CN117174773A - Flexible CIGS solar cell packaging structure and preparation method thereof - Google Patents
Flexible CIGS solar cell packaging structure and preparation method thereof Download PDFInfo
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- CN117174773A CN117174773A CN202311237431.5A CN202311237431A CN117174773A CN 117174773 A CN117174773 A CN 117174773A CN 202311237431 A CN202311237431 A CN 202311237431A CN 117174773 A CN117174773 A CN 117174773A
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Abstract
The invention relates to a flexible CIGS solar cell packaging structure and a preparation method thereof, and the flexible CIGS solar cell packaging structure comprises the following components: the flexible substrate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are sequentially arranged from bottom to top; the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell slice, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are processed into a whole in a lamination mode; the lower surface of the camouflage layer is provided with an adhesion material; the camouflage layer is a fabric with holes. The beneficial effects of the invention are as follows: the arrangement of the camouflage layer enables the hollowed-out part to completely transmit sunlight to generate power for the solar cell, and the non-hollowed-out part can absorb or reflect visible light, so that the problem of color and temperature difference between the solar cell and the external environment caused by the light is effectively reduced, and the visible light camouflage performance of the solar cell is improved. And under the condition of considering the power generation performance of the solar cell, the visible light camouflage is realized.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a flexible CIGS solar cell packaging structure and a preparation method thereof.
Background
With the development of world industry, the exhaustion of petroleum, natural gas, coal and other energy sources on a daily basis, and the continuous exploration of new energy sources by human beings ensures that the utilization technology of the solar photovoltaic module is greatly developed. And after the correlation between energy efficiency and improvement of army efficiency is realized, the improvement of energy efficiency and the reduction of traditional fuel application, the shift to renewable energy sources to get rid of the dependence on traditional energy sources and non-renewable energy sources, especially fossil fuels, gradually becomes an important problem for army consideration in various countries. However, the conventional solar power generation system mainly has the following problems: the solar cell panels are all made of rigid materials, and are extremely easy to crack when impacted by external force, so that the functions of the power generation system are damaged, and safety accidents can occur due to destructive hot spots formed by operation at high temperature; secondly, rigid solar panels, due to their fixed laminate structure, are single in color and are prone to strongly reflecting visible, near infrared and radar waves, making the target very exposed, thus limiting its use in military applications. In previous studies, attempts have also been made to laminate rigid solar modules using colored packaging films, but since the color of the film is produced by light absorption of the added material, solar light is wasted; meanwhile, attempts are made to plate a colored film formed by multiple layers of dielectric materials on glass to meet the requirements, but the method needs to plate films layer by layer through a magnetron sputtering process, is complex in production process, high in cost and difficult to form rich patterns, and can only form a single color.
Disclosure of Invention
The invention aims to overcome the defects of the existing solar cell and provides a flexible CIGS solar cell packaging structure and a preparation method thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a flexible CIGS solar cell package structure comprising: the flexible substrate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are sequentially arranged from bottom to top;
the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell slice, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are processed into a whole in a lamination mode; the lower surface of the camouflage layer is provided with an adhesion material; the camouflage layer is a fabric with holes.
As a further scheme of the invention: the aperture of the hole is 2-10 mm; the hole spacing of the holes is 2-5 mm; the thickness of the camouflage layer is 100-400 nm.
As a further scheme of the invention: the camouflage layer covers the cell main grid line of the flexible CIGS cell.
As a further scheme of the invention: the camouflage layer is made of terylene or oxford cloth.
As a further scheme of the invention: the water-blocking packaging layer adopts PET material or PEN material as a substrate, and a single layer or multiple layers of inorganic film materials are plated on the surface to form a water-blocking film, and the surface of the water-blocking film is compounded with fluoride polymer materials.
As a further scheme of the invention: the first adhesive film layer and the second adhesive film layer are made of thermoplastic adhesive films; the thermoplastic adhesive film is selected from any one of polyvinyl butyral adhesive film, polyamide adhesive film and polyurethane adhesive film.
As a further scheme of the invention: the first adhesive film layer and the second adhesive film layer are made of thermosetting adhesive films; the thermosetting adhesive film is an ethylene-vinyl acetate copolymer adhesive film.
As a further scheme of the invention: the camouflage layer has a periphery that extends beyond the flexible CIGS cell by a dimension of 15 to 20mm.
The preparation method of the flexible CIGS solar cell packaging structure comprises the following steps:
in the laminating machine, a first adhesive film layer is arranged on a flexible substrate layer, a flexible CIGS cell piece is placed on the first adhesive film layer, a second adhesive film layer is arranged on the flexible CIGS cell piece, a water blocking packaging layer is placed on the second adhesive film layer, a camouflage layer is placed on the water blocking packaging layer, and the flexible substrate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water blocking packaging layer and the camouflage layer are prepared into a whole through the laminating machine to obtain the flexible CIGS solar cell packaging structure.
As a further scheme of the invention: the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell sheet, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are vacuumized in a laminating machine at the pressure of minus 100 to minus 10kPa, and hot-pressed for 30 to 120 minutes at the temperature of 60 to 180 ℃ so as to obtain the flexible CIGS solar cell packaging structure.
As a further scheme of the invention: the holes on the camouflage layer are processed in advance through a laser cutting machine; the process parameters of the laser cutting machine are that the laser power is 10-100W, and the laser processing speed is 0-10000 mm/s; the flatness of the laser processing platform is no more than 3mm.
As a further scheme of the invention: the material of the flexible CIGS cell is copper indium gallium selenide grown on a stainless steel substrate.
As a further scheme of the invention: the flexible bottom plate layer is made of flexible film back plate or cloth with high water-blocking coating.
Compared with the prior art, the invention has the beneficial effects that: the arrangement of the camouflage layer enables the hollowed-out part to completely transmit sunlight to generate power for the solar cell, and the non-hollowed-out part can reflect or absorb visible light, so that the problem of color and temperature difference between the solar cell and the external environment caused by the light is effectively reduced, and the visible light camouflage performance of the solar cell is improved. And under the condition of considering the power generation performance of the solar cell, the visible light camouflage is realized.
Other features and advantages of the present invention will be disclosed in the following detailed description of the invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a flexible CIGS solar cell package structure without a camouflage layer as a comparative example;
fig. 2 is a schematic structural view of a flexible CIGS solar cell package structure of the present invention.
List of reference numerals: the flexible CIGS cell comprises a flexible bottom plate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water-blocking encapsulation layer 5 and a camouflage layer 6.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
As shown in fig. 2, a flexible CIGS solar cell package structure includes: the flexible substrate layer 1, the first adhesive film layer 2, the flexible CIGS cell 3, the second adhesive film layer 4, the water-blocking packaging layer 5 and the camouflage layer 6 are sequentially arranged from bottom to top.
The flexible bottom plate layer 1, the first adhesive film layer 2, the flexible CIGS cell sheet 3, the second adhesive film layer 4, the water-blocking encapsulation layer 5 and the camouflage layer 6 are processed into a whole in a laminating mode. The camouflage layer 6 is a fabric with holes. Specifically, the camouflage layer 6 is made of terylene or oxford fabric. The thickness of the camouflage layer 6 is 100-400 nm. The lower surface of the camouflage layer 6 is provided with an adhesive material. The adhesive material can be polyester or polyurethane adhesive material. I.e. the side of the camouflage layer 6 facing the water-blocking packaging layer 5 is provided with an adhesive material. The aperture of the hole is 2-10 mm. The hole spacing of the holes is 2-5 mm. The difference of the aperture and the hole spacing of the camouflage layer 6 can directly influence the photovoltaic conversion efficiency and the visible light camouflage performance of the flexible CIGS solar cell packaging structure. By adopting the aperture and the round hole, better photovoltaic conversion efficiency and visible light camouflage performance can be realized. As a specific embodiment, camouflage may be provided in a uniform regular shape. May be provided as round holes, squares, diamonds, etc. or other irregular shapes.
The visible light color of the camouflage layer 6 is green (dark green DG0730, medium green MG1151, yellow green 1560) or earth (brown BE1732, loess 2344, sand 2635, sand 3948) which accords with the GJB.
The camouflage layer 6 covers the cell main grid line of the flexible CIGS cell 3. Because the main grid lines of the battery piece have serious light reflection, the camouflage layer is designed to cover the main grid lines of the battery piece and have a structure with uniform round holes between the two main grid lines so as to improve the camouflage performance of the flexible CIGS solar cell packaging structure. The part of the main grid line of the battery piece, which is close to the edge and is not formed with complete regular shapes such as round holes, squares, diamonds and the like, is combined with the grid line to form new irregular shapes.
The water-blocking packaging layer 5 adopts PET material or PEN material as a substrate, and a single layer or multiple layers of inorganic film materials such as SiO are plated on the surface x 、SiN x And forming a water-blocking film, wherein fluoride polymer materials such as ETFE, PVDF and the like are compounded on the surface of the water-blocking film.
As a specific embodiment, the first adhesive film layer 2 and the second adhesive film layer 4 are made of thermosetting adhesive films. The thermosetting adhesive film is an ethylene-vinyl acetate copolymer adhesive film. As an alternative embodiment, the first adhesive film layer 2 and the second adhesive film layer 4 are made of thermoplastic adhesive films. The thermoplastic adhesive film is selected from any one of polyvinyl butyral adhesive film, polyamide adhesive film and polyurethane adhesive film.
The flexible CIGS cell 3 is made of copper indium gallium selenide grown on a stainless steel substrate. The flexible CIGS solar cell package structure can be rolled 360 degrees. The flexible bottom plate layer is made of flexible film back plate or cloth with high water-blocking coating.
As a preferred embodiment, the outer circumference of the camouflage layer 6 extends beyond the dimension of the flexible CIGS cell 3 by 15-20 mm. The periphery of the camouflage layer 6 is adhered with an adhesive film. The material of the adhesive film may be the same as the material of the first adhesive film layer 2 and the second adhesive film layer 4. The overall size of the camouflage layer 6 is slightly larger than the size of the flexible CIGS cell 3, so that the problem of color distortion caused by glue overflow of the camouflage layer 6 is solved.
As a preferred embodiment, a method for manufacturing a flexible CIGS solar cell package structure includes the steps of:
and 1, cutting and processing round holes on the cloth by adopting a laser cutting machine to obtain the camouflage layer 6.
Step 2, in the laminating machine, a first adhesive film layer 2 is arranged on the flexible substrate layer 1, a flexible CIGS cell piece 3 is placed on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell piece 3, a water blocking packaging layer 5 is placed on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, and the flexible substrate layer 1, the first adhesive film layer 2, the flexible CIGS cell piece 3, the second adhesive film layer 4, the water blocking packaging layer 5 and the camouflage layer 6 are prepared into a whole through the laminating machine to obtain the flexible CIGS solar cell packaging structure.
As a specific embodiment, the flexible bottom plate layer 1, the first adhesive film layer 2, the flexible CIGS cell sheet 3, the second adhesive film layer 4, the water-blocking encapsulation layer 5 and the camouflage layer 6 are vacuumized in a laminating machine at the pressure of-100 to-10 kPa, and hot-pressed for 30 to 120 minutes at the temperature of 60 to 180 ℃ so as to obtain the flexible CIGS solar cell encapsulation structure.
In order to solve the problems of hole opening precision and edge coking, the process parameters of the laser cutting machine are 10-100W of laser power and 0-10000 mm/s of laser processing speed; in order to solve the problem of deformation of the camouflage layer fabric, the flatness of the laser processing platform is no more than 3mm; and removing redundant parts on the surface of the fabric subjected to laser treatment for standby.
Cutting a small amount of cloth with different materials before preparation, laminating two pieces of cloth (middle adhesive film) with the same material at low temperature by using a laminating machine to prepare a sample, and observing whether the sample overflows adhesive or not; and the tensile force of the sample is tested by using a tensile force tester, so that layering is prevented in the later use process, namely, the sample to be tested is prepared according to the requirement, the sample is clamped by using a clamp, a testing method is set, the stretching speed is 50mm/min, the change of the sample in the testing process is observed, and the tensile force at the moment is recorded when the samples are separated from each other.
Comparative example 1: referring to fig. 1, the flexible CIGS solar cell package structure is not provided with a camouflage layer. Namely, a flexible bottom plate layer, a first adhesive film layer, a flexible CIGS cell piece, a second adhesive film layer and a water-blocking packaging layer which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer.
The preparation process of comparative example 1 is: in the laminating machine, a first adhesive film layer 2 is arranged on a flexible substrate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 1: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation process of example 1 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 2mm, and the color of the cloth is dark green (DG 0730); in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 2: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation process of example 2 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 2mm, and the color of the cloth is yellow-green (YG 1560); in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 3: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation process of example 3 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 2mm, and the color of the cloth is loess (YE 2344); in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 4: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation procedure of example 4 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 2mm, and the color of the cloth is sandy soil (SE 3948); in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 5: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation process of example 5 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 2mm, the color of the cloth is trichromatic camouflage (dark green, yellow green and sandy soil), and the camouflage spots are large spots; in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
Example 6: referring to fig. 2, the flexible CIGS solar cell packaging structure comprises a flexible substrate layer 1, a first adhesive film layer 2, a flexible CIGS cell sheet 3, a second adhesive film layer 4, a water blocking packaging layer 5 and a camouflage layer 6 which are sequentially arranged from bottom to top. The first adhesive film layer and the second adhesive film layer are made of ethylene-vinyl acetate copolymer. The preparation procedure of example 6 is: cutting the cloth by a laser cutting machine, wherein the aperture of the cloth is 8mm, the hole spacing is 4mm, the color of the cloth is trichromatic camouflage (dark green, yellow green and sandy soil), and the camouflage spots are large spots; in the laminating machine, a first adhesive film layer 2 is arranged on a flexible bottom plate layer 1, a flexible CIGS cell sheet 3 is arranged on the first adhesive film layer 2, a second adhesive film layer 4 is arranged on the flexible CIGS cell sheet 3, a water blocking packaging layer 5 is arranged on the second adhesive film layer 4, a camouflage layer 6 is arranged on the water blocking packaging layer 5, vacuumizing is carried out until the pressure is minus 30kPa, and hot pressing is carried out for 1h under the condition of 140 ℃, so that the flexible CIGS solar cell packaging structure is obtained.
The structures of examples 1 to 6 are the same. Examples 1 to 5 differ in the colour of the camouflage layer. Whereas example 6 differs from example 5 in the hole spacing.
Table 1 is a cell performance table for a flexible CIGS solar cell package structure.
The flexible CIGS solar cell package structures of examples 1 through 6 of the present invention were tested for chromaticity, gloss, and visible light contrast meeting military requirements and for solar cell photoelectric conversion efficiency falling within allowable ranges.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A flexible CIGS solar cell package structure, comprising: the flexible substrate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are sequentially arranged from bottom to top;
the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are processed into a whole in a lamination mode; the lower surface of the camouflage layer is provided with an adhesion material; the camouflage layer is a fabric with holes.
2. The flexible CIGS solar cell package structure of claim 1, wherein,
the aperture of the hole is 2-10 mm; the hole spacing of the holes is 2-5 mm; the thickness of the camouflage layer is 100-400 nm.
3. The flexible CIGS solar cell package structure of claim 1, wherein,
the camouflage layer is made of terylene or oxford cloth.
4. The flexible CIGS solar cell package structure of claim 1, wherein,
the water-blocking packaging layer adopts PET material or PEN material as a substrate, a single-layer or multi-layer inorganic film material is plated on the surface to form a water-blocking film, and a fluoride polymer material is compounded on the surface of the water-blocking film.
5. The flexible CIGS solar cell package structure of claim 1, wherein,
the first adhesive film layer and the second adhesive film layer are made of thermoplastic adhesive films; the thermoplastic adhesive film is selected from any one of polyvinyl butyral adhesive film, polyamide adhesive film and polyurethane adhesive film.
6. The flexible CIGS solar cell package structure of claim 1, wherein,
the first adhesive film layer and the second adhesive film layer are made of thermosetting adhesive films; the thermosetting adhesive film is an ethylene-vinyl acetate copolymer adhesive film.
7. The flexible CIGS solar cell package structure of claim 1, wherein,
the periphery of the camouflage layer extends beyond the flexible CIGS cell sheet by 15-20 mm.
8. A method of manufacturing a flexible CIGS solar cell package structure as claimed in any one of claims 1 to 7, comprising the steps of:
in the laminating machine, a first adhesive film layer is arranged on the flexible bottom plate layer, a flexible CIGS cell piece is placed on the first adhesive film layer, a second adhesive film layer is arranged on the flexible CIGS cell piece, a water blocking packaging layer is placed on the second adhesive film layer, a camouflage layer is placed on the water blocking packaging layer, and the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell piece, the second adhesive film layer, the water blocking packaging layer and the camouflage layer are prepared into a whole through the laminating machine to obtain the flexible CIGS solar cell packaging structure.
9. The method of claim 8, wherein the flexible CIGS solar cell package structure is formed by a process comprising,
the flexible bottom plate layer, the first adhesive film layer, the flexible CIGS cell sheet, the second adhesive film layer, the water-blocking packaging layer and the camouflage layer are vacuumized in a laminating machine under the pressure of-100 to-10 kPa, and are hot-pressed for 30 minutes to 120 minutes at the temperature of 60 to 180 ℃ so as to obtain the flexible CIGS solar cell packaging structure.
10. The method of claim 8, wherein the flexible CIGS solar cell package structure is formed by a process comprising,
the holes on the camouflage layer are processed in advance through a laser cutting machine; the technological parameters of the laser cutting machine are that the laser power is 10-100W, and the laser processing speed is 0-10000 mm/s; the flatness of the laser processing platform is no more than 3mm.
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