CN114763416A - Light conversion film between photovoltaic cell with TCO layer on surface and photovoltaic module packaging adhesive film - Google Patents
Light conversion film between photovoltaic cell with TCO layer on surface and photovoltaic module packaging adhesive film Download PDFInfo
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- CN114763416A CN114763416A CN202110056486.0A CN202110056486A CN114763416A CN 114763416 A CN114763416 A CN 114763416A CN 202110056486 A CN202110056486 A CN 202110056486A CN 114763416 A CN114763416 A CN 114763416A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 105
- 239000002313 adhesive film Substances 0.000 title claims abstract description 28
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 30
- 238000002834 transmittance Methods 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 150000004696 coordination complex Chemical class 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052709 silver Inorganic materials 0.000 abstract description 7
- 239000004332 silver Substances 0.000 abstract description 7
- 238000007731 hot pressing Methods 0.000 abstract description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 17
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 10
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 9
- 238000003475 lamination Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000010030 laminating Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- -1 rare earth ion Chemical class 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 3
- 229920000831 ionic polymer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010345 tape casting Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 2
- QBQVCCUJHAORJO-UHFFFAOYSA-N 3-prop-2-enylpentane-2,4-dione Chemical compound CC(=O)C(C(C)=O)CC=C QBQVCCUJHAORJO-UHFFFAOYSA-N 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229920006132 styrene block copolymer Polymers 0.000 description 2
- FJERMCQUSONQAU-UHFFFAOYSA-N 2,4,6-tripyridin-2-yl-1h-triazine Chemical compound N1N(C=2N=CC=CC=2)N=C(C=2N=CC=CC=2)C=C1C1=CC=CC=N1 FJERMCQUSONQAU-UHFFFAOYSA-N 0.000 description 1
- FIYMNUNPPYABMU-UHFFFAOYSA-N 2-benzyl-5-chloro-1h-indole Chemical compound C=1C2=CC(Cl)=CC=C2NC=1CC1=CC=CC=C1 FIYMNUNPPYABMU-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229910017583 La2O Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- RJGDLRCDCYRQOQ-UHFFFAOYSA-N anthrone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3CC2=C1 RJGDLRCDCYRQOQ-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
-
- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
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- 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
- C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a light conversion film between a photovoltaic cell with a TCO layer on the surface and a photovoltaic module packaging adhesive film, wherein the light conversion film contains a light conversion agent, and the light conversion agent accounts for 0.01-15% of the total mass content of the film. The light conversion film can be bonded with the metal wire in a hot-pressing mode, the use amount of the silver grid line is reduced, and the light conversion film can play a role in supporting the metal wire and can be well bonded with the TCO layer through the reasonable designed viscous flow state transition temperature Tf. And the light conversion film fully improves the utilization rate of sunlight, ultraviolet light absorbed by the TCO layer is converted into visible light in advance, and the power of the component is effectively improved.
Description
Technical Field
The invention relates to the field of packaging for photovoltaic modules, in particular to a light conversion film between a photovoltaic cell with a TCO layer on the surface and a photovoltaic module packaging adhesive film.
Background
The surface of the current novel battery such as an HIT battery, a Topcon battery and the like is provided with a special TCO conducting layer, the TCO conducting layer is ITO, IWO, IOH, IMO or ICO, the conducting layer such as ITO can absorb more than 85% of ultraviolet rays, so that the ultraviolet part in sunlight is wasted, and a product capable of improving the ultraviolet utilization rate for a photovoltaic battery with a TCO film is needed.
Disclosure of Invention
In the field of manufacturing of photovoltaic module equipment at home and abroad, solar photovoltaic stringer equipment is provided in the prior art, a main grid of an electrode plate and a metal wire are welded through silver paste in the manufacturing process of the electrode string, the alignment degree of the position between the metal wire and the main grid of the electrode plate is higher, the main grid of the metal wire electrode plate is connected through a plurality of metal wires with rectangular cross sections, the welding contact area is small, the welding performance is general, and meanwhile, the light transmittance performance is greatly influenced by the welding of the silver paste. The hot-press bonding method of the support film and the metal wire is tried in the industry, so that the production efficiency is improved, the solar photovoltaic cell has better conductivity, the use of silver paste can be obviously reduced, and the cost is greatly reduced. As disclosed in the prior art, an electrode is provided in which an electrically conductive metal wire is supported by a support film with an adhesive layer, and the electrode is used in place of a silver paste electrode, thereby achieving high efficiency and low cost.
The existing light conversion agent is added into the packaging adhesive film, and the packaging adhesive film contains auxiliary agents such as a cross-linking agent and the like, so that the light conversion agent is easy to react with the light conversion agent, and the service life of the light conversion agent is shortened. The prior art discloses a light conversion packaging adhesive film which is prepared from the following raw materials in parts by weight: 80-100 parts of ethylene-vinyl acetate copolymer, 0.01-5 parts of cross-linking agent, 0.01-10 parts of antioxidant, 1-10 parts of compatibilizer and 1-10 parts of wavelength conversion particles.
As disclosed in the prior art, the organic light conversion nanoparticles, the photovoltaic cell packaging adhesive film and the preparation method thereof use the organic light conversion particles, which can significantly improve the photoelectric conversion efficiency of the solar cell, but are not resistant to ultraviolet yellowing. And contains additives such as peroxide, crosslinking assistant and the like, and the preparation process is complex.
Aiming at the defects of the prior art, the invention provides a light conversion film between a photovoltaic cell with a TCO layer on the surface and a photovoltaic module packaging adhesive film. The light conversion film can be bonded with the metal wire in a hot-pressing mode, and the usage amount of the silver grid line is reduced. And the light conversion film can play a role in supporting the metal wire and can be well bonded with the TCO layer through the viscous flow state transition temperature Tf which is reasonably designed. In addition, the light conversion agent is dispersed in the light conversion film, so that the loss of the cross-linking agent to the light conversion film is reduced.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention relates to a light conversion film between a photovoltaic cell with a TCO layer on the surface and a photovoltaic module packaging adhesive film, wherein the light conversion film contains a light conversion agent, and the light conversion agent accounts for 0.01-15% of the total mass content of the film.
Preferably, the light conversion film is a single layer or a multilayer film, and may be a film alone or a composite film with a metal wire attached to the surface on the battery side.
The light conversion agent is an additive which can convert all or part of light with the wavelength of less than 480nm into visible light, and is an organic dye light conversion agent, and is also one or more of an inorganic salt light conversion agent or an organic metal complex.
Preferably, the organic dye light conversion agent comprises one or more of vat red, fluorescent whitening agent, anthrone and rhodamine.
Preferably, the inorganic salt light conversion agent comprises one or more of rare earth ion or heavy metal ion doped alkaline earth aluminate, oxide, sulfide, tungstate and silicate.
Preferably, the organometallic complex comprises Tb (II) -APD (3-allyl-2, 4-pentanedione) rare earth-I3-dione complex; 2, 4, 6-tripyridyltriazine (TPTZ) is taken as a ligand, and one or more rare earth(s) taking samarium, europium, terbium and dysprosium as centers are taken.
Preferably, at least one layer of the light conversion film has a viscous state transition temperature Tf of 70-200 ℃.
The light conversion film comprises one or more of polyolefin copolymer, polyamide resin, epoxy resin, cycloolefin copolymer, styrene block copolymer, fluororesin, polyethylene terephthalate copolymer, ethylene-vinyl acetate copolymer, ionic polymer, ethylene-vinyl acetate copolymer, silane grafted copolymer, maleic anhydride grafted copolymer, acrylate copolymer, petroleum resin, rosin resin, epoxy resin and light conversion agent. The light conversion film prepared from the components needs to meet the viscous state transition temperature of 70-200 ℃.
Preferably, the peeling strength between the light conversion film and the photovoltaic cell with the TCO layer on the surface is greater than 20N/cm, the peeling strength between the light conversion film and the packaging adhesive film is greater than 20N/cm, and the light transmittance of the light conversion film is greater than 80%.
Preferably, the thickness of the light conversion film is 10-300 μm.
The light conversion film can be bonded with the metal wire in a hot-pressing mode, the use amount of the silver grid line is reduced, and the light conversion film can play a role in supporting the metal wire and can be well bonded with the TCO layer through the designed reasonable viscous flow state transition temperature Tf. And the light conversion film fully improves the utilization rate of sunlight, ultraviolet light absorbed by the TCO layer is converted into visible light in advance, the problem of poor blue light response of the photovoltaic cell with the TCO film is solved, and the power of the assembly is effectively improved.
Detailed Description
For a better understanding of the present invention, the following description will be made with reference to the accompanying drawings.
Example 1
The light conversion film comprises, by mass, 47% of polyethylene, 20% of ionomer, 18% of ethylene-vinyl acetate (EVA) copolymer, and 15% of light conversion agent, specifically Y2O3-Yb3+/Er3+. The thickness of the light conversion film is100 μm as a single layer film, and the light conversion film obtained by casting was designated as S1.
Example 2
The light conversion film comprises 77.99% of styrene-butadiene-styrene block copolymer, 5% of methacrylate, 17% of ionic polymer and 0.01% of light conversion agent, specifically La2O3-Yb3+/Er3+. The light conversion film was 10 μm in thickness and was a double-layer film, and the light conversion film obtained by double-layer co-extrusion was designated as S2.
Example 3
The light conversion film comprises, by mass, 30% of styrene-ethylene-butylene copolymer-styrene block copolymer, 30% of polyethylene, 35% of ethylene-vinyl acetate copolymer, and 5% of light conversion agent, specifically Gd2O3-Eu3+. The thickness of the light conversion film is 300 mu m, the light conversion film is a single-layer film and is prepared by tape casting; and the surface of the light conversion film on the battery side is attached with a metal wire, the metal wire is a copper wire, the copper wire is attached to the light conversion film in a magnetron sputtering mode, and the finally prepared light conversion film is marked as S3.
Example 4
The formula of the light conversion film comprises, by mass, 40% of polyvinylidene fluoride, 40% of methacrylate, 16% of ionic polymer and 4% of light conversion agent, specifically YVO4-Eu3+. The thickness of the light conversion film is 240 mu m, the light conversion film is a three-layer film and is prepared by three-layer co-extrusion; and the surface of the light conversion film on the battery side is attached with a metal wire, the metal wire is a copper wire, the copper wire is attached to the light conversion film in a magnetron sputtering mode, and the finally prepared light conversion film is marked as S4.
To better demonstrate the beneficial effects of the present invention, two comparative examples are given here, which are general type adhesive films, which are defined as transparent EVA and POE three-layer co-extruded adhesive films without light conversion agent.
Comparative example 1
The formula of a common transparent EVA adhesive film comprises, by mass, 96% of ethylene-vinyl acetate copolymer, 1% of tert-butyl 2-ethylhexyl carbonate peroxide, 2% of gamma-methacryloxypropyl trimethoxy silane and 1% of triallyl isocyanurate. The common type transparent EVA adhesive film is 100 μm, and the common type transparent EVA adhesive film prepared by tape casting is marked as D1.
Comparative example 2
The formula of the common POE three-layer co-extrusion adhesive film comprises, by mass, 97% of an ethylene-octene copolymer, 1.5% of tert-butyl peroxy-2-ethylhexyl carbonate, 0.5% of gamma-methacryloxypropyl trimethoxy silane and 1% of triallyl isocyanurate. The common POE three-layer co-extrusion adhesive film is 180 mu m, and the common POE three-layer co-extrusion adhesive film prepared by the tape casting method is marked as D2.
Performance testing
The light transmittance, the viscous state transition temperature Tf, and the peel strength and the module efficiency of the photovoltaic cell with the TCO film of the light transfer film in the examples S1-S4 are compared with those of the common glue films in the comparative examples D1-D2.
Performance test scheme
1. Light transmittance
Two pieces of light conversion films with the thickness of 100mm x 100mm are taken, the two pieces of light conversion films are overlapped and put into a laminating machine for lamination, the laminating process is carried out at the temperature of 150 ℃ for 18 minutes, and the length of the two pieces of light conversion films is 6cm, and the width of the two pieces of light conversion films is 3cm after the two pieces of light conversion films are cooled. The final data were averaged between 380 and 1100nm using UV spectrophotometer measurements. The comparative example was tested in the same manner as above.
2. Transition temperature of viscous state Tf
Taking a 45mm by 5mm light conversion film, testing by using a dynamic mechanical analyzer (DMA, the model is Q-800), wherein the temperature range is 20-250 ℃, the temperature is increased at 5 ℃/min, and the frequency is 1 Hz. The taken light conversion film is placed in a machine for calibration before testing, and when a test point appears in a standard interval, the testing is started. The comparative example was tested in the same manner as above.
3. Peel strength from photovoltaic cells with TCO films
Taking two light conversion films of 100mm x 100mm, overlapping the light conversion film samples, placing the light conversion film samples in the order of glass-transparent EVA adhesive film-light conversion film-photovoltaic cell with TCO film-light conversion film-transparent EVA adhesive film-back plate, then integrally placing the light conversion film samples in a laminating machine for lamination, wherein the lamination process is 150 ℃ for 18 minutes, and after cooling, testing the peeling strength of the light conversion film samples and the photovoltaic cell with the TCO film. The comparison example is that the glass, the EVA adhesive film, the common film, the photovoltaic cell with the TCO film, the common film, the EVA adhesive film and the back plate are arranged in sequence, then the whole is put into a laminating machine for lamination, the lamination process is 150 ℃ for 18 minutes, and the peeling strength of the common film and the photovoltaic cell with the TCO film is tested after cooling. The peel strength was tested according to GB/T2790-1995.
4. Efficiency of assembly
Taking two 200mm x 300mm light conversion films and two 200mm x 300mm common hot melt adhesive films, placing the two films in sequence according to the sequence of glass-EVA adhesive film-light conversion film-photovoltaic cell with TCO film (including solder strip and bus strip) -light conversion film-EVA adhesive film-back plate, then integrally placing the films into a laminating machine for lamination, wherein the laminating process is 150 ℃, the temperature is 18 minutes, and testing the power after cooling. In the comparative example, the photovoltaic cells (including solder strips and bus strips), the common film and the EVA film with the TCO film, the back plates are sequentially placed, then the whole is placed in a laminating machine for lamination, the lamination process is 150 ℃, the temperature is 18 minutes, and the efficiency is tested after cooling. The efficiency of the assembly is tested according to the IEC61215 standard.
The test results are shown in Table 1
The light transmittance of examples S1 to S4 was almost unchanged compared with comparative examples D1 to D2; the peel strength of the photovoltaic cells with the TCO films of examples S1-S4 is improved compared with that of comparative examples D1-D2; the module efficiencies of examples S1 to S4 were improved compared with those of comparative examples D1 to D2.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The description is thus to be regarded as illustrative instead of limiting.
Claims (8)
1. The light conversion film is arranged between a photovoltaic cell with a TCO layer on the surface and a photovoltaic module packaging adhesive film, and is characterized by comprising a light conversion agent, wherein the light conversion agent is 0.01-15% of the total mass content of the film.
2. The light conversion film between the photovoltaic cell with the TCO layer on the surface and the photovoltaic module packaging adhesive film as claimed in claim 1, wherein the light conversion film is a single layer or a multilayer film, a single film or a composite film with metal wires attached to the cell side surface.
3. The light conversion film between the photovoltaic cell with the TCO layer on the surface and the photovoltaic module packaging adhesive film as claimed in claim 1, wherein the light conversion agent is an additive that converts light with a wavelength below 480nm into visible light wholly or partially, and is an organic dye type light conversion agent, and is also one or more of an inorganic salt type light conversion agent or an organic metal complex.
4. The light conversion film between the photovoltaic cell with the TCO layer on the surface and the photovoltaic module packaging adhesive film as claimed in claim 1, wherein at least one layer of the light conversion film has a viscous state transition temperature Tf of 70-200 ℃.
5. The light conversion film between the photovoltaic cell with the TCO layer on the surface and the photovoltaic module packaging adhesive film as claimed in claim 1, wherein the peel strength between the light conversion film and the photovoltaic cell with the TCO layer on the surface is greater than 20N/cm, the peel strength between the light conversion film and the packaging adhesive film is greater than 20N/cm, and the light transmittance of the light conversion film is greater than 80%.
6. The light conversion film between the photovoltaic cell with the TCO layer on the surface and the photovoltaic module packaging adhesive film as claimed in claim 1, wherein the thickness of the light conversion film is 10-300 μm.
7. A cell structure comprising the light conversion film of claims 1 to 6 and a photovoltaic cell comprising a TCO conductive layer.
8. A cell structure comprising in sequence the light conversion film of claims 1 to 6, a metal wire and a photovoltaic cell comprising a TCO conductive layer.
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