CN101556980B - Method for printing high-efficiency solar silicon chip battery - Google Patents
Method for printing high-efficiency solar silicon chip battery Download PDFInfo
- Publication number
- CN101556980B CN101556980B CN2009100309334A CN200910030933A CN101556980B CN 101556980 B CN101556980 B CN 101556980B CN 2009100309334 A CN2009100309334 A CN 2009100309334A CN 200910030933 A CN200910030933 A CN 200910030933A CN 101556980 B CN101556980 B CN 101556980B
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- China
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- metal film
- printing
- silver paste
- stainless steel
- silicon chip
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- 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
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Abstract
The invention relates to a method for printing a high-efficiency solar silicon chip cell, adopting silver paste and a mesh plate for printing. The method is characterized in that the silver paste has the viscosity of 250-350PS, the upper layer of the mesh plate is a stainless steel mesh, and the lower layer thereof is a patterned metal film; the stainless steel mesh is combined with the patternedmetal film by electroforming joint technology; the mesh plate with the stainless steel mesh combined with the patterned metal film is firstly fixed on a printing plate, and then printed with the silver paste having the viscosity of 250-350PS. The method adopts the mesh plate to replace the traditional PVA photosensitive film mesh plate, can be used for printing the silver paste with high viscositywithout the phenomenon of blocking mesh holes, and ensures the line width where the silver paste can be printed to be very small; after being solidified, the printed silver paste has the thickness of20-30mum, so that the transformation efficiency of heat energy of a solar cell can be dramatically increased to about 20% from about 17% at present.
Description
Technical field
The present invention relates to a kind of printing process of solar cell, specifically relate to a kind of printing process of high-efficiency solar silicon chip battery.Belong to technical field of solar batteries.
Background technology
Along with the continuous development of solar battery technology, industry has proposed higher specification requirement to aspects such as cell conversion efficiency and the reductions of solar energy cost.Even traditional solar cell typography constantly improves silver-colored pulp material or silk screen platemaking technology specification, but attempt to print out the solar battery sheet with following feature: the live width of anode by-pass (FINGER) is lower than 60um, FINGER silver slurry thickness is greater than 25um, transformation efficiency is greater than 19%, present typography has arrived the limit, can not satisfy people's requirement.Industry is needed a kind of defective that can overcome present common silk-screen printing technique badly, realizes the printing effect of narrow line thick film, promotes the printing process of solar cell transformation efficiency.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of silver slurry and special silk web plate of utilizing in conjunction with the printing process of the high-efficiency solar silicon chip battery of printing solar cell, improve printing precision and solar cell heat energy transformation efficiency.
For addressing the above problem, the present invention is achieved by the following technical solutions:
A kind of printing process of high-efficiency solar silicon chip battery, adopt silver slurry and silk screen plate printing, it is characterized in that described silver slurry is the silver slurry of 250～350Pa.S for viscosity, described silk screen plate upper strata is a stainless steel cloth, lower floor is the figure metal film, and stainless steel cloth combines by electroforming joining technique and figure metal film; To be fixed on the printed panel by the silk screen plate that stainless steel cloth and figure metal film combine earlier, and then printing viscosity is the silver slurry of 250～350Pa.S.
The printing process of aforesaid high-efficiency solar silicon chip battery is characterized in that the figure metal film that described figure metal film is an electrotyping forming.
The printing process of aforesaid high-efficiency solar silicon chip battery is characterized in that described figure metal film is nickel or nickel alloy metal film.
The invention has the beneficial effects as follows: the present invention adopts the silk screen plate of being made by stainless steel cloth and figure metal film to replace traditional PVA light-sensitive surface web plate, and figure metal film and stainless steel cloth are combined with the electroforming joining technique, can print full-bodied silver slurry, and plug wire mesh phenomenon does not take place, make silver-colored slurry can print to such an extent that live width is very little, silver slurry thickness after the printing can reach 20～30um behind overcuring, make solar cell face resistance Wr value reduce 3～5%, unit are current value Jsc value is by present 28mA/cm
2Be increased to 30mA/cm
2Thereby, battery heat energy transformation efficiency is significantly risen to about 20% by present about 17%.
Description of drawings
Fig. 1 is a manufacturing process flow diagram of the present invention.
Embodiment
Specifically introduce method of the present invention below in conjunction with accompanying drawing.
Fig. 1 is a manufacturing process flow diagram of the present invention, and as shown in the figure, the printing process of the high-efficiency solar silicon chip battery among the present invention adopts silver slurry and silk screen plate to print, and the silk screen plate upper strata among the present invention is a stainless steel cloth, and lower floor is the figure metal film.The present invention replaces photoresists with the figure metal film, the figure metal film adopts electrotyping forming, is nickel or nickel alloy metal film, combines by the electroforming joining technique with stainless steel cloth, can print high viscosity silver slurry and network blocking hole phenomenon does not take place, make silver-colored slurry can print to such an extent that live width is very little.It is the silver slurry of 250～350Pa.S that silver slurry among the present invention adopts viscosity, during printing silk screen plate is fixed on the printed panel, then the printed silver slurry.Silver after printing slurry thickness can reach 20～30um behind overcuring, the heat energy transformation efficiency that makes solar cell is brought up to of the present invention about 20% by present 17%, improved transformation efficiency greatly.
Use the present invention can greatly reduce the production cost of solar cell, improve printed pattern precision (in ± 5um), the FINGER live width is at 30～60um, height is at 20～30um, printed pattern is indeformable, do not break, breach not, and thickness is even, and technology controlling and process is simple.
The present invention is narrow line thick film screen printing method, adopts the figure metal film to replace the figure photoresists, and with the electroforming joining technique stainless steel cloth and metal film is cast to form and be one, satisfies the needs of narrow line thick film screen printing.Replace conventional P VA light-sensitive surface half tone with the silk screen version, can print full-bodied silver slurry and network blocking hole phenomenon does not take place, make silver-colored slurry can print to such an extent that live width is very little, silver slurry thickness after the printing can reach 20～30um behind overcuring, make solar cell face resistance Wr value reduce 3～5%, unit are current value Jsc value is by present 28mA/cm
2Be increased to 30mA/cm
2Thereby, battery heat energy transformation efficiency is significantly risen to about 20% by present about 17%.
The foregoing description does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (3)
1. the printing process of a high-efficiency solar silicon chip battery, adopt silver slurry and silk screen plate printing, it is characterized in that described silver slurry is the silver slurry of 250～350Pa.S for viscosity, described silk screen plate upper strata is a stainless steel cloth, lower floor is the figure metal film, and stainless steel cloth combines by electroforming joining technique and figure metal film; To be fixed on the printed panel by the silk screen plate that stainless steel cloth and figure metal film combine earlier, and then printing viscosity is the silver slurry of 250～350Pa.S.
2. the printing process of high-efficiency solar silicon chip battery according to claim 1 is characterized in that the figure metal film that described figure metal film is an electrotyping forming.
3. the printing process of high-efficiency solar silicon chip battery according to claim 1 and 2 is characterized in that described figure metal film is nickel or nickel alloy metal film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100309334A CN101556980B (en) | 2009-04-20 | 2009-04-20 | Method for printing high-efficiency solar silicon chip battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100309334A CN101556980B (en) | 2009-04-20 | 2009-04-20 | Method for printing high-efficiency solar silicon chip battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101556980A CN101556980A (en) | 2009-10-14 |
| CN101556980B true CN101556980B (en) | 2011-06-29 |
Family
ID=41175013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100309334A Expired - Fee Related CN101556980B (en) | 2009-04-20 | 2009-04-20 | Method for printing high-efficiency solar silicon chip battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101556980B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214725A (en) * | 2010-04-01 | 2011-10-12 | 无锡尚德太阳能电力有限公司 | Printing screen for solar cell and method for producing solar cell |
| CN102001241B (en) * | 2010-09-11 | 2012-02-08 | 浙江亚太特宽幅印染有限公司 | Method for solving printing blockage of gold and silver powder and sheets |
| 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 |
| CN103171244B (en) * | 2011-12-23 | 2015-06-10 | 昆山允升吉光电科技有限公司 | Method for manufacturing double-layer solar energy printing screen |
-
2009
- 2009-04-20 CN CN2009100309334A patent/CN101556980B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101556980A (en) | 2009-10-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20190420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |