CN103849064A - Encapsulation composition for a solar cell and preparing method of encapsulation sheet - Google Patents
Encapsulation composition for a solar cell and preparing method of encapsulation sheet Download PDFInfo
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- CN103849064A CN103849064A CN201310146073.7A CN201310146073A CN103849064A CN 103849064 A CN103849064 A CN 103849064A CN 201310146073 A CN201310146073 A CN 201310146073A CN 103849064 A CN103849064 A CN 103849064A
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- weight part
- metal ion
- encapsulant compositions
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- solar
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- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 238000005538 encapsulation Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 39
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 25
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 239000008393 encapsulating agent Substances 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- -1 silane compound Chemical class 0.000 claims description 13
- 238000004132 cross linking Methods 0.000 claims description 10
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 9
- 239000002633 crown compound Substances 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 7
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910001424 calcium ion Inorganic materials 0.000 claims description 7
- 229910001415 sodium ion Inorganic materials 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 150000003983 crown ethers Chemical class 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 239000011669 selenium Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 35
- 150000002978 peroxides Chemical class 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 25
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 11
- 230000007423 decrease Effects 0.000 description 7
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 3
- 238000005502 peroxidation Methods 0.000 description 3
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert-Butyl hydroperoxide Substances CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- IMYCVFRTNVMHAD-UHFFFAOYSA-N 1,1-bis(2-methylbutan-2-ylperoxy)cyclohexane Chemical compound CCC(C)(C)OOC1(OOC(C)(C)CC)CCCCC1 IMYCVFRTNVMHAD-UHFFFAOYSA-N 0.000 description 1
- WMRUCXJCYZNJEI-UHFFFAOYSA-N 2,2-bis(tert-butylperoxy)butane butane Chemical compound C(C)(C)(C)OOC(C)(CC)OOC(C)(C)C.CCCC WMRUCXJCYZNJEI-UHFFFAOYSA-N 0.000 description 1
- HQLWSPAOVXYSSG-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C.CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C HQLWSPAOVXYSSG-UHFFFAOYSA-N 0.000 description 1
- JMWGZSWSTCGVLX-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O.CCC(CO)(CO)CO JMWGZSWSTCGVLX-UHFFFAOYSA-N 0.000 description 1
- LXUJDFITFWBMQT-UHFFFAOYSA-N 2-ethylhexyl hydrogen carbonate Chemical compound CCCCC(CC)COC(O)=O LXUJDFITFWBMQT-UHFFFAOYSA-N 0.000 description 1
- NFEGKOIJMCGIKN-UHFFFAOYSA-N 3-(2-methylbutan-2-ylperoxymethyl)heptane Chemical group CCCCC(CC)COOC(C)(C)CC NFEGKOIJMCGIKN-UHFFFAOYSA-N 0.000 description 1
- YZEAIGVCBWNDCC-UHFFFAOYSA-N C(C)(C)(C)CC(=O)OO.C(C)(=O)OCCCC Chemical compound C(C)(C)(C)CC(=O)OO.C(C)(=O)OCCCC YZEAIGVCBWNDCC-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- DLSMLZRPNPCXGY-UHFFFAOYSA-N tert-butylperoxy 2-ethylhexyl carbonate Chemical compound CCCCC(CC)COC(=O)OOOC(C)(C)C DLSMLZRPNPCXGY-UHFFFAOYSA-N 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/159—Heterocyclic compounds having oxygen in the ring having more than two oxygen atoms in the ring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/48—Selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
- C08L2203/162—Applications used for films sealable films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
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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
-
- 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 relates to an encapsulation composition for a solar cell and a preparing method of an encapsulation sheet. The encapsulation composition can prevent the performance reduction, of a module, being caused by electric leakage, the encapsulation composition is provided with good insulating property, and can make the solar cell keep stable for a long time. The encapsulation composition comprises an ethylene-vinyl acetate copolymer resin as a main material, on the basis of the weight of the resin, the encapsulation composition also comprises 0.1-5 parts by mass of a peroxide added as a key additive, and 0.01-5 parts by mass of a metal ion catching agent.
