CN104300030A - Adverse-printing removal method - Google Patents
Adverse-printing removal method Download PDFInfo
- Publication number
- CN104300030A CN104300030A CN201310303738.0A CN201310303738A CN104300030A CN 104300030 A CN104300030 A CN 104300030A CN 201310303738 A CN201310303738 A CN 201310303738A CN 104300030 A CN104300030 A CN 104300030A
- Authority
- CN
- China
- Prior art keywords
- printing
- adverse
- cells
- cleaning
- bad
- 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 22
- 238000007639 printing Methods 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000012669 liquid formulation Substances 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- XGZRAKBCYZIBKP-UHFFFAOYSA-L disodium;dihydroxide Chemical compound [OH-].[OH-].[Na+].[Na+] XGZRAKBCYZIBKP-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- 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
-
- 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 relates to an adverse-printing removal method. The method is a method used for processing adverse printing of cells during practical production. Printing slurry residual on surfaces of the cells are removed through the chemical reaction method, so the unqualified cells after reworking can be qualified cells. The method is detailed in the specification, and the specific embodiment scheme is further provided.
Description
Technical field
The present invention is that a kind of removal prints bad method, for the production of the process occurred when printing bad.The main order of the method reduces the printing bad B sheet rate at solar battery sheet finished product, to promote cell piece rate of finished products.
Background technology
Solar energy has the feature of the aspects such as renewable and environmental protection, and this advantage allows and comprises Chinese many countries using solar energy as the New Energy Industry given priority to.China's * * photovoltaic products is mainly supplied to European & American Market, and domestic market share is very little.In recent years, due to the increase of the European and American countries market demand, China's photovoltaic industry achieves and develops fast, and the average annual growth of recent five years reaches more than 40%.Strengthen the background of support dynamics further in policy under, the growth prospect of following photovoltaic industry will be more wide.
Photovoltaic generation industrial chain is from upstream to downstream, and the industry chain (supply chain) mainly comprised comprises polysilicon, silicon chip, cell piece and battery component.In industrial chain, polycrystal silicon cell, the technical threshold of production is more and more lower, and correspondingly, company's distributed number also gets more and more, and profit more and more.
And silk screen printing is as the important ring in solar cell manufacture, it reduces the saving of B sheet rate lifting rate of finished products to cost vital meaning.
Summary of the invention
The present invention is directed to a kind of method of the bad process of printing.The principle utilizing the principle of NaOH and reactive aluminum and nitric acid, hydrochloric acid and silver to react removes silver and the aluminium on cell piece surface.
The present invention is achieved through the following technical solutions:
1. this cleaning as claimed in claim 1, it is characterized in that, the acid solution in wherein said liquid formulations is HCL and HN0
3, alkali lye is NaOH, water is deionized water.
2. this cleaning as claimed in claim 2, it is characterized in that, the material that the cell body of wherein said contain fluid is used is PVDF material or other acid and alkali-resistance material.
Tool of the present invention has the following advantages:
1, cleaning quality is high
According to long-term production practice data, remove the bad method of printing and make the silver-colored aluminium on cell piece surface remove noresidue.The conversion efficiency that cell piece prints again does not reduce;
2, cost has greatly been saved
Dosing once can clean cell piece 5000, and after cleaning, printing reduces B sheet rate more than 95% again, and clean the soda acid consumption of every sheet and carry out again printing cost and adjust bad not the processing of relative cell piece printing and make B sheet, every sheet reduces by 2.5 yuan.(data refer to table 1)
The present invention has following shortcoming:
1, need to be equipped with cleaning equipment, early investment is larger.
Embodiment
Below in conjunction with specific embodiment, the invention will be described further, and these descriptions are all illustrative, the present invention is not limited thereto.Scope of the present invention only limited by the scope of claims.
Remove the method that printing is bad, comprising: the cell body material of liquid formulations, cleaning method and set of time, contain fluid.
1. raw materials requirement
Raw materials requirement: with the salpeter solution of the EL rank of 70% concentration, with the hydrochloric acid solution of the EL rank of 37% concentration.With the sodium hydrate solid particle of EL rank.
2. cleaning method and set of time
Specific as follows:
The first step: remove aluminium, 1 groove NaOH adds 3 bottles of 500g/ bottles; 2 groove NaOH add 2 bottles of 500g/ bottles;
| Groove number | 1 | 2 | 3 | 4 |
| Solution | NaOH | NaOH | Deionized water | Deionized water |
[0024]?
| Temperature | 70℃ | 70℃ | Normal temperature | Normal temperature |
| Time | 1700S | 1700S | 600S | 600S |
Second step: remove silver, 1 groove HNO
3add 16 bottles of 4L/ buckets; 3 groove HCL add 7 bottles of 4L/ buckets;
| Groove number | 1 | 2 | 3 | 4 | 5 | 6 |
| Solution | Nitric acid | Deionized water | Hydrochloric acid | Deionized water | Deionized water | Deionized water |
| Temperature | Normal temperature | Normal temperature | Normal temperature | Normal temperature | Normal temperature | Normal temperature |
| Time | 2300S | 1200S | 1200S | 1200S | 1200S | 1200S |
3. the cell body material of contain fluid
Cell body material is the material of the acid and alkali-resistance materials such as PVDF.
