KR20210064540A - Shingled high power module and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a shingled high power module and a manufacturing method thereof, in which a rear wiring configuration can be more freely designed by electrically connecting a long band-shaped ribbon to an upper electrode in an edge region when manufacturing a solar cell module, and a separate ribbon is not exposed on a front side, thereby improving aesthetic sense. The method includes the steps of: (a) preparing a plurality of strings provided with an upper electrode and a lower electrode; (b) bonding a first ribbon or conductive tape to the upper electrodes of the plurality of strings; and (c) bonding a second ribbon or conductive tape to the lower electrodes of the plurality of strings. Each upper electrode of the plurality of strings is electrically connected in parallel by the first ribbon or conductive tape, each lower electrode of the plurality of strings is electrically connected in parallel by the second ribbon or conductive tape, and an end of the first ribbon or conductive tape is folded in a direction perpendicular to the longitudinal direction where the plurality of strings are arranged. Therefore, the first ribbon can be prevented from being broken, the electrical connection of a junction box can be performed without limitation, and the first ribbon is not exposed on the front side of the module, thereby improving the aesthetic sense.

Description

Shingled high power module and manufacturing method thereof

The present invention relates to a shingled high-power module to which a shingled solar cell array is applied and a method for manufacturing the same. In particular, when manufacturing a solar cell module, a long band-shaped ribbon is electrically connected to an upper electrode in an edge region to connect the back surface The present invention relates to a shingled high-power module capable of designing a wiring configuration more freely, and not exposing a separate ribbon on the front side, thereby enhancing aesthetics, and a method for manufacturing the same.

In recent years, the use of fossil fuels as an energy source tends to decrease. For example, it has long been recognized that the use of fossil fuel-based energy options such as oil, coal and natural gas creates gas and that pollution cannot be easily removed from the atmosphere. Not only that, as more and more fossil fuel-based energy is consumed, more pollutants are released into the atmosphere with detrimental effects on nearby life. Despite these results, fossil fuel-based energy options are still being depleted at a rapid rate, resulting in rising costs of some of these fossil fuel resources, such as oil. Also, because many fossil fuel storage sites are located in politically unstable regions, the supply and cost of fossil fuels have become unpredictable.

To solve this problem, the popularity of solar energy, a form of clean energy, is increasing. In addition, due to advances in semiconductor technology, it has become possible to design a solar module and a solar panel that are more efficient and can obtain greater efficiency. In addition, as materials used to manufacture solar modules and solar panels become relatively inexpensive, they contribute to a reduction in the production cost of solar power generation.

In addition, the solar cell module has a multi-layered structure to protect the solar cell from the external environment. The solar cell module frame maintains the mechanical strength of the solar cell module and serves to strongly bond the solar cell and the materials stacked on the front and rear surfaces of the solar cell.

On the other hand, the solar module is configured by connecting a plurality of strings in series. For example, 4 to 6 strings constitute one photovoltaic module, and each of them has a photovoltaic power generation function independently. For the string, bus bars are manufactured on the lower and upper portions of the divided strip, respectively, and the bus bars are connected to each other by ECA.

An example of the technology related to such a solar module is disclosed in Patent Documents 1 to 3 and the like.

For example, in Patent Document 1 below, a plurality of strings connected in parallel are included, and each string constitutes a cell block in which fragment cells constitute a cell unit as a minimum unit, and the cell blocks are adjacent (in the y-axis direction and in the string direction). same) and a hidden tab, the hidden tab includes a first portion and a plurality of second portions protruding from the first portion, the first portion has a thin band shape, and a first direction (x-axis direction), and the second portion has a greater width than the first portion and is disclosed for a solar cell module protruding from the first portion in the second direction (y-axis direction).

In addition, in Patent Document 2 below, in the solar cell constituting the shingled module, an electrical anode and a cathode are respectively divided into front and back sides, and electrode regions are joined to overlap each other to be electrically connected, and the shingled module is a circuit configuration step can be serially connected in the horizontal direction, and in this way, the front side of the solar cell and the rear side of the solar cell are connected to each other to form a circuit by being horizontally connected in series, and the front side and the rear side can be connected by a bus ribbon, and the bus A ribbon is disclosed for a solar cell module that can be connected to an external load to allow current to flow.

Meanwhile, in Patent Document 3 below, compound solar cells may include a busing ribbon, and the busing ribbon includes a first busing ribbon connected to the anode of the compound solar cell module and a second busing ribbon connected to the cathode, and the anode and The cathode refers to the anode and the cathode of a diode in the circuit configuration of the compound solar cell module, and the compound solar cells arranged in a shingled manner in the row direction and connected in series in the first row and the compound solar cells arranged in the second row The cells are disclosed for a compound solar cell module connected in parallel by a first busing ribbon and a second busing ribbon.

Republic of Korea Patent Publication No. 2019-0120599 (published on October 24, 2019) Republic of Korea Patent Publication No. 10-2026101 (Registered on September 23, 2019) Republic of Korea Patent Publication No. 2019-0101705 (published on September 02, 2019)

In the technology disclosed in Patent Document 1 as described above, there is a problem that the interconnector part protrudes to the outside of the string, so that disconnection may occur in the connector part when the module is coupled.

In addition, in the technology disclosed in Patent Document 2, there is a problem in that the interconnection ribbon uses a double ribbon connected by a bus ribbon for circuit configuration, and the manufacturing process increases, and accordingly, the manufacturing cost increases.

On the other hand, in the technique disclosed in Patent Document 3, a structure in which the first busing ribbon and the second busing ribbon are connected in parallel, and there is a problem in that the configuration of the rear wiring is complicated when the shingled solar cell panel is manufactured.

That is, in the prior art as described above, as shown in FIG. 1 , the ribbon is extended to the outside of the module and connected to a junction box, so that the design of the rear surface is not free, and the panel area is wide and compact It was difficult to come up with a structure.

The object of the present invention was made to solve the above-described problems, and by providing a ribbon that is electrically connected to the upper electrode in the edge region of the string and folds in a direction perpendicular to the length direction of the string, the rear wiring configuration is To provide a shingled high-power module that can be freely designed and a method for manufacturing the same.

Another object of the present invention is to provide a shingled high-power module and a method of manufacturing the same, which can preserve an aesthetic feeling because a separate ribbon is not exposed on the front side of the module.

Another object of the present invention is to provide a shingled high-power module capable of easily performing post-processing of the module and a method for manufacturing the same.

In order to achieve the above object, the method for manufacturing a shingled high-power module according to the present invention is a method for manufacturing a solar cell panel as a shingled high-output module, comprising the steps of (a) providing a plurality of strings provided with upper electrodes and lower electrodes , (b) adhering a first ribbon or conductive tape to the upper electrodes of the plurality of strings, and (c) adhering a second ribbon or conductive tape to the lower electrodes of the plurality of strings, the plurality of strings comprising: each upper electrode of the string is electrically connected in parallel by the first ribbon or conductive tape, and each lower electrode of the plurality of strings is electrically connected in parallel by the second ribbon or conductive tape, An end of the first ribbon or conductive tape is characterized in that it is folded in a direction perpendicular to a longitudinal direction in which the plurality of strings are arranged.

In addition, in the method for manufacturing a shingled high-power module according to the present invention, the end of the first ribbon or conductive tape is drawn out to the lower part of the string.

Further, in the method of manufacturing a shingled high-power module according to the present invention, the first ribbon or conductive tape is electrically connected to a negative electrode that is an upper electrode of the string, and the second ribbon or conductive tape is a lower portion of the string. It is characterized in that it is electrically connected to the (+) electrode which is an electrode.

In addition, in the method for manufacturing a shingled high-power module according to the present invention, the (-) electrode of the first ribbon or conductive tape and the (+) electrode of the second ribbon or conductive tape are electrically connected to a junction box, respectively. characterized in that it is connected.

In addition, in the method for manufacturing a shingled high-power module according to the present invention, in the step (b), the first ribbon or conductive tape is electrically bonded to the upper electrode in a state in which the end is folded.

Also, in the method of manufacturing a shingled high-power module according to the present invention, the electrical connection between the first ribbon or conductive tape and the second ribbon or conductive tape is performed on a horizontal surface of the second ribbon or conductive tape provided under the string. characterized.

Also, in the method of manufacturing a shingled high-power module according to the present invention, the method further includes (d) providing first to fourth units each composed of the plurality of strings, wherein the upper electrode of the first unit is the second The lower electrode of the unit is connected in series by first and second ribbons or conductive tapes, and the upper electrode of the second unit and the lower electrode of the fourth unit are connected in series by the first and second ribbons or conductive tapes. connected, and the upper electrode of the fourth unit and the lower electrode of the third unit are also connected in series by the first and second ribbons or conductive tapes, the lower electrode of the first unit and the upper electrode of the third unit Each is characterized in that it is electrically connected to a junction box (junction box).

In addition, in order to achieve the above object, the shingled high-power module according to the present invention is characterized in that it is manufactured by the above-described method for manufacturing a shingled high-power module.

As described above, according to the shingled high-power module and the method for manufacturing the same according to the present invention, by providing a structure in which the end of the first ribbon is folded in a direction perpendicular to the longitudinal direction in which a plurality of strings are arranged, the first Damage of the ribbon is prevented, the electrical connection of the junction box can be performed without limitation, and since the first ribbon is not exposed on the front side of the module, the effect of saving aesthetics is obtained.

In addition, according to the shingled high-power module and the method for manufacturing the same according to the present invention, the electrical connection between the first ribbon and the second ribbon is performed on the horizontal plane of the second ribbon provided under the string, thereby facilitating the post-process in the manufacturing process of the module The effect that it can be implemented is obtained.

1 is a photograph of a conventional solar cell module in which a ribbon extends to the outside of the module;
2 is a plan view showing an example of a shingled high-power module according to the present invention;
3 is a view showing an upper electrode and a lower electrode of the string shown in FIG. 2;
4 is a view showing the state of the adhesive structure of the second ribbon or conductive tape in the first unit shown in FIG. 2;
5 is a view showing the state of the adhesive structure of the second ribbon or conductive tape in the third unit shown in FIG. 2;
6 is a view showing the state of the bonding structure of the first ribbon or conductive tape and the second ribbon or conductive tape in the fourth unit shown in FIG. 2;
7 is a side view showing the state of the first ribbon or conductive tape applied to the present invention.

The above and other objects and novel features of the present invention will become more apparent from the description of the present specification and accompanying drawings.

As used herein, the term "wafer" is a wafer for solar cells made of single crystal or polycrystalline silicon, and "solar cell" is provided in a form in which electrodes are screen printed on a P-type silicon substrate, and p- PERC (Passivated Emitter and Rearside Contact), 　n-HIT (Hetrojunction with Intrinsic Thin lyaer), n-PERT (Passivated Emitter and Rear Totally diffused), CSC (Charge Selective Contact) may be formed.

Also, as used herein, the term "photovoltaic structure" means a device capable of converting light into electricity, which may include a number of semiconductors or other types of materials, and refers to a "solar cell ( A "solar cell" or "cell" is a photovoltaic (PV) structure capable of converting light into electricity, may have various sizes and shapes, may be made of various materials, and may include semiconductor (eg, silicon) wafers. or PV structures fabricated on a substrate or one or more thin films fabricated on a substrate (eg, glass, plastic, metal, or any other material capable of supporting a photovoltaic structure).

In addition, a “finger line,” “finger electrode,” “finger strip,” or “finger” may refer to the extended electrical conductivity (e.g., metal) electrode, "busbar", "bus line" or "bus electrode" is an extension of a PV structure for collecting current collected by two or more finger lines electrically conductive (eg: metal) electrodes that are generally wider than the finger lines and may be placed on or within a photovoltaic structure, and a single photovoltaic structure may be provided with one or more busbars.

On the other hand, a “metal grid” or “grid” is typically a collection of finger lines or electrodes, which means formed by depositing a metal material layer on a solar cell structure, and includes a “solar cell strip”, “ A photovoltaic strip" or "strip" is a part or segment of a PV structure, such as a solar cell, wherein the PV structure can be divided into multiple strips, the widths and lengths of which can be the same or different from each other.

In addition, the term "shingled array structure" refers to a plurality of strips by cutting solar cells provided with front and rear electrodes in order to increase the conversion efficiency and output per unit of the solar cell module, and the front and rear electrodes are connected to each other. It refers to a string structure connected by bonding with a conductive adhesive.

In addition, in the "solar cell module", a plurality of solar cell strings of a shingled array structure are electrically connected on a frame, glass is located on the front side, EVA sheet is formed on the back side, and fillers are placed in the middle to form a solar cell panel. means to form

As used herein, the term "conductive adhesive (Electroconductive Adhesive; ECA)" is an adhesive having electrical conductivity used for wiring bonding of electrical and electronic products or circuits, and silver particles are mixed with an epoxy resin. In addition, the conductive adhesive can be applied using a screen printing method or a micro dispenser, and the discharge amount from the needle must be constant and do not flow down. As the conductive filler, metal powder such as gold, platinum, silver, copper, nickel, carbon or carbon fiber, graphite, and composite powder may be used.

In addition, as used herein, the term "ribbon or conductive tape" refers to a conductive connection member capable of electrically connecting an upper electrode or a lower electrode respectively provided in a plurality of strings and electrically connecting to a junction box when manufacturing a solar cell module. , and "unit" means a component of a solar cell module in which a plurality of strings are electrically connected by a ribbon or conductive tape.

In addition, in case of applying conductive tape, the width of the conductive tape can be set in a range of 1.2mm to 5mm, which is larger than the electrode width at the tip of the string, and the length of the ribbon or conductive tape can be set variable depending on the location of the junction box. can be

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

FIG. 2 is a plan view illustrating an example of a shingled high-power module according to the present invention, and FIG. 3 is a view showing an upper electrode and a lower electrode of the string shown in FIG. 2 .

As shown in FIG. 2 , the shingled high-power module 100 according to the present invention includes, for example, first to fourth units 110 to 140 each consisting of a plurality of strings 10 .

The string 10 uses a solar cell wafer having a quadrangular shape (pseudo-squared) or a full-squared shape with four tapered corners, and a conductive adhesive (ECA) is applied on the upper conductive layer of the wafer. It is applied to form an adhesive layer, and the wafer on which the adhesive layer is formed is divided into, for example, 4, 5 or 6 strips, and prepared by overlapping the strips. In addition, although the drawings show a structure in which a plurality of strings 10 are disposed at intervals for convenience of explanation, the plurality of strings 10 may be disposed in close contact with each other. In addition, although the first to fourth units 110 to 140 also showed a structure arranged at intervals, the first to fourth units 110 to 140 also have a space of 1 to 2 mm, for example. and placed in close contact with each other.

Application of the conductive adhesive is collectively prepared by screen printing. However, the present invention is not limited thereto, and may be applied by using a micro dispenser.

The strip may be prepared, for example, by scribing with a low energy level UV&Green laser on top of the wafer to minimize surface burning and burr formation of the wafer.

In addition, an upper electrode 11 is provided on the upper part of the string 10 as shown in FIG. 3A, and a lower electrode 12 is provided on the lower part as shown in FIG. 3B. . That is, each string 10 is provided with an upper electrode 11 and a lower electrode 12 , and each string is arranged such that the upper electrode 11 and the lower electrode 12 are disposed at the same position in each unit. do. Meanwhile, in FIGS. 2 and 3 , the portion provided with the lower electrode 12 is shown in a protruding shape, but the present invention is not limited thereto, and the string 10 may be provided only in a substantially rectangular shape like the upper electrode 11 . . Each upper electrode of the plurality of strings 10 is electrically connected in parallel by the first ribbon or conductive tape, and each lower electrode of the plurality of strings 10 is connected to the second ribbon or conductive tape. electrically connected in parallel by

Each of the first to fourth units 110 to 140 has a structure formed of six strings 10 in FIG. 2 , but is not limited thereto, and may be provided in 5 or less or 7 or more. .

As shown in FIG. 2 , the arrangement of the strings 10 of the first unit 110 and the third unit 130 is arranged in the same direction, and the second unit 120 and the fourth unit 140 are The arrangement of the strings of the first unit 110 and the third unit 130 is opposite to that of the arrangement.

Accordingly, the upper electrode of the first unit 110 is connected in series with the lower electrode of the second unit 120 by a ribbon or conductive tape, and the upper electrode of the second unit 120 and the lower electrode of the fourth unit 140 are connected in series. The electrodes are connected in series by a ribbon or conductive tape, and the upper electrode of the fourth unit 140 and the lower electrode of the third unit 130 are also connected in series by the ribbon or conductive tape.

On the other hand, in the shingled high-power module 100 shown in FIG. 2 , the (+) electrode, which is the lower electrode of the first unit 110, and the (-) electrode, which is the upper electrode of the third unit, are respectively in the junction box. electrically connected. The junction box may be disposed on any one of the side surfaces of the module 100 shown in FIG. 2 or at the center.

In FIG. 2 , a ribbon or conductive tape connecting the upper electrodes 11 of a plurality of strings 10 is shown in a black band shape as a first ribbon or conductive tape 20 for convenience of explanation, and a plurality of strings 10 . A ribbon or conductive tape connecting the lower electrode 12 of the second ribbon or conductive tape 20 was shown in the shape of a dotted band.

As shown in FIG. 2, the upper electrode 11 of each string 10 is connected in parallel by a first ribbon or conductive tape 20, and the lower electrode 12 is connected to a second ribbon or conductive tape 20 30) is connected in parallel, and the first ribbon and the second ribbon are arranged with a height difference of, for example, 1-3 mm corresponding to the thickness of the string 10 . That is, each lower electrode 12 of the first to fourth units 110 to 140 is disposed on a support plate through a sealing material to form the shingled high-power module 100 according to the present invention, and the upper electrode Reference numeral 11 is provided at a position corresponding to the height of the string 10, for example, 1 to 3 mm higher than the lower electrode 30 .

Therefore, the first ribbon 20 provided in the second unit 120 and the first ribbon 20 provided in the third unit 130 are, respectively, as shown in FIG. 1 , the second unit 120 and the third unit ( 130) to expand an unnecessary area of the module 100 or to damage the first ribbon 20. In addition, since the first ribbon 20 is disposed at a position higher than the support plate, there is also a problem in that the electrical connection between the first ribbon 20 and the junction box is limited.

In order to overcome this problem, in the present invention, the first ribbon or conductive tape 20 provided in the first to fourth units 110 to 140 and the first ribbon or conductive tape 20 provided in the first to fourth units 110 to 140 are provided. The end of the tape 20 is prepared by folding in a direction perpendicular to the longitudinal direction in which the string 10 is arranged as shown in FIGS. 5 and 6 .

4 is a view showing the state of the adhesive structure of the second ribbon or the conductive tape in the first unit shown in FIG. 2, and FIG. 5 is the adhesive structure of the second ribbon or the conductive tape in the third unit shown in FIG. It is a view showing the state, and FIG. 6 is a view showing the state of the bonding structure of the first ribbon or conductive tape and the second ribbon or conductive tape in the fourth unit shown in FIG. 2 .

That is, in FIG. 4 , in the first unit 110 of FIG. 2 , the second ribbon or conductive tape 30 is adhered to the lower portion of the string 10 and penetrates the sealing material to be connected to the junction box at the support plate. After being bent in a substantially right angle direction from the bottom, it represents a state in which it is bent to maintain a flat state with the support plate.

In addition, FIG. 5 shows the string 10 so that in the third unit 130 of FIG. 2 , the first ribbon or conductive tape 20 is adhered to the lower portion of the string 10 and penetrates the sealing material to be connected to the junction box at the support plate. The lower part is folded from the upper part, and the lower part of the string 10 is bent in a substantially right angle direction, and then bent to maintain a flat state with the support plate.

6 is a structure showing an example of the fourth unit 140 in FIG. 2 , in which the end of the first ribbon or conductive tape 20 is folded in a direction perpendicular to the longitudinal direction in which the string 10 is arranged, and the string ( 10) is pulled out and maintained. Therefore, the electrical connection between the lower electrode 30 of the third unit 130 and the upper electrode 20 of the fourth unit 140 can be realized on the support plate for forming the shingled high-power module 100 .

5 and 6, a folded long band-shaped first ribbon or conductive tape 20 that electrically connects the upper electrode 11 of each string 10 in parallel is provided on the support plate. Since it is provided on the same plane as the second ribbon or conductive tape 30, electrical connection can be designed to face in any direction from the rear surface of each unit, so that the wiring configuration of the rear surface of the unit can be designed more freely. That is, the electrical connection between the first ribbon or conductive tape 20 and the second ribbon or conductive tape 30 is performed on a horizontal surface of the second ribbon or conductive tape 30 provided under each string 10 . Accordingly, since the first ribbon is not exposed from the upper part of the unit in the front part as shown in FIG. 1 , it is possible to have an aesthetic feeling.

In addition, in FIG. 6 , it is shown that the first ribbon or conductive tape 20 is positioned under the first string 10 , but is not limited thereto, and the folded length portion of the first ribbon or conductive tape 20 is a unit It can be added or subtracted according to the wiring condition of the back side of the

As described above, in the shingled high-power module 10 according to the present invention, the electrical connection of the first ribbon or conductive tape 20 and the second ribbon or conductive tape 30 and the first ribbon or conductive tape 20 and Since the electrical connection with the junction box is performed on the support plate, the post-processing process of manufacturing the module 100 can be performed simply.

On the other hand, bonding of the first ribbon or conductive tape 20 and the second ribbon or conductive tape 30 and the upper electrode 11 and the lower electrode 12 of the string 10 is, for example, a tabbing process (tabbing process). process) cut the first ribbon 20 and the second ribbon 30 to a predetermined length to form a flat band shape, and solder paste to each of the upper electrode 11 and the lower electrode 12 of the string 10 . paste), the first ribbon or conductive tape 20 and the second ribbon or conductive tape 30 are brought into contact with the upper electrode 11 and the lower electrode 12 to which the solder paste is applied, respectively, and the In the state, the first ribbon or conductive tape 20 and the second ribbon or conductive tape 30 are soldered to the upper electrode 11 and the lower electrode 12 by heating the contact area in a reflow method. can be implemented by

Next, a unit as shown in FIG. 6 may be prepared by folding the end of the first ribbon or conductive tape 20 in a direction perpendicular to the length direction of the string 10 .

In addition, in the above embodiment, although the first ribbon or conductive tape 20 of a flat band shape has been applied and described, the present invention is not limited thereto, and the first ribbon or conductive tape 20 as shown in FIG. 5 may be applied. .

7 is a side view showing the state of the first ribbon or conductive tape applied to the present invention.

That is, in the tabbing process for manufacturing the shingled high-power module 100 according to the present invention, as shown in FIG. 7 , the upper portion of the string 10 in a state in which the end of the first ribbon or conductive tape 20 is folded. A structure bonded to the electrode 11 may be applied.

In addition, in the structure of the first ribbon or conductive tape 20 shown in FIG. 7 , the end of the first ribbon or conductive tape 20 is folded at the left side to be applied to the third unit 130 and the fourth unit 140 . However, it is not limited thereto, and when applied to the first unit 110 and the second unit 120, the other end of the first ribbon or conductive tape 20 is folded to the right by providing a structure may apply.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments and various modifications can be made without departing from the gist of the present invention.

By using the shingled high-power module and its manufacturing method according to the present invention, the damage of the first ribbon can be prevented, the electrical connection of the junction box can be performed without limitation, and the first ribbon or conductive tape is Because it is not exposed, it is possible to save the aesthetic feeling.

10: string
20: first ribbon
30: second ribbon

Claims (8)

A method for manufacturing a solar cell panel as a shingled high-power module, comprising:
(a) providing a plurality of strings provided with an upper electrode and a lower electrode;
(b) adhering a first ribbon or conductive tape to the upper electrodes of the plurality of strings; and
(c) adhering a second ribbon or conductive tape to the lower electrodes of the plurality of strings;
Each upper electrode of the plurality of strings is electrically connected in parallel by the first ribbon or conductive tape, and each lower electrode of the plurality of strings is electrically connected in parallel by the second ribbon or conductive tape becomes,
An end of the first ribbon or conductive tape is folded in a direction perpendicular to a length direction in which the plurality of strings are arranged. In claim 1,
The method of manufacturing a shingled high-power module, characterized in that the end of the first ribbon or conductive tape is drawn out to the lower part of the string. In claim 1,
The first ribbon or conductive tape is electrically connected to the (-) electrode that is the upper electrode of the string,
The method of manufacturing a shingled high-power module, characterized in that the second ribbon or conductive tape is electrically connected to a (+) electrode that is a lower electrode of the string. In claim 3,
The (-) electrode of the first ribbon or conductive tape and the (+) electrode of the second ribbon or conductive tape are each electrically connected to a junction box. In claim 1,
In the step (b), the first ribbon or conductive tape is electrically bonded to the upper electrode in a state in which the end is folded. In claim 1,
Electrical connection between the first ribbon or conductive tape and the second ribbon or conductive tape is performed on a horizontal surface of the second ribbon or conductive tape provided under the string. In claim 6,
(d) further comprising the step of providing first to fourth units each consisting of the plurality of strings,
The upper electrode of the first unit is connected in series with the lower electrode of the second unit by first and second ribbons or conductive tapes, and the upper electrode of the second unit and the lower electrode of the fourth unit are connected to the first and second units. connected in series by a second ribbon or conductive tape, the upper electrode of the fourth unit and the lower electrode of the third unit are also connected in series by the first and second ribbons or conductive tape,
The method for manufacturing a shingled high-power module, characterized in that the lower electrode of the first unit and the upper electrode of the third unit are electrically connected to a junction box, respectively. A shingled high-power module, characterized in that it is manufactured by the method for manufacturing a shingled high-power module according to any one of claims 1 to 7.

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