JP2010003860A - Solar-cell module and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve durability, service lifetime and reliability by inhibiting moisture intrusion from the end part of a solar-cell module. <P>SOLUTION: A solar-cell module 10 includes a translucent substrate 12, a solar-cell body 16 placed on the translucent substrate 12 via a sealing resin material 14, and a rear-face protecting material 18 placed on the solar-cell body 16 via the sealing resin material 14. The end face of the translucent substrate 12 is covered by the peripheral part 18a of the rear-face protecting material 18. Further, a sealing material 22 is placed on the end face of the translucent substrate 12. The end face of the translucent substrate 12 is covered by the peripheral part 18a of the rear-face protecting material 18 together with the sealing material 22. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a solar cell module formed by laminating at least a translucent substrate, a surface sealing resin sheet, a solar cell element, a back surface sealing resin sheet, and a back surface protective material, and a method for manufacturing the solar cell module.

  In general, solar cells are used outdoors. Therefore, the solar cell is required to have durability with respect to various environments such as humidity and wind and rain.

  For this reason, the solar cell is manufactured as a solar cell module by encapsulating a solar cell body in which a plurality of solar cell elements are connected with a sealing material between the translucent substrate and the back surface protective material.

  In a conventional solar cell module, a sealing resin sheet such as EVA (ethylene-vinyl acetate copolymer), a solar cell body, a sealing resin sheet, and a back sheet are usually laminated on a light-transmitting substrate. The whole was manufactured by heating and pressurizing under reduced pressure.

  However, since the sealing resin is melted by heating and becomes a fluid state, the sealing resin is cast and extended from the region of the glass substrate. In order to provide a solar cell module as a product, it is necessary to cut off the portion of the sealing resin that protrudes from the glass substrate (the melt-extending portion) together with the extra portion of the protective film (the portion that protrudes from the glass substrate). There is.

  The sealing resin and the protective film are cut off using a cutter or the like. Conventionally, the protective film is partially peeled off during cutting, or aligned along the end surface of the glass substrate and cut off the protective film. It was difficult to do so, and the productivity and yield of solar cell modules as products were reduced.

  Therefore, conventionally, for example, Patent Literature 1 and Patent Literature 2 have been proposed in order to prevent the molten resin from protruding as described above.

  In the method according to Patent Document 1, a sealing resin sheet and a protective film having a size larger than that of a glass substrate are laminated, and the sealing resin is softened and melted to be cured. At that time, the extending portion of the sealing resin that extends from the glass substrate due to the melting of the sealing resin, together with the protruding portion of the corresponding protective film, is the softening point of the sealing resin. Excision is performed under the conditions provided for the above temperature.

  The method according to Patent Document 2 is to suppress the light-receiving surface side sealing material and the back surface side sealing material from extending from the peripheral edge of the translucent substrate during lamination of the manufacturing process of the solar cell module. Lamination polymerization is performed with a size of translucent substrate> back surface side sealing material> front surface side sealing material.

JP 2001-53321 A JP-A-2005-44945

  However, in the conventional laminated type solar cell module, a structure that suppresses the intrusion of moisture from the end portion is not so much studied.

  Further, as in Patent Document 1, when the sealing resin composed of EVA is cut off at an EVA softening point temperature (77 ° C. or higher), the sealing resin is in a low viscosity state. Therefore, there is a problem that excision becomes difficult and the module is soiled, leading to deterioration of productivity. In addition, since it is necessary to warm the module again after curing, it causes an increase in device cost and affects the solar cell module due to the total heat history.

  Moreover, when the back surface side sealing material and front surface side sealing material comprised by EVA are designed smaller than a cover glass like patent document 2, although a sealing material will reach | attain a cover glass surface, There is a risk that poor adhesion between the end portion of the cover glass and the back sheet surface may occur and reliability may be impaired.

  The present invention has been made in consideration of such problems, and can suppress the ingress of moisture from the end of the module, thereby improving durability, improving the service life and reliability, and the like. An object of the present invention is to provide a solar cell module and a method for manufacturing the same.

  Another object of the present invention is to suppress the occurrence of contamination on the end face of the light-transmitting substrate due to the removal of the sealing resin, and to ensure the crosslinking reaction of the sealing resin. An object of the present invention is to provide a solar cell module capable of improving the productivity of the solar cell module and improving the yield, and a method for manufacturing the solar cell module.

[1] A solar cell module according to a first aspect of the present invention includes a translucent substrate,
A solar cell element installed on the translucent substrate via a sealing resin material;
Having a back surface protective material installed via a sealing resin material on the solar cell element,
An end surface of the translucent substrate is covered with a peripheral portion of the back surface protective material.

  Thereby, it is possible to further suppress the intrusion of moisture from the end portion of the solar cell module, and it is possible to improve the durability, the service life, and the reliability.

[2] In the first aspect of the present invention, a sealing material is provided on an end surface of the translucent substrate, and the end surface of the translucent substrate is covered with the sealing material by a peripheral portion of the back surface protective material. May be.

  As a result, the end portion of the solar cell module can be sealed with the back surface protective material and the sealing material, and if the back surface protective material is a type in which aluminum foil is mixed, the moisture resistance is improved. Is also connected.

[3] In the method for manufacturing a solar cell module according to the second aspect of the present invention, a surface encapsulating resin sheet, a solar cell element, a back surface encapsulating resin sheet, and a back surface protective material are laminated on a translucent substrate. A laminate production process for producing
A laminating step of laminating the laminate by performing pressure heating in a state where the laminate is evacuated;
After the laminating step, in the front surface sealing resin sheet and the back surface sealing resin sheet, an excision step of excising only a portion protruding from a peripheral portion of the laminate, and
A heating step of the laminate subjected to the cutting step, and a crosslinking step of crosslinking the front surface sealing resin sheet and the back surface sealing resin sheet;
A coating step of winding the portion of the back surface protective material that protrudes from the peripheral edge of the laminated body so as to cover the end surface of the translucent substrate with the protruding portion after the crosslinking step. And

  Thereby, it is possible to further suppress the intrusion of moisture from the end portion of the solar cell module, and it is possible to improve the durability, the service life, and the reliability.

[4] In the second aspect of the present invention, in the laminating step, the laminate is heated at a temperature and a time at which the surface sealing resin sheet and the back surface sealing resin sheet have viscosity but crosslinking has not started. You may do it.

  In this case, since the front surface sealing resin sheet and the back surface sealing resin sheet are not cross-linked, they are not in a high-viscosity state, so in the subsequent excision step, only the part protruding from the peripheral edge of the laminate is used. Can be excised easily.

[5] In the second aspect of the present invention, in the laminating step, the laminate is preferably heated at a temperature of 120 ° C. or higher and 130 ° C. or lower for a time of 5 minutes or longer and 10 minutes or shorter. Thereby, although the said surface sealing resin sheet and the said back surface sealing resin sheet have viscosity, the bridge | crosslinking can be heated at the temperature and time which have not started bridge | crosslinking. In addition, when the said front surface sealing resin sheet and the said back surface sealing resin sheet are comprised by EVA, the temperature of about 125 degreeC and time within 10 minutes are preferable, for example.

[6] In the second aspect of the present invention, in the laminate produced in the laminate production step, the planar area of the translucent substrate is A1, the planar area of the surface sealing resin sheet is A2, and the solar cell. When the plane area of the element is A3, the plane area of the back surface sealing resin sheet is A4, and the plane area of the back surface protective material is A5,
A5>A4>A1>A2> A3
Is preferably satisfied.

  Thereby, when the surface sealing resin sheet and the back surface sealing resin sheet are subjected to a crosslinking reaction, the thickness after crosslinking of the surface sealing resin sheet and the back surface sealing resin sheet exposed from the end surface of the solar cell module. Can be made thinner. That is, the distance (gap) between the peripheral end of the translucent substrate and the peripheral end of the back surface protective material on the end surface of the solar cell module can be reduced. Therefore, it is possible to suppress the intrusion of moisture from the end portion of the solar cell module, which contributes to the improvement of durability.

[7] In the second aspect of the present invention, in the covering step, a sealing material is provided on an end surface of the translucent substrate, and the end surface of the translucent substrate is sealed with the protruding portion of the back surface protective material. You may make it wind so that it may coat | cover with a stop material.

  As a result, the end portion of the solar cell module can be sealed with the back surface protective material and the sealing material, and if the back surface protective material is a type in which aluminum foil is mixed, the moisture resistance is improved. Is also connected.

  As described above, according to the solar cell module and the manufacturing method thereof according to the present invention, it is possible to suppress the ingress of moisture from the end portion of the module, and the durability is improved, the service life and the reliability are improved. Can be achieved.

  In addition, it is possible to suppress the occurrence of contamination on the end face of the translucent substrate due to the cutting of the sealing resin, and to surely carry out the crosslinking reaction of the sealing resin, thereby improving the productivity of the solar cell module. Improvement and yield improvement can be achieved.

  Hereinafter, embodiments of a solar cell module and a manufacturing method thereof according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the solar cell module 10 according to the present embodiment includes a translucent substrate 12, and a solar cell main body 16 installed on the translucent substrate 12 via a sealing resin material 14. The back surface protective material 18 is disposed on the solar cell body 16 via the sealing resin material 14, and the end surface of the translucent substrate 12 is covered with the peripheral portion 18 a of the back surface protective material 18. ing. Here, the peripheral portion 18 a of the back surface protective material 18 refers to a frame-like region including an inner portion from the periphery of the back surface protective material 18. The same applies hereinafter.

  The solar cell main body 16 is configured by arranging a plurality of solar cell elements 20 in, for example, a horizontal direction (also in a vertical direction if necessary).

  Further, in the present embodiment, the sealing material 22 is installed on the end surface of the translucent substrate 12, and the end surface of the translucent substrate 12 is covered with the sealing material 22 by the peripheral portion 18 a of the back surface protection material 18. Yes.

  Next, the manufacturing method of the solar cell module 10 according to the present embodiment will be described with reference to FIGS.

  First, in step S1 of FIG. 2, as shown in FIG. 3, the surface sealing resin sheet 24, the solar cell main body 16, the back surface sealing resin sheet 26, and the back surface protection material 18 are arranged on the translucent substrate 12 in this order. The laminated body 28 is produced by laminating (stacking body production process).

  As the translucent substrate 12, a substrate such as glass or polycarbonate resin can be used. In this case, as the glass plate, for example, white plate glass, tempered glass, double tempered glass, heat ray reflective glass or the like is used. For example, white plate tempered glass having a thickness of 3 mm to 5 mm is used. When a resin substrate such as polycarbonate resin is used, a substrate having a thickness of about 5 mm can be used.

  Both the front surface sealing resin sheet 24 and the back surface sealing resin sheet 26 can use a resin sheet composed of an ethylene-vinyl acetate copolymer (EVA), and the thickness is, for example, 0.4 mm or more and 1 mm or less. is there.

  As the back surface protective material 18, a fluorine resin sheet having weather resistance in which an aluminum foil is sandwiched so as not to transmit moisture, a polyethylene terephthalate (PET) sheet on which alumina or silica is deposited, and the like can be used.

  These translucent substrate 12, surface sealing resin sheet 24, solar cell body 16, back surface sealing resin sheet 26, and back surface protective material 18 each have a substantially rectangular shape when viewed from the top surface, The size relationship is as follows.

That is, the planar area of the translucent substrate 12 is A1, the planar area of the surface sealing resin sheet 24 is A2, the planar area of the solar cell body 16 is A3, the planar area of the back surface sealing resin sheet 26 is A4, and the back surface protective material When the plane area of 18 is A5,
A5>A4>A1>A2> A3
To come to be satisfied.

  Then, in step S2 of FIG. 2, the laminated body 28 is put into a vacuum laminating apparatus, and the laminated body is laminated by applying pressure and heating in a state where the laminated body 28 is evacuated (lamination process). That is, the translucent substrate 12, the front surface sealing resin sheet 24, the solar cell main body 16, the back surface sealing resin sheet 26, and the back surface protective material 18 that are constituent members of the laminate 28 are bonded together in a vacuumed state.

  In this laminating step, the laminated body 28 is heated at a temperature and a time at which the surface sealing resin sheet 24 and the back surface sealing resin sheet 26 have viscosity but crosslinking has not started. Specifically, the laminated body 28 is heated at a temperature of 120 ° C. to 130 ° C. for a time of 5 minutes to 10 minutes.

  Through this laminating process, as shown in FIG. 4A, the peripheral portion of the back surface sealing resin sheet 26 in the laminate 28 is deformed so as to contact the main surface of the translucent substrate 12, and the surface sealing is performed. The sealing resin sheet 24 is combined to form one sealing resin material 14. At this time, the peripheral portion 18a of the back surface protective material 18 and the sealing resin are determined based on the size relationship of the planar areas of the translucent substrate 12, the front surface sealing resin sheet 24, the back surface sealing resin sheet 26, and the back surface protective material 18 described above. The peripheral part 14 a of the material 14 protrudes from the peripheral part of the translucent substrate 12. The sealing resin material 14 is heated at a temperature and a time at which the surface sealing resin sheet 24 and the back surface sealing resin sheet 26 have viscosity but crosslinking has not started. In some cases, the sealing resin sheet 26 may be integrated, or in some of the portions where these sheets are in contact with each other, an interface may exist.

  After that, in step S3 of FIG. 2, as shown in FIG. 4B, sealing is performed among the peripheral portion 18a of the back surface protective material 18 and the peripheral portion 14a of the sealing resin material 14 protruding from the peripheral portion of the translucent substrate 12. Only the peripheral portion 14a of the resin material 14 is cut out (cutting process). In this case, since the front surface sealing resin sheet 24 and the back surface sealing resin sheet 26 (sealing resin material 14) are not crosslinked, they are not in a high-viscosity state, so that the portion protrudes from the peripheral portion of the translucent substrate 12. Only the (peripheral portion 14a of the sealing resin material 14) can be easily cut out along the peripheral edge of the light-transmitting substrate 12, and the residue of the sealing resin material is not present on the end surface 12a of the light-transmitting substrate 12. It becomes almost nonexistent.

  Thereafter, in step S4 of FIG. 2, the laminated body 28 in which only the peripheral portion 14a of the sealing resin material 14 is cut is put into a heating furnace, and the laminated body 28 is heated in the heating furnace, and the sealing resin material 14 curing is completed (crosslinking step). This heat treatment is performed at a temperature and a time at which the sealing resin material 14 causes a crosslinking reaction. Specifically, it is performed at a temperature of 140 ° C. or more and a time of 10 minutes or more and 120 minutes or less.

  Usually, in the heat treatment in which the sealing resin material 14 is subjected to a crosslinking reaction, the crosslinking agent mixed in the sealing resin material 14 is thermally decomposed, and radicals generated by this thermal decomposition (crosslinking contributing radicals) are low molecular weight EVA. It acts on (the sealing resin material) and crosslinks. Therefore, if the sealing resin material 14 is not sandwiched between other members, the crosslinking-contributing radicals are scattered in the air, causing a problem that the crosslinking reaction does not proceed.

  Further, if a residue of the sealing resin material 14 is present on the end surface 12a of the translucent substrate 12, since this residue is in contact with air, the crosslinking reaction hardly proceeds and a so-called crosslinking failure occurs. . When the laminated body 28 is made into the solar cell module 10 after that, the residue of poor crosslinking may cause an appearance or a sealing failure such as melting or adhering to other members.

  However, in this manufacturing method, since the heat treatment is performed while the back surface protection material 18 is not cut off, the back surface protection material 18 serves as a lid that covers the sealing resin material 14. As a result, the radicals that contribute to crosslinking do not scatter in the air, and efficiently act on low molecular weight EVA (material of the sealing resin material) to crosslink.

  Further, since there is almost no residue of the sealing resin material 14 on the end surface 12a of the translucent substrate 12, the above-described inconvenience due to poor crosslinking of the residue can be avoided.

  Thereafter, in step S5, as shown in FIG. 1, the portion of the back surface protective material 18 that protrudes from the peripheral portion of the laminated body 28 (the peripheral portion 18a of the back surface protective material) It winds so that the peripheral surface 18a) may coat | cover the end surface (side surface) of the translucent board | substrate 12 (coating process). In particular, in this manufacturing method, the sealing material 22 is installed on the end surface of the translucent substrate 12, and the end surface of the translucent substrate 12 is covered with the sealing material 22 around the peripheral portion 18 a of the back surface protection material 18. I am doing so. At this stage, the solar cell module 10 is completed.

  Thereafter, as shown in step S6 of FIG. 2, although not shown, a sealing member such as butyl rubber or a resin foam is wound around the entire periphery of the solar cell module 10 and further, the sealing member is covered. A frame is attached and the periphery of the solar cell module 10 is sealed (sealing step).

  Thus, in the solar cell module and the manufacturing method thereof according to the present embodiment, it is possible to suppress the occurrence of dirt on the end surface 12a of the translucent substrate 12 due to the excision of the sealing resin material 14, The cross-linking reaction of the sealing resin material 14 can be reliably performed, and the productivity of the solar cell module 10 and the yield can be improved.

In particular, the planar areas A1 to A5 of the translucent substrate 12, the surface sealing resin sheet 24, the solar cell main body 16, the back surface sealing resin sheet 26, and the back surface protective material 18 that constitute the laminate 28,
A5>A4>A1>A2> A3
To come to be satisfied.

  Thereby, when the surface sealing resin sheet 24 and the back surface sealing resin sheet 26 (sealing resin material 14) are subjected to a crosslinking reaction, the thickness of the sealing resin material 14 that is exposed from the end surface of the solar cell module 10 is crosslinked. Can be made thinner. That is, the distance (gap) between the peripheral edge of the translucent substrate 12 on the end surface of the solar cell module 10 and the portion of the back surface protective member 18 corresponding to the periphery of the translucent substrate can be reduced. . Therefore, the infiltration of moisture from the end of the solar cell module 10 can be suppressed, which contributes to the improvement of durability.

  Here, one experimental example is shown. This experimental example is a comparative example (samples 1 to 4), example 1 (samples 101 to 104), and example 2 (samples 201 and 202). The change of

  In the comparative example, as shown in FIG. 5A, the planar area A2 of the front surface sealing resin sheet 24 and the planar area A4 of the back surface sealing resin sheet 26 were made the same, and a solar cell module was manufactured by the manufacturing method described above. The edge part structure of the solar cell module which concerns on the produced comparative example is shown to FIG. 6A. 5A to 5C, the back surface protective material 18 is omitted.

  In Example 1, as shown in FIG. 5B, the peripheral portion is reduced by about 5 mm with respect to the size of the surface sealing resin sheet 24 of the comparative example, and the planar area A2 of the surface sealing resin sheet 24 and the back surface sealing resin A solar cell module was manufactured by the above-described manufacturing method with the relationship of the planar area A4 of the sheet 26 being A4> A2.

  In Example 2, as shown in FIG. 5C, the peripheral portion is reduced by about 7.5 mm with respect to the size of the surface sealing resin sheet 24 of the comparative example, and the planar area A2 of the surface sealing resin sheet 24 and the back surface sealing are reduced. A solar cell module was manufactured by the above-described manufacturing method, assuming that the relationship of the planar area A4 of the stop resin sheet 26 was A4> A2.

  The edge part structure of the solar cell module which concerns on produced Example 1 and 2 is shown to FIG. 6B. An end structure of the solar cell module according to the example, in particular, a gap G1 between the peripheral end of the translucent substrate 12 and a portion of the back surface protective material 18 corresponding to the peripheral end of the translucent substrate 12 is formed. It is narrower by about 1/5 than the gap G2 of the comparative example (see FIG. 6A).

  In both the comparative example and the example, two resistors are installed at a position 17.5 mm deeper than the end surface of the translucent substrate 12 in one main surface of the translucent substrate 12, and the voltage between both ends of each resistor is set. Was measured, and the resistance change rate of the peripheral portion in the comparative example and the example was determined. FIG. 7 shows changes in the resistance change rate for 1000 hours (endurance time) in a high-temperature and high-humidity atmosphere at 85 ° C. and 85% RH in the comparative example and the example. The smaller the change in resistance change rate, the smaller the amount of moisture intrusion.

  As shown in FIG. 7, the resistance change rate changes by changing the planar area A2 of the surface sealing resin sheet 24. In particular, the resistance change rate changes as the planar area A2 of the surface sealing resin sheet 24 decreases. Is small. This is because the smaller the planar area A2 of the surface sealing resin sheet 24 is, the smaller the gap between the peripheral edge of the translucent substrate 12 and the portion corresponding to the peripheral edge of the translucent substrate 12 in the back surface protective material 18. It is considered that the intrusion of moisture is suppressed due to the decrease in the gap.

  Furthermore, in this embodiment, since the end surface of the translucent substrate 12 is covered with the peripheral portion 18a of the back surface protective material 18, the intrusion of moisture from the end portion of the solar cell module 10 is further suppressed. It is possible to improve durability, improve service life, and improve reliability.

  And since the edge part of the solar cell module 10 can be sealed with the back surface protective material 18 and the sealing material 22, a double sealing structure is implement | achieved with the sealing by the sealing member performed at step S6. Can do. Moreover, if the back surface protective material 18 is of a type in which aluminum foil is mixed, the moisture resistance is improved.

  In addition, the solar cell module and the manufacturing method thereof according to the present invention are not limited to the above-described embodiments, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

It is sectional drawing which abbreviate | omits and shows the solar cell module which concerns on this Embodiment. It is process block diagram which shows the manufacturing method which concerns on this Embodiment. It is sectional drawing which abbreviate | omits and partially shows the state which laminated | stacked the surface sealing resin sheet, the solar cell main body, the back surface sealing resin sheet, and the back surface protection material in this order on the translucent board | substrate. . FIG. 4A is a cross-sectional view showing the laminated body partially omitted, and FIG. 4B is a cross-sectional view showing only a part of the sealing resin material protruding from the periphery of the laminated body. FIG. 4C is a cross-sectional view illustrating a state in which the laminated body is subjected to heat treatment (crosslinking of the sealing resin material) with a part thereof omitted. FIG. 5A is a cross-sectional view showing the laminated body according to the comparative example (samples 1 to 4) with a part omitted, and FIG. 5B shows the laminated body according to Example 1 (samples 101 to 104) with a part omitted. FIG. 5C is a cross-sectional view in which a part of the laminate according to Example 2 (Samples 201 and 202) is omitted. 6A is a cross-sectional view showing the end structure of the solar cell module according to the manufactured comparative example, and FIG. 6B is a cross-sectional view showing the end structure of the solar cell module according to Examples 1 and 2 thus manufactured. . It is a graph which shows the change of the resistance change rate with respect to the durable time of a comparative example and Examples 1 and 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Solar cell module 12 ... Translucent board | substrate 14 ... Sealing resin material 16 ... Solar cell main body 18 ... Back surface protective material 20 ... Solar cell element 22 ... Sealing material 24 ... Surface sealing resin sheet 26 ... Back surface sealing resin Sheet 28 ... Laminate

Claims (7)

A translucent substrate;
A solar cell element installed on the translucent substrate via a sealing resin material;
Having a back surface protective material installed via a sealing resin material on the solar cell element,
An end surface of the translucent substrate is covered with a peripheral portion of the back surface protective material. The solar cell module according to claim 1, wherein
A sealing material is installed on the end face of the translucent substrate,
An end surface of the translucent substrate is covered with the sealing material by a peripheral portion of the back surface protective material. On the translucent substrate, a laminate production step of producing a laminate by laminating a surface sealing resin sheet, a solar cell element, a back surface sealing resin sheet, and a back surface protective material;
A laminating step of laminating the laminate by performing pressure heating in a state where the laminate is evacuated;
After the laminating step, in the front surface sealing resin sheet and the back surface sealing resin sheet, an excision step of excising only a portion protruding from a peripheral portion of the laminate, and
A heating step of the laminate subjected to the cutting step, and a crosslinking step of crosslinking the front surface sealing resin sheet and the back surface sealing resin sheet;
A coating step of winding the portion of the back surface protective material that protrudes from the peripheral edge of the laminated body so as to cover the end surface of the translucent substrate with the protruding portion after the crosslinking step. A method for manufacturing a solar cell module. In the manufacturing method of the solar cell module of Claim 3,
The laminating step includes heating the laminated body at a temperature and a time at which the surface sealing resin sheet and the back surface sealing resin sheet have viscosity but crosslinking has not started. Method. In the manufacturing method of the solar cell module of Claim 3 or 4,
In the laminating step, the laminate is heated at a temperature of 120 ° C. or higher and 130 ° C. or lower for a time of 5 minutes or longer and 10 minutes or shorter. In the manufacturing method of the solar cell module of any one of Claims 3-5,
The laminate produced in the laminate production step has a plane area of the translucent substrate of A1, a plane area of the surface sealing resin sheet of A2, a plane area of the solar cell element of A3, and the back surface sealing. When the plane area of the stop resin sheet is A4 and the plane area of the back surface protective material is A5,
A5>A4>A1>A2> A3
The manufacturing method of the solar cell module characterized by satisfying these. In the manufacturing method of the solar cell module of any one of Claims 3-6,
The covering step includes setting a sealing material on an end surface of the translucent substrate, and winding the end surface of the translucent substrate together with the sealing material at the protruding portion of the back surface protective material. A method for producing a solar cell module.

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