CN101226969A - Fast peak sintering process for preparing solar battery - Google Patents
Fast peak sintering process for preparing solar battery Download PDFInfo
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- CN101226969A CN101226969A CNA2007100342719A CN200710034271A CN101226969A CN 101226969 A CN101226969 A CN 101226969A CN A2007100342719 A CNA2007100342719 A CN A2007100342719A CN 200710034271 A CN200710034271 A CN 200710034271A CN 101226969 A CN101226969 A CN 101226969A
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- combustion flue
- solar cell
- sintering process
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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
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention relates to a rapid spike sintering process for preparing a solar cell, which uses an infrared short wave heating light source to directionally radiate and heat, thereby achieving metallization fusion sintering. First, a sinter is rapidly sent into a heating combustion flue in a tunnel sintering combustion flue through a mesh belt, the outer portion of the heating combustion flue is equipped with a heat insulation fiber, infrared short wave heating lamps are up and down arranged on the mesh belt from, the heating combustion flue is separated into different temperature ranges by an isolate component, process gas is sent into various temperature ranges through an air tube and spray mouths which are arranged in each temperature range, after through a highest temperature area of the heating combustion flue, the sinter enters into a cool water channel whose inner portion is distributed with a pipe coil through the carrying of the fast-moving mesh belt to achieved rapid cooling, and the pipe coil is equipped with cool water. The invention provides the rapid spike sintering process for preparing the solar cell, which is capable of controlling the temperature, excellently achieving an instant high temperature status, reducing the making cost of an unit battery, and promoting the developing of a photovoltaic technology.
Description
Technical field
The present invention relates to a kind of quick high-temp peak sintering process, especially a kind of fast peak sintering process that is used to prepare solar cell.
Background technology
Along with the raising day by day of people's environmental consciousness, international, domestic to regenerative resource, particularly the demand to the development and use of solar energy is more and more stronger.The output of world's solar cell over more than 10 year in the past is one of industry with fastest developing speed in the world always with annual rapid growth 30% or more above semicon industry.Have at present 136 countries according to statistics in the world and drop in the upsurge of popularization and application solar cell, wherein have 95 countries carrying out the research and development of solar cell and correlation technique on a large scale.The regenerative resource bill of China is also formally passed through on February 28th, 2005, and solar energy is obtainable most important regeneration clean energy resource on the earth, and silicon solar cell is to obtain the most important photovoltaic of solar energy.
At present, silicon solar cell is the main product of manufacture of solar cells, and the output of crystal silicon solar energy battery accounts for more than 90% of world's solar cell total output.No matter be the P type substrate battery or the more good N type substrate battery of prospect of present large-scale production, all must be through a requisite key core technology-surface metal electrode Fast Sintering congruent melting so that metal electrode and silicon face diffusion layer form good Ohmic contact.The metallization process process is the technology that the most directly has influence on battery electrical property in the silicon solar cell production process, the quality of its sintering quality directly has influence on the photoelectric conversion efficiency of battery, the fill factor, curve factor of high-quality sintering process battery can reach more than 78%, conversion efficiency surpasses 17%, if and sintering quality is bad, battery efficiency descends more than 3 percentage points at least.
Very active to sintering process and mechanism research in the world at present, cooperate different sintering temperature curves at the different printing slurry, and then research and develop the agglomerating plant that adapts with it.But up to the present, academia also is not fully aware of to the mechanism of high temperature sintering metallization process process, the dispute that exists is also very many, but more and more studies show that: the metallization process process is very responsive to temperature, a temperature range of allowing is arranged comparatively speaking, but optimal temperature conditions is extremely harsh.The short pyroprocess of compole when needing one in the metallization sintering process; More and more thinner along with silicon cell thickness, requirement to high-temperature time becomes more and more harsher, sintering temperature and optimum temperature differ and surpass 5 ℃ of electrical properties that will obviously have influence on battery, employed agglomerating plant nearly all is import on the present domestic crystal silicon cell production line, and its reason is at present domestic exactly high-sintering process know-why and temperature and time also there is not fine grasp, can't effectively obtain the spike sintering temperature and the function of lowering the temperature rapidly fast, make the electrical property of battery sheet be subjected to very big influence.
Summary of the invention
The objective of the invention is at above technological deficiency, a kind of fast peak sintering process that is used to prepare solar cell is provided, can grasp temperature, can well realize the moment condition of high temperature, reduce the manufacturing cost of unit cells, promote the development of photovoltaic technology.
The solution that the present invention adopts is, the described fast peak sintering process that is used to prepare solar cell is, utilize infrared shortwave heated light sources directed radiation heating, realize the metallization clinkering, thing to be sintered is sent into heating combustion flue in the tunneled sintering kiln road fast by guipure, heating combustion flue outside is heat insulation fiber, the guipure infrared shortwave heating fluorescent tube that has been arranged above and below, the heating combustion flue is isolated into different warm areas by barrier assembly, and send into process gas to each warm area by snorkel and the built-in spray nozzle of each warm area, after the highest temperature district of thing to be sintered through the heating combustion flue, guipure delivery by rapid movement, enter water-cooled tunnel that inside is distributed with coil pipe to realize fast cooling, be connected with cooling water in the coil pipe.
Between heating combustion flue and the water-cooled tunnel sealing rubber pad is arranged in the described tunneled sintering kiln road.
Described guipure drives operation by the quartzy trustship under its quartzy supporting plate in bottom.
Described process gas is gone in the tunneled sintering kiln road by flow-harmonization device and then even pouring earlier before entering the tunneled sintering kiln road.
Isolate by gas curtain between heating combustion flue and the water-cooled tunnel.
Described coil pipe is the copper coil pipe of outer alclad pool, and the cooling water that its inside is connected with is 15 ℃ of cycling use of waters.
Described barrier assembly adopts the refractory ceramics plate of thick 25mm to separate, and the slot that the centre has high 60mm, wide 500mm carries thing to be sintered from passing through therebetween for guipure.
Design principle of the present invention is described below: utilize infrared shortwave heated light sources directed radiation heating, realize the metallization clinkering, thing to be sintered (12) is sent into heating combustion flue (2) in the tunneled sintering kiln road (1) fast by guipure (5), in order to prevent the heat distribution loss, heating combustion flue (2) outside is heat insulation fiber (4), and middle guipure (5) is driven by the quartzy trustship (8) under its quartzy supporting plate in bottom (10) and moves ahead.Described guipure (5) the infrared shortwave heating fluorescent tube (6) that has been arranged above and below, to positive and negative two heat-agglomeratings simultaneously of product, pre-set according to temperature required with spacing between the upper and lower about the wavelength of described infrared shortwave heating fluorescent tube (6) and fluorescent tube, to guarantee the uniformity of section temperature; Heating combustion flue (2) is isolated into the different warm areas that heat up gradually by barrier assembly (7), has slot in the middle of the described barrier assembly (7) and carries thing to be sintered (12) from passing through therebetween for guipure (5).Thermocouple (11) is inserted into heating combustion flue (2) temperature in the combustion flue is monitored in real time from the top, in addition owing to contain many organic solvents in the thing to be sintered, therefore different warm areas also are connected with the process gas of being sent into by the spray nozzle (16) of snorkel (9), inflammable organic substance is burnt, and remaining discharges the tunnel by exhaust outlet (15).The process gas of wherein sending into evenly sprays in the tunnel by flow-harmonization device earlier before entering heating combustion flue inside in order to prevent the cold conditions effect again, has guaranteed that the uniformity of temperature can not be affected in the tunnel.Because in order to obtain spike temperature fast, also must having rapidly except heating up rapidly, cooling could realize, so thing to be sintered (12) is through the highest temperature district of heating combustion flue (2), after being last warm area, guipure (5) by rapid movement delivers again, enter the water-cooled tunnel (3) of copper coil pipe (13) that inside is distributed with outer alclad pool to realize fast cooling, be connected with cooling water in the described copper coil pipe (13).Because it is rapid movement in the tunnel body of heater that guipure carries sinter,, isolate by gas curtain between heating combustion flue (2) and water-cooled tunnel (3) in order to prevent that the hot gas in the high-temperature region from being taken out of.Heating combustion flue (2) has sealing rubber pad (14) with junction, water-cooled tunnel (3).This isolation prevents that not only the gas with foreign flavor that the sintering zone contains the metal paste organic solvent from distributing in operation room, guarantees that also product carries out sintering under a metastable environment, make equipment more energy-conservation simultaneously.
The described fast peak sintering process that is used to prepare solar cell provided by the invention can be good at having realized the moment condition of high temperature, has reduced the manufacturing cost of unit cells, has promoted the development of photovoltaic technology.
Description of drawings
Fig. 1 is integral body (analysing and observe) structural representation of device therefor of the present invention;
Fig. 2 is that the B-B of device shown in Figure 1 is to view;
Fig. 3 is the vertical view of equipment shown in Figure 1.
In the accompanying drawings:
1-tunneled sintering kiln road 2-heats combustion flue
The heat insulation fiber of 3-water-cooled tunnel 4-
The infrared shortwave heating of 5-guipure 6-fluorescent tube
The quartzy trustship of 7-barrier assembly 8-
The quartzy supporting plate of 9-snorkel 10-
11-thermocouple 12-thing to be sintered
13-coil pipe 14-sealing rubber pad
15-exhaust outlet 16-spray nozzle
Embodiment:
Claims (7)
1. fast peak sintering process that is used to prepare solar cell, utilize infrared shortwave heated light sources directed radiation heating, realize the metallization clinkering, it is characterized in that, thing to be sintered (12) is sent into heating combustion flue (2) in the tunneled sintering kiln road (1) fast by guipure (5), heating combustion flue (2) outside is heat insulation fiber (4), guipure (5) the infrared shortwave heating fluorescent tube (6) that has been arranged above and below, heating combustion flue (2) is isolated into different warm areas by barrier assembly (7), and send into process gas to each warm area by snorkel (9) and the built-in spray nozzle (16) of each warm area, after the highest temperature district of thing to be sintered (12) through heating combustion flue (2), guipure (5) delivery by rapid movement, enter water-cooled tunnel (3) that inside is distributed with coil pipe (13) to realize fast cooling, described coil pipe is connected with cooling water in (13).
2. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that between heating combustion flue (2) and water-cooled tunnel (3) sealing rubber pad (14) being arranged in the described tunneled sintering kiln road (1).
3. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that described guipure (5) drives operation by the quartzy trustship (8) under its quartzy supporting plate in bottom (10).
4. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that described process gas is entering heating combustion flue (2) preceding elder generation by flow-harmonization device and then evenly drench to go into to heat in the combustion flue (2).
5. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that, isolate by gas curtain between heating combustion flue (2) and water-cooled tunnel (3).
6. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that described coil pipe (13) is the copper coil pipe of outer alclad pool, the cooling water that its inside is connected with is 15 ℃ of cycling use of waters.
7. according to the described fast peak sintering process that is used to prepare solar cell of claim 1, it is characterized in that, described barrier assembly (7) adopts the refractory ceramics plate of thick 25mm to separate, and the slot that the centre has high 60mm, wide 500mm carries thing to be sintered (12) from passing through therebetween for guipure (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710034271A CN101226969B (en) | 2007-01-16 | 2007-01-16 | Fast peak sintering process for preparing solar battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710034271A CN101226969B (en) | 2007-01-16 | 2007-01-16 | Fast peak sintering process for preparing solar battery |
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| CN101226969A true CN101226969A (en) | 2008-07-23 |
| CN101226969B CN101226969B (en) | 2010-05-19 |
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| CN200710034271A Expired - Fee Related CN101226969B (en) | 2007-01-16 | 2007-01-16 | Fast peak sintering process for preparing solar battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839637A (en) * | 2009-03-17 | 2010-09-22 | Tdk株式会社 | Continuous fritting furnace and manufacturing system |
| CN102237449A (en) * | 2011-06-29 | 2011-11-09 | 上海久能能源科技发展有限公司 | Method for sintering solar photovoltaic cell film |
| CN102306621A (en) * | 2011-08-25 | 2012-01-04 | 上海煦康电子科技有限公司 | Process method for sintering semiconductor element |
| CN102878802A (en) * | 2012-08-30 | 2013-01-16 | 山东海友工贸有限公司 | Tunnel stepping mesh belt calcining furnace for calcining high-purity quartz ore |
| CN103035781A (en) * | 2012-12-27 | 2013-04-10 | 衡水英利新能源有限公司 | Solar cell sintering method based on Despatch sintering furnace |
| CN109585603A (en) * | 2018-12-03 | 2019-04-05 | 江苏中宇光伏科技有限公司 | A kind of cell piece high temperature sintering molding technique |
| CN110243172A (en) * | 2019-06-24 | 2019-09-17 | 肇庆华鑫隆自动化设备有限公司 | A kind of lithium battery material sintering roller furnace |
| CN112549757A (en) * | 2020-12-16 | 2021-03-26 | 东莞市华芯联科技有限公司 | Batch production equipment and process for ceramic piezoresistive sensors |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322594C (en) * | 2003-12-09 | 2007-06-20 | 清华大学 | Thin-film solar cell substrate preparing technology |
| DE102005005808A1 (en) * | 2005-02-09 | 2006-08-10 | Centrotherm Elektrische Anlagen Gmbh & Co. Kg | Manufacturing method for silicon solar cells by coating at least on one side, of pre-doped silicon wafers with aluminium paste, followed by decomposing of organic paste components |
-
2007
- 2007-01-16 CN CN200710034271A patent/CN101226969B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839637A (en) * | 2009-03-17 | 2010-09-22 | Tdk株式会社 | Continuous fritting furnace and manufacturing system |
| CN101839637B (en) * | 2009-03-17 | 2013-01-09 | Tdk株式会社 | Continuous sintering furnace and manufacturing system |
| CN102237449A (en) * | 2011-06-29 | 2011-11-09 | 上海久能能源科技发展有限公司 | Method for sintering solar photovoltaic cell film |
| CN102306621A (en) * | 2011-08-25 | 2012-01-04 | 上海煦康电子科技有限公司 | Process method for sintering semiconductor element |
| CN102878802A (en) * | 2012-08-30 | 2013-01-16 | 山东海友工贸有限公司 | Tunnel stepping mesh belt calcining furnace for calcining high-purity quartz ore |
| CN103035781A (en) * | 2012-12-27 | 2013-04-10 | 衡水英利新能源有限公司 | Solar cell sintering method based on Despatch sintering furnace |
| CN103035781B (en) * | 2012-12-27 | 2016-06-01 | 衡水英利新能源有限公司 | A kind of solar cell sintering method based on Despatch sintering oven |
| CN109585603A (en) * | 2018-12-03 | 2019-04-05 | 江苏中宇光伏科技有限公司 | A kind of cell piece high temperature sintering molding technique |
| CN110243172A (en) * | 2019-06-24 | 2019-09-17 | 肇庆华鑫隆自动化设备有限公司 | A kind of lithium battery material sintering roller furnace |
| CN112549757A (en) * | 2020-12-16 | 2021-03-26 | 东莞市华芯联科技有限公司 | Batch production equipment and process for ceramic piezoresistive sensors |
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| CN101226969B (en) | 2010-05-19 |
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Assignee: Jiangsu Risun Solar Energy Co.,Ltd. Assignor: No.48 Inst. China Electronics Tech Group Contract record no.: 2011360000079 Denomination of invention: Fast peak sintering process for preparing solar battery Granted publication date: 20100519 License type: Exclusive License Open date: 20080723 Record date: 20110701 |
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Granted publication date: 20100519 Termination date: 20140116 |