CN103117130A - Preparation method for solar cell conductive mixed paste containing polyethylene vinyl acetate - Google Patents
Preparation method for solar cell conductive mixed paste containing polyethylene vinyl acetate Download PDFInfo
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- CN103117130A CN103117130A CN2012105216357A CN201210521635A CN103117130A CN 103117130 A CN103117130 A CN 103117130A CN 2012105216357 A CN2012105216357 A CN 2012105216357A CN 201210521635 A CN201210521635 A CN 201210521635A CN 103117130 A CN103117130 A CN 103117130A
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- vinyl acetate
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- glass dust
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Abstract
The invention discloses solar cell conductive mixed paste containing polyethylene vinyl acetate. The solar cell conductive mixed paste containing the polyethylene vinyl acetate is prepared by the following raw materials: by weight, A materials 58-61, B materials 24.8-26.8, triethyl citrate 0.2-0.4, octyl epoxy stearate 0.3-0.5, polyethylene vinyl acetate1.8-2.6, poly adipic acid glycol1-2, castor oil 1-2, silane coupling agents KH602 1-2, and organic silicon flatting agents 1-2. Due to the fact that lead is not contained, the solar cell conductive mixed paste containing the polyethylene vinyl acetate completely conforms to the requirements of environmental protection, can be applied to the production of solar cells, and can form strong adhesion on the surfaces of solar cells, and cell photoelectric conversion efficiency is high.
Description
Technical field
The present invention relates to the fine Electronic field of chemicals, is exactly a kind of preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate.
Background technology
Electrocondution slurry is electronic devices and components encapsulation, electrode and interconnected critical material, mainly comprises burning infiltration type electrocondution slurry and the large class of curing type conducting resinl (electrically conductive ink) two.
Burning infiltration type electrocondution slurry mainly is used in the industries such as solar cell, makes electrode after sintering and uses, and the curing type electrically conductive ink is widely used in the industries such as printed circuit and Electronic Packaging.
Electrocondution slurry is different according to filler wherein, can be divided into carbon slurry (graphite conductor), metal paste (bronze, silver powder, copper powder, yellow gold), and the ceramic size of modification.
Performance Ratio, the conductivity of noble metal filler is best, carbon slurry secondly.But the price of gold is too high, and the oxidative resistance of copper powder is bad, and silver powder and silver-bearing copper powder are comparatively balanced on price and performance.Will getting well of the resistance to wear silver slurry of carbon slurry.
Solar cell conductive paste is comprised of silver powder, aluminium powder, inorganic bond material, organic carrier and relevant auxiliary agent etc.In most electric slurry, the inorganic bond material is mainly the flint glass powder of low melting point, big for environment pollution 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 preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate.
Above-mentioned purpose realizes by following scheme:
A kind of preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate is characterized in that, comprises the following steps:
(1) take by weight required each raw material of preparation glass dust and put into mixing in silica crucible, after put into electric furnace in 1200-1300 ℃ of sintering 2-3h, again the gained melting charge is poured in cold water and quenched, ball milling, cross the sieve of different meshes, collect respectively and obtain 10-15 μ m glass dust and 20-25 μ m glass dust, then the hydrochloric acid solution that is 5-7% with concentration respectively soaked 3-5 hour, then clean to neutral with deionized water, dry to such an extent that the glass dust of different-grain diameter is standby;
Described glass dust is made by the raw material of following weight parts: Bi
2O
39.9-12.4, B
2O
34-6, Al
2O
33.6-4.9, SiO
212.7-15.6, Sb
2O
38.4-9.6, Na
2O 6-8, K
2O 7-9, CuO 10-12, AS
2O
34.9-6.7, Co
2O
36-8, trees ashes 9-12;
(2) will prepare by weight each raw material blending of organic carrier A after, in 70-75 ℃ of lower stirring and dissolving, cross 300-500 order filter cloth, namely get organic carrier A standby;
Described organic carrier A is made by the raw material of following weight parts: 138 abietic resin 9-11, polyvinyl butyral resin 5-10, polyvinylpyrrolidone 1-2, n-butanol 15-18, isopropyl alcohol 15-18;
(3) will prepare by weight each raw material blending of organic carrier B after, in 65-70 ℃ of lower stirring and dissolving, cross 600-800 order filter cloth, namely get organic carrier B standby;
Described organic carrier B is made by the raw material of following weight parts: methylcellulose 8-10, phenmethylol 4-6, ethylene glycol ethyl ether 18-22, propylene glycol monobutyl ether 10-12;
(4) glass dust with the prepared 10-15 μ of step (1) m adds in the prepared organic carrier A of step (2) by weight, stirs to mix, then adds all the other preparation A material needed raw materials, mixes 3-5 hour, obtains the A material;
Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 55-58,11-15 μ m silver powder 20-25,30-60nm aluminium powder 10-15,10-15 μ m glass dust 8-12, organic carrier A 16-18, octyl epoxy stearate 0.2-0.4;
(5) the prepared 20-25 μ of step (1) m glass dust is added in the prepared organic carrier B of step (3), stirring is mixed, then adds all the other preparation B material needed raw materials, mixes 2-3 hour, obtains the B material;
Described B material is made by the raw material of following weight parts: 6-10 μ m copper powder 45-48,30-60nm bronze 10-15,30-60nm aluminium powder 10-15,20-25 μ m glass dust 8-10, organic carrier B 15-20, organic silicone oil 0.5-1.2, epoxidized soybean oil 2-3, repefral 0.4-0.6;
(6) preparation is contained each raw material mixing by weight of the solar cell conductive mixed slurry of plastic of poly vinyl acetate, ball milling is ground to the slurry fineness less than 10 μ m, transfers viscosity, and viscosity is 120-200Pas, and get final product;
The solar cell conductive mixed slurry that contains plastic of poly vinyl acetate is that the raw material by following weight parts makes: A expects 58-61, B expects 24.8-26.8, triethyl citrate 0.2-0.4, octyl epoxy stearate 0.3-0.5, plastic of poly vinyl acetate 1.8-2.6, poly-adipate glycol 1-2, castor oil 1-2, silane coupler KH602 1-2, organosilicon levelling agent 1-2.
Described a kind of preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate, it is characterized in that: described silver powder is flake silver powder.
Beneficial effect of the present invention is:
1, the electrocondution slurry of gained of the present invention is not leaded, meet environmental requirement fully, be applied to the production of solar cell, can form strong adhesion in solar cell surface, the 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;
2, the present invention has added aluminium powder and can help to reduce silver slurry production cost in electrocondution slurry, save a large amount of noble silvers, improve simultaneously the electric conductivity of silver slurry, thereby reached the purpose that reduces the solar cell manufacturing cost, obtained good economic benefit.Technique of the present invention is simple simultaneously, and cost is low, thereby has broad application prospects.
Embodiment
A kind of preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate comprises the following steps:
(1) take by weight required each raw material of preparation glass dust and put into mixing in silica crucible, after put into electric furnace in 1300 ℃ of sintering 2h, again the gained melting charge is poured in cold water and quenched, ball milling, cross the sieve of different meshes, collect respectively and obtain 10-15 μ m glass dust and 20-25 μ m glass dust, then be 7% hydrochloric acid solution immersion 5 hours with concentration respectively, then clean to neutral with deionized water, dry to such an extent that the glass dust of different-grain diameter is standby;
Described glass dust is made by the raw material of following weight parts (kg): Bi
2O
312.4, B
2O
36, Al
2O
34.9, SiO
215.6, Sb
2O
39.6, Na
2O 8, K
2O 9, and CuO 12, AS
2O
36.7, Co
2O
38, trees ashes 12;
(2) will prepare by weight each raw material blending of organic carrier A after, in 75 ℃ of lower stirring and dissolving, cross 500 order filter clothes, namely get organic carrier A standby;
Described organic carrier A is made by the raw material of following weight parts: 138 abietic resins 11, polyvinyl butyral resin 10, polyvinylpyrrolidone 1, n-butanol 18, isopropyl alcohol 15;
(3) will prepare by weight each raw material blending of organic carrier B after, in 65 ℃ of lower stirring and dissolving, cross 800 order filter clothes, namely get organic carrier B standby;
Described organic carrier B is made by the raw material of following weight parts: methylcellulose 10, phenmethylol 6, ethylene glycol ethyl ether 22, propylene glycol monobutyl ether 12;
(4) glass dust with the prepared 10-15 μ of step (1) m adds in the prepared organic carrier A of step (2) by weight, stirs to mix, then adds all the other preparation A material needed raw materials, mixes 3 hours, obtains the A material;
Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 58,11-15 μ m silver powder 25,30-60nm aluminium powder 15,10-15 μ m glass dust 12, organic carrier A 18, octyl epoxy stearate 0.4;
