CN202695462U - Sectional-type positive-electrode highly-efficient solar cell sheet - Google Patents
Sectional-type positive-electrode highly-efficient solar cell sheet Download PDFInfo
- Publication number
- CN202695462U CN202695462U CN 201220148669 CN201220148669U CN202695462U CN 202695462 U CN202695462 U CN 202695462U CN 201220148669 CN201220148669 CN 201220148669 CN 201220148669 U CN201220148669 U CN 201220148669U CN 202695462 U CN202695462 U CN 202695462U
- Authority
- CN
- China
- Prior art keywords
- sheet
- grid line
- grid lines
- main grid
- positive electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000011218 segmentation Effects 0.000 claims abstract description 6
- 239000004332 silver Substances 0.000 abstract description 4
- 229910052709 silver Inorganic materials 0.000 abstract description 4
- 238000007639 printing Methods 0.000 abstract description 3
- 230000003247 decreasing Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010043431 Thinking abnormal Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
Abstract
The utility model discloses a sectional-type positive-electrode highly-efficient solar cell sheet. The two sides of the cell sheet are respectively a front surface electrode and a back surface electrode. The front surface electrode comprises two main grid lines and more than one auxiliary grid line. The main grid lines and the auxiliary grid line are communicated in a perpendicular manner. The solar cell sheet is characterized in that the main grid lines are formed by connecting ten groups of sheet-shaped grid lines in series. The sheet-shaped grid lines at the two ends of the main grid lines are needle-like sheet-shaped grid lines. The sheet-shaped grid lines in the middle of the main grid lines are rectangular sheet-shaped grid lines. Each of the rectangular sheet-shaped grid lines can be divided into six segments. Under the condition that the efficiency is not influenced, the assembly unsoldering rate is reduced; the problem of presence of errors in testing by a BERGER tester after segmentation is solved; and simultaneously, the consumption of positive silver is reduced and the cost for printing a positive electrode is decreased.
Description
Technical field
The utility model relates to a kind of segmented positive electrode solar battery sheet, belongs to technical field of solar batteries.
Background technology
Solar energy is as a kind of green energy resource, and is inexhaustible, pollution-free with it, not more and more be subject to people's attention by the advantages such as region resource limitation.Along with the development of solar cell, industry also in continuous raising, not only is embodied in the battery electrical property aspect to battery quality, simultaneously the cost of battery consumption is also had the higher requirement.In making the solar cell process, silk screen printing is very crucial together operation, distinguishes print positive electrode, back electrode and aluminium back surface field by silk screen printing at battery front side and the back side.The design of positive electrode printing is not only played very important impact to the conversion efficiency of battery, and what simultaneously the silver slurry that consumes of printshop accounted for the battery cost of manufacture is close to half.
Therefore improve the conversion efficiency of cell piece, the emphasis that the silver-colored consumption of starching of reduction cell piece becomes common concern in the industry.Generally can reach the purpose that reduces unit consumption by the performance of improving the silver slurry and the design that changes half tone, wherein change the design of half tone, the grid line of minimizing number is arranged, reduce the grid line width, reduce thickness, change the methods such as net sand, but great majority all can affect conversion efficiency in these methods, and the amplitude that reduces is also limited.Most solar cell piece positive electrode main grid line designs in the market all are continous ways, the main grid line total length of this design is oversize, namely wasted silver-colored slurry, when derived current, seem again and waste one's talent on a petty job, therefore the utility model provides a kind of novel half tone design, design a kind of segmented main grid solar cell, when keeping having high conversion efficiency, effectively reduced the printing weight of positive silver.
The BERGER tester generally adopts eight row's collected current voltages to test, and every row's probe all is comprised of three probes.Cell piece is carried out in the process of IV test at tester, if the length of each segmentation is oversize, can cause unnecessary waste of material, if but each segmentation is too short or irrational distribution, will cause the probe of tester in test process, there is the part probe to press less than causing loose contact on the main grid line, and produces larger test error or even test errors.
Summary of the invention
The purpose of this utility model provides a kind of segmented positive electrode solar battery sheet that reduces unit consumption.
In order to achieve the above object, the utility model provides a kind of segmented positive electrode solar battery sheet for the engaged test mode that the BERGER tester adopts eight row's probes to arrange, the two sides of cell piece is respectively front electrode and backplate, front electrode comprises two main grid lines and one or more secondary grid line, described main grid line and secondary grid line vertical connection, it is characterized in that, described main grid line is made of ten groups of sheet grid line series connection, the sheet grid line at main grid line two ends is needle-like sheet grid line, middle sheet grid line is rectangle sheet grid line, and described rectangle sheet grid line is divided into six sections.
Preferably, two adjacent sheet grid lines are equidistant setting; Described rectangle sheet grid line is equidistant segmentation.
Preferably, the length of described every group of sheet grid line is 7.25mm, two adjacent sheet grid lines be spaced apart 5.5mm; Described rectangle sheet grid line is divided into six sections, every segment length 0.75mm, the adjacent two sections 5.5mm that is spaced apart.
Preferably, the width of described main grid line is 1.5mm.
The utility model is according to the probe arrangement mode of BERGER tester, number of probes, distribution between probe size and probe etc., a kind of segmented positive electrode solar battery sheet that has high conversion efficiency and can effectively reduce unit consumption is provided, two main grid lines are divided into ten groups of sheet grid line series connection to be consisted of, eight row's probes of eight groups of lucky corresponding testers of sheet grid line in the middle of the face, and every group of sheet grid line is divided into six segments, the size of every segment is the just distribution of every probe on corresponding each row's probe again, so both solved that segmentation is oversize to cause positive silver-colored consumption more, the situation that cost is higher, also solved the tester probe and cell piece main grid correspondence is bad, the problem of loose contact has guaranteed that cell piece reaches higher conversion efficiency.The utility model can also according to different manufacturers the tester probe size customize.
Description of drawings
The structural representation of a kind of segmented positive electrode solar battery sheet front electrode that Fig. 1 provides for embodiment.
Among the figure:
1, main grid line; 3, rectangle sheet grid line;
2, needle-like sheet grid line; 4, secondary grid line.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
Embodiment
A kind of segmented positive electrode solar battery sheet that the utility model provides, the two sides is respectively front electrode and backplate.Wherein, front electrode comprises main grid line 1 and secondary grid line 4 as shown in Figure 1, main grid line 1 and secondary grid line 4 vertical connections.Main grid line 1 has two, and wide is 1.5mm, lays respectively at the both sides of front electrode, and main grid line 1 is made of the series connection of ten groups of sheet grid lines, every group of sheet grating line length 7.25mm, adjacent two sheet grid lines be spaced apart 5.5mm.The sheet grid line at main grid line 1 two ends is needle-like sheet grid line 2, and middle eight groups of sheet grid lines are rectangle sheet grid line 3, and each rectangle sheet grid line 3 is divided into six sections, every segment length 0.75mm, the adjacent two sections 0.55mm that is spaced apart.
Claims (4)
1. segmented positive electrode high performance solar batteries sheet, the two sides of cell piece is respectively front electrode and backplate, front electrode comprises two main grid lines (1) and one or more secondary grid line (4), described main grid line (1) and secondary grid line (4) vertical connection, it is characterized in that, described main grid line (1) is made of ten groups of sheet grid line series connection, the sheet grid line at main grid line (1) two ends is needle-like sheet grid line (2), middle sheet grid line is rectangle sheet grid line (3), and described rectangle sheet grid line (3) is divided into six sections.
2. a kind of segmented positive electrode high performance solar batteries sheet as claimed in claim 1 is characterized in that two adjacent sheet grid lines are equidistant setting; Described rectangle sheet grid line (3) is equidistant segmentation.
3. a kind of segmented positive electrode high performance solar batteries sheet as claimed in claim 1 is characterized in that the length of described every group of sheet grid line is 7.25mm, two adjacent sheet grid lines be spaced apart 5.5mm; Described rectangle sheet grid line (3) is divided into six sections, every segment length 0.75mm, the adjacent two sections 5.5mm that is spaced apart.
4. such as the described a kind of segmented positive electrode high performance solar batteries sheet of any one among the claim 1-3, it is characterized in that the width of described main grid line (1) is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220148669 CN202695462U (en) | 2012-04-10 | 2012-04-10 | Sectional-type positive-electrode highly-efficient solar cell sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220148669 CN202695462U (en) | 2012-04-10 | 2012-04-10 | Sectional-type positive-electrode highly-efficient solar cell sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695462U true CN202695462U (en) | 2013-01-23 |
Family
ID=47551036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220148669 Expired - Fee Related CN202695462U (en) | 2012-04-10 | 2012-04-10 | Sectional-type positive-electrode highly-efficient solar cell sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117314A (en) * | 2013-03-05 | 2013-05-22 | 山东力诺太阳能电力股份有限公司 | Solar cell piece |
| CN105428429A (en) * | 2015-11-12 | 2016-03-23 | 宁波尤利卡太阳能科技发展有限公司 | Solar cell back electrode structure |
-
2012
- 2012-04-10 CN CN 201220148669 patent/CN202695462U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117314A (en) * | 2013-03-05 | 2013-05-22 | 山东力诺太阳能电力股份有限公司 | Solar cell piece |
| CN103117314B (en) * | 2013-03-05 | 2016-01-06 | 山东力诺太阳能电力股份有限公司 | Solar battery sheet |
| CN105428429A (en) * | 2015-11-12 | 2016-03-23 | 宁波尤利卡太阳能科技发展有限公司 | Solar cell back electrode structure |
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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 |
Granted publication date: 20130123 Termination date: 20200410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |