CN102044573A - Solar battery grid line electrode - Google Patents
Solar battery grid line electrode Download PDFInfo
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- CN102044573A CN102044573A CN 201010564063 CN201010564063A CN102044573A CN 102044573 A CN102044573 A CN 102044573A CN 201010564063 CN201010564063 CN 201010564063 CN 201010564063 A CN201010564063 A CN 201010564063A CN 102044573 A CN102044573 A CN 102044573A
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- line electrode
- grid
- grid line
- solar battery
- solar cell
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Abstract
The invention discloses a solar battery grid line electrode. Lateral grid lines in the solar battery grid line electrode are of the S shape, i.e. two adjacent lateral grid lines are sequentially connected at ports. The S-shaped solar grid lines in the invention furthest reduce the shading area, improve the smearing problem of the grid lines and reduce the consumption of silver paste on the basis of ensuring light current conduction, are beneficial to the reduction of the production cost, and improve the conversion efficiency of a solar battery.
Description
Technical field
The present invention relates to the front gate line electrode in the crystal silicon solar energy battery, is a kind of gate line electrode that can improve conversion efficiency of solar cell specifically.
Background technology
The traditional handicraft of present conventional solar cell gate line electrode preparation is printed to fixedly figure for the method that adopts silk screen printing with the Ag slurry on emitter, the Al electrode co-sintered with the back side forms then.Under the situation that the solar battery sheet area is fixed, to obtain high conversion rate, the design of the gate line electrode on the solar cell just plays the important and pivotal role, it has determined series resistance, effective extinction area of battery, reverse saturation current etc., for reducing the shading area of gate line electrode, require grid line to want thin as far as possible, will guarantee certain grid line height simultaneously.
For reducing the shading area of gate line electrode, require gate line electrode to want thin as far as possible, but because the restriction of slurry self character, thin grid width has been close to and has reached limiting value, on this basis, we can only reach the purpose that promotes conversion efficiency by optimizing the grid line shaped design, solar cell battery front side grid line is the conventional design that adopts Fig. 1 to show mostly on the market at present, but conventional grid line design is helpless for the situation of the disconnected grid of main grid outward flange, and the electric current that disconnects on the grid line can only lose (as Fig. 2) in vain.In the face of the defective of conventional design, adopted the mode of ameliorating of perimeter seal design, so that collect the electric current (as Fig. 3) of periphery better, but two hidden danger have also appearred simultaneously, the first, four banding mouth has increased the area of two thin grid undoubtedly, thereby has increased the shading area; The second, because two thin grid design directions that seal are vertical with the print direction of print head, more be prone to the thin grid smear in edge, influence press quality, and increased shading area (see figure 4) indirectly.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome the deficiencies in the prior art, a kind of metal grid lines that can improve thin grid smear problem is provided.
Technical scheme: to achieve these goals, the invention provides a kind of solar cell gate line electrode, horizontal grid line is a S shape in the described solar cell gate line electrode, and promptly laterally adjacent two grid lines connect in turn at port.Such shape had both guaranteed effective absorption of disconnected gate current has also been reduced the shading area to greatest extent, and improved solar cell grid line smear problem to a great extent.
When S shape solar energy grid line of the present invention the situation of disconnected grid occurs at the grid line edge, owing to grid line adjacent both ends point links together, so behind the disconnected grid, laterally the photoelectric current on the grid line still transmits with vertical grid line, has improved the conversion efficiency of solar cell.
Beneficial effect: a kind of solar cell grid line of the present invention compared with prior art has following advantage:
S shape solar energy grid line of the present invention guarantee the photoelectric current conduction the basis on reduced the shading area to greatest extent, improved the grid line smear problem, reduce silver-colored slurry consumption, helped the reduction of production cost, improved the conversion efficiency of solar cell simultaneously.
Description of drawings
Fig. 1 is a kind of schematic diagram of conventional solar cell gate line electrode in the prior art.
Fig. 2 is a kind of schematic diagram of the disconnected grid of conventional solar cell gate line electrode in the prior art.
Fig. 3 is a kind of schematic diagram of solar cell gate line electrode in the prior art.
Fig. 4 is a kind of schematic diagram of solar cell gate line electrode smear in the prior art.
Fig. 5 is the schematic diagram of solar cell gate line electrode of the present invention.
Fig. 6 is the schematic diagram of the disconnected grid work of solar cell gate line electrode of the present invention.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.
Embodiment
A kind of solar cell gate line electrode, horizontal grid line is a S shape in the described solar cell gate line electrode, promptly laterally adjacent two grid lines connect in turn at port.
Claims (1)
1. solar cell gate line electrode is characterized in that: in the described solar cell gate line electrode laterally grid line be S shape, promptly laterally adjacent two grid lines connect in turn at port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010564063 CN102044573B (en) | 2010-11-30 | 2010-11-30 | Solar battery grid line electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010564063 CN102044573B (en) | 2010-11-30 | 2010-11-30 | Solar battery grid line electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102044573A true CN102044573A (en) | 2011-05-04 |
| CN102044573B CN102044573B (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010564063 Expired - Fee Related CN102044573B (en) | 2010-11-30 | 2010-11-30 | Solar battery grid line electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN102044573B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222706A (en) * | 2011-06-28 | 2011-10-19 | 厦门市三安光电科技有限公司 | High-concentration solar battery chip |
| CN102916076A (en) * | 2012-09-27 | 2013-02-06 | 奥特斯维能源（太仓）有限公司 | Pattern design for front electrode used for solar battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1606175A (en) * | 2003-10-08 | 2005-04-13 | 夏普株式会社 | Solar cell making method and solar cell made thereby |
| CN1953211A (en) * | 2005-10-18 | 2007-04-25 | 上海太阳能科技有限公司 | Silicon solar cell electrode and its manufacture method |
| CN201956360U (en) * | 2010-11-30 | 2011-08-31 | 奥特斯维能源（太仓）有限公司 | Solar-battery grid-line electrode |
-
2010
- 2010-11-30 CN CN 201010564063 patent/CN102044573B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1606175A (en) * | 2003-10-08 | 2005-04-13 | 夏普株式会社 | Solar cell making method and solar cell made thereby |
| CN1953211A (en) * | 2005-10-18 | 2007-04-25 | 上海太阳能科技有限公司 | Silicon solar cell electrode and its manufacture method |
| CN201956360U (en) * | 2010-11-30 | 2011-08-31 | 奥特斯维能源（太仓）有限公司 | Solar-battery grid-line electrode |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222706A (en) * | 2011-06-28 | 2011-10-19 | 厦门市三安光电科技有限公司 | High-concentration solar battery chip |
| CN102916076A (en) * | 2012-09-27 | 2013-02-06 | 奥特斯维能源（太仓）有限公司 | Pattern design for front electrode used for solar battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102044573B (en) | 2012-12-05 |
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Granted publication date: 20121205 Termination date: 20181130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |