CN115911164B - Solar module and preparation method thereof - Google Patents
Solar module and preparation method thereof Download PDFInfo
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- CN115911164B CN115911164B CN202211295819.6A CN202211295819A CN115911164B CN 115911164 B CN115911164 B CN 115911164B CN 202211295819 A CN202211295819 A CN 202211295819A CN 115911164 B CN115911164 B CN 115911164B
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- 238000002360 preparation method Methods 0.000 title description 3
- 239000012790 adhesive layer Substances 0.000 claims abstract description 113
- 239000002131 composite material Substances 0.000 claims abstract description 39
- 239000011521 glass Substances 0.000 claims description 23
- 238000003475 lamination Methods 0.000 claims description 18
- -1 polyethylene terephthalate Polymers 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 16
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 16
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 15
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 6
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 6
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 6
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 6
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 6
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 9
- 239000002313 adhesive film Substances 0.000 abstract description 6
- 210000004027 cell Anatomy 0.000 description 55
- 239000003292 glue Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 1
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Laminated Bodies (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present disclosure provides a solar module including a first composite film, a solar cell, and a second composite film, which are sequentially stacked; the first composite film comprises a first adhesive layer and a first release film bonded with the first adhesive layer; the second composite film comprises a second adhesive layer and a second release film adhered to the second adhesive layer, and the first release film and the second release film are respectively adhered to two surfaces of the solar cell. In the recovery process of the solar module, the solar module and the composite film are easy to separate, and the difficulty in separating the solar cell from the adhesive film during recovery of the solar module is solved.
Description
Technical Field
The disclosure relates to the technical field of photovoltaics, in particular to a solar module and a preparation method thereof.
Background
Most materials of the photovoltaic modules are recyclable materials, and besides aluminum and glass, the materials also contain rare metals such as silver, indium, gallium and the like. Although these rare metals account for only 1% of the total weight of the component, they have a greater recovery value. The photovoltaic module is recycled, so that resources can be saved, the exploitation of original resources and the energy consumption for resource refining are reduced, and the influence and damage of ecological environment are reduced. Therefore, the recovery and innocent treatment of the photovoltaic modules are the fields of great attention in the current photovoltaic industry and the environmental community. With the rapid development of the photovoltaic industry in recent years, the technology of recycling the photovoltaic modules is also gradually focused, and the technical path of recycling the photovoltaic modules, which is low in energy consumption and pollution and is economically feasible, is researched by the technicians in the field.
In the prior art, a frame is disassembled by using a frame self-adaptive disassembly system, then a complete glass is disassembled by using a hot knife disassembly component glass system, and a battery piece/adhesive film system is disassembled by low-temperature induction to obtain a mixture of silicon, polymer, metal and the like. However, the recovery technology of the photovoltaic module faces the difficulty of separating the adhesive film from the battery piece, the complete battery piece cannot be obtained, only silicon powder, silver powder and a high polymer mixture can be obtained, and the recycling of resources is not facilitated. If a multi-component electrostatic separation and separation system is used for obtaining the single components of the silicon/silver/copper/polymer, the system cost is increased, and meanwhile, the problems of low yield, low purity of each component, dust pollution and the like are also caused.
Disclosure of Invention
The disclosure provides a solar module with a solar cell and an adhesive film easily separated when the solar module is recovered.
In order to achieve the above object, a first aspect of the present disclosure provides a solar module including a first composite film, a solar cell, and a second composite film, which are sequentially stacked;
the first composite film comprises a first adhesive layer and a first release film bonded with the first adhesive layer; the second composite film comprises a second adhesive layer and a second release film adhered to the second adhesive layer, and the first release film and the second release film are respectively adhered to two surfaces of the solar cell.
Optionally, the solar cell is located in a cavity formed by overlapping the first composite film and the second composite film, and is respectively attached to the first release film and the second release film under negative pressure, and the pressure of the cavity is-80 Pa to-40 Pa.
Optionally, the adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2, preferably 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2, preferably 80-120N/cm 2;
Optionally, the thickness of the first adhesive layer is 0.2-0.8mm, and the thickness of the first release film is 0.02-0.15mm; the thickness of the second adhesive layer is 0.2-0.8mm, and the thickness of the second release film is 0.02-0.15mm.
Alternatively, the first release film and the second release film are each independently selected from one of a polyethylene terephthalate film, a biaxially oriented polypropylene film, a polytetrafluoroethylene film, an ethylene-tetrafluoroethylene copolymer film, and a fluorinated ethylene propylene copolymer film, preferably a polyethylene terephthalate film.
Optionally, the first adhesive layer and the second adhesive layer are each independently selected from one of an ethylene-vinyl acetate adhesive layer, an ethylene octene copolymer adhesive layer, and an ethylene-vinyl acetate and ethylene octene copolymer co-extrusion type composite adhesive layer, and are preferably ethylene-vinyl acetate adhesive layers.
Optionally, the adhesive further comprises a back plate and a cover plate, wherein the back plate is in contact with the first adhesive layer, and the cover plate is in contact with the second adhesive layer; optionally, the back-sheet is selected from one of a glass back-sheet, a FPF back-sheet, a KPK back-sheet, a KPE and multilayer PET back-sheet, a tap back-sheet, a TFB back-sheet, a KFB back-sheet, a BBF back-sheet, a FFC back-sheet, a KPC back-sheet and a KPF back-sheet, and the cover-sheet is selected from a glass cover-sheet.
A second aspect of the present disclosure provides a method of manufacturing a solar module, comprising:
S1, sequentially laminating and paving a back plate, a first adhesive layer, a first release film, a solar cell, a second release film, a second adhesive layer and a cover plate to obtain a preassembled piece;
s2, carrying out lamination treatment and curing treatment on the preassembled piece;
the first adhesive layer is larger than the first release film in size, and the second adhesive layer is larger than the second release film in size; the size of the first release film is larger than that of the solar cell, and the size of the second release film is larger than that of the solar cell; the adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2; the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2.
Optionally, the adhesion force between the first release film and the first adhesive layer is 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 80-120N/cm 2.
Alternatively, the first release film and the second release film are each independently selected from one of a polyethylene terephthalate film, a biaxially oriented polypropylene film, a polytetrafluoroethylene film, an ethylene-tetrafluoroethylene copolymer film, and a fluorinated ethylene propylene copolymer film, preferably a polyethylene terephthalate film; the first adhesive layer and the second adhesive layer are respectively and independently selected from one of an ethylene-vinyl acetate adhesive layer, an ethylene-octene copolymer adhesive layer and an ethylene-vinyl acetate and ethylene-octene copolymer co-extrusion type composite adhesive layer, and are preferably ethylene-vinyl acetate adhesive layers.
Optionally, the lamination process is a heat treatment under vacuum, and the conditions of the lamination process include: the pressure is-80 to-40 Pa, the time is 10 to 30min, and the temperature is 130 to 150 ℃.
Alternatively, the lamination process is at a temperature of 140 ℃.
Optionally, the method further comprises: series welding the battery pieces to form a solar battery; and after the lamination of the first release film and the solar cell is laid, fixing the solar cell and the first release film.
Through the technical scheme, the solar module disclosed by the invention is used for coating the solar cell by using the composite film with the release film, and the release film is attached to the surface of the solar cell. In the recovery process, the solar module and the composite film are easy to separate, and the difficulty in separating the solar cell from the adhesive film during recovery of the solar module is solved.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a specific embodiment referred to in example 1 of the present disclosure;
Fig. 2 is a specific embodiment referred to in comparative example 1 of the present disclosure.
Description of the reference numerals
1. Solar cell
2. Second release film
3. Second adhesive layer
4. Cover plate
5. First release film
6. First adhesive layer
7. Backboard
Detailed Description
The following describes specific embodiments of the present disclosure in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
A first aspect of the present disclosure provides a solar module comprising a first composite film, a solar cell, and a second composite film arranged in a stack;
the first composite film comprises a first adhesive layer and a first release film bonded with the first adhesive layer; the second composite film comprises a second adhesive layer and a second release film adhered to the second adhesive layer, and the first release film and the second release film are respectively adhered to two surfaces of the solar cell.
The solar module of the present disclosure wraps a solar cell with a composite film with a release film and attaches the release film to the solar cell surface. The release film and the solar cell surface are not adhered with adhesive, in the recovery process, the release film can be conveniently torn off from the solar cell surface, the solar module and the composite film are easy to separate, and the difficulty of separating the solar cell from the adhesive film in the recovery process of the solar module is solved.
In a preferred embodiment of the present disclosure, the solar cell is located in a cavity formed by overlapping the first composite film and the second composite film, and the solar cell is respectively attached to the first release film and the second release film under negative pressure, and the pressure of the cavity is-80 Pa to-40 Pa. The solar module can be prepared by sequentially stacking the first composite film, the solar cell and the second composite film under negative pressure, and a cavity for placing the solar cell is formed by laminating the first composite film, the solar cell and the second composite film under negative pressure and laminating the edges of the first composite film and the second composite film. For example, the pressure of the cavity may be-80 Pa, -76Pa, -70Pa, -65Pa, -60Pa, -54Pa, -50Pa, -45Pa, -40Pa, etc.
According to the present disclosure, the adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2, preferably 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2, preferably 80-120N/cm 2; the release film and the adhesive layer have good bonding effect, so that the release film and the battery can be conveniently separated when the solar module is recovered.
According to the present disclosure, in order to achieve a better adhesion effect, the thickness of the first adhesive layer is 0.2-0.8mm, and the thickness of the second adhesive layer is 0.2-0.8mm; in order to ensure the attaching effect of the release film and the solar cell, the thickness of the first release film is 0.02-0.15mm, and the thickness of the second release film is 0.02-0.15mm.
The release film used in the present disclosure is a release force that can make the solar cell and the adhesive layer reach extremely light and stable when peeled off, and can be a single material; or a release film with enhanced waterproof function is formed by dissolving a rubber adhesive in an organic solvent to form a solution, and then coating the solution on a release material layer for curing; or a composite film which changes the adhesion force with the adhesive layer after coating. Preferably, the first release film and the second release film are each independently selected from one of polyethylene terephthalate film, biaxially oriented polypropylene film, polytetrafluoroethylene film, ethylene-tetrafluoroethylene copolymer film and fluorinated ethylene propylene copolymer film, preferably polyethylene terephthalate film release film.
According to the present disclosure, the first adhesive layer and the second adhesive layer are each independently selected from one of an ethylene-vinyl acetate adhesive layer, an ethylene-octene copolymer adhesive layer, and an ethylene-vinyl acetate and ethylene-octene copolymer co-extrusion composite adhesive layer, and preferably, when the first adhesive layer and the second adhesive layer are ethylene-vinyl acetate adhesive layers, better adhesive effect is achieved.
The solar cell used in the present disclosure may be one of a PERC crystalline silicon cell, HJT crystalline silicon cell, TOPCon crystalline silicon cell and BC crystalline silicon cell, or may be a solar cell such as a laminate cell that needs to be packaged by using a lamination process.
According to the present disclosure, the solar module of the present disclosure may further comprise a back sheet and a cover sheet, preferably, the back sheet is in contact with the first adhesive layer, and the cover sheet is in contact with the second adhesive layer; alternatively, the back sheet may be selected from one of a glass back sheet, an FPF back sheet, a KPK back sheet, a KPE and multi-layer PET back sheet, a tap back sheet, a TFB back sheet, a KFB back sheet, a BBF back sheet, an FFC back sheet, a KPC back sheet, and a KPF back sheet, and the cover sheet is selected from a glass cover sheet.
A second aspect of the present disclosure provides a method of manufacturing a solar module, comprising:
S1, sequentially laminating and paving a back plate, a first adhesive layer, a first release film, a solar cell, a second release film, a second adhesive layer and a cover plate to obtain a preassembled piece;
s2, laminating the preassembled piece;
the first adhesive layer is larger than the first release film in size, and the second adhesive layer is larger than the second release film in size; the size of the first release film is larger than that of the solar cell, and the size of the second release film is larger than that of the solar cell; the adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2; the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2.
Preferably, the adhesion force between the first release film and the first adhesive layer is 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 80-120N/cm 2. The release film and the adhesive layer have good bonding effect, so that the release film and the battery can be conveniently separated when the solar module is recovered.
The lay-up involved in the method of making a solar module of the present disclosure is preferably concentric lay-up. In the "the first glue layer size is greater than the first release film" related to the present disclosure, the specific related dimensional relationship is: in the laying process, the peripheral edge of the first adhesive layer exceeds the peripheral edge of the first release film in a horizontal relation.
According to the present disclosure, the first release film and the second release film are each independently selected from one of a polyethylene terephthalate film, a biaxially oriented polypropylene film, a polytetrafluoroethylene film, an ethylene-tetrafluoroethylene copolymer film, and a fluorinated ethylene propylene copolymer film, preferably a polyethylene terephthalate film release film.
According to the present disclosure, the lamination process may be a heat process under vacuum, and the conditions of the lamination process may include: the pressure is-80 to-40 Pa, the time is 10 to 30min, and the temperature is 130 to 150 ℃. Preferably, the temperature of the lamination process is 140 ℃.
According to the present disclosure, the method of manufacturing a solar module of the present disclosure may further include: series welding the battery pieces to form a solar battery; optionally, after the lamination of the first release film and the solar cell is laid, the solar cell and the first release film are fixed, and specifically, a light-transmitting adhesive tape may be used to fix the solar cell and the first release film.
The present disclosure is further illustrated in detail by the following examples. The starting materials used in the examples are all available commercially.
Example 1
The first adhesive layer 6 and the second adhesive layer 3 in this embodiment are ethylene-vinyl acetate adhesive layers, and the first release film 5 and the second release film 2 are polyethylene terephthalate film release films.
As shown in fig. 1, 4 solar cell strings 1 were formed by series welding 182mm solar cell sheets, and the obtained solar cell strings 1 had a size of 400mm. The method comprises the steps of paving a first adhesive layer 6 on a glass back plate 7, paving a first release film 5 on the first adhesive layer 6, paving a solar cell 1 on the first release film 5 and fixing the solar cell by using transparent adhesive tape, paving a second release film 2 on the solar cell 1, paving a second adhesive layer 3 on the second release film 2, and paving a glass cover plate 4 on the second release film 2 to obtain a preassembly. Wherein the lamination of the glass back plate 7, the first adhesive layer 6, the first release film 5, the solar cell 1, the second release film 2, the second adhesive layer 3 and the glass cover plate 4 is laid as concentric lamination. The dimensions of the first and second adhesive layers 6, 3 are 505mm by 505mm, the dimensions of the glass back sheet 7 and the glass cover sheet 4 are 500mm by 500mm, and the dimensions of the first and second release films 1,2 are 460mm by 460mm. Wherein, the adhesion force between the first release film 5 and the first adhesive layer 6 is 100N/cm 2, and the adhesion force between the second release film 2 and the second adhesive layer 3 is 100N/cm 2.
And after the first adhesive layer 6 and the second adhesive layer 3 are crosslinked and melted through lamination treatment, curing treatment is carried out on the preassembled piece, so that the solar cell is packaged to obtain the solar module. Exposing the manufactured solar module outdoors for one month to ensure that the battery is well packaged, the position is fixed and does not change, and the power attenuation is less than 1%; the hot knife is inserted between the two layers of glass, and the back plate glass and the cover plate glass are separated after a circle is wound, so that the complete battery piece can be taken out.
Comparative example 1
The first glue layer and the second glue layer in this embodiment are ethylene-vinyl acetate glue layers.
As shown in fig. 2,4 solar cell strings 1 were formed by series welding 182mm solar cell sheets, and the obtained solar cell strings 1 had a size of 400mm. The first glue layer 6 is laid on the glass back plate 7, the solar cell is laid on the first glue layer 6, the second glue layer 3 is laid on the solar cell 1, and the glass cover plate 4 is laid on the second glue layer 3, so that a preassembly is obtained. Wherein the laminate lay-up of the glass backsheet 7, the first glue layer 6, the solar cell 1, the second glue layer 3 and the glass cover plate 4 is a concentric laminate lay-up. The dimensions of the first glue layer 6 and the second glue layer 3 are 505mm x 505mm and the dimensions of the glass back plate 7 and the glass cover plate 4 are 500mm x 500mm.
And after the first adhesive layer 6 and the second adhesive layer 3 are crosslinked and melted through lamination treatment, curing treatment is carried out on the preassembled piece, so that the solar cell is packaged to obtain the solar module. Exposing the manufactured solar module outdoors for one month to ensure that the battery is well packaged, the position is fixed and does not change, and the power attenuation is less than 1%; the hot knife is inserted between the two layers of glass, and the back plate glass and the cover plate glass cannot be separated after a circle is wound, so that the complete battery piece cannot be taken out.
The preferred embodiments of the present disclosure have been described in detail above, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (14)
1. A solar module, comprising a first composite film, a solar cell and a second composite film which are laminated;
the first composite film comprises a first adhesive layer and a first release film bonded with the first adhesive layer; the second composite film comprises a second adhesive layer and a second release film adhered to the second adhesive layer, and the first release film and the second release film are respectively adhered to two surfaces of the solar cell;
the solar cell is positioned in a cavity formed by overlapping the first composite film and the second composite film, and is respectively attached to the first release film and the second release film under negative pressure, and the pressure of the cavity is-80 Pa to-40 Pa;
The adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2, and the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2.
2. The solar module of claim 1, wherein the adhesion of the first release film to the first adhesive layer is 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 80-120N/cm 2.
3. The solar module of claim 1, wherein the thickness of the first adhesive layer is 0.2-0.8mm and the thickness of the first release film is 0.02-0.15mm; the thickness of the second adhesive layer is 0.2-0.8mm, and the thickness of the second release film is 0.02-0.15mm.
4. The solar module of claim 1, wherein the first release film and the second release film are each independently selected from one of a polyethylene terephthalate film, a biaxially oriented polypropylene film, a polytetrafluoroethylene film, an ethylene-tetrafluoroethylene copolymer film, and a fluorinated ethylene propylene copolymer film.
5. The solar module of claim 4, wherein the first and second release films are polyethylene terephthalate films.
6. The solar module of claim 1, wherein the first and second adhesive layers are each independently selected from one of an ethylene vinyl acetate adhesive layer, an ethylene octene copolymer adhesive layer, an ethylene vinyl acetate and ethylene octene copolymer co-extruded composite adhesive layer.
7. The solar module of claim 6, wherein the first and second adhesive layers are ethylene vinyl acetate adhesive layers.
8. The solar module of claim 1, further comprising a back plate and a cover plate, the back plate being in contact with the first adhesive layer and the cover plate being in contact with the second adhesive layer;
The back plate is selected from one of a glass back plate, an FPF back plate, a KPK back plate, a KPE and multi-layer PET back plate, a TAPE back plate, a TFB back plate, a KFB back plate, a BBF back plate, an FFC back plate, a KPC back plate and a KPF back plate, and the cover plate is selected from a glass cover plate.
9. A method of making a solar module comprising:
S1, sequentially laminating and paving a back plate, a first adhesive layer, a first release film, a solar cell, a second release film, a second adhesive layer and a cover plate to obtain a preassembled piece;
s2, laminating the preassembled piece;
The first adhesive layer is larger than the first release film in size, and the second adhesive layer is larger than the second release film in size; the size of the first release film is larger than that of the solar cell, and the size of the second release film is larger than that of the solar cell;
The adhesion force between the first release film and the first adhesive layer is 50-150N/cm 2; the adhesion force between the second release film and the second adhesive layer is 50-150N/cm 2.
10. The method of claim 9, wherein the adhesive force between the first release film and the first adhesive layer is 80-120N/cm 2; the adhesion force between the second release film and the second adhesive layer is 80-120N/cm 2.
11. The method according to claim 9, wherein the first release film and the second release film are each independently selected from one of a polyethylene terephthalate film, a biaxially oriented polypropylene film, a polytetrafluoroethylene film, an ethylene-tetrafluoroethylene copolymer film, and a fluorinated ethylene propylene copolymer film; the first adhesive layer and the second adhesive layer are respectively and independently selected from one of an ethylene-vinyl acetate adhesive layer, an ethylene-octene copolymer adhesive layer and an ethylene-vinyl acetate and ethylene-octene copolymer co-extrusion type composite adhesive layer.
12. The production method according to claim 9, wherein the lamination process is a heat treatment under vacuum, and the conditions of the lamination process include: the pressure is-80 to-40 Pa, the time is 10 to 30min, and the temperature is 130 to 150 ℃.
13. The method of claim 9, wherein the lamination process is at a temperature of 140 ℃.
14. The method of manufacturing according to claim 9, further comprising: series welding the battery pieces to form the solar battery; and after the lamination of the first release film and the solar cell is laid, fixing the solar cell and the first release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211295819.6A CN115911164B (en) | 2022-10-21 | 2022-10-21 | Solar module and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211295819.6A CN115911164B (en) | 2022-10-21 | 2022-10-21 | Solar module and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN115911164A CN115911164A (en) | 2023-04-04 |
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| CN208352309U (en) * | 2018-07-06 | 2019-01-08 | 浙江晶科能源有限公司 | It is a kind of for extracting the photovoltaic module of battery strings and EVA assembly |
| CN111509069A (en) * | 2020-04-23 | 2020-08-07 | 苏州太阳井新能源有限公司 | Photovoltaic module |
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| WO2009114108A2 (en) * | 2008-03-08 | 2009-09-17 | Crystal Solar, Inc. | Integrated method and system for manufacturing monolithic panels of crystalline solar cells |
| CN106876511A (en) * | 2017-02-22 | 2017-06-20 | 苏州赛伍应用技术有限公司 | A kind of solar cell backboard |
| CN107393989A (en) * | 2017-07-05 | 2017-11-24 | 厦门冠宇科技股份有限公司 | The production technology of flexible monocrystaline silicon solar cell |
| CN208791537U (en) * | 2018-07-06 | 2019-04-26 | 广东弘擎电子材料科技有限公司 | A kind of battery edge covering joint adhesive tape |
| CN110970520A (en) * | 2018-09-29 | 2020-04-07 | 北京汉能光伏技术有限公司 | Solar cell packaging assembly and preparation method thereof |
| CN110328216A (en) * | 2019-07-12 | 2019-10-15 | 晶科能源有限公司 | A kind of photovoltaic module recovery method |
| CN111106185A (en) * | 2019-12-30 | 2020-05-05 | 江苏祺创光电集团有限公司 | Environment-friendly solar photovoltaic module |
| CN113972326B (en) * | 2021-12-24 | 2022-03-08 | 佛山仙湖实验室 | Perovskite solar cell module and packaging method thereof |
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| CN111509069A (en) * | 2020-04-23 | 2020-08-07 | 苏州太阳井新能源有限公司 | Photovoltaic module |
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