CN103171259A - Solar cell electrode printing halftone and printing method thereof - Google Patents
Solar cell electrode printing halftone and printing method thereof Download PDFInfo
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- CN103171259A CN103171259A CN2011104361522A CN201110436152A CN103171259A CN 103171259 A CN103171259 A CN 103171259A CN 2011104361522 A CN2011104361522 A CN 2011104361522A CN 201110436152 A CN201110436152 A CN 201110436152A CN 103171259 A CN103171259 A CN 103171259A
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- web plate
- grid line
- bridging
- printing screen
- halftone
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Abstract
The invention discloses a solar cell electrode printing halftone and a printing method thereof. The solar cell electrode printing halftone comprises main grid lines and fine grid lines. The solar cell electrode printing halftone is provided with a grid line complementary structure, wherein a mark used for identifying the direction of the halftone is arranged on a non-working area, the arrangement mode of bridging of the fine grid line of the halftone is as follows: according to the marked mark used for identifying the direction of the halftone, the halftone is rotated by 180 degrees around the centre of a working area on the halftone plane, and then after accurate counterpoint, the bridging position of the halftone fine grid line after rotation complements the bridging position of the fine grid line before rotation. According to the solar cell electrode printing halftone and the printing method thereof, an electrode grid line obtained after two times of printing is even, smooth, and large in depth-width ratio, meanwhile, the problem of virtual print is resolved, and the conversion efficiency of a solar cell is improved.
Description
Technical field
The invention belongs to the manufacture of solar cells technical field, relate in particular to a kind of electrode of solar battery Printing screen and printing process thereof.
Background technology
Fast development along with economy, the consumption of the energy is increasing, the storage capacity of the non-renewable resources such as coal and oil reduces day by day, and this impels people to the continuous exploration of new forms of energy (as nuclear energy, solar energy, wind energy, biomass energy, geothermal energy, ocean energy, Hydrogen Energy etc.).Wherein, source as many energy on the earth, solar energy has occupied consequence in the research of new forms of energy, the development of solar battery technology is more and more faster, although the relatively traditional forms of electricity generation such as firepower of its cost will exceed much at present, but in the 21 century of advocating energetically low-carbon economy, the research of solar battery technology will be energy research one, field key player.
The transformation efficiency that improves solar cell is a main target of present solar cell research, except the improvement to the selection of cell substrate material, substrate manufacture craft, make the electrode of solar battery of excellent performance and take suitable printing process also can improve the transformation efficiency of battery.
As the important step that crystal silicon cell is made, the printing quality of electrode of solar battery printing has very large impact to the performance of final cell piece.And the factor that affects printing quality is except the destabilizing factor that printing machine exists, and the performance of Printing screen itself has also had a strong impact on final printing quality.Traditional battery electrode printing process is to adopt common web plate to carry out the one or many printing, and mainly there is following defect problem in it:
1, empty seal (being breakpoint) easily appears in one-step print, and the depth-width ratio of thin grid line is little;
Although 2, repeatedly printing can be avoided empty seal, thin grid line seriously broadens, and affects the battery illuminating area, and the result of repeatedly repeating print is thin grid line out-of-flatness, " camel peak " can occur.
Therefore, this kind repeatedly mode of printing not only cost is high, and do not bring corresponding benefit, be not suitable for the Produce on a large scale of enterprise.So it is to develop research that industry is needed the problem of solution badly, provides a kind of and make Printing screen rational in infrastructure and adopt corresponding suitable printing process to solve above-mentioned problems of the prior art.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of defective that exists in present prior art that solves, with electrode of solar battery Printing screen and the printing process thereof of the transformation efficiency that improves solar cell.
For achieving the above object, technical scheme of the present invention is:
A kind of electrode of solar battery Printing screen, include main grid line and thin grid line, this electrode of solar battery Printing screen is provided with the grid line complementary structure, wherein, be provided with on its inoperative zone for as the sign of distinguishing the web plate direction, the arrangement mode of the thin grid line bridging of described web plate is set to: by the sign of distinguishing the web plate direction of sign, with web plate on the web plate plane around 180 ° of the central rotations of web plate working region by accurate contraposition, make in the thin grid line of postrotational web plate the bridging locations complementary of thin grid line before bridging and rotation.
Further, the thin grid line bridging of described web plate is the splayed bridging.
Further, the thin grid line bridging of described web plate is the bridging that is parallel to each other.
Further, the described sign system of distinguishing the web plate direction is by arranging both forward and reverse directions or arrow represents on web plate.
A kind of printing process of adopting electrode of solar battery Printing screen of the present invention comprises the steps:
Silicon chip is carried out the first impression;
After the first impression, dry, carry out the second impression after oven dry; Wherein, in second impression process, the position that Printing screen is original with respect to silicon chip has rotated 180 ° on the web plate plane;
Dry again at last, sintering.
Further, in second impression process, on web plate and in-plane that silicon face contacts, according to the both forward and reverse directions sign that arranges on web plate with Printing screen with respect to original position Rotate 180 °, silicon chip keeps primary print direction.
Further, in second impression process, on web plate and in-plane that silicon face contacts, according to the direction arrow sign that identifies on web plate with silicon chip with respect to the position Rotate 180 of original silicon chip °, Printing screen keeps primary print direction.
Due to the special grid line complementary structure of Printing screen of the present invention, according to printing process of the present invention, the thin grid line of first impression rear electrode can occur that the traditional printing mode is shown goes out " camel peak ", but through the second impression, " camel peak " just can disappear; The gate electrode line that obtains after twice printing is evenly smooth, and depth-width ratio is large, has also solved empty seal problem simultaneously, has improved the transformation efficiency of solar cell.
Description of drawings
Fig. 1 is the structure chart of one embodiment of the invention electrode of solar battery Printing screen.
Fig. 2 is the structure chart of another embodiment of the present invention electrode of solar battery Printing screen.
Fig. 3 is the enlarged diagram at web plate A shown in Figure 1 place.
Fig. 4 is the enlarged diagram at web plate B shown in Figure 1 place.
Fig. 5 is web plate shown in Figure 1 according to the schematic diagram at B place after both forward and reverse directions sign C1 Rotate 180 °.
Fig. 6 is the enlarged diagram that in Fig. 2, web plate A ' locates.
Fig. 7 is the enlarged diagram that in Fig. 2, web plate B ' locates.
Fig. 8 schematic diagram that to be web plate shown in Figure 2 locate according to B ' after the direction arrow C2 Rotate 180 of sign direction °.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
A kind of electrode of solar battery Printing screen of the present invention, include main grid line and thin grid line, it is provided with the grid line complementary structure, wherein, be provided with on its inoperative zone for as the sign of distinguishing the web plate direction, as sign both forward and reverse directions or sign arrow.The arrangement mode of the thin grid line bridging of described web plate is set to: by the sign of distinguishing the web plate direction of sign, with web plate on the web plate plane around 180 ° of the central rotations of web plate working region by accurate contraposition, make the bridging locations complementary of thin grid line before the thin grid line bridging of postrotational web plate and rotation.
Adopt the printing process of electrode of solar battery Printing screen of the present invention, it comprises the steps: silicon chip is carried out the first impression, and the described first impression gets final product according to a conventional method, therefore repeat no more; After the first impression, dry, carry out the second impression after oven dry; Wherein, in second impression process, the position that Printing screen is original with respect to silicon chip has rotated 180 ° on the web plate plane; Dry again at last, sintering.In actual application, in the situation that allow, can repeatedly print.
As one embodiment of the invention, please refer to Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5.Wherein, described electrode of solar battery web plate has the grid line complementary structure, is provided with the sign C1 of both forward and reverse directions on web plate.Described web plate includes main grid line and thin grid line, and thin grid line A, the B of described web plate is the splayed bridging with specific arrangement mode.As Fig. 3, Fig. 4, shown in Figure 5, wherein Fig. 3 is the enlarged diagram at web plate A shown in Figure 1 place; And Fig. 4 is the enlarged diagram at web plate B shown in Figure 1 place; Fig. 5 is web plate shown in Figure 1 according to the schematic diagram at B place after both forward and reverse directions sign C1 Rotate 180 °.With web plate Rotate 180 ° on the solar cell silk screen printing machine, after accurate contraposition, the thin grid line splayed bridging A1 at the thin grid line splayed bridging B1 at web plate B place and web plate A place is without intersecting, be complementation, bridging on web plate in the thin grid line in other position is also taked take the center, workspace of web plate to design as the complementary mode of basic point rotation, i.e. bridging locations complementary before bridging in the thin grid line of web plate after Rotate 180 ° and rotation in thin grid line.Adopt when described in the present embodiment, web plate prints, at first by common method, silicon chip is carried out the first impression; Dry after the first impression, after oven dry, carry out the second impression, in second impression process, on web plate and in-plane that silicon face contacts, according to the both forward and reverse directions sign with Printing screen with respect to original position Rotate 180 °, silicon chip keeps primary print direction; Dry again at last, sintering, thereby complete printing process.
As another embodiment of the present invention, please refer to Fig. 2, Fig. 6, Fig. 7 and shown in Figure 8.Wherein, described electrode of solar battery web plate has the grid line complementary structure, is provided with the direction arrow C2 of sign direction on web plate.Described web plate includes main grid line and thin grid line, the thin grid line A ' of described web plate, the bridging that B ' has the specific arrangement mode and is parallel to each other, and as Fig. 6, Fig. 7, shown in Figure 8, wherein Fig. 6 is the enlarged diagram that in Fig. 2, web plate A ' locates; And Fig. 7 is the enlarged diagram that in Fig. 2, web plate B ' locates; Fig. 8 schematic diagram that to be web plate shown in Figure 2 locate according to B ' after the direction arrow C2 Rotate 180 of sign direction °.Wherein, the arrangement mode of described thin grid line is: web plate is pressed direction arrow C2 Rotate 180 ° on the solar cell silk screen printing machine, after accurate contraposition, the bridging A2 that web plate B ' locates to be parallel to each other between the bridging B2 that is parallel to each other between thin grid line and the thin grid line that web plate A ' locates is without overlapping, and is namely complementary; Bridging on web plate in the thin grid line in other position also takes take center, web plate workspace as basic point that the complementary mode of rotation designs, i.e. bridging locations complementary before bridging in the thin grid line of web plate after Rotate 180 ° and rotation in thin grid line.Adopt when described in the present embodiment, web plate prints, at first by common method, silicon chip is carried out the first impression; Dry after the first impression, carry out the second impression after oven dry, in second impression process, on web plate and in-plane that silicon face contacts, according to direction arrow sign with silicon chip with respect to the position Rotate 180 of original silicon chip °, Printing screen keeps primary print direction; Dry again at last, sintering, thereby complete printing process.
Due to the special grid line complementary structure of Printing screen of the present invention, according to printing process of the present invention, the thin grid line of first impression rear electrode can occur that the traditional printing mode is shown goes out " camel peak ", but through the second impression, " camel peak " just can disappear; The gate electrode line that obtains after twice printing is evenly smooth, and depth-width ratio is large, has also solved empty seal problem simultaneously, thereby has improved the transformation efficiency of solar cell.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. electrode of solar battery Printing screen, include main grid line and thin grid line, it is characterized in that: it is provided with the grid line complementary structure, wherein, be provided with on its inoperative zone for as the sign of distinguishing the web plate direction, the arrangement mode of the thin grid line bridging of described web plate is set to: by the sign of distinguishing the web plate direction of sign, with web plate on the web plate plane around 180 ° of the central rotations of web plate working region by accurate contraposition, make in the thin grid line of postrotational web plate the bridging locations complementary of thin grid line before bridging and rotation.
2. electrode of solar battery Printing screen as claimed in claim 1, it is characterized in that: the thin grid line bridging of described web plate is the splayed bridging.
3. electrode of solar battery Printing screen as claimed in claim 1, it is characterized in that: the thin grid line bridging of described web plate is the bridging that is parallel to each other.
4. electrode of solar battery Printing screen as claimed in claim 2 or claim 3 is characterized in that: the described sign system of distinguishing the web plate direction is by arranging both forward and reverse directions or arrow represents on web plate.
5. a printing process of adopting electrode of solar battery Printing screen claimed in claim 1, is characterized in that, comprises the steps:
Silicon chip is carried out the first impression;
After the first impression, dry, carry out the second impression after oven dry; Wherein, in second impression process, the position that Printing screen is original with respect to silicon chip has rotated 180 ° on the web plate plane;
Dry again at last, sintering.
6. electrode of solar battery Printing screen as claimed in claim 5, it is characterized in that: in second impression process, on web plate and in-plane that silicon face contacts, according to the both forward and reverse directions that arranges on web plate sign with Printing screen with respect to original position Rotate 180 °, silicon chip keeps primary print direction.
7. electrode of solar battery Printing screen as claimed in claim 5, it is characterized in that: in second impression process, on web plate and in-plane that silicon face contacts, according to the direction arrow that identifies on web plate sign with silicon chip with respect to the position Rotate 180 of original silicon chip °, Printing screen keeps primary print direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110436152.2A CN103171259B (en) | 2011-12-23 | 2011-12-23 | Electrode of solar battery Printing screen and printing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110436152.2A CN103171259B (en) | 2011-12-23 | 2011-12-23 | Electrode of solar battery Printing screen and printing process thereof |
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| CN103171259A true CN103171259A (en) | 2013-06-26 |
| CN103171259B CN103171259B (en) | 2015-09-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868009A (en) * | 2014-02-25 | 2015-08-26 | 株式会社则武 | Manufacturing Method Of Solar Cell |
| CN106926598A (en) * | 2017-02-07 | 2017-07-07 | 英利能源（中国）有限公司 | The method for printing screen of solar battery sheet gate line electrode |
| CN112848723A (en) * | 2020-12-31 | 2021-05-28 | 常州亚玛顿股份有限公司 | Printing process for improving brightness uniformity and picture effect of glass diffusion plate |
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| CN102270696A (en) * | 2011-05-30 | 2011-12-07 | 合肥海润光伏科技有限公司 | Front electrode secondary overprinting process |
| CN202428771U (en) * | 2011-12-23 | 2012-09-12 | 昆山允升吉光电科技有限公司 | Solar cell pole printing screen plate |
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- 2011-12-23 CN CN201110436152.2A patent/CN103171259B/en not_active Expired - Fee Related
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| JPH09293889A (en) * | 1996-04-25 | 1997-11-11 | Kyocera Corp | Solar battery element |
| JP2002043597A (en) * | 2000-07-28 | 2002-02-08 | Kyocera Corp | Solar cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868009A (en) * | 2014-02-25 | 2015-08-26 | 株式会社则武 | Manufacturing Method Of Solar Cell |
| CN106926598A (en) * | 2017-02-07 | 2017-07-07 | 英利能源（中国）有限公司 | The method for printing screen of solar battery sheet gate line electrode |
| CN112848723A (en) * | 2020-12-31 | 2021-05-28 | 常州亚玛顿股份有限公司 | Printing process for improving brightness uniformity and picture effect of glass diffusion plate |
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| Publication number | Publication date |
|---|---|
| CN103171259B (en) | 2015-09-23 |
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