CN202855747U - High-efficient polycrystalline cell sheet - Google Patents
High-efficient polycrystalline cell sheet Download PDFInfo
- Publication number
- CN202855747U CN202855747U CN 201220393364 CN201220393364U CN202855747U CN 202855747 U CN202855747 U CN 202855747U CN 201220393364 CN201220393364 CN 201220393364 CN 201220393364 U CN201220393364 U CN 201220393364U CN 202855747 U CN202855747 U CN 202855747U
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- Prior art keywords
- grid line
- cell sheet
- main grid
- grid wire
- utility
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The present utility model discloses a high-efficient polycrystalline cell sheet which is small in contacting resistance and high in conversion efficiency. The cell sheet comprises a main grid wire, and a secondary grid wire connected with the main grid wire, the cell sheet is characterized in that a gradually changed line is formed within a 5mm distance ranging from the secondary grid wire and the main grid wire, and the width is 80 to 60um. The high-efficient polycrystalline cell sheet is suitable for polycrystalline cell sheets.
Description
Technical field
The utility model relates to a kind of cell piece, relates in particular to a kind of for the solar energy polycrystal cell piece.
Background technology
The photovoltaic solar industry is the emerging industry of a sustainable development, but high cost is the principal element that the restriction photovoltaic industry further develops.The photoelectric conversion efficiency that improves battery is to reduce the effective means of cost, improves the conversion efficiency of solar cell, just can improve the power stage of monolithic battery sheet, also namely can improve the profit value of monolithic battery sheet.Therefore improve the cell piece photoelectric conversion rate and can bring huge social benefit, be conducive to build a resource-conserving, environmentally friendly novel society.Polysilicon has become the main raw material(s) that solar battery sheet is produced because of its higher cost performance, occupation rate of market surpasses 50%, but still exist the grid line contact resistance higher than monocrystalline in the existing polycrystalline silicon battery plate manufacture process, the lifting that affects electric current, opens pressure and fill factor, curve factor.
The utility model content
The technical problems to be solved in the utility model provides the efficient polycrystalline cell piece that a kind of contact resistance is little, transformation efficiency is high.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises main grid line, the inferior grid line that is connected with the main grid line, it is characterized in that the interior formation gradual change lines of 5mm distance that described grid line is connected with the main grid line, and its width is 80 to 60 μ m gradual changes.
The utility model compared with prior art has evident characteristic and beneficial effect:
1, contact resistance is little.Because the utility model is that 70 μ m are improved to 80 to 60 μ m gradual changes with tradition time grid design width, is conducive to reduce contact resistance.
2, transformation efficiency is high.Because time grid line width integral body diminishes in the utility model, it is long-pending to improve effective photoelectric conversion surface, produces larger photoelectric current, thereby improves transformation efficiency.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
As shown in drawings: the utility model comprises main grid line 1, the inferior grid line 2 that is connected with main grid line 1, the interior formation gradual change lines of 5mm distance that inferior grid line 2 is connected with main grid line 1, and its width is 80 to 60 μ m gradual changes.
Claims (1)
1. an efficient polycrystalline cell piece comprises main grid line, the inferior grid line that is connected with the main grid line, it is characterized in that the interior formation gradual change lines of 5mm distance that described grid line is connected with the main grid line, and its width is 80 to 60 μ m gradual changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393364 CN202855747U (en) | 2012-08-08 | 2012-08-08 | High-efficient polycrystalline cell sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393364 CN202855747U (en) | 2012-08-08 | 2012-08-08 | High-efficient polycrystalline cell sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855747U true CN202855747U (en) | 2013-04-03 |
Family
ID=47986914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220393364 Expired - Fee Related CN202855747U (en) | 2012-08-08 | 2012-08-08 | High-efficient polycrystalline cell sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515460A (en) * | 2013-10-22 | 2014-01-15 | 江苏峰谷源储能技术研究院有限公司 | Solar cell with gradually varied fine grid |
| CN106784045B (en) * | 2016-12-28 | 2019-05-07 | 中国电子科技集团公司第十八研究所 | A multi-level grid line layout structure and method of a solar cell |
| CN111114108A (en) * | 2020-01-06 | 2020-05-08 | 江西展宇新能源股份有限公司 | A solar cell front electrode screen |
-
2012
- 2012-08-08 CN CN 201220393364 patent/CN202855747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515460A (en) * | 2013-10-22 | 2014-01-15 | 江苏峰谷源储能技术研究院有限公司 | Solar cell with gradually varied fine grid |
| CN106784045B (en) * | 2016-12-28 | 2019-05-07 | 中国电子科技集团公司第十八研究所 | A multi-level grid line layout structure and method of a solar cell |
| CN111114108A (en) * | 2020-01-06 | 2020-05-08 | 江西展宇新能源股份有限公司 | A solar cell front electrode screen |
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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: 20130403 Termination date: 20140808 |
|
| EXPY | Termination of patent right or utility model |