CN104377255A - Grid line designing method capable of reducing current loss - Google Patents
Grid line designing method capable of reducing current loss Download PDFInfo
- Publication number
- CN104377255A CN104377255A CN201410709615.1A CN201410709615A CN104377255A CN 104377255 A CN104377255 A CN 104377255A CN 201410709615 A CN201410709615 A CN 201410709615A CN 104377255 A CN104377255 A CN 104377255A
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- China
- Prior art keywords
- grid lines
- grid line
- line
- grid
- designing method
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Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002002 slurry Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a grid line designing method capable of reducing current loss. Grid lines comprise main grid lines and auxiliary grid lines, each main grid line comprises three or more than three sectional type main grid lines, and the designing characteristic of the auxiliary grid lines includes that each two adjacent auxiliary grid lines are connected to each other between the two corresponding adjacent main grid lines by a corresponding arc or a corresponding straight line. The grid line designing method has the advantages that after the grid line designing method is used, when printing grid lines are broken, current of broken positions can be gathered to the main grid lines through the arcs or the straight lines due to the fact that each two grid lines are connected with each other through the corresponding arc or the corresponding straight line, Isc can be collected as much as possible, and influences on Isc due to line breakage are reduced.
Description
Technical field
The present invention relates to crystal silicon solar batteries sheet and manufacture field, relate to a kind of grid line design method reducing current loss particularly.
Background technology
All the time, the photoelectric conversion efficiency improving solar battery sheet is one of developing direction of photovoltaic industry.In order to improve cell piece conversion efficiency, positive silver paste manufacturer tests formula of size, in experimentation, other pulp property can be sacrificed, as the mobility of slurry, the slurry of new varieties improves a lot in viscosity, 500Pas can be brought up to from original 280 Pas, slurry viscosity is once increase, and the mistake ink of slurry will be very poor, can form a lot of broken string in printing process, in order to reduce the impact of broken string on Isc as far as possible, now design a kind of Novel net plate, collection Isc as much as possible, reduce the impact of broken string on Isc.
Summary of the invention
The object of this invention is to provide a kind of grid line design method reducing current loss, object is collection Isc as much as possible, reduces the impact of broken string on Isc.
In order to solve the problems of the technologies described above, the technical solution used in the present invention: a kind of grid line design method reducing current loss, comprise main gate line and secondary grid line, main gate line is made up of more than three or three segmented main gate line, the design feature of secondary grid line is that adjacent two secondary grid line circular arc or straight lines connect, and this junction is between adjacent two main gate line.
After the invention has the beneficial effects as follows use, in time printing grid line and have broken string, because two grid lines circular arc or straight lines connect, the electric current at broken string place can be pooled in main gate line again by circular arc or straight line, like this can collection Isc as much as possible, reduce the impact of broken string on Isc.
Accompanying drawing explanation
The former grid line design structural representation of Fig. 1
Grid line design structural representation in Fig. 2 the present invention
Secondary grid line a structure chart partly in grid line structure figure in Fig. 3 the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail.
In this embodiment, adopt two kinds of experimental programs to carry out comparative illustration, two kinds of experimental programs all adopt the project organization of three main gate line, experimental program one: adopt former grid line design structure, and as shown in Figure 1, positive electrode pattern housing is closed; Experimental program two: adopt grid line design structure provided by the invention, as shown in Figure 2, positive electrode housing is that adjacent two secondary grid line ports are connected, and the structure of secondary grid line as shown in Figure 3.In above-mentioned experimentation, all adopt polycrystalline silicon battery plate and the conventional polycrystalline cell piece preparation technology of 156mm*156mm, the cell piece prepared is through electric performance test, and its result is as shown in the table.
| NCell | Uoc | Isc | Rs | Rsh | FF | Irev2 | |
| Experimental program two | 17.58% | 0.630 | 8.583 | 0.00226 | 350.88 | 79.05 | 0.0272 |
| Experimental program one | 17.53% | 0.630 | 8.571 | 0.00234 | 340.29 | 79.03 | 0.0304 |
From above-mentioned experimental data, grid line design scheme provided by the invention has certain advantage on Isc, thus promotes the electricity conversion of crystal-silicon battery slice.
Claims (1)
1. one kind is reduced the grid line design method of current loss, comprise main gate line and secondary grid line, it is characterized in that: main gate line is made up of more than three or three segmented main gate line, the design feature of secondary grid line is that adjacent two secondary grid line circular arc or straight lines connect, and this junction is between adjacent two main gate line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709615.1A CN104377255A (en) | 2014-11-28 | 2014-11-28 | Grid line designing method capable of reducing current loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709615.1A CN104377255A (en) | 2014-11-28 | 2014-11-28 | Grid line designing method capable of reducing current loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104377255A true CN104377255A (en) | 2015-02-25 |
Family
ID=52556035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410709615.1A Pending CN104377255A (en) | 2014-11-28 | 2014-11-28 | Grid line designing method capable of reducing current loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104377255A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011043367A1 (en) * | 2009-10-07 | 2011-04-14 | 阪本 順 | Electrically conductive thin film structure, and manufacturing method for same |
| CN202633327U (en) * | 2012-07-05 | 2012-12-26 | 宁波尤利卡太阳能科技发展有限公司 | Facade grid line electrode of crystalline silicon solar cell |
| CN202839628U (en) * | 2012-10-12 | 2013-03-27 | 横店集团东磁股份有限公司 | Front electrode structure of solar cell |
| CN203277395U (en) * | 2013-04-02 | 2013-11-06 | 浙江鸿禧光伏科技股份有限公司 | Grid line structure of solar battery |
| CN204289472U (en) * | 2014-11-28 | 2015-04-22 | 浙江鸿禧能源股份有限公司 | A kind of grid line structure reducing current loss |
-
2014
- 2014-11-28 CN CN201410709615.1A patent/CN104377255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011043367A1 (en) * | 2009-10-07 | 2011-04-14 | 阪本 順 | Electrically conductive thin film structure, and manufacturing method for same |
| CN202633327U (en) * | 2012-07-05 | 2012-12-26 | 宁波尤利卡太阳能科技发展有限公司 | Facade grid line electrode of crystalline silicon solar cell |
| CN202839628U (en) * | 2012-10-12 | 2013-03-27 | 横店集团东磁股份有限公司 | Front electrode structure of solar cell |
| CN203277395U (en) * | 2013-04-02 | 2013-11-06 | 浙江鸿禧光伏科技股份有限公司 | Grid line structure of solar battery |
| CN204289472U (en) * | 2014-11-28 | 2015-04-22 | 浙江鸿禧能源股份有限公司 | A kind of grid line structure reducing current loss |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |