CN105810284A - Slurry for silicon solar cell - Google Patents
Slurry for silicon solar cell Download PDFInfo
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- CN105810284A CN105810284A CN201610162717.5A CN201610162717A CN105810284A CN 105810284 A CN105810284 A CN 105810284A CN 201610162717 A CN201610162717 A CN 201610162717A CN 105810284 A CN105810284 A CN 105810284A
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- solar cell
- silicon solar
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- 239000002002 slurry Substances 0.000 title claims abstract description 67
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 26
- 239000010703 silicon Substances 0.000 title claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 55
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000011521 glass Substances 0.000 claims abstract description 42
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 40
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 39
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims abstract description 30
- 229910052709 silver Inorganic materials 0.000 claims abstract description 23
- 239000004332 silver Substances 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 15
- 229960001631 carbomer Drugs 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 239000000787 lecithin Substances 0.000 claims abstract description 15
- 229940067606 lecithin Drugs 0.000 claims abstract description 15
- 235000010445 lecithin Nutrition 0.000 claims abstract description 15
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 31
- -1 carbon nano tube compound Chemical class 0.000 claims description 26
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 24
- 229910000989 Alclad Inorganic materials 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 14
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 13
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229910000077 silane Inorganic materials 0.000 claims description 13
- 229910052681 coesite Inorganic materials 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 229910052682 stishovite Inorganic materials 0.000 claims description 12
- 229910052905 tridymite Inorganic materials 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 238000000889 atomisation Methods 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 7
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 7
- 239000012046 mixed solvent Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 238000001291 vacuum drying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 6
- 229930006000 Sucrose Natural products 0.000 claims description 6
- 239000005720 sucrose Substances 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007772 electrode material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- 241000779819 Syncarpia glomulifera Species 0.000 abstract 1
- 229910021485 fumed silica Inorganic materials 0.000 abstract 1
- 239000001739 pinus spp. Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 229940036248 turpentine Drugs 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 24
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- SNKMVYBWZDHJHE-UHFFFAOYSA-M lithium;dihydrogen phosphate Chemical compound [Li+].OP(O)([O-])=O SNKMVYBWZDHJHE-UHFFFAOYSA-M 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011267 electrode slurry Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 229960004063 propylene glycol Drugs 0.000 description 2
- 235000013772 propylene glycol Nutrition 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
Abstract
The invention belongs to a photocell electrode material, and discloses slurry for a silicon solar cell. The slurry is prepared from the following raw materials in parts by weight: 40-60 parts of silver powder, 5-10 parts of copper powder, 10-20 parts of silver clad aluminum alloy powder, 1-5 parts of lithium iron phosphate/carbon nanotube composite materials, 1-8 parts of glass powder, 0.5-2 parts of silane coupling agents, 8-10 parts of propylene glycol n-butyl ether, 1-5 parts of turpentine, 1-3 parts of lecithin, 0.1-0.5 part of carbomer and 0.25-1 part of fumed silica. The invention further discloses a preparation method of the slurry. The prepared slurry does not contain lead, is in complete accordance with the environmental protection requirements, is applied to production of the solar cell, and can be formed on the surface of the solar cell; the adhesive force is high; and the photoelectric conversion efficiency of the cell is high. Meanwhile, the technology is simple and the cost is low, so that the slurry has a wide application prospect.
Description
Technical field
The present invention relates to light cell electrode material, particularly relate to a kind of silicon solar cell slurry.
Background technology
Solaode can directly convert light energy into electric energy, be a kind of can be in the way of effectively utilizing solar energy, also
It it is important renewable and clean energy resource.Nearly ten years, in fast-developing photovoltaic industry, high efficiency and low cost are always two
Individual main competition spot, crystalline silicon accounts for as current topmost solar cell material, the efficient stable by its battery always
Most of share according to photovoltaic market.
Crystal silicon solar energy battery is the dress directly luminous energy being changed into electric energy by photoelectric effect or Photochemical effects
Put.When sunlight is on crystal silicon semiconductor p-n junction, form new hole-electron pair, under the effect of p-n junction electric field,
Hole is flowed to p district by n district, and electronics is flowed to n district by p district, is formed for electric current after connecting circuit, here it is photoelectric effect solar-electricity
The operation principle in pond.Silicon solar cell slurry is to make the basic material that photovoltaic solar cells are important.
CN101651155A discloses composition and the preparation method of a kind of silicon solar cell electrode slurry, this patent lifting manipulation
With the Al