CN103022201A - Crystal silicon solar battery module and manufacturing method thereof - Google Patents

Crystal silicon solar battery module and manufacturing method thereof Download PDF

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Publication number
CN103022201A
CN103022201A CN2011103049247A CN201110304924A CN103022201A CN 103022201 A CN103022201 A CN 103022201A CN 2011103049247 A CN2011103049247 A CN 2011103049247A CN 201110304924 A CN201110304924 A CN 201110304924A CN 103022201 A CN103022201 A CN 103022201A
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CN
China
Prior art keywords
crystal silicon
silicon solar
solar batteries
conductive strips
sheet
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CN2011103049247A
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Chinese (zh)
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穆敏芳
吴秋菊
王茂
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EIDP Inc
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EI Du Pont de Nemours and Co
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Priority to CN2011103049247A priority Critical patent/CN103022201A/en
Publication of CN103022201A publication Critical patent/CN103022201A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The application discloses a crystal silicon solar module and a method for manufacturing the same. The crystal silicon solar battery module comprises a crystal silicon solar battery piece and first and second conductive belts, wherein the crystal silicon solar battery piece is provided with front and rear surfaces which are opposite, one of the front and rear surfaces is a non-main grid wire surface, and the other one is a main grid wire surface or a non-main grid wire surface; and the first conductive belt is attached to the front surface of the crystal silicon solar battery piece in a way of being capable of collecting a current through conductive adhesive, and the second conductive belt is attached to the rear surface of the silicon solar battery piece in a way of being capable of collecting the current through the conductive adhesive. The method provided by the application can rapidly and efficiently manufacture the silicon solar battery module with low cost.

Description

Crystal silicon solar batteries module and manufacture method thereof
Technical field
The application relates to a kind of crystal silicon solar batteries module and makes the method for this crystal silicon solar batteries module.
Background technology
Solar cell has obtained fast development in recent years, and various solar cells have all been obtained remarkable progress aspect technology and commercial two.Adopt the solar battery sheet of inorganic absorbed layer material can be divided into block solar battery sheet and thin film solar cell sheet from structure.Block solar battery sheet mainly is monocrystalline silicon and polysilicon solar battery slice (below be referred to as the crystal silicon solar batteries sheet), and thickness is generally 100 to the hundreds of micron, and is rigidity.Thin film solar cell sheet comprises amorphous silicon membrane and compound semiconductor thin film solar cell sheet, and thickness is generally several microns even less, and is flexible.
Shown a kind of traditional crystal silicon solar batteries sheet among Fig. 1,2.As shown in the figure, the crystal silicon solar batteries sheet comprises: crystal silicon chip 1; Be formed on the many secondary grid lines 2 that are used for collected current parallel to each other and separate on the crystal silicon chip front surface; Front side main grid line 4, it traverses described secondary grid line 2 and is fixed on the front surface of crystal silicon chip 1 and with each secondary grid line 2 and is electrically connected, and front side main grid line and secondary grid line form the front side electrode of solar battery sheet together; Metal layer 8, it puts on the rear surface of crystal silicon chip 1; Rear side main grid line 4 ', it directly puts on the rear surface of crystal silicon chip 1 (not shown) or is applied on the metal layer 8 and (is shown in Fig. 2), and is electrically connected with metal layer, to form the back side electrodes of solar battery sheet.
Usually, utilize conductive strips (welding) 6 to realize the electrical connection of cell piece (electric energy output, the series connection between the cell piece etc.).Conductive strips 6 are forms of continuous strip, longitudinally have the first section (left part shown in Fig. 1) and the second section (the right side part shown in Fig. 1), the first section of conductive strips is fixed on the front side main grid line 4 of solar battery sheet as shown in Figure 1, and the second section of another conductive strips is fixed on the rear side main grid line 4 ' of solar battery sheet upper (can referring to Fig. 2).
Fig. 3-5 shows in the prior art process that conductive strips is fixed on the solar battery sheet.
At first, prepare solar battery sheet, it comprises crystal silicon chip 1 as shown in Figure 3, be positioned at secondary grid line (not shown) and front side main grid line 4 on the front surface of crystal silicon chip 1, be positioned at metal layer 8 and rear side main grid line 4 ' on the rear surface of crystal silicon chip 1.
Next, as shown in Figure 4, on the front surface of front side main grid line 4, can randomly apply scaling powder 10.
Next, as shown in Figure 5, the first section of conductive strips 6 is attached on the front side main grid line 4 that scribbles scaling powder 10, and utilize hot press instrument 12 that the first section of conductive strips 6 is exerted pressure towards front side main grid line 4, the first section and crystal silicon chip 1 to conductive strips 6 applies heat simultaneously, thereby the fusible metal layer fusing with conductive strips 6 surfaces welds together with the first section and front side main grid line 4 with conductive strips 6.
Next, although not shown, understand easily, utilize scaling powder that the second section of another conductive strips is welded to rear side main grid line on the solar battery sheet.In this way, can realize the electric energy output of solar battery sheet.In present industrial processes technique, conductive strips also can be welded on main grid line 4 and 4 ' with welding gun.
Usually, scaling powder is the mixture take rosin as main component, is the auxiliary material that guarantee that welding process is carried out smoothly.In actual applications, scaling powder also can be omitted.The fusible metal layer on conductive strips surface can be lower than 300 ℃ for having low-melting alloy, perhaps is lower than 200 ℃, such as Sn/Pb, Sn/Ag, Sn/Ag/Pb etc.But with respect to whole system, still need higher processing temperature (for example more than 200 ℃) to realize the welding between conductive strips and the main grid line.This higher processing temperature is at each part inside of cell piece and the at the interface generation stress between each part, and this stress might cause each part of solar battery sheet to occur breaking in welding process neutralization application process in the future, or the at the interface separation between each part.Processing temperature is higher, and the stress on the interface of conductive strips and cell piece is larger, and the possibility of battery failure is larger.
In welding material, plumbous application has reduced welding temperature to a great extent, has increased the easness of welding.Therefore, for the ease of welding, conductive strips commonly used contain lead usually at present, yet lead is not a kind of eco-friendly material.
Therefore, hope can solve the crystal silicon solar batteries sheet problem relevant with the electrical connection of conductive strips in the prior art.
Summary of the invention
The application's a purpose is to solve in the prior art by conductive strips and main grid wire bonding on the crystal silicon solar batteries sheet to connect the relevant issues that cause that are electrically connected between the realization crystal silicon solar batteries sheet.
An aspect according to the application provides a kind of crystal silicon solar batteries module, comprising:
The crystal silicon solar batteries sheet, it has reciprocal front and rear surfaces, and one in the described front and rear surfaces is dereliction grid line surface, and another in the described front and rear surfaces is band main grid line surface or dereliction grid line surface; And
The first and second conductive strips, wherein, the first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current, and the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet in mode that can collected current by means of conducting resinl.
According to the application, at least one in the front and rear surfaces of cell piece is dereliction grid line surface, this from prior art in front and rear surfaces all significantly different with the crystal silicon solar batteries sheet of main grid line.
Preferably, the front and rear surfaces of cell piece all is dereliction grid line surface, and such crystal silicon solar batteries sheet can be described as the crystal silicon solar batteries sheet of dereliction grid line type.
According to the application's preferred implementation, the front surface of described crystal silicon solar batteries sheet is formed with many secondary grid lines that are used for collected current parallel to each other and that separate, and the first conductive strips traverse these secondary grid lines and are electrically connected with their foundation.
According to the application's preferred implementation, the front surface of described crystal silicon solar batteries sheet is dereliction grid line surface, and the first conductive strips directly are electrically connected with described many secondary grid lines by described conducting resinl.
According to the application's preferred implementation, the rear surface of described crystal silicon solar batteries sheet is the dereliction grid line surface that is formed by metal layer, and the second conductive strips directly are electrically connected with described metal layer by described conducting resinl.
According to the application's preferred implementation, described conducting resinl comprises polymer and is scattered in conductive particle or other electric conducting materials of at least 0.1% weight in the polymer.
According to the application's preferred implementation, described polymer is selected from or arbitrarily a plurality of combination in following a group: acrylate, polyethylene and ethylene copolymers, epoxy resin, silicones.
According to the application's preferred implementation, described conductive particle consists of by being selected from following one group one or any multiple material: gold, silver, nickel, copper, aluminium, zinc, tin, carbon nano-tube, Graphene.
According to another preferred implementation of the application, described conducting resinl comprises conducting polymer composite.Described conducting polymer composite can comprise, but be not limited to polyacetylene class conducting polymer composite, polythiophene class conducting polymer composite, polypyrrole class conducting polymer composite, polyaniline compound conducting polymer composite and the arbitrarily combination etc. of two or more thereof.
According to the application's preferred implementation, described metal layer is the aluminium paste sinter layer.
According to the application's preferred implementation, described the first and second conductive strips are made of copper.
According to the application's preferred implementation, described crystal silicon solar batteries module comprises that at least two crystal silicon solar batteries sheets and at least one comprise the public conductive strips of the first section and the second section; Wherein, for two crystal silicon solar batteries sheets adjacent one another are, the first section of described at least one public conductive strips is used as being attached at the first conductive strips of the front surface of first crystal silicon solar batteries sheet, and the second section of described at least one public conductive strips is used as being attached at the second conductive strips of the rear surface of second crystal silicon solar batteries sheet.
Preferred implementation according to the application, the first surface of the first section of described at least one public conductive strips is attached at the front surface of first crystal silicon solar batteries sheet, and the opposite second surface of the second section of described at least one public conductive strips is attached at the rear surface of second crystal silicon solar batteries sheet.
According to the application's preferred implementation, the first section of same public conductive strips and the second section are continuous and roughly isometric each other, and perhaps the second section is slightly short.
According to the application's preferred implementation, realize that the quantity of the public conductive strips that are electrically connected between certain crystal silicon solar batteries sheet and the adjacent crystal silicon solar batteries sheet is at least one, for example two or more.
Preferred implementation according to the application, for each crystal silicon solar batteries sheet, the first section that is attached to public conductive strips on its crystal silicon chip front surface aligns each other with the second section that is attached to another the public conductive strips on its metal layer rear surface.
According to the application's preferred implementation, each crystal silicon solar batteries sheet is coplanar arranging roughly.
According to the application's preferred implementation, described crystal silicon solar batteries module also comprises: front encapsulated layer, and it covers the front surface of each crystal silicon solar batteries sheet; And rear encapsulated layer, it covers the rear surface of each crystal silicon solar batteries sheet.Described crystal silicon solar batteries module also can further comprise; Header board, it covers on the front surface of described front encapsulated layer; And backboard, it covers on the rear surface of described rear encapsulated layer.
According to the application's preferred implementation, described header board is glass plate.
According to the application's preferred implementation, described front encapsulated layer and rear encapsulated layer are made of EVA respectively.
According to the application on the other hand, a kind of method of making the crystal silicon solar batteries module is provided, comprise the steps: to provide the crystal silicon solar batteries sheet, described crystal silicon solar batteries sheet has reciprocal front and rear surfaces, one in the described front and rear surfaces is dereliction grid line surface, and another in the described front and rear surfaces is band main grid line surface or dereliction grid line surface; Conducting resinl and the first and second conductive strips are provided; And at crystal silicon solar batteries sheet connection the first and second conductive strips, wherein the first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current, the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current.
According to the application's preferred implementation, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises: the front surface that conducting resinl is put on the crystal silicon solar batteries sheet with the form of the first conductive adhesive tape; Conducting resinl is put on the rear surface of crystal silicon solar batteries sheet with the form of the second conductive adhesive tape; And the first conductive strips are attached at the first conductive adhesive tape on the crystal silicon solar batteries sheet, and the second conductive strips are attached at the second conductive adhesive tape on the crystal silicon solar batteries sheet.
According to the application's another kind of preferred implementation, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises: conducting resinl is put on the first conductive strips and the second conductive strips; And the first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
According to the application's preferred implementation, the step that conducting resinl is put on the first conductive strips and the second conductive strips comprises: sheet of conductor material is provided; Conducting resinl is provided and it is put on sheet of conductor material; And cut described sheet of conductor material to produce the first and second conductive strips.
According to the application's preferred implementation, provide the step of conducting resinl and the first and second conductive strips to comprise: sheet of conductor material is provided, and it has the first and second intervals; Conducting resinl is provided and it is put on the first surface in the first interval of sheet of conductor material and the opposite second surface between Second Region; And cutting described sheet of conductor material producing the first and second conductive strips, the first and second conductive strips longitudinally have respectively respectively the first and second interval the first section and the second sections that form by described sheet of conductor material; And, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises: the first section of the first conductive strips is attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second section of the second conductive strips is attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
According to the application's another kind of preferred implementation, provide the step of conducting resinl and the first and second conductive strips to comprise: sheet of conductor material is provided, and it has the first and second opposite surfaces; Conducting resinl is provided and it is put on the first surface of sheet of conductor material and opposite second surface; And cutting described sheet of conductor material to produce the first and second conductive strips, the tow sides of the first and second conductive strips all scribble conducting resinl; And, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises: the first section of the first conductive strips is attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second section of the second conductive strips is attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
Preferred implementation according to the application, provide the step of crystal silicon solar batteries sheet to comprise at least two crystal silicon solar batteries sheets are provided, wherein, for two crystal silicon solar batteries sheets adjacent one another are, public conductive strips are used for both the first conductive strips that are attached at first crystal silicon solar batteries sheet and the second conductive strips that are attached at second crystal silicon solar batteries sheet.
Preferred implementation according to the application, described public conductive strips have vertical the first and second sections, the first surface of the first section is suitable for being attached at the front surface of first crystal silicon solar batteries sheet, and the opposite second surface of the second section is suitable for being attached at the rear surface of second crystal silicon solar batteries sheet.
Preferred implementation according to the application, the method of described manufacturing crystal silicon solar batteries module also comprises: after the crystal silicon solar batteries sheet has been connected the first and second conductive strips, front encapsulated layer and rear encapsulated layer are applied to respectively on the front surface and rear surface of crystal silicon solar batteries sheet; Then header board and backboard are applied to respectively on described front encapsulated layer and the rear encapsulated layer.
According to the application, a kind of electric connection mode of new crystal silicon solar batteries is provided, thereby so that main grid line of the prior art is cancelled by cancel all or part, be used for to realize that conductive strips that the crystal silicon solar batteries sheet is electrically connected are combined in secondary grid line and/or the metal layer on the front and rear surfaces of cell piece by means of conducting resinl.Therefore, needn't as prior art, utilize the high temperature hot pressing joining tool to realize welding (>200 ℃) between conductive strips and the main grid line fully.Simultaneously, the relative metal system of polymeric system has lower yang type modulus and lower processing temperature, can greatly reduce in conductive strips and the cell piece bonding process producing thermal stress, breaking of cell piece and separating of conductive strips and cell piece occur like that thereby reduce in the prior art.
In addition, the common main grid line of being made by gold or silver is by all or part of cancellation in the prior art, and therefore the cost of whole cell piece can reduce.
In addition, owing to cancelled welding step, so conductive strips needn't use and help the lead-containing materials that welds, therefore, can avoid environment is caused lead contamination.Simultaneously, the cancellation of welding step causes the series connection between the crystal silicon solar batteries sheet to finish fast and efficiently.
In addition, by the design to polymeric system in the conducting resinl, the bonding force between conductive strips and the battery can improve greatly.
According to the application, the rear side main grid line of cell backside also can omit.Metal layer on back can cover the whole back side.
It may be noted that the application is applicable to the crystal silicon solar batteries sheet.Because the crystal silicon solar batteries sheet is obviously different from thin film solar cell sheet in essential structure, therefore, all or part of main grid line of the relevant cancellation that discloses among the application and technological thought and the every details of directly utilizing conducting resinl to realize that the crystal silicon solar batteries sheet is electrically connected might not can be used in thin film solar cell sheet.Conversely, the correlation technique of field of thin film solar cells, the dereliction grid line thin film solar cell sheet that proposes of someone for example, and be not easy to be applied to the crystal silicon solar batteries sheet, therefore can not be so that the application's technology be apparent.
Description of drawings
The application's preferred implementation is described below with reference to accompanying drawings, in the accompanying drawings:
Fig. 1 is the schematic plan of a kind of crystal silicon solar batteries sheet of prior art when being applied in conductive strips;
Fig. 2 is that the crystal silicon solar batteries sheet among Fig. 1 has been applied in the schematic side sectional view behind the conductive strips;
Fig. 3-the 5th, the crystal silicon solar batteries sheet among Fig. 1 is applied in the schematic side sectional view of the process of conductive strips;
Fig. 6 is the schematic plan of the crystal silicon solar batteries sheet according to the application's a preferred implementation when being applied in conductive strips;
Fig. 7 is that the crystal silicon solar batteries sheet among Fig. 6 has been applied in the schematic side sectional view behind the conductive strips;
Fig. 8 is the schematic diagram when a plurality of crystal silicon solar batteries sheets are together in series;
Fig. 9 is the schematic diagram according to the crystal silicon solar batteries module of the application's a preferred implementation.
Embodiment
The application's various preferred implementations are described with reference to the accompanying drawings.
Crystal silicon solar batteries sheet according to the application's a preferred implementation has been shown among Fig. 6,7, and it is monocrystalline silicon or polysilicon solar battery slice, comprising: crystal silicon chip 1; Be formed on the many secondary grid lines 2 (being shown in Fig. 6) that are used for collected current parallel to each other and separate on the front surface of crystal silicon chip 1; And the metal layer 8 (being shown in Fig. 7) that covers the rear surface of crystal silicon chip 1.
According to the application's preferred implementation, at least one in the front and rear surfaces of crystal silicon chip 1 do not arrange the main grid line as prior art.In other words, have at least one to be dereliction grid line surface in the front and rear surfaces.
According to a kind of preferred implementation of the application, the front surface of crystal silicon chip 1 is dereliction grid line surface, and each the secondary grid line that is positioned on the front surface of crystal silicon chip 1 is separated from each other, and does not utilize front side main grid line that they are electrically connected to each other as in the prior art.Simultaneously, the rear surface of crystal silicon chip 1 also is dereliction grid line surface, and rear side main grid line is not set in the rear surface of crystal silicon chip 1 as in the prior art.
According to the application's another kind of preferred implementation, crystal silicon chip 1 front surface is dereliction grid line surface, but the rear surface of crystal silicon chip 1 is the surface (band main grid line surface) that is provided with the main grid line.
According to the application's another kind of preferred implementation, crystal silicon chip 1 front surface is the surface (band main grid line surface) that is provided with the main grid line, but the rear surface of crystal silicon chip 1 is dereliction grid line surface.
The application adopts conductive strips 6 to realize the electrical connection of cell piece (electric energy of output cell piece, the series connection between the realization cell piece etc.), has shown the conductive strips 6 that are attached at cell piece 1 front side among Fig. 6.
As shown in Figure 7, conductive strips 6 are to be bonded on the front and rear surfaces of cell piece 1 by means of conductive adhesive layer 20.
In example shown in Figure 7, be respectively equipped with two conductive strips 6 on the upper and lower surface of cell piece.Yet, the conductive strips of other quantity, for example one or more than two also is feasible.
A plurality of cell pieces are being cascaded to improve in the situation of output voltage and power, are realizing series connection by conductive strips 6 between the adjacent cell piece.
Conductive strips 6 are forms of continuous strip, longitudinally have the first section (left part shown in Fig. 6) and the second section (the right side part shown in Fig. 6).The first section of the first conductive strips traverses the front side that each secondary grid line 2 is fixed on cell piece as shown in Figure 6, namely be attached on the front surface of crystal silicon chip 1, the second section of the second conductive strips (not shown among Fig. 6) is fixed on the rear side (can referring to Fig. 7) of cell piece.
For the dereliction grid line surface of cell piece, conductive strips directly are attached on secondary grid line 2 or the metal layer 8 by conducting resinl, and are electrically connected with its direct foundation.For the band main grid line surface of cell piece, conductive strips are attached on the main grid line by conducting resinl, and are electrically connected with secondary grid line 2 or metal layer 8 foundation by the main grid line.
The situation of a plurality of cell piece series connection as shown in Figure 8.In Fig. 8, take that cell piece 1 of centre as example, first (afterwards) surface label of the first section of the first conductive strips 6 invests the front surface of cell piece 1, and second (front) surface label of the second section of the first conductive strips 6 invests the rear surface of a rear cell piece (that cell piece on right side).Second (front) surface label of the second section of the second conductive strips 6 invests the rear surface of cell piece 1, and first (afterwards) surface label of the first section of the second conductive strips 6 invests the front surface of previous cell piece (that cell piece in left side).
In this way, a plurality of cell pieces are cascaded by corresponding conductive strips as shown in Figure 8 and form a cell piece group.
The described metal layer 8 preferred aluminium paste sinter layers that adopt also can be the layers of other appropriate materials.
Described conductive strips 6 are preferably made of copper, and also can adopt other suitable electric conducting material to make, such as aluminium strip, and silver-plated copper strips, the surface scribbles the copper strips of Sn/Ag/Pd or Sn/Pd thin layer.
According to the application's a preferred implementation, the used conducting resinl material of conductive adhesive layer comprises conducting polymer composite.
Described conducting polymer composite can include, but not limited to polyacetylene class conducting polymer composite, polythiophene class conducting polymer composite, polypyrrole class conducting polymer composite, polyaniline compound conducting polymer composite etc.
According to another preferred implementation of the application, the used conducting resinl material of conductive adhesive layer comprises polymer and is arranged in the conductive particle of polymer.The weight of conductive particle or other electric conducting materials be conductive adhesive layer 20 weight at least 0.1%.
Described polymer preferably adopts ethylene copolymer or epoxy resin, also can adopt the polymer of other suitable type, comprises thermoplasticity and thermosetting polymer.Thermoplastic polymer such as acrylic copolymer, polyamide etc.; Thermosetting polymer such as polyurethane, phenolic resins, organic silicone polymer etc.
Described conductive particle is by gold, silver, nickel, copper, aluminium, zinc, tin, carbon nano-tube, and the material of the good conductivity such as Graphene consists of.
A preferred implementation according to the application, the conductive adhesive layer of described conductive strips is to be that the conducting resinl that contains conductive particle of macromolecule matrix is made by acrylate, for example, can be available from the Electrically Conductive Adhesive Transfer Tape of Strip TinningAutomotive company.
After the front and rear surfaces of a cell piece has all been attached conductive strips, or after utilizing as shown in Figure 8 conductive strips that a plurality of cell pieces are connected into the cell piece group, as shown in Figure 9, front encapsulated layer 22 and rear encapsulated layer 26 are applied to respectively on the front surface and rear surface of cell piece or cell piece group; Then header board 24 and backboard 28 are applied to respectively on described front encapsulated layer 22 and the rear encapsulated layer 26, like this, have just formed a crystal silicon solar batteries module, wherein comprise one or more cell piece.For the situation that comprises a plurality of cell pieces in the crystal silicon solar batteries module, each cell piece can be by matrix form co-planar arrangement roughly.It is intelligible that this point is that those skilled in the art hold.
Described header board 24 can be made of transparent glass plate, polymer sheet etc., such as perfluoroethylene-propylene (FEP), polyvinyl fluoride (ETFE) etc., in order to light transmission and required hardness are provided.Described backboard 28 can be made of composite membrane of glass, polymer, metal and metal and polymer etc.
Described front encapsulated layer 22 and rear encapsulated layer 26 can be respectively by formations such as polyvinyl acetate (EVA), polyvinyl butyral resin (PVB) and ionic copolymers.
According to the application's a preferred implementation, conducting resinl is applied on the conductive strips, is with conductive strips are applied on the cell piece by conducting resinl again.Conductive strips are formed by Copper Foil (sheet of conductor material) cutting usually.Therefore, be applied to situation on the conductive strips for conducting resinl, can apply conducting resinl by the Copper Foil (sheet of conductor material) before cutting, also can apply conducting resinl at the conductive strips that cut out.
It may be noted that, conductive strips are suitable for the rear surface that is attached at the front surface of cell piece at the first surface of its vertical the first section, is attached at cell piece at the opposite second surface of its vertical the second section, therefore, only need guarantee to exist conducting resinl to get final product on the second surface of the first surface of the first section of conductive strips and the second section.
Apply conducting resinl such as the Copper Foil (sheet of conductor material) of need before cutting, Copper Foil has the first and second intervals that produce conductive strips the first and second sections for by cutting, only need guarantee that applying conducting resinl on the first surface in the first interval of Copper Foil and the opposite second surface between Second Region gets final product.
