CN106992226A - A kind of reworking method of the bad cell piece of silk-screen printing - Google Patents
A kind of reworking method of the bad cell piece of silk-screen printing Download PDFInfo
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- CN106992226A CN106992226A CN201710233986.0A CN201710233986A CN106992226A CN 106992226 A CN106992226 A CN 106992226A CN 201710233986 A CN201710233986 A CN 201710233986A CN 106992226 A CN106992226 A CN 106992226A
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- cell piece
- silk
- screen printing
- bad
- reworking method
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000007650 screen-printing Methods 0.000 title claims abstract description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 42
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000007639 printing Methods 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000007654 immersion Methods 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000005587 bubbling Effects 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 238000002386 leaching Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 4
- 235000019441 ethanol Nutrition 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000010998 test method Methods 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (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)
- Printing Methods (AREA)
Abstract
The invention discloses a kind of reworking method of the bad cell piece of silk-screen printing, comprise the following steps：1) the bad cell piece of printing is collected, and wipes the slurry for removing its surface, the first cell piece is obtained；2) first cell piece is put into the descaling bath equipped with mixed acid and soaked, after immersion, obtain the second cell piece；The mixed acid is the mixed liquor of pure water, hydrochloric acid and hydrogen peroxide；3) second cell piece is taken, with pure water rinsing to its surface in neutrality, the 3rd cell piece is obtained；4) the 3rd cell piece is dried, obtains the 4th cell piece；5) the 4th cell piece returns to silk screen and is printed, sintered.The reworking method technique is simple, processing safety is high；The cell piece high conversion efficiency for doing over again out, leakage rate is small, high yield rate.
Description
Technical field
The present invention relates to the side of doing over again of solar battery sheet technical field, more particularly to a kind of bad cell piece of silk-screen printing
Method.
Background technology
The back of the body electric field and back electrode of solar battery sheet are normally at the back side of solar battery sheet, form the back of the body electricity of battery
And bottom electrode, with the Top electrode phase quota on cell piece surface and, play the electric energy for producing solar battery sheet and send to outside
The effect on boundary.Above-mentioned Top electrode is formed by silver paste, back of the body electric field by printing, drying, sinter.But in cell piece screen printing
In the production process of brush, due to mechanical and artificial factor, often occur that some printings are abnormal and cause to produce screen printing
Brush defective products, these defective products have the defect such as printed empty print broken string, print dirty, node, thick line etc. so that too
The outward appearance or electric conversion performance abnormal parameters of positive energy cell piece.When these substandard products are after drying, sintering, mark is not met then gently
Standard, serious directly scraps, so as to have influence on final product qualification rate.Simultaneously as cell piece cost is in holistic cost
Shared large percentage, if directly scrapped these unqualified cell pieces, it will cause cost to increase.
In order to reduce production cost, it is necessary to carry out processing of doing over again to the defective products that these printings are produced.These places of doing over again
The defective products of reason is referred to as silk-screen printing and does over again bad before cell piece burning freezing of a furnace in piece, that is, screen printing process
Piece, it is broadly divided into dirty (because net is broken, web plate spillage and human operational error cause in printing process), bad of printing
(because equipment fault, manual operation are improper, slurry web plate causes extremely in printing process) and jam are (due to setting in printing process
Cause for failure and broken) three major types.
Solar battery sheet does over again all more convenient before printing process, but it is cumbersome to do over again after the printing.
Conventional method is to pick absolute ethyl alcohol with cleaning piece to be cleaned, but this operating method causes slurry to be easily stained with cell piece
Edge, battery drain can be caused after printing-sintering again.Also, based on this method, need again front electrode slurry is clear
Wash very clean, then need to expend a large amount of manpowers, time and materials, if the number of batteries that need to do over again is larger, then the people of consuming
Power, time and material are just more.More seriously, because cell piece surface is rough suede structure, the slurry of recess
It is not easy erasing clean；Want to wipe clean the slurry on surface completely, then can destroy the matte on cell piece surface, finish so as to destroy
The PN junction of deep only 0.3 microns.If slurry is printed on the destroyed place of PN junction after doing over again, easily PN junction is caused to leak
Electricity, reduction battery conversion efficiency and qualification rate.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of returning for the bad cell piece of silk-screen printing
Work method, technique is simple, processing safety is high；The cell piece high conversion efficiency for doing over again out, leakage rate is small, high yield rate.
The purpose of the present invention is realized using following technical scheme：
A kind of reworking method of the bad cell piece of silk-screen printing, comprises the following steps：
1) the bad cell piece of printing is collected, and wipes the slurry for removing its surface, the first cell piece is obtained；
2) first cell piece is put into the descaling bath equipped with mixed acid and soaked, after immersion, obtain the second electricity
Pond piece；The mixed acid is the mixed liquor of pure water, hydrochloric acid and hydrogen peroxide；
3) second cell piece is taken, with pure water rinsing to its surface in neutrality, the 3rd cell piece is obtained；
4) the 3rd cell piece is dried, obtains the 4th cell piece；
5) the 4th cell piece returns to silk screen and is printed, sintered.
It is preferred that, in step 1) in, the slurry on the bad cell piece surface of printing is removed with industrial alcohol wipe.
It is preferred that, in step 1) in, before the slurry on the bad cell piece surface of printing is dried, carry out wiping removing
Operation.
It is preferred that, in step 2) in, soak time is 1-3h；With volume basis, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2；
Wherein, the concentration of hydrochloric acid is 30-55%, and the concentration of hydrogen peroxide is 20-35%.
It is preferred that, soak time is 2h；The concentration of hydrochloric acid is 45%, and the concentration of hydrogen peroxide is 27.5%.
It is preferred that, in step 2) in, in immersion process, open bubbling pattern.
It is preferred that, in step 2) in, the first cell piece described in 350-450 pieces is put into the descaling bath simultaneously to be soaked
Bubble, the first cell piece described in this 350-450 piece is considered as a collection of；2-3 batches of first cell pieces of often immersion, then change mixed once
Acid.
It is preferred that, in step 4) in, the 3rd cell piece is dried with centrigugal swing dryer, and it is 18-22 DEG C to control temperature, when
Between be 3-8min.
It is preferred that, it is 20 DEG C to control temperature, and the time is 5min.
It is preferred that, in step 3) before, repeat step 2) 1-2 times.
Compared with prior art, the beneficial effects of the present invention are：
The reworking method of the bad cell piece of silk-screen printing provided by the present invention, technique is simple, processing safety is high；Do over again
Cell piece high conversion efficiency out, leakage rate is small, high yield rate, so that it is bad to significantly reduce solar battery sheet production
Rate, significantly reduces production cost.Its cardinal principle is as described below：Printing the surface of bad cell piece has containing a large amount of metals
Ion and organic matter, cell piece surface is wiped by industrial alcohol, and the slurry of major part can be eliminated, but electric cell piece
The metal ion of in matte and edge attachment can not still be removed；Then, into being soaked in descaling bath, the hydrochloric acid in mixed acid
Chemically reacted with metal ion, under the strong oxidation of hydrogen peroxide, the metal ion quilt completely of cell piece surface attachment
Reaction, so as to reach that thoroughly cleaning prints the effect of bad cell piece.
Compared to traditional reworking method, the cell piece after present invention cleaning, its electric leakage ratio can reach less than 0.3%,
Yield rate and efficiency reach the effect maintained an equal level with producing line.And traditional reworking method, typically will be just straight after cell piece wiped clean
Return printing process is connect, electric leakage crash rate is high.
Embodiment
Below, with reference to embodiment, the present invention is described further：
Embodiment 1
A kind of reworking method of the bad cell piece of silk-screen printing, comprises the following steps：
1) by the bad cell piece centralized collection of printing before silk screen sintering, before the slurry on cell piece surface is dried, use
Industrial alcohol wipes the slurry for removing its surface, obtains the first cell piece；
Also, in operation it should be noted that following 2 points：A, the bad cell piece of the printing gathered will be cleaned in time,
It can not deposit the long time (within 2h)；Because the resting period is oversize, the slurry on cell piece surface can be caused to air-dry, can so be made
Dry finish is more in cell piece matte, alcohol wipe is not clean, and follow-up mixing acid soak can not also be cleaned up,
Cell piece outward appearance can be caused unqualified and inefficiency problem；B, during wiping, because cell piece is relatively thin, so gently to take light
Put, gently wipe, wiped after the thicker slurry in cell piece surface, to go through whether wiped clean, particularly cell piece
Edge, if wiping is not clean, is easily caused because residual slurry is too thick, and follow-up mixing acid soak can not be dry by its cleaning completely
Only, so as to cause cell piece electric leakage failure.
2) the first cell piece is put into the descaling bath equipped with mixed acid and soaked, after immersion, obtain the second cell piece；
Mixed acid is mixed by pure water, hydrochloric acid and hydrogen peroxide, and according to volume basis, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2, wherein
The concentration of hydrochloric acid is 45%, and the concentration of hydrogen peroxide is 27.5%；Soak time is 2h, during which opens bubbling pattern.
Meanwhile, the first cell piece is soaked after 2h in mixed acid, need to check whether it cleans up, if not cleaning up,
Then need to continue to soak, until slurry is completely removed；
3) the second cell piece is taken, with pure water rinsing, in neutrality when the moisture on cell piece surface is detected with pH test paper, if
Aobvious acidity need to be cleaned with pure water again, obtain the 3rd cell piece；
4) the 3rd cell piece is dried with centrigugal swing dryer, controls 20 DEG C of temperature, the time is 5min, taken out, obtain the 4th
Cell piece；
5) the 4th cell piece returns to silk screen and is printed, sintered.
Embodiment 2
The difference of embodiment 2 and embodiment 1 is：
Step 2) in, soak time is 1.5h, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2, the wherein concentration of hydrochloric acid is 50%,
The concentration of hydrogen peroxide is 30%.
Embodiment 3
The difference of embodiment 3 and embodiment 1 is：
Step 2) in, soak time is 2.5h, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2, the wherein concentration of hydrochloric acid is 35%,
The concentration of hydrogen peroxide is 25%；
Step 4) in, the 3rd cell piece is dried with centrigugal swing dryer, 18 DEG C of temperature is controlled, the time is 8min.
Embodiment 4
The difference of embodiment 4 and embodiment 1 is：
Step 2) in, soak time is 3h, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2, the wherein concentration of hydrochloric acid is 30%, double
The concentration of oxygen water is 20%；
Step 4) in, the 3rd cell piece is dried with centrigugal swing dryer, 22 DEG C of temperature is controlled, the time is 3min.
Embodiment 5
The difference of embodiment 5 and embodiment 1 is：
Step 2) in, soak time is 2.3h, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2, the wherein concentration of hydrochloric acid is 40%,
The concentration of hydrogen peroxide is 28%；
Step 4) in, the 3rd cell piece is dried with centrigugal swing dryer, 19 DEG C of temperature is controlled, the time is 6min.
Comparative example 1
A kind of reworking method of the bad cell piece of silk-screen printing：The bad cell piece of printing before silk screen sintering is concentrated and received
Collection, before the slurry on cell piece surface is dried, the slurry on its surface is removed with industrial alcohol wipe, and silk screen is returned immediately and is carried out
Printing, sintering operation.
Electric performance test
Following electrical performance indexes are carried out by the cell piece that Example 1-5 and comparative example 1 are obtained according to traditional test methods
Test：Open-circuit voltage (Uoc), short circuit current flow (Isc), series resistance (Rs), parallel resistance (Rsh), fill factor, curve factor (FF), conversion
Efficiency (Ncell), reverse current (Irev2), test result see the table below 1.
The embodiment 1-5 of table 1 and the cell piece of comparative example 1 performance inventory table
| Uoc | Isc | Rs | Rsh | FF | NCell | Irev2 | |
| Producing line data | 0.6315 | 8.970 | 0.0017 | 259 | 79.08 | 0.18416 | 0.1408 |
| Embodiment 1 | 0.6318 | 8.973 | 0.0017 | 242 | 78.98 | 0.18412 | 0.1504 |
| Embodiment 2 | 0.6317 | 8.971 | 0.0018 | 225 | 78.51 | 0.18498 | 0.1628 |
| Embodiment 3 | 0.6308 | 8.951 | 0.0016 | 235 | 78.23 | 0.18486 | 0.1904 |
| Embodiment 4 | 0.6309 | 8.911 | 0.0019 | 210 | 78.12 | 0.18399 | 0.1589 |
| Embodiment 5 | 0.6311 | 8.890 | 0.0020 | 225 | 78.19 | 0.18385 | 0.1705 |
| Comparative example 1 | 0.6295 | 8.855 | 0.0021 | 51 | 78.06 | 0.18110 | 0.3250 |
From upper table 1, embodiment 1-5 do over again after cell piece, its electrical property substantially with producing line maintain an equal level.And comparative example 1
Cell piece, wiped only with alcohol, it is impossible to the metal ion and residual organic matter on cell piece surface are cleaned dry completely
Only, cell piece surface contamination is serious, causes its open-circuit voltage, short circuit current flow, fill factor, curve factor, conversion efficiency and parallel resistance all to compare
Relatively low, particularly parallel resistance differs greatly with producing line data；And series resistance and reverse current are then higher, so as to result in pair
The cell piece efficiency that ratio 1 does over again out is low, and electric leakage is big, and doing over again, failure is more, and yield rate is low.And embodiment 1-5 do over again after electricity
Pond piece then effectively prevent the cell piece of this problem, particularly embodiment 1, and its electrical property and producing line data are closest, are optimal
Embodiment.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of reworking method of the bad cell piece of silk-screen printing, it is characterised in that comprise the following steps：
1) the bad cell piece of printing is collected, and wipes the slurry for removing its surface, the first cell piece is obtained；
2) first cell piece is put into the descaling bath equipped with mixed acid and soaked, after immersion, obtain the second cell piece；
The mixed acid is the mixed liquor of pure water, hydrochloric acid and hydrogen peroxide；
3) second cell piece is taken, with pure water rinsing to its surface in neutrality, the 3rd cell piece is obtained；
4) the 3rd cell piece is dried, obtains the 4th cell piece；
5) the 4th cell piece returns to silk screen and is printed, sintered.
2. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 1) in, use
Industrial alcohol wipes the slurry for removing the bad cell piece surface of printing.
3. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 1) in,
Before the slurry on the bad cell piece surface of printing is dried, wiping clear operation is carried out.
4. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 2) in, leaching
The bubble time is 1-3h；With volume basis, pure water：Hydrochloric acid：Hydrogen peroxide=4：2：2；Wherein, the concentration of hydrochloric acid is 30-55%, dioxygen
The concentration of water is 20-35%.
5. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 4, it is characterised in that soak time is 2h；
The concentration of hydrochloric acid is 45%, and the concentration of hydrogen peroxide is 27.5%.
6. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 2) in,
In immersion process, bubbling pattern is opened.
7. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 2) in,
First cell piece described in 350-450 pieces is put into the descaling bath simultaneously to be soaked, the first cell piece described in this 350-450 piece
It is considered as a collection of；2-3 batches of first cell pieces of often immersion, then change mixed once acid.
8. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 4) in, institute
State the 3rd cell piece to be dried with centrigugal swing dryer, it is 18-22 DEG C to control temperature, and the time is 3-8min.
9. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 8, it is characterised in that it is 20 to control temperature
DEG C, the time is 5min.
10. the reworking method of the bad cell piece of silk-screen printing as claimed in claim 1, it is characterised in that in step 3) before,
Repeat step 2) 1-2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233986.0A CN106992226A (en) | 2017-04-11 | 2017-04-11 | A kind of reworking method of the bad cell piece of silk-screen printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233986.0A CN106992226A (en) | 2017-04-11 | 2017-04-11 | A kind of reworking method of the bad cell piece of silk-screen printing |
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| CN106992226A true CN106992226A (en) | 2017-07-28 |
Family
ID=59415635
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710233986.0A Pending CN106992226A (en) | 2017-04-11 | 2017-04-11 | A kind of reworking method of the bad cell piece of silk-screen printing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054243A (en) * | 2017-12-16 | 2018-05-18 | 广东爱旭科技股份有限公司 | A kind of reworking method of bad of monocrystalline PERC solar cell plated films |
| CN110098107A (en) * | 2019-05-13 | 2019-08-06 | 浙江贝盛光伏股份有限公司 | A kind of technique for realizing polysilicon printing process exception piece quality qualification |
| CN111628048A (en) * | 2020-06-09 | 2020-09-04 | 山西潞安太阳能科技有限责任公司 | Cleaning method for reworked wafer of screen printing of crystalline silicon battery |
| CN113889551A (en) * | 2021-08-12 | 2022-01-04 | 中威新能源(成都)有限公司 | Recovery method and reworking method of poor printed sheet of photovoltaic cell |
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| DE102010054114A1 (en) * | 2010-12-10 | 2012-06-14 | Centrotherm Photovoltaics Ag | Drying device for drying electronic silk-screen printing paste on surface of solar cell for manufacturing electrical strip conductor, has transport unit defining transport plane that lies between openings of supplying and exhausting units |
| US20140127854A1 (en) * | 2011-03-29 | 2014-05-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Silk-Screen Stencil for Printing onto a Photovoltaic Cell |
| CN104009122A (en) * | 2014-05-26 | 2014-08-27 | 奥特斯维能源（太仓）有限公司 | Processing method for reworking silicon wafers in silk-screen printing |
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| CN101217169A (en) * | 2007-12-27 | 2008-07-09 | 江阴浚鑫科技有限公司 | A reworking method on degraded products after the printing of crystal silicon solar battery |
| DE102010054114A1 (en) * | 2010-12-10 | 2012-06-14 | Centrotherm Photovoltaics Ag | Drying device for drying electronic silk-screen printing paste on surface of solar cell for manufacturing electrical strip conductor, has transport unit defining transport plane that lies between openings of supplying and exhausting units |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108054243A (en) * | 2017-12-16 | 2018-05-18 | 广东爱旭科技股份有限公司 | A kind of reworking method of bad of monocrystalline PERC solar cell plated films |
| CN110098107A (en) * | 2019-05-13 | 2019-08-06 | 浙江贝盛光伏股份有限公司 | A kind of technique for realizing polysilicon printing process exception piece quality qualification |
| CN111628048A (en) * | 2020-06-09 | 2020-09-04 | 山西潞安太阳能科技有限责任公司 | Cleaning method for reworked wafer of screen printing of crystalline silicon battery |
| CN113889551A (en) * | 2021-08-12 | 2022-01-04 | 中威新能源(成都)有限公司 | Recovery method and reworking method of poor printed sheet of photovoltaic cell |
| CN113889551B (en) * | 2021-08-12 | 2023-12-01 | 中威新能源(成都)有限公司 | Recovery method and reworking method for defective photovoltaic cell printing sheet |
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Application publication date: 20170728 |