WO2019232974A1

WO2019232974A1 - Photovoltaic battery assembly, photovoltaic wall and method for manufacturing photovoltaic battery assembly

Info

Publication number: WO2019232974A1
Application number: PCT/CN2018/106047
Authority: WO
Inventors: 段军; 郭琦; 胡德政; 徐希翔; 李沅民
Original assignee: 君泰创新（北京）科技有限公司
Priority date: 2018-06-08
Filing date: 2018-09-17
Publication date: 2019-12-12
Also published as: CN110581192A

Abstract

Disclosed are a photovoltaic battery assembly, a photovoltaic wall and a method for manufacturing a photovoltaic battery assembly. The photovoltaic battery assembly comprises a first packaging plate (1) and a second packaging plate (2), which are arranged opposite each other, and a solar cell assembly, wherein the solar cell assembly is sandwiched between the first packaging plate (1) and the second packaging plate (2), the solar cell assembly comprises a cell string (3), the cell string (3) comprises cells (301) connected in series, and the cells (301) connected in series are arranged at least partially in a stacked manner; and at least one of the first packaging plate (1) and the second packaging plate (2) is a high-molecular material plate.

Description

Photovoltaic cell component, photovoltaic wall and manufacturing method of photovoltaic cell component

Cross-reference to related applications

This application claims priority based on a Chinese application with an application number of 201810585616.8, filed on June 8, 2018, the entire contents of which are incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of solar modules, and in particular, to a photovoltaic cell module and a photovoltaic wall.

Background technique

The photovoltaic cell components in related photovoltaic noise-proof walls generally adopt double-glass photovoltaic cell modules or single-glass photovoltaic cell modules. Among them, the double-glass photovoltaic cell module uses two pieces of tempered glass as the packaging structure of the solar cell, and the single-glass photovoltaic cell module. Using a piece of tempered glass and other packaging boards as the packaging structure of the solar cell, the double-glass photovoltaic cell module has a wider range of applications than the single-glass photovoltaic cell module.

However, due to the high quality of tempered glass, the double-glass photovoltaic cell module is heavier and inconvenient to use as a whole; and the tempered glass has a poor sound insulation effect; the toughness is easy to break, and at the same time, there is a gap between the cells in the related solar cell string. The gap position is not covered by the cell sheet, which reduces the power generation efficiency of the entire photovoltaic cell module.

Public content

To achieve the above object, the embodiments of the present disclosure adopt the following technical solutions:

An aspect of the present disclosure provides a photovoltaic cell module including:

A first package board and a second package board that are opposite to each other; and a solar cell module assembly sandwiched between the first and second packaging boards, wherein the solar cell module includes a battery string, The battery string includes battery slices connected in series, and the battery slices connected in series are at least partially stacked;

Wherein, at least one of the first packaging board and the second packaging board is a polymer material board.

Another aspect of the present disclosure also provides a photovoltaic wall including a mounting member and the photovoltaic cell module provided by the foregoing technical solution, wherein the photovoltaic cell module is installed on a building through the mounting member.

Another aspect of the present disclosure also provides a method for manufacturing a photovoltaic cell module, including:

The photovoltaic cell module to be packaged is placed in a packaging device; wherein the photovoltaic cell module includes a first package board and a second package board which are oppositely disposed; and sandwiched between the first package board and the second package board Between the solar cell module, the solar cell module includes a battery string, the battery string includes a series of cells, the cells in series are at least partially stacked; wherein the first package board and the At least one of the second packaging boards is a polymer material board; and

The packaging device is used to adjust the temperature and pressure of the photovoltaic cell module to be packaged, and then the photovoltaic cell module to be packaged is laminated to obtain a photovoltaic cell module.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of a photovoltaic cell module according to an embodiment of the present disclosure;

2 is a schematic structural diagram of another photovoltaic cell module according to an embodiment of the present disclosure;

FIG. 3 is a connection relationship diagram of multiple battery strings according to an embodiment of the present disclosure; FIG.

Figure 4 is a top view of Figure 3;

5 is a cross-sectional view taken along A-A of FIG. 3;

Figure 6 is a sectional view taken along the line B-B of Figure 3;

FIG. 7 is another connection relationship diagram of multiple battery strings according to an embodiment of the present disclosure; FIG.

8 is a schematic structural diagram of a photovoltaic wall according to an embodiment of the present disclosure; and

FIG. 9 is a flowchart of a method for manufacturing a photovoltaic cell module according to an embodiment of the present disclosure.

Reference signs:

100-photovoltaic cell module; 1-first package board; 2-second package board; 3-battery string; 301-cell slice; 4-packaging film; 5-waterproof plastic frame; 6-installation hole; 7-connection 8-mounting parts; P-layer; L-battery string side-by-side direction.

Detailed ways

The photovoltaic cell module and photovoltaic wall according to the embodiments of the present disclosure will be described in detail below with reference to the drawings.

In the description of the present disclosure, the terms “first” and “second” are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise stated, "a plurality" means two or more.

In the description of this disclosure, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless explicitly stated and limited otherwise. For example, they may be fixed connections or removable. Connected or integrated; it can be mechanical or electrical; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood on a case-by-case basis.

The term "and / or" in this document is only a kind of association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases. In addition, the character "/" in this text generally indicates that the related objects are an "or" relationship.

Photovoltaic cell modules can convert solar energy into electricity for use in other equipment. For example, photovoltaic cell modules can be used as important components in photovoltaic walls. They need to have good sound insulation effects. At the same time, photovoltaic sound insulation walls are generally in harsh environments, such as on both sides of highways and train tracks. In this way, the impact resistance performance of photovoltaic cell modules also has higher requirements, and small quality and high power generation efficiency are also important parameters for evaluating the performance of photovoltaic cell modules.

An embodiment of the present disclosure provides a photovoltaic cell module. The following specifically describes the photovoltaic cell module:

Referring to FIG. 1, the photovoltaic cell module includes a first package board 1 and a second package board 2 opposite to each other, and a solar cell module sandwiched between the first package board 1 and the second package board 2. The solar cell module includes a battery string 3, and the battery string 3 includes battery cells 301 connected in series. The battery cells 301 connected in series are at least partially stacked, and the first package board 1 and / or The two packaging boards 2 are polymer material boards. The materials of the first packaging board 1 and the second packaging board 2 are the same or different, such as including at least one selected from a PC board, a PETG board, and a PCTG board.

Among them, the polymer material plate as the packaging plate replaces the tempered glass in photovoltaic cell modules in the related field. The polymer material board has better specific gravity, impact strength and sound insulation effect than tempered glass, and has the characteristics of high transparency, heat insulation, flame resistance, aging resistance and so on. Take PC board, PETG board or PCTG board as examples. The performance parameters of PC board, PETG board, PCTG board and tempered glass are shown in Table 1:

Table 1

From Table 1:

At the same volume, the mass of PC board, PETG board and PCTG board is nearly half smaller than that of tempered glass, so that the overall mass of photovoltaic cell modules can be reduced by at least half.

PC board, PETG board, and PCTG board also have significantly higher impact strength than tempered glass, which indicates that the PC board, PETG board, and PCTG board are impact resistant, thereby improving the impact resistance of photovoltaic cell modules.

PC board, PETG board and PCTG board also have better sound insulation effect than tempered glass.

In summary: The photovoltaic cell module provided by the present disclosure has the advantages of light weight, good sound insulation effect, and impact resistance. In addition, polymer material boards (such as PC board, PETG board, or PCTG board) will not splash after being broken, which effectively reduces personal injury.

The plurality of serially connected battery slices 301 are at least partially stacked, and the battery slices 301 can be connected to each other in a tight manner, so that the size of the gap at the junction of the two battery slices 301 is minimized. More cells 301 can be connected in series, and ultimately the power generation efficiency of the photovoltaic cell module is improved.

When specifically connected in series, in a specific embodiment, conductive battery can be used to connect two battery slices 301 connected in series.

It should be noted that, when the photovoltaic cell module is used in particular, the power generation solar cell module has at least two battery strings 3, as shown in FIG. 3 and FIG. 4, the edges of two adjacent battery strings 3 are at least partially stacked, Adopting this overlap method can ensure a seamless gap between two adjacent battery strings 3. Compared with the existing connection method, the gap between the battery strings 3 is eliminated, and more batteries can be installed in parallel or in series in a unit area. String 3, effectively improve the power generation efficiency of photovoltaic cell modules. Optionally, the at least two battery strings may also draw current through the conductive lines at the ends of each battery string, and the conductive lines may be connected in series or in parallel.

The edges of the two adjacent battery strings described above are at least partially stacked, which is not only suitable for the series connection of two adjacent battery strings but also for the parallel connection of two adjacent battery strings.

When two adjacent cells are connected in series or in parallel, at least part of the stacking arrangement between the battery sheets 301 and at least part of the stacking arrangement between the edges of the battery strings 3 work together to further improve the power generation efficiency of the photovoltaic cell module.

In specific implementation, the width of the overlapping area of the edges of two adjacent battery strings 3 is 1 mm to 2 mm.

When there are at least three battery strings 3, in addition to the two battery strings 3 located at both ends, where both ends are both ends along the parallel direction of the battery strings, the edges of two adjacent battery strings 3 are overlapped. This kind of overlapping layout structure, two of which are described below:

As an example, as shown in FIG. 3, one end edge of any one of the battery strings is disposed above the battery string adjacent to one side thereof, and the other end edge is disposed below the battery string adjacent to the other side thereof.

Since the plurality of battery slices 301 in the battery string 3 are at least partially stacked, as shown in FIG. 4, there is a stacked region P between two adjacent battery slices 301 (that is, the stacked region is the battery string In the stacking area of two adjacent battery cells in the middle), if the stacking area P of the adjacent two battery strings 3 corresponds, the stacking between two adjacent battery strings 3 will occur when the edges of the battery strings are stacked again Zone P overlaps again, affecting power generation efficiency. In order to avoid this phenomenon, as shown in FIG. 5, FIG. 6 and FIG. 7, the stacked areas P of two adjacent battery strings 3 are staggered, so that the effect achieved is: 1. The staggered layout of the stacked areas P can reduce the phase The distance between two adjacent battery strings 3 reduces the thickness of the entire double-sided power generation solar cell module; looking along the parallel direction L of the multiple battery strings 3 (as shown in FIG. 4), the There are protrusions on both sides, and the protrusions can effectively receive solar energy. In this way, compared with the stacked area P, it can avoid more shadow blocking areas, thereby improving the power generation efficiency of the photovoltaic resistor.

For example, as shown in FIG. 7, the edges of both ends of any of the battery strings are disposed above or below two adjacent battery strings, so that three adjacent battery strings form a character-shaped structure. Compared with the overlapping structure shown in FIG. 3, this structure can further save the installation space of multiple battery strings, and more battery strings can be arranged in a unit area.

Cell 301 uses HIT solar cells, that is, the P-type doped layer (P-type amorphous silicon or microcrystalline silicon layer, such as hydrogenated amorphous silicon layer) and the N-type doped layer (N-type amorphous silicon or microcrystalline layer) A non-doped (intrinsic) film is added between the silicon layer (such as hydrogenated amorphous silicon) and the single crystal silicon wafer substrate (N-type or P-type). With this structure, the performance of the PN junction is changed, and the photoelectric conversion efficiency and the open-circuit voltage can be improved.

For example, the solar cell module is a double-sided solar cell module.

An encapsulating film 4 is provided between the first encapsulating plate 1 and the second encapsulating plate 2 and the solar cell module, and the encapsulating film 4 adheres the first encapsulating plate 1, the second encapsulating plate 2 and the power generating solar cell module. The knot is one. The two-layer encapsulating adhesive film 4 may be the same adhesive film or different adhesive films. Optionally, the encapsulating film 4 is selected from at least one of an EVA film, a PVB film, a PU film, and a POE film.

Photovoltaic cell modules are inevitably encountered by water and other liquids during specific use. Referring to FIG. 2, the periphery of the power generation solar cell module and the encapsulating film 4 is encapsulated by a waterproof plastic frame 5. The first packaging board 1 and the second packaging board 2 are bonded together, and the waterproof rubber frame 5 can protect the power generation solar cell module from corrosion, and can also ensure the performance of the packaging film 4 and extend the packaging film 4 Life.

The waterproof rubber frame 5 is formed by softening and solidifying the butyl rubber. Other glues with similar functions can also be used in the present disclosure.

Exemplarily, the thickness of the first packaging board 1 and the second packaging board 2 is 3 mm to 8 mm.

An embodiment of the present disclosure also provides a photovoltaic wall. Referring to FIG. 8, the photovoltaic cell module and a mounting member 8 described above are included. The photovoltaic cell module is installed on a building through the mounting member 8. The module is installed (such as fixedly installed) on the mounting member 8. In specific implementation, the mounting member 8 is a support frame, a keel, or other structure for fixing the photovoltaic cell module. By adopting the above photovoltaic cell module, the photovoltaic wall has the advantages of small mass, good impact resistance and sound insulation effect, and at the same time, the power generation efficiency of the photovoltaic wall is increased by using at least partly stacked battery strings 3 connected in series.

When the photovoltaic wall is specifically installed, a mounting hole 6 can be opened in the photovoltaic cell module 100, and the photovoltaic cell module and the mounting member 8 are fixedly connected through the connecting member 7. If tempered glass is used as the packaging plate of the photovoltaic cell module Since the tempered glass is fragile, the photovoltaic cell module can only be fixedly connected to the mounting member 8 by using a clamping member. Therefore, when a photovoltaic cell module having a polymer plate such as a PC board, a PETG board, or a PCTG board is connected to other structures, , Can effectively improve assembly efficiency and reduce assembly costs.

For example, the photovoltaic wall includes a photovoltaic sound insulation wall, and the photovoltaic sound insulation wall includes a sound insulation component. The sound insulation component may be a sound insulation component in the related art. For example, it may include a sound absorption plate and a sound absorption hole, and a sound absorption plate such as polyester fiber sound absorption. At least one of a plate, a wave absorbing sponge, or a sound insulation felt. By combining the sound insulation member with a polymer material board (such as a PC board, a PETG board, or a PCTG board) in the photovoltaic cell module, the sound insulation effect of the photovoltaic sound insulation wall is further improved.

In summary, one aspect of the present disclosure is to provide a photovoltaic cell module in which the relevant tempered glass sandwiching solar cells is replaced with a polymer plastic plate (such as a PC (polycarbonate) plate, a PETG (modified PET) plate Or PCTG (modified PET) board, compared with the same volume of tempered glass, the quality can be reduced by at least half, and the impact resistance is good, not easy to break, the sound insulation effect is also better than tempered glass, at the same time, the battery chip is at least partially laminated The battery string is formed in series to avoid the phenomenon of gaps between the battery sheets and improve the power generation efficiency of the photovoltaic cell module.

Another aspect of the present disclosure provides a photovoltaic wall. The photovoltaic wall uses the photovoltaic cell module described above, wherein the photovoltaic cell module has light weight, good impact resistance, not easy to crack, good sound insulation effect and high power generation efficiency. The advantages make the use performance of the photovoltaic wall further improved.

Therefore, the photovoltaic cell module and photovoltaic wall provided by the present disclosure reduce the overall quality of the photovoltaic cell module, enhance the sound insulation effect, improve the impact resistance performance, and improve the power generation efficiency.

An embodiment of the present disclosure also provides a method for manufacturing a photovoltaic cell module. Referring to FIG. 9, the method includes:

Step S1, placing a photovoltaic cell module to be packaged in a packaging device.

Wherein, the photovoltaic cell module to be packaged includes a first packaging board, a solar cell chip module, and a second packaging board that are sequentially stacked, and is disposed on the first packaging board, the second packaging board, and the solar cell module. The solar cell chip assembly includes a battery string, and the battery string includes battery cells connected in series, and the battery cells connected in series are at least partially stacked, and the first package board and / or The two packaging boards are polymer material boards.

Step S2, the temperature and pressure of the photovoltaic cell module to be packaged are adjusted by using a packaging device, and then the photovoltaic cell module to be packaged is laminated to obtain a photovoltaic cell module.

Wherein, the materials of the first package board and the second package board are the same or different. For example, the technical effect achieved by including at least one selected from the group consisting of a PC board, a PETG board, and a PCTG board has been described in detail above. Describe.

In step S2, performing temperature and pressure adjustments on the photovoltaic cell module to be packaged specifically includes: sequentially adjusting the photovoltaic cell module to be heated and boosted, heating up and maintaining pressure, maintaining and maintaining pressure, and reducing and maintaining pressure in order. .

The first stage: the heating and boosting stage, in a time period of 2h to 3h, the photovoltaic cell module to be packaged is heated and boosted, and the pressure is increased to 1.1MPa to 1.2Mpa.

The upper limit of the temperature is higher than the softening temperature of the encapsulating film by 5 ° C to 10 ° C. The purpose of this operation is: during the temperature rise process, the general encapsulating film needs to undergo a softening stage and a curing stage. In the temperature range of 5 ° C to 10 ° C above the softening temperature, the flow state of the packaging film is the best. If it is lower than this temperature, the packaging film is in a freshly molten state and the fluidity is still poor. That is, the temperature approaches the curing temperature of the packaging film, and the flow state of the packaging film gradually deteriorates, so when the temperature rises to 5 ° C to 10 ° C higher than the softening temperature of the packaging film, the packaging film can flow. In a state of good performance, the first package board and the second package board are bonded to the solar cell module to ensure the bonding strength.

According to the adhesion characteristics of PC board, PETG board, and PCTG board to the sealing film, the bonding strength between them can be guaranteed only when the pressure rises to 1.1MPa ~ 1.2Mpa.

The second stage: the heating and holding pressure stage, in a period of 1h to 1.5h, the heating and holding of the photovoltaic cell module to be packaged is performed; the temperature is increased to close to the curing temperature of the packaging film, and during the temperature increase process , The pressure in the packaging device needs to be maintained at 1.1MPa ~ 1.2Mpa.

In the process of temperature increase, the above two temperature increasing stages are adopted. Among them, the time required for the first temperature increasing process is longer, that is, during the slow temperature increasing process, the decomposed bubbles in the encapsulating film can be discharged as much as possible. ; In the second heating process, the time is relatively short, and the temperature is raised under a constant pressure. At this time, the pressure effectively prevents the peroxide of the packaging film from continuing to decompose to form bubbles, and the first packaging board and the second packaging board are better. Bonded with solar cell module. Compared with the related art, which has only one temperature-boosting and pressure-increasing process, the air bubbles in the packaging adhesive film can be discharged to the maximum, and the adhesive performance of the packaging adhesive film is guaranteed.

The third stage: heat preservation and pressure keeping, in the time period of 2.5h ~ 3h, heat preservation and pressure keeping of the photovoltaic cell module to be encapsulated.

The fourth stage: cooling and holding pressure, the cooling and holding pressure is performed on the photovoltaic cell module to be encapsulated within a period of 3 hours to 3.5 hours.

Before the temperature rise and pressure adjustment are performed, the packaging cavity is evacuated, and air in each element of the stacked photovoltaic cell module to be packaged is exhausted, thereby improving the overall strength of the photovoltaic cell module finally manufactured.

Before the photovoltaic cell module to be packaged is placed in the packaging device, a periphery of the photovoltaic cell module to be packaged is sealed with a seal, and a gap is formed between the photovoltaic cell module to be packaged and the seal. After lamination of the encapsulated photovoltaic cell module, the seal is removed. The seal is made of silicone material, and the width of the seal is larger than the thickness of the photovoltaic cell module to be encapsulated by 1 mm to 2 mm. The seal first integrates the stacked photovoltaic cell modules to be integrated to facilitate the subsequent adhesive bonding of the sealing film. In order to discharge the air bubbles in the sealing film, the seal needs to make the photovoltaic cells to be packaged when it is installed. There is a gap between it and the seal.

Optionally, the seal has an air hole, and the air hole and the gap between the photovoltaic cell module to be encapsulated and the seal together exhaust air bubbles in the encapsulation film.

In order to prevent the deformation of the PC board, PETG board or PCTG board during the lamination process and the loss of efficiency of the photovoltaic cell module to be packaged, before placing the photovoltaic cell module to be packaged in the packaging device, a protective layer is used to cover the photovoltaic cell module. After the surfaces of the first packaging board and the second packaging board are laminated to the photovoltaic cell module to be packaged, the protective layer needs to be removed. In specific implementation, the protective layer is an aluminum foil or a tin foil, and the protective layer needs to be evenly attached to the surfaces of the first package board and the second package board.

The packaging device provided by the present disclosure is an autoclave, and the photovoltaic cell module to be packaged is placed in a vacuum bag of the autoclave for packaging. Compared with the related laminator, the autoclave can meet the pressure requirement of laminating pressure higher than 1.0MPa. Compared with the related autoclave, the temperature and pressure of the photovoltaic cell module to be encapsulated can be adjusted by controlling the steam, which can According to the characteristics of the PC board, PETG board or PCTG board and the sealing film, appropriate temperature and pressure control is performed to ensure the bonding strength of the solar cell module, the sealing film and the PC board, PETG board, and PCTG board.

Before the photovoltaic cell module to be packaged is placed in the packaging device, a waterproof adhesive is applied to the periphery of the sealing adhesive film and the solar cell chip module, so that after the lamination is completed, the waterproof adhesive forms a waterproof plastic frame. And the waterproof rubber frame is bonded to the first packaging board and the second packaging board.

In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above are only specific implementations of the present disclosure, but the scope of protection of the present disclosure is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure. It should be covered by the protection scope of this disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

A photovoltaic cell module includes:

A first package board and a second package board that are opposite to each other; and a solar cell module assembly sandwiched between the first and second packaging boards, wherein the solar cell module includes a battery string, The battery string includes battery slices connected in series, and the battery slices connected in series are at least partially stacked;

Wherein, at least one of the first packaging board and the second packaging board is a polymer material board.
The photovoltaic cell module according to claim 1, wherein there are at least two battery strings, and at least two of the battery strings are connected in at least one of parallel and series, and two adjacent cells The edges of the string are at least partially stacked.
The photovoltaic cell module according to claim 1, wherein the battery cells connected in series are connected by a conductive adhesive.
The photovoltaic cell module according to claim 2, wherein two adjacent battery cells of each battery string are at least partially stacked so that there is a stacking area between two adjacent battery cells, and two adjacent cells are connected in series or When connected in parallel, the stacked regions in two adjacent battery strings are staggered.
The photovoltaic cell module according to claim 2, wherein there are at least three battery strings, and at least three of the battery strings are provided at the edges of one of the battery strings in addition to the two battery strings at both ends. Above the battery string adjacent to the other side, the other end edge is arranged below the battery string adjacent to the other side.
The photovoltaic cell module according to claim 2, wherein there are at least three of the battery strings, and at least three of the battery strings except for two battery strings at both ends, both ends of any of the battery strings are It is arranged above or below two battery strings adjacent to it.
The photovoltaic cell module according to claim 1, wherein an encapsulating film is provided between each of the first and second packaging plates and the solar cell chip component.
The photovoltaic cell module according to claim 7, wherein the encapsulating film comprises at least one of an EVA film, a PVB film, a PU film, and a POE film.
The photovoltaic cell module according to claim 7, wherein the periphery of the solar cell chip module and the encapsulating adhesive film is encapsulated by a waterproof plastic frame, the waterproof plastic frame and the first encapsulating plate and the second encapsulating plate Bonding.
The photovoltaic cell module according to claim 1, wherein the polymer material board comprises at least one of a PC board, a PETG board, and a PCTG board.
The photovoltaic cell module according to claim 1, wherein the solar cell module is a double-sided solar cell module.
A photovoltaic wall, comprising a mounting member and the photovoltaic cell module according to any one of claims 1 to 11, wherein the photovoltaic cell module is mounted on a building through the mounting member.
The photovoltaic wall according to claim 12, wherein the photovoltaic cell module is provided with a mounting hole for fixing a mounting member.
The photovoltaic wall according to claim 12 or 13, wherein the photovoltaic wall comprises a photovoltaic acoustic wall.
A method for manufacturing a photovoltaic cell module includes:

The photovoltaic cell module to be packaged is placed in a packaging device; wherein the photovoltaic cell module includes a first package board and a second package board which are oppositely disposed; and sandwiched between the first package board and the second package board Between the solar cell module, the solar cell module includes a battery string, the battery string includes a series of cells, the cells in series are at least partially stacked; wherein the first package board and the At least one of the second packaging boards is a polymer material board; and

The packaging device is used to adjust the temperature and pressure of the photovoltaic cell module to be packaged, and then the photovoltaic cell module to be packaged is laminated to obtain a photovoltaic cell module.
The manufacturing method according to claim 15, wherein the step of adjusting the temperature and pressure of the photovoltaic cell module to be packaged comprises: sequentially increasing the temperature and pressure of the photovoltaic cell module to be packaged, increasing temperature and maintaining pressure, and maintaining and maintaining pressure And cooling and holding pressure four adjustment stages.