Yet, for technologic factor, conducting resinl may also can be applied to other position of Copper Foil (sheet of conductor material) or conductive strips, for example is applied on its two complete surfaces (for example the mode by dip-coating applies conducting resinl), and the application's scope has contained these variations.
Another preferred implementation according to the application, the expection that conducting resinl can be applied on the application's the cell piece attaches on the position of conductive strips, thereby form conductive adhesive tape at cell piece, wherein, be coated on each secondary grid line that the first conductive adhesive tape on the cell piece front surface traverses cell piece, thereby directly or by the main grid line be electrically connected with each secondary grid line, the second conductive adhesive tape that is coated on the cell piece rear surface directly or by the foundation of main grid line is electrically connected with the metal layer of cell piece.And then conductive strips are attached on the conductive adhesive tape.
According to the application, because conductive strips are bonded on the cell piece by means of conductive adhesive layer, and all or part of front side main grid line and the rear side main grid line of usually being made by gold or the silver of costliness in the prior art of having cancelled, therefore according to the application's cell piece and crystal silicon solar batteries module cost can reduce.
In addition, because Young's modulus and the processing temperature of conducting resinl is all lower, thereby needn't as prior art, utilize the high temperature hot pressing joining tool to realize welding between conductive strips and the main grid line.Therefore, can completely or partially avoid producing thermal stress in the crystal-silicon battery slice, thereby can as in the prior art, not occur breaking and separate.
In addition, owing to completely or partially cancelled welding step, so conductive strips needn't use the lead-containing materials of being convenient to weld, and therefore, can completely or partially avoid environment is caused lead contamination.
In addition, the wholly or in part cancellation of welding step can cause the manufacture process of crystal silicon solar batteries module to be simplified.
Comparative Examples and embodiment
The below introduces the embodiment of manufacture method of the exemplary crystal silicon solar batteries module that adopts among the application and relevant Comparative Examples.
Some materials that adopt in paper embodiment that the application is and the Comparative Examples.
The toughened glass that glass front plate: 3.2mm is thick is available from Chinese Dongguan Nanbo Solar Energy Glass Co., Ltd.;
EVA film: Revax TM767 (auspicious good fortune 767) ethylene vinyl acetate (EVA) film (500 μ m are thick) derives from Chinese Wenzhou auspicious sunlight volt Materials Co., Ltd;
The TPT backboard: PTL 3HR 1000V backboard is purchased from Krempel Group;
Cell piece: 5 inches blank cell pieces (electrodeless) of mono-crystalline silicon solar are purchased from the holding Co., Ltd of brilliant Australia solar energy;
Front silver (being used to form front side main grid line and secondary grid line):
Figure BSA00000588245000112
PV16A silver slurry is purchased from U.S. E.I.Du Pont De Nemours and Co. (E.I.du Pont de Nemours and Company, the below is called for short " Du Pont ") for front silver;
Back of the body silver (being used to form rear side main grid line):
Figure BSA00000588245000121
PV505 silver slurry is purchased from Du Pont for back of the body silver;
Aluminium paste:
Figure BSA00000588245000122
The PV35C aluminium paste is purchased from Du Pont;
Welding: the P-XAP welding is purchased from Wuxi City Southwick Science and Technology Ltd..
The below introduces the application's each embodiment and Comparative Examples in detail.
Comparative Examples 1
Used crystal silicon solar batteries sheet has four main grid lines in the Comparative Examples 1, each two of crystal silicon battery front and back, and it is prepared as follows.At first, the back side electrodes of printing cells.As back side main grid line, lower dry at 300 ℃ at cell piece back side printing back of the body silver.Then, printing aluminium paste to cell backside covers other zones except the main grid line, and is same dry.Then front silver is printed main grid line and secondary grid line, drying simultaneously at the front surface of cell piece.At last, with the cell piece that prints at 890 ℃ of lower sintering.
The monolithic crystal silicon solar batteries module of Comparative Examples 1 is prepared as follows.At first, respectively with welding gun with four root bead bands on four the main grid lines in the front and back that are welded on cell piece under 310 ℃, realize to be electrically connected.Next, front side and the rear side at the cell piece that connects of being electrically connected covers front encapsulated layer and the rear encapsulated layer that the EVA film consists of.Next, at front encapsulated layer and rear encapsulated layer difference cover glass header board and TPT backboard.At last, use Meier Vakuumtechnick GMBG compounding machine, under 1atm, 145 ℃, made this structure for vacuum compound 15 minutes, finally form monolithic crystal silicon solar batteries module.The power that records battery module at SIM 3500SLP solar simulator (being purchased from Spire Corporation) is 2.32 watts.
Comparative Examples 2
Crystal silicon solar batteries sheet used in the Comparative Examples 2 does not contain the main grid line, only has secondary grid line and back of the body aluminium, and it is prepared as follows.At first, the printing aluminium paste also covers the whole crystal silicon battery back side, and is lower dry at 300 ℃.Then front filigree is printed secondary grid line to the cell piece front surface, and dry.Secondary grid line runs through whole cell piece.At last, with the cell piece that prints at 890 ℃ of lower sintering.
The monolithic crystal silicon solar batteries module of Comparative Examples 2 is prepared as follows.With welding gun four root bead bands are welded on respectively at first, respectively the front and rear surfaces of cell piece under 280 ℃.Wherein, two root bead bands of front run through all secondary grid lines.Next, front side and the rear side at the good cell piece of welding covers front encapsulated layer and the rear encapsulated layer that the EVA film consists of.Next, at front encapsulated layer and rear encapsulated layer difference cover glass header board and TPT backboard.At last, be prepared into monolithic crystal silicon solar batteries module such as Comparative Examples 1.The power that records battery module at as above solar simulator is 0 watt.
Embodiment 1
The crystal silicon solar batteries sheet that embodiment 1 is used and the cell piece of Comparative Examples 2 have same structure, are made by identical method.The monolithic crystal silicon solar batteries module of embodiment 1 is prepared as follows.
At first, be 2~8 microns silver-colored particle with the particle diameter of 78wt% and mix under 90~100 ℃ temperature as the EVA that the tert-butyl hydroperoxide carbonic acid available from the commodity LQ-TBEC by name of Lanzhou of China auxiliary reagent factory of the 0.5wt% of crosslinking agent-2-Octyl Nitrite (Tert-Butyl peroxy 2-ethylhexyl carbonate) and the commodity that derive from U.S. Na Muer Du Pont public (E.I.du Pont de Nemours and Company) are called PV 1650 and to make the conducting resinl material in about 10 minutes.
Then, the conducting resinl that the produces temperature at 100 ℃ is hot-pressed onto on the Copper Foil of 105 micron thickness, thereby conducting resinl forms the film of 100 micron thickness and is combined with copper foil layer.
Next, the composite sheet that so forms is cut into the conductive strips of 2 millimeters width.
Next, these conductive strips are attached on the application's the front side and rear side aluminium paste sinter layer of the cell piece with previous constructions, the conductive strips of front surface are connected with secondary grid line, thereby realize the electrical connection of cell piece.Specifically, conductive strips are attached at a cell piece front side surface by means of conducting resinl, and this section traverses each the secondary grid line on this cell piece and sets up with each secondary grid line and directly is electrically connected; Another conductive strips are attached at the rear side aluminium paste sinter layer (metal layer) of this cell piece and are electrically connected with its foundation.
Next, front side and the rear side at the cell piece that connects of being electrically connected covers front encapsulated layer and the rear encapsulated layer that the EVA film consists of.
Next, at front encapsulated layer and rear encapsulated layer difference cover glass header board and TPT backboard.After this, use Meier Vakuumtechnick GMBG compounding machine, under 1atm, 145 ℃, made this five-layer structure vacuum compound 15 minutes, form final monolithic crystal silicon solar batteries module.The power that records battery module at solar simulator is 2.29 watts.
Embodiment 2
The crystal silicon solar batteries sheet that embodiment 2 is used and the cell piece of Comparative Examples 2 have same structure, are made by identical method.The monolithic crystal silicon solar batteries module of embodiment 2 is prepared as follows.At first, adopt available from (the Henkel AG ﹠amp of Henkel AG ﹠ Co KGaA; Co.KGaA) trade name Emerson ﹠amp; Cuming TMCE 3013WLV epoxy conducting as the conducting resinl material.
Then, this conducting resinl is applied on the Copper Foil as 2 mm wides of conductive strips.
Next, the mode that is similar to front embodiment 1 description attaches to these conductive strips on the application's the cell piece with previous constructions, thereby realizes the electrical connection of cell piece.
Next, encapsulated layer and header board and backboard before and after covering as embodiment 1 on the cell piece that connects that is electrically connected have so just been finished whole crystal silicon solar batteries module.In this crystal silicon solar batteries module, the power that records battery module is 2.31 watts.
Comparative Examples 3
Used crystal silicon solar batteries sheet has two front side main grid lines in the Comparative Examples 3, does not have rear side main grid line, and it is prepared as follows.At first, the back side electrodes of printing cells.As back side electrodes, lower dry at 300 ℃ at cell piece back side printing back of the body aluminium.Back of the body aluminium covers the whole cell piece back side.Then front filigree is printed main grid line and secondary grid line to cell piece front surface, drying.At last, with the cell piece that prints at 890 ℃ of lower sintering.
Comparative Examples 3 monolithic crystal silicon solar batteries modules are prepared as follows.At first, with welding gun with two root bead bands on two main grid lines of the front that is welded on battery under 280 ℃, simultaneously, with other two root bead weldings in the back on the aluminium paste of sintering.Next, front side and the rear side at the good cell piece of welding covers front encapsulated layer and the rear encapsulated layer that the EVA film consists of.Next, at front encapsulated layer and rear encapsulated layer difference cover glass header board and TPT backboard.At last, be prepared into monolithic crystal silicon solar batteries module such as Comparative Examples 1.The power that records battery module at solar simulator is 0 watt.
Embodiment 3
Embodiment 3 used crystal silicon solar batteries sheet and Comparative Examples 3 cell pieces have same structure, are made by identical method.The preparation of the monolithic crystal silicon solar batteries module of embodiment 3 is identical with embodiment 1, is affixed on the front surface main grid line of crystal silicon battery except the conductive tape of front surface rather than runs through secondary grid line.The power that the final monolithic crystal silicon solar batteries module that forms records is 2.28 watts.
Comparative Examples 4
Used crystal silicon solar batteries sheet has two rear side main grid lines in the Comparative Examples 4, does not have front side main grid line, and it is prepared as follows.At first, the back side electrodes of printing cells.As back side main grid line, lower dry at 300 ℃ at cell piece back side printing back of the body silver.Then, printing aluminium paste to cell backside covers other zones except the main grid line, and is same dry.Then front filigree is printed secondary grid line to cell piece front surface, drying.Secondary grid line runs through whole cell piece.At last, with the cell piece that prints at 890 ℃ of lower sintering
It is prepared as follows the monolithic crystal silicon solar batteries module of Comparative Examples 4.At first, with welding gun two root bead bands are welded on respectively the front of battery under 280 ℃, run through secondary grid line.Simultaneously, with other two root bead weldings on the two main grid lines in crystal silicon battery back.Next, front side and the rear side at the good cell piece of welding covers front encapsulated layer and the rear encapsulated layer that the EVA film consists of.Next, at front encapsulated layer and rear encapsulated layer difference cover glass header board and TPT backboard.At last, be prepared into monolithic crystal silicon solar batteries module such as Comparative Examples 1.The power that records battery module at solar simulator is 2.04 watts.
Embodiment 4
Embodiment 4 used crystal silicon solar batteries sheet and Comparative Examples 4 cell pieces have same structure, are made by identical method.The preparation of the monolithic crystal silicon solar batteries module of embodiment 4 is identical with embodiment 1, except the conductive strips at the back side are affixed on the back side main grid line of crystal silicon battery.The power that the final monolithic crystal silicon solar batteries module that forms records is 2.33 watts.
Above-described Comparative Examples 1 is corresponding to prior art, and wherein, the front and rear surfaces of cell piece all has the main grid line, and welding is soldered on the main grid line.Therefore, there is the defective of discussing in the background technology part of front in the Comparative Examples 1.
The front and rear surfaces of the cell piece of Comparative Examples 2 is not with the main grid line, and welding is welded direct on the cell piece.In this case, the electric energy of battery can't be exported.
Be similar to the cell piece of Comparative Examples 2, the front and rear surfaces of the cell piece of embodiment 1, embodiment 2 is not with the main grid line, but conductive strips are connected on the cell piece by conducting resinl, the electric energy of the battery among these two embodiment can be exported effectively, and the prior art in the power of battery module and the Comparative Examples 1 is suitable.
The cell piece of Comparative Examples 3 has front side main grid line, but does not have rear side main grid line, and welding is welded on the cell piece.In this case, the electric energy of battery can't be exported.
Be similar to the cell piece of Comparative Examples 3, the cell piece of embodiment 3 also has front side main grid line, but do not have rear side main grid line, conductive strips are connected on the front side main grid line and back of the body aluminium of cell piece by conducting resinl, the electric energy of battery can be exported effectively, and the prior art in the power of battery module and the Comparative Examples 1 is suitable.
The cell piece of Comparative Examples 4 has rear side main grid line, but does not have front side main grid line, and welding is welded on the cell piece.In this case, the electric energy of battery fails all to export.
Be similar to the cell piece of Comparative Examples 4, the cell piece of embodiment 4 also has rear side main grid line, but do not have front side main grid line, conductive strips are connected on the front surface and rear side main grid line of cell piece by conducting resinl, the electric energy of battery can be exported effectively, and the prior art in the power of battery module and the Comparative Examples 1 is suitable.
This shows that the application has been by having cancelled whole or in part the main grid line of crystal silicon solar batteries sheet, thereby eliminate or alleviated the variety of problems that exists in the prior art, can obtain again the electric energy output suitable with prior art simultaneously.
Although the front shows for preferred implementation and has described the application, it will be understood by those skilled in the art that under the prerequisite that does not break away from the application's scope that limits in claims, can make a variety of changes and revise.

Claims (35)

1. crystal silicon solar batteries module comprises:
The crystal silicon solar batteries sheet, it has reciprocal front and rear surfaces, and one in the described front and rear surfaces is dereliction grid line surface, and another in the described front and rear surfaces is band main grid line surface or dereliction grid line surface; And
The first and second conductive strips, wherein, the first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current, and the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet in mode that can collected current by means of conducting resinl.
2. crystal silicon solar batteries module as claimed in claim 1, wherein, the front surface of described crystal silicon solar batteries sheet is formed with many secondary grid lines that are used for collected current parallel to each other and that separate, and the first conductive strips traverse these secondary grid lines and are electrically connected with their foundation.
3. crystal silicon solar batteries module as claimed in claim 2, wherein, the front surface of described crystal silicon solar batteries sheet is dereliction grid line surface, the first conductive strips directly are electrically connected with described many secondary grid lines by described conducting resinl.
4. such as each described crystal silicon solar batteries module in the claims 1 to 3, wherein, the rear surface of described crystal silicon solar batteries sheet is the dereliction grid line surface that is formed by metal layer, and the second conductive strips directly are electrically connected with described metal layer by described conducting resinl.
5. such as each described crystal silicon solar batteries module in the claim 1 to 4, wherein, described conducting resinl comprises polymer and is scattered in the conductive particle of at least 0.1% weight in the polymer.
6. crystal silicon solar batteries module as claimed in claim 5, wherein, described polymer is selected from a kind of or arbitrarily multiple combination in following a group: acrylate, polyethylene and ethylene copolymers, epoxy resin and silicones.
7. such as claim 5 or 6 described crystal silicon solar batteries modules, wherein, described conductive particle is by being selected from following one group a kind of or arbitrarily multiple constituting: gold, silver, nickel, copper, aluminium, zinc, tin, carbon nano-tube, Graphene.
8. such as each described crystal silicon solar batteries module in the claim 1 to 4, wherein, described conducting resinl comprises conducting polymer composite.
9. crystal silicon solar batteries module as claimed in claim 8, wherein, described conducting polymer composite is selected from: polyacetylene class conducting polymer composite, the polythiophene class conducting polymer composite, polypyrrole class conducting polymer composite, polyaniline compound conducting polymer composite and above arbitrarily two or more combination.
10. crystal silicon solar batteries module as claimed in claim 4, wherein, described metal layer is the aluminium paste sinter layer.
11. such as each described crystal silicon solar batteries module in the claim 1 to 10, wherein, described the first and second conductive strips are made of copper.
12. such as each described crystal silicon solar batteries module in the claim 1 to 11, wherein, comprise that at least two crystal silicon solar batteries sheets and at least one comprise the public conductive strips of the first section and the second section;
Wherein, for two crystal silicon solar batteries sheets adjacent one another are, the first section of described at least one public conductive strips is used as being attached at the first conductive strips of the front surface of first crystal silicon solar batteries sheet, and the second section of described at least one public conductive strips is used as being attached at the second conductive strips of the rear surface of second crystal silicon solar batteries sheet.
13. crystal silicon solar batteries module as claimed in claim 12, wherein, the first surface of the first section of described at least one public conductive strips is attached at the front surface of first crystal silicon solar batteries sheet, and the opposite second surface of its second section is attached at the rear surface of second crystal silicon solar batteries sheet.
14. such as each described crystal silicon solar batteries module in the claim 1 to 13, also comprise:
Front encapsulated layer, it is covered in the front surface of crystal silicon solar batteries sheet; And
Rear encapsulated layer, it is covered in the rear surface of crystal silicon solar batteries sheet.
15. crystal silicon solar batteries module as claimed in claim 14 also comprises:
Header board, it is covered in the front surface of described front encapsulated layer; And
Backboard, it is covered in the rear surface of described rear encapsulated layer.
16. a method of making the crystal silicon solar batteries module comprises the steps:
The crystal silicon solar batteries sheet is provided, and described crystal silicon solar batteries sheet has reciprocal front and rear surfaces, and one in the described front and rear surfaces is dereliction grid line surface, and another in the described front and rear surfaces is band main grid line surface or dereliction grid line surface;
Conducting resinl and the first and second conductive strips are provided; And
Connect the first and second conductive strips at the crystal silicon solar batteries sheet, wherein the first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current, the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet by means of conducting resinl in mode that can collected current.
17. the method for manufacturing crystal silicon solar batteries module as claimed in claim 16, wherein, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises:
Conducting resinl is put on the front surface of crystal silicon solar batteries sheet with the form of the first conductive adhesive tape;
Conducting resinl is put on the rear surface of crystal silicon solar batteries sheet with the form of the second conductive adhesive tape; And
The first conductive strips are attached at the first conductive adhesive tape on the crystal silicon solar batteries sheet, and the second conductive strips are attached at the second conductive adhesive tape on the crystal silicon solar batteries sheet.
18. the method for manufacturing crystal silicon solar batteries module as claimed in claim 16, wherein, the step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises:
Conducting resinl is put on the first conductive strips and the second conductive strips; And
The first conductive strips are attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second conductive strips are attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
19. the method for manufacturing crystal silicon solar batteries module as claimed in claim 18, wherein, the step that conducting resinl is put on the first conductive strips and the second conductive strips comprises:
Sheet of conductor material is provided;
Conducting resinl is provided and it is put on sheet of conductor material; And
Cut described sheet of conductor material to produce the first and second conductive strips.
20. the method for manufacturing crystal silicon solar batteries module as claimed in claim 16 wherein, provides the step of conducting resinl and the first and second conductive strips to comprise:
Sheet of conductor material is provided, and it has the first and second intervals;
Conducting resinl is provided and it is put on the first surface in the first interval of sheet of conductor material and the opposite second surface between Second Region; And
Cut described sheet of conductor material producing the first and second conductive strips, the first and second conductive strips longitudinally have respectively respectively the first and second interval the first section and the second sections that form by described sheet of conductor material; And
The step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises:
The first section of the first conductive strips is attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second section of the second conductive strips is attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
21. the method for manufacturing crystal silicon solar batteries module as claimed in claim 16 wherein, provides the step of conducting resinl and the first and second conductive strips to comprise:
Sheet of conductor material is provided, and it has the first and second opposite surfaces;
Conducting resinl is provided and it is put on the first surface of sheet of conductor material and opposite second surface; And
Cut described sheet of conductor material to produce the first and second conductive strips, the tow sides of the first and second conductive strips all scribble conducting resinl; And
The step that connects the first and second conductive strips at the crystal silicon solar batteries sheet comprises:
The first section of the first conductive strips is attached at the front surface of crystal silicon solar batteries sheet by means of described conducting resinl, and the second section of the second conductive strips is attached at the rear surface of crystal silicon solar batteries sheet by means of described conducting resinl.
22. the method such as each described manufacturing crystal silicon solar batteries module in the claim 16 to 21, wherein, providing the step of crystal silicon solar batteries sheet to comprise provides at least two crystal silicon solar batteries sheets and comprises the first section and at least one public conductive strips of the second section, wherein, for two crystal silicon solar batteries sheets adjacent one another are, the first section of described at least one public conductive strips is used as being attached at the first conductive strips of the front surface of first crystal silicon solar batteries sheet, and its second section is used as being attached at the second conductive strips of the rear surface of second crystal silicon solar batteries sheet.
23. the method for manufacturing crystal silicon solar batteries module as claimed in claim 22, wherein, the first surface of the first section of described at least one public conductive strips is suitable for being attached at the front surface of first crystal silicon solar batteries sheet, and the opposite second surface of its second section is suitable for being attached at the rear surface of second crystal silicon solar batteries sheet.
24. the method such as each described manufacturing crystal silicon solar batteries module among the claim 16-23, wherein, the front surface of described crystal silicon solar batteries sheet is formed with many secondary grid lines that are used for collected current parallel to each other and that separate, and the first conductive strips traverse these secondary grid lines and are electrically connected with their foundation.
25. the method for manufacturing crystal silicon solar batteries module as claimed in claim 24, wherein, the front surface of described crystal silicon solar batteries sheet is dereliction grid line surface, and the first conductive strips directly are electrically connected with described many secondary grid lines by described conducting resinl.
26. the method such as each described manufacturing crystal silicon solar batteries module among the claim 16-25, wherein, the rear surface of described crystal silicon solar batteries sheet is the dereliction grid line surface that is formed by metal layer, and the second conductive strips directly are electrically connected with described metal layer by described conducting resinl.
27. the method such as each described manufacturing crystal silicon solar batteries module among the claim 16-26 also comprises:
After the crystal silicon solar batteries sheet has been connected the first and second conductive strips, front encapsulated layer and rear encapsulated layer are applied to respectively on the front surface and rear surface of crystal silicon solar batteries sheet.
28. the method for manufacturing crystal silicon solar batteries module as claimed in claim 27 also comprises header board and backboard are applied to respectively on described front encapsulated layer and the rear encapsulated layer.
29. such as the method for each described manufacturing crystal silicon solar batteries module among the claim 16-28, wherein, described conducting resinl comprises polymer and is scattered in the conductive particle of at least 0.1% weight in the polymer.
30. the method for manufacturing crystal silicon solar batteries module as claimed in claim 28, wherein, described polymer is selected from a kind of or arbitrarily multiple combination in following a group: acrylate, polyethylene and ethylene copolymers, epoxy resin, silicones.
31. such as the method for claim 28 or 29 described manufacturing crystal silicon solar batteries modules, wherein, described conductive particle is by being selected from a kind of in following one group or arbitrarily multiple constituting: gold, silver, nickel, copper, aluminium, zinc, tin, carbon nano-tube, Graphene.
32. such as the method for each described manufacturing crystal silicon solar batteries module among the claim 16-31, wherein, described conducting resinl comprises conducting polymer composite.
33. the method for manufacturing crystal silicon solar batteries module as claimed in claim 32, wherein, described conducting polymer composite is selected from: polyacetylene class conducting polymer composite, the polythiophene class conducting polymer composite, polypyrrole class conducting polymer composite, polyaniline compound conducting polymer composite and above arbitrarily two or more combination.
34. the method for manufacturing crystal silicon solar batteries module as claimed in claim 26, wherein, described metal layer is the aluminium paste sinter layer.
35. such as the method for each described manufacturing crystal silicon solar batteries module among the claim 16-34, wherein, described the first and second conductive strips are made of copper.
CN2011103049247A 2011-09-27 2011-09-27 Crystal silicon solar battery module and manufacturing method thereof Pending CN103022201A (en)

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CN105845774A (en) * 2016-04-06 2016-08-10 东莞市祖科能源科技有限公司 Method utilizing waste silicon chips, waste cells or cells to manufacture photovoltaic solar cell panel
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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
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Application publication date: 20130403