CN102254995A - Positive electrode design method for lowering unit consumption - Google Patents
Positive electrode design method for lowering unit consumption Download PDFInfo
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- CN102254995A CN102254995A CN2011101885846A CN201110188584A CN102254995A CN 102254995 A CN102254995 A CN 102254995A CN 2011101885846 A CN2011101885846 A CN 2011101885846A CN 201110188584 A CN201110188584 A CN 201110188584A CN 102254995 A CN102254995 A CN 102254995A
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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
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Abstract
The invention discloses a positive electrode design method for lowering unit consumption. The positive electrode design method for lowering the unit consumption is characterized by comprising the following steps of: 1, setting the line width of a positive electrode screen plate to be between 50 and 90um; 2, designing a main grid line into a plurality of rows, and designing a plurality of small holes in each row; 3, keeping the distance between the periphery of the main grid line and the edge of a silicon chip to be between 0.15 and 0.25mm; 4, uniformly distributing circular holes with different sizes and apertures d of between 0.06 and 0.12mm in the middle of the main grid line, alternately arranging the circular holes in two adjacent rows, namely one row is provided with N holes, and the other row is provided with N-1 holes; 5, keeping the center spaces H of the holes in the two adjacent rows to be 2d+/-0.005mm; and 6, keeping the center spaces M of two adjacent holes in the same row to be 2d+/-0.005mm. In a positive electrode designed by the method, the cost is lowered by 3 to 12 percent approximately during actual printing, the conversion efficiency is kept constant or slightly improved, and the appearance is not correspondingly changed.
Description
Technical field
The present invention relates to the solar battery sheet front electrode, relate in particular to a kind of front electrode method for designing that reduces unit consumption.
Background technology
Along with the increase in demand of the world to new forms of energy, the sales volume of solar battery sheet is also become better and better, and positive electrode is the important component part of solar battery sheet.Positive electrode in the kind electrode production process, uses slurry more as shown in Figure 1 in the prior art, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of front electrode method for designing that reduces unit consumption, solve the cost of manufacture problem of higher that exists in the prior art.
The technical solution adopted in the present invention is, a kind of positive electrode method for designing that reduces unit consumption is provided, and it is characterized in that, comprise the steps,
The first step: the live width of positive electrode half tone is set to 50-90um;
Second step: the main grid line is designed to several rows, every several apertures of row design;
The 3rd step: around the main grid line and the distance between the silicon chip edge be 0.15-0.25mm;
The 4th goes on foot: evenly distributed aperture d is the different size circular hole of 0.06mm to 0.12mm in the middle of main delete line, and adjacent two row's circular holes adopt alternate formula to arrange, and promptly one arrange N hole, and another arranges N-1 hole;
The 5th step: the center distance H of adjacent two rounds is 2d ± 0.005mm;
The 6th step: the center distance M in same row's adjacent two holes is 2d ± 0.005mm.
The invention has the beneficial effects as follows: adopt method for designing of the present invention, the reduction of actual print cost is about between 3% to 12%, and conversion efficiency remains unchanged or slightly improves.
Description of drawings
The crystal silicon solar batteries sheet positive electrode structure of Fig. 1 prior art silk screen printing;
The crystal silicon solar batteries sheet main grid line structure of Fig. 2 prior art;
Fig. 3 adopts the battery sheet main grid toe-in composition of the inventive method design.
Among the figure: d represents the diameter that punches on the main grid line; H represents the distance between the center of adjacent two rounds; L represents the distance at the center in main grid line edge and first hole; M represents the distance between same row's the center in adjacent two holes.
Embodiment
Below in conjunction with accompanying drawing technical solution of the present invention is elaborated
The invention provides a kind of front electrode method for designing that reduces unit consumption, it is characterized in that, comprise the steps the first step: the live width of positive electrode half tone is set to 50-90um;
Second step: the main grid line is designed to several rows, every several apertures of row design;
The 3rd step: around the main grid line and the distance between the silicon chip edge be 0.15-0.25mm;
The 4th goes on foot: evenly distributed aperture d is the different size circular hole of 0.06mm to 0.12mm in the middle of main delete line, and adjacent two row's circular holes adopt alternate formula to arrange, and promptly one arrange N hole, and another arranges N-1 hole;
The 5th step: the center distance H of adjacent two rounds is 2d ± 0.005mm;
The 6th step: the center distance M in same row's adjacent two holes is 2d ± 0.005mm.
Adopt the positive electrode of the inventive method design, the cost reduction is about between 3% to 12% during actual print, and conversion efficiency remains unchanged or slightly improves, and outward appearance does not have corresponding the variation.
Adopt a kind of positive electrode that reduces unit consumption of the inventive method design, comprise main grid line, thin grid line, the main grid line is provided with the several rows hole.Around the main grid line and the distance between the silicon chip edge be 0.15-0.25mm.The width of thin grid line is 50-90um.Evenly distributed aperture d is the different size hole of 0.06mm to 0.12mm in the middle of main delete line, and adjacent two rounds adopt alternate formula to arrange.The center distance H of adjacent two rounds is 2d ± 0.005mm, and the center distance M in same row's adjacent two holes is 2d ± 0.005mm.L represents the distance at the center in main grid line edge and first hole among the figure.
Embodiment 1
The half tone that the live width 80um positive electrode that this experiment uses certain half tone company to provide punches, same batch silicon chip, identical slurry is identical with the working condition of non-punching half tone.Table 1 is the weight in wet base contrast situation after the positive electrode printing of the positive electrode that designs of the present invention and prior art.Experimental result shows that the design in this enforcement example has reduced the weight in wet base of silk screen printing, helps reducing the unit consumption of crystal silicon solar batteries sheet.
Table 1
Table 2 is the unit for electrical property parameters contrast situations behind the positive electrode printing sintering of the positive electrode that obtains of the inventive method and prior art.Experimental result shows, under the prerequisite that the unit consumption of crystal silicon solar batteries sheet reduces, significant change does not take place its unit for electrical property parameters, and implements in example at this, and conversion efficiency maintains on the basis of former data.
Table 2
Embodiment 2
The half tone that the live width 85um positive electrode that this experiment uses certain half tone company to provide punches, same batch silicon chip, identical slurry is identical with the working condition of non-punching half tone.Table 3 is the weight in wet base contrast situations after the positive electrode that obtains of the inventive method and the printing of prior art positive electrode.Experimental result shows that the design in the present embodiment has reduced the weight in wet base of silk screen printing, and the unit consumption reduced rate is 10.27%, helps reducing the unit consumption of crystal silicon solar batteries sheet.
Table 3
Table 4 is the unit for electrical property parameters contrast situations behind the positive electrode that obtains of the inventive method and the prior art positive electrode printing sintering.Experimental result shows, under the prerequisite that the unit consumption of crystal silicon solar batteries sheet reduces, its unit for electrical property parameters has significant change, and parallel resistance is significantly increased, and conversion efficiency increases by 0.13%.
Table 4
It should be noted last that, above embodiment only is used to illustrate technical scheme of the present invention and is unrestricted, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the claim scope of the present invention.
Claims (1)
1. a front electrode method for designing that reduces unit consumption is characterized in that, comprise the steps,
The first step: the live width of positive electrode half tone is set to 50-90um;
Second step: the main grid line is designed to several rows, every several apertures of row design;
The 3rd step: around the main grid line and the distance between the silicon chip edge be 0.15-0.25mm;
The 4th goes on foot: evenly distributed aperture d is the different size circular hole of 0.06mm to 0.12mm in the middle of main delete line, and adjacent two row's circular holes adopt alternate formula to arrange, and promptly one arrange N hole, and another arranges N-1 hole;
The 5th step: the center distance H of adjacent two rounds is 2d ± 0.005mm;
The 6th step: the center distance M in same row's adjacent two holes is 2d ± 0.005mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101885846A CN102254995A (en) | 2011-07-05 | 2011-07-05 | Positive electrode design method for lowering unit consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101885846A CN102254995A (en) | 2011-07-05 | 2011-07-05 | Positive electrode design method for lowering unit consumption |
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| CN102254995A true CN102254995A (en) | 2011-11-23 |
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| CN2011101885846A Pending CN102254995A (en) | 2011-07-05 | 2011-07-05 | Positive electrode design method for lowering unit consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538956A (en) * | 2018-03-08 | 2018-09-14 | 苏州太阳井新能源有限公司 | A method of preparing solar cell surface metal grid lines |
Citations (5)
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|---|---|---|---|---|
| US20060060238A1 (en) * | 2004-02-05 | 2006-03-23 | Advent Solar, Inc. | Process and fabrication methods for emitter wrap through back contact solar cells |
| WO2009149841A2 (en) * | 2008-06-11 | 2009-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Solar cell and method for the production thereof |
| US20100240166A1 (en) * | 2009-03-23 | 2010-09-23 | Sanyo Electric Co., Ltd. | Manufacture method for photovoltaic module |
| WO2010126038A1 (en) * | 2009-04-27 | 2010-11-04 | 京セラ株式会社 | Solar cell element, segmented solar cell element, solar cell module, and electronic appliance |
| CN101609848B (en) * | 2009-07-13 | 2010-12-01 | 江苏林洋新能源有限公司 | Front and back surface electrodes of screen printing crystalline silicon solar cell and manufacturing method thereof |
-
2011
- 2011-07-05 CN CN2011101885846A patent/CN102254995A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060238A1 (en) * | 2004-02-05 | 2006-03-23 | Advent Solar, Inc. | Process and fabrication methods for emitter wrap through back contact solar cells |
| WO2009149841A2 (en) * | 2008-06-11 | 2009-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Solar cell and method for the production thereof |
| US20100240166A1 (en) * | 2009-03-23 | 2010-09-23 | Sanyo Electric Co., Ltd. | Manufacture method for photovoltaic module |
| WO2010126038A1 (en) * | 2009-04-27 | 2010-11-04 | 京セラ株式会社 | Solar cell element, segmented solar cell element, solar cell module, and electronic appliance |
| CN101609848B (en) * | 2009-07-13 | 2010-12-01 | 江苏林洋新能源有限公司 | Front and back surface electrodes of screen printing crystalline silicon solar cell and manufacturing method thereof |
Non-Patent Citations (1)
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| 魏真: ""丝网印刷在太阳能电池中的应用"", 《广东印刷》, no. 3, 30 June 2011 (2011-06-30), pages 16 - 17 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538956A (en) * | 2018-03-08 | 2018-09-14 | 苏州太阳井新能源有限公司 | A method of preparing solar cell surface metal grid lines |
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Address after: 314206 Zhejiang city of Pinghu province xingcang Childs Road No. 1 Applicant after: ZHEJIANG FORTUNE ENERGY CO., LTD. Address before: 314206 Zhejiang city of Pinghu province xingcang Childs Road No. 1 Applicant before: Zhejiang Fortune Photovoltaic Co.,Ltd. |
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Application publication date: 20111123 |