Solar cell module

By setting an inhibition layer and an insulating strip at the edge of the cell film layer, the problems of bubbling and delamination of the cell film layer in solar cell modules are solved, improving the stability and power generation efficiency of the modules, while reducing production costs and material damage risks.

CN223798580UActive Publication Date: 2026-01-13WUXI UTMOST LIGHT TECH CO LTD
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Patent Information

Application Number
CN202422704466.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2026-01-13
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing solar cell modules are prone to blistering and delamination at the edges of the cell film when the ambient temperature changes, and the large cleaning area affects the power generation area.

Method used

An inhibition layer is provided at the edge of the battery cell film layer, partially covering the battery cell film layer and extending to the clear edge area. There is no adhesive between the inhibition layer and the battery cell film layer, and an insulating strip is provided on the opposite side of the busbar to prevent electrochemical reactions and short circuits.

Benefits of technology

This effectively avoids blistering and delamination issues at the edges of the cell film layer, improving the stability and power generation efficiency of solar cell modules while reducing production costs and the risk of material damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of solar cells, and discloses a solar cell module, which comprises the following components: front plate glass which is provided with a cell film layer and comprises an edge cleaning area which is arranged at the periphery of the cell film layer in a surrounding manner; the inhibition layer is provided with a non-adhesive surface, one part of the non-adhesive surface of the inhibition layer is attached to the battery cell film layer, and the other part of the non-adhesive surface of the inhibition layer extends to the edge cleaning area and is attached to the front plate glass; the adhesive film layer is positioned on one side, far away from the front plate glass, of the battery cell film layer; and the back plate glass covers the battery cell film layer, the inhibition layer and the adhesive film layer, and the back plate glass is connected to the front plate glass. One part of the inhibition layer is arranged on the battery core film layer, and the other part of the inhibition layer is arranged in the edge clearing area, so that the dragging effect of thermal shrinkage of the packaged adhesive film on the edge area of the battery core film layer can be inhibited. Besides, the non-adhesive surface of the inhibition layer is attached to the battery core film layer, which means that no adhesive exists between the inhibition layer and the battery core film layer, so that the edge of the battery core film layer does not have an acting force for pulling the battery core film layer.
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Description

Technical Field

[0001] This utility model relates to the field of solar cell technology, and specifically to a solar cell module. Background Technology

[0002] Solar cell modules have certain requirements for waterproofing. Therefore, butyl rubber is usually applied around the solar cell module, and an adhesive film layer is placed between the backsheet glass and the cell film layer to prevent air and moisture from the external environment from contacting the cell film layer.

[0003] However, when the ambient temperature changes, the shrinkage force generated by the adhesive layer at the edge of the cell film can cause defects such as blistering and delamination, affecting the power generation of the solar cell module. To overcome these problems, a wider edge cleaning area is usually provided to avoid blistering and delamination of the cell film. However, a wider edge cleaning area reduces the actual power generation area of ​​the cell film. Therefore, while increasing the power generation area by reducing the width of the edge cleaning area, it is crucial to prevent blistering and delamination at the edge of the cell film. Utility Model Content

[0004] In view of this, the present invention provides a solar cell module to solve the problems of blistering and delamination at the edge of the cell film layer in existing solar cell modules, as well as the large edge cleaning area of ​​solar cell modules affecting the power generation area.

[0005] This utility model provides a solar cell module, comprising:

[0006] The front glass panel is provided with a battery cell film layer, and the front glass panel includes a clear edge area surrounding the battery cell film layer.

[0007] An inhibition layer having a non-adhesive side, a portion of the non-adhesive side of the inhibition layer is attached to the cell film layer, and another portion extends to the edge clearing area and is attached to the front glass panel;

[0008] The adhesive film layer is located on the side of the battery cell film layer away from the front glass.

[0009] A back glass panel is disposed on the battery cell film layer, the inhibition layer, and the adhesive film layer, and the back glass panel is connected to the front glass panel.

[0010] Beneficial effects: This invention places a portion of the inhibition layer on the battery cell film layer and a portion in the edge clearing area, allowing the inhibition layer to cover the edge of the battery cell film layer. The release film corresponds to the edge area of ​​the battery cell film layer, thereby inhibiting the pulling effect of thermal shrinkage of the release film layer on the edge area of ​​the battery cell film layer after encapsulation, thus reducing the risk of the battery cell film layer being pulled off. Furthermore, by attaching the non-adhesive side of the inhibition layer to the battery cell film layer, there is no adhesive between the inhibition layer and the battery cell film layer. This means there is no adhesive between the inhibition layer and the battery cell film layer, therefore there is no pulling force on the edge of the battery cell film layer, thus avoiding problems such as bubbling and delamination at the edge of the battery cell film layer.

[0011] In one alternative embodiment, a portion of the inhibition layer is located between the adhesive film layer and the battery cell film layer; or, a portion of the inhibition layer is located on the side of the adhesive film layer away from the battery cell film layer.

[0012] Beneficial effects: This utility model places the inhibition layer on the battery cell film layer between the adhesive film layer and the battery cell film layer. On the one hand, it can isolate the edges of the adhesive film layer and the battery cell film layer, avoiding the pulling force on the edges of the battery cell film layer when the adhesive film layer cures and shrinks or is cooled and shrinks. On the other hand, since the side of the inhibition layer facing the battery cell film layer is the non-adhesive side, there is no adhesive between the inhibition layer and the battery cell film layer. In this way, it can effectively avoid the pulling force on the edges of the battery cell film layer that may be generated due to the curing of adhesive, ensuring the integrity of the battery cell film layer and the photoelectric conversion efficiency, and extending the service life of the battery cell film layer.

[0013] In another embodiment of this invention, a portion of the inhibition layer is located on the side of the adhesive film layer away from the battery film layer. Although the adhesive film layer still contacts the edge of the battery cell film layer, since the inhibition layer on the battery cell film layer is positioned between the adhesive film layer and the battery cell film layer, the inhibition layer can block the connection between the adhesive film layer and the backsheet glass. Therefore, when the adhesive film layer cures and shrinks or shrinks due to cooling, the adhesive film layer will shrink towards the battery cell film layer, and the adhesive film layer will not generate the pulling force that would cause blistering and delamination of the battery cell film layer. Secondly, since another portion of the battery cell film layer is located on the front panel glass, after the solar cell module is assembled, the adhesive film layer will adhere tightly to the battery cell film layer under the action of the inhibition layer. Therefore, the adhesive film layer will not tend to move away from the battery cell film layer at its edge, thus effectively avoiding problems such as blistering and delamination at the edge of the battery cell film layer.

[0014] In one optional embodiment, the inhibition layer is a pair, and the pair of inhibition layers are disposed opposite each other on opposite sides of the cell film layer; or, the inhibition layer surrounds the periphery of the cell film layer.

[0015] Beneficial effects: To facilitate the output of electrical energy from solar cell modules, busbars are typically installed within the modules. These busbars are oriented along the arrangement of the sub-cells. Since the busbars are located between the encapsulant layer and the cell film layer, the encapsulant layer in the area where the busbars are located experiences greater shrinkage, leading to a stronger pulling effect on the cell film layer and making it more prone to delamination. Therefore, areas on the cell film layer with busbars are generally more susceptible to blistering and delamination. Solving this problem requires only placing suppression layers on either side of the busbars on the cell film layer.

[0016] In another embodiment of this invention, an inhibition layer is provided on all sides of the cell film layer, which can ensure that no bubbling or delamination occurs on any edge of the cell film layer, thereby improving the stability and reliability of the entire solar cell module.

[0017] In one alternative embodiment, a fixing structure is provided between the suppression layer and the cell film layer or the edge clearing region.

[0018] Beneficial effects: This utility model has a fixing structure between the inhibition layer and the cell film layer or the edge clearing area, which can ensure the stability of the position of the inhibition layer in the entire solar cell module and avoid displacement or loosening caused by vibration or external impact, thereby facilitating the lamination and encapsulation process of the battery module.

[0019] In one optional embodiment, the fixing structure is an adhesive layer, the length direction of which is consistent with the length direction of the inhibition layer.

[0020] Beneficial effects: Compared to other fixing methods, using an adhesive layer to connect the inhibition layer to the cell film layer or the edge cleaning area is not only simpler and faster to operate, saving assembly time, but also avoids damage to the structure of the solar cell module, such as the cell film layer, during assembly. Secondly, aligning the length of the adhesive layer with the length of the inhibition layer increases the bonding area of ​​the adhesive layer, ensuring its bonding effect.

[0021] In one optional embodiment, the fixing structure is a fixing adhesive dot, and at least one fixing adhesive dot is provided along the length direction of the inhibition layer.

[0022] Beneficial effects: This invention fixes the inhibition layer to the cell film layer or the front glass using fixed contacts, ensuring the stability of the inhibition layer's position within the entire solar cell module. Furthermore, this fixing method is relatively simple to operate, helping to simplify the assembly process, improve assembly efficiency, and reduce production costs. Moreover, fixing the inhibition layer to the cell film layer using adhesive dots also reduces the introduction of other materials, lowering the risk of discoloration and damage to the cell film layer, while ensuring its relative fixation to the cell film layer.

[0023] In one alternative embodiment, a busbar is further included, which is disposed on the opposite side of the non-adhesive surface of the inhibition layer; or, the busbar is disposed on the cell film layer.

[0024] Beneficial effects: By setting busbars, it is easier to collect the current generated by the solar cell module, thereby improving the overall output power of the solar cell module. Secondly, compared to placing the busbars on the cell film layer, placing them on the opposite side of the non-adhesive side of the suppression layer ensures insulation between the busbars and the cell film layer, preventing electrochemical reactions or short circuits. Furthermore, the adhesion stability of the suppression layer is further improved by pressing the busbars onto it. When the busbars are placed on the cell film layer, the side of the busbar facing the cell film layer is the insulating side. Insulation between the busbars and the cell film layer can be ensured by applying an insulating coating or adding insulating strips.

[0025] In one optional embodiment, the suppression layer is an insulating tape, and the side of the insulating tape corresponding to the cell film layer is a non-adhesive surface, while the side of the insulating tape facing the back glass is an adhesive surface, and the busbar is attached to the adhesive surface of the insulating tape.

[0026] Beneficial effects: Since the busbar itself has no adhesive properties, bonding the adhesive side of the insulating tape to the busbar effectively prevents the busbar from moving freely on the surface of the battery cell film layer, ensuring the stability of the relative position between the busbar and the battery cell film layer, and avoiding poor contact or short circuit problems caused by its free movement. Furthermore, since the insulating tape has inherent electrical insulating properties, placing the insulating tape between the busbar and the battery cell film layer can effectively prevent electrochemical reactions or short circuits between the busbar and the battery cell film layer.

[0027] In one alternative embodiment, the material of the inhibition layer is one of single-sided insulating tape, TPU, ETFE, or PET.

[0028] Beneficial effects: The suppression layer made from any of the above materials exhibits excellent electrical insulation properties. Therefore, the suppression layer made from any of the above materials can solve the problems of blistering and delamination at the edges of the cell film layer while preventing short circuits with the cell film layer, thus ensuring the structural reliability of the solar cell module.

[0029] In one optional embodiment, the adhesive film layer includes an inner peripheral region corresponding to the battery cell film layer and an outer edge region corresponding to the cleaning region, wherein the adhesion or shrinkage rate of the outer edge region is lower than that of the inner peripheral region.

[0030] Beneficial effects: The adhesion or shrinkage rate of the outer edge region is lower than that of the inner circumference region. This means that when the adhesive film shrinks during curing or cooling, the shrinkage of the adhesive film layer in the outer edge region toward the edge of the cell film layer will be reduced. This reduces the tensile force on the edge of the cell film layer, thereby reducing the adverse effects of the adhesive film layer on the edge of the cell film layer and improving the stability and reliability of the solar cell module. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a solar cell module according to an embodiment of the present invention;

[0033] Figure 2 This is a cross-sectional schematic diagram of a solar cell module according to an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of another solar cell module according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of an inhibition layer and its position relative to the cell film layer in an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Front glass panel; 101. Edge clearing area; 2. Battery cell film layer; 3. Inhibition layer; 301. Non-adhesive surface; 302. Adhesive surface; 303. Fixing structure; 4. Adhesive film layer; 401. Inner peripheral area; 402. Outer edge area; 5. Back glass panel. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] This addresses the issues of blistering and delamination at the edges of the cell film layer in existing solar cell modules, as well as the large cleaning area of ​​solar cell modules affecting the power generation area.

[0040] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0041] According to embodiments of the present invention, such as Figures 1 to 3 As shown, a solar cell module is provided, including: a front glass panel 1, an inhibition layer 3, an encapsulant layer 4, and a back glass panel 5.

[0042] Specifically, the front glass 1 is provided with a battery cell film layer 2, and the front glass 1 includes a cleaning area 101 surrounding the battery cell film layer 2; the suppression layer 3 has a non-adhesive surface 301, a portion of which is attached to the battery cell film layer 2, and another portion extends to the cleaning area 101 and is attached to the front glass 1; the adhesive film layer 4 is located on the side of the battery cell film layer 2 away from the front glass 1; the back glass 5 is covered on the battery cell film layer 2, the suppression layer 3 and the adhesive film layer 4, and the back glass 5 is connected to the front glass 1.

[0043] In this embodiment, a portion of the inhibition layer 3 is disposed on the battery cell film layer 2, and a portion is disposed in the edge clearing region 101, so that the inhibition layer 3 can cover the edge of the battery cell film layer 2. The release film layer 4 corresponds to the edge region of the battery cell film layer 2, thereby inhibiting the pulling effect of the thermal shrinkage of the release film layer 4 on the edge region of the battery cell film layer 2 after encapsulation, thus reducing the risk of the battery cell film layer 2 being pulled off. In addition, the non-adhesive surface 301 of the inhibition layer 3 is applied to the battery cell film layer 2. There is no adhesive between the inhibition layer 3 and the battery cell film layer 2, which means that there is no adhesive between the inhibition layer 3 and the battery cell film layer 2. Therefore, there is no pulling force on the edge of the battery cell film layer 2, thereby avoiding problems such as bubbling and delamination at the edge of the battery cell film layer 2.

[0044] The surface opposite to the non-adhesive surface of the inhibition layer 3 can be either an adhesive surface or a non-adhesive surface. When it is a non-adhesive surface, it can reduce the adhesion between the layer and the backplate glass 5 or the adhesive film layer 4. Furthermore, since the adhesive on the adhesive surface generally contains acrylic acid, using a non-adhesive surface can reduce the risk of discoloration inside the battery module. When it is an adhesive surface, it can be used to fix the busbars during the encapsulation process.

[0045] It is understood that, although both the inhibition layer 3 and the adhesive film layer 4 are located on the side of the battery cell film layer 2 away from the front glass 1 in this embodiment, there are several different positional relationships between them. The positional relationships between them will be explained below with reference to some examples.

[0046] In a specific embodiment, such as Figure 2 As shown, a portion of the inhibition layer 3 is located between the adhesive film layer 4 and the battery cell film layer 2. In this embodiment, the inhibition layer 3 located on the battery cell film layer 2 is disposed between the adhesive film layer 4 and the battery cell film layer 2. On the one hand, it can isolate the edges of the adhesive film layer 4 and the battery cell film layer 2, avoiding the pulling force on the edges of the battery cell film layer 2 when the adhesive film layer 4 cures and shrinks or is cooled and shrinks. On the other hand, since the side of the inhibition layer 3 facing the battery cell film layer 2 is the non-adhesive surface 301, there is no adhesive between the inhibition layer 3 and the battery cell film layer 2. In this way, the pulling force on the edges of the battery cell film layer 2 that may be generated due to the curing of the adhesive can be effectively avoided, ensuring the integrity and photoelectric conversion efficiency of the battery cell film layer 2, and extending the service life of the battery cell film layer 2.

[0047] In another specific embodiment, a portion of the inhibition layer 3 is located on the side of the adhesive film layer 4 away from the cell film layer 2. In this embodiment, although the adhesive film layer 4 still contacts the edge of the cell film layer 2, since the inhibition layer 3 on the cell film layer 2 is located between the adhesive film layer 4 and the back glass 5, the inhibition layer 3 can block the connection between the adhesive film layer 4 and the back glass 5. Therefore, when the adhesive film layer 4 cures and shrinks or shrinks due to cooling, the adhesive film layer 4 will shrink towards the cell film layer 2, and the adhesive film layer 4 will not generate the pulling force that would cause bubbling and delamination of the cell film layer 2. Secondly, since another portion of the cell film layer 2 is located on the front glass 1, after the solar cell module is assembled, the adhesive film layer 4 will adhere tightly to the cell film layer 2 under the action of the inhibition layer 3. Therefore, the adhesive film layer 4 will not tend to move away from the edge of the cell film layer 2, thereby effectively avoiding problems such as bubbling and delamination at the edge of the cell film layer 2.

[0048] According to one embodiment of the present invention, such as Figures 1 to 3As shown, the inhibition layers 3 are a pair, with the pair of inhibition layers 3 disposed opposite each other on opposite sides of the cell film layer 2; or, the inhibition layers 3 surround the periphery of the cell film layer 2. To facilitate the output of electrical energy from the solar cell module, busbars are typically installed within the solar cell module. The busbars are positioned along the arrangement direction of the sub-cells. Since the busbars are located between the adhesive layer 4 and the cell film layer 2, the shrinkage effect of the adhesive layer 4 in the area where the busbars are located is greater, resulting in a greater pulling effect of the adhesive layer 4 on the cell film layer 2, making it easier for the film to detach. Therefore, the area on the cell film layer 2 with busbars is generally more prone to bubbling and delamination. Therefore, it is sufficient to install inhibition layers 3 on opposite sides of the busbars on the cell film layer 2 to solve the bubbling and delamination problems in this area.

[0049] In another embodiment, an inhibition layer 3 is provided on all sides of the cell film layer 2, which can ensure that no bubbling or delamination occurs on any edge of the cell film layer 2, thereby improving the stability and reliability of the entire solar cell module.

[0050] Therefore, compared to setting the suppression layer 3 around the periphery of the battery cell film layer 2, setting the suppression layer 3 only on the opposite sides of the battery cell film layer 2 where no busbar is set, although it cannot protect the edges of the battery cell film layer 2 in all aspects, can avoid occupying too much space. It can also reserve sufficient installation space for other components.

[0051] According to one embodiment of the present invention, such as Figure 4 As shown, a fixing structure 303 is provided between the suppression layer 3 and the cell film layer 2 or the edge clearing region 101. In this embodiment, the fixing structure 303 between the suppression layer 3 and the cell film layer 2 or the edge clearing region 101 can ensure the stability of the position of the suppression layer 3 in the entire solar cell module, and avoid displacement or loosening caused by vibration or external impact, thereby facilitating the lamination and encapsulation process of the battery module.

[0052] Secondly, compared to setting the fixing structure 303 on the cell film layer 2, setting the fixing structure 303 in the edge clearing area 101 can ensure that there are as few other substances as possible between the suppression layer 3 and the cell film layer 2, reducing the possibility of damage to the cell film layer 2.

[0053] According to one embodiment of this utility model, the fixing structure 303 is an adhesive layer, and the length direction of the adhesive layer is consistent with the length direction of the suppression layer 3. Compared with other fixing methods, using an adhesive layer to connect the suppression layer 3 to the cell film layer 2 or the edge clearing area 101 is not only simpler and faster to operate, saving assembly time, but also avoids damage to the structure in the solar cell module, such as the cell film layer 2, during the assembly process. Secondly, aligning the length direction of the adhesive layer with the length direction of the suppression layer increases the bonding area of ​​the adhesive layer, ensuring the bonding effect of the adhesive layer.

[0054] Preferably, the adhesive layer is disposed between the inhibition layer 3 and the edge clearing region 101. This avoids the adhesive layer exerting a pulling force on the edge of the cell film layer 2 during the curing process.

[0055] It should be noted that the length direction of the suppression layer 3 in this embodiment is parallel to... Figure 1 and Figure 3 The directions shown in the diagram are consistent.

[0056] According to one embodiment of this utility model, the fixing structure 303 is a fixing adhesive point, and at least one fixing adhesive point is provided along the length direction of the suppression layer 3. This embodiment fixes the suppression layer 3 to the cell film layer 2 or the front glass 1 through fixing contacts, ensuring the stability of the suppression layer 3's position within the entire solar cell module. Furthermore, this fixing scheme is relatively simple to operate, helping to simplify the assembly process, improve assembly efficiency, and reduce production costs. Moreover, fixing the suppression layer 3 to the cell film layer 2 through fixing adhesive points also reduces the introduction of other materials and lowers the risk of discoloration and damage to the cell film layer 2, while ensuring the suppression layer 3 can be relatively fixed to the cell film layer 2.

[0057] According to one embodiment of this utility model, a busbar is also included, which is disposed on the opposite side of the non-adhesive surface 301 of the suppression layer 3; or, the busbar is disposed on the cell film layer 2. This embodiment, by providing a busbar, facilitates the collection of current generated by the solar cell module, thereby improving the overall output power of the solar cell module. Secondly, disposing the busbar on the opposite side of the non-adhesive surface 301 of the suppression layer 3 ensures insulation between the busbar and the cell film layer 2, preventing electrochemical reactions or short circuits. Simultaneously, the busbar's pressure on the suppression layer 3 further enhances the adhesion stability of the suppression layer 3. When the busbar is disposed on the cell film layer 2, the side of the busbar facing the cell film layer 2 is the insulating surface. Insulation between the busbar and the cell film layer 2 can be ensured by applying an insulating coating or adding insulating strips. In this solution, the placement of the busbar is unaffected when the suppression layer 3 is included.

[0058] According to one embodiment of the present invention, such as Figure 2 and Figure 4 As shown, the suppression layer 3 is an insulating tape, with the side of the insulating tape corresponding to the battery cell film layer 2 being a non-adhesive surface 301, and the side of the insulating tape facing the back glass 5 being an adhesive surface 302. The busbar is attached to the adhesive surface 302 of the insulating tape. It is understood that since the busbar itself has no adhesive properties, bonding the adhesive surface 302 of the insulating tape to the busbar can effectively prevent the busbar from moving freely on the surface of the battery cell film layer 2, ensuring the stability of the relative position between the busbar and the battery cell film layer 2, and avoiding poor contact or short circuit problems caused by its free movement. Furthermore, since the insulating tape itself has electrical insulating properties, setting an insulating tape between the busbar and the battery cell film layer 2 can effectively prevent electrochemical reactions or short circuits between the busbar and the battery cell film layer 2. In a preferred embodiment, by using the suppression layer 3 instead of the insulating tape on one side of the busbar conventionally used in the prior art, both interlayer insulation and suppression of edge detachment of the battery cell film layer 2 can be achieved simultaneously.

[0059] According to one embodiment of this utility model, the material of the suppression layer 3 is preferably a transparent material to ensure the light transmission characteristics at the edge of the battery module. It can also be an opaque material. More specifically, the material of the suppression layer 3 is one of single-sided insulating tape, TPU, ETFE, or PET. The suppression layer 3 prepared using any of the above materials has excellent electrical insulation properties. Therefore, the suppression layer 3 prepared using any of the above materials can solve the problems of blistering and delamination at the edge of the cell film layer 2 while avoiding short circuits with the cell film layer 2, thus ensuring the structural reliability of the solar cell module.

[0060] According to one embodiment of the present invention, the adhesive film layer 4 includes an inner peripheral region 401 corresponding to the cell film layer 2 and an outer edge region 402 corresponding to the edge clearing region 101. The adhesion or shrinkage rate of the outer edge region 402 is lower than that of the inner peripheral region 401. It is understood that the lower adhesion or shrinkage rate of the outer edge region 402 means that when the adhesive film layer 4 shrinks during curing or cooling, the shrinkage rate towards the edge of the cell film layer 2 is reduced, thus reducing the tensile force on the edge of the cell film layer 2. This reduces the adverse effect of the adhesive film layer 4 on the edge of the cell film layer 2, thereby improving the stability and reliability of the solar cell module.

[0061] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A solar cell module, characterized in that, include: The front glass (1) is provided with a battery cell film layer (2), and the front glass (1) includes a clear edge area (101) surrounding the battery cell film layer (2); The inhibition layer (3) has a non-adhesive surface (301), a portion of which is attached to the cell film layer (2) and the other portion extends to the edge clearing area (101) and is attached to the front glass (1). The adhesive film layer (4) is located on the side of the battery cell film layer (2) away from the front glass (1); The back glass (5) is disposed on the battery cell film layer (2), the inhibition layer (3) and the adhesive film layer (4), and the back glass (5) is connected to the front glass (1).

2. The solar cell module according to claim 1, characterized in that, A portion of the inhibition layer (3) is located between the adhesive film layer (4) and the battery cell film layer (2); or, a portion of the inhibition layer (3) is located on the side of the adhesive film layer (4) away from the battery cell film layer (2).

3. The solar cell module according to claim 1, characterized in that, The inhibition layer (3) is a pair, and the pair of inhibition layers (3) are disposed opposite to each other on opposite sides of the battery cell film layer (2); or, the inhibition layer (3) surrounds the periphery of the battery cell film layer (2).

4. The solar cell module according to any one of claims 1 to 3, characterized in that, A fixing structure (303) is provided between the inhibition layer (3) and the battery cell film layer (2) or the edge clearing area (101).

5. The solar cell module according to claim 4, characterized in that, The fixing structure (303) is an adhesive layer, and the length direction of the adhesive layer is consistent with the length direction of the inhibition layer (3).

6. The solar cell module according to claim 4, characterized in that, The fixing structure (303) is a fixing adhesive point, and at least one fixing adhesive point is provided along the length direction of the inhibition layer (3).

7. The solar cell module according to any one of claims 1 to 3, characterized in that, It also includes a busbar, which is disposed on the opposite side of the non-adhesive surface (301) of the suppression layer (3); or, the busbar is disposed on the cell film layer (2).

8. The solar cell module according to claim 7, characterized in that, The suppression layer (3) is an insulating strip, and the side of the insulating strip corresponding to the battery cell film layer (2) is a non-adhesive surface (301), and the side of the insulating strip facing the back glass (5) is an adhesive surface (302). The busbar is attached to the adhesive surface (302) of the insulating strip.

9. The solar cell module according to any one of claims 1 to 3, characterized in that, The material of the inhibition layer (3) is one of single-sided insulating tape, TPU, ETFE or PET.

10. The solar cell module according to claim 2, characterized in that, The adhesive film layer (4) includes an inner peripheral region (401) corresponding to the battery cell film layer (2) and an outer edge region (402) corresponding to the cleaning edge region (101), wherein the adhesion or shrinkage rate of the outer edge region (402) is lower than that of the inner peripheral region (401).