JP2008311486A - Solar cell module, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar cell module composed by tightly jointing a first support body with solar cell elements formed thereon and/or a second support body facing the first support body to an FRP board without preheating the FRP board; and its manufacturing method. <P>SOLUTION: In this solar cell module 100 provided with the first support body 3 with the solar cell elements 1 formed thereon, and the second support body 4 sandwiching the solar cell elements 1 by facing the first support body 3, the first support body 3 and/or the second support body 4 are jointed to the FRP board 2 through a second adhesive layer 6, and the second adhesive layer 6 contains at least a urethane resin, a silane coupling agent and ethyl alcohol. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, a first support body on which a solar cell element is formed and / or a second support body facing the first support body and a fiberglass reinforced plastics (hereinafter referred to as FRP) plate are joined. The present invention relates to a solar cell module and a manufacturing method thereof.

A conventional solar cell module includes an FRP substrate on the non-light-receiving surface side, and is manufactured through an adhesive process in which the FRP substrate is preheated in advance to prevent foaming at the time of adhesion, and then the EVA film is superimposed and heated. (For example, refer to Patent Document 1).
JP 2003-204073 A (page 3 to page 4, FIG. 1)

  Prior to the heat bonding between the FRP substrate and the EVA film at the time of sealing of the solar cell, the conventional solar cell module has a heating temperature of 50 to 200 ° C., a heating time of 1 minute to 10 hours (particularly, 10 minutes to 5 hours, especially 30 minutes to 4 hours is preferable), it is necessary to perform preheating, which not only complicates the manufacturing work but also increases the time required for the manufacturing process. there were.

  The present invention was made to solve the above-described problems, and it is not necessary to heat-bond the solar cell and the FRP substrate, and in addition, the solar cell element can be formed without preheating the FRP plate. A solar cell module in which the first support and / or the second support facing the first support and the FRP plate are firmly bonded and a method for manufacturing the solar cell module are provided.

  The solar cell module according to the present invention includes a first support on which a solar cell element is formed, and a second support that faces the first support and sandwiches the solar cell element. In the solar cell module, the first support and / or the second support and the FRP plate are joined via an adhesive layer, and the adhesive layer contains at least a urethane resin, a silane coupling agent, and ethyl alcohol. To do.

Moreover, in the solar cell module according to the present invention, as necessary, the first support body has the solar cell element formed on one surface and aluminum deposited on the other surface.
Moreover, in the solar cell module according to the present invention, a first support body on which solar cell elements are formed, and a second support body that faces the first support body and sandwiches the solar cell elements, In the solar cell module provided, the first support, the second support and the solar cell element are sandwiched between two opposing FRP plates, and the size of the opposing surfaces of the FRP plates is The two FRP plates facing each other are bonded to each other in a region that is wide with respect to the surface of the first support and the second support and does not overlap with the first support and the second support. Has been.

  In the method for manufacturing a solar cell module according to the present invention, a first support body on which solar cell elements are formed, a second support body that faces the first support body and sandwiches the solar cell elements, The first support and / or the second support having an adhesive layer obtained by applying and drying an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture. The FRP plate molded using the FRP containing moisture is brought into contact with the FRP resin through the adhesive layer before the resin of the FRP is solidified.

  Moreover, in the manufacturing method of the solar cell module according to the present invention, the first support on which the solar cell element is formed, and the second support that faces the first support and sandwiches the solar cell element. In the method of manufacturing a solar cell module comprising: the first support having an adhesive layer applied with an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture and dried; and / or The second support and a solidified FRP plate having a resin layer coated with a resin containing moisture are brought into contact with each other through the adhesive layer and the resin layer before the resin layer is solidified.

  The solar cell module according to the present invention includes a first support on which a solar cell element is formed, and a second support that faces the first support and sandwiches the solar cell element. In the solar cell module, the first support and / or the second support and the FRP plate are joined via an adhesive layer, and the adhesive layer contains at least a urethane resin, a silane coupling agent, and ethyl alcohol. By doing so, the adhesive component contained in the adhesive layer reacts with the resin used for the FRP plate, and firmly bonds the first support and / or the second support to the FRP plate. Can do. Moreover, since the protective plate is an FRP plate, the solar cell module can be reduced in weight, and moisture can be prevented from entering the solar cell module.

  Moreover, in the solar cell module according to the present invention, if necessary, the first support is formed by forming the solar cell element on one surface and depositing aluminum on the other surface. Light incident from the light-receiving surface side of the solar cell module and transmitted between the solar cell elements or adjacent solar cell elements is diffusely reflected to the light-receiving surface side by aluminum deposited on the non-light-receiving surface and is incident again on the solar cell element. Thus, the conversion efficiency from light energy to electrical energy can be increased.

  Moreover, in the solar cell module according to the present invention, a first support body on which solar cell elements are formed, and a second support body that faces the first support body and sandwiches the solar cell elements, In the solar cell module provided, the first support, the second support and the solar cell element are sandwiched between two opposing FRP plates, and the size of the opposing surfaces of the FRP plates is The two FRP plates facing each other are bonded to each other in a region that is wide with respect to the surface of the first support and the second support and does not overlap with the first support and the second support. The two FRP plates facing each other without being restricted by the need to use an adhesive having good affinity with either the first support or the second support and the FRP plate Can be firmly joined.

  In the method for manufacturing a solar cell module according to the present invention, a first support body on which solar cell elements are formed, a second support body that faces the first support body and sandwiches the solar cell elements, The first support and / or the second support having an adhesive layer obtained by applying and drying an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture. The FRP plate that is molded using the FRP containing moisture and the FRP plate containing moisture is brought into contact with the FRP resin through the adhesive layer before the FRP resin is solidified, whereby the moisture contained in the FRP resin. The adhesive function of the adhesive layer on the first support and / or the second support can be expressed, and the first support and / or the second support and the FRP plate can be firmly bonded. . Further, the first support and / or the second support can be easily joined to the FRP plate.

  Moreover, in the manufacturing method of the solar cell module according to the present invention, the first support on which the solar cell element is formed, and the second support that faces the first support and sandwiches the solar cell element. In the method of manufacturing a solar cell module comprising: the first support having an adhesive layer applied with an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture and dried; and / or By bringing the second support and a solidified FRP plate having a resin layer coated with a resin containing moisture into contact with each other through the adhesive layer and the resin layer before the resin layer is solidified, the resin The layer realizes the bonding with the FRP plate, and the adhesive function of the adhesive layer on the first support and / or the second support is expressed by the moisture contained in the resin layer. as well as/ May adhesive layer on the second support member is bonded to the resin layer, as a result, strongly bonded to the first support and / or the second support and the FRP plate. Further, the first support and / or the second support can be easily joined to the FRP plate.

(First embodiment of the present invention)
FIG. 1 is a cross-sectional view showing a method for manufacturing a solar cell module according to the first embodiment for carrying out the present invention, and FIG. 2 shows another method for manufacturing the solar cell module according to the first embodiment for carrying out the present invention. FIG. 3A is a sectional view showing a method, FIG. 3A is a sectional view showing another solar cell module in the first embodiment for carrying out the present invention, and FIG. 3B is a first section for carrying out the present invention. It is sectional drawing which shows the further another solar cell module in embodiment of this.

  1 to 3, the solar cell element 1 is used by being sealed in some container or resin so as to avoid the influence of moisture and dust, and to withstand the impact of wind or pebbles or wind pressure. In this case, a large number of elements are connected in series or in parallel so that a necessary voltage corresponding to the purpose of use can be obtained.

  One unit in use is referred to as a module. Examples of the module structure include a two-plate structure, a single-substrate structure, a single front-plate structure, and a resin-embedded structure. The solar cell module 100 according to the first embodiment has a structure in which a protective plate is provided on the light receiving surface side and / or the non-light receiving surface side, and the FRP plate 2 is provided on at least one surface. . In addition, when the solar cell module 100 has a two-plate structure and the FRP plate 2 is disposed only on one surface of the light receiving surface side or the non-light receiving surface side, the other without the FRP plate 2 disposed. As for the surface, a glass plate, a metal (aluminum, stainless steel, etc.) plate or a resin plate is provided.

Hereinafter, a method for manufacturing the solar cell module 100 when the FRP plate 2 is disposed on the light receiving surface side will be described with reference to FIGS. 1 and 2.
The solar cell element 1 is formed on the first support 3, a second support 4 having transparency is disposed opposite to the first support 3, and the solar cell element 1 is sunlit via the first adhesive layer 5. The battery element 1 is sandwiched between the first support 3 and the second support 4.

  In addition, the solar cell in the first embodiment is an amorphous solar cell using amorphous silicon that has a high absorption of visible light and can be formed into a thin film among silicon-based solar cells, or a metal oxide semiconductor as a semiconductor. It is a dye-sensitized solar cell used as a material, and the solar cell element 1 is formed on the first support 3 by an existing manufacturing method.

  The first support 3 is a plate-like material such as a glass plate, a metal (aluminum, stainless steel, etc.) plate or a resin plate, or a film-like material such as a metal foil or a resin film. For example, polyamideimide film, polyarylate film, polyesterimide / fluororesin film, fluororesin film, polyamide film, polyethylene terephthalate (hereinafter referred to as PET) film, polyethylene naphthalate film, polyethersulfone film, etc. Can be used. Although these may use a single film, you may use as a laminated | multilayer film which laminated | stacked 2 or more types. In the first embodiment, as the first support 3, tetrafluoroethylene-ethylene copolymer obtained from tetrafluoroethylene and an ethylene copolymer among fluororesin films excellent in corrosion resistance is used. Resin (ETFE) is used.

  The second support 4 is a plate-like material such as a transparent glass plate or resin plate, or a film-like material such as a resin film. For example, fluorine resin film, polycarbonate film, polyarylate film, polyethersulfone film, polysulfone film, polyacrylonitrile film, cellulose acetate film, acrylic resin film, weather resistant PET film, weather resistant polypropylene film, glass fiber reinforced polyester film, A glass fiber reinforced acrylic resin film, a glass fiber reinforced polycarbonate film, or the like can be used. Although these may use a single film, you may use as a laminated | multilayer film which laminated | stacked 2 or more types. In the first embodiment, the second support 4 is a tetrafluoroethylene-ethylene copolymer obtained from tetrafluoroethylene and an ethylene copolymer among fluororesin films having excellent corrosion resistance. Resin (ETFE) is used.

  The first adhesive layer 5 has a concavo-convex shape on the laminated surface contacting the solar cell element 1 and the first support 3, and therefore needs to be laminated so that the concavo-convex portion is filled with an adhesive. For this reason, it is necessary to use an adhesive having a function as a filler in addition to adhesiveness, transparency, weather resistance, and the like. For example, a thermal adhesive resin having excellent thermal fluidity has a required thickness. Is preferably used in terms of performance, productivity and economy. Examples of such a heat-adhesive resin include ethylene-vinyl acetate copolymer (Ethylence-Vinyl Acetate: hereinafter referred to as EVA), ethylene / α-olefin copolymer polymerized using a single site catalyst, ethylene-acrylic. Acid methyl copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, linear low density polyethylene, acrylic resin, silicone resin, polystyrene series , Polyolefin-based, polydiene-based, polyester-based, polyurethane-based, fluororesin-based, polyamide-based elastomers and the like can be used. Among these, it is preferable to select and use as appropriate according to the material of the laminated surface. . Moreover, in order to improve the weather resistance, these heat-adhesive resins can be used by appropriately mixing a crosslinking agent, an ultraviolet absorber, a coupling agent, and the like. In the first embodiment, EVA is used as the first adhesive layer 5.

  An adhesive is applied to the surface of the second support 4 on the light-receiving surface side, and the applied adhesive is dried to form the second adhesive layer 6 (FIGS. 1A and 2). (A)). Usually, it is difficult to firmly bond the second support 4 to the FRP plate 2 without heat treatment, but the inventor of the present application uses the adhesive having the following components to It has been found that the body 4 and the FRP plate 2 can be bonded satisfactorily.

(Adhesive component)
-Urethane resin: 1-5% by weight
Silane coupling agent: 1 to 5% by weight
・ Ethyl alcohol: 1 to 5% by weight
Water In particular, when the urethane resin is less than 1% by weight, the adhesive function of the adhesive is lowered, and when the urethane resin is more than 5% by weight, the adhesive has a high viscosity, and the second support 4 It becomes difficult to apply thinly and uniformly on top.
When the silane coupling agent is less than 1% by weight, the adhesiveness is lowered. When the silane coupling agent is more than 5% by weight, the tackiness is increased and the handling property is lowered.

Further, when the amount of ethyl alcohol is less than 1% by weight, the liquid stability of the adhesive is lowered, and when the amount of ethyl alcohol is more than 5% by weight, the adhesiveness is lowered.
Water is a component that occupies most of the adhesive, and various additives are added as necessary to improve the dispersibility of the urethane resin in the adhesive and the wettability to the second support 4. It is also possible.

In addition, application | coating of the adhesive agent to the surface of the 2nd support body 4 is not restricted to when apply | coating to the whole surface of the 2nd support body 4, as shown to Fig.1 (a) or FIG.2 (a), A part of the surface of the second support 4 may be used as necessary.
The second adhesive layer 6 attached to the surface of the second support 4 can exhibit adhesiveness when it comes into contact with a resin material containing moisture.

  For this reason, when the FRP plate 2 and the second support 4 are bonded, as shown in FIG. 1B, when the FRP plate 2 is molded by the mold 200 using the FRP 2a containing moisture, Before the resin of FRP 2a is solidified, the second support 4 with adhesive is attached to the FRP 2a. As the FRP 2a used for the FRP plate 2, a material containing a polyester resin and moisture is used, and the adhesion function of the second adhesive layer 6 on the second support 4 is expressed by the moisture contained in the FRP 2a. The polyester resin of FRP 2a and the second support 4 are firmly joined (FIG. 1 (c)).

  Moreover, in order to join the 2nd support body 4 with an adhesive agent etc. to the surface of FRP board 2 already solidified, as shown in FIG.2 (b), the surface of FRP board 2 contains a polyester resin and a water | moisture content. The resin material 7 is applied to form the resin layer 7 (FIG. 2B), and the second support 4 with adhesive is applied to the resin layer 7 on the FRP plate 2 before the resin layer 7 is solidified. It is done by pasting it on. At this time, the resin layer 7 is bonded to the resin contained in the FRP plate 2, and the second adhesive layer 6 on the second support 4 is polyester in the resin layer 7 due to moisture contained in the resin layer 7. Since the resin is also bonded, as a result, the resin of the FRP plate 2 and the second support 4 can be firmly bonded (FIG. 2C).

  In the first embodiment, the solar cell module 100 in the case where the FRP plate 2 is disposed on the light receiving surface side has been described. However, as shown in FIG. 3A, the FRP plate is disposed on the non-light receiving surface side. 2 or when the FRP plates 2 are respectively disposed on the light receiving surface side and the non-light receiving surface side as shown in FIG. 3B, the above-described solar cell shown in FIG. 1 or FIG. The FRP plate 2 can be joined to the first support 3 and / or the second support 4 by the method for manufacturing the module 100.

  FRP has durability, but has low light resistance, and yellows due to sunlight. For this reason, the light transmittance of the sunlight in the yellowing part of FRP decreases, and there exists a possibility of reducing the conversion efficiency from the light energy by the solar cell module 100 to an electrical energy.

Therefore, the surface of the FRP plate 2 is covered with, for example, a paint containing a fluororesin and an ultraviolet absorber or a photo-oxidation reaction inhibitor, thereby suppressing yellowing of the FRP plate 2 and desired conversion. Efficiency can be maintained over a long period of time.
Further, on the coating agent coated on the surface of the FRP plate 2, light energy is absorbed through a non-volatile inorganic layer such as titanium oxide, and a chemical reaction is caused to another substance that does not absorb light. It is preferable to arrange a photocatalytic sheet.

(Second embodiment of the present invention)
FIG. 4 (a) is a cross-sectional view showing a first support in which a solar cell element is formed on one surface and aluminum is deposited on the other surface, and FIG. 4 (b) is a first view for carrying out the present invention. Sectional drawing which shows the solar cell module in 2 embodiment, FIG.5 (a) is sectional drawing which shows the aluminum sheet with an adhesive agent, FIG.5 (b) is another in 2nd Embodiment for implementing this invention It is sectional drawing which shows a solar cell module. 4 and 5, the same reference numerals as those in FIGS. 1 to 3 denote the same or corresponding parts, and the description thereof is omitted.

  In the second embodiment, the solar cell module 100 is different from the first embodiment only in that the solar cell module 100 has a layer on which the aluminum is deposited on the non-light-receiving surface side. Except for the effects, the same effects as those of the first embodiment are obtained.

As shown to Fig.4 (a), the 1st support body 3 has the solar cell element 1 formed in one surface, and the aluminum layer 8 which vapor-deposited aluminum is formed in the substantially whole surface of the other surface.
Using the first support 4 having the aluminum layer 8, the second adhesive layer is applied to the second support 4 on the light receiving surface side in the same manner as in the method of manufacturing the solar cell module 100 shown in FIG. By joining the FRP plate 2 via 6, it becomes possible to firmly join the resin of the FRP plate 2 and the second support 4, and as shown in FIG. In contrast, the solar cell module 100 having the aluminum layer 8 on the non-light-receiving surface side is completed.

  In addition, the FRP board 2 is joined to the 2nd support body 4 which is a light-receiving surface side through the 2nd contact bonding layer 6 and the resin layer 7 similarly to the manufacturing method of the solar cell module 100 mentioned above shown in FIG. This also makes it possible to firmly bond the resin of the FRP plate 2 and the second support 4. Further, when the FRP plate 2 is disposed on the non-light-receiving surface side, or when the FRP plate 2 is disposed on each of the light-receiving surface side and the non-light-receiving surface side, the above-described solar cell module shown in FIG. The FRP plate 2 can be bonded to the first support 3 and / or the second support 4 by the manufacturing method 100.

  In the solar cell module 100 according to the second embodiment, the aluminum layer 8 is disposed on the non-light-receiving surface side with respect to the solar cell element 1 so that the light enters the solar cell element 1 or is adjacent to the light-receiving surface side. The light transmitted between the solar cell elements 1 is diffusely reflected to the light receiving surface side by the aluminum layer 8 and is incident on the solar cell element 1 again, whereby the conversion efficiency from light energy to electric energy can be increased.

  In addition, it is usually difficult to firmly bond a metal such as aluminum to FRP, but the present inventor can bond aluminum and FRP satisfactorily by using the above-described adhesive. I found out.

In the second embodiment, the aluminum layer 8 is disposed on the non-light-receiving surface side with respect to the solar cell element 1 by vapor-depositing aluminum on the first support 3. The aluminum layer 8 may be disposed on the non-light-receiving surface side with respect to the solar cell element 1 using an aluminum sheet 20 with an adhesive, which will be described later, shown in FIG.
Here, the aluminum sheet 20 has an aluminum layer 8 in which aluminum is vapor-deposited on both surfaces of the third support 21.

  The third support 21 is preferably a PET film. Even if the PET film is thin, it has excellent durability and bending resistance, and can form a uniform mirror surface state when aluminum is deposited, and it is possible to obtain an aluminum sheet 20 that is lightweight and has good handleability. Become.

  As shown in FIG. 2, an adhesive is applied to the surface of the aluminum sheet 20 in FIG. 5A, and the applied adhesive is dried to form the second adhesive layer 6 (FIG. 5). 5 (a)). Normally, it is difficult to firmly bond the aluminum sheet 20 to the FRP plate 2, but the aluminum sheet 20 and the FRP plate 2 can be bonded satisfactorily by using the adhesive having the components described above. Is possible.

Similar to the method of joining the second support 4 with adhesive and the FRP plate 2 shown in FIG. 1 or FIG. 2 to the one surface on the non-light-receiving surface side of the aluminum sheet 20 with adhesive, the FRP The joining method of the FRP board 2 and the 2nd support body 4 with an adhesive agent mentioned above shown in FIG. 1 or FIG. 2 on the other surface used as the light-receiving surface side of the aluminum sheet 20 with an adhesive agent. Similarly, by joining the FRP plate 2 on the non-light-receiving surface side of the solar cell module 100 shown in FIG. 3B, as shown in FIG. 5B, the non-light-receiving surface side with respect to the solar cell element 1. The solar cell module 100 provided with the aluminum layer 8 can be obtained.
As described above, by using the aluminum sheet 20 with an adhesive, the aluminum layer 8 is easily disposed on the solar cell module 100 that does not include the aluminum layer 8 on the non-light-receiving surface side with respect to the solar cell element 1. Can be made.

(Third embodiment of the present invention)
FIG. 6A is a plan view showing a solar cell module according to a third embodiment for carrying out the present invention, and FIG. 6B is an arrow AA line of the solar cell module shown in FIG. FIG. 7 is a cross-sectional view showing another method for manufacturing the solar cell module in the third embodiment for carrying out the present invention. 6 and 7, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts, and the description thereof is omitted.

  In the third embodiment, only the two FRP plates facing each other are joined together, which is different from the first embodiment and the second embodiment. Except for the effects, the same operational effects as the first embodiment and the second embodiment are exhibited.

  As shown in FIG. 6, the size of the opposing surfaces of the two FRP plates 2 is wider than the size of the surfaces of the first support 3 and the second support 4, and the first support In a region that does not overlap 3 and the second support 4 (hereinafter referred to as a non-overlapping region), two opposing FRP plates 2 are joined via a third adhesive layer 9.

  The third adhesive layer 9 is formed, for example, by applying a resin material containing a polyester resin to the surface of one of the two FRP plates 2 facing each other to form a resin layer 7. The resin layer 7 is solidified. Before performing, the other FRP plate 2 is adhered to the portion of the one FRP plate 2 to which the resin layer 7 is applied. At this time, since the resin layer 7 is bonded to the resin contained in the two FRP plates 2 facing each other, the FRP plates 2 can be firmly bonded to each other.

  Note that the third adhesive layer 9 may be disposed also in a region overlapping with the first support 3 and the second support 4 (hereinafter referred to as a superimposed region). In the embodiment, since the second adhesive layer 6 is not disposed on the surfaces of the first support 3 and the second support 4, the first support 3 or the second support is provided in the overlapping region. The body 4 and the FRP plate 2 cannot be firmly joined. Therefore, it is preferable to dispose the third adhesive layer 9 so as to surround the first support 3 and the second support 4 at least in the non-overlapping region.

  Further, in order to join two FRP plates 2 facing each other without using an adhesive, as shown in FIG. 7, when one FRP plate 2 is molded by a mold 200 using FRP 2a, Before the resin of the FRP 2a is solidified, the other FRP plate 2 is brought into close contact with the FRP 2a with the first support 3 and the second support 4 provided with the solar cell elements 1 and the like sandwiched therebetween. By solidifying, the FRP plates 2 facing each other can be firmly bonded to each other by the polyester resin of FRP 2a.

  As described above, in the solar cell module according to the third embodiment, the two FRP plates 2 facing each other are joined in the non-overlapping region, whereby the first support body 3 or the second support body. The two FRP plates 2 facing each other can be firmly joined without being restricted by the need to use an adhesive having good affinity with either the body 4 or the FRP plate 2, and has excellent weather resistance. A solar cell module can be obtained.

Aluminum was vapor-deposited on both sides of the PET film, and an aluminum sheet 20 having both mirror surfaces was created.
Next, an adhesive composed of a urethane resin, a silane coupling agent, ethyl alcohol, and the remaining water was applied to both surfaces of the aluminum sheet 20 and dried to prepare an aluminum sheet 20 with an adhesive.
Next, the glass fiber was impregnated with a polyester resin containing moisture to form an FRP layer.

Example 1
Before the resin impregnated with the FRP layer was solidified, an aluminum sheet 20 with an adhesive was pasted to obtain a molded product.

(Example 2)
After the FRP layer was completely solidified, a polyester resin containing the same moisture was again applied to the surface of the FRP layer, and an aluminum sheet 20 with an adhesive was attached to obtain a molded product.

(Example 3)
In Example 1, a glass fiber was placed on the surface of the aluminum sheet 20 with an adhesive, and a fiber in which a polyester resin containing the same moisture was placed was impregnated to form another FRP layer. As a result, a molded article in which the aluminum sheet with adhesive 20 was disposed between the FRP layers was obtained.
When the molded products according to Example 1 to Example 3 were examined, it was confirmed that the aluminum sheet 20 was favorably bonded to the FRP layer.

  Next, the solar cell element 1, the first support body 3, the first support body 3, and the first support body 3, in which the aluminum sheet 20 and the FRP plate 2 are not disposed on the surfaces of the first support body 3 and the second support body 4, respectively. Characteristics of the support body 4 and the first adhesive layer 5 (hereinafter referred to as a solar cell element sheet), and the FRP plate 2 is disposed on the light receiving surface side of the solar cell element sheet. The characteristics of the solar cell module 100 in which the FRP plate 2 and / or the aluminum sheet 20 are disposed on the non-light-receiving surface side of the above were verified. FIG. 8 is a table showing the characteristics of the solar cell element sheet, and FIG. 9 is a table showing the characteristics of the solar cell module 100.

  In FIG. 9, Example 4 is the solar cell module 100 which has arrange | positioned the FRP2 board which used the unsaturated polyester resin as the resin material in the light-receiving surface side and non-light-receiving surface side of a solar cell element sheet | seat. Moreover, Example 5 is the solar cell module 100 in which a photocatalytic sheet is disposed on the FRP plate 2 on the light receiving surface side in the solar cell module 100 of Example 4. Example 6 is a solar cell module in which an aluminum sheet 20 is disposed between the FRP plate 2 on the non-light-receiving surface side and the first support 3 in the solar cell module 100 of Example 5.

  Similarly, Example 7 is a solar cell module 100 in which FRP2 plates using other unsaturated polyester resins as resin materials are disposed on the light receiving surface side and the non-light receiving surface side of the solar cell element sheet. Moreover, Example 8 is the solar cell module 100 in which a photocatalytic sheet is disposed on the FRP plate 2 on the light receiving surface side in the solar cell module 100 of Example 7. Example 9 is a solar cell module in which an aluminum sheet 20 is disposed between the FRP plate 2 on the non-light-receiving surface side and the first support 3 in the solar cell module 100 of Example 8.

As shown in FIGS. 8 and 9, the maximum output of the solar cell module 100 is about 94% of the maximum output of the solar cell element sheet.
Thus, even when the solar cell element sheet was processed by being sandwiched between the two FRP plates 2, it was confirmed that the power generation efficiency was not significantly affected.

It is sectional drawing which shows the manufacturing method of the solar cell module in 1st Embodiment for implementing this invention. It is sectional drawing which shows the other manufacturing method of the solar cell module in 1st Embodiment for implementing this invention. (A) is sectional drawing which shows the other solar cell module in 1st Embodiment for implementing this invention, (b) is another solar cell module in 1st Embodiment for implementing this invention. FIG. (A) is sectional drawing which shows the 1st support body in which the solar cell element is formed in one surface, and aluminum is vapor-deposited in the other surface, (b) is 2nd Embodiment for implementing this invention It is sectional drawing which shows the solar cell module in. (A) is sectional drawing which shows the aluminum sheet with an adhesive agent, (b) is sectional drawing which shows the other solar cell module in 2nd Embodiment for implementing this invention. (A) is a top view which shows the solar cell module in 3rd Embodiment for implementing this invention, (b) is sectional drawing of the arrow AA line of the solar cell module shown to (a). It is sectional drawing which shows the other manufacturing method of the solar cell module in 3rd Embodiment for implementing this invention. It is the table | surface which showed the characteristic of the solar cell element sheet | seat. It is the table | surface which showed the characteristic of the solar cell module.

Explanation of symbols

1 Solar cell element
2 FRP board
2a FRP
3 First support
4 Second support
5 First adhesive layer
6 Second adhesive layer
7 Resin layer
8 Aluminum layer
9 Third adhesive layer 20 Aluminum sheet 100 Solar cell module 200 Mold

Claims (5)

In a solar cell module comprising: a first support body on which a solar cell element is formed; and a second support body that faces the first support body and sandwiches the solar cell element.
The first support and / or the second support and the FRP plate are bonded via an adhesive layer, and the adhesive layer contains at least a urethane resin, a silane coupling agent, and ethyl alcohol. Solar cell module. In the solar cell module according to claim 1,
The solar cell module, wherein the solar cell element is formed on one surface of the first support and aluminum is deposited on the other surface. In a solar cell module comprising: a first support body on which a solar cell element is formed; and a second support body that faces the first support body and sandwiches the solar cell element.
The first support, the second support and the solar cell element are sandwiched between two opposing FRP plates,
A region where the size of the opposing surfaces of the FRP plate is larger than the size of the surfaces of the first support and the second support and does not overlap with the first support and the second support The solar cell module according to claim 1, wherein the two FRP plates facing each other are joined. In a method for manufacturing a solar cell module, comprising: a first support body on which a solar cell element is formed; and a second support body that faces the first support body and sandwiches the solar cell element.
The first support and / or the second support having an adhesive layer obtained by applying and drying an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture, and an FRP containing moisture. A method of manufacturing a solar cell module, comprising: bringing an FRP plate to be molded into contact with the FRP plate through the adhesive layer before the resin of the FRP is solidified. In a method for manufacturing a solar cell module, comprising: a first support body on which a solar cell element is formed; and a second support body that faces the first support body and sandwiches the solar cell element.
The first support and / or the second support having an adhesive layer obtained by applying and drying an adhesive containing at least a urethane resin, a silane coupling agent, ethyl alcohol and moisture, and a resin containing moisture A method for producing a solar cell module, comprising: bringing a solidified FRP plate having an applied resin layer into contact with the adhesive layer and the resin layer before the resin layer is solidified.

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