CN117080307A - Preparation method of solar cell module - Google Patents
Preparation method of solar cell module Download PDFInfo
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- CN117080307A CN117080307A CN202311124825.XA CN202311124825A CN117080307A CN 117080307 A CN117080307 A CN 117080307A CN 202311124825 A CN202311124825 A CN 202311124825A CN 117080307 A CN117080307 A CN 117080307A
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- 238000002360 preparation method Methods 0.000 title abstract description 26
- 239000002313 adhesive film Substances 0.000 claims abstract description 272
- 239000010410 layer Substances 0.000 claims abstract description 142
- 239000007788 liquid Substances 0.000 claims abstract description 123
- 238000004806 packaging method and process Methods 0.000 claims abstract description 103
- 239000012790 adhesive layer Substances 0.000 claims abstract description 68
- 238000003475 lamination Methods 0.000 claims abstract description 56
- 239000007787 solid Substances 0.000 claims abstract description 48
- 238000010030 laminating Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 59
- 238000005538 encapsulation Methods 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 33
- 230000000903 blocking effect Effects 0.000 claims description 29
- 229920002379 silicone rubber Polymers 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000004945 silicone rubber Substances 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000499 gel Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000007650 screen-printing Methods 0.000 claims description 6
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000008393 encapsulating agent Substances 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 17
- 238000001514 detection method Methods 0.000 description 12
- 238000002834 transmittance Methods 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 238000004383 yellowing Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
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- 230000003068 static effect Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/88—Passivation; Containers; Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- 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
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a preparation method of a solar cell module, which comprises the following steps: providing a first packaging layer; forming a water-blocking adhesive layer on one side of the first packaging layer; forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area at one side of the first packaging layer; paving a solar battery pack on the surface of one side of the first light-transmitting adhesive film, which is away from the first packaging layer; forming a liquid or semi-liquid semi-solid second transparent adhesive film on the surface of one side of the solar battery pack, which is far away from the first transparent adhesive film; a second packaging layer is arranged on one side, away from the first packaging layer, of the water-blocking adhesive layer and the second light-transmitting adhesive layer; and laminating the structure comprising the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, and after lamination, enabling the first light-transmitting adhesive film and the second light-transmitting adhesive film to be melted and then solidified, wherein the first light-transmitting adhesive film and the second light-transmitting adhesive film are both in contact with the water-blocking adhesive layer. The photoelectric conversion efficiency, the power and the reliability of the solar cell module formed by the preparation method are improved.
Description
Technical Field
The invention relates to the technical field of solar cell manufacturing, in particular to a preparation method of a solar cell module.
Background
Heterojunction cell technology is regarded as a high-efficiency technical route which attracts high attention in industry in recent years, is a final solution of future cell technology accepted in industry because of high power, high photoelectric conversion efficiency, excellent performance and large cost reduction space, and is once called as a leading edge technology of next-generation commercial photovoltaic production in industry, but the efficiency of a high-efficiency heterojunction solar cell pack cannot be fully utilized after a solar cell module is formed through encapsulation. On one hand, the glass transmittance is at most about 94.3%, and the packaging adhesive film transmittance is at most about 90%; on the other hand, the ITO material used in the transparent conductive layer (TCO layer) of the heterojunction solar cell is very sensitive to water vapor, obvious electrical property loss can occur when the ITO material meets water vapor, so that the power of the solar cell module is reduced.
Accordingly, there is a need to provide a solar cell module having higher photoelectric conversion efficiency and reliability, and accordingly, there is a need to improve the manufacturing method.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of low photoelectric conversion efficiency and reliability of the solar cell module formed by the existing preparation method of the solar cell module, and further provide a preparation method of the solar cell module.
The invention provides a preparation method of a solar cell module, which comprises the following steps: providing a first packaging layer, wherein the first packaging layer comprises a battery pack placement area and an edge area surrounding the battery pack placement area; forming a water-blocking adhesive layer in an edge area of one side of the first packaging layer; forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area at one side of the first packaging layer, wherein the first light-transmitting adhesive film and the water-blocking adhesive film are positioned at the same side of the first packaging layer; paving a solar battery pack on the surface of one side of the first light-transmitting adhesive film, which is away from the first packaging layer; forming a liquid or semi-liquid semi-solid second transparent adhesive film on the surface of one side of the solar battery pack, which is away from the first transparent adhesive film; a second packaging layer is arranged on one side, away from the first packaging layer, of the water blocking adhesive layer and the second light-transmitting adhesive film, and the thickness of the water blocking adhesive layer is equal to or larger than the distance from the surface, away from the first packaging layer, of the second light-transmitting adhesive film to the first packaging layer; and laminating the structure comprising the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, wherein the first light-transmitting adhesive film and the second light-transmitting adhesive film are melted and then solidified after lamination, and the first light-transmitting adhesive film and the second light-transmitting adhesive film are contacted with the water blocking adhesive layer.
Optionally, in the step of forming a liquid or semi-liquid semi-solid first transparent adhesive film in the battery pack placement area at one side of the first packaging layer, a gap is formed between the first transparent adhesive film and the water-blocking adhesive layer; and in the step of laminating the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, the first light-transmitting adhesive film and/or the second light-transmitting adhesive film fill the gap.
Optionally, the width dimension of the gap is 2 mm-8 mm.
Optionally, the thickness of the water blocking adhesive layer is 0.2 mm-0.5 mm greater than the distance from the surface of one side of the second transparent adhesive film, which is away from the first packaging layer, to the first packaging layer.
Optionally, the viscosity of the liquid or semi-liquid semi-solid first transparent adhesive film is 40000 mpa.s-60000 mpa.s; the viscosity of the second transparent adhesive film in liquid or semi-liquid semi-solid state is 40000 mpa.s-60000 mpa.s.
Optionally, the process adopted for forming the liquid or semi-liquid semi-solid first transparent adhesive film comprises a spraying process or a screen printing process; the process adopted for forming the liquid or semi-liquid semi-solid second transparent adhesive film comprises a spraying process or a screen printing process.
Optionally, the process adopted for forming the liquid or semi-liquid semi-solid first transparent adhesive film comprises a spraying process; in the step of forming the liquid or semi-liquid semi-solid first transparent adhesive film: spraying along the first direction and the second direction in a staggered manner; the first direction is perpendicular to the second direction; the process adopted for forming the second transparent adhesive film in the liquid state or semi-liquid semi-solid state comprises a spraying process; in the step of forming the second transparent adhesive film in a liquid state or semi-liquid semi-solid state: spraying along the first direction and the second direction in a staggered manner; the first direction is perpendicular to the second direction.
Optionally, the parameters for laminating the first encapsulation layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second encapsulation layer include: the lamination temperature was: 70-120 ℃; the laminating time is as follows: 660 s-700 s, and the laminating pressure is 35 kPa-75 kPa.
Optionally, the laminating the first encapsulation layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second encapsulation layer includes: the first lamination, the second lamination and the third lamination are sequentially performed, and the pressure of the first lamination, the second lamination and the third lamination is decreased.
Alternatively, the pressure of the first lamination is 65kPa to 75kPa; the pressure of the second lamination is 45kPa to 55kPa; the pressure of the third lamination is 35kPa to 45kPa.
Optionally, the time of the first lamination is 15 s-25 s; the time of the second lamination is 15 s-25 s; the third lamination time is 630 s-650 s.
Optionally, in the step of forming a liquid or semi-liquid semi-solid first transparent adhesive film in the battery pack placement area at one side of the first packaging layer, the thickness of the first transparent adhesive film is 0.3 mm-0.8 mm; in the step of forming a second transparent adhesive film in a liquid state or semi-liquid semi-solid state on the surface of one side of the solar battery pack, which is far away from the first transparent adhesive film, the thickness of the second transparent adhesive film is 0.3-0.8 mm.
Optionally, the material of the first transparent adhesive film includes at least one of liquid silica gel, liquid silicone rubber, liquid gum, gel, organic silicone gel, silicone gum, silicone rubber, liquid raw material, silicone rubber sizing material and silicone rubber raw material; the material of the second light-transmitting adhesive film comprises at least one of liquid silica gel, liquid silicone rubber, liquid rubber, gel, organic silicone gel, silicone body rubber, silicone rubber, liquid raw material, silicone rubber sizing material and silicone rubber raw material.
Optionally, before laminating the first packaging layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second packaging layer, the width of the water blocking adhesive layer is 2 mm-15 mm, and the thickness of the water blocking adhesive layer is 0.5 mm-3.5 mm.
Optionally, the material of the water-blocking adhesive layer comprises any one of isobutene polymer and isoprene polymer.
The technical scheme of the invention has the following advantages:
according to the preparation method of the solar cell module, a water-blocking adhesive layer is formed in the edge area of one side of the first packaging layer; forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area at one side of the first packaging layer, wherein the first light-transmitting adhesive film and the water-blocking adhesive film are positioned at the same side of the first packaging layer; paving a solar battery pack on the surface of one side of the first light-transmitting adhesive film, which is away from the first packaging layer; forming a liquid or semi-liquid semi-solid second transparent adhesive film on the surface of one side of the solar battery pack, which is away from the first transparent adhesive film; a second packaging layer is arranged on one side, away from the first packaging layer, of the water blocking adhesive layer and the second light-transmitting adhesive film, and the thickness of the water blocking adhesive layer is equal to or larger than the distance from the surface, away from the first packaging layer, of the second light-transmitting adhesive film to the first packaging layer; laminating the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, and enabling the first light-transmitting adhesive film and the second light-transmitting adhesive film to be melted and then solidified after lamination, wherein the first light-transmitting adhesive film and the second light-transmitting adhesive film are in contact with the water blocking adhesive layer. Firstly, the first light-transmitting adhesive film and the second light-transmitting adhesive film have the characteristics of high light transmittance and no yellowing, so that the light transmittance, the photoelectric conversion efficiency and the power of the solar cell module can be improved; secondly, the first light-transmitting adhesive film and the second light-transmitting adhesive film have ageing-resistant characteristics, and the first light-transmitting adhesive film, the second light-transmitting adhesive film and the water-blocking adhesive layer form a closed and insulating space, so that outside water vapor, dust and the like can be effectively prevented from being immersed into the solar cell module, and the water vapor resistance and the weather resistance of the solar cell module are improved; and the first light-transmitting adhesive film and the second light-transmitting adhesive film have the characteristic of softness, and when the solar cell module is subjected to mechanical collision, the first light-transmitting adhesive film and the second light-transmitting adhesive film can play a role in buffering and protecting the solar cell module, so that the reliability of the solar cell module is high. In conclusion, the solar cell module formed by the preparation method of the solar cell module has high photoelectric conversion efficiency, power and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for manufacturing a solar cell module according to an embodiment of the present invention;
fig. 2 to 9 are schematic structural diagrams illustrating a process for manufacturing a solar cell module according to an embodiment of the invention;
fig. 10 is a graph showing the comparison of the spectral response degree of a solar cell module formed by the preparation method of the solar cell module provided in this embodiment and a solar cell module formed by conventional high-permeability film encapsulation.
Reference numerals illustrate:
1-a first encapsulation layer; 11-battery placement area; 12-edge region; 13-a water-blocking adhesive layer;
21-a first light-transmitting adhesive film;
3-solar cell group;
22-a second light-transmitting adhesive film;
4-a second encapsulation layer;
l-gap; x-a first direction; y-second direction.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment provides a method for manufacturing a solar cell module, referring to fig. 1, including the following steps:
step S1: providing a first packaging layer, wherein the first packaging layer comprises a battery pack placement area and an edge area surrounding the battery pack placement area;
step S2: forming a water-blocking adhesive layer in an edge area of one side of the first packaging layer;
step S3: forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area at one side of the first packaging layer, wherein the first light-transmitting adhesive film and the water-blocking adhesive film are positioned at the same side of the first packaging layer;
step S4: paving a solar battery pack on the surface of one side of the first light-transmitting adhesive film, which is away from the first packaging layer;
step S5: forming a liquid or semi-liquid semi-solid second transparent adhesive film on the surface of one side of the solar battery pack, which is away from the first transparent adhesive film;
step S6: a second packaging layer is arranged on one side, away from the first packaging layer, of the water blocking adhesive layer and the second light-transmitting adhesive film, and the thickness of the water blocking adhesive layer is equal to or larger than the distance from the surface, away from the first packaging layer, of the second light-transmitting adhesive film to the first packaging layer;
Step S7: and laminating the structure comprising the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, wherein the first light-transmitting adhesive film and the second light-transmitting adhesive film are melted and then solidified after being laminated, and the first light-transmitting adhesive film and the second light-transmitting adhesive film are contacted with the water-blocking adhesive layer.
According to the preparation method of the solar cell module, the first light-transmitting adhesive film and the second light-transmitting adhesive film are in contact with the water-blocking adhesive layer, firstly, the first light-transmitting adhesive film and the second light-transmitting adhesive film have the characteristics of high light transmittance and no yellowing, so that the light transmittance, the photoelectric conversion efficiency and the power of the solar cell module can be improved, secondly, the first light-transmitting adhesive film and the second light-transmitting adhesive film have the aging resistance, and the first light-transmitting adhesive film, the second light-transmitting adhesive film and the water-blocking adhesive layer form a closed and insulating space, so that external water vapor, dust and the like can be effectively prevented from being immersed into the solar cell module, and the water vapor blocking performance and the weather resistance of the solar cell module are improved; and the first light-transmitting adhesive film and the second light-transmitting adhesive film have the characteristic of softness, and when the solar cell module is subjected to mechanical collision, the first light-transmitting adhesive film and the second light-transmitting adhesive film can play a role in buffering and protecting the solar cell module, so that the reliability of the solar cell module is high. In conclusion, the solar cell module formed by the preparation method of the solar cell module has high photoelectric conversion efficiency, power and reliability.
And in the step of laminating the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, the gaps are filled with the first light-transmitting adhesive film and/or the second light-transmitting adhesive film. The gap is filled with the first transparent adhesive film and the second transparent adhesive film which have the characteristics of high light transmittance and no yellowing, and when the solar battery pack fully utilizes illumination, the first transparent adhesive film and the second transparent adhesive film at the side part can improve the utilization rate of the illumination from the side part, so that the photoelectric conversion efficiency of the solar battery pack is improved.
The method of manufacturing the solar cell module is described in detail below with reference to fig. 2 to 9.
Referring to fig. 2, a first encapsulation layer 1 is provided, the first encapsulation layer 1 including a battery pack placement area 11 and an edge area 12 surrounding the battery pack placement area 11.
In one embodiment, the first encapsulation layer 1 includes glass, which is a photovoltaic glass commonly used in the photovoltaic industry.
Referring to fig. 3, a water blocking adhesive layer 13 is formed at an edge region 12 of one side of the first encapsulation layer 1.
In one embodiment, the water blocking adhesive layer 13 is formed by a manner of applying a glue to a barrel or a manner of directly applying a tape.
In one embodiment, the water-blocking adhesive layer 13 includes a transparent water-blocking adhesive layer and a non-transparent water-blocking adhesive layer.
In one embodiment, the width of the water-blocking adhesive layer 13 is 2mm to 15mm, such as 3mm, 5mm, 8mm, 10mm, 12mm or 14mm; if the width of the water-blocking adhesive layer 13 is smaller than 2mm, if the width of the water-blocking adhesive layer is smaller than 2mm, the water-blocking adhesive layer plays a role in preventing water vapor and dust in the environment from penetrating into the solar battery pack through the water-blocking adhesive layer; if the width of the water-blocking adhesive layer 13 is greater than 15mm, the width of the water-blocking adhesive layer is too large, which may cause overflow of the water-blocking adhesive layer during lamination, resulting in waste.
In one embodiment, the thickness of the water-blocking adhesive layer 13 is 0.5mm to 3.5mm, for example 1mm, 1.5mm, 2mm, 2.5mm or 3mm; if the thickness of the water-blocking adhesive layer 13 is smaller than 0.5mm, the degree of the solar battery pack in a completely closed environment is smaller due to the fact that the thickness of the water-blocking adhesive layer is too small, and the effect of blocking water vapor is smaller; if the thickness of the water-blocking adhesive layer 13 is greater than 3.5mm, adhesive overflows easily in the lamination process, and resource waste is caused.
In one embodiment, the material of the water-blocking adhesive layer 13 includes any one of isobutene polymer and isoprene polymer; in other embodiments, the material of the water-blocking adhesive layer may further include other butyl adhesive materials with high-performance water vapor blocking capability and anti-aging capability.
Referring to fig. 4, a first transparent adhesive film 21 in a liquid or semi-liquid semi-solid state is formed in the battery pack placement area 11 at one side of the first encapsulation layer 1, and the first transparent adhesive film 21 and the water blocking adhesive layer 13 are located at the same side of the first encapsulation layer 1.
In one embodiment, the material of the first transparent adhesive film 21 includes at least one of liquid silica gel, liquid silicone rubber, liquid adhesive, gel, organic silicone gel, silicone gum, silicone rubber, liquid raw material, silicone gum and silicone rubber raw material.
In one embodiment, with continued reference to fig. 4, in the step of forming the first transparent adhesive film in a liquid or semi-liquid semi-solid state in the battery pack placement area 11 at one side of the first encapsulation layer 1, a gap L is provided between the first transparent adhesive film 21 and the water blocking adhesive layer 13.
In one embodiment, the gap L has a dimension of 2mm to 8mm, such as 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5.5mm, or 6.5mm; if the gap L between the first transparent adhesive film 21 and the water-blocking adhesive layer 13 is smaller than 2mm, the water-blocking adhesive layer may overflow onto the first transparent adhesive film during lamination; if the gap L between the first transparent adhesive film 21 and the water-blocking adhesive film 13 is greater than 8mm, in the finally formed solar cell module, there may still be a gap between the water-blocking adhesive film and the first transparent adhesive film and between the water-blocking adhesive film and the second transparent adhesive film, which may cause bubbles to be formed easily, thereby affecting the appearance and weather resistance of the solar cell module. In order to avoid air bubbles between the water-blocking adhesive layer and the first transparent adhesive film and between the water-blocking adhesive layer and the second transparent adhesive film after lamination, before the battery pack placement area on one side of the first packaging layer forms the first transparent adhesive film in a liquid state or semi-liquid semi-solid state, and before the surface on one side of the solar battery pack, which is far away from the first transparent adhesive film, forms the second transparent adhesive film in a liquid state or semi-liquid semi-solid state, the solar battery pack further comprises: and removing bubbles from the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film, wherein the mode of removing bubbles comprises the mode of combining vacuumizing and baking, centrifuging or standing the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film. Wherein the time of the static treatment is 30 minutes to 2 hours, and the static treatment can enable bubbles in the material of the first transparent adhesive film and the material of the second transparent adhesive film to float to the surface and be discharged; the centrifugation mode is as follows: the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film are stirred for 2 to 3 minutes in the clockwise direction, the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film are placed for 520 minutes to automatically defoam after being stirred uniformly, the method is only aimed at the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film with thinner viscosity, and if the material of the first light-transmitting adhesive film and the material of the second light-transmitting adhesive film are thick, bubbles remained in the materials are not easy to rise and discharge. In addition, the method of combining vacuumizing and baking is also beneficial to volatilizing impurities in the materials of the first transparent adhesive film and the second transparent adhesive film.
In one embodiment, in the step of forming the first transparent adhesive film 21 in a liquid or semi-liquid semi-solid state in the battery pack placement area 11 at one side of the first encapsulation layer 1, the thickness of the first transparent adhesive film 21 is 0.3mm to 0.8mm, for example, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm or 0.65mm; if the thickness of the first transparent adhesive film 21 is less than 0.3mm, the effect of the first transparent adhesive film on buffering and protecting the solar cell module is not obvious when the solar cell module is mechanically collided; if the thickness of the first transparent adhesive film 21 is greater than 0.8mm, the first transparent adhesive film is easy to overflow during the lamination process, resulting in resource waste.
In one embodiment, the process adopted to form the liquid or semi-liquid semi-solid first transparent adhesive film comprises a spraying process or a screen printing process, and the spraying process comprises a barrel adhesive spraying mode or an adhesive dispensing mode.
In one embodiment, the viscosity of the liquid or semi-liquid semi-solid first transparent adhesive film is 40000mpa.s to 60000mpa.s, for example 45000mpa.s, 50000mpa.s or 5500 mpa.s, and if the viscosity of the liquid or semi-liquid semi-solid first transparent adhesive film is less than 40000mpa.s, the viscosity of the first transparent adhesive film is too low, which may cause the curing time to be too long; if the viscosity of the liquid or semi-liquid semi-solid first transparent adhesive film is larger than 60000mpa.s, the viscosity of the first transparent adhesive film is too high to cause poor fluidity, the curing time is too short, and the effect of automatically filling the gaps between the battery plates is not obvious. Therefore, the viscosity of the first transparent adhesive film is 40000 mpa.s-60000 mpa.s, and the effects of short curing time and filling gaps between adjacent battery pieces in the solar battery pack can be achieved.
In one embodiment, referring to fig. 4 and 5 in combination, the process employed to form the liquid or semi-liquid semi-solid first clear adhesive film comprises a spray coating process; in the step of forming the liquid or semi-liquid semi-solid first transparent adhesive film: spraying is performed in a staggered manner along a first direction X and a second direction Y; the first direction X is perpendicular to the second direction Y; the first direction X is parallel to the side edge of the first packaging layer.
Referring to fig. 6, a solar cell set 3 is laid on a surface of the first transparent adhesive film 21 facing away from the first encapsulation layer 1. In the process that the solar battery pack 3 is paved on one side surface of the first transparent adhesive film 21, which is far away from the first packaging layer 1, the first packaging layer and the first transparent adhesive film are kept horizontally, the solar battery pack is adsorbed by a sucker, and after accurate positioning, the solar battery pack is placed on one side surface of the first transparent adhesive film 21, which is far away from the first packaging layer 1, and is positioned in the battery pack placement area 11.
In one embodiment, the forming step of the solar cell set 3 includes: arranging solar cells cut by laser in sequence through a series welding machine, wherein each solar cell comprises half cells, and then welding the solar cells in series through an interconnection strip; after welding, forming a plurality of series solar cell strings; sequentially arranging a plurality of series solar cell strings in sequence according to the electrode sequence through a typesetter to finish the laying of a plurality of series solar cell strings, connecting the solar cell strings in parallel through bus bars for a stitch welding machine, and leaving leads for being convenient to be installed with junction boxes in the following procedures, and forming a solar cell string matrix after the completion of the stitch welding; and positioning the solar cell array by using the adhesive tape, and positioning the solar cell array to form the solar cell set.
In one embodiment, the solar cell comprises a double-sided heterojunction solar cell without main grid line printing, wherein a transparent conductive film (TCO) is arranged on the surface of the solar cell, and the transparent conductive film is an ITO film or an AZO film; the bus bar is a welding belt commonly used in the photovoltaic industry.
In one embodiment, after the solar cell set 3 is laid on the surface of the side of the first transparent adhesive film 21 facing away from the first encapsulation layer 1, the method further includes: the defect detection is carried out on the solar cell set 3, and the defective solar cell set is reworked, so that compared with the defect detection carried out after the solar cell assembly is formed, the operation is beneficial to avoiding causing a large amount of repeated reworking workload, reducing the labor cost, improving the utilization rate and the production efficiency of a production line and reducing the reworking cost.
Performing defect detection on the solar battery pack includes: appearance detection, hidden crack detection and cold joint detection, wherein the appearance detection is used for detecting whether the solar battery pack is damaged or not, the hidden crack detection is used for detecting whether the solar battery in the solar battery pack is cracked or not, and the cold joint detection is used for detecting whether cold joint exists between the solar battery in the solar battery pack and the welding strip or not.
In one embodiment, when the hidden crack detection is performed on the solar cell set, if the solar cell in the solar cell set has a crack, the solar cell set with the crack needs to be repaired until the solar cell set is inspected to be qualified.
In another embodiment, when the dummy solder joint detection is performed on the solar cell set, if the dummy solder joint exists between the solar cell and the solder strip in the solar cell set, the dummy solder joint position between the solar cell with the dummy solder joint and the solder strip is required to be re-soldered until the solar cell set is inspected to be qualified.
Referring to fig. 7, a second transparent adhesive film 22 in a liquid or semi-liquid state is formed on a surface of one side of the solar cell set 3 facing away from the first transparent adhesive film 21.
In one embodiment, the material of the second transparent adhesive film 22 includes at least one of liquid silica gel, liquid silicone rubber, liquid gum, gel, silicone gum, silicone rubber, liquid raw material, silicone gum, and silicone rubber raw material.
In one embodiment, in the step of forming the second transparent adhesive film 22 in a liquid or semi-liquid semi-solid state on the surface of the side of the solar battery pack 3 facing away from the first transparent adhesive film 21, the thickness of the second transparent adhesive film 22 is 0.3mm to 0.8mm, for example, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm or 0.65mm; if the thickness of the second transparent adhesive film 22 is less than 0.3mm, the effect of the second transparent adhesive film on buffering and protecting the solar cell module is not obvious when the solar cell module is mechanically collided; if the thickness of the second transparent adhesive film 22 is greater than 0.8mm, the second transparent adhesive film is easy to overflow during the lamination process, resulting in resource waste.
In one embodiment, the thickness of the water-blocking adhesive layer is 0.2 mm-0.5 mm, for example 0.3mm, larger than the distance from one side surface of the second transparent adhesive film, which deviates from the first packaging layer, to the first packaging layer, so that the first transparent adhesive film, the second transparent adhesive film and the water-blocking adhesive layer form a closed and insulated space, external water vapor, dust and the like can be effectively prevented from being immersed into the solar cell module, and the water vapor blocking performance and the weather resistance of the solar cell module are improved.
In one embodiment, the process used to form the second transparent adhesive film 22 in a liquid or semi-liquid semi-solid state includes a spraying process or a screen printing process, and the spraying process includes a barrel adhesive dispensing mode or a dispensing mode.
In one embodiment, the viscosity of the second transparent adhesive film in the liquid or semi-liquid state is 40000mpa.s to 60000mpa.s, for example 45000mpa.s, 50000mpa.s or 5500 mpa.s, and if the viscosity of the second transparent adhesive film in the liquid or semi-liquid state is less than 40000mpa.s, the viscosity of the second transparent adhesive film is too low, which may cause the curing time to be too long; if the viscosity of the liquid or semi-liquid semi-solid second transparent adhesive film is larger than 60000mpa.s, the viscosity of the second transparent adhesive film is too high to cause poor fluidity, the curing time is too short, and the effect of automatically filling the gaps between the battery plates is not obvious. In the embodiment, the viscosity of the second transparent adhesive film is selected to be 40000 mpa.s-60000 mpa.s, so that the effects of short curing time and filling the gaps between the battery plates can be achieved.
In one embodiment, the process employed to form the liquid or semi-liquid semi-solid second light transmissive film comprises a spray process; in the step of forming the second transparent adhesive film in a liquid state or semi-liquid semi-solid state: spraying along the first direction and the second direction in a staggered manner; the first direction is perpendicular to the second direction, and the first direction is parallel to the side edge of the first packaging layer.
Referring to fig. 8, a second encapsulation layer 4 is disposed on a side of the water blocking adhesive layer 13 and the second transparent adhesive film 22 facing away from the first encapsulation layer 1. Specifically, a glass combining machine or a paving machine is adopted to set a second packaging layer 4 on one side of the water-blocking adhesive layer 13 and the second transparent adhesive film 22, which is away from the first packaging layer 1, and the first packaging layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second packaging layer form a solar battery module lamination.
In one embodiment, the second encapsulation layer 4 includes glass, which is a photovoltaic glass commonly used in the photovoltaic industry.
Referring to fig. 9, fig. 9 is a schematic diagram of the laminated first packaging layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second packaging layer in fig. 8, wherein the laminated first transparent adhesive film, the laminated second transparent adhesive film and the water blocking adhesive layer form a sealing package for the solar battery pack, the laminated first packaging layer, the laminated first transparent adhesive film, the laminated solar battery pack, the laminated second transparent adhesive film and the laminated second packaging layer are simultaneously melted and solidified, and the laminated first transparent adhesive film and the laminated second transparent adhesive film are in contact with the water blocking adhesive layer.
In one embodiment, after the second encapsulation layer 4 is disposed on the side of the water-blocking adhesive layer 13 and the second transparent adhesive film 22 facing away from the first encapsulation layer 1, before laminating the first encapsulation layer, the first transparent adhesive film, the solar cell stack, the second transparent adhesive film and the second encapsulation layer, the method further includes: and (3) detecting defects of the solar cell module laminated piece, if a problem is found, placing and repairing unqualified solar cell module laminated piece on a repairing table in time, removing the defects before the first packaging layer, the first transparent adhesive film, the solar cell group, the second transparent adhesive film and the second packaging layer are laminated, laminating the solar cell module laminated piece after finishing, detecting and repairing the whole laminated solar cell module, and strictly ensuring the quality of products. Therefore, the difficulty of separating the first packaging layer from the second packaging layer during repairing is reduced, and the probability of hidden cracking and breaking of the solar battery pack caused by overlarge force during separating is also reduced, so that the packaging efficiency and the yield of the preparation method of the solar battery pack are high. The solar cell module requires pre-lamination inspection to ensure that defective products can be reworked. The laminate after lamination cannot be reworked and the quality level can only be confirmed by inspection and identification of the solar module.
In one embodiment, before laminating the first encapsulation layer, the first transparent adhesive film, the solar cell stack, the second transparent adhesive film and the second encapsulation layer, the method further comprises: and (3) vacuumizing the cavity of the laminating machine, wherein the vacuumizing time is 280 s-320 s, such as 290s, 300s or 310s, and if the vacuumizing time is less than 280s, the gas in the battery assembly lamination is not completely pumped out, so that the first transparent adhesive film and the solar battery pack, the second transparent adhesive film and the solar battery pack are easily caused, the first packaging layer and the first transparent adhesive film are arranged, and bubbles exist between the second packaging layer and the second transparent adhesive film, so that the appearance and weather resistance of the solar battery assembly are affected.
In one embodiment, the parameters for laminating the first encapsulation layer 1, the first transparent adhesive film 21, the solar cell set 3, the second transparent adhesive film 22 and the second encapsulation layer 4 include: the lamination temperature was: 70-120 ℃, e.g. 100 ℃; the laminating time is as follows: 660s to 700s, such as 690s; the lamination pressure is 35kPa to 75kPa, for example 70kPa.
In one embodiment, the process of laminating the first encapsulation layer 1, the first transparent adhesive film 21, the solar cell set 3, the second transparent adhesive film 22 and the second encapsulation layer 4 includes: the first lamination, the second lamination and the third lamination are sequentially performed, and the pressure of the first lamination, the second lamination and the third lamination is decreased. The time for the first lamination is 15s to 25s, for example 20s; the pressure of the first lamination is 65kPa to 75kPa, such as 70kPa; the time of the second lamination is 15s to 25s, for example 20s; the pressure of the second lamination is 45kPa to 55kPa, such as 50kPa; the third lamination takes 630s to 650s, such as 640s; the pressure of the third lamination is 35kPa to 45kPa, for example 40kPa. The first encapsulation layer 1, the first transparent adhesive film 21, the solar battery pack 3, the second transparent adhesive film 22 and the second encapsulation layer 4 are laminated and divided into three layers, which is beneficial to curing the first transparent adhesive film 21 and the second transparent adhesive film 22 completely.
In one embodiment, after laminating the first encapsulation layer 1, the first transparent adhesive film 21, the solar cell set 3, the second transparent adhesive film 22 and the second encapsulation layer 4, the method further includes: and performing appearance detection and trimming treatment on the laminated battery assembly lamination.
In one embodiment, the first transparent adhesive film and the second transparent adhesive film are both type a and type B mixed adhesive, and the mixing ratio is 1:1, single A type or B type glue does not solidify, the time needed for solidifying at room temperature of 25 ℃ is more than 6 hours after mixing, when the lamination temperature is more than 70 ℃, the light transmittance of liquid silica gel is more than 94%, the yellowing index and the haze are less than 0.2%, and the volume shrinkage is less than 0.1%.
In one embodiment, the method for manufacturing a solar cell module further includes: providing a packaging frame (not shown in the drawings), wherein the packaging frame is provided with a containing cavity, and a frame glue is formed on the inner wall surface of the containing cavity; thereafter, the edge regions of the laminated battery assembly are nested in the receiving chamber.
In one embodiment, before the second encapsulation layer 4 is disposed on the side of the water blocking adhesive layer 13 and the second transparent adhesive film 22 facing away from the first encapsulation layer 1, the method further includes: the wire leading holes are formed, the number of the wire leading holes is 3, the 3 wire leading holes are distributed at intervals, the diameter of any wire leading hole is 9-13 mm, centrifugal paper is paved on one side surface of the second packaging layer, which is away from the first packaging layer, the wire leading holes are covered by the centrifugal paper, a channel allowing bus bars to pass through is formed in the centrifugal paper, the centrifugal paper is made of a high-temperature resistant material, and the centrifugal paper does not shrink or melt under the high-temperature condition, such as 150 ℃. The lead hole also penetrates through the second packaging layer and the second transparent adhesive film in the direction perpendicular to the first packaging layer 1, and the bus bar penetrates through the lead hole in the process that the second packaging layer 4 is arranged on one side of the water-blocking adhesive layer 13 and the second transparent adhesive film 22, which is away from the first packaging layer 1; and forming sealing filling glue in the lead hole, and then curing the sealing filling glue. In one embodiment, the method for manufacturing a solar cell module further comprises a power testing and final inspection procedure.
The first light-transmitting adhesive film and the second light-transmitting adhesive film formed after the liquid silica gel is solidified can convert ultraviolet band light into visible light, have the characteristics of high light transmittance, aging resistance, no yellowing and softness, and the light transmittance of about 94% of glass can be achieved by the first light-transmitting adhesive film and the second light-transmitting adhesive film formed after the liquid silica gel is solidified, so that the full utilization of illumination can be realized.
Referring to table 1, the preparation method of the solar cell module provided in this embodiment can effectively improve the water blocking property of the solar cell module and the optical gain of the solar cell module, and also can improve the reliability and power of the solar cell module, and the simulation test results show that the service life of the solar cell module can be prolonged to more than 40 years. In table 1, different test items are performed on the solar cell modules provided in the two groups of embodiments, and different test parameters are obtained. Wherein, "initial" refers to testing electrical performance parameters of the solar cell module without any treatment; "DH1000h" refers to a test of an electrical performance parameter after a solar cell module has been subjected to a humid heat aging test for 1000 hours, and "DH1000h" decay "refers to a change of an electrical performance parameter after a solar cell module has been subjected to a humid heat aging test for 1000 hours, as compared to after the solar cell module has not been subjected to any treatment; "TC200" refers to the temperature cycling of the solar module, after a total of 200 cycles, for electrical performance parameter testing, and "TC200 decay" refers to the change in electrical performance parameter after 200 cycles of temperature cycling of the solar module, and after no treatment of the solar module; "PID288 h" refers to a test of an electrical performance parameter after 288 hours of potential induced decay of the solar cell module, and "PID288h decay" refers to a change of an electrical performance parameter after 288 hours of potential induced decay of the solar cell module and after no treatment of the solar cell module; the "UV120" is a test of electrical performance parameters after ultraviolet irradiation of the solar cell module, the irradiation power is 120kWh, and the "UV120 decay" is a change of electrical performance parameters after ultraviolet irradiation of the solar cell module, the irradiation power is 120kWh and after no treatment is performed on the solar cell module. In the test parameters, isc refers to a short-circuit current, voc refers to an open-circuit voltage, imp refers to a current of a maximum power point, vmp refers to a voltage of the maximum power point, pmax refers to a maximum power temperature coefficient, and FF refers to a fill factor.
TABLE 1
The test data in table 1 shows that, in order to perform an environmental aging test according to the IEC test standard, from the parameters of "DH1000h attenuation", "TC200 attenuation", "PID288h attenuation" and "UV120 attenuation", the test result shows that the power attenuation of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is far less than the IEC test requirement standard, so that it can be seen that the solar cell module formed by the preparation method of the solar cell module has excellent anti-aging performance, and can significantly increase the reliability of the solar cell module.
Referring to table 2, table 2 shows that the short-circuit current parameter of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is higher by 1.4%, the spectrum of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is higher by 2.5%, the spectrum of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is higher by 1.3%, the spectrum of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is higher by 780.3%, the spectrum of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment is lower by 1.5%, and the spectrum of the solar cell module formed by the preparation method of the solar cell module provided by this embodiment provided by the preparation method of the solar cell module provided by this embodiment is higher by 300nm to 1200nm, the photoelectric conversion efficiency is higher by 1.5%. The power of the assembly is increased as a whole.
TABLE 2
Referring to fig. 10, fig. 10 is a graph showing the spectral response of a solar cell module formed by the method for manufacturing a solar cell module according to the present embodiment and a solar cell module formed by packaging a conventional high-permeability film, wherein the abscissa in fig. 10 represents the wavelength, and the ordinate represents the spectral response, and the spectral response represents the capability of the solar cell to convert incident light energy with different wavelengths into electric energy, and the unit is Amp/Watt (Amp/Watt). As can be seen from fig. 10, in the ultraviolet band from 400nm to 1080nm, the internal quantum efficiency of the solar cell module formed by the preparation method of the solar cell module provided by the embodiment is obviously better than that of the solar cell module formed by the conventional high-permeability film encapsulation, so that the photoelectric conversion efficiency of the solar cell module formed by the preparation method of the solar cell module provided by the embodiment is more intuitively reflected to be better than that of the solar cell module formed by the conventional high-permeability film encapsulation.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A method of manufacturing a solar cell module, comprising:
providing a first packaging layer, wherein the first packaging layer comprises a battery pack placement area and an edge area surrounding the battery pack placement area;
forming a water-blocking adhesive layer in an edge area of one side of the first packaging layer;
forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area at one side of the first packaging layer, wherein the first light-transmitting adhesive film and the water-blocking adhesive film are positioned at the same side of the first packaging layer;
paving a solar battery pack on the surface of one side of the first light-transmitting adhesive film, which is away from the first packaging layer;
forming a liquid or semi-liquid semi-solid second transparent adhesive film on the surface of one side of the solar battery pack, which is away from the first transparent adhesive film;
a second packaging layer is arranged on one side, away from the first packaging layer, of the water blocking adhesive layer and the second light-transmitting adhesive film, and the thickness of the water blocking adhesive layer is equal to or larger than the distance from the surface, away from the first packaging layer, of the second light-transmitting adhesive film to the first packaging layer;
and laminating the structure comprising the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, wherein the first light-transmitting adhesive film and the second light-transmitting adhesive film are melted and then solidified after lamination, and the first light-transmitting adhesive film and the second light-transmitting adhesive film are contacted with the water blocking adhesive layer.
2. The method of claim 1, wherein in the step of forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area on one side of the first encapsulation layer, a gap is provided between the first light-transmitting adhesive film and the water-blocking adhesive layer;
in the step of laminating the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer, the first light-transmitting adhesive film and/or the second light-transmitting adhesive film fills the gap;
preferably, the width dimension of the gap is 2 mm-8 mm;
preferably, the thickness of the water blocking adhesive layer is 0.2 mm-0.5 mm greater than the distance from the surface of one side of the second transparent adhesive film, which is away from the first packaging layer, to the first packaging layer.
3. The method of manufacturing a solar module according to claim 1, wherein the viscosity of the first transparent adhesive film in a liquid or semi-liquid semi-solid state is 40000mpa.s to 60000mpa.s; the viscosity of the second transparent adhesive film in liquid or semi-liquid semi-solid state is 40000 mpa.s-60000 mpa.s.
4. The method of claim 1, wherein the process for forming the first transparent adhesive film in a liquid or semi-liquid semi-solid state comprises a spray coating process or a screen printing process; the process adopted for forming the liquid or semi-liquid semi-solid second transparent adhesive film comprises a spraying process or a screen printing process.
5. The method of claim 4, wherein the process for forming the first transparent adhesive film in a liquid or semi-liquid semi-solid state comprises a spraying process; in the step of forming the liquid or semi-liquid semi-solid first transparent adhesive film: spraying along the first direction and the second direction in a staggered manner; the first direction is perpendicular to the second direction;
the process adopted for forming the second transparent adhesive film in the liquid state or semi-liquid semi-solid state comprises a spraying process; in the step of forming the second transparent adhesive film in a liquid state or semi-liquid semi-solid state: spraying along the first direction and the second direction in a staggered manner; the first direction is perpendicular to the second direction.
6. The method of claim 1, wherein the parameters for laminating the first encapsulant layer, the first transparent adhesive film, the solar cell stack, the second transparent adhesive film, and the second encapsulant layer comprise: the lamination temperature was: 70-120 ℃; the laminating time is as follows: 660 s-700 s, and the laminating pressure is 35 kPa-75 kPa;
preferably, the laminating the first encapsulation layer, the first transparent adhesive film, the solar battery pack, the second transparent adhesive film and the second encapsulation layer includes: sequentially performing first lamination, second lamination and third lamination, wherein the pressure intensity of the first lamination, the second lamination and the third lamination is decreased;
Preferably, the pressure of the first lamination is 65kPa to 75kPa; the pressure of the second lamination is 45kPa to 55kPa; the pressure of the third lamination is 35kPa to 45kPa;
preferably, the time for the first lamination is 15s to 25s; the time of the second lamination is 15 s-25 s; the third lamination time is 630 s-650 s.
7. The method according to any one of claims 1 to 6, wherein in the step of forming a liquid or semi-liquid semi-solid first light-transmitting adhesive film in a battery pack placement area on one side of the first encapsulation layer, the thickness of the first light-transmitting adhesive film is 0.3mm to 0.8mm;
in the step of forming a second transparent adhesive film in a liquid state or semi-liquid semi-solid state on the surface of one side of the solar battery pack, which is far away from the first transparent adhesive film, the thickness of the second transparent adhesive film is 0.3-0.8 mm.
8. The method of manufacturing a solar cell module according to any one of claims 1 to 6, wherein the material of the first light-transmitting adhesive film comprises at least one of liquid silica gel, liquid silicone rubber, liquid glue, gel, organic silicone gel, silicone rubber, liquid raw material, silicone rubber compound, and silicone rubber raw material;
The material of the second light-transmitting adhesive film comprises at least one of liquid silica gel, liquid silicone rubber, liquid rubber, gel, organic silicone gel, silicone body rubber, silicone rubber, liquid raw material, silicone rubber sizing material and silicone rubber raw material.
9. The method for producing a solar cell module according to any one of claim 1 to 6, wherein,
before the first packaging layer, the first light-transmitting adhesive film, the solar battery pack, the second light-transmitting adhesive film and the second packaging layer are laminated, the width of the water-blocking adhesive layer is 2-15 mm, and the thickness of the water-blocking adhesive layer is 0.5-3.5 mm.
10. The method according to any one of claims 1 to 6, wherein the material of the water blocking adhesive layer includes any one of an isobutylene polymer and an isoprene polymer.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854225A (en) * | 2018-07-25 | 2020-02-28 | 比亚迪股份有限公司 | Double-glass photovoltaic assembly |
| CN114068742A (en) * | 2021-11-01 | 2022-02-18 | 浙江爱旭太阳能科技有限公司 | Preparation method of solar cell module, solar cell module and photovoltaic system |
| CN114335220A (en) * | 2021-12-31 | 2022-04-12 | 江苏润达光伏无锡有限公司 | Silica gel-based photovoltaic module packaging method |
| CN114843371A (en) * | 2022-04-28 | 2022-08-02 | 安徽华晟新能源科技有限公司 | Preparation method of solar cell module |
| CN114843370A (en) * | 2022-04-28 | 2022-08-02 | 安徽华晟新能源科技有限公司 | Packaging method of solar cell module |
-
2023
- 2023-08-31 CN CN202311124825.XA patent/CN117080307B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854225A (en) * | 2018-07-25 | 2020-02-28 | 比亚迪股份有限公司 | Double-glass photovoltaic assembly |
| CN114068742A (en) * | 2021-11-01 | 2022-02-18 | 浙江爱旭太阳能科技有限公司 | Preparation method of solar cell module, solar cell module and photovoltaic system |
| CN114335220A (en) * | 2021-12-31 | 2022-04-12 | 江苏润达光伏无锡有限公司 | Silica gel-based photovoltaic module packaging method |
| CN114843371A (en) * | 2022-04-28 | 2022-08-02 | 安徽华晟新能源科技有限公司 | Preparation method of solar cell module |
| CN114843370A (en) * | 2022-04-28 | 2022-08-02 | 安徽华晟新能源科技有限公司 | Packaging method of solar cell module |
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