Description
Technical field
The present invention relates to the outstanding packaged material used for solar batteries of insulating property and utilize its thinner package piece making method, relate in particular to the metal ion capturing agent that a kind of ethylene-vinyl acetate copolymer to using as packaged material adds ad hoc structure, the module performance that suppresses to bring due to electric leakage declines, there are outstanding insulating property, can allow solar cell stable for extended periods of time encapsulant compositions used for solar batteries and utilize its thinner package piece making method.
Background technology
Solar cell is as green energy resource, free from environmental pollution, can overcome the exhausted crisis of the energy, and nuisanceless, noiselessness, can infinitely obtain, and is subject to recently people's extensive welcome.The solar module (module) of solar cell is to utilize photovoltaic effect, luminous energy is transformed into the semiconductor element of electric energy, is the core parts of solar cell.Conventionally after stacking with the order of glass substrate, encapsulation thin slice (Encapsulation sheet), solar battery cell (cell), encapsulation thin slice and backboard (back sheet), heating and pressurizing, encapsulation thin slice is carried out to crosslinking curing, make various piece bonding integral, manufacture solar module.
While manufacturing this solar module, most popular packaged material is ethylene-vinyl acetate copolymer, and the common proportion of vinyl acetate is 20 to 40wt%.Because solar cell is at outdoor life-time service, therefore for the packaged material of module along with time lapse, under the impact of ultraviolet ray, heat, moisture etc., structure changes, and produces the problems such as variable color, causes the decrease in efficiency of module.In order to prevent this decrease in efficiency, conventionally in the time of moulding packaged material, add UV light absorber, oxidation inhibitor or thermo-stabilizer.Even if but add these additives, the stability of packaged material is still not high, and decrease in efficiency still has important topic to be solved.
Conventionally solar cell is in order to obtain high-voltage, by module array, produces the system voltage of the most about 1000V.Between each module due to solar cell, there is voltage difference, likely leak electricity.Due to aging, the metal ion that is contained in glass is free out, moves to cell surface accumulation, causes the electrical property of unit to decline.This phenomenon is to be commonly referred to generating efficiency decline phenomenon (potential induced degradation; PID) one of reason, arranges after solar battery cell through the normal problem occurring.While being particularly exposed to the environment such as rainwater dew, more easily leak electricity, allow module performance degradation.
, in the authentication test of solar module, do not carry out the accurate evaluation of generating efficiency decline phenomenon now.And in order to address this problem, industry generally believes need to develop better unit, module array system and the better starting material of insulating property, but suitable solution is not also proposed so far.
Summary of the invention
The problem of invention
The present invention is the invention proposing in order to address the above problem, its object is to provide a kind of solar cell package material compositions, in the EVA as solar cell package materials'use in prior art, interpolation can powerfully catch sodium ion (Na
+), calcium ion (Ca
+) metal trapping agent, fundamentally prevent that these metal ions are free and move to the phenomenon of cell surface accumulation, anti-stop element loss electric energy by packaged material from glass.
Another object of the present invention is to provide a kind of method of carrying out manufacturing and encapsulation thin slice by thering is the encapsulant compositions used for solar batteries of above-mentioned excellent characteristic.
Except the object of above-mentioned clearly statement, object of the present invention also comprises other objects that can derive from technology of the present invention, with industry ABC.
In order to achieve the above object, the present inventor based on as judge, selected the crown compound of ad hoc structure as metal ion scavenger, develop the solar cell using can be under hot and humid condition steady in a long-term with this, completed the present invention.Here, the consistency of the crown ether of above-mentioned ad hoc structure and EVA multipolymer packaged material is outstanding, does not restrict in the use.Above-mentioned judgement comprises for the low iron toughened glass (tempered glass) of solar cell and conventionally contains and be oxidized disodium (Na
2o) 10 to 15%, containing calcium oxide (CaO) 5 to 10%, life-time service or under hot and humid condition metal ion free out, likely move to the surface of unit by packaged material; Due to the some potential difference of module array, between unit and framework, produce electric leakage, allow the phenomenon that above-mentioned metal ion moves accelerate, cause the decrease in efficiency of battery, be therefore necessary fundamentally to prevent that metal ion from moving from glass; This metal ion can promote the hydrolytic action of packaged material material ethylene-vinyl acetate molecule, reduce the weather resistance of packaged material, reduce the permanent stability of module, therefore the material of brute force seizure metal ion, Use Limitation fruit can be better together with packaged material.
Embodiment
In order to achieve the above object, the invention provides a kind of encapsulant compositions used for solar batteries, it is characterized in that: comprise ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
In the present invention, described metal ion capturing agent has 15-shown in following structural formula hat-5,18-be preced with-6 skeletons, and is additional on this skeleton or fusion has the crown ether of alkyl or aryl.
Here, A selects from O, S, Se, NH.
In the present invention, described metal ion capturing agent is in order effectively to catch the sodium ion (Na separating from glass
+) and calcium ion (Ca
2 +), to sodium ion (Na
+) by 15-hat-5 compounds, to calcium ion (Ca
2 +) worked separately or together by 18-hat-6 compounds.
In the present invention, also comprise and be no more than the crosslinking coagent of 2 weight parts and silane compound, UV light absorber and the photostabilizer of 0.01 to 3 weight part.
In the present invention, described crown compound is the compound with 15-hat-5,18-hat-6 skeletons, and for chelated metal ions, its element comprising is oxygen, nitrogen, selenium or sulphur.
The invention provides a kind of manufacture method of solar cell package thin slice, it is characterized in that: encapsulant compositions is shaped to laminar with calendering or t die head rolling method, wherein this encapsulant compositions comprises ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
The invention provides a kind of solar module, it is characterized in that: this module forms by stacking successively glass substrate, encapsulation thin slice, solar battery cell and the pressurization of backboard post-heating; Described encapsulation thin slice is by being shaped to laminar manufacture by encapsulant compositions with calendering or t die head rolling method, wherein this encapsulant compositions comprises ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
Invention effect
The insulating property of encapsulant compositions used for solar batteries of the present invention are outstanding; owing to having added superoxide and crown ether; produce selective reaction with the metal ion dissociating out from glass; prevent that metal ion is accumulated in cell surface; suppress the hydrolytic action of packaged material molecule; cause under the condition of electric leakage at hot and humid environment and potential difference; also effectively protected location and packaged material; while preventing solar cell life-time service, there is degradation; and stable maintenance packaged material structure and function, can solve the problem of prior art.
Embodiment
At this, most preferred embodiment of the present invention is elaborated.
The outstanding encapsulant compositions used for solar batteries of insulating property of most preferred embodiment of the present invention comprises suitable superoxide and the metal ion capturing agent crown compound that can carry out by ethanoyl and ethylene-vinyl acetate resin crosslinking reaction, also has crosslinking coagent, silane coupling agent, UV light absorber, photostabilizer etc.
Conventionally, from module glass used for solar batteries, free (dissociation) metal ion out has sodium ion (Na
+) and calcium ion (Ca
2 +).This is due to the cause of manufacturing the calcium oxide that uses 10 to 15% oxidation disodium and 5 to 10% when glass used for solar batteries.Owing to being in electric field for a long time, and irradiation ultraviolet radiation or be exposed under hot and humid environment repeatedly, the metal ion in glass is free out.Under the potential difference effect of solar cell, free metal ion out continues to move to inside modules by electric current.This metal ion is deposited in cell surface, reduces the electrical property of unit by electric leakage, and promotes the hydrolytic action of packaged material molecule.Encapsulating material layer plays ligation between glass and unit.Can say, in encapsulating material layer, the method for isolating metal ion is best.For powerful this metal ion species that catches in the ground that is allowed a choice, can use many kinds of substance, such as having polyamino compound, poly-organic acid compound, poly-sulfhydryl compound, polyether compound etc.These compounds have alkyl or aryl structure, exist with chain form or annular form.But polyamino compound, poly-organic acid compound, poly-sulfhydryl compound can promote the hydrolytic action of packaged material while use together with packaged material, reduce stability, or become the reason of flavescence or peculiar smell, are not suitable for solar cell.In addition, as metal ion capturing agent, use the material outstanding with the consistency of packaged material ethylene-vinyl acetate better.Therefore, the present inventor by constantly research, finds that cyclic crown ether compound can not exert an influence to the stability of solar cell constituent material, and shows the consistency outstanding with ethylene-vinyl acetate, has very high metal ion and catch effect.
In order to select suitable metal ion capturing agent, first consider the size of metal ion, select crown ether kind to be advisable.Catch sodium ion (Na
+) time, use that to have the compound of 15-hat-5 skeletons most suitable, catch calcium ion (Ca
2 +) time, use that to have the compound of 18-hat-6 skeletons most suitable.Structural formula below represents the representative crown compound using in the present invention, but the invention is not restricted to this.Except can using material below, can also use and there are 15-hat-5 or 18-hat-6 skeletons, and on skeleton, be attached with or merge the material that has alkyl or aryl.
Here, A is O, S, Se or NH.
In most preferred embodiment of the present invention, the crown compound using as described metal ion capturing agent, taking ethylene-vinyl acetate 100 weight parts as benchmark, is 0.01 to 5 weight part, preferably 0.1 to 2 weight part.If usage quantity is less than 0.01 weight part, cannot show sufficient seizure effect, if more than 5 weight parts, the bonding force of packaged material and economy are not good.
In another most preferred embodiment of the present invention, be from 2 for encapsulating the organo-peroxide of thin slice, 2-bis-(tert-butyl hydroperoxide) butane (2, 2-di (t-butyl peroxy) butane), tert-butyl hydroperoxide sec.-propyl (t-butyl-peroxy isopropyl), 1, 1-bis-(t-amyl peroxy) hexanaphthene (1, 1-di-(t-amyl peroxy) cyclohexane), tert-butyl hydroperoxide carbonic acid 2-ethylhexyl (t-butyl peroxy-2-ethylhexyl carbonate), tert-pentyl list peroxidation carbonic acid (2-ethyl hexyl) ester (t-amyl (2-ethylhexyl) mono peroxy carbonate), peroxide acetic acid butyl ester (t-butyl peroxy acetate), peroxidation 2 ethyl hexanoic acid tert-pentyl ester (t-amyl peroxy-2-ethylhexanoate), 2, 5-dimethyl-2, 5-bis-(t-butyl peroxy) hexane (2, 5-dimethyl-2, 5-bis (t-butyl peroxy) hexane), one or both compounds of selecting in the peroxidation 2 ethyl hexanoic acid tert-butyl ester (t-butyl peroxy-2-ethylhexanoate).
Taking ethylene-vinyl acetate 100 weight parts as benchmark, the usage quantity of described superoxide is 0.1 to 5 weight part.
In another embodiment of the present invention, have triallyl isocyanurate (triallyl isocyanurate), isocyanic acid triallyl (triallyl isocyanate), TriMethylolPropane(TMP)-trimethacrylate (trimethylolpropan-tri-methacrylate) etc. for the crosslinking coagent that encapsulates thin slice, consumption is that 2 weight parts are advisable with interior.
In the present invention, the silane coupling agent using as above-mentioned bonding auxiliary agent is for having the unsaturated groups such as vinyl, acryloxy, methacryloxy, the compound of the hydrolysable group such as amido, epoxy group(ing) and alkoxyl group.As silane coupling agent, specifically there are vinyl triethoxyl siloxanes, vinyl trimethoxy siloxanes, γ-methacryloxypropyl triethoxy silica alkane etc., consumption is that 0.01 to 3 weight part is advisable.
In another most preferred embodiment of the present invention, encapsulation thin slice can add other various additives on demand.Addible various additive comprises photostabilizer, UV light absorber, oxidation inhibitor etc.
In another embodiment of the present invention, the additive such as organo-peroxide, crosslinking coagent, silane coupling agent, oxidation inhibitor, UV light absorber and photostabilizer that metal ion capturing agent can use with ethylene-vinyl acetate and as linking agent is together after proportioning, be shaped to thin slice in the mode of rolling, or come into operation separately in the time of molding sheet.
In another embodiment of the present invention, encapsulation thin slice used for solar batteries is by utilizing encapsulant compositions of the present invention, rolls or calendering operation is processed into that 200 to 1000mm thickness manufactures with t die head.
In sum, encapsulant compositions used for solar batteries of the present invention, by selecting suitable crown compound, catches from the free metal ion of glass, not only can prevent that it is deposited in cell surface, can also prevent that the hydrolysis of packaged material from decomposing.The thin slice of manufacturing by this encapsulant compositions and utilize its solar module can maintaining a long-term stability property.
Below, embodiments of the invention and comparative example are specifically described.But scope of the present invention is not limited to these embodiment.
Embodiment 1
With ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) (Melt Flow Rate) 15g/10 minute) 100 weight parts are benchmark, proportioning 2, 5-dimethyl-2, (Aldrich manufactures 5-bis-(t-butyl peroxy) hexane, Luperox101) 1.0 weight parts, (Japan changes into company and manufactures crosslinking coagent---three propylene triallyl isocyanurates, TAIC) 0.8 weight part, UV light absorber---2-hydroxyl 4-octyloxy benzophenone (sumitomo chemical company manufacture, sumisorb130) 0.1 weight part and 15-hat-5 (manufacture of Aldrich company) 1 weight part, 18-is preced with-6 (manufacture of Aldrich company) 1 weight part, by two forcing machines of diameter 104mm, roll with 110 DEG C of following temperature, manufacture the thick thin slice of 500 μ m.
Embodiment 2
With ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) 15g/10 minute) 100 weight parts are benchmark, proportioning 2, 5-dimethyl-2, (Aldrich company manufactures 5-bis-(t-butyl peroxy) hexane, Luperox101) 1.0 weight parts, (Japan changes into company and manufactures crosslinking coagent---three propylene triallyl isocyanurates, TAIC) 0.8 weight part, UV light absorber---2-hydroxyl 4-octyloxy benzophenone (sumitomo chemical company, sumisorb130) 0.1 weight part and 15-hat-5 (manufacture of Aldrich company) 1 weight part, by two forcing machines of diameter 104mm, roll with 110 DEG C of following temperature, manufacture the thick thin slice of 500 μ m.
Embodiment 3
With ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) 15g/10 minute) 100 weight parts are benchmark, proportioning 2, 5-dimethyl-2, (Aldrich company manufactures 5-bis-(t-butyl peroxy) hexane, Luperox101) 1.0 weight parts, (Japan changes into company and manufactures crosslinking coagent---triallyl isocyanurate, TAIC) 0.8 weight part, UV light absorber---2-hydroxyl 4-octyloxy benzophenone (sumitomo chemical company, sumisorb130) 0.1 weight part and 18-hat-6 (manufacture of Aldrich company) 1 weight part, by two forcing machines of diameter 104mm, roll with 110 DEG C of following temperature, manufacture the thick thin slice of 500 μ m.
Comparative example 1
Except not using crown compound, other proportionings are identical with embodiment 1, manufacture after ethylene-vinyl acetate encapsulation thin slice, manufactured solar module.
Experimental example 1
The encapsulation thin slice and the low iron toughened glass (3.2T, AGC company) that utilize the various embodiments described above and comparative example to manufacture, backboard, mc-Si unit, by vacuum press (expressive machine), carry out hot pressing in 20 minutes with 150 DEG C, manufacture the module of Unit 54.
In 65 DEG C, under 85% relative humidity condition, to solar module one deck water of being stained with on glass, after connection-1000V voltage for some time, detect electric output and change.Its result is as shown in table 1.
[table 1]
| Time (h) | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| 0 | 208 | 208 | 208 | 208 |
| 50 | 204 | 202 | 200 | 170 |
| 100 | 200 | 195 | 190 | 110 |
Experimental example 2
By the solar module of testing in experimental example 1, under 85 DEG C, 85% humidity condition, place for a long time, by light splitting color meter (Spectro Color meter, SE2000, Japanese electricity Se Industrial Co., Ltd (Nippon Denshoku)) detect the variable color situation of packaged material.Result is as shown in table 2.
[table 2]
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | |
| DYI(2000h) | 0.2 | 0.2 | 0.4 | 15 |
Result by above-mentioned each experimental example is known, use crown ether of the present invention) the insulativity packaged material of compound can fundamentally isolate the movement from the metal ion of glass, can not only prevent the problem of the solar module degradation being caused by leaky, can also allow the stability of packaged material greatly improve.
Claims (7)
1. an encapsulant compositions used for solar batteries, it is characterized in that: comprise ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
2. encapsulant compositions used for solar batteries according to claim 1, is characterized in that:
Described metal ion capturing agent has 15-shown in following structural formula hat-5,18-be preced with-6 skeletons, and is additional on this skeleton or fusion has the crown ether of alkyl or aryl,
Here, A selects from O, S, Se, NH.
3. encapsulant compositions used for solar batteries according to claim 1 and 2, is characterized in that:
Described metal ion capturing agent is in order effectively to catch sodium ion Na free from glass
+with calcium ion Ca
2 +, to sodium ion Na
+by 15-hat-5 compounds, to calcium ion Ca
2 +worked separately or together by 18-hat-6 compounds.
4. encapsulant compositions used for solar batteries according to claim 1, is characterized in that:
Also comprise and be no more than the crosslinking coagent of 2 weight parts and silane compound, UV light absorber and the photostabilizer of 0.01 to 3 weight part.
5. encapsulant compositions used for solar batteries according to claim 1 and 2, is characterized in that:
Described crown compound is the compound with 15-hat-5,18-hat-6 skeletons, and for chelated metal ions, its element comprising is oxygen, nitrogen, selenium or sulphur.
6. the manufacture method of a solar cell package thin slice, it is characterized in that: encapsulant compositions is shaped to laminar with calendering or t die head rolling method, wherein this encapsulant compositions comprises ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
7. a solar module, is characterized in that:
This module forms by stacking successively glass substrate, encapsulation thin slice, solar battery cell and the pressurization of backboard post-heating; Described encapsulation thin slice is by being shaped to laminar manufacture by encapsulant compositions with calendering or t die head rolling method, wherein this encapsulant compositions comprises ethylene-vinyl acetate copolymer resin as main raw, and taking the weight of this resin as benchmark, also comprise the superoxide of 0.1 to 5 weight part and the metal ion capturing agent of 0.01 to 5 weight part that add as core additive.
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|---|---|---|---|
| KR10-2012-0138899 | 2012-12-03 | ||
| KR1020120138899A KR20140072934A (en) | 2012-12-03 | 2012-12-03 | Encapsulation composition for a solarcell and preparing process fo the sheet using the same |
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| CN108778991A (en) * | 2016-04-05 | 2018-11-09 | 东亚合成株式会社 | Ion capturing agent used for solar batteries and encapsulant composition used for solar batteries and solar cell module containing it |
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| CN116496703A (en) * | 2023-04-25 | 2023-07-28 | 浙江祥隆科技有限公司 | EVA photovoltaic packaging adhesive film and preparation method thereof |
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| US10931229B2 (en) * | 2018-12-13 | 2021-02-23 | Industrial Technology Research Institute | Solar cell testing system and testing method thereof |
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Also Published As
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| CN103849064B (en) | 2018-05-11 |
| KR20140072934A (en) | 2014-06-16 |
| TW201422695A (en) | 2014-06-16 |
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