JP6646471B2 - Solar cell module and method of manufacturing the same - Google Patents

Description

  The present invention relates to a solar cell module in which a plurality of solar cells are connected to each other, and a method for manufacturing the same.

  Conventionally, a solar cell module in which a plurality of solar cells are connected to each other is known. For example, Patent Document 1 below discloses an example of a solar cell module. In the solar cell in this solar cell module, a lower electrode is provided on a base material. On the lower electrode, a laminate including a p-layer, an i-layer, and an n-layer is laminated from the p-layer side. An upper electrode is provided on the n-layer. The upper electrode is connected to a lower electrode of an adjacent solar cell. Thereby, a plurality of solar cells are connected to each other.

JP 2011-100923 A

  In a manufacturing process for obtaining a solar cell disclosed in Patent Document 1, an upper electrode, an n-layer, an i-layer, and a p-layer are collectively divided by laser light irradiation. At this time, burrs were sometimes formed in the divided portions of the upper electrode. The burrs contacted the lower electrode, and the upper electrode and the lower electrode were sometimes short-circuited. In addition, burrs were sometimes formed in portions where the n layer, the i layer, or the p layer was divided. When the burrs of the n-layer, the i-layer or the p-layer contact the lower electrode, the characteristics of the solar cell module may be deteriorated.

  An object of the present invention is to provide a solar cell module and a method of manufacturing the same, in which deterioration of characteristics and short-circuit between electrodes are unlikely to occur.

  The solar cell module according to the present invention is a solar cell module in which a plurality of solar cells are electrically connected to each other, a base material, and a plurality of first electrodes provided on the base material, A plurality of second electrodes disposed so as to face the plurality of first electrodes, and a plurality of second electrodes disposed between the plurality of first electrodes and the plurality of second electrodes. And a partition provided on the first electrode, having a length direction, and made of an insulator, wherein each of the solar cells includes the first electrode and the second electrode. 2 electrodes and the photoelectric conversion layer, respectively, each of the solar cells has first and second end faces facing each other, and at least two of the solar cells have the partition portion. Wherein the partition is disposed on at least one of the first and second end surfaces. The photoelectric conversion layer is provided so as to reach over the partition, and the solar cells having the partition are adjacent to each other, and the partition of one of the adjacent solar cells is provided. The part and the partition part of the other solar cell among the adjacent solar cells are opposed to each other with a gap.

  In one specific aspect of the solar cell module according to the present invention, in the length direction of the partition, one of the first and second end faces of the solar cell, one of the end faces provided with the partition. The partition part extends from one end to the other end.

  In another specific aspect of the solar cell module according to the present invention, the thickness of the partition wall as a dimension in a direction in which the first electrode, the photoelectric conversion layer, and the second electrode are stacked is the same as that of the photoelectric conversion module. It is thicker than the average thickness of the conversion layer.

  In still another specific aspect of the solar cell module according to the present invention, the average thickness of the photoelectric conversion layer, the average thickness of the portion located on the partition, is greater than the average thickness of the other portions in the photoelectric conversion layer. thin.

  In another particular aspect of the solar cell module according to the present invention, the second electrode of at least one of the solar cells extends over the first electrode of at least one of the adjacent solar cells.

  In still another specific aspect of the solar cell module according to the present invention, the partition has a groove reaching the first electrode, and the groove is not provided with the photoelectric conversion layer. The second electrode of another solar cell reaches a portion where the electrode is exposed from the photoelectric conversion layer.

  In still another specific aspect of the solar cell module according to the present invention, the photoelectric conversion layer includes an organic-inorganic perovskite compound.

  In still another specific aspect of the solar cell module according to the present invention, the partition portion is made of an insulating resin.

  The method for manufacturing a solar cell module according to the present invention includes a step of preparing a base material, a step of providing a plurality of first electrodes on the base material, and a step of providing an insulator on the plurality of first electrodes. Providing a plurality of protrusions having a length direction; and laminating a photoelectric conversion layer before division on the plurality of first electrodes so as to cover the plurality of protrusions; Dividing the photoelectric conversion layer before the division into a plurality of photoelectric conversion layers so that the first electrode is exposed from the photoelectric conversion layer before the division, and the plurality of photoelectric conversion layers of the first electrode Laminating a second electrode before division on the portion exposed from the substrate and the plurality of photoelectric conversion layers, and laminating the second electrode before division, the protrusion, and the photoelectric conversion layer In a portion, the second electrode before the division is divided into a plurality of second electrodes. And comprising a step of dividing the projecting portion into a plurality of partition walls.

  In a specific aspect of the method for manufacturing a solar cell module according to the present invention, in the step of dividing the photoelectric conversion layer before the division, when viewed in a plan view, the protrusion and the photoelectric conversion layer before the division overlap. In the step of dividing the photoelectric conversion layer before the division, and forming a groove in the protruding portion so as to reach the first electrode, and laminating the second electrode before the division, In the groove, the second electrode before the division is stacked so as to reach the first electrode exposed from the plurality of photoelectric conversion layers.

  In another specific aspect of the method for manufacturing a solar cell module according to the present invention, in the step of dividing the second electrode before the division, the projecting portion is made of an insulating resin, and the step of cutting and mechanically irradiating a laser beam is performed. The second electrode before the division is divided and the protruding portion is divided into the plurality of partition portions by any one of the typical cutting.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a solar cell module and a method for manufacturing the solar cell module, in which deterioration of characteristics and short-circuit between electrodes hardly occur.

It is a perspective view of the solar cell module concerning a 1st embodiment of the present invention. It is a front sectional view of the solar cell module concerning a 1st embodiment of the present invention. (A)-(d) is front sectional drawing for demonstrating the manufacturing method of the solar cell module which concerns on 1st Embodiment of this invention. (A) And (b) is a front sectional view for explaining the manufacturing method of the solar cell module according to the first embodiment of the present invention. It is a front sectional view of the solar cell module concerning a modification of a 1st embodiment of the present invention. It is a front sectional view of the solar cell module concerning a 2nd embodiment of the present invention. (A) And (b) is front sectional drawing for demonstrating the manufacturing method of the solar cell module which concerns on 2nd Embodiment of this invention.

  Hereinafter, the present invention will be clarified by describing specific embodiments of the present invention with reference to the drawings.

  FIG. 1 is a perspective view of the solar cell module according to the first embodiment of the present invention. FIG. 2 is a front sectional view of the solar cell module according to the first embodiment.

  Although not particularly limited, the solar cell module 1 of the present embodiment shown in FIG. 1 is a monolithic solar cell module. The solar cell module 1 has a base material 3. In the present embodiment, the substrate 3 is made of an insulating material.

  The solar cell module 1 has a plurality of solar cells 2 provided on a base material 3. The plurality of solar cells 2 are electrically connected to each other.

More specifically, a plurality of first electrodes 4 are provided on the base material 3. As a material of each first electrode 4, for example, FTO (fluorine-doped tin oxide), sodium, sodium-potassium alloy, lithium, magnesium, aluminum, magnesium-silver mixture, magnesium-indium mixture, aluminum-lithium alloy, Al / _Al 2 _{O 3} mixtures, Al / LiF mixture, a metal such as gold, CuI, ITO (indium tin _oxide), SnO 2, AZO (aluminum zinc oxide), IZO (indium zinc oxide), GZO (gallium zinc oxide Oxide) and the like, and a conductive transparent polymer. These materials may be used alone or in combination of two or more.

  On each first electrode 4, a photoelectric conversion layer 5 is laminated. Details of the photoelectric conversion layer 5 will be described later.

On each photoelectric conversion layer 5, a second electrode 6 is provided. Each first electrode 4 and each second electrode 6 are arranged so as to face each other. Examples of the material of each second electrode 6 include FTO, sodium, sodium-potassium alloy, lithium, magnesium, aluminum, a magnesium-silver mixture, a magnesium-indium mixture, an aluminum-lithium alloy, and an Al / Al ₂ O ₃ mixture. , Al / LiF mixtures, metals such as gold, conductive transparent materials such as CuI, ITO, SnO ₂ , AZO, IZO, GZO, and conductive transparent polymers. These materials may be used alone or in combination of two or more.

  Note that the second electrode 6 is desirably transparent. Thereby, sufficient light can be guided to the photoelectric conversion layer 5. Therefore, for the second electrode 6, it is desirable to use an electrode material having excellent transparency such as ITO.

  The second electrode 6 of at least one solar cell 2 extends over the first electrode 4 of at least one adjacent solar cell 2. Thus, the plurality of solar cells 2 are electrically connected to each other. In the present embodiment, the plurality of solar cells 2 are connected to each other in series.

  As shown in FIG. 1, each solar cell 2 has first and second end faces 2a and 2b facing each other. The first end face 2a of one of the adjacent solar cells 2 and the second end face 2b of the other solar cell 2 face each other via a gap.

  On each of the first electrodes 4, a partition 7 having a length direction is provided. Each of the photoelectric conversion layers 5 is continuously stacked on each of the first electrodes 4 and each of the partition walls 7. The partition 7 is made of an insulating material. The partition 7 may be made of, for example, an insulating resin or may be made of an insulating inorganic material.

  At least one solar cell 2 has a partition 7 disposed on the first end face 2a and a partition 7 disposed on the second end face 2b. The partition 7 arranged on the first end face 2a extends along the first end face 2a. The partition 7 extends from one end of the first end surface 2a to the other end in the length direction of the partition 7.

  Similarly, the partition 7 disposed on the second end face 2b extends along the second end face 2b. The partition 7 extends from one end of the second end surface 2b to the other end in the length direction of the partition 7. Each partition 7 of the adjacent solar cells 2 faces each other with a gap therebetween.

  The partition 7 may be provided on at least two solar cells 2. In this case, the plurality of solar cells 2 having the partition 7 are adjacent to each other, and the partition 7 of one of the adjacent solar cells 2 and the partition of the other solar cell 2 are adjacent to each other. 7 may face each other with a gap therebetween. However, it is preferable that the partition 7 is provided in all the solar cells 2.

  The feature of the present embodiment is that the partition walls 7 of the adjacent solar cells 2 face each other with a gap therebetween. In the manufacturing process for obtaining the solar cell module 1, even if burrs are formed on the second electrode 6 or the photoelectric conversion layer 5, contact between the burrs and the first electrode 4 hardly occurs. Therefore, the deterioration of the characteristics of the solar cell module 1 and the short circuit between the electrodes hardly occur. This will be described below together with the method for manufacturing the solar cell module 1 of the present embodiment.

  3A to 3D are front cross-sectional views illustrating a method for manufacturing the solar cell module according to the first embodiment. FIGS. 4A and 4B are front cross-sectional views illustrating the method for manufacturing the solar cell module according to the first embodiment.

  As shown in FIG. 3A, a substrate 3 is prepared. Next, the first electrode 4A before division is formed on the base material 3. The first electrode 4A before the division can be formed by, for example, a sputtering method or a CVD method.

  Next, the first electrode 4A before division is divided. Thus, a plurality of first electrodes 4 are formed on the base material 3 as shown in FIG. The first electrode 4A before the division can be divided by, for example, cutting by irradiation with laser light. Alternatively, the first electrode 4A before the division may be divided by mechanical cutting.

  Next, as shown in FIG. 3C, a protruding portion 7A is formed on each first electrode 4. Examples of the method of forming the protrusion 7A include photolithography, screen printing, flexographic printing, offset gravure printing, and the like.

  Next, the photoelectric conversion layer 5A before division is stacked on the plurality of first electrodes 4 so as to cover the plurality of protrusions 7A. Next, the photoelectric conversion layer 5A before division is divided such that the plurality of first electrodes 4 are exposed from the photoelectric conversion layer 5A before division. Thereby, as shown in FIG. 3D, a plurality of photoelectric conversion layers 5 are formed. The division of the photoelectric conversion layer 5A before division is performed, for example, by cutting by laser light irradiation or mechanical cutting.

  Next, as shown in FIG. 4A, a second electrode 6A before division is formed on a portion where the first electrode 4 is exposed from the plurality of photoelectric conversion layers 5 and on the plurality of photoelectric conversion layers 5. Formed continuously. The second electrode 6A before the division can be formed by, for example, a sputtering method.

  Next, the laminated portion where the second electrode 6A, each protruding portion 7A, and each photoelectric conversion layer 5 before the division are laminated is divided. Thereby, as shown in FIG. 4B, a plurality of second electrodes 6 and a plurality of partition walls 7 are formed. The division of the laminated portion is performed by, for example, cutting by laser light irradiation or mechanical cutting.

  At this time, the first electrode 4 and the second electrode 6 are separated by the partition 7. Therefore, the distance between the first electrode 4 and the second electrode 6 is long at the first and second end surfaces 2a and 2b. Therefore, even when burrs are generated on the second electrode 6, it is difficult for the burrs of the second electrode 6 to reach the first electrode 4. Therefore, a short circuit between the first electrode 4 and the second electrode 6 hardly occurs. Similarly, even when burrs are generated on the photoelectric conversion layer 5, the burrs on the photoelectric conversion layer 5 hardly reach the first electrode 4. Therefore, the characteristics of the solar cell module 1 hardly deteriorate.

  The protrusion 7A shown in FIG. 4A may be made of any of an insulating inorganic material and an insulating resin, but is preferably made of an insulating resin. In this case, the protruding portion 7A in the laminated portion can be easily and reliably divided by cutting by laser beam irradiation or mechanical cutting. Therefore, productivity can be improved.

  Returning to FIG. 1, the details of the photoelectric conversion layer 5 will be described below.

  In the present embodiment, the photoelectric conversion layer 5 contains an organic-inorganic perovskite compound. In the solar cell 2, photoelectric conversion is performed by the organic-inorganic perovskite compound, and power is extracted.

The photoelectric conversion layer 5 includes an organic-inorganic perovskite compound represented by a general formula RMX ₃ (where R is an organic molecule, M is a metal atom, and X is a halogen atom or a chalcogen atom). By using the organic-inorganic perovskite compound for the photoelectric conversion layer, the photoelectric conversion efficiency of the solar cell can be improved.

It said R is an organic _{molecule, C l N m H n (} l, m, n are both positive integers) is preferably represented by.

Specifically, R is, for example, methylamine, ethylamine, propylamine, butylamine, pentylamine, hexylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, dipentylamine, dihexylamine, trimethylamine, triethylamine, tripropylamine Amine, tributylamine, tripentylamine, trihexylamine, ethylmethylamine, methylpropylamine, butylmethylamine, methylpentylamine, hexylmethylamine, ethylpropylamine, ethylbutylamine, imidazole, azole, pyrrole, aziridine, azirine, Azetidine, azeto, azole, imidazoline, carbazole and their ions (eg, methyl ammonium (CH ₃ NH ₃ ), etc.) and Phenethyl ammonium and the like. Of these, methylamine, ethylamine, propylamine, butylamine, pentylamine, hexylamine and their ions and phenethylammonium are preferred, and methylamine, ethylamine, propylamine and these ions are more preferred.

  M is a metal atom, for example, lead, tin, zinc, titanium, antimony, bismuth, nickel, iron, cobalt, silver, copper, gallium, germanium, magnesium, calcium, indium, aluminum, manganese, chromium, molybdenum, Europium and the like. These metal atoms may be used alone or in combination of two or more.

  X is a halogen atom or a chalcogen atom, and examples thereof include chlorine, bromine, iodine, sulfur, and selenium. These halogen atoms or chalcogen atoms may be used alone or in combination of two or more. Among them, a halogen atom is preferable because the organic-inorganic perovskite compound becomes soluble in an organic solvent by containing a halogen in the structure and can be applied to an inexpensive printing method. Further, iodine is more preferable because the energy band gap of the organic-inorganic perovskite compound becomes narrow.

  The organic-inorganic perovskite compound preferably has a cubic structure in which a metal atom M is disposed at the body center, an organic molecule R is disposed at each vertex, and a halogen atom or chalcogen atom X is disposed at the face center.

  The photoelectric conversion layer 5 may further contain an organic semiconductor or an inorganic semiconductor in addition to the organic-inorganic perovskite compound as long as the effects of the present invention are not impaired. Note that the organic semiconductor or the inorganic semiconductor referred to here may serve as an electron transport layer or a hole transport layer.

  When the photoelectric conversion layer 5 contains the organic semiconductor or the inorganic semiconductor, the photoelectric conversion layer 5 may be a laminate in which a thin-film organic semiconductor or inorganic semiconductor site and a thin-film organic-inorganic perovskite compound site are stacked, It may be a composite film in which a semiconductor or inorganic semiconductor site and an organic / inorganic perovskite compound site are compounded. A laminate is preferable in that the production method is simple, and a composite film is preferable in that the charge separation efficiency in the organic semiconductor or the inorganic semiconductor can be improved.

  The preferable lower limit of the thickness of the organic-inorganic perovskite compound portion in the form of a thin film is 5 nm, and the preferable upper limit is 5000 nm. When the thickness is 5 nm or more, light can be sufficiently absorbed, and the photoelectric conversion efficiency increases. When the thickness is 5000 nm or less, generation of a region where charge separation cannot be performed can be suppressed, which leads to improvement in photoelectric conversion efficiency. A more preferred lower limit of the thickness is 10 nm, a more preferred upper limit is 1000 nm, a still more preferred lower limit is 20 nm, and a still more preferred upper limit is 500 nm.

  Note that the material and configuration of the photoelectric conversion layer 5 are not particularly limited.

  It is preferable that an electron transport layer is laminated between the first electrode 4 and the photoelectric conversion layer 5. Holes can be blocked and electrons can be transported by the electron transport layer. Therefore, the efficiency of photoelectric conversion can be increased.

  It is preferable that a hole transport layer is laminated between the photoelectric conversion layer 5 and the second electrode 6. Thereby, electrons can be blocked by the hole transport layer and holes can be transported. Therefore, the efficiency of photoelectric conversion can be increased.

  Here, the direction in which the first electrode 4, the photoelectric conversion layer 5, and the second electrode 6 are stacked is referred to as a stacking direction. At this time, as in the present embodiment, the thickness of the partition 7 as a dimension in the stacking direction is preferably larger than the average thickness of the photoelectric conversion layer 5. In this case, the distance between the first electrode 4 and the photoelectric conversion layer 5 and the second electrode 6 can be further increased. Therefore, the deterioration of the characteristics and the short circuit between the electrodes are less likely to occur.

  Note that the thickness of the partition 7 may be smaller than the average thickness of the photoelectric conversion layer 5.

  The thickness of the portion of the photoelectric conversion layer 5 located on the partition 7 in the stacking direction is preferably smaller than the average thickness of the other portions of the photoelectric conversion layer 5. As a result, even when burrs are generated in the photoelectric conversion layer 5, the burrs are unlikely to become large. Therefore, the burrs are less likely to reach the first electrode 4, and the characteristics of the solar cell module 1 are harder to deteriorate.

  More preferably, the thickness of the portion of the photoelectric conversion layer 5 located on the partition 7 in the stacking direction is preferably about 50% of the average thickness of the other portions of the photoelectric conversion layer 5. In this case, burrs are unlikely to increase, and power generation efficiency can be increased.

  As in the modification of the first embodiment shown in FIG. 5, the base member 23 may be made of a conductor. In this case, the plurality of solar cells 2 may be provided on the base material 23 with the insulating layer 28 interposed therebetween.

  FIG. 6 is a front sectional view of the solar cell module according to the second embodiment.

  The solar cell module 11 is different from the first embodiment in a portion where each solar cell 12 is connected to each other. Except for the above, the solar cell module 11 has the same configuration as the solar cell module 1 of the first embodiment.

  More specifically, the partition 17 exposed at the first end face 2 a of each solar cell 12 has a groove 17 a reaching the first electrode 4 of another solar cell 12. The photoelectric conversion layer 5 is not provided in the groove 17a. In the groove 17a, the second electrode 16 is provided in a portion where the first electrode 4 is exposed from the photoelectric conversion layer 5. Thus, the solar cells 12 are electrically connected to each other.

  As shown in FIGS. 7A and 7B below, in a manufacturing process for obtaining the solar cell module 11, a process of dividing a photoelectric conversion layer before division and a second electrode 16A before division are stacked. The steps are different from the method of manufacturing the solar cell module 1 of the first embodiment.

  FIGS. 7A and 7B are front cross-sectional views illustrating a method for manufacturing a solar cell module according to the second embodiment.

  As shown in FIG. 7A, in the step of dividing the photoelectric conversion layer before division, in a plan view, in the portion where the protrusion 17A and the photoelectric conversion layer before division overlap, the photoelectric conversion layer before division is divided. Divide the conversion layer. Thereby, the groove 17a is formed so as to reach the first electrode 4.

  At this time, the photoelectric conversion layer before the division of the portion where the groove 17a is formed and the protrusion 17A located below the photoelectric conversion layer before the division are removed. Therefore, in the groove 17a, the photoelectric conversion layer before the division can be more reliably removed.

  As shown in FIG. 7B, in the step of laminating the second electrode 16A before the division, the division before the division is performed so as to reach the first electrode 4 exposed from the photoelectric conversion layer 5 in the groove 17a. Is laminated.

  Returning to FIG. 6, since the photoelectric conversion layer before division is reliably removed from the groove 17a, the electric resistance of the connection between the first electrode 4 and the second electrode 16 is further reduced. Can be. Therefore, the electric resistance between the solar cells 12 can be reduced more reliably.

  In the manufacturing process, even when the electron transport layer before division is laminated between the photoelectric conversion layer before division and the protruding portion, the photoelectric conversion layer before division and the electron before division are formed when forming the groove. The portion where the transport layer and the protrusion are stacked is divided. Therefore, the photoelectric conversion layer before division and the electron transport layer before division can be reliably removed. Therefore, also in this case, the electrical resistance of the connection between the solar cells can be reduced more reliably.

DESCRIPTION OF SYMBOLS 1 ... Solar cell module 2 ... Solar cell 2a, 2b ... 1st, 2nd end surface 3 ... Base material 4 ... 1st electrode 4A ... 1st electrode 5 before division | segmentation ... Photoelectric conversion layer 5A ... Photoelectric before division | segmentation Conversion layer 6 Second electrode 6A Second electrode 7 before division 7 Partition 7A Projection 11 Solar cell module 12 Solar cell 16 Second electrode 16A Second electrode 17 before division ... partition 17A ... protruding part 17a ... groove 23 ... substrate 28 ... insulating layer

Claims (10)

A solar cell module in which a plurality of solar cells are electrically connected to each other,
A substrate,
A plurality of first electrodes provided on the substrate,
A plurality of second electrodes arranged so as to face the plurality of first electrodes, respectively;
A plurality of first electrodes, a plurality of photoelectric conversion layers disposed between the plurality of second electrodes,
A partition provided on the first electrode, having a length direction, and made of an insulator;
Each of the solar cells has the first electrode, the second electrode, and the photoelectric conversion layer, and each of the solar cells has first and second end faces facing each other,
At least two of the solar cells have the partition, the partition is disposed on at least one of the first and second end faces, and the photoelectric conversion layer extends over the partition. Is provided,
The solar cells having the partition portion are adjacent to each other, the partition portion of one of the adjacent solar cells, and the partition portion of the other solar cell of the adjacent solar cells. Are facing each other across the gap ,
A solar cell module, wherein the photoelectric conversion layer contains an organic-inorganic perovskite compound .   In the length direction of the partition, the partition extends from one end of the end face on which the partition is provided to the other end of the first and second end faces of the solar cell. Item 2. The solar cell module according to item 1.   The thickness of the partition wall as a dimension in a direction in which the first electrode, the photoelectric conversion layer, and the second electrode are stacked is larger than an average thickness of the photoelectric conversion layer. A solar cell module according to item 1.   The solar cell according to any one of claims 1 to 3, wherein an average thickness of a portion of the photoelectric conversion layer located on the partition portion is smaller than an average thickness of another portion in the photoelectric conversion layer. Battery module.   The solar cell according to any one of claims 1 to 4, wherein the second electrode of at least one solar cell extends over the first electrode of at least one adjacent solar cell. module. The partition has a groove reaching the first electrode, and the groove is not provided with the photoelectric conversion layer,
The solar cell module according to claim 5, wherein the second electrode of another solar cell reaches a portion where the first electrode is exposed from the photoelectric conversion layer. The partition wall is made of an insulating resin, the solar cell module according to any one of claims 1-6. A step of preparing a base material;
Providing a plurality of first electrodes on the base material;
Providing a plurality of protrusions made of an insulator and having a length direction on the plurality of first electrodes;
Stacking a photoelectric conversion layer before division on the plurality of first electrodes so as to cover the plurality of protrusions;
Dividing the photoelectric conversion layer before division into a plurality of photoelectric conversion layers so that the plurality of first electrodes are exposed from the photoelectric conversion layer before division,
Laminating a second electrode before division on portions of the first electrode exposed from the plurality of photoelectric conversion layers and the plurality of photoelectric conversion layers,
At a portion where the second electrode before the division, the protruding portion, and the photoelectric conversion layer are stacked, the second electrode before the division is divided into a plurality of second electrodes, and the plurality of protruding portions are formed. e Bei and a step of dividing the partition wall portion,
A method for manufacturing a solar cell module, wherein the photoelectric conversion layer before the division and the photoelectric conversion layer include an organic-inorganic perovskite compound . In the step of dividing the photoelectric conversion layer before the division, when viewed in a plan view, in a portion where the protrusion and the photoelectric conversion layer before the division overlap, the photoelectric conversion layer before the division is divided, and Forming a groove in the protruding portion so as to reach the first electrode;
In the step of laminating the second electrode before the division, the second electrode before the division is laminated so as to reach on the first electrode exposed from the plurality of photoelectric conversion layers in the groove. A method for manufacturing a solar cell module according to claim 8 . The protrusion is made of an insulating resin,
In the step of dividing the second electrode before division, the second electrode before division is divided by one of cutting by irradiation with laser light and mechanical cutting, and It is divided into the plurality of partition walls, the method for manufacturing the solar cell module according to claim 8 or 9.

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