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
  • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
  • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
  • H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K1/00—Soldering, e.g. brazing, or unsoldering
  • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
  • B23K1/0016—Brazing of electronic components
• • 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
  • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• • 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
  • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
  • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
  • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
• • 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
  • H01L31/02—Details
  • H01L31/0224—Electrodes
  • H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
  • H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
  • H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
• • 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
  • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
  • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
  • H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
• • 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
  • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
  • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
  • H01L31/0516—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module specially adapted for interconnection of back-contact solar cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
  • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
  • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• • 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
  • B32B2307/202—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
  • 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
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
  • Y10T156/10—Methods of surface bonding and/or assembly therefor

Definitions

• the present invention relates to a device for interconnecting photovoltaic cells with rear-panel contacts, enabling the cells to be modulated, as well as a module for photovoltaic cells with rear-panel contacts comprising such a device, and a method for manufacturing such a module.
• the photovoltaic cells with rear-panel contacts are a particular type of cell which have their two metal electrodes on their rear face, that is to say their face opposite to the face receiving the solar radiation.
• Electrical connection pads are then formed respectively on each of said electrodes to allow their connection to an electrical circuit for collecting the photogenerated current.
• This configuration of the cells is particularly advantageous for producing a module comprising a plurality of such cells.
• a first possibility is, as for standard photovoltaic cells, to use copper strips welded respectively on the pads of each of the metal electrodes on the rear face.
• metal connectors may be employed.
• the document US 201 1/0126878 thus proposes to interconnect the cells by means of preformed copper ribbons to reduce the thermomechanical stresses due to the difference in coefficient of thermal expansion between the cell material (generally silicon) and the copper.
• a second possibility is, for the cells of the type "Metal Wrap Through” (MWT) or EWT ("Emitter Wrap Through”), to weld or paste the cells on a metallized film.
• MMT Metal Wrap Through
• EWT emitter Wrap Through
• backsheet the protective back sheet
• main functions are to provide insulation electrical and protect the module from external aggression, which fulfills this additional support role, a copper layer having the interconnecting metal tracks being deposited on the face of the protective backsheet in contact with the connection pads on the rear face cells.
• a disadvantage of this technique is the high cost of such a metallized film, which is made with methods similar to those used for the production of printed circuits.
• this technique involves a significant loss of material since the formation of the conductive tracks generally assumes the deposition of the metallized film on the entire surface of the protective backsheet followed by a chemical etching to keep only the regions intended to constitute the tracks .
• the conductive tracks are formed on a support in the form of a mesh (or "mesh" according to the English terminology) of a polymeric material, said net being interposed between the protective backsheet and cells.
• the assembly is then laminated with an encapsulating material which passes through the mesh of the net to ensure the mechanical strength of the module.
• Said electrically insulating layer may be present on each cell, on the connector or on the metallized film.
• said insulating layer may be an independent layer interposed between each cell and the connector or the metallized film.
• WO 2012/059534 discloses a particular example of such an electrically insulating layer, which is in the form of a fiberglass fabric. Said layer is placed between the cells and the connectors, the electrical connection being made through the fabric. This requires that the meshes of said fabric are dimensioned so that, during the connection by welding the cells on the connectors, the fusible fusible alloy passes through the fabric.
• this insulating layer involves an additional step in the manufacture of the module.
• An object of the invention is therefore to design a means for interconnecting photovoltaic cells with rear-panel contacts that overcomes the aforementioned drawbacks.
• the interconnection of the cells must be able to be achieved by implementing a minimum of steps and implementing the least possible separate components.
• a device for interconnecting photovoltaic cells with rear-panel contacts characterized in that it comprises at least one layer of a fabric of electrically insulating fibers, said fabric comprising at least one portion of wire or ribbon made of an electrically conductive material woven with said fibers and arranged to be flush with the surface of at least one region of the fabric to form an electrical contact area for connection to a contact pad on the face back of a cell.
• Said at least one portion of electrically conductive wire or tape may be parallel to the weft fibers of said fabric or to the warp fibers of said fabric.
• said portion of electrically conductive wire consists of a plurality of strands.
• the porosity of said fabric is chosen so as to allow impregnation of a photovoltaic cell encapsulation material during a step of lamination of the cells and of said device.
• said fabric is a three-dimensional fabric comprising at least two layers of electrically insulating fibers, said layers being secured to one another by a plurality of electrically insulating fibers.
• the electrically insulating fibers of said fabric may be glass fibers or textile fibers.
• Said fabric advantageously has a weight per unit area of between 10 and
• said portion of electrically conductive wire or tape is arranged to be flush with the surface of a region of a first face of the electrically insulating fiber fabric and at the surface of a region of a second face of the opposite fabric to the first face, so as to form electrical contact areas on two sides of said interconnection device.
• the fabric may advantageously contain fibers made of a material for encapsulating photovoltaic cells, said material being adapted to impregnate the tissue and encapsulate the photovoltaic cells during a step of lamination of the cells and of said device.
• Another subject of the invention relates to a photovoltaic cell module with interconnected rear-facing contacts, comprising a plurality of photovoltaic cells with rear-panel contacts and an interconnection device as described. above arranged along the rear face of the cells, the arrangement of the electrical contact areas on the surface of the electrically insulating fiber fabric of said device being chosen so that the contact pads of the cells are integral with the contact areas of said device and that said contact pads are electrically insulated from each other by a region of the electrically insulating fiber cloth layer located between said pads.
• the interconnection device provides the electrical connection of at least one contact pad of a cell to a contact pad having a reverse polarity of an adjacent cell via a same electrical contact zone or through two distinct electrical contact zones, said zones being electrically connected by a ribbon arranged transversely to said zones.
• said module may comprise, between the rear face of said cells and the interconnection device, at least one layer of a fabric made of electrically insulating fibers.
• the cells and the interconnection device may be encapsulated in an encapsulation material, said material impregnating the fabric of the interconnection device.
• Another object of the invention relates to a method of manufacturing a module comprising a plurality of photovoltaic cells with interconnected rear-facing contacts, which comprises:
• the electrical connection of the pads with the electrical contact zones is made by welding.
• the electrical connection of the pads with the electrical contact areas is achieved by gluing by means of a conductive adhesive.
• Said method may further comprise a step of lamination of the device connected to the cells with an encapsulating material, said material impregnating the mesh of the fabric.
• said method comprises inserting an electrically insulating fabric between the interconnection device and the rear face of the photovoltaic cells before making the electrical connection between the pads and the zones. electrical contact, then the realization of said electrical connection by providing an electrically conductive material, said material being able to pass through said fabric.
• the provision of the interconnection device advantageously comprises weaving the electrically insulating fibers and said at least one portion of electrically conductive wire or tape to form the fabric.
• FIG. 1 is a sectional view, before lamination, of the components of a module according to one embodiment of the invention
• FIG. 2 schematically illustrates an example of interconnection of cells with contacts on the rear face
• FIGS. 3A and 3B illustrate two embodiments of the interconnection device in which the electrically insulating fiber fabric is a three-dimensional fabric
• FIG. 4 illustrates an embodiment of a module in which an electrically insulating layer is interposed between the rear face of the cells and the interconnection device
• FIGS. 5 and 6 illustrate examples of modules according to the invention.
• Figure 1 is a sectional view of the components necessary for the realization of a module comprising interconnected photovoltaic cells, before the lamination step.
• the module may comprise a larger number of photovoltaic cells, which may for example be arranged in rows and columns.
• An interconnection device 1 is arranged along the rear faces of the cells PV1, PV2.
• said device 1 comprises a fabric of electrically insulating fibers 10.
• the fabric also includes weft fibers perpendicular to the warp fibers.
• the device 1 comprises at least a portion 100 of electrically conductive wire or tape arranged among the fibers of the fabric, and flush on one side of the fabric (so-called front face) so as to form a zone 101 of electrical contact.
• the zone 101 being put in vis-à-vis an interconnect pad located on the rear face of a photovoltaic cell, it can be connected electrically (reference 102) thereto by any known means such as welding, conductive glue, etc.
• This device has the advantage of providing an electrical connection by a contact between the electrical contact zone and the contact pad. It is therefore not necessary to size the fiber fabric for the passage of the interconnection material, whether it is a fusible alloy in the case of a weld or glue.
• said portion 100 of electrically conductive wire or tape is arranged to be flush with two regions of the front face of the fabric, so as to form two contact areas electrical 101 vis-à-vis two contact pads of each of the two cells.
• the electrical contact areas formed by the outcropping of the portion of electrically conductive wire or tape to the fabric surface may be on two opposite sides of the fabric.
• the conductive areas of the fabric disposed opposite the face of the cell are intended to allow contact with one or more ribbons for obtaining electrical connections to the outside.
• portion of wire or ribbon means that the electrically conductive wire or ribbon does not extend over the entire length or width of the interconnection device 1, but over a portion thereof sufficient to Interconnect two adjacent photovoltaic cells.
• the portion of wire or ribbon does not have a length as large as that of the warp and / or weft son.
• the interconnection device may therefore comprise several distinct portions of wire or ribbon extending on the same line, but not electrically connected to each other.
• the interconnection device has electrically insulating regions 103 which allow isolating the electric contact areas 101 from the regions of the cell other than the contact pads.
• the portion of wire or ribbon is arranged relative to the fibers of the fabric so that between two areas of electrical contact, the wire or ribbon passes under the fibers of the fabric: these regions of the device are electrically insulating because of the presence of the fibers on the surface.
• the fabric may be made with fibers of different diameters to adjust the conductive regions and the insulating regions.
• the insulating regions 103 may be made with larger fibers to provide a better overlap of the underlying wire or conductive strip portion.
• the front face of the module (intended to receive the solar radiation) is covered with a glass plate 4 intended to protect the front face of the cells.
• backsheet The rear face of the module is in turn covered by a protective sheet 5 called "backsheet”.
• the electrical contact zones 101 of the device 1 are electrically connected to the contact pads of the cells PV1, PV2.
• connection can be made by any type of conventional method such as welding or gluing.
• the setting in module can, for example, include a lamination step, during which the encapsulation material or materials previously added to the various components of the module become (n) viscous, impregnated (s) the fabric because of the porosity of it and encapsulate (s) the different cells.
• the invention is therefore not limited to a particular module setting technique.
• the device described above has the advantage of being inexpensive and not causing loss of material.
• the same device ensures both the electrical connection of the cells
• FIG. 2 illustrates, from below, the principle of interconnection of the + and - poles of four cells PV1 to PV4 of a module.
• each cell is schematized as a rectangle with three aligned positive pads and three aligned negative pads.
• the contact pads + of the cell PV1 are electrically connected to the contact pads - of the adjacent cell PV2 by a first portion 100a of electrically conductive wire or tape.
• the contact pads + of the PV2 cell are electrically connected to the contact pads - of the adjacent cell PV3 by a second portion 100b of electrically conductive wire or tape.
• the contact pads + of the cell PV3 are electrically connected to the contact pads - of the adjacent cell PV4 by a third portion 100c of electrically conductive wire or tape.
• portions 100a and 100c are aligned, they are not part of a continuous wire or ribbon and therefore they are not electrically connected.
• the arrangement of the portions of electrically conductive yarn or tape in the insulating fiber fabric, and regions in which these portions are flush with the surface of the fabric, is defined according to the electrical wiring plane of the cells within the module.
• the insertion of the portions of electrically conductive wire or tape is performed during weaving of the fabric.
• the electrically insulating fiber fabric has a satin or twill type armor rather than a linen type.
• the satin or twill type weaves exhibit a greater variety of patterns and allow to better adapt to cabling constraints and by providing a greater freedom of arrangement portions of electrically conductive wire or tape.
• the definition of these types of armor is known as such and will not be described in detail here.
• the electrically insulating fibers of the fabric are advantageously glass fibers or textile fibers such as polyamide for example.
• the fabric typically has a basis weight of between 10 and
• the fabric advantageously has a sufficient porosity that allows the impregnation of the encapsulation material (s) of the photovoltaic cells during a possible lamination step performed during the setting in module.
• the encapsulating material which is generally a thermoplastic polymer or an elastomer such as EVA for example, becomes viscous under the effect of the heating implemented during the lamination and is able to pass through the meshes of the fabric of the so to impregnate it.
• the fabric does not prevent a homogeneous distribution of the encapsulation material in the module.
• the electrically insulating fiber fabric may be impregnated with a material to give it a certain dimensional stability.
• said fabric may comprise fibers made of an encapsulating material (for example a thermoplastic) intended to melt during the lamination step.
• an encapsulating material for example a thermoplastic
• the fabric may be a so-called "3D" (three-dimensional) fabric comprising at least two layers 1 1, 12 of electrically insulating fibers 10, said layers 1 1, 12 being secured to one another by a plurality of electrically insulating fibers (not shown).
• 3D three-dimensional
• the fibers forming each of the layers may be identical or different.
• the electrical contact areas 101 may be made by a portion of electrically conductive wire or tape, for example copper, silver or a copper-based alloy or silver.
• the area of each electrical contact zone intended to be connected to a contact pad is preferably between 1 and 7 mm 2 .
• the section of the wire or ribbon is typically between 0.1 and 0.5 mm 2 .
• a copper ribbon 2 mm wide and 0.1 mm thick may be used.
• it When it is a wire, it can be made of a single strand or a plurality of parallel strands arranged sufficiently close to each other to be connected to the same pad of a cell. In the latter case, said strands may optionally be separated from one another by one or more electrically insulating fibers.
• the advantage of a plurality of strands with respect to a ribbon of equivalent cross-section is that it makes it possible to obtain a more flexible conductive portion, which reduces the thermomechanical stresses experienced by the latter during weaving and when module.
• an electrically insulating porous layer 13 (for example, a fiberglass fabric) can be inserted between the rear face of the cells and the interconnection device.
• This layer 13 reinforces the electrical isolation of the contact pads of the different cells.
• Such a layer is of particular interest when the interconnection device comprises regions 101 'where a portion 100 of electrically conductive wire or tape is flush with the surface of the fabric but which are not intended to be connected to the contact pads of the cells. . These regions 101 'are therefore functionally different from the electrical contact zones 101.
• the electrically insulating layer 13 makes it possible to avoid any unwanted electrical connection between the regions 101 'of the interconnection device and the contact pads of the cells.
• Said layer 13 may be formed of the same electrically insulating fabric as the interconnection device (without any conductive wire or ribbon in this case), or of a different fabric.
• the interconnection device provides the electrical connection of at least one contact pad of a cell to a contact pad having a reverse polarity of an adjacent cell.
• connection is made by a same electrical contact zone which is arranged along said pads.
• connection is made by two distinct electrical contact zones, said zones being electrically connected to each other by a portion of ribbon arranged transversely to said zones.
• FIGS 5 and 6 illustrate two examples of implementation of the invention.
• FIG. 5 schematically illustrates a module of 2x2 photovoltaic cells with rear-panel contacts PV1 to PV4.
• Each cell has four contact pads connected to an output + and three contact pads connected to an output -.
• the pads + of the cell PV2 are connected to the pads - of the cell PV4 by two sets of conductive wires 101, 101a, said portions being electrically connected by a ribbon 104 arranged transversely to said portions.
• the ribbon portion 104 may be welded to each of said wire portions 101, 101a, on the face opposite to the cells of the interconnect device 1.
• the ribbon portion may be integrated into a three-dimensional tissue between two layers of said tissue.
• FIG. 6 schematically illustrates another module of 2x2 photovoltaic cells with rear-panel contacts PV1 to PV4.
• Each cell has three contact pads connected to an output + and three contact pads connected to an output -.
• three wire portions 101 connect the contact pads - of the PV1 cell to the contact pads + of the PV3 cell.
• the contact pads + of the cell PV2 are connected to the contact pads - of the cell PV4 by three portions of wire 101b.
• the contact pads - of the cell PV3 are connected to the contact poles + of the cell PV4 by two separate wire portions 101a, 101d and connected by a ribbon portion 104, which extends transversely to said portions 101a, 101 d.
• the electrodes are formed on the rear face by interdigitated fingers.
• An adhesive point or a weld zone is then formed on the electrical contact zones of the fabric and / or at the level of the electrodes according to the interconnection plane.
• the interconnection device is tailored according to the module to be produced, taking into account in particular the number and type of cells and the interconnection plane of said cells.

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• Engineering & Computer Science (AREA)
• Condensed Matter Physics & Semiconductors (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• General Physics & Mathematics (AREA)
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• Microelectronics & Electronic Packaging (AREA)
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• Life Sciences & Earth Sciences (AREA)
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• Sustainable Energy (AREA)
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• Mechanical Engineering (AREA)
• Photovoltaic Devices (AREA)

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• 2012
  • 2012-12-18 FR FR1262258A patent/FR2999804B1/fr not_active Expired - Fee Related
• 2013
  • 2013-12-18 US US14/652,626 patent/US9653636B2/en not_active Expired - Fee Related
  • 2013-12-18 CN CN201380066087.6A patent/CN104871322A/zh active Pending
  • 2013-12-18 KR KR1020157017490A patent/KR20150099535A/ko not_active Application Discontinuation
  • 2013-12-18 JP JP2015548478A patent/JP2016500487A/ja active Pending
  • 2013-12-18 WO PCT/EP2013/077077 patent/WO2014095991A1/fr active Application Filing
  • 2013-12-18 EP EP13815463.8A patent/EP2936565A1/de not_active Withdrawn

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