WO2006022209A1 - 太陽電池素子の接続方法 - Google Patents
太陽電池素子の接続方法 Download PDFInfo
- Publication number
- WO2006022209A1 WO2006022209A1 PCT/JP2005/015179 JP2005015179W WO2006022209A1 WO 2006022209 A1 WO2006022209 A1 WO 2006022209A1 JP 2005015179 W JP2005015179 W JP 2005015179W WO 2006022209 A1 WO2006022209 A1 WO 2006022209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solar cell
- lead wire
- tab lead
- heating
- cooling
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 53
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000010438 heat treatment Methods 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 229910000679 solder Inorganic materials 0.000 claims abstract description 37
- 238000005476 soldering Methods 0.000 claims abstract description 16
- 238000010977 unit operation Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 239000000112 cooling gas Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000008642 heat stress Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 11
- 230000008646 thermal stress Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
-
- 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
-
- 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
- the present invention relates to a method for connecting solar cell elements to form a solar cell module by connecting a plurality of solar cell elements in series and in parallel, and more specifically, using an ultrathin solar cell element.
- the present invention also relates to a connection method capable of reducing the damage and warpage of the element and improving the yield and providing an inexpensive solar cell panel.
- Solar cells are power generation systems that directly convert sunlight, which is inexhaustible and free from environmental pollution, into electrical energy. From solar power generation to applications such as calculators, watches, and toys, The range of use is rapidly expanding.
- Such a solar cell includes a step of forming a module by electrically connecting a plurality of solar cell elements by tab lead wires after passing through the manufacturing process of the solar cell element, and protecting the module with a transparent cover material. It is manufactured through a process of laminating between materials.
- various types of solar cells especially amorphous silicon solar cells and polycrystalline silicon solar cells can be manufactured in a large area and are inexpensive to manufacture.
- the development of production technology for modular and systematization has been further promoted, and several hundred KW large power generators, such as 3KW small household power generators, will be put into practical use. It comes.
- the thickness of the element substrate that constitutes the solar cell is about 200 microns, which is thinner than 300 to 500 microns, and in the near future, there is a possibility of targeting about 150 microns, which is thinner than this.
- a solar cell module forming a powerful power generation device is formed by connecting a plurality of solar cell elements in series and in parallel, and as a general connection method by soldering for connecting the elements. Is a pre-soldered surface side collector electrode of one of the adjacent elements The soldered tab lead wire is brought into close contact with the other back soldered electrode on the other side, and the tab lead wire is connected through heating (welding) and cooling processes. Since the welded portion is performed all over the entire length of the tab lead wire, thermal stress (stress) is applied to the substrate side mainly due to the difference in thermal expansion coefficient between the element substrate and the tab lead wire, and in some cases, the element substrate is cracked. In some cases, the yield may decrease due to the occurrence of warpage. In addition, this tendency is required to solve these problems that are more likely to appear as the substrate thickness is thinner.
- connection tab In an attempt to meet the above requirements, for example, a plurality of solar cells disposed between a front surface member having a permeability and a back surface member and electrically connected to each other by a connection tab (tab lead wire).
- the connection tab forms a connection surface with the solar cell element and is separated from each other, and the plurality of connection portions separated from the connection surface with the solar cell element.
- a module of a solar cell including a connecting portion that connects connecting portions to each other (see, for example, Patent Document 1).
- a plurality of solar cell elements having a back electrode on the back surface and a surface electrode and a collecting electrode on the front surface are arranged in parallel, and one solar cell element and another adjacent solar cell element are connected in series.
- soldering is applied to the connection tab.
- a solar cell module has been proposed in which a plurality of possible solderable areas and non-solderable areas where soldering is impossible are alternately provided in the longitudinal direction (see, for example, Patent Document 2).
- Patent Document 1 JP-A-11 312820
- Patent Document 2 Japanese Patent Laid-Open No. 2002-280591
- connection tabs in the technique described in Patent Document 1 are separated from each other and have a plurality of connection portions having flat surfaces for forming connection surfaces with solar cell elements, and these The connection portion is connected to the solar cell element at a distance from each other and connected to the solar cell element to reduce the area of the connection surface.
- heating and cooling of the connection tab are simultaneously performed over the entire length of the connection tab, and simultaneously over the entire length of the connection tab. Due to the cooling, damage to the element and warpage due to thermal stress are inevitable, and there is a problem that the yield is lowered due to damage caused by handling and pressurization in each process of the module.
- connection tab is not a mere flat tabbed wire covered with solder as is commercially available, but a plurality of connecting portions sandwiched between the connecting portions are bent. Since the special structural force is also applied, it is necessary to form it with high precision so as not to break from the part of this bending force, or to maintain the strength of this part. I cannot help it.
- Patent Document 2 is an improvement of the technique described in Patent Document 1, and can be soldered in place of the connection tab having a connection portion and a connection portion in Patent Document 1. Applying connection tabs with multiple solderable areas and non-solderable areas where soldering is impossible in the longitudinal direction, which prevents the generation of thermal stress on the board, It is intended to prevent damage.
- connection tab of the invention described in Patent Document 2 masks the locations where the solder adheres to the thin copper foil serving as a base at a plurality of locations, and then attaches the solder.
- masking was removed and spare solder was applied, so that the connection surface was preliminarily soldered.
- the connection area can be easily reduced, and since there is no mechanical processing, there are no places where the mechanical strength decreases, and the connection tab is intermittently connected to the solar cell element. As a result, it is possible to reduce the thermal stress of the substrate that occurs during soldering and to prevent the substrate from being damaged.
- connection tabs are performed simultaneously over the entire length of the connection tabs, so that damage and warpage are inevitable.
- a special connection tab that requires a lot of man-hours, such as masking or surface treatment, is used, so it is inevitable that costs will increase
- the present invention solves the above-mentioned problems of the prior art in view of the strong situation, and is a flat standard that is a commercially available inexpensive standard product that does not use an expensive and special connection tab.
- An object is to provide a connection method.
- claim 1 of the present invention is directed to electrically connecting a solar cell element having a surface electrode and a collecting electrode on the front surface and a back electrode on the back surface by soldering a tab lead wire.
- the unit When connecting to the tab lead wire, the unit is continuously or intermittently connected by repeatedly moving a unit operation consisting of heating for melting the solder and cooling for solidifying the molten solder.
- the connection method of the solar cell element characterized by this is included.
- Claim 2 of the present invention includes the method for connecting solar cell elements according to claim 1, wherein the heating means is an infrared lamp, heated gas, or heated iron.
- Claim 3 of the present invention includes the method for connecting solar cell elements according to claim 1 or 2, wherein the cooling means is gas, liquid, or solid.
- Claim 4 of the present invention includes the method for connecting solar cell elements according to claim 3, wherein the gas is air.
- Claim 5 of the present invention includes the method for connecting solar cell elements according to claim 3, wherein the liquid is ethanol.
- Claim 6 of the present invention is a claim in which nozzles are arranged on the tab lead wires at appropriate intervals, and a heating gas is sequentially supplied to the nozzle, and then a cooling gas is supplied or allowed to cool.
- Item 1 is a method for connecting solar cell elements.
- a pair of heating nozzles and cooling nozzles are arranged on the tab lead wire, heating gas is supplied to the heating nozzles, and cooling gas is not supplied to the cooling nozzles.
- a heating iron and a cooling nozzle are disposed on a tab lead wire, and the heating is performed.
- Claim 9 of the present invention is the method for connecting solar cell elements according to claim 1, wherein a heating nozzle is provided on the tab lead wire, and the heating nozzle is moved on the tab lead wire while supplying caloric hot gas. Is the content.
- Claim 10 of the present invention includes the method for connecting solar cell elements according to claim 1, wherein a heating iron is provided on the tab lead wire, and the tab lead wire is moved while being heated by the heating iron. .
- connection method of a solar cell element having a surface electrode and a current collecting electrode on the front surface and a back electrode on the back surface is electrically connected by soldering a tab lead wire
- the solar cell element is connected continuously or intermittently by moving on the tab lead wire while repeating a cooling operation for solidifying the melted solder
- the current collecting electrode on the surface of one solar cell element and the back electrode of the other element adjacent thereto are heated by soldering a tab lead wire.
- welding and connection are performed to prevent generation of unnecessary thermal stress on the element and to prevent the element from cracking and warping, thereby greatly improving the yield. be able to.
- the reason why the present invention exerts a strong effect is that the solder is not heated and cooled simultaneously over the entire length of the lead wire as in the prior art, but after the solder is heated and melted, it is quickly cooled and welded.
- the lead wire portion that has once expanded due to heating is immediately cooled, so that it contracts and maintains the expansion / contraction force balance locally, which is formed continuously or intermittently over the entire length of the lead wire. Therefore, even if the lead wire is cooled to room temperature, It is considered that the loess is suppressed or alleviated and cracks and warpage are reduced.
- the tab lead wire used in the present invention can be a flat standard soldered tab lead wire, which is an inexpensive standard product that is commercially available, so that it is possible to achieve a significant cost reduction. .
- FIG. 1 (a) is a plan view of a solar cell element. (B) It is a side view of the element.
- FIG. 2 is a side view showing a state in which a plurality of solar cell elements are connected to form a solar cell module.
- FIG. 3 is a perspective view for explaining an embodiment of the present invention.
- FIG. 4 is a perspective view for explaining another embodiment of the present invention.
- FIG. 5 is a perspective view for explaining another embodiment of the present invention.
- FIG. 6 is a perspective view for explaining still another embodiment of the present invention.
- the present invention is provided on the surface of an element substrate in order to collect current by being orthogonal to the surface electrode and the surface electrode.
- the collected current collecting electrode and the back surface electrode are provided on the back surface to form one solar cell element, and one current collecting electrode of the adjacent element is electrically connected to the other back surface electrode by soldering the tab lead wire.
- soldering the tab lead wire When forming a module for a solar cell, it consists of heating to melt the solder and cooling to solidify the molten solder on the tab lead wire that is not heated and cooled simultaneously over the entire length of the tab lead wire. It is characterized by being connected continuously or intermittently by moving while repeating the unit operation.
- the present invention provides a method for electrically connecting a solar cell element having a surface electrode and a collecting electrode on the front surface and a back electrode on the back surface by soldering a tab lead wire. After the solder is melted by heating, it is connected continuously or intermittently by moving on the tab lead wire while repeating the cooling operation in order to solidify the melted solder.
- the tab lead wire used in the present invention is a normal one.
- it is a flat standard, a solder is coated on both sides of electric copper having a width of 1.5 mm and a thickness of 0.16 mm. Product can be used.
- the heating means in the present invention any of an infrared lamp, a heated gas, a heated iron, etc. may be used.
- a gas such as air, a liquid such as water and ethanol, a copper rod having a good thermal conductivity, etc. Any of solid etc. may be sufficient.
- the tab lead wire may be welded continuously or intermittently (spot-like). In the case of intermittent welding, when the length of the tab lead wire is, for example, about 125 to 155 mm, it is usually welded at about 3 to 16 locations.
- connection method of the present invention is preferably performed by an automatic device
- the tab lead wires are connected to each solar cell element by a semi-automatic device, and these elements are connected to each other (usually 8 (About 12 sheets) can also be performed manually.
- the tab lead wire when the tab lead wire is heated to melt the solder and then moved on the tab lead wire while repeating the cooling operation for solidifying the melted solder, the entire length of the tab lead wire is reached. Therefore (in the case of intermittent connection, the spot to be welded) may be heated at once or sequentially.
- the cooling operation is moved continuously or intermittently on the tab lead wire, and is continuously or intermittently welded.
- the starting point is usually the one on the tab lead wire that is moved while repeatedly moving to the other end in terms of workability. However, it is not necessary to limit to this, and an arbitrary position on the tab lead wire may be used as the starting point.
- FIG. 1 a solar cell module formed by connecting a plurality of solar cell elements and this element is shown in FIG. This will be explained based on (a), (b) and FIG.
- Figs. L (a) and (b) as solar cell element 1, surface electrode 3 is provided on the surface of substrate 2 having a dimension of approximately 125 mm square and a thickness of approximately 200 microns, and back electrode 4 is provided on the back surface. At the same time, two to three rows, usually two rows, of current collecting electrodes 5 that are connected to the surface electrode 3 and collect current are formed on the same surface side as the surface electrode 3.
- FIG. 2 shows a state in which two elements are connected, generally about 8 to 12 elements are connected in succession.
- FIG. 3 An embodiment of the present invention will be described with reference to FIG.
- the nozzles of the apparatus described below are also described by showing only one side of the collecting electrodes formed in two rows and omitting the other side. The same applies to the following embodiments.
- a solar cell element 1 provided with the front electrode 3 and the current collecting electrode 5 described in FIG. 1 on the transport belt (not shown) of the apparatus and the back electrode 4 on the back surface.
- the tab lead wire 7 is provided on the upper part of the elongated current collecting electrode 5 formed in two rows. Subsequently, in order to maintain the relative positional relationship between the current collecting electrode 5 and the tab lead wire 7, the finger portion 8A of the lead wire holding mechanism 8 is in a direction perpendicular to the tab lead wire 7 (current collecting electrode 5). Temporarily fix the tab lead wire 7 so that it can be pressed down.
- one end force is applied to the plurality of nozzles 9 of the apparatus arranged on the tab lead wire 7 at an appropriate interval, and heated gas (heated air) is sequentially applied to the tab lead wire 7 toward the other end. And then, the solder is melted by spraying and heating, and then it is switched to the cooling gas (cooling air) sequentially, and the molten solder is solidified and connected continuously or intermittently, or heated until the solder melts on the tab lead wire 7. After the gas (heated air) is jetted and heated, the tab lead wire 7 is sequentially switched from one end to the cooling gas, and the cooling gas (air) from the nozzle 9 is jetted and cooled to the tab lead wire 7 to solidify the solder. The tab lead wire 7 and the current collecting electrode 5 are welded. Subsequently, the finger portion 8A temporarily pressed from above the tab lead wire 7 moves backward, and a series of connection operations is completed.
- a nozzle devised to intensively melt the solder in the lower portion of the tab lead wire 7 whose tip is covered with solder can be used.
- the heated gas instead of supplying the cooling gas, it may be allowed to cool as it is (naturally cooled in contact with the atmosphere).
- the tab lead wires may be heated and cooled by arranging two nozzles side by side and switching the heating nozzle and the cooling nozzle, respectively. In FIG. 3, only the nozzle is shown, and the supply tube and the supply source of the heated gas and the cooling gas connected to the nozzle are omitted.
- the solar cell element 1 is set on the conveyor belt (not shown) of the apparatus, and the tab lead wire 7 is disposed above the current collecting electrode 5.
- the finger portion 8A of the lead wire pressing mechanism portion 8 is extended and temporarily fixed in a state where the upper force of the tab lead wire 7 is pressed is the same as in the first embodiment.
- a set of heating nozzles 10 for supplying heated air and cooling nozzles 11 for supplying cooling air are arranged on the tab lead wire 7. Then, the tab lead wire 7 between the adjacent finger portions 8A is heated from a pair of the heating nozzle 10 and the cooling nozzle 11 disposed on the tab lead wire 7 and connected to the moving unit (not shown) of the apparatus. Air and cooling air are configured to be supplied separately.
- the solder coated on the tab lead wire 7 is melted by the heated air from the heating nozzle 10, and then the melted solder is cooled and solidified by the cooling air from the cooling nozzle 11.
- the set of heating nozzle 10 and cooling nozzle 11 as a unit sequentially welds the tab lead wire 7 and the collector electrode 5 while moving on the tab lead wire 7 in sequence. Te The upper force of the tab lead wire 7
- the finger portion 8A that has been temporarily pressed back moves backward, completing a series of connection operations.
- this embodiment is the same as that of Embodiment 2 except that a heating iron 12 is used instead of the heating nozzle 10 in Embodiment 2 described above.
- a set of heating irons 12 and a cooling nozzle 11 for supplying cooling air are arranged on the tab lead wire 7, and first, the solder covered with the tab lead wire 7 by the heating iron 12 is melted, In this method, the molten solder is cooled by the cooling air from the cooling nozzle 11 and solidified for connection.
- the number of the finger portions 8A of the lead wire pressing mechanism portion 8 in the apparatus is the same as in the first and second embodiments. Although six are provided on one side, as shown in FIG. 5, the number of finger portions 8A may be two on one side so as to hold only two positions at both end positions of element 1. Thus, by reducing the number of finger parts 8A, it is easy to change the soldering pitch, and it is also easy to solder continuously.
- This embodiment is the same as the embodiment 3 except that the cooling nozzle 11 is removed and only the heating iron 12 is provided in the embodiment 3.
- the heating lead 12 is arranged on the tab lead wire 7 and the tab lead wire 7 is sequentially moved and connected.
- the cooling after pressing and soldering with the heating lead 12 is performed by air cooling. It is a form.
- the solar cell element 1 is a single crystal substrate with an outer dimension of 125mm x 125mm and a thickness of 220 microns, and the electrode is pre-soldered, and the tab lead wire is 160 microns thick and a 1.5mm wide lead-free solder plating.
- the product was used.
- the tab lead wire to the element 1 was performed separately by the tandem method. The conditions were that the temperature of the heated air was 510 ° C, and the tab lead wire attachment speed was 3.0 seconds for a 125 mm tab lead wire length.
- the cooling air was 30 ° C at room temperature, and the heating and cooling operation was performed with a pattern of 0.5 second delay that started at the heating start point of the heating nozzle 10. At the heating start point, the nozzle unit started running after preheating for 0.5 seconds.
- the crack of the element was a gap for 96 tab lead wires.
- the warpage of the element averaged 0.6 mm as the maximum measured value near the center, and there was no damage during the processing of the module.
- Tab lead wires were connected in the same manner as in Example 1 except that the entire length of the tab lead wire was heated at the same time and then cooled at the same time over the entire length of the tab lead wire. There were two cracks in the element compared to 96 tab lead wires, and the average warpage of the element was 1.8 mm, and one was damaged during the process of modularization.
- Solar cell elements were connected by the connection method shown in FIG. That is, using the same solar cell element and tab lead wire as in Example 1 described above, tab lead wires were attached separately on the front and back sides by a tandem method.
- the heating iron temperature was 300 ° C
- the tab lead wire attachment speed was 5 seconds.
- the preheating time at the heating start point was 0.5 seconds.
- the cooling conditions were the same as in Example 1.
- SU S304 titanium coating material was used for the surface which contacts the tab lead wire of the front-end
- the crack was zero with respect to the tab lead attachment of 96 elements.
- the warpage of the substrate was 0.5 mm on average at the maximum value near the center, and there was no damage during the nodling in the modularization process.
- connection method of the present invention the damage of the element due to the thermal stress when soldering with the tab lead wire is greatly reduced, and the warp of the element connected with the tab lead wire is reduced.
- the module machining process can be reduced to the extent that damage during the nodling can be avoided, greatly improving the yield.
- a normal tab lead wire that does not require a special tab lead wire can be used, so that an inexpensive solar cell module can be provided in conjunction with the improvement in the yield.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-246310 | 2004-08-26 | ||
JP2004246310A JP3978203B2 (ja) | 2004-08-26 | 2004-08-26 | 太陽電池素子の接続方法 |
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WO2006022209A1 true WO2006022209A1 (ja) | 2006-03-02 |
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PCT/JP2005/015179 WO2006022209A1 (ja) | 2004-08-26 | 2005-08-22 | 太陽電池素子の接続方法 |
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JP (1) | JP3978203B2 (ja) |
TW (1) | TWI419340B (ja) |
WO (1) | WO2006022209A1 (ja) |
Cited By (2)
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WO2010063405A2 (de) | 2008-12-03 | 2010-06-10 | Aci-Ecotec Gmbh & Co. Kg | Aushaertevorrichtung für photovoltaische duennschicht-solarzellen |
CN106571412A (zh) * | 2015-10-12 | 2017-04-19 | Lg电子株式会社 | 用于附接太阳能电池板的互连器的设备和方法 |
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JP2007273830A (ja) * | 2006-03-31 | 2007-10-18 | Sanyo Electric Co Ltd | 太陽電池装置の製造方法 |
JP4903021B2 (ja) * | 2006-08-28 | 2012-03-21 | 株式会社エヌ・ピー・シー | タブリードのはんだ付け装置およびはんだ付け方法 |
WO2008152678A1 (ja) * | 2007-06-13 | 2008-12-18 | Eco. & Engineering Co., Ltd. | 太陽電池素子の接続方法および接続装置 |
JP2009059738A (ja) * | 2007-08-29 | 2009-03-19 | Kyocera Corp | 太陽電池モジュールの製造方法及び製造装置 |
DE102008037403A1 (de) * | 2008-09-30 | 2010-04-01 | Jörg NIEMEIER | Verfahren und Vorrichtung zum Verbinden einer Solarzelle mit einem Zellverbinder |
JP2011088165A (ja) * | 2009-10-20 | 2011-05-06 | Nisshinbo Mechatronics Inc | ハンダ付け装置及びハンダ付け方法 |
JP5459841B2 (ja) * | 2009-12-11 | 2014-04-02 | 日本アビオニクス株式会社 | 太陽電池モジュールの接合方法および接合装置 |
KR101022678B1 (ko) | 2010-05-11 | 2011-03-22 | 주식회사 톱텍 | 리드프레임의 쏠더링장치 |
WO2011151769A2 (en) * | 2010-06-02 | 2011-12-08 | Somont Gmbh | Methods and system for connecting solar cells |
JP2012064748A (ja) * | 2010-09-16 | 2012-03-29 | Nippon Avionics Co Ltd | 太陽電池モジュールの接合方法および接合装置 |
KR101147165B1 (ko) | 2010-10-27 | 2012-05-25 | 주식회사 나래나노텍 | 태양전지의 전극 패턴 형성용 멀티 디스펜싱 노즐, 및 이를 구비한 태양 전지의 전극 패턴 형성 장치 |
JP5541804B2 (ja) * | 2011-01-18 | 2014-07-09 | 日本アビオニクス株式会社 | 太陽電池セルの集電用配線材のハンダ付け方法、ハンダ付け装置およびヒーターツール |
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KR102164037B1 (ko) * | 2014-09-30 | 2020-10-13 | 주식회사 제우스 | 다중 기판 처리 장치 |
KR102164035B1 (ko) * | 2014-09-30 | 2020-10-13 | 주식회사 제우스 | 태빙장치 및 그 제어방법 |
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Also Published As
Publication number | Publication date |
---|---|
TWI419340B (zh) | 2013-12-11 |
TW200618324A (en) | 2006-06-01 |
JP2006066570A (ja) | 2006-03-09 |
JP3978203B2 (ja) | 2007-09-19 |
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