JP2008235882A - 太陽電池用封止膜及びこれを用いた太陽電池 - Google Patents
太陽電池用封止膜及びこれを用いた太陽電池 Download PDFInfo
- Publication number
- JP2008235882A JP2008235882A JP2008041116A JP2008041116A JP2008235882A JP 2008235882 A JP2008235882 A JP 2008235882A JP 2008041116 A JP2008041116 A JP 2008041116A JP 2008041116 A JP2008041116 A JP 2008041116A JP 2008235882 A JP2008235882 A JP 2008235882A
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- JP
- Japan
- Prior art keywords
- solar cell
- sealing film
- vinyl acetate
- organic peroxide
- ethylene vinyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000007789 sealing Methods 0.000 title claims abstract description 90
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 60
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 55
- 150000001451 organic peroxides Chemical group 0.000 claims abstract description 31
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 30
- 230000004913 activation Effects 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 238000004132 cross linking Methods 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 18
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- 150000002978 peroxides Chemical class 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 1
- -1 polyethylene terephthalate Polymers 0.000 description 19
- 238000000354 decomposition reaction Methods 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008961 swelling Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000010248 power generation Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000010525 oxidative degradation reaction Methods 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 6
- 229920006255 plastic film Polymers 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920002620 polyvinyl fluoride Polymers 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 5
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- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000012760 heat stabilizer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
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- 238000000576 coating method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
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- 238000007740 vapor deposition Methods 0.000 description 3
- RIPYNJLMMFGZSX-UHFFFAOYSA-N (5-benzoylperoxy-2,5-dimethylhexan-2-yl) benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(=O)OOC(C)(C)CCC(C)(C)OOC(=O)C1=CC=CC=C1 RIPYNJLMMFGZSX-UHFFFAOYSA-N 0.000 description 2
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- CTPYJEXTTINDEM-UHFFFAOYSA-N 1,2-bis(1-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOCC(C)C1=CC=CC=C1C(C)COOC(C)(C)C CTPYJEXTTINDEM-UHFFFAOYSA-N 0.000 description 2
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 2
- 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 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 2
- 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 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 150000005846 sugar alcohols Chemical class 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- CSUUDNFYSFENAE-UHFFFAOYSA-N (2-methoxyphenyl)-phenylmethanone Chemical compound COC1=CC=CC=C1C(=O)C1=CC=CC=C1 CSUUDNFYSFENAE-UHFFFAOYSA-N 0.000 description 1
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-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
- ARVUDIQYNJVQIW-UHFFFAOYSA-N (4-dodecoxy-2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC(OCCCCCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 ARVUDIQYNJVQIW-UHFFFAOYSA-N 0.000 description 1
- BPXVHIRIPLPOPT-UHFFFAOYSA-N 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound OCCN1C(=O)N(CCO)C(=O)N(CCO)C1=O BPXVHIRIPLPOPT-UHFFFAOYSA-N 0.000 description 1
- 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 1
- XSZYESUNPWGWFQ-UHFFFAOYSA-N 1-(2-hydroperoxypropan-2-yl)-4-methylcyclohexane Chemical compound CC1CCC(C(C)(C)OO)CC1 XSZYESUNPWGWFQ-UHFFFAOYSA-N 0.000 description 1
- HQOVXPHOJANJBR-UHFFFAOYSA-N 2,2-bis(tert-butylperoxy)butane Chemical compound CC(C)(C)OOC(C)(CC)OOC(C)(C)C HQOVXPHOJANJBR-UHFFFAOYSA-N 0.000 description 1
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 description 1
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical compound CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-UHFFFAOYSA-N 0.000 description 1
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 1
- BBBUAWSVILPJLL-UHFFFAOYSA-N 2-(2-ethylhexoxymethyl)oxirane Chemical compound CCCCC(CC)COCC1CO1 BBBUAWSVILPJLL-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- UBQXQCCAPASFJR-UHFFFAOYSA-N 2-[2-(2-nonanoyloxyethoxy)ethoxy]ethyl nonanoate Chemical compound CCCCCCCCC(=O)OCCOCCOCCOC(=O)CCCCCCCC UBQXQCCAPASFJR-UHFFFAOYSA-N 0.000 description 1
- JEYLQCXBYFQJRO-UHFFFAOYSA-N 2-[2-[2-(2-ethylbutanoyloxy)ethoxy]ethoxy]ethyl 2-ethylbutanoate Chemical compound CCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CC JEYLQCXBYFQJRO-UHFFFAOYSA-N 0.000 description 1
- SSKNCQWPZQCABD-UHFFFAOYSA-N 2-[2-[2-(2-heptanoyloxyethoxy)ethoxy]ethoxy]ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOCCOCCOC(=O)CCCCCC SSKNCQWPZQCABD-UHFFFAOYSA-N 0.000 description 1
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 1
- KUAUJXBLDYVELT-UHFFFAOYSA-N 2-[[2,2-dimethyl-3-(oxiran-2-ylmethoxy)propoxy]methyl]oxirane Chemical compound C1OC1COCC(C)(C)COCC1CO1 KUAUJXBLDYVELT-UHFFFAOYSA-N 0.000 description 1
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- YAQDPWONDFRAHF-UHFFFAOYSA-N 2-methyl-2-(2-methylpentan-2-ylperoxy)pentane Chemical compound CCCC(C)(C)OOC(C)(C)CCC YAQDPWONDFRAHF-UHFFFAOYSA-N 0.000 description 1
- WXDJDZIIPSOZAH-UHFFFAOYSA-N 2-methylpentan-2-yl benzenecarboperoxoate Chemical compound CCCC(C)(C)OOC(=O)C1=CC=CC=C1 WXDJDZIIPSOZAH-UHFFFAOYSA-N 0.000 description 1
- BQARUDWASOOSRH-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-yl hydrogen carbonate Chemical compound CC(C)(C)OOC(C)(C)OC(O)=O BQARUDWASOOSRH-UHFFFAOYSA-N 0.000 description 1
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- ZHKCHSNXUCRFSM-UHFFFAOYSA-N 4-[2-[4,4-bis(tert-butylperoxy)cyclohexyl]propan-2-yl]-1,1-bis(tert-butylperoxy)cyclohexane Chemical compound C1CC(OOC(C)(C)C)(OOC(C)(C)C)CCC1C(C)(C)C1CCC(OOC(C)(C)C)(OOC(C)(C)C)CC1 ZHKCHSNXUCRFSM-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】エチレン酢酸ビニル共重合体および架橋剤を含む太陽電池用封止膜であって、
前記架橋剤が140kJ/mol以上の活性化エネルギーを有する有機過酸化物であり、前記エチレン酢酸ビニル共重合体100質量部に対する前記有機過酸化物の含有量と前記有機過酸化物の理論活性酸素量とを掛けた値が3〜18を満たすことを特徴とする太陽電池用封止膜。
【選択図】なし
Description
前記架橋剤が140kJ/mol以上の活性化エネルギーを有する有機過酸化物であり、前記エチレン酢酸ビニル共重合体100質量部に対する前記有機過酸化物の含有量と前記有機過酸化物の理論活性酸素量とを掛けた値が3〜18を満たすことを特徴とする太陽電池用封止膜により上記課題を解決する。
本発明の封止膜に用いられる架橋剤の活性化エネルギーは、140kJ/mol以上、好ましくは150kJ/mol以上、より好ましくは150〜180kJ/mol、特に好ましくは150〜175kJ/molである。
さらに、本発明の太陽電池用封止膜では、前記有機過酸化物を、エチレン酢酸ビニル共重合体100質量部に対する有機過酸化物の含有量(Cp)と、前記有機過酸化物の理論活性酸素量(Aw)とを掛けた値(Cp×Aw)が3〜18、好ましくは3〜15、特に好ましくは3〜10を満たすように含む。CpとAwとを掛けた値が、3未満では遊離ラジカルによるエチレン酢酸ビニル共重合体間の架橋を十分な密度で形成することができない恐れがあり、18を超える場合には紫外線や熱などのエネルギーの照射により遊離ラジカルが発生する恐れがある。
本発明の封止膜は、上述した架橋剤の他、さらにエチレン酢酸ビニル共重合体を含む。前記封止膜には、エチレン酢酸ビニル共重合体の他に必要に応じて、ポリビニルホルマール、ポリビニルブチラール(PVB樹脂)、変性PVBなどのポリビニルアセタール系樹脂、塩化ビニル樹脂を併用しても良いが、エチレン酢酸ビニル共重合体のみを用いることが好ましい。
さらに、本発明の太陽電池用封止膜は、必要に応じて、架橋助剤を含んでいてもよい。前記架橋助剤は、エチレン酢酸ビニル共重合体の架橋密度を向上させることができる。
本発明の太陽電池用封止膜は、太陽電池内部の封止性能を考慮すると、優れた接着力を有するのが好ましい。したがって、前記封止膜は、接着向上剤をさらに含んでいるのがよい。
本発明の太陽電池用封止膜は、膜の種々の物性(機械的強度、透明性等の光学的特性、耐熱性、耐光性、架橋速度等)の改良あるいは調整のため、必要に応じて、可塑剤、アクリロキシ基含有化合物、メタクリロキシ基含有化合物及び/又はエポキシ基含有化合物などの各種添加剤をさらに含んでいてもよい。
(1)エチレン酢酸ビニル共重合体(酢酸ビニル含有量25質量部)100質量部
(2)架橋剤1(2,5−ジ−メチル−2,5−ジ(ベンゾイルパーオキシ)ヘキサン)0.6質量部
上記配合のEVA組成物を用いて、80℃でカレンダ成形してEVA膜(厚さ500μm)を成膜した。
架橋剤の種類を表1に示す通りに変更した以外は、実施例1と同様にしてEVA膜を成膜した。
実施例1〜5及び比較例1〜2で作製した各EVA膜について、下記手順に従って分解生成ガスの発生を評価した。
12 裏面側保護部材、
13A 表面側封止膜、
13B 裏面側封止膜、
14 太陽電池セル、
21 ガラス基板、
22 バックシート、
23A 表面側封止膜、
23B 裏面側封止膜、
24 ポリエチレンテレフタレートフィルム、
25 アルミニウム基板。
Claims (5)
- エチレン酢酸ビニル共重合体および架橋剤を含む太陽電池用封止膜であって、
前記架橋剤が140kJ/mol以上の活性化エネルギーを有する有機過酸化物であり、前記エチレン酢酸ビニル共重合体100質量部に対する前記有機過酸化物の含有量と前記有機過酸化物の理論活性酸素量とを掛けた値が3〜18を満たすことを特徴とする太陽電池用封止膜。 - 前記有機過酸化物が、ジアルキルパーオキサイド系有機過酸化物であることを特徴とする請求項1に記載の太陽電池用電池用封止膜。
- 前記エチレン酢酸ビニル共重合体における酢酸ビニル含有量が、前記エチレン酢酸ビニル共重合体100質量部に対して20〜35質量部である請求項1又は2のいずれか1項に記載の太陽電池用封止膜。
- さらに架橋助剤を、前記エチレン酢酸ビニル共重合体100質量部に対して0.1〜5.0質量部含むことを特徴とする請求項1〜3のいずれか1項に記載の太陽電池用封止膜。
- 表面側透明保護部材と裏面側保護部材との間に、封止膜を介在させ架橋一体化させることにより太陽電池用セルを封止してなる太陽電池において、
前記封止膜が、請求項1〜4のいずれか1項に記載の太陽電池用封止膜であることを特徴とする太陽電池。
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Cited By (4)
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JP2011069812A (ja) * | 2009-08-31 | 2011-04-07 | Mitsui Chemicals Inc | 測定方法、太陽電池モジュールの製造方法、測定装置、太陽電池モジュールおよび太陽電池モジュールの評価方法 |
WO2011151969A1 (ja) | 2010-06-03 | 2011-12-08 | 株式会社カネカ | 太陽電池用バックシートおよび太陽電池モジュール |
JP2016152389A (ja) * | 2015-02-19 | 2016-08-22 | 信越化学工業株式会社 | 太陽電池モジュールの製造方法 |
TWI580571B (zh) * | 2010-01-25 | 2017-05-01 | C I 化成股份有限公司 | 太陽能電池模塊用密封膜的製造方法及太陽能電池模塊的製造方法 |
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CN101921425B (zh) * | 2010-08-30 | 2012-08-22 | 苏州度辰新材料有限公司 | 乙烯醋酸乙烯共聚物胶膜和太阳能电池组件 |
CN101942145B (zh) * | 2010-09-13 | 2012-12-26 | 苏州福斯特光伏材料有限公司 | 一种封装胶膜组合物及其应用 |
CN105074940B (zh) * | 2013-02-27 | 2017-04-26 | 日本瑞翁株式会社 | 太阳能电池组件及其制造方法 |
KR101320140B1 (ko) * | 2013-04-17 | 2013-10-23 | 도레이첨단소재 주식회사 | 태양전지 모듈용 봉지재 조성물 및 이를 사용한 태양전지 모듈 |
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JP2016152389A (ja) * | 2015-02-19 | 2016-08-22 | 信越化学工業株式会社 | 太陽電池モジュールの製造方法 |
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US20100089446A1 (en) | 2010-04-15 |
EP2117049A1 (en) | 2009-11-11 |
EP2117049A4 (en) | 2012-11-07 |
CN101617410A (zh) | 2009-12-30 |
WO2008102863A1 (ja) | 2008-08-28 |
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