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WO2018061036A1 - Plaque arrière pour module photovoltaïque - Google Patents

Plaque arrière pour module photovoltaïque Download PDF

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Publication number
WO2018061036A1
WO2018061036A1 PCT/IN2017/050441 IN2017050441W WO2018061036A1 WO 2018061036 A1 WO2018061036 A1 WO 2018061036A1 IN 2017050441 W IN2017050441 W IN 2017050441W WO 2018061036 A1 WO2018061036 A1 WO 2018061036A1
Authority
WO
WIPO (PCT)
Prior art keywords
backsheet
polyolefin
polymer
glass transition
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IN2017/050441
Other languages
English (en)
Inventor
Roshan Shah
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2018061036A1 publication Critical patent/WO2018061036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/85—Protective back sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules
    • 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

Definitions

  • This disclosure relates generally to the field of photovoltaic modules particularly to the use of polymer films therein, and more specifically to an improved backsheet therein, and a process for making the backsheet.
  • PV modules are large-area optoelectronic devices that convert solar radiation directly into electrical energy.
  • PV modules are made by interconnecting individually formed and separate solar cells, e.g., multi-crystalline or mono-crystalline silicon solar cells, and then mechanically supporting and protecting the solar cells against environmental degradation by integrating the cells into a laminated PV module.
  • the laminated modules generally comprise a rigid and transparent protective front panel or sheet, and a rear panel or sheet which is typically called a backsheet. Forming a sandwiched arrangement between the front panel and backsheet are the interconnected solar cells and an encapsulant which is transparent to solar radiation.
  • the front panel and backsheet encapsulate the solar cell(s) and provide protection from environmental damage .
  • a thin film material may be deposited on a rigid transparent layer, such as glass, and bonded to a backsheet with a transparent adhesive.
  • PV modules have been formed using a backsheet consisting of a thermoplastic polymer (e.g., a resin), glass, or some other material.
  • a backsheet consisting of a thermoplastic polymer (e.g., a resin), glass, or some other material.
  • Known backsheets for example, comprises a laminated structure of polyvinyl fluoride (PVF)/polyester ( PET (/ethylene vinyl acetate (EVA or primer), also PVF/PVD F//PET//P V F/P V DF or PV F/PV DF//PET//E V A/PE or PET//Polyolefin. They are laminated together using adhesives due to which there is a high likelihood of these getting delaminated during the lifespan of the PV module, thereby, exposing the cells to environment and eventually degrading the PV module.
  • PVF polyvinyl fluoride
  • PET ethylene vinyl acetate
  • PV modules A goal of the PV industry, however, is to have PV modules with an effective working life of decades.
  • the materials used in constructing PV modules are selected with concern for providing adequate resistance to damage from impact and physical and thermal shock, maximizing the amount of usable solar radiation received by the cells, avoiding short-circuiting and electrical leakage, and minimizing degradation from such environmental factors as moisture, temperature, and ultra-violet sunlight-induced chemical reactions.
  • a further concern of the PV industry is that the useful life goal of PV modules be attained at a commercially acceptable cost.
  • Both WO2013003541 and WO2013051403 discloses a multi-layer film laminate for an electronic device such as a photovoltaic module wherein the various layers of the film are laminated together to each other and there is a presence of a separate seal layer that seals the various layers to produce a single laminate.
  • a separate seal layer that seals the various layers to produce a single laminate.
  • WO/2015/168174 discloses photovoltaic backsheets with multiple layers of co-extruded polymers wherein each layer may include polyolefin.
  • machine direction crack propagation is seen after lamination to the EVA encapsulant on glass during the thermal cycling i.e. -45C to +80C.
  • PV backsheets In addition to improving material properties of films, such as improved ductility, impact resistance, and thermal performance, materials for use in PV backsheets will need to maintain their operating performance in real world conditions, including, for example, during continuous use as backsheets on PV modules operating in a multitude of climate conditions.
  • the present invention relates to a backsheet for a photovoltaic module with plurality of co-extruded layers, wherein one or more layer comprises of polyolefin and a polymer having low glass transition than that of polyolefin.
  • the polyolefin can be polypropylene and/or polyethylene.
  • the layers can also be laminated.
  • the invention in another aspect, relates to process for preparing a backsheet for a photovoltaic module comprising the steps of co-extruding plurality of polymer layers, wherein one or more layer is prepared by mixing a polyolefin and a polymer with a glass transition lower than the polyolefin. The layers are then co-extruded in one extrusion to obtain a final extruded backsheet.
  • FIG. 1 illustrates a graph showing the thermal cycling test carried out bon the PV module comprising the backsheet in accordance with an embodiment of the invention.
  • the present invention relates to a backsheet for a photovoltaic module.
  • the said backsheet includes plurality of co-extruded layers, one or more layer comprising of a polyolefin and a polymer with a lower glass transition than that of the polyolefin added to improve the impact strength of the backsheet.
  • the polyolefin can be polypropylene and/or polyethylene.
  • the polypropylene is a homopolymer, copolymer or random copolymer and the polyethylene may be low density polyethylene (Low Density Polyethylene (LDPE), Linear low- density polyethylene (LLDPE), High Density Polyethylene (HDPE), Ultra High Molecular Weight Polyethylene (UHMWPE), optionally linear.
  • LDPE Low Density Polyethylene
  • LLDPE Linear low- density polyethylene
  • HDPE High Density Polyethylene
  • UHMWPE Ultra High Molecular Weight Polyethylene
  • the low glass transition polymer may be selected from Styrenic Thermoplastic Elastomers, Styrenic Block Copolymers and/or Hydrogenated Styrenic Block copolymers like styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-butadiene- styrene (SEBS), hydrogenated polydiene polymers, Propylene based Ethylene -octene polymer or ethylene-propylene-diene-monomer (EPDM) to improve the impact strength of the backsheet.
  • Styrenic Thermoplastic Elastomers Styrenic Block Copolymers and/or Hydrogenated Styrenic Block copolymers like styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-butadiene- styrene (SEBS), hydrogenated polydiene polymers, Propylene based Ethylene -o
  • the backsheet does not consist of any adhesive or seal layers as the layers are co-extrudeded to each other.
  • the layers may also be laminated.
  • Each layer may further comprise additives known within the art.
  • the layers preferably comprise at least one additive selected from UV stabilizers, UV absorbers, anti-oxidants, thermal stabilizers, nucleating agents, flame retardants, halogen free flame retardants and/or hydrolysis stabilisers.
  • additives stabilizers
  • the polymer composition contains from 0.01 wt. % to 20 wt.% additive, based on the total weight of the polymer combination.
  • the weight percentage of polypropylene is between 50-80%, lower glass transition temperature polymer is between 10-30% and polyethylene is between 0.01-10 % based of the weight of each layer.
  • the said backsheet can comprise three layers i.e. an air-side layer, a cell-side layer and a mid-layer.
  • the middle layer includes a pigment which may be any type of organic or inorganic pigment, including carbonaceous pigments, titanium dioxide, silica, calcium carbonate, hydrophobic silica, fly ash and/or carbon black.
  • the weight percentage of the pigment in the middle layer is 1-15% of the weight of the backsheet. Additionally, said pigment in the backsheet may reflect light back to the solar cells, thereby increasing the efficiency of the module.
  • the layers of said backsheet may additionally comprise of additives such as antioxidants (AO), hindered amine light stabilizers (HALS), ultraviolet light absorbers (UV), antiozonants, organophosphorus, boron compounds, phosphates, organohalogens, metal hydroxides such as aliminium trihydroxide and magnesium dihydroxide and thio-di-propionate peroxide decomposers such as distearyl thio-di-propionate (DSTDP).
  • the antioxidants (AO) have a weight percentage of 0.01-5% on the weight percentage of the protective film.
  • the UV light absorbers are selected from benzophenones and benzotriazoles such as hydroxyphenylbenzotriazole and hydroxyphenyltriazines.
  • UV light absorbers are generally in the weight percentage range of 0.01-5 weight percentage on the weight percentage of the backsheet.
  • the HALS are in the weight percentage of 0.01-5 on the weight percentage of the protective backsheet.
  • the HALS include butanedioic acid, dimethyl ester, 4- hydroxy-2,2,6,6-tetramethyl-l-peperidine and its other derivatives.
  • the antioxidants consists of hindered phenols, secondary aromatic amines, benzofuranones, l,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl, 1,3,5- triazine-2,4,6-(lH,3H,5H)-trione, and/or tris(2,4-di-t-butylphenyl) phosphite.
  • the layers obtained by co- extruding fulfills all essential requirements for solar-cell module backsheet, such as weathering stability (UV and hydrolysis resistance), enhanced thermal cycling, heat resistance, mechanical protection, electrical insulation and good adhesion.
  • weathering stability UV and hydrolysis resistance
  • enhanced thermal cycling heat resistance
  • mechanical protection electrical insulation and good adhesion.
  • the thickness of the solar-cell module backing layer is preferably from 0.1 to 1 mm, more preferably from 0.15 to 0.8 mm, even more preferably from 0.2 to 0.75 mm.
  • the invention relates to process for preparing a backsheet for a photovoltaic module comprising the steps of co-extruding plurality of polymer layers, wherein each layer is prepared by mixing a polyolefin and a polymer with a glass transition lower than the polyolefin.
  • the polyolefin used in different layers may be same or different. The co-extrusion of the plurality of layers avoids the need for the seal layer or adhesive layer thereby preventing delamination and extending the life of the PV module.
  • the present invention further relates to a solar-cell module containing the backsheet of the invention.
  • the advantages of the backsheet of the present invention includes avoiding delamination, faster production, production in one go thereby resulting in less defects, cost effectiveness, and no bubbling of the backsheet. Also, the process for production may be solventless, and an environment friendly process.
  • the backsheet of the invention has a very good thermal conductivity resulting in better heat dissipation compared to other backsheets available in the market. The high thermal conductivity helps in keeping panel temperature lower thereby increasing the efficiency.
  • a protective sheet according to the invention comprising of 3 coextruded layers: an air-side layer, a mid layer and a cell-side layer was prepared.
  • Each layer had a thickness of approximately 75 microns
  • each mid layer had a thickness of approximately 55 microns
  • each cell -side layer had a thickness of approximately 69 microns.
  • the sheets were prepared with the following formulation.
  • a comparative test between the sheet comprising a polymer with low transition temperature than polyolefin and the conventionally available sheets was conducted by subjecting the sheets to Thermal cycling test. The purpose of this test was to determine the ability of the PV module to withstand the effects such as material fatigue, temperature stresses etc. during fast changes of temperatures from 85°C to -40°C.
  • the temperature was brought down to -40°C in 30 minutes.
  • the dwell time at temperature of -40°C was held for 10 minutes.
  • the temperature was increased to 85°C in 75 minutes.
  • the dwell time at temperature of 85°C was held for 10 minutes.
  • the temperature was again brought down to 0°C in 56 minutes.

Landscapes

  • Photovoltaic Devices (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une plaque arrière pour module photovoltaïque, la plaque arrière comportant une pluralité de couches co-extrudées parmi lesquelles une ou plusieurs couches co-extrudées comprennent une polyoléfine; et un polymère à température de transition vitreuse inférieure à celle de la polyoléfine d'au moins une desdites couches co-extrudées.
PCT/IN2017/050441 2016-10-02 2017-09-29 Plaque arrière pour module photovoltaïque Ceased WO2018061036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201621030127 2016-10-02
IN201621030127 2016-10-02

Publications (1)

Publication Number Publication Date
WO2018061036A1 true WO2018061036A1 (fr) 2018-04-05

Family

ID=61762627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2017/050441 Ceased WO2018061036A1 (fr) 2016-10-02 2017-09-29 Plaque arrière pour module photovoltaïque

Country Status (1)

Country Link
WO (1) WO2018061036A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022110728A1 (fr) * 2020-11-24 2022-06-02 Endurance Solar Solutions B.V. Feuille arrière de module photovoltaïque comprenant des couches polyoléfiniques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390093A1 (fr) * 2010-08-16 2011-11-30 3M Innovative Properties Company Feuille arrière solaire à base de polyoléfine
US20140138734A1 (en) * 2012-11-20 2014-05-22 Kuo Hsin Technology Co., Ltd. Module structure
EP2461973B1 (fr) * 2009-07-23 2014-12-17 RENOLIT Belgium N.V. Modules photovoltaïques avec feuille arrière à base de polypropylène
US20150027516A1 (en) * 2012-03-12 2015-01-29 Renolit Belgium N.V. Backsheet and photovoltaic modules comprising it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2461973B1 (fr) * 2009-07-23 2014-12-17 RENOLIT Belgium N.V. Modules photovoltaïques avec feuille arrière à base de polypropylène
EP2390093A1 (fr) * 2010-08-16 2011-11-30 3M Innovative Properties Company Feuille arrière solaire à base de polyoléfine
US20150027516A1 (en) * 2012-03-12 2015-01-29 Renolit Belgium N.V. Backsheet and photovoltaic modules comprising it
US20140138734A1 (en) * 2012-11-20 2014-05-22 Kuo Hsin Technology Co., Ltd. Module structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022110728A1 (fr) * 2020-11-24 2022-06-02 Endurance Solar Solutions B.V. Feuille arrière de module photovoltaïque comprenant des couches polyoléfiniques
CN116917119A (zh) * 2020-11-24 2023-10-20 赢润太阳能解决方案有限公司 包含聚烯烃层的光伏模块背板

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