CN104167462A - Poorly printed solar battery reworking method - Google Patents
Poorly printed solar battery reworking method Download PDFInfo
- Publication number
- CN104167462A CN104167462A CN201310184953.3A CN201310184953A CN104167462A CN 104167462 A CN104167462 A CN 104167462A CN 201310184953 A CN201310184953 A CN 201310184953A CN 104167462 A CN104167462 A CN 104167462A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- solar battery
- printing
- organic solvent
- reworking method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003960 organic solvent Substances 0.000 claims abstract description 25
- 239000002253 acid Substances 0.000 claims abstract description 12
- 239000004411 aluminium Substances 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052709 silver Inorganic materials 0.000 claims abstract description 8
- 239000004332 silver Substances 0.000 claims abstract description 8
- 238000007650 screen-printing Methods 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000007639 printing Methods 0.000 claims description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 12
- RBNWAMSGVWEHFP-UHFFFAOYSA-N trans-p-Menthane-1,8-diol Chemical group CC(C)(O)C1CCC(C)(O)CC1 RBNWAMSGVWEHFP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 abstract 2
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 abstract 2
- 229940116411 terpineol Drugs 0.000 abstract 2
- 229910021641 deionized water Inorganic materials 0.000 abstract 1
- 239000013557 residual solvent Substances 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 210000002268 wool Anatomy 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
- H01L31/186—Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02082—Cleaning product to be cleaned
- H01L21/0209—Cleaning of wafer backside
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
Abstract
The invention provides a poorly printed solar battery reworking method. In the prior art, only terpineol and ethanol are respectively used to wipe a silver paste and an aluminium paste, the aluminium paste can be easily left over on a side face or a front face, and therefore a solar battery is caused to lose efficacy. The appearance of the solar battery can be affected due to incomplete volatilization of an organic solvent. The poorly printed solar battery reworking method of the invention is applied to reworking a poorly printed solar battery before sintering processes. The surface of the solar battery is wiped through use of a flexible member soaked with the terpineol, then the surface of the solar battery is wiped through use of a flexible member soaked with the ethanol, the wiped solar battery is placed and soaked in an acid solution, paste metal residuals can be removed, the solar battery can be cleaned through deionized water, finally the solar battery is dried, and the solar battery is subjected to screen printing operation. Validity of reworking can be ensured by the poorly printed solar battery reworking method, and the phenomenon that failure or poor appearance of the solar battery is caused by paste residual or organic solvent residual can be prevented.
Description
Technical field
The present invention relates to solar cell and manufacture field, particularly a kind of reworking method that prints bad solar cell.
Background technology
In the industrialized manufacture process of silicon solar cell, after completing making herbs into wool, diffusion and plating antireflective film, need to proceed the making of solar cel electrode and back surface field, its detailed process is: first carry out backplate printing, carry out again back surface field printing, then carry out front electrode printing, wherein front electrode and backplate all adopt the printing of silver slurry, and back surface field adopts aluminium paste printing.Backplate, electric field and front electrode all need to process through oven for drying after printing, remove the organic solvent in slurry, under suitable atmosphere, carry out again high temperature sintering, organic solvent residual in slurry is fully volatilized, and make metallic particles and silicon chip surface form firmly alloy and good ohmic contact, thereby form the front and back electrode of solar cell.
Printing electrode or during back surface field figure, there will be printing disappearance, spillage to cross seal, disconnected grid, node etc. bad, those not good general directly affect presentation quality and the efficiency of solar cell, in order better to control the discharge of printing defective products, need to do over again to the defective products printing before rear sintering.In current crystal silicon cell processing procedure, the method of doing over again to the bad solar cell of above-mentioned printing is: use respectively terpinol and absolute ethyl alcohol (or isopropyl alcohol) to carry out wiping to silver slurry and aluminium paste, terpinol and ethanol can dissolve respectively silver slurry and aluminium paste preferably, after wiping is good, solar cell are carried out to silk screen printing again.
The bad reworking method of above-mentioned printing exists following problem: first, the method can only be removed the slurry of solar battery surface regional area, some slurries that are embedded in pyramid shape or pit shape matte gap are difficult to wiped clean, residual slurry is particularly infected with and is remained in positive aluminium paste and after oversintering, is easy to destroy PN junction, causes solar cell to lose efficacy; Moreover aluminium paste is easy to stick to the edge of solar cell in wiping process, solar cell short circuit after sintering and losing efficacy; In addition, on the solar cell after wiping, absolute ethyl alcohol or isopropyl alcohol volatilization not exclusively, are added a small amount of residual slurry and can be formed the color spot that similar water wave is the same at solar battery surface, cause solar cell outward appearance defective.
Therefore, how to provide a kind of reworking method that prints bad solar cell to lose efficacy or bad order with the solar cell of avoiding causing because doing over again, become industry technical problem urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of reworking method that prints bad solar cell, by the present invention, can guarantee the validity of doing over again, avoid the solar cell because doing over again caused to lose efficacy and bad order.
For achieving the above object, the present invention will provide a kind of reworking method that prints bad solar cell, be applied in sintering process front for doing over again to printing bad solar cell, comprise the following steps: a, employing are soaked with the surface of the flexible piece wiping solar cell of the first organic solvent, described the first organic solvent is suitable for dissolving silver slurry; B, employing are soaked with the surface of the flexible piece wiping solar cell of the second organic solvent, and described the second organic solvent is suitable for dissolving aluminium paste; C, the solar cell after wiping is placed in acid solution and soaks removing slurry metal residual; D, by solar cell described in washed with de-ionized water; E, dry described solar cell also carry out silk screen printing to it.
In a preferred embodiment, described flexible piece is dust-free paper or nonwoven fabrics.
In a preferred embodiment, described the first organic solvent is terpinol, and the mass percent concentration of described terpinol is more than or equal to 50%.
In a preferred embodiment, described the second organic solvent is ethanol, and the mass percent concentration of described ethanol is more than or equal to 80%.
In a preferred embodiment, in step c, described acid solution is hydrochloric acid or nitric acid.
In further preferred embodiment, in step c, described acid solution is hydrochloric acid solution, and in described hydrochloric acid solution, the mass percent concentration of hydrogen chloride is 8%～20%, and described soak time is more than or equal to 2h.
In a preferred embodiment, in steps d, by Air washer, clean described solar cell, described spray number of times is twice, spray time is all more than or equal to 30min.
In a preferred embodiment, in step e, by drying, be dried described solar cell, described drying temperature is 80～150 ℃, drying time 3～10min.
Cause the inefficacy of solar cell with only coming wiping silver slurry and aluminium paste easily to cause aluminium paste to remain in side or front with terpinol and ethanol respectively in prior art, and easily because not exclusively affecting outward appearance, organic solvent volatilization compares, first the reworking method that the present invention prints bad solar cell adopts the surface of the flexible piece wiping solar cell that is soaked with terpinol, then adopt the surface of the flexible piece wiping solar cell that is soaked with ethanol, then the solar cell after wiping is placed in acid solution and soaks to remove slurry metal residual, afterwards by solar cell described in washed with de-ionized water, solar cell it is carried out to silk screen printing described in final drying.The present invention can guarantee the validity of doing over again, and the solar cell causing because of residual slurry or organic solvent residual of avoiding doing over again lost efficacy or bad order.
Accompanying drawing explanation
Fig. 1 is the flow chart of the reworking method embodiment of the bad solar cell of printing of the present invention.
Specific embodiments
Below in conjunction with specific embodiment and accompanying drawing, describe object of the present invention and effect in detail.
Referring to Fig. 1, the reworking method of the bad solar cell of printing of the present invention, be applied in sintering process front for doing over again to printing bad solar cell, first it carry out step S10, employing is soaked with the surface of the flexible piece wiping solar cell of the first organic solvent, described the first organic solvent is suitable for dissolving silver slurry, and described flexible piece is dust-free paper or nonwoven fabrics etc.In the present embodiment, described flexible piece is dust-free paper, and described the first organic solvent is terpinol, and the mass percent concentration of described terpinol is more than or equal to 50%.
Then continue step S11, adopt the surface of the flexible piece wiping solar cell that is soaked with the second organic solvent, described the second organic solvent is suitable for dissolving aluminium paste, and described flexible piece is dust-free paper or nonwoven fabrics etc.In the present embodiment, described flexible piece is dust-free paper, and described the second organic solvent is ethanol, and the mass percent concentration of described ethanol is more than or equal to 80%.
Then continue step S12, the solar cell after wiping is placed in acid solution and soaks to remove slurry metal residual, described acid solution is hydrochloric acid or nitric acid etc.In the present embodiment, described acid solution is hydrochloric acid solution, and in described hydrochloric acid solution, the mass percent concentration of hydrogen chloride is 8%～20%, and described preset period of time is more than or equal to 2h.
Then continue step S13, by solar cell described in washed with de-ionized water.In the present embodiment, by Air washer, clean described solar cell, described spray number of times is twice, and spray time is all more than or equal to 30min.
Then continue step S14, dry described solar cell also carries out silk screen printing to it.In the present embodiment, by drying, be dried described solar cell, described drying temperature is 80～150 ℃, drying time 3～10min.
