CN102501514B - Solar cell rear panel and manufacturing method thereof - Google Patents
Solar cell rear panel and manufacturing method thereof Download PDFInfo
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- CN102501514B CN102501514B CN201110389391.7A CN201110389391A CN102501514B CN 102501514 B CN102501514 B CN 102501514B CN 201110389391 A CN201110389391 A CN 201110389391A CN 102501514 B CN102501514 B CN 102501514B
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- 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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Abstract
The invention relates to the technical field of solar photovoltaic cells, in particular to a solar cell rear panel and a manufacturing method thereof. For solving the technical problem of shorter service life of the traditional solar cell rear panel, and further prolonging the service life of the solar cell rear panel, the invention provides a solar cell rear panel. The solar cell rear panel comprises a weather resistance layer, a structure reinforcement layer and a weather resistance layer in sequence, wherein the structure reinforcement layer and the weather resistance layer are fixed in a bonding manner by a bonding layer. The solar cell rear panel provided by the invention has the advantages of simple structure, easily obtained materials, excellent performance and capability of fully complying with the use requirements of the solar cell rear panel. The invention also provides a manufacturing method for the solar cell rear panel, with the advantages of simple production process and easy operation.
Description
Technical field
The present invention relates to solar-energy photo-voltaic cell technical field, relate in particular to a kind of solar cell backboard and preparation method thereof.
Background technology
Solar energy is the optimal selection that substitutes traditional thermal power generation as a kind of environmental protection, the inexhaustible energy.Because solar cell needs long term exposure in outdoor application, thus the cell piece in photovoltaic module must be protected, to prevent impact and the destruction of the environmental factors such as steam in atmosphere, oxygen, ultraviolet ray.Therefore, need to add one deck backboard in the lower end of cell piece and protect cell piece.
Both at home and abroad the research of solar cell backboard is mainly comprised to following these are several:
1, be compounded to form sandwich structure by PET polyester film and upper and lower two-layer weathering layer and improve whole backboard weatherability and barrier.Its representative is the TPT backboard of Austria according to rope Wal tower (Isovolta) company, and wherein T is the polyvinyl fluoride thin film (Tedlar film) that E.I.Du Pont Company's research and development are produced.In the middle of Tedlar film is coated as weathering layer, one deck PET polyester film is composited.
2, because the price of fluorine material is comparatively expensive, institute thinks the TPE solar cell backboard that saving cost, Madico company of the U.S. have been developed.Its structure is substantially the same with TPT, or ABA sandwich structure, but adopts ethene-vinyl acetate copolymerization (EVA) to replace the weather-proof fluorine material layer of internal layer in TPT.
3 and TPT similarly also have KPK solar cell backboard.This backboard is also to adopt sandwich structure, by 3 layers of compound backboard performance that improves.Wherein K is the Kynar film that the research and development of French Arkema are produced, i.e. the poly-inclined to one side fluorine divinyl film of PVDF, and what centre was coated is also PET polyester film.
From above three kinds of backboards, can find out, no matter how the structure of backboard changes, its structural reinforcing layer use be all PET polyester.In performance, the hot strength of PET polyester can reach 152MPa, and dielectric strength also has 16.9kv/mm, and visible outstanding mechanical stability and the good electrical insulating properties of PET is the powerful guarantee of the long-term outdoor use of solar cell backboard.Nonetheless be, only 25 years in theory with the service life that PET makees the backboard of structural reinforcing layer.So, find a kind of structural stability better, mechanical strength is larger, and the more excellent backboard basement membrane of electric insulating quality is necessary.
Summary of the invention
In order to solve existing solar cell backboard shorter technical problem (claiming again solar energy backboard) service life, further extend the service life of solar cell backboard, the invention provides a kind of solar cell backboard and preparation method thereof.Simple in structure, the material of solar cell backboard provided by the invention is easy to get, excellent performance, meets the instructions for use of solar cell backboard completely.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of solar cell backboard, its feature is that described solar cell backboard comprises weathering layer, structural reinforcing layer (also can be described as basement membrane or base material) and weathering layer successively, bonds fixing between described structural reinforcing layer and weathering layer by tack coat.Described structural reinforcing layer material can be the equal benzene polyimides of thermoplasticity, and described weathering layer material can be Kynoar.
Further, the thickness of described weathering layer is 10-30 μ m, and the thickness of described structural reinforcing layer is 150-300 μ m, and the thickness of described tack coat is 5-20 μ m.
Further, the thickness of described weathering layer is 15-25 μ m, and the thickness of described structural reinforcing layer is 180-250 μ m, and the thickness of described tack coat is 8-15 μ m.
Further, described weathering layer is fluorine material layer, and described structural reinforcing layer is Kapton.
Further, the material of described fluorine material layer comprises polyvinyl fluoride, Kynoar, ethylene-chlorotrifluoro-ethylene copolymer, ethylene-tetrafluoroethylene copolymer, vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, the combination of a kind of in PVF (tetrafluoroethene or trifluoro-ethylene) and vinyl ether co-polymer or at least two kinds, the material of described Kapton comprises Thermocurable polyimide, TPI, polyamidoimide, insoluble, infusibility polyamidoimide, the combination of a kind of in soluble polyimide or low-temperature setting polyimides or at least two kinds.
The preferred Kynoar of described fluorine material layer (PVDF).The equal benzene polyimides of described polyimides (PI) preferred thermoplastic.Better, the equal benzene polyimides of described thermoplasticity is the equal benzene polyimides of biaxial tension thermoplasticity.Its weight average molecular weight is 20000, and inherent viscosity is 0.65dl/g, 200 DEG C-400 DEG C of vitrification points, and fusing point is 228 DEG C.
Further, described bonding layer material be wink dry binding agent, anaerobism binding agent, pressure sensitive adhesives, hot-melt adhesive, thermosetting resin binding agent, emulsion and latex type binding agent and high temperature resistant binder in a kind of or combination of at least two kinds.
The preferably a kind of or at least two or more combination in polyvinyl acetate, polyurethane, polyacrylate or epoxy resin.
Further, the thickness of described weathering layer is 10-20 μ m, and the thickness of described structural reinforcing layer is 150-230 μ m, and the thickness of described tack coat is 5-12 μ m.
Further, the thickness of described weathering layer is 20-30 μ m, and the thickness of described structural reinforcing layer is 230-300 μ m, and the thickness of described tack coat is 12-20 μ m.
The present invention also provides a kind of preparation method of solar cell backboard, and its feature is that described preparation method comprises the steps:
(1) raw material of described structural reinforcing layer are made to film by stretch processes, obtain structural reinforcing layer;
(2) upper surface and the lower surface of the structural reinforcing layer that step (1) makes are coated with respectively binding agent, are heating and curing, and make its degree of cross linking reach 60%-80%;
(3) at the temperature of 140 DEG C, weathering layer is bonded in to upper surface and the lower surface of the product of step (2) gained, obtain solar cell backboard.
The present invention also provides a kind of solar cell, and its feature is that described solar cell comprises above-mentioned solar cell backboard.
The present invention also provides a kind of solar cell, and its feature is that the backboard that described solar cell comprises is made by above-mentioned preparation method.
Polyimides (PI) is the very outstanding engineering plastics of a kind of combination property, more than in mechanical property, the hot strength of unfilled PI plastics can reach 100MPa, the polypyromelliticimide (Kapton) that Du Pont produces can reach 170MPa, and biphenyl polyimide (Upilex S) can reach 400MPa left and right.Aspect thermal property, the high energy heatproof of PI is more than 400 DEG C, the minimum embrittlement phenomenon that also can not occur in the liquid helium of-269 DEG C.The dielectric strength of PI can reach 100-300KV/mm.As can be seen here, no matter in mechanical property, on thermal property or electrical insulation properties, PI is better than the performance of PET, so be more suitable for doing the structural reinforcing layer of solar cell backboard.Above-mentioned solar cell backboard provided by the invention is 85 DEG C in temperature, carries out degradation under the environment that humidity is 85%, and after standing test 2000 hours, the phenomenons such as obvious xanthochromia, bubble, warpage do not appear in backboard.Above-mentioned degradation presentation of results, the solar cell backboard that makes basement membrane of PI can reach 40 years service life in theory.
Compared with prior art, the mechanical property of solar cell backboard provided by the invention and thermal property are stable, and resistance to barrier is outstanding, and combination is between layers more firm, and back board structure is more stable, can be used for an overfill protection solar battery sheet; And due to the superpower mechanical property of polyimides, stable high and low temperature resistance and excellent insulating properties, can reach in theory 40 years the service life of solar cell backboard provided by the invention.The preparation method of solar cell backboard provided by the invention, production technology is simple, easy operating.Solar cell provided by the invention is longer service life.
Brief description of the drawings
Fig. 1 is the generalized section of solar cell backboard provided by the invention;
Wherein, 1 is weathering layer, and 2 is structural reinforcing layer, and 3 is tack coat.
Detailed description of the invention
Material therefor of the present invention and equipment are existing material and facility.For example, the equipment of biaxial tension and Thermocuring equipment are existing equipment; Polyvinyl fluoride, Kynoar (PVDF), ethylene-chlorotrifluoro-ethylene copolymer, ethylene-tetrafluoroethylene copolymer, vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, tetrafluoroethene or trifluoro-ethylene and vinyl ether co-polymer and Thermocurable polyimide, TPI, polyamidoimide, insoluble, infusibility polyamidoimide, soluble polyimide or low-temperature setting polyimides are product common on market; Wink dry binding agent, anaerobism binding agent, pressure sensitive adhesives, hot-melt adhesive, thermosetting resin binding agent, emulsion and latex type binding agent and high temperature resistant binder be conventional binding agent, described binding agent comprises the polyvinyl acetate, polyurethane, polyacrylate and the epoxy resin that are commercially available.
The preparation method of solar cell backboard provided by the invention comprises the steps:
(1) raw material of described structural reinforcing layer are made to film by stretch processes, obtain structural reinforcing layer;
(2) upper surface and the lower surface of structural reinforcing layer step (1) being made are coated with respectively upper binding agent, and heat cure 30min under the constant temperature of 130 DEG C makes its degree of cross linking reach 60%-80%;
(3) at the temperature of 140 DEG C, weathering layer (fluorine material layer) is bonded in to upper surface and the lower surface of the product of step (2) gained, obtain solar cell backboard.
As shown in Figure 1, solar cell backboard provided by the invention, comprises weathering layer 1, structural reinforcing layer 2, fixing by tack coat 3 bondings between described weathering layer 1 and structural reinforcing layer 2.
Embodiment 1:
Prepare as stated above solar cell backboard, wherein the thickness of weathering layer PVDF is 10 μ m; Structural reinforcing layer material is polyimides, and thickness is 150 μ m; The thickness of tack coat is 5 μ m.The correlated performance of gained backboard is in table 1.
Embodiment 2:
Prepare as stated above solar cell backboard, wherein the thickness of weathering layer PVDF is 20 μ m; Structural reinforcing layer material is polyimides, and thickness is 200 μ m; The thickness of tack coat is 10 μ m.The correlated performance of gained backboard is in table 1.
Embodiment 3:
Prepare as stated above solar cell backboard, wherein the thickness of weathering layer PVDF is 25 μ m; Structural reinforcing layer material is polyimides, and thickness is 250 μ m; The thickness of tack coat is 15 μ m.The correlated performance of gained backboard is in table 1.
Embodiment 4:
Prepare as stated above solar cell backboard, wherein the thickness of weathering layer PVDF is 30 μ m; Structural reinforcing layer material is polyimides, and thickness is 300 μ m; The thickness of tack coat is 20 μ m.The correlated performance of gained backboard is in table 1.
The KPK that comparative example 1 Suzhou Saiwu Application Technology Co., Ltd produces;
The HY-FTF that comparative example 2 Pinghu City, Zhejiang Province Hua Yuan photovoltaic material Co., Ltds produce.
Table 1
Note: table 1 is to table 5, and MD is that longitudinally TD is horizontal.
Embodiment 5:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 20 μ m; Structural reinforcing layer material is Thermocurable polyimide, and thickness is 230 μ m; Bonding layer material is polyacrylate, and thickness is 12 μ m.The correlated performance of gained backboard is in table 2.
Embodiment 6:
Prepare as stated above solar cell backboard, wherein weathering layer material is polyvinyl fluoride, and thickness is 15 μ m; Structural reinforcing layer material is polyamidoimide, and thickness is 180 μ m; Bonding layer material is polyurethane, and thickness is 8 μ m.The correlated performance of gained backboard is in table 2.
Embodiment 7:
Prepare as stated above solar cell backboard, wherein weathering layer material is ethylene-chlorotrifluoro-ethylene copolymer, and thickness is 20 μ m; Structural reinforcing layer material is insoluble, infusibility polyamidoimide, and thickness is 210 μ m; Bonding layer material is epoxy resin, and thickness is 13 μ m.The correlated performance of gained backboard is in table 2.
Embodiment 8:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 15 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 200 μ m; Bonding layer material is polyvinyl acetate, and thickness is 10 μ m.The correlated performance of gained backboard is in table 2.
Embodiment 9:
Prepare as stated above solar cell backboard, wherein weathering layer material is ethylene-tetrafluoroethylene copolymer, and thickness is 25 μ m; Structural reinforcing layer material is soluble polyimide, and thickness is 280 μ m; Bonding layer material is epoxy resin, and thickness is 18 μ m.The correlated performance of gained backboard is in table 2.
Embodiment 10:
Prepare as stated above solar cell backboard, wherein weathering layer material is polyvinyl fluoride, and thickness is 12 μ m; Structural reinforcing layer material is soluble polyimide, and thickness is 270 μ m; Bonding layer material is polyacrylate, and thickness is 8 μ m.The correlated performance of gained backboard is in table 2.
Table 2
Embodiment 11:
Prepare as stated above solar cell backboard, wherein weathering layer material is trifluoro-ethylene and vinyl ether co-polymer, and thickness is 18 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 180 μ m; Bonding layer material is epoxy resin, and thickness is 15 μ m.The correlated performance of gained backboard is in table 3.
Embodiment 12:
Prepare as stated above solar cell backboard, wherein weathering layer material is vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, and thickness is 23 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 180 μ m; Bonding layer material is polyurethane, and thickness is 18 μ m.The correlated performance of gained backboard is in table 3.
Embodiment 13:
Prepare as stated above solar cell backboard, wherein weathering layer material is trifluoro-ethylene and vinyl ether co-polymer, and thickness is 25 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 200 μ m; Bonding layer material is polyacrylate, and thickness is 20 μ m.The correlated performance of gained backboard is in table 3.
Embodiment 14:
Prepare as stated above solar cell backboard, wherein weathering layer material is polytetrafluoroethylene (PTFE), and thickness is 30 μ m; Structural reinforcing layer material is polyamidoimide, and thickness is 150 μ m; Bonding layer material is polyvinyl acetate, and thickness is 5 μ m.The correlated performance of gained backboard is in table 3.
Embodiment 15:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 10 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 300 μ m; Bonding layer material is polyurethane, and thickness is 15 μ m.The correlated performance of gained backboard is in table 3.
Embodiment 16:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 25 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 150 μ m; Bonding layer material is polyvinyl acetate, and thickness is 20 μ m.The correlated performance of gained backboard is in table 3.
Table 3
Embodiment 17:
Prepare as stated above solar cell backboard, wherein weathering layer material is polyvinyl fluoride, and thickness is 10 μ m; Structural reinforcing layer material is Thermocurable polyimide, and thickness is 150 μ m; Bonding layer material is epoxy resin, and thickness is 5 μ m.The correlated performance of gained backboard is in table 4.
Embodiment 18:
Prepare as stated above solar cell backboard, wherein weathering layer material is vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, and thickness is 20 μ m; Structural reinforcing layer material is soluble polyimide, and thickness is 230 μ m; Bonding layer material is polyurethane, and thickness is 12 μ m.The correlated performance of gained backboard is in table 4.
Embodiment 19:
Prepare as stated above solar cell backboard, wherein weathering layer material is tetrafluoroethene and vinyl ether co-polymer, and thickness is 15 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 190 μ m; Bonding layer material is polyacrylate, and thickness is 9 μ m.The correlated performance of gained backboard is in table 4.
Embodiment 20:
Prepare as stated above solar cell backboard, wherein weathering layer material is polytetrafluoroethylene (PTFE), and thickness is 18 μ m; Structural reinforcing layer material is insoluble, infusibility polyamidoimide, and thickness is 210 μ m; Bonding layer material is polyvinyl acetate, and thickness is 12 μ m.The correlated performance of gained backboard is in table 4.
Embodiment 21:
Prepare as stated above solar cell backboard, wherein weathering layer material is ethylene-chlorotrifluoro-ethylene copolymer, and thickness is 14 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 220 μ m; Bonding layer material is polyurethane, and thickness is 9 μ m.The correlated performance of gained backboard is in table 4.
Embodiment 22:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 22 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 195 μ m; Bonding layer material is polyvinyl acetate, and thickness is 12 μ m.The correlated performance of gained backboard is in table 4.
Table 4
Embodiment 23:
Prepare as stated above solar cell backboard, wherein weathering layer material is polyvinyl fluoride, and thickness is 20 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 230 μ m; Bonding layer material is epoxy resin, and thickness is 12 μ m.The correlated performance of gained backboard is in table 5.
Embodiment 24:
Prepare as stated above solar cell backboard, wherein weathering layer material is vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, and thickness is 30 μ m; Structural reinforcing layer material is the equal benzene polyimides of thermoplasticity, and thickness is 300 μ m; Bonding layer material is polyurethane, and thickness is 20 μ m.The correlated performance of gained backboard is in table 5.
Embodiment 25:
Prepare as stated above solar cell backboard, wherein weathering layer material is trifluoro-ethylene and vinyl ether co-polymer, and thickness is 25 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 270 μ m; Bonding layer material is polyacrylate, and thickness is 16 μ m.The correlated performance of gained backboard is in table 5.
Embodiment 26:
Prepare as stated above solar cell backboard, wherein weathering layer material is polytetrafluoroethylene (PTFE), and thickness is 24 μ m; Structural reinforcing layer material is polyamidoimide, and thickness is 210 μ m; Bonding layer material is polyvinyl acetate, and thickness is 13 μ m.The correlated performance of gained backboard is in table 5.
Embodiment 27:
Prepare as stated above solar cell backboard, wherein weathering layer material is the mixture (weight ratio of PVDF and polytetrafluoroethylene (PTFE) is 1:1) of PVDF and polytetrafluoroethylene (PTFE), and thickness is 26 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 260 μ m; Bonding layer material is the mixture (weight ratio of polyurethane and polyvinyl acetate is 1:1) of polyurethane and polyvinyl acetate, and thickness is 18 μ m.The correlated performance of gained backboard is in table 5.
Embodiment 28:
Prepare as stated above solar cell backboard, wherein weathering layer material is PVDF, and thickness is 25 μ m; Structural reinforcing layer material is the mixture (weight ratio of the equal benzene polyimides of thermoplasticity and low-temperature setting polyimides is 1:1) of the equal benzene polyimides of thermoplasticity and low-temperature setting polyimides, and thickness is 290 μ m; Bonding layer material is polyvinyl acetate, and thickness is 19 μ m.The correlated performance of gained backboard is in table 5.
Table 5
Experimental data by table 1-table 5 can draw, the mechanical property of solar cell backboard provided by the invention, and thermal property is stable, and bonding is between layers more firm, can be widely used in area of solar cell.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Every equalization that content is done according to the present invention changes and modifies, and is all encompassed in the scope of the claims of the present invention.
Claims (2)
1. a preparation method for solar cell backboard, is characterized in that, described solar cell backboard comprises weathering layer, structural reinforcing layer and weathering layer successively, bonds fixing between described structural reinforcing layer and weathering layer by tack coat; Described weathering layer is fluorine material layer, and described structural reinforcing layer is Kapton;
The material of described fluorine material layer is selected from Kynoar, vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer or its combination, and the material of described Kapton is selected from TPI, low-temperature setting polyimides or its combination;
Described bonding layer material is selected from polyvinyl acetate or polyurethane;
Described preparation method comprises the steps:
(1) raw material of described structural reinforcing layer are made to film by stretch processes, obtain structural reinforcing layer;
(2) upper surface and the lower surface of structural reinforcing layer step (1) being made are coated with respectively upper binding agent, and heat cure 30min under the constant temperature of 130 DEG C makes its degree of cross linking reach 60%-80%;
(3) at the temperature of 140 DEG C, weathering layer is bonded in to upper surface and the lower surface of the product of step (2) gained, obtain solar cell backboard.
2. a preparation method for solar cell backboard as claimed in claim 1, is characterized in that, described weathering layer material is PVDF, and thickness is 10 μ m; Structural reinforcing layer material is low-temperature setting polyimides, and thickness is 300 μ m; Bonding layer material is polyurethane, and thickness is 15 μ m;
According to hot strength and the elongation at break of ASTMD-882 standard testing backboard, according to ASTMD-1204 standard testing backboard at 150 DEG C, the thermal contraction of 30min, according to ASTMD-1876 standard testing backboard and 180 ° of peel strengths of peeling off of binding agent, according to the water vapor transmittance of ASTMF-1249 standard testing backboard; The solar cell backboard obtaining, longitudinal tensile strength is 448N/cm, transverse tensile strength is 460N/cm, longitudinal fracture percentage elongation is 128%, transverse breakage percentage elongation is 124%, and longitudinally percent thermal shrinkage is 0.63%, and laterally percent thermal shrinkage is 0.46%, with binding agent peel strength be 72N/cm, water vapor transmittance is 0.98g/m
2.24h.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102983193B (en) * | 2012-11-26 | 2015-09-16 | 山东东岳高分子材料有限公司 | A kind of high-adhesion solar cell backboard film and preparation method thereof |
| CN104009106B (en) * | 2014-05-28 | 2016-08-24 | 乐凯胶片股份有限公司 | A kind of composite solar battery notacoria |
| CN104393080B (en) * | 2014-11-12 | 2016-05-04 | 无锡中洁能源技术有限公司 | Vacuum plasma modified solar battery back-sheet and preparation method thereof |
| CN104518042A (en) * | 2014-12-17 | 2015-04-15 | 无锡德鑫太阳能电力有限公司 | Solar cell backboard |
| CN107195717B (en) * | 2017-05-15 | 2018-12-18 | 句容协鑫集成科技有限公司 | Solar cell backboard |
| CN107256678A (en) * | 2017-08-09 | 2017-10-17 | 南京信息工程大学 | A kind of electronic information display |
| WO2022011676A1 (en) * | 2020-07-17 | 2022-01-20 | 南京江东实业总公司白鹭公司 | Solar cell backsheet |
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| US20100151180A1 (en) * | 2008-10-13 | 2010-06-17 | Bravet David J | Multi-layer fluoropolymer film |
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| US5139878A (en) * | 1991-08-12 | 1992-08-18 | Allied-Signal Inc. | Multilayer film constructions |
| US20100151180A1 (en) * | 2008-10-13 | 2010-06-17 | Bravet David J | Multi-layer fluoropolymer film |
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Application publication date: 20120620 Assignee: Ningbo Changlong New Material Co.,Ltd. Assignor: NINGBO SOLARTRON TECHNOLOGY Co.,Ltd. Contract record no.: X2021330000199 Denomination of invention: A preparation method of solar cell backplane Granted publication date: 20140723 License type: Common License Record date: 20210831 |
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