CN103606578B - Solar module and preparation method thereof - Google Patents
Solar module and preparation method thereof Download PDFInfo
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- CN103606578B CN103606578B CN201310565596.5A CN201310565596A CN103606578B CN 103606578 B CN103606578 B CN 103606578B CN 201310565596 A CN201310565596 A CN 201310565596A CN 103606578 B CN103606578 B CN 103606578B
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- solar panel
- adhesive tape
- conductive adhesive
- pressure sensitive
- sensitive conductive
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- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000002390 adhesive tape Substances 0.000 claims abstract description 131
- 239000011347 resin Substances 0.000 claims abstract description 58
- 229920005989 resin Polymers 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 57
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000002522 swelling effect Effects 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 38
- -1 polyethylene Polymers 0.000 claims description 35
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 29
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 23
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 239000011231 conductive filler Substances 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 239000006229 carbon black Substances 0.000 claims description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000012948 isocyanate Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 5
- 150000005840 aryl radicals Chemical class 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 5
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 5
- BDQNKCYCTYYMAA-UHFFFAOYSA-N 1-isocyanatonaphthalene Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1 BDQNKCYCTYYMAA-UHFFFAOYSA-N 0.000 claims description 4
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 4
- 235000010290 biphenyl Nutrition 0.000 claims description 4
- 239000004305 biphenyl Substances 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 4
- KQWGXHWJMSMDJJ-UHFFFAOYSA-N cyclohexyl isocyanate Chemical class O=C=NC1CCCCC1 KQWGXHWJMSMDJJ-UHFFFAOYSA-N 0.000 claims description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- CCJAYIGMMRQRAO-UHFFFAOYSA-N 2-[4-[(2-hydroxyphenyl)methylideneamino]butyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCCN=CC1=CC=CC=C1O CCJAYIGMMRQRAO-UHFFFAOYSA-N 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- VBHKXTOPDZOUPW-UHFFFAOYSA-N NCC(C(=O)O)=C(CC)N Chemical compound NCC(C(=O)O)=C(CC)N VBHKXTOPDZOUPW-UHFFFAOYSA-N 0.000 claims description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 3
- XKQUPDYGQZOWBF-UHFFFAOYSA-N cyclohexylcyclohexane methane Chemical compound C.C1CCC(CC1)C1CCCCC1 XKQUPDYGQZOWBF-UHFFFAOYSA-N 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000003490 calendering Methods 0.000 description 23
- 238000003825 pressing Methods 0.000 description 23
- 239000005341 toughened glass Substances 0.000 description 23
- 235000014653 Carica parviflora Nutrition 0.000 description 22
- 241000243321 Cnidaria Species 0.000 description 22
- 230000003139 buffering effect Effects 0.000 description 22
- 238000002156 mixing Methods 0.000 description 22
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 22
- 239000004721 Polyphenylene oxide Substances 0.000 description 21
- 229920000570 polyether Polymers 0.000 description 21
- 238000005660 chlorination reaction Methods 0.000 description 19
- 229920000728 polyester Polymers 0.000 description 19
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 17
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 8
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 229920005573 silicon-containing polymer Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- ZRXHQNQYIKVKNQ-UHFFFAOYSA-N 2-ethylhexanoic acid;zinc Chemical compound [Zn].CCCCC(CC)C(O)=O ZRXHQNQYIKVKNQ-UHFFFAOYSA-N 0.000 description 2
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical class CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- SIAIIXKVTSMNBQ-UHFFFAOYSA-N [O].C(C)(C)(CC(C)(C)C)C1=CC=C(C=C1)O Chemical compound [O].C(C)(C)(CC(C)(C)C)C1=CC=C(C=C1)O SIAIIXKVTSMNBQ-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- HGRNRWNRNVPVMM-UHFFFAOYSA-N benzene-1,3-diol;benzoic acid Chemical compound OC1=CC=CC(O)=C1.OC(=O)C1=CC=CC=C1 HGRNRWNRNVPVMM-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a kind of solar module and preparation method thereof.In this solar module, comprise solar panel, convergent belt and encapsulated layer; Wherein, convergent belt is arranged on solar panel, and encapsulated layer is arranged on convergent belt away from solar panel side; And solar panel is connected by pressure sensitive conductive adhesive tape with convergent belt, containing resin base material in pressure sensitive conductive adhesive tape, the material of encapsulated layer is to the material of resin base material without swelling action.In this solar module, be connected by pressure sensitive conductive adhesive tape between solar panel with convergent belt.This pressure sensitive conductive adhesive tape, only need apply certain pressure, just convergent belt can be assemblied on solar panel.This process avoids use conductive silver paste, and without the need to heating, greatly reduce production cost and the energy consumption of solar cell.
Description
Technical field
The present invention relates to solar cell and manufacture field, in particular to a kind of solar module and preparation method thereof.
Background technology
Solar cell is as a kind of green energy resource, and in energy-saving and emission-reduction, reduce greenhouse effect aspect and play significant role, the role in global energy strategy is more and more important, about the research of solar cell is also more and more extensive.Wherein, for the electric current in solar panel is derived, when producing, need at its surface-mounted convergent belt.Usually following several assembling mode is had:
(1) carry out Screen-printed conductive silver slurry on solar panel surface, by conductive silver paste high temperature sintering, form main grid.Then, under 300 DEG C and certain pressure, convergent belt is welded on the main grid position of solar panel.When adopting in this way, need use the energy of expensive conductive silver paste, at substantial and be equipped with firing equipment;
(2) first utilize glue spraying equipment on solar panel, spray the conductive silver glue of specific width, under a certain pressure, convergent belt is laid on conductive silver glue.Then under the condition of 90 ~ 180 DEG C, carry out elargol solidification, realize the assembling of convergent belt.When adopting in this way, to mass energy be consumed on the one hand, need on the other hand to use glue spraying equipment and the equipment that is heating and curing.Such as, a kind of method using conductive tape to connect solar cell both positive and negative polarity is disclosed at patent JP124439/2007.Adopt the method can starch main grid at crystal silicon solar energy battery surface printing silver.But conductive tape used in this patent, still needs to carry out crosslinking curing at 200 DEG C to ensure convergent belt and the good conductivity of solar cell.Although the method reduces the cost of raw material to a certain extent, still need to consume mass energy, and be equipped with firing equipment.
Generally speaking, at present by the method on convergent belt assembling solar battery plate, all there is the shortcoming that cost is high, energy consumption is large.
Summary of the invention
The present invention aims to provide a kind of solar module and preparation method thereof, the shortcoming that during to solve the assembling of convergent belt in prior art, cost is high, energy consumption is large.
To achieve these goals, according to an aspect of the present invention, provide a kind of solar module, it comprises solar panel; Convergent belt, is arranged on solar panel; Encapsulated layer, is arranged on the side of convergent belt away from solar panel; And solar panel is connected by pressure sensitive conductive adhesive tape with convergent belt, containing resin base material in pressure sensitive conductive adhesive tape, the material of encapsulated layer is to the material of resin base material without swelling action.
Further, above-mentioned resin base material is 1) there is the polyacrylics, 2 of structure shown in formula I) there is the polyurethane based resin, 3 of formula II structure) there is the silicone based resin, 4 of formula III structure) polyethylene, 5) EVA and 6) one or more in Corvic, wherein, the structure of formula I, formula II and formula III is as follows:
In above-mentioned formula I, m is 20 to 2000, n is 1 to 2000; R1 is hydrogen atom or methyl, R2 to be carbon number be 1 ~ 20 alkyl, n A ' unit is separately selected from the group be made up of the monomeric unit of methyl-acrylic acid, methyl-acrylic acid hydroxyl methyl esters, methyl-acrylic acid hydroxyl ethyl ester, itaconic acid, acrylamide, Methacrylamide, N hydroxymethyl acrylamide, maleic anhydride, acrylonitrile, styrene, diamino ethyl methacrylic acid and glycidyl acrylate; In above-mentioned formula II, k is 30 to 1500; B ' in k construction unit is separately for carbon number is 3 × 10
3~ 2 × 10
5the monomeric unit of alkane, C ' is separately selected from by aminomethyl phenyl vulcabond, methyl diphenyl isocyanate, IPDI, hexamethylene diisocyanate, methane bicyclohexane based isocyanate, naphthyl isocyanate, the group that forms the monomeric unit of phenyl, Isosorbide-5-Nitrae cyclohexyl isocyanates and dimethylenebenzene isocyanates; In above-mentioned formula III, g is 30 to 1000; The aryl radical that the alkoxyl that the alkyl that it is 1 ~ 8 that R3, R4, R5 and R6 are separately selected from by hydrogen, hydroxyl, carbon number, carbon number are 1 ~ 8, phenyl ring number are 1 ~ 8 and the group that the siloxy that silicon atom number is 1 ~ 8 forms.
Further, above-mentioned encapsulated layer is EVA film, PVB film, PO film or Inomer film.
Further, in above-mentioned solar module, resin base material described in pressure sensitive conductive adhesive tape is the polyacrylics with structure shown in formula I, and described encapsulated layer is EVA film; Or resin base material described in pressure sensitive conductive adhesive tape is have the polyurethane based resin of formula II structure or have the silicone based resin of formula III structure, and described encapsulated layer is EVA film, PVB film, PO film or Inomer film; Or resin base material comprises one or more in polyethylene, EVA and Corvic described in pressure sensitive conductive adhesive tape, described encapsulated layer is EVA film, PO film or Inomer film.
Further, above-mentioned pressure sensitive conductive adhesive tape weight percentage comprises: the resin base material of 29 ~ 80%, the conductive filler of 20 ~ 71%, and wherein, the weight average molecular weight of resin base material is 5 × 10
4~ 3 × 10
6, decentralization is 2 ~ 25.
Further, above-mentioned conductive filler comprise in silver powder, nickel powder, bronze, silver-plated nickel powder, gold-plated nickel powder, silver-plated copper powder, gold-plated copper powder, nickel-plated copper powder, nickel plating carbon black, silver-plated carbon black, gold-plated carbon black, nickel plated aluminum powder, silvered aluminum powder and gold-plated aluminium powder one or more, preferably, the particle diameter of conductive filler is 10nm ~ 20 μm.
Further, above-mentioned pressure sensitive conductive adhesive tape weight percentage also comprises the auxiliary agent of 0.5 ~ 5%, this auxiliary agent comprise in age resister, anti ultraviolet agent and levelling agent one or more.
Further, in above-mentioned solar module, solar panel is single-crystalline-silicon solar-cell panel, polysilicon solar cell plate or heterojunction crystal silicon cell plate; Convergent belt be surface be coated with in the copper strips of tin layers, tin lead layer, tin plumbous silver layer, aluminium lamination or silver layer one or more.
According to a further aspect in the invention, provide a kind of preparation method of solar module, it comprises the steps: pressure sensitive conductive adhesive tape to be laid on solar panel, is laid on by convergent belt on pressure sensitive conductive adhesive tape, is formed and treats nip; To treating that nip is exerted pressure, so that convergent belt is assemblied on solar panel; According to the kind of resin base material contained in pressure sensitive conductive adhesive tape, to select resin matrix without the material of swelling action as encapsulated layer; Encapsulated layer is laid on convergent belt away from solar panel side, encapsulated layer is exerted pressure towards solar panel, so that convergent belt and solar panel are encapsulated.
Further, to treating in the step that nip is exerted pressure: to treating that nip entirety is exerted pressure, to be assemblied on solar panel by convergent belt, preferably, pressure of exerting pressure is 500 ~ 10000pa, and the time of exerting pressure is 5 ~ 120s, and area of exerting pressure is greater than the area treating nip.
Further, in the above-mentioned step that encapsulated layer is exerted pressure towards solar panel, pressure of exerting pressure is 300 ~ 2000pa, and the time of exerting pressure is 5 ~ 60s.
Apply this solar module provided by the present invention and preparation method thereof, be connected by pressure sensitive conductive adhesive tape between solar panel with convergent belt.This pressure sensitive conductive adhesive tape, only need apply certain pressure, just convergent belt can be assemblied on solar panel.This process avoids use conductive silver paste, and without the need to heating, greatly reduce production cost and the energy consumption of solar cell.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.The present invention is described in detail below in conjunction with embodiment.
In order to solve propose in background technology by the problem that method cost is high, energy consumption is large on convergent belt assembling solar battery plate, inventor provides a kind of solar module, and it comprises solar panel, convergent belt and encapsulated layer.Wherein, convergent belt is arranged on solar panel, and encapsulated layer is arranged on the side of convergent belt away from solar panel.Further, above-mentioned solar panel is connected by pressure sensitive conductive adhesive tape with convergent belt, and containing resin base material in this pressure sensitive conductive adhesive tape, and the material of encapsulated layer is to the material of described resin base material without swelling action.
In solar module provided by the present invention, pressure sensitive conductive adhesive tape is utilized to be connected to solar panel and convergent belt.The solar module with this structure, when assembling convergent belt, only need give certain pressure, pressure sensitive conductive adhesive tape be reacted, just can realize the connection between convergent belt and solar panel and conducting.This solar module without the need to arranging main grid on solar panel, namely without the need to using conductive silver paste, reduces cost of material in preparation process.Meanwhile, this solar module replaces elargol with pressure sensitive conductive adhesive tape in preparation process, uses firing equipment, reduce energy resource consumption when avoiding assembling convergent belt.
In solar module, encapsulated layer is positioned at the top of solar panel and convergent belt, and the sidewall of encapsulated layer and solar panel and convergent belt fits together closely.State on the invention in provided this solar module, be connected by pressure sensitive conductive adhesive tape between solar panel with convergent belt.In the process that the sidewall of encapsulated layer and solar panel and convergent belt is fitted closely, inevitably contact to some extent with pressure-sensing conducting resin band.And encapsulated layer mostly is the film suppressed by resin material.In the preparation process of these resin materials, for improving the processing characteristics of resin material, inevitably add various auxiliary agent wherein, as plasticizer etc.When encapsulated layer contacts for a long time with pressure-sensing conducting resin band, these auxiliary agents in encapsulated layer based on the similar principle mixed, likely to the interface enrichment that encapsulated layer contacts with pressure sensitive conductive adhesive tape.In the long application process of solar module, these auxiliary agents to interface enrichment just likely swelling resin base material even dissolved in pressure-sensitive conductive tape, and then disintegrate the annexation of convergent belt and solar panel, thus affect series resistance and the photoelectric converting function of solar module.Take into full account the matching relationship of pressure sensitive conductive adhesive tape and encapsulated layer in the present invention, to have applied resin base material without the material of swelling action as the material of encapsulated layer.There is transfer and the swelling resin base material even dissolved in pressure-sensitive conductive tape in the auxiliary agent avoided in encapsulated layer.Adopt pressure sensitive conductive adhesive tape and the encapsulated layer of coupling mutually, can ensure that in solar module, the assembly cost of convergent belt is low, energy consumption is low, the photoelectric converting function of solar module can be ensured simultaneously.
State on the invention in solar module, operable resin base material preferably includes but is not limited to 1) there is the polyacrylics, 2 of structure shown in formula I) there is the polyurethane based resin, 3 of formula II structure) there is the silicone based resin, 4 of formula III structure) polyethylene, 5) EVA and 6) one or more in Corvic, wherein, the structure of formula I, formula II and formula III is as follows:
In formula I, m is 20 to 2000, n is 1 to 2000; R1 is hydrogen atom or methyl, R2 to be carbon number be 1 ~ 20 alkyl, n A ' unit is separately selected from the group be made up of the monomeric unit of methyl-acrylic acid, methyl-acrylic acid hydroxyl methyl esters, methyl-acrylic acid hydroxyl ethyl ester, itaconic acid, acrylamide, Methacrylamide, N hydroxymethyl acrylamide, maleic anhydride, acrylonitrile, styrene, diamino ethyl methacrylic acid and glycidyl acrylate;
In formula II, k is 30 to 1500; B ' in k construction unit is separately for carbon number is 3 × 10
3~ 2 × 10
5the monomeric unit of alkane, C ' is separately selected from by aminomethyl phenyl vulcabond, methyl diphenyl isocyanate, IPDI, hexamethylene diisocyanate, methane bicyclohexane based isocyanate, naphthyl isocyanate, the group that forms the monomeric unit of phenyl, Isosorbide-5-Nitrae cyclohexyl isocyanates and dimethylenebenzene isocyanates;
In formula III, g is 30 to 1000; In the aryl radical that the alkoxyl that the alkyl that it is 1 ~ 8 that R3, R4, R5 and R6 are separately selected from by hydrogen, hydroxyl, carbon number, carbon number are 1 ~ 8, phenyl ring number are 1 ~ 8 and the group that the siloxy that silicon atom number is 1 ~ 8 forms.
In above-mentioned solar module provided by the invention, encapsulated layer is preferably EVA film, PVB film, PO film or Inomer film.
The pressure sensitive conductive adhesive tape adopting above-mentioned resin matrix and conductive filler to be formed, has more excellent adhesive property and electric conductivity.This pressure sensitive conductive adhesive tape ensure that solar module is when opto-electronic conversion, and the electric current formed can export in time.
In a kind of optimal way provided by the invention, in solar module, pressure sensitive conductive adhesive tape mates mutually with between encapsulated layer.Particularly: when in pressure sensitive conductive adhesive tape, resin base material employing has the polyacrylics of structure shown in formula I, encapsulated layer material adopts EVA film; When resin base material in pressure sensitive conductive adhesive tape be have formula II structure polyurethane based resin or there is the silicone based resin of formula III structure time, encapsulated layer material adopts EVA film, PVB film, PO film or Inomer film; When in pressure sensitive conductive adhesive tape, resin base material comprises one or more in polyethylene, EVA and Corvic, encapsulated layer material is EVA film, PO film or Inomer film.
State on the invention in solar module, used pressure sensitive conductive adhesive tape directly can adopt existing pressure sensitive conductive adhesive tape in prior art.But in order to cohesive force and the conductivity of comprehensive pressure sensitive conductive adhesive tape, both are made to reach better balance point, in the preferred embodiment of the present invention, pressure sensitive conductive adhesive tape weight percentage comprises: the resin base material of 29 ~ 81% and the conductive filler of 20 ~ 71%, wherein, the weight average molecular weight of resin base material is 5 × 10
4~ 3 × 10
6, decentralization is 2 ~ 25.
State in the pressure sensitive conductive adhesive tape of solar module on the invention, operable conductive filler is a lot.Those skilled in the art, according to instruction of the present invention, reasonably can select concrete conductive filler kind.Preferably, conductive filler include but not limited in silver powder, nickel powder, bronze, silver-plated nickel powder, gold-plated nickel powder, silver-plated copper powder, gold-plated copper powder, nickel-plated copper powder, nickel plating carbon black, silver-plated carbon black, gold-plated carbon black, nickel plated aluminum powder, silvered aluminum powder and gold-plated aluminium powder one or more, more preferably, the particle diameter of conductive filler is 10nm ~ 20 μm.Excessive or the too small serviceability that all can affect pressure sensitive conductive adhesive tape of the particle diameter of conductive filler.Particle diameter is too small, and its dispersiveness in pressure sensitive conductive adhesive tape can be deteriorated, and then makes pressure sensitive conductive adhesive tape obtain electric conductivity to be deteriorated; Particle diameter is excessive, is also unfavorable for the balance of caking property and conductivity in pressure sensitive conductive adhesive tape.
In the above-mentioned solar module of the present invention, pressure sensitive conductive adhesive tape weight percentage also comprises the auxiliary agent of 0.5 ~ 5%.Operable auxiliary agent includes but not limited to one or more in heat stabilizer, anti ultraviolet agent and levelling agent in this scenario.Preferably, heat stabilizer is selected from one or more in barium soap, cadmium soap, zinc soap, organic phosphite, 2 ethyl hexanoic acid salt, phenates, benzoate and stearate; Anti ultraviolet agent is selected from phenyl salicytate, 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) BTA, 2,4-dihydroxy benaophenonel, ESCALOL 567, UV-531,2-(2 '-hydroxyl-3 ', 5 '-two tertiary phenyl)-5-chlorination BTA, single benzoic acid resorcinol and 2, one or more in 2 '-thiobis (4-tertiary octyl phenol oxygen base) nickel; Levelling agent be selected from dimethyl silicone polymer, polyether polyester modified organic silicon oxygen alkane, alkyl-modified organosiloxane and acrylate one or more.Those skilled in the art are according to instruction of the present invention, for the consideration to pressure sensitive conductive adhesive tape resistance to ag(e)ing, ultraviolet-resistent property and levelability, reasonably can select suitable age resister, anti ultraviolet agent, levelling agent and their concrete consumption, not repeat them here.
In solar module provided by the present invention, operable solar panel preferably includes but is not limited to single-crystalline-silicon solar-cell panel, polysilicon solar cell plate or heterojunction crystal silicon cell plate; Operable convergent belt preferably include but be not limited to that surface is coated with in the copper strips of tin layers, tin lead layer, tin plumbous silver layer, aluminium lamination or silver layer one or more.Those skilled in the art have the ability to select rational solar panel and convergent belt.
Under those skilled in the art state the instruction of solar module corresponding construction on the invention, have the ability to select suitable mode to obtain above-mentioned solar module.In the preferred embodiment of the present invention, the preparation method of above-mentioned solar module, comprises the following steps: be laid on solar panel by pressure sensitive conductive adhesive tape, is laid on by convergent belt on pressure sensitive conductive adhesive tape, is formed and treats nip; To treating that nip is exerted pressure, so that convergent belt is assemblied on solar panel; According to the kind of resin base material contained in pressure sensitive conductive adhesive tape, to select this resin matrix without the material of swelling action as encapsulated layer; Encapsulated layer is laid on convergent belt away from solar panel side, encapsulated layer is exerted pressure towards solar panel, so that convergent belt and solar panel are encapsulated.
In this preparation method provided by the present invention, the step of assembling convergent belt, without the need to adopting firing equipment, only need apply pressure and just convergent belt can be assemblied on solar panel in bonding pad.This method significantly reduces the assembly cost of convergent belt, reduces energy consumption.In addition, before will convergent belt being assembled, to have selected this resin matrix without the material of swelling action as encapsulated layer according to the kind of resin base material contained in pressure sensitive conductive adhesive tape.This pressure sensitive conductive adhesive tape can effectively prevent in solar energy use procedure with mutual coupling of encapsulated layer, and pressure sensitive conductive adhesive tape is because of the transfer of the auxiliary agent in encapsulated layer and swelling and phenomenon of coming unglued that is that occur.Thus can prevent because the solar cell series resistance that causes of coming unglued of pressure sensitive conductive adhesive tape is excessive, the problem of opto-electronic conversion power drop.
Under the teachings of the present invention, those skilled in the art have the ability reasonably to draft concrete assembly technology.In a kind of optimal way of the present invention, to when exerting pressure until nip, for treating that nip entirety is exerted pressure, so that convergent belt is assemblied on solar panel, more preferably pressure of exerting pressure is 500 ~ 10000pa, and the time of exerting pressure is 5 ~ 120s, and area of exerting pressure is greater than the area treating nip.In this optimal way, adopt large-area planar pressing mode to treat nip and exert pressure.This mode of exerting pressure effectively can reduce hidden the splitting that solar panel occurs due to unbalance stress and even break, and then improves the rate of manufacturing a finished product, and reduces quality cost.
Under the teachings of the present invention, those skilled in the art have the ability reasonably to draft the concrete assembly technology of step of exerting pressure towards solar panel to encapsulated layer.In one preferably mode, the pressure of exerting pressure of exerting pressure to encapsulated layer is 300 ~ 2000pa, and the time of exerting pressure is 5 ~ 60s.
Be described in further detail the present invention below in conjunction with specific embodiment, these embodiments can not be interpreted as restriction the present invention scope required for protection.
Embodiment 1
By the poly hydroxy ethyl acrylate of 78g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 20g diameter is the silver powder of 50nm, the dimethyl silicone polymer mechanical blending of the barium stearate of 1g, the 2,4-DihydroxyBenzophenone of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 120s can obtain the solar panel assembling convergent belt.
The 60s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 300pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 2
By the poly hydroxy ethyl acrylate of 29g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 67g diameter is the silver powder of 50nm, the dimethyl silicone polymer mechanical blending of the 2 ethyl hexanoic acid zinc of 3g, the 2,4-DihydroxyBenzophenone of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 40s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 3
By the poly hydroxy ethyl acrylate of 80g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 19g diameter is the silver powder of 50nm, the dimethyl silicone polymer mechanical blending of the 2 ethyl hexanoic acid zinc of 0.8g, the 2,4-DihydroxyBenzophenone of 0.1g and 0.1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 10000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 40s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 4
By the poly hydroxy ethyl acrylate of 27g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 71g diameter is silver powder, the zinc stearate of 1g, 5 '-two tertiary phenyl of 0.5g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 40s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 5
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 45g diameter is silver powder, the zinc stearate of 3g, 5 '-two tertiary phenyl of 1g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 20s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 6
By the polyether Glycols of 50g and 4,4`-methyl diphenylene diisocyanate copolymer, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 49.5g diameter is silver powder, the zinc stearate of 0.3g, 5 '-two tertiary phenyl of 0.1g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 0.1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 800pa, pressing 24s can obtain the solar panel assembling convergent belt.
The 20s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 7
By the polyether Glycols of 50g and 4,4`-methyl diphenylene diisocyanate copolymer, (molecular weight is 5 × 10
4, decentralization Mw/Mn=2.5), 48g diameter is silver powder, the zinc stearate of 1g, 5 '-two tertiary phenyl of 0.5g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1500pa, pressing 5s can obtain the solar panel assembling convergent belt.
The 20s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 8
Be 3 × 10 by the EVA(molecular weight of 50g
6, decentralization Mw/Mn=25), 48g diameter is silver powder, the zinc stearate of 1g, 5 '-two tertiary phenyl of 0.5g of 50nm)-5-chlorination BTA and 0.5% polyether polyester modified organic silicon oxygen alkane mechanical blending form the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 40s can obtain the solar panel assembling convergent belt.
The 20s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 9
By the dimethyl silicone polymer of 50g, (molecular weight is 3 × 10
5, decentralization Mw/Mn=2.5), 48g diameter is silver powder, the zinc stearate of 1g, 5 '-two tertiary phenyl of 0.5g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1200pa, pressing 12s can obtain the solar panel assembling convergent belt.
The 20s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 10
By the polyethylene of 50g, (molecular weight is 1 × 10
5, decentralization Mw/Mn=2.5), 48g diameter is silver powder, the zinc stearate of 1g, 5 '-two tertiary phenyl of 0.5g of 50nm) the polyether polyester modified organic silicon oxygen alkane mechanical blending of-5-chlorination BTA and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1200pa, pressing 120s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 11
By the polyvinyl chloride of 50g, (molecular weight is 1.2 × 10
5decentralization Mw/Mn=2.5), 48g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 1%, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1200pa, pressing 12s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 12
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 45g diameter is the silver powder of 10nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 13
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5decentralization Mw/Mn=2.5), 45g diameter be 20 μm silver powder, the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g polyether polyester modified organic silicon oxygen alkane mechanical blending form the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 1000pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 14
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 45g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 15
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5), 45g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 10000pa, pressing 5s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 16
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 1.5 × 10
5decentralization Mw/Mn=2.5), 48g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 1g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and PVB encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 17
By the poly hydroxy ethyl acrylate of 50g, (molecular weight is 3 × 10
6decentralization Mw/Mn=25), 48g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 1g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 5s that the solar panel of assembling convergent belt and PO encapsulated layer exerted pressure under 2000pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 18
By the polyvinyl chloride of 50g, (molecular weight is 1.0 × 10
5, decentralization Mw/Mn=2), 45g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and PVB encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 19
Be 3 × 10 by the EVA(molecular weight of 50g
5decentralization Mw/Mn=2.5), 48g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 1g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 0.5g and 0.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and PVB encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 20
By the polyvinyl chloride of 50g, (molecular weight is 1.2 × 10
5, decentralization Mw/Mn=1.8), 45g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the zinc stearate of 3g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1g and 1g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and PVB encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 21
By the poly hydroxy ethyl acrylate of 18g, (molecular weight is 1.5 × 10
5decentralization Mw/Mn=2.5), 75g diameter is the silver powder of 50nm, the polyether polyester modified organic silicon oxygen alkane mechanical blending of the barium stearate of 4g, (2,5 '-two tertiary the phenyl)-5-chlorination BTA of 1.5g and 1.5g forms the pressure sensitive conductive adhesive tape that thickness is 25 μm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and PVB encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Embodiment 22
By the poly hydroxy ethyl acrylate of 29g, (molecular weight is 1.5 × 10
5, decentralization Mw/Mn=2.5) and 1g diameter be that to form thickness be the pressure sensitive conductive adhesive tape of 25 μm for the silver powder mechanical blending of 50nm.
Above-mentioned pressure sensitive conductive adhesive tape is aimed at dereliction coral monocrystalline silicon battery (156mm × 156mm) presumptive area, tin-coated copper strip (thickness=0.2mm that contact-making surface greasy dirt has been cleaned, width=2mm) aim at pressure sensitive conductive adhesive tape, utilize buffering pressure head (indenter area is 10mm × 150mm) to treating that nip applies the pressure of 500pa, pressing 20s can obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
Comparative example 1
After the main grid position of solar panel printing conductive silver paste also solidification, convergent belt is placed in above main grid, gives the pressure of 50pa, be warming up to 320 DEG C, keep 3s, obtain the solar panel assembling convergent belt.
The 10s that the solar panel of assembling convergent belt and EVA encapsulated layer exerted pressure under 1500pa encapsulates; Further itself and calendering toughened glass and backboard are encapsulated, obtain solar module.
The measurement of the solar panel of the assembling convergent belt prepared by embodiment 1 to 22 and comparative example 1 is tested.
Method of testing:
Contact resistance: in the solar panel of the assembling convergent belt prepared by embodiment 1 to 22 and comparative example 1, utilizes the contact resistance of four probe method convergent belt and solar panel to measure;
Cohesive force: in the solar panel of the assembling convergent belt prepared by embodiment 1 to 22 and comparative example 1, utilizes tensiometer to measure with 100mm/min speed 180 ° of direction cohesive forces to convergent belt and solar panel;
First power loss: DH1000 sign is carried out to the solar module prepared by embodiment 1 to 22 and comparative example 1, tests its first power loss;
Second power loss: after carrying out DH1000 sign to the solar module prepared by embodiment 1 to 22 and comparative example 1, is placed on outdoor 3 months, then tests its second power loss;
3rd power loss: the solar module prepared by embodiment 1 to 22 and comparative example 1 is placed in outdoor 3 months, then tests its 3rd power loss.
Test result is as shown in Table 1:
Table one:
As can be seen from above data, in the solar module adopting pressure sensitive conductive adhesive tape provided by the present invention to prepare, cohesive force between convergent belt and solar panel is larger than the cohesive force in comparative example between convergent belt and solar panel, and contact resistance does not improve too much.
Specifically, adopt the encapsulated layer matched with pressure sensitive conductive adhesive tape provided by the present invention, solar panel and convergent belt are assembled.The solar module formed, its first power loss, the second power loss and the 3rd power loss are all than little.Show that it has more excellent photoelectric conversion capacity, can use for a long time.
Embodiment 23
Prepare solar panel and solar module according to the method in embodiment 2, difference is, convergent belt is that surface is coated with tin lead layer, tin plumbous silver layer, aluminium lamination or silver layer copper strips.
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
Embodiment 24
Prepare solar panel and solar module according to the method in embodiment 3, difference is, the resin base material in pressure sensitive conductive adhesive tape is the polymer with following structure:
Wherein,
(1) m is 20, n is 2000; R1 is hydrogen atom, R2 to be carbon number be 20 alkyl; 2000 A ' are separately selected from the monomeric unit of methyl-acrylic acid and Methacrylamide;
(2) m is 2000, n is 20; R1 is methyl, R2 to be carbon number be 1 alkyl; 20 A ' are independently selected from the monomeric unit of methyl-acrylic acid, Methacrylamide and itaconic acid;
(3) m is 1000, n is 1; R1 is hydrogen atom, R2 to be carbon number be 10 alkyl; The monomeric unit that A ' is acrylonitrile;
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
Embodiment 25
Solar panel and solar module is prepared according to the method in embodiment 4, difference is, conductive filler is one or more in nickel powder, bronze, silver-plated nickel powder, gold-plated nickel powder, silver-plated copper powder, gold-plated copper powder, nickel-plated copper powder, nickel plating carbon black, silver-plated carbon black, gold-plated carbon black, nickel plated aluminum powder, silvered aluminum powder and gold-plated aluminium powder.
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
Embodiment 26
Prepare solar panel and solar module according to the method in embodiment 5, difference is, solar panel is polycrystal silicon cell or heterojunction crystal silicon cell.
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
Embodiment 27
Prepare solar panel and solar module according to the method in embodiment 6, difference is, the resin base material in pressure sensitive conductive adhesive tape is the polymer with following structure:
Wherein,
(1) k is 30; B ' in 30 construction units for carbon number be 2 × 10
5the monomeric unit of alkane, C ' is separately selected from naphthyl isocyanate and the monomeric unit to phenyl;
(2) k is 1500; B ' in 1500 construction units for carbon number be 3 × 10
3the monomeric unit of alkane, C ' is separately selected from the monomeric unit of aminomethyl phenyl vulcabond, methyl diphenyl isocyanate and IPDI;
(3) k is 500; B ' in 500 construction units for carbon number be 2 × 10
4the monomeric unit of alkane, C ' is separately selected from the monomeric unit of Isosorbide-5-Nitrae cyclohexyl isocyanates and hexamethylene diisocyanate;
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
Embodiment 28
Prepare solar panel and solar module according to the method in embodiment 6, difference is, the resin base material in pressure sensitive conductive adhesive tape is the polymer with following structure:
Wherein,
(1) g is 1000; R3, R4, R5 and R6 are the alkyl that carbon number is 1;
(2) g is 30; R3 and R4 is hydrogen, R5 to be carbon number be 8 alkyl, R6 to be carbon number be 8 alkoxyl;
(3) g is 1000; R3 is hydrogen, and R4 is hydroxyl, R5 to be carbon number be 8 alkyl, R6 to be carbon number be 8 alkoxyl;
(4) g is 500; R3 is hydrogen, and R4 is hydroxyl, R5 to be phenyl ring number the be aryl radical of 1, R6 to be silicon atom number the be siloxy of 8;
(5) g is 500; R3 is hydrogen, and R4 is hydroxyl, R5 to be phenyl ring number the be aryl radical of 8, R6 to be silicon atom number the be siloxy of 1;
After tested, the contact resistance≤5.5m Ω of convergent belt and solar panel in such scheme, bonding force is >=1.5N; First power loss≤2%; Second power loss≤3%; 3rd power loss≤2%.
As can be seen from above data, solar panel assembles in the process of convergent belt, adopt pressure sensitive conductive adhesive tape provided by the present invention, without the need to conductive silver paste and conductive silver glue, only need give certain pressure and just can realize connection between convergent belt and solar panel and conducting, effectively save production cost, reduced energy consumption.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a solar module, is characterized in that, comprising:
Solar panel;
Convergent belt, is arranged on described solar panel;
Encapsulated layer, is arranged on the side of described convergent belt away from described solar panel;
Described solar panel is connected by pressure sensitive conductive adhesive tape with described convergent belt, and containing resin base material in described pressure sensitive conductive adhesive tape, the material of described encapsulated layer is to the material of described resin base material without swelling action;
Described resin base material is 1) there is the polyacrylics, 2 of structure shown in formula I) there is the polyurethane based resin, 3 of formula II structure) there is the silicone based resin, 4 of formula III structure) polyethylene, 5) EVA and 6) one or more in Corvic
Wherein, the structure of formula I, formula II and formula III is as follows:
In described formula I, m is 20 to 2000, n is 1 to 2000; R1 is hydrogen atom or methyl, R2 to be carbon number be 1 ~ 20 alkyl, n A ' unit is separately selected from the group be made up of the monomeric unit of methyl-acrylic acid, methyl-acrylic acid hydroxyl methyl esters, methyl-acrylic acid hydroxyl ethyl ester, itaconic acid, acrylamide, Methacrylamide, N hydroxymethyl acrylamide, maleic anhydride, acrylonitrile, styrene, diamino ethyl methacrylic acid and glycidyl acrylate;
In described formula II, k is 30 to 1500; B ' in k construction unit is separately for carbon number is 3 × 10
3~ 2 × 10
5the monomeric unit of alkane, C ' is separately selected from by aminomethyl phenyl vulcabond, methyl diphenyl isocyanate, IPDI, hexamethylene diisocyanate, methane bicyclohexane based isocyanate, naphthyl isocyanate, the group that forms the monomeric unit of phenyl, Isosorbide-5-Nitrae cyclohexyl isocyanates and dimethylenebenzene isocyanates;
In described formula III, g is 30 to 1000; The aryl radical that the alkoxyl that the alkyl that it is 1 ~ 8 that R3, R4, R5 and R6 are separately selected from by hydrogen, hydroxyl, carbon number, carbon number are 1 ~ 8, phenyl ring number are 1 ~ 8 and the group that the siloxy that silicon atom number is 1 ~ 8 forms.
2. assembly according to claim 1, is characterized in that, described encapsulated layer is EVA film, PVB film, PO film or Inomer film.
3. assembly according to claim 1, is characterized in that, in described solar module,
Resin base material described in described pressure sensitive conductive adhesive tape for described in there is the polyacrylics of structure shown in formula I, described encapsulated layer is EVA film; Or
Resin base material described in described pressure sensitive conductive adhesive tape for described in have formula II structure polyurethane based resin or described in there is the silicone based resin of formula III structure, described encapsulated layer is EVA film, PVB film, PO film or Inomer film; Or
Described in described pressure sensitive conductive adhesive tape, resin base material comprises one or more in polyethylene, EVA and Corvic, and described encapsulated layer is EVA film, PO film or Inomer film.
4. assembly according to any one of claim 1 to 3, it is characterized in that, described pressure sensitive conductive adhesive tape weight percentage comprises: the resin base material of 29 ~ 80%, the conductive filler of 20 ~ 71%, and wherein, the weight average molecular weight of described resin base material is 5 × 10
4~ 3 × 10
6, decentralization is 2 ~ 25.
5. assembly according to claim 4, it is characterized in that, described conductive filler comprise in silver powder, nickel powder, bronze, silver-plated nickel powder, gold-plated nickel powder, silver-plated copper powder, gold-plated copper powder, nickel-plated copper powder, nickel plating carbon black, silver-plated carbon black, gold-plated carbon black, nickel plated aluminum powder, silvered aluminum powder and gold-plated aluminium powder one or more.
6. assembly according to claim 5, is characterized in that, the particle diameter of described conductive filler is 10nm ~ 20 μm.
7. assembly according to claim 4, is characterized in that, described pressure sensitive conductive adhesive tape weight percentage also comprises the auxiliary agent of 0.5 ~ 5%, described auxiliary agent comprise in age resister, anti ultraviolet agent and levelling agent one or more.
8. assembly according to claim 1, is characterized in that, in described solar module,
Described solar panel is single-crystalline-silicon solar-cell panel, polysilicon solar cell plate or heterojunction crystal silicon cell plate;
Described convergent belt be surface be coated with in the copper strips of tin layers, tin lead layer, tin plumbous silver layer, aluminium lamination or silver layer one or more.
9. prepare a method for the solar module according to any one of claim 1 to 8, it is characterized in that, comprise the steps:
Pressure sensitive conductive adhesive tape is laid on described solar panel, described convergent belt is laid on described pressure sensitive conductive adhesive tape, formed and treat nip;
Treat that nip is exerted pressure to described, to be assemblied on solar panel by described convergent belt;
According to the kind of resin base material contained in described pressure sensitive conductive adhesive tape, to select described resin matrix without the material of swelling action as encapsulated layer;
Encapsulated layer is laid on described convergent belt away from described solar panel side, described encapsulated layer is exerted pressure towards described solar panel, so that described convergent belt and described solar panel are encapsulated.
10. method according to claim 9, is characterized in that, is treating in the step that nip is exerted pressure: treat that nip entirety is exerted pressure to described, to be assemblied on solar panel by described convergent belt to described.
11. methods according to claim 10, is characterized in that, pressure of exerting pressure is 500 ~ 10000pa, and the time of exerting pressure is 5 ~ 120s, treats the area of nip described in area of exerting pressure is greater than.
12. methods according to any one of claim 9 to 11, is characterized in that, in the step of exerting pressure towards described solar panel to described encapsulated layer, pressure of exerting pressure is 300 ~ 2000pa, and the time of exerting pressure is 5 ~ 60s.
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| CN104575682A (en) * | 2015-01-08 | 2015-04-29 | 安徽凤阳德诚科技有限公司 | Efficient conducting silver paste |
| CN106960891A (en) * | 2017-03-09 | 2017-07-18 | 杭州福斯特应用材料股份有限公司 | A kind of photovoltaic transparent composite membrane and preparation method and application |
| CN107298822A (en) * | 2017-05-18 | 2017-10-27 | 江苏东昇光伏科技有限公司 | A kind of solar cell backboard composite and preparation method thereof |
| CN107768473A (en) * | 2017-09-27 | 2018-03-06 | 江阴艾能赛瑞能源科技有限公司 | Solar energy laminated batteries and its welding method |
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