A color battery assembly and photovoltaic system

Abstract

The utility model is suitable for photovoltaic technical field provides a kind of colour battery assembly and photovoltaic system, including the back face encapsulation layer, back face adhesive film, cell layer, colour reflection layer, front glass that are sequentially laminated, cell layer includes several black solar cell piece;Colour battery assembly includes label, label is located between back face adhesive film and colour reflection layer, and label and the position of black solar cell piece do not overlap, label includes black base, and the mark on the black base, mark is located on the surface of black base close to colour reflection layer.The label of the colour battery assembly of the utility model can present colour effect on the front of colour battery assembly, so that the appearance color of the front of colour battery assembly is coordinated, and the mode that label realizes colour effect is simple, conducive to the production and processing of colour battery assembly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a colored battery module and photovoltaic system. Background Technology

[0002] In today's society, energy conflicts and environmental problems are becoming increasingly prominent, making the development of various clean energy sources an inevitable trend. In recent years, the photovoltaic industry has developed rapidly, with technological updates accelerating. Currently, the photovoltaic industry is moving towards product diversification, and building-integrated photovoltaics (BIPV) is one of the most important markets for photovoltaic power generation applications worldwide. Currently, colored solar cell modules in the industry achieve their colorization through colored glass, colored encapsulant films, or colored solar cells.

[0003] In related technologies, colored solar cell modules typically require labels with identification markings indicating the photovoltaic module manufacturer or other information to ensure product traceability. However, the impact of the label's base color on the front color of colored solar cell modules is usually not considered. After the modules are encapsulated with colored film, a significant color difference exists between the label's base color and the cell color, resulting in an inconsistent appearance and hindering color uniformity on the front of the module. Utility Model Content

[0004] This invention provides a colored battery assembly, which aims to solve the problem that there is a significant color difference between the label base color and the battery cell color on the front of the existing colored battery assembly, resulting in an inconsistent appearance color on the front of the colored battery assembly.

[0005] This invention is implemented as follows: a colored battery assembly is provided, comprising a back encapsulation layer, a back adhesive film, a battery layer, a colored reflective layer, and a front glass arranged in sequence, wherein the battery layer includes a plurality of black solar cells.

[0006] The colored battery assembly includes a label located between the back adhesive film and the colored reflective layer, and the label does not overlap with the position of the black solar cell. The label includes a black substrate and an identifier disposed on the black substrate near the colored reflective layer.

[0007] Preferred options also include:

[0008] The frame, the back encapsulation layer, the back adhesive film, the battery layer, the colored reflective layer, and the front glass are fixed inside the frame, and the label is located between the black solar cell at the edge of the battery layer and the frame.

[0009] Preferably, the color reflective layer is a stack of one or more of the following: EVA layer, POE layer, and PVB layer.

[0010] Preferably, the thickness of the colored reflective layer is 0.1~2mm.

[0011] Preferably, the black substrate is a laminate of one or at least two of the following: a PET layer, a PVC layer, a PE layer, and a PP layer.

[0012] Preferably, the thickness of the black substrate is 0.05~3mm.

[0013] Preferred options also include:

[0014] A black background layer is located between the back adhesive film and the colored reflective layer, and the black background layer does not overlap with the position of the label and the black solar cell.

[0015] Preferably, the black background layer is a laminate of one or at least two of the following: PET layer, PVC layer, PE layer, and PP layer.

[0016] Preferably, the thickness of the black background layer is 0.05~3mm.

[0017] Preferably, the black background layer has the same thickness as the black substrate.

[0018] Preferably, the black background layer, the black substrate, and the black solar cell are all of the same thickness.

[0019] Preferably, the black substrate has a reflectivity of less than 10% for light with wavelengths in the range of 380 to 750 nanometers.

[0020] Preferably, the marking is colored or white.

[0021] Preferably, the identifier is one or a combination of text, graphics, barcode, and QR code.

[0022] This utility model also provides a photovoltaic system, including the aforementioned colored battery module.

[0023] This utility model provides a color battery assembly with a label comprising a black base and a marking on the black base. After the color battery assembly is encapsulated, a color reflective layer is superimposed on the label. The black base of the label, combined with the color reflective layer, selectively reflects light of the wavelength corresponding to the desired color, while other wavelengths are absorbed by the black base. Thus, the black base of the label appears colored on the front of the color battery assembly. Simultaneously, the color reflective layer is superimposed on a black solar cell. The black solar cell, combined with the color reflective layer, selectively reflects light of the wavelength corresponding to the desired color, thus the black solar cell also appears colored on the front of the color battery assembly. This ensures that the black base of the label and the black solar cell display the same color on the front of the color battery assembly, achieving color uniformity on the front of the color battery assembly. The label color on the front of the battery module coordinates with the appearance color of the battery cells. Furthermore, the label itself does not need to be colored; it only needs a black base with a colored reflective layer on the colored battery module. This achieves a colored effect on the front of the colored battery module, simplifying the process and reducing the difficulty of manufacturing the colored battery module. Additionally, when changing the color of the colored battery module, only the different colored reflective layer needs to be replaced. This ensures the label base and battery cells display the same color on the front of the colored battery module, eliminating the need to adjust the label base color separately. This allows for flexible adjustments in colored battery module production, reducing production difficulty and cost, and further facilitating the manufacturing process. Attached Figure Description

[0024] Figure 1 A cross-sectional schematic diagram of a color battery assembly provided for an embodiment of this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of a label for a colored battery assembly provided in an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "backlight", "front", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] This utility model provides a colored battery module with a black solar cell and a label. The label includes a black base and a mark on the black base. After the black solar cell and label are encapsulated in the colored battery module, a colored reflective layer covers the black solar cell and label. The black base of the label is paired with the colored reflective layer, and the black solar cell is paired with the colored reflective layer. The colored reflective layer selectively reflects light of the corresponding color, so that the black base of the label and the black solar cell present the same color on the front of the colored battery module. This achieves the same color effect on the label position and the solar cell position on the front of the colored battery module, making the color effect of the label base and the color effect of the solar cell consistent. This ensures that the color of the label position on the front of the colored battery module is coordinated with the appearance color of the solar cell position. Moreover, when it is necessary to change the color of the colored battery module, only the different colored reflective layer needs to be replaced. This will also make the label base and the solar cell present the same color on the front of the colored battery module, without the need to adjust the label base color separately. This facilitates flexible adjustment in the production of colored battery modules, reduces the production difficulty and cost of colored battery modules, and is more conducive to the production and processing of colored battery modules.

[0031] Please refer to Figures 1-2 The present invention provides a colored battery module 100, which includes a back encapsulation layer 1, a back adhesive film 2, a battery layer 3, a colored reflective layer 4, and a front glass 5 stacked in sequence. The battery layer 3 includes a plurality of black solar cells 31.

[0032] The colored battery assembly 100 includes a label 6 located between the back adhesive film 2 and the colored reflective layer 4, and the label 6 does not overlap with the position of the black solar cell 31. The label 6 includes a black substrate 61 and a mark 62 disposed on the black substrate. The mark 62 is disposed on the surface of the black substrate 61 near the colored reflective layer 4.

[0033] In this embodiment of the invention, the front side of the black solar cell 31 is black, and the reflectivity of the front side of the black solar cell 31 to light with wavelengths in the range of 380 to 750 nanometers is less than 10%, so that when the black solar cell 31 is combined with the colored reflective layer 4, the front side of the black solar cell 31 appears colored. Specifically, the black solar cell 31 can be a back-contact solar cell, that is, both the positive and negative electrodes of the black solar cell 31 are disposed on the back side of the black solar cell 31.

[0034] It should be noted that, in this embodiment of the invention, "color" refers to colors other than black and white.

[0035] In this embodiment of the present invention, the color battery assembly 100 includes a label 6 comprising a black substrate 61 and an identifier 62 disposed on the black substrate 61. After the color battery assembly 100 is encapsulated, a color reflective layer 4 is stacked on the label 6. The black substrate 61 of the label 6, in conjunction with the color reflective layer 4, selectively reflects light of the wavelength corresponding to the desired color, while most of the light of other wavelengths is absorbed by the black substrate 61. This results in the black substrate 61 of the label 6 displaying a color effect on the front of the color battery assembly 100. Similarly, the color reflective layer 4 is stacked on a black solar cell 31. The black solar cell 31, in conjunction with the color reflective layer 4, selectively reflects light of the wavelength corresponding to the desired color, while most of the light of other wavelengths is absorbed by the black solar cell 31. This results in the black solar cell 31 displaying a color effect on the front of the color battery assembly 100. Thus, the black substrate 61 of the label 6 and the black solar cell 31 display the same color on the front of the color battery assembly 100, ensuring that the black substrate 61 of the label 6 and the black solar cell 31 display the same color on the front of the color battery assembly 100. 1. There is no obvious color difference on the front of the colored battery module 100, achieving color uniformity on the front of the colored battery module 100. This ensures that the color of the label 6 on the front of the colored battery module 100 is consistent with the appearance color of the battery cells. Moreover, the label 6 itself does not need to be colored. The label 6 only needs to be set to black and paired with the colored reflective layer 4 of the colored battery module to achieve a colored effect on the front of the colored battery module. The method of achieving a colored effect on the front of the colored battery module is simple, which can reduce the processing difficulty of the colored battery module and facilitate its production. In addition, when a different color is needed on the front of the colored battery module, only a different colored reflective layer 4 needs to be replaced. This will also make the base of the label 6 and the battery cells present the same color on the front of the colored battery module 100. When changing the color of the colored battery module 100, there is no need to adjust the base color of the label 6 separately. This facilitates flexible adjustment in the production of the colored battery module 100, reduces the production difficulty and cost of the colored battery module 100, and further facilitates its production.

[0036] As one embodiment of this utility model, the back sealing layer 1 is a back plate or a back glass.

[0037] In this embodiment, when the color battery module 100 is a single-glass module, the back encapsulation layer 1 is a back sheet; when the color battery module 100 is a double-glass module, the back encapsulation layer 1 is the back glass. The front glass 5 is transparent glass.

[0038] As one embodiment of this utility model, the back adhesive film 2 can be a white adhesive film or a colored adhesive film. When the back adhesive film 2 is a colored adhesive film, double-sided colorization of the colored battery assembly 100 can be achieved.

[0039] In one embodiment of this utility model, the battery layer 3 may specifically include multiple battery strings connected in parallel and / or series, and each battery string includes multiple black solar cells 31 arranged in series. The multiple battery strings are connected in parallel and / or series via busbars, and the multiple black solar cells 31 of each battery string are connected in series via solder ribbons. To further coordinate and unify the front color of the colored battery module 100, the front of the solder ribbons and busbars located between the battery cells 31 are set to black, thus making the solder ribbons and busbars appear colored on the front of the colored battery module 100 as well.

[0040] As an embodiment of this utility model, the color reflective layer 4 is a stack of one or more of the following: EVA layer, POE layer, and PVB layer.

[0041] The EVA layer is made of ethylene-vinyl acetate copolymer (EVA), the POE layer is made of polyolefin elastomer (POE), and the PVB layer is made of polyvinyl butyral (PVB). The colored reflective layer 4 contains colored components; that is, it is a stack of one or more of the EVA, POE, and PVB layers containing colored components. The colored components can be inorganic pigments or organic dyes. Specifically, by adjusting the colored components in the colored reflective layer 4, the color of the colored reflective layer 4 can be changed and adjusted, thereby achieving the color change and adjustment of the colored battery module 100. This effectively realizes the free selection and change of the appearance color of the colored battery module 100, enhancing its aesthetics and allowing the color to be adjusted according to user needs, increasing product variety.

[0042] In this embodiment of the invention, the average reflectivity of the color reflective layer 4 for light with wavelengths in the range of 380 to 750 nanometers is less than 30%, and the color reflective layer 4 has a main reflection range with a corresponding wavelength range in the range of 380 to 750 nanometers. The average reflectivity of the color reflective layer 4 for light with wavelengths corresponding to the main reflection range is greater than the average reflectivity of the color reflective layer 4 for light with wavelengths in other bands in the range of 380 to 750 nanometers, so that the color reflective layer 4 achieves a good color effect.

[0043] The primary reflection range of the color reflective layer 4 spans a wavelength range greater than 10 nm and less than 100 nm. Furthermore, the average reflectivity of the color reflective layer 4 for light corresponding to its primary reflection range is greater than 300% compared to the average reflectivity of other wavelengths within the 380-750 nm range, thus enabling the color reflective layer 4 to achieve better color effects. The wavelength range corresponding to the primary reflection range of the color reflective layer 4 can be determined based on its specific color. For example, if the wavelength range of the primary reflection range of the color reflective layer 4 is 460-480 nm, the color reflective layer 4 will appear blue; or, if the wavelength range is 540-560 nm, the color reflective layer 4 will appear green.

[0044] Furthermore, the wavelength range of the main reflection region of the color reflective layer 4 spans from 30 nm to 100 nm, which reduces the color saturation of the color reflective layer 4, resulting in a better optimized color effect and making it more suitable for applications where photovoltaic products are integrated with buildings. For example, the wavelength range of the main reflection region of the color reflective layer 4 is 450~490 nm; or, for another example, the wavelength range of the main reflection region of the color reflective layer 4 is 520~580 nm.

[0045] As an embodiment of this utility model, the thickness of the color reflective layer 4 is 0.1~2mm, which avoids the color of the front of the module being unclear due to the thickness of the color reflective layer 4 being too thin, and avoids the color reflective layer 4 being too thick, which affects the sunlight transmittance of the front of the module, thus achieving a balance between module color and battery efficiency.

[0046] For example, the thickness of the color reflective layer 4 can be any value among 0.1mm, 0.15mm, 0.2mm, 0.23mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.3mm, 1.35mm, 1.4mm, 1.6mm, 1.8mm, 1.9mm, and 2mm.

[0047] In this embodiment of the invention, the label 6 is located between the back adhesive film 2 and the colored reflective layer 4. The label 6 and the black solar cell 31 do not overlap; that is, the label 6 is located between the back adhesive film 2 and the colored reflective layer 4, but not at the location where the black solar cell 31 is situated. In other words, the label 6 and the black solar cell 31 are located in different positions. The label 6's location between the back adhesive film 2 and the colored reflective layer 4 encapsulates the label 6, allowing it to maintain a good appearance even after prolonged use, and making it convenient for users to observe the marking 62 on the label 6.

[0048] In this embodiment of the invention, the number of labels 6 can be one or more. When there are multiple labels 6, different labels 6 can be used to label different information.

[0049] In this embodiment of the invention, the black substrate 61 of the label 6 is specifically black. Preferably, the black substrate 61 has a reflectivity of less than 10% for light with wavelengths in the range of 380 to 750 nanometers, so that when the black substrate 61 is combined with the colored reflective layer 4, the black substrate 61 can display the desired color on the front of the component.

[0050] Preferably, the reflectivity of the front side of the black solar cell 31 to light with wavelengths in the range of 380 to 750 nanometers is less than 10%, so that when the black solar cell 31 is paired with the colored reflective layer 4, the light of the colored reflective layer 4 selectively reflects the light that needs to be displayed in a certain color, while most of the light in other wavelength ranges is absorbed by the black solar cell 31, so that when the black solar cell 31 is viewed from the front of the colored battery module, it displays the corresponding color.

[0051] In one embodiment of this utility model, the mark 62 is white or colored, making it more visible on the black substrate 61. When the mark 62 is colored, its color differs from the color of the colored reflective layer 4. Preferably, the mark 62 is white, which is easier to process, has lower manufacturing costs, and makes it more visible on the black substrate 61.

[0052] As an embodiment of this utility model, the identifier 62 can be one or a combination of text, graphics, barcode or QR code, which facilitates the processing of the identifier 62 and the identification of the information in the identifier 62.

[0053] The mark 62 can be formed on the surface of the black substrate 61 near the color reflective layer 4 by means of printing, laser engraving, etc. The mark 62 can be flush with the surface of the black substrate 61 near the color reflective layer 4, or it can be raised on the surface of the black substrate 61 near the color reflective layer 4.

[0054] As an embodiment of this utility model, the black substrate 61 is a laminate of one or more of the following: PET layer, PVC layer, PE layer, and PP layer.

[0055] The PET layer is made of polyethylene terephthalate (PET), the PVC layer is made of polyvinyl chloride (PVC), the PE layer is made of polyethylene (PE), and the PP layer is made of polypropylene (PP).

[0056] As one embodiment of this utility model, the thickness of the black substrate 61 is 0.05~3mm.

[0057] In this embodiment, the thickness of the black substrate 61 of the label 6 is controlled within the range of 0.05~3mm. This avoids the black substrate 61 being too thin, making it inconvenient to set the mark 62, and also avoids the black substrate 61 being too thick, which would cause uneven stress during the lamination process, thus reducing the risk of cell cracking. Optionally, the thickness of the black substrate 61 is the same as the thickness of the black solar cell 31, which can reduce the risk of cracking of the black solar cell 31.

[0058] As one embodiment of this utility model, it also includes:

[0059] The frame 7, the back encapsulation layer 1, the back adhesive film 2, the battery layer 3, the colored reflective layer 4, and the front glass 5 are fixed inside the frame, and the label 6 is located between the black solar cell 31 at the edge of the battery layer 3 and the frame 7.

[0060] In this embodiment, the frame 7 is used to fix the back encapsulation layer 1, the back adhesive film 2, the battery layer 3, the color reflective layer 4, and the front glass 5, facilitating the fixed installation of the color battery assembly 100. The label 6 is located between the black solar cell 31 at the outermost edge of the battery layer 3 and the frame 7, facilitating the placement and observation of the label 6, and reducing the impact of the label 6 on the overall appearance of the color battery assembly 100.

[0061] In some embodiments, the label 6 may also be located at the gap between adjacent black solar cells 31, for example, between adjacent black solar cells 31 of adjacent battery strings, i.e., at the gap between adjacent battery strings. Additionally, in some possible embodiments, the label 6 may also be located at the gap between adjacent black solar cells 31 within a battery string, i.e., at the inter-cell gap between adjacent black solar cells 31.

[0062] As one embodiment of this utility model, it also includes:

[0063] The black background layer 8 is located between the back adhesive film 2 and the colored reflective layer 4, and the black background layer 8 does not overlap with the label 6 and the black solar cell 31.

[0064] In this embodiment, the black background layer 8 is located between the back adhesive film 2 and the colored reflective layer 4, and the black background layer 8 does not overlap with the label 6 and the black solar cell 31. That is, the black background layer 8 is set on the back adhesive film 2 at the position where the label 6 and the black solar cell 31 are not set. The front of the colored battery assembly 100 corresponding to the position where the label 6 and the black solar cell 31 are not set also presents color, which can further make the front appearance color of the colored battery assembly coordinated.

[0065] In this configuration, a black background layer 8 is provided at all non-labeling locations between the battery layer 3 and the frame 7. When there is a gap between adjacent black solar cells 31, a black background layer 8 is also provided between adjacent black solar cells 31, making the gap between the black solar cells 31 also colored, which can further make the front appearance of the colored battery module 100 more harmonious. Of course, in some embodiments, there may be no gap between adjacent black solar cells 31, in which case the black background layer 8 only needs to be provided at the non-labeling locations between the battery layer 3 and the frame 7.

[0066] In this embodiment, the black background layer 8 and the black base 61 of the label 6 can be integrally formed or separate. The materials of the black background layer 8 and the black base 61 of the label 6 can be the same or different.

[0067] As an embodiment of this utility model, the black background layer 8 is a stack of one or more of the following: PET layer, PVC layer, PE layer, and PP layer.

[0068] As one embodiment of this utility model, the thickness of the black background layer 8 is 0.05~3mm.

[0069] In this embodiment, the thickness of the black background layer 8 is controlled to be 0.05~3mm to avoid the black background layer 8 being too thin, to maintain the good light absorption performance of the black background layer 8, and to avoid the black substrate 61 being too thick, which would cause uneven stress during the lamination process, thus reducing the risk of cell cracking.

[0070] In one embodiment of this utility model, the black background layer 8 and the black substrate 61 have the same thickness, which makes the stress on the module more uniform during the lamination process and can reduce the risk of cracking of the black solar cell 31. More preferably, the black background layer 8, the black substrate 61 and the black solar cell 31 all have the same thickness, which makes the stress on the module more uniform during the lamination process and further reduces the risk of cracking of the black solar cell 31.

[0071] This invention also provides a photovoltaic system, which includes the color battery module 100 described in the above embodiments. It should be noted that this photovoltaic system has the same or similar beneficial effects as the color battery module 100, and the related aspects between the two can be referred to each other; to avoid repetition, they will not be repeated here.

[0072] In this embodiment, the photovoltaic system can be applied in photovoltaic power plants, such as ground-mounted power plants, rooftop power plants, and floating power plants. It can also be applied to equipment or devices that utilize solar energy to generate electricity, such as user solar power supplies, solar streetlights, solar cars, and solar buildings. Of course, it is understood that the application scenarios of the photovoltaic system are not limited to these; that is, the photovoltaic system can be applied in all fields that require solar energy to generate electricity. Taking a photovoltaic power generation system network as an example, the photovoltaic system may include a photovoltaic array, a combiner box, and an inverter. The photovoltaic array may be an array combination of multiple colored battery modules 100. For example, multiple colored battery modules 100 can form multiple photovoltaic arrays. The photovoltaic array is connected to the combiner box, which can collect the current generated by the photovoltaic array. The collected current flows through the inverter and is converted into AC power required by the mains power grid before being connected to the mains power grid to achieve solar power supply.

[0073] In the description of this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A colored battery assembly, characterized in that, It includes a back encapsulation layer, a back adhesive film, a battery layer, a colored reflective layer, and a front glass, which are stacked in sequence. The battery layer includes a plurality of black solar cells. The colored battery assembly includes a label located between the back adhesive film and the colored reflective layer, and the label does not overlap with the position of the black solar cell. The label includes a black substrate and an identifier disposed on the black substrate near the colored reflective layer.

2. The color battery assembly according to claim 1, characterized in that, Also includes: The frame, the back encapsulation layer, the back adhesive film, the battery layer, the colored reflective layer, and the front glass are fixed inside the frame, and the label is located between the black solar cell at the edge of the battery layer and the frame.

3. The color battery assembly according to claim 1, characterized in that, The color reflective layer is one or more of the following: EVA layer, POE layer, and PVB layer.

4. The color battery assembly according to claim 1, characterized in that, The thickness of the colored reflective layer is 0.1~2mm.

5. The color battery assembly according to claim 1, characterized in that, The black substrate is a laminate of one or more of the following: PET layer, PVC layer, PE layer, and PP layer.

6. The color battery assembly according to claim 1, characterized in that, The thickness of the black substrate is 0.05~3mm.

7. The color battery assembly according to claim 1, characterized in that, Also includes: A black background layer is located between the back adhesive film and the colored reflective layer, and the black background layer does not overlap with the position of the label and the black solar cell.

8. The color battery assembly according to claim 7, characterized in that, The black background layer is a composite of one or more of the following: PET layer, PVC layer, PE layer, and PP layer.

9. The color battery assembly according to claim 7, characterized in that, The thickness of the black background layer is 0.05~3mm.

10. The color battery assembly according to claim 7, characterized in that, The black background layers have the same thickness as the black base.

11. The color battery assembly according to claim 7, characterized in that, The black background layer, the black substrate, and the black solar cell are all of the same thickness.

12. The color battery assembly according to claim 1, characterized in that, The black substrate has a reflectivity of less than 10% for light with wavelengths in the range of 380 to 750 nanometers.

13. The color battery assembly according to claim 1, characterized in that, The markings are either colored or white.

14. The color battery assembly according to claim 1, characterized in that, The identifier is one or a combination of text, graphics, barcode, and QR code.

15. A photovoltaic system, characterized in that, Includes the color battery assembly as described in any one of claims 1 to 14.

Images