CN203150564U - Solar cell front face grid line segmented cell piece - Google Patents
Solar cell front face grid line segmented cell piece Download PDFInfo
- Publication number
- CN203150564U CN203150564U CN 201220648759 CN201220648759U CN203150564U CN 203150564 U CN203150564 U CN 203150564U CN 201220648759 CN201220648759 CN 201220648759 CN 201220648759 U CN201220648759 U CN 201220648759U CN 203150564 U CN203150564 U CN 203150564U
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- grid line
- line
- battery sheet
- main grid
- solar battery
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Abstract
The utility model relates to a solar cell piece, and concretely relates to a solar cell front face grid line segmented cell piece. A front face grid line of the cell piece comprises main grids and a plurality of secondary grids, the main grids are mutually parallel, the secondary grids are mutually parallel and are perpendicular to the main grids, the number of the main grids is 2-5, and the width is 0.8-1.8mm, and the main grids are formed by line segments with intervals. The solar cell piece effectively reduces silver slurry consumption in a production process, and has obvious effect for reducing the cell cost.
Description
Technical field
The utility model relates to a kind of solar battery sheet, is specifically related to a kind of solar battery front side grid line segmentation battery sheet.
Background technology
Developing rapidly of solar energy industry needs constantly to reduce Material Cost, improves the electricity conversion height and reduces cost of electricity-generating, reaches with civil power with valency or be lower than the target of civil power electricity price.
Current conventional crystal silicon battery is along with the development of industrialization, and conversion efficiency promotes and the cost reduction has had bigger progress.The manufacturing process of crystal silicon solar batteries sheet generally has following several steps: chemical cleaning and surface-texturing are handled, diffusion system knot, edge etching and dephosphorization silex glass, deposition antireflective coating, print electrode, sintering.Solar battery sheet is becoming transform light energy in the process of electric energy, and its inner photo-generated carrier that produces need be collected and draw by the electrode of outside printing, is connected with external circuit then, thereby electric current is transported out.Electrode by described outside printing not only can be used for collecting photo-generated carrier, and can also test solar cell, and then chooses the battery sheet of different efficient, can obtain maximum power output when making solar module.
Solar cell adopts two main grids or three main grid structures in the prior art, and the area that main grid line and secondary grid line cover on the silicon chip is bigger, and this makes the grid line shading rate of prior art reach more than 6%, has reduced the utilization ratio of solar battery sheet.In addition, need precious metal as electrocondution slurry when printing electrode, the area that main grid line and secondary grid line cover on the silicon chip also must make the use of electrocondution slurry increase greatly, therefore, causes the cost of manufacture of solar battery sheet higher.
Summary of the invention
The purpose of this utility model just provides a kind of solar battery front side structure, this positive electrode structure can improve light utilization and the electron collection rate of solar battery sheet effectively, and because of the segmentation of main grid line, the usage quantity of noble metal silver paste can be effectively reduced, the cost of manufacture of solar battery sheet can be reduced.
The technical scheme that a kind of solar battery front side grid line segmentation battery sheet of the present utility model adopts is, the front gate line of described battery sheet comprises main grid line and some secondary grid lines, the main grid line is parallel to each other, be parallel to each other between the secondary grid line and vertical with the main grid line, it is characterized in that the main grid line is 2 ~ 5, width is 0.8 ~ 1.8mm, be made of at interval line segment, front main grid line distributes symmetrically in the solar battery sheet front or spacing does not wait distribution; Main grid line line segment number is 3 ~ 8, and the length of line segment is 3 ~ 15mm; The line segment compartment is connected by two line segments of 80 ~ 200 microns that are parallel to the main grid line.
3 secondary grid line width are 20 ~ 60 μ m, and secondary grid number of lines is at least 50.
Main grid line and secondary grid line length are 153 ~ 155mm.
The battery sheet is square sheet or four jiaos of accurate side's sheets that circular arc is arranged, arc diameter 〉=200mm.
The battery sheet is that monocrystalline silicon or polysilicon are base material.
The beneficial effects of the utility model are: a kind of solar battery front side grid line segmentation battery sheet, the front gate line of described battery sheet comprises main grid line and some secondary grid lines, the main grid line is parallel to each other, be parallel to each other between the secondary grid line and vertical with the main grid line, the main grid line is 2 ~ 5, width is 0.8 ~ 1.8mm, is made of at interval line segment.The solar battery sheet of this structure is because the main grid line is the interval line segment, the line segment compartment is connected by two line segments of 80 ~ 200 microns that are parallel to the main grid line, front electrode printed silver slurry area reduces, the printing weight of anodal silver slurry also decreases, and has reduced the manufacturing cost of solar battery sheet then.For reaching the same valency of civil power, promote this green novel energy source of solar energy and replace traditional energy that deep meaning is arranged.
Description of drawings:
Figure 1 shows that prior art solar battery structure schematic diagram;
Figure 2 shows that the utility model front electrode structural representation.
Among the figure, 101. front main grid lines, 102. positive secondary grid lines; 201. line segment; 202. main grid line; 203. secondary grid line;
Embodiment:
In order to understand the utility model better, below in conjunction with accompanying drawing and example the technical solution of the utility model is described, but the utility model is not limited thereto.
Embodiment:
Conventional solar battery sheet such as Figure of description are shown in Figure 1, comprise two to three front main grid lines 101 and many secondary grid lines 102 in front.
As shown in Figure 2, front electrode of solar battery comprises 2-5 root main grid line 202, and main grid line 202 width are 0.8-1.8 μ m, it can distribute symmetrically in the solar battery sheet front, but spacing does not wait yet, and place, main grid line 202 two ends dwindles into trapezoidal wedge angle, and place, trapezoidal top width is 0.2-0.5mm; Main grid line 202 is made of at interval line segment, and the line segment number is 3-8, and the length of line segment 201 is 3-15mm; Line segment 201 is connected by two line segments that are parallel to the 80-200 micron of main grid line 202.Comprise that also some are parallel to each other and perpendicular to the secondary grid line 203 of main grid line 202, secondary grid line 203 width are 20-60 μ m; Also comprise 2 two secondary grid lines 203 that are parallel to main grid line 202 and connect other secondary grid line 203 end points, width is consistent or close with secondary grid line 203 width, these 2 grid lines can increase electrode loop, prevent that the circuit that secondary grid line 203 short grid cause is obstructed, increase the ability of electrode collected current.
This utility model inventor finds through overtesting, use electrode structure described in the utility model, its shading rate can be reduced to 4%-5% from about 6% of existing battery, in the light-receiving area that has promoted battery effectively and conversion efficiency, the unit consumption of printed silver slurry also reduces more than the 10%-20%, has effectively reduced the manufacturing cost of solar cell.
Claims (5)
1. solar battery front side grid line segmentation battery sheet, the front gate line of described battery sheet comprises main grid line and some secondary grid lines, the main grid line is parallel to each other, be parallel to each other between the secondary grid line and vertical with the main grid line, it is characterized in that the main grid line is 2 ~ 5, width is 0.8 ~ 1.8mm, be made of at interval line segment, front main grid line distributes symmetrically in the solar battery sheet front or spacing does not wait distribution; Main grid line line segment number is 3 ~ 8, and the length of line segment is 3 ~ 15mm; The line segment compartment is connected by two line segments of 80 ~ 200 microns that are parallel to the main grid line.
2. a kind of solar battery front side grid line segmentation battery sheet according to claim 1, it is characterized in that: secondary grid line width is 20 ~ 60 μ m, and secondary grid number of lines is at least 50.
3. a kind of solar battery front side grid line segmentation battery sheet according to claim 1 and 2, it is characterized in that: main grid line and secondary grid line length are 153 ~ 155mm.
4. a kind of solar battery front side grid line segmentation battery sheet according to claim 1 and 2, it is characterized in that: the battery sheet is square sheet or four jiaos of accurate side's sheets that circular arc is arranged, arc diameter 〉=200mm.
5. a kind of solar battery front side grid line segmentation battery sheet according to claim 1 and 2, it is characterized in that: the battery sheet is that monocrystalline silicon or polysilicon are base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648759 CN203150564U (en) | 2012-11-30 | 2012-11-30 | Solar cell front face grid line segmented cell piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648759 CN203150564U (en) | 2012-11-30 | 2012-11-30 | Solar cell front face grid line segmented cell piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203150564U true CN203150564U (en) | 2013-08-21 |
Family
ID=48978068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220648759 Expired - Fee Related CN203150564U (en) | 2012-11-30 | 2012-11-30 | Solar cell front face grid line segmented cell piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203150564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531645A (en) * | 2013-10-22 | 2014-01-22 | 江苏峰谷源储能技术研究院有限公司 | Solar cell with main grid sectioned |
| CN104332507A (en) * | 2014-10-24 | 2015-02-04 | 无锡帝科电子材料科技有限公司 | Cross positive electrode screen printing graph |
-
2012
- 2012-11-30 CN CN 201220648759 patent/CN203150564U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531645A (en) * | 2013-10-22 | 2014-01-22 | 江苏峰谷源储能技术研究院有限公司 | Solar cell with main grid sectioned |
| CN104332507A (en) * | 2014-10-24 | 2015-02-04 | 无锡帝科电子材料科技有限公司 | Cross positive electrode screen printing graph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20201130 |