Thin film solar cell and solar cell module

Abstract

The utility model provides a thin-film solar cell and a solar cell module, and the thin-film solar cell comprises a glass chip which comprises a glass substrate and a film layer group arranged on the glass substrate, and the edge of the film layer group is provided with two first gaps; the first sealing pieces are arranged at the first notches; the two bus bars are arranged on the film layer group, and the output ends of the two bus bars are respectively led out from the two first notches; the second sealing element is arranged on the glass substrate and surrounds the circumferential outer side of the film layer group, and the output end of the bus bar is clamped between the first sealing element and the second sealing element; the back plate glass is arranged on the second sealing piece in a covering manner; and the junction box is arranged on the backboard glass and is opposite to the two first notches, and the output end of the bus bar extends into the junction box. By applying the technical scheme of the utility model, the problem that the light shielding phenomenon of the junction box of the thin-film solar cell in the prior art is serious can be effectively solved.

Description

Technical Field

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

[0002] At present, the mainstream encapsulation technology in the process of encapsulating solar cell modules is back connection. One or more junction boxes are fixed behind the solar cell module. During the installation process of a solar power station, the lead-out wires of the junction boxes are connected to each other to form a matrix of battery modules.

[0003] However, for a BIPV system, the junction boxes and wiring fixed on the back will affect the light incident on the agricultural greenhouse, and the phenomenon of light shielding is serious.

[0004] To solve the above problems, side connection can also be used for encapsulating solar cell modules. However, in order to ensure insulation safety, the junction box installed on the side of the solar cell module is thicker than the module, the contact is not firm, and it is easy to be knocked off. At the same time, the junction box is on the side, and the junction box and wiring will be buried in the structural adhesive, making it difficult to install and maintain. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a thin-film solar cell and a solar cell module to solve the problem of serious light shielding of the junction box of the thin-film solar cell in the prior art.

[0006] To achieve the above object, according to one aspect of the present utility model, a thin-film solar cell is provided, including: a glass chip, including a glass substrate and a film layer group disposed on the glass substrate, the film layer group including a plurality of film layers stacked, two first notches are disposed on the edge of the film layer group, and the area between the edge of the film layer group and the glass substrate is a clear edge area A, wherein the two first notches are arranged at intervals on the same edge of the film layer group, or the two first notches are disposed on the opposite two edges of the film layer group, or the two first notches are disposed at two corners on the same side of the film layer group; a first sealant, a first sealant is disposed at each first notch; two bus bars, disposed on the film layer group, the two bus bars are a cathode bus bar and an anode bus bar respectively, and the output ends of the cathode bus bar and the anode bus bar are respectively led out from the two first notches; a second sealant, disposed on the glass substrate and surrounding the circumferential outside of the film layer group, and the output ends of the cathode bus bar and the anode bus bar are clamped between the first sealant and the second sealant; a back plate glass, covering the second sealant, and a relief opening for avoiding the output ends of the cathode bus bar and the anode bus bar is disposed on the back plate glass; a junction box, disposed on the back plate glass and opposite to the two first notches, and the output ends of the cathode bus bar and the anode bus bar extend into the junction box.

[0007] In one embodiment, there are two junction boxes corresponding one by one to the first notches, or there is one junction box covering all the first notches.

[0008] In one embodiment, when there are two junction boxes, a male plug is provided on one of the two junction boxes, and a female plug mating with the male plug is provided on the other, or female plugs are provided on both of the two junction boxes; when there is one junction box, a male plug and a female plug mating with the male plug are provided on the junction box.

[0009] In one embodiment, the first notch is an arc-shaped notch.

[0010] In one embodiment, the avoidance openings are two second notches corresponding one by one to the two first notches.

[0011] In one embodiment, there is an encapsulation layer between the backplane glass and the film layer group.

[0012] In one embodiment, the glass chip is a CdTe chip, a ClGs chip or a perovskite chip.

[0013] According to another aspect of the present invention, a solar cell module is provided, which includes a plurality of thin-film solar cells, and the thin-film solar cells are the above-mentioned thin-film solar cells.

[0014] In one embodiment, when the two first notches of the thin-film solar cell are arranged at intervals on the same edge of the film layer group, and when the two first notches of the thin-film solar cell are arranged at two corners on the same side of the film layer group, the edges on both sides of the edge of the thin-film solar cell having the first notch are respectively the first cell edge and the second cell edge, and the first cell edge of the thin-film solar cell is opposite to the second cell edge of another thin-film solar cell.

[0015] In one embodiment, when the two first notches of the thin-film solar cell are arranged on opposite edges of the film layer group, the sides where the two first notches of the thin-film solar cell are located are respectively the third cell edge and the fourth cell edge, and the third cell edge of the thin-film solar cell is opposite to the fourth cell edge of another thin-film solar cell.

[0016] Applying the technical solution of the present utility model, on the basis of the conventional edge cleaning of the thin-film solar cell, appropriate edge cleaning is also required at a preset position on the edge of the film layer group after the conventional edge cleaning to complete the edge cleaning operation. There are two first notches at the edge of the film layer group after the edge cleaning is completed. The output ends of the cathode bus bar and the anode bus bar extend out from the two first notches and then extend into the corresponding junction box. The above structure has at least the following three advantages: First, the thin-film solar cell still adopts the back-contact form. Due to the existence of the first notch, the output end of the bus bar can be designed as close to the edge as possible, so that the junction box can be arranged as close to the edge as possible and as small as possible, thereby reducing the light shielding of the junction box. Second, due to the adaptive edge cleaning at the corresponding film layer group at the junction box, the junction box can ensure insulation safety. Third, since the junction box is arranged at the edge of the thin-film solar cell, when multiple thin-film solar cells are connected, the wiring between two thin-film solar cells is very short, which is easy to install and maintain.

[0017] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings to make a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 It shows a schematic structural diagram after the process step S10 of the first embodiment of the thin-film solar cell according to the present utility model;

[0020] Figure 2 It shows a schematic structural diagram after the process step S20 of the first embodiment of the thin-film solar cell according to the present utility model;

[0021] Figure 3 It shows a schematic structural diagram after the process step S30 of the first embodiment of the thin-film solar cell according to the present utility model;

[0022] Figure 4 It shows a schematic structural diagram after the process step S40 of the first embodiment of the thin-film solar cell according to the present utility model;

[0023] Figure 5 It shows a schematic structural diagram after the process step S60 of the first embodiment of the thin-film solar cell according to the present utility model;

[0024] Figure 6Shows a schematic structural diagram after process step S90 of Embodiment 1 of the thin-film solar cell according to the present utility model;

[0025] Figure 7 Shows Figure 6 a three-dimensional cross-sectional view of the thin-film solar cell;

[0026] Figure 8 Shows Figure 6 a structural diagram of the thin-film solar cell after removing the junction box;

[0027] Figure 9 Shows a schematic structural diagram after process step S10 of Embodiment 2 of the thin-film solar cell according to the present utility model;

[0028] Figure 10 Shows a schematic structural diagram after process step S10 of Embodiment 3 of the thin-film solar cell according to the present utility model;

[0029] Figure 11 Shows a schematic structural diagram of Embodiment 1 of the solar cell module according to the present utility model;

[0030] Figure 12 Shows a schematic structural diagram of Embodiment 2 of the solar cell module according to the present utility model; and

[0031] Figure 13 Shows a schematic structural diagram of Embodiment 3 of the solar cell module according to the present utility model.

[0032] Among them, the above-mentioned drawings include the following reference numerals:

[0033] 10. Glass chip; 11. Glass substrate; 12. Film layer group; 121. First notch; 20. First seal; 30. Bus bar; 31. Cathode bus bar; 32. Anode bus bar; 40. Second seal; 50. Backplane glass; 60. Junction box; 70. Encapsulation layer; 80. Thin-film solar cell. Detailed implementation manners

[0034] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances for the embodiments of the present utility model described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Such as Figures 1 to 8As shown in the figure, the thin-film solar cell of Embodiment 1 includes: a glass chip 10, a first seal 20, two bus bars 30, a second seal 40, a back glass 50, and a junction box 60. Among them, the glass chip 10 includes a glass substrate 11 and a film layer group 12 disposed on the glass substrate 11. The film layer group 12 includes a plurality of film layers arranged in a stack. Two first notches 121 are provided on the edge of the film layer group 12. The area between the edge of the film layer group 12 and the glass substrate 11 is a clear edge area A. The two first notches 121 are provided at two corners on the same side of the film layer group 12. A first seal 20 is provided at each first notch 121. Two bus bars 30 are disposed on the film layer group 12. The two bus bars 30 are a cathode bus bar 31 and an anode bus bar 32 respectively. The output ends of the cathode bus bar 31 and the anode bus bar 32 are respectively led out from the two first notches 121. The second seal 40 is disposed on the glass substrate 11 and surrounds the circumferential outer side of the film layer group 12. The output ends of the cathode bus bar 31 and the anode bus bar 32 are clamped between the first seal 20 and the second seal 40. The back glass 50 is covered on the second seal 40. An avoidance opening 51 for avoiding the output ends of the cathode bus bar 31 and the anode bus bar 32 is provided on the back glass 50. The junction box 60 is disposed on the back glass 50 and is opposite to the two first notches 121. The output ends of the cathode bus bar 31 and the anode bus bar 32 extend into the junction box 60.

[0039] Applying the technical solution of Embodiment 1, on the basis of the conventional clear edge, the thin-film solar cell also needs to perform appropriate clear edge at the preset position on the edge of the film layer group 12 after the conventional clear edge to complete the clear edge operation. After the clear edge is completed, there are two first notches 121 at the edge of the film layer group 12. The output ends of the cathode bus bar 31 and the anode bus bar 32 extend out from the two first notches 121 and then extend into the corresponding junction box 60. The above structure has at least the following three advantages: First, the thin-film solar cell still adopts the back connection form. Due to the existence of the first notch 121, the output ends of the bus bars can be designed as close to the edge as possible, so that the junction box 60 can be arranged as close to the edge as possible and as small as possible, thereby reducing the light shielding of the junction box 60. Second, due to the adaptive clear edge at the corresponding film layer group 12 at the junction box 60, the junction box 60 can ensure insulation safety. Third, since the junction box is disposed at the edge of the thin-film solar cell, when multiple thin-film solar cells are connected, the wiring between the two thin-film solar cells is very short, which is easy to install and maintain.

[0040] It should be noted that the film layer group 12 includes film layers such as TCO, semiconductor film, and back electrode. The materials of the first seal 20 and the second seal 40 can be butyl rubber or other sealing materials.

[0041] It should also be noted that in this embodiment, since the junction box 60 of the thin-film solar cell is arranged particularly close to the edge, the light shielding range is small, which is particularly suitable for application scenarios that require light transmission, such as agricultural greenhouses. When applied to agricultural greenhouses, the thin-film solar cell is a transparent cell. In addition, in this embodiment, also because the junction box 60 of the thin-film solar cell is arranged particularly close to the edge, the electrical connection between two adjacent thin-film solar cells (whether transparent cells or non-transparent cells) is also very easy, which is easy to install and maintain.

[0042] As Figures 1 to 7 shown, in the first embodiment, there are two junction boxes 60 that correspond one-to-one to the first notches 121. The above structure makes the floor area of the two junction boxes 60 (occupying the area of the thin-film solar cell) as small as possible, thereby further reducing the light shielding of the agricultural greenhouse by the junction box 60.

[0043] In the first embodiment, a male plug (not shown in the figure) is provided on one of the two junction boxes 60, and a female plug (not shown in the figure) that mates with the male plug is provided on the other. The above structure enables two adjacent thin-film solar cells to be directly connected by plugging the male plug and the female plug. The electrical connection between the two thin-film solar cells no longer requires wiring. On the one hand, it is easy to install and maintain, and on the other hand, it reduces the light shielding of the agricultural greenhouse by the wiring. Of course, in other embodiments shown in the figure, female plugs can be provided on both of the two junction boxes 60, and the two junction boxes are connected by a wire with male plugs at both ends.

[0044] As Figure 1 shown, in the first embodiment, the first notch 121 is an arc-shaped notch. The above structure enables the output end of the bus bar 30 to be more outwards on the basis of retaining as many film layer groups 12 as possible, ensuring the power generation ability of the thin-film solar cell.

[0045] In the first embodiment, the junction box 60 and the glass chip 10 are hermetically connected by a third seal (not shown in the figure). The above structure prevents water from entering and ensures the sealing performance of the entire thin-film solar cell.

[0046] After the output end of the bus bar 30 extends out from the first notch 121, it needs to be bent towards the backplane glass 50 to extend into the junction box 60 on the back of the backplane glass 50. To prevent the backplane glass 50 from interfering with the bus bar 30, as Figure 5 shown, in the first embodiment, the avoidance openings of the backplane glass 50 are two second notches that correspond one-to-one to the two first notches 121. The above structure enables the output end of the bus bar 30 to enter the junction box 60 after passing through the second notch.

[0047] As Figure 8As shown, in the first embodiment, there is a packaging layer 70 between the backplane glass 50 and the film layer group 12, which enables good electrical connection between the backplane glass 50 and the film layer group 12. It should be noted that the material of the packaging layer 70 is one of EVA, BOE, and POE.

[0048] In the first embodiment, the glass chip 10 is a CdTe chip. In other embodiments, the glass chip 10 is a ClGs chip or a perovskite chip.

[0049] The following specifically introduces the packaging process steps:

[0050] Step S10: On the basis of the conventional edge cleaning (usually laser, or it can also be mechanical) of the thin-film solar cell glass chip, appropriate edge cleaning can be carried out at the position where the side junction box is to be installed.

[0051] Step S20: Apply a small piece of edge sealant (the first seal 20) on the glass.

[0052] Step S30: Install the bus bar.

[0053] Step S40: Install the edge sealant (the second seal 40).

[0054] Step S50: Add packaging material (EVA, BOE, POE) inside the edge sealant.

[0055] Step S60: Cover the edge sealant with the backplane glass.

[0056] Step S70: Laminating.

[0057] Step S80: Bend the bus bar and apply sealant. It should be noted that the bus bar can also be directly bent when installing the bus bar.

[0058] Step S90: Install the corner junction box and apply potting compound.

[0059] The difference between the thin-film solar cell in the second embodiment and the thin-film solar cell in the first embodiment lies only in the positions of the two first notches 121. Specifically, as Figure 9As shown in the figure, in the second embodiment, the two first notches 121 of the thin-film solar cell are arranged at intervals on the same edge of the film layer group 12. The above structure also has at least the following three advantages: First, the thin-film solar cell still adopts the back-connection form. Due to the existence of the first notch 121, the output end of the bus bar can be designed as close to the edge as possible, so that the junction box 60 can be arranged as close to the edge as possible and as small as possible, thereby reducing the light shielding of the junction box 60 on the agricultural greenhouse. Second, due to the adaptive edge cleaning at the corresponding film layer group 12 of the junction box 60, the junction box 60 can ensure insulation safety. Third, since the junction box is arranged at the edge of the thin-film solar cell, when multiple thin-film solar cells are connected, the wiring between the two thin-film solar cells is very short, which is easy to install and maintain.

[0060] In the second embodiment, there are two junction boxes 60 arranged in one-to-one correspondence with the two first notches 121. Of course, in other embodiments, there is one junction box 60 covering all the first notches 121. The above structure is simple, simplifies the assembly steps, and improves the assembly efficiency. When there is one junction box 60, the junction box 60 is provided with a male plug and a female plug that mates with the male plug. The above structure enables adjacent two thin-film solar cells to be directly connected by plugging the male plug and the female plug. The electrical connection between the two thin-film solar cells no longer requires wiring. On the one hand, it is easy to install and maintain, and on the other hand, it reduces the light shielding of the wiring on the agricultural greenhouse.

[0061] It should be noted that the encapsulation process steps of the thin-film solar cell in the second embodiment are the same as those in the first embodiment, and will not be elaborated here.

[0062] The difference between the thin-film solar cell in the third embodiment and the thin-film solar cell in the first embodiment lies only in the positions of the two first notches 121. Specifically, as Figure 10 shown in the figure, in the third embodiment, the two first notches 121 are arranged on the opposite two edges of the film layer group 12. The above structure also has at least the following three advantages: First, the thin-film solar cell still adopts the back-connection form. Due to the existence of the first notch 121, the output end of the bus bar can be designed as close to the edge as possible, so that the junction box 60 can be arranged as close to the edge as possible and as small as possible, thereby reducing the light shielding of the junction box 60 on the agricultural greenhouse. Second, due to the adaptive edge cleaning at the corresponding film layer group 12 of the junction box 60, the junction box 60 can ensure insulation safety. Third, since the junction box is arranged at the edge of the thin-film solar cell, when multiple thin-film solar cells are connected, the wiring between the two thin-film solar cells is very short, which is easy to install and maintain.

[0063] It should be noted that the encapsulation process steps of the thin-film solar cell in the third embodiment are the same as those in the first embodiment, and will not be elaborated here.

[0064] The present application also provides a solar cell module. As Figure 11 shown, the solar cell module according to Embodiment 1 includes a plurality of thin-film solar cells 80, and the thin-film solar cells are the thin-film solar cells of the above-mentioned Embodiment 1. Since the above-mentioned thin-film solar cells have the advantages of reducing the light shielding of the junction box 60 to the agricultural greenhouse, ensuring insulation safety, being easy to install and maintain, etc., the solar cell module having the same also has the above-mentioned advantages.

[0065] As Figure 11 shown, in Embodiment 1, the edges on both sides of the edge of the thin-film solar cell 80 having the first notch 121 are respectively the first cell edge and the second cell edge, and the first cell edge of the thin-film solar cell 80 is opposite to the second cell edge of another thin-film solar cell 80. The above structure makes it easier to electrically connect the two thin-film solar cells 80.

[0066] The difference between the solar cell module of Embodiment 2 and the solar cell module of Embodiment 1 lies only in the position of the first notch 121 on the thin-film solar cell 80. Specifically, as Figure 12 shown, in Embodiment 2, the solar cell module includes a plurality of thin-film solar cells 80, and the thin-film solar cells are the thin-film solar cells of the above-mentioned Embodiment 2. The edges on both sides of the edge of the thin-film solar cell 80 having the first notch 121 are respectively the first cell edge and the second cell edge, and the first cell edge of the thin-film solar cell 80 is opposite to the second cell edge of another thin-film solar cell 80. It should be noted that in the above structure, the adjacent two thin-film solar cells need to be connected by wiring, and since the wiring is on the side, it does not affect the light transmission.

[0067] The difference between the solar cell module of Embodiment 3 and the solar cell module of Embodiment 1 lies only in the position of the first notch 121 on the thin-film solar cell 80. Specifically, as Figure 13 shown, in Embodiment 3, the solar cell module includes a plurality of thin-film solar cells 80, and the thin-film solar cells are the thin-film solar cells of the above-mentioned Embodiment 3. The sides where the two first notches 121 of the thin-film solar cell 80 are located are respectively the third cell edge and the fourth cell edge, and the third cell edge of the thin-film solar cell 80 is opposite to the fourth cell edge of another thin-film solar cell 80. The above structure makes it easier to electrically connect the two thin-film solar cells 80.