In sum, first the reworking method that the present invention prints bad solar cell adopts the surface of the flexible piece wiping solar cell that is soaked with terpinol, then adopt the surface of the flexible piece wiping solar cell that is soaked with ethanol, then the solar cell after wiping is placed in acid solution and soaks to remove slurry metal residual, afterwards by solar cell described in washed with de-ionized water, solar cell it is carried out to silk screen printing described in final drying.The present invention can guarantee the validity of doing over again, and the solar cell causing because of residual slurry or organic solvent residual of avoiding doing over again lost efficacy or bad order.
Claims (8)
- One kind printing bad solar cell reworking method, be applied in sintering process front for doing over again to printing bad solar cell, it is characterized in that, comprise the following steps: a, employing are soaked with the surface of the flexible piece wiping solar cell of the first organic solvent, described the first organic solvent is suitable for dissolving silver slurry; B, employing are soaked with the surface of the flexible piece wiping solar cell of the second organic solvent, and described the second organic solvent is suitable for dissolving aluminium paste; C, the solar cell after wiping is placed in acid solution and soaks removing slurry metal residual; D, by solar cell described in washed with de-ionized water; E, dry described solar cell also carry out silk screen printing to it.
- 2. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, described flexible piece is dust-free paper or nonwoven fabrics.
- 3. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, described the first organic solvent is terpinol, and the mass percent concentration of described terpinol is more than or equal to 50%.
- 4. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, described the second organic solvent is ethanol, and the mass percent concentration of described ethanol is more than or equal to 80%.
- 5. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, in step c, described acid solution is hydrochloric acid or nitric acid.
- 6. the reworking method of the bad solar cell of printing as claimed in claim 5, is characterized in that, in step c, described acid solution is hydrochloric acid solution, and in described hydrochloric acid solution, the mass percent concentration of hydrogen chloride is 8%～20%, and described soak time is more than or equal to 2h.
- 7. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, in steps d, by Air washer, cleans described solar cell, and described spray number of times is twice, and spray time is all more than or equal to 30min.
- 8. the reworking method of the bad solar cell of printing as claimed in claim 1, is characterized in that, in step e, by drying, is dried described solar cell, and described drying temperature is 80～150 ℃, drying time 3～10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184953.3A CN104167462A (en) | 2013-05-16 | 2013-05-16 | Poorly printed solar battery reworking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184953.3A CN104167462A (en) | 2013-05-16 | 2013-05-16 | Poorly printed solar battery reworking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104167462A true CN104167462A (en) | 2014-11-26 |
Family
ID=51911202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310184953.3A Pending CN104167462A (en) | 2013-05-16 | 2013-05-16 | Poorly printed solar battery reworking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167462A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876521A (en) * | 2017-02-14 | 2017-06-20 | 苏州爱康光电科技有限公司 | A kind of silicon solar cell prints bad reworking method |
| CN107731962A (en) * | 2017-10-23 | 2018-02-23 | 英利能源（中国）有限公司 | A kind of solar cell prints reworks processing method |
| CN108282961A (en) * | 2018-01-23 | 2018-07-13 | 苏州市悠文电子有限公司 | Ultrathin flexible RGB panel manufacture crafts |
| CN109616531A (en) * | 2018-12-03 | 2019-04-12 | 江苏中宇光伏科技有限公司 | The printing technology of silicon wafer in a kind of production of solar battery sheet |
| 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 |
| CN114649444A (en) * | 2022-03-15 | 2022-06-21 | 天合光能股份有限公司 | Photovoltaic module short circuit repair method and device without damaging module structure |
-
2013
- 2013-05-16 CN CN201310184953.3A patent/CN104167462A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876521A (en) * | 2017-02-14 | 2017-06-20 | 苏州爱康光电科技有限公司 | A kind of silicon solar cell prints bad reworking method |
| CN107731962A (en) * | 2017-10-23 | 2018-02-23 | 英利能源（中国）有限公司 | A kind of solar cell prints reworks processing method |
| CN108282961A (en) * | 2018-01-23 | 2018-07-13 | 苏州市悠文电子有限公司 | Ultrathin flexible RGB panel manufacture crafts |
| CN109616531A (en) * | 2018-12-03 | 2019-04-12 | 江苏中宇光伏科技有限公司 | The printing technology of silicon wafer in a kind of production of solar battery sheet |
| 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 |
| CN114649444A (en) * | 2022-03-15 | 2022-06-21 | 天合光能股份有限公司 | Photovoltaic module short circuit repair method and device without damaging module structure |
| CN114649444B (en) * | 2022-03-15 | 2023-10-27 | 天合光能股份有限公司 | Photovoltaic module short circuit repairing method and device without damaging module structure |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |