JP2002151724A - Solar cell panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell panel which is capable of surely protecting a solar cell module against cracking while being used even if a support structure of resin is used. SOLUTION: A solar cell panel is composed of a solar cell module, a resin support structure, and a high-molecular compound layer interposed between them. The solar cell panel is so set as to satisfy a formula, E×L(α-20)×10-6×170/1.5×105×d<10-3 in a temperature range of -40 to 130 deg.C, where E denotes the longitudinal modulus (MPa) of the high-molecular compound layer, L (mm) denotes the length of the solar cell module, d (mm) is the thickness of the high-molecular compound layer, and αdenotes the linear expansion coefficient (×10-6/ deg.C) of the resin support structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell panel, and more particularly, to a resin-made solar cell panel that can be formed to conform to the shape of a surrounding structure.

[0002]

2. Description of the Related Art A solar cell composed of a thin film semiconductor represented by amorphous silicon (a-Si) or the like can be manufactured on a resin film substrate which is easily curved. By utilizing the features of this film-type solar cell module, a curved solar cell panel can be manufactured and can be incorporated into a structure having a curved surface without impairing its appearance.

However, since a resin film used as a base material of a thin-film solar cell is required not to be deformed at a manufacturing temperature of a thin-film semiconductor film, a resin film having a high decomposition temperature such as polyimide is generally applied. Therefore, after the production of the film type solar cell module,
It is not possible to shape the shape by means such as thermoforming process,
Means such as pasting to a support structure formed in advance into a curved surface is used.

Glass, steel plate, resin, and the like are used for the support structure of the solar cell panel. In particular, resin can be easily formed into an arbitrary shape, is excellent in mass productivity, and has a higher productivity than other materials. This is suitable because a light-weight curved solar cell panel having a small specific gravity and light weight can be obtained.

[0005] A conventional curved solar cell panel is disclosed in, for example, Japanese Patent Application Laid-Open No. 5-90625 (FIGS. 9 and 10).
Are disclosed. FIG. 9 is a schematic view of a solar cell panel 101, 102 is a film type solar cell module, and 103 is a resin support structure. As shown in FIG. 10, this solar cell panel has a cross-sectional structure in which a solar cell module 102 is attached on a resin support structure 103 via an adhesive layer 104. In the solar cell module 102, a thin film semiconductor layer 107 is laminated on a light-transmitting base film 105 via a fusion prevention layer 106, and absorbs light incident from the base film 105 to generate power. With the above configuration, stress during manufacturing can be reduced.

Japanese Unexamined Patent Publication No. 7-226529 discloses a solar cell panel having the structure shown in FIG. In FIG. 11, reference numeral 201 denotes a support structure made of a synthetic resin such as ABS or AAS;
Reference numeral 3 denotes a support structure made of a transparent synthetic resin such as polycarbonate and polymethyl methacrylate.
03 to absorb the incident light to generate power.

[0007] A solar cell panel using such a resin as a support was lighter in weight and relatively superior in productivity as compared with a case using glass or the like.

[0008]

However, such a resin solar cell panel has the following problems.

That is, when a solar cell panel as a product is used outdoors, a resin supporting structure constituting the panel expands or contracts due to a change in external temperature or heat due to sunlight or the like. In general, the coefficient of linear expansion of a resin is larger than that of glass or a thin film semiconductor layer that is a main component of a solar cell. Therefore, in a conventional configuration, a solar cell module receives a large stress due to expansion and contraction of a resin support structure. Will be. As a result, there is a problem that the solar cell module is cracked and the power generation efficiency is reduced.

The present invention has been made in view of the above problems, and has been made in consideration of the above problem. In a solar cell panel which is formed so as to conform to the shape of a surrounding structure and can be installed without impairing the external shape, a resin is added to a support structure. It is an object of the present invention to provide a lightweight and durable solar cell panel which does not cause cracks in the solar cell module during use even when using.

[0011]

Means for Solving the Problems The present invention has been completed by focusing on the point that cracks can be suppressed by interposing a layer made of a polymer compound between a solar cell module and a resin support structure. It is a thing. That is, the present invention for achieving the above object is configured as follows for each claim.

The invention according to claim 1 is a solar cell panel in which a layer made of a polymer compound is provided between a solar cell module and a resin support structure, wherein the following formula (1):

[0013]

(Equation 2)

(Where E is the longitudinal modulus (MPa) of the layer made of the polymer compound, L is the length (mm) of the solar cell module, and d is the layer made of the polymer compound. Is the thickness (mm), and α is the linear expansion coefficient (× 10 ⁻⁶ / ° C.) of the resin-made support structure.
A solar cell panel characterized by being established in a range of 0 ° C.

The invention according to claim 2 is the solar cell panel according to claim 1, wherein the polymer compound is a rubber-modified thermoplastic resin.

The invention according to claim 3 is the solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic elastomer.

The invention according to claim 4 is the solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic resin to which a plasticizer is added.

The invention according to claim 5 is the solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic foamed resin.

The invention according to claim 6 is the solar cell panel according to claim 1, wherein the polymer compound is a synthetic rubber having a molecular weight between crosslinks of 500 or more.

According to a seventh aspect of the present invention, the Vicat softening temperature of the polymer compound is lower than the Vicat softening temperature of the resin support structure.
It is a solar cell panel as described in any one of the above.

The invention according to claim 8 is characterized in that the resin support structure and the layer made of the polymer compound are provided on both sides of the solar cell module, and the area of the solar cell module is made of the resin. The solar cell panel according to any one of claims 1 to 7, wherein the area is smaller than an area of the support structure.

According to a ninth aspect of the present invention, the two resin supporting structures provided on both sides of the solar cell module are connected via partially provided connecting portions. The solar cell panel according to claim 8, wherein:

[0023]

According to the present invention configured as described above, the following effects can be obtained for each claim.

According to the first aspect of the present invention, various requirements for the layer made of the polymer compound and the solar cell module are defined so as to satisfy the formula (1).
The generation of cracks due to expansion and contraction of the resin-made support structure, which has conventionally been a problem in resin-made solar cell panels, can be suppressed, and a decrease in power generation efficiency due to the cracks can be prevented.

According to the invention as set forth in claims 2 to 6, the layer comprising a high molecular compound is a rubber-modified thermoplastic resin,
Thermoplastic elastomer, thermoplastic resin with added plasticizer, thermoplastic foamed resin, or molecular weight between crosslinks of 500
By using the above synthetic rubber, a solar cell panel excellent in various performances such as easiness of molding, cost, durability, and adhesion to a resin support structure can be obtained.

According to the seventh aspect of the invention, by setting the Vicat softening temperature of the polymer compound to be lower than the Vicat softening temperature of the resin support structure, various molding methods can be used, and the durability can be improved. A solar cell panel having excellent properties can be obtained.

According to the eighth aspect of the present invention, since the area of the solar cell module is made smaller than the area of the resin support structure, there is no need to dispose the solar cell module in unnecessary portions, thereby manufacturing the solar cell module. Costs can be reduced. When two or more solar cell modules are arranged in a solar cell panel, solar cell modules having different characteristics can be mixed in one solar cell panel, and a plurality of solar cell modules are connected in series in the same panel. Alternatively, since they can be connected and arranged in parallel, the generated voltage and generated current of the solar cell panel can be suitably adjusted.

According to the ninth aspect of the present invention, the solar cell module has a structure in which two resin supporting structures provided on both surfaces of the solar cell module are partially connected via a connecting portion. The rigidity of the battery panel and the integration between the resin support structure and the solar cell module are improved.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and functions of the present invention will be described below in detail.

FIG. 1 shows a basic structure of a solar cell panel 1 according to the present invention, in which a solar cell module 2 and a resin support structure 3 are provided.
And a layer 4 made of a high molecular compound is provided between them. The solar cell panel of the present invention is a solar cell panel having the configuration of FIG. 1 and has the following formula (1):

[0031]

(Equation 3)

(Where E is the longitudinal modulus (MPa) of the layer made of the polymer compound, L is the length (mm) of the solar cell module, and d is the layer made of the polymer compound. Is the thickness (mm), and α is the linear expansion coefficient (× 10 ⁻⁶ / ° C.) of the resin-made support structure.
A solar cell panel characterized by being established in a range of 0 ° C. Although the present invention can provide particularly excellent effects when applied to a curved solar cell panel, the figure shows a planar solar cell panel for explanation.

In the formula (1), the longitudinal elastic modulus E is a coefficient possessed by an elastic body also called a Young's modulus, and the longitudinal elastic modulus E can be measured in accordance with ISO R527 (1993). And the thickness d refers to the average thickness of the layer made of the polymer compound. L refers to the length of the solar cell module. When the solar cell module is a square, the length of one side of the square is used. When the solar cell module is a rectangle, the length of the long side is used. Means the length of the longest part. α is the coefficient of linear expansion of the resin support structure (× 1
0 ^-6 / ° C), JIS K7197 (1991)
Can be measured in accordance with

The longitudinal modulus E is too large, the length L of the solar cell module is too long, the thickness d is too thin, and / or
Alternatively, when the above-mentioned formula (1) is not satisfied because the linear expansion coefficient α of the resin-made support structure is too large, the flexibility of the layer made of the polymer compound becomes insufficient, and The solar cell module may be cracked by the applied stress. Further, although the longitudinal elastic modulus is affected by the temperature, if the temperature range in which the above expression (1) is satisfied is narrow, it may not be possible to cope with a temperature change when used outdoors. Therefore, it is preferable that the above equation (1) is satisfied in a temperature range of -40 to 130 ° C. in order to make the resistance to the temperature change sufficient. The numerical range of each of the longitudinal elastic modulus E and the thickness d is not particularly limited, but is made of a polymer compound from the viewpoint of light transmission, thinning of the solar cell panel, lightening of the solar cell panel, ease of molding, and the like. The layer thickness d is 5 m
m or less, and more preferably 2 mm or less.

The solar cell panel of the present invention that satisfies the above requirements can be easily formed so as to conform to the shape of the surrounding structure because it uses a resin support structure. It is possible to suppress the occurrence of cracks due to expansion and contraction of the resin support structure, which has been a problem in the above, and to prevent a decrease in power generation efficiency due to the cracks.

In the present invention, the term "solar cell module" refers to a unit composed of one or a plurality of solar cells connected in series or in parallel. As a solar cell, amorphous Si or CuInSe _{2 is formed} on a resin film such as polyimide or a metal thin film such as stainless steel foil.
And the like. However, the present invention is not limited to these.

The composition of the resin support structure is not particularly limited, and various resins can be used as appropriate. However, in view of productivity and adaptability to various methods, it is preferable that the resin support structure is made of a thermoplastic resin. As shown in FIG. 2, when the resin supporting structures 3 and 3 ′ are laminated with the layers 4 and 4 ′ made of a polymer compound interposed on both surfaces of the solar cell module 2, the resin supporting structure is used. The bodies 3 and 3 ′ may have the same composition or may have different compositions. However, at least the resin support structure laminated on the light receiving surface side of the solar cell module 2 is made of a transparent resin in order to secure a light transmission amount. Preferably, Examples of the transparent and thermoplastic resin include acrylic resin represented by polymethyl methacrylate, polycarbonate, fluorine resin, silicone resin and the like.

By including a reinforcing material such as glass fiber or mica in the resin support structure, the panel strength can be improved.

The composition of the layer composed of the polymer compound is not particularly limited as long as the above-mentioned formula (1) is satisfied. However, from the viewpoint of ease of molding, cost, durability, adhesion to a resin support structure, etc. The polymer compound is a rubber-modified thermoplastic resin, a thermoplastic elastomer, a thermoplastic resin to which a plasticizer is added, a thermoplastic foamed resin, or a resin having a molecular weight between crosslinks of 50.
It is preferably a synthetic rubber having 0 or more. As shown in FIG. 2, when the resin supporting structures 3 and 3 ′ are stacked on both sides of the solar cell module 2 with layers 4 and 4 ′ made of a polymer compound interposed therebetween, The layers 4 and 4 ′ may have the same composition or, of course, may be different.

The rubber-modified thermoplastic resin is a resin having rubber elasticity and free from micro-Brownian motion. Specifically, a polymer of polymethyl methacrylate and acrylates or silicone, vinylidene fluoride And poly (ethylene propylene rubber) in polystyrene, and a polymer in which ethylene propylene rubber and the like are dispersed in syndiotactic polypropylene.

The thermoplastic elastomer is a polymer material having rubber-like elasticity at room temperature, which is not a partially crosslinked product or a covalent bond but a physical bond (microcrystal, ionic bond,
(Hydrogen bond) and refers to an elastic body, and specific examples thereof include various thermoplastic elastomers of styrene type, olefin type, urethane type and polyester type.

The thermoplastic resin to which a plasticizer has been added refers to a resin whose glass transition point has been lowered by the addition of a plasticizer.
Specific examples of the thermoplastic resin include polyvinyl chloride, polyvinylidene chloride, and the like, and specific examples of the added plasticizer are preferably bleed and less volatile.
Examples thereof include phthalate esters, trimellitate esters, and polyesters.

The thermoplastic foamed resin refers to a thermoplastic resin that forms air bubbles in a material and retains various properties such as light weight, heat insulation, and elasticity. Specifically, a polyvinyl chloride resin,
A flexible foam obtained by blending a foaming agent such as a diazo-based resin with a polyethylene-based resin, a polypropylene-based resin, or the like and foaming the mixture is used. The foamed structure may be a closed cell or an open cell, and may be appropriately selected.

Examples of the synthetic rubber having a molecular weight between crosslinks of 500 or more include ethylene propylene rubber, acrylonitrile butadiene rubber, butyl rubber, chlorosulfonated polyethylene, acrylic rubber, fluorine rubber, silicone rubber and the like. If the molecular weight between crosslinks is less than 500, the fluidity is high and the structure may not be retained.

Further, rubber-modified thermoplastic resin, thermoplastic elastomer, thermoplastic resin to which a plasticizer is added, or thermoplastic foamed resin are JIS K7206 (1992).
(1 year) is preferably lower than the Vicat softening temperature of the resinous support structure used. This is because the molding method is limited when the Vicat softening temperature of the polymer compound constituting the layer is equal to or higher than the Vicat softening temperature of the resin support structure. For example, when the Vicat softening temperature of the polymer compound is equal to or higher than the Vicat softening temperature of the resin support structure, when the resin support structure and the layer made of the polymer compound are heated and molded together,
Stress due to molding shrinkage of the resin support structure remains in the layer made of the polymer compound, and the desired stress relaxation performance,
That is, durability may not be obtained.

An adhesive can be used to improve the adhesiveness between the layers. As the adhesive, a two-part adhesive can be used, and specific examples thereof include epoxy / amine, amide thiol-based, and urethane-based polyisocyanate / polyol.

FIG. 3 shows another embodiment of the solar cell panel according to the present invention.

In the solar cell panel shown in FIG. 3, layers 4 and 4 ′ made of a polymer compound are provided on both sides of a solar cell module 2.
And resin support structures 3 and 3 ′ are provided, and the area of the solar cell module is smaller than the area of the resin support structure. The area of the solar cell module and the area of the resin support structure refer to the area of the surface on which the layer made of the polymer compound and the resin support structure are stacked, and the solar cell module is formed of a plurality of solar cells. When configured, it refers to the total area of each solar cell.
The light-receiving surfaces of the solar cell modules 2 are arranged so as to be aligned in one direction, that is, the light-receiving surfaces of all the solar cell modules face one of the layers 4 or 4 ′ made of a polymer compound. Having a structure is suitable for improving power generation efficiency. A layer 4 composed of a polymer compound,
4 'may be a series of layers as shown in FIG. 3 or a discontinuous layer existing only in the portion where the solar cell module 2 is located as shown in FIG. A layer 4 composed of a polymer compound;
4 'may be joined at the ends of the solar cell module and enclose the solar cell module. The properties, materials, and the like of the layers 4 and 4 ′ made of a polymer compound can be the same as those described above. With the configuration of FIG. 3 or FIG.
It is only necessary to dispose the solar cell module in a necessary part of the panel, and it is not necessary to dispose the solar cell module in an unnecessary part, so that manufacturing cost can be reduced.

When two or more solar cell modules are arranged in a solar cell panel, solar cell modules having different characteristics can be mixed in one solar cell panel, and a plurality of solar cells can be provided in the same panel. Since the modules can be connected and arranged in series or in parallel, the generated voltage and generated current of the solar cell panel can be suitably adjusted.

As shown in FIG. 5, in portions where the solar cell module 2 and the layers 4 and 4 'made of a polymer compound are not disposed (are not present), the resin supporting structures 3 and 3' are connected via the bonding sites. They may be combined. Here, FIG.
It is a top view of the solar cell panel of FIG. With the configuration as shown in FIG. 5, the rigidity of the solar cell panel and the integration of the resin support structures 3 and 3 ′ are improved. In FIG. 5, the resin support structure 3 ′ protrudes and is connected to the resin support structure 3. However, the joining method is not particularly limited, and the resin support structure 3 may protrude. However, both the resin support structures 3 and 3 ′ may be protrudingly connected. Also, the binding site is the solar cell module 2
May be provided on the entire periphery of the solar cell module 2, may be provided in a column shape around the solar cell module 2, or the solar cell module 2 may be formed of a resin support structure 3.
And 3 ′.

[0051]

Next, embodiments of the solar cell panel according to the present invention will be described in detail, but the present invention is not limited to these embodiments.

Example 1 First, a sheet of polymethyl methacrylate (linear expansion coefficient: 70 × 10 ⁻⁶ / ° C.) having a thickness of 1 mm and a size of 400 × 400 mm square was put into a mold, and the mold was heated to 180 ° C. And hot press molding, radius of curvature 400m
2 m of cylindrical side panels (resin support structure) 13
I got one. A layer 14 made of a high molecular compound having a size of 300 × 300 mm and a thickness of 2.5 mm was attached to these panels using a two-part cold-setting epoxy adhesive. Next, 1
A-Si on a polyimide film of 00 x 100 mm square
A film-type solar cell module 12 in which a solar cell was manufactured was placed on one of the polymer compound layers 14 at intervals of 5 mm.
Four pieces were arranged at 0 mm. Finally, these are adhered using a two-part cold-setting epoxy adhesive to obtain a structure shown in FIG.
The test solar cell panel 11 having the configuration shown in FIG. FIG. 8 is a plan view of the test solar cell panel 11. In this example, the layer made of the high molecular compound was a sheet formed by hot press molding polystyrene in which ethylene propylene rubber was dispersed so that the composition ratio of polystyrene / ethylene propylene rubber was 50/50. Was.
The longitudinal elastic modulus of the layer made of the polymer compound was 300 MPa.

<Example 2> Instead of polystyrene in which ethylene propylene rubber was dispersed, a hard segment was used:
Polypropylene, soft segment: A test solar cell panel was obtained in the same manner as in Example 1 except that an olefin-based thermoplastic elastomer made of hydrogenated styrene-butadiene rubber was used and the thickness was 40 μm. The longitudinal elastic modulus of the layer made of the polymer compound was 5 MPa.

<Example 3> Instead of polystyrene in which ethylene propylene rubber was dispersed, foamed and 1 mm thick
A test solar cell panel was obtained in the same manner as in Example 1, except that a syndiotactic polypropylene having an expansion ratio of 2.0 was used. The longitudinal elastic modulus of the layer made of the polymer compound was 10 MPa.

<Example 4> Instead of polystyrene in which ethylene propylene rubber was dispersed, trimellitate ester tri-2-ethylhexyl trimellitate was used as a plasticizer at 50 PHR (Parts per Hu
ndred Resin) was used, and a test solar cell panel was obtained in the same manner as in Example 1 except that the thickness was set to 20 μm. The longitudinal elastic modulus of the layer made of the polymer compound was 3 MPa.

Example 5 Instead of polystyrene in which ethylene propylene rubber was dispersed, a molecular weight between crosslinks of about 10
A test solar cell panel was obtained in the same manner as in Example 1, except that the silicone rubber No. 00 was used and the thickness was changed to 20 μm. The longitudinal elastic modulus of the layer made of the polymer compound was 2 MPa.

<Comparative Example 1> A test solar cell was prepared in the same manner as in Example 1 except that the thickness of the polymethyl methacrylate sheet was 2 mm, and a film type solar cell module was laminated without providing a layer made of a polymer compound. A battery panel was obtained.

<Comparative Example 2> A test solar cell panel was obtained in the same manner as in Example 1 except that the thickness of the layer made of a polymer compound was changed to 1 mm. The longitudinal elastic modulus of the layer made of the polymer compound was 300 MPa.

Comparative Example 3 A test solar cell panel was obtained in the same manner as in Example 2 except that the thickness of the layer made of a polymer compound was changed to 20 μm. The longitudinal elastic modulus of the layer made of the polymer compound was 5 MPa.

<Comparative Example 4> A test solar cell panel was obtained in the same manner as in Example 4 except that the thickness of the layer made of a polymer compound was changed to 10 µm. The longitudinal elastic modulus of the layer made of the polymer compound was 3 MPa.

<Comparative Example 5> A test solar cell panel was obtained in the same manner as in Example 5, except that the thickness of the layer composed of the polymer compound was changed to 10 µm. The longitudinal elastic modulus of the layer made of the polymer compound was 2 MPa.

<Heat cycle endurance test> The above Examples 1 to 5
The following tests were performed on Comparative Examples 1 to 5.

First, each test solar cell panel was irradiated with light having a light intensity of AM1.5 by a solar simulator using a solar simulator, and the short-circuit current was measured to obtain the initial value of each solar cell panel. Next, these test solar cell panels were placed in a thermo-hygrostat and subjected to three cycles shown in Table 1.

[0064]

[Table 1]

After the completion of the heat cycle, the short-circuit current was measured in the same manner as described above. The conversion efficiency reduction rate is given by the following equation (2):

[0066]

(Equation 4)

Was calculated. Also, the presence or absence of cracks in the center of the solar cell module was confirmed using an optical microscope. Regarding the cracks, a two-step evaluation was given: ○: not confirmed, ×: crack (crack) occurred. The longitudinal elastic modulus E in Table 2 is IS
It was measured according to OR527 (1993).

In Examples 1 to 5 according to the present invention, the conversion efficiency was maintained even after the thermal cycle, and a clear effect was recognized with respect to Comparative Examples.

[0069]

[Table 2]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of a solar cell panel according to the present invention.

FIG. 2 is a cross-sectional view of another embodiment of the solar cell panel according to the present invention.

FIG. 3 is a sectional view of still another embodiment of the solar cell panel according to the present invention.

FIG. 4 is a sectional view of still another embodiment of the solar cell panel according to the present invention.

FIG. 5 is a cross-sectional view of still another embodiment of the solar cell panel according to the present invention.

FIG. 6 is a plan view of the solar cell panel of FIG.

FIG. 7 is a cross-sectional view of still another embodiment of the solar cell panel according to the present invention.

FIG. 8 is a plan view of the solar cell panel of FIG.

FIG. 9 is a schematic view of a conventional solar cell panel.

FIG. 10 is a cross-sectional view of the solar cell panel of FIG.

FIG. 11 is a cross-sectional view of another conventional solar cell panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 11 Solar cell panel 2, 12 Solar cell module 3, 3 ', 13 Resin support structure 4, 4', 14 Layer made of polymer compound

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F071 AA15 AA20 AA22 AA67 AA75 AC10 AE04 AF62Y AH12 BC02 5F051 AA05 BA03 BA15 BA18 GA03 GA05 JA02

Claims (9)

[Claims] 1. A solar cell panel comprising a layer made of a polymer compound provided between a solar cell module and a resin support structure, wherein the solar cell panel has the following formula (1): (Where E is the longitudinal modulus (MPa) of the layer made of the polymer compound, L is the length (mm) of the solar cell module, and d is the thickness of the layer made of the polymer compound. (Mm), and α is a linear expansion coefficient (× 10 ⁻⁶ / ° C.) of the resin support structure) in the range of −40 to 130 ° C. 2. The solar cell panel according to claim 1, wherein the polymer compound is a rubber-modified thermoplastic resin. 3. The solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic elastomer. 4. The solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic resin to which a plasticizer has been added. 5. The solar cell panel according to claim 1, wherein the polymer compound is a thermoplastic foam resin. 6. The polymer compound having a molecular weight between crosslinks of 5
The solar cell panel according to claim 1, wherein the solar cell panel is a synthetic rubber having a size of 00 or more. 7. The solar cell panel according to claim 2, wherein a Vicat softening temperature of the polymer compound is lower than a Vicat softening temperature of the resin support structure. 8. A resin support structure and a layer made of the polymer compound are provided on both sides of the solar cell module, and the area of the solar cell module is smaller than the area of the resin support structure. The solar cell panel according to claim 1, wherein: 9. The solar cell module according to claim 8, wherein the two resin supporting structures provided on both surfaces of the solar cell module are connected via partially provided connecting portions. Solar panels.