The above elaborates content of the present invention.For persons skilled in the art, without departing from the premise in the spirit of the present invention to any apparent change that it does, all form the infringement to patent of the present invention, corresponding legal liabilities will be born.
Subordinate list:
Print and badly do not process 5000 income: 5000*5=25000 unit
Print bad process 5000 input:
Nitric acid: 26*16=416 unit; Hydrochloric acid: 19*7=133 unit; NaOH: 5*5=25 unit; Positive silver paste: 5000*9.6*0.14=6720 unit (positive silver paste monolithic consumes 0.14g); Back silver paste 5000*5*0.03=750 unit (back silver paste monolithic consumes 0.03g); Aluminium paste: 5000*0.105*1.6=840 unit (aluminium paste monolithic consumes 1.6g); Water power drops into be counted roughly: 500 yuan
Print achievement after bad process:
A sheet: 5000*95%=4750 sheet is taken in: 4750*9.6=45600 unit
B sheet: 5000*5%=250 sheet is taken in: 250*5=1250 unit
Cost-saving: 45600+1250-25000-416-133-25-6720-750-840-500=12466 unit
The bad process of printing 5000 Cost comparisons removed by table 1
Claims (3)
1. remove the method that printing is bad, comprising: the cell body material of liquid formulations, cleaning method and set of time, contain fluid.
2. this cleaning as claimed in claim 1, it is characterized in that, the acid solution in wherein said liquid formulations is HCL and HN0
3, alkali lye is NaOH, water is deionized water.
3. this cleaning as claimed in claim 2, it is characterized in that, the material that the cell body of wherein said contain fluid is used is PVDF material or other acid and alkali-resistance material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303738.0A CN104300030A (en) | 2013-07-18 | 2013-07-18 | Adverse-printing removal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303738.0A CN104300030A (en) | 2013-07-18 | 2013-07-18 | Adverse-printing removal method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104300030A true CN104300030A (en) | 2015-01-21 |
Family
ID=52319688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310303738.0A Pending CN104300030A (en) | 2013-07-18 | 2013-07-18 | Adverse-printing removal method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300030A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115207161A (en) * | 2022-07-14 | 2022-10-18 | 通威太阳能（安徽）有限公司 | Backwashing equipment |
-
2013
- 2013-07-18 CN CN201310303738.0A patent/CN104300030A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115207161A (en) * | 2022-07-14 | 2022-10-18 | 通威太阳能（安徽）有限公司 | Backwashing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103978021B (en) | A kind of useless crystal silicon solar energy battery plate method for disassembling and recycling | |
| CN103394484B (en) | Cleaning after polysilicon solar cell silicon chip processed with acid floss | |
| CN107321766A (en) | A kind of refuse battery piece recovery process | |
| CN103151423A (en) | Texturing and cleaning process method of polysilicon wafer | |
| CN201949783U (en) | Chlorine hydride tail gas absorber | |
| CN106012027B (en) | A kind of list polysilicon chain type soda acid one making herbs into wool and preparation method thereof | |
| CN102931290A (en) | Polycrystalline silicon solar cell reworking method without damaging suede | |
| CN201436683U (en) | Electrode structure of solar energy cell | |
| CN105047765A (en) | Rework technology used for passivated emitter reverse contact crystalline silicon solar cell | |
| CN101635319B (en) | Method for manufacturing back aluminium diffused N type solar cell | |
| CN104300030A (en) | Adverse-printing removal method | |
| CN101609862A (en) | A kind of method that reduces surface reflectivity of texture mono-crystalline silicon chip | |
| CN104716206B (en) | A kind of method of cell piece reworks conversion efficiency after raising coated with antireflection film | |
| CN105529380A (en) | Preparation method for single crystalline silicon solar cell piece with polished back surface | |
| CN204151415U (en) | A kind of regenerating alkaline etching liquid circulating production line | |
| CN102082209A (en) | Method for printing thin grid line of crystalline silicon solar cell through screen printing technology | |
| CN107359112B (en) | Manufacturing method of P-type double-sided crystalline silicon battery | |
| CN102945890B (en) | Process for implementing qualification of potential-induced decay of crystalline silicon battery assembly | |
| CN103258867B (en) | Front electrode of a kind of silicon solar cell and preparation method thereof | |
| CN202540939U (en) | Pre-screen-printing silicon chip cleaning device for solar batteries | |
| CN104701423A (en) | Method of making herbs into wool by novel mono-crystalline silicon slot type alkaline | |
| CN104835867A (en) | Novel silicon slice cleaning process single face acid corrosion texturing method | |
| CN104478151A (en) | Environment-friendly treatment method of caustic-soda-containing sodium hypochlorite waste liquor | |
| CN204732425U (en) | A kind of novel conductive adhesive tape solar module | |
| CN211027466U (en) | Battery material separation purification recovery unit among crystalline silicon photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhongkexin Electronic Equipment Co., Ltd., Beijing Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |