CN111370513A - Packaging structure and packaging method of solar cell - Google Patents
Packaging structure and packaging method of solar cell Download PDFInfo
- Publication number
- CN111370513A CN111370513A CN201811592667.XA CN201811592667A CN111370513A CN 111370513 A CN111370513 A CN 111370513A CN 201811592667 A CN201811592667 A CN 201811592667A CN 111370513 A CN111370513 A CN 111370513A
- Authority
- CN
- China
- Prior art keywords
- film
- solar cell
- water
- pressurizing
- stage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000010030 laminating Methods 0.000 claims abstract description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 15
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 12
- -1 polyoxyethylene Polymers 0.000 claims description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims description 6
- 229920006267 polyester film Polymers 0.000 claims description 5
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 103
- 239000002313 adhesive film Substances 0.000 description 50
- 230000000903 blocking effect Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a packaging structure and a packaging method of a solar cell, wherein the packaging structure comprises a back plate, a solar cell chip, a first water absorption film, a water resistance film and a front plate; the back plate, the solar cell chip, the water-blocking film and the front plate are sequentially stacked from bottom to top; the first water absorption film is arranged between the solar cell chip and the water resistance film. The packaging method comprises the following steps: and stacking according to the packaging structures to form the solar component to be laminated, entering a laminating machine, and forming a whole through a temperature rising stage, a vacuum pumping stage, a first pressurizing stage, a second pressurizing stage, a third pressurizing stage and a cooling stage. The packaging structure and the packaging method can reduce the influence of water vapor erosion on the solar cell chip and prolong the service life of the solar cell.
Description
Technical Field
The present invention relates to the field of solar cell technology, and more particularly, to a solar cell package structure and a solar cell package method.
Background
Because the solar cell chip is easily influenced by external temperature, humidity and oxygen after being prepared, if the solar cell chip is not packaged, the solar cell chip is easily corroded by water vapor and oxygen to be insulated and corroded and perforated particularly after being used in air for a long time, so that the cell efficiency is reduced due to short circuit or increased internal resistance of the cell, and the service life of the cell is shortened.
Therefore, the package is a main factor determining the life of the battery, and the conventional solar cell package structure, as shown in fig. 1, includes 100-frosted protection film, 200-adhesive layer, 300-water-resistant film, 400-front encapsulant film, 500-thin film battery chip, 600-rear encapsulant film, and 700-back sheet. However, the existing packaging structure of the solar cell only considers blocking water vapor from permeating into the cell, but the conventional packaging structure is not decisive in general, and the problem that the cell chip is corroded by the water vapor and is difficult to guarantee the ultra-long service life of the cell and the power attenuation in the long-term use process cannot be completely avoided after long-term use.
Disclosure of Invention
In view of the above, the present invention provides a solar cell package structure and a solar cell package method, which can reduce the influence of water vapor erosion on a solar cell chip and prolong the service life of the solar cell.
Based on the above purpose, the invention provides a solar cell packaging structure, which comprises a back plate, a solar cell chip, a first water absorption film, a water resistance film and a front plate; the back plate, the solar cell chip, the water-blocking film and the front plate are sequentially stacked from bottom to top; the first water absorption film is arranged between the solar cell chip and the water resistance film.
In some embodiments of the present invention, the package structure further comprises a second water-absorbing film disposed between the solar cell chip and the back sheet.
In some embodiments of the present invention, the first water absorbing film is selected from one of a polyacrylic acid film, a polyvinyl alcohol film, or a polyoxyethylene film.
In some embodiments of the present invention, the second water-absorbent film is selected from one of a polyacrylic acid film, a polyvinyl alcohol film, or a polyoxyethylene film.
In some embodiments of the present invention, the package structure further includes a sealing rubber strip, an upper end surface of the sealing rubber strip is disposed around the edge of the front board, and a lower end surface of the sealing rubber strip is disposed around the edge of the back board.
In some embodiments of the present invention, the front sheet is selected from one of an ethylene-tetrafluoroethylene copolymer film, a tempered film, a polytetrafluoroethylene film or a polyester film;
and/or the backsheet is an aluminum-containing photovoltaic backsheet.
In some embodiments of the invention, the front plate has a thickness of 50-300 μm;
and/or the thickness of the water resistance film is 25-200 μm;
and/or the thickness of the first water absorption film is 30-100 μm;
and/or the thickness of the back plate is 200-350 μm.
In some embodiments of the present invention, the second water-absorbent film has a thickness of 30 to 100 μm.
The invention also provides a packaging method of the solar cell, which is characterized in that the solar cell is stacked according to the packaging structure to form a solar component to be laminated and enters a laminating machine, and the packaging method comprises the following steps:
in the temperature rise stage, heating the part of the laminating machine is started, and the temperature rise range is controlled to be 120-160 ℃;
in the vacuumizing stage, after the solar module to be laminated after the lamination and lamination are finished enters an inner cavity of a laminating machine, vacuumizing is carried out for 350-700S, and the vacuum degree is 10-35 Pa;
a first pressurizing stage, pressurizing the solar module, wherein the pressure is-80 to-70 kPa, and the pressurizing time is 100 to 200S;
the second pressurizing stage, continuously pressurizing the solar module, wherein the pressure is-70 to-60 kPa, and the pressurizing time is 140 to 200S;
in the third pressurizing stage, the solar module is continuously pressurized, the pressure is-60 to-50 kPa, and the pressurizing time is 500 to 700S;
and in the cooling stage, the laminated solar module is conveyed to a cooling area through a conveyor belt, the cooling time is 180-300S, and the solar module is cooled to room temperature.
From the above, it can be seen that the present invention has the following advantages compared with the prior art:
the packaging structure and the packaging method of the solar cell provided by the invention can reduce the influence of water vapor erosion on the solar cell chip, prolong the service life of the solar cell, correspondingly reduce the water resistance effect of the water resistance film within the power loss bearing range of the component during the service life of the solar cell, and reduce the production cost.
Drawings
Fig. 1 is a schematic view of a conventional solar cell package structure;
fig. 2 is a schematic view of a solar cell package structure according to an embodiment of the invention;
fig. 3 is a schematic view of another solar cell package structure according to an embodiment of the invention;
fig. 4 is a schematic flow chart illustrating a method for packaging a solar cell according to an embodiment of the present invention;
wherein, 1-front panel; 2-a third adhesive film; 3-water resistance film; 4-a first adhesive film; 5-a first water absorption film; 6-sealing adhesive tape; 7-a solar cell chip; 8-a second adhesive film; 9-a back plate; 10-a second water-absorbing film; 11-fourth adhesive film, 12-fifth adhesive film.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
The solar cell packaging structure provided by the embodiment comprises a back plate 9, a solar cell chip 7, a first water absorbing film 5, a water blocking film 3 and a front plate 1, wherein the back plate 9, the solar cell chip 7, the water blocking film 3 and the front plate 1 are arranged in a stacked mode from bottom to top, and the first water absorbing film 5 is arranged between the solar cell chip 7 and the water blocking film 3.
As shown in fig. 2, in this embodiment, optionally, when the first water absorbing film 5 is disposed between the solar cell chip 7 and the water blocking film 3, the first water absorbing film 5 can effectively absorb water vapor permeating from one side of the water blocking film 3 into the solar cell, so as to effectively solve the problem of performance attenuation of the solar cell module caused by water vapor permeating into the solar cell module to erode the solar cell chip 7, and prolong the service life of the solar cell chip 7.
As shown in fig. 3, in this embodiment, preferably, the package structure further includes a second water-absorbing film 10, where the second water-absorbing film 10 is disposed between the solar cell chip 7 and the back sheet 9, that is, the first water-absorbing film 5 is disposed between the solar cell chip 7 and the water-blocking film 3, and the second water-absorbing film 10 is disposed between the solar cell chip 7 and the back sheet 9, where the first water-absorbing film 5 disposed between the solar cell chip 7 and the water-blocking film 3 can effectively absorb water vapor permeating from the water-blocking film 3 into the solar cell, and the second water-absorbing film 10 disposed between the solar cell chip 7 and the back sheet 9 can effectively absorb water vapor permeating from the back sheet 9 into the solar cell. The first water absorption film 5 and the second water absorption film 10 are both high water absorption resin films, the upper and lower layers of high water absorption resin films can effectively absorb water vapor permeating into the solar cell module from one side of the water blocking film 3 and one side of the back plate 9, the water vapor and moisture are prevented from entering the solar cell chip 7, and the service life of the solar cell chip 7 is prolonged.
In the embodiment, due to the arrangement of the first water absorption film 5, the water blocking effect of the water resistance film 3 can be correspondingly reduced within the power loss bearing range of the solar cell module during the service life, so that the production cost is reduced, for example, the water blocking rate is required to be 10 in the prior art-4g/m2The first water absorption film 5 is used in the packaging structure, and the water resistance rate is 10- 3g/m2Or 10-2g/m2The water-blocking film is only needed, and the production cost is reduced.
In this embodiment, preferably, the lengths of the first water absorbing film 5 and the second water absorbing film 10 are longer than the length of the solar cell chip 7, and when the sealing strip 6 is used to encapsulate the two sides of the solar cell chip 7, the overflowing first water absorbing film 5 and the overflowing second water absorbing film 10 can absorb water vapor entering from the two sides, so that the water vapor does not corrode the solar cell chip 7.
In this embodiment, the synthetic resin having hydrophilic groups, which can absorb a large amount of water and keep the water from flowing out, can absorb water corresponding to 100 times or more of the volume of the resin, and the highest water absorption rate can be 1000 times or more. All are selected from one of polyacrylic acid film, polyvinyl alcohol film or polyoxyethylene film; preferably, the water absorbing film is a PVA (polyvinyl alcohol) film.
The PVA film has the following advantages:
the PVA film is a functional polymer material with high water absorption capacity and high water retention capacity, can absorb water which is dozens of times or thousands of times of the self weight, can not separate the water even under external pressure, and can be applied to the packaging of the solar cell to effectively prevent water vapor from corroding the solar cell chip 7.
The PVA film has no heat absorption and heat release phenomena in the water absorption process, so that the PVA film is applied to battery packaging without considering the influence on the battery in the working process.
The PVA film has good light transmission and extremely low fogging degree, and is used on a packaging structure without worrying about the influence on light absorption of a battery.
The PVA film has good heat sealability, compactness and strong bonding force, has good flexibility, high compressive strength, high tearing strength and long service life, and can be applied to solar cell packaging in a hot pressing mode.
Therefore, the PVA film is selected as the packaging adhesive film, the packaging adhesive film not only has the characteristics of high heat sealability and strong adhesive force, but also has high light transmittance, and the low atomization degree can effectively reduce the influence on the solar cell chip 7 to absorb sunlight and effectively increase the photoelectric conversion efficiency; meanwhile, the PVA film also has super-strong water absorption and retention capacity, effectively absorbs water entering the interior of the solar cell module, protects the solar cell chip 7 from water vapor erosion and oxidation, prolongs the service life of the solar cell and reduces the power attenuation of the solar cell in the using process.
As shown in fig. 2, in the present embodiment, the package structure further includes a first adhesive film 4, a second adhesive film 8, a third adhesive film 2, and a fourth adhesive film 11, wherein the first adhesive film 4 is disposed between the water-resistant film 3 and the first water-absorbent film 5, the second adhesive film 8 is disposed between the solar cell chip 7 and the back sheet 9, the third adhesive film 2 is disposed between the front sheet 1 and the water-resistant film 3, and the fourth adhesive film 11 is disposed between the first water-absorbent film 5 and the solar cell chip 7.
As shown in fig. 3, in the present embodiment, the package structure further includes a first adhesive film 4, a second adhesive film 8, a third adhesive film 2, a fourth adhesive film 11, and a fifth adhesive film 12, the first adhesive film 4 is disposed between the water blocking film 3 and the first water absorbing film 5, the second adhesive film 8 is disposed between the second water absorbing film 10 and the back sheet 9, the third adhesive film 2 is disposed between the front sheet 1 and the water blocking film 3, the fourth adhesive film 11 is disposed between the first water absorbing film 5 and the solar cell chip 7, and the fifth adhesive film 12 is disposed between the solar cell chip 7 and the second water absorbing film 10.
In the present embodiment, the first adhesive film 4, the second adhesive film 8, the third adhesive film 2, the fourth adhesive film 11, and the fifth adhesive film 12 have a certain adhesive strength, specifically, each of the first adhesive film 4, the second adhesive film 8, the third adhesive film 2, the fourth adhesive film 11, and the fifth adhesive film 12 may be one of an EVA adhesive film, a POE (ethylene- α -olefin copolymer) adhesive film, or a PVB (polyvinyl butyral) adhesive film, and in the present embodiment, the first adhesive film 4, the second adhesive film 8, the third adhesive film 2, the fourth adhesive film 11, and the fifth adhesive film 12 are preferably an EVA adhesive film, which is a polyethylene-polyvinyl acetate copolymer, and has superiority in adhesion, durability, optical characteristics, and the like, so that it is increasingly widely applied to solar modules and various optical products.
In the present embodiment, the front plate 1 may be made of a material having a certain light transmittance, weather resistance, insulation, and water resistance, specifically, an ethylene-tetrafluoroethylene copolymer film (ETFE), a toughened film (GLASS), a polytetrafluoroethylene film (PTFE), or a polyester film (PET), and preferably, the front plate 1 is a PET frosted film.
In this embodiment, the package structure further includes a sealing rubber strip 6, an upper end surface of the sealing rubber strip 6 is disposed around the edge of the front board 1, and a lower end surface of the sealing rubber strip 6 is disposed around the edge of the back board 9. Therefore, a sealed space is formed among the front plate 1, the back plate 9 and the sealing rubber strip 6, the third bonding film 2, the water blocking film 3, the first bonding film 4, the first water absorbing film 5, the fourth bonding film 11, the solar cell chip 7 and the second bonding film 8 are all packaged in the space, and therefore protection of the solar cell chip 7 is improved, the sealing rubber strip 6 can be fixedly adhered to the edges of the front plate 1 and the back plate 9, and therefore the packaging reliability of the solar cell chip 7 is also enhanced.
In order to enhance the waterproof performance of the solar cell module, the sealing rubber strip 6 can be butyl rubber, which has good chemical stability and thermal stability, most prominently air tightness and water tightness, and also has good heat resistance, ozone resistance, aging resistance, chemical resistance, shock absorption, electrical insulation performance, good resistance to sunlight and ozone, and can effectively increase the stability of the whole structure of the cell.
In this embodiment, the water blocking film 3 may be made of a material having certain light transmittance, weather resistance, insulation property, and high water resistance, and optionally, the water blocking film 3 is a 3M water blocking film, and the combination of the water blocking film 3 and the front plate 1 can resist high temperature, moisture, and ultraviolet rays.
In order to prolong the service life of the solar cell module and reduce the problem of power attenuation in the long-term use process, the back plate 9 is required to play a role in protecting and supporting the cell piece and has reliable insulation, water resistance and aging resistance, and optionally, the back plate 9 is an aluminum-containing photovoltaic back plate.
In this embodiment, the thickness of the front plate 1 is 50-300 μm, the thickness of the third adhesive film 2 is 300-. If the thickness of the first water absorbing film 5 is too large, the permeability of the solar cell module may be affected, and if the thickness of the first water absorbing film 5 is too small, the waterproof performance is reduced; if the thickness of the front plate 1 is too large, the light transmittance of the solar cell module is affected, and if the thickness of the front plate 1 is too small, the water blocking performance is reduced; if the thickness of the back plate 9 is too large, the light reflection rate of the solar cell module is affected, and if the thickness of the back plate 9 is too small, the water blocking performance is reduced; if the thickness of the water-blocking film 3 is too large, the light transmittance of the solar cell module is impaired, and if the thickness of the water-blocking film 3 is too small, the water-blocking performance is lowered.
As shown in fig. 4, the embodiment further provides a method for encapsulating a solar cell, which is performed by stacking according to the above-mentioned encapsulation structure, for example, a back sheet 9, a second adhesive film 8, a sealant strip 6, a second water-absorbing film 10, a fifth adhesive film 12, a solar cell chip 7, a fourth adhesive film 11, a first water-absorbing film 5, a first adhesive film 4, a water-blocking film 3, a third adhesive film 2, and a front sheet 1 are sequentially stacked from bottom to top to form a solar module to be laminated, and the solar module is put into a laminator,
in the temperature rise stage, heating the part of the laminating machine is started, and the temperature rise range is controlled to be 120-160 ℃;
in the vacuumizing stage, after the solar module to be laminated after the lamination and lamination are finished enters an inner cavity of a laminating machine, vacuumizing is carried out for 350-700S, and the vacuum degree is 10-35 Pa;
a first pressurizing stage, pressurizing the solar module, wherein the pressure is-80 to-70 kPa, and the pressurizing time is 100 to 200S;
the second pressurizing stage, continuously pressurizing the solar module, wherein the pressure is-70 to-60 kPa, and the pressurizing time is 140 to 200S;
in the third pressurizing stage, the solar module is continuously pressurized, the pressure is-60 to-50 kPa, and the pressurizing time is 500 to 700S;
and in the cooling stage, the laminated solar module is conveyed to a cooling area through a conveyor belt, the cooling time is 180-300S, and the solar module is cooled to room temperature.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A solar cell packaging structure is characterized by comprising a back plate, a solar cell chip, a first water absorption film, a water resistance film and a front plate; the back plate, the solar cell chip, the water-blocking film and the front plate are sequentially stacked from bottom to top; the first water absorption film is arranged between the solar cell chip and the water resistance film.
2. The package structure of claim 1, further comprising a second water-absorbing film disposed between the solar cell chip and the back sheet.
3. The encapsulation structure according to claim 1, wherein the first water-absorbing film is selected from one of a polyacrylic acid film, a polyvinyl alcohol film, or a polyoxyethylene film.
4. The package structure of claim 2, wherein the second water-absorbing film is selected from one of a polyacrylic film, a polyvinyl alcohol film, or a polyoxyethylene film.
5. The package structure according to claim 1, further comprising a sealing rubber strip, wherein an upper end surface of the sealing rubber strip is disposed around an edge of the front board, and a lower end surface of the sealing rubber strip is disposed around an edge of the back board.
6. The encapsulation structure according to claim 1, wherein the front plate is selected from one of an ethylene-tetrafluoroethylene copolymer film, a tempered film, a polytetrafluoroethylene film or a polyester film;
and/or the backsheet is an aluminum-containing photovoltaic backsheet.
7. The package structure of claim 1, wherein the front plate has a thickness of 50-300 μ ι η;
and/or the thickness of the water resistance film is 25-200 μm;
and/or the thickness of the first water absorption film is 30-100 μm;
and/or the thickness of the back plate is 200-350 μm.
8. The package structure of claim 2, wherein the second bibulous membrane has a thickness of 30-100 μm.
9. A method for encapsulating a solar cell, wherein the encapsulation structure according to any one of claims 1 to 8 is stacked to form a solar module to be laminated, and the solar module is fed into a laminating machine, comprising the following steps:
in the temperature rise stage, heating the part of the laminating machine is started, and the temperature rise range is controlled to be 120-160 ℃;
in the vacuumizing stage, after the solar module to be laminated after the lamination and lamination are finished enters an inner cavity of a laminating machine, vacuumizing is carried out for 350-700S, and the vacuum degree is 10-35 Pa;
a first pressurizing stage, pressurizing the solar module, wherein the pressure is-80 to-70 kPa, and the pressurizing time is 100 to 200S;
the second pressurizing stage, continuously pressurizing the solar module, wherein the pressure is-70 to-60 kPa, and the pressurizing time is 140 to 200S;
in the third pressurizing stage, the solar module is continuously pressurized, the pressure is-60 to-50 kPa, and the pressurizing time is 500 to 700S;
and in the cooling stage, the laminated solar module is conveyed to a cooling area through a conveyor belt, the cooling time is 180-300S, and the solar module is cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592667.XA CN111370513A (en) | 2018-12-25 | 2018-12-25 | Packaging structure and packaging method of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592667.XA CN111370513A (en) | 2018-12-25 | 2018-12-25 | Packaging structure and packaging method of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111370513A true CN111370513A (en) | 2020-07-03 |
Family
ID=71206109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592667.XA Pending CN111370513A (en) | 2018-12-25 | 2018-12-25 | Packaging structure and packaging method of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111370513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447130A (en) * | 2022-01-27 | 2022-05-06 | 浙江合特光电有限公司 | High-light-transmission flexible composite front plate and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345267A (en) * | 2008-08-29 | 2009-01-14 | 李毅 | Solar optoelectronic template and its packaging method |
| CN203377236U (en) * | 2013-07-04 | 2014-01-01 | 上海光轩新能源有限公司 | Solar cell module |
| CN106585052A (en) * | 2016-11-30 | 2017-04-26 | 浙江创盛光能源有限公司 | Laminating technology of solar cell module |
| CN206364025U (en) * | 2016-11-10 | 2017-07-28 | 江苏欣战江新能源有限公司 | A kind of CIGS based thin film solar cells |
| CN108878563A (en) * | 2018-06-29 | 2018-11-23 | 汉能移动能源控股集团有限公司 | Solar cell, power generation device and preparation method of solar cell |
-
2018
- 2018-12-25 CN CN201811592667.XA patent/CN111370513A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345267A (en) * | 2008-08-29 | 2009-01-14 | 李毅 | Solar optoelectronic template and its packaging method |
| CN203377236U (en) * | 2013-07-04 | 2014-01-01 | 上海光轩新能源有限公司 | Solar cell module |
| CN206364025U (en) * | 2016-11-10 | 2017-07-28 | 江苏欣战江新能源有限公司 | A kind of CIGS based thin film solar cells |
| CN106585052A (en) * | 2016-11-30 | 2017-04-26 | 浙江创盛光能源有限公司 | Laminating technology of solar cell module |
| CN108878563A (en) * | 2018-06-29 | 2018-11-23 | 汉能移动能源控股集团有限公司 | Solar cell, power generation device and preparation method of solar cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447130A (en) * | 2022-01-27 | 2022-05-06 | 浙江合特光电有限公司 | High-light-transmission flexible composite front plate and preparation method thereof |
| CN114447130B (en) * | 2022-01-27 | 2024-03-12 | 浙江合特光电有限公司 | High-light-transmittance flexible composite front plate and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5476553A (en) | Solar cell modules and method of making same | |
| CN102856403B (en) | Flexible solar battery component and packaging method thereof | |
| EP1921684A1 (en) | Solar cell module and process for manufacture thereof | |
| CN103000728B (en) | Solar cell backboard assembly and solar module | |
| JP2004531893A (en) | Encapsulated solar cell module and method of manufacturing the same | |
| WO2014167841A1 (en) | Solar cell apparatus and method for manufacturing same | |
| WO2003107438A1 (en) | Solar cell modules with improved backskin | |
| JP2009502044A (en) | Photoelectric module with improved backsheet | |
| JP2010073720A (en) | Solar cell module | |
| JP2014022473A (en) | Solar cell module | |
| CN107507879A (en) | Photovoltaic module with improved damp-proof layer | |
| CN113540276A (en) | Low-water-permeability flexible photovoltaic module and preparation method thereof | |
| JP2024050833A (en) | Transparent protective sheet for solar cell modules | |
| CN111370513A (en) | Packaging structure and packaging method of solar cell | |
| CN210403775U (en) | BIPV assembly | |
| CN111435687A (en) | Packaging structure and packaging method of solar cell | |
| EP2824718B1 (en) | Photovoltaic module and fabricating method thereof | |
| US20130153008A1 (en) | Photovoltaic module | |
| KR20150129774A (en) | Encapsulants For Solar Battery, and Solar Battery Module | |
| JPH11112007A (en) | Solar cell module and its manufacture | |
| KR101391522B1 (en) | Method for producing solar modules | |
| KR101220113B1 (en) | Solar cell module and method for manufacturing the same | |
| WO2019128085A1 (en) | Solar panel | |
| CN220121852U (en) | Photovoltaic module | |
| CN110581192A (en) | photovoltaic cell module and photovoltaic wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201225 Address after: 101400 Yanqi Street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: Beijing Huihong Technology Co., Ltd Address before: Room 107, building 2, Olympic Village street, Chaoyang District, Beijing Applicant before: HANERGY MOBILE ENERGY HOLDING GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211101 Address after: No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: Dongjun new energy Co.,Ltd. Address before: 101400 Yanqi Street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant before: Beijing Huihong Technology Co., Ltd |
|
| TA01 | Transfer of patent application right | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |