WO2018042643A1 - Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire - Google Patents

Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire Download PDF

Info

Publication number
WO2018042643A1
WO2018042643A1 PCT/JP2016/075908 JP2016075908W WO2018042643A1 WO 2018042643 A1 WO2018042643 A1 WO 2018042643A1 JP 2016075908 W JP2016075908 W JP 2016075908W WO 2018042643 A1 WO2018042643 A1 WO 2018042643A1
Authority
WO
WIPO (PCT)
Prior art keywords
solar cell
sealing material
light
composition
cell element
Prior art date
Application number
PCT/JP2016/075908
Other languages
English (en)
Japanese (ja)
Inventor
琢 澤木
野尻　剛
悟史 黒澤
祐巳 乾
Original Assignee
日立化成株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日立化成株式会社 filed Critical 日立化成株式会社
Priority to PCT/JP2016/075908 priority Critical patent/WO2018042643A1/fr
Publication of WO2018042643A1 publication Critical patent/WO2018042643A1/fr

Links

Images

Classifications

    • 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
    • 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
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/055—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
    • 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a composition for forming a sealing material, a sealing material, and a solar cell module.
  • the solar cell module includes a solar cell element and wiring for converting solar energy into electric power. And the solar cell module is comprised by the some solar cell element being connected by the said wiring, for example.
  • the solar cell module has a structure in which a light receiving surface protective material, a first sealing material, a solar cell element, a second sealing material, and a back surface protective material are arranged in this order from the light receiving surface side.
  • the element and the wiring are sealed with a first sealing material and a second sealing material.
  • Patent Document 1 discloses a solar cell light in which scattering particles having a higher refractive index than that of the matrix resin are dispersed in the matrix resin, the transmittance is 70% or more, and the haze value is 58 to 90%.
  • a scattering film is described.
  • the sunlight reflected by the surface of the solar cell element is scattered inside the light scattering film, and its traveling direction is directed again to the solar cell element. It becomes possible. Due to such an action, sunlight incident on the solar cell module is confined inside the solar cell module, thereby improving the utilization efficiency of sunlight and improving the conversion efficiency from light to electric power.
  • the light scattering film for solar cell of Patent Document 1 is an independent layer having a thickness of several ⁇ m formed by coating, and does not give a light scattering function to the sealing material itself having a thickness of usually 100 ⁇ m or more. Moreover, the composition for sealing material formation which can form the sealing material used for the solar cell module excellent in electric power generation efficiency is calculated
  • An object of the present invention is to provide a sealing material forming composition and a sealing material used when forming a solar cell module excellent in power generation efficiency, and a solar cell module excellent in power generation efficiency.
  • the present inventors have used a sealing material forming composition in which a haze and a total light transmittance are within a predetermined range when used as a sealing material, thereby improving power generation efficiency. I found that it can be improved. Furthermore, as a result of intensive studies, the present inventors have combined a sealing material formed using the sealing material forming composition with a solar cell element having a texture structure on the light receiving surface, and combined with the solar cell. It was found that the power generation efficiency can be further improved by using a module.
  • Patent Document 1 described above describes that the conversion efficiency is rather deteriorated when a texture structure is provided on the light receiving surface of the solar cell element. In the solar cell module according to one embodiment of the present invention, It is possible to further increase the efficiency of power generation after providing a texture structure on the light receiving surface of the battery element.
  • the present invention includes the following embodiments. ⁇ 1> When a dispersion medium resin and a light scatterer that scatters light in the dispersion medium resin are contained and used as a sealing material, the haze is 30% or more and the total light transmittance is 85%.
  • ⁇ 2> The composition for forming a sealing material according to ⁇ 1>, wherein the light scatterer includes organic particles.
  • ⁇ 3> The composition for forming a sealing material according to ⁇ 1> or ⁇ 2>, wherein the light scatterer has a refractive index of 1.50 to 1.65.
  • composition for forming a sealing material according to any one of ⁇ 1> to ⁇ 3>, wherein the light scatterer has an average particle diameter of 0.5 ⁇ m to 10 ⁇ m.
  • a solar cell element that converts received sunlight into electric power, an electrode that is connected to the solar cell element and extracts electric power generated in the solar cell element, and is provided on the light receiving surface side of the solar cell element.
  • a solar cell module comprising: a first sealing material that is the sealing material according to ⁇ 6>.
  • the solar cell element includes a second sealing material on a back surface opposite to the light receiving surface, and the solar cell element is sealed with the first sealing material and the second sealing material.
  • the first sealing material has a portion that is in contact with the solar cell element and the second sealing material, and is in contact with the second sealing material in the first sealing material.
  • the solar cell module as described in ⁇ 7> or ⁇ 8> in which the part which contains the said light-scattering body.
  • the solar cell module as described in any one of these.
  • the present invention it is possible to provide a sealing material forming composition and a sealing material used when forming a solar cell module having excellent power generation efficiency, and a solar cell module having excellent power generation efficiency.
  • a numerical range indicated by using “to” indicates a range including the numerical values described before and after “to” as the minimum value and the maximum value, respectively.
  • the upper limit value or the lower limit value described in one numerical range may be replaced with the upper limit value or the lower limit value of another numerical range.
  • the upper limit value or the lower limit value of the numerical range may be replaced with the values shown in the examples.
  • the content and content of each component in the composition are such that when there are a plurality of substances corresponding to each component in the composition, the plurality of kinds present in the composition unless otherwise specified. It means the total content and content of substances.
  • the particle diameter of each component in the composition is a mixture of the plurality of types of particles present in the composition unless there is a specific indication when there are a plurality of types of particles corresponding to each component in the composition. Means the value of.
  • laminate indicates that layers are stacked, and two or more layers may be combined, or two or more layers may be detachable.
  • (meth) acryl means at least one of acryl and methacryl
  • (meth) acrylate” means at least one of acrylate and methacrylate.
  • transparent means that the transmittance of light having a wavelength of 400 nm to 800 nm at an optical path length of 1 cm is 90% or more.
  • reffractive index refers to a value measured by the Becke line detection method under the conditions of 25 ° C. and wavelength of 588 nm.
  • the composition for forming a sealing material according to the present embodiment includes a dispersion medium resin and a light scatterer that scatters light in the dispersion medium resin.
  • the haze is 30% or more.
  • the total light transmittance is 85% or more.
  • the composition for forming a sealing material of the present embodiment is, for example, a sealing material that constitutes a solar cell module, more specifically, a sealing material that is positioned on the light receiving surface side of a solar cell element that constitutes the solar cell module. It is used for producing a stopper (first sealing material described later).
  • the measurement of haze and total light transmittance is in Examples described later. It is performed by a method based on JIS K7136 (FY2000) using a sealing material having a thickness of 400 ⁇ m produced by the described method.
  • the composition for forming a sealing material contains a dispersion medium resin.
  • the type of the dispersion medium resin is not particularly limited. From the viewpoint of improving power generation efficiency, a highly transparent resin is preferable.
  • the dispersion medium resin include ethylene-unsaturated carboxylic acid copolymers (ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, etc.), and one carboxyl group of the ethylene-unsaturated carboxylic acid copolymer.
  • ethylene-unsaturated carboxylic acid ester copolymer ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-methyl methacrylate copolymer, ethylene-isobutyl Acrylate copolymer, ethylene-n-butyl acrylate copolymer, etc.
  • ethylene-unsaturated carboxylic acid ester-unsaturated carboxylic acid copolymer ethylene-isobutyl acrylate-methacrylic acid copolymer, ethylene-n-butyl acrylate) -Methacrylic acid copolymer, etc.
  • ethylene- Ionomer in which some or all of the carboxyl groups of the saturated carboxylic acid ester-unsaturated carboxylic acid copolymer are neutralized with metal ethylene such as ethylene-polar monomer copolymer (ethylene-vinyl acetate copolymer (EV).
  • ethylene-polar monomer copolymers and polyvinyl acetal resins are preferable, and ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymer (EVA) and polyvinyl butyral (PVB resin) are more preferable.
  • EVA ethylene-vinyl acetate copolymer
  • PVB resin polyvinyl butyral
  • the refractive index (refractive index at 25 ° C.) of the dispersion medium resin is preferably smaller than the refractive index of the light scatterer. For example, it is preferably 1.40 to 1.60, and more preferably 1.45 to 1.55. Since the composition for forming a sealing material contains a light scatterer having a refractive index of 1.40 to 1.60, an appropriate refractive index difference is generated between the dispersion medium resin and reflection, refraction, etc. Tends to occur.
  • the composition for forming a sealing material contains a light scatterer.
  • the light scatterer includes light incident on the sealing material, solar cell elements and light-receiving surface electrodes of the solar cell module. Light reflected on the surface is dispersed in the sealing material. Thereby, the incident light to the light-receiving surface of a solar cell element increases, and electric power generation efficiency improves.
  • the material constituting the light scatterer is preferably a material that is transparent and has a refractive index different from that of the dispersion medium resin.
  • the material constituting the light scatterer is preferably an organic material from the viewpoint of transparency, and the light scatterer is preferably organic particles from the viewpoint of transparency and light scattering.
  • a light scatterer may be used individually by 1 type, and may use 2 or more types together.
  • the refractive index of the light scatterer (refractive index at 25 ° C.) is preferably higher than the refractive index of the dispersion medium resin. For example, it is preferably 1.50 to 1.65, more preferably 1.51 to 1.65, and still more preferably 1.52 to 1.65. Since the composition for forming a sealing material contains a light scatterer having a refractive index of 1.50 to 1.65, an appropriate refractive index difference occurs between the dispersion medium resin and reflection, refraction, etc. at the interface. Tends to occur.
  • the average particle size of the light scatterer is preferably 0.5 ⁇ m to 10 ⁇ m, more preferably 1.0 ⁇ m to 5.0 ⁇ m, still more preferably 1.0 ⁇ m to 3.0 ⁇ m. It is particularly preferably 0 ⁇ m to 1.9 ⁇ m.
  • the particle size distribution of the light scatterer preferably has a maximum value in the range of 0.5 ⁇ m to 10 ⁇ m.
  • the light scatterer is preferably spherical.
  • the light scatterer is not limited to a perfect spherical shape, and may be an anisotropic shape such as an elliptical cross section (eg, egg shape), needle shape, plate shape, or the like.
  • the length of the light scatterer in the long axis direction is preferably 0.5 ⁇ m to 10 ⁇ m.
  • the average particle diameter of the light scatterer is a value calculated by observing 20,000 particles or 100,000 particles using a flow particle image analyzer (FPIA-3000).
  • the content of the light scatterer in the composition for forming a sealing material is not particularly limited as long as the haze when used as the sealing material is 30% or more and the total light transmittance is 85% or more.
  • the content of the light scatterer is, for example, preferably 0.1 to 20 parts by mass, more preferably 0.2 to 10 parts by mass with respect to 100 parts by mass of the dispersion medium resin.
  • the amount is more preferably 1 to 10 parts by mass, and particularly preferably 1.5 to 6 parts by mass.
  • the content of the light scatterer is 0.1 part by mass or more, the refraction of the reflected light from the solar cell element and the light scattering effect tend to be higher, and the content of the light scatterer is 20 parts by mass or less.
  • the sealing material tends to be excellent in crosslinking properties.
  • the light scatterer is preferably organic particles from the viewpoint of transparency and light scattering, and for example, crosslinked polymer particles can be used.
  • the crosslinked polymer particles are easy to obtain desired particle diameter and refractive index, and are suitable as a light scatterer.
  • crosslinked polymer particles for example, seed particles in an emulsion containing a monomer such as a (meth) acrylic monomer, a styrene monomer, and other monomers described below, and a crosslinking agent, a crosslinking aid, etc., if necessary. After swelling, particles formed by seed polymerization of the monomer may be used.
  • the seed particles are not particularly limited, and examples thereof include vinyl resin particles such as acrylic particles and styrene particles. Among these, acrylic particles are preferable.
  • Acrylic particles are particles obtained by polymerization of (meth) acrylic monomers.
  • (Meth) acrylic monomers include (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (Meth) acrylate, t-butyl (meth) acrylate, n-octyl (meth) acrylate, dodecyl (meth) acrylate, stearyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, diethylamino Examples include ethyl (meth) acrylate. These monomers may be used individually by 1 type, and may use 2 or more types together. Of these, methyl (meth) acryl
  • the acrylic particles may be particles obtained by copolymerization of (meth) acrylic monomers with other monomers.
  • examples of other monomers include glycol esters of (meth) acrylic acid such as ethylene glycol mono (meth) acrylate and polyethylene glycol mono (meth) acrylate; alkyl vinyl ethers such as methyl vinyl ether and ethyl vinyl ether; vinyl acetate and butyric acid Vinyl esters such as vinyl; N-alkyl-substituted (meth) acrylamides such as N-methylacrylamide, N-ethylacrylamide, N-methylmethacrylamide and N-ethylmethacrylamide; nitriles such as acrylonitrile and methacrylonitrile; And polyfunctional monomers such as divinylbenzene, ethylene glycol di (meth) acrylate, butanediol di (meth) acrylate, and trimethylolpropane tri (meth) acrylate. These other monomers may be
  • Styrenic particles are particles obtained by polymerization of styrene monomers such as styrene, p-methylstyrene, p-chlorostyrene, chloromethylstyrene, ⁇ -methylstyrene, and the like. These styrenic monomers may be used alone or in combination of two or more.
  • the styrene particle may be a particle obtained by copolymerization of a styrene monomer and another monomer.
  • examples of other monomers include glycol esters of (meth) acrylic acid such as ethylene glycol mono (meth) acrylate and polyethylene glycol mono (meth) acrylate; alkyl vinyl ethers such as methyl vinyl ether and ethyl vinyl ether; vinyl acetate and butyric acid Vinyl esters such as vinyl; N-alkyl substituted (meth) acrylamides such as N-methylacrylamide, N-ethylacrylamide, N-methylmethacrylamide, N-ethylmethacrylamide; nitriles such as acrylonitrile and methacrylonitrile; Multifunctional monomers such as divinylbenzene, ethylene glycol di (meth) acrylate, butanediol di (meth) acrylate, trimethylolpropane tri (meth) acrylate; (me
  • the seed particles are synthesized by a conventionally known method.
  • the solvent such as water
  • chain transfer agent such as octanethiol
  • polymerization initiator such as potassium peroxodisulfate, etc.
  • the light scatterer preferably contains a phosphor.
  • the phosphor absorbs sunlight, emits light having a wavelength different from that of sunlight, and the light scattering effect is obtained by scattering the light emitted from the light in all directions. .
  • the light of the wavelength which does not contribute to the electric power generation of a solar cell element can be converted into the wavelength which contributes to an electric power generation, and there exists a tendency for electric power generation efficiency to improve further.
  • the phosphor preferably has an excitation wavelength of 250 nm to 600 nm and an emission wavelength of 450 nm to 1100 nm.
  • the phosphor is not particularly limited, and examples thereof include organic phosphors, inorganic phosphors, transition metal complexes, rare earth metal complexes, etc.
  • organic phosphors, transition metal complexes, rare earth metal complexes, and the like are preferable.
  • a fluorescent substance may be used individually by 1 type, and may use 2 or more types together.
  • Organic phosphors include naphthalene, anthracene, perylene, pyrene, porphyrin, carbazole, quinoline, thiazole, oxazole, thiadiazole, diazole, triazole, alloxazine, cyanine, and pyridine.
  • organic phosphors having a thiadiazole skeleton and a triazole skeleton are particularly preferable as the phosphor.
  • thiadiazole skeleton and triazole skeleton organic phosphors include 4,7-bis (dibenzofuran) -2- (6-bromohexyl) benzotriazole, 4,7-diphenyl-2-isobutyl-2H-benzotriazole, 4,7-bis (4-isobutyloxyphenyl) -2-isobutyl-2H-benzotriazole, 4,7-bis (4-t-butylphenyl) -2,1,3-benzothiadiazole, 4,7-bis (4-isobutyloxyphenyl) -2,1,3-benzothiadiazole and the like.
  • the composition for forming a sealing material is an ultraviolet absorber, a light stabilizer, a plasticizer, a flame retardant, a crosslinking agent, a crosslinking aid, an adhesion aid, an antioxidant, and a coloring agent.
  • You may contain additives, such as an agent and a dispersing agent, as another component.
  • UV absorbers examples include benzotriazole UV absorbers, hydroxyphenyltriazine UV absorbers, benzophenone UV absorbers, and benzoate UV absorbers.
  • An ultraviolet absorber may be used individually by 1 type, and may use 2 or more types together.
  • benzotriazole ultraviolet absorber examples include 2- (2-hydroxy-5-tert-butylphenyl) -2H-benzotriazole (TINUVIN PS, BASF), benzenepropanoic acid and 3- (2H-benzotriazole- 2-yl) -5- (1,1-dimethylethyl) -4-hydroxy (C7-9 side chain and linear alkyl) ester compound (TINUVIN 384-2, BASF), octyl-3- [3-t -Butyl-4-hydroxy-5- (5-chloro-2H-benzotriazol-2-yl) phenyl] propionate and 2-ethylhexyl-3- [3-tert-butyl-4-hydroxy-5- (5-chloro -2H-benzotriazol-2-yl) phenyl] propionate (TINUVIN109, BASF ), 2- (2H-benzotriazol-2-yl) -4,6-bis (1-methyl-1-phenylethyl
  • Hydroxyphenyl triazine-based ultraviolet absorbers include 2- [4,6-bis (2,4-dimethylphenyl) -1,3,5-triazin-2-yl] -5-hydroxyphenyl and [(C10-C16 Reaction product of (mainly C12-C13) alkyloxy) methyl] oxirane (TINUVIN400, BASF), 2- (2,4-dihydroxyphenyl) -4,6-bis- (2,4-dimethylphenyl) -1 , 3,5-triazine and (2-ethylhexyl) -glycidic acid ester reaction product (TINUVIN405, BASF), 2,4-bis (2-hydroxy-4-butoxyphenyl) -6- (2,4- Dibutoxyphenyl) -1,3,5-triazine (TINUVIN460, BASF), 2- (4,6-diphenyl-1 3,5-triazin-2-yl) -5-[(hexyl) oxy] -phenol (TINUVIN
  • benzophenone ultraviolet absorber examples include 2-hydroxy-4-n-octyloxybenzophenone (ADK STAB 1413, ADEKA Corporation).
  • benzoate ultraviolet absorber examples include 2,4-di-t-butylphenyl-3,5-di-t-butyl-4-hydroxybenzoate (TINUVIN120, BASF).
  • the content of the ultraviolet absorber is, for example, 0.1 mass relative to 100 parts by mass of the dispersion medium resin contained in the composition for forming an encapsulating material. Part or less, preferably 0.05 part by weight or less.
  • Examples of the light stabilizer include hindered amine light stabilizers.
  • a light stabilizer may be used individually by 1 type and may use 2 or more types together.
  • Specific examples of the light stabilizer include a polymer of dimethyl succinate and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol (TINUVIN 622, BASF), dimethyl succinate and 4-hydroxy- Polymer of 2,2,6,6-tetramethyl-1-piperidineethanol and N, N ′, N ′′, N ′ ′′-tetrakis- [4,6-bis- (butyl- (N-methyl -2,2,6,6-tetramethylpiperidin-4-yl) amino) -triazin-2-yl] -4,7-diazadecane-1,10-diamine (TINUVIN119, BASF), dibutylamine, 1,3-triazine, N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) -1,6-hexam
  • the content of the light stabilizer is, for example, 0.01 with respect to 100 parts by mass of the dispersion medium resin contained in the composition for forming a sealing material.
  • the mass is preferably 1 part by mass, more preferably 0.05 part by mass to 0.2 part by mass.
  • Plasticizers include esters of polybasic acids (dioctyl phthalate, dihexyl adipate, triethylene glycol di-2-ethyl butyrate, butyl sebacate, tetraethylene glycol diheptanoate, triethylene glycol dipelargonate, etc.) or polyvalent Examples include alcohol.
  • a plasticizer may be used individually by 1 type and may use 2 or more types together.
  • the content of the plasticizer is, for example, 0.001 part by mass to 100 parts by mass of the dispersion medium resin contained in the encapsulant-forming composition.
  • the amount is preferably 1 part by mass, more preferably 0.01 part by mass to 0.1 part by mass.
  • flame retardants include organic flame retardants and inorganic flame retardants.
  • Organic flame retardants include chlorinated paraffin, chlorinated polyethylene, hexachloroendomethylenetetrahydrophthalic acid, perchloropentacyclodecane, chlorine-containing compounds such as tetrachlorophthalic anhydride, tris (2,3-dibromopropyl) isocyanurate, etc.
  • a monomer or polymer having an aromatic ring and no halogen atom directly bonded to the aromatic ring 1,1,2,2-tetrabromoethane, 1,4-dibromobutane, 1,3-dibromobutane,
  • examples thereof include bromine compounds having no aromatic ring such as 1,5-dibromopentane, ethyl ⁇ -bromobutyrate and 1,2,5,6,9,10-hexabromocyclodecane.
  • the inorganic flame retardant include inorganic hydroxide salts such as aluminum hydroxide and magnesium hydroxide, phosphorus oxides such as ammonium phosphate and zinc phosphate, and red phosphorus.
  • a flame retardant may be used individually by 1 type and may use 2 or more types together.
  • the content of the flame retardant is, for example, 0.001 part by mass to 100 parts by mass of the dispersion medium resin contained in the composition for forming a sealing material.
  • the amount is preferably 1 part by mass, more preferably 0.01 part by mass to 0.1 part by mass.
  • crosslinking agent examples include t-butyl peroxyisopropyl carbonate, t-butyl peroxy-2-ethylhexyl carbonate, t-butyl peroxyacetate, t-butyl peroxybenzoate, dicumyl peroxide, 2,5-dimethyl-2 , 5-di (t-butylperoxy) hexane, di-t-butylperoxide, 2,5-dimethyl-2,5-bis (t-butylperoxy) hexyne-3, 1,1-di (t -Butylperoxy) -3,3,5-trimethylcyclohexane, 1,1-di (t-butylperoxy) cyclohexane, methyl ethyl ketone peroxide, 2,5-dimethylhexyl-2,5-diperoxybenzoate, t -Butyl hydroperoxide, p-menthane hydroperoxide, benzoyl
  • the content of the cross-linking agent is, for example, 0.001 part by mass to 100 parts by mass of the dispersion medium resin contained in the encapsulant-forming composition.
  • the amount is preferably 1 part by mass, more preferably 0.01 part by mass to 0.5 part by mass.
  • crosslinking aids examples include polyallyl compounds such as triallyl isocyanurate, triallyl cyanurate, diallyl phthalate, diallyl fumarate and diallyl maleate, poly ( And (meth) acryloxy compounds and divinylbenzene.
  • a crosslinking aid may be used individually by 1 type, and may use 2 or more types together.
  • the content of the crosslinking aid is, for example, 0.001 mass with respect to 100 parts by mass of the dispersion medium resin contained in the composition for forming a sealing material.
  • Part to 1 part by weight preferably 0.01 part to 0.5 part by weight.
  • Adhesion aids include 3-chloropropyltrimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris (2-methoxyethoxy) silane, 3-methacryloxypropyltrimethoxysilane, 2- (3 , 4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, vinyltriacetoxysilane, 3-mercaptopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, N-2- (aminoethyl) Examples include silane coupling agents such as -3-aminopropyltrimethoxysilane and 3-acryloxypropyltrimethoxysilane.
  • One type of adhesion assistant may be used alone, or two or more types may be used in combination.
  • the content of the adhesion assistant is, for example, 0.001 mass relative to 100 parts by mass of the dispersion medium resin contained in the composition for forming a sealing material.
  • Part to 1 part by weight preferably 0.01 part to 0.5 part by weight.
  • Antioxidants include 2,6-di-t-butyl-p-cresol, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,6-di-t- Butyl-4-ethylphenol, 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2,2′-methylenebis (4-ethyl-6-tert-butylphenol), 4,4′-methylenebis ( 2,6-di-t-butylphenol), 2,2′-methylenebis [6- (1-methylcyclohexyl) -p-cresol], bis [3,3-bis (4-hydroxy-3-t-butylphenyl) ) Butyric acid] glycol ester, 4,4′-butylidenebis (6-t-butyl-m-cresol), 2,2′-ethylidenebis (4-sec-butyl-6-t-) Tilphenol), 2,2′-ethylidenebis (4,6-
  • the content of the antioxidant is, for example, 0.001 mass relative to 100 parts by mass of the dispersion medium resin contained in the composition for forming a sealing material.
  • Part to 1 part by weight preferably 0.01 part to 0.5 part by weight.
  • the encapsulant-forming composition preferably has a haze of 60% or more, more preferably 80% or more, and 90% or more when used as the encapsulant. Is more preferable, and it is especially preferable that it is 91% or more.
  • the composition for forming a sealing material is preferably 86% or more, more preferably 87% or more, when used as a sealing material, from the viewpoint of further improving power generation efficiency. More preferably, it is 88% or more.
  • the solar cell module of the present embodiment includes a solar cell element that converts received sunlight into electric power, an electrode that is connected to the solar cell element and extracts electric power generated in the solar cell element, and a light receiving surface side of the solar cell element. And a first sealing material that is a sealing material that is formed using the composition for forming a sealing material of the present embodiment. Moreover, it is preferable that the solar cell module of this embodiment has a texture structure in the solar cell light receiving surface side. Moreover, the solar cell module of the present embodiment includes a second sealing material on the back side opposite to the light receiving surface of the solar cell element, and the solar cell element includes a first sealing material and a second sealing material.
  • the first sealing material has a portion that is in contact with the solar cell element and the second sealing material, and a portion that is in contact with the second sealing material in the first sealing material.
  • the solar cell module of the present embodiment includes a plurality of solar cell elements, further includes a wiring electrically connected to the plurality of solar cell elements, and the wiring is made of a metal material that reflects light. preferable.
  • FIG. 1 is a perspective view of a solar cell module 100 of the present embodiment, and shows a part of its internal structure.
  • the solar cell module 100 of the present embodiment includes a solar cell element 1 having a texture structure 2 on the sunlight receiving surface side, an electrode (not shown) for extracting power generated in the solar cell element 1, and the solar cell module 1 of the present embodiment.
  • a first sealing material 4 which is a sealing material formed using the composition for forming a sealing material.
  • the solar cell module 100 includes a plurality of solar cell elements 1 and wirings 8 connecting them.
  • a solar cell module provided with a sealing material formed using the composition for forming a sealing material of the present embodiment is considered to improve power generation efficiency.
  • the first sealing material 4 that is a sealing material formed using the composition for forming a sealing material of the present embodiment and a texture on the light receiving surface side of sunlight. Since the solar cell element 1 having the structure 2 is combined, it is considered that the power generation efficiency is further improved as will be described later.
  • the solar cell element 1 converts solar energy of received sunlight into electric power that can be used by a power conversion element or the like.
  • the solar cell element single crystal silicon, polycrystalline silicon, thin film silicon, amorphous silicon, CIGS (compound composed of copper, indium, gallium and selenium), CIS (compound composed of copper, indium and selenium) And those using compounds such as cadmium telluride and gallium arsenide.
  • the first sealing material 4 and the cover glass 5 provided on the light receiving surface side of the solar cell element 1 are made of a material that can transmit sunlight. Therefore, sunlight passes through the cover glass 5 and the first sealing material 4 in this order from the light receiving surface side, and reaches the light receiving surface of the solar cell element 1.
  • the texture structure 2 is formed on the surface of the light receiving surface of the solar cell element 1 in addition to the portion where the striped light receiving surface electrodes (not shown) are arranged.
  • the solar cell element 1 is sealed with a first sealing material 4 and a second sealing material 7.
  • the wiring 8 is for electrically connecting adjacent solar cell elements 1 to each other.
  • the wiring 8 is also used to connect the solar cell module 100 to a secondary battery (not shown), an external load, or the like.
  • the wiring 8 is disposed on the light receiving surface electrode and is made of a metal material that reflects light.
  • the wiring 8 should just be comprised with the metal material which reflects at least one part of the irradiated light, for example, should just be comprised with the copper ribbon etc. by which solder coating was carried out.
  • a light receiving surface electrode is provided on the surface of each solar cell element 1 on the light receiving surface side, and a back electrode (not shown) is provided on the surface opposite to the light receiving surface (back side). .
  • the light-receiving surface electrode and the back electrode are for taking out electric power generated in the solar cell element 1.
  • each solar cell element 1 is electrically connected by the light-receiving surface electrode of the solar cell element 1 and the back electrode of the adjacent solar cell element 1 being connected by the wiring 8.
  • the light-receiving surface electrode and wiring 8 and the back electrode and wiring 8 are connected by soldering or the like.
  • the light receiving surface electrode is a striped electrode provided on the light receiving surface side of the solar cell element 1. That is, the light receiving surface electrode is provided on a part of the light receiving surface on the light receiving surface side of the solar cell element 1 so that the solar cell element 1 can receive light.
  • the light receiving surface electrode is made of, for example, silver.
  • the width in the left-right direction of the light-receiving surface electrode (bus electrode) that is striped is about 1.5 mm in the present embodiment.
  • a linear electrode (finger electrode) having a width of about 0.1 mm (width in the frontward direction) is provided in a direction perpendicular to the bus electrode.
  • the bus electrode (light receiving surface electrode) and the finger electrode are electrically connected, and the wiring 8 is connected to the bus electrode.
  • the back electrode is provided as a flat electrode on the entire surface on the side opposite to the light receiving surface (back side) of the solar cell element 1.
  • the back electrode is made of, for example, aluminum.
  • FIG. 2 is an exploded perspective view showing the solar cell module 100 of the present embodiment.
  • the solar cell module 100 includes a cover glass 5 (light-receiving surface protection material), a first sealing material 4 containing a light scatterer 3, and a texture structure on the light-receiving surface side from the light-receiving surface side.
  • the solar cell element 1 having 2, the second sealing material 7, and the back surface protective material 6 are arranged in this order.
  • the cover glass 5 is a kind of light-receiving surface protective material, and is made of a transparent material in the present embodiment. Since the solar cell module 100 includes the cover glass 5, the light scatterer 3, the first sealing material 4 and the like can be protected from wind and rain, and the durability of the solar cell module 100 can be improved. Therefore, the cover glass 5 is preferably excellent in both weather resistance and mechanical strength. Further, the cover glass 5 preferably has a high light transmittance in the wavelength range of 300 nm to 1100 nm where the sensitivity of the solar cell element 1 is high. Further, the surface of the cover glass 5 on the light receiving side may be subjected to treatment such as antireflection. In view of these points, examples of the material of the cover glass 5 include normal glass and high transmittance glass (white plate glass) in which the content of impurities such as iron is reduced from normal glass.
  • the first sealing material 4 is a sealing material located on the light receiving surface side of the solar cell element 1 and is provided between the solar cell element 1 and the cover glass 5.
  • the 1st sealing material 4 is the sealing material formed using the above-mentioned composition for sealing material formation, contains dispersion medium resin and the light-scattering body 3, and other components as needed. Contains.
  • the first sealing material 4 is made of a transparent material.
  • the first sealing material 4 preferably has a high light transmittance in the wavelength range of 300 nm to 1100 nm where the sensitivity of the solar cell element 1 is high.
  • the constituent material, content, average particle diameter, and the like of the light scatterer 3 in the first sealing material 4 are the same as those of the light scatterer in the above-described composition for forming a sealing material, description thereof is omitted. To do.
  • the thickness of the first sealing material 4 is not particularly limited.
  • the thickness is preferably 0.1 mm or more and 2 mm or less, more preferably 0.2 mm or more and 1 mm or less, and 0.3 mm or more. More preferably, it is 0.7 mm or less.
  • strength and a weather resistance can be exhibited especially favorable.
  • the haze of the first sealing material 4 containing the light scatterer 3 is 30% or more, and the total light transmittance of the first sealing material 4 containing the light scatterer 3 is used. Is 85% or more. Thereby, the solar cell module excellent in power generation efficiency can be provided.
  • the first sealing material 4 has a haze of preferably 60% or more, more preferably 80% or more, still more preferably 90% or more, and 91% or more from the viewpoint of further improving the power generation efficiency. It is particularly preferred that The first sealing material 4 preferably has a total light transmittance of 86% or more, more preferably 87% or more, and more preferably 88% or more, from the viewpoint of further improving the power generation efficiency. preferable.
  • the first sealing material 4 containing the light scatterer 3 in the solar cell module 100 By providing the first sealing material 4 containing the light scatterer 3 in the solar cell module 100, a light scattering film containing the light scatterer is provided on the light receiving surface side of the solar cell element, and the light scatterer is contained.
  • the sealing material which does not perform is provided, when the solar cell module 100 which connected the some solar cell element 1 in series is produced, it is between solar cell elements (adjacent solar cell element 1 and solar cell element 1 and The effect of scattering the light incident during (between) is more suitable.
  • the portion of the first sealing material 4 that is in contact with the second sealing material 7 contains the light scatterer 3. Thereby, the effect that the light which injected between solar cell elements is scattered suitably is acquired.
  • the production method of the first sealing material 4 is not particularly limited, and a known method can be applied.
  • a composition (sealing material) obtained by mixing a light scatterer, a dispersion medium resin and, if necessary, other components by a known method using a super mixer (high speed fluid mixer), a roll mill, a roll mixer, etc.
  • the sheet-shaped first sealing material can be produced by sandwiching the forming composition) between the release sheets and pressurizing and heating the sealing material-forming composition using a press.
  • this solution obtained by dissolving the composition in a solvent is coated on a suitable support with a suitable coating machine (coater) and dried to produce a sheet-like first sealing material.
  • a suitable coating machine coater
  • the second sealing material 7 is a sealing material located on the back side opposite to the light receiving surface of the solar cell element 1, and is provided between the solar cell element 1 and the back surface protective material 6.
  • the second sealing material 7 contains a dispersion medium resin and an ultraviolet absorber, and contains other components as necessary.
  • the ultraviolet absorber is not particularly limited, and the ultraviolet absorbers exemplified as the other components described above can be used without particular limitation.
  • the content of the ultraviolet absorbent in the second sealing material 7 is set to 0. 0 to 100 parts by mass of the dispersion medium resin contained in the second sealing material 7.
  • the amount is preferably 01 parts by mass or more, and more preferably 0.05 parts by mass or more.
  • Dispersion medium resin As the dispersion medium resin contained in the second sealing material 7, those exemplified as the dispersion medium resin contained in the aforementioned composition for forming a sealing material can be used without particular limitation.
  • the dispersion medium resin may be the same as or different from the dispersion medium resin contained in the first sealing material 4.
  • the second sealing material 7 includes a light scatterer, a light stabilizer, a plasticizer, a flame retardant, a cross-linking agent, a cross-linking aid, an adhesion aid, an antioxidant, a colorant in addition to the ultraviolet absorber and the dispersion medium resin. Further, additives such as a dispersant may be contained as other components. These components can be selected from what was illustrated as a component which the 1st sealing material 4 may contain.
  • the thickness of the second sealing material 7 is not particularly limited as long as the effect of sealing the solar cell element 1 is exhibited.
  • it is preferably 0.10 mm or more, more preferably 0.20 mm or more, and further preferably 0.30 mm or more.
  • the thickness of the second sealing material 7 is preferably 2.00 mm or less, more preferably 1.00 mm or less, and further 0.80 mm or less from the viewpoint of weight reduction and the like. preferable.
  • the back surface protective material 6 is provided on the back side of the solar cell module.
  • the material of the back surface protective material 6 is not particularly limited, and a resin or the like can be used.
  • the resin include polyethylene terephthalate (PET), polyamide (PA), polyvinyl fluoride (PVF), polyethylene (PE), and the like.
  • the shape of the back protective material is not particularly limited.
  • the back protective material may be formed into a plate shape or a sheet shape. The thickness in particular when a back surface protection material is plate shape or sheet shape is not restrict
  • the back protective material 6 may be composed of one layer (sheet) or a combination of a plurality of layers (sheets).
  • sheet may be a laminate containing a resin sheet and a layer of aluminum, silica, polyvinylidene fluoride or the like provided for the purpose of improving the durability and water vapor barrier properties of the resin sheet.
  • FIG. 3 is a schematic cross-sectional view of the solar cell module 100 of the present embodiment.
  • the texture structure 2 has a concavo-convex shape (in this embodiment, a pyramid with a height of about 0.5 ⁇ m to 10 ⁇ m as the height in the back surface direction of the light receiving surface). That is, the light receiving surface of the solar cell element 1 has an uneven shape, and the uneven portion corresponds to the texture structure 2. Therefore, the surface of the texture structure 2 is formed integrally with the light receiving surface of the solar cell element 1, and light incident on the surface of the texture structure 2 (the surface of the mountain portion) also contributes to power generation. Will do.
  • the uneven texture structure 2 is suitably formed by utilizing the fact that the silicon etching rate has anisotropy of crystal orientation. Is possible.
  • the texture structure 2 in the solar cell module 100 of the present embodiment has a pyramid shape as described above, but the specific shape of the texture structure 2 is not limited to a pyramid shape (square pyramid). That is, in the texture structure 2, for example, the light receiving surface of the solar cell element 1 has an uneven shape such as a cone, a cylinder, a polygonal pyramid such as a triangular pyramid, a polygonal prism such as a triangular prism, a wave shape or a circular arc shape in cross-sectional view. It only has to be. Since the uneven texture structure is formed on the light receiving surface of the solar cell element 1, the reflected light can be advanced in various directions when the incident light is reflected.
  • Light incident from the light receiving surface side passes through the cover glass 5 and the first sealing material 4 and enters the light receiving surface of the solar cell element 1.
  • As light incident on the light receiving surface there is light that directly enters from the light receiving surface side.
  • the sun is reflected by the surface of the texture structure 2 while being changed in direction by the light scatterer 3 in the first sealing material 4 and is finally absorbed by the surface of the texture structure 2 and used for power generation.
  • the light scatterer 3 As a result of being scattered in the incident direction by the light scatterer 3, the light is incident on the interface between the cover glass 5 and the air at an angle larger than the total reflection angle, totally reflected, and finally absorbed by the surface of the texture structure 2. There is also light that is used for power generation.
  • the area of the light receiving surface is increased by the texture structure 2 to improve the light incident efficiency. Furthermore, even if the light incident on the texture structure 2 is reflected without being used for power generation, it is again incident on the surface of the texture structure 2 by being scattered by the light scatterer 3, and enters the texture structure 2. The incident efficiency of light is increased. More specifically, light that is not used for power generation by the texture structure 2 is reflected in various directions, and the reflected light is scattered by the light scatterer 3 contained in the sealing material, so that the surface of the texture structure 2 is scattered. Since it becomes easy to enter again, the incident efficiency of the light to the texture structure 2 can be improved.
  • the amount of light used for power generation is increased compared to a solar cell element in which the texture structure is not formed on the light receiving surface. Therefore, the power generation efficiency is considered to be further improved.
  • an antireflection structure may be provided on the surface of the texture structure 2 (for example, a pyramidal uneven surface) to suppress reflection. Thereby, reflection on the surface of the texture structure 2 is suppressed, and the amount of light used for power generation can be increased.
  • the solar cell module 100 includes, for example, a cover glass 5, a first sealing material 4 of the present embodiment, a plurality of solar cell elements 1 that are electrically connected by wiring 8, a second sealing material 7, and a back surface protection material. 6 can be manufactured by laminating and laminating 6 in this order.
  • a laminating method for obtaining a solar cell module a known method can be adopted. For example, a method using a vacuum laminator device, a method using a vacuum bag, a method using a vacuum ring, a method using a nip roll, etc. Is mentioned.
  • this invention is not limited to a solar cell module provided with the solar cell element which has a texture structure in the light-receiving surface side of sunlight,
  • a solar cell provided with the solar cell element which does not have a texture structure in the light-receiving surface side of sunlight Modules are also included in the scope of the present invention.
  • BDDA butanediol diacrylate
  • DVD divinylbenzene
  • BDDA butanediol diacrylate
  • DVD divinylbenzene
  • DVD divinylbenzene
  • the refractive index at each wavelength at 25 ° C. was measured by the Becke line detection method.
  • the average particle diameter was measured using a flow particle image analyzer (FPIA-3000). The results are shown in Table 1.
  • Dispersion medium resin EVA (ethylene vinyl acetate copolymer, vinyl acetate content: 30% by mass, refractive index at 25 ° C .: 1.496)
  • Crosslinking agent Arkema Yoshitomi Corporation, trade name “Lupelox 101”
  • Crosslinking aid Nippon Kasei Co., Ltd., trade name “Tyke” -Adhesion aid: Toray Dow Corning Co., Ltd., trade name “SZ6030”
  • Ultraviolet absorber Sipro Kasei Co., Ltd., trade name “Seesorb102” -Light stabilizer: ADEKA Corporation, trade name "ADK STAB LA63P"
  • a first sealing material is placed on reinforced glass (Asahi Glass Co., Ltd.) as a light-receiving surface protective material, and a solar cell element having a texture structure on the light-receiving surface (Ferrotech Co., Ltd., polycrystalline cell, conversion) (17.8% efficiency) was placed with the light-receiving surface facing down.
  • a second sealing material and a polyamide three-layer sheet as a back protective material were placed on the solar cell element in this order.
  • the sample for optical property evaluation is obtained by sandwiching both surfaces of a first sealing material (50 mm ⁇ 45 mm ⁇ 0.45 mm) with white plate glass (50 mm ⁇ 50 mm ⁇ 3.2 mm) and thermocompression bonding (vacuum drawing at 150 ° C. for 5 minutes, And press for 1.5 minutes and hold at a pressure of 100 kPa for 15 minutes).
  • the thickness of the first sealing material in the sample after thermocompression bonding is set to 400 ⁇ m by arranging a spacer of 50 mm ⁇ 2 mm ⁇ 0.4 mm between the white glass and around the first sealing material. Adjusted.
  • the haze is 30% or more and the total light transmittance is 85% or more.
  • the first sealing in Comparative Examples 1 to 5 The material had a haze of less than 30% or a total light transmittance of less than 85%.
  • the solar cell modules using the first sealing material in Examples 1 to 17 were superior in power generation efficiency to the solar cell modules using the first sealing material in Comparative Examples 1 to 5.
  • the first sealing materials in Examples 1 to 17 were produced using the resin compositions having compositions 4 to 15 and 17 to 21.
  • the power generation efficiency of the solar cell module can be increased by using a resin composition having a haze of 30% or more and a total light transmittance of 85% or more when used as a sealing material for the production of the solar cell module. It has been shown.
  • SYMBOLS 1 Solar cell element, 2 ... Texture structure, 3 ... Light-scattering body, 4 ... 1st sealing material, 5 ... Cover glass, 6 ... Back surface protective material, 7 ... 2nd sealing material, 8 ... Wiring, 10 ... Incident light, 100 ... solar cell module

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne une composition de formation d'un matériau d'étanchéité, qui contient une résine de milieu de dispersion et un corps de diffusion de lumière qui diffuse la lumière à l'intérieur de la résine de milieu de dispersion. Un matériau d'étanchéité formé à partir de cette composition de formation d'un matériau d'étanchéité a un trouble supérieur ou égal à 30 % et une transmittance de lumière totale supérieure ou égale à 85 %.
PCT/JP2016/075908 2016-09-02 2016-09-02 Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire WO2018042643A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/075908 WO2018042643A1 (fr) 2016-09-02 2016-09-02 Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/075908 WO2018042643A1 (fr) 2016-09-02 2016-09-02 Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire

Publications (1)

Publication Number Publication Date
WO2018042643A1 true WO2018042643A1 (fr) 2018-03-08

Family

ID=61300245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/075908 WO2018042643A1 (fr) 2016-09-02 2016-09-02 Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire

Country Status (1)

Country Link
WO (1) WO2018042643A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021038336A (ja) * 2019-09-04 2021-03-11 学校法人 中村産業学園 蛍光色素

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010093005A1 (fr) * 2009-02-12 2010-08-19 株式会社ブリヂストン Film d'encapsulation pour module de cellule solaire et module de cellule solaire utilisant le film d'encapsulation
JP2012069865A (ja) * 2010-09-27 2012-04-05 Toppan Printing Co Ltd 太陽電池封止材及びそれを用いた太陽電池モジュール
JP2016134448A (ja) * 2015-01-16 2016-07-25 株式会社カネカ 太陽電池モジュール

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010093005A1 (fr) * 2009-02-12 2010-08-19 株式会社ブリヂストン Film d'encapsulation pour module de cellule solaire et module de cellule solaire utilisant le film d'encapsulation
JP2012069865A (ja) * 2010-09-27 2012-04-05 Toppan Printing Co Ltd 太陽電池封止材及びそれを用いた太陽電池モジュール
JP2016134448A (ja) * 2015-01-16 2016-07-25 株式会社カネカ 太陽電池モジュール

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021038336A (ja) * 2019-09-04 2021-03-11 学校法人 中村産業学園 蛍光色素
JP7479660B2 (ja) 2019-09-04 2024-05-09 学校法人 中村産業学園 蛍光色素

Similar Documents

Publication Publication Date Title
JP2018082206A (ja) ダウンコンバージョン材料を含む光透過性熱可塑性樹脂および光起電モジュールにおけるそれらの使用
JP2015522945A (ja) 光電池モジュール用の多層封止フィルム
JP2010199555A (ja) 太陽電池用バックシート及びそれを備える太陽電池モジュール
WO2011132560A1 (fr) Film d'étanchéité pour pile solaire et pile solaire utilisant un tel film
WO2011102242A1 (fr) Film de scellement pour modules photovoltaïques, et modules photovoltaïques l'utilisant
JP2017098432A (ja) 太陽電池モジュール
JP4762377B2 (ja) アモルファスシリコン太陽電池モジュール
JP2012004146A (ja) 太陽電池用封止膜及びこれを用いた太陽電池
WO2015108096A1 (fr) Film d'étanchéité pour cellule photovoltaïque, et cellule photovoltaïque l'utilisant
JP2016100505A (ja) 太陽電池用封止材及び太陽電池モジュール
US20170233509A1 (en) Luminescent ethylene-based copolymer, photovoltaic encapsulant compositions and solar cell module using same
JP5624793B2 (ja) 太陽電池用封止材および太陽電池モジュール
WO2018042643A1 (fr) Composition de formation d'un matériau d'étanchéité, matériau d'étanchéité et module de cellule solaire
WO2015046442A1 (fr) Film d'étanchéité pour cellules solaires, et cellule solaire utilisant ce dernier
JP5788712B2 (ja) エチレン−極性モノマー共重合体シート、並びにこれを用いた合わせガラス用中間膜、合わせガラス、太陽電池用封止膜及び太陽電池
JP2014179462A (ja) 太陽電池モジュール用裏側封止材及び太陽電池モジュール
WO2016039013A1 (fr) Composition de matériau d'étanchéité pour cellules solaires, couche de matériau d'étanchéité pour cellules solaires l'utilisant et module de cellules solaires
WO2015194594A1 (fr) Matériau de conversion de longueur d'onde et film d'étanchéité de photopile le contenant
WO2016067889A1 (fr) Module de cellule solaire de type à conversion de longueur d'onde
JP5869211B2 (ja) 太陽電池用封止膜及びこれを用いた太陽電池
JP6178126B2 (ja) 太陽電池用封止材組成物およびその製造方法、ならびに、それを用いた太陽電池用封止材層および太陽電池モジュール
JP2017025334A (ja) 太陽電池用封止材組成物、およびそれを用いた太陽電池用封止材層ならびに太陽電池モジュール
JP6026683B2 (ja) 太陽電池用封止材組成物、およびそれを用いた太陽電池用封止材層ならびに太陽電池モジュール
WO2016194193A1 (fr) Matériau de conversion de longueur d'onde
JP2014072455A (ja) 太陽電池モジュール

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16915200

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16915200

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP