EP1614165A2 - MODULE PHOTOVOLTAIQUE ET PROCEDE DE FABRICATION D’UN TEL MODULE - Google Patents
MODULE PHOTOVOLTAIQUE ET PROCEDE DE FABRICATION D’UN TEL MODULEInfo
- Publication number
- EP1614165A2 EP1614165A2 EP04742507A EP04742507A EP1614165A2 EP 1614165 A2 EP1614165 A2 EP 1614165A2 EP 04742507 A EP04742507 A EP 04742507A EP 04742507 A EP04742507 A EP 04742507A EP 1614165 A2 EP1614165 A2 EP 1614165A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- cells
- plates
- photovoltaic cells
- cell
- 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- Withdrawn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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- -1 polybutylene Polymers 0.000 claims abstract 2
- 229920001748 polybutylene Polymers 0.000 claims abstract 2
- 239000004020 conductor Substances 0.000 claims description 41
- 239000011521 glass Substances 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
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- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 6
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- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
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- 239000011261 inert gas Substances 0.000 abstract 2
- 230000002000 scavenging effect Effects 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
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- 239000011368 organic material Substances 0.000 description 2
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- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
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- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
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- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
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- 238000010183 spectrum analysis Methods 0.000 description 1
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- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- H01L31/0508—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
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
- Photovoltaic module and method of manufacturing such a module
- the invention relates to a photovoltaic module comprising an assembly of photovoltaic cells, arranged side by side between front and rear plates, and a sealing joint disposed between the plates and delimiting a sealed interior volume, maintained at a pressure below atmospheric pressure. , in which the photovoltaic cells are arranged.
- photovoltaic cells are covered with a network of electrodes and connected to each other by welding of metal strips.
- the assembly thus formed is then placed between two sheets of polymer, themselves sandwiched between two glass substrates.
- the assembly is then heated to around 120 ° C to strongly soften the polymer, make it waterproof and transparent and ensure the mechanical cohesion of the module.
- sealing especially against the ingress of moisture, is often not guaranteed in the long term.
- Document WO03 / 038911 describes a method of manufacturing a photovoltaic module comprising the assembly of photovoltaic cells arranged side by side between front and rear plates.
- a mineral sealing joint placed between the plates, delimits a sealed interior volume inside which all the cells are arranged.
- the sealing operation takes place at a temperature between 380 ° C and 480 ° C for a period of less than 30 minutes.
- the material of the sealing joint softens considerably and makes the interior volume of the sealing joint watertight towards the outside, which makes it possible to avoid any diffusion of water towards the interior of the module throughout the life of the module.
- the pressure of the interior volume is of the order of one atmosphere at the sealing temperature.
- the final pressure, after cooling to room temperature, is lower, of the order of 400millibars.
- a vacuum vis-à-vis the outside therefore forms automatically inside the assembly and causes the application of a force by the front and rear plates on the cells. This force ensures contact between the cells and connecting conductors deposited on the front and rear plates without the need for solder between the cells and the connecting conductors.
- the application of a temperature of the order of 400 ° C. risks deteriorating the quality of the photovoltaic cells currently available on the market.
- a photovoltaic cell can be formed on a solid silicon substrate cut in the form of slices a few hundred microns thick.
- the substrate can consist of monocrystalline silicon, polycrystalline silicon or semiconductor layers deposited on a substrate glass or ceramic. It has on its surface a network of narrow electrodes, generally in silver or aluminum, intended to drain the current towards one or more main electrodes from 1 to a few millimeters in width, also in silver or aluminum.
- rear connection conductors associated with a first cell are connected to the front connection conductors associated with a second, adjacent cell. If the module has more than two cells, the rear connection conductors of the second cell are then connected to the front connection conductors of the next cell, all the cells thus being electrically connected in series.
- a rear connection conductor of a cell and the associated front connection conductor of the neighboring cell can be formed by the same interconnection conductor.
- the connecting conductors of the end cells serve as connectors to the outside.
- An assembly of photovoltaic cells in matrix form can comprise conductors of transverse links connecting the cells electrically in parallel.
- the transverse connection conductors constituted by a copper core and a surface deposit of a tin-lead alloy, are soldered with a tin-lead alloy on connection areas of the cell.
- the connecting conductors can also be produced by depositing a silver paste on a module support passover according to the desired pattern, then baking at high temperature.
- the front and rear connection conductors are formed on the internal face of the front and rear glass substrates opposite the location of each of the cells.
- the connecting conductors are then soldered to the cells and to interconnection elements intended for connect the cells in series.
- the space remaining between the glass substrates is then filled with an organic resin.
- connection conductors and the assembly of the cells constitutes a handicap since they are long and costly operations which can break the cells and entail a high production cost.
- the object of the invention is to remedy these drawbacks and, in particular, to produce a module having good long-term tightness and to simplify the process for manufacturing a photovoltaic module, so that its manufacture can, preferably, be carried out at room temperature, while reducing manufacturing costs.
- Figures 1 and 2 illustrate the steps of assembling a particular embodiment of a method of manufacturing a photovoltaic module according to the invention.
- Figures 3 and 4 illustrate, in section along the axis AA, a particular embodiment of the suction step of a method of manufacturing a photovoltaic module according to Figure 2.
- Figures 5 and 6 show two particular embodiments of a photovoltaic module according to the invention.
- Figures 7 and 8 illustrate two particular embodiments of a method for producing a photovoltaic module according to the invention.
- Figures 9 and 10 show a particular embodiment of a photovoltaic module according to the invention respectively in section along the axis B-B and in view from below.
- Figures 11 and 12 show various particular embodiments of interconnection conductors of a photovoltaic module according to the invention.
- Figure 1 shows the assembly of photovoltaic cells 1 arranged side by side between front plates 2 and rear 3 and an organic sealing joint 4.
- the plates 2 and 3 and the photovoltaic cells are held in parallel .
- these can be pre-fixed, as well as the corresponding conductors of electrical interconnection, before assembly of the plates 2 and 3, on one of the plates, for example on the plate back 3.
- They can, for example, be pre-bonded using an organic solvent-free adhesive, for example using a derivative from the polyvinyl family.
- the adhesive can be made of the same material as the organic seal 4, for example by a derivative of poly-butylene.
- the organic seal 4 can be deposited on one of the plates 2 and 3, for example on the front plate 2, at the periphery of the assembly of the photovoltaic cells 1. Then, the front plates 2 and rear 3 are sealed by the 'Intermediate of the organic seal 4, which can be of a thermoplastic nature, for example from the family of poly-butylenes.
- the organic seal 4 can be made of any organic material capable of providing an effective barrier to humidity and to gases, in particular to oxygen.
- the sealed interior volume 5 is filled with a neutral gas.
- the neutral gas can consist of any pure or mixed gas compatible with the materials of the elements arranged inside the sealed volume, for example argon.
- the concentration of gases, in particular argon can be determined by spectral analysis, which makes it possible to control the atmosphere and the composition of gases inside the sealed interior volume (5).
- the assembly is preferably compressed by applying pressure P1 on the plates 2 and 3.
- the organic seal 4 delimits a sealed interior volume 5 to the inside of which are arranged all the photovoltaic cells 1.
- the material of the organic seal 4 is preferably from the family of poly-butylenes, without solvent, for example poly-iso-butylene.
- the poly-butylene gasket remains flexible and its color, initially matt black, changes to shiny black, at the interface with the plates 2 and 3, which eventually makes it possible to check the seal. .
- the mechanical characteristics of the joint remain unchanged, although the joint retains a certain elasticity.
- the module compression step thus makes it possible to control the thickness of the module.
- the depression is formed by suction in order to ensure sufficient contact pressure to allow the electrical conduction necessary for the proper functioning of the solderless module of the interconnection contacts between cells.
- the suction is carried out after sealing the module.
- the suction creates a vacuum in the sealed interior volume 5, up to 0.5 bar.
- the suction (shown schematically by dotted arrows) is, for example, carried out by means of a perforation tool, for example by means of a syringe 6 passing through the organic seal 4 and connected to a device d external suction (not shown).
