CN106206765A - Solaode chip arrays, solar module and preparation method thereof - Google Patents

Solaode chip arrays, solar module and preparation method thereof Download PDF

Info

Publication number
CN106206765A
CN106206765A CN201510219182.6A CN201510219182A CN106206765A CN 106206765 A CN106206765 A CN 106206765A CN 201510219182 A CN201510219182 A CN 201510219182A CN 106206765 A CN106206765 A CN 106206765A
Authority
CN
China
Prior art keywords
cell piece
tinsel
row
grid line
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.)
Granted
Application number
CN201510219182.6A
Other languages
Chinese (zh)
Other versions
CN106206765B (en
Inventor
赵志强
王立国
田野
康淑萍
姜占锋
何龙
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.)
BYD Co Ltd
Original Assignee
BYD 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 BYD Co Ltd filed Critical BYD Co Ltd
Priority to US14/738,587 priority Critical patent/US10193003B2/en
Priority to US14/738,409 priority patent/US10529868B2/en
Priority to US14/738,322 priority patent/US20160126372A1/en
Priority to US14/738,578 priority patent/US10069019B2/en
Priority to US14/738,516 priority patent/US20160126389A1/en
Priority to US14/738,664 priority patent/US20160126390A1/en
Priority to US14/738,368 priority patent/US20160126388A1/en
Priority to US14/738,637 priority patent/US20160126373A1/en
Priority to US14/738,677 priority patent/US10381493B2/en
Priority to US14/738,244 priority patent/US20160126361A1/en
Priority to US14/738,390 priority patent/US20160126363A1/en
Priority to PCT/CN2015/084094 priority patent/WO2016065946A1/en
Priority to US14/928,863 priority patent/US20160126391A1/en
Publication of CN106206765A publication Critical patent/CN106206765A/en
Publication of CN106206765B publication Critical patent/CN106206765B/en
Application granted granted Critical
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a kind of solaode chip arrays, solar module and preparation method thereof, solaode chip arrays includes that multiple cell piece, multiple cell pieces are arranged into the matrix form of n × m；In same row's cell piece, being connected by a plurality of conductor wire between adjacent cell sheet, at least two conductor wires are formed by reciprocation extension tinsel between the surface of adjacent cell sheet；In adjacent two row's cell pieces, a cell piece in a row and a cell piece in a+1 row are connected by a plurality of conductor wire, article at least two, conductor wire is formed by the tinsel between the reciprocation extension surface of a cell piece in a arranges and the surface of a cell piece in a+1 row, the front of cell piece is provided with secondary grid line and short grid line, secondary grid line includes the middle secondary grid line intersected with conductor wire and the edge pair grid line not intersected with conductor wire, short grid line is connected with edge pair grid line, and short grid line grid line secondary with in the middle of conductor wire or at least one is connected.

