EP3698411A1 - Flexible laminate of photovoltaic cells and method for manufacturing such a flexible laminate - Google Patents
Flexible laminate of photovoltaic cells and method for manufacturing such a flexible laminateInfo
- Publication number
- EP3698411A1 EP3698411A1 EP18799679.8A EP18799679A EP3698411A1 EP 3698411 A1 EP3698411 A1 EP 3698411A1 EP 18799679 A EP18799679 A EP 18799679A EP 3698411 A1 EP3698411 A1 EP 3698411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- varnish
- layer
- flexible laminate
- encapsulation
- photovoltaic cells
- 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.)
- Withdrawn
Links
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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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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 the field of photovoltaic panels. More particularly, the present invention relates to laminated photovoltaic panels. Furthermore, the present invention also relates to a method of manufacturing such a laminate constituting the photovoltaic panel.
- the composition of the photovoltaic panels must be sufficiently thin to limit their weight and their dimensions, which allows for example to embark them on a vehicle, to be integrated into the structure of a vehicle, or to be integrated into light structures of buildings.
- the modules In order to adapt to a wide variety of locations and to operate while being subjected to climatic aggressions, vibrations and mechanical stresses in general over long periods, sometimes more than twenty years, the modules must have a sufficiently strong structure while being light.
- the shape of the support can vary significantly, and in particular have a curved receiving surface. It is therefore necessary to be able to adapt the shape of the photovoltaic panel to that of the support.
- an encapsulated photovoltaic panel also called laminated, it is sought to ensure the encapsulated panel all of the following properties:
- Another object of the present invention is to provide a flexible laminate of photovoltaic cells whose maintenance and repair operations are simplified.
- Another object of the present invention, different from the previous objective, is to provide a method of manufacturing such a flexible laminate.
- the present invention relates to a flexible laminate of photovoltaic cells comprising at least:
- a layer of photovoltaic cells connected together, and
- the flexible laminate further comprising at least one transparent layer of polymer-based lacquer deposited on one of the front and / or rear encapsulation layers, said at least one transparent lacquer layer being disposed outside the flexible laminate and being configured to provide protection for the flexible laminate.
- the presence of at least one transparent layer of polymer-based varnish makes it possible to protect the various layers constituting this flexible laminate and in particular prevents them from being separated or delaminated.
- this transparent varnish layer makes it possible to prevent the yield losses of such laminated photovoltaic panels over time, these yield losses being able to be due to the deterioration of the components of the flexible laminate caused by the external conditions, such as, for example climatic conditions.
- the use of a layer of varnish disposed on one of the front and / or rear encapsulation layers makes it easier and simpler to maintain and repair this layer of varnish, by filling any holes or scratches that can be formed in this layer of varnish under the effect of projection of solid elements on this layer of varnish, for example once this flexible laminate installed.
- the flexible laminate according to the present invention may further comprise one or more of the following features taken alone or in combination.
- the transparent varnish layer consists of a varnish based on a polymer selected from polyurethane type varnishes, acrylic type varnishes, polyester type varnishes, silicone type varnishes, or epoxy type varnishes.
- the varnish may comprise at least one additive that absorbs or reflects ultraviolet radiation.
- the varnish may comprise at least one self-extinguishing additive.
- the varnish may comprise at least one additive for improving the diffusion of light.
- the varnish may comprise at least one additive making it possible to convert photons of certain spectral ranges towards the spectral ranges of current conversion of the photovoltaic cells.
- the varnish may further comprise an additive such as pigments when it is intended to be deposited on the encapsulation back layer.
- the varnish may comprise glass beads.
- the flexible laminate may further comprise first and second intermediate layers respectively disposed between the front layer and the photovoltaic cell layer and between the encapsulating back layer and the photovoltaic cell layer.
- the first and second intermediate layers may consist of a dry fabric of glass fibers.
- the front and rear encapsulation layers are layers of fiberglass fabric pre-impregnated with an encapsulation resin.
- the flexible laminate has at least one side edge covered with the at least one clear coat of varnish.
- the present invention also relates to a method of manufacturing a flexible laminate of photovoltaic cells comprising a layer of photovoltaic cells connected together, a front layer and a rear layer of encapsulation of the photovoltaic cell layer, said method comprising a finishing step in which a polymer-based varnish, in liquid form, is applied to at least one of the front or rear encapsulation layers.
- a varnish in liquid form makes it easier to manufacture such a flexible laminate, and thus to limit the manufacturing costs of these flexible laminates.
- the use of a varnish in liquid form also makes it easy to change the thickness of this layer of varnish.
- the use of a varnish in liquid form provides access to a wider panel for usable solvents and also access to different liquid phase deposition techniques.
- this finishing step makes it possible to protect the edges of the flexible laminate by creating a moisture-tight barrier making it possible to prevent, in particular, the separation of the various layers forming the flexible laminate.
- the finishing step is carried out by spraying the varnish on the front or rear encapsulation layer.
- the finishing step is performed by deposition of the varnish with a brush on the front or rear encapsulation layer.
- the finishing step is carried out by curtain coating on the front or rear encapsulation layer.
- the method may comprise an additional step of surface texturing of the varnish.
- the additional step of surface texturing of the varnish can be performed during the polymerization of this varnish.
- the additional texturing step is performed by calendering.
- FIG. 1 is a schematic representation from above of a flexible laminate
- FIG. 2 is a schematic cross-sectional representation of a flexible laminate according to a first embodiment
- FIG. 3 is a schematic cross-sectional representation of a flexible laminate according to a second embodiment
- FIG. 4 is a flowchart illustrating a method of manufacturing a flexible laminate. In these figures, the identical elements bear the same numerical references.
- first and second intermediate layers In the following description, reference is made to first and second intermediate layers. It is a simple indexing to differentiate and name close but not identical elements. This indexing does not imply a priority of one element with respect to another and it is easy to interchange such denominations without departing from the scope of the present description. This indexing does not imply either an order in time for example to appreciate the disposition of the various layers constituting the flexible laminate or to appreciate its operation.
- front layer means the surface of the flexible laminate exposed first to the solar rays in the installed state of the flexible laminate.
- back layer in the following description means the layer opposite to the front layer, that is to say the surface which is last impacted by the solar rays during their passage through the laminate. the installed state of the laminate.
- transparent in the following description means a material, preferably colorless, through which the light can pass with a maximum intensity absorption of 10% for wavelengths in particular between 315 nm and 1300 nm.
- flexible is understood to mean an element which, during the application of a certain radius of curvature, does not lose its physical integrity or its electrical performance. In the present invention, the element should withstand without damage a radius of curvature of 100 cm.
- a flexible laminate 1 of photovoltaic cells 3 comprises at least one layer of photovoltaic cells 3 connected together, and a front layer 5 and a rear layer 7 of encapsulation of the photovoltaic cell layer 3.
- the front 5 and rear encapsulation layers 7 taking the layer of photovoltaic cells 3 sandwiched (visible in FIGS.
- this flexible laminate 1 has at least one lateral edge 8.
- the flexible laminate 1 is of substantially parallelepipedal shape, and in this case it has four lateral edges 8 (as shown with reference to FIG. ).
- this flexible laminate 1 may have other geometrical shapes and therefore a number of different lateral edges 8, such as for example a single lateral edge 8 in the case of a circular shape or three lateral edges 8 in the case of a triangular shape, or a greater number of lateral edges 8 in the case of more complex shapes.
- this flexible laminate 1 may for example be obtained by a conventional lamination process, that is to say by raising the temperature of a stack of the various layers forming this flexible laminate 1 and then by pressing on this stack during a specified time under vacuum or inert atmosphere for example, as described in more detail later.
- the flexibility of the laminate is obtained thanks to the constituent materials of the various layers composing the laminate.
- Such a flexible laminate 1 may constitute a photovoltaic module or a photovoltaic panel corresponding to an assembly of several photovoltaic modules together.
- photovoltaic module a most elementary electrical power generation unit (in direct current) constituted an assembly of photovoltaic cells 3 interconnected with each other completely protected from the external environment, that is to say as defined by the IEC-TS61836 standard.
- the flexible laminate 1 further comprises at least one transparent layer of varnish 9 based on polymeric deposited on one of the front layers 5 and / or rear 7 of encapsulation.
- the transparent layer of varnish 9 is disposed outside the flexible laminate 1, that is to say so as to be the first in contact with external aggressions.
- the transparent varnish layer 9 is configured to provide protection for the flexible laminate 1 and in particular against ultraviolet or moisture-related degradations which can lead to yellowing of at least the front layer 5 which may be detrimental to the proper functioning photovoltaic panel, or to impacts or scratches that may affect the integrity of the photovoltaic cells 3 or the encapsulation front layer 5 for example.
- the presence of this transparent layer of varnish 9 preserves the physical integrity of the flexible laminate 1 in time.
- this transparent varnish layer 9 can offer the flexible laminate 1 anti-fouling properties.
- the at least one lateral edge 8 of the flexible laminate 1 is covered with the transparent varnish layer 9.
- This arrangement of the transparent varnish layer 9 makes it possible to prevent any moisture entry between the layers. layers forming this flexible laminate 1 which could lead to delamination of the flexible laminate 1 at the side edges 8.
- the arrangement of the transparent varnish layer 9 on the at least one side edge 8 of the flexible laminate 1 contributes to the resistance of this flexible laminate 1 to external attacks over time.
- the at least one transparent layer of varnish 9 is constituted by a varnish based on a polymer chosen from polyurethane varnishes, acrylic-type varnishes, polyester-type varnishes, silicone-type varnishes, or varnishes of the same type. epoxy.
- the use of such varnishes makes it possible to guarantee a good compatibility thereof with the composite materials forming in particular the photovoltaic cells 3 and the front 5 and back 7 encapsulation layers. This makes it possible, among other things, to ensure good resistance of the flexible laminate 1 to the various mechanisms of damage mentioned above.
- some varnishes have self-healing properties. Thus, they have a fairly high resistance to impacts, to wear abrasive or scratch.
- the transparent varnish layer 9 has a thickness of less than 1 mm, preferably less than 0.5 mm. Such thicknesses for the transparent varnish layer 9 can be obtained using various deposition techniques described later. In addition, such a thickness for the transparent layer of varnish 9 does not affect the final thickness of the flexible laminate 1 and limits the necessary quantities of varnish, which allows among other things a control of the production costs of such a flexible laminate 1.
- the varnish may comprise at least one self-extinguishing additive, such as for example hexabromocyclododecane, in order to have flame retardant properties.
- the varnish may comprise at least one additive for improving the diffusion of light.
- the varnish may comprise at least one additive that makes it possible to convert photons of certain spectral ranges towards the spectral ranges of conversion of the photovoltaic cells 3, that is to say allowing conversion "up” or “down”. ".
- an up conversion two photons of relatively low energy are combined together to form a photon of energy sufficient to operate the photovoltaic panel.
- Such "up” conversion therefore occurs for the infrared radiation arriving on the flexible laminate 1.
- additives allowing up conversion can for example be chosen from doped rare earth ions, earth oxides. rare doped, or even doped rare earth fluorides.
- the varnish may comprise at least one additive that absorbs or reflects ultraviolet radiation having a wavelength of less than 315 nm, such as, for example, benzophenones, benzotriazoles, or steric hindered light stabilizers, also known.
- HALS for the abbreviation of Hindered Amine Light Stabilizer
- PEDA or other amino derivatives or amino-ether of 2,2,6,6-tetramethylpiperidine.
- the use of such a coating prevents the delamination of the various layers comprising flexible laminate 1 and possibly the degradation of some components of flexible laminate 1 because of the energy of ultraviolet radiation. Indeed, certain wavelengths of ultraviolet radiation are known to weaken plastic compounds and in particular to make them brittle. In addition, the absorption of these radiations does not have a significant impact on the conversion efficiencies of flexible laminate 1 because the wavelengths of these radiations are outside the spectral ranges of conversion, and therefore of interest, of the On the other hand, when the varnish is intended to be deposited on the encapsulation back layer 7, it may comprise an additive such as pigments for bringing a color to the photovoltaic module by reflection or by transmission.
- the varnish may comprise glass beads.
- the addition of glass beads in the composition of the varnish allows a better adhesion to the surface of the flexible laminate 1 by increasing the roughness of the face of the flexible laminate 1 having this transparent layer of varnish 9. Such an improvement in the adhesion allows an improvement in the safety of maintenance agents on steep roofs for example or on mobile supports or in case of surface moisture.
- the addition of glass beads makes it possible to open new applications for these photovoltaic modules, for example for the realization of pavements. Indeed, this modification of the adhesion, through the addition of glass beads in the varnish, allows the public to walk on such photovoltaic slabs safely due to the roughness created by these glass beads.
- the flexible laminate 1 may have a greater number of transparent layers of varnish 9, and especially when Additives are added to the latter to give it one or more of the properties listed above.
- the different additives can be mixed in a single varnish depending on their chemical compatibility so that the deposition of a single layer of varnish is sufficient to give the flexible laminate 1 different properties is necessary.
- the front and rear encapsulation layers 5 and 5 are layers of glass fiber fabric pre-impregnated with an encapsulating resin, such as, for example, an epoxy type resin. .
- an encapsulating resin such as, for example, an epoxy type resin.
- the use of a pre-impregnated fiberglass fabric facilitates the encapsulation of photovoltaic cells 3 to ensure cohesion between the glass fiber fabric and the photovoltaic cell layer 3.
- the flexible laminate 1 further comprises a first 11 and a second 13 intermediate layers disposed respectively between the encapsulation front layer 5 and the photovoltaic cell layer 3 and between the encapsulation back layer 7 and the photovoltaic cell layer 3.
- These first 11 and second 13 intermediate layers may for example consist of a dry dry glass fiber fabric, that is to say having no encapsulation resin.
- the addition of such layers may for example allow a better diffraction of the light at the level of the photovoltaic cell layer 3 in order to improve the production yields of the flexible laminate 1 for example.
- such first 11 and second 13 intermediate layers of glass fibers can improve the impact resistance of this flexible laminate 1.
- the flexible laminate 1 has a single transparent layer of varnish 9 disposed on the surface of the encapsulation front layer 5.
- the flexible laminate 1 may have a transparent layer of varnish 9 disposed on each front layer 5 and rear 7 of encapsulation.
- the flexible laminate 1 may have more than one transparent varnish layer 9 on one or the other of the encapsulation layers.
- the transparent varnish layer 9 can be deposited on one side of the flexible laminate 1 having a layer of photovoltaic cells 3 sandwiched between the front layer 5 and the encapsulation back layer 7, as for example example in the encapsulation front layer 5.
- the encapsulation back layer 7 may optionally be coated with a protective film which provides protection for the unvarnished surface of the flexible laminate 1 in its environment.
- this protective film can be integrated with the flexible laminate 1 before or after the laying of the transparent varnish layer 9.
- the encapsulation back layer 7 may be covered with varnish, such as varnish comprising pigments.
- the encapsulation front layer 5 is covered with the protective film.
- the protective film is transparent so as not to affect the yields of the flexible laminate 1.
- the flexible laminate 1 may further comprise the first 11 and second 13 intermediate layers.
- FIG. 4 there is schematically illustrated a method of manufacturing a flexible laminate 1 of photovoltaic cells 3 comprising a layer of photovoltaic cells 3 connected together, a front layer 5 and a rear layer 7 of encapsulation of the photovoltaic cell layer 3.
- the flexible laminate 1 is obtained by a conventional lamination process.
- the method comprises a step El constituting the stack of the front layers 5 and 7 rear encapsulation and the layer of If the flexible laminate 1 comprises the first 11 and second 13 intermediate layers, these first 11 and second 13 intermediate layers are arranged in the stack during this step El.
- the method then implements a step E2 of FIG. deposition in an oven of this stack of layers and a vacuum drawing step E3 to evacuate the air in the furnace and between the different layers of the stack.
- This step E3 can be implemented for a predetermined duration or can be controlled by pressure sensors arranged inside the oven.
- the process then implements a heating step E4 of the stack in order to allow the polymerization of the encapsulation resin and then a pressure step E5 on the stack to compress the different layers against each other for a predetermined time to form the flexible laminate 1.
- This predetermined time may for example correspond to the duration of the polymerization reaction of the encapsulation resin used.
- the vacuum pump is maintained in function so as to prevent any air bubbles from forming between the different layers of the laminate, these air bubbles possibly being due to the presence of air. in the furnace or gas emissions resulting from the heating of the various layers and in particular of the encapsulation resin.
- the method then performs a step of stopping the heating and ventilation of the furnace in order to reduce the pressure inside the furnace at atmospheric pressure and then a step of extracting the laminate thus obtained.
- the method may comprise a step of cutting the flexible laminate 1 in order to obtain a photovoltaic module of the desired size and shape.
- the method comprises a finishing step E6 in which a polymer-based varnish is applied to at least one of the front 5 or back 7 encapsulation layers.
- the polymer-based varnish is in a liquid form.
- a liquid varnish allows in particular to facilitate its deposition on the front layer 5 and / or rear 7 of encapsulation.
- the varnish has a composition such that when it dries or polymerizes, it forms the transparent layer of varnish 9.
- the use of a varnish allows during this finishing step E6 to modify as desired the thickness of this transparent varnish layer 9 to enhance certain properties of the flexible laminate 1 for example.
- the use of this varnish in liquid form makes it possible to have access to a wider panel for the solvents composing this varnish for example to improve the chemical compatibility and adhesion of this varnish with the resin and / or the fiberglass fabric on which this varnish is deposited.
- the use of this varnish provides access to many liquid phase application techniques.
- the finishing step E6 can be carried out by spraying the varnish on the encapsulation front layer 5 or back 7, by deposition of the varnish with a paintbrush on the front layer 5 or back 7 of encapsulation, or by curtain coating. (also known as curtain coating in English) on the front layer 5 or back 7 encapsulation.
- curtain coating also known as curtain coating in English
- the finishing step E6 is performed by spraying the varnish on the front layer 5 or rear 7 of encapsulation.
- this finishing step E6 by spraying allows a quick and easy deposit of the varnish on the front layer 5 or rear 7 of encapsulation, which allows in particular a reduction in the production costs of such flexible laminates 1.
- this step of E6 finish is achieved by curtain coating, it may be possible to simultaneously perform the deposition of several layers of varnish on the front layer 5 or rear 7 encapsulation.
- this finishing step E6 can be carried out in a single pass of the flexible laminate 1 to the station for performing the finishing step E6.
- these different deposition techniques allow to deposit the desired thickness and in a controlled manner on the front layer 5 or rear 7 of encapsulation.
- the varnish in liquid form can at least by capillary wetting, or even deposited voluntarily, on the flexible laminate 1 which allows this varnish to be deposited on the side edges 8, also called fields, of this flexible laminate 1 and in particular to prevent the entry of moisture between the different layers of this flexible laminate 1 by the lateral edges 8 of this flexible laminate 1.
- these deposition techniques can also make it possible to control the thickness of the layer transparent of varnish 9 deposited on the side edge 8 of this flexible laminate 1.
- Such protection of the fields of the flexible laminate 1 is not possible with the protective films known from the prior art.
- the arrangement of the varnish on the fields of the flexible laminate 1 makes it possible to create a moisture-tight barrier, which makes it possible, among other things, to prevent the separation of these different layers because of the humidity and thus to improve the longevity of the module photovoltaic.
- the method here and optionally includes an additional step of texturing E7 of the varnish.
- This additional texturing step E7 can for example be performed during the polymerization of this varnish, or before the polymerization of this varnish.
- This additional optional texturing step E7 can for example be carried out by calendering.
- This additional texturing step E7 may, for example, make it possible to provide an aesthetic side or even new features to the flexible laminate 1, such as, for example, better adhesion by mixing glass beads with the varnish.
- this additional texturing step E7 can also make it possible to improve the conversion efficiencies of this flexible laminate 1 by the diffraction phenomena induced by the texturing performed at the level of this transparent varnish layer 9.
- these different layers may have different compositions.
- one skilled in the art can use other types of encapsulation resins than those described in the present description without departing from the scope of the invention.
- the person skilled in the art use other means of implementing the finishing step E6 or the additional step E7 without departing from the scope of the present invention.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759895A FR3072829A1 (en) | 2017-10-20 | 2017-10-20 | FLEXIBLE LAMINATE OF PHOTOVOLTAIC CELLS AND METHOD OF MANUFACTURING SUCH A FLEXIBLE LAMINATE |
PCT/EP2018/078650 WO2019077085A1 (en) | 2017-10-20 | 2018-10-18 | Flexible laminate of photovoltaic cells and method for manufacturing such a flexible laminate |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3698411A1 true EP3698411A1 (en) | 2020-08-26 |
Family
ID=61132548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18799679.8A Withdrawn EP3698411A1 (en) | 2017-10-20 | 2018-10-18 | Flexible laminate of photovoltaic cells and method for manufacturing such a flexible laminate |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200287068A1 (en) |
EP (1) | EP3698411A1 (en) |
CN (1) | CN111226321A (en) |
FR (1) | FR3072829A1 (en) |
WO (1) | WO2019077085A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT522993B1 (en) * | 2019-09-18 | 2023-05-15 | Lenzing Plastics Gmbh & Co Kg | photovoltaic element |
AT522994A1 (en) * | 2019-09-18 | 2021-04-15 | Lenzing Plastics Gmbh & Co Kg | Photovoltaic element |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070295388A1 (en) * | 2006-05-05 | 2007-12-27 | Nanosolar, Inc. | Solar assembly with a multi-ply barrier layer and individually encapsulated solar cells or solar cell strings |
WO2009086545A1 (en) * | 2008-01-03 | 2009-07-09 | Madico, Inc. | Photoluminescent backing sheet for photovoltaic modules |
FR2935540B1 (en) * | 2008-08-29 | 2011-03-04 | Dickson Constant | PHOTOVOLTAIC ROLL-UP COMPOSITE AND SOLAR PROTECTION PROVIDER HAVING SUCH A COMPOSITE |
EP2587549A4 (en) * | 2010-06-25 | 2015-02-18 | Riken Technos Corp | Coating material composition for solar cell backsheet, and solar cell backsheet |
US9117952B2 (en) * | 2011-02-10 | 2015-08-25 | Lg Chem, Ltd. | Front sheet of solar cell, method of manufacturing the same and photovoltaic module comprising the same |
BR112013024526A2 (en) * | 2011-03-31 | 2019-09-24 | Dow Global Technologies Llc | thermoplastic resin formulation, sheet material, and photovoltaic module for converting incident electromagnetic radiation into electrical energy |
US20120282437A1 (en) * | 2011-05-04 | 2012-11-08 | Saint-Gobain Performance Plastics Corporation | Film for photovoltaic devices |
WO2013080918A1 (en) * | 2011-12-02 | 2013-06-06 | ダイキン工業株式会社 | Coating material, coating film, solar-cell-module backsheet, and solar-cell module |
CN106574067B (en) * | 2014-07-31 | 2020-01-10 | 富士胶片株式会社 | Laminated polyester film, method for producing same, protective sheet for solar cell, and solar cell module |
-
2017
- 2017-10-20 FR FR1759895A patent/FR3072829A1/en not_active Withdrawn
-
2018
- 2018-10-18 US US16/756,659 patent/US20200287068A1/en not_active Abandoned
- 2018-10-18 WO PCT/EP2018/078650 patent/WO2019077085A1/en unknown
- 2018-10-18 EP EP18799679.8A patent/EP3698411A1/en not_active Withdrawn
- 2018-10-18 CN CN201880067491.8A patent/CN111226321A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019077085A1 (en) | 2019-04-25 |
US20200287068A1 (en) | 2020-09-10 |
FR3072829A1 (en) | 2019-04-26 |
CN111226321A (en) | 2020-06-02 |
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