CN101814551B - The preparation method of back silver paste of solar cell - Google Patents
The preparation method of back silver paste of solar cell Download PDFInfo
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- CN101814551B CN101814551B CN201010022844.8A CN201010022844A CN101814551B CN 101814551 B CN101814551 B CN 101814551B CN 201010022844 A CN201010022844 A CN 201010022844A CN 101814551 B CN101814551 B CN 101814551B
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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
Abstract
The present invention relates to a kind of preparation method of back silver paste of solar cell, comprising: 200CP ethyl cellulose, 300CP ethyl cellulose and butyl are mixed to get bonding system by (1); (2) flake silver powder and glass dust are mixed to get powder; (3) butyl and terpinol are mixed to get diluent; (4) mix above-mentioned adhesive and powder, through three-high mill, adjustment fineness, adds above-mentioned diluent, namely obtains silver paste.The inventive method is simple, is suitable for suitability for industrialized production; The silver paste silver layer compactness of gained is good, and contact resistance is little, and cell conversion rate is high.
Description
Technical field
The invention belongs to the preparation field of solar cell size, particularly relate to a kind of preparation method of back silver paste of solar cell.
Background technology
Back silver paste of solar cell is one of important raw and processed materials of solar cell as the back silver slurry of solar cell size, affects the key factor of solar cell power conversion.This slurry mainly contains function phase (silver powder), organic carrier (adhesive), glassy phase three major part composition.
Growing along with green energy resource, photovoltaic industry is advanced by leaps and bounds, and the development of solar cell industry has welcome unprecedented prospect, simultaneously also more and more higher to the slew rate requirement of solar cell.The exploitation of Ben Yin slurry is researched and developed the development of silver paste of solar cells both at home and abroad in order to meet.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of back silver paste of solar cell, and the method is simple, is suitable for suitability for industrialized production; The silver paste silver layer compactness of gained is good, and contact resistance is little, and cell conversion rate is high.
The preparation method of a kind of back silver paste of solar cell of the present invention, comprising:
(1) 200CP ethyl cellulose, 300CP ethyl cellulose and butyl is mixed, preparation adhesive;
(2) flake silver powder and glass dust is mixed, preparation powder;
(3) butyl and terpinol is mixed, prepared and diluted agent;
(4) mix the adhesive of 10 ~ 20% and the powder of 75 ~ 85%, through three-high mill, adjustment fineness, adds the diluent of 1 ~ 5%, namely obtains silver paste.
The weight ratio of described step (1) 200CP ethyl cellulose, 300CP ethyl cellulose and butyl is 4% ~ 8%: 2% ~ 6%: 70% ~ 90%.
The weight ratio of described step (2) flake silver powder and glass dust is 85% ~ 95%: 5% ~ 15%.
The weight ratio of described step (3) butyl and terpinol is 50% ~ 70%: 30% ~ 50%.
Described step (4) fineness is less than 8 μm.
Beneficial effect
(1) preparation method of the present invention is simple, is suitable for suitability for industrialized production;
(2) the silver paste silver layer compactness of gained of the present invention is good, and contact resistance is little, and cell conversion rate is high.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
(1) 200CP ethyl cellulose 2 ~ 4g, 300CP ethyl cellulose 1 ~ 3g, butyl 10 ~ 30g is mixed, preparation bonding system;
(2) flake silver powder 70 ~ 75g, glass dust 5 ~ 10g is mixed, preparation powder, after stirring evenly, ball milling 3-5 hour;
(3) butyl 4 ~ 8g, terpinol 2 ~ 4g is mixed, prepared and diluted agent;
(4) mix above-mentioned adhesive and powder, be less than 8 μm through three-high mill to fineness, add diluent, stir 1 hour, by a small amount of diluent adjustment viscosity, make silver slurry.
Claims (5)
1. a preparation method for back silver paste of solar cell, is characterized in that:
(1) 200CP ethyl cellulose, 300CP ethyl cellulose and butyl is mixed, preparation adhesive;
(2) flake silver powder and glass dust is mixed, preparation powder;
(3) butyl and terpinol is mixed, prepared and diluted agent;
(4) mix the adhesive of 10 ~ 20% and the powder of 75 ~ 85%, through three-high mill, adjustment fineness, adds the diluent of 1 ~ 5%, namely obtains silver paste.
2. the preparation method of a kind of back silver paste of solar cell according to claim 1, it is characterized in that: the weight ratio of described step (1) 200CP ethyl cellulose, 300CP ethyl cellulose and butyl is 4% ~ 8%:2% ~ 6%:70% ~ 90%, and its weight ratio summation is 100%.
3. the preparation method of a kind of back silver paste of solar cell according to claim 1, is characterized in that: the weight ratio of described step (2) flake silver powder and glass dust is 85% ~ 95%:5% ~ 15%.
4. the preparation method of a kind of back silver paste of solar cell according to claim 1, is characterized in that: the weight ratio of described step (3) butyl and terpinol is 50% ~ 70%:30% ~ 50%.
5. the preparation method of a kind of back silver paste of solar cell according to claim 1, is characterized in that: described step (4) fineness is less than 8 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010022844.8A CN101814551B (en) | 2010-01-15 | 2010-01-15 | The preparation method of back silver paste of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010022844.8A CN101814551B (en) | 2010-01-15 | 2010-01-15 | The preparation method of back silver paste of solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101814551A CN101814551A (en) | 2010-08-25 |
| CN101814551B true CN101814551B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010022844.8A Expired - Fee Related CN101814551B (en) | 2010-01-15 | 2010-01-15 | The preparation method of back silver paste of solar cell |
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| Country | Link |
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| CN (1) | CN101814551B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360628B (en) * | 2011-09-22 | 2013-04-17 | 山东省科学院新材料研究所 | Method for preparing silver paste used for back electrode of photovoltaic cell |
| CN102592748A (en) * | 2012-02-13 | 2012-07-18 | 江苏瑞德新能源科技有限公司 | Process for producing silver aluminum slurry for solar energy battery |
| CN102810344B (en) * | 2012-08-03 | 2014-12-31 | 江苏欧耐尔新型材料有限公司 | Silver-plated copper containing paste for solar cell back electrode and method for preparing silver-plated copper containing paste |
| CN103617843A (en) * | 2013-11-29 | 2014-03-05 | 江苏瑞德新能源科技有限公司 | Method for producing back silver paste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877864A (en) * | 2006-06-30 | 2006-12-13 | 谭富彬 | Aluminum back-surface-field conductive paste composition in silicon solar cell and method for preparing same |
| CN101206958A (en) * | 2007-12-07 | 2008-06-25 | 宁波晶鑫电子材料有限公司 | Preparation of hyperthermia drying wafer capacitance electrode silver plasm |
| CN101206957A (en) * | 2007-12-07 | 2008-06-25 | 宁波晶鑫电子材料有限公司 | Preparation of low temperature drying wafer capacitance electrode silver plasm |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295739B (en) * | 2007-04-26 | 2010-09-29 | 比亚迪股份有限公司 | Conductive slurry for solar battery front side electrode and production method thereof |
| KR101352786B1 (en) * | 2007-05-09 | 2014-01-15 | 주식회사 동진쎄미켐 | Paste for producing electrode of solar cell |
| US7833439B2 (en) * | 2007-07-24 | 2010-11-16 | Ferro Corporation | Ultra low-emissivity (ultra low E) silver coating |
| WO2009052141A1 (en) * | 2007-10-18 | 2009-04-23 | E. I. Du Pont De Nemours And Company | Conductive compositions and processes for use in the manufacture of semiconductor devices |
| CN101471389B (en) * | 2007-12-25 | 2012-10-10 | 国硕科技工业股份有限公司 | Solar battery |
| CN101345263B (en) * | 2008-09-09 | 2010-06-16 | 季福根 | Leadless electronic slurry composition for solar silicon photovoltaic cell and preparation method thereof |
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2010
- 2010-01-15 CN CN201010022844.8A patent/CN101814551B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877864A (en) * | 2006-06-30 | 2006-12-13 | 谭富彬 | Aluminum back-surface-field conductive paste composition in silicon solar cell and method for preparing same |
| CN101206958A (en) * | 2007-12-07 | 2008-06-25 | 宁波晶鑫电子材料有限公司 | Preparation of hyperthermia drying wafer capacitance electrode silver plasm |
| CN101206957A (en) * | 2007-12-07 | 2008-06-25 | 宁波晶鑫电子材料有限公司 | Preparation of low temperature drying wafer capacitance electrode silver plasm |
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| CN101814551A (en) | 2010-08-25 |
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Effective date of registration: 20151221 Address after: 315048 No. 374, Holly Road, hi tech Zone, Zhejiang, Ningbo Patentee after: Ningbo's electric Mstar Technology Ltd Address before: 315823 No. 35, West Mount Lu Road, Beilun Science Park, Ningbo, Zhejiang Patentee before: Ningbo Jingxin Electronic Material Co., Ltd. |
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Granted publication date: 20150812 Termination date: 20180115 |