Description

Solaode chip arrays, solar module and preparation method thereof
Technical field
The present invention relates to area of solar cell, more particularly to solaode chip arrays, solar module and preparation method thereof.
Background technology
Solar module is one of vitals of device of solar generating.Sunlight enters battery, the main grid in front and secondary grid from cell piece body front can block a part of cell piece body, impinges upon the luminous energy on electrode and cannot be transformed into electric energy, accordingly, it would be desirable to main grid is the thinnest more good with what secondary grid did.But, the effect of main grid and secondary grid is to conduct electric current, and the least from the angle analysis of resistivity, main grid and secondary grid more detailed rules and regulations conduction cross-sectional area, ohmic loss is the biggest.Therefore main grid and secondary grid design are to obtain balance, cost to be considered between shading and conduction.
Existing solaode main grid mostly is three main grid structures, and its main grid is printed on cell piece surface for silver slurry, and then sintering forms.This kind of main grid manufacturing cost is higher, but technique is the most ripe.
In general, the main gate line of solar battery sheet is the most, and secondary grid line is the nearest to the distance of main gate line, and the series resistance of cell piece is the least, and power generation performance is the best.But while main gate line quantity increases, the broadband of main gate line reduces (otherwise can increase shading-area, make total decrease of power generation) the most therewith, and this difficulty allowing for cell piece series welding increases therewith.In industry, multipotency accomplishes the series welding of 5 main gate line cell pieces at present, but 5 main gate line products do not obtain commercial applications, and main cause is the 3 main gate line products that cost performance is less than main flow.
In many main grids (main grid more than 10) solaode, owing to being limited by series welding technology, it is impossible to use the main gate line of silver slurry sintering, tinsel can only be used to make main gate line.
When selecting tinsel material, cost to be considered, electric conductivity and solderability.In common metal, the electrical conductivity of copper is just slightly below silver, and its cost is far below silver, therefore is the preferred material of tinsel.But it is simultaneously bad in the solderability of low temperature between copper main gate line and silver pair grid line, it is impossible to realize the welding (high-temperature soldering may damage cell piece) of temperature less than 200 DEG C.
Further, this tinsel main gate line acts not only as the effect of the main gate line on common batteries sheet, the effect of the welding connected between common batteries sheet to be served as.Therefore this tinsel to cross over 2 adjacent cell pieces, is coupled together at the back side in the front of wherein 1 cell piece with another 1 cell piece, constitutes series circuit.
In general, the solar module of main flow uses 3 main grid solar battery sheets, is attached by busbar between each row's cell piece.This connected mode current path is longer, and resistance is relatively big, and easily produces rosin joint, thus affects the electricity conversion of solar module.
Summary of the invention
The application is to make following facts and the discovery of problem and understanding based on applicant:
In correlation technique, the front of solar battery sheet is usually provided with main gate line and secondary grid line, is used for deriving cell piece by electric current produced by photoelectric effect or Photochemical effects.In order to improve the efficiency of cell piece, current solar breeder commercial city is being devoted to study how to improve the quantity of main gate line.Main grid is successfully brought up to 3 from 2 by prior art, even improves to 5.
But, in prior art, main gate line is to be mainly composed of the slurry of expensive silver by printing to be prepared from, and therefore, its preparation cost is the highest, and the radical increasing silver main gate line necessarily causes the increase of cost.Meanwhile, the width of existing silver main gate line is big (such as, width reaches more than 2mm), and the radical increasing silver main gate line also can increase to shading-area, causes the conversion efficiency of cell piece to reduce.
Therefore, from reducing cost, the angle of minimizing shading-area, the silver-colored main gate line being originally printed on cell piece is replaced with tinsel by correlation technique, such as copper wire, welded with secondary grid line by copper wire, and then copper wire is as main gate line derived current.Owing to not in use by silver main gate line, its cost can be greatly reduced, simultaneously because the diameter of copper wire is less, it is possible to reduces shading-area, therefore, it can further the quantity of main gate line be risen to 10.This cell piece is properly termed as many main grids cell piece or dereliction grid cell sheet, and wherein, tinsel substituted for the silver-colored main grid in conventional solar cell sheet and welding.
Present inventor finds through long-term research experiment, if use and pull out many parallel tinsels simultaneously, then many one metal wires are cut off, again many one metal wires fixing preparation method being soldered on cell piece simultaneously is prepared cell piece, this kind of mode is due to equipment and preparation precision, the restriction of technique etc., such as due to the effect of stress, when solar battery sheet is placed in a free state, there is certain bending, it is thus desirable to tinsel keeps certain rate of tension cell piece could be flattened, (experiment proves, for the copper wire of string diameter 0.2mm, its minimum tensile force 2N to be had).For keeping this tensile force, need to arrange the device of similar clip at every one metal wire two ends, this device needs to take certain space, and the space of cell piece is limited, therefore, prior art at most can only pull out at present on a cell piece simultaneously and the tinsel of fixing welding about 10, if it is desired to being further added by radical wiry will be extremely difficult.Because tinsel radical is the most, its free end is the most, and equipment needs to control more tinsel simultaneously, and wire-drawing equipment is required the highest by this.Meanwhile, the limited space of solar battery sheet, such as, the size of general single battery sheet is 156mm*156mm, needs the most accurately to control many one metal wires in the most limited space, and this is the highest to equipment requirements, especially the highest to required precision.Therefore, in current actual production, can not control the most simultaneously and weld many one metal wires, by increasing capacitance it is possible to increase the radical of conductor wire the most limited, general the most only about 10, and realize difficulty.
In order to solve this problem, Patents (US20100275976, and US20100043863) proposes a kind of technical scheme being fixed on transparent film layer by many one metal wires.I.e., first many parallel tinsels are fixed on transparent film layer by the way of bonding, then fit on cell piece by being bonded with many parallel hyaline membranes wiry, make tinsel contact with the secondary grid line on cell piece finally by laminating technology.The program fixes many one metal wires by transparent film layer, solve the problem simultaneously controlling many one metal wires, radical wiry can be increased further, but this scheme has almost abandoned welding procedure, i.e. tinsel is connected with secondary grid line not by welding procedure, but make tinsel contact with secondary grid line by laminating technology, thus derived current.
Although this scheme can promote radical wiry further, but, due to the existence of transparent film layer, the absorption of light can be affected, cause certain shading, thus cause the reduction of conversion efficiency.
The more important thing is, this employing transparent film layer is fixed scheme wiry and welding procedure cannot be used to connect tinsel and secondary grid line.This is because, on the one hand, if using welding procedure, the fusion temperature of transparent film layer have to be higher than welding temperature (welding temperature is typically at about 140 DEG C).Otherwise, if the fusion temperature of transparent film layer is less than welding temperature, when welding, adhesive film can melt, thus lose it and fix effect wiry, and tinsel can drift about, and is substantially reduced welding effect.
On the other hand, as well known to those skilled in the art, solar battery sheet needs to be in sealing state in use, to prevent water, air etc. from entering in cell piece, results in burn into short circuit etc.；And existing encapsulating material is generally EVA, its fusing point is generally 70-80 DEG C, well below welding temperature.If employing welding procedure, as it has been described above, the fusion temperature of transparent film layer needs higher than welding temperature, its inevitable fusing point also above encapsulating material, therefore encapsulation when, under package temperature, encapsulating material (EVA) melts, and transparent film layer will not melt, thus, when encapsulation, the encapsulating material of fusing is the adhesive film that cannot pass through solid, thus cell piece is completely sealed off, therefore, its sealing effectiveness is excessively poor, and actual product is easy to lose efficacy.Therefore, for the angle of encapsulation, needing again the fusion temperature of transparent film layer less than welding temperature, this is clearly an antinomy.
Therefore, this employing adhesive film is fixed scheme wiry and welding procedure cannot be used to be welded together with secondary grid line by tinsel, and its tinsel only actually simply contacts with the secondary grid line on cell piece, i.e. tinsel simply rides on secondary grid line.Therefore, the bonding strength of tinsel and secondary grid line is the lowest, in lamination process or during use, is very easy to depart from, causes loose contact, thus cause the efficiency of cell piece to be greatly lowered, even lost efficacy between tinsel and secondary grid line.Therefore, the most real being promoted and commercialization of product of this scheme is used.Therefore, the most ripe in the market dereliction grid solar cell.
Particularly tinsel is the most more, and tinsel be after weld, precision problem due to equipment, position precision that the most more tinsel with cell piece be connected can not be completely secured, the particularly degree of accuracy of the position of end, short circuit is formed and also to prevent tinsel from extending outside cell piece, the conductor wire generally formed is respectively positioned in cell piece, there is the situation around the edge less than cell piece in coiling arrangement, therefore, can there is part pair grid line and can not well connect with conductor wire in the edge of cell piece, cause the waste of electric current.
The application is intended to solve one of above-mentioned technical problem the most to a certain extent.
The present invention provides a kind of dereliction grid solar cell, and the conductive line number that its cell piece can be arranged can not only improve to more than 20, the most.The present invention forms conductor wire by radical less tinsel reciprocation extension, decrease free end, i.e. decrease the tinsel radical needing to control, solve the problem that space limits, but more conductor wire can be set on cell piece, and easily realize welding between a plurality of conductor wire with cell piece pair grid line.Simultaneously, in the dereliction grid solar cell that the present invention provides, owing to conducting electricity between filament and the secondary grid line of cell piece by being welded together, its connection is the most reliable, preparation is simple easily to be realized, and good seal performance, efficiency is high, it is possible to fully meets actual operation requirements and can produce by commercial.
To this end, the application proposes a kind of solaode chip arrays, this solaode chip arrays is simple to manufacture, low cost, and photoelectric transformation efficiency is high.
The application also proposes a kind of solar module with above-mentioned solaode chip arrays, and this solar module is simple to manufacture, low cost, and photoelectric transformation efficiency is high.
The application also proposes the preparation method of a kind of above-mentioned solar module.
The solaode chip arrays of embodiment according to a first aspect of the present invention, including multiple cell pieces, the plurality of cell piece is arranged into the matrix form of n × m；In same row's cell piece, being connected by a plurality of conductor wire between adjacent cell sheet, at least two described conductor wires are formed by reciprocation extension tinsel between the surface of adjacent cell sheet；In adjacent two row's cell pieces, a cell piece in a row and a cell piece in a+1 row are connected by a plurality of conductor wire, article at least two, described conductor wire is formed by the tinsel between the reciprocation extension surface of a cell piece in a arranges and the surface of a cell piece in a+1 row, wherein n is matrix column number, m is the row of matrix, and m-1 >=a >=1, the front of described cell piece is provided with secondary grid line and short grid line, described secondary grid line includes the middle secondary grid line intersected with described conductor wire and the edge pair grid line not intersected with described conductor wire, described short grid line is connected with described edge pair grid line, and described short grid line grid line secondary with in the middle of described conductor wire or at least one is connected, it is coated with weld layer on described tinsel, described tinsel is welded with described middle secondary grid line by described weld layer.
Solaode chip arrays according to the embodiment of the present application, by conductor wire is made up of the tinsel of reciprocation extension, tinsel uses coiling arrangement mode reciprocation extension between adjacent two cell pieces to form collapsed shape, the conductor wire of this structure is not only simple to manufacture, low cost, and be conducive to improving the photoelectric transformation efficiency of solaode chip arrays；And conductor wire uses the problem that in the conductor wire that the mode of coiling arrangement can avoid parallel tinsel to form, the disconnection of single electrical line or rosin joint etc. cause whole piece conductor wire to lose efficacy, it is to avoid the situation appearance that cell piece is unstable.Conductor wire is weldingly connected with secondary grid line, and the conductor wire in solar module will not occur drift and rosin joint, and shows of a relatively high electricity conversion.
Meanwhile, being joined directly together by conductor wire, thus decrease the consumption of busbar, connect distance shorter between each row's cell piece, resistance is less, decreases rosin joint；And conductor wire uses the mode of coiling arrangement can avoid the occurrence of the problem that conductor wire cut-out is brought；And by arranging short grid on the secondary grid line of the edge portions of cell piece sensitive surface, the secondary grid line of the edge portions owing to being unable to reach cell piece in conductor wire coiling during arranging so can be avoided and the portion of electrical current waste that causes；Use the tinsel being coated with low-melting alloy layer as conductor wire, so can improve the welding performance between conductor wire and secondary grid line and/or back electrode；Conductor wire in solar module will not occur drift and rosin joint, and shows of a relatively high electricity conversion.
The solar module of embodiment according to a second aspect of the present invention, including the upper cover plate being sequentially stacked, front adhesive film, cell piece array, back side adhesive film and backboard, described cell piece array is according to the solaode chip arrays described in above-described embodiment.
nullThe preparation method of the solar module of embodiment according to a third aspect of the present invention，At least two conductor wires will be formed between surface and the surface of another cell piece of a tinsel reciprocation extension cell piece in multiple cell pieces，Adjacent cell piece is connected by a plurality of conductor wire and forms cell piece array，Wherein said multiple cell piece is arranged with the matrix form of n × m，In same row's cell piece，Make by tinsel reciprocation extension between the surface of a cell piece with the surface of another adjacent cell piece，In adjacent two row's cell pieces，Make between the surface of a cell piece in the tinsel reciprocation extension surface of a cell piece in a arranges and a+1 row，To obtain cell piece array，Wherein n is matrix column number，M is the row of matrix，And m-1 >=a >=1，The front of described cell piece is provided with secondary grid line and short grid line，Described secondary grid line includes the middle secondary grid line intersected with described conductor wire and the edge pair grid line not intersected with described conductor wire，Described short grid line is connected with described edge pair grid line，And described short grid grid line secondary with in the middle of described conductor wire or at least one is connected，It is coated with weld layer on described tinsel，Described tinsel is welded with described middle secondary grid line by described weld layer；Upper cover plate, front adhesive film, described cell piece array, back side adhesive film and backboard are sequentially stacked, and make the front of described cell piece in the face of described front adhesive film, described cell piece the back side in the face of back side adhesive film, then carry out lamination and obtain solar module.
The application uses the electrical connection of the method for coiling, the most more conducively tinsel and cell piece, and switching performance is good is especially beneficial welding of tinsel and cell piece, does not haves the situations such as a large amount of conductor wire rosin joints, and the solar battery sheet of preparation is the most attractive in appearance, and performance is good.And the suitable conductor wire of bar number can be prepared, only need to use two tension clips, be not limited by a space, preparation technology the most easily realizes, and equipment and technique the simplest, it is easy to technology.The edge pair grid line not intersected with conductor wire by battery edge electrically connects with conductor wire, thus reducing current loss, short grid line can be formed by screen painting slurry, simple easily realization, and pass through screen painting, the most easy to control, can guarantee that the electrical connection of all thin grid and conductor wire, solve the precision problem that tinsel is connected with cell piece, prevent current loss, technique is simple, easily realizes, process costs is greatly lowered.
Accompanying drawing explanation
Fig. 1 is the floor map of the solaode chip arrays according to one embodiment of the application.
Fig. 2 is longitudinal schematic cross-section of the solaode chip arrays according to one embodiment of the application.
Fig. 3 is the horizontal schematic cross-section of the solaode chip arrays according to one embodiment of the application.
Fig. 4 is the schematic diagram wiry for forming conductor wire according to the embodiment of the present application.
Fig. 5 is the floor map of the solaode chip arrays according to another embodiment of the application.
Fig. 6 is the front plan schematic diagram of the solaode chip arrays according to the another embodiment of the application.
Fig. 7 is the schematic diagram of the reciprocation extension wiry according to the embodiment of the present application.
Fig. 8 is the schematic diagram of two cell pieces of the solaode chip arrays according to the embodiment of the present application.
Fig. 9 is that two cell pieces shown in Fig. 8 are formed by connecting by tinsel the schematic diagram of solaode chip arrays.
Figure 10 is the schematic diagram of the solar module according to the embodiment of the present application.
Figure 11 is the schematic partial cross-sectional view of solar module shown in Figure 10.
Figure 12 is the schematic diagram of the solaode chip arrays according to the application another embodiment.
Figure 13 is the wire in tension schematic diagram of comparative example 1.
Reference:
Cell piece assembly 100；
Upper cover plate 10；
Front adhesive film 20；
Cell piece array 30；Cell piece 31；First cell piece 31A；Second cell piece 31B；Cell piece matrix 311；Secondary grid line 312；Front pair grid line 312A；Back side pair grid line 312B；Edge pair grid line 3121；Middle secondary grid line 3122；Back of the body electric field 313；Back electrode 314；
Conductor wire 32 (32C)；Front side conductive line 32A；Back side conductor wire 32B；Tinsel body 321；Weld layer 322；Short grid line 33；Clip 34；
Back side adhesive film 40；
Lower cover 50.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In this application, in order to more understand and be easy to describe, below part term is explained.
Term " cell piece 311 " includes cell piece matrix 311, the secondary grid line 312 being located on cell piece matrix 311 front, the back of the body electric field 313 being located at the back side of cell piece matrix 311 and the back electrode 314 being located on back of the body electric field 313, thus, secondary grid line 312 is referred to as the secondary grid line 312 of cell piece 31, back of the body electric field 313 is referred to as the back of the body electric field 313 of cell piece 31, and back electrode 314 is referred to as the back electrode 314 of cell piece 31.
The intermediate products that " cell piece matrix 311 " such as can be obtained after the operations such as making herbs into wool, diffusion, etching edge, deposited silicon nitride layer by silicon chip, it should be understood that in the application, cell piece matrix 311 is not limited to be made up of silicon chip.
In other words, cell piece 311 includes silicon chip, some of silicon chip surface is processed layers, the secondary grid line of sensitive surface and the back of the body electric field 313 of shady face and back electrode 314, or other class solaodes not having front electrode of equivalent.
Term " battery unit " includes cell piece 31 and the conductor wire 32 being made up of tinsel S.
Term " solaode chip arrays 30 " includes the conductor wire 32 that multiple cell piece 31 is connected with by adjacent cell sheet 31 and is made up of tinsel S, and in other words, solaode chip arrays 30 is formed by multiple cell piece 31 arrangements being connected by conductor wire 32.
In solaode chip arrays 30, tinsel S constitutes the conductor wire 32 of battery unit, tinsel S extends in and should broadly understood between the surface of adjacent cell sheet 31, tinsel S can extend between the front of adjacent cell sheet 31, it is also possible to extends between front and the back side of another cell piece 31 of a cell piece 31 in adjacent cell sheet 31.Time between front and the back side of another cell piece 31 of a cell piece 31 in tinsel S extends in adjacent cell sheet 31, conductor wire 32 can include extending in the front side conductive line 32A electrically connected on the front of cell piece 31 and with the secondary grid line 312 of cell piece 31, and extend in back side conductor wire 32B, the tinsel S part between adjacent cell sheet 31 electrically connected on the back side of cell piece 31 and with the back electrode 314 of cell piece 31 be properly termed as connect conductor wire.
In this application, cell piece matrix 311, cell piece 31, battery unit, cell piece array 30 and solar module are intended merely to facilitate description, and it is not intended that restriction to the application.
The all scopes disclosed in the application all comprise end points and can independently combine.The end points of scope disclosed herein and any value are not limited to this accurate scope or value, and these scopes or value should be understood to the value comprised close to these scopes or value.
In this application, except as otherwise noted, directional terminology such as " upper and lower " typically refers to shown in the drawings upper and lower；" front " refers to solar module one side towards light in application process, namely sensitive surface；" back side " refers to solar module one side back to light in application process.
Specifically describe the solaode chip arrays 30 according to the embodiment of the present application below in conjunction with the accompanying drawings.
As shown in Figures 1 to 12, solaode chip arrays 30 according to the embodiment of the present application includes multiple cell piece 31, multiple cell pieces 31 are arranged into the matrix form of n × m, in same row's cell piece 31, tinsel reciprocation extension to form a plurality of conductor wire 32, is connected by many conductor wires 32 between adjacent cell sheet 31 between the surface of a cell piece 31 with the surface of another adjacent cell piece 31.
In adjacent two row's cell pieces 31, cell piece between the surface of a tinsel reciprocation extension cell piece 31 in a arranges with chien shih two row on the surface of a cell piece 31 in a+1 row is connected, wherein n is matrix column number, and m is the row of matrix, and m-1 >=a >=1.
The present invention does not limit to a plurality of conductor wire 32 and is formed by tinsel coiling, can part be formed by tinsel coiling, can also be whole, i.e. part can be formed by the tinsel of non-coiling, it is an object of the invention to reduce free end, improve working place, reciprocation extension can be the most once, and the terminating point of reciprocation extension does not the most limit, and starting point and ending point can be on same cell piece, can also be on different cell pieces, if containing around.
The front of cell piece 31 is provided with secondary grid line 312 and short grid line 33, secondary grid line 312 includes the middle secondary grid line 3122 intersected with conductor wire 32 and the edge pair grid line 3121 not intersected with conductor wire 32, short grid line 33 is connected with edge pair grid line 3121, and short grid line 33 grid line 3122 secondary with in the middle of conductor wire 32 or at least one is connected, being coated with weld layer on tinsel, tinsel is welded with centre pair grid line 3122 by weld layer.
In other words, solaode chip arrays 30 according to embodiments of the present invention is made up of 4 cell pieces 31 being at least arranged into two rows and two row, wherein, it is connected by a plurality of conductor wire 32 between adjacent two cell pieces 31 of same row, conductor wire 32 is made up of reciprocation extension tinsel S between adjacent two cell pieces 31, being connected also by a plurality of conductor wire 32 between adjacent two cell pieces 31 of same string, conductor wire 32 is made up of reciprocation extension tinsel between adjacent two cell pieces 31.
Each cell piece 31 includes cell piece matrix 311 and the secondary grid line 312 in the front being located at cell piece matrix 311 and short grid line 33 respectively, the back side of cell piece matrix 311 is provided with back electrode 314, being connected by a plurality of conductor wire 32 between adjacent two cell pieces 31, conductor wire 32 is made up of reciprocation extension tinsel S between adjacent two cell pieces 31.
Wherein, the secondary grid line 312 of the side surface being positioned at cell piece matrix 311 includes two parts, a portion pair grid line 312 intersects with conductor wire 32, this part pair grid line 312 is positioned at the centre position of cell piece matrix 311 and forms middle secondary grid line 3122, and another part pair grid line 312 does not intersects with conductor wire 32, this part pair grid line 312 is positioned at the edge of the side away from conductor wire 32 of cell piece matrix 311, forms edge pair grid line 3121.
Edge pair grid line 3121 is provided with the short grid line 33 that grid line 3122 secondary with in the middle of conductor wire 32 or at least one is connected, short grid line 33 is positioned at conductor wire 32 cannot arrive the edge portions of cell piece 31 during coiling is arranged, and can avoid the secondary grid line 312 of the edge portions owing to being unable to reach cell piece 31 in conductor wire 32 coiling during arranging and the portion of electrical current waste that causes.
That is, secondary grid line 312 and short grid line 33 it is respectively equipped with on the front of each cell piece 31, the back side of cell piece 31 is provided with back electrode 314, it is connected by a plurality of conductor wire 32 between adjacent two cell pieces 31, conductor wire 32 is made up of reciprocation extension tinsel between adjacent two cell pieces 31, and conductor wire 32 is provided with the weld layer for welding with secondary grid line 312, conductor wire 32 is weldingly connected with secondary grid line 312.
Solaode chip arrays according to the embodiment of the present application, by conductor wire 32 is made up of the tinsel S of reciprocation extension, tinsel S uses coiling arrangement mode reciprocation extension between adjacent two cell pieces 31 to form collapsed shape, the conductor wire S of this structure is not only simple to manufacture, low cost, and be conducive to improving the photoelectric transformation efficiency of solaode chip arrays；And conductor wire S uses the problem that in the conductor wire that the mode of coiling arrangement can avoid parallel tinsel to form, the disconnection of wall scroll conductor wire or rosin joint etc. cause whole piece conductor wire to lose efficacy, it is to avoid the situation appearance that cell piece is unstable.Conductor wire S is weldingly connected with secondary grid line 312, and the conductor wire S in solar module will not occur drift and rosin joint, and shows of a relatively high electricity conversion.Meanwhile, being joined directly together by conductor wire S, thus decrease the consumption of busbar, connect distance shorter between each row's cell piece 31, resistance is less, decreases rosin joint；And conductor wire S uses the mode of coiling arrangement can avoid the occurrence of the problem that conductor wire cut-out is brought；And by arranging short grid line 33 on the secondary grid line 312 of the edge portions of cell piece 31 sensitive surface, the secondary grid line 312 of the edge portions owing to being unable to reach cell piece 31 in conductor wire S coiling during arranging so can be avoided and the portion of electrical current waste that causes；Use the tinsel being coated with low-melting alloy layer as conductor wire 32, so can improve the welding performance between conductor wire and secondary grid line and/or back electrode；Conductor wire in solar module will not occur drift and rosin joint, and shows of a relatively high electricity conversion.
Here, cell piece 31 constitutes battery unit with the conductor wire 32 being made up of the tinsel S extended on this cell piece 31 surface, in other words, solaode chip arrays 30 according to the embodiment of the present application is made up of multiple battery units, and the conductor wire 32 of multiple battery units is made up of reciprocation extension tinsel S on the surface of cell piece 31.
It is to be appreciated that in this application, term " reciprocation extension " is referred to as " coiling ", may refer to tinsel S and extends along reciprocal stroke between the surface of cell piece 31.
In this application, " tinsel S reciprocation extension is between the surface of cell piece 31 " should broadly understood, such as, tinsel S can be with between the surface of a reciprocation extension cell piece 31 in adjacent cell sheet 31 and the surface of another cell piece 31, tinsel S can also extend through the surface to last cell piece 31, intermediate cell sheet 31 surface of predetermined quantity from the surface of first cell piece 31, then from the surface on the surface of the return of the surface of last cell piece 31 and the intermediate cell sheet 31 extending through described predetermined quantity to first cell piece 31, so repeat.
In addition, when cell piece 31 is by tinsel S parallel connection, tinsel S can be with reciprocation extension on the front of two cell pieces, in the case, tinsel S constitutes the front side conductive line 32A of two cell pieces of this parallel connection, alternatively, tinsel S reciprocation extension on the front of a cell piece 31 and by another tinsel S reciprocation extension on the back side of this cell piece 31, in the case, extending in the tinsel S on cell piece 31 front and constitute front side conductive line 32A, the tinsel S at the back side extending in cell piece 31 constitutes back side conductor wire 32B.
When cell piece 31 is one another in series by tinsel S, between front and the back side of another cell piece 31 of a tinsel S reciprocation extension cell piece 31 in adjacent cell sheet 31, in the case, the part that tinsel S extends on the front of a cell piece 31 constitutes the part composition back side conductor wire 32B that front side conductive line 32A, tinsel S extend on the back side of another cell piece 31 adjacent.In this application, unless expressly stated otherwise, conductor wire 32 can be understood as front side conductive line 32A, back side conductor wire 32B, or front side conductive line 32A and back side conductor wire 32B.
Here, term " reciprocation extension " can be understood as tinsel S and extends " one reciprocal " two conductor wires 32 of formation, and two conductor wires 32 are formed by an one metal wire S coiling, such as, adjacent two conductor wires form U-shaped structure or v-shaped structure, but the application is not limited to this.
Cell piece array 30 according to the embodiment of the present application, multiple conductor wires 32 being positioned on cell piece are made up of the tinsel S of reciprocation extension, and be connected by conductor wire 32 between adjacent cell sheet 31, therefore, cell piece surface is without printing expensive silver main grid, and manufacturing process is simple, it is not necessary to use welding to connect cell piece, tinsel S and the secondary grid line of cell piece and back electrode easy to connect, the cost of cell piece is substantially reduced.
In addition, owing to conductor wire 32 is made up of the tinsel S of reciprocation extension, the width (i.e. the width of tinsel projection on cell piece) of conductor wire 32 can reduce, reduce the shading-area in front, and, the quantity of conductor wire 32 can adjust easily, compared with the main gate line that silver slurry is formed, the resistance of conductor wire 32 reduces, and improves photoelectric transformation efficiency.Owing to tinsel S reciprocation extension forms conductor wire, when using cell piece array 30 to manufacture solar module 100, tinsel S is difficult to displacement, i.e. " drift " is less likely to occur tinsel, do not interfere with photoelectric transformation efficiency, further increase photoelectric transformation efficiency.
Below with reference to the accompanying drawings solaode chip arrays 30 according to the application specific embodiment is described.
With reference to Fig. 1-3, the solaode chip arrays 30 according to one specific embodiment of the application is described.
In the embodiment shown in Fig. 1-3, it is shown that two cell pieces of solaode chip arrays 30, in other words, it is shown that two cell pieces 31 being connected with each other by the conductor wire 32 being made up of tinsel S.
It is understandable that, the secondary grid line 312 (i.e. front pair grid line 312A) on front that cell piece 31 includes cell piece matrix 311, be located at cell piece matrix 311, the back of the body electric field 313 being located on the back side of cell piece matrix 311 and the back electrode 314 being located on back of the body electric field 313.In this application, it will be appreciated that, unless expressly stated otherwise, back electrode 314 can be the back electrode of conventional batteries sheet, such as, formed by silver slurry printing, it is also possible to the back side pair grid line 312B of the secondary grid line being analogous on cell piece front side of matrix, can also be discrete multiple weld parts, in this application, unless expressly stated otherwise, secondary grid line refers to the secondary grid line 312 on the front of cell piece matrix 311.
As Figure 1-3, in this embodiment, solaode chip arrays includes two cell piece 31A, 31B is (for convenience, referred to herein as the first cell piece 31A, second cell piece 31B), tinsel S reciprocation extension is at the front (sensitive surface of the first cell piece 31A, upper surface in Fig. 2) and the back side of the second cell piece 31B between, thus, tinsel S constitutes front side conductive line and the back side conductor wire of the second cell piece 31B of the first cell piece 31A, the secondary grid line of tinsel S and the first cell piece 31A welds and welds with the back electrode of the second cell piece 31B.
In certain embodiments, tinsel is reciprocation extension 10-60 time between the first cell piece 31A and the second cell piece 31B, preferably, as shown in Figure 1, tinsel reciprocation extension 12 times is to form 24 conductor wires, and tinsel is single, in other words, single metal wire reciprocation extension forms 24 conductor wires 12 times, and the spacing between adjacent conductive line can be 2.5 millimeters-15 millimeters.Certainly, tinsel of the present invention is not limited to single, can be many, and the present invention can also be the independent coiling of many one metal wires.According to this embodiment, compared with the conductor wire of conventional batteries sheet, quantity increases, thus reduces electric current from secondary grid line to the distance of conductor wire, decreases resistance, improves electricity conversion.In the embodiment shown in fig. 1, adjacent conductive line forms U-shaped structure, is thus easy to coiling wiry.Alternatively, the application is not limited to this, and such as, adjacent conductive line can also form v-shaped structure.
More preferably, as shown in Figure 4, tinsel S includes tinsel body 321 and the weld layer 322 of outer surface cladding thereof, tinsel is welded with secondary grid line and/or back electrode by the weld layer 322 of cladding, thus, it is easy to tinsel and secondary grid line and/or the electrical connection of back electrode, it is to avoid in connection procedure, tinsel drifts about and affects photoelectric transformation efficiency.Certainly, tinsel can be carried out with the electrical connection of cell piece in the lamination process of solar module, it is also possible to carries out before being laminated, it is preferable that be attached before being laminated.
Wherein it should be noted that, in this application, tinsel S refers to that reciprocation extension forms the tinsel of conductor wire 32 on cell piece 31, conductor wire 32 can include tinsel body 321 and the weld layer 322 of tinsel body 321 external sheath, i.e. tinsel S can also be to include tinsel body 321 and be coated on the weld layer 322 of tinsel body 321 outer layer, in embodiments herein, if without specified otherwise, tinsel refers to that reciprocation extension forms the tinsel S of conductor wire 32 on cell piece 31.
In some embodiments it may be preferred that tinsel body 321 is copper wire, certainly, tinsel S can also be copper wire, i.e. tinsel S not clad welded layer 322, but the application is not limited to this, and such as tinsel body 321 can also be aluminium wire.Preferably, tinsel S has circular cross section, and thus, more sunlight can be irradiated on cell piece matrix, improves photoelectric transformation efficiency further.
In certain embodiments, preferably, before tinsel contacts with cell piece, tinsel extends in a tensioned state, will stretch by tinsel, after being connected with the secondary grid line and back electrode of cell piece, tensile force wiry can be discharged, avoid the conductor wire drift when preparing solar module to affect photoelectric transformation efficiency the most further.
Fig. 5 shows the schematic diagram of the cell piece array of another embodiment according to the application.As shown in Figure 5, tinsel reciprocation extension is between the front of the front of the first cell piece 31A and the second cell piece 31B, thus, tinsel forms front side conductive line and the front side conductive line of the second cell piece 31B of the first cell piece 31A, in the case, first cell piece 31A and the second cell piece 31B is connected in parallel to each other, certainly, it is understandable that, preferably, the back electrode of the first cell piece 31A and the back electrode of the second cell piece 31B can also be connected by the back side conductor wire that another tinsel reciprocation extension is formed, alternatively, the back electrode of the first cell piece 31A and the back electrode of the second cell piece 31B can also be connected by the way of traditional.
An embodiment according to the application, is connected by a plurality of conductor wire 32 between adjacent cell sheet 31, and conductor wire 32 is made up of tinsel, between surface and the surface of another cell piece 31 of a tinsel reciprocation extension cell piece 31 in adjacent cell sheet 31.
Alternatively, disconnect at the place of turning back at tinsel after tinsel is connected with cell piece 31.
Preferably, the middle secondary grid line 3122 that short grid line 33 is nearest with distance edge pair grid line 3121 is connected.
In other detailed description of the invention of the application, short grid line 33 and conductor wire 32 connect.Preferably, the tinsel place of turning back on the front of short grid line 33 and cell piece 31 connects.
An embodiment according to the application, short grid line 33 is perpendicular to secondary grid line 312.Short grid line 33 preferably electrically connects with the bending part (near the end of edge portions) of the conductor wire 32 on the sensitive surface of cell piece 31, a solder joint can be increased, reduce the probability that welding position, edge disconnects, further enhance the adhesion of tinsel and cell piece.Being connected with the place of turning back herein can be understood as short grid 33 and there is intersection point with the place of turning back, the shortest grid 33 not terminate at the place of turning back.It is highly preferred that arrange at least short grid line 33 corresponding to each bending part.Certain short grid line 33 can also be connected with other parts of conductor wire 32, and such as segmental arc is the most preferable.
Under normal circumstances, owing to the distance between bending part and the edge of cell piece 31 of conductor wire 32 is comparatively short, the length typically 1-10 millimeter of this short grid line 33, preferably 2.4-7mm.The width of this short grid line 33 can be 0.05-0.5mm, and thickness can be 0.01-0.02mm.The radical of short grid line 33 is 3-40 root, preferably 6-20 root.
The set-up mode of short grid line 33 can be identical with the secondary grid line 312 on the sensitive surface of cell piece 31, such as, can print up by method for printing screen and secondary grid line 312 simultaneously, be same half tone with front pair grid line 3121 during printing, and its material can be silver-colored slurry.
In some preferred implementations of the present invention, the width of secondary grid line 312 is 40-80 micron, and thickness is 5-20 micron, and secondary grid line 312 is 50-120 bar, and the spacing of adjacent two secondary grid lines 312 is 0.5-3mm.
Alternatively, after being connected with cell piece 31 by tinsel, tinsel disconnects at the place of turning back.Tinsel disconnects tinsel after welding with cell piece 31 and forms multiple relatively independent conductor wire 32 at the place of turning back wiry, disconnect tinsel with cell piece 31 at the place of turning back wiry after tinsel welds, make between multiple conductor wire 32 relatively independent, the stress between cell piece can be reduced, reduce the peeling force of tinsel and cell piece binding site,, further increase the electricity conversion of solaode chip arrays 30.
In some detailed description of the invention of the application, in same row's cell piece, adjacent cell sheet is by reciprocation extension between the surface of a cell piece 31A with the surface of another cell piece 31B and constitutes the tinsel of conductor wire 32 and is connected.Alternatively, multiple cell pieces 31 are arranged into the matrix form of n × m, in adjacent two row's cell pieces 31, between the surface of a cell piece 31 in the surface of a tinsel reciprocation extension cell piece 31 in a arranges and a+1 row, wherein n is matrix column number, m is the row of matrix, and m-1 >=a >=1.
Alternatively, in adjacent two row's cell pieces 31, tinsel reciprocation extension is on the surface of the cell piece 31 of the end arranged at a and between the surface of the cell piece 31 of an end of a+1 row, and the end that an end of a row and a+1 arrange is positioned at the same side of matrix.
Preferably, in same row's cell piece 31, tinsel reciprocation extension is between the front of a cell piece 31 with the back side of another adjacent cell piece 31, in two adjacent row's cell pieces 31, tinsel reciprocation extension is in the front of the cell piece 31 of the end arranged at a and between the back side of a cell piece 31 of the end of a+1 row, with adjacent two row's cell pieces 31 of connecting.
In other words, solaode chip arrays 30 in the application is arranged into the matrix form of n × m by multiple cell pieces 31, i.e. in solaode chip arrays 30, cell piece 31 is multiple, and multiple cell pieces 31 are arranged with the matrix form of n × m, in same row's cell piece, conductor wire 32 extends from the surface of a cell piece 31A and electrically connects with the surface of adjacent another cell piece 31B, for realizing the connection between same row's cell piece 31；Between two adjacent row's cell pieces, the surface of a conductor wire cell piece 31 from a arranges is extended and electrically connects with the surface formation of a cell piece 31 in a+1 row, for realizing the connection between adjacent two row's cell pieces 31, wherein, n is columns, and m is row, and m-1 >=a >=1.
N can be 2-30, m can be 2-18.Preferably, multiple cell pieces 31 are arranged with the matrix-style of 12 × 6 or 10 × 6, the most often 12 or 10 cell pieces, totally 6 rows of row.According to above-mentioned preferred implementation, make can be directly connected by conductor wire between adjacent two row's cell pieces 31, avoid and need to be connected by busbar between adjacent two row's cell pieces 31, decrease the consumption of busbar, connect distance shorter, resistance is less, so that the power generation performance of solar module is higher.
Preferably, between two neighbouring row's cell pieces 31, the surface of the cell piece 31 of an end in making the surface of the cell piece 31 of a conductor wire end from a arranges extend and arrange with a+1 is formed and electrically connects.
A kind of preferred implementation according to the application, the position contacted with secondary grid line 312 and/or the back electrode 314 of cell piece 31 at conductor wire 32 is provided with weld layer, it is highly preferred that be provided with weld layer at the position that conductor wire 32 contacts with secondary grid line 312 and the back electrode 314 of cell piece 31.Weld layer can only be executed and be overlying on secondary grid line 312 and back electrode 314, it is also possible to executes and is overlying on conductor wire 32.Weld layer can be low-melting-point metal or alloy.Ashbury metal can be conventional ashbury metal, such as, can be the alloy of stannum and at least one metal in Bi, Pb, Ag and Cu, specifically, such as SnBi, SnPb, SnBiCu, SnPbAg etc..So can avoid, between conductor wire 32 and the secondary grid line 312 of cell piece and/or back electrode 314, rosin joint occurs so that the solar module of final preparation has of a relatively high electricity conversion.
In cell piece array 30, the thickness of weld layer can be 0.02-0.5:1 with the diameter ratio of conductor wire 32 (including front side conductive line 32A and back side conductor wire 32B).
In this application, when the position contacted with secondary grid line 312 and/or the back electrode 314 of cell piece 31 at conductor wire 32 (including front side conductive line 32A and back side conductor wire 32B) is provided with weld layer, conductor wire 32 can be the tinsel of the uncoated weld layer of this area routine, such as copper wire.
In one embodiment, conductor wire 32 (including front side conductive line 32A and back side conductor wire 32B) is the tinsel that Surface coating has low-melting alloy layer.Low-melting alloy layer can be that surface is coated with completely, it is also possible to surface portion is coated with.When low-melting alloy layer surface portion is coated with, the position that low-melting alloy layer is preferably formed in the secondary grid line 312 with cell piece 31 and/or back electrode 314 welds.When low-melting alloy layer surface is coated with completely, low-melting alloy layer can be coated on the periphery of tinsel body with ring-type form.The thickness of low-melting alloy layer can select in the larger context.Under preferable case, the thickness of low-melting alloy layer is 1-100 micron, more preferably 1-30 micron.The low-melting alloy forming low-melting alloy layer can be the low-melting alloy of this area routine, and its fusing point can be 100-220 DEG C.Under preferable case, low-melting alloy contains Sn and is selected from least one in Bi, In, Ag, Sb, Pb and Zn, more preferably contains Sn, Bi and is selected from least one in In, Ag, Sb, Pb and Zn.Specifically, at least one during low-melting alloy can be Sn-Bi alloy, In-Sn alloy, Sn-Pb alloy, Sn-Bi-Pb alloy, Sn-Bi-Ag alloy, In-Sn-Cu alloy, Sn-Bi-Cu alloy and Sn-Bi-Zn alloy.Most preferably, low-melting alloy is Bi-Sn-Pb alloy, such as Sn content be 40 weight %, Bi content be 55 weight % and alloy (namely Sn40%-Bi55%-Pb5%) that Pb content is 5 weight %.The thickness of low-melting alloy layer can be 0.001-0.06mm.The cross-sectional area of conductor wire 32 can be 0.01-0.5mm2.Tinsel body can be tinsel body commonly used in the art, such as copper wire.
In cell piece array 30, cell piece 31 can use the cell piece 31 that this area is conventional, such as, can be polycrystalline silicon battery plate 31.Secondary grid line 312 on the sensitive surface of cell piece 31 can be silver, copper, stannum, ashbury metal etc..The width of secondary grid line 312 can be 40-80 micron, and thickness can be 5-20 micron, and secondary grid line 312 can be 50-120 bar, and the spacing of adjacent two secondary grid lines 312 can be 0.5-3mm.The material of the back electrode 314 on the back side of cell piece 31 can be silver, copper, stannum, ashbury metal etc., and back electrode 314 usually banding, its width can be 1-4mm, and thickness can be 5-20 micron.
Below with reference to Fig. 6, the solaode chip arrays 30 according to another embodiment of the application is described.
Solaode chip arrays 30 according to the embodiment of the present application includes n × m cell piece 31, and in other words, multiple cell pieces 31 are arranged into the matrix form of n × m, and wherein n is columns, and m is row.More specifically, in this embodiment, 36 cell pieces 31 are arranged in 6 row and 6 rows, i.e. n=m=6.It is understood that the application is not limited to this, such as, row and columns can be unequal.For convenience, in figure 6, along direction from left to right, cell piece 31 in same row's cell piece 31 is referred to as the first, second, third, fourth, the 5th and the 6th cell piece 31 successively, along direction from the top down, the row of cell piece 31 is referred to as the first, second, third, fourth, the 5th and the 6th row's cell piece 31 successively.
In same row's cell piece 31, tinsel reciprocation extension is between the surface of a cell piece 31 with the surface of another adjacent cell piece 31, in two adjacent row's cell pieces 31, between the surface of a cell piece 31 in the surface of a tinsel reciprocation extension cell piece 31 in a arranges and a+1 row, and m-1 >=a >=1.
As shown in Figure 6, in concrete example, in same row's cell piece 31, tinsel reciprocation extension is between the front of a cell piece 31 with the back side of another adjacent cell piece 31, and thus, the cell piece 31 in same row is one another in series.In two adjacent row's cell pieces 31, tinsel reciprocation extension is in the front of the cell piece 31 of the end arranged at a and between the back side of a cell piece 31 of the end of a+1 row, the most adjacent two row's cell pieces 31 are one another in series.
More preferably, in adjacent two row's cell pieces 31, tinsel reciprocation extension is on the surface of the cell piece 31 of the end arranged at a and between the surface of the cell piece 31 of an end of a+1 row, the end that one end of a row and a+1 arrange is positioned at the same side of matrix, the most in figure 6, the right side of matrix it is positioned at.
More specifically, in the embodiment shown in fig. 6, in the first row, between the back side between front and second cell piece 31 of one one metal wire reciprocation extension the first cell piece 31, between the back side between front and the 3rd cell piece 31 of second one metal wire reciprocation extension the second cell piece 31, between the back side between front and the 4th cell piece 31 of the 3rd one metal wire reciprocation extension the 3rd cell piece 31, between the back side between front and the 5th cell piece 31 of the 4th one metal wire reciprocation extension the 4th cell piece 31, between the back side between front and the 6th cell piece 31 of the 5th one metal wire reciprocation extension the 5th cell piece 31, thus, adjacent cell sheet 31 in first row is one another in series by corresponding tinsel.
nullBetween the back side between front and the 6th cell piece 31 in adjacent second row of the 6th cell piece 31 in six roots of sensation tinsel reciprocation extension first row，Thus，First row and second row are one another in series，In the front of the 6th cell piece 31 in the 7th one metal wire reciprocation extension second row and second row between the back side between the 5th cell piece 31，In the front of the 5th cell piece 31 in the 8th one metal wire reciprocation extension second row and second row between the back side between the 4th cell piece 31，Until in the front of the second cell piece 31 in the 11st one metal wire reciprocation extension second row and second row between the back side between the first cell piece 31，Then，In the front of the first cell piece 31 in the 12nd one metal wire reciprocation extension second row and the 3rd row between the back side between the first cell piece 31，Thus second row and the 3rd row are one another in series.Then, successively the 3rd row is connected with the 4th row, 4th row connects with the 5th row, 5th row connects with the 6th row, thus complete the preparation of cell piece array 30, in this embodiment, busbar is set in the left side in the left side of the first cell piece 31 of first row and first cell piece 31 of the 6th row, one busbar connects the conductor wire extended from the left side of the first cell piece 31 of first row, and another busbar connects the conductor wire extended from the left side of first cell piece 31 of the 6th row.
As shown in the figure and above-mentioned, the conductor wire that is connected by between the cell piece of the embodiment of the present application is connected, first row, second row, the 3rd row, the 4th row, all use between the 5th row and the 6th row conductor wire realize series connection, as shown in the figure, it is outer for connecting other loads that tinsel can extend cell piece, such as, alternatively, can also be in parallel for preventing the diode of spottiness between second row and the 3rd row, between the 4th row and the 5th row, the connection of diode can use the technology of well known to a person skilled in the art, such as busbar.
But, the application is not limited to this, such as, can connect between first row and second row, the 3rd row and the 4th row series connection, the 5th row and the 6th row series connection, second row and the 3rd row are in parallel simultaneously, 4th row and the 5th row are in parallel, are respectively provided with busbar in this case, it is possible to arrange in the left side of respective row or right side.
Alternatively, the cell piece 31 in same row can be in parallel, such as, and the front reciprocation extension of the one metal wire the first cell piece 31 from the first row front by the second to the 6th cell piece 31.
In some detailed description of the invention of the application, the adhesion between tinsel and cell piece 31 is in the range of 0.1-0.8 newton.It is to say, the adhesion between conductor wire 32 and cell piece 31 is between 0.1-0.8 newton.Preferably, the adhesion between tinsel and cell piece 31 is in the range of 0.2-0.6 newton, and firm welding between cell piece and tinsel, cell piece is difficult to sealing-off occur in operation and transfer process, is difficult to loose contact occur, and hydraulic performance decline, cost is relatively low simultaneously.
Below with reference to Figure 10 and Figure 11, the solar module 100 according to the embodiment of the present application is described.
As shown in Figure 10 and Figure 11, upper cover plate 10, front adhesive film 20, above-mentioned cell piece array 30, back side adhesive film 40 and backboard 50 are included according to the solar module 100 of the embodiment of the present application.Upper cover plate 10, front adhesive film 20, above-mentioned cell piece array 30, back side adhesive film 40 and backboard 50 are sequentially stacked along the vertical direction.
Front adhesive film 20 and back side adhesive film 40 can be adhesive film commonly used in the art, it is preferable that front adhesive film 20 and back side adhesive film 40 polyethylene octene elastomer (POE) and/or ethylene-vinyl acetate copolymer (EVA).In this application, polyethylene octene elastomer (POE) and ethylene-vinyl acetate copolymer (EVA) can use product commonly used in the art or prepare according to method well known to those skilled in the art.
In embodiments herein, upper cover plate 10 and backboard 50 can select according to this area conventional technique and determine, it is preferable that upper cover plate 10 and backboard 50 can be each transparent sheet material, such as glass plate.
In the preparation process of solar module 100, first conductor wire can be welded with secondary grid line and the back electrode of cell piece 31, then each layer is laid out and is laminated.
Other component parts of solar module 100 according to the application can be known in the art, and does not repeats them here.
Concrete, solar module 100 includes upper cover plate 10, front adhesive film 20, cell piece array 30, back side adhesive film 40 and backboard 50.Cell piece array 30 includes multiple cell piece 31, it is connected by a plurality of conductor wire 32 between adjacent cell sheet 31, article at least two, conductor wire 32 is formed by reciprocation extension tinsel S between the surface of adjacent cell sheet, conductor wire 32 welds with secondary grid line, and front adhesive film 20 directly contacts with conductor wire 32 and is filled between adjacent conductor wire 32.
In other words, solar module 100 according to the embodiment of the present application includes being sequentially stacked upper cover plate 10, front adhesive film 20, cell piece array 30, back side adhesive film 40 and backboard 50 along the vertical direction, cell piece array 30 includes multiple cell piece 31 and connects a plurality of conductor wire 32 of multiple cell pieces 31, conductor wire 32 is made up of tinsel S, and tinsel S reciprocation extension is on the surface of two adjacent cell pieces 31.
Conductor wire 32 electrically connects with cell piece 31, wherein, front adhesive film 20 on cell piece 31 directly contacts with conductor wire 32 and is filled between adjacent conductor wire 32, front adhesive film 20 both can play the effect of fixing conductor wire 32, again can be by conductor wire 32 and outside air and steam isolation, thus avoid conductor wire 32 oxidized, it is ensured that photoelectric transformation efficiency.
Thus, according to the solar module 100 of the embodiment of the present application, by the main gate line of conductor wire 32 replacement conventional batteries sheet being made up of the tinsel S of reciprocation extension and welding, reduce cost；The tinsel S of reciprocation extension decreases the number of the free end of tinsel S, and when arranging tinsel S, requisite space is little, is not limited by a space, and the bar number of the conductor wire 32 being made up of tinsel S reciprocation extension can be greatly improved, and preparation is simple, it is possible to batch production；Front adhesive film 20 directly contacts with conductor wire 32 and is filled between adjacent conductor wire 32, effectively can be completely cut off with outside air, steam etc. by conductor wire 32, it is to avoid the oxidation of conductor wire 32, electricity conversion can be effectively ensured.
In some detailed description of the invention of the application, reciprocation extension between front and the back side of another cell piece 31 of a tinsel S cell piece 31 in adjacent cell sheet 31, front adhesive film 20 directly contacts and is filled between the adjacent conductive line 32 on the front of a cell piece 31 with the conductor wire 32 on the front of a cell piece 31, between the adjacent conductive line 32 at the back side that back side adhesive film 40 directly contacted with the conductor wire 32 at the back side of another cell piece 31 and be filled in another cell piece 31.
It is to say, in this application, adjacent two cell pieces 31 are connected by tinsel S-phase, and in two adjacent cell pieces 31, with tinsel S-phase even, the back side of another cell piece 31 is with tinsel S-phase even in the front of a cell piece 31.
Wherein, the front adhesive film 20 on cell piece 31 that front connects with tinsel S-phase directly contacts and is filled between adjacent conductor wire 32 with the tinsel S in this cell piece 31 front, and the back side directly contacts and be filled in the back side adhesive film 40 of the cell piece 31 that tinsel S-phase connects with the tinsel S at this cell piece 31 back side between adjacent conductor wire 32 (as shown in Figure 2).
Thus, solar module 100 according to the embodiment of the present application, not only the conductor wire 32 in the front of a part of cell piece 31 can be separated by front adhesive film 20 with the external world, the conductor wire 32 at the back side of percentage of batteries sheet 31 can also be separated by back side adhesive film 40 with the external world, may further ensure that the photoelectric transformation efficiency of solar module 100.
In some detailed description of the invention of the application, the size for conventional cell piece is 156mm × 156mm；The series resistance of solar module is 380-440 milliohm/60 slice, and the application is not limited to 60 simultaneously, can be 30,72 etc., and when for 72, the series resistance of solar module is 456-528 milliohm, the excellent electrical property of battery.
In some detailed description of the invention of the application, the size for conventional cell piece is 156mm × 156mm；The open-circuit voltage of solar module is 37.5-38.5V/60 sheet, and same the application is not limited to 60, can be 30,72 etc..Short circuit current is 8.9-9.4A, and short circuit current is unrelated with the number of cell piece.
In some detailed description of the invention of the application, the fill factor, curve factor of solar module is 0.79-0.82, and it is not affected by size and the number of cell piece, and it affects the electrical property of battery.
In some detailed description of the invention of the application, the size for conventional cell piece is 156mm × 156mm；The running voltage of solar module is 31.5-32V/60 sheet, and same the application is not limited to 60, can be 30,72 etc..Operating current is 8.4-8.6A, and operating current is unrelated with the number of cell piece.
In some detailed description of the invention of the application, the size for conventional cell piece is 156mm × 156mm；The conversion efficiency of solar module is 16.5-17.4%.Power is 265-280W/60 sheet.
The preparation method of the solar module 100 according to the embodiment of the present application is described below with reference to Fig. 7-9.
Specifically, comprise the following steps according to the preparation method of the solar module 100 of the embodiment of the present application:
nullAt least two conductor wires 32 will be formed between surface and the surface of another cell piece 31 of a tinsel reciprocation extension cell piece 31 in multiple cell pieces 31，Adjacent cell piece 31 is connected by a plurality of conductor wire 32 and forms cell piece array 30，Plurality of cell piece 31 is arranged with the matrix form of n × m，In same row's cell piece 31，Make by tinsel reciprocation extension between the surface of a cell piece 31 with the surface of another adjacent cell piece 31，In adjacent two row's cell pieces 31，Make between the surface of a cell piece 31 in the tinsel reciprocation extension surface of a cell piece 31 in a arranges and a+1 row，To obtain cell piece array 30，Wherein n is matrix column number，M is the row of matrix，And m-1 >=a >=1，The front of cell piece 31 is provided with secondary grid line 312 and short grid line 33，Secondary grid line 312 includes the middle secondary grid line 3122 being connected with conductor wire 32 and the edge pair grid line 3121 not being connected with conductor wire 32，Short grid line 32 is connected with edge pair grid line 3121，And short grid line 33 grid line 3122 secondary with in the middle of conductor wire 32 or at least one is connected，Weld layer it is coated with on tinsel，Tinsel is welded with centre pair grid line 3122 by weld layer.
Upper cover plate 10, front adhesive film 20, cell piece array 30, back side adhesive film 40 and backboard 50 are sequentially stacked, and make the front of cell piece 31 in the face of front adhesive film 20, cell piece 31 the back side in the face of back side adhesive film 40, then carry out lamination and obtain solar module 100.
The preparation of concrete short grid line 33 can be identical with the secondary grid line 312 on the sensitive surface of cell piece 31, such as, can print up with secondary grid line 312 by method for printing screen simultaneously, be same half tone with front pair grid line 3121 during printing, and its material can be silver-colored slurry.
The preparation method of the solar module 100 according to the embodiment of the present application includes first preparing cell piece array 30, then it is sequentially stacked upper cover plate 10, front adhesive film 20, cell piece array 30, back side adhesive film 40 and backboard 50, finally carries out lamination and obtain solar module 100.It is understandable that, the preparation of solar module 100 also includes other steps, such as with the space between sealant sealing upper cover plate 10 and backboard 50, and utilize U-frame to be tightened together by said elements, this it is known to those skilled in the art that, is not detailed herein.
The preparation of solaode chip arrays 30 includes tinsel reciprocation extension is electrically connected to form a plurality of conductor wire between the surface of cell piece 31 and with the surface of described cell piece 31, and the most adjacent cell piece 31 is connected by described a plurality of conductor wire and forms cell piece array 30.
Specifically, as it is shown in fig. 7, in a tensioned state, by an one metal wire reciprocation extension 12 times.Then, as shown in Figure 8, the first cell piece 31A and the second cell piece 31B is prepared.Next, as shown in Figure 9, the front of the first cell piece 31A is connected with tinsel and the back side of the second cell piece 31B is connected with tinsel, it is consequently formed cell piece array 30, Fig. 9 shows two cell pieces 31, as mentioned above, when cell piece array 30 has multiple cell piece 31, the back side in the front of one cell piece 31 with another adjacent cell piece 31 is connected by the tinsel utilizing reciprocation extension, will be connected with the back electrode tinsel of another cell piece 31 by the secondary grid line of a cell piece 31.Tinsel is by laying respectively at reciprocation extension under two clip tensionings of these two ends of root silk, and this tinsel has only to two clips can realize coiling, greatly reduces the consumption of clip, saves assembly space.
In the embodiment shown in fig. 9, adjacent cell sheet is one another in series, as it has been described above, as required, adjacent cell sheet can be connected in parallel to each other by tinsel.
The cell piece array 30 prepared is sequentially stacked with upper cover plate 10, front adhesive film 20, back side adhesive film 40 and backboard 50, and make the front of described cell piece 31 in the face of described front adhesive film 20, described cell piece 31 the back side in the face of back side adhesive film 40, then carry out lamination and obtain solar module 100.It is understood that tinsel welds with cell piece 31, tinsel can be carried out with the connection of cell piece 31 in lamination process, it is of course also possible to first connect, is laminated afterwards.
Front adhesive film 20 directly contacts placement with conductor wire 32, the melted gap filled between conductor wire 32 of front adhesive film 20 when lamination.Back side adhesive film 40 directly contacts placement with conductor wire 32, the melted gap filled between conductor wire 32 of back side adhesive film 40 when lamination.
Example 1
Example 1 is for the example of the solar module 100 that the application is described and preparation method thereof.
(1) tinsel S is prepared
Adhering to one layer of Sn40%-Bi55%-Pb5% alloy-layer (fusing point is 125 DEG C) on the surface of copper wire, wherein, the cross-sectional area of copper wire is 0.04mm2, the thickness of alloy-layer is 16 microns, thus prepares tinsel S.
(2) solar module 100 is prepared
The POE adhesive film (melt temperature is 65 DEG C) of a size of 1630 × 980 × 0.5mm is provided, and the glass plate of a size of 1633 × 985 × 3mm and polycrystalline silicon battery plate 31 that 60 chip sizes are 156 × 156 × 0.21mm are correspondingly provided.The front of cell piece 31 has 91 secondary grid lines (material is silver, and width is 60 microns, and thickness is 9 microns), and it is 1.7mm that every secondary grid line runs through the distance between cell piece 31, and adjacent pair grid line the most in the vertical.
While printing forms secondary grid line, utilizing newly-designed secondary aperture plate version to print short grid line at front one lateral edges of cell piece, short grid line is vertical with secondary grid line simultaneously, it is connected on piece secondary grid of this lateral edges outermost, the a length of 5.1mm of the short grid that printing is formed, radical is 8, and width is 0.2mm.
The back side of cell piece 31 has 5 back electrodes (material is stannum, and width is 1.5 millimeters, and thickness is 10 microns), and the distance that every back electrode runs through between cell piece 31, and adjacent two back electrodes the most in the vertical is 31mm.
60 cell pieces 31 are arranged with a matrix type (6 rows 10 arrange), between two cell pieces 31 adjacent in same row, make tinsel state reciprocation extension in tension between the front and the back side of another cell piece of a cell piece 31, tinsel is by laying respectively at reciprocation extension under two clip tensionings of these two ends of root silk, the place of turning back of reciprocation extension formation intersects with short grid line, thus form 15 parallel conductor wires, and the secondary grid line of a cell piece 31 is welded with conductor wire, the back electrode of another cell piece 31 is welded with conductor wire, and the distance between the adjacent conductive line being parallel to each other is 9.9mm, thus by a row for 10 cell piece series connection, arrange identical tinsel by method as above to obtain identical conductor wire this kind of battery strings of 6 row is connected into array.Then, by upper glass plates, upper POE adhesive film, in the matrix form arrangement and stack the most successively with multiple cell pieces of welded wire, lower POE adhesive film and lower glass plate, wherein, make the sensitive surface of cell piece 31 in the face of front adhesive film 20, front adhesive film 20 directly contacts with conductor wire 32, make the back side of cell piece 31 in the face of back side adhesive film 40, it is subsequently placed in laminating machine and is laminated, front adhesive film 20 is filled between adjacent conductor wire 32, thus prepares solar module A1.
Comparative examples 1
Comparative examples 1 is with the difference of example 1: use conventional half tone, does not print short grid line, thus prepare solar module D1 as shown in figure 12 while the secondary grid of printing.
Comparative examples 2
Comparative examples 2 is with the difference of example 1: arranged with a matrix type by cell piece, the tinsel that 15 are cascaded is pasted at transparent adhesive film layer, tinsel is pasted on solar battery sheet, between two adjacent cell pieces, then tinsel connects the back side of the front of a cell piece and another cell piece, upper glass plates, upper POE adhesive film, transparent adhesive film layer, in the matrix form arrangement and the multiple cell pieces, transparent adhesive film layer, lower POE adhesive film and the lower glass plate that are connected with tinsel is stacked the most successively.Thus prepare solar module D2.
Comparative examples 3
Comparative examples 1 is with the difference of example 1:
Cell piece 31 is arranged with a matrix type, and between two adjacent cell pieces 31, use wire drawing mode as shown in fig. 13 that, by clip 34 tensioning by every one metal wire end of 15 tinsels parallel to each other, cell piece is flattened, the tension force of clip is 2N, these each of 15 tinsels parallel to each other are individually welded with the secondary grid line in the front of a cell piece 31, and weld with the back electrode at the back side of another cell piece, and the distance between the adjacent conductive line 32C being parallel to each other is 9.9mm.Thus prepare solar module D3.
Example 2
Example 2 is for the example of the solar module that the application is described and preparation method thereof.
(1) tinsel S is prepared
Adhering to one layer of Sn40%-Bi55%-Pb5% alloy-layer (fusing point is about 125 DEG C) on the surface of copper wire, wherein, the cross-sectional area of copper wire is 0.03mm2, the thickness of alloy-layer is 10 microns, thus prepares tinsel S.
(2) solar module is prepared
There is provided the EVA adhesive film layer (melt temperature is 60 DEG C) of a size of 1630 × 980 × 0.5mm, it is provided that the glass plate of a size of 1633 × 985 × 3mm and the polycrystalline silicon battery plate 31 that 60 chip sizes are 156 × 156 × 0.21mm.The sensitive surface of cell piece 31 is provided with 91 secondary grid lines, and (material is silver, width is 60 microns, thickness is 9 microns), the distance that every secondary grid line runs through between cell piece 31, and adjacent two secondary grid lines the most in the vertical is 1.7mm, and the back side of cell piece 31 is provided with 5 back electrodes, and (material is stannum, width is 1.5 millimeters, thickness is 10 microns), and the distance that every back electrode runs through between cell piece 31, and adjacent two back electrodes the most in the vertical is 31mm.
While printing forms secondary grid line, utilizing newly-designed secondary aperture plate version to print short grid line at front one lateral edges of cell piece, short grid line is vertical with secondary grid line simultaneously, it is connected on piece secondary grid of this lateral edges outermost, the a length of 3.4mm of the short grid that printing is formed, radical is 10, and width is 0.1mm.
60 cell pieces 31 are arranged with a matrix type (6 rows 10 arrange), between two cell pieces 31 adjacent in same row, make tinsel state reciprocation extension in tension between the front and the back side of another cell piece of a cell piece 31, tinsel is by laying respectively at reciprocation extension under two clip tensionings of these two ends of root silk, the place of turning back of reciprocation extension formation intersects with short grid line, thus form 20 parallel conductor wires, and the secondary grid line of a cell piece 31 is welded with conductor wire, the back electrode of another cell piece 31 is welded with conductor wire, and the distance between the adjacent conductive line being parallel to each other is 7mm, thus by a row for 10 cell piece series connection, arrange identical tinsel by method as above to obtain identical conductor wire this kind of battery strings of 6 row is connected into array.Then, by upper glass plates, upper POE adhesive film, in the matrix form arrangement and stack the most successively with multiple cell pieces of welded wire, lower POE adhesive film and lower glass plate, wherein, make the sensitive surface of cell piece 31 in the face of front adhesive film, make the back side of cell piece 31 in the face of back side adhesive film, it is subsequently placed in laminating machine and is laminated, thus prepare solar module A2.
Example 3
Method according to example 2 prepares solar module, difference with example 2 is: while printing forms secondary grid line, utilize newly-designed secondary aperture plate version to print short grid line at front one lateral edges of cell piece simultaneously, short grid line is vertical with secondary grid line, it is connected on piece secondary grid of this lateral edges outermost, the a length of 5.1mm of the short grid that printing is formed, radical is 10, width is 0.15mm, what reciprocation extension was formed turn back to be in starts between several second and the 3rd from having short grid side, and described short grid are crossing with the 3rd secondary grid.
Example 4
Method according to example 2 prepares solar module, and the difference with example 2 is:
After tinsel welds with secondary grid line, by tinsel from the place's of turning back cut-out segmental arc to form 20 one metal wires the most parallel to each other, the distance between the adjacent main grid line being parallel to each other is 7mm.Thus prepare solar module A4.
Example 5
Method according to example 1 prepares solar module, and the difference with example 1 is: alloy-layer is 50%Sn-48%Bi-1.5%Ag-0.5%Cu alloy-layer (fusing point is 160 DEG C).So prepare solar module A5.
Example 6
Method according to example 1 prepares solar module, and the difference with example 1 is: alloy-layer is 58%Bi-42%Sn.So prepare solar module A6.
Example 7
Method according to example 1 prepares solar module, and the difference with example 1 is: alloy-layer is 65%Sn-20%Bi-10%Pb-5%Zn.So prepare solar module A7.
Test case 1
(1) whether drifted about by the tinsel in naked-eye observation method observation solar module；
(2) use single flash operation simulator solar module prepared by above-mentioned example and comparative examples to test according to method disclosed in IEC904-1, test condition be standard test condition (STC): light intensity be 1000W/m2；Spectrum is AM1.5；Temperature is 25 DEG C, records the photoelectric transformation efficiency of each cell piece.
Result is as shown in table 1 below.
Table 1
Wherein, fill factor, curve factor represents the maximum power point power of solar module and the ratio of the peak power (open-circuit voltage * short circuit current) during zero internal resistance in theory, characterize the actual power close degree to theoretical maximum power, this value is the biggest, illustrate that photoelectric transformation efficiency is the highest, general series resistance is little, and fill factor, curve factor is the biggest；Photoelectric transformation efficiency is finger assembly (light intensity 1000W/m under standard illumination condition2), assembly converts light energy into the ratio of electric energy；Series resistance is equivalent to the internal resistance of solar components, and its value is the biggest, and assembly property is the poorest；Fill factor, curve factor, represents the actual peak power of assembly and the ratio of theoretical maximum power, and numerical value is the biggest, and assembly property is the best；Open-circuit voltage is assembly voltage under standard illumination condition, during open circuit；During short circuit current, assembly is under standard illumination condition, electric current during short circuit；Running voltage is assembly output voltage under standard illumination condition, when working with peak power；Operating current is assembly output electric current under standard illumination condition, when working with peak power；Power be finger assembly under standard illumination condition, the peak power that can reach.
By the result of table 1 it can be seen that the solar module of the embodiment of the present application will not occur the problem that tinsel drifts about, and of a relatively high photoelectric transformation efficiency can be obtained.
Test case 2
(1) welded wire to cell piece surface, tinsel is vertical with the secondary grid line of cell piece；
(2) cell piece being horizontally placed on the test position of tension tester, will place briquetting on cell piece, briquetting is placed in both sides wiry so that during test, cell piece is not pulled up；
(3) tinsel is clipped on the draw ring of strain gauge, direction of pull and cell piece angle at 45 °；
(4) start strain gauge, make strain gauge the most upwards uniform motion, by tinsel from the pull-up of cell piece surface, the pulling force data that record strain gauge records, take its average and be this pulling force data wiry.
Result is as shown in table 2 below.
Table 2
By the result of table 2 it can be seen that the solar module of the embodiment of the present application tinsel glass from cell piece is peeled off required for pulling force bigger, i.e. illustrate the solaode of the embodiment of the present application set up in tinsel higher with the connective stability of cell piece.
In describing the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include that fisrt feature directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include that fisrt feature directly over second feature and oblique upper, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, being not considered as limiting the invention, above-described embodiment can be changed in the case of without departing from the principle of the present invention and objective, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.

Claims (38)

1. a solaode chip arrays, it is characterised in that include that multiple cell piece, the plurality of cell piece are arranged into n The matrix form of × m,
In same row's cell piece, being connected by a plurality of conductor wire between adjacent cell sheet, at least two described conductor wires are by back and forth Extend in the tinsel between the surface of adjacent cell sheet to be formed；
In adjacent two row's cell pieces, a cell piece in a row and a cell piece in a+1 row are by a plurality of conduction Line is connected, during at least two articles of described conductor wires are arranged with a+1 by the surface of a reciprocation extension cell piece in a arranges Tinsel between the surface of one cell piece is formed, and wherein n is matrix column number, and m is the row of matrix, and m-1 >=a >=1,
The front of described cell piece is provided with secondary grid line and short grid line, and described secondary grid line includes the centre intersected with described conductor wire Secondary grid line and the edge pair grid line not intersected with described conductor wire, described short grid line is connected with described edge pair grid line, and described Short grid line grid line secondary with in the middle of described conductor wire or at least one is connected, and described tinsel is coated with weld layer, described metal Silk is welded with described middle secondary grid line by described weld layer.
Solaode chip arrays the most according to claim 1, it is characterised in that in adjacent two row's cell pieces, institute State tinsel reciprocation extension in the surface of the cell piece of the end being positioned at a row and the end being positioned at a+1 row Between the surface of cell piece, the end that an end of described a row and described a+1 arrange is positioned at the same of described matrix Side.
Solaode chip arrays the most according to claim 2, it is characterised in that in same row's cell piece, described Tinsel reciprocation extension between the front of a cell piece with the back side of another adjacent cell piece,
In two adjacent row's cell pieces, described tinsel reciprocation extension is just being positioned at the cell piece of the end that a arranges Face and a+1 row end a cell piece the back side between, with adjacent two row's cell pieces of connecting.
Solaode chip arrays the most according to claim 2, it is characterised in that in same row's cell piece, described Tinsel reciprocation extension between the front of a cell piece with the back side of another adjacent cell piece,
In two adjacent row's cell pieces, described tinsel reciprocation extension is at the back of the body of the cell piece of the end being positioned at a row Face and a+1 row end a cell piece front between, with adjacent two row's cell pieces of connecting.
5. according to the solaode chip arrays according to any one of claim 1-4, it is characterised in that reciprocation extension is same Tinsel between the adjacent cell sheet of one row is one, and the tinsel that reciprocation extension is between the cell piece of adjacent row is one Root.
6. according to the solaode chip arrays according to any one of claim 1-5, it is characterised in that described tinsel is past Extend 10-60 time again.
7. according to the solaode chip arrays according to any one of claim 1-6, it is characterised in that adjacent two conductions Spacing between line is 2.5-15mm.
8. according to the solaode chip arrays according to any one of claim 1-7, it is characterised in that adjacent two conductions Line forms U-shaped structure or v-shaped structure.
9. according to the solaode chip arrays according to any one of claim 1-8, it is characterised in that described tinsel is Copper wire.
10. according to the solaode chip arrays according to any one of claim 1-9, it is characterised in that described tinsel There is circular cross section.
11. according to the solaode chip arrays according to any one of claim 1-10, it is characterised in that described tinsel Reciprocation extension in a tensioned state before being connected with described cell piece.
12. according to the solaode chip arrays according to any one of claim 1-11, it is characterised in that described weld layer For alloy.
13. solaode chip arrays according to claim 12, it is characterised in that described weld layer contain Sn with And at least one in Bi, In, Ag, Sb, Pb and Zn.
14. solaode chip arrays according to claim 12, it is characterised in that described weld layer contains Sn, Bi And at least one in In, Ag, Sb, Pb and Zn.
15. according to the solaode chip arrays according to any one of claim 1-14, it is characterised in that described weld layer Thickness and described diameter ratio wiry be 0.02-0.5:1.
16. according to the solaode chip arrays according to any one of claim 1-15, it is characterised in that described short grid line It is perpendicular to described secondary grid line.
17. according to the solaode chip arrays according to any one of claim 1-16, it is characterised in that described tinsel Disconnect at this place of turning back wiry after being connected with described cell piece.
18. according to the solaode chip arrays according to any one of claim 1-17, it is characterised in that described short grid line Width be 0.05-0.5mm, the width of described secondary grid line is 40-80 micron, and thickness is 5-20 micron, described secondary grid line For 50-120 bar, and the spacing of adjacent two secondary grid lines is 0.5-3mm.
19. according to the solaode chip arrays according to any one of claim 1-18, it is characterised in that described tinsel And the adhesion between described secondary grid line is in the range of 0.1-0.8 newton.
20. solaode chip arrays according to claim 19, it is characterised in that described tinsel and described secondary grid Adhesion between line is in the range of 0.2-0.6 newton.
21. 1 kinds of solar modules, it is characterised in that the upper cover plate that includes being sequentially stacked, front adhesive film, battery Chip arrays, back side adhesive film and backboard, described cell piece array is the solaode according to any one of claim 1-20 Chip arrays.
22. solar modules according to claim 21, it is characterised in that described front adhesive film is led with described Electric wire directly contacts and is filled between adjacent conductor wire.
23. solar modules according to claim 21, it is characterised in that described tinsel is at adjacent cell sheet In a cell piece front and the back side of another cell piece between reciprocation extension, described front adhesive film and one Conductor wire on the front of cell piece directly contacts and is filled between the adjacent conductive line on the front of one cell piece, Described back side adhesive film directly contacts with the conductor wire at the back side of another cell piece described and is filled in another cell piece described The back side adjacent conductive line between.
24. according to the solar module according to any one of claim 21-23, it is characterised in that described cell piece Size be 156mm × 156mm；The series resistance of described solar module is 380-440 milliohm/60 slice.
25. according to the solar module according to any one of claim 21-23, it is characterised in that described cell piece Size be 156mm × 156mm；The open-circuit voltage of described solar module is 37.5-38.5V/60 sheet；Short circuit current For 8.9-9.4A.
26. according to the solar module according to any one of claim 21-23, it is characterised in that described solar energy The fill factor, curve factor of battery component is 0.79-0.82.
27. according to the solar module according to any one of claim 21-23, it is characterised in that described cell piece Size be 156mm × 156mm；The running voltage of described solar module is 31.5-32V/60 sheet；Operating current is 8.4-8.6A。
28. according to the solar module according to any one of claim 21-23, it is characterised in that described cell piece Size be 156mm × 156mm；The conversion efficiency of described solar module is 16.5-17.4%；Power is 265-280W / 60.
The preparation method of 29. 1 kinds of solar modules, it is characterised in that including:
By between surface and the surface of another cell piece of a tinsel reciprocation extension cell piece in multiple cell pieces Forming at least two conductor wires, adjacent cell piece is connected by a plurality of conductor wire and forms cell piece array, wherein said many Individual cell piece is arranged with the matrix form of n × m, in same row's cell piece, makes by tinsel reciprocation extension at a cell piece Surface and the surface of another adjacent cell piece between, in adjacent two row's cell pieces, make tinsel reciprocation extension Between the surface of a cell piece in the surface of a cell piece in a row and a+1 row, to obtain cell piece array, Wherein n is matrix column number, and m is the row of matrix, and m-1 >=a >=1, the front of described cell piece be provided with secondary grid line and Short grid line, described secondary grid line includes that the middle secondary grid line intersected with described conductor wire and the edge not intersected with described conductor wire are secondary Grid line, described short grid line is connected with described edge pair grid line, and described short grid and described conductor wire or secondary grid in the middle of at least one Line is connected, and described tinsel is coated with weld layer, and described tinsel is welded with described middle secondary grid line by described weld layer；
Upper cover plate, front adhesive film, described cell piece array, back side adhesive film and backboard are sequentially stacked, and make described electricity Back side adhesive film faced by the back side of described front adhesive film, described cell piece faced by the front of pond sheet, then carries out lamination and obtains Solar module.
The preparation method of 30. solar modules according to claim 29, it is characterised in that at adjacent two row's electricity In the sheet of pond, described tinsel reciprocation extension is made to arrange with being positioned at a+1 on the surface of the cell piece of the end being positioned at a row An end cell piece surface between, an end of an end and the described a+1 row of wherein said a row It is positioned at the same side of described matrix.
The preparation method of 31. solar modules according to claim 30, it is characterised in that at same row's battery In sheet, make described tinsel reciprocation extension between the front of a cell piece with the back side of another adjacent cell piece,
In two adjacent row's cell pieces, make described tinsel reciprocation extension at the cell piece of the end being positioned at a row Front and a+1 row end a cell piece the back side between, with adjacent two row's cell pieces of connecting.
The preparation method of 32. solar modules according to claim 30, it is characterised in that at same row's battery In sheet, make described tinsel reciprocation extension between the front of a cell piece with the back side of another adjacent cell piece,
In two adjacent row's cell pieces, make described tinsel reciprocation extension at the cell piece of the end being positioned at a row The back side and a+1 row end a cell piece front between, with adjacent two row's cell pieces of connecting.
33. according to the preparation method of the solar module according to any one of claim 29-32, it is characterised in that Reciprocation extension tinsel between the adjacent cell sheet of same row is one, and reciprocation extension is between the cell piece of adjacent row Tinsel be one.
34. according to the preparation method of the solar module according to any one of claim 29-33, it is characterised in that Described tinsel reciprocation extension 10-60 time.
35. according to the preparation method of the solar module according to any one of claim 29-34, it is characterised in that Spacing between adjacent two conductor wires is 2.5-15mm.
36. according to the preparation method of the solar module according to any one of claim 29-35, it is characterised in that Described tinsel is copper wire.
37. according to the preparation method of the solar module according to any one of claim 29-36, it is characterised in that Described tinsel reciprocation extension in a tensioned state before being connected with described cell piece.
38. according to the solaode chip arrays according to any one of claim 29-37, it is characterised in that described metal Silk is welded with described secondary grid line and described short grid by the weld layer being coated with on the wire.
CN201510219182.6A 2014-10-31 2015-04-30 Solar cell chip arrays, solar cell module and preparation method thereof Active CN106206765B (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US14/738,244 US20160126361A1 (en) 2014-10-31 2015-06-12 Solar cell module and manufacturing method thereof
US14/738,409 US10529868B2 (en) 2014-10-31 2015-06-12 Solar cell array, solar cell module and manufacturing method thereof
US14/738,390 US20160126363A1 (en) 2014-10-31 2015-06-12 Solar cell module and manufacturing method thereof
US14/738,516 US20160126389A1 (en) 2014-10-31 2015-06-12 Solar cell unit, solar cell array, solar cell module and manufacturing method thereof
US14/738,664 US20160126390A1 (en) 2014-10-31 2015-06-12 Solar cell unit, solar cell array, solar cell module and manufacturing method thereof
US14/738,368 US20160126388A1 (en) 2014-10-31 2015-06-12 Solar cell array, solar cell module and manufacturing method thereof
US14/738,587 US10193003B2 (en) 2014-10-31 2015-06-12 Solar cell unit, solar cell array, solar cell module and manufacturing method thereof
US14/738,637 US20160126373A1 (en) 2014-10-31 2015-06-12 Method for manufacturing solar cell module
US14/738,322 US20160126372A1 (en) 2014-10-31 2015-06-12 Solar cell array, solar cell module and manufacturing method thereof
US14/738,578 US10069019B2 (en) 2014-10-31 2015-06-12 Solar cell unit, solar cell array, solar cell module and manufacturing method thereof
US14/738,677 US10381493B2 (en) 2014-10-31 2015-06-12 Solar cell unit, solar cell array, solar cell module and manufacturing method thereof
PCT/CN2015/084094 WO2016065946A1 (en) 2014-10-31 2015-07-15 Solar cell array, solar cell module and manufacturing method thereof
US14/928,863 US20160126391A1 (en) 2014-10-31 2015-10-30 Solar cell module and manufacturing method thereof

