CN102361043A - Ethylene vinyl acetate (EVA) for encapsulating solar cell - Google Patents
Ethylene vinyl acetate (EVA) for encapsulating solar cell Download PDFInfo
- Publication number
- CN102361043A CN102361043A CN2011103615358A CN201110361535A CN102361043A CN 102361043 A CN102361043 A CN 102361043A CN 2011103615358 A CN2011103615358 A CN 2011103615358A CN 201110361535 A CN201110361535 A CN 201110361535A CN 102361043 A CN102361043 A CN 102361043A
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- Prior art keywords
- eva
- solar cell
- cell packaging
- titanium dioxide
- butyl
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- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 40
- 239000004408 titanium dioxide Substances 0.000 claims description 18
- 238000004806 packaging method and process Methods 0.000 claims description 14
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 8
- UNIYDALVXFPINL-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propylsilicon Chemical compound CC(=C)C(=O)OCCC[Si] UNIYDALVXFPINL-UHFFFAOYSA-N 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- -1 pentaerythritol ester Chemical class 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000004611 light stabiliser Substances 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 235000019260 propionic acid Nutrition 0.000 claims description 4
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- GPOGLVDBOFRHDV-UHFFFAOYSA-N (2-nonylphenyl) dihydrogen phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(O)O GPOGLVDBOFRHDV-UHFFFAOYSA-N 0.000 claims description 3
- YEYQUBZGSWAPGE-UHFFFAOYSA-N 1,2-di(nonyl)benzene Chemical compound CCCCCCCCCC1=CC=CC=C1CCCCCCCCC YEYQUBZGSWAPGE-UHFFFAOYSA-N 0.000 claims description 3
- NOSXUFXBUISMPR-UHFFFAOYSA-N 1-tert-butylperoxyhexane Chemical class CCCCCCOOC(C)(C)C NOSXUFXBUISMPR-UHFFFAOYSA-N 0.000 claims description 3
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 150000005690 diesters Chemical class 0.000 claims description 3
- ZJIPHXXDPROMEF-UHFFFAOYSA-N dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O ZJIPHXXDPROMEF-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- LIXVMPBOGDCSRM-UHFFFAOYSA-N nonylbenzene Chemical compound CCCCCCCCCC1=CC=CC=C1 LIXVMPBOGDCSRM-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 150000008301 phosphite esters Chemical class 0.000 claims description 3
- 150000003053 piperidines Chemical class 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- FANGQVKSFHFPBY-UHFFFAOYSA-N 2-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound OC(=O)C(C)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FANGQVKSFHFPBY-UHFFFAOYSA-N 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- RJHSCCZVRVXSEF-UHFFFAOYSA-N (2-hydroxyphenyl) benzoate Chemical compound OC1=CC=CC=C1OC(=O)C1=CC=CC=C1 RJHSCCZVRVXSEF-UHFFFAOYSA-N 0.000 claims 1
- 229940116351 sebacate Drugs 0.000 claims 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229920000647 polyepoxide Polymers 0.000 abstract description 8
- 239000003822 epoxy resin Substances 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000002075 main ingredient Substances 0.000 abstract description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 abstract 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 5
- 239000002313 adhesive film Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000011514 reflex Effects 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- PYOLJOJPIPCRDP-UHFFFAOYSA-N 1,1,3-trimethylcyclohexane Chemical compound CC1CCCC(C)(C)C1 PYOLJOJPIPCRDP-UHFFFAOYSA-N 0.000 description 2
- HEJCZAMFVMNFLC-UHFFFAOYSA-N 10-oxo-10-(2,2,6,6-tetramethylpiperidin-4-yl)oxydecanoic acid Chemical compound CC1(C)CC(OC(=O)CCCCCCCCC(O)=O)CC(C)(C)N1 HEJCZAMFVMNFLC-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- GDESWOTWNNGOMW-UHFFFAOYSA-N resorcinol monobenzoate Chemical compound OC1=CC=CC(OC(=O)C=2C=CC=CC=2)=C1 GDESWOTWNNGOMW-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses ethylene vinyl acetate (EVA) for encapsulating a solar cell. The EVA is encapsulated between a cell sheet and a back plate in a solar assembly, namely is applied to a lower layer EVA adhesive film in the assembly; a main ingredient of the EVA is ethylene-vinyl acetate, the conventional epoxy resin is subjected to graft copolymerization modification, and modified titanium dioxide powder and other additive ingredients are added, so that solar reflected light at a gap of the cell sheet can be fully utilized by the lower layer EVA adhesive film in the assembly, a path of the reflected light is shorter than that of the original reflected light, the range of the reflected light reflected to the cell sheet is expanded, and the photoelectric conversion efficiency of the cell sheet is improved further. Simultaneously, the modified EVA has high physical performance such as bonding strength, insulation resistance and the like.
Description
Technical field
The present invention relates to a kind of EVA that solar components is used that encapsulates, relate in particular to the EVA that in solar cell package, is used between battery sheet and following paranotum.
Background technology
Current; The lasting use of conventional energy resource has brought a series of economy and social concerns such as energy scarcity and ecological deterioration; Generally speaking; Conventional energy resource is meant technical comparative maturity and by the energy of extensive utilization, and new forms of energy typically refer to as yet utilize on a large scale, just at the energy of active research exploitation.Therefore; Coal, oil, natural gas and big-and-middle-sized water power all are counted as conventional energy resource; And the extensive at present just pollution-free green energy that utilizes of solar energy; Countries in the world are all at the active development solar module, and high conversion efficiency, low cost are the solar module main development tendency, also are the targets that technical research person pursues.
As shown in Figure 1, solar components generally by following which floor encapsulate from top to bottom and form: promptly glass 1, and upper strata EVA glued membrane 2, battery sheet 3, the EVA of lower floor glued membrane 4 and backboard 5, said upper strata EVA glued membrane 2 and the EVA of lower floor glued membrane 4 all are the materials of transparent high transmission rate.Upper strata EVA glued membrane 2 is positioned between the glass of battery sheet and upside, i.e. the sensitive side of battery sheet, and it is made into high transparent main purpose is the transmitance that increases incident light, is beneficial to the photoelectric conversion efficiency that improves solar battery sheet.And the EVA of lower floor glued membrane 4 is used in the backlight side between battery sheet and following paranotum, mainly plays the protection backboard and ends ultraviolet light and reach the crosslinked purpose of component internal storeroom.
And the efficient of solar components is under battery sheet class efficient fixing situation; It is through the transmitance of lifting glass and EVA and the reflectivity of backboard that component efficiency promotes on the one hand, is that the contact resistance that reduces welding self-resistance and welding and battery sheet is realized on the other hand.
Summary of the invention
The objective of the invention is for further improving the efficient of solar components; A kind of white reflection EVA of used for encapsulation of solar battery is proposed; It is applied in the solar components between cell back light side and following paranotum; Making full use of the solar reflection optical of battery sheet gap, increase on the battery sheet catoptrical amount of incident on the sensitive surface, thereby further promote battery sheet photoelectric conversion efficiency.
For realizing above-mentioned purpose, the present invention proposes following technical scheme: a kind of solar cell packaging EVA is mixed with by following raw materials in weight portion:
Wherein, said modified epoxy is an olefines epoxy resin, amine epoxy resin, the mixture of organosilicon epoxy resin.
Said modifying titanium dioxide is formed by titanium dioxide and methacryloxypropyl silane mixture, and the proportion of titanium dioxide and methacryloxypropyl silane is 9: 1-7: 3.
The weight of titanium dioxide is counted the rutile-type of 80-95% in the said modifying titanium dioxide, and the diameter of said titanium dioxide granule is 100-300nm.
Said oxidation inhibitor is selected from three (2, the 4-di-tert-butyl-phenyl) phosphite ester, distearyl pentaerythrite diphosphorous acid fat at least; [β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, the β-positive octadecanol ester of (4-hydroxyl-3,5 di-tert-butyl-phenyl) propionic acid; In tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester) and three (nonyl phenyl) phosphite any one or two or more combinations.
Said crosslinking agent is that following 2 kinds of mixing match form: 2, and 5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane.
Said light stabilizer is that following one or more mixing match form: two (1-octyloxy-2,2,6, the 6-tetramethyl-4-piperidyl) diester in the last of the ten Heavenly stems of hindered amines; Two (2,2,6,6-tetramethyl-4-piperidyl) sebacate; Poly-succinic (4 hydroxyls-2,2,6,6-tetramethyl-1 piperidines ethanol fat).
Said UV absorbers is that following one or more mixing match form: UV-531, and [4,6-two (2 for 2-; The 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol; Aerosil, resorcinol monobenzoate.
Said silane coupler is that following one or more mixing match form: γ-glycidyl ether oxygen propyl trimethoxy silicane, VTES, vinyltrimethoxy silane.
Compared with prior art, be packaged in after the EVA of lower floor in the solar components adopts the white reflection EVA that the present invention proposes, it has the following advantages:
The first, made full use of the solar reflection optical of battery sheet gap; Make the reverberation path than preceding shortening, reflex to reverberation on glass and be increased, thereby increased the reverberation that reflexes on the battery sheet; And further promoted battery sheet photoelectric conversion efficiency; Experiment shows that white reflection EVA of the present invention can make the CTM (Cell to Module, the packaging efficiency of assembly) of assembly promote 0.2-1% and not wait.
The second,, make that the EVA after the modification has excellent adhesive strength, physical properties such as anti-insulating properties through composition among the existing EVA is improved.
Description of drawings
Fig. 1 is the front view of solar components;
Fig. 2 adopts the vertical view of the solar components of solar cell packaging EVA of the present invention;
Fig. 3 incident ray utilizes figure again through the solar components light reflected that adopts EVA of the present invention;
Fig. 4 is that incident light is through adopting the solar components light reflected whereabouts figure of traditional E VA.
Embodiment
To combine accompanying drawing of the present invention below, the technical scheme in the preferred embodiment of the present invention will be carried out clear, complete description.
Like Fig. 1,2, shown in 3; Disclosed solar cell packaging EVA is the white reflection EVA that a kind of novel being used to improves solar components efficient, and it is used for being encapsulated in the top of paranotum under the solar components battery sheet; Promptly be used on the EVA of the lower floor glued membrane 4 of 5 of battery sheet 3 and backboards; Said solar components comprises glass 1, upper strata EVA glued membrane 2, battery sheet 3, the EVA of lower floor glued membrane 4 and backboard 5 from top to bottom successively, and in addition, assembly also comprises terminal box 6; Be welded in the busbar 8 of 3 of battery sheets, and be coated on the peripheral frame 7 of assembly.
The Main Ingredients and Appearance of said white reflection EVA is an ethene-vinyl acetate fat; It passes through the conventional epoxies grafting, copolymerization and modification, and improved additives is added modifying titanium dioxide powder and other compositions and formed; Specifically, white reflection EVA of the present invention is processed by following weight portion proportioning raw material:
1) 100 parts ethene-vinyl acetate fat;
2) 0.5-2 part modified epoxy;
3) 5-10 part modifying titanium dioxide powder;
4) 0.5-1.2 part antioxidant;
5) 0.3-1.2 part crosslinking agent;
6) 0.05-0.20 part light stabilizer;
7) 0.1-0.5 part UV absorbers;
8) 0.5-1.5 part silane coupler.
Wherein, Said modified epoxy is by olefines epoxy resin; Amine epoxy resin, organosilicon epoxy resin mixes, and the weight that the titanium dioxide powder in the said modifying titanium dioxide powder is used is counted the rutile-type of 80%-95%; Cooperate the methacryloxypropyl silane mixture to use; It is 9 that titania powder and methacryloxypropyl silane proportioning are recommended proportion: 1-7: between 3, the titanium dioxide granule diameter is between the 100-300nm, and the modifying titanium dioxide powder of adding of the present invention has 3 advantages:
1, ultraviolet luminous energy is produced intrinsic and absorb, can prevent that ultraviolet ray from producing decomposition to the backboard of macromolecular material, macromolecular materials such as protection solar energy backboard;
2, the modifying titanium dioxide powder can well strengthen the reflection of incident ray, thereby has improved effective light of returning from reflection of glass surface, has further improved the photoelectric conversion efficiency of solar cell;
3, the methacryloxypropyl silane that adds is a kind of coupling agent; Effect is the dispersiveness that in EVA high-temperature cross-linking process, strengthens titania powder; Can make that to reflex to optical range on glass from EVA more even; Further improve and reflex to the effective light on the battery sheet, the photoelectric conversion efficiency of raising solar battery sheet.
Said antioxidant mainly is divided into hindered phenol type antioxidant or phosphite kind antioxidant, and said antioxidant is specially following one or more mixing match and forms: three (2, the 4-di-tert-butyl-phenyl) phosphite ester; Distearyl pentaerythrite diphosphorous acid fat, [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; β-(4-hydroxyl-3; 5 di-tert-butyl-phenyls) the positive octadecanol ester of propionic acid, tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), three (nonyl phenyl) phosphite.
Said crosslinking agent is mainly peroxide, and said crosslinking agent is specially by following two kinds of composition proportion and forms: 2, and 5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane.
Said light stabilizer is specially following one or more mixing match and forms: two (1-octyloxy-2,2,6, the 6-tetramethyl-4-piperidyl) diester in the last of the ten Heavenly stems of hindered amines; Two (2,2,6,6-tetramethyl-4-piperidyl) sebacate; Poly-succinic (4 hydroxyls-2,2,6,6-tetramethyl-1 piperidines ethanol fat).
Said UV absorbers is specially following one or more mixing match and forms: UV-531, and [4,6-two (2 for 2-; The 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol; Aerosil, resorcinol monobenzoate.
Said silane coupler is tackifier, is specially following one or more mixing match and forms: γ-glycidyl ether oxygen propyl trimethoxy silicane, VTES, vinyltrimethoxy silane.
Disclosed white reflection EVA, it has excellent adhesive strength to macromolecular material and inorganic material surface, and anti-insulation property are good; The break-in shrinkage is little; Reflective article dimensional stability and pliability are good, and be heat-resisting, the physical and chemical performance that anti chemical properties is good.Like Fig. 3 and the light whereabouts figure that adopts white reflection EVA of the present invention and traditional E VA for the EVA of assembly lower floor glued membrane 4 respectively shown in Figure 4; As can be seen from the figure; Adopt the solar reflection optical of incident light of white reflection EVA of the present invention to reflex on the battery sheet in battery sheet gap; Via the sensitive surface of bottom reflection to the battery sheet of upper strata glass 1, make the sensitive surface of battery sheet can receive more illumination, thereby improved battery sheet photoelectric conversion efficiency again.
Technology contents of the present invention and technical characterictic have disclosed as above; Yet those of ordinary skill in the art still maybe be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; Therefore; Protection range of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the present patent application claim.
Claims (9)
1. a solar cell packaging EVA is characterized in that, said EVA is mixed with by following raw materials in weight portion:
2. solar cell packaging EVA according to claim 1; It is characterized in that: said modifying titanium dioxide is formed by titanium dioxide and methacryloxypropyl silane mixture, and the weight ratio of titanium dioxide and methacryloxypropyl silane is 9: 1-7: 3.
3. solar cell packaging EVA according to claim 2 is characterized in that: the diameter of said titanium dioxide granule is 100-300nm, and weight is counted 80-95% in the said titanium dioxide is rutile-type.
4. solar cell packaging EVA according to claim 1; It is characterized in that: said oxidation inhibitor is selected from three (2, the 4-di-tert-butyl-phenyl) phosphite ester, distearyl pentaerythrite diphosphorous acid fat at least; [β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, the β-positive octadecanol ester of (4-hydroxyl-3,5 di-tert-butyl-phenyl) propionic acid; In tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester) and three (nonyl phenyl) phosphite any one or two or more combinations.
5. solar cell packaging EVA according to claim 1 is characterized in that: said crosslinking agent is that following two kinds of mixing match form: 2, and 5-dimethyl-2; Two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3; 3, the 5-trimethyl-cyclohexane.
6. solar cell packaging EVA according to claim 1 is characterized in that: said light stabilizer is that following one or more mixing match form: hindered amines two (1-octyloxy-2,2,6; 6-tetramethyl-4-piperidyl) last of the ten Heavenly stems diester, two (2,2; 6,6-tetramethyl-4-piperidyl) sebacate, poly-succinic (4 hydroxyls-2; 2,6,6-tetramethyl-1 piperidines ethanol fat).
7. solar cell packaging EVA according to claim 1 is characterized in that: said UV absorbers is that following one or more mixing match form: UV-531, and 2-[4; 6-two (2; The 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol; Aerosil, the benzenediol mono benzoate.
8. solar cell packaging EVA according to claim 1; It is characterized in that: said silane coupler is that following one or more mixing match form: γ-glycidyl ether oxygen propyl trimethoxy silicane; VTES, vinyltrimethoxy silane.
9. according to any described solar cell packaging EVA of claim 1 to 8, it is characterized in that: said EVA is positioned at the backlight side of said solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110361535 CN102361043B (en) | 2011-11-15 | 2011-11-15 | Ethylene vinyl acetate (EVA) for encapsulating solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110361535 CN102361043B (en) | 2011-11-15 | 2011-11-15 | Ethylene vinyl acetate (EVA) for encapsulating solar cell |
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| Publication Number | Publication Date |
|---|---|
| CN102361043A true CN102361043A (en) | 2012-02-22 |
| CN102361043B CN102361043B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110361535 Expired - Fee Related CN102361043B (en) | 2011-11-15 | 2011-11-15 | Ethylene vinyl acetate (EVA) for encapsulating solar cell |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637769A (en) * | 2012-03-16 | 2012-08-15 | 浙江正泰太阳能科技有限公司 | Silicon-based thin-film solar cell packaging method |
| CN102709361A (en) * | 2012-05-08 | 2012-10-03 | 常州天合光能有限公司 | Efficient solar cell assembly and lamination technique thereof |
| CN102800730A (en) * | 2012-07-09 | 2012-11-28 | 友达光电股份有限公司 | Photovoltaic device |
| WO2013134983A1 (en) * | 2012-03-16 | 2013-09-19 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and method for manufacturing same |
| CN103367493A (en) * | 2012-04-01 | 2013-10-23 | 陈志正 | Photovoltaic assembly |
| CN103715285A (en) * | 2012-10-04 | 2014-04-09 | 凸版印刷株式会社 | Solar battery module |
| CN104136520A (en) * | 2012-02-24 | 2014-11-05 | 乐金华奥斯有限公司 | Eva sheet comprising microparticles for solar cell, and method for manufacturing same |
| CN106009521A (en) * | 2016-06-29 | 2016-10-12 | 潘宇 | Production method of rosin modified epoxy resin |
| CN106653906A (en) * | 2017-01-10 | 2017-05-10 | 成都聚立汇信科技有限公司 | Efficient photovoltaic module and lamination technology thereof |
| CN113042973A (en) * | 2020-11-06 | 2021-06-29 | 安徽大恒能源科技有限公司 | Photovoltaic module welding strip flattening process welding method |
| CN113613444A (en) * | 2021-09-14 | 2021-11-05 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
| CN114613871A (en) * | 2022-04-02 | 2022-06-10 | 浙江合特光电有限公司 | Light flexible photovoltaic module |
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| CN104136520A (en) * | 2012-02-24 | 2014-11-05 | 乐金华奥斯有限公司 | Eva sheet comprising microparticles for solar cell, and method for manufacturing same |
| CN104136520B (en) * | 2012-02-24 | 2016-08-24 | 乐金华奥斯有限公司 | Comprise atomic ethylene-vinyl acetate copolymer thin slice used for solar batteries and preparation method thereof |
| TWI459573B (en) * | 2012-03-16 | 2014-11-01 | Au Optronics Corp | Ultraviolet light absorb solar module and fabrictaing method thereof |
| WO2013134983A1 (en) * | 2012-03-16 | 2013-09-19 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and method for manufacturing same |
| CN102637769A (en) * | 2012-03-16 | 2012-08-15 | 浙江正泰太阳能科技有限公司 | Silicon-based thin-film solar cell packaging method |
| CN103367493A (en) * | 2012-04-01 | 2013-10-23 | 陈志正 | Photovoltaic assembly |
| CN102709361A (en) * | 2012-05-08 | 2012-10-03 | 常州天合光能有限公司 | Efficient solar cell assembly and lamination technique thereof |
| CN102800730A (en) * | 2012-07-09 | 2012-11-28 | 友达光电股份有限公司 | Photovoltaic device |
| CN103715285A (en) * | 2012-10-04 | 2014-04-09 | 凸版印刷株式会社 | Solar battery module |
| CN106009521A (en) * | 2016-06-29 | 2016-10-12 | 潘宇 | Production method of rosin modified epoxy resin |
| CN106653906A (en) * | 2017-01-10 | 2017-05-10 | 成都聚立汇信科技有限公司 | Efficient photovoltaic module and lamination technology thereof |
| CN113042973A (en) * | 2020-11-06 | 2021-06-29 | 安徽大恒能源科技有限公司 | Photovoltaic module welding strip flattening process welding method |
| CN113613444A (en) * | 2021-09-14 | 2021-11-05 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
| CN114613871A (en) * | 2022-04-02 | 2022-06-10 | 浙江合特光电有限公司 | Light flexible photovoltaic module |
| CN114613871B (en) * | 2022-04-02 | 2024-03-12 | 浙江合特光电有限公司 | Light flexible photovoltaic module |
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