CN102082211B - Amorphous silicon solar cell module simplifying process - Google Patents
Amorphous silicon solar cell module simplifying process Download PDFInfo
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- CN102082211B CN102082211B CN2010102475558A CN201010247555A CN102082211B CN 102082211 B CN102082211 B CN 102082211B CN 2010102475558 A CN2010102475558 A CN 2010102475558A CN 201010247555 A CN201010247555 A CN 201010247555A CN 102082211 B CN102082211 B CN 102082211B
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- solar cell
- cell module
- battery
- wire
- silicon solar
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 229910021417 amorphous silicon Inorganic materials 0.000 title abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 8
- 210000001142 back Anatomy 0.000 claims description 19
- 238000002360 preparation method Methods 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 8
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- 239000011889 copper foil Substances 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
Abstract
The invention discloses an amorphous silicon solar cell module simplifying process, which solves the technical problem of high production cost caused by various solar cell module processes and expensive materials for preparing leading-out conducting wires. An adopted technical scheme is that: the amorphous silicon solar cell module simplifying process comprises the following process steps of: preparing the leading-out conducting wires; welding leading-out joints; and packaging and leaving a factory, wherein the leading-out conducting wires are synchronously formed in the processes of scoring solar cells on a back electrode layer and forming serial subcells. The key of the amorphous silicon solar cell module simplifying process is that: positive and negative leading-out conducting wires of the serial subcells are formed by directly scoring the back electrode layer, so that a plurality of processes and connecting materials required for preparing the leading-out conducting wires in a solar cell module process are saved; production efficiency is greatly improved; a large amount of material cost is saved; and great contribution to promoting the rapid development of amorphous silicon solar cells and benefiting for humanity by green environment friendliness industry are made.
Description
Technical field
The present invention relates to a kind of non-crystal silicon solar cell module simplifying process, belong to thin-film solar cells and make the field, particularly a kind ofly change the connection line of sub-battery by the delineation to back electrode, thereby simplify the improvement technique that the battery modules processing step saves production cost.
Background technology
Current thin-film solar cells manufacturing is the industry of a high speed development, manufactures line with regard to the domestic amorphous silicon thin-film solar cell of China, and by the end of the end of the year 2009, just there is family more than 20 in the factory that is engaged in amorphous silicon thin-film solar cell production.
Its production technology of amorphous silicon thin-film solar cell is basic identical, referring to accompanying drawing 1, the preparation of solar cell all is to plate conductive membrane layer at the battery material that will make, light-plated lies prostrate absorbed layer, dorsum electrode layer again, dorsum electrode layer is carried out scribing, form the sub-battery of some, utilize its inner series circuit and the outside circuit of drawing to form photovoltaic cell.Solar cell module technique is on above-mentioned solar battery process basis at present, draws wire in the preparation of two-terminal battery, and welding is drawn joint and encapsulated, dispatches from the factory, and referring to accompanying drawing 2, the concrete operation that wire is drawn in its preparation comprises:
B1, the sub-battery on both sides, the outside are coated with conductive silver glue;
B2, at the sticking Copper Foil band of conductive silver glue;
B3, along adding dielectric film in the middle subcell orientation;
B4, dielectric film fixedly the conductive copper foil, form both positive and negative polarity and draw wire;
This shows, the preparation section of drawing wire in the solar cell module technique is various, because the conductive silver paste of preparation in the material is expensive, often form because complex manufacturing technology is not easy to operate again and be substandard products or waste product, both increased production cost, reduced again production efficiency and product quality.For this problem, prior art does not well solve, and has brought trouble for the work of this area.
Summary of the invention
The present invention is various owing to the preparation section of drawing wire in the solar cell module for solution, the expensive technical problem that causes production cost height, inefficiency of preparation material, designed a kind of non-crystal silicon solar cell module simplifying process, by changing the battery connection line processing step of dorsum electrode layer, save all multiple operation and the material of drawing wire in the solar cell module.
The present invention for realizing the technical scheme that goal of the invention adopts is, a kind of non-crystal silicon solar cell module simplifying process, processing step comprises the wire of drawing of preparation solar cell both positive and negative polarity, draw joint drawing wire welding, encapsulation is dispatched from the factory, above-mentioned draw wire be solar cell at dorsum electrode layer through laser grooving and scribing, form synchronously in the process of formation sub-series battery pack, comprise processing longitudinal channel and horizontal partition raceway groove in the manufacturing procedure of above-mentioned sub-series battery pack structure and form sub-battery area and the step in contact conductor district, realize synchronously that when above step is carried out longitudinal channel is communicated with horizontal partition raceway groove respectively, and the split pole raceway groove is set and forms in the contact conductor district and draw wire.
Key of the present invention is, draw wire by dorsum electrode layer directly being delineated the both positive and negative polarity that forms the sub-series battery, saved and prepared all multiple operation and the connecting material of drawing the wire needs in the solar cell module technique, can make lead-in wire at sub-battery without conductive aluminum tinsel cord or Copper Foil line, also can save simultaneously technique and the expensive conductive silver paste that is coated with conductive silver paste, greatly enhance productivity and save a large amount of Master Costs, make the large contribution of monumental work for advancing greatly developing of amorphous silicon thin-film solar cell to benefit the whole mankind with the environmental protection industry.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Figure 1A～F is the process chart of solar cell in the prior art.
Fig. 2 A～E is the part process flow chart of solar cell module in the prior art.
Fig. 3 A～C is the process chart that the preparation solar cell is drawn wire among the present invention.
In the accompanying drawing, 1 represents conductive membrane layer, and 2 represent the raceway groove that the etching conductive thin layer forms, 3 represent photovoltaic absorption layer, and 4 represent the raceway groove that the etching photovoltaic absorption layer forms, and 5 represent dorsum electrode layer, 6 represent the sub-series battery that the etching dorsum electrode layer forms, and 8 represent conductive silver glue, and 9 represent the Copper Foil band, 10 represent dielectric, and 11 represent the Copper Foil line, and joint is drawn in 12 representatives, 13 represent longitudinal channel, and 14 laterally cut off raceway groove, 15 split pole raceway grooves, the sub-battery area of 16 representatives, 17 represent the contact conductor district.
Embodiment
Referring to Fig. 3, a kind of non-crystal silicon solar cell module simplifying process, processing step comprises the wire of drawing of preparation solar cell both positive and negative polarity, draw joint 12 drawing wire welding, encapsulation is dispatched from the factory, above-mentioned draw wire be solar cell at dorsum electrode layer 5 through laser grooving and scribing, form synchronously in the process of formation sub-series battery pack, comprise processing longitudinal channel 13 in the manufacturing procedure of above-mentioned sub-series battery pack structure and laterally cut off raceway groove 14, and form the step in sub-battery area 16 and contact conductor district 17, when carrying out, above step realizes synchronously that longitudinal channel 13 is communicated with horizontal partition raceway groove 14 respectively, and mode of communicating is: the longitudinal channel at described horizontal partition raceway groove and battery two ends formation " ㄩ " the shape groove that joins, and in " ㄩ " shape groove outside formation " ㄩ " shape contact conductor district, described " ㄩ " shape contact conductor district is positioned at three fringe regions of solar cell, 15 formation of split pole raceway groove is set in contact conductor district 17 draws wire.
The above-mentioned preparation of drawing wire comprises following operation, and its preparation section is order in no particular order:
A, carry out the laser scribing first time at dorsum electrode layer 5: control laser scribing length, vertically delineate, form one group of longitudinal channel 13 along battery;
B, for the second time laser scribing: in the horizontal partition raceway groove 14 that longitudinal channel 13 terminal delineations are communicated with longitudinal channel 13, the contact conductor district 17 that forms sub-battery area 16 and be connected with the two-terminal battery;
C, for the third time laser scribing: 17 vertical wires of drawing of delineating split pole raceway grooves 15, forming battery in the contact conductor district.
After above-mentioned step B finishes, four fringe regions of solar cell are carried out clearly the limit process, the border width of removing is 10～15mm.
In the prior art, the step of preparation process of solar cell comprises successively:
Referring to Figure 1A, depositing electrically conductive thin layer 1 on substrate;
Referring to Figure 1B, laser grooving and scribing conductive membrane layer 1, formation groove 2;
Referring to Fig. 1 C, depositing photovoltaic absorbed layer 3 on conductive membrane layer 1;
Referring to Fig. 1 D, laser grooving and scribing photovoltaic absorption layer 3, formation groove 4;
Referring to Fig. 1 E, depositing metallic films, formation dorsum electrode layer 5 on photovoltaic absorption layer 3;
Referring to Fig. 1 F, laser grooving and scribing dorsum electrode layer, one group of sub-series battery 6 of formation;
At last battery is done clearly limit processing.
On the basis that above-mentioned solar cell preparation is finished, carry out solar cell module preparation technology, its processing step comprises successively:
Referring to Fig. 2 A, the sub-battery on both sides, the outside is coated with conductive silver glue 8;
Referring to Fig. 2 B, copper-surfaced foil 9 on conductive silver glue 8;
Referring to Fig. 2 C, along adding dielectric film 10 in the middle subcell orientation;
Referring to Fig. 2 D, at the fixing conductive copper tinsel cord 11 and contact with Copper Foil band 9 on the two-terminal battery and to be connected to form both positive and negative polarity and to draw wire of dielectric film 10;
Referring to Fig. 2 E, draw joint in 11 welding of Copper Foil line;
Then encapsulate: put insulating film layer, add back-panel glass, and enter laminating machine laminating, add the terminal box welding lead, toward the interior filling gel fixing cord of terminal box, the encapsulation fixed border, or the direct packing of rim frame is not dispatched from the factory, and the module operation machines.
Among the present invention, the processing step of the solar cell module after drawing wire is finished in the processing step of the solar cell before dorsum electrode layer 5 is delineated and preparation, and is all same as the prior art.
Among the present invention, the wire of drawing of solar cell is after dorsum electrode layer 5 is finished in preparation in above-mentioned solar battery process, change the delineation circuit of original sub-battery, adopt crisscross laser scribing, on dorsum electrode layer 5, directly delineate the wire of drawing that forms battery, and then saved and be coated with conductive silver glue 8, sticking Copper Foil band 9 in the solar cell module technique, add dielectric film 10, fixed copper tinsel cord 11 4 procedures, simplify processing step.
Provide a specific embodiment of the present invention, form the wire of drawing of battery through three laser scribing on dorsum electrode layer 5, its operation is followed successively by:
Referring to Fig. 3 A, carry out the laser scribing first time at dorsum electrode layer 5: control laser scribing length, vertically delineate, form one group of longitudinal channel 13 along battery;
Referring to Fig. 3 B, for the second time laser scribing: at the horizontal partition raceway grooves 14 that longitudinal channel 13 terminal delineations are communicated with longitudinal channel 13, the contact conductor district 17 that forms sub-battery area 16 and be connected with the two-terminal battery, and battery carried out clearly limit processing;
Referring to Fig. 3 C, for the third time laser scribing: in the contact conductor district 17 vertically delineation split pole raceway grooves 15, form the wires of drawing of battery.
Draw after conductive line fabrication finishes, the welding battery plus-negative plate draw joint, then encapsulate and dispatch from the factory.
The contrast prior art, key technology of the present invention is, the wire of drawing of solar cell is directly to finish in the technique of dorsum electrode layer 5 delineation formation sub-series batteries, saved the operation in the solar cell module technique in the prior art, can make lead-in wire at battery without conductive aluminum tinsel cord or Copper Foil line, also can save simultaneously technique and the expensive conductive silver glue 8 that is coated with conductive silver glue 8, greatly enhance productivity and save a large amount of Master Costs, make the large contribution of monumental work for advancing greatly developing of amorphous silicon thin-film solar cell to benefit the whole mankind with the environmental protection industry.
Claims (3)
1. non-crystal silicon solar cell module simplifying process, processing step comprises the wire of drawing of preparation solar cell both positive and negative polarity, draw joint drawing wire welding, encapsulation is dispatched from the factory, it is characterized in that: described draw wire be solar cell at dorsum electrode layer through laser grooving and scribing, form synchronously in the process of formation sub-series battery pack, comprise processing longitudinal channel and horizontal partition raceway groove in the manufacturing procedure of above-mentioned sub-series battery pack structure and form sub-battery area and the step in contact conductor district, when carrying out, above step realizes synchronously that longitudinal channel is communicated with horizontal partition raceway groove respectively, and mode of communicating is: the longitudinal channel at described horizontal partition raceway groove and battery two ends formation " ㄩ " the shape groove that joins, and in " ㄩ " shape groove outside formation " ㄩ " shape contact conductor district, described " ㄩ " shape contact conductor district is positioned at three fringe regions of solar cell, the formation of split pole raceway groove is set in " ㄩ " shape contact conductor district draws wire.
2. a kind of non-crystal silicon solar cell module simplifying process according to claim 1, it is characterized in that: described preparation section of drawing wire comprises:
A, carry out the laser scribing first time at dorsum electrode layer: control laser scribing length, vertically delineate, form one group of longitudinal channel along battery;
B, for the second time laser scribing: in the horizontal partition raceway groove that the terminal delineation of longitudinal channel is communicated with longitudinal channel, the contact conductor district that forms sub-battery area and be connected with the two-terminal battery;
C, for the third time laser scribing: the wire of drawing of vertically delineating split pole raceway groove, formation battery in the contact conductor district.
3. a kind of non-crystal silicon solar cell module simplifying process according to claim 2 is characterized in that: after described step B finishes, four fringe regions of solar cell are carried out clearly the limit process, the border width of removing is 10～15mm.
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| CN2010102475558A CN102082211B (en) | 2010-08-09 | 2010-08-09 | Amorphous silicon solar cell module simplifying process |
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| CN2010102475558A CN102082211B (en) | 2010-08-09 | 2010-08-09 | Amorphous silicon solar cell module simplifying process |
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| CN104282802B (en) * | 2013-09-27 | 2016-08-17 | 成都旭双太阳能科技有限公司 | A kind of solaode module of how sub-battery series connection and preparation method thereof |
| CN106684209B (en) * | 2016-12-27 | 2018-03-27 | 成都中建材光电材料有限公司 | A kind of preparation method of new cadmium telluride diaphragm solar battery component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001036104A (en) * | 1999-07-16 | 2001-02-09 | Sanyo Electric Co Ltd | Solar battery module |
| JP2001044454A (en) * | 1999-07-26 | 2001-02-16 | Kanegafuchi Chem Ind Co Ltd | Integrated thin-film solar cell module |
| JP2002124690A (en) * | 2000-10-13 | 2002-04-26 | Sharp Corp | Thin-film solar cell and manufacturing method thereof |
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- 2010-08-09 CN CN2010102475558A patent/CN102082211B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001036104A (en) * | 1999-07-16 | 2001-02-09 | Sanyo Electric Co Ltd | Solar battery module |
| JP2001044454A (en) * | 1999-07-26 | 2001-02-16 | Kanegafuchi Chem Ind Co Ltd | Integrated thin-film solar cell module |
| JP2002124690A (en) * | 2000-10-13 | 2002-04-26 | Sharp Corp | Thin-film solar cell and manufacturing method thereof |
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Application publication date: 20110601 Assignee: CHENGDU XUSHUANG SOLAR TECHNOLOGY Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd.|CHENGDU TAIYISI SOLAR TECHNOLOGY Co.,Ltd. Contract record no.: 2012990000882 Denomination of invention: Amorphous silicon solar cell module simplifying process License type: Exclusive License Record date: 20121213 |
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