CN103849064B - Encapsulant compositions used for solar batteries and encapsulation method of producing sheet - Google Patents

Encapsulant compositions used for solar batteries and encapsulation method of producing sheet Download PDF

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Publication number
CN103849064B
CN103849064B CN201310146073.7A CN201310146073A CN103849064B CN 103849064 B CN103849064 B CN 103849064B CN 201310146073 A CN201310146073 A CN 201310146073A CN 103849064 B CN103849064 B CN 103849064B
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weight
crown
parts
metal ion
compound
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CN103849064A (en
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金演秀
郑容周
朱原徹
金吉仲
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Toray Advanced Materials Korea Inc
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/159—Heterocyclic compounds having oxygen in the ring having more than two oxygen atoms in the ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/45—Heterocyclic compounds having sulfur in the ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/48—Selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C08L2203/162—Applications used for films sealable films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The present invention relates to a kind of encapsulant compositions used for solar batteries and encapsulation method of producing sheet, it can suppress, since the module performance that brings of leaking electricity declines, have outstanding insulation performance, can allow solar cell stable for extended periods of time.The composition of the present invention includes ethylene vinyl acetate copolymer resin as main material, and on the basis of the weight of the resin, the peroxide of 0.1 to 5 parts by weight and the metal ion capturing agent of 0.01 to 5 parts by weight that further comprise as core additive and add.

Description

Encapsulant compositions used for solar batteries and encapsulation method of producing sheet
Technical field
The present invention relates to the outstanding encapsulating material used for solar batteries of insulation performance and utilize its encapsulation thin slice manufacturer Method, more particularly to it is a kind of to used as encapsulating material ethylene-vinyl acetate copolymer addition specific structure metal from Sub- agent for capturing, suppresses, since the module performance brought that leaks electricity declines, to have outstanding insulation performance, solar cell can be allowed long-term Keep the encapsulant compositions used for solar batteries of stability and utilize its encapsulation method of producing sheet.
Background technology
Solar cell is free from environmental pollution as green energy resource, can overcome the exhausted crisis of the energy, and nuisanceless, nothing Noise, can infinitely obtain, and will be widely welcomed recently be subject to people.The solar module (module) of solar cell is profit With photoelectric effect, luminous energy is transformed into the semiconductor element of electric energy, is the core element of solar cell.Usually with glass base Plate, encapsulation thin slice (Encapsulation sheet), solar battery cell (cell), encapsulation thin slice and backboard (back Sheet after order) stacks, heating pressurization, crosslinking curing is carried out to encapsulation thin slice, makes various pieces bonding integral, manufacture Solar module.
Most popular encapsulating material is ethylene-vinyl acetate copolymer when manufacturing this solar module, The usual proportion of vinylacetate is 20 to 40wt%.Since solar cell is in outdoor long-time service, module thus be accordingly used in As time go on, under the influence of ultraviolet, heat, moisture etc., structure changes encapsulating material, produces the problems such as changing colour, The efficiency of module is caused to decline.This efficiency declines in order to prevent, added usually in molded package material ultra-violet absorber, Antioxidant or heat stabilizer.Even if but add these additives, the stability of encapsulating material is not still high, efficiency decline also It is to have important topic to be solved.
Usual solar cell, by module array, produces the largest of about system voltage of 1000V to obtain high voltage. Since there are voltage difference between each module of solar cell, it is possible to leak electricity.Due to aging, be contained in the metal of glass from Sub- separate out, is moved to cell surface accumulation, causes the electrical property of unit to decline.This phenomenon is commonly referred to as generating efficiency Decline phenomenon (potential induced degradation;PID one of) the reason for, pass through after setting solar battery cell Normal produced problem.Particularly exposed to rainwater dew when environment, it is easier to leak electricity, allow module performance degradation.
In the authentication test of present solar module, and without the accurate evaluation of decrease in power generation efficiency phenomenon.And In order to solve the problems, such as this, industry generally believe need to develop more preferable unit, module array system and insulation performance it is more preferable Raw material, but so far also without the appropriate solution method of proposition.
The content of the invention
The problem of invention
The invention that the present invention is to solve the above-mentioned problems and proposes, its purpose is to provide a kind of solar cell package Material compositions, to as in the polyethylene-vinyl acetate of solar cell package materials'use, addition can in the prior art Strength catches sodium ion (Na+), calcium ion (Ca+) metal agent for capturing, fundamentally prevent these metal ions from dissociating from glass And the phenomenon of cell surface accumulation is moved to by encapsulating material, prevention unit loss electric energy.
It is a kind of by the package material used for solar batteries with above-mentioned excellent characteristic another object of the present invention is to provide Feed composition come manufacture encapsulation thin slice method.
In addition to the above-mentioned purpose clearly stated, the purpose of the present invention further include can from the present invention technology, with one's own profession The other purposes that industry basic knowledge can be derived.
In order to achieve the above object, the present inventor is based on following judgement, is selected as metal ion scavenger The crown compound of specific structure, with this develops the solar cell that can be used steadily in the long term under the conditions of hot and humid, Complete the present invention.Here, the compatibility of the crown ether of above-mentioned specific structure and polyethylene-vinyl acetate copolymer encapsulating material It is outstanding, do not restricted using upper.Above-mentioned judgement includes the low iron tempered glass (tempered for solar cell Glass) usually (the Na of the disodium containing oxidation2O) 10 to 15%, containing calcium oxide (CaO) 5 to 10%, long-time service or in hot and humid bar Metal ion separate out under part, is possible to be moved to the surface of unit by encapsulating material；Due to the point current potential of module array Difference, produces electric leakage between unit and frame, allow the phenomenon of above-mentioned metal ion movement to accelerate, cause the efficiency of battery to decline, because This is necessary fundamentally to prevent metal ion from moving from glass；The metal ion can promote encapsulating material material ethyl vinyl acetate The hydrolysis of ethene ester molecule, reduces the durability of encapsulating material, reduces the long-time stability of module, therefore strength is caught Effect can be more preferable when encapsulating material is used together for the material of metal ion.
Embodiment
In order to achieve the above object, the present invention provides a kind of encapsulant compositions used for solar batteries, it is characterised in that： Comprising ethylene-vinyl acetate copolymer resin as main material, and on the basis of the weight of the resin, further comprise as Core additive and the peroxide of 0.1 to 5 parts by weight and the metal ion capturing agent of 0.01 to 5 parts by weight added.
In the present invention, the metal ion capturing agent has 15- crown-s 5,6 skeleton of 18- crown-s shown in following structural formula, and And it is to add or merge the crown ether for having alkyl or aryl on the skeleton.
Here, A is selected from O, S, Se, NH.
In the present invention, the metal ion capturing agent is in order to effectively catch the separated sodium ion (Na from glass+) and calcium Ion (Ca2 +), to sodium ion (Na+) by 5 compound of 15- crown-s, to calcium ion (Ca2 +) by 6 compound of 18- crown-s individually or together Work.
In the present invention, silane compound, the purple of the crosslinking coagent and 0.01 to 3 parts by weight no more than 2 parts by weight are further included Ultraviolet absorbers and light stabilizer.
In the present invention, the crown compound is that have 15- crown-s 5, the compound of 6 skeleton of 18- crown-s, for chelated mineral Ion, it includes element be oxygen, nitrogen, selenium or sulphur.
The present invention provides a kind of manufacture method of solar cell package thin slice, it is characterised in that：Encapsulating material is combined Thing is shaped to flake with calendering or t die head rolling methods, and wherein the encapsulant compositions are total to comprising ethylene-vinyl acetate Copolymer resin is as main material, and on the basis of the weight of the resin, further comprise as core additive and add 0.1 To the peroxide of 5 parts by weight and the metal ion capturing agent of 0.01 to 5 parts by weight.
The present invention provides a kind of solar module, it is characterised in that：The module by stacking glass substrate, envelope successively Heating is pressurizeed and is formed after dress thin slice, solar battery cell and backboard；The encapsulation thin slice is by the way that encapsulating material is combined Thing with calendering or t die head rolling methods be shaped to flake and manufacture, wherein the encapsulant compositions include ethyl vinyl acetate Vinyl ester copolymers resin is as main material, and on the basis of the weight of the resin, further comprise as core additive and The peroxide of 0.1 to 5 parts by weight and the metal ion capturing agent of 0.01 to 5 parts by weight of addition.
Invention effect
The present invention encapsulant compositions used for solar batteries insulation performance it is outstanding, due to the addition of peroxide and Crown ether, produces selective reaction with the metal ion from glass separate out, prevents metal ion to be accumulated in cell surface, suppress The hydrolysis of encapsulating material molecule, under conditions of hot and humid environment and potential difference trigger electric leakage, also can effectively protect list Member and encapsulating material, prevent that hydraulic performance decline occurs during solar cell long-time service, and stablize and maintain encapsulating material structure and work( Can, problem of the prior art can be solved.
Embodiment
Here, highly preferred embodiment of the present invention is described in detail.
The encapsulant compositions used for solar batteries that the insulation performance of preferred embodiment is outstanding include passing through Acetyl group carries out appropriate peroxide and metal ion capturing agent the crown ether chemical combination of cross-linking reaction with ethylene-vinyl acetate resin Thing, also has crosslinking coagent, silane coupling agent, ultra-violet absorber, light stabilizer etc..
In general, the metal ion that (dissociation) comes out that dissociates from module glass used for solar batteries has sodium ion (Na+) and calcium ion (Ca2 +).This is because when manufacturing glass used for solar batteries using 10 to 15% oxidation disodium and 5 to The reason of 10% calcium oxide.Due to long-term place in the electric field, ultraviolet and is irradiated repeatedly or exposed to hot and humid environment Under, the metal ion separate out in glass.Under the potential difference effect of solar cell, the metal ion of separate out passes through Electric current continues to move to inside modules.The metal ion is deposited in cell surface, reduces the electrical property of unit by leaking electricity, and promote Into the hydrolysis of encapsulating material molecule.Encapsulating material layer plays connection function between glass and unit.It can be said that in package material The method for isolating metal ion in the bed of material is best.In order to be allowed a choice, ground strength catches this metal ion species, can use a variety of Material, than if any polyamino compound, poly-organic acid compound, poly- sulfhydryl compound, polyether compound etc..These compounds have Alkyl or aryl structure, in the form of chain or annular form exists.But polyamino compound, poly-organic acid compound, poly- sulfhydrylation Compound can promote the hydrolysis of encapsulating material when encapsulating material is used together, and reduce stability, or as flavescence or different The reason for taste, be not suitable for solar cell.In addition, as metal ion capturing agent, using with encapsulating material ethyl vinyl acetate The material that the compatibility of vinyl acetate is outstanding is more preferable.Therefore, the present inventor has found cyclic crown ether by constantly studying Compound will not have an impact to the stability of solar cell constituent material, and show outstanding with ethylene-vinyl acetate Compatibility, there is very high metal ion to catch effect.
In order to select appropriate metal ion capturing agent, the size of metal ion is first considered, select crown ether species to be advisable.Catch Catch sodium ion (Na+) when, it is most suitable using the compound with 5 skeleton of 15- crown-s, catch calcium ion (Ca2 +) when, using with The compound of 6 skeleton of 18- crown-s is most suitable.Following structural formula represents the representative crown compound used in the present invention, but this Invention not limited to this.In addition to following material can be used, moreover it is possible to using has 6 skeleton of 15- crown-s 5 or 18- crown-s, and in bone The material of alkyl or aryl is attached with or merged on frame.
Here, A O, S, Se or NH.
In highly preferred embodiment of the present invention, the crown compound that is used as the metal ion capturing agent, with ethene-vinegar It is 0.01 to 5 parts by weight on the basis of 100 parts by weight of vinyl acetate, preferably 0.1 to 2 parts by weight.If usage amount is less than 0.01 Parts by weight, then can not show and sufficiently catch effect, if being more than 5 parts by weight, the bonding force and economy of encapsulating material are not It is good.
In another most preferred embodiment of the present invention, the organic peroxide for encapsulating thin slice is from 2,2-, the bis- (tert-butyl groups Peroxidating) butane (2,2-di (t-butyl peroxy) butane), t-butylperoxyisopropyl (t-butyl-peroxy Isopropyl), 1,1- bis- (t-amyl peroxy) hexamethylene (1,1-di- (t-amyl peroxy) cyclohexane), tertiary fourth Base peroxidating carbonic acid 2- ethylhexyls (t-butyl peroxy-2-ethylhexyl carbonate), tertiary pentyl list peroxidating Carbonic acid (2- ethyl hexyls) ester (t-amyl (2-ethylhexyl) mono peroxy carbonate), peroxide acetic acid butyl ester (t-butyl peroxy acetate), peroxidating 2 ethyl hexanoic acid tert-pentyl ester (t-amyl peroxy-2- Ethylhexanoate), 2,5- dimethyl -2,5- two (t-butyl peroxy) hexane (2,5-dimethyl-2,5-bis (t- Butyl peroxy) hexane), the peroxidating 2 ethyl hexanoic acid tert-butyl ester (t-butyl peroxy-2-ethylhexanoate) In one or two kinds of compounds for selecting.
On the basis of 100 parts by weight of ethylene-vinyl acetate, the usage amount of the peroxide is 0.1 to 5 parts by weight.
In another embodiment of the present invention, the crosslinking coagent for encapsulating thin slice has triallyl isocyanurate (triallyl isocyanurate), isocyanic acid triallyl (triallyl isocyanate), trimethylolpropane-front three Base acrylate (trimethylolpropan-tri-methacrylate) etc., dosage are to be advisable within 2 parts by weight.
It is with vinyl, acryloxy, methyl as the silane coupling agent that above-mentioned bonding additives use in the present invention The compound of the hydrolyzable groups such as the unsaturated groups such as acryloxy, amido, epoxy group and alkoxy.As silane coupling agent, Specifically there are vinyl triethoxyl siloxanes, vinyl trimethoxy siloxanes, γ-methacryloxypropyl triethoxy Siloxanes etc., dosage are advisable for 0.01 to 3 parts by weight.
In another most preferred embodiment of the present invention, encapsulation thin slice can add other various additives on demand.It is addible Various additives include light stabilizer, ultra-violet absorber, antioxidant etc..
In another embodiment of the present invention, metal ion capturing agent can make with ethylene-vinyl acetate and as crosslinking agent The additives such as organic peroxide, crosslinking coagent, silane coupling agent, antioxidant, ultra-violet absorber and light stabilizer After together matching, thin slice is shaped in a manner of rolling, or individually come into operation in molding sheet.
In another embodiment of the present invention, encapsulation thin slice used for solar batteries is the encapsulating material group by using the present invention Compound, is rolled with t die heads or calendering process is processed into 200 to 1000mm thickness to manufacture.
In conclusion the encapsulant compositions used for solar batteries of the present invention, by selecting appropriate crown compound, The metal ion to dissociate from glass is caught, can not only prevent it to be deposited in cell surface, be also prevented from the water of encapsulating material Solution is decomposed.The thin slice that is manufactured by the encapsulant compositions and it can be maintained a long-term stability using its solar module Property.
In the following, the embodiment of the present invention and comparative example are specifically described.But the scope of the present invention is not only restricted to these Embodiment.
Embodiment 1
With ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) (Melt Flow Rate) 15g/10 minutes) on the basis of 100 parts by weight, 2,5- of proportioning dimethyl -2,5-, bis- (t-butyl peroxy) hexane (Aldrich is manufactured, Luperox101) 1.0 parts by weight, (the Japan's chemical conversion of crosslinking coagent --- three propylene triallyl isocyanurates Company manufactures, TAIC) 0.8 parts by weight, ultra-violet absorber --- 2- hydroxyl 4- octyloxybenzophenone (sumitomo chemical company systems Make, sumisorb130) 0.1 parts by weight and 15- crown-s 5 (Aldrich manufacture) 1 parts by weight, 6 (Aldrich of 18- crown-s Manufacture) 1 parts by weight, by double extruders of diameter 104mm, are rolled with less than 110 DEG C of temperature, have manufactured 500 μ m-thicks Thin slice.
Embodiment 2
With ethylene-vinyl acetate copolymer (15g/10 points of ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) Clock) on the basis of 100 parts by weight, 2,5- of proportioning dimethyl -2,5-, bis- (t-butyl peroxy) hexane (Aldrich manufactures, Luperox101) 1.0 parts by weight, crosslinking coagent --- three propylene triallyl isocyanurates (Japan's chemical conversion company system is made, TAIC) 0.8 parts by weight, ultra-violet absorber --- 2- hydroxyl 4- octyloxybenzophenones (sumitomo chemical company, Sumisorb130) 0.1 parts by weight and 15- crown-s 5 (Aldrich manufacture) 1 parts by weight, pass through double extrusions of diameter 104mm Machine, is rolled with 110 DEG C of temperature below, has manufactured the thin slice of 500 μ m-thicks.
Embodiment 3
With ethylene-vinyl acetate copolymer (15g/10 points of ethylene-vinyl acetate content 28wt%, melt flow rate (MFR) Clock) on the basis of 100 parts by weight, 2,5- of proportioning dimethyl -2,5-, bis- (t-butyl peroxy) hexane (Aldrich manufactures, Luperox101) 1.0 parts by weight, crosslinking coagent --- triallyl isocyanurate (Japan's chemical conversion company system is made, TAIC) 0.8 weight Measure part, ultra-violet absorber --- 2- hydroxyl 4- octyloxybenzophenones (sumitomo chemical company, sumisorb130) 0.1 weight Part and 18- crown-s 6 (Aldrich manufacture) 1 parts by weight, by double extruders of diameter 104mm, with the temperature below 110 DEG C Rolled, manufactured the thin slice of 500 μ m-thicks.
Comparative example 1
In addition to without using crown compound, other proportionings are same as Example 1, manufacture ethylene-vinyl acetate envelope After filling thin slice, solar module has been manufactured.
Experimental example 1
The encapsulation thin slice and low iron tempered glass (3.2T, AGC company) manufactured using the various embodiments described above and comparative example, the back of the body Plate, mc-Si units, by vacuum press (expressive machine), with 150 DEG C of progress hot pressing in 20 minutes, manufacture The module of Unit 54.
Under 65 DEG C, 85% relative humidities, to solar module glass on be stained with one layer of water, connection -1000V electricity After pressing a period of time, detection electric output change.The results are shown in Table 1 for it.
【Table 1】
Time (h) Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1
0 208 208 208 208
50 204 202 200 170
100 200 195 190 110
Experimental example 2
The solar module that will be tested in experimental example 1, places, passes through for a long time under 85 DEG C, 85% damp condition It is divided color meter (Spectro Color meter, SE2000, Nippon Denshoku Industries Co., Ltd. (Nippon Denshoku)) Detect the discoloration of encapsulating material.The results are shown in Table 2.
【Table 2】
Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1
DYI(2000h) 0.2 0.2 0.4 15
It is of the invention to use crown ether by the result of above-mentioned each experimental example) the insulating properties encapsulating material of compound The movement of the metal ion from glass can fundamentally be isolated, can not only prevent the solar cell as caused by leaky The problem of module performance declines, moreover it is possible to allow the stability of encapsulating material to greatly improve.

Claims (7)

  1. A kind of 1. encapsulant compositions used for solar batteries, it is characterised in that：Include ethylene-vinyl acetate copolymer resin As main material, and on the basis of the weight of the resin, 0.1 to 5 weight that further comprises as core additive and add The peroxide of part and the metal ion capturing agent of 0.01 to 5 parts by weight, wherein the metal ion capturing agent is crown ether chemical combination Thing.
  2. 2. encapsulant compositions used for solar batteries according to claim 1, it is characterised in that：
    The metal ion capturing agent has 15- crown-s 5,6 skeleton of 18- crown-s shown in following structural formula, and is in the skeleton Upper additional or fusion has the crown ether of alkyl or aryl,
    Here, A is selected from O, S, Se, NH.
  3. 3. encapsulant compositions used for solar batteries according to claim 1 or 2, it is characterised in that：
    The metal ion capturing agent in order to effectively catch from glass dissociate sodium ion Na+With calcium ion Ca2 +, to sodium ion Na+By 5 compound of 15- crown-s, to calcium ion Ca2 +Worked individually or together by 6 compound of 18- crown-s.
  4. 4. encapsulant compositions used for solar batteries according to claim 1, it is characterised in that：
    Further include silane compound, ultra-violet absorber and the light of the crosslinking coagent and 0.01 to 3 parts by weight no more than 2 parts by weight Stabilizer.
  5. 5. encapsulant compositions used for solar batteries according to claim 1 or 2, it is characterised in that：
    The crown compound is that have 15- crown-s 5, the compound of 6 skeleton of 18- crown-s, for chelated metal ions, it includes Element is oxygen, nitrogen, selenium or sulphur.
  6. A kind of 6. manufacture method of solar cell package thin slice, it is characterised in that：By encapsulant compositions with calendering or t moulds Head rolling method is shaped to flake, and wherein the encapsulant compositions include ethylene-vinyl acetate copolymer resin conduct Main material, and on the basis of the weight of the resin, 0.1 to 5 parts by weight for further comprising as core additive and adding The metal ion capturing agent of peroxide and 0.01 to 5 parts by weight, wherein the metal ion capturing agent is crown compound.
  7. A kind of 7. solar module, it is characterised in that：
    The module after stacking glass substrate, encapsulation thin slice, solar battery cell and backboard successively by heating pressurization and formation； The encapsulation thin slice is manufactured by the way that encapsulant compositions are shaped to flake with calendering or t die head rolling methods, Wherein the encapsulant compositions include ethylene-vinyl acetate copolymer resin as main material, and with the resin On the basis of weight, the peroxide and 0.01 to 5 parts by weight of 0.1 to 5 parts by weight for further comprising as core additive and adding Metal ion capturing agent, wherein the metal ion capturing agent is crown compound.
CN201310146073.7A 2012-12-03 2013-04-24 Encapsulant compositions used for solar batteries and encapsulation method of producing sheet Expired - Fee Related CN103849064B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105542671B (en) * 2015-12-18 2018-09-21 广州市白云化工实业有限公司 Photovoltaic module packaging adhesive film
KR102311985B1 (en) * 2016-04-05 2021-10-14 도아고세이가부시키가이샤 Ion scavenger for solar cell, encapsulant composition for solar cell comprising same, and solar cell module
US10931229B2 (en) * 2018-12-13 2021-02-23 Industrial Technology Research Institute Solar cell testing system and testing method thereof
CN110922970A (en) * 2019-11-29 2020-03-27 南京纳鑫新材料有限公司 PERC battery back polishing additive and technology
CN116496703A (en) * 2023-04-25 2023-07-28 浙江祥隆科技有限公司 EVA photovoltaic packaging adhesive film and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1396944A (en) * 2000-12-01 2003-02-12 东丽株式会社 Polyester composition, films made thereof and process for producing the composition
CN101029149A (en) * 2007-04-02 2007-09-05 广东华南精细化工研究院有限公司 Efficient heat-resisting polyolefine composite light stabilizer, its production and use
CN102214803A (en) * 2011-05-20 2011-10-12 电子科技大学 Packaging method of photoelectronic device
KR20120039868A (en) * 2010-10-18 2012-04-26 도레이첨단소재 주식회사 Encapsulation composition for a solarcell module having an improved durability and the encapsulation sheet using the same
CN102504407A (en) * 2011-10-14 2012-06-20 北京太阳能电力研究院有限公司 Polypropylene composition for solar battery and preparation method thereof
CN102544152A (en) * 2011-12-31 2012-07-04 升信新材（北京）科技有限公司 Solar battery back panel and preparation method therefor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1396944A (en) * 2000-12-01 2003-02-12 东丽株式会社 Polyester composition, films made thereof and process for producing the composition
CN101029149A (en) * 2007-04-02 2007-09-05 广东华南精细化工研究院有限公司 Efficient heat-resisting polyolefine composite light stabilizer, its production and use
KR20120039868A (en) * 2010-10-18 2012-04-26 도레이첨단소재 주식회사 Encapsulation composition for a solarcell module having an improved durability and the encapsulation sheet using the same
KR101268278B1 (en) * 2010-10-18 2013-06-04 도레이첨단소재 주식회사 Encapsulation composition for a solarcell module having an improved durability and the encapsulation sheet using the same
CN102214803A (en) * 2011-05-20 2011-10-12 电子科技大学 Packaging method of photoelectronic device
CN102504407A (en) * 2011-10-14 2012-06-20 北京太阳能电力研究院有限公司 Polypropylene composition for solar battery and preparation method thereof
CN102544152A (en) * 2011-12-31 2012-07-04 升信新材（北京）科技有限公司 Solar battery back panel and preparation method therefor

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