JP2018147981A - Electric module and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric module capable of satisfactorily preventing the occurrence of an operation failure.SOLUTION: An electric module comprises: a first electrode 21 and a second electrode 22 opposed to the first electrode with a gap therebetween; and an electrolyte solution 15 provided between the first electrode 21 and the second electrode 22. The electrolyte solution 15 is sealed by a sealant 9 provided between the first electrode 21 and the second electrode 22 and a seal part arranged by bonding a first base material 1 of the first electrode 21 with a second base material 6 of the second electrode 22. The peel strength of the first electrode 21 and sealant 9, and the peel strength of the second electrode 22 and sealant 9 are each 0.05 kgf/10 mm or more.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electric module and a method for manufacturing the electric module.

  In recent years, solar cells that can directly and immediately convert light energy into electric power as a clean power generation source and that do not emit pollutants such as carbon dioxide have attracted attention. Among them, dye-sensitized solar cells are expected as next-generation solar cells because they have high conversion efficiency, are manufactured by a relatively simple method, and the unit price of raw materials is low.

  Recently, continuous production using a roll-to-roll method (hereinafter referred to as an RtoR method) has been studied for the practical application of solar cells including dye-sensitized solar cells. In the manufacture of a dye-sensitized solar cell using the RtoR method, for example, a first conductive film is provided on the second base material side surface of the first base material, and the second base material side surface of the first conductive film is provided. The semiconductor layer, the electrolyte, and the sealing material are provided in the predetermined region, and the first electrode is formed. Further, the second electrode is formed by providing the second conductive film on the surface of the second substrate on the first substrate side and providing the catalyst layer on the surface of the second conductive film on the first substrate side. The Thereafter, the first electrode and the second electrode are bonded together with the semiconductor layer and the catalyst layer facing each other. The dye-sensitized solar cell thus manufactured is insulated at a desired position and cut out to a desired size in accordance with the purpose of use of the dye-sensitized solar cell.

  For example, in Patent Document 1, ultrasonic vibration is applied to predetermined portions of the first electrode and the second electrode facing each other, and a seal portion is formed by welding the first base material and the second base material, A method of manufacturing an electric module having a step of sealing and insulating predetermined portions of the first electrode and the second electrode is disclosed.

International Publication No. 2014/0303076

  In the manufacture of electrical modules such as dye-sensitized solar cells using the RtoR method, a sealing material such as poly (3,4-ethylenedioxythiophene (PEDOT) doped with p-toluenesulfonic acid as a catalyst layer In such a case, if a predetermined portion of the first electrode and the second electrode is sealed and insulated by ultrasonic fusion as disclosed in Patent Document 1, In some cases, malfunction of the dye-sensitized solar cell may occur.

  The present inventor has conducted an intensive study, superposing the first electrode and the second electrode in a state where the semiconductor layer and the catalyst layer are opposed to each other, and applying ultrasonic vibration, thereby sealing the ultrasonic wave application portion. It was noted that was pushed out of the ultrasonic wave application part. Further, the present inventor presses the sealing material extruded from the ultrasonic wave application portion against the sealing material adjacent to the ultrasonic wave application portion or the first electrode and the second electrode that are in close contact with the sealing material. At the same time, attention was paid to the fact that the sealing material adjacent to the ultrasonic wave application portion and the interface between the first electrode and the second electrode are easily pushed into. And this inventor is the sealing material and 1st electrode because the sealing material adjacent to an ultrasonic application part peels from a 1st electrode / 2nd electrode by the sealing material extruded from the ultrasonic application part. / A gap is formed between the second electrode and the electrolytes adjacent to each other with the sealing material in between, or the electrolyte contacts the wiring between the sealing materials, resulting in malfunction of the dye-sensitized solar cell. Sealing adjacent to the ultrasonic wave application portion by bonding the sealing material and the structure adjacent to the sealing material (that is, the first electrode and the second electrode) with the knowledge that they occur and a peel strength of a predetermined level or more The inventors have found that the material can be prevented from peeling from the first electrode / second electrode, and have reached the present invention.

  The present invention has been made in view of the above-described circumstances, and provides an electrical module and a method for manufacturing the electrical module that can prevent occurrence of malfunctions.

  An electrical module according to the present invention includes a first electrode, a second electrode facing the first electrode with a space therebetween, and an electrolyte provided between the first electrode and the second electrode. The first electrode includes a first base material, a first conductive film provided on the second electrode side surface of the first base material, and a second electrode side surface of the first conductive film. A semiconductor layer provided in the semiconductor layer arrangement region, wherein the second electrode is a second base material, and a second conductive film provided on the first electrode side surface of the second base material, A catalyst layer provided on at least a part of the surface of the second conductive film on the first electrode side, and the electrolyte is provided between the first electrode and the second electrode. Sealed by a sealing portion in which the stopper and the first base material and the second base material are bonded together, the first electrode and the Peel strength between the peel strength and the second electrode and the sealing material between the sealing material is characterized in that at 0.05 kgf / 10 mm or more.

  According to the above configuration, since the peel strength between the first electrode and the sealing material and the peel strength between the second electrode and the sealing material are 0.05 kgf / 10 mm or more, the sealing material is the first electrode and the first electrode. The two electrodes are satisfactorily adhered, and the sealing material is difficult to peel off from the first electrode and the second electrode. Therefore, the sealing material extruded from the ultrasonic wave application portion to which ultrasonic waves are applied to form the seal portion is arranged along the first electrode and the second electrode at the portion adjacent to the ultrasonic wave application portion. Even if an attempt is made to push into the interface between the first electrode and the second electrode that is pressed from the direction and adjacent to the ultrasonic wave application portion, the sealing material and the first electrode / second electrode are separated or sealed. It becomes difficult to generate a gap between the material and the first electrode / second electrode. Therefore, it is possible to prevent the electrolytes adjacent to each other across the sealing material, and the electrolyte from contacting the wiring between the sealing materials, and prevent the malfunction of the dye-sensitized solar cell. it can.

  In the electric module described above, the catalyst layer may be provided on the entire surface of the second conductive film on the first electrode side.

  According to the above-described configuration, since the configuration of the surface on the first electrode side in the second conductive film is uniform, the manufacturing process of the second electrode is simplified, and the second electrode and the electric module can be easily obtained.

  In the electric module described above, the catalyst layer may not be provided on the seal portion.

  As the catalyst layer, for example, a material having a relatively low peel strength from the sealing material, such as poly (3,4-ethylenedioxythiophene) (PEDOT) doped with p-toluenesulfonic acid frequently used in electric modules. May be used. Even in such a case, according to the above-described configuration, since the catalyst layer is not provided in the seal portion, the sealing material is the first electrode and the second electrode (that is, the first conductive film and the second conductive material) in the seal portion. Film). Therefore, even if ultrasonic vibration is applied to the first electrode and the second electrode in the ultrasonic wave application portion, the sealing material of the ultrasonic wave application portion is difficult to peel off from the first electrode and the second electrode. It becomes difficult to be pushed out from the sound wave application portion. Therefore, the sealing material adjacent to the ultrasonic wave application portion is difficult to peel off from the first electrode and the second electrode, and the sealing material adjacent to the ultrasonic wave application portion is in good contact with the first electrode and the second electrode. State is maintained. Moreover, it becomes difficult to produce a space | gap between a sealing material, a 1st electrode, and a 2nd electrode.

  In the above electric module, the catalyst layer may not be provided at the position of the sealing material.

  According to the above-described configuration, the sealing material does not contact the catalyst layer, and thus can be satisfactorily adhered to the first electrode and the second electrode (that is, the first conductive film and the second conductive film). Therefore, a material having a relatively low peel strength from the sealing material is used as the material of the catalyst layer, and even if ultrasonic vibration is applied to the first electrode and the second electrode in the ultrasonic wave application portion, ultrasonic wave application is performed. The sealing material adjacent to the part sealing material and the ultrasonic wave application part is difficult to peel off from the first electrode and the second electrode, and the sealing material adjacent to the ultrasonic wave application part is separated from the first electrode and the second electrode. Good adhesion is maintained. Moreover, it becomes difficult to produce a space | gap between a sealing material, a 1st electrode, and a 2nd electrode.

  In the electric module described above, the width of the sealing material may be not less than 0.3 mm and not more than 7 mm.

  Generally, the smaller the width of the sealing material, the higher the frequency with which voids are formed between the sealing material and the first electrode and the second electrode, that is, the frequency with which electrolyte leakage occurs. On the other hand, if the width of the sealing material is sufficiently large, the degree of adhesion between the sealing material adjacent to the ultrasonic wave application portion and the first electrode and the second electrode is weakened by the sealing material extruded from the ultrasonic wave application portion. However, the close contact between the sealing material at the center in the width direction and the first conductive film / catalyst layer is maintained, and the possibility of malfunction of the dye-sensitized solar cell is reduced. According to the above-described configuration, even when the width of the sealing material is 0.3 mm or more and 7 mm or less, the peel strength between the first electrode and the sealant and the peel strength between the second electrode and the sealant are 0. Compared with the case where the thickness is less than 05 kgf / 10 mm, the sealing material is less likely to be peeled off from the first electrode and the second electrode, and the effect that voids are less likely to occur between the sealing material and the first electrode and the second electrode is enhanced. .

  An electrical module manufacturing method according to the present invention is an electrical module manufacturing method for manufacturing the above-described electrical module, wherein the second electrode is opposed to the first electrode with a gap therebetween, and the first electrode The step of providing the electrolyte in the electrolyte arrangement region on the second electrode side surface of the first conductive film is different from the electrolyte arrangement region on the second electrode side surface of the first conductive film of the first electrode. A step of providing a sealing material on the part, and bonding the first electrode and the sealing material together, bonding the second electrode and the sealing material, and peeling the first electrode and the sealing material The step of setting the strength and the peel strength between the second electrode and the sealing material to 0.05 kgf / 10 mm or more, and bonding the first base material and the second base material at a predetermined position to form the seal portion Forming a step, And wherein the Rukoto.

  According to the configuration described above, the peel strength between the first electrode and the sealing material and the peel strength between the second electrode and the sealing material are 0.05 kgf / 10 mm or more. Good contact with the two electrodes becomes possible. Therefore, as described above, the sealing material is hardly peeled off from the first electrode and the second electrode, and a gap is hardly generated between the sealing material and the first electrode and the second electrode. Therefore, it can prevent that electrolytes adjacent on both sides of a sealing material contact and the electrolyte contact the wiring between sealing materials, and can prevent the malfunction of a dye-sensitized solar cell.

  According to the electric module and the method for manufacturing the electric module according to the present invention, it is possible to satisfactorily prevent the occurrence of malfunction.

It is a top view which shows the structure of the electric module of 1st embodiment to which this invention is applied. It is a figure which shows the structure of the electric module of 1st embodiment to which this invention is applied, and is sectional drawing seen by the XA-XA line | wire shown in FIG. It is a figure which shows the structure of the electric module of 1st embodiment to which this invention is applied, and is sectional drawing seen by the arrow at the YY line shown in FIG. It is a schematic side view of the electric module manufacturing apparatus of the first embodiment to which the present invention is applied. It is a perspective view which shows the state before performing the insulation process in the manufacturing method of the electric module of 1st embodiment to which this invention is applied. It is sectional drawing which shows the state before performing the insulation process in the manufacturing method of the electric module of 1st embodiment to which this invention is applied. It is sectional drawing which shows the state in the middle of performing the insulation process in the manufacturing method of the electric module of 1st embodiment to which this invention is applied. It is a top view which shows the structure of the electric module of 2nd embodiment to which this invention is applied. It is a figure which shows the structure of the electric module of 2nd embodiment to which this invention is applied, and is sectional drawing seen from the XB-XB line | wire shown in FIG.

  Embodiments of an electric module and an electric module manufacturing method to which the present invention is applied will be described below with reference to the drawings. The drawings used in the following description are schematic, and the length, width, thickness ratio, and the like are not necessarily the same as actual ones, and can be changed as appropriate.

Hereinafter, as an example of the electric module according to the present invention, a film type dye-sensitized solar cell manufactured using the RtoR method will be described and described.
The electric module to which the present invention is applied is not limited to a dye-sensitized solar cell, and a predetermined two electrodes are bonded to each other with a sealing material interposed therebetween. Any electrical module other than the dye-sensitized solar cell may be used as long as the insulation treatment is performed by applying force or pressing. In addition, the electrical module according to the present invention is not limited to one manufactured using the RtoR method, that is, continuously manufactured while transporting the base material in a predetermined direction. This includes a cell structure formed every time.

(First embodiment)
[Configuration of electrical module]
As shown in FIGS. 1 and 2, a dye-sensitized solar cell (electric module) 20 </ b> A according to the first embodiment to which the present invention is applied has a first electrode 21 and a first electrode 21 facing the first electrode 21 with a gap. A two-electrode 22, a sealing material 9 provided between the first electrode 21 and the second electrode 22, and an electrolytic solution (electrolyte) 15 are provided.

  The first electrode 21 includes the first base material 1, the first conductive film 3 provided on the surface 1 a on the second electrode 22 side of the first base material 1, and the second electrode 22 side of the first conductive film 3. And a semiconductor layer 10 provided on the surface 3a.

  The first base material 1 is a member that serves as a base for the first conductive film 3, the wiring 7, and the sealing material 9. The 1st base material 1 will not be specifically limited if it has the moderate softness | flexibility applicable to the continuous production of the solar cell using a RtoR system, and can be formed in a large area film form. Examples of the first substrate 1 include transparent resin materials such as polyethylene terephthalate (PET), acrylic, polycarbonate, polyethylene naphthalate (PEN), and polyimide.

  The first conductive film 3 is formed over the entire surface 1 a on the second electrode 22 side of the first base material 1. Examples of the first conductive film 3 include tin oxide (ITO) and zinc oxide. In addition, according to the structure of the dye-sensitized solar cell to be manufactured, the surface 1a on the second electrode 22 side of the first base material 1 may be appropriately subjected to insulation treatment. The first conductive film 3 and the above-described insulation treatment may be formed discontinuously along the surface 1a on the second electrode 22 side of the first base material 1.

  The semiconductor layer 10 is formed in the electrolyte arrangement region R1 of the surface 3a on the second electrode 22 side in the first conductive film 3. Electrolyte arrangement | positioning area | region R1 is provided at intervals in the conveyance direction (predetermined direction) P1 of the 1st base material 1, and the width direction P2 in the 1st base material 1 orthogonal to the conveyance direction P1. Hereinafter, in the transport direction P1, the start point side is described as the upstream side, and the end point side is described as the downstream side.

The semiconductor layer 10 is formed in a so-called dyed state by, for example, supporting a sensitizing dye on a porous layer made of a metal oxide having a function of receiving and transporting electrons from the sensitizing dye. Examples of such metal oxides include titanium oxide (TiO ₂ ), zinc oxide (ZnO), and tin oxide (SnO ₂ ).

  The above-described sensitizing dye is composed of an organic dye or a metal complex dye. Examples of organic dyes include various organic dyes such as coumarin, polyene, cyanine, hemicyanine, and thiophene. Examples of the metal complex dye include a ruthenium complex.

  The second electrode 22 includes the second base 6, the second conductive film 8 provided on the first electrode 21 side surface 6 a of the second base 6, and the first electrode 21 side of the second conductive film 8. And a catalyst layer 16 provided on at least a part of the surface 8a.

  The second substrate 6 is a member that becomes a base for the second conductive film 8 and the catalyst layer 16. As with the first base material 1, the second base material 6 has an appropriate flexibility that can be applied to continuous production of solar cells using the RtoR method, and is particularly a material that can be formed into a large-area film. It is not limited. As the 2nd base material 6, the resin material similar to the 1st base material 1 is mentioned.

  The second conductive film 8 is formed over the entire surface 6 a on the first electrode 21 side of the second base material 6. Examples of the second conductive film 8 include the same compounds as the first conductive film 3. In addition, according to the structure of the dye-sensitized solar cell to be manufactured, the surface 6a on the first electrode 21 side of the second base material 6 may be appropriately subjected to insulation treatment. In addition, the second conductive film 8 and the above-described insulation treatment may be formed discontinuously along the surface 6 a on the first electrode 21 side in the second base material 6.

  The catalyst layer 16 is formed over the entire surface 8 a of the second conductive film 8 on the first electrode 21 side. Examples of the catalyst layer 16 include PEDOT, platinum, ITO, polyaniline, and carbon.

  In the width direction P <b> 2, the region R <b> 2 different from the electrolyte disposition region R <b> 1 is spaced from each other so as to be adjacent to the semiconductor layer 10 provided on the surface 3 a on the second electrode 22 side of the first conductive film 3 of the first electrode 21. Sealing materials 9, 9 are provided. The width of the sealing material 9 is appropriately set in consideration of the width of the electrolyte arrangement region R1, the material of the sealing material 9, and the like, but is preferably 0.3 mm or more and 7 mm or less, for example, 5 mm or less. More preferably. When the width of the sealing material 9 is 0.3 mm or more, the adjacent electrolytic solution 15 and the wiring 7 are favorably separated with the sealing material 9 interposed therebetween in the width direction P2. Moreover, the enlargement of 20 A of dye-sensitized solar cells is suppressed because the width | variety of the sealing material 9 is 7 mm or less.

  The sealing material 9 includes a resin or the like for bonding and bonding the first electrode 21 and the second electrode 22 together. Examples of the sealing material 9 include a resin material including at least one of a thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin. In addition, the material which comprises the sealing material 9 considering that the peeling strength of the 1st electrode 21 and the sealing material 9 and the peeling strength of the 2nd electrode 22 and the sealing material 9 shall be 0.05 kgf / 10mm or more. Is preferably determined in accordance with the respective materials of the first conductive film 3 and the catalyst layer 16 that are in close contact with the sealing material 9.

  In the width direction P2, wirings 7 are provided between the sealing materials 9 arranged in the region R2. The wiring 7 is a conductive structure for connecting a plurality of cell structures C including the semiconductor layer 10 and the catalyst layer 16. The wiring 7 is not particularly limited as long as it is a conductive material, and examples thereof include a known conductive material, conductive paste, a mixture of conductive fine particles and an adhesive. Note that a binder made of the same material as the sealing material 9 may be used for the wiring 7. From the viewpoint of easily cutting the wiring 7 when the dye-sensitized solar cell 20A is cut out in a desired pattern, as the wiring 7, for example, an appropriate amount of conductive particles is mixed in an adhesive such as epoxy resin or phenol resin. Conductive paste is preferred.

The dye-sensitized solar cell 20A is provided with a seal portion 25 in which the first electrode 21 and the second electrode 22 are bonded together.
As shown in FIG. 3, the seal portion 25 applies a force in the thickness direction from the outside of the first electrode 21 and the second electrode 22 using a method such as ultrasonic fusion, for example, as in ultrasonic fusion. Or the first base material 1 and the second base material 6 are directly pressed and electrically insulated by pressing. In addition, although not shown in figure, between the 1st base material 1 and the 2nd base material 6, the 1st electrically conductive film 3, the 2nd electrically conductive film 8, the semiconductor layer 10, electrolyte solution (electrolyte) 15, and a catalyst slightly Although the layer 16 may be interposed, these are divided at the seal portion 25 and do not connect the spaces S adjacent to the seal portion 25.

An electrolyte solution (electrolyte) 15 is sealed in the space S of the electrolyte arrangement region R1 surrounded by the sealing material 9 and the seal portion 25.
Examples of the electrolytic solution 15 include a solution in which a supporting electrolyte such as lithium iodide and iodine are mixed in a liquid component such as ionic liquid such as acetonitrile, dimethylpropylimidazolium iodide, or butylmethylimidazolium iodide (specifically, Specifically, non-aqueous solvents such as propionitrile).

In the dye-sensitized solar cell 20 </ b> A, the surface 9 a on the second electrode 22 side in the sealing material 9 abuts on the surface 16 a on the first electrode 21 side in the catalyst layer 16, and the surface on the first electrode 21 side in the sealing material 9. 9b is in contact with the surface 3a of the first conductive film 3 on the second electrode 22 side.
The peel strength between the first conductive film 3 and the sealing material 9 of the first electrode 21 and the peel strength between the catalyst layer 16 and the sealing material 9 of the second electrode 22 are at least 0.05 kgf / 10 mm to 1 kgf / 10 mm. It is preferably 0.1 kg / 10 mm or more and 1 kgf / 10 mm or less, and more preferably 0.2 kg / 10 mm or more and 1 kgf / 10 mm or less. When the peel strength between the first conductive film 3 and the sealing material 9 of the first electrode 21 and the peel strength between the catalyst layer 16 and the sealing material 9 of the second electrode 22 are 0.05 kgf / 10 mm or more, Even when sonic fusion is performed, the sealing material can be prevented from being broken or peeled off in the vicinity of the portion to be fused. Further, when the peel strength between the first conductive film 3 and the sealing material 9 of the first electrode 21 and the peel strength between the catalyst layer 16 and the sealing material 9 of the second electrode 22 are larger than 0.05 kgf / 10 mm, the sealing is performed. There is a possibility that the hardness of the stopper increases and the flexibility is impaired, or the first conductive film 3 and the like may be damaged when the dye-sensitized solar cell 20A is bent.

[Manufacturing method of electrical module]
The manufacturing method of the electric module to which the present invention is applied is continuous along the predetermined direction P3 with the first electrode 21 continuously conveyed along the predetermined direction P1 using the manufacturing apparatus 30 illustrated in FIG. It is a manufacturing method of 20 A of dye-sensitized solar cells which can be manufactured by bonding together the 2nd electrode 22 conveyed automatically.

In the method of manufacturing the dye-sensitized solar cell 20A, the second electrode 22 is opposed to the first electrode 21 with a space therebetween, and the electrolyte arrangement of the surface 3a on the second electrode 22 side of the first conductive film 3 of the first electrode 21 is arranged. A step of providing the electrolytic solution 15 in the region R1, a step of providing a sealing material in a region R2 different from the electrolyte arrangement region R1 of the surface 3a on the second electrode 22 side of the first conductive film 3 of the first electrode 21, The first electrode 21 and the second electrode 22 are overlapped, the first electrode 21 and the sealing material 9 are bonded together, the second electrode 22 and the sealing material 9 are bonded together, and the first electrode 21 and the sealing material 9 are bonded together. And the step of setting the peel strength between the second electrode 22 and the sealing material 9 to 0.05 kgf / 10 mm or more, and bonding the first base material 1 and the second base material 6 at a predetermined position F25 And a step of forming the seal portion 25.
Hereinafter, each process described above will be described with reference to FIG.

  First, using a device using an RtoR method (not shown), the first substrate 1 is conveyed by a known sputtering method or printing method while continuously conveying the first substrate 1 along a predetermined direction. The first conductive film 3 is formed on the surface 1a facing the second electrode 22 along a predetermined direction P1. Subsequently, oxidation is performed in the electrolyte arrangement region R1 of the surface 3a facing the second electrode 22 along the predetermined direction P1 in the first conductive film 3 by a known aerosol deposition method (Aerosol Deposition method: AD method) or the like. A porous layer made of a metal oxide such as titanium is formed. Furthermore, the semiconductor layer 10 is formed by carrying a sensitizing dye on the porous layer. In this way, the first base material 1 in which the first conductive film 3 and the semiconductor layer 10 are formed in each predetermined region of the surface 1a is wound up in a roll shape with the surface 1a facing outward, One electrode 21 is used.

  Using a device using an RtoR system (not shown), separately from the roll-shaped first electrode 21, while continuously transporting the second substrate 6 along a predetermined direction, a known sputtering method or By the printing method or the like, the catalyst layer 16 is formed on the entire surface 6a facing the first electrode 21 along the predetermined direction P3 in the second substrate 6, and the surface 6a is wound in a roll shape with the surface 6a facing inward. The second electrode 22 is a roll.

  As shown in FIG. 4, the roll-shaped 1st electrode 21 is installed in the manufacturing apparatus 30, the 1st electrode 21 is unwound in the predetermined | prescribed direction P1, and with respect to the 1st electrically conductive film 3 of the unwound 1st electrode 21 Apply insulation treatment if necessary.

  Next, the transport roll 46 is applied to the surface 1b of the first electrode 21 opposite to the surface 1a of the first substrate 1, and the first electrode 21 is transported along a predetermined direction P1. The electrolyte solution 15 is discharged at an appropriate flow rate taking into consideration the viscosity of the electrolyte solution 15, the conveyance speed of the first substrate 1, and the like, from the application port of the electrolyte solution application device 32 disposed so as to face the conveyance roll 46. The electrolyte solution 15 is applied to the electrolyte arrangement region R1 including the semiconductor layer 10 provided on the surface 3a side of the first conductive film 3 on the second electrode 22 side.

  Next, the first electrode 21 transported along the predetermined direction P1 is appropriately taken into account from the coating port of the sealing material coating device 34, for example, the viscosity of the sealing material 9 and the transport speed of the first electrode 21. The sealing material 9 is discharged at a high flow rate, and the sealing material 9 is applied to a predetermined region R2 of the surface 3a on the second electrode 22 side of the first conductive film 3 of the first electrode 21.

  Next, from the wiring material discharge port of the wiring forming device 36 to the first electrode 21 transported along the predetermined direction P1, the appropriateness considering the viscosity of the wiring material, the transport speed of the first base material 1, and the like are taken into account. The wiring material is discharged at a flow rate, and the wiring 7 is formed in a predetermined region of the first base material 1.

  Next, the roll-shaped second electrode 22 is installed in the manufacturing apparatus 30, the second electrode 22 is unwound in a predetermined direction P3, and the second conductive film 8 and the catalyst layer 16 of the unwound second electrode 22 are removed. Apply insulation treatment if necessary.

  Next, the electrolyte solution 15, the sealing material 9, and the wiring 7 are provided along the substantially horizontal direction P1 between the 1st press roll 60 and the 2nd press roll 62 arrange | positioned below. While introducing the electrode 21, the 2nd electrode 22 is introduce | transduced from the diagonally upward direction P3, and the 1st electrode 21 and the 2nd electrode 22 are piled up. Subsequently, the overlapped first electrode 21 and second electrode 22 are passed between the first pressing roll 60 and the second pressing roll 62 to press the first electrode 21 and the second electrode 22 together.

  The sealing material 9 is cured by a method such as irradiating the pressed first electrode 21 and the second electrode 22 with ultraviolet rays using a UV lamp (not shown) or the like to seal the first electrode 21 and the second electrode 22. The material 9 is bonded together, and the second electrode 22 and the sealing material 9 are bonded together. At this time, the peel strength between the first electrode 21 and the sealing material 9 and the peel strength between the second electrode 22 and the sealing material 9 are set to 0.05 kgf / 10 mm or more and 1 kgf / 10 mm or less. As described above, the peel strength between the first electrode 21 and the sealing material 9 and the peel strength between the second electrode 22 and the sealing material 9 are preferably 0.1 kg / 10 mm or more and 1 kgf / 10 mm or less, More preferably, it is 0.2 kg / 10 mm or more and 1 kgf / 10 mm or less.

From the position where the first electrode 21 and the second electrode 22 and the sealing material 9 are bonded together, the ultrasonic waves for applying ultrasonic waves to the bonded first electrode 21 and second electrode 22 are provided downstream. A providing unit 71 and a pedestal 72 facing the ultrasonic wave applying unit 71 are arranged. The ultrasonic wave imparting unit 71 has, for example, a taper shape toward the tip (that is, a portion that can contact the second electrode 22). As shown in FIG. 6, a plurality of projections and depressions are formed on the distal end portion 71 a of the ultrasonic wave application portion 71 in a cross-sectional view in the thickness direction. The pedestal 72 is formed to have substantially the same size as the tip of the ultrasonic wave application unit 71. A plurality of projections and depressions are formed in a cross-sectional view in the thickness direction at the distal end portion 72a (that is, a portion capable of contacting the first electrode 21) facing the ultrasonic wave application portion 71 in the pedestal 72.
The ultrasonic wave imparting unit 71 is disposed so as to be able to approach and separate from the pedestal 72. Moreover, the unevenness | corrugation of the front-end | tip part 71a of the ultrasonic provision part 71 and the unevenness | corrugation of the front-end | tip part 72a of the base 72 are substantially the same shapes, and it can mesh | engage now.

  After bonding the first electrode 21 and the second electrode 22 and the sealing material 9, at the predetermined positions F25,..., F25 (see FIG. 1), that is, the bonded first electrode 21 and second electrode. As shown in FIGS. 5 and 6, the ultrasonic wave application unit 71 is placed on the base at the boundary that divides the space formed in the electrolyte arrangement region R1 by 22 into a plurality of cells C,..., C along a predetermined direction P1. The ultrasonic vibration is applied to the bonded first electrode 21 and second electrode 22 from the surface 6 b of the second base 6 of the second electrode 22.

  When ultrasonic vibration is applied as described above, as shown in FIG. 7, the first conductive film 3, the semiconductor layer 10, and the sealing material 9 provided between the first base material 1 and the second base material 6. The wiring 7, the second conductive film 8, and the catalyst layer 16 are moved by ultrasonic vibration. For example, if the first conductive film 3, the semiconductor layer 10, the sealing material 9, the wiring 7, the second conductive film 8, and the catalyst layer 16 have relatively low melting points, they themselves melt by ultrasonic vibration, It moves away from the position where it was originally placed by the horn pressure. Further, if there is a rigid body such as a metal among the first conductive film 3, the semiconductor layer 10, the sealing material 9, the wiring 7, the second conductive film 8, and the catalyst layer 16, the rigid body is destroyed by ultrasonic vibration, If the destroyed particle size is relatively small, it will diffuse (move). As a result, the structure including the sealing material 9 provided between the first base material 1 and the second base material 6 is extruded to a portion adjacent to the ultrasonic wave application portion, and the sealing material 9 is As shown in FIG. 3, the first substrate 1 has a surface 1a on the second electrode 22 side and a surface 6a on the first electrode 21 side in the second substrate 6 as shown in FIG. Touch. And the 1st base material 2 and the 2nd base material 6 fuse | melt by ultrasonic vibration, and it mutually welds, The uneven | corrugated shape substantially the same as each unevenness | corrugation of the front-end | tip part 71a of the ultrasonic provision part 71 and the front-end | tip part 72a of the base 72 The seal part 25 having the cross-sectional shape is formed. Further, a plurality of cells C,..., C surrounded by the sealing material 9 and the seal portion 25 and divided from each other are formed.

  Through the above steps, the dye-sensitized solar cell 20A shown in FIGS. 1 to 3 can be manufactured. Thereafter, if necessary, the dye-sensitized solar cell actually used in a desired pattern may be cut out from the dye-sensitized solar cell 20A.

  In the method for manufacturing the dye-sensitized solar cell 20A and the dye-sensitized solar cell 20A according to the first embodiment described above, for example, the first electrode 21 and the second electrode 22 such as the first conductive film 3 and the catalyst layer 16 respectively. The material constituting the sealing material 9 is appropriately selected so that the peel strength with the material is satisfactorily high, or the conditions for bonding the first electrode 21 and the second electrode 22 to the sealing material 9 are appropriate. Is selected, the peel strength between the first electrode 21 and the sealing material 9 and the peel strength between the second electrode 22 and the sealing material 9 are set to 0.05 kgf / 10 mm or more. Thereby, the sealing material 9 is difficult to peel from the first electrode 21 and the second electrode 22. Therefore, when the seal portion 25 is formed, when an ultrasonic wave is applied to the first electrode 21 and the second electrode 22, the sealing material 9 pushed out from the ultrasonic wave applying portion as shown in FIG. The portion of the sealing material 9 adjacent to the sound wave applying portion is pressed from the direction along the first electrode 21 and the second electrode 22, and the sealing material 9 adjacent to the ultrasonic wave applying portion, the first electrode 21 and the second electrode. Even if an attempt is made to push into the interface with the electrode 22, the separation between the sealing material 9 and the first electrode 21 / second electrode 22 is prevented, and between the sealing material 9 and the first electrode 21 / second electrode 22. It is possible to prevent the generation of voids. Therefore, the electrolytic solutions 15 of the cells C and C adjacent to each other with the seal portion 25 in between are prevented from contacting each other, and the electrolytic solution 15 is prevented from contacting the wiring 7 between the sealing materials 9. Generation | occurrence | production can be prevented favorably.

  Moreover, in the dye-sensitized solar cell 20A of the first embodiment, the catalyst layer 16 is provided on the entire surface 8a of the second conductive film 8 on the first electrode 21 side. The configuration of the surface 8a on the electrode 21 side is complete, the patterning of the catalyst layer 16 is not necessary, the manufacturing process of the second electrode 22 is simplified, and the second electrode 22 and the dye-sensitized solar cell 20A can be easily formed. Can be obtained.

  In the dye-sensitized solar cell 20A of the first embodiment, if the width of the sealing material 9 is 0.3 mm or more and 7 mm or less, the first electrode 21 and the second electrode 22 and the sealing material are obtained by the above-described effects. The frequency with which gaps are formed between the cells 9, that is, the frequency with which the electrolyte solution 15 leaks and leaks, is suppressed, the electrolyte solution 15 is reliably sealed in each of the plurality of cells C, and the dye-sensitized solar cell The area occupied by the plurality of cells C with respect to the entire area of the battery 20A can be increased.

(Second embodiment)
Next, a dye-sensitized solar cell (electric module) 20B according to a second embodiment to which the present invention is applied will be described with reference to FIGS. In addition, in the component of the dye-sensitized solar cell 20B of the second embodiment shown in FIGS. 8 and 9, the same component as the component of the dye-sensitized solar cell 20A of the first embodiment described above is the same. The description is omitted.

[Configuration of electrical module]
The dye-sensitized solar cell 20B includes the same components as the dye-sensitized solar cell 20A.
However, in the dye-sensitized solar cell 20 </ b> B, the catalyst layer 16 is not provided in the seal portion 25 and is not provided in the position of the sealing material 9. That is, as shown in FIG. 9, the catalyst layer 16 is provided at the same position as the plurality of cells C,..., C surrounded by the sealing material 9 and the seal portion 25.

Therefore, the surface 9a on the second electrode 22 side of the sealing material 9 is in contact with the surface 8a on the first electrode 21 side of the second conductive film 8, and the surface 9b on the first electrode 21 side of the sealing material 9 is the first surface 9b. The conductive film 3 is in contact with the surface 3a on the second electrode 22 side. The peel strength between the first conductive film 3 and the sealing material 9 of the first electrode 21 and the peel strength between the second conductive film 8 and the sealant 9 of the second electrode 22 are 0.05 kgf / 10 mm or more. Yes.
In addition, the material which comprises the sealing material 9 considering that the peeling strength of the 1st electrode 21 and the sealing material 9 and the peeling strength of the 2nd electrode 22 and the sealing material 9 shall be 0.05 kgf / 10mm or more. Is preferably determined in accordance with the materials of the first conductive film 3 and the second conductive film 8 that are in close contact with the sealing material 9.

[Manufacturing method of electrical module]
In the method for manufacturing the dye-sensitized solar cell 20B shown in FIGS. 8 and 9, the second substrate 6 is continuously conveyed along the predetermined direction while the second substrate 6 is continuously conveyed along the predetermined direction P1. The method is the same as the method for manufacturing the dye-sensitized solar cell 20B except that the catalyst layer 16 is formed not in the entire surface 6a facing the first electrode 21 but in the electrolyte arrangement region R1 excluding the region where the seal portion 25 is formed. is there.

  According to the dye-sensitized solar cell 20B and the method for manufacturing the dye-sensitized solar cell 20B of the second embodiment described above, the catalyst layer 16 is not provided on the seal portion 25. Is in good contact with the first conductive film 3 of the first electrode 21 and the second conductive film 8 of the second electrode 22. Therefore, even when a material having a relatively low peel strength from the sealing material 9 is used as the catalyst layer 16, for example, PEDOT frequently used in electric modules, the first electrode 21 and the first electrode 21 in the ultrasonic wave application portion are used. When ultrasonic vibration is applied to the two electrodes 22, it is difficult for the sealing material 9 in the ultrasonic wave application portion to be peeled off from the first electrode 21 and the second electrode 22, and it is difficult to be pushed out from the ultrasonic wave application portion. be able to. In this way, the formation position of the catalyst layer 16 is appropriately selected, and the component bonded to the sealing material 9 is made to have a peel strength of 0.05 kgf / 10 mm or more from the sealing material 9. The sealing material 9 adjacent to the sound wave application portion is difficult to peel from the first electrode 21 and the second electrode 22. Thereby, the state in which the sealing material 9 adjacent to the ultrasonic wave application portion is in good contact with the first electrode 21 and the second electrode 22 is easily maintained, and the sealing material 9, the first electrode 21, and the second electrode 22 are easily maintained. It is possible to prevent a gap from being generated between the two.

  Moreover, according to the manufacturing method of the dye-sensitized solar cell 20B and the dye-sensitized solar cell 20B of the second embodiment, since the catalyst layer 16 is not provided at the position of the sealing material 9, the sealing material 9 is a catalyst. The first electrode 21 and the second electrode 22 (that is, the first conductive film 3 and the second conductive film 8) can be satisfactorily adhered to each other along the predetermined direction P1 without contacting the layer 16. Therefore, even when a material having a relatively low peel strength from the sealing material 9 such as PEDOT is used as the catalyst layer 16 as described above, ultrasonic vibration is applied to the first electrode 21 and the second electrode 22. When applied, the sealing material 9 in the ultrasonic application portion and the sealing material 9 adjacent to the ultrasonic application portion are difficult to peel off from the first electrode 21 and the second electrode 22 and are adjacent to the ultrasonic application portion. It is possible to easily maintain the state in which the sealing material 9 to be adhered is in good contact with the first electrode 21 and the second electrode 22. Moreover, it can prevent that a space | gap arises between a sealing material, a 1st electrode, and a 2nd electrode.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments, and various modifications are possible within the scope of the gist of the present invention described in the claims. Deformation / change is possible.

  For example, in any of the above-described embodiments, the catalyst layer 16 is not provided at the position of the sealing material 9. However, in the dye-sensitized solar cell according to the present invention, the catalyst layer 16 is provided in the vicinity of the seal portion 25. It is important that the catalyst layer 16 is not provided, and the catalyst layer 16 may be provided somewhat at the position of the sealing material 9 as long as the electrolyte 15 does not leak and leak. The above-mentioned “vicinity” represents a range within a distance of 3 mm, more preferably within a distance of 1 mm, and even more preferably within a distance of 0.5 mm from the fused end of the seal portion 25.

  For example, the method of forming the seal portion 25 may be a method other than ultrasonic fusion by applying ultrasonic waves to the first electrode 21 and the second electrode 22 bonded as described above. Bonding, vacuum bonding, thermal fusion, laser fusion, or the like may be used. In the electric module and the method for manufacturing the electric module to which the present invention is applied, the sealing material 9 extruded from the portion where the seal portion 25 is formed in the bonded first electrode 21 and second electrode 22 forms the seal portion 25. This is widely applied when there is a possibility that the sealing material 9 in the portion adjacent to the portion is pressed to cause the first electrode 21 / second electrode 22 and the sealing material 9 to peel off.

  In the electric module and the method for manufacturing the electric module to which the present invention is applied, the peel strength between the first electrode 21 and the sealing material 9 and the peel strength between the second electrode 22 and the sealing material 9 are 0 as described above. .05 kgf / 10 mm or more as long as the second conductive film 8 and the sealing material 9 are formed in a predetermined region R2 of the surface 8a of the second conductive film 8 of the second electrode 22 on the first electrode 21 side. There may be provided an adhesive or other constituent element having a peel strength of at least 0.05 kgf / 10 mm or more.

  The present invention can be used in the field of electrical modules such as dye-sensitized solar cells.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further more concretely, this invention is not limited to a following example.

Example 1
The dye-sensitized solar cell 20A was manufactured using the material shown next using the manufacturing method of the dye-sensitized solar cell 20A of the first embodiment.
* First substrate and second substrate: PET
* First conductive film and second conductive film ... ITO
* Semiconductor layer ... Porous layer made of titanium oxide * Catalyst layer ... Platinum * Electrolytic solution ... Non-aqueous solvent such as propionitrile * Sealant ... Hot melt resin B
In Example 1, the width of the sealing material is 1 mm and the thickness of the sealing material is 40 μm, and the peel strength between the first conductive film and the sealant and the peel strength between the catalyst layer and the sealant are 0. 0. It was set to 05 kgf (/ 10 mm).
In Example 1 and each of the following examples, the peel strength is determined based on a T-type peel strength test method, a T-shaped peel tester, a motorized stand (model number: MX2-500N-L, manufacturer: Imada Co., Ltd.) ), A digital force gauge (model number: ZTS-100N, manufacturer and distributor: Imada Co., Ltd.).
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 2)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Example 1 except that the material was changed to the following material.
* Catalyst layer ... PEDOT
* Sealing material: Hot melt resin C (model number: HMP-3, manufacturer: Toagosei Co., Ltd.)
In Example 2, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.08 kgf (/ 10 mm), the catalyst layer and the sealing material are sealed. The peel strength with the stopper was set to 0.05 kgf (/ 10 mm).
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 3)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Example 1 except that the material was changed to the following material.
* Sealing material: UV curable resin (Manufacturer: Kobayashi Co., Ltd.)
In Example 3, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.08 kgf (/ 10 mm), The peel strength with the stopper was 0.08 kgf (/ 10 mm).
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 4)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Example 1 except that the material was changed to the following material.
* Catalyst layer ... PEDOT
* Sealing material: UV curable resin (Manufacturer: Kobayashi Co., Ltd.)
In Example 4, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.08 kgf (/ 10 mm), and the catalyst layer and the sealing material are sealed. The peel strength with the stopper was set to 0.05 kgf (/ 10 mm).
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 5)
The dye-sensitized solar cell 20B of the second embodiment was manufactured using the following materials. However, the catalyst layer was formed on the whole other than the seal part in the second electrode.
* First substrate and second substrate: PET
* First conductive film and second conductive film ... ITO
* Semiconductor layer ... Porous layer made of titanium oxide * Catalyst layer ... Platinum * Electrolytic solution ... Non-aqueous solvent such as propionitrile * Sealant ... Hot melt resin B
In Example 5, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.05 kgf (/ 10 mm), and the catalyst layer and the sealing material are sealed. The peel strength with the stopper was set to 0.05 kgf (/ 10 mm).
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 6)
Using the same material as in Example 5, the dye-sensitized solar cell 20B of the second embodiment was manufactured under the same conditions as in Example 5 except that the catalyst layer was not formed at the position of the sealing material.
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 7)
A dye-sensitized solar cell 20A of the first embodiment was manufactured under the same conditions as in Example 1 except that the same material as in Example 1 was used and the width of the sealing material was 0.3 mm.
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Example 8)
A dye-sensitized solar cell 20 </ b> A of the first embodiment was manufactured under the same conditions as in Example 1 except that the sealing material shown below and the sealing material were the same as those in Example 1.
* Sealant: Epoxy adhesive (Model: EP001K, Manufacturer: Cemedine Co., Ltd.)
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

Example 9
A dye-sensitized solar cell 20A according to the first embodiment was manufactured under the same conditions as in Example 2 except that the sealing material shown below and the sealing material were used.
* Sealant: Epoxy adhesive (Model: EP001K, Manufacturer: Cemedine Co., Ltd.)
When the dye-sensitized solar cell 20A produced by ultrasonic fusion was observed, peeling of the sealing material and leakage of the electrolytic solution were not observed.

(Comparative Example 1)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Example 1 except that the material was changed to the following material.
* Encapsulant: Hot melt resin A (Product name: Hi Milan, manufacturer: Mitsui DuPont Polychemical Co., Ltd.)
In Comparative Example 1, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.03 kgf (/ 10 mm), and the catalyst layer and the sealing material are sealed. The peel strength from the stopper was 0.03 kgf (/ 10 mm).
When the manufactured dye-sensitized solar cell 20A was observed, peeling of the sealing material and leakage of the electrolytic solution were observed.

(Comparative Example 2)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Comparative Example 1 except that the material was changed to the following material.
* Catalyst layer ... PEDOT
In Comparative Example 2, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.03 kgf (/ 10 mm), and the catalyst layer and the sealing layer are sealed. The peel strength with the stopper was 0.02 kgf (/ 10 mm).
When the manufactured dye-sensitized solar cell 20A was observed, peeling of the sealing material and leakage of the electrolytic solution were observed.

(Comparative Example 3)
A dye-sensitized solar cell 20A of the first embodiment was manufactured using the same material as in Example 1 except that the material was changed to the following material.
* Catalyst layer ... PEDOT
* Sealant: Hot-melt resin B (model number: PPET2109, manufacturer: Toagosei Co., Ltd.)
In Comparative Example 3, the width of the sealing material is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 0.05 kgf (/ 10 mm), and the catalyst layer and the sealing material are sealed. The peel strength from the stopper was 0.03 kgf (/ 10 mm).
When the manufactured dye-sensitized solar cell 20A was observed, peeling of the sealing material and leakage of the electrolytic solution were observed.

(Comparative Example 4)
A dye-sensitized solar cell 20A of the first embodiment was manufactured under the same conditions as in Example 1 except that the same material as in Example 1 was used and the width of the sealing material was 0.2 mm.
When the manufactured dye-sensitized solar cell 20A was observed, peeling of the sealing material and leakage of the electrolytic solution were observed.

(Comparative Example 5)
Except for changing to the material shown below, the same material as in Comparative Example 1 was used, and an instantaneous adhesive (product name: Scotch-Weld, manufacturer: 3M) was provided between the catalyst layer and the sealing material. The dye-sensitized solar cell 20A of the embodiment was manufactured.
* Catalyst layer ... PEDOT
In Comparative Example 5, the width of the sealing material and the instantaneous adhesive is 1 mm, the thickness of the sealing material is 40 μm, the peel strength between the first conductive film and the sealing material is 1.1 kgf (/ 10 mm), The peel strength between the catalyst layer and the sealing material was 1.1 kgf (/ 10 mm).
When the produced dye-sensitized solar cell 20A was observed, destruction of the sealing material was observed, and an increase in resistance value was confirmed at the positions where the first conductive film and the second conductive film were formed.

 Table 1 shows the results of the examples and comparative examples described above.

 According to the evaluations of the respective examples and comparative examples described above, the peel strength between the first electrode and the sealing material and the peel strength between the second electrode and the sealing material are set to 0.05 kgf / 10 mm or more. In addition, the contact between the electrolytes adjacent to each other with the sealing material interposed therebetween, and the contact of the electrolyte to the wiring between the sealing materials are well prevented, and dye sensitization such as peeling of the sealing material and leakage of the electrolytic solution is performed. It was confirmed that the malfunction of the solar cell can be prevented.

DESCRIPTION OF SYMBOLS 1 ... 1st base material, 6 ... 2nd base material, 9 ... Sealing material, 15 ... Electrolyte solution, 20A, 20B ... Dye-sensitized solar cell (electric module), 21 ... 1st electrode, 22 ... 2nd electrode , 25 ... Seal part

Claims (6)

A first electrode;
A second electrode facing the first electrode at an interval;
An electrolyte provided between the first electrode and the second electrode,
The first electrode includes a first base material, a first conductive film provided on the second electrode side surface of the first base material, and a semiconductor on the second electrode side surface of the first conductive film. A semiconductor layer provided in the layer arrangement region,
The second electrode includes at least a second base material, a second conductive film provided on the first electrode side surface of the second base material, and a first electrode side surface of the second conductive film. A catalyst layer provided in part,
The electrolyte is sealed by a sealing material provided between the first electrode and the second electrode, and a seal portion in which the first base material and the second base material are bonded together,
An electrical module, wherein a peel strength between the first electrode and the sealing material and a peel strength between the second electrode and the sealing material are 0.05 kgf / 10 mm or more.   The electric module according to claim 1, wherein the catalyst layer is provided on the entire surface of the second conductive film on the first electrode side.   The electric module according to claim 1, wherein the catalyst layer is not provided on the seal portion.   The electric module according to claim 1, wherein the catalyst layer is not provided at the position of the sealing material.   The electric module according to any one of claims 1 and 4, wherein a width of the sealing material is 0.3 mm or more and 7 mm or less. An electrical module manufacturing method for manufacturing the electrical module according to claim 1,
The second electrode is opposed to the first electrode with a gap therebetween,
Providing the electrolyte in an electrolyte arrangement region on a surface of the first electrode on the second electrode side in the first conductive film;
Providing a sealing material in a region different from the electrolyte arrangement region of the surface on the second electrode side in the first conductive film of the first electrode;
The first electrode and the sealing material are bonded together, the second electrode and the sealing material are bonded together, and the peel strength between the first electrode and the sealing material and the second electrode and the sealing A step of making the peel strength with the material 0.05 kgf / 10 mm or more,
Bonding the first base material and the second base material at a predetermined position to form the seal portion;
An electrical module manufacturing method comprising:

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