Photovoltaic tile

Abstract

The utility model discloses a photovoltaic tile. The photovoltaic tile comprises a light-transmitting face plate, a back plate and a battery piece, the face plate is a curved face plate, the back plate and the face plate are arranged in a stacked mode, the shape of the back plate is the same as that of the face plate, the back plate is a fiber-reinforced thermoplastic composite plate, and the battery piece is located between the face plate and the back plate. According to the photovoltaic tile provided by the embodiment of the invention, the panel and the back plate are both curved surfaces, so that the working area of the photovoltaic tile is increased, the utilization rate of solar energy is improved, and meanwhile, the power generation efficiency of the photovoltaic tile is improved. The back plate is a fiber reinforced thermoplastic composite plate, so that the strength of the back plate can be improved, the risk of subfissure of a battery piece in the manufacturing process of the photovoltaic tile is reduced, the water vapor transmittance of the back plate can be reduced, the risk of corrosion of the battery piece by water vapor is reduced, and the service life of the photovoltaic tile is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic tile. Background Art

[0002] Solar energy is an inexhaustible green energy. At present, photovoltaic power generation has a wide range of applications, and solar energy and building integrated design (BIPV) has gradually become a trend, and residential roofs are the main application area for distributed photovoltaics. Among related technologies, photovoltaic tiles have a low utilization rate of solar energy, and photovoltaic tiles are prone to power loss during transportation and installation. Utility Model Content

[0003] The utility model provides a photovoltaic tile.

[0004] The photovoltaic tile of the embodiment of the present application includes a light-transmitting panel, a back panel and a battery cell. The panel is a curved panel, the back panel and the panel are stacked, the shape of the back panel is the same as the shape of the panel, the back panel is a fiber-reinforced thermoplastic composite panel, and the battery cell is located between the panel and the back panel.

[0005] In the photovoltaic tile of the embodiment of the present application, both the panel and the back panel are curved surfaces, which increases the working area of ​​the photovoltaic tile, improves the utilization rate of solar energy, and improves the power generation efficiency of the photovoltaic tile. The back panel is a fiber-reinforced thermoplastic composite panel, which can improve the strength of the back panel, reduce the risk of hidden cracks in the photovoltaic tile manufacturing process, and also reduce the water vapor permeability of the back panel, reduce the risk of water vapor corrosion of the battery, thereby extending the service life of the photovoltaic tile.

[0006] In some embodiments, the back plate includes at least one curved surface portion, and the curved surface portion has a radius of 26 mm to 200 mm.

[0007] In this way, the curvature of the back sheet is larger and the curvature range is wide, which is conducive to the realization of different shapes of photovoltaic tiles, and more diversified shapes can meet the various needs of the market. In addition, by reducing the radius of the curved surface, the surface area of ​​the back sheet can be increased, and the working area of ​​the photovoltaic tile can be increased, thereby improving the utilization rate of solar energy and the power generation efficiency of the photovoltaic tile.

[0008] In some embodiments, the number of curved surface portions is 1-10.

[0009] In this way, by increasing the number of curved surfaces, the surface area of ​​the back panel can be increased, and the working area of ​​the photovoltaic tiles can be increased, thereby improving the utilization rate of solar energy and the power generation efficiency of the photovoltaic tiles.

[0010] In some embodiments, when the number of the curved surface portions is at least two, the back plate includes a first curved surface portion and a second curved surface portion connected to the first curved surface portion, and the first curved surface portion and the second curved surface portion have opposite curvature directions.

[0011] In this way, the cross-sectional shape of the back plate is made into a waveform, which improves the three-dimensional sense of the photovoltaic tile and thus enhances the ornamental value of the photovoltaic tile.

[0012] In some embodiments, along an arrangement direction of the first curved surface portions and the second curved surface portions, the first curved surface portions and the second curved surface portions are alternately arranged.

[0013] In this way, the photovoltaic tiles can fit closely together, and the upper and lower tile surfaces can not only be laid in a straight line, but also in a staggered manner.

[0014] In some embodiments, the first curved surface portion and the second curved surface portion have the same curvature radius.

[0015] In this way, the photovoltaic tiles have good symmetry and beautiful shape, and it is easy to connect two adjacent photovoltaic tiles and install them conveniently.

[0016] In some embodiments, the cell is a crystalline silicon cell.

[0017] In this way, crystalline silicon cells can improve the conversion efficiency of solar energy, thereby increasing energy utilization and reducing energy waste.

[0018] In certain embodiments, a fiber-reinforced thermoplastic composite panel includes a matrix and a glass fiber layer disposed in the matrix.

[0019] In this way, the glass fiber layer combined with the matrix can enhance the strength of the fiber reinforced thermoplastic composite board, improve the service life of the backboard, and thus extend the service life of the photovoltaic tile.

[0020] In certain embodiments, the glass fibers of the glass fiber layer have a length of 6 mm to 25 mm.

[0021] In this way, the glass fibers of the glass fiber layer are longer, which can improve the strength of the fiber-reinforced thermoplastic composite board, thereby improving the strength of the backboard and extending the service life of the photovoltaic tile.

[0022] In certain embodiments, an adhesive layer is provided between the panel and the battery cell, and between the battery cell and the backplane. The adhesive layer bonds the panel and the battery cell, and bonds the battery cell and the backplane, and the thickness of the adhesive layer is 0.2 mm-0.7 mm.

[0023] In this way, the panel and the battery cell, the battery cell and the backplane can be connected and fixed by the adhesive layer, so as to realize the lamination packaging of the panel, the battery cell and the backplane, and form a stable and reliable structure. In addition, when the thickness of the adhesive layer meets the above requirements, the adhesive layer can play a buffering role between the panel and the battery cell, and between the battery cell and the backplane, to prevent the lamination from causing fragmentation.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic diagram of the exploded structure of the photovoltaic tile according to the embodiment of the utility model;

[0027] Figure 2 It is a schematic structural diagram of a fiber reinforced thermoplastic composite plate according to an embodiment of the utility model.

[0028] Explanation of the reference numerals: 100, photovoltaic tile; 10, panel; 20, back panel; 21, fiber-reinforced thermoplastic composite board; 22, curved portion; 23, first curved portion; 24, second curved portion; 25, substrate; 26, glass fiber layer; 30, battery cell; 31, crystalline silicon battery cell; 40, adhesive layer. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0034] See also Figure 1 The photovoltaic tile 100 of the embodiment of the present application includes a light-transmitting panel 10, a back panel 20 and a battery cell 30. The panel 10 is a curved panel. The back panel 20 is stacked with the panel 10. The shape of the back panel 20 is the same as that of the panel 10. The back panel 20 is a fiber-reinforced thermoplastic composite panel 21. The battery cell 30 is located between the panel 10 and the back panel 20.

[0035] In the photovoltaic tile 100 of the embodiment of the present application, the panel 10 and the back plate 20 are both curved surfaces, which increases the working area of ​​the photovoltaic tile 100, improves the utilization rate of solar energy, and improves the power generation efficiency of the photovoltaic tile 100. The back plate 20 is a fiber-reinforced thermoplastic composite plate 21, which can improve the strength of the back plate 20, reduce the risk of hidden cracks in the battery cell 30 during the manufacturing process of the photovoltaic tile 100, and can also reduce the water vapor permeability of the back plate 20, reduce the risk of water vapor corrosion of the battery cell 30, thereby extending the service life of the photovoltaic tile 100.

[0036] Specifically, the photovoltaic tile 100 is a roof tile that can convert solar energy into electrical energy. The photovoltaic tile 100 can be installed on an existing roof or as a building component, that is, photovoltaic building integration. The photovoltaic tile 100 can be a flat tile or a curved tile, and the photovoltaic tile 100 can be applied to flat or vertical installation.

[0037] The panel 10 and the back sheet 20 constitute the outermost layer of the photovoltaic tile 100, which can seal, insulate and protect the cells 30, thereby improving the mechanical properties of the photovoltaic tile 100. The panel 10 and the back sheet 20 can protect the cells 30 from damage caused by climate change, such as high temperature, low temperature, rain or hail, and can also protect the cells 30 from damage caused by collisions during transportation, effectively improving the ability of the photovoltaic tile 100 to cope with harsh environments.

[0038] The panel 10 includes a light-receiving surface and a backlight surface, and the light-transmitting panel 10 has good light transmittance. The panel 10 is the front side of the photovoltaic tile 100, and sunlight can be irradiated to the cell 30 through the light-receiving surface of the panel 10, so that the cell 30 receives light and converts solar energy into electrical energy.

[0039] In some embodiments, the panel 10 is an ultra-white tempered glass plate, which has higher light transmittance and strength, so that the light transmittance and surface strength of the photovoltaic tile 100 are higher. Ultra-white tempered glass has the characteristics of both ultra-white glass and tempered glass. Ultra-white glass is an ultra-transparent low-iron glass. The light transmittance of ultra-white glass can reach more than 91.5%. Ultra-white glass has excellent physical, mechanical and optical properties.

[0040] Tempered glass is a kind of prestressed glass. It can form compressive stress on the glass surface by physical or chemical methods. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity of the glass and enhancing the impact resistance of the glass itself. The impact strength of tempered glass of the same thickness is 3 to 5 times that of ordinary glass, and the bending strength is 3 to 5 times that of ordinary glass. Tempered glass has good thermal stability and can withstand a temperature difference of 3 times that of ordinary glass, and can withstand a temperature difference of 300°C. The texture and color of ultra-clear tempered glass can be set according to actual needs.

[0041] The outer layer of material on the back of the photovoltaic tile 100 is called the back sheet 20, which is a key component of the photovoltaic tile 100. The back sheet 20 isolates the battery cell 30 from the external environment, achieves insulation, and enables the battery to operate outdoors for a long time. Back sheets 20 of different structures have different functions, and the appropriate back sheet 20 can be selected according to different use areas. For example, the fluorine-containing back sheet 20 can be used in areas with strong ultraviolet rays, the white back sheet 20 can enhance light reflection and improve power generation efficiency, the black back sheet 20 can meet the aesthetic requirements of the roof, and the glass back sheet 20 has a high light transmittance.

[0042] The main function of the cell 30 is to generate electricity. The cell 30 can be divided into a crystalline silicon cell 31 and a thin film cell, each of which has its own advantages. The equipment cost of the crystalline silicon cell 31 is relatively low, and the photoelectric conversion efficiency is high, which is suitable for generating electricity in outdoor sunlight, but the consumption and cell 30 cost are high. The consumption and battery cost of thin film cells are low, the weak light effect is good, and they can also generate electricity under ordinary light, but the equipment cost is relatively high, and the photoelectric conversion efficiency is low.

[0043] See also Figure 1 In some embodiments, the back plate 20 includes at least one curved surface portion 22, and the curved surface portion 22 has a radius of 26 mm to 200 mm.

[0044] In this way, the curvature of the back plate 20 is larger and the curvature range is wide, which is conducive to the photovoltaic tile 100 to achieve different shapes and more diversified shapes to meet various market needs. In addition, by reducing the radius of the curved surface 22, the surface area of ​​the back plate 20 can be increased, and the working area of ​​the photovoltaic tile 100 can be increased, thereby improving the utilization rate of solar energy and the power generation efficiency of the photovoltaic tile 100.

[0045] Specifically, the curvature radius of the curved surface portion 22 can be any point value of 26mm, 30mm, 60mm, 90mm, 120mm, 150mm, 180mm, 200mm or a range value between any two of them. The smaller the curvature radius, the greater the curvature of the curved surface portion 22.

[0046] See also Figure 1 In some embodiments, the number of the curved surface portions 22 is 1-10.

[0047] In this way, by increasing the number of curved surfaces 22 , the surface area of ​​the back plate 20 can be increased, and the working area of ​​the photovoltaic tile 100 can be increased, thereby improving the utilization rate of solar energy and the power generation efficiency of the photovoltaic tile 100 .

[0048] Specifically, the number of the curved surface portions 22 may be any one of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 points.

[0049] See also Figure 1 In some embodiments, when the number of the curved surface portions 22 is at least two, the back plate 20 includes a first curved surface portion 23 and a second curved surface portion 24 connected to the first curved surface portion 23, and the bending directions of the first curved surface portion 23 and the second curved surface portion 24 are opposite.

[0050] In this way, the cross-sectional shape of the back plate 20 is a waveform, which improves the three-dimensional effect of the photovoltaic tile 100 and thus enhances the ornamental value of the photovoltaic tile 100 .

[0051] Specifically, the first curved surface portion 23 and the second curved surface portion 24 can be integrally formed, the first curved surface portion 23 can be bent toward the side close to the panel 10, and the second curved surface portion 24 can be bent toward the side away from the panel 10, or the first curved surface portion 23 can be bent toward the side away from the panel 10, and the second curved surface portion 24 can be bent toward the side close to the panel 10.

[0052] See also Figure 1 In some embodiments, along the arrangement direction of the first curved surface portion 23 and the second curved surface portion 24 , the first curved surface portion 23 and the second curved surface portion 24 are alternately arranged.

[0053] In this way, the photovoltaic tiles 100 can fit closely together, and the upper and lower tile surfaces can be laid not only in a straight line but also in a staggered manner.

[0054] Specifically, the number of the first curved surface portions 23 can be the same as the number of the second curved surface portions 24, or the number of the first curved surface portions 23 can be one more than the number of the second curved surface portions 24. For example, when the number of the first curved surface portions 23 is 1, the number of the second curved surface portions 24 can be 1; when the number of the first curved surface portions 23 is 2, the number of the second curved surface portions 24 can be 2 or 1; when the number of the first curved surface portions 23 is 3, the number of the second curved surface portions 24 can be 3 or 2; when the number of the first curved surface portions 23 is 4, the number of the second curved surface portions 24 can be 4 or 3; when the number of the first curved surface portions 23 is 5, the number of the second curved surface portions 24 can be 5 or 4.

[0055] In some embodiments, the first curved surface portion 23 and the second curved surface portion 24 have the same curvature radius.

[0056] In this way, the photovoltaic tile 100 has good symmetry and beautiful shape, and it is convenient to connect two adjacent photovoltaic tiles 100 and install them easily.

[0057] Specifically, the first curved surface portion 23 and the second curved surface portion 24 may be symmetrical with respect to the center of the connection point, and the curved surface radii of the points of the first curved surface portion 23 and the second curved surface portion 24 that are symmetrical with respect to the center of the connection point are the same.

[0058] See also Figure 1In some embodiments, the cell 30 is a crystalline silicon cell 31 .

[0059] In this way, the crystalline silicon cell 31 can improve the conversion efficiency of solar energy, thereby improving the utilization rate of energy and reducing energy waste.

[0060] Specifically, the crystalline silicon cell 31 can be divided into a monocrystalline silicon cell and a polycrystalline silicon cell. In some embodiments, the crystalline silicon cell 31 can be an XBC cell, which can be formed by organically combining an IBC cell with TOPCon, HJT, and perovskite technologies. IBC cells, also known as full back electrode contact cells, are a technology that moves the positive and negative metal contacts of solar cells to the back of the cell. Since there is no grid line on the front of the cell, the light-receiving area of ​​the cell is greatly increased, thereby improving the power generation efficiency of the photovoltaic tile 100. The number of crystalline silicon cells 31 can be multiple, and multiple crystalline silicon cells 31 can be connected in series or in parallel using shingling technology, splicing technology, or half-cell technology.

[0061] See also Figure 2 In certain embodiments, the fiber-reinforced thermoplastic composite panel 21 includes a matrix 25 and a glass fiber layer 26 disposed in the matrix 25 .

[0062] In this way, the glass fiber layer 26 combined with the matrix 25 can enhance the strength of the fiber reinforced thermoplastic composite board 21 , improve the service life of the backboard 20 , and thus extend the service life of the photovoltaic tile 100 .

[0063] Specifically, the glass fiber layer 26 can be formed of fiberglass, which is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. The fiber-reinforced thermoplastic composite board 21 is composited by a matrix 25 material and a reinforcing material through a certain molding process. The matrix 25 can be made of resin materials such as polypropylene (PP), polyethylene glycol terephthalate (PET), polyethylene (PE), polyphenylene sulfide (PPS) and polyether-ether-ketone (PEEK), and the reinforcing material can be glass fiber, carbon fiber, and aramid. In some embodiments, the substrate 25 is made of PET, and the glass fiber layer 26 is made of high-strength glass fiber, such as satin-weave glass fiber cloth, in which the glass fiber content is 30%. The mesh structure glass fiber cloth formed by the satin weave can play a better role in dispersing force during the bending process of the battery cell 30, thereby reducing the hidden crack phenomenon of the battery cell 30.

[0064] The fiber-reinforced thermoplastic composite plate 21 can be made of PET and a glass fiber layer 26 by a melt impregnation method. First, the glass fiber layer 26 is preheated and then laminated with a PET film extruded from an extruder. Two layers of glass fiber layers 26 are sandwiched between three layers of PET, wherein the middle layer is melted PET and the top and bottom layers are PET films. This sandwich structure is sent to a double-belt press, and is pressurized for impregnation and lamination at a temperature higher than the melting temperature of PET and lower than the degradation temperature of PET, and then cooled. The fiber-reinforced thermoplastic composite plate 21 can be recycled by a melt reshaping method, a slice reshaping method, etc., which is conducive to the sustainable use of resources.

[0065] In certain embodiments, the length of the glass fibers of the glass fiber layer 26 is 6 mm to 25 mm.

[0066] In this way, the glass fibers of the glass fiber layer 26 are longer, which can improve the strength of the fiber-reinforced thermoplastic composite board 21 , thereby improving the strength of the backboard 20 and extending the service life of the photovoltaic tile 100 .

[0067] Specifically, the length of the glass fibers of the glass fiber layer 26 can be any one of 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, and 25 mm, or a range between any two of them.

[0068] See also Figure 1 In some embodiments, an adhesive layer 40 is provided between the panel 10 and the battery cell 30, and between the battery cell 30 and the back plate 20. The adhesive layer 40 bonds the panel 10 and the battery cell 30, and bonds the battery cell 30 and the back plate 20. The thickness of the adhesive layer 40 is 0.2 mm-0.7 mm.

[0069] In this way, the panel 10 and the battery cell 30, and the battery cell 30 and the back plate 20 can be connected and fixed by the adhesive layer 40, so as to realize the lamination packaging of the panel 10, the battery cell 30 and the back plate 20, and form a stable and reliable structure. In addition, when the thickness of the adhesive layer 40 meets the above requirements, the adhesive layer 40 can play a buffering role between the panel 10 and the battery cell 30, and between the battery cell 30 and the back plate 20, to prevent the lamination from causing fragmentation.

[0070] Specifically, the photovoltaic tile 100 is constructed in accordance with the structural packaging of the panel 10, the adhesive layer 40, the battery cell 30, the adhesive layer 40, and the back plate 20 in sequence. The adhesive layer 40 can be selected from one of ethylene-vinyl acetate copolymer, polyolefin elastomer, polyvinyl butyral and 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, preferably polyolefin elastomer. The adhesive layer 40 between the panel 10 and the battery cell 30, and the adhesive layer 40 between the battery cell 30 and the back plate 20 can be made of the same material or different materials. In some embodiments, the panel 10, the back plate 20, the battery cell 30 and the adhesive layer 40 are all curved structures, such as arched and wavy, and the undulating curvature of the connecting surface is consistent.

[0071] The thickness of the adhesive layer 40 can be any point value of 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm or a range value between any two of them. The adhesive layer 40 between the panel 10 and the battery cell 30 and the adhesive layer 40 between the battery cell 30 and the back plate 20 can be the same thickness or different thicknesses.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A photovoltaic tile, characterized in that: include: A light-transmitting panel, wherein the panel is a curved panel; A back plate, stacked with the panel, the shape of the back plate is the same as that of the panel, and the back plate is a fiber-reinforced thermoplastic composite plate; and A battery cell is located between the panel and the back panel.

2. The photovoltaic tile according to claim 1, characterized in that: The back plate includes at least one curved surface portion, and the curved surface radius of the curved surface portion is 26 mm-200 mm.

3. The photovoltaic tile according to claim 2, characterized in that: The number of the curved surface portions is 1-10.

4. The photovoltaic tile according to claim 2, characterized in that: When the number of the curved surface portions is at least two, the back plate includes a first curved surface portion and a second curved surface portion connected to the first curved surface portion, and the first curved surface portion and the second curved surface portion have opposite curvature directions.

5. The photovoltaic tile according to claim 4, characterized in that: The first curved surface portions and the second curved surface portions are alternately arranged along an arrangement direction of the first curved surface portions and the second curved surface portions.

6. The photovoltaic tile according to claim 4, characterized in that: The first curved surface portion and the second curved surface portion have the same curved surface radius.

7. The photovoltaic tile according to claim 1, characterized in that: The cell is a crystalline silicon cell.

8. The photovoltaic tile according to claim 1, characterized in that: The fiber-reinforced thermoplastic composite panel includes a matrix and a glass fiber layer disposed in the matrix.

9. The photovoltaic tile according to claim 8, characterized in that: The length of the glass fibers in the glass fiber layer is 6 mm to 25 mm.

10. The photovoltaic tile according to claim 1, characterized in that: An adhesive layer is provided between the panel and the battery cell, and between the battery cell and the backplane. The adhesive layer bonds the panel and the battery cell, and bonds the battery cell and the backplane. The thickness of the adhesive layer is 0.2mm-0.7mm.

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