CN103117109B - A kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder - Google Patents
A kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder Download PDFInfo
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- CN103117109B CN103117109B CN201210521986.8A CN201210521986A CN103117109B CN 103117109 B CN103117109 B CN 103117109B CN 201210521986 A CN201210521986 A CN 201210521986A CN 103117109 B CN103117109 B CN 103117109B
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Abstract
The invention discloses a kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, it is to be made by the raw material of following weight parts: A expects 60-65, and B expects 20-25, C expects 10-15, repefral 2-3, graphite powder 0.3-0.6, organic silicone oil: 0.5-1. The leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder of gained of the present invention is not leaded, meet environmental requirement completely, be applied to the production of solar cell, can form strong adhesion in solar cell surface, cell photoelectric conversion efficiency is high, silver powder and the aluminium of different-grain diameter have been selected simultaneously, copper powder, increases interparticle contact area, thereby has improved the conductive capability of silver-colored slurry.
Description
Technical field
The present invention relates to fine Electronic field of chemicals, is exactly a kind of lead free solar cell that contains graphite powderSilver aluminum bronze powder mixed slurry.
Background technology
Electrocondution slurry is electronic devices and components encapsulation, electrode and interconnected critical material, mainly comprises that burning infiltration type contains graphiteThe leadless solar battery silver aluminum bronze powder mixed slurry of powder and the large class of curing type conducting resinl (electrically conductive ink) two.
Burning infiltration type electrocondution slurry is mainly used in the industries such as solar cell, makes electrode and use after sintering, and curing type is ledElectricity ink is widely used in the industry such as printed circuit and Electronic Packaging.
Electrocondution slurry basis filler difference wherein, can be divided into carbon slurry (graphite conductor), metal paste (goldPowder, silver powder, copper powder, yellow gold), and the ceramic size of modification.
, the electric conductivity of noble metal filler is best for Performance Ratio, and carbon slurry secondly. But the price of gold is too high, the oxytolerant of copper powderVoltinism is bad, and silver powder and silver-bearing copper powder are comparatively balanced in price and performance. Will getting well of the wearability silver slurry of carbon slurry.Solar cell conductive paste is made up of silver powder, aluminium powder, inorganic bond material, organic carrier and relevant auxiliary agent etc.In most electric slurry, inorganic bond material is mainly the flint glass powder of low melting point, environmental pollutionLarge and weldability is poor is its major defect. Therefore, the unleaded inexorable trend that become of electrocondution slurry.
Summary of the invention
The object of the present invention is to provide a kind of efficient, environmental protection, the unleaded leadless solar battery silver that contains graphite powderAluminum bronze powder mixed slurry.
Above-mentioned purpose realizes by following scheme:
A leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, is characterized in that, it is by followingThe raw material of weight portion makes: A expects 60-65, and B expects 20-25, and C expects 10-15, repefral 2-3,Graphite powder 0.3-0.6, organic silicone oil: 0.5-1;
Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 45-48,11-15 μ m silver powder 10-15,30-60nm silver powder 10-15,1-5 μ m glass dust 8-12, organic carrier A15-20, Silane coupling agent KH5500.8-1.2；
Described B material is made by the raw material of following weight parts: 6-10 μ m aluminium powder 55-58,1-5 μ m aluminium powder 10-15,20-25 μ m glass dust 8-10, organic carrier B15-20;
Described C material is made by the raw material of following weight parts: 11-15 μ m copper powder 50-55,30-60nm copper powder 5-10,10-15 μ m glass dust 6-8, organic carrier C18-20;
Described glass dust is made by the raw material of following weight parts: zinc oxide 2-4, iron oxide 3-5, potassium oxide 4-5,Titanium dioxide 8-10, chrome green 6-8, calcium oxide 8-10, manganese dioxide 3-5, ceria 3-5, threeBe oxidized two boron 9-12, silica 20-25;
Described organic carrier A is made by the raw material of following weight parts: methylcellulose 8-10, and calcium stearate 1.8-3.6,Isopropyl alcohol 38-42.
Described organic carrier B is made by the raw material of following weight parts: octyl phenol urea formaldehyde 2031-2, vinyl chloride vinegarAcid ethene 10-12, solvent DBE15-20, methyl iso-butyl ketone (MIBK) 9.8-10.8.
Described organic carrier C is made by the raw material of following weight parts: abietic resin 8-10, ethylene glycol ether20-25, dimethyl succinate 6-8.
Described a kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, is characterized in that:
Preparation method comprises the following steps:
(1) take by weight and prepare the required each raw material of glass dust and put in silica crucible and mix, after put into electric furnaceIn 1100-1300 DEG C of sintering 25-35min, then the glass metal after gained fusing is poured in cold water, then ball milling,Cross 200-300 mesh sieve, cooling, then at 600-700 DEG C of insulation 5-6 hour, then, then quench by deionized waterFire, ball milling, crosses the sieve of different meshes, collect and obtain 1-5 μ m glass dust respectively, 10-15 μ m glass dust and20-25 μ m glass dust, then use respectively 10-15% salt acid soak 1-2 hour, then clean extremely by deionized waterNeutrality, dries to such an extent that the glass dust of different-grain diameter is for subsequent use;
(2) by weight calcium stearate, isopropyl alcohol are mixed, after at 75-80 DEG C, add methylcellulose, moltenAfter stirring after solution, obtain organic carrier A for subsequent use;
(3) after by weight solvent DBE, methyl iso-butyl ketone (MIBK) being mixed, at 81-85 DEG C, add octyl group phenolic aldehydeAfter resin 203 dissolves, then add vinyl chloride vinyl acetate to dissolve, after stir, obtain organic carrier BFor subsequent use;
(4) by weight ethylene glycol ether, dimethyl succinate mixed afterwards, at 84-86 DEG C, add rosin treeAfter liposoluble solution, stir and to obtain organic carrier C for subsequent use;
(5) glass dust of the prepared 1-5 μ of step (1) m is added by weight to step (2) is prepared to be hadIn machine carrier A, stir and mix, then added by weight successively 1-5 μ m silver powder, 11-15 every 20-30 minuteμ m silver powder, 30-60nm silver powder, Silane coupling agent KH550, be uniformly mixed 3-5 hour, obtains A material;
(6) the prepared 20-25 μ of step (1) m glass dust is added to the prepared organic carrier B of step (3)In, stir mixed, more every minor tick 30-40 minute add successively 6-10 μ m aluminium powder, 1-5 μ m aluminium powder,Be uniformly mixed 2-3 hour, obtain B material;
(7) the prepared 10-15 μ of step (1) m glass dust is added to the prepared organic carrier C of step (4)In, stir mixedly, more every minor tick 30-40 minute adds 11-15 μ m copper powder successively, 30-60nm copper powder,Be uniformly mixed 2-3 hour, obtain C material;
(8) the leadless solar battery silver aluminum bronze that A material, B material, C material and all the other preparations is contained to graphite powderThe raw material of powder mixes by weight, and ball milling is ground to slurry fineness and is less than 10 μ m, adjusts viscosity, and viscosity is120-200Pas, to obtain final product.
Beneficial effect of the present invention is:
1, the leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder of gained of the present invention is not leaded, completely symbolCyclization guaranteed request, is applied to the production of solar cell, can form strong adhesion, electricity in solar cell surfacePond photoelectric transformation efficiency is high, has selected the silver powder of different-grain diameter and aluminium, copper powder simultaneously, increases interparticle contactArea, thus the conductive capability of silver-colored slurry improved;
2, the present invention in the leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, added copper powder,Aluminium powder can contribute to reduce silver slurry production cost, saves a large amount of noble silvers, improves the conduction of silver slurry simultaneouslyPerformance, thus reach the object that reduces solar cell manufacturing cost, obtain good economic benefit. WithTime technique of the present invention simple, cost is low, thereby has broad application prospects.
Detailed description of the invention
A leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, it is by following weight parts (kg)Raw material make: A material 65, B material 23, C material 15, repefral 2, graphite powder 0.4, hasMachine silicone oil: 0.7;
Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 45,11-15 μ m silver powder 15,30-60nm silver powder 10,1-5 μ m glass dust 12, organic carrier A20, Silane coupling agent KH550 1.2;Described B material is made by the raw material of following weight parts: 6-10 μ m aluminium powder 58,1-5 μ m aluminium powder 13,20-25μ m glass dust 10, organic carrier B20;
Described C material is made by the raw material of following weight parts: 11-15 μ m copper powder 55,30-60nm copper powder 5,10-15μ m glass dust 8, organic carrier C18;
Described glass dust is made by the raw material of following weight parts: zinc oxide 4, iron oxide 5, potassium oxide 4, dioxyChange titanium 10, chrome green 8, calcium oxide 10, manganese dioxide 3, ceria 3, diboron trioxide 12,Silica 25;
Described organic carrier A is made by the raw material of following weight parts: methylcellulose 10, and calcium stearate 3.2, differentPropyl alcohol 40.
Described organic carrier B is made by the raw material of following weight parts: octyl phenol urea formaldehyde 2031.3, vinyl chlorideVinyl acetate 12, solvent DBE20, methyl iso-butyl ketone (MIBK) 9.8.
Described organic carrier C is made by the raw material of following weight parts: abietic resin 9, and ethylene glycol ether 24,Dimethyl succinate 8.
Described a kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, preparation method comprises followingStep:
(1) take by weight and prepare the required each raw material of glass dust and put in silica crucible and mix, after put into electric furnaceIn 1300 DEG C of sintering 28min, then the glass metal after gained fusing is poured in cold water, then ball milling, crosses 300Mesh sieve, cooling, then 600 DEG C insulation 5 hours, then, then with deionized water quench, ball milling, excessively differentThe sieve of order number, collects and obtains 1-5 μ m glass dust respectively, 10-15 μ m glass dust and 20-25 μ m glass dust,Use respectively again 12% salt acid soak 1 hour, then clean to neutrality by deionized water, dry to obtain different-grain diameterGlass dust is for subsequent use;
(2) by weight calcium stearate, isopropyl alcohol are mixed, after at 80 DEG C, add methylcellulose, dissolveAfter stir after, obtain organic carrier A for subsequent use;
(3), after by weight solvent DBE, methyl iso-butyl ketone (MIBK) being mixed, at 85 DEG C, add octyl group phenolic aldehyde treeAfter fat 203 dissolves, then add vinyl chloride vinyl acetate to dissolve, after stir, obtain organic carrier B standbyWith;
(4) by weight ethylene glycol ether, dimethyl succinate mixed afterwards, at 86 DEG C, add abietic resinAfter dissolving, stir and to obtain organic carrier C for subsequent use;
(5) glass dust of the prepared 1-5 μ of step (1) m is added by weight to step (2) is prepared to be hadIn machine carrier A, stir and mix, then added by weight successively 1-5 μ m silver powder, 11-15 every 30 minutesμ m silver powder, 30-60nm silver powder, Silane coupling agent KH550, be uniformly mixed 5 hours, obtains A material;
(6) the prepared 20-25 μ of step (1) m glass dust is added to the prepared organic carrier B of step (3)In, stir and mix, more every minor tick adds 6-10 μ m aluminium powder, 1-5 μ m aluminium powder, stirring for 40 minutes successivelyMix 3 hours, obtain B material;
(7) the prepared 10-15 μ of step (1) m glass dust is added to the prepared organic carrier C of step (4)In, stir mixedly, more every minor tick adds 11-15 μ m copper powder for 40 minutes successively, 30-60nm copper powder,Be uniformly mixed 3 hours, obtain C material;
(8) the leadless solar battery silver aluminum bronze that A material, B material, C material and all the other preparations is contained to graphite powderThe raw material of powder mixes by weight, and ball milling is ground to slurry fineness and is less than 10 μ m, adjusts viscosity, and viscosity is150Pas, to obtain final product.
Adopt screen process press that silver slurry is printed on 125mm × 125mmSi substrate, be then dried at 180 DEG C,Carry out quick fired electrodes lead-in wire at 880 DEG C again, the contact conductor of making after high temperature sintering surface silvery white, smoothZero defect, peel strength 12N/cm, soldering is functional, sheet resistance < 10Siements/sq, the solar energy of preparationCell photoelectric transformation efficiency is 19.7%, and tensile test result is adhesive force > 13N/mm2.
Claims (2)
1. a leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder, is characterized in that, it is to be made by the raw material of following weight parts: A expects 60-65, B expects 20-25, and C expects 10-15, repefral 2-3, graphite powder 0.3-0.6, organic silicone oil 0.5-1; Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 45-48,11-15 μ m silver powder 10-15,30-60nm silver powder 10-15,1-5 μ m glass dust 8-12, organic carrier A15-20, Silane coupling agent KH550 0.8-1.2; Described B material is made by the raw material of following weight parts: 6-10 μ m aluminium powder 55-58,1-5 μ m aluminium powder 10-15,20-25 μ m glass dust 8-10, organic carrier B15-20; Described C material is made by the raw material of following weight parts: 11-15 μ m copper powder 50-55,30-60nm copper powder 5-10,10-15 μ m glass dust 6-8, organic carrier C18-20; Described glass dust is made by the raw material of following weight parts: zinc oxide 2-4, iron oxide 3-5, potassium oxide 4-5, titanium dioxide 8-10, chrome green 6-8, calcium oxide 8-10, manganese dioxide 3-5, ceria 3-5, diboron trioxide 9-12, silica 20-25; Described organic carrier A is made by the raw material of following weight parts: methylcellulose 8-10, calcium stearate 1.8-3.6, isopropyl alcohol 38-42; Described organic carrier B is made by the raw material of following weight parts: octyl phenol urea formaldehyde 2031-2, vinyl chloride vinyl acetate 10-12, solvent DBE15-20, methyl iso-butyl ketone (MIBK) 9.8-10.8; Described organic carrier C is made by the raw material of following weight parts: abietic resin 8-10, ethylene glycol ether 20-25, dimethyl succinate 6-8.
2. a kind of leadless solar battery silver aluminum bronze powder mixed slurry that contains graphite powder according to claim 1, is characterized in that: preparation method comprises the following steps:
(1) take by weight and prepare the required each raw material of glass dust and put in silica crucible and mix, after put into electric furnace in 1100-1300 DEG C of sintering 25-35min, again the glass metal after gained fusing is poured in cold water, then ball milling, cross 200-300 mesh sieve, cooling, again at 600-700 DEG C of insulation 5-6 hour, then, quench by deionized water again, ball milling, cross the sieve of different meshes, collect and obtain 1-5 μ m glass dust respectively, 10-15 μ m glass dust and 20-25 μ m glass dust, use respectively again 10-15% salt acid soak 1-2 hour, then clean to neutrality by deionized water, dry to such an extent that the glass dust of different-grain diameter is for subsequent use,
(2) by weight calcium stearate, isopropyl alcohol are mixed, after at 75-80 DEG C, add methylcellulose, after stirring after dissolving, obtain organic carrier A for subsequent use;
(3), after by weight solvent DBE, methyl iso-butyl ketone (MIBK) being mixed, after adding octyl phenol urea formaldehyde 203 to dissolve at 81-85 DEG C, then add vinyl chloride vinyl acetate to dissolve, after stir, obtain organic carrier B for subsequent use;
(4) by weight ethylene glycol ether, dimethyl succinate are mixed after, at 84-86 DEG C, add abietic resin to dissolve after, stir and to obtain organic carrier C for subsequent use;
(5) glass dust of the prepared 1-5 μ of step (1) m is added in the prepared organic carrier A of step (2) by weight, stir mixed, added by weight successively again 1-5 μ m silver powder, 11-15 μ m silver powder, 30-60nm silver powder, Silane coupling agent KH550 every 20-30 minute, be uniformly mixed 3-5 hour, obtain A material; (6) the prepared 20-25 μ of step (1) m glass dust is added in the prepared organic carrier B of step (3), stir mixed, every minor tick 30-40 minute adds successively 6-10 μ m aluminium powder, 1-5 μ m aluminium powder, is uniformly mixed 2-3 hour again, obtains B material;
(7) the prepared 10-15 μ of step (1) m glass dust is added in the prepared organic carrier C of step (4), stir and mix, more every minor tick 30-40 minute adds 11-15 μ m copper powder, 30-60nm copper powder successively, be uniformly mixed 2-3 hour, obtain C material;
(8) raw material of the leadless solar battery silver aluminum bronze powder that A material, B material, C material and all the other preparations is contained to graphite powder mixes by weight, and ball milling, is ground to slurry fineness and is less than 10 μ m, adjusts viscosity, and viscosity is 120-200Pas, to obtain final product.
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| CN103117109B true CN103117109B (en) | 2016-05-11 |
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| CN104575702A (en) * | 2014-12-23 | 2015-04-29 | 合肥中南光电有限公司 | Environment-friendly electric conduction silver paste |
| CN104992801B (en) * | 2015-06-30 | 2018-02-23 | 苏州洋杰电子有限公司 | A kind of resistance slurry and preparation method thereof |
| CN105810759B (en) * | 2016-04-26 | 2017-07-25 | 江阴市天邦涂料股份有限公司 | A kind of silver-colored aluminum slurry used for solar batteries |
| CN111312425A (en) * | 2019-11-18 | 2020-06-19 | 中亚世纪(天津)科技有限公司 | Hardened feed point material of printed antenna and preparation method thereof |
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| CN102244112A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | Aluminium paste for silicon solar battery |
| CN102568649A (en) * | 2011-12-29 | 2012-07-11 | 彩虹集团公司 | Method for preparing electrode paste for grid buried crystal silicon solar cells |
| CN102708942A (en) * | 2012-02-13 | 2012-10-03 | 江苏瑞德新能源科技有限公司 | Lead-free silver and aluminum slurry for solar photocell and preparation method of slurry |
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| CN102034877A (en) * | 2009-09-30 | 2011-04-27 | 比亚迪股份有限公司 | Conductive paste for solar cell and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244112A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | Aluminium paste for silicon solar battery |
| CN102568649A (en) * | 2011-12-29 | 2012-07-11 | 彩虹集团公司 | Method for preparing electrode paste for grid buried crystal silicon solar cells |
| CN102708942A (en) * | 2012-02-13 | 2012-10-03 | 江苏瑞德新能源科技有限公司 | Lead-free silver and aluminum slurry for solar photocell and preparation method of slurry |
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