- the perforation tool is dimensioned so that when it is removed, the seal is not disturbed.
- the syringe 6 is introduced into the organic seal 4 near a corner of the module.
- the residual elasticity of the organic seal allows the automatic filling of the small penetration orifice of the syringe when it is withdrawn.
- the application of pressure P2 on two perpendicular faces 7a and 7b of the seal on either side of the penetration orifice of the syringe allows close this hole and ensure the seal of the joint.
- the method preferably includes, before creating the vacuum, a neutral gas scanning step, possibly carried out by means of two syringes, a first syringe allowing to aspirate and a second syringe making it possible to supply the gases simultaneously. neutral.
- the sealed internal volume 5 is maintained at a pressure substantially lower than atmospheric pressure, which causes the application of a force by the front plates 2 and rear 3 on the photovoltaic cells 1
- This force ensures contact between the cells and connecting conductors, ensuring the electrical connections between the cells, without the need for soldering between the cells and the connecting conductors.
- the material constituting the connecting conductors can be based on copper, a copper alloy or any other metallic material with high conductivity which ensures good contact with the photovoltaic cells 1 under the action of the vacuum force.
- the seal of the organic seal 4 is obtained after compression of the front and rear plates, with the organic seal present at the periphery of the entire module.
- the thickness of the joint determined by the amount of organic material deposited and by the compression force during sealing, then remains constant. The process being carried out at room temperature, it is compatible with all photovoltaic cells. .
- a reinforcing system 8 may optionally be arranged around the sealing joint 4, to improve the strength of the module.
- the front 2 and rear 3 plates can both be glass plates, for example made of soda-lime glass 1, 6 to 6 mm thick, a typical value being 3 to 4 mm for the front plate 2 and 2 to 4mm for the back plate 3.
- the glass is advantageously clear or extra white glass, that is to say containing little iron, because the optical transmission of such a glass is very good.
- the glass may also have been thermally toughened in order to increase its mechanical strength.
- the front plate 2 of the photovoltaic module is preferably made of glass, while the rear plate 3 consists of a rigid sheet, insulating at least on the surface, of plastic material or metal, for example aluminum or steel stainless treated on the surface so as not to be conductive on the surface. Such a sheet allows protect the photovoltaic cells while clearly reducing (up to 2 times) the weight.
- the method can, moreover, include a step of chemical attack, basic for example, of the front glass plate, carried out before assembly of the module, so as to roughen the internal face 9 of the front glass plate, it that is to say the face oriented towards the photovoltaic cells 1, as shown in FIG. 5.
- a step of chemical attack basic for example, of the front glass plate, carried out before assembly of the module, so as to roughen the internal face 9 of the front glass plate, it that is to say the face oriented towards the photovoltaic cells 1, as shown in FIG. 5.
- the treatment can be carried out by an anisotropic attack on the glass, the external face of the front plate 2 being protected, so as to give a texture to the internal face 9 of the front plate 2.
- This technique makes it possible to obtain an improvement in the efficiency of the photovoltaic module.
- This texturing can also be carried out by tempering the glass, after protecting the external face of the glass, for example, by chemical attack.
- the photovoltaic module shown in FIG. 6 further comprises, between the photovoltaic cells 1 and the rear plate 3 and / or between the photovoltaic cells 1, a substance 10 intended to absorb infrared and ultraviolet radiation and to emit radiation in a visible spectral band corresponding substantially to the maximum of the absorption band of the photovoltaic cells.
- Substance 10 comprises, for example, poly methyl methacrylate (PMMA) and / or a metal salt and or a pigment consisting of a compound mainly containing mixed rare earth oxides based on lanthanum, erbium, terbium , neodymium and praseodymium, alkali metals or alkaline earth metals. These oxides transform ultraviolet radiation into visible radiation having a wavelength between 550 nm and 650 nm. We can thus increase the yield of photovoltaic module. The absorption of infrared radiation lowers the operating temperature of the photovoltaic cells.
- the method successively comprises the assembly and the partial sealing of the module, so as to leave two openings 13a and 13b in the sealing joint 4, and a scanning by neutral gases, shown diagrammatically by dotted arrows 14, of the interior volume by means of the two openings 13a and 13b.
- the vacuum is then established by suction via the two openings 13a and 13b. After the aspiration, the two openings 13a and 13b are blocked without damaging the vacuum. It is also possible to plug one of the openings 13 after scanning and to perform the suction via the other openings 13, which is then plugged.
- the method successively comprises the assembly of the module and, in a sealed enclosure 17, a sweeping by neutral gases and the establishment of the vacuum by suction.
- the sealing of the front 2 and rear 3 plates is then carried out by compression 18 of the sealing joint 4, the front 2 and rear 3 plates being arranged between two preformed parts 19 and 20 also making it possible to establish the sealed enclosure 17.
- the module according to the invention can be large, the glass having a corresponding thickness, without the need to add a frame.
- the invention applies to all types of photovoltaic modules, including modules comprising photovoltaic cells 1 each having poles positive and negative arranged on the same side of the cell, as described below.
- the photovoltaic module shown in FIG. 9 comprises photovoltaic cells 1 arranged side by side between the internal faces of the front plates 2 and rear 3. Only three cells 1a, 1b and 1c are shown in FIG. 9 for reasons of clarity. Positive and negative poles of each cell are brought back on the back face of this one.
- connection of a positive pole of a cell and a negative pole of the adjacent cell is carried out very simply by means of at least one interconnection conductor constituted by a metal strip, for example by a strip of paste d silver, deposited, for example by screen printing, on the internal face of the rear plate 3 before placing the cells. It is also possible to carry out the electrical interconnection of cells by metallic conductors pre-fixed by an adhesive on the rear plate of the module.
- a metal strip 1 1 a deposited on the rear plate 3, is positioned on an area connecting the locations of the two adjacent cells 1 a and 1 b, so as to come into contact on the rear face of the cell
- the area has the shape of a stair step.
- a network of interconnection conductors (1 1 ) is thus formed on the back plate 3, before placing the cells.
- the width of the strips of silver paste 1 1 is large, each strip of silver paste 11 being able, for example, to have a width of between 3mm and 10 mm, more typically between 3mm and 5 mm.
- the interconnections can also be prepared by screen printing.
- the seal 4 is deposited on one of the plates or on the two plates 2 and 3, according to a path described below, that is to say along the four sides.
- the organic sealing joint 4 is located at the periphery of the surface common to the two front and rear plates 2 and 3. It is thus arranged on the periphery of the rear plate 3 except on the left side for the back plate 3, in order to allow access from the outside to conductors 12 for connection with the outside.
- a conductor 12 for connection to the outside of the end cells (1a and 1c) can project outwards beyond the joint 4.
- the seal 4 can then be arranged, as described above, between the front 2 and rear 3 plates, at the periphery of the module, so as to delimit a sealed interior volume inside which all the cells 1 are arranged.
- the sealing joint 4 has a thickness of several hundred microns, which mainly depends on the thickness of the cells 1, to which is added the thickness of the metal strips 11 constituting interconnection conductors, formed on the front face of the back plate 3, connecting cells 1 in series connecting a positive pole of cell 1 a to a negative pole of adjacent cell 1 b.
- an interconnection conductor 15 connects a front face of a first cell 1 a and a rear face of a second adjacent cell 1 b.
- the interconnection conductor 15 and constituted by a rigid material, for example by an alloy of copper and magnesium or by hardened copper, retaining all of its electrical conductivity.
- a first corrugated end 16a is disposed between the front face of the first cell 1a and the internal face of the front plate 2.
- a second corrugated end 16b is disposed between the rear face of the second cell 1b and the internal face of the plate rear 3.
- the intermediate part of the interconnection conductor, disposed between the adjacent cells 1 a and 1 b is not wavy. In a variant, one of the ends 16 can be produced without undulation.
- a corrugated interconnection conductor 15 can be used to connect the positive and negative poles of two adjacent single-sided cells, that is to say each having positive and negative poles arranged on the same side of the cell. This undulation makes it possible to improve, through a spring effect, the contact between the cell 1 and the interconnection conductor 15.
- Interconnection conductors 15, constituted by a rigid material, connecting the photovoltaic cells 1 to one another can have any profiled shape, for example a section in the form of a U, a W or a V, as shown in Figure 12, so as to obtain a spring effect between the photovoltaic cells 1 and the corresponding plate 2 or 3.
- the spring effect makes it possible to compensate for variations in thickness of the cells and / or the front and rear plates and variations due to the thermal expansion of the constituent elements of the module and, thus, of limiting the risk of breakage of the cells by ensuring constant electrical contact between the cells 1 and the interconnection conductors 15.
- the interconnection conductors 15 can also have a helical shape.
- the method according to the invention can be applied to the production of photovoltaic modules, then of solar generators, from square, rectangular or round photovoltaic cells and whose characteristic dimensions can range from a few centimeters to several tens of centimeters.
- the cells are preferably square cells whose side is between 8cm and 30cm.
- the strips of silver paste can be deposited on the internal face of the front plate.
- the invention applies to all types of photovoltaic cells, not only to silicon, monocrystalline or polycrystalline photovoltaic cells, but also to cells of gallium arsenide, to cells formed by silicon ribbons, to cells with silicon beads formed by a network of silicon beads inserted in conductive sheets, or in photovoltaic cells formed by depositing and etching a thin layer of silicon, copper / indium / selenium or cadmium / tellurium on a plate glass or ceramic.
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0304729A FR2853993B1 (fr) | 2003-04-16 | 2003-04-16 | Procede de realisation d'un module photovoltaique et module photovoltaique realise par ce procede |
FR0313489A FR2862427B1 (fr) | 2003-11-18 | 2003-11-18 | Procede de fabrication d'un module photovoltaique et module obtenu |
PCT/FR2004/000925 WO2004095586A2 (fr) | 2003-04-16 | 2004-04-14 | Module photovoltaique et procede de fabrication d’un tel module |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1614165A2 true EP1614165A2 (fr) | 2006-01-11 |
Family
ID=33312269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04742507A Withdrawn EP1614165A2 (fr) | 2003-04-16 | 2004-04-14 | MODULE PHOTOVOLTAIQUE ET PROCEDE DE FABRICATION D’UN TEL MODULE |
Country Status (6)
Country | Link |
---|---|
US (2) | US20060272699A1 (fr) |
EP (1) | EP1614165A2 (fr) |
JP (1) | JP2006523946A (fr) |
AU (1) | AU2004231893A1 (fr) |
CA (1) | CA2522405A1 (fr) |
WO (1) | WO2004095586A2 (fr) |
Families Citing this family (25)
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US20070215195A1 (en) * | 2006-03-18 | 2007-09-20 | Benyamin Buller | Elongated photovoltaic cells in tubular casings |
DE102006031300A1 (de) * | 2006-06-29 | 2008-01-03 | Schmid Technology Systems Gmbh | Verfahren zur Dotierung von Siliziummaterial für Solarzellen, entsprechend dotiertes Siliziummaterial und Solarzelle |
EP1959502A1 (fr) * | 2007-02-14 | 2008-08-20 | Imphy Alloys | Module photovoltaïque et modules de production d'énergie ou de lumière |
WO2008141878A1 (fr) * | 2007-05-24 | 2008-11-27 | International Business Machines Corporation | Procédé pour mettre en contact des modules photovoltaïques |
FR2917899B1 (fr) * | 2007-06-21 | 2010-05-28 | Apollon Solar | Module photovoltaique comprenant un film polymere et procede de fabrication d'un tel module |
DE102008013522B4 (de) * | 2008-03-07 | 2015-02-19 | Hanwha Q.CELLS GmbH | Solarmodul mit Glas-Substrat, Polymer-Versiegelungselement und im Substratrandbereich angeordneter Dichtungseinrichtung |
DE102008031279A1 (de) * | 2008-07-02 | 2010-05-27 | Reis Robotics Gmbh & Co. Maschinenfabrik | Anlage und Verfahren zur Herstellung eines Solarzellenmoduls |
US20110315187A1 (en) * | 2008-12-24 | 2011-12-29 | Fuji Electric Co., Ltd. | Photovoltaic module |
DE102009009036A1 (de) | 2009-02-16 | 2010-08-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Photovoltaisches Modul und Verfahren zu dessen Herstellung |
DE102009016735A1 (de) * | 2009-04-09 | 2010-10-21 | Schott Ag | Photovoltaikmodule mit reduziertem Gewicht |
DE102009036458A1 (de) * | 2009-08-06 | 2011-02-10 | Yamaichi Electronics Deutschland Gmbh | Solarmodul und Verfahren zur Herstellung desselben |
WO2011041806A2 (fr) * | 2009-10-05 | 2011-04-14 | Inova Lisec Technologiezentrum Gmbh | Élément sous vide et procédé de production |
FR2953993B1 (fr) * | 2009-12-15 | 2012-06-15 | Commissariat Energie Atomique | Dispositif electrique et/ou electronique a element elastique de contact |
DE102010007131A1 (de) * | 2010-02-05 | 2011-08-11 | Reinhausen Plasma GmbH, 93057 | Solarzellenstring und Verfahren zu dessen Herstellung |
DE102010010870A1 (de) * | 2010-03-10 | 2011-09-15 | Ife Eriksen Ag | Solarmodul mit vorder- und rückseitiger Glasabdeckung |
FR2968458B1 (fr) | 2010-12-02 | 2013-08-16 | Apollon Solar | Module photovoltaïque a dépression contrôlée, utilisation d'un getter d'oxygène dans un module photovoltaïque et procédé de fabrication d'un tel module |
ITMI20111987A1 (it) | 2011-11-03 | 2013-05-04 | Getters Spa | Getters compositi perfezionati |
KR101758197B1 (ko) | 2012-02-27 | 2017-07-14 | 주성엔지니어링(주) | 태양전지 및 그 제조방법 |
DE202012100789U1 (de) | 2012-03-06 | 2013-03-08 | Sitec Solar Gmbh | Photovoltaisches Modul |
EP2831924A1 (fr) * | 2012-03-30 | 2015-02-04 | Saint-Gobain Glass France | Module photovoltaïque doté d'un dispositif refroidisseur |
FR2998668B1 (fr) * | 2012-11-23 | 2015-04-10 | Apollon Solar | Methode et installation de controle de la pression interne d'un module photovoltaique |
CN103383972A (zh) * | 2013-07-17 | 2013-11-06 | 上海太阳能科技有限公司 | 一种能够快速装卸的模块化轻质化光伏组件 |
CN104600158B (zh) * | 2015-01-13 | 2017-08-15 | 福建铂阳精工设备有限公司 | 一种晶硅电池组件的互联方法 |
FR3109019A1 (fr) | 2020-04-06 | 2021-10-08 | Elixens | Module photovoltaïque et procede de fabrication d’un tel module |
US20240162848A1 (en) * | 2022-11-16 | 2024-05-16 | LightCell Inc. | Apparatus and methods for efficient conversion of heat to electricity via emission of characteristic radiation |
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2004
- 2004-04-14 EP EP04742507A patent/EP1614165A2/fr not_active Withdrawn
- 2004-04-14 CA CA002522405A patent/CA2522405A1/fr not_active Abandoned
- 2004-04-14 US US10/551,554 patent/US20060272699A1/en not_active Abandoned
- 2004-04-14 AU AU2004231893A patent/AU2004231893A1/en not_active Abandoned
- 2004-04-14 WO PCT/FR2004/000925 patent/WO2004095586A2/fr active Application Filing
- 2004-04-14 JP JP2006505797A patent/JP2006523946A/ja active Pending
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2008
- 2008-01-29 US US12/010,719 patent/US20080257401A1/en not_active Abandoned
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
US20080257401A1 (en) | 2008-10-23 |
JP2006523946A (ja) | 2006-10-19 |
AU2004231893A1 (en) | 2004-11-04 |
CA2522405A1 (fr) | 2004-11-04 |
US20060272699A1 (en) | 2006-12-07 |
WO2004095586A3 (fr) | 2005-10-06 |
WO2004095586A2 (fr) | 2004-11-04 |
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