Crystalline silicon photovoltaic module and preparation method thereof

Abstract

The invention provides a crystalline silicon photovoltaic module and a preparation method thereof, the crystalline silicon photovoltaic module comprises front plate glass, a battery piece and a back plate which are stacked in sequence from top to bottom, and the crystalline silicon photovoltaic module further comprises a first supporting unit which is arranged between the front plate glass and the battery piece, and a second supporting unit which is arranged between the battery piece and the back plate, the front plate glass and the battery pieces are arranged at intervals; and the second supporting unit is arranged between the battery piece and the back plate, so that the battery piece and the back plate are spaced, and the problem that the photovoltaic module is not easy to disassemble in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a crystalline silicon photovoltaic module and a preparation method thereof. Background Art

[0002] The structure of traditional crystalline silicon photovoltaic modules consists of front glass, film, battery string, film, and back panel from top to bottom. The battery string is bonded to the front glass and back panel through the film. The front glass and back panel protect the battery string, and the film plays a bonding role.

[0003] During the recycling and disassembly process of traditional crystalline silicon photovoltaic modules, it is difficult to separate the cells from the front glass and back panel due to the adhesion of the adhesive film. The disassembled glass, back panel and cells are all covered by the adhesive film and have low purity. Further complex physical and chemical treatment is required to obtain recycled materials with higher purity. This makes the recycling process of traditional photovoltaic modules very complicated and the recycling cost is relatively high. Summary of the invention

[0004] The main purpose of the present invention is to provide a crystalline silicon photovoltaic module and a preparation method thereof, so as to solve the problems of low purity and high recycling cost of photovoltaic modules in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present invention, a crystalline silicon photovoltaic module is provided, the crystalline silicon photovoltaic module comprising: a front plate glass, a battery cell, and a back plate stacked in sequence from top to bottom, and the crystalline silicon photovoltaic module also comprises:

[0006] A first supporting unit is arranged between the front glass and the battery sheet so that the front glass and the battery sheet are spaced apart from each other;

[0007] The second supporting unit is arranged between the battery sheet and the back plate so that the battery sheet and the back plate are spaced apart.

[0008] Furthermore, the first support unit includes: a second support surface arranged opposite to the first support surface, the first support surface of the first support unit is connected to the front glass, and the second support surface of the first support unit is connected to the battery cell.

[0009] Furthermore, the second support unit includes: a third support surface and a fourth support surface arranged opposite to each other, the third support surface of the second support unit is connected to a side of the battery cell away from the front glass, and the fourth support surface of the second support unit is connected to the back plate.

[0010] Furthermore, the first support unit also includes: a first adhesive layer, and the first support surface and the second support surface are respectively provided with the first adhesive layer, so that when the first support surface is in contact with the front glass and the second support surface is in contact with the battery cell, the front glass, the battery cell and the first support unit are relatively fixed.

[0011] Furthermore, the second supporting unit also includes: a second adhesive layer, and the second adhesive layer is respectively arranged on the third supporting surface and the fourth supporting surface, so that when the third supporting surface and the side of the battery cell relatively away from the front plate glass and the fourth supporting surface is in contact with the back plate, the battery cell, the back plate and the second supporting unit are relatively fixed.

[0012] Further, the first support unit and the second support unit respectively include a first support portion, a second support portion, a third support portion and a fourth support portion which are connected in sequence, and the first support portion, the second support portion, the third support portion and the fourth support portion constitute a rectangular frame.

[0013] Further, the material of the first support unit and the second support unit is any one of photovoltaic glass, photovoltaic back sheet, expandable polyethylene, and printed circuit board; and / or,

[0014] The thickness of the first support unit and the second support unit along the first direction ranges from 1 mm to 3 mm;

[0015] The first direction is the stacking direction of the photovoltaic components.

[0016] Furthermore, the crystalline photovoltaic module further comprises: a protective layer, the protective layer being arranged on the surface of the cell;

[0017] The material of the protective layer is any one of glass and a transparent back panel.

[0018] Furthermore, the crystalline silicon photovoltaic module further comprises: a sealant, which is arranged at the connection between the first supporting unit and the front glass plate and the solar cell; and / or,

[0019] The sealant is provided at the connection between the second supporting unit and the battery cell and the back plate;

[0020] The sealant is made of metal or polymer material.

[0021] According to another aspect of the present invention, a method for manufacturing a crystalline silicon photovoltaic module is provided. The method is applied to the above crystalline photovoltaic module, and the method comprises:

[0022] Set up the back panel;

[0023] Disposing a second supporting unit so that a fourth supporting surface of the second supporting unit is connected to the back plate;

[0024] Arranging the battery cell on the third supporting surface of the second supporting unit so that a second hollow layer is formed between the battery cell and the back plate;

[0025] The second supporting surface of the first supporting unit is in contact with a side of the battery cell away from the back plate;

[0026] The front glass is arranged on the first supporting surface of the first supporting unit so that a first hollow layer is formed between the front glass and the battery sheet.

[0027] By applying the technical solution of the present invention, when disassembling a crystalline silicon photovoltaic module, the battery cells can be easily separated from the front glass and the back glass, and the disassembled battery cells have only a small amount of glue or no glue on them. In this way, the purity of the recycled battery cells can be improved. Because the purity of the battery cells is improved, there is no need for more complicated physical and chemical methods to process the disassembled battery cells, which further reduces the recycling cost of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 A schematic diagram of a photovoltaic assembly provided in an embodiment of the present application is shown;

[0030] Figure 2 A schematic diagram showing the specific structure of the first supporting unit and the second supporting unit in an embodiment of the present application is shown;

[0031] Figure 3 A schematic diagram of the preparation method provided in the examples of the present application is shown.

[0032] The above drawings include the following reference numerals:

[0033] 1. Front glass; 2. Battery cell; 3. Back panel; 4. First support unit; 5. Second support unit; 6. First support part; 7. Second support part; 8. Third support part; 9. Fourth support part. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] The structure of traditional crystalline silicon photovoltaic modules consists of front glass, film, battery string, film, and back panel from top to bottom. The battery string is bonded to the front glass and back panel through the film. The front glass and back panel protect the battery string, and the film plays a bonding role.

[0036] During the recycling and disassembly process of traditional crystalline silicon photovoltaic modules, it is difficult to separate the cells from the front glass and back panel due to the adhesion of the adhesive film. The disassembled glass, back panel and cells are all covered by the adhesive film and have low purity. Further complex physical and chemical treatment is required to obtain recycled materials with higher purity. This makes the recycling process of traditional photovoltaic modules very complicated and the recycling cost is relatively high.

[0037] Therefore, the purpose of this application is to provide a crystalline silicon photovoltaic module and a preparation method thereof in view of the above problems, so as to solve the problems of low purity and high recycling cost of photovoltaic modules in the prior art.

[0038] Example 1

[0039] The present application first provides a crystalline silicon photovoltaic module, which includes a front glass plate 1, a cell 2, and a back plate 3 stacked in sequence from top to bottom, and further includes:

[0040] A first supporting unit 4 is disposed between the front glass 1 and the battery cell 2 so that the front glass 1 and the battery cell 2 are spaced apart from each other;

[0041] The second supporting unit 5 is disposed between the battery cell 2 and the back plate 3 so that the battery cell 2 and the back plate 3 are spaced apart.

[0042] Specifically, Figure 1 As shown, the crystalline silicon photovoltaic module provided by the present application includes a front plate glass 1, a battery cell 2, and a back plate 3 which are stacked in sequence from top to bottom. The crystalline silicon photovoltaic module also includes a first support unit 4 arranged between the front plate glass 1 and the battery cell 2. The first support unit 4 separates the front plate glass 1 from the battery cell 2 to form a first hollow layer with a preset interval. An inert gas is stored in the first hollow layer. The inert gas used in this embodiment is nitrogen. A second support unit 5 is also provided between the battery cell 2 and the back plate 3. The second support unit 5 separates the battery cell 2 from the back plate 3 to form a second hollow layer with a preset interval. Nitrogen is also filled in the second hollow layer. In this way, it can be ensured that the battery cell 2 located between the first hollow layer and the second hollow layer will not be deformed due to external force.

[0043] By applying the technical solution of the application, when disassembling the crystalline silicon photovoltaic module, the battery cell 2 can be easily separated from the front glass plate 1 and the back plate 3, and there is only a small amount of glue or no glue on the disassembled battery cell 2, so that the purity of the recycled battery cell 2 can be improved. Because the purity of the battery cell 2 is improved, there is no need for more complicated physical and chemical methods to process the disassembled battery cell 2, further reducing the recycling cost of the battery cell 2.

[0044] Furthermore, the first support unit 4 includes: a first support surface and a second support surface arranged opposite to each other, the first support surface of the first support unit 4 is connected to the front glass 1 , and the second support surface of the first support unit 4 is connected to the battery cell 2 .

[0045] Specifically, Figure 1 and Figure 2 As shown, the first support unit 4 includes a first support surface and a second support surface which are arranged opposite to each other, wherein the first support surface of the first support unit 4 is connected to the front glass 1 to support the front glass 1 to prevent the front glass 1 from directly contacting the battery cell 2, and the second support surface of the first support unit 4 is connected to the battery cell 2. In the prior art, the battery cell 2 is usually directly contacted with the front glass 1, and the two are fixed together by means of an adhesive film. In this method of the prior art, the surface of the battery cell 2 is all adhesive film. Therefore, in the prior art, when disassembling the photovoltaic module, due to the presence of the adhesive film, it is not only difficult to disassemble, but even if it is disassembled, due to the presence of too much adhesive film on the battery cell 2, certain physical and chemical treatments are required to realize the recycling of the battery cell 2. This method will increase the cost. The present application greatly reduces the contact area between the battery cell 2 and the front glass 1 by providing the first support unit 4, so it is easier to disassemble during disassembly, and the cost will be greatly reduced compared with the prior art during subsequent recycling.

[0046] Furthermore, the second support unit 5 includes: a third support surface and a fourth support surface arranged opposite to each other, the third support surface of the second support unit 5 is connected to the side of the battery cell 2 away from the front glass 1 , and the fourth support surface of the second support unit 5 is connected to the back plate 3 .

[0047] Specifically, Figure 1 and Figure 2 As shown, the second support unit 5 includes a third support surface and a fourth support surface that are arranged opposite to each other, wherein the third support surface in the second support unit 5 is connected to the side of the battery cell 2 away from the front plate glass 1, and the fourth support surface of the second support unit 5 is connected to the back plate 3. By providing the second support unit 5, direct contact between the back plate 3 and the battery cell 2 can be avoided. In the prior art, the battery cell 2 is usually directly in contact with the back plate 3, and the two are fixed together by means of an adhesive film. In this method of the prior art, the surface of the battery cell 2 is all adhesive film. Therefore, in the prior art, when disassembling the photovoltaic module, due to the presence of the adhesive film, it is not only difficult to disassemble, but even if it is disassembled, due to too much adhesive film on the battery cell 2, certain physical and chemical treatments are required to realize the recycling of the battery cell 2. This method will increase the cost. The present application greatly reduces the contact area between the battery cell 2 and the back plate 3 by providing the second support unit 5, so it is easier to disassemble during disassembly, and the cost will be greatly reduced compared with the prior art during subsequent recycling.

[0048] Furthermore, the first support unit 4 also includes: a first adhesive layer, and the first adhesive layer is respectively arranged on the first support surface and the second support surface, so that when the first support surface is in contact with the front glass 1 and the second support surface is in contact with the battery cell 2, the front glass 1, the battery cell 2 and the first support unit 4 are relatively fixed.

[0049] Specifically, the first support unit 4 further includes a first adhesive layer provided on the first support surface and the second support surface, and the first support unit 4 is fixed to the front glass 1 and the battery cell 2 by means of the first adhesive layer.

[0050] Furthermore, the second support unit 5 also includes: a second adhesive layer, and the second adhesive layer is respectively arranged on the third support surface and the fourth support surface, so that when the third support surface and the side of the battery cell 2 are relatively away from the front plate glass 1 and the fourth support surface is in contact with the back plate 3, the battery cell 2, the back plate 3 and the second support unit 5 are relatively fixed.

[0051] Specifically, the second support unit 5 further includes a second adhesive layer provided on the third support surface and the fourth support surface, and the second support unit 5 is fixed to the battery cell 2 and the back plate 3 by means of the second adhesive layer.

[0052] Furthermore, the first support unit 4 and the second support unit 5 respectively include a first support portion 6, a second support portion 7, a third support portion 8 and a fourth support portion 9 connected in sequence, and the first support portion 6, the second support portion 7, the third support portion 8 and the fourth support portion 9 constitute a rectangular frame.

[0053] Specifically, Figure 1 and Figure 2 As shown, the first support unit 4 and the second support unit 5 in the present application respectively include a first support portion 6, a second support portion 7, a third support portion 8 and a fourth support portion 9 which are connected in sequence, and the four together constitute a rectangular frame, and the width of the first support portion 6 and the third support portion 8 is approximately 1mm-3mm, and the length of the first support portion 6 and the third support portion 8 is consistent with the length of the glass front plate and the back plate 3, and the width of the second support portion 7 and the fourth support portion 9 is approximately 1mm-3mm, and the length of the second support portion 7 and the fourth support portion 9 is consistent with the width of the glass front plate and the back plate 3. In this way, it can be ensured that the contact area between the battery cell 2 and the first support unit 4 is reduced as much as possible under the premise that the glass front plate, the battery cell 2 and the first support unit 4 are fixed, so it can be ensured that it is easier to disassemble, and the recycling cost will be greatly reduced when the battery cell 2 is recycled later.

[0054] Further, the material of the first support unit 4 and the second support unit 5 is any one of photovoltaic glass, photovoltaic back sheet 3, expandable polyethylene, and printed circuit board; and / or,

[0055] The thickness of the first support unit 4 and the second support unit 5 along the first direction ranges from 1 mm to 3 mm;

[0056] The first direction is the stacking direction of the photovoltaic components.

[0057] Specifically, the material of the first support unit 4 and the second support unit 5 is any one of photovoltaic glass, photovoltaic backplane 3, expandable polyethylene, and printed circuit board. At the same time, the thickness range of the first support unit 4 and the second support unit 5 along the first direction is 1 mm to 3 mm, wherein the first direction is the stacking direction of the photovoltaic component.

[0058] Furthermore, the crystalline photovoltaic module further comprises: a protective layer, the protective layer being arranged on the surface of the cell 2;

[0059] The material of the protective layer is any one of glass and a transparent back plate 3 .

[0060] Specifically, a protective layer is provided on the surface of the battery cell 2 , which can protect the battery cell 2 and prevent the battery cell 2 from being deformed after being subjected to external force.

[0061] Furthermore, the crystalline silicon photovoltaic module further comprises: a sealant, which is arranged at the connection between the first supporting unit 4 and the front glass 1 and the battery cell 2; and / or,

[0062] The sealant is provided at the connection between the second supporting unit 5 and the battery cell 2 and the back plate 3;

[0063] The sealant is made of metal or polymer material.

[0064] Specifically, sealants are provided at the connection between the first support unit 4 and the front glass plate 1 and the battery cell 2, and at the connection between the second support unit 5 and the battery cell 2 and the back plate 3, which can ensure that the inert gas in the first hollow layer and the second hollow layer will not overflow, so as to protect the battery cell 2 and prevent the battery cell 2 from bending under the action of external force.

[0065] Example 2

[0066] The present application embodiment provides a method for manufacturing a crystalline silicon photovoltaic module based on the embodiment 1. The method for manufacturing a crystalline silicon photovoltaic module is applied to the above crystalline silicon photovoltaic module. The method for manufacturing a crystalline silicon photovoltaic module includes:

[0067] S1. Set the back panel;

[0068] S2. Arrange a second supporting unit so that a fourth supporting surface of the second supporting unit is connected to the back plate;

[0069] S3, placing the battery cell on the third supporting surface of the second supporting unit so that a second hollow layer is formed between the battery cell and the back plate;

[0070] S4, bringing the second supporting surface of the first supporting unit into contact with a side of the battery cell away from the back plate;

[0071] S5. Dispose the front glass plate on the first supporting surface of the first supporting unit, so that a first hollow layer is formed between the front glass plate and the battery cell.

[0072] like Figure 3 As shown, the manufacturing method of the crystalline silicon photovoltaic module provided in the present application needs to first set a backplane, and set a second adhesive layer on the fourth supporting surface of the second supporting unit, and set the second supporting unit with the second adhesive layer on the backplane, and then set the second adhesive layer on the third supporting surface, and then place the battery cell on the third supporting surface, and then set the first adhesive layer on the second supporting surface of the first supporting unit, and place the first supporting unit with the first adhesive layer on the battery cell, and then set the first adhesive layer on the first supporting surface of the first supporting unit, and set the glass front plate on the first adhesive layer, and then complete the preparation of the photovoltaic module.

[0073] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0074] By applying the technical solution of the application, when disassembling the crystalline silicon photovoltaic module, the cell can be easily separated from the front plate glass and the back plate, and the disassembled cell has only a small amount of glue or no glue, so the purity of the recycled cell can be improved. Because the purity of the cell is improved, there is no need to process the disassembled cell by more complicated physical and chemical methods, which further reduces the recycling cost of the cell;

[0075] By providing a first support unit and a second support unit, it is possible to avoid direct contact between the front glass panel and the battery cell, and direct contact between the back panel and the battery cell. In the prior art, the battery cell is usually directly contacted with the front glass panel, and the two are fixed together by means of an adhesive film. In this method of the prior art, the surface of the battery cell is all adhesive film. Therefore, in the prior art, when disassembling the photovoltaic module, due to the presence of the adhesive film, it is not only difficult to disassemble, but even if it is disassembled, due to too much adhesive film on the battery cell, certain physical and chemical treatments are required to achieve the recovery of the battery cell. This method will increase the cost. The present application greatly reduces the contact area between the battery cell and the front glass panel by providing a first support unit and a second support unit. Therefore, it is easier to disassemble during disassembly, and the cost will be greatly reduced compared with the prior art when it is subsequently recycled.

[0076] 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 "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0077] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0078] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crystalline silicon photovoltaic module, comprising a front glass plate (1), a battery cell (2), and a back plate (3) stacked in sequence from top to bottom, characterized in that: The crystalline silicon photovoltaic module further comprises: A first supporting unit (4) is arranged between the front glass (1) and the battery sheet (2), so that the front glass (1) and the battery sheet (2) are arranged at a distance; The second supporting unit (5) is arranged between the battery cell (2) and the back plate (3) so that the battery cell (2) and the back plate (3) are spaced apart.

2. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The first supporting unit (4) comprises: A first supporting surface and a second supporting surface are arranged opposite to each other, the first supporting surface of the first supporting unit (4) is connected to the front plate glass (1), and the second supporting surface of the first supporting unit (4) is connected to the battery cell (2).

3. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The second supporting unit (5) comprises: The third supporting surface and the fourth supporting surface are arranged opposite to each other, the third supporting surface of the second supporting unit (5) is connected to the side of the battery cell (2) away from the front plate glass (1), and the fourth supporting surface of the second supporting unit (5) is connected to the back plate (3).

4. The crystalline silicon photovoltaic module according to claim 2, characterized in that: The first supporting unit (4) further comprises: A first adhesive layer, wherein the first adhesive layer is respectively arranged on the first supporting surface and the second supporting surface, so that when the first supporting surface is in contact with the front glass (1) and the second supporting surface is in contact with the battery cell (2), the front glass (1), the battery cell (2) and the first supporting unit (4) are relatively fixed.

5. The crystalline silicon photovoltaic module according to claim 3, characterized in that: The second supporting unit (5) further comprises: A second adhesive layer is provided on the third support surface and the fourth support surface, respectively, so that when the third support surface and the battery cell (2) are relatively far away from the side of the front plate glass (1) and the fourth support surface is in contact with the back plate (3), the battery cell (2), the back plate (3) and the second support unit (5) are relatively fixed.

6. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The first support unit (4) and the second support unit (5) respectively comprise a first support portion (6), a second support portion (7), a third support portion (8) and a fourth support portion (9) which are connected in sequence, and the first support portion (6), the second support portion (7), the third support portion (8) and the fourth support portion (9) form a rectangular frame.

7. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The material of the first support unit (4) and the second support unit (5) is any one of photovoltaic glass, photovoltaic back sheet, expandable polyethylene, and printed circuit board; and / or The thickness of the first support unit (4) and the second support unit (5) along the first direction ranges from 1 mm to 3 mm; Wherein, the first direction is the stacking direction of the photovoltaic module.

8. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The crystalline photovoltaic module also includes: A protective layer, the protective layer being arranged on the surface of the battery cell (2); Wherein, the material of the protective layer is any one of glass and a transparent back plate.

9. The crystalline silicon photovoltaic module according to claim 1, characterized in that: The crystalline silicon photovoltaic module further comprises: Sealant, the sealant being arranged at the connection between the first supporting unit (4), the front plate glass (1) and the battery cell (2); and / or The sealant is provided at the connection between the second supporting unit (5), the battery cell (2) and the back plate (3); Wherein, the material of the sealant is metal or polymer material.

10. A method for manufacturing a crystalline silicon photovoltaic module, characterized in that: The manufacturing method is applied to the crystalline silicon photovoltaic module according to any one of claims 1 to 9, and the manufacturing method comprises: Set up the back panel; Disposing a second supporting unit so that a fourth supporting surface of the second supporting unit is connected to the back plate; Arranging the battery sheet on the third supporting surface of the second supporting unit so that a second hollow layer is formed between the battery sheet and the back plate; The second supporting surface of the first supporting unit is in contact with a side of the battery cell away from the back plate; The front glass is arranged on the first supporting surface of the first supporting unit so that a first hollow layer is formed between the front glass and the battery sheet.

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