CN103310871A - Slurry for solar cells and preparation methods of slurry - Google Patents
Slurry for solar cells and preparation methods of slurry Download PDFInfo
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- CN103310871A CN103310871A CN2012100693241A CN201210069324A CN103310871A CN 103310871 A CN103310871 A CN 103310871A CN 2012100693241 A CN2012100693241 A CN 2012100693241A CN 201210069324 A CN201210069324 A CN 201210069324A CN 103310871 A CN103310871 A CN 103310871A
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- slurry
- solar batteries
- organic binder
- preparation
- binder bond
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Abstract
The invention relates to the technology of slurry for solar cells, in particular to silver slurry for the solar cells, aluminium slurry for the solar cells and preparation methods of the silver slurry and the aluminium slurry. The slurry for the solar cells consists of a functional phase and a carrier phase. The slurry consists of the following components in percentage by mass: 70-85% of conductive metal powder, 5-10% of glass bonder, and 5-25% of mixture consisting of an organic bonder, a solvent and an adjuvant. The slurry is better in rheological property, higher in the depth-width ratio of a coating, and is capable of improving the light use ratio of the solar cells.
Description
Technical field
The present invention relates to a kind of used for solar batteries slurry technology, relate in particular to used for solar batteries silver slurry, aluminium paste and preparation method thereof.
Background technology
In manufacture of solar cells enterprise, generally use leaded solar cell conductive silver slurry, aluminium paste at present.Above-mentioned two kinds of slurries are the major products in the solar energy electronic slurry, are used for the formation that solar cell is just being carried on the back surface field, as the positive back electrode use of solar cell.There is the inefficient deficiency of the too high so that battery of the contact resistance of glass poorly conductive, electrode in existing silver slurry.There are some shortcomings in aluminium paste in solar silicon wafers is produced, in the sintering process, as bubbling, warpage, dry linting, fragment, come off, phenomenon such as poor adhesive force, influence rate of finished products and the photoelectric conversion efficiency of silicon chip.Therefore need a kind of new electronics slurry of invention product to solve these defectives.
Summary of the invention
The purpose of this invention is to provide a kind of new lead-free used for solar batteries slurry with the electricity that solves silver slurry glass in the prior art led low, the electrode contact resistance is too high and the aluminium paste sintering process in the problem of defect, adopt slurry of the present invention can effectively reduce the contact resistance of battery, improve photoelectric conversion efficiency.
The technical solution used in the present invention is: a kind of used for solar batteries slurry, and by function phase and carrier phase composition, described slurry is made up of following component by mass percentage:
Function phase: conductive metal powder 70～85%
Glass binder 5～10%
The carrier phase: by organic binder bond, the mixture 5～25% that solvent and auxiliary agent are formed
Preferred glass binding agent in the used for solar batteries slurry of the present invention is made up of following component: SiO by mass percentage
2: 10～20%, ZnO:0～3%, Bi
2O
3: 15～30%, ZrO
2: 5～15%, B
2O
3: 10～20%, MoO
3: 1～6%, Al
2O
3: 5～15%, TiO
2: 3～10%.
The preferred silver powder of conductive metal powder or aluminium powder in the used for solar batteries slurry of the present invention.
Carrier is preferably pressed mass ratio mutually and is made up of following component in the used for solar batteries slurry of the present invention:
Organic binder bond 3～8%
Solvent 85～95%
Auxiliary agent 0.1～3%
Wherein, described organic binder bond is acrylic resin, phenolic resins, ethyl cellulose, cellaburate or polyvinyl butyral resin;
Described solvent is terpinol, turpentine oil, butanols, butyl glycol ether, ethylene glycol ethyl ether, propylene glycol butyl ether, diethylene glycol ether or diethylene glycol monobutyl ether acetate;
Described auxiliary agent is one or both the mixture in dibutyl phthalate, repefral or the dimethicone.
Above-mentioned used for solar batteries slurry prepares as follows:
A. the preparation of glass binder: press mass ratio SiO
2: 10～20%, ZnO:0～3%, Bi
2O
3: 15～30%, ZrO
2: 5～15%, B
2O
3: 10～20%, MoO
3: 1～6%, Al
2O
3: 5～15%, TiO
2: 3～10%, carry out drying, 120～150 ℃ of baking temperatures, 3～5 hours drying times with putting into Muffle furnace after the even mixing of above-mentioned raw materials; Be warming up to 800～1300 ℃ again, be incubated 1～2 hour, frit after will melting after insulation finishes is poured the container made of iron that deionized water is housed into and is carried out shrend, dried 5～6 hours down at 90～120 ℃ after the shrend, carry out coarse crushing after the oven dry, the frit of coarse crushing, is dried to 10um with ball mill grinding;
B. the preparation of organic binder bond: by quality than organic binder bond: 3～8%, solvent: 85～95%, auxiliary agent: 0.1～3%, above-mentioned raw materials is mixed in blender;
C. the preparation of used for solar batteries slurry: by quality than conductive metal powder: 70～85%, glass binder: 5～10%, organic binder bond: 5～25%, stir after each component weighed, carry out ball milling, make the used for solar batteries slurry.
The invention has the beneficial effects as follows: the solar cell conductive paste by the present invention's preparation, do not need in the glass dust to add the more serious metallic lead of environmental pollution, meet the solar cell environmental protection requirement fully, and adhesive force is good, the rete difficult drop-off; By the rational proportion to the carrier phase, slurry has good rheological, and the depth-width ratio of coating is higher, can improve the light utilization of solar cell.
Embodiment
Following non-limiting example can make those of ordinary skill in the art more fully understand the present invention, but does not limit the present invention in any way.
Embodiment 1～4
A. the preparation of glass binder: weigh by selected raw material mass ratio, put into Muffle furnace after evenly mixing and carry out drying, 150 ℃ of baking temperatures, 4 hours drying times; Be warming up to 1200 ℃ again, be incubated 1.5 hours, the frit after will melting after insulation finishes is poured the container made of iron that deionized water is housed into and is carried out shrend, dried 5 hours down at 120 ℃ after the shrend, carry out coarse crushing after the oven dry, the frit of coarse crushing, is dried to 10um with ball mill grinding;
B. the preparation of organic binder bond: by selected raw material mass ratio weigh the back in blender, mix;
C. the preparation of used for solar batteries slurry: stir after each component weighed, carry out ball milling, make the used for solar batteries slurry.
The raw material proportioning sees Table 1
Table 1
Claims (5)
1. used for solar batteries slurry, by function mutually and the carrier phase composition, it is characterized in that: described slurry is made up of following component by mass percentage:
Function phase: conductive metal powder 70～85%
Glass binder 5～10%
The carrier phase: by organic binder bond, the mixture 5～25% that solvent and auxiliary agent are formed
2. used for solar batteries slurry according to claim 1 is characterized in that: described glass binder, formed by following component by mass percentage: SiO
2: 10～20%, ZnO:0～3%, Bi
2O
3: 15～30%, ZrO
2: 5～15%, B
2O
3: 10～20%, MoO
3: 1～6%, Al
2O
3: 5～15%, TiO
2: 3～10%.
3. used for solar batteries slurry according to claim 1, it is characterized in that: described conductive metal powder is silver powder or aluminium powder.
4. used for solar batteries slurry according to claim 1, it is characterized in that: described carrier is pressed mass ratio mutually and is made up of following component:
Organic binder bond 3～8%
Solvent 85～95%
Auxiliary agent 0.1～3%
Wherein, described organic binder bond is acrylic resin, phenolic resins, ethyl cellulose, cellaburate or polyvinyl butyral resin;
Described solvent is terpinol, turpentine oil, butanols, butyl glycol ether, ethylene glycol ethyl ether, propylene glycol butyl ether, diethylene glycol ether or diethylene glycol monobutyl ether acetate;
Described auxiliary agent is one or both the mixture in dibutyl phthalate, repefral, the dimethicone.
5. used for solar batteries slurry is characterized in that: preparation as follows:
A. the preparation of glass binder: press mass ratio with SiO
2: 10～20%, ZnO:0～3%, Bi
2O
3: 15～30%, ZrO
2: 5～15%, B
2O
3: 10～20%, MoO
3: 1～6%, Al
2O
3: 5～15%, TiO
2: 3～10% evenly mix the back drying, are warming up to 800～1300 ℃ after the drying, are incubated 1～2 hour, insulation is poured frit into container made of iron after finishing, and carries out shrend, dries after the shrend, carry out coarse crushing then, the frit after the coarse crushing is ground to below the 10um dries;
B. the preparation of organic binder bond: by mass percentage with organic binder bond: 3～8%, solvent: 85～95%, auxiliary agent: 0.1～3% mixes;
C. the preparation of used for solar batteries slurry: press mass ratio with conductive metal powder: 70～85%, glass binder: 5～10%, organic binder bond: 5～25% stir after weighing, and carry out ball milling, make the used for solar batteries slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100693241A CN103310871A (en) | 2012-03-15 | 2012-03-15 | Slurry for solar cells and preparation methods of slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100693241A CN103310871A (en) | 2012-03-15 | 2012-03-15 | Slurry for solar cells and preparation methods of slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103310871A true CN103310871A (en) | 2013-09-18 |
Family
ID=49135990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100693241A Pending CN103310871A (en) | 2012-03-15 | 2012-03-15 | Slurry for solar cells and preparation methods of slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103310871A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606569A (en) * | 2013-10-26 | 2014-02-26 | 溧阳市东大技术转移中心有限公司 | Photovoltaic cell structure |
| CN104538193A (en) * | 2014-12-18 | 2015-04-22 | 中国科学院上海硅酸盐研究所 | Titanium dioxide slurry and preparation method and application thereof |
| CN105679410A (en) * | 2016-04-26 | 2016-06-15 | 江阴市天邦涂料股份有限公司 | High-adhesion-stability silver-aluminum slurry for solar battery |
| CN105741905A (en) * | 2014-12-30 | 2016-07-06 | 三星Sdi株式会社 | Composition for solar cell electrode and electrode prepared using the same |
| CN106158068A (en) * | 2016-07-05 | 2016-11-23 | 湖南省国银新材料有限公司 | conductive silver paste and preparation method thereof |
| CN106297956A (en) * | 2016-11-10 | 2017-01-04 | 北京市合众创能光电技术有限公司 | A kind of crystal silicon solar energy battery positive silver paste and preparation method thereof |
| CN107274961A (en) * | 2017-05-18 | 2017-10-20 | 江苏东昇光伏科技有限公司 | A kind of aluminum slurry used for solar batteries and preparation method thereof |
| CN112435774A (en) * | 2020-10-21 | 2021-03-02 | 中国电子科技集团公司第十三研究所 | Copper conductor slurry suitable for ceramic packaging shell and preparation method thereof |
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| CN101271928A (en) * | 2008-05-04 | 2008-09-24 | 常州亿晶光电科技有限公司 | High-viscosity solar cell front side silver paste and method for producing the same |
| WO2009041182A1 (en) * | 2007-09-27 | 2009-04-02 | Murata Manufacturing Co., Ltd. | Ag electrode paste, solar battery cell, and process for producing the solar battery cell |
| US20100059116A1 (en) * | 2008-09-05 | 2010-03-11 | E. I. Du Pont De Nemours And Company | Aluminum pastes and use thereof in the production of silicon solar cells |
| CN102157219A (en) * | 2011-01-12 | 2011-08-17 | 西安银泰新能源材料科技有限公司 | Silver paste for positive electrode of crystalline silicon solar cell and preparation method thereof |
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2012
- 2012-03-15 CN CN2012100693241A patent/CN103310871A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009041182A1 (en) * | 2007-09-27 | 2009-04-02 | Murata Manufacturing Co., Ltd. | Ag electrode paste, solar battery cell, and process for producing the solar battery cell |
| CN101271928A (en) * | 2008-05-04 | 2008-09-24 | 常州亿晶光电科技有限公司 | High-viscosity solar cell front side silver paste and method for producing the same |
| US20100059116A1 (en) * | 2008-09-05 | 2010-03-11 | E. I. Du Pont De Nemours And Company | Aluminum pastes and use thereof in the production of silicon solar cells |
| CN102157219A (en) * | 2011-01-12 | 2011-08-17 | 西安银泰新能源材料科技有限公司 | Silver paste for positive electrode of crystalline silicon solar cell and preparation method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606569A (en) * | 2013-10-26 | 2014-02-26 | 溧阳市东大技术转移中心有限公司 | Photovoltaic cell structure |
| CN104538193A (en) * | 2014-12-18 | 2015-04-22 | 中国科学院上海硅酸盐研究所 | Titanium dioxide slurry and preparation method and application thereof |
| CN105741905A (en) * | 2014-12-30 | 2016-07-06 | 三星Sdi株式会社 | Composition for solar cell electrode and electrode prepared using the same |
| TWI622180B (en) * | 2014-12-30 | 2018-04-21 | 三星Sdi 股份有限公司 | Composition for solar cell electrode and solar cell electrode |
| US9997648B2 (en) | 2014-12-30 | 2018-06-12 | Samsung Sdi Co., Ltd. | Composition for solar cell electrode and electrode prepared using the same |
| CN108269643A (en) * | 2014-12-30 | 2018-07-10 | 三星Sdi株式会社 | Composition for electrode of solar battery and the electrode of solar battery using its preparation |
| CN105679410A (en) * | 2016-04-26 | 2016-06-15 | 江阴市天邦涂料股份有限公司 | High-adhesion-stability silver-aluminum slurry for solar battery |
| CN105679410B (en) * | 2016-04-26 | 2017-02-15 | 江阴市天邦涂料股份有限公司 | High-adhesion-stability silver-aluminum slurry for solar battery |
| CN106158068A (en) * | 2016-07-05 | 2016-11-23 | 湖南省国银新材料有限公司 | conductive silver paste and preparation method thereof |
| CN106297956A (en) * | 2016-11-10 | 2017-01-04 | 北京市合众创能光电技术有限公司 | A kind of crystal silicon solar energy battery positive silver paste and preparation method thereof |
| CN107274961A (en) * | 2017-05-18 | 2017-10-20 | 江苏东昇光伏科技有限公司 | A kind of aluminum slurry used for solar batteries and preparation method thereof |
| CN112435774A (en) * | 2020-10-21 | 2021-03-02 | 中国电子科技集团公司第十三研究所 | Copper conductor slurry suitable for ceramic packaging shell and preparation method thereof |
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Application publication date: 20130918 |
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