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WO2014050069A1 - Procédé pour fabriquer un module de cellules solaires et système pour fabriquer un module de cellules solaires - Google Patents

Procédé pour fabriquer un module de cellules solaires et système pour fabriquer un module de cellules solaires Download PDF

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Publication number
WO2014050069A1
WO2014050069A1 PCT/JP2013/005613 JP2013005613W WO2014050069A1 WO 2014050069 A1 WO2014050069 A1 WO 2014050069A1 JP 2013005613 W JP2013005613 W JP 2013005613W WO 2014050069 A1 WO2014050069 A1 WO 2014050069A1
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WO
WIPO (PCT)
Prior art keywords
module
solar cell
manufacturing
target
solar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2013/005613
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English (en)
Japanese (ja)
Inventor
志穂美 中谷
裕幸 神納
山田　裕之
真吾 岡本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2014538169A priority Critical patent/JP6233602B2/ja
Publication of WO2014050069A1 publication Critical patent/WO2014050069A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/90—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers
    • H10F19/902—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F71/00—Manufacture or treatment of devices covered by this subclass
    • H10F71/137—Batch treatment of the devices
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a solar cell module manufacturing method and a solar cell module manufacturing system.
  • the solar cell module includes a plurality of solar cells connected by a wiring material, and a protective member such as a glass substrate that protects the solar cells (for example, see Patent Document 1).
  • the solar cells are ranked according to the output in the manufacturing process, and the plurality of solar cells constituting the module are selected from each rank according to the target output of the module. This selection is performed using the center value of the output width of each rank. That is, a plurality of solar cells are selected so that the module output calculated using the center value of each rank satisfies the target output.
  • the manufacturing conditions are adjusted to obtain the target cell output, but the cell output varies due to differences in raw materials and fluctuations in conditions.
  • the cell output varies. For example, as shown in the output distribution illustrated in FIG. 8, the peak top of the output distribution exists in the range of rank C in the production lot a, but the peak top of the output distribution in the range of rank D in the production lot b. Exists.
  • the module output may vary and may not satisfy the target output. Therefore, in order to suppress the generation of solar battery modules that do not satisfy the target output, it is necessary to select solar cells so that the output is slightly higher than the target output. For this reason, the usage amount of the solar cells located on the high output side in the output distribution increases, the inventory of the solar cells located on the high output side in the output distribution decreases, and the low output in the output distribution. The problem that the inventory of the photovoltaic cell located in the side increases occurs. When the inventory of solar cells of a specific rank increases, the solar cells of that rank must be disposed of.
  • the method for manufacturing a solar cell module prepares a plurality of solar cells, measures the characteristic values of the solar cells, and puts the solar cells in a plurality of holders based on the measured characteristic values and target module characteristic values
  • a module unit which is a bundle of a plurality of solar cells that satisfy the target module characteristic value when electrically connected by distribution and wiring material, is produced for each holder, and the plurality of solar cells constituting the module unit are electrically connected by wiring material. Connect.
  • the solar cell module manufacturing system measures the characteristic value of the solar cell, distributes the solar cell to a plurality of holders based on the measured characteristic value and the target module characteristic value, and electrically uses the wiring material.
  • a means for producing a module unit which is a bundle of a plurality of solar cells satisfying a target module characteristic value when connected, for each holder, and a plurality of solar cells constituting the module unit are electrically connected by a wiring material.
  • Means for producing a string is a bundle of a plurality of solar cells satisfying a target module characteristic value when connected, for each holder, and a plurality of solar cells constituting the module unit.
  • a solar cell module that satisfies the target output can be efficiently manufactured.
  • FIG. 1 is a plan view of the solar cell module 10 as seen from the light receiving surface side.
  • FIG. 2 is a cross-sectional view of the solar cell module 10 cut in the thickness direction along line XX in FIG.
  • the solar cell module 10 includes a plurality of solar cells 11, a first protective member 12 disposed on the light receiving surface side of the solar cell 11, and a second protective member 13 disposed on the back surface side of the solar cell 11. Is provided.
  • the plurality of solar cells 11 are sandwiched between the first protective member 12 and the second protective member 13 and are sealed with a filler 14.
  • a translucent member such as a glass substrate, a resin substrate, or a resin film can be used.
  • the second protective member 13 for example, a white member that does not have translucency may be used.
  • a resin such as ethylene vinyl acetate copolymer (EVA) can be used.
  • the solar cell module 10 includes a wiring member 15 that connects a plurality of solar cells 11.
  • the wiring member 15 bends in the thickness direction of the solar cell module 10 between the adjacent solar cells 11 and connects the solar cells 11 in series.
  • the solar cell module 10 includes a transition wiring member 16 that connects the wiring members 15, a frame 17 that is attached to the periphery of the first protective member 12 and the second protective member 13, a terminal box (not shown), and the like.
  • a string 18 in which a plurality of solar cells 11 are connected in series is formed by the wiring member 15 and the transition wiring member 16.
  • the solar cell 11 includes a photoelectric conversion unit 20 that generates carriers by receiving sunlight, a first electrode 30 that is a light receiving surface electrode formed on the light receiving surface, and a back surface formed on the back surface. And a second electrode 40 that is an electrode.
  • the carriers generated by the photoelectric conversion unit 20 are collected by the first electrode 30 and the second electrode 40, respectively.
  • the “light receiving surface” means a surface on which sunlight mainly enters from the outside of the solar battery cell 11
  • the “back surface” means a surface opposite to the light receiving surface. For example, more than 50% to 100% of the sunlight incident on the solar battery cell 11 is incident from the light receiving surface side.
  • the photoelectric conversion unit 20 includes a substrate 21 made of a semiconductor material such as crystalline silicon (c-Si), gallium arsenide (GaAs), indium phosphide (InP), and an amorphous semiconductor formed on the light receiving surface of the substrate 21.
  • a layer 22 and an amorphous semiconductor layer 23 formed on the back surface of the substrate 21 are included.
  • As the substrate 21, an n-type single crystal silicon substrate is particularly suitable.
  • the amorphous semiconductor layer 22 has a layer structure in which, for example, an i-type amorphous silicon layer and a p-type amorphous silicon layer are sequentially formed.
  • the amorphous semiconductor layer 23 has a layer structure in which, for example, an i-type amorphous silicon layer and an n-type amorphous silicon layer are sequentially formed.
  • the first electrode 30 has a transparent conductive layer 31 formed on the amorphous semiconductor layer 22 and a collector electrode 32 formed on the transparent conductive layer 31.
  • the second electrode 40 includes a transparent conductive layer 41 and a collecting electrode 42.
  • the collector electrode 42 be larger than the collector electrode 32 in the area of the collector electrode.
  • the transparent conductive layers 31 and 41 are made of, for example, a transparent conductive oxide obtained by doping metal oxide such as indium oxide (In 2 O 3 ) or zinc oxide (ZnO) with tin (Sn), antimony (Sb), or the like. Composed.
  • the collector electrodes 32 and 42 have a structure in which conductive fillers are dispersed in a binder resin such as an epoxy resin, for example.
  • a binder resin such as an epoxy resin, for example.
  • the conductive filler metal particles such as silver (Ag), copper (Cu), nickel (Ni), carbon, or a mixture thereof can be used. Of these, Ag particles are preferred.
  • the collector electrodes 32 and 42 may be metal plating electrodes formed by Ag or Cu plating.
  • the collecting electrodes 32 and 42 are preferably composed of a plurality of finger portions and a plurality of (for example, two or three) bus bar portions.
  • the finger part is a thin line-like electrode formed over a wide range on the transparent conductive layers 31 and 41, and the bus bar part is an electrode that collects carriers from the finger electrode.
  • the collector electrode 42 may be comprised from metal layers, such as Ag, instead of a finger part.
  • a structure other than the above can be applied to the photoelectric conversion unit.
  • an i-type amorphous silicon layer and an n-type amorphous silicon layer are sequentially formed on the light-receiving surface side of a substrate made of n-type single crystal silicon or the like, and an i-type amorphous silicon layer is formed on the back surface side of the substrate.
  • a photoelectric conversion part in which a p-type region composed of a p-type amorphous silicon layer and an n-type region composed of an i-type amorphous silicon layer and an n-type amorphous silicon layer are formed.
  • electrodes p-side electrode and n-side electrode
  • a photoelectric conversion unit including a substrate made of p-type polycrystalline silicon, an n-type diffusion layer formed on the light-receiving surface of the substrate, and an aluminum metal layer formed on the back surface of the substrate; Also good.
  • FIGS. 3 to 5 are diagrams showing manufacturing processes of the solar cell module manufacturing system 50, 50x, 50y and the solar cell module 10.
  • FIG. 6 is a flowchart showing the manufacturing procedure of the solar cell module 10.
  • FIG. 7 is a diagram showing the output distribution of the solar cell module 10.
  • the solar cell module 10 can be manufactured using the manufacturing system 50.
  • the characteristic value of the solar battery cell 11 is measured, and the solar battery cell 11 is distributed to a plurality of holders based on the measured characteristic value to produce a module unit.
  • the module unit means a bundle of a plurality of solar cells 11 that satisfy a target module characteristic value when connected in series with the wiring member 15 and the transition wiring member 16.
  • the maximum output Pmax (Maximum Power) is used as the characteristic value.
  • module Pmax in order to distinguish Pmax of the photovoltaic cell 11 and Pmax of the solar cell module 10.
  • the solar battery cell 11 manufactured by a manufacturing facility is transferred to the selector device 51, and the characteristic value of the solar battery cell 11 is measured by the selector device 51. Then, the module unit G is produced based on the measured Pmax and the target module Pmax (target module Pmax).
  • the manufacturing system 50 includes the selector device 51, a string production device 52 that produces the string 18 using the module unit G, and a plurality of cassettes 53 as the holder for producing the module unit G.
  • the cassette 53 is a holder that can accommodate and carry a predetermined number of solar cells 11 constituting the module unit G, for example.
  • the module unit G is manufactured by automatically assigning a plurality of solar cells 11 to each cassette 53 by the selector device 51.
  • the module unit G is transported to the string production device 52 in a state of being accommodated in each cassette 53, and the wiring material 15 or the like is attached to the string production device 52 to form the string 18.
  • the manufacturing system 50 includes a control device 60 that integrally controls the operation of the system.
  • the control device 60 includes a selector control unit 61 that controls the selector device 51, a string production control unit 62 that controls the string production device 52, and a storage unit 63 that stores information for producing the module unit G and the like.
  • Examples of the information for producing the module unit G include a measured value of Pmax, a target module Pmax, a total of measured values of Pmax for each cassette 53, and the like. It is preferable that the measured value of Pmax and other characteristic values for each cassette 53 and the identification information given to the cassette 53 are stored in the storage unit 63 as a set.
  • the storage unit 63 can store various arithmetic expressions, control programs, and the like.
  • the selector control unit 61 has a function of controlling the selector device 51 and measuring Pmax of the solar battery cell 11.
  • the selector control unit 61 has a function of distributing the solar cells 11 to the plurality of cassettes 53 based on the measured Pmax and the target module Pmax. More specifically, the measured value of Pmax of the solar cells 11 to be distributed (hereinafter sometimes referred to as “distribution target”), the target module Pmax read from the storage unit 63, and further the distribution target are to be allocated.
  • the solar cells 11 are distributed by comparing with the total of the measured values of Pmax for each cassette 53 at the time (hereinafter sometimes referred to as “current time”). Such distribution is performed so that a module unit G is produced for each cassette 53, as will be described in detail later.
  • the string production control unit 62 has a function of controlling the string production device 52 to connect a plurality of solar cells 11 constituting the module unit G in series with the wiring material 15 or the like. That is, the string production control unit 62 may use the module unit G stored in the cassette 53 as it is, and does not need to select the solar battery cell 11 while predicting the module Pmax.
  • FIG. 3 shows one control device 60 that controls the entire manufacturing system 50 in an integrated manner, but the functions of the control device 60 may be distributed among a plurality of hardware. Moreover, all the processes may be automatically performed by the function of the control device 60, or a part of this process may be manually performed.
  • the manufacturing system 50x illustrated in FIG. 4 module units of a plurality of grades are produced.
  • the manufacturing system 50x includes cassettes 53 G1 , 53 G2 , and 53 G3 corresponding to the module units G1, G2, and G3.
  • a plurality of cassettes 53 G1 , 53 G2 , 53 G3 are preferably provided, and corresponding module units are produced in each of the various cassettes.
  • the strings 18 G1 , 18 G2 , and 18 G3 constituting the solar cell module 10 are formed using module units G 1, G 2, and G 3 including a plurality of solar cells 11 accommodated in one cassette 53. Produced.
  • a plurality of strings 18 G1 are electrically connected using a manufacturing apparatus (not shown).
  • the selector control unit 61 reads the three target modules Pmax from the storage unit 63, and distributes the solar cells 11 to the respective cassettes in the same manner as in the manufacturing system 50.
  • the manufacturing system 50y illustrated in FIG. 5 is different from the manufacturing system 50x in that a transport line 54 capable of continuously transporting the solar cells 11 from the selector device 51 to the string production device 52 is provided instead of the cassette. Then, racks 55 G1 , 55 G2 , 55 G3 incorporated in the string production device 52 are provided as holders for producing module units. A plurality of racks 55 G1 , 55 G2 , and 55 G3 are preferably provided, and a module unit is produced for each rack.
  • the manufacturing system 50y is particularly useful when the selector device 51 and the string manufacturing device 52 are arranged close to each other. By adopting a system in which the rack is automatically transported from the selector device 51 toward the string production device 52, damage to the solar cells 11 in the transport process can be reduced.
  • the solar cells 11 constituting each module unit G1, G2, G3 are transported to the string production device 52 with identification information for specifying a rack to be accommodated in the selector device 51, for example. Also good.
  • the solar cells 11 may be transported by providing a plurality of transport lines 54 respectively connected to the racks 55 G1 , 55 G2 , 55 G3 .
  • the selector production device 51 attaches information on the measured value of Pmax to each solar cell 11 and transports the solar cell 11 to the string production device 52.
  • the string production device 52 uses the measurement value and the target module Pmax. You may distribute the photovoltaic cell 11 to each rack.
  • the solar cells 11 may be transferred from the selector device 51 to the string production device 52 using equipment such as a robot arm.
  • the photoelectric conversion unit 20 is manufactured (S10). Specifically, an amorphous semiconductor layer 22 including an i-type amorphous silicon layer and a p-type amorphous silicon layer is formed on the light-receiving surface of the substrate 21, and an i-type amorphous film is formed on the back surface of the substrate 21.
  • the photoelectric conversion part 20 is manufactured by forming the amorphous semiconductor layer 23 including the silicon layer and the n-type amorphous silicon layer.
  • the amorphous semiconductor layers 22 and 23 are formed by, for example, CVD or sputtering by placing the cleaned substrate 21 in a vacuum chamber.
  • a source gas obtained by diluting silane (SiH 4 ) with hydrogen (H 2 ) is used for forming the i-type amorphous silicon layer by CVD.
  • a source gas diluted with hydrogen (H 2 ) by adding diborane (B 2 H 6 ) to silane can be used.
  • a source gas diluted with hydrogen (H 2 ) by adding phosphine (PH 3 ) to silane can be used.
  • the first electrode 30 and the second electrode 40 are formed on the photoelectric conversion unit 20 manufactured in S10 (S11).
  • Transparent conductive layers 31 and 41 are first formed on the amorphous semiconductor layers 22 and 23 of the photoelectric conversion unit 20 by CVD or the like, respectively.
  • collector electrodes 32 and 42 are formed on the transparent conductive layers 31 and 41 by screen printing or electrolytic plating, respectively.
  • the solar battery cell 11 is manufactured by this process.
  • the plurality of solar cells 11 manufactured in S11 are transported to the selector device 51, Pmax is measured, and distributed to the plurality of cassettes 53 based on the measured Pmax and the target module Pmax (S12, S13). Steps S12 and S13 are automatically executed by the function of the selector control unit 61.
  • Pmax is measured as a characteristic value of the plurality of solar battery cells 11.
  • the open circuit voltage Voc, the short circuit current Isc, the fill factor FF, and the like may be included as the measured characteristic values.
  • This process is automatically executed by the function of the selector control unit 61.
  • Pmax is measured for all the solar cells 11. Pmax can be measured, for example, according to JIS C 8913.
  • the solar cells 11 are distributed to a plurality of cassettes 53 based on the Pmax measured in S12 and the target module Pmax, and a module unit G is produced for each cassette 53 (S13).
  • the module Pmax is preferably at least equal to or greater than the target module Pmax and approximate to the target module Pmax.
  • S ⁇ b> 13 when the solar cells 11 are sorted, the measured value of Pmax is counted for each cassette 53, and the total value is stored in the storage unit 63 as needed.
  • the target module Pmax stored in advance in the storage unit 63 and the total value of Pmax of the solar cells 11 accommodated in each cassette 53 are compared with the Pmax of the solar cells 11 measured at the present time.
  • the solar battery cells 11 are distributed to any one of the cassettes 53.
  • the average value and standard deviation of Pmax of each solar battery cell 11 may be calculated as needed, and the module unit G may be produced using the average value and standard deviation.
  • a predetermined number of solar cells 11 smaller than the number constituting the module unit G are allocated to each cassette 53, and then added to each cassette 53 based on the total value of Pmax in each cassette 53. 11 can be determined. Specifically, a value obtained by subtracting the above total value from the target module Pmax, that is, a necessary remaining Pmax and a Pmax to be distributed are compared to determine a solar cell 11 to be added to each cassette 53, and a module unit The number of solar cells constituting G is selected.
  • the target module Pmax may be set in consideration of a correlation coefficient described later.
  • the predetermined number is 65, and the remaining 5 can adjust the module Pmax. Further, if the Pmax output distribution of the solar battery cell 11 is sharp, the predetermined number may be 69 (that is, the required number ⁇ 1).
  • the predetermined number may be 69 (that is, the required number ⁇ 1).
  • the plurality of cassettes 53 for those in which the total value of the predetermined number of Pmax is lower than the other cassettes 53, it is preferable to preferentially distribute the solar cells 11 whose Pmax is higher than the average value as an additional part. . On the other hand, it is preferable to preferentially distribute the solar cells 11 whose Pmax is lower than the average value as an additional portion for the total value of the predetermined number Pmax higher than the other cassettes 53.
  • a plurality of types of module units can be manufactured in order to manufacture a plurality of grades of solar cell modules 10 with greatly different modules Pmax.
  • a distribution threshold value for the measured value of Pmax.
  • three types of module units are manufactured by the manufacturing system 50x.
  • two threshold values are set such that the first threshold value ⁇ the second threshold value. For example, if Pmax to be distributed is less than the first threshold value, the distribution is preferentially distributed to the cassette 53 G1 . If Pmax sorting target is less than the first threshold value or more second threshold distribution in the cassette 53 G2 preferentially, Pmax sorting object dispatches preferentially to the cassette 53 G3 If the second threshold value or more.
  • FIG. 7 is a diagram showing an output distribution of the module Pmax.
  • the solar battery modules manufactured from the module units G1, G2, and G3 are shown by solid lines and using the center values of ranks A to G in FIG.
  • Solar cell modules g1 and g2 (comparative examples) manufactured by selecting 11 are indicated by two-dot chain lines.
  • G1, g1 is the target module Pmax and Pz 1
  • G2, g2 is the target module Pmax and Pz 2
  • G3 is to the target module Pmax and Pz 3.
  • the plurality of solar cells constituting the solar cell modules g1 and g2 are selected from the ranks shown in FIG. 8 according to the target output of the module.
  • Pz 1 and Pz 3 may be the total Pmax of the selected plurality of solar cells 11, or the solar cell module 10 after the laminating process described later for the selected plurality of solar cells 11.
  • Pz 1 and Pz 3 may be obtained using the correlation coefficient.
  • the output value is smaller than Pmax in the state of the solar cell module 10 in consideration of the correlation coefficient.
  • a plurality of solar cells 11 are selected.
  • Pmax in the state of the solar cell module 10 is smaller than the total Pmax of the selected plurality of solar cells 11
  • the output value is larger than Pmax in the state of the solar cell module 10 in consideration of the correlation coefficient.
  • a plurality of solar cells 11 are selected as described above.
  • the module Pmax can be accurately adjusted to the target value because it is manufactured using the actual measurement value of Pmax. For this reason, the standard deviation of the output distribution is small compared to the cases of g1 and g2, and the variation in output among the modules is small.
  • the peaks of G1 and G2 are greatly shifted to the Pz 1 and Pz 2 sides than the peaks of g1 and g2.
  • the module output can be accurately adjusted to the target value compared to the comparative example, so that a solar cell module that satisfies the target output can be obtained without giving a large margin to the module output.
  • the generation of solar cell modules that do not satisfy the target output can be sufficiently prevented.
  • the usage amount of the photovoltaic cell located on the high output side in the output distribution in G1 and G2 can be suppressed, and the photovoltaic cell located on the high output side in the output distribution can be of higher output grade. It becomes possible to use for manufacture of G3.
  • the wiring member 15 and the like are connected to the plurality of solar cells 11 constituting the module unit G, and the string 18 in which each solar cell 11 is electrically connected is manufactured. (S14).
  • This process is automatically executed by the function of the string production control unit 62.
  • the wiring member 15 is attached to the collector electrodes 31 and 42 using, for example, an adhesive made of a film-like or paste-like thermosetting resin.
  • the constituent members of the solar cell module 10 including the string 18 produced in S14 are stacked and thermocompression bonded (S15).
  • This process is called a laminating process and is performed using a laminator (not shown).
  • the laminating step the first resin constituting the filler 14 is laminated on the first protective member 12, and the string 18 is laminated on the first resin.
  • the second resin constituting the filler 14 is laminated on the string 18 and the second protective member 13 is laminated thereon. And it laminates by applying a pressure from the 2nd protection member 13 side, heating at the temperature which each resin melts.
  • the frame 17 and the terminal box are attached, and the solar cell module 10 is manufactured.
  • Pmax is used as the characteristic value, but the module unit G may be manufactured using a characteristic value other than Pmax.
  • characteristic values other than Pmax include the fill factor FF, sheet resistance R, short circuit current Isc, open circuit voltage Voc, and the like of the solar cell 11.
  • the target solar cell module 10 can be manufactured efficiently.
  • the solar cell module 10 is manufactured using an actual measurement value such as Pmax, so that the use efficiency of the solar cells is high and it is easy to realize a production plan. It is also possible to manufacture a high-power grade solar cell module 10 using solar cells in which Pmax and the like are at the same level as before.

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PCT/JP2013/005613 2012-09-28 2013-09-24 Procédé pour fabriquer un module de cellules solaires et système pour fabriquer un module de cellules solaires Ceased WO2014050069A1 (fr)

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JP2014538169A JP6233602B2 (ja) 2012-09-28 2013-09-24 太陽電池モジュールの製造方法、及び太陽電池モジュールの製造システム

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JP2012-216995 2012-09-28
JP2012216995 2012-09-28

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