KR20110024593A - Resin composition for sealing solar cell and method for manufacture thereof - Google Patents
Resin composition for sealing solar cell and method for manufacture thereof Download PDFInfo
- Publication number
- KR20110024593A KR20110024593A KR1020090082658A KR20090082658A KR20110024593A KR 20110024593 A KR20110024593 A KR 20110024593A KR 1020090082658 A KR1020090082658 A KR 1020090082658A KR 20090082658 A KR20090082658 A KR 20090082658A KR 20110024593 A KR20110024593 A KR 20110024593A
- Authority
- KR
- South Korea
- Prior art keywords
- solar cell
- resin composition
- acrylate
- gel content
- curable resin
- Prior art date
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- 239000011342 resin composition Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 238000005538 encapsulation Methods 0.000 claims abstract description 16
- 239000003085 diluting agent Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 13
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 10
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- 239000008393 encapsulating agent Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 5
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 229920006295 polythiol Polymers 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229920003986 novolac Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims 1
- QCTJRYGLPAFRMS-UHFFFAOYSA-N prop-2-enoic acid;1,3,5-triazine-2,4,6-triamine Chemical compound OC(=O)C=C.NC1=NC(N)=NC(N)=N1 QCTJRYGLPAFRMS-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 210000004027 cell Anatomy 0.000 description 67
- 239000005038 ethylene vinyl acetate Substances 0.000 description 29
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 27
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 27
- 238000012360 testing method Methods 0.000 description 19
- 229920005862 polyol Polymers 0.000 description 18
- 150000003077 polyols Chemical class 0.000 description 18
- 238000002360 preparation method Methods 0.000 description 18
- 238000005259 measurement Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 11
- 239000000178 monomer Substances 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 239000000945 filler Substances 0.000 description 10
- -1 acrylic acrylates Chemical class 0.000 description 9
- 238000004132 cross linking Methods 0.000 description 9
- 229920002857 polybutadiene Polymers 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 150000002009 diols Chemical class 0.000 description 7
- 239000003999 initiator Substances 0.000 description 7
- 229920001451 polypropylene glycol Polymers 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000012948 isocyanate Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000001723 curing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920005906 polyester polyol Polymers 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 239000005062 Polybutadiene Substances 0.000 description 4
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 3
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 3
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 3
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 125000000687 hydroquinonyl group Chemical class C1(O)=C(C=C(O)C=C1)* 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- ZDHCZVWCTKTBRY-UHFFFAOYSA-N omega-Hydroxydodecanoic acid Natural products OCCCCCCCCCCCC(O)=O ZDHCZVWCTKTBRY-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- QLNZDMTUYPQUCX-UHFFFAOYSA-N (2,3-diphenoxyphenyl)-phenylmethanone Chemical class C=1C=CC(OC=2C=CC=CC=2)=C(OC=2C=CC=CC=2)C=1C(=O)C1=CC=CC=C1 QLNZDMTUYPQUCX-UHFFFAOYSA-N 0.000 description 1
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 description 1
- 229940043375 1,5-pentanediol Drugs 0.000 description 1
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 1
- VOBUAPTXJKMNCT-UHFFFAOYSA-N 1-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound CCCCCC(OC(=O)C=C)OC(=O)C=C VOBUAPTXJKMNCT-UHFFFAOYSA-N 0.000 description 1
- OYKPJMYWPYIXGG-UHFFFAOYSA-N 2,2-dimethylbutane;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(C)(C)C OYKPJMYWPYIXGG-UHFFFAOYSA-N 0.000 description 1
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 description 1
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- ACZGCWSMSTYWDQ-UHFFFAOYSA-N 3h-1-benzofuran-2-one Chemical class C1=CC=C2OC(=O)CC2=C1 ACZGCWSMSTYWDQ-UHFFFAOYSA-N 0.000 description 1
- NDWUBGAGUCISDV-UHFFFAOYSA-N 4-hydroxybutyl prop-2-enoate Chemical compound OCCCCOC(=O)C=C NDWUBGAGUCISDV-UHFFFAOYSA-N 0.000 description 1
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- OGBVRMYSNSKIEF-UHFFFAOYSA-N Benzylphosphonic acid Chemical class OP(O)(=O)CC1=CC=CC=C1 OGBVRMYSNSKIEF-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical class NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- YFESLUXJCTZZFA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1.OCC1CCC(CO)CC1 YFESLUXJCTZZFA-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
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- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 125000001118 alkylidene group Chemical group 0.000 description 1
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- 239000003963 antioxidant agent Substances 0.000 description 1
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- 150000008366 benzophenones Chemical class 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 1
- INDXRDWMTVLQID-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO.OCCCCO INDXRDWMTVLQID-UHFFFAOYSA-N 0.000 description 1
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- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
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- 238000002425 crystallisation Methods 0.000 description 1
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- 125000005266 diarylamine group Chemical group 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
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- 238000010790 dilution Methods 0.000 description 1
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- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
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- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 150000002690 malonic acid derivatives Chemical class 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
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- 150000001451 organic peroxides Chemical class 0.000 description 1
- YSPXNJODCGZWPD-UHFFFAOYSA-N pentane-1,5-diol Chemical compound OCCCCCO.OCCCCCO YSPXNJODCGZWPD-UHFFFAOYSA-N 0.000 description 1
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- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
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- 238000006303 photolysis reaction Methods 0.000 description 1
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- 229920001610 polycaprolactone Polymers 0.000 description 1
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- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical class C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
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- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical class Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 150000007964 xanthones Chemical class 0.000 description 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C08L75/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- 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
Abstract
The present invention relates to a resin composition for solar cell encapsulation, including an oligomer and a diluent, and a gel content of more than 80%, and a method for manufacturing the same, wherein the resin composition for solar cell encapsulation of the present invention exhibits excellent energy conversion efficiency.
Solar cell, bag, gel content
Description
The present invention relates to a resin composition for solar cell encapsulation and a method of manufacturing the same having a higher energy conversion efficiency than conventional ethylene vinyl acetate (EVA).
The solar cell module is manufactured by connecting several solar cells in series or in parallel to each other to generate voltage and current of appropriate size, and filling materials in a vacuum state to protect the solar cells from the external environment and to increase durability and installability. Or it is produced by laminating a surface material or the like.
The crystalline silicon solar cell module among various solar cell modules is manufactured by connecting a plurality of solar cells with thin conductor wires and compressing them in a vacuum state together with a filler, a glass substrate, and a back sheet. It is common to use EVA resins, but there are various problems.
In the case of EVA sheet, it is difficult to derive cross-linking conditions necessary for durability. As the crosslinking rate increases, the thermal strain rate decreases, the tensile strength increases, and other thermal properties are also improved. However, the thermal strain rate is high because EVA is thermally unstable. In addition, if EVA crosslinking rate is high, crystallization and elongation decrease, and if crosslinking degree is too high, the module is more likely to be damaged by external impact when the surface temperature of the module reaches the maximum, and when the temperature of the module reaches the lowest, Symptoms may appear. Therefore, in the case of EVA sheet, an appropriate crosslinking rate is essential for durability.
On the other hand, in the solar cell module is generally required to maintain a strong adhesion between the encapsulant and the light incident surface and the back of the solar cell in order to improve weather resistance and durability, in the case of an encapsulant including an EVA sheet, the light receiving of the solar cell module In the state, the temperature of the incident surface is higher than the temperature of the rear surface, and the encapsulant expands on the light incident surface side. As such, the balance between the light incidence side and the back side is broken in the solar light receiving state of the solar cell, so that the deformation of the solar cell occurs. As the thickness becomes thinner, the thickness of the solar cell becomes larger. It was difficult. In addition, the EVA sheet is generally weathered by the minute crack phenomenon of the back back sheet, which may eventually cause corrosion of the solar cell surface electrode, and deterioration of a specific cell when the surface electrode exposed to moisture is corroded. This is accelerated and electrical performance is reduced. The EVA sheet may be discolored by photolysis of the peroxide when exposed to ultraviolet rays for a long time to reduce the light transmittance of the sunlight reaching the solar cell, and also has a problem that the electrical performance is reduced by reducing the light transmittance.
As described above, the EVA resin has various problems, and in order to increase the solar cell efficiency, most of the studies are conducted on a method of increasing the light transmittance of EVA.
However, as a result of the research of the present inventors, the correlation between the increase in the energy conversion efficiency and the increase in the light transmittance of the EVA sheet was found to be insignificant, and it was found that the energy conversion efficiency was directly changed by the gel content of EVA. . Increasing the gel content of EVA in order to increase energy conversion efficiency can be easily delamination due to the weak adhesive force, and in actual experiments, solar cell efficiency when manufacturing a solar cell module by encapsulation with EVA sheet filler The change in battery cell efficiency was reduced by 15%, indicating a performance of only 85%.
Therefore, the present invention essentially eliminates the problems of the EVA sheet, and in order to improve the energy conversion efficiency of the solar cell, a resin composition for encapsulating a solar cell and a preparation of a new type to increase the gel content directly affecting the energy conversion efficiency The method was developed.
The present invention relates to a new solar cell encapsulating resin composition and a method of manufacturing the same having better energy conversion efficiency than conventional ethylene vinyl acetate (EVA).
By synthesizing oligomers that can replace the existing EVA sheet and increase the gel content, it is possible to fundamentally solve the problems of the EVA sheet and maximize the energy conversion efficiency of the solar cell.
The present invention is an oligomer; And a diluent, wherein the gel content measured by the following general formula (1) is greater than 80%.
[Formula 1]
Gel content (%) = m / m o × 100
In
The gel content of the resin composition for solar cell encapsulation of the present invention is more than 80%, preferably at least 85%, more preferably at least 90%, most preferably at least 95%.
The oligomer that can be used in the production of the resin composition for solar cell encapsulation of the present invention is not particularly limited, and epoxy acrylate, urethane acrylate, polyester acrylate, polyether acrylate and acrylic acrylate, silicone acrylate, melamine One or more selected from the group consisting of acrylates, acrylic acrylates, polythiol acrylate derivatives and polythiolcidoacetal systems may be used.
The epoxy acrylate may be used without limitation, aromatic difunctional epoxy acrylate, novolak epoxy acrylate, aliphatic epoxy acrylate and the like.
The urethane acrylate polymerization may be prepared by a hydrogen transfer reaction between a diisocyanate and a polyol having active hydrogen and reacted with an isocyanate and hydroxy alkyl acrylate, but is not limited thereto.
The polyol may be selected and used according to the intended use of the final target material, it is not particularly limited, polyester polyol, polyether polyol, polycarbonate polyol, polycaprolactone polyol, polybutadiene polyol, polysulfide polyol And it is preferable to include at least one selected from the group consisting of monomolecular polyols.
As for the said polyol, it is more preferable to use polyester polyol, polyether polyol, polycarbonate polyol, or a mixture thereof, and can also use together monomolecular diol and triol as needed.
The polyester polyol may be synthesized by polycondensing dibasic acid and glycol in the presence of dibutyl dioctoate or tetrabutoxy titanium as a catalyst. As the dibasic acid, one or more selected from adipic acid, succinic acid, phthalic acid, and terephthalic acid may be used, and glycol may be neopentyl glycol (NPG), 1,4-butanediol (1, 4-butane Diol), 1,5-pentane diol, 1,6-hexanediol (1,6-Hexane Diol), and 1,4-cyclohexanedimethanol (1.4-cyclohexanedimethanol) You can use one or more by selecting from the back.
The molecular weight of the polyester polyol is preferably 400 to 8,000, and more preferably 600 to 3,500. If the molecular weight is less than 400, the storage stability is inferior, and if it is 8,000 or more, the storage property and the overall physical properties may be deteriorated.
Meanwhile, the polyether polyol may be a tetrahydrofurane, ethylene oxide, propylene oxide, carbonate, carbonate, carprolactone homopolymer, copolymer or graft polymer. It is not particularly limited. The molecular weight of the polyether polyol is preferably 300 to 4,000, and more preferably 600 to 3,000. The molecular weight can provide excellent storage stability, workability and general physical properties within the above range.
Single molecular polyols include ethylene glycol (EG), diethylene glycol (DEG), neopentyl glycol (NPG), 1,4-butanediol, 1,5-pentanediol (1,5- pentane Diol), 1,6-hexanediol, 1,4-cyclohexanedimethanol, 1.4-cyclohexanedimethanol, or trimethylolpropane (TMP), and the like, and the preferred molecular weight range Is 60 to 350.
In the composition according to the present invention, the isocyanate may be selected and used according to the purpose of use of the final target material, is not particularly limited, but at least one selected from the group consisting of aromatic isocyanate, aliphatic isocyanate, and alicyclic isocyanate Can be used.
In particular, it is preferable to use aliphatic or alicyclic polyisonates having excellent yellowing resistance, adhesion, chemical resistance, and durability, and these compounds include hydrogenated xylene diisocyanate, 4,4-
It is preferable that the said isocyanate is the equivalent ratio of NCO / OH with respect to active hydrogen in a reactant 1-2, More preferably, it is more than 1 and less than 2. It is preferable that it is 10-55 weight part with respect to 100 weight part of total solids as a weight part. When the equivalent ratio is less than 1, it is difficult to introduce amino groups due to the small amount of isocyanate groups present at the end of the urethane prepolymer. When the equivalent ratio is greater than 2, unreacted polyisocyanate remains in the molecule of the urethane prepolymer, so that urea bonds or low molecular weight products are added when water is added. There is a fear that this excessively generated, deterioration of the overall physical properties and deterioration of stability.
As the hydroxy alkyl acrylate, C1-C12 alkyl acrylate may be used. For example, hydroxymethyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, or hydroxybutyl acrylate may be used, but is not limited thereto.
In the composition of the present invention, the content of the oligomer is not particularly limited, but it is preferable to use 20 to 60 parts by weight. If it is less than 20 parts by weight, the physical properties may be reduced due to the effect of durability and hardening due to shrinkage and deformation, and if it is more than 60 parts by weight, there may be a restriction in using a high viscosity as an encapsulant.
The resin composition for encapsulating UV curable solar cells of the present invention uses a diluent which is an acrylate monomer to control the viscosity and the degree of crosslinking of the oligomer. The diluent is not particularly limited, and monofunctional monomers, difunctional monomers, polyfunctional monomers and mixtures thereof can be used.
The coherent monomer may be alkyl acrylate, aryl acrylate, alkoxy acrylate, or the like, and the di-functional monomer may be tripropylene glycol diacrylate, hexanediol diacrylate, and the like. The polyfunctional monomer is trimethylpropaneethoxy Laterate triacrylate, trimethyl propane triacrylate, etc. can be used.
The content of the diluent in the composition of the present invention is not particularly limited, but it is preferable to use 10 to 70 parts by weight. If the content is less than 10 parts by weight or more than 70 parts by weight, the physical properties may be deteriorated.
Curable resin composition of this invention may contain an additive other than the said oligomer and diluent.
Curable resin composition of this invention may contain a photoinitiator as an additive. A photoinitiator can use a benzophenone series, a diphenoxy benzophenone series, an anthraquinone derivative, a xanthone derivative, a thioxanthone derivative, a benzyl series photoinitiator, etc. without limitation. Commercially available photoinitiators may include, but are not limited to, initiators such as Micure HP-8, Irgacure 819, Darocur TPO, Micure CP-4.
In the composition of the present invention, the content of the photoinitiator is not particularly limited, but it is preferable to use 0.1 to 5 parts by weight. If it is less than 0.1 part by weight, there is a fear that the curing is not possible, and if it exceeds 5 parts by weight, physical properties may be lowered.
It may also further include a melt flow reducing additive that reduces the melt flow of the resin to the limit of making the thermosetting sheet, and may use organic peroxides.
On the other hand, stabilizers may be used to facilitate storage, and may include phenolic antioxidants, alkylated monophenols, alkylthiomethylphenols, hydroquinones, alkylated hydroquinones, tocopherols, hydroxylated thiodiphenyl ethers, and alkylidenes. Bisphenol, O-, N- and S-benzyl compounds, hydroxybenzylated malonates, aromatic hydroxybenzyl compounds, triazine compounds, amine antioxidants, aryl amines, diaryl amines, polyaryl amines, acylamino Phenols, oxamides, metal deactivators, phosphites, phosphonites, benzylphosphonates, ascorbic acid, hydroxylamine, nitrones, thiosynergists, benzofuranones, indolinones, stabilizers shown below and mixtures thereof Included, but not limited to.
Curable resin composition of this invention can further add a silane coupling agent in order to increase adhesive strength. Specific examples of the silane coupling agent include methacryloxypropyltrimethoxysilane, gamma-methacryloxypropylethoxysilane, gamma-chloropropylmethoxysilane, vinyltriethoxysilane, and vinyltris (beta-methoxyethoxy). Silane, vinyltriacetoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, beta- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, vinyltrichloro Silanes, gamma-mer captopropylmethoxysilane, gamma-aminopropyltriethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, and mixtures thereof.
The curable resin composition for encapsulating UV curable solar cells of the present invention is prepared by curing a composition containing an oligomer and a diluent in the absence of oxygen, and in particular, the composition may be prepared by curing in the presence of nitrogen. That is, the gel content of the curable resin composition for encapsulating a UV curable solar cell can be improved by manufacturing a specially manufactured sealed container to provide a nitrogen atmosphere and blocking oxygen as a radical inhibitor.
The present invention also relates to a solar cell module having a solar cell encapsulant layer comprising a curable resin composition for UV curable solar cell encapsulation.
Production Example : Poly urethane Acrylate Prepolymer synthesis
Polyols generally used in the synthesis of the polyether [polypropylene oxide diol (m.w. = 2,000), polybutadiene diol (m.w. = 3,000)] type has a relatively low Tg and elastic modulus, thereby improving adhesion. The polyester polyol [polyethylene butane adipate m.w. = 1,500] exhibited high elastic modulus and high Tg, and was also affected by reactive diluent monomers.
2-hydroxyethyl acrylate (hydroxy) was used after drying for 7 days in a 4Å molecular sieve (molecular sieve). And polyols such as polybutadiene diol (PBD) [MW = 3,000], polypropylene oxide diol PPG [Mw = 2,000], and the like until bubbles are not generated at 80 ° C. and 0.1 mmHg. After drying it was used.
NCO-terminated polyurethane prepolymer was synthesized by injecting nitrogen into a three-necked reactor equipped with a stirrer, injecting a diisocyanate, a polyol, and a DBTDL as a catalyst, maintaining the temperature at 70 ° C., and then reacting for 3 hours. 2-HEA was added thereto, reacted at 50 ° C. for about 3 hours, and sufficiently stirred until the NCO group of the reactant disappeared to synthesize a polyurethane prepolymer. The compositions of Preparation Examples 1 to 7 were prepared as shown in Table 1 below.
Table 1. Composition of Preparation Examples 1 to 7 (Unit: mole)
4.4'-dicyclohexylmethane diisocyanate (HMDI)
Isophorone diisocyanate (IPDI)
2-hydroxyethyl acrylate (HEA)
Polybutadiene diol (PBD) [MW = 3,000]
Polypropylene oxide diol PPG [Mw = 2,000]
Dibutyl tin dilaurate (Dbtdl)
PTMG (polytetramethylene ether glycol) [Mw = 1,000]
In view of the appropriate viscosity and adhesiveness of the polyurethane acrylates of Preparation Examples 1 to 7 was selected an appropriate monomer.
Prior to the experiment, the experiment was conducted on the effect on the efficiency with the oligomer to select the appropriate initiator. As a result of experiments with a representative initiator as shown below, the gel content was found to be 94% or more (see FIG. 4).
Micure HP-8 (BS-A), Irgacure 819 (BS-B), and UV were increased to 340 mJ / cm 2 or more.
Darocur TPO (BS-C), 1020 mJ / cm 2 , Micure CP-4 (BS-D) 1360mJ / cm 2
As time passed, it appeared in order of BS-D> BS-A> BS-B> BS-C. In addition, it was possible to select the appropriate initiator through the adhesion experiment (see Fig. 3). Examples 1 to 7 were prepared by selecting the appropriate initiator through the above experiment. In addition, suitable stabilizers may be selected and added to facilitate storage.
Table 2. Viscosity Control and Example (parts by weight)
40
40
40
40
40
40
40
IOA (isooctyl acrylate),
IBOA (isobonyl acrylate),
HDDA (1,6-Hexanediol diacrylate),
Trimethylopropane triacrylate (TMPTA),
Silane [(methacryloyloxy) propyl) trimethoxysilane)]-(Methacryloyloxy) propyl
HCPK (hydroxyl cyclohexyl phenyl ketone)
Experimental Example
Experimental Example 1. Hardening method
In a specially designed sealed container, apply the cured resin to a transparent glass plate within a thickness of about 0.3mm, remove nitrogen by injecting nitrogen, pressurize the pressure gauge to maintain 2kg / ㎠, and seal it with an ultraviolet irradiator (80 W / cm, 6.3 A, 365 nm dominant wavelength) was dried.
Experimental Example 2. Gel Content Measurement
The gel content represents the degree of cross linking of the polymer and is represented by the following general formula (1).
[Formula 1]
Gel content (%) = (m / m 0 ) × 100
In
1) EVA measuring method
Table 3. Module process conditions for gel content measurement
2) Measuring method of laminating resin gel
In order to determine the degree of crosslinking according to the UV irradiation amount of the prepared sample, the uncured portion of the film cured under THF, 60 ° C. and 24 h conditions was removed, and the weight was measured after drying at 50 ° C. for 24 hours. The gel content of the cured film was obtained through the general formula (1).
Gel content measurement result
Experimental results The gel content of Preparation Examples 1-7 (see Fig. 1) was 95% or more. This showed a difference of more than 15% in gel content compared to 80%, which is a standard proposed by EVA, a filler used in general solar cell modules.
In order to have an appropriate viscosity (50 ~ 300) cps, 50% dilution with an appropriate monomer, but the difference in the gel content appeared as shown in FIG. In order to improve adhesion and elongation, a monomer was added (Examples 1 to 7), but the gel content was 60% or less as a general curing method. In order to fundamentally improve this, it was confirmed that the gel content was improved by manufacturing a specially made airtight container to provide a nitrogen atmosphere and blocking oxygen, which inhibits radical reaction.
Experimental Example 3. Heat resistance test Heat Resistance Test )
Experimental Conditions: The samples of Examples 1-7 were placed in an oven and pre-heated to 80 ° C. This sample was kept at this temperature in the oven for 25 days. The electro-optical properties at the two gaps were evaluated during the test start and during the test.
[Property Specifications-Sandwich Glass Laminate Size: 300mm x 300mm Cold Lamination]
As a result, a negligible difference was observed in the value of the electro-optic properties after the end of the test.
Experimental Example 4. Promoting weather resistance and condensation-freezing test
The solar cell module uses a QUV tester and a cold test, a test device, to check yellowing and delamination, which are essential elements of the filler due to external exposure, and then irradiates heat or strong ultraviolet energy. Aging was observed to observe yellowing and peeling of the film.
The results are as described in Tables 4, 5, and 6 below, and the experimental results of Examples 1 to 7 were found to be the same with almost no errors.
Table 4. Results of exposure to outdoor UV rays
Table 5. Thermal test results (conditions: 80 ° C., oven chamber)
Experimental Example 5. Condensation-Freezing Test
This test is intended to examine the durability of the module when the temperature drops below 0 ° C after high temperature and high humidity. The temperature range was 85 to -40 degreeC. The measurement results are as shown in the cold test results of Table 6 below.
Experimental Example 6. Electrical resistance test Electrical Resistance Test )
Experimental conditions: The samples of Examples 1-7 were placed in an oven and pre-heated to 60 ° C. and supplied with a voltage of 110V. The delamination phenomenon was checked through a 12-day test while maintaining at 60 ° C. for 600 hours. The measurement results are shown in Table 6 below.
Experimental Example 7. water resistance test
In order to test the durability of the product, a 600hr test was conducted at a temperature of 90 ° C and a relative humidity of 99%. The measurement results are shown in Table 6 below.
As a result of the experiment for Examples 1 to 7 it was confirmed that the performance of the filler is superior to the conventional EVA resin used as a filler for solar cells.
Table 6. Experimental Results
In addition, as a result of measuring the solar cell efficiency, the solar cell module using the EVA filler was found to reduce the efficiency of the silicon solar cell (Fig. 12) by 15% (see Fig. 8).
In Comparative Example 2 and Comparative Example 3, when the gel content is 60% or less, the efficiency was reduced by 25% or more. In Example 1 (see FIG. 13) and Example 2 (see FIG. 14), the gel content was 95% or more. Rather, the experiments showed that the solar cell efficiency slightly increased.
As a result, it can be seen from the experimental results that the direct decrease in solar cell efficiency is due to the influence of the gel content.
Experimental Example 8. Solar cell efficiency measurement
The resin composition was used as a filler to fabricate a solar cell module, and the experiment was conducted through a solar cell efficiency meter. (Measurement of solar cell efficiency based on KS C 0104) The specimens were tested with Examples and Comparative Examples using KEP solar cell silicon.
Measuring range: Specimen 114.49mm × 114.49mm
Table 7. Solar cell efficiency measurement
a) A device that converts solar cell light energy into electrical energy
b) Isc short-circuit current (Fig. A point)
c) Voc open voltage (figure B point)
d) Pmax maximum power (peak power, figure C point)
e) Im maximum current
f) Vm maximum voltage
g) Il load current
h) Vl load voltage
i) Pl load power (Pl = Il * Vl)
j) Fill Factor (FF) The ratio between the product of open circuit voltage and short circuit current and the maximum output power.
Table 8 shows the overall measurement results for the efficiency measurement.
Table 8. Efficiency measurement results
[mA]
[V]
[mW]
[V]
[mA]
[mA / cm2]
[%]
conclusion
Experiments confirmed that the solar cell efficiency of the silicon cell itself decreased to less than 15% due to the effect of EVA filler in the manufacturing process of the solar cell module. In addition, it was confirmed through experiments that the factors considered to affect the efficiency of the conventional solar cell have a rather small effect on the transmittance, and the gel content acts as an important factor in order to increase the cell efficiency. In order to maximize the efficiency of the silicon battery synthesized a new polyurethane acrylate prepolymer, which is an oligomer that can increase the gel content while replacing the conventional EVA filler. Polyols, such as PPG / PEG / PTMG / PBD, which are involved in the synthesis, are involved in elongation and adhesion, and are almost independent of the gel content.
In addition, in order to increase the degree of crosslinking of the oligomer combination was prepared using a method of manufacturing to seal to remove the oxygen as a curing inhibitory element was able to have a high efficiency solar cell efficiency.
Figure 1 shows the gel content measurement results of Preparation Examples 1-7.
Figure 2 shows the gel content measurement results of Examples 1 to 7.
Figure 3 shows the results of the probe tack test to determine the adhesion according to the type of initiator.
Figure 4 shows the gel content according to the type of initiator.
5 shows the results of measuring the efficiency of the solar cell (KEP solar silicon solar cell).
6 shows the solar cell module conversion efficiency of the second embodiment.
7 shows the solar cell module conversion efficiency of the second embodiment.
Figure 8 shows the EVA solar cell module conversion efficiency of Comparative Example 1.
9 shows the solar cell module conversion efficiency of Comparative Example 2.
10 shows the solar cell module conversion efficiency of Comparative Example 3.
Figure 11 shows the gel content according to the type of functional group.
12 shows the results of measuring solar cell efficiency of silicon solar cells.
FIG. 13 shows the results of measuring solar cell efficiency of Example 1 (gel content of 95% or more).
14 shows the results of measuring the solar cell efficiency of Example 2 (gel content of 95% or more).
Claims (13)
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| KR101318378B1 (en) * | 2012-02-05 | 2013-10-18 | 주식회사 세아 이앤티 | Sealant for Electrode of Dye-Sensitized Solar Cells |
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