Solar cell module and method for manufacturing solar cell module

The use of conductive adhesive wiring and back-contact photovoltaic cells in solar cell modules addresses the issue of sunlight reflection, improving designability by hiding wiring and maintaining functionality.

JP2025103598APending Publication Date: 2025-07-09AGC INC
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2023221090
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2025-07-09

AI Technical Summary

Technical Problem

The use of metal wiring in solar cell modules within laminated glass impairs the designability due to sunlight reflection, which is a concern when used as window glass in buildings.

Method used

A solar cell module design utilizing a conductive adhesive for wiring patterns and bus bar connections, combined with a back-contact type photovoltaic cells and support members, to minimize visibility and reflection.

Benefits of technology

The design effectively suppresses the impairment of design quality by hiding the wiring and reducing sunlight reflection, enhancing aesthetic appeal while maintaining electrical connectivity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025103598000001_ABST
    Figure 2025103598000001_ABST
Patent Text Reader

Abstract

To provide a solar cell module capable of suppressing impairment of design due to wiring provided in the solar cell module.SOLUTION: A solar cell module 1 includes: a first light-transmissive member 11; a second light-transmissive member 12 arranged opposite the first light-transmissive member 11; an intermediate adhesive film 13 arranged between the first light-transmissive member 11 and the second light-transmissive member 12; a plurality of photovoltaic cells 15 arranged between the first light-transmissive member 11 and the second light-transmissive member 12; and a wiring pattern 21 made of a conductive adhesive that electrically connects the plurality of photovoltaic cells 15.SELECTED DRAWING: Figure 2
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a solar cell module and a method for manufacturing the solar cell module.

Background Art

[0002] In recent years, in order to utilize natural energy, the use of solar cell modules provided with photovoltaic cells has been promoted. In particular, solar cell modules in which photovoltaic cells are provided inside laminated glass are widely used.

[0003] Patent Document 1 discloses a technique related to a solar cell capable of enhancing designability by imparting color to the solar cell and achieving harmony with the surroundings.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described in the background art, in recent years, solar cell modules in which photovoltaic cells are provided inside laminated glass have been widely used. The photovoltaic cells provided inside the laminated glass are electrically connected to each other using wiring (interconnectors).

[0006] However, such wiring is generally composed of a metal material. Therefore, when the solar cell module is used for a window glass of a building or the like, there is a problem that sunlight is reflected by the wiring and the designability of the building is impaired.

[0007] In view of the above problems, an object of the present invention is to provide a solar cell module capable of suppressing impairment of designability caused by wiring provided in the solar cell module. [Means for Solving the Problem]

[0008] A solar cell module and a method for manufacturing the solar cell module according to an aspect of the present invention are as follows.

[0009] [1] A first light-transmitting member, A second light-transmitting member arranged to face the first light-transmitting member, An intermediate adhesive film disposed between the first light-transmitting member and the second light-transmitting member, A plurality of photovoltaic cells disposed between the first light-transmitting member and the second light-transmitting member, And a wiring pattern made of a conductive adhesive electrically connecting the plurality of photovoltaic cells. A solar cell module.

[0010] [2] The wiring pattern adheres the plurality of photovoltaic cells to the first light-transmitting member. The solar cell module according to [1].

[0011] [3] Each of the photovoltaic cells is a back-contact type photovoltaic cell having a positive electrode and a negative electrode on the side of the first light-transmitting member, The wiring pattern is provided at positions corresponding to the positive electrode and the negative electrode of the photovoltaic cell. The solar cell module according to [1] or [2].

[0012] [4] The conductive adhesive is a transparent conductive adhesive. The solar cell module according to any one of [1] to [3].

[0013] [5] The solar cell module according to any one of [1] to [4], further comprising a bus bar wiring connected to the wiring pattern and extracting the electric power generated by the plurality of photovoltaic cells.

[0014] [6] The busbar wiring is disposed around a position where the plurality of photovoltaic cells are disposed. A support member for supporting the solar cell module is provided at an outer edge of the solar cell module. When the solar cell module is viewed in plan, the busbar wiring and the support member are arranged so as to overlap each other. The solar cell module according to [5].

[0015] [7] The solar cell module according to any one of [1] to [6], wherein the first light-transmitting member and the second light-transmitting member are made of a glass plate.

[0016] [8] A step of forming a wiring pattern using a conductive adhesive on the first light-transmitting member or on an intermediate adhesive film formed on the first light-transmitting member; A step of disposing a plurality of photovoltaic cells on the conductive adhesive and electrically connecting the plurality of photovoltaic cells and the wiring pattern; A step of bonding the first light-transmitting member and the second light-transmitting member using an intermediate adhesive film disposed between the first light-transmitting member and the second light-transmitting member. A method for manufacturing a solar cell module.

[0017] [9] The step of forming the wiring pattern is a step of forming a wiring pattern on the first light-transmitting member using the conductive adhesive. The plurality of photovoltaic cells are adhered onto the first light-transmitting member using the conductive adhesive. The method for manufacturing a solar cell module according to [8].

[0018]

[10] Each of the photovoltaic cells is a back contact type photovoltaic cell including a positive electrode and a negative electrode on the first light-transmitting member side. When forming a wiring pattern using the conductive adhesive, the wiring pattern of the conductive adhesive is formed such that the wiring pattern is at positions corresponding to the positive electrode and the negative electrode of the photovoltaic cell. The method for manufacturing a solar cell module according to [8] or [9].

[0019]

[11] The method for manufacturing a solar cell module according to any one of [8] to

[10] , further comprising a step of forming a bus bar wiring connected to the wiring pattern and extracting the electric power generated by the plurality of photovoltaic cells.

[0020]

[12] The method further comprises a step of providing a support member for supporting the solar cell module at an outer edge of the solar cell module, When the solar cell module is viewed in a plan view, the bus bar wiring and the support member are arranged so as to overlap each other. The method for manufacturing a solar cell module according to

[11] .

Advantages of the Invention

[0021] According to the present invention, it is possible to provide a solar cell module capable of suppressing deterioration of the design property due to the wiring provided in the solar cell module.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0023] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 and 3 are front views showing a configuration example of a solar cell module according to an embodiment. FIG. 2 is a cross-sectional view showing a configuration example of a solar cell module according to an embodiment, and is a cross-sectional view taken along the cutting line II-II in FIG. 1.

[0024] As shown in FIGS. 1 to 3, the solar cell module 1 according to the present embodiment includes a first light-transmitting member 11, a second light-transmitting member 12, an intermediate adhesive film 13, a photovoltaic cell 15, a wiring pattern 21, and bus bar wirings 22a to 22k. As shown in FIG. 2, the first light-transmitting member 11 and the second light-transmitting member 12 are plate-like members having light-transmitting properties, and can typically be configured using a glass plate or a resin material. Hereinafter, in the present embodiment, the case where the first light-transmitting member 11 and the second light-transmitting member 12 are configured by glass plates will be described. Also, hereinafter, the first light-transmitting member 11 and the second light-transmitting member 12 will also be referred to as the first glass plate 11 and the second glass plate 12. The solar cell module 1 (laminated glass) according to the present embodiment can be suitably used as a building material such as a window glass of a building.

[0025] The thicknesses of the first glass plate 11 and the second glass plate 12 are each, for example, 2 mm or more and 12 mm or less. For example, chemically strengthened glass may be used as the first glass plate 11 and the second glass plate 12. When chemically strengthened glass is used, the first glass plate 11 and the second glass plate 12 can be lightened while maintaining the strength of the first glass plate 11 and the second glass plate 12. Further, in the present embodiment, air-cooled strengthened glass may be used as the first glass plate 11 and the second glass plate 12. For example, the first glass plate 11 is disposed on the indoor side of the building, and the second glass plate 12 is disposed on the outdoor side of the building. In this case, the second glass plate 12 is disposed on the light-receiving surface side of the photovoltaic cell 15, and the first glass plate 11 is disposed on the non-light-receiving surface side of the photovoltaic cell 15.

[0026] As shown in FIG. 2, the intermediate adhesive film 13 is disposed so as to be sandwiched between the first glass plate 11 and the second glass plate 12. In other words, the first glass plate 11 and the second glass plate 12 are adhered using the intermediate adhesive film 13. For example, when forming the solar cell module 1, the first glass plate 11, the photovoltaic cell 15, the intermediate adhesive film 13, and the second glass plate 12 are laminated in this order, and this laminate is heated and pressed to be crimped, thereby forming the solar cell module 1. Details of the manufacturing method of the solar cell module 1 will be described later.

[0027] The thickness of the intermediate adhesive film 13 is preferably, for example, 0.38 mm or more, more preferably 0.76 mm or more, and still more preferably 1.52 mm or more. Further, the thickness of the intermediate adhesive film 13 is preferably 4.56 mm or less. For the intermediate adhesive film 13, EVA (ethylene-vinyl acetate copolymer) resin, PVB (polyvinyl butyral) resin, ionomer resin, COP (cyclic olefin polymer), polyurethane, PVC (polyvinyl chloride), POE (polyolefin elastomer), TPO (olefin-based thermoplastic elastomer), or the like may be used. Further, the intermediate adhesive film 13 may be configured by combining these materials.

[0028] The photovoltaic cell 15 can be configured using a photovoltaic cell such as a single-crystalline silicon type, a polycrystalline silicon type, an amorphous silicon type, a thin-film silicon type, a CIGS type, an organic thin-film type, a dye-sensitized type, a perovskite type, etc. In the configuration example shown in FIG. 1, the shape of each photovoltaic cell 15 is rectangular. For example, the shape of each photovoltaic cell 15 may be rectangular, square, or circular. Also, for example, a single-sided light-receiving type photovoltaic cell may be used as the photovoltaic cell 15. In this case, it is arranged such that the light-receiving surface of the photovoltaic cell 15 faces outward. Also, a double-sided light-receiving type photovoltaic cell may be used as the photovoltaic cell 15. In particular, in the present embodiment, it is preferable that the photovoltaic cell 15 is a back-contact type photovoltaic cell provided with a positive electrode and a negative electrode on the side of the first glass plate 11. When a back-contact type photovoltaic cell 15 is used, wiring can be aggregated on the side of the first glass plate 11 of the photovoltaic cell 15. Therefore, since no wiring is arranged on the front side of the photovoltaic cell 15, the design property of the solar cell module 1 can be further improved.

[0029] As shown in FIGS. 1 and 3, the wiring pattern 21 electrically connects a plurality of photovoltaic cells 15. For example, the wiring pattern 21 is provided at positions corresponding to the positive and negative electrodes of the photovoltaic cell 15. In FIG. 3, in order to illustrate the wiring pattern 21, a plurality of photovoltaic cells 15 are shown by broken lines. Further, in the present embodiment, as shown in FIG. 2, a plurality of photovoltaic cells 15 are adhered to the first glass plate 11 using the wiring pattern 21. The wiring pattern 21 is composed of a conductive adhesive. As the conductive adhesive, for example, a material in which conductive particles (metal fillers) are dispersed in a binder (adhesive) can be used. As the binder, at least one selected from the group consisting of epoxy resin, acrylic resin, silicone, polyurethane, phenol resin, cyanoacrylate, polyimide, polyamine, polyamide, polyester, polyvinyl alcohol, polyvinylpyrrolidone, methyl methacrylate, cyanomethacrylate, polyacrylic acid, and vinyl carboxylate resin can be used. Further, as the conductive particles, for example, at least one selected from the group consisting of silver, copper, aluminum, nickel, iron, lead, tin, zinc, gold, palladium, platinum, niobium, molybdenum, and tungsten can be used.

[0030] Further, in the present embodiment, the wiring pattern 21 may be configured using a transparent conductive adhesive. As the transparent conductive adhesive, a conductive epoxy adhesive or the like can be used. Further, as the transparent conductive adhesive, a conductive adhesive containing a polythiophene-based or polyaniline-based conductive polymer may be used. For example, as the transparent conductive adhesive, a conductive adhesive having a visible light transmittance of 60% or more, preferably 70% or more, and more preferably 80% or more can be used. For example, the width of the wiring pattern 21 is preferably 100 μm or more, more preferably 300 μm or more, and even more preferably 500 μm or more. The thickness of the wiring pattern 21 is preferably 1 μm or more, more preferably 5 μm or more, and even more preferably 10 μm or more. By setting the width and thickness of the wiring pattern 21 within this range, good conductivity can be obtained.

[0031] In the configuration example shown in FIG. 3, the wiring pattern 21 is composed of a plurality of wiring patterns 21h extending in the horizontal direction and a plurality of wiring patterns 21v extending in the vertical direction. The plurality of wiring patterns 21v extending in the vertical direction connect the plurality of wiring patterns 21h extending in the horizontal direction. The plurality of photovoltaic cells 15 are arranged on the plurality of wiring patterns 21v extending in the vertical direction and are adhered to the first glass plate 11 by the plurality of wiring patterns 21v extending in the vertical direction.

[0032] In the configuration example shown in FIG. 1, ten photovoltaic units 16a to 16j are formed. Each of the photovoltaic units 16a to 16j is composed of ten photovoltaic cells 15. Specifically, each of the photovoltaic units 16a to 16j is configured by connecting five photovoltaic cells 15 connected in series and five photovoltaic cells 15 connected in series in parallel.

[0033] As shown in FIGS. 1 and 3, the busbar wirings 22a to 22k are connected to the wiring pattern 21 and have a function of extracting the power generated by the plurality of photovoltaic cells 15. The busbar wirings 22a to 22k are arranged around the positions where the plurality of photovoltaic cells 15 are arranged. In other words, the busbar wirings 22a to 22k are provided on the outer edge of the solar cell module 1.

[0034] The busbar wirings 22a to 22k connect the outer edge side ends of a plurality of wiring patterns 21h extending in the horizontal direction to each other. Specifically, as shown in FIG. 1, the busbar wiring 22b connects the photovoltaic unit 16a and the photovoltaic unit 16b, and the busbar wiring 22c connects the photovoltaic unit 16b and the photovoltaic unit 16c. Thereafter, by connecting in the same manner, each of the photovoltaic units 16a to 16j is connected in series to each other using the busbar wirings 22b to 22j. The busbar wiring 22a is connected to the photovoltaic unit 16a and functions as a plus-side lead-out wiring. The busbar wiring 22k is connected to the photovoltaic unit 16j and functions as a minus-side lead-out wiring. The busbar wirings 22a to 22k are formed using a metal material such as aluminum or copper, for example. The width of the busbar wirings 22a to 22k is preferably 100 μm or more, more preferably 300 μm or more, and even more preferably 500 μm or more. The thickness of the busbar wirings 22a to 22k is preferably 1 μm or more, more preferably 5 μm or more, and even more preferably 10 μm or more. By setting the width and thickness of the busbar wirings 22a to 22k within this range, good conductivity can be obtained.

[0035] Note that the arrangements of the above-described wiring pattern 21, the photovoltaic cell 15, and the busbar wirings 22a to 22k are merely examples, and in the present embodiment, the arrangements of the wiring pattern 21, the photovoltaic cell 15, and the busbar wirings 22a to 22k may be other arrangements than the above.

[0036] For example, in the present embodiment, as in the solar cell module 1a shown in FIG. 4, an intermediate adhesive film 13_1 may be formed on the first glass plate 11, and a wiring pattern 21 may be formed on the intermediate adhesive film 13_1. A photovoltaic cell 15 is disposed on the wiring pattern 21, and an intermediate adhesive film 13_2 and a second glass plate 12 are disposed on the photovoltaic cell 15. In this case, by heating and pressing the laminate composed of the first glass plate 11, the intermediate adhesive films 13_1 and 13_2, the wiring pattern 21, the photovoltaic cell 15, the intermediate adhesive film 13_2, and the second glass plate 12, the intermediate adhesive films 13_1 and 13_2 are melted and integrated, and the first glass plate 11 and the second glass plate 12 are adhered using the intermediate adhesive films 13_1 and 13_2. Further, in the configuration example shown in FIG. 4, the photovoltaic cell 15 is fixed using the intermediate adhesive films 13_1 and 13_2.

[0037] As described above, the solar cell module 1 according to the present embodiment includes a wiring pattern 21 made of a conductive adhesive that electrically connects a plurality of photovoltaic cells 15. When the wiring pattern 21 is made of a conductive adhesive, it is possible to suppress the reflection of sunlight by the wiring pattern as compared with the case where the wiring pattern 21 is made of a metal material. Therefore, it is possible to suppress the impairment of the design due to the wiring provided in the solar cell module. In particular, when the wiring pattern 21 is formed using a transparent conductive adhesive, it is possible to suppress the wiring pattern 21 from entering a person's field of view. Therefore, it is possible to more effectively suppress the impairment of the design due to the wiring provided in the solar cell module. Further, in the present embodiment, a plurality of photovoltaic cells 15 may be adhered to the first glass plate 11 using the wiring pattern 21. In this case, since the adhesion and electrical connection of the plurality of photovoltaic cells 15 can be performed at once, the manufacturing process can be simplified.

[0038] FIG. 5 is a front view showing another configuration example of the solar cell module according to the embodiment. In the present embodiment, as shown in FIG. 5, the bus bar wirings 22a to 22k are arranged around the positions where a plurality of photovoltaic cells 15 are arranged. Further, support members 31a to 31d for supporting the solar cell module are provided at the outer edge of the solar cell module 1. The support members 31a to 31d are, for example, sashes and can be made of a metal material such as stainless steel. And in the present embodiment, when the solar cell module 1 is viewed in plan, the bus bar wirings 22a to 22k and the support members 31a to 31d may be arranged so as to overlap each other.

[0039] In such a configuration, the bus bar wirings 22a to 22k can be hidden using the support members 31a to 31d. Therefore, since it is possible to suppress the bus bar wirings 22a to 22k from entering a person's field of view, it is possible to more effectively suppress the design quality from being impaired by the bus bar wirings 22a to 22k provided in the solar cell module.

[0040] For example, the bus bar wirings 22a to 22k may be arranged 10 mm or more, preferably 15 mm or more, inside from the ends of the first glass plate 11 and the second glass plate 12. When the bus bar wirings 22a to 22k are arranged in this way, the bus bar wirings 22a to 22k can be protected from external moisture, so that deterioration of the bus bar wirings 22a to 22k can be suppressed. In consideration of arranging the bus bar wirings 22a to 22k and the support members 31a to 31d so as to overlap each other, it is preferable that the bus bar wirings 22a to 22k are arranged within 32 mm, preferably within 20 mm, from the ends of the first glass plate 11 and the second glass plate 12.

[0041] Next, a method for manufacturing the solar cell module according to the present embodiment will be described. Hereinafter, as an example, the case of forming the wiring pattern 21 on the first glass plate 11 (see FIG. 2) will be described. FIGS. 6 to 10 are a plan view and a cross-sectional view for explaining an example of a method for manufacturing the solar cell module according to the embodiment.

[0042] When manufacturing the solar cell module according to this embodiment, first, a first glass plate 11 is prepared. As the first glass plate 11, the above-described glass plate can be used. Next, as shown in FIG. 6, a wiring pattern 21 is formed on the first glass plate 11 using a conductive adhesive. As the conductive adhesive used when forming the wiring pattern 21, the above-described materials can be used. When forming the wiring pattern 21, for example, an inkjet method, a screen printing method, a photoresist method, or the like can be used.

[0043] Thereafter, as shown in FIG. 7, a plurality of photovoltaic cells 15 are arranged on the wiring pattern 21 (conductive adhesive), and the plurality of photovoltaic cells 15 are adhered onto the first glass plate 11 using a conductive adhesive, and the plurality of photovoltaic cells 15 and the wiring pattern 21 are electrically connected. At this time, the photovoltaic cells 15 are arranged such that the positive and negative electrodes of the photovoltaic cells 15 are electrically connected to the positive and negative electrodes of the wiring pattern 21. As the photovoltaic cells 15, the above-described photovoltaic cells can be used.

[0044] For example, the photovoltaic cell 15 may be a back contact type photovoltaic cell having positive and negative electrodes on the first glass plate 11 side. In this case, when forming the wiring pattern 21 on the first glass plate 11 using a conductive adhesive, the wiring pattern 21 of the conductive adhesive is formed such that it corresponds to the positions of the positive and negative electrodes of the photovoltaic cell 15. Then, the photovoltaic cells 15 are arranged such that the positive and negative electrodes of the photovoltaic cells 15 are electrically connected to the positive and negative electrodes of the wiring pattern 21.

[0045] Next, as shown in FIG. 8, bus bar wirings 22a to 22k are formed so as to connect the wiring patterns 21 to each other. Each of the bus bar wirings 22a to 22k is connected to the wiring pattern 21 and can extract the electric power generated by the plurality of photovoltaic cells 15. As the bus bar wirings 22a to 22k, the above-described materials can be used.

[0046] In addition, in the present embodiment, after forming the bus bar wirings 22a to 22k, the wiring pattern 21 may be formed, and then a plurality of photovoltaic cells 15 may be arranged on the wiring pattern 21 (conductive adhesive).

[0047] Next, an intermediate adhesive film 13 is arranged between the first glass plate 11 and the second glass 12, and the first glass plate 11 and the second glass plate 12 are adhered using the intermediate adhesive film 13. That is, as shown in FIG. 9, the intermediate adhesive film 13 is arranged on the first glass plate 11. Then, as shown in FIG. 10, the second glass 12 is arranged on the intermediate adhesive film 13. And by heating and pressurizing these laminates to perform pressure bonding, the solar cell module 1 can be formed. That is, by heating and pressurizing the laminate, the intermediate adhesive film 13 melts, and the first glass plate 11 and the second glass plate 12 are adhered.

[0048] In addition, in the present embodiment, as shown in FIG. 4, an intermediate adhesive film 13_1 may be formed on the first glass plate 11, and the wiring pattern 21 may be formed on the intermediate adhesive film 13_1. In this case, by heating and pressurizing the laminate composed of the first glass plate 11, the intermediate adhesive film 13_1, the wiring pattern 21, the photovoltaic cell 15, the intermediate adhesive film 13_2, and the second glass plate 12, the intermediate adhesive films 13_1 and 13_2 melt and become integrated, and the first glass plate 11 and the second glass plate 12 are adhered using the intermediate adhesive films 13_1 and 13_2. Also, the photovoltaic cell 15 is fixed using the intermediate adhesive films 13_1 and 13_2.

[0049] By using the manufacturing method described above, the solar cell module according to the present embodiment can be manufactured. Since the wiring pattern 21 of the solar cell module manufactured by the manufacturing method according to the present embodiment is composed of a conductive adhesive, compared with the case where the wiring pattern 21 is composed of a metal material, it is possible to suppress the reflection of sunlight by the wiring pattern. Therefore, it is possible to suppress the impairment of the design property due to the wiring provided in the solar cell module.

[0050] Also, when the wiring pattern 21 is formed on the first glass plate 11, a plurality of photovoltaic cells 15 can be adhered onto the first glass plate 11 using a conductive adhesive, and the plurality of photovoltaic cells 15 and the wiring pattern 21 can be electrically connected. That is, since the adhesion and electrical connection of the plurality of photovoltaic cells 15 can be carried out at once, the manufacturing process can be simplified.

[0051] As described above, the present invention has been described with reference to the above embodiments. However, the present invention is not limited only to the configurations of the above embodiments, and of course includes various modifications, corrections, and combinations that can be made by those skilled in the art within the scope of the invention of the claims of the present patent application.

Explanation of Reference Numerals

[0052] 1, 1a Photovoltaic module 11 First light-transmitting member (first glass plate) 12 Second light-transmitting member (second glass plate) 13, 13_1, 13_2 Intermediate adhesive film 15 Photovoltaic cell 16a~16j Photovoltaic unit 21, 21h, 21v Wiring pattern 22a~22k Busbar wiring 31a~31d Support member

Claims

1. a first light-transmitting member, a second light-transmitting member disposed to face the first light-transmitting member, an intermediate adhesive film disposed between the first light-transmitting member and the second light-transmitting member, a plurality of solar cells disposed between the first light-transmitting member and the second light-transmitting member, and a wiring pattern made of a conductive adhesive electrically connecting the plurality of solar cells. A solar cell module.

2. The solar cell module according to claim 1, wherein the wiring pattern adheres the plurality of solar cells to the first light-transmitting member.

3. Each of the solar cells is a back-contact type solar cell having a positive electrode and a negative electrode on the side of the first light-transmitting member, and the wiring pattern is provided at positions corresponding to the positive electrode and the negative electrode of the solar cell. The solar cell module according to claim 1 or 2.

4. The solar cell module according to claim 1 or 2, wherein the conductive adhesive is a transparent conductive adhesive.

5. The solar cell module according to claim 1 or 2, further comprising a bus bar wiring connected to the wiring pattern and extracting the power generated by the plurality of solar cells.

6. The bus bar wiring is disposed around the position where the plurality of solar cells are disposed, a support member for supporting the solar cell module is provided at the outer edge of the solar cell module, and when the solar cell module is viewed in plan, the bus bar wiring and the support member are disposed so as to overlap each other. The solar cell module according to claim 5.

7. The solar cell module according to claim 1 or 2, wherein the first light-transmitting member and the second light-transmitting member are made of glass plates.

8. a step of forming a wiring pattern using a conductive adhesive on the first light-transmitting member or on the intermediate adhesive film formed on the first light-transmitting member, a step of disposing a plurality of solar cells on the conductive adhesive and electrically connecting the plurality of solar cells and the wiring pattern, and a step of adhering the first light-transmitting member and the second light-transmitting member using an intermediate adhesive film disposed between the first light-transmitting member and the second light-transmitting member. A method for manufacturing a solar cell module.

9. The step of forming the wiring pattern is a step of forming a wiring pattern on the first light-transmitting member using the conductive adhesive. The plurality of photovoltaic cells are adhered onto the first light-transmitting member using the conductive adhesive. The method for manufacturing a solar cell module according to claim 8.

10. Each of the photovoltaic cells is a back-contact type photovoltaic cell having a positive electrode and a negative electrode on the side of the first light-transmitting member. When forming the wiring pattern using the conductive adhesive, the wiring pattern of the conductive adhesive is formed such that the wiring pattern corresponds to positions of the positive electrode and the negative electrode of the photovoltaic cell. The method for manufacturing a solar cell module according to claim 8 or 9.

11. The method for manufacturing a solar cell module according to claim 8 or 9, further comprising a step of forming a bus bar wiring connected to the wiring pattern and extracting electric power generated by the plurality of photovoltaic cells.

12. The method further comprises a step of providing a support member for supporting the solar cell module at an outer edge of the solar cell module, When the solar cell module is viewed in plan, the bus bar wiring and the support member are arranged so as to overlap each other. The method for manufacturing a solar cell module according to claim 11.

Citation Information

Patent Citations

  • Solar cell color toning adhesive film and the solar cell

    JP2001053298A