CN110892540A - Solar cell module and method for manufacturing solar cell module - Google Patents
Solar cell module and method for manufacturing solar cell module Download PDFInfo
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- CN110892540A CN110892540A CN201880046535.9A CN201880046535A CN110892540A CN 110892540 A CN110892540 A CN 110892540A CN 201880046535 A CN201880046535 A CN 201880046535A CN 110892540 A CN110892540 A CN 110892540A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/89—Terminals, e.g. bond pads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The present invention provides a solar cell module (1) which comprises: a solar cell element (10) comprising an element body (12) and at least one pair of electrodes (11) connected to the element body (12), lead-out wirings (20) connected to the at least one pair of electrodes (11), and a moisture-proof film (30) sealing the solar cell element (10), wherein the moisture-proof film has an opening (40), the opening (40) exposing the at least one pair of electrodes (11) to the outside, the lead-out wires (20) are wired from the outside through the openings (40), the electrode (11) extends in a first direction in a plan view of the solar cell element (10), and a distance (L) between each of the openings (40) and the element main body (12) in a second direction (Y) perpendicular to the first direction in the plan view is 1mm or more.
Description
Technical Field
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 29.9.2017, and the contents of which are incorporated herein by reference.
Background
Conventionally, as shown in patent documents 1 and 2 below, a solar cell module is known, which includes: the solar cell device includes a solar cell element having an electrode, lead-out wiring connected to the electrode, and a moisture-proof film sealing the solar cell element.
In the solar cell module, the periphery of the solar cell module is covered with a moisture-proof film in order to prevent deterioration of power generation characteristics due to permeation of moisture.
When the solar cell module is coated with the moisture-proof film in this manner, the electrode must be electrically connected to the outside of the moisture-proof film. Therefore, the lead-out wiring is sandwiched in the lamination direction by the moisture-proof film, and is connected to the electrode from the outside.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 5106876
Patent document 2: japanese patent No. 5510771
Disclosure of Invention
Technical problem to be solved by the invention
However, in the conventional solar cell module, moisture may enter the moisture-proof film through a boundary portion between the adhesive layer to which the moisture-proof film is adhered and the lead-out wiring, and the power generation characteristics may be deteriorated. Although various proposals have been made for materials and the like of the moisture-proof film itself in the patent document 1 and the patent document 2 and the following documents, the possibility of occurrence of the problem caused by the structural element has not been discussed.
The purpose of the present invention is to provide a solar cell module that can effectively prevent moisture from penetrating from the outside and that can maintain power generation characteristics.
Means for solving the problems
In order to solve the problems, the present invention proposes the following means.
The solar cell module of the present invention includes: the solar cell device includes a solar cell element including an element body and at least one pair of electrodes connected to the element body, lead-out wirings connected to the at least one pair of electrodes, and a moisture-proof film sealing the solar cell element, wherein the moisture-proof film includes an opening portion that exposes the at least one pair of electrodes to the outside, the lead-out wirings are wired from the outside through the opening portions, the electrodes extend in a first direction in a plan view of the solar cell element, and a distance between each of the opening portions and the element body in a second direction perpendicular to the first direction in the plan view is 1mm or more.
A method for manufacturing a solar cell module according to the present invention is a method for manufacturing a solar cell module, including: a first sealing step of sealing the solar cell element with the moisture-proof film; an opening forming step of forming the openings in the moisture-proof film such that a distance between each of the openings and the element main body in the second direction in the plan view is 1mm or more; and a wiring step of externally wiring the lead-out wirings through the openings, respectively.
According to the present invention, the moisture-proof film is provided with the opening, and the lead-out wiring is routed from the outside through the opening. Therefore, the lead-out wiring is connected to an external device, and power can be taken out from the solar cell element. In addition, since the distance between each opening and the element main body in the second direction is 1mm or more, the distance from each opening to the element main body can be secured. This effectively prevents moisture from permeating into the element body through the opening from the outside, and the power generation characteristics can be maintained. The distance between each opening and the element main body in the second direction is preferably 2mm or more, more preferably 3mm or more, and most preferably 5mm or more.
Further, at least one of the opening portions may be sealed with a sealant.
In this case, at least one of the openings is sealed with a sealant, for example, in a configuration in which the lead-out wiring is sandwiched between the moisture-proof films for the adhesive layer, and no boundary portion is formed between the adhesive layer and the lead-out wiring. Thus, the periphery of the lead-out wiring can be reliably and inexpensively sealed in the opening portion. This can reliably prevent moisture from penetrating from the outside.
The solar cell module may further include a light receiving portion, and the opening may be provided on a side of the moisture-proof film, which is opposite to or facing the light receiving portion.
For example, in the case where the opening portion provided with the lead-out wiring is provided on the side toward which the light receiving unit of the solar cell element faces, the lead-out wiring can be easily connected to an external device by using a plane on the side opposite to the side toward which the light receiving unit of the solar cell module faces as an external mounting surface so that the lead-out wiring is not located on the mounting surface side.
The sealing agent may be filled in the opening portion with a silicone resin material, an acrylic resin material, or a rubber material as a main component.
In this case, the sealing agent is a silicone resin material, an acrylic resin material, or a rubber material, and fills the opening portion, so that the sealing agent 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, particularly in a solar cell element in which the power generation characteristics are likely to be deteriorated due to the penetration of moisture, the penetration of moisture from the outside can be effectively prevented, and the deterioration of the power generation characteristics can be suppressed.
The method for manufacturing a solar cell module further includes: 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 sealant after the wiring step, wherein the solar cell element in which the solar cell element is sealed with a moisture-proof film is obtained by the first sealing step.
Effects of the invention
According to the present invention, it is possible to effectively prevent moisture from penetrating into the solar cell module from the outside, and thereby suppress a decrease in the power generation characteristics of the solar cell module.
Drawings
Fig. 1 is a plan view of a solar cell module according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a' in the solar cell module shown in fig. 1.
Fig. 3 is a sectional view taken along line B-B' in the solar cell module shown in fig. 1.
Fig. 4 is a plan view of a solar cell module according to another embodiment of the present invention.
Fig. 5 is a sectional view taken along line C-C' in the solar cell module shown in fig. 4.
Fig. 6 is a sectional view taken along line D-D' in the solar cell module shown in fig. 4.
Fig. 7 is a plan view (a) and a sectional view (b) taken along a line E-E' in (a) of a solar cell module of a comparative example.
Fig. 8 is a graph showing the results of the first verification test.
Fig. 9 is a graph showing the results of the second verification test.
Fig. 10 is a view showing a modification of the solar cell module shown in fig. 2.
Detailed Description
(embodiment mode)
The technical scope of the present invention is not limited to the following embodiments, and various changes may be made without departing from the gist of the present invention.
Hereinafter, a solar cell module 1 according to an embodiment of the present invention will be described with reference to the drawings.
As shown in fig. 1, the solar cell module 1 includes: the solar cell device includes a solar cell element 10 having at least a pair of electrodes 11, lead-out wirings 20 connected to the electrodes 11, respectively, and a moisture-proof film 30 sealing the solar cell element 10. The solar cell element 10 is formed in a rectangular shape in a plan view, and the electrode 11 extends in a short side direction of the solar cell element 10 in the plan view.
In this specification, the electrode 11 is different from a counter electrode and a conductive film (transparent electrode) having conductivity, which will be described below. Examples of the electrode 11 include: a terminal electrode made of metal, and a terminal lead-out electrode made of a metal band such as copper or aluminum.
As shown in fig. 2, the moisture-proof films 30 are provided in a pair 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 provides barrier properties to the 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, a direction in which the solar cell element 10 is sandwiched between the moisture-proof films 30 from both sides (for example, a vertical direction in a case where the solar cell element 10 is sandwiched between a pair of the moisture-proof films 30 from above and below) is referred to as a stacking direction Z. In addition, when viewed from the stacking direction Z in plan, the short-side direction extending along the electrodes 11 is referred to as a first direction X, and the direction perpendicular to the first direction X (the long-side direction) is referred to as a second direction Y.
In the solar cell element 10, the length in the first direction X may be longer than the length in the second direction Y, and the length in the first direction X may be the same as the length in the second direction Y. 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 and a short-side direction of the solar cell element 10. The electrode 11 may extend in a direction perpendicular to the direction in which the sides of the solar cell element 10 extend, or may extend in any direction.
Between the pair of moisture-proof films 30 in the lamination direction Z, an adhesive layer 31 is interposed. The adhesive layer 31 tightly adheres the pair of moisture-proof films 30 and the solar cell element 10 to each other.
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 water vapor transmission rate of 8X 10 at a temperature of 40 ℃ and a relative humidity of 90% can be used-3[g/m2/day]The following films. The water vapor transmission rate is preferably 3X 10-3Hereinafter, more preferably 5 × 10-4The following.
Specific structures such as the material and thickness of the moisture-proof film are not particularly limited, and for example, those described in japanese patent application laid-open nos. 2015-027791, 2014-043527, 2011-077425, and the like can be used.
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 cell 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 plan view.
The dimension of the electrode 11 in the first direction X is smaller than the dimension in the second direction Y. A pair of electrodes 11 is provided at positions sandwiching the element main body 12 in the second direction Y. In other words, the electrodes 11 are provided at both end portions of the element main body 12 in the second direction Y. The element main body 12 does not protrude beyond the electrode 11 on the outer side in the second direction Y.
As shown in fig. 2, the pair of electrodes 11 is provided on one side of the element body 12 in the stacking direction Z (i.e., one of the upper side and the lower side of the element body 12 when both surfaces of the element body 12 are placed facing up and down). The number of electrodes 11 and the positional relationship between the electrodes 11 and the element main body 12 are not limited to this embodiment, and may be arbitrarily changed.
The element body 12 includes a plurality of dye-sensitized solar cell units (hereinafter, simply referred to as cells) each including a light receiving portion (photoelectrode) 13 and a counter electrode (not shown) provided in the lamination direction Z so that the light receiving portion 13 faces each other via a conductive material having a sealing function. The plurality of cells are provided at intervals in both the first direction X and the second direction Y. The plurality of cells are sandwiched between a pair of substrates (not shown) provided at intervals in the stacking direction Z.
Conductive films (not shown) having conductivity are formed on the inner surfaces of the pair of substrates, respectively. The element body 12 is schematically configured by electrically connecting a semiconductor layer (not shown) of the light receiving section 13 and a catalyst layer (not shown) of the counter electrode to a conductive film. The light receiving portion 13 faces one of the stacking directions Z.
In the present embodiment, as shown in fig. 1 and 2, the upper moisture-proof film 30A of the moisture-proof film 30 has an opening 40 for exposing 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 opening 40 in the first direction X is larger than the size in the second direction Y. That is, the opening 40 has a rectangular shape elongated in the first direction X. The rectangular shape is formed by four sides. Of the four sides, the side having a length 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 provided in the upper moisture-proof film 30A at a position overlapping the electrode 11 in a plan view. The opening 40 is provided at an 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 provided on the moisture-proof film 30 so that the light-receiving section 13 of the solar cell element 10 faces the side. Therefore, in a state before sealing with the below-described sealing agent 50, the connection surface 11A of the electrode 11 on the side toward which the light receiving portion 13 faces is exposed to the outside through the opening 40.
In the present embodiment, lead-out wire 20 is routed from the outside through opening 40. The lead-out wiring 20 has a covering portion 21. A connection portion 22 with the coating portion 21 peeled off is formed at the tip of the lead-out wiring 20. In the illustrated example, the connection portion 22 of the lead wire 20 is provided inside the opening 40 together with the covering portion 21. The connection portion 22 is connected to the connection face 11A of the electrode 11. Thereby, the lead-out wiring 20 and the electrode 11 are electrically connected to each other.
In the present embodiment, the distance L in the second direction Y between each opening 40 and the element main body 12 is 1mm or more. The distance L in the second direction Y between each opening 40 and the element main body 12 is preferably 2mm or more, more preferably 3mm or more, and most preferably 5mm or more. From the viewpoint of expanding the element main body 12, the upper limit of the distance L is preferably 20mm or less. That is, the distance L is preferably 1mm to 20mm, more preferably 2mm to 20mm, still more preferably 3mm to 20mm, and most preferably 5mm to 20 mm.
The distance L may be defined, for example, as follows. First, of the pair of sides having the length 40a of the opening 40, the side located inside the solar cell element 10 along the second direction Y is defined as a first side. A distance from the first edge to the boundary portion of the electrode 11 and the element body 12 toward the inside in the second direction Y is defined as a distance L1. On the other hand, a distance from a side having a length of 40a (hereinafter, also referred to as a second side) opposite to the first side to the outer edge portion of the solar cell element 10 is defined as a distance L2. The distance L is the shorter of the distance L1 and the distance L2. The distance L1 is set to the distance L when the distance L1 and the distance L2 are the same.
In this embodiment, distance L1 is the same as distance L2, and distance L is equal to distance L1. In addition, distance L is also equal to distance L2.
In the present embodiment, the first side of the opening 40 is parallel to the boundary portion, and therefore the distance L is the same over the entire length of the first side of the opening 40. In other words, the distance L is 1mm 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. The opening 40 may have a shape other than a rectangle (an oval shape, a polygon having more than five sides than a quadrangle, or the like). In this case, the distance L represents the shortest distance between each opening 40 and the outer edge portion of the element main body 12 (the boundary portion between the electrode 11 and the element main body 12 or the outer edge portion of the solar cell element 10).
The distance L can be adjusted by the length (length in the first direction X) and width (length in 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, a solar cell module 2 according to another embodiment of the present invention will be described.
In the present embodiment, at least one of the openings 40 is sealed with the sealant 50. As shown in fig. 4 to 6, in the solar cell module 2, the sealing agent 50 is filled inside each opening 40. The sealant 50 mainly contains 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 lead-out wiring 20. For example, the sealant 50 is a room temperature curing, ultraviolet curing, or thermosetting resin, and has moisture resistance. The sealant 50 is adhered to the solar cell element 10.
The distance L in the second direction Y between each opening 40 and the element body 12 is the same as the distance L in the solar cell module 1. When the distance L is 2mm or more, interfacial separation between the sealant 50 and the electrode 11 is less likely to occur, and therefore, this is preferable.
Next, a method for manufacturing the solar cell module 1 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 sealed by sandwiching the moisture-proof film 30 in the lamination direction Z. 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 may be provided at any position of the solar cell element 10 before the first sealing step.
Then, in the opening forming step, the opening 40 is formed in the moisture-proof film 30 after the first sealing step. For example, a blade such as a dicing blade or a laser cutter may be used to form the opening 40. At this time, the adhesive layer 31 is cut out together with the moisture-proof film 30. In the opening forming step, the openings 40 are formed such that the distance between each opening 40 and the element main body 12 in the second direction Y in a plan view is 1mm or more. The opening forming step may be performed before the first sealing step. In this case, the first sealing step is performed in a state where the opening 40 is formed in the moisture-proof film 30.
In the wiring step, after the opening forming step, the lead-out wiring 20 is externally wired through the opening 40. At this time, the connection portion 22 located at the tip of the lead-out wire 20 is connected to the connection surface 11A of the electrode 11 by spot welding or the like, for example. In connection surface 11A, the range in which connection portion 22 of lead-out wiring 20 is connected may be different from the portion overlapping opening 40 in a plan view, and may be the portion overlapping adhesive layer 31 in a plan view.
The manufacturing process of the solar cell module 2 further includes a second sealing step.
In the second sealing step, at least one of the openings 40 is sealed with the sealant 50 after the wiring step. The sealing agent 50 is filled inside the opening 40. At this time, the sealant 50 is tightly adhered to the lead-out wiring 20, the moisture-proof film 30, the adhesive layer 31, and the electrode 11, respectively.
As described above, according to the solar cell module 1 and the method of manufacturing the solar cell module 1 of the present embodiment, the opening 40 is formed in the moisture-proof film 30, and the lead-out wiring 20 is routed from the outside 40 through the opening. Therefore, the lead-out wiring 20 is connected to an external device, and electric power can be led out from the solar cell element 10. In addition, since the solar cell element 10 has the element main body 12 adjacent to the electrode 11 and the distance L in the second direction Y between each opening 40 and the element main body 12 is 1mm or more, the distance from the opening 40 to the element main body 12 can be secured. Therefore, it is possible to effectively prevent moisture from penetrating from the outside into the element main body 12 through the opening 40, and to maintain the power generation characteristics. In addition, peeling between the electrode 11 and the adhesive layer 31 can be suppressed.
The region defined by the opening 40 is sealed with a sealant 50, and the periphery of the lead-out wiring 20 can be reliably sealed at low cost. This can reliably prevent moisture from penetrating from the outside.
The opening 40 provided with the lead-out wire 20 is provided on the side of the solar cell element 10 facing the light receiving unit 13. Therefore, when the surface opposite to the side toward which the light receiving unit 13 of the solar cell module 1 faces is used as an external mounting surface, the lead-out wiring 20 is not located on the mounting surface side, and therefore the lead-out wiring 20 can be easily connected to an external device.
The sealant 50 mainly contains a silicone resin material, an acrylic resin material, or a rubber material as a main component, and is filled in the opening portion 40, and therefore the sealant 50 can be easily provided with moisture resistance.
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 in which the power generation characteristics are likely to be degraded by the penetration of moisture, the penetration of moisture from the outside can be effectively prevented, and the degradation of the power generation characteristics can be suppressed.
Examples
(first verification test)
Hereinafter, a first verification test of the present invention will be explained.
In this verification test, a solar cell module 1 according to one embodiment (the distance L in fig. 1 is 3.0mm) was used as example 1, and a solar cell module 5 having the following configuration shown in fig. 7(a) and (b) was used as comparative example 1: the electrode 11 is partially exposed to the outside and sandwiched between the moisture-proof films 30 via the adhesive layer 31. In the solar cell module 5, the electrode 11 also has lead-out wiring, and no opening is present.
As comparative example 2, a solar cell module having a distance L of 0.5mm in FIG. 1 was used.
The solar cell modules of example 1 and comparative examples 1 and 2 were evaluated for output maintenance ratios in an environment in which the air temperature was 40 ℃ and the humidity was 90% RH. The results are shown in FIG. 8.
As shown in fig. 8, it was confirmed that the output maintenance ratio of example 1 was large and about twice as large as that of comparative example 1 in the state where 400 hours or more had elapsed. In addition, it was confirmed that the output maintenance ratio of example 1 was large and about 1.8 times the output maintenance ratio of comparative example 2 in the state where 450 hours had elapsed. This is presumably because the solar cell module 1 of example 1 can secure the output maintenance ratio of the solar cell element 10 by suppressing the penetration of moisture.
As described above, according to the solar cell module 1 of the present invention, it is possible to effectively prevent moisture from penetrating from the outside and maintain the power generation characteristics.
(second verification test)
The second verification test of the present invention is explained below.
In this verification test, the same solar cell module 1 as in example 1 was used as example 2 (the distance L in fig. 1 was 3.0mm), the solar cell module 1 having the distance L in fig. 1 of 10mm was used as example 3, the solar cell module 1 having the distance L in fig. 1 of 20mm was used as example 4, and the solar cell module 5 as in comparative example 1 was used as comparative example 3. Next, the solar cell modules of examples 2 to 4 and comparative example 3 were evaluated for output maintenance rates in an environment in which the air temperature was 60 ℃ and the humidity was 90% RH. The results are shown in FIG. 9.
As shown in fig. 9, it was confirmed that the output maintenance ratios of examples 2 to 4 were larger than that of comparative example 3 in the state where about 100 hours or more had elapsed. Further, it was confirmed that the output maintenance ratio of the solar cell element 10 can be ensured when the distance L in the second direction Y between each opening 40 and the element body 12 is long.
As is apparent from the above, if the distance L in the second direction Y between each opening 40 and the element main body 12 is long, it is possible to effectively prevent moisture from penetrating from the outside and maintain the power generation characteristics.
The technical scope of the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.
For example, although the above embodiment shows the configuration in which the opening 40 is provided on the side of the moisture-proof film 30 toward which the light-receiving section 13 faces, the present invention is not limited to this configuration. The opening 40 may be provided on the opposite side of the moisture-proof film 30 from the light-receiving section 13.
In the above embodiment, the sealant 50 has a structure mainly containing a silicone resin material, an acrylic resin material, or a rubber material, but is not limited to this embodiment. The sealant 50 may be a material other than the above-described materials, and for example, a urethane resin, an epoxy resin, or the like may be used in consideration of processability, cost, or the like.
In addition, the solar cell module may not include the sealing material 50.
In the above embodiment, 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, but is not limited to this embodiment. The solar cell element 10 may have a different configuration from the above-described configuration.
In the above embodiment, the opening 40 is provided in the upper moisture-proof film 30A of the moisture-proof film 30 located on the side facing the light-receiving unit 13, but the present invention is not limited to this embodiment.
For example, as shown in a solar cell module 1B of a modification shown in fig. 10, the opening portion 40 may be provided in the lower moisture-proof film 30B, the lower moisture-proof film 30B being located on the side opposite to the side toward which the light-receiving portion 13 faces in the moisture-proof film 30.
In this case, it is not necessary to enlarge the element main body 12, and therefore the distance L may be larger than 20 mm. As the maximum value of the distance L, for example, a length of one quarter of the length of the solar cell element 10 in the second direction Y may be cited.
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.
Note that known components may be used in place of the components in the embodiment without departing from the spirit of the present invention, and the modifications may be combined as appropriate.
Description of the symbols
1. 1B, 2, 5 solar cell module
10 solar cell element
11 electrode
12 element body
13 light receiving part
20 lead-out wiring
30 moisture-proof film
40 opening part
50 sealant
Claims (7)
1. A solar cell module, comprising:
a solar cell element including an element body and at least one pair of electrodes connected to the element body, lead-out wirings connected to the at least one pair of electrodes, and a moisture-proof film sealing the solar cell element,
the moisture-proof film has openings that expose the at least one pair of electrodes to the outside,
the lead-out wirings are externally wired through the openings,
the at least one pair of electrodes extends in a first direction in a top view of the solar cell element,
a distance between each of the opening portions and the element main body in a second direction perpendicular to the first direction in the plan view is 1mm or more.
2. The solar cell module of claim 1,
at least one of the openings is sealed with a sealant.
3. The solar cell module according to claim 1 or 2,
the solar cell element is provided with a light receiving part,
the opening is provided on a side of the moisture-proof film that faces the light-receiving section or on an opposite side of the moisture-proof film.
4. The solar cell module according to claim 2 or 3,
the sealant contains a silicone resin material, an acrylic resin material, or a rubber material as a main component, and fills the opening.
5. The solar cell module according to any one of claims 1 to 4,
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.
6. A method for manufacturing a solar cell module according to any one of claims 1 to 5, comprising:
an opening forming step of forming the openings in the moisture-proof film of the solar cell element in which the solar cell element is sealed by the moisture-proof film such that a distance between each of the openings and the element main body in the second direction in the plan view is 1mm or more; and
and a wiring step of externally wiring the lead-out wirings through the openings, respectively.
7. The method of manufacturing a solar cell module according to claim 6, further comprising:
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 sealant after the wiring step,
the solar cell element in which the solar cell element is sealed with a moisture-proof film is obtained by the first sealing step.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017190438 | 2017-09-29 | ||
| JP2017-190438 | 2017-09-29 | ||
| PCT/JP2018/034738 WO2019065430A1 (en) | 2017-09-29 | 2018-09-20 | Solar cell module, and method of manufacturing solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110892540A true CN110892540A (en) | 2020-03-17 |
Family
ID=65903602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880046535.9A Pending CN110892540A (en) | 2017-09-29 | 2018-09-20 | Solar cell module and method for manufacturing solar cell module |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPWO2019065430A1 (en) |
| KR (1) | KR20200052870A (en) |
| CN (1) | CN110892540A (en) |
| WO (1) | WO2019065430A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024051878A (en) * | 2022-09-30 | 2024-04-11 | パナソニックホールディングス株式会社 | Solar cell module and method for manufacturing the solar cell module |
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| JPH07231015A (en) * | 1994-02-17 | 1995-08-29 | Sanyo Electric Co Ltd | Semiconductor device and its manufacture |
| WO2012117891A1 (en) * | 2011-02-28 | 2012-09-07 | 三洋電機株式会社 | Output wire for solar cell modules, solar cell module, and method for manufacturing same |
| WO2013014723A1 (en) * | 2011-07-22 | 2013-01-31 | 三洋電機株式会社 | Solar cell module and method for producing same |
| CN103262337A (en) * | 2011-03-02 | 2013-08-21 | 株式会社藤仓 | Dye-sensitized solar cell module |
| US20130248914A1 (en) * | 2012-03-20 | 2013-09-26 | General Electric Company | Packaged optoelectronic device and process for manufacturing |
| JP2014043527A (en) * | 2012-08-28 | 2014-03-13 | Kyushu Univ | Resin composition and moisture-proof film |
| JP2017038052A (en) * | 2015-08-06 | 2017-02-16 | アルモア | Method for connecting flexible electronic device to electric wiring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516876B1 (en) | 1970-09-04 | 1976-03-02 | ||
| US3878042A (en) | 1973-09-12 | 1975-04-15 | Gen Electric | Spring and stop assembly for nuclear fuel bundle |
-
2018
- 2018-09-20 KR KR1020207000963A patent/KR20200052870A/en not_active Application Discontinuation
- 2018-09-20 JP JP2019545018A patent/JPWO2019065430A1/en active Pending
- 2018-09-20 CN CN201880046535.9A patent/CN110892540A/en active Pending
- 2018-09-20 WO PCT/JP2018/034738 patent/WO2019065430A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07231015A (en) * | 1994-02-17 | 1995-08-29 | Sanyo Electric Co Ltd | Semiconductor device and its manufacture |
| WO2012117891A1 (en) * | 2011-02-28 | 2012-09-07 | 三洋電機株式会社 | Output wire for solar cell modules, solar cell module, and method for manufacturing same |
| CN103262337A (en) * | 2011-03-02 | 2013-08-21 | 株式会社藤仓 | Dye-sensitized solar cell module |
| WO2013014723A1 (en) * | 2011-07-22 | 2013-01-31 | 三洋電機株式会社 | Solar cell module and method for producing same |
| US20130248914A1 (en) * | 2012-03-20 | 2013-09-26 | General Electric Company | Packaged optoelectronic device and process for manufacturing |
| JP2014043527A (en) * | 2012-08-28 | 2014-03-13 | Kyushu Univ | Resin composition and moisture-proof film |
| JP2017038052A (en) * | 2015-08-06 | 2017-02-16 | アルモア | Method for connecting flexible electronic device to electric wiring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2019065430A1 (en) | 2020-10-22 |
| KR20200052870A (en) | 2020-05-15 |
| WO2019065430A1 (en) | 2019-04-04 |
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