Flexible film photovoltaic cell module

Abstract

The utility model relates to the field of photovoltaic cells, and provides a flexible film photovoltaic cell module which at least comprises a first flexible film photovoltaic cell piece, a second flexible film photovoltaic cell piece and a connecting assembly. The first flexible film photovoltaic cell piece and the second flexible film photovoltaic cell piece are connected in series through a connecting assembly; the connecting assembly comprises a first connecting part, a middle part and a second connecting part; the first connecting part comprises a first conductive adhesive tape and a first insulating adhesive tape; the second connecting part comprises a second conductive adhesive tape and a second insulating adhesive tape; the middle part comprises a third conductive adhesive tape, a third insulating adhesive tape and a fourth insulating adhesive tape; the first conductive adhesive tape, the second conductive adhesive tape and the third conductive adhesive tape are electrically connected. The flexible thin film photovoltaic cell module is used for overcoming the defects that the series connection reliability of flexible thin film photovoltaic cell pieces is low and the utilization rate of the effective area of a power generation assembly is low, the series connection stability can be improved by improving the series connection structure of the flexible thin film photovoltaic cell module, and the utilization rate of the effective area of power generation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, in particular to a flexible thin-film photovoltaic cell module. Background Art

[0002] Solar energy holds great promise as a renewable energy source. Crystalline silicon cells are the mainstream technology in today's photovoltaic sector, holding over 90% of the market share and primarily used in large-scale, centralized ground-based power stations. Flexible thin-film photovoltaic cells overcome the shortcomings of crystalline silicon cells, offering excellent flexibility, light weight, no hidden cracks, no frame, no need for brackets, resistance to shock and vibration, easy installation and removal, and low system cost. They can be used in centralized and distributed photovoltaic power stations, integrated building photovoltaics, transportation and public facilities, portable power banks, and other applications. They have a wide range of applications and offer advantages unmatched by crystalline silicon cells.

[0003] Flexible thin-film photovoltaic power generation modules are usually made by arranging many flexible photovoltaic cells in series. Flexible thin-film photovoltaic cells usually use a metal substrate and a transparent conductive film on the light-receiving side, and the two constitute the positive and negative poles of the cell. There are many ways to electrically connect flexible thin-film photovoltaic cells to each other, such as pressing metal wires, welding tin-copper strips, and gluing metal foils, but all of them have some problems. For example, when pressing metal wires, multiple bends may cause the metal wires to separate from the surface of the cell, reducing the reliability of the connection; welding tin-copper strips has high equipment and technical requirements, complex processes, and may break after multiple bends; gluing metal foils also has problems such as high equipment requirements and complex processes.

[0004] The above problems will reduce the reliability of flexible thin-film photovoltaic cell series connection, reduce the effective area utilization of power generation components, and thus reduce the power and service life of power generation components, and increase the manufacturing cost of flexible thin-film power generation components. Utility Model Content

[0005] The utility model provides a flexible thin-film photovoltaic cell module to solve the defects of low reliability of flexible thin-film photovoltaic cell series connection and low effective area utilization of power generation components. In the solution of the present application, the series connection structure of the flexible thin-film photovoltaic cell module is improved, so as to improve the series connection stability and the effective area utilization of power generation.

[0006] The utility model provides a flexible thin-film photovoltaic cell module, comprising at least a first flexible thin-film photovoltaic cell sheet, a second flexible thin-film photovoltaic cell sheet and a connection assembly; the first flexible thin-film photovoltaic cell sheet and the second flexible thin-film photovoltaic cell sheet are connected in series via the connection assembly;

[0007] The first flexible thin-film photovoltaic cell sheet and the second flexible thin-film photovoltaic cell sheet each include a bottom surface and a top surface that are oppositely disposed, and the connecting assembly includes a first connecting portion, a middle portion, and a second connecting portion;

[0008] The first connecting portion includes a first conductive tape and a first insulating tape, and a side of the first conductive tape that is not in contact with the first insulating tape is in contact with the bottom surface of the first flexible thin-film photovoltaic cell;

[0009] The second connecting portion includes a second conductive tape and a second insulating tape, and a side of the second conductive tape that is not in contact with the second insulating tape is in contact with the top surface of the second flexible thin-film photovoltaic cell;

[0010] The middle portion includes a third conductive tape, a third insulating tape and a fourth insulating tape, wherein the third conductive tape is arranged in a sandwich formed by the third insulating tape and the fourth insulating tape;

[0011] The first conductive tape, the second conductive tape, and the third conductive tape form an electrical connection.

[0012] According to the flexible thin-film photovoltaic cell module provided by the present invention, the first conductive tape, the second conductive tape and the third conductive tape are one conductive tape.

[0013] According to the flexible thin-film photovoltaic cell module provided by the present invention, the side of the first conductive tape that is not in contact with the first flexible thin-film photovoltaic cell sheet is completely covered by the first insulating tape;

[0014] The side of the second conductive tape that is not in contact with the second flexible thin-film photovoltaic cell is completely covered by the second insulating tape.

[0015] According to the flexible thin-film photovoltaic cell module provided by the present utility model, the first insulating tape and the third insulating tape are the same insulating tape;

[0016] The second insulating tape and the fourth insulating tape are the same insulating tape.

[0017] According to the flexible thin-film photovoltaic cell module provided by the present invention, the length of the first insulating tape is consistent with the length of the first conductive tape, and the setting position of the first insulating tape corresponds to the setting position of the first conductive tape;

[0018] The length of the second insulating tape is consistent with that of the second conductive tape, and the setting position of the second insulating tape corresponds to the setting position of the second conductive tape.

[0019] According to the flexible thin-film photovoltaic cell module provided by the present invention, the first insulating tape includes a first section and a second section, the length of the first section is consistent with the length of the first conductive tape, and the setting position of the first section corresponds to the setting position of the first conductive tape, and the second section is in contact with the bottom surface of the first flexible thin-film photovoltaic cell sheet;

[0020] The second insulating tape includes a third section and a fourth section, the length of the third section is consistent with the length of the second conductive tape, and the setting position of the third section corresponds to the setting position of the second conductive tape, and the fourth section is in contact with the top surface of the second flexible thin-film photovoltaic cell.

[0021] According to the flexible thin-film photovoltaic cell module provided by the present invention, a metal grid line is provided on the top surface of the first flexible thin-film photovoltaic cell sheet;

[0022] A metal grid line is provided on the top surface of the second flexible thin-film photovoltaic cell sheet.

[0023] According to the flexible thin-film photovoltaic cell module provided by the present utility model, the metal grid lines on the top surface of the first flexible thin-film photovoltaic cell sheet are arranged linearly;

[0024] The metal grid lines on the top surface of the second flexible thin-film photovoltaic cell are arranged linearly.

[0025] According to the flexible thin-film photovoltaic cell module provided by the present utility model, a metal substrate is provided on the bottom surface of the first flexible thin-film photovoltaic cell sheet;

[0026] A metal substrate is provided on the bottom surface of the second flexible thin-film photovoltaic cell sheet.

[0027] In the flexible thin-film photovoltaic cell module provided by the present invention, two cells can be connected in series through a connecting component, wherein the connecting component includes a conductive tape, which can ensure the circuit connectivity between the two cells. At the same time, an insulating tape is also provided around the conductive tape. The insulating tape can protect the conductive tape from being connected to the external environment and other structures of the cell, prevent the risk of short circuit, and improve the stability of the flexible thin-film photovoltaic cell. On the other hand, the two cells do not directly overlap, but the bottom of one cell is connected in series with the top of the other cell through the connecting component. In this way, the defect of reduced effective power generation area due to overlapping cells is avoided, and the effective area utilization rate of the power generation component is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is one of the structural schematic diagrams of the flexible thin-film photovoltaic cell module provided by the present utility model;

[0030] Figure 2 This is the second structural schematic diagram of the flexible thin-film photovoltaic cell module provided by the utility model.

[0031] in:

[0032] 1-first flexible thin-film photovoltaic cell; 2-second flexible thin-film photovoltaic cell;

[0033] 3-first conductive tape; 4-first insulating tape; 5-second conductive tape;

[0034] 6-second insulating tape; 7-third conductive tape; 8-third insulating tape;

[0035] 9- Fourth insulation tape. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Figure 1 This is one of the structural schematic diagrams of the flexible thin-film photovoltaic cell module provided by the utility model.

[0038] Figure 2 This is the second structural schematic diagram of the flexible thin-film photovoltaic cell module provided by the utility model.

[0039] in Figure 1 This is a cross-sectional view of the flexible thin-film photovoltaic cell module provided in this embodiment. Figure 2 This is a schematic diagram of the three-dimensional structure of the flexible thin-film photovoltaic cell module provided in this embodiment.

[0040] like Figure 1 and Figure 2As shown, this embodiment provides a flexible thin-film photovoltaic cell module, comprising at least a first flexible thin-film photovoltaic cell sheet 1, a second flexible thin-film photovoltaic cell sheet 2, and a connection assembly; the first flexible thin-film photovoltaic cell sheet 1 and the second flexible thin-film photovoltaic cell sheet 2 are connected in series via the connection assembly;

[0041] The first flexible thin-film photovoltaic cell sheet 1 and the second flexible thin-film photovoltaic cell sheet 2 each include a bottom surface and a top surface that are oppositely disposed, and the connecting assembly includes a first connecting portion, a middle portion, and a second connecting portion;

[0042] The first connecting portion includes a first conductive tape 3 and a first insulating tape 4, and a side of the first conductive tape 3 that is not in contact with the first insulating tape 4 is in contact with the bottom surface of the first flexible thin-film photovoltaic cell 1;

[0043] The second connecting portion includes a second conductive tape 5 and a second insulating tape 6, and a side of the second conductive tape 5 that is not in contact with the second insulating tape 6 is in contact with the top surface of the second flexible thin-film photovoltaic cell 2;

[0044] The middle portion includes a third conductive tape 7, a third insulating tape 8 and a fourth insulating tape 9, wherein the third conductive tape 7 is arranged in a sandwich formed by the third insulating tape 8 and the fourth insulating tape 9;

[0045] The first conductive tape 3 , the second conductive tape 5 , and the third conductive tape 7 form an electrical connection.

[0046] The flexible thin film photovoltaic cell sheet in this embodiment includes a bottom surface and a top surface. The bottom surface and the top surface mentioned here are relative. That is, the connection method between the flexible thin film photovoltaic cell sheets in this embodiment can be as follows: Figure 1 The bottom surface of the left battery cell is shown to be connected to the top surface of the right battery cell, or the top surface of the left battery cell is connected to the bottom surface of the right battery cell.

[0047] Electrodes are provided on the top and bottom surfaces of the photovoltaic cell, and the polarities of the electrodes on the top and bottom surfaces are opposite.

[0048] In practical applications, a flexible thin-film photovoltaic cell module may be composed of a plurality of cells and a plurality of connection components for connecting the cells, and all the internal connection components may be in the same direction or in different directions.

[0049] In implementation, the connecting component can be composed of a conductive tape and an insulating tape. In this way, the formed connecting component is flexible as a whole, that is, the distance between the two battery cells can be flexibly adjusted according to the needs during actual use. When the distance between the two battery cells is shortened, the two battery cells can be separated by the middle part of the connecting component. Since the conductive tape is arranged in the interlayer of the third insulating tape 8 and the fourth insulating tape 9 in the middle part of the connecting component, that is, the conductive tape can be protected by the third insulating tape 8 and the fourth insulating tape 9 to avoid the problem of short circuit caused by direct contact between the two battery cells. At the same time, the provision of the third insulating tape 8 and the fourth insulating tape 9 can also play a certain protective role for the conductive tape, avoiding the conductive tape from being disturbed by the outside world and causing short circuit problems, and can also avoid the conductive tape from being damaged by external blunt force or sharp force to a certain extent, thereby improving the stability of the flexible thin-film photovoltaic cell series connection process.

[0050] In practice, the thickness of the first flexible thin-film photovoltaic cell 1 in this embodiment can be 70 microns.

[0051] In actual applications, since the conductive tape will block light when pasted on the top of the battery cell, thereby affecting the power generation performance, while this problem does not exist when pasted on the bottom, the width of the tape area pasted on the top should be as small as possible, but if it is too small, it will affect the adhesion and connection reliability. The tape pasted on the bottom will not block light, so the area width can be relaxed to enhance the adhesion and connection reliability. Based on this, in implementation, the width of the first conductive tape 3 can be between 1 and 10 mm, preferably 5 mm, and the width of the second conductive tape 5 can be between 1 and 5 mm, preferably 3 mm.

[0052] from Figure 1 It can be seen that the middle part can be composed of three parts, among which the part connected to the first connecting part is also attached to the first flexible thin-film photovoltaic cell 1, and the width of this part can generally be more than 0.5 mm; the part connected to the second connecting part is attached to the second flexible thin-film photovoltaic cell 2, and the width of this part can generally be more than 0.5 mm.

[0053] In the solution of this embodiment, after the first flexible thin-film photovoltaic cell 1 and the second flexible thin-film photovoltaic cell 2 are connected by conductive tape and insulating tape, the reliability of the connection structure can be enhanced by a lamination process. Specifically, the temperature during the lamination process can be 120 to 180 degrees Celsius, preferably 150 degrees Celsius, and the lamination time can be 5 to 30 minutes, preferably 20 minutes.

[0054] In the flexible thin-film photovoltaic cell module provided in this embodiment, two cells can be connected in series through a connecting component, wherein the connecting component includes a conductive tape, which can ensure the circuit connectivity between the two cells. At the same time, an insulating tape is also provided around the conductive tape. The insulating tape can protect the conductive tape from being connected to the external environment and other structures of the cell, prevent the risk of short circuit, and improve the stability of the flexible thin-film photovoltaic cell module. On the other hand, the two cells do not overlap directly, but the bottom of one cell is connected in series with the top of the other cell through the connecting component. In this way, the defect of reduced effective power generation area due to overlapping cells is avoided, and the effective area utilization rate of the power generation component is improved.

[0055] In an exemplary embodiment, the first conductive tape 3 , the second conductive tape 5 , and the third conductive tape 7 are one conductive tape.

[0056] In practical applications, the first conductive tape 3, the second conductive tape 5 and the third conductive tape 7 in the connection assembly can be a complete conductive tape. In this way, the problem of unstable connection between each other caused by using three conductive tapes can be avoided, which leads to unstable connection between battery cells.

[0057] In an exemplary embodiment, the side of the first conductive tape 3 that is not in contact with the first flexible thin-film photovoltaic cell 1 is completely covered by the first insulating tape 4;

[0058] The side of the second conductive tape 5 that is not in contact with the second flexible thin-film photovoltaic cell 2 is completely covered by the second insulating tape 6 .

[0059] During implementation, the first conductive tape 3 is completely covered by the first insulating tape 4 in order to improve the safety of the first conductive tape 3 and the stability of the connection between the first conductive tape 3 and the first flexible thin-film photovoltaic cell 1, to prevent the side of the first conductive tape 3 that is not in contact with the first flexible thin-film photovoltaic cell 1 from contacting other structures of the cell to cause a short circuit, and to reduce damage to the first conductive tape 3 by external structures to a certain extent.

[0060] Similarly, completely covering the second conductive tape 5 with the second conductive tape 5 is also to improve the safety of the second conductive tape 5 and improve the stability of the connection between the second conductive tape 5 and the second flexible thin-film photovoltaic cell 2, to prevent the side of the second conductive tape 5 that is not in contact with the second flexible thin-film photovoltaic cell 2 from contacting other structures of the cell to cause a short circuit, and to reduce damage to the second conductive tape 5 by external structures to a certain extent.

[0061] In an exemplary embodiment, the first insulating tape 4 and the third insulating tape 8 are the same insulating tape;

[0062] The second insulating tape 6 and the fourth insulating tape 9 are the same insulating tape.

[0063] In practice, the first insulating tape 4 and the third insulating tape 8 are the same tape to avoid the risk of holes appearing at the connection between the first insulating tape 4 and the third insulating tape 8, which may expose the conductive tape and cause a short circuit or damage.

[0064] Similarly, the second insulating tape 6 and the fourth insulating tape 9 are the same piece, which can also avoid the risk of holes appearing at the connection between the second insulating tape 6 and the fourth insulating tape 9, which may cause the conductive tape therein to be exposed and cause a short circuit or damage.

[0065] In an exemplary embodiment, the length of the first insulating tape 4 is consistent with that of the first conductive tape 3 , and the setting position of the first insulating tape 4 corresponds to the setting position of the first conductive tape 3 ;

[0066] The length of the second insulating tape 6 is consistent with that of the second conductive tape 5 , and the setting position of the second insulating tape 6 corresponds to the setting position of the second conductive tape 5 .

[0067] During implementation, the length of the first insulating tape 4 is consistent with the length of the first conductive tape 3, and the setting positions of the two correspond, so that the first conductive tape 3 can be completely covered by the first insulating tape 4, thereby enhancing the safety of the first conductive tape 3 and the stability of the connection.

[0068] Similarly, the length of the second insulating tape 6 is consistent with the length of the second conductive tape 5, and the two are set at corresponding positions, so that the second conductive tape 5 can be completely covered by the second insulating tape 6, thereby enhancing the safety of the second conductive tape 5 and the stability of the connection.

[0069] In an exemplary embodiment, the first insulating tape 4 includes a first section and a second section, the length of the first section is consistent with the length of the first conductive tape 3, and the setting position of the first section corresponds to the setting position of the first conductive tape 3, and the second section is in contact with the bottom surface of the first flexible thin-film photovoltaic cell 1;

[0070] The second insulating tape 6 includes a third section and a fourth section. The length of the third section is consistent with the length of the second conductive tape 5, and the setting position of the third section corresponds to the setting position of the second conductive tape 5. The fourth section contacts the top surface of the second flexible thin-film photovoltaic cell 2.

[0071] In actual applications, the first insulating tape 4 is provided with a second section when the first section is the same length as the first conductive tape 3. The second section is in direct contact with the bottom surface of the first flexible thin-film photovoltaic cell 1. In this way, the extra second section can, on the one hand, improve the fixing stability of the tape and the cell and prevent the tape from falling off. On the other hand, the second section can also improve the protection effect of the first conductive tape 3 and prevent the first conductive tape 3 from short-circuiting or being damaged by contact with other external components.

[0072] Similarly, when the third section of the second insulating tape 6 is the same length as the second conductive tape 5, a fourth section is also provided. The fourth section directly contacts the top surface of the second flexible thin-film photovoltaic cell 2. In this way, the extra fourth section can, on the one hand, improve the fixing stability of the tape and the cell and prevent the tape from falling off. On the other hand, the fourth section can also improve the protection effect of the second conductive tape 5 and prevent the second conductive tape 5 from short-circuiting or being damaged by contact with other external components.

[0073] In an exemplary embodiment, a metal grid line is provided on the top surface of the first flexible thin-film photovoltaic cell sheet 1;

[0074] A metal grid line is provided on the top surface of the second flexible thin-film photovoltaic cell sheet 2 .

[0075] In practice, the grid lines of photovoltaic cells are an important component of the metal electrodes on the front of the photovoltaic cells. Their main function is to collect and transmit photogenerated carriers, thereby realizing the conversion of solar energy into electrical energy. The number, width, height and shape of the grid lines can have an important impact on the performance of solar cells. By adjusting factors such as the number, width, height and shape of the metal grid lines, the photovoltaic cells can achieve the best photoelectric conversion rate and output power.

[0076] In practical applications, methods for preparing metal grid lines include, but are not limited to, printing conductive paste grid lines, pressing metal wire grid lines, and pasting metal foil grid lines.

[0077] In an exemplary embodiment, the metal grid lines on the top surface of the first flexible thin-film photovoltaic cell sheet 1 are arranged linearly;

[0078] The metal grid lines on the top surface of the second flexible thin-film photovoltaic cell sheet 2 are arranged linearly.

[0079] The linear arrangement of metal grid lines can help reduce the width of the fine grid, increase the number of main grids, and thus improve the conversion efficiency and overall performance of photovoltaic cells, thereby maximizing the performance advantages of photovoltaic cells.

[0080] In an exemplary embodiment, a metal substrate is provided on the bottom surface of the first flexible thin-film photovoltaic cell sheet 1;

[0081] The bottom surface of the second flexible thin-film photovoltaic cell sheet 2 is provided with a metal substrate.

[0082] The metal substrate of photovoltaic cells is an important link in the photovoltaic cell manufacturing process and is closely related to the improvement of cell efficiency. The main function of the metal substrate of photovoltaic cells is to provide support for the thin film and to form the back electrode of the photovoltaic cell, which helps to reduce resistance loss and thus improve the conversion efficiency of the cell.

[0083] In practice, the material of the metal substrate includes but is not limited to stainless steel foil, copper foil, and titanium foil, and the thickness of the metal substrate is 20 to 100 microns, preferably 50 microns.

[0084] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units. That is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Flexible thin-film photovoltaic cell module, characterized in that: At least comprising a first flexible thin-film photovoltaic cell, a second flexible thin-film photovoltaic cell and a connection assembly; the first flexible thin-film photovoltaic cell and the second flexible thin-film photovoltaic cell are connected in series via the connection assembly; The first flexible thin-film photovoltaic cell sheet and the second flexible thin-film photovoltaic cell sheet each include a bottom surface and a top surface that are oppositely disposed, and the connecting assembly includes a first connecting portion, a middle portion, and a second connecting portion; The first connecting portion includes a first conductive tape and a first insulating tape, and a side of the first conductive tape that is not in contact with the first insulating tape is in contact with the bottom surface of the first flexible thin-film photovoltaic cell; The second connecting portion includes a second conductive tape and a second insulating tape, and a side of the second conductive tape that is not in contact with the second insulating tape is in contact with the top surface of the second flexible thin-film photovoltaic cell; The middle portion includes a third conductive tape, a third insulating tape and a fourth insulating tape, wherein the third conductive tape is arranged in a sandwich formed by the third insulating tape and the fourth insulating tape; The first conductive tape, the second conductive tape, and the third conductive tape form an electrical connection.

2. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: The first conductive tape, the second conductive tape, and the third conductive tape form one conductive tape.

3. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: The side of the first conductive tape that is not in contact with the first flexible thin-film photovoltaic cell is completely covered by the first insulating tape; The side of the second conductive tape that is not in contact with the second flexible thin-film photovoltaic cell is completely covered by the second insulating tape.

4. The flexible thin-film photovoltaic cell module according to claim 3, characterized in that: The first insulating tape and the third insulating tape are the same insulating tape; The second insulating tape and the fourth insulating tape are the same insulating tape.

5. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: The length of the first insulating tape is consistent with that of the first conductive tape, and the setting position of the first insulating tape corresponds to the setting position of the first conductive tape; The length of the second insulating tape is consistent with that of the second conductive tape, and the setting position of the second insulating tape corresponds to the setting position of the second conductive tape.

6. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: The first insulating tape includes a first section and a second section, the length of the first section is consistent with the length of the first conductive tape, and the setting position of the first section corresponds to the setting position of the first conductive tape, and the second section is in contact with the bottom surface of the first flexible thin-film photovoltaic cell; The second insulating tape includes a third section and a fourth section, the length of the third section is consistent with the length of the second conductive tape, and the setting position of the third section corresponds to the setting position of the second conductive tape, and the fourth section is in contact with the top surface of the second flexible thin-film photovoltaic cell.

7. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: A metal grid line is provided on the top surface of the first flexible thin-film photovoltaic cell sheet; A metal grid line is provided on the top surface of the second flexible thin-film photovoltaic cell sheet.

8. The flexible thin-film photovoltaic cell module according to claim 7, characterized in that: The metal grid lines on the top surface of the first flexible thin-film photovoltaic cell are arranged linearly; The metal grid lines on the top surface of the second flexible thin-film photovoltaic cell are arranged linearly.

9. The flexible thin-film photovoltaic cell module according to claim 1, characterized in that: The bottom surface of the first flexible thin-film photovoltaic cell sheet is provided with a metal substrate; A metal substrate is provided on the bottom surface of the second flexible thin-film photovoltaic cell sheet.

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