(5) the prepared 20-25 μ of step (1) m glass dust is added in the prepared organic carrier B of step (3), stirring is mixed, then adds all the other preparation B material needed raw materials, mixes 3 hours, obtains the B material;
Described B material is made by the raw material of following weight parts: 6-10 μ m copper powder 48,30-60nm bronze 15,30-60nm aluminium powder 15,20-25 μ m glass dust 10, organic carrier B 20, organic silicone oil 1.2, epoxidized soybean oil 3, repefral 0.6;
(6) preparation is contained each raw material mixing by weight of the solar cell conductive mixed slurry of plastic of poly vinyl acetate, ball milling is ground to the slurry fineness less than 10 μ m, transfers viscosity, and viscosity is 200Pas, and get final product;
The solar cell conductive mixed slurry that contains plastic of poly vinyl acetate is that the raw material by following weight parts makes: A material 58, B material 26.8, triethyl citrate 0.4, octyl epoxy stearate 0.5, plastic of poly vinyl acetate 2.6, poly-adipate glycol 2, castor oil 2, silane coupler KH602 2, organosilicon levelling agent 2.
Adopt screen process press that the silver slurry is printed on 125mm * 125mm Si substrate, then 180 ℃ of dryings, carry out quick fired electrodes lead-in wire at 880 ℃ again, the surperficial silvery white of the contact conductor of making after high temperature sintering, smooth zero defect, peel strength 14 N/cm, soldering is functional, sheet resistance＜10 Siements/sq, the solar cell photoelectric transformation efficiency of preparation is 19.4%, the tensile test result is adhesive force〉13N/mm
2
Claims (2)
1. a preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate, is characterized in that, comprises the following steps:
(1) take by weight required each raw material of preparation glass dust and put into mixing in silica crucible, after put into electric furnace in 1200-1300 ℃ of sintering 2-3h, again the gained melting charge is poured in cold water and quenched, ball milling, cross the sieve of different meshes, collect respectively and obtain 10-15 μ m glass dust and 20-25 μ m glass dust, then the hydrochloric acid solution that is 5-7% with concentration respectively soaked 3-5 hour, then clean to neutral with deionized water, dry to such an extent that the glass dust of different-grain diameter is standby;
Described glass dust is made by the raw material of following weight parts: Bi
2O
39.9-12.4, B
2O
34-6, Al
2O
33.6-4.9, SiO
212.7-15.6, Sb
2O
38.4-9.6, Na
2O 6-8, K
2O 7-9, CuO 10-12, AS
2O
34.9-6.7, Co
2O
36-8, trees ashes 9-12;
(2) will prepare by weight each raw material blending of organic carrier A after, in 70-75 ℃ of lower stirring and dissolving, cross 300-500 order filter cloth, namely get organic carrier A standby;
Described organic carrier A is made by the raw material of following weight parts: 138 abietic resin 9-11, polyvinyl butyral resin 5-10, polyvinylpyrrolidone 1-2, n-butanol 15-18, isopropyl alcohol 15-18;
(3) will prepare by weight each raw material blending of organic carrier B after, in 65-70 ℃ of lower stirring and dissolving, cross 600-800 order filter cloth, namely get organic carrier B standby;
Described organic carrier B is made by the raw material of following weight parts: methylcellulose 8-10, phenmethylol 4-6, ethylene glycol ethyl ether 18-22, propylene glycol monobutyl ether 10-12;
(4) glass dust with the prepared 10-15 μ of step (1) m adds in the prepared organic carrier A of step (2) by weight, stirs to mix, then adds all the other preparation A material needed raw materials, mixes 3-5 hour, obtains the A material;
Described A material is made by the raw material of following weight parts: 1-5 μ m silver powder 55-58,11-15 μ m silver powder 20-25,30-60nm aluminium powder 10-15,10-15 μ m glass dust 8-12, organic carrier A 16-18, octyl epoxy stearate 0.2-0.4;
(5) the prepared 20-25 μ of step (1) m glass dust is added in the prepared organic carrier B of step (3), stirring is mixed, then adds all the other preparation B material needed raw materials, mixes 2-3 hour, obtains the B material;
Described B material is made by the raw material of following weight parts: 6-10 μ m copper powder 45-48,30-60nm bronze 10-15,30-60nm aluminium powder 10-15,20-25 μ m glass dust 8-10, organic carrier B 15-20, organic silicone oil 0.5-1.2, epoxidized soybean oil 2-3, repefral 0.4-0.6;
(6) preparation is contained each raw material mixing by weight of the solar cell conductive mixed slurry of plastic of poly vinyl acetate, ball milling is ground to the slurry fineness less than 10 μ m, transfers viscosity, and viscosity is 120-200Pas, and get final product;
The solar cell conductive mixed slurry that contains plastic of poly vinyl acetate is that the raw material by following weight parts makes: A expects 58-61, B expects 24.8-26.8, triethyl citrate 0.2-0.4, octyl epoxy stearate 0.3-0.5, plastic of poly vinyl acetate 1.8-2.6, poly-adipate glycol 1-2, castor oil 1-2, silane coupler KH602 1-2, organosilicon levelling agent 1-2.
2. a kind of preparation method who contains the solar cell conductive mixed slurry of plastic of poly vinyl acetate according to claim 1, it is characterized in that: described silver powder is flake silver powder.
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|---|---|---|---|
| CN201210521635.7A CN103117130B (en) | 2012-12-07 | 2012-12-07 | A kind of preparation method of the solar cell conductive mixed slurry containing plastic of poly vinyl acetate |
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|---|---|---|---|
| CN201210521635.7A CN103117130B (en) | 2012-12-07 | 2012-12-07 | A kind of preparation method of the solar cell conductive mixed slurry containing plastic of poly vinyl acetate |
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| CN103117130A true CN103117130A (en) | 2013-05-22 |
| CN103117130B CN103117130B (en) | 2016-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801757A (en) * | 2018-12-27 | 2019-05-24 | 深圳市欧科力科技有限公司 | A kind of preparation method of electronic device electrode slurry |
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| CN101950594A (en) * | 2010-09-20 | 2011-01-19 | 浙江大学 | Lead-free environment-friendly electronic Ag/Al (silver/aluminum) paste 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 |
| CN102150220A (en) * | 2008-09-10 | 2011-08-10 | E.I.内穆尔杜邦公司 | Solar cell electrodes |
| WO2011104859A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社日立製作所 | Electronic component, conductive paste, and method for manufacturing electronic component |
| 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 |
-
2012
- 2012-12-07 CN CN201210521635.7A patent/CN103117130B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150220A (en) * | 2008-09-10 | 2011-08-10 | E.I.内穆尔杜邦公司 | Solar cell electrodes |
| WO2011104859A1 (en) * | 2010-02-26 | 2011-09-01 | 株式会社日立製作所 | Electronic component, conductive paste, and method for manufacturing electronic component |
| CN101950594A (en) * | 2010-09-20 | 2011-01-19 | 浙江大学 | Lead-free environment-friendly electronic Ag/Al (silver/aluminum) paste 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801757A (en) * | 2018-12-27 | 2019-05-24 | 深圳市欧科力科技有限公司 | A kind of preparation method of electronic device electrode slurry |
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| CN103117130B (en) | 2016-08-31 |
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Effective date of registration: 20181225 Address after: 401120 Chongqing Yubei District Shuangfeng Bridge Street 3 East Road 7 buildings Patentee after: Chongqing Beijing Great Automotive Components Company Limited Address before: 233000 No. 112 Nanshan Road, Bengbu City, Anhui Province, 4-1 Patentee before: Bengbu City Zhifeng Science & Technology Co., Ltd. |
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Effective date of registration: 20201224 Address after: 402460 station 13, 10 / F, innovation and development center, 19 Lingfang Avenue, Changzhou street, Rongchang District, Chongqing Patentee after: Chongqing Xinrui Technology Service Co.,Ltd. Address before: 401120 Chongqing Yubei District Shuangfeng Bridge Street 3 East Road 7 buildings Patentee before: Chongqing Beijing Great Automotive Components Co.,Ltd. |
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