoplastic polyurethane adhesive film has good elasticity and flexibility, enabling the first adhesive film 200 to adapt to a certain extent to the thermal expansion and contraction and mechanical stress between different components in the perovskite photovoltaic module 10, enhancing the structural strength of the perovskite photovoltaic module 10, so that the perovskite photovoltaic module 10 will not tear or undergo cohesive failure after being impacted, thereby avoiding personal injury caused by the rupture of the perovskite photovoltaic module 10. The polyolefin adhesive film has good insulation performance and water resistance, which helps prevent current leakage and moisture penetration, protecting the performance and stability of the perovskite photovoltaic module 10. The polyolefin adhesive film also has relatively high strength and toughness and can withstand a certain amount of mechanical stress to provide support and protection for the perovskite photovoltaic module 10.

[0049] In one embodiment, the sealant 700 is a hot-melt butyl sealant 700.

[0050] In this embodiment, the hot-melt butyl sealant 700 will turn into a molten state after being heated to a certain temperature, enabling the hot-melt butyl sealant 700 to more easily fill the edge area between the second glass plate 300 and the third glass plate 600, thereby effectively isolating moisture, oxygen, and other harmful substances in the external environment, ensuring that the perovskite photovoltaic module 10 works in a stable environment, and improving the reliability and stability of the perovskite photovoltaic module 10.

[0051] In one embodiment, it further includes a junction box 800, which is disposed on the surface of the second glass plate 300.

[0052] In this embodiment, disposing the junction box 800 on the surface of the second glass plate 300 can make full use of the space of the glass plate, avoid occupying extra space, and make the entire perovskite photovoltaic module 10 more compact. It should be noted that Figure 1It is only used to schematically show the relative positional relationship between the structures. The junction box is generally tightly connected to the third glass plate 600, and the outer surface of the third glass plate 600 at the connection may not be a rough surface.

[0053] In other realizable ways, according to different application requirements and space limitations, the appropriate type and installation position of the junction box 800 can be selected. At the same time, according to the magnitude of the current and transmission requirements, junction boxes 800 of different specifications can be designed to meet the needs of perovskite photovoltaic modules 10 of different scales.

[0054] The perovskite photovoltaic module provided by the present utility model is tested for the air-borne sound insulation quantity as follows: Provide a perovskite photovoltaic module, place the perovskite photovoltaic module in the test chamber, and conduct air-borne sound insulation quantity tests using different types of noise sources. The test results are shown in Table 1:

[0055] Table 1

[0056]

[0057]

[0058] Among them, the specifications of the perovskite photovoltaic module are 1960mm×600mm×13.6mm; the relative humidity of the air in the test chamber is 76%; the temperature is 21°C; the air pressure is 100.7 kPa. The test basis is GB / T19889.3-2005; the weighted sound insulation quantity (R w ) and the spectrum correction quantity (C; C tr ) are calculated according to GB / T50121-2005; the spectrum correction quantity suitable for different types of noise sources is selected with reference to Table A.0.1 in GB / T50121-2005.

[0059] Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A perovskite photovoltaic module, characterized in that, Including: A first glass plate (100), a first adhesive film (200), a second glass plate (300), a perovskite solar cell chip (400), a second adhesive film (500), and a third glass plate (600) that are stacked in sequence; A sealant (700) is disposed between the second glass plate (300) and the third glass plate (600), and the sealant (700) is disposed in the edge region of the second glass plate (300) and the third glass plate (600). The second glass plate (300), the third glass plate (600), and the sealant (700) together form a sealing cavity for sealing the perovskite solar cell chip (400) and the second adhesive film (500); The outer surfaces of the first glass plate (100) and the third glass plate (600) are uneven rough surfaces.

2. The perovskite photovoltaic module according to claim 1, wherein, The roughness of the rough surface is 0.2 micrometers - 10.0 micrometers.

3. The perovskite photovoltaic module according to claim 2, wherein The roughness of the rough surface is 0.2 micrometers - 0.8 micrometers.

4. The perovskite photovoltaic module according to claim 1, wherein The thickness of the first adhesive film (200) is 0.3 mm - 2.0 mm; The thickness of the second glass plate (300) is 2.0 mm - 3.2 mm.

5. The perovskite photovoltaic module according to claim 1, wherein, A colored translucent coating (110) is further provided on the first glass plate (100), and the colored translucent coating (110) is disposed on one surface of the first glass plate (100) close to the first adhesive film (200).

6. The perovskite photovoltaic module according to claim 5, wherein, The color of the colored translucent coating (110) includes at least one of white, gray, red, green, and blue.

7. The perovskite photovoltaic module according to claim 5, characterized in that, The colored translucent coating (110) is a perovskite quantum dot coating.

8. The perovskite photovoltaic module according to claim 1, wherein, The first adhesive film (200) is a thermoplastic polyurethane adhesive film; the second adhesive film (500) is a polyolefin adhesive film.

9. The perovskite photovoltaic module according to claim 1, characterized in that, The sealant (700) is a hot melt butyl sealant.

10. The perovskite photovoltaic module according to any one of claims 1-9, characterized in that, It further includes a junction box (800) disposed on the surface of the second glass plate (300).

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