CN102244112A - Aluminium paste for silicon solar battery - Google Patents
Aluminium paste for silicon solar battery Download PDFInfo
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- CN102244112A CN102244112A CN2011102015262A CN201110201526A CN102244112A CN 102244112 A CN102244112 A CN 102244112A CN 2011102015262 A CN2011102015262 A CN 2011102015262A CN 201110201526 A CN201110201526 A CN 201110201526A CN 102244112 A CN102244112 A CN 102244112A
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Abstract
The invention provides aluminium paste for a silicon solar battery, which comprises the following materials: 1-3% of glass powder, 45-60% of first powered aluminum, 20-45% of second powered aluminium, 1-10% of powered aluminium alloy, 15-20% of first organic carrier, 21-5% of second organic carrier, 0.1-0.5% of dispersing agent, 0.1-0.5% of deforming agent and 0-1% of metallic oxide. The aluminium paste for the silicon solar battery, provided by the invention, has the advantages of being capable of preventing silicon slices from warping and alumina beads from forming after baking and having strong adhesive force.
Description
Technical field
The present invention relates to crystal silicon solar energy battery, particularly relate to a kind of composition of aluminum paste of silicon solar cells.
Background technology
In recent years, along with the growing tension of conventional energy resources such as coal, oil, natural gas, oneself is extremely urgent to develop reproducible new forms of energy, and various countries furnish a huge amount of money for to develop various new forms of energy one after another, this wherein the development of solar energy attract attention and with the fastest developing speed with solar cell especially the most.According to statistics, global solar battery industry 1994-2004 increased by 17 times in 10 years, and manufacture of solar cells mainly is distributed in Japan, Europe and the U.S..Domestic research to solar cell is started in 1958, and at present, oneself becomes the main manufacture of solar cells state in the whole world China.Because the Chinese government extremely payes attention to solar power generation.China is expected to as the U.S., can start a huge market.Solar energy power generating can occupy the important seat of world energy sources consumption in the near future, not only will substitute the part conventional energy resource, and will become the main body of world energy supplies.
Undoubtedly, be accompanied by shooting up of photovoltaic industry, also will increase sharply to the demand of electric slurry, especially the thick-film electronic aluminium paste of high temperature sintering type, be the main slurry that present electrode of solar battery uses, the market demand of following thick-film electronic slurry product will enlarge day by day.
Aluminium paste is made up of aluminium powder, glass dust, organic bond and additive etc.Wherein aluminium powder is a conductive phase, organic bond is as a kind of carrier, pressed powders such as aluminium powder in the aluminium paste, glass dust, additive are uniformly dispersed, make the aluminium paste slurry evenly coat the silicon chip back side during printing, and the consistency of assurance print thickness, after the drying aluminium powder and glass dust is attached on the silicon chip and do not come off, be carbonized behind the sintering, it is bonding with aluminium film and silicon substrate to leave over glass dust.The organic bond composition not only will have good dispersiveness to the pressed powder composition in the aluminium paste preferably, and phenomenons such as sticking net, figure be imperfect, in uneven thickness can not appear in printing process, need to make pressed powder to have good adhesion strength after the drying.Glass dust is as inorganic bond, and softening and fusion makes aluminium lamination and silicon chip that enough strong adhesion-tight degree be arranged under firing temperature, forms good Ohmic contact.In present aluminium paste technology, still silicon warp, poor adhesive force occur behind the existence printing sintering, fire situations such as afterwards forming the pill of aluminium.
Summary of the invention
The purpose of this invention is to provide a kind of silicon solar cell aluminium paste that prevents silicon warp, strong adhesion and prevent to fire the back formation pill of aluminium.
For achieving the above object, technical scheme provided by the invention is as follows: a kind of aluminum paste of silicon solar cells, forms by following material by mass parts: glass dust 1-3%, the first aluminium powder 45-60%, the second aluminium powder 20-35%, aluminium powder alloy 1-10%, the first organic carrier 15-20%, the second organic carrier 21-5%, dispersant 0.1-0.5%, defoamer 0.1-0.5%, reach metal oxide 0-1%.
Described glass dust is lead-free glass powder; First aluminium powder is a ball aluminum powder, and particle diameter is the 2-3 micron, purity＞99.5%; Second aluminium powder is a ball aluminum powder, and particle diameter is the 7-8 micron, purity＞99.5%; Aluminium powder alloy particle diameter is the 6-7 micron, metal purity＞99.9%.
Described first organic carrier is made up of following material by mass parts: ethyl cellulose STD-458-12% and butyl carbitol 88-92%; Second organic carrier is made up of following material by quality: rosin modified phenolic resin 10-15%, DBE 85-90%.
Described dispersant includes but not limited to Tego 610s, and Tego 710, and Tego 655, at least a among the Tego 700, and described defoamer includes but not limited to Tego 825, Tego 815N, at least a among the Tego986.Metal oxide is aluminium oxide or magnesium oxide.
The composition of above-mentioned aluminum paste of silicon solar cells uses three-roll grinder to be dispersed to fineness and gets final product less than 15 microns.
The present invention is directed to the deficiency that prior art exists, use big small particle diameter aluminium powder collocation, and the method for adding the aluminium powder alloy, the above-mentioned defective that exists in the prior art improved.Add rosin modified phenolic resin among the present invention as the organic bond component, not only and the wettability between the big small particle diameter aluminium powder good, and compatibility is preferably also arranged with the aluminium powder alloy, use with the ethyl cellulose collocation, in aluminium paste, exist as carrier or decentralized medium, give slurry suitable fluid property, its good burning mistake rate in sintering process, also make aluminium paste aspect electrical property, promote to some extent, and can prevent from silicon warp later and fire the back to form the pill of aluminium, and strong adhesion at sintering.
Embodiment
Embodiment 1
A kind of aluminum paste of silicon solar cells consists of by mass parts:
Wherein organic carrier 1 becomes by quality group: ethyl cellulose STD-4512%, butyl carbitol 88%; Organic carrier 2 becomes by quality group: rosin modified phenolic resin 15%, DBE85%.
Embodiment 2
A kind of aluminum paste of silicon solar cells consists of by mass parts:
Wherein organic carrier 1 becomes by quality group: ethyl cellulose STD-458%, butyl carbitol 92%; Organic carrier 2 becomes by quality group: rosin modified phenolic resin 12%, DBE88%.
Embodiment 3
A kind of aluminum paste of silicon solar cells consists of by mass parts:
Wherein organic carrier 1 becomes by quality group: ethyl cellulose STD-4510%, butyl carbitol 90%; Organic carrier 2 becomes by quality group: rosin modified phenolic resin 10%, DBE90%.
Embodiment 4
A kind of aluminum paste of silicon solar cells consists of by mass parts:
Wherein organic carrier 1 becomes by quality group: ethyl cellulose STD-459%, butyl carbitol 91%; Organic carrier 2 becomes by quality group: rosin modified phenolic resin 11%, DBE89%.
The execution mode that the above non-the present invention is whole or unique, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (5)
1. aluminum paste of silicon solar cells is characterized in that: this aluminum paste of silicon solar cells is made up of following material by mass parts: glass dust 1-3%, the first aluminium powder 45-60%, the second aluminium powder 20-35%, aluminium powder alloy 1-10%, the first organic carrier 15-20%, the second organic carrier 21-5%, dispersant 0.1-0.5%, defoamer 0.1-0.5%, reach metal oxide 0-1%.
2. aluminum paste of silicon solar cells according to claim 1 is characterized in that: described glass dust is lead-free glass powder; First aluminium powder is a ball aluminum powder, and particle diameter is the 2-3 micron, purity＞99.5%; Second aluminium powder is a ball aluminum powder, and particle diameter is the 7-8 micron, purity＞99.5%; Aluminium powder alloy particle diameter is the 6-7 micron, metal purity＞99.9%.
3. aluminum paste of silicon solar cells according to claim 1 is characterized in that: described first organic carrier is made up of following material by mass parts: ethyl cellulose STD-458-12% and butyl carbitol 88-92%; Second organic carrier is made up of following material by quality: rosin modified phenolic resin 10-15%, DBE 85-90%.
4. aluminum paste of silicon solar cells according to claim 1 is characterized in that: described dispersant comprises at least a among enlightening high score powder Tego 610s, Tego 710, Tego 655, the Tego 700; Described defoamer comprises at least a among the high defoamer Tego 825 of enlightening, Tego 815N, the Tego986; Described metal oxide is aluminium oxide or magnesium oxide.
5. aluminum paste of silicon solar cells according to claim 1 is characterized in that: the composition of above-mentioned aluminum paste of silicon solar cells uses three-roll grinder to be dispersed to fineness and gets final product less than 15 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110201526 CN102244112B (en) | 2011-07-19 | 2011-07-19 | Aluminium paste for silicon solar battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110201526 CN102244112B (en) | 2011-07-19 | 2011-07-19 | Aluminium paste for silicon solar battery |
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| CN102244112A true CN102244112A (en) | 2011-11-16 |
| CN102244112B CN102244112B (en) | 2013-11-06 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522141A (en) * | 2011-12-28 | 2012-06-27 | 彩虹集团公司 | Conducting aluminum paste for silicon solar cell and preparation method thereof |
| CN102522142A (en) * | 2011-12-28 | 2012-06-27 | 彩虹集团公司 | Conducting paste for silicon solar cell and preparation method thereof |
| CN103065702A (en) * | 2012-12-28 | 2013-04-24 | 东方电气集团东方汽轮机有限公司 | Crystalline silicon solar energy battery aluminium paste and preparation method thereof |
| CN103117109A (en) * | 2012-12-07 | 2013-05-22 | 蚌埠市智峰科技有限公司 | Lead-free solar cell silver aluminum copper powder mixed paste containing graphite powder |
| CN103514973A (en) * | 2012-06-25 | 2014-01-15 | 比亚迪股份有限公司 | Conductive slurry used for solar cell and method of preparing the same |
| CN103811100A (en) * | 2014-01-16 | 2014-05-21 | 北京林业大学 | Silicon solar cell back-surface field forming aluminum paste and preparation method thereof |
| CN105047250A (en) * | 2015-02-05 | 2015-11-11 | 长兴材料工业股份有限公司 | Aluminium paste composition and solar cell module using the composition |
| CN106098148A (en) * | 2016-08-26 | 2016-11-09 | 王泽陆 | A kind of solar cell conductive paste and preparation method thereof |
| CN116543948A (en) * | 2023-06-30 | 2023-08-04 | 浙江晶科新材料有限公司 | Silver-aluminum paste for N-type TOPCON solar cell and preparation method thereof |
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| CN101609847A (en) * | 2009-07-08 | 2009-12-23 | 西安交通大学苏州研究院 | Electrode of solar battery forms uses slurry |
| CN101621082A (en) * | 2009-07-28 | 2010-01-06 | 付天恩 | Aluminum conductive paste for silicon solar cell back surface field and preparation method thereof |
| CN101916610A (en) * | 2010-08-21 | 2010-12-15 | 常州盈德能源科技有限公司 | Back field aluminum paste composition of solar battery and preparation method thereof |
| CN101942281A (en) * | 2010-09-29 | 2011-01-12 | 彩虹集团公司 | Organic binding agent for back aluminum paste of silicon-based solar battery and preparation method thereof |
| CN102097154A (en) * | 2010-11-25 | 2011-06-15 | 长沙族兴金属颜料有限公司 | Back surface field aluminium paste for solar cells |
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- 2011-07-19 CN CN 201110201526 patent/CN102244112B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101609847A (en) * | 2009-07-08 | 2009-12-23 | 西安交通大学苏州研究院 | Electrode of solar battery forms uses slurry |
| CN101621082A (en) * | 2009-07-28 | 2010-01-06 | 付天恩 | Aluminum conductive paste for silicon solar cell back surface field and preparation method thereof |
| CN101916610A (en) * | 2010-08-21 | 2010-12-15 | 常州盈德能源科技有限公司 | Back field aluminum paste composition of solar battery and preparation method thereof |
| CN101942281A (en) * | 2010-09-29 | 2011-01-12 | 彩虹集团公司 | Organic binding agent for back aluminum paste of silicon-based solar battery and preparation method thereof |
| CN102097154A (en) * | 2010-11-25 | 2011-06-15 | 长沙族兴金属颜料有限公司 | Back surface field aluminium paste for solar cells |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522142A (en) * | 2011-12-28 | 2012-06-27 | 彩虹集团公司 | Conducting paste for silicon solar cell and preparation method thereof |
| CN102522141B (en) * | 2011-12-28 | 2013-11-06 | 彩虹集团公司 | Conducting aluminum paste for silicon solar cell and preparation method thereof |
| CN102522142B (en) * | 2011-12-28 | 2013-11-06 | 彩虹集团公司 | Conducting paste for silicon solar cell and preparation method thereof |
| CN102522141A (en) * | 2011-12-28 | 2012-06-27 | 彩虹集团公司 | Conducting aluminum paste for silicon solar cell and preparation method thereof |
| CN103514973B (en) * | 2012-06-25 | 2016-05-11 | 比亚迪股份有限公司 | Conductive paste for solar cell and preparation method thereof |
| CN103514973A (en) * | 2012-06-25 | 2014-01-15 | 比亚迪股份有限公司 | Conductive slurry used for solar cell and method of preparing the same |
| CN103117109A (en) * | 2012-12-07 | 2013-05-22 | 蚌埠市智峰科技有限公司 | Lead-free solar cell silver aluminum copper powder mixed paste containing graphite powder |
| CN103117109B (en) * | 2012-12-07 | 2016-05-11 | 蚌埠市智峰科技有限公司 | A kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder |
| CN103065702A (en) * | 2012-12-28 | 2013-04-24 | 东方电气集团东方汽轮机有限公司 | Crystalline silicon solar energy battery aluminium paste and preparation method thereof |
| CN103065702B (en) * | 2012-12-28 | 2016-04-20 | 东方电气集团东方汽轮机有限公司 | A kind of crystal silicon solar energy battery aluminium paste and preparation method thereof |
| CN103811100A (en) * | 2014-01-16 | 2014-05-21 | 北京林业大学 | Silicon solar cell back-surface field forming aluminum paste and preparation method thereof |
| CN105047250A (en) * | 2015-02-05 | 2015-11-11 | 长兴材料工业股份有限公司 | Aluminium paste composition and solar cell module using the composition |
| CN105047250B (en) * | 2015-02-05 | 2017-11-07 | 长兴材料工业股份有限公司 | Aluminum paste composition and the solar cell module using said composition |
| CN106098148A (en) * | 2016-08-26 | 2016-11-09 | 王泽陆 | A kind of solar cell conductive paste and preparation method thereof |
| CN116543948A (en) * | 2023-06-30 | 2023-08-04 | 浙江晶科新材料有限公司 | Silver-aluminum paste for N-type TOPCON solar cell and preparation method thereof |
| CN116543948B (en) * | 2023-06-30 | 2023-10-31 | 浙江晶科新材料有限公司 | Silver-aluminum paste for N-type TOPCON solar cell and preparation method thereof |
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| CN102244112B (en) | 2013-11-06 |
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