JPWO2019065430A1 - Solar cell module and manufacturing method of solar cell module - Google Patents

Abstract

A solar cell element 10 having an element body 12 and at least a pair of electrodes 11 connected to the element body 12, a take-out wiring 20 connected to each of the at least a pair of electrodes 11, and a moisture-proof seal for sealing the solar cell element 10. In the solar cell module 1 having the film 30, the moisture-proof film 30 has an opening 40 that exposes at least a pair of electrodes 11 to the outside, and the take-out wiring 20 is external through the opening 40, respectively. The electrode 11 extends in the first direction in the plan view of the solar cell element 10, and the second direction Y between each of the openings 40 and the element body 12 is orthogonal to the first direction in the plan view. Distance L is 1 mm or more.

Description

The present invention relates to a solar cell module and a method for manufacturing the solar cell module.
The present application claims priority based on Japanese Patent Application No. 2017-190438 filed in Japan on September 29, 2017, the contents of which are incorporated herein by reference.

Conventionally, a solar cell having a solar cell element provided with an electrode, an extraction wire connected to the electrode, and a moisture-proof film for sealing the solar cell element, as shown in Patent Document 1 and Patent Document 2 below. The module is known.
In this solar cell module, the periphery of the solar cell module is covered with a moisture-proof film in order to prevent the power generation characteristics from being deteriorated due to the intrusion of moisture.
When covering the solar cell module with the moisture-proof film in this way, it is necessary to conduct the electrodes with the outside of the moisture-proof film. Therefore, the take-out wiring is connected to the electrode from the outside while being sandwiched between the moisture-proof films in the stacking direction.

Japanese Patent No. 5106876 Japanese Patent No. 5510771

However, in the conventional solar cell module, moisture may enter the moisture-proof film through the boundary between the adhesive layer to which the moisture-proof film is adhered and the take-out wiring, and the power generation characteristics may be deteriorated. Although various proposals have been made for the material of the moisture-proof film itself in Patent Document 1 and Patent Document 2 and later, the possibility of problems due to the above-mentioned structural factors has not been examined.

An object of the present invention is to provide a solar cell module capable of effectively preventing the invasion of moisture from the outside and maintaining the power generation characteristics.

In order to solve the above problems, the present invention proposes the following means.
The solar cell module according to the present invention includes a solar cell element including an element body and at least a pair of electrodes connected to the element body, take-out wiring connected to each of the at least a pair of electrodes, and the solar cell element. A solar cell module comprising a moisture-proof film for sealing the moisture-proof film, wherein the moisture-proof film has an opening that exposes at least the pair of electrodes to the outside, and each of the take-out wires has the opening. The electrode is wired from the outside through the solar cell element, extends in the first direction in the plan view of the solar cell element, and is orthogonal to the first direction in the plan view between each of the openings and the element body. The distance in the second direction is 1 mm or more.

Further, the method for manufacturing a solar cell module according to the present invention is the above-mentioned method for manufacturing a solar cell module, in which the first sealing step in which the solar cell element is sealed by the moisture-proof film and the moisture-proof film. In addition, an opening forming step of forming the opening between each of the openings and the element main body so that the distance in the second direction is 1 mm or more in the plan view, and the taking-out wiring are performed. Each includes a wiring step of wiring from the outside through the opening.

According to the present invention, an opening is formed in the moisture-proof film, and the take-out wiring is routed from the outside through the opening. Therefore, the power can be taken out from the solar cell element by connecting the take-out wiring to an external device. Further, since the distance between each of the openings and the element body in the second direction is 1 mm or more, the distance from each of the openings to the element body can be secured. As a result, it is possible to effectively prevent the intrusion of moisture from the outside into the element main body through the opening and maintain the power generation characteristics. The distance between each of the openings and the element body in the second direction is preferably 2 mm or more, more preferably 3 mm or more, and most preferably 5 mm or more.

Further, at least one of the openings may be sealed with a sealant.

In this case, by sealing at least one of the openings with a sealing agent, between the adhesive layer and the take-out wiring, for example, in a configuration in which the take-out wiring is sandwiched between the moisture-proof film via the adhesive layer. No boundary is formed in. As a result, it is possible to reliably and inexpensively seal the periphery of the take-out wiring in the opening. In this way, it is possible to reliably prevent the intrusion of moisture from the outside.

Further, the solar cell module may include a light receiving portion, and the opening may be arranged on the side of the moisture-proof film facing the light receiving portion or on the opposite side.

For example, when the opening in which the take-out wiring is arranged is arranged on the side where the light receiving portion of the solar cell element faces, the surface opposite to the side where the light receiving portion of the solar cell module faces is used as an external mounting surface. The take-out wiring is not located on the mounting surface side, and the take-out wiring can be easily connected to an external device.

The sealing agent contains a silicone resin material, an acrylic resin material, or a rubber material as a main component, and may be filled in the opening.

In this case, since the sealant is a silicone resin material, an acrylic resin material, or a rubber material and is filled in the opening, the sealant can be easily provided with moisture resistance.

The solar cell element may be a dye-sensitized solar cell element, an organic thin-film solar cell, or a solar cell element having a perovskite structure.

In this case, it is possible to effectively prevent the intrusion of water from the outside and suppress the deterioration of the power generation characteristics, especially in the solar cell element whose power generation characteristics are likely to deteriorate due to the intrusion of water.

In the method for manufacturing the solar cell module, further, after the first sealing step of sealing the solar cell element with the moisture-proof film and the wiring step, at least one of the openings is sealed with a sealing agent. The solar cell element having the second sealing step and the solar cell element being sealed by the moisture-proof film may be obtained through the first sealing step.

According to the present invention, it is possible to effectively prevent the intrusion of water into the solar cell module from the outside, thereby suppressing the deterioration of the power generation characteristics of the solar cell module.

It is a top view of the solar cell module which concerns on one Embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line AA'in the solar cell module shown in FIG. FIG. 5 is a cross-sectional view taken along the line BB'in the solar cell module shown in FIG. It is a top view of the solar cell module which concerns on other embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line CC'in the solar cell module shown in FIG. FIG. 5 is a cross-sectional view taken along the line DD'in the solar cell module shown in FIG. It is (a) plan view of the solar cell module which concerns on a comparative example, and (b) (a) is a cross-sectional view taken along the line EE'. It is a figure which shows the result of the 1st verification test. It is a figure which shows the result of the 2nd verification test. It is a figure which shows the modification of the solar cell module shown in FIG.

(Embodiment)
The technical scope of the present invention is not limited to the following embodiments, and various modifications can be made without departing from the spirit of the present invention.
Hereinafter, the solar cell module 1 according to the embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the solar cell module 1 includes a solar cell element 10 having at least a pair of electrodes 11, an take-out wiring 20 connected to each of the electrodes 11, and a moisture-proof film 30 that seals the solar cell element 10. And have. The solar cell element 10 is formed in a rectangular shape in a plan view, and the electrode 11 extends in the lateral direction of the solar cell element 10 in a plan view.
In this specification, the electrode 11 is different from the counter electrode and the conductive film (transparent electrode) having conductivity, which will be described later. Examples of the electrode 11 include a metal terminal electrode and a terminal extraction electrode made of a metal tape such as copper or aluminum.

As shown in FIG. 2, a pair of moisture-proof films 30 are arranged so as to sandwich the solar cell elements 10 from both sides. The moisture-proof film 30 includes an upper moisture-proof film 30A and a lower moisture-proof film 30B. The upper moisture-proof film 30A is made by imparting a barrier property to a resin substrate, and the lower moisture-proof film 30B may be a metal foil such as aluminum, a composite film of aluminum and polyethylene terephthalate, or the like.
In the following description, the direction in which the moisture-proof film 30 sandwiches the solar cell element 10 from both sides (for example, when the solar cell element 10 is sandwiched between the pair of moisture-proof films 30 from above and below, the vertical direction) is referred to as a stacking direction Z. Further, in a plan view seen from the stacking direction Z, the lateral direction in which the electrode 11 extends is referred to as the first direction X, and the direction orthogonal to the first direction X (longitudinal direction) is referred to as the second direction Y.
In the solar cell element 10, the length of the first direction X may be longer than the length of the second direction Y, and the length of the first direction X and the length of the second direction Y may be the same. .. That is, the electrode 11 may extend in a direction in which the side of the solar cell element 10 extends in a plan view such as a longitudinal direction or a lateral direction of the solar cell element 10. Further, the electrode 11 may extend in a direction in which the side of the solar cell element 10 intersects the extending direction, and can be extended in any direction.
An adhesive layer 31 is interposed between the stacking directions Z of the pair of moisture-proof films 30. The pair of moisture-proof films 30 and the solar cell element 10 are fixed to each other by the adhesive layer 31.
In the present invention, the "moisture-proof film" is not particularly limited as long as it can sufficiently prevent the permeation of water vapor. Specifically, for example, a film having a water vapor transmittance of 8 × 10 ^-3 [g / m ² / day] or less at a temperature of 40 ° C. and a relative humidity of 90% can be used. The water vapor permeability is preferably 3 × 10 ^-3 or less, and more preferably 5 × 10 ^-4 or less.
The specific configuration of the material and thickness of the moisture-proof film is also not particularly limited, and for example, those described in JP-A-2015-027791A, JP-A-2014-043527, JP-A-2011-07742, etc. It can be adopted as appropriate.

The solar cell element 10 is preferably a dye-sensitized solar cell element, an organic thin-film solar cell, or a solar cell element having a perovskite structure. In the illustrated example, the solar cell element 10 is a dye-sensitized solar electric element. As shown in FIG. 1, the solar cell element 10 includes an element body 12 connected to an electrode 11. The element body 12 has a rectangular shape in a plan view.

The size of the first direction X of the electrode 11 is smaller than that of the second direction Y. A pair of electrodes 11 are provided at positions sandwiching the element body 12 in the second direction Y. In other words, the electrodes 11 are arranged at both ends of the element body 12 in the second direction Y. The element body 12 does not project outside the second direction Y from the electrode 11.
As shown in FIG. 2, the pair of electrodes 11 are located on one side of the stacking direction Z in the element body 12 (that is, on the upper side or the lower side of the element body 12 when both sides of the element body 12 face up and down). It is located in either one). The quantity of the electrodes 11 and the positional relationship between the electrodes 11 and the element body 12 are not limited to such an embodiment, and can be arbitrarily changed.

The element main body 12 has a light receiving portion (photoelectrode) 13 and a counter electrode (not shown) arranged on the light receiving portion 13 so as to face the stacking direction Z via a conductive material having a sealing function. It is equipped with a plurality of dye-sensitized solar cell cells (hereinafter, simply referred to as cells). A plurality of cells are arranged at intervals in both directions of the first direction X and the second direction Y. The plurality of cells are interposed between a pair of base materials (not shown) arranged at intervals in the stacking direction Z.
A conductive film (not shown) having conductivity is formed on the inner surface of each of the pair of base materials. The element main body 12 is roughly configured by electrically connecting a semiconductor layer (not shown) of the light receiving portion 13 and a catalyst layer (not shown) of the counter electrode to the conductive film. The light receiving unit 13 faces one of the stacking directions Z.

In the present embodiment, as shown in FIGS. 1 and 2, the upper moisture-proof film 30A of the moisture-proof film 30 is formed with an opening 40 that exposes the electrode 11 to the outside. The opening 40 has a rectangular shape extending in the first direction X and the second direction Y in a plan view. The size of the first direction X in the opening 40 is larger than that of the second direction Y. That is, the opening 40 has a rectangular shape that is long in the first direction X. The rectangular shape is formed by four sides. Of the four sides, the side having a length of 40a extending in the first direction X extends parallel to the first direction X. In other words, the opening 40 extends parallel to the electrode 11.

The opening 40 is arranged at a position of the upper moisture-proof film 30A that overlaps with the electrode 11 in a plan view. The opening 40 is arranged at the end of the electrode 11 in the first direction X. The opening 40 penetrates the upper moisture-proof film 30A and the adhesive layer 31.
The opening 40 is arranged on the side of the moisture-proof film 30 facing the light receiving portion 13 of the solar cell element 10. Therefore, in the state before being sealed by the sealing agent 50 described later, the connecting surface 11A on the side of the electrode 11 facing the light receiving portion 13 is exposed to the outside through the opening 40.

In the present embodiment, the take-out wiring 20 is wired from the outside through the opening 40. The take-out wiring 20 includes a covering portion 21. A connecting portion 22 from which the covering portion 21 has been peeled off is formed at the tip portion of the take-out wiring 20. In the illustrated example, the connecting portion 22 of the take-out wiring 20 is arranged inside the opening 40 together with the covering portion 21. The connecting portion 22 is connected to the connecting surface 11A of the electrode 11. As a result, the take-out wiring 20 and the electrode 11 are electrically connected to each other.

In the present embodiment, the distance L between each of the openings 40 and the element body 12 in the second direction Y is 1 mm or more. The distance L between each of the openings 40 and the element body 12 in the second direction Y is preferably 2 mm or more, more preferably 3 mm or more, and most preferably 5 mm or more. The upper limit of the distance L is preferably 20 mm or less from the viewpoint of widening the element body 12. That is, the distance L is preferably 1 mm to 20 mm, more preferably 2 mm to 20 mm, further preferably 3 mm to 20 mm, and most preferably 5 mm to 20 mm.
The distance L can be defined, for example, as follows. First, of the pair of sides of the opening 40 having a length of 40a, the side located inside the solar cell element 10 along the second direction Y is set as the first side. The distance from this first side to the boundary portion between the electrode 11 and the element body 12 toward the inside of the second direction Y is defined as the distance L1. On the other hand, the distance L2 is the distance from the side having a length of 40a facing the first side (hereinafter, also referred to as the second side) to the outer edge portion of the solar cell element 10 toward the outside in the second direction Y. The distance L is the shorter of the distance L1 and the distance L2. When the distance L1 and the distance L2 are the same, the distance L1 is defined as the distance L.
In the present embodiment, the distance L1 and the distance L2 are the same, and the distance L is equal to the distance L1. Further, the distance L is also equal to the distance L2.
In the present embodiment, since the first side of the opening 40 and the boundary portion are parallel, the distance L is equivalent over the entire length of the first side of the opening 40. In other words, the distance L is 1 mm or more over the entire length of the first side.
The first side of the opening 40 and the boundary portion may not be parallel to each other. Further, the opening 40 may have a shape other than a rectangle (such as an ellipse or a polygon having a pentagon or more with more sides than a quadrangle). In that case, the distance L refers to the shortest distance between each of the openings 40 and the outer edge portion of the element body 12 (the boundary portion between the electrode 11 and the element body 12 or the outer edge portion of the solar cell element 10).
The distance L can be adjusted by the length (length of the first direction X) and width (length of the second direction Y) of the electrode 11, the position where the opening 40 is formed, the size of the opening 40, and the like.

Next, the solar cell module 2 according to another embodiment of the present invention will be described.
In this embodiment, at least one of the openings 40 is sealed with a sealant 50. As shown in FIGS. 4 to 6, in the solar cell module 2, the sealing agent 50 is filled inside each opening 40. The sealant 50 is mainly composed of a silicone resin material, an acrylic resin material, or a rubber material. The sealant 50 is not particularly limited as long as it has adhesiveness to the moisture-proof film 30 and the take-out wiring 20. For example, the sealant 50 is a resin that is curable at room temperature, cured by ultraviolet rays, or thermosetting, and has moisture resistance. The sealant 50 is adhered to the solar cell element 10.
The distance L between each of the openings 40 and the element body 12 in the second direction Y is the same as the distance L in the solar cell module 1 described above. When the distance L is 2 mm or more, the interface peeling between the sealing agent 50 and the electrode 11 is less likely to occur, which is preferable.

Next, the manufacturing method of the solar cell module 1 described above will be described.
The method for manufacturing the solar cell module 1 according to the present embodiment includes a first sealing step, an opening forming step, and a wiring step.
First, in the first sealing step, the solar cell element 10 is sandwiched between the moisture-proof film 30 in the stacking direction Z and sealed. At this time, the peripheral edges of the four sides of the pair of rectangular moisture-proof films 30 are bonded to each other by the adhesive layer 31.
The electrode 11 can be provided at an arbitrary position of the solar cell element 10 before the first sealing step.

Next, in the opening forming step, the opening 40 is formed in the moisture-proof film 30 after the first sealing step. The opening 40 can be formed by using, for example, a cutting tool such as a utility knife or a laser cutter. At this time, the adhesive layer 31 is integrally cut together with the moisture-proof film 30. In the opening forming step, the opening 40 is formed so that the distance in the second direction Y between each of the openings 40 and the element main body 12 is 1 mm or more in a plan view. The opening forming step may be performed before the first sealing step. In this case, the first sealing step is performed with the opening 40 formed in the moisture-proof film 30.

Next, in the wiring step, after the opening forming step, the take-out wiring 20 is wired from the outside through the opening 40. At this time, the connecting portion 22 located at the tip of the take-out wiring 20 is connected to the connecting surface 11A of the electrode 11 by, for example, spot welding. The range of the connection surface 11A to which the connection portion 22 of the take-out wiring 20 is connected may be different from the portion that overlaps the opening 40 in a plan view, and is a portion that overlaps the adhesive layer 31 in a plan view. May be good.

When the solar cell module 2 is manufactured, a second sealing step is further provided.
In the second sealing step, after the wiring step, at least one of the openings 40 is sealed with the sealing agent 50. The sealant 50 is filled inside the opening 40. At this time, the sealing agent 50 is fixed to each of the take-out wiring 20, the moisture-proof film 30, the adhesive layer 31, and the electrode 11.

As described above, according to the solar cell module 1 and the method for manufacturing the solar cell module 1 according to the present embodiment, the moisture-proof film 30 is formed with an opening 40, and the take-out wiring 20 is passed through the opening 40 from the outside. It will be wired. Therefore, the take-out wiring 20 can be connected to an external device to take out the electric power from the solar cell element 10. In addition, since the solar cell element 10 includes an element body 12 adjacent to the electrode 11 and the distance L between each of the openings 40 and the element body 12 in the second direction Y is 1 mm or more, the element is connected to the element from the opening 40. The distance to the main body 12 can be secured. Therefore, it is possible to effectively prevent the intrusion of moisture from the outside into the element body 12 through the opening 40 and maintain the power generation characteristics. Further, peeling of the electrode 11 and the adhesive layer 31 can be suppressed.

By sealing the section region including the opening 40 with the sealing agent 50, the periphery of the take-out wiring 20 can be sealed reliably and inexpensively. In this way, it is possible to reliably prevent the intrusion of moisture from the outside.

The opening 40 in which the take-out wiring 20 is arranged is arranged on the side of the solar cell element 10 facing the light receiving portion 13. Therefore, when the surface of the solar cell module 1 opposite to the side facing the light receiving portion 13 is used as the external mounting surface, the take-out wiring 20 is not located on the mounting surface side, and the take-out wiring 20 is used. It is possible to easily connect to an external device.

Since the sealant 50 contains a silicone resin material, an acrylic resin material, or a rubber material as a main component and is filled in the opening 40, the sealant 50 can be easily provided with moisture resistance.
Further, the solar cell element 10 is a dye-sensitized solar cell element, an organic thin-film solar cell, or a solar cell element having a perovskite structure. Therefore, particularly in the solar cell element 10 whose power generation characteristics tend to deteriorate due to the intrusion of water, it is possible to effectively prevent the invasion of water from the outside and suppress the deterioration of the power generation characteristics.

(1st verification test)
Hereinafter, the first verification test of the present invention will be described.
In this verification test, the solar cell module 1 (distance L = 3.0 mm in FIG. 1) according to one embodiment as Example 1 is used as an electrode as shown in FIGS. 7 (a) and 7 (b) as Comparative Example 1. A solar cell module 5 having a structure in which a part of 11 is exposed to the outside and sandwiched between moisture-proof films 30 via an adhesive layer 31 is adopted. In the solar cell module 5, the electrode 11 also serves as the take-out wiring, and there is no opening.
As Comparative Example 2, a solar cell module having a distance L of 0.5 mm in FIG. 1 was adopted.
Then, the output maintenance rate of each of the solar cell modules according to Example 1 and Comparative Examples 1 and 2 in an environment of a temperature of 40 ° C. and a humidity of 90% RH was evaluated. The result is shown in FIG.

As shown in FIG. 8, it was confirmed that the output retention rate of Example 1 was about twice as large as that of Comparative Example 1 when 400 hours or more had passed. Further, it was confirmed that the output retention rate of Example 1 was about 1.8 times larger than the output retention rate of Comparative Example 2 after 450 hours had passed. That is, it is considered that the output maintenance rate of the solar cell element 10 could be secured by suppressing the invasion of water in the solar cell module 1 of the first embodiment.
From the above, it was confirmed that the solar cell module 1 of the present invention can effectively prevent the invasion of moisture from the outside and maintain the power generation characteristics.

(Second verification test)
Hereinafter, the second verification test of the present invention will be described.
In this verification test, the same solar cell module 1 as in Example 1 (distance L = 3.0 mm in FIG. 1) was carried out as Example 2, and the solar cell module 1 having a distance L of 10 mm in FIG. 1 was carried out as Example 3. As Example 4, the solar cell module 1 having a distance L of 20 mm in FIG. 1 was adopted, and as Comparative Example 3, the same solar cell module 5 as in Comparative Example 1 was adopted. Then, the output maintenance rate of each of the solar cell modules according to Examples 2 to 4 and Comparative Example 3 in an environment of a temperature of 60 ° C. and a humidity of 90% RH was evaluated. The result is shown in FIG.

As shown in FIG. 9, it was confirmed that the output retention rate of Examples 2 to 4 was larger than the output retention rate of Comparative Example 3 in a state where about 100 hours or more had passed. Further, it was confirmed that the longer the distance L between each of the openings 40 and the element main body 12 in the second direction Y, the longer the output retention rate of the solar cell element 10 can be secured.
From the above, it was confirmed that the longer the distance L between each of the openings 40 and the element main body 12 in the second direction Y is, the more effectively the invasion of moisture from the outside can be prevented and the power generation characteristics can be maintained. ..

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, the opening 40 is arranged on the side of the moisture-proof film 30 on which the light receiving portion 13 faces, but the present invention is not limited to this aspect. The opening 40 may be arranged on the side of the moisture-proof film 30 opposite to, for example, the light receiving portion 13.

Further, in the above embodiment, the sealing agent 50 has a structure in which the silicone resin material, the acrylic resin material, or the rubber material is the main component, but the present invention is not limited to such an embodiment. The sealing agent 50 may be a material other than the above-mentioned materials, and for example, a urethane resin, an epoxy resin, or the like may be adopted in consideration of workability, cost, and the like.
Further, the solar cell module does not have to include the sealing material 50.

Further, in the above embodiment, the solar cell element 10 has been shown to be a dye-sensitized solar cell element, an organic thin-film solar cell, or a solar cell element having a perovskite structure, but the configuration is limited to such an embodiment. I can't. The solar cell element 10 may have a configuration different from that described above.

Further, in the above embodiment, the opening 40 is arranged in the upper moisture-proof film 30A located on the side of the moisture-proof film 30 facing the light-receiving portion 13, but the present invention is limited to such an embodiment. Absent.
For example, as in the solar cell module 1B according to the modification shown in FIG. 10, even if the opening 40 is arranged in the lower moisture-proof film 30B located on the opposite side of the moisture-proof film 30 from the side facing the light receiving portion 13. Good.
In this case, since it is not necessary to widen the element body 12, the distance L can be longer than 20 mm. The maximum value of the distance L is, for example, one-fourth of the length of the solar cell element 10 in the second direction Y.

Further, in the above embodiment, the solar cell element 10 is formed in a rectangular shape in a plan view, but the shape of the solar cell element in a plan view is not limited to a rectangular shape.

In addition, it is possible to replace the components in the embodiment with well-known components as appropriate without departing from the spirit of the present invention, and the above-described modifications may be appropriately combined.

1, 1B, 2, 5 Solar cell module 10 Solar cell element 11 Electrode 12 Element body 13 Light receiving part 20 Take-out wiring 30 Moisture-proof film 40 Opening 50 Sealant

Claims (7)

A solar cell element including an element body and at least a pair of electrodes connected to the element body, a take-out wiring connected to each of the at least the pair of electrodes, and a moisture-proof film for sealing the solar cell element. It is a solar cell module that has
The moisture-proof film has an opening that exposes at least the pair of electrodes to the outside.
Each of the take-out wires is wired from the outside through the opening.
The at least pair of electrodes extend in the first direction in the plan view of the solar cell element.
A solar cell module in which the distance between each of the openings and the element body in the second direction orthogonal to the first direction in the plan view is 1 mm or more. The solar cell module according to claim 1, wherein at least one of the openings is sealed with a sealant. The solar cell element includes a light receiving unit and has a light receiving unit.
The solar cell module according to claim 1 or 2, wherein the opening is arranged on the side of the moisture-proof film facing the light receiving portion or on the opposite side. The solar cell module according to claim 2 or 3, wherein the sealing agent contains a silicone resin material, an acrylic resin material, or a rubber material as a main component and is filled in the opening. The solar cell module according to any one of claims 1 to 4, wherein the solar cell element is a dye-sensitized solar cell element, an organic thin-film solar cell, or a solar cell element having a perovskite structure. A method for manufacturing a solar cell module according to any one of claims 1 to 5.
The moisture-proof film of the solar cell element in which the solar cell element is sealed with a moisture-proof film has a distance of 1 mm or more in the second direction in the plan view between each of the openings and the element body. The opening forming step of forming the opening so as to be
A wiring process in which the take-out wiring is wired from the outside through the opening, respectively.
A method of manufacturing a solar cell module including. Further, a first sealing step of sealing the solar cell element with the moisture-proof film, and a second sealing step of sealing at least one of the openings with a sealing agent after the wiring step are performed. Prepare,
The method for manufacturing a solar cell module according to claim 6, wherein the solar cell element in which the solar cell element is sealed with a moisture-proof film is obtained through the first sealing step.

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