[0068] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0069] For the sake of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used here to describe the spatial positional relationship of one device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0070] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, top, bottom, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model; the orientation words "inside, outside" refer to inside and outside relative to the contour of each component itself.

[0071] The foregoing is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thin-film solar cell, characterized in that, Comprising: A glass chip (10), including a glass substrate (11) and a film layer group (12) disposed on the glass substrate (11). The film layer group (12) includes a plurality of film layers stacked. Two first notches (121) are provided on the edge of the film layer group (12). The area between the edge of the film layer group (12) and the edge of the glass substrate (11) is a clear edge area A. Among them, the two first notches (121) are arranged at intervals on the same edge of the film layer group (12), or the two first notches (121) are provided on two opposite edges of the film layer group (12), or the two first notches (121) are provided at two corners on the same side of the film layer group (12); A first seal (20), and a first seal (20) is provided at each of the first notches (121); Two bus bars (30), disposed on the film layer group (12). The two bus bars (30) are respectively a cathode bus bar (31) and an anode bus bar (32). The output ends of the cathode bus bar (31) and the anode bus bar (32) are respectively led out from the two first notches (121); A second seal (40), disposed on the glass substrate (11) and surrounding the outer circumference of the film layer group (12). The output ends of the cathode bus bar (31) and the anode bus bar (32) are clamped between the first seal (20) and the second seal (40); A backplane glass (50), covering the second seal (40). An avoidance opening (51) for avoiding the output ends of the cathode bus bar (31) and the anode bus bar (32) is provided on the backplane glass (50); A junction box (60), disposed on the backplane glass (50) and opposite to the two first notches (121). The output ends of the cathode bus bar (31) and the anode bus bar (32) extend into the junction box (60).

2. The thin-film solar cell according to claim 1, characterized in that, The junction box (60) is two corresponding one-to-one to the first notches (121), or the junction box (60) is one covering all the first notches (121).

3. The thin-film solar cell according to claim 2, characterized in that, In the case where the junction box (60) is two, a male plug is provided on one of the two junction boxes (60), and a female plug cooperating with the male plug is provided on the other, or female plugs are provided on both of the two junction boxes (60); in the case where the junction box (60) is one, a male plug and a female plug cooperating with the male plug are provided on the junction box (60).

4. The thin film solar cell according to claim 1, wherein The first notch (121) is an arc-shaped notch.

5. The thin film solar cell according to claim 1, characterized in that The avoidance opening is two second notches corresponding one-to-one to the two first notches (121).

6. The thin-film solar cell according to claim 1, wherein There is a packaging layer (70) between the backplane glass (50) and the film layer group (12).

7. The thin film solar cell according to claim 1, wherein The glass chip (10) is a CdTe chip, a ClGs chip or a perovskite chip.

8. A solar cell module, comprising a plurality of thin film solar cells (80), characterized in that, The thin-film solar cell is the thin-film solar cell according to any one of claims 1 to 7.

9. The solar cell module according to claim 8, wherein, When the two first notches (121) of the thin-film solar cell (80) are arranged at intervals on the same edge of the film layer group (12), and when the two first notches (121) of the thin-film solar cell (80) are provided at two corners on the same side of the film layer group (12), the edges on both sides of the edge of the thin-film solar cell (80) having the first notch (121) are respectively a first cell edge and a second cell edge, and the first cell edge of the thin-film solar cell (80) is opposite to the second cell edge of the other thin-film solar cell (80).

10. The solar cell module according to claim 8, wherein When the two first notches (121) of the thin-film solar cell (80) are provided on two opposite edges of the film layer group (12), the edges where the two first notches (121) of the thin-film solar cell (80) are located are respectively a third cell edge and a fourth cell edge, and the third cell edge of the thin-film solar cell (80) is opposite to the fourth cell edge of the other thin-film solar cell (80).

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