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
CN201410608576 2014-10-31
CN201410606675 2014-10-31
CN201410608579 2014-10-31
CN2014106085802 2014-10-31
CN201410608469 2014-10-31
CN2014106067005 2014-10-31
CN201410606607 2014-10-31
CN201410606601 2014-10-31
CN2014106084693 2014-10-31
CN2014106066074 2014-10-31
CN201410606700 2014-10-31
CN2014106066017 2014-10-31
CN2014106085770 2014-10-31
CN2014106066750 2014-10-31
CN201410608580 2014-10-31
CN2014106085766 2014-10-31
CN201410608579X 2014-10-31
CN201410608577 2014-10-31
CN2015100856666 2015-02-17
CN201510085666 2015-02-17

Publications (2)

Publication Number Publication Date
CN106206765A true CN106206765A (en) 2016-12-07
CN106206765B CN106206765B (en) 2018-02-09

Family

ID=57457724

Family Applications (23)

Application Number Title Priority Date Filing Date
CN201510219540.3A Active CN106206818B (en) 2014-10-31 2015-04-30 Solar battery cell, solar cell module and preparation method thereof
CN201510217687.9A Active CN106206762B (en) 2014-10-31 2015-04-30 Solar battery chip arrays, solar cell module and preparation method thereof
CN201510218562.8A Pending CN106206814A (en) 2014-10-31 2015-04-30 Solar battery cell, conductor wire, array, battery component and preparation method thereof
CN201510219182.6A Active CN106206765B (en) 2014-10-31 2015-04-30 Solar cell chip arrays, solar cell module and preparation method thereof
CN201510218697.4A Active CN106206816B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510221302.6A Pending CN106206819A (en) 2014-10-31 2015-04-30 Solaode chip arrays, solar module and preparation method thereof
CN201510219366.2A Active CN106206767B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510218563.2A Active CN106206815B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510218574.0A Pending CN106206763A (en) 2014-10-31 2015-04-30 Solar battery cell, cell piece array, battery component and preparation method thereof
CN201510219565.3A Pending CN106206769A (en) 2014-10-31 2015-04-30 Solar module and preparation method thereof
CN201510218535.0A Pending CN106206813A (en) 2014-10-31 2015-04-30 Solar battery cell, conductor wire, array, battery component and preparation method thereof
CN201510219353.5A Pending CN106206766A (en) 2014-10-31 2015-04-30 Solar battery cell, cell piece array, battery component and preparation method thereof
CN201510219378.5A Active CN106206768B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510217551.8A Active CN106206761B (en) 2014-10-31 2015-04-30 Solar cell chip arrays, solar cell module and preparation method thereof
CN201510217609.9A Active CN106206808B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510217617.3A Active CN106206810B (en) 2014-10-31 2015-04-30 Solar battery chip arrays, solar cell module and preparation method thereof
CN201510218489.4A Active CN106206812B (en) 2014-10-31 2015-04-30 Solar battery sheet, solar cell module and preparation method thereof
CN201510217573.4A Pending CN106206807A (en) 2014-10-31 2015-04-30 Solaode chip arrays, solar module and preparation method thereof
CN201510217616.9A Pending CN106206809A (en) 2014-10-31 2015-04-30 Solar module and preparation method thereof
CN201510219417.1A Active CN106206817B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510218635.3A Active CN106206764B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510217625.8A Active CN106206811B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510219436.4A Pending CN106206834A (en) 2014-10-31 2015-04-30 The preparation method of solar module

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN201510219540.3A Active CN106206818B (en) 2014-10-31 2015-04-30 Solar battery cell, solar cell module and preparation method thereof
CN201510217687.9A Active CN106206762B (en) 2014-10-31 2015-04-30 Solar battery chip arrays, solar cell module and preparation method thereof
CN201510218562.8A Pending CN106206814A (en) 2014-10-31 2015-04-30 Solar battery cell, conductor wire, array, battery component and preparation method thereof

Family Applications After (19)

Application Number Title Priority Date Filing Date
CN201510218697.4A Active CN106206816B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510221302.6A Pending CN106206819A (en) 2014-10-31 2015-04-30 Solaode chip arrays, solar module and preparation method thereof
CN201510219366.2A Active CN106206767B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510218563.2A Active CN106206815B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510218574.0A Pending CN106206763A (en) 2014-10-31 2015-04-30 Solar battery cell, cell piece array, battery component and preparation method thereof
CN201510219565.3A Pending CN106206769A (en) 2014-10-31 2015-04-30 Solar module and preparation method thereof
CN201510218535.0A Pending CN106206813A (en) 2014-10-31 2015-04-30 Solar battery cell, conductor wire, array, battery component and preparation method thereof
CN201510219353.5A Pending CN106206766A (en) 2014-10-31 2015-04-30 Solar battery cell, cell piece array, battery component and preparation method thereof
CN201510219378.5A Active CN106206768B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510217551.8A Active CN106206761B (en) 2014-10-31 2015-04-30 Solar cell chip arrays, solar cell module and preparation method thereof
CN201510217609.9A Active CN106206808B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510217617.3A Active CN106206810B (en) 2014-10-31 2015-04-30 Solar battery chip arrays, solar cell module and preparation method thereof
CN201510218489.4A Active CN106206812B (en) 2014-10-31 2015-04-30 Solar battery sheet, solar cell module and preparation method thereof
CN201510217573.4A Pending CN106206807A (en) 2014-10-31 2015-04-30 Solaode chip arrays, solar module and preparation method thereof
CN201510217616.9A Pending CN106206809A (en) 2014-10-31 2015-04-30 Solar module and preparation method thereof
CN201510219417.1A Active CN106206817B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510218635.3A Active CN106206764B (en) 2014-10-31 2015-04-30 Solar battery cell, battery chip arrays, battery component and preparation method thereof
CN201510217625.8A Active CN106206811B (en) 2014-10-31 2015-04-30 Solar cell module and preparation method thereof
CN201510219436.4A Pending CN106206834A (en) 2014-10-31 2015-04-30 The preparation method of solar module

Country Status (1)

Country Link
CN (23) CN106206818B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108093533B (en) * 2017-01-17 2019-09-13 陈青 The electric car of installing solar photovoltaic component
CN106784103A (en) * 2017-01-24 2017-05-31 泰州乐叶光伏科技有限公司 A kind of N-type double-side cell interconnection technology
CN106653913A (en) * 2017-01-24 2017-05-10 泰州乐叶光伏科技有限公司 Interconnection technology of N-type double-sided battery
CN106847968A (en) * 2017-02-17 2017-06-13 华东理工大学 A kind of method for packing of two-sided crystal silicon heterojunction dereliction grid solar cell piece
CN107086282B (en) * 2017-06-09 2024-05-07 广东保达动力技术有限公司 Secondary battery
WO2018235202A1 (en) * 2017-06-21 2018-12-27 三菱電機株式会社 Solar battery cell and solar battery module
CN107681008B (en) * 2017-09-20 2024-01-30 苏州宇邦新型材料股份有限公司 Photovoltaic module is with converging area
CN109802000A (en) * 2017-11-15 2019-05-24 阿特斯阳光电力集团有限公司 Photovoltaic welding belt, photovoltaic module and its manufacturing method
CN108010970A (en) * 2017-11-17 2018-05-08 南通苏民新能源科技有限公司 A kind of interdigital back contacts crystalline silicon solar battery electrode and preparation method thereof
CN108237353B (en) * 2018-01-05 2020-03-17 苏州德睿联自动化科技有限公司 End welding machine
CN108922934B (en) * 2018-08-03 2024-02-09 浙江爱旭太阳能科技有限公司 Double-sided direct-connection solar cell module and preparation method thereof
CN108987510B (en) * 2018-08-10 2024-06-14 广东爱旭科技股份有限公司 Grid-shaped single-sided direct-connection solar cell module and preparation method thereof
CN110178584A (en) * 2019-06-12 2019-08-30 江苏舜大新能源科技有限公司 A kind of intelligent flowerpot with solar battery
CN110277460A (en) * 2019-07-16 2019-09-24 无锡鼎森茂科技有限公司 Solar battery sheet and photovoltaic module
CN110518090A (en) * 2019-07-25 2019-11-29 苏州迈展自动化科技有限公司 A kind of preparation method and solar cell module of solar cell module
CN110828599A (en) * 2019-11-15 2020-02-21 常州时创能源科技有限公司 Weldable conductive belt for photovoltaic and application thereof
CN111200036A (en) * 2020-01-13 2020-05-26 任建丽 Arrangement mode of photovoltaic cells in crystalline silicon photovoltaic cell assembly
CN111403554A (en) * 2020-03-26 2020-07-10 中国科学院上海微系统与信息技术研究所 Preparation method of solar cell and solar cell obtained by preparation method
CN111640822B (en) * 2020-06-10 2022-01-04 蒙城县比太新能源发展有限公司 Crystalline silicon battery using copper wire as main grid and preparation method of assembly of crystalline silicon battery
CN111739969B (en) * 2020-07-22 2021-02-09 苏州迈展自动化科技有限公司 Photovoltaic module and series connection method thereof
CN114078983B (en) * 2020-08-10 2024-04-02 苏州阿特斯阳光电力科技有限公司 Photovoltaic module
CN112226169B (en) * 2020-09-25 2022-11-18 苏州赛伍应用技术股份有限公司 Solder strip carrier film, preparation method thereof, solder strip composite body and battery piece composite body
CN112531061A (en) * 2020-12-14 2021-03-19 宣城睿晖宣晟企业管理中心合伙企业(有限合伙) Solar cell module and manufacturing method thereof
CN113097325A (en) * 2021-03-26 2021-07-09 福斯特(嘉兴)新材料有限公司 Solar cell module
CN113097327A (en) * 2021-03-26 2021-07-09 福斯特(嘉兴)新材料有限公司 Grid line glue film and solar cell module
CN113257935B (en) * 2021-05-12 2022-07-08 常州时创能源股份有限公司 Series connection assembly for photovoltaic cell layer and preparation method and application thereof
CN113471362A (en) * 2021-05-18 2021-10-01 宣城先进光伏技术有限公司 Interconnection process method of perovskite battery
CN114497254A (en) * 2022-01-26 2022-05-13 福斯特(滁州)新材料有限公司 Latticed connection adhesive film for photovoltaic module and photovoltaic module
CN115241294B (en) * 2022-07-21 2024-05-17 常州时创能源股份有限公司 Photovoltaic shingle assembly and preparation method thereof
CN115172532A (en) * 2022-08-11 2022-10-11 东方日升新能源股份有限公司 Connection method of solar cell string and photovoltaic module
CN115483314A (en) * 2022-09-27 2022-12-16 常州时创能源股份有限公司 Solar cell welding method
CN115939253A (en) * 2022-11-21 2023-04-07 苏州迈展自动化科技有限公司 Photovoltaic solar cell module and preparation method thereof
CN115881854B (en) * 2023-03-03 2023-09-29 苏州小牛自动化设备有限公司 Device and method for manufacturing back contact battery string
CN117238985A (en) * 2023-11-16 2023-12-15 浙江晶科能源有限公司 Solar cell and photovoltaic module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090235979A1 (en) * 2008-03-20 2009-09-24 Mulugeta Zerfu Wudu Interconnect assembly
CN101919066A (en) * 2007-12-18 2010-12-15 达伊4能量有限公司 Photovoltaic module with edge access to pv strings, interconnection method, apparatus, and system
CN103367549A (en) * 2013-07-22 2013-10-23 山东力诺太阳能电力股份有限公司 Preparation method of patterned colored solar cell module

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380112A (en) * 1980-08-25 1983-04-19 Spire Corporation Front surface metallization and encapsulation of solar cells
DE3147255C2 (en) * 1981-11-28 1986-08-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for welding components using ultrasound, in particular solar cell contacts and solar cell connectors
CN85107080A (en) * 1985-09-23 1987-04-01 标准石油公司 Photovoltaic cell module
US6870087B1 (en) * 2001-09-14 2005-03-22 Patrick Gallagher Assembly method and apparatus for photovoltaic module
DE10239845C1 (en) * 2002-08-29 2003-12-24 Day4 Energy Inc Electrode for photovoltaic cells, photovoltaic cell and photovoltaic module
JP2005072567A (en) * 2003-08-01 2005-03-17 Nippon Sheet Glass Co Ltd Manufacturing method of solar cell module
JP2005277187A (en) * 2004-03-25 2005-10-06 Sharp Corp Solar battery module
TWI233323B (en) * 2004-04-22 2005-05-21 Phoenix Prec Technology Corp Circuit board with identifiable information and method for fabricating the same
JP5025135B2 (en) * 2006-01-24 2012-09-12 三洋電機株式会社 Photovoltaic module
JP5384004B2 (en) * 2007-03-19 2014-01-08 三洋電機株式会社 Solar cell module
CN100448035C (en) * 2007-07-12 2008-12-31 李毅 Ultrasonic soldering equipment for solar cell electrode
US20100000602A1 (en) * 2007-12-11 2010-01-07 Evergreen Solar, Inc. Photovoltaic Cell with Efficient Finger and Tab Layout
US20100043863A1 (en) * 2008-03-20 2010-02-25 Miasole Interconnect assembly
CN102282677A (en) * 2009-01-23 2011-12-14 株式会社爱发科 Method for manufacturing solar cell, and solar cell
CN101483199A (en) * 2009-02-23 2009-07-15 珈伟太阳能(武汉)有限公司 Electrode construction for enhancing photoelectric transforming efficiency of silicon solar cell
CN201546388U (en) * 2009-11-20 2010-08-11 大连森谷新能源电力技术有限公司 Constructional glass capable of utilizing solar energy to generate power
CN201773858U (en) * 2010-08-06 2011-03-23 李卫卫 Film laminating block for manufacturing positive electrode, positive electrode and solar battery
JP2012064729A (en) * 2010-09-15 2012-03-29 Fuji Electric Co Ltd Solar cell module and laminating method
US8956888B2 (en) * 2010-11-03 2015-02-17 Apollo Precision Fujian Limited Photovoltaic device and method and system for making photovoltaic device
CN102085597A (en) * 2010-11-23 2011-06-08 常州尖能光伏科技有限公司 Device and method for welding interconnector and bus bar of crystalline silicon solar panel
DE102011013928A1 (en) * 2011-03-14 2012-09-20 Schott Solar Ag Process for soldering solar cells
JP5838321B2 (en) * 2011-05-27 2016-01-06 パナソニックＩｐマネジメント株式会社 Manufacturing method of solar cell module
CN102891209A (en) * 2011-07-22 2013-01-23 无锡尚德太阳能电力有限公司 Solar cell as well as preparation method and device thereof
TW201308616A (en) * 2011-08-03 2013-02-16 Motech Ind Inc Method of forming conductive pattern on substrate
CN102983208B (en) * 2011-09-07 2017-07-28 索埃尔科技公司 Grid design for III V compound semiconductor cells
TWI463675B (en) * 2011-12-14 2014-12-01 Ind Tech Res Inst Package structure and solar cell with the same
WO2013106896A1 (en) * 2012-01-17 2013-07-25 Day4 Energy Inc. Photovoltaic module with cell assemblies bearing adhesive for securing the assemblies in the module
CN102569438B (en) * 2012-01-31 2014-03-05 乐山职业技术学院 Solar cell capable of saving silver paste and preparation process thereof
CN103489930B (en) * 2012-06-12 2018-02-06 晶元光电股份有限公司 Light-focusing type photoelectric cell
CN103531653B (en) * 2012-07-06 2016-02-10 茂迪股份有限公司 Back contact solar battery and manufacture method thereof
CN103137719A (en) * 2012-12-20 2013-06-05 杭州大和热磁电子有限公司 Novel solar energy battery piece
WO2014171708A1 (en) * 2013-04-15 2014-10-23 주식회사 엘지화학 Pattern forming method using trench structure, pattern formed by using same, solar cell production method using same, and solar cell formed by using same
CN103400869A (en) * 2013-06-27 2013-11-20 北京大学深圳研究生院 Solar battery and front-side electrode thereof
CN203351616U (en) * 2013-07-08 2013-12-18 宋祥 Optically focused type solar cell panel
CN203403594U (en) * 2013-07-10 2014-01-22 大连森谷新能源电力技术有限公司 Photovoltaic building glass
CN103406686A (en) * 2013-08-08 2013-11-27 江苏科技大学 Co-included Sn-Bi-based high-strength lead-free low-temperature welding flux
CN103794663B (en) * 2014-01-29 2016-09-28 常州天合光能有限公司 Electrode structure before solaode
CN103824894B (en) * 2014-03-10 2017-06-23 余小翠 Solar cell with reflector
CN104037265B (en) * 2014-06-18 2016-06-15 陕西众森电能科技有限公司 A kind of method of HIT solar cell and electrode preparation and series connection
CN204905273U (en) * 2015-04-30 2015-12-23 比亚迪股份有限公司 Solar cell unit, battery piece array, battery pack
CN204966514U (en) * 2015-04-30 2016-01-13 比亚迪股份有限公司 Solar cell unit, battery piece array, battery pack
CN204905263U (en) * 2015-04-30 2015-12-23 比亚迪股份有限公司 Solar wafer array, solar module
CN204946915U (en) * 2015-04-30 2016-01-06 比亚迪股份有限公司 Solar module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101919066A (en) * 2007-12-18 2010-12-15 达伊4能量有限公司 Photovoltaic module with edge access to pv strings, interconnection method, apparatus, and system
US20090235979A1 (en) * 2008-03-20 2009-09-24 Mulugeta Zerfu Wudu Interconnect assembly
CN103367549A (en) * 2013-07-22 2013-10-23 山东力诺太阳能电力股份有限公司 Preparation method of patterned colored solar cell module

Also Published As

Publication number Publication date
CN106206818B (en) 2019-01-29
CN106206812A (en) 2016-12-07
CN106206808A (en) 2016-12-07
CN106206767B (en) 2019-01-11
CN106206818A (en) 2016-12-07
CN106206764A (en) 2016-12-07
CN106206762A (en) 2016-12-07
CN106206813A (en) 2016-12-07
CN106206769A (en) 2016-12-07
CN106206815A (en) 2016-12-07
CN106206812B (en) 2018-02-09
CN106206768A (en) 2016-12-07
CN106206810A (en) 2016-12-07
CN106206764B (en) 2019-01-29
CN106206819A (en) 2016-12-07
CN106206766A (en) 2016-12-07
CN106206807A (en) 2016-12-07
CN106206763A (en) 2016-12-07
CN106206816B (en) 2019-04-19
CN106206814A (en) 2016-12-07
CN106206815B (en) 2019-01-29
CN106206834A (en) 2016-12-07
CN106206817B (en) 2018-08-14
CN106206816A (en) 2016-12-07
CN106206810B (en) 2019-01-29
CN106206765B (en) 2018-02-09
CN106206761A (en) 2016-12-07
CN106206768B (en) 2018-11-06
CN106206809A (en) 2016-12-07
CN106206761B (en) 2018-06-26
CN106206767A (en) 2016-12-07
CN106206811A (en) 2016-12-07
CN106206808B (en) 2018-06-26
CN106206762B (en) 2018-12-21
CN106206817A (en) 2016-12-07
CN106206811B (en) 2018-11-09

Similar Documents

Publication Publication Date Title
CN106206765A (en) Solaode chip arrays, solar module and preparation method thereof
CN204946915U (en) Solar module
CN204834636U (en) Solar wafer array, solar module
EP3198655A1 (en) Solar cell array, solar cell module and manufacturing method thereof
CN204905273U (en) Solar cell unit, battery piece array, battery pack
CN204885175U (en) Solar wafer array, solar module
CN204905263U (en) Solar wafer array, solar module
CN204966514U (en) Solar cell unit, battery piece array, battery pack
CN205004345U (en) Solar cell unit, battery piece array, battery pack
WO2016065931A1 (en) Solar cell array, solar cell module and manufacturing method thereof
WO2016065946A1 (en) Solar cell array, solar cell module and manufacturing method thereof
CN204857753U (en) Solar cell unit, solar cell piece array, solar cell subassembly
WO2016065934A1 (en) Solar cell module and manufacturing method thereof
WO2016065949A1 (en) Solar cell array, solar cell module and manufacturing method thereof
WO2016065945A1 (en) Solar cell array, solar cell module and manufacturing method thereof
WO2016065933A1 (en) Solar cell, solar cell module and manufacturing method thereof
WO2016065935A1 (en) Solar cell module and manufacturing method thereof
WO2016065953A1 (en) Solar cell module and manufacturing method thereof
WO2016065947A1 (en) Solar cell array, solar cell module and manufacturing method thereof
WO2016065936A1 (en) Method for manufacturing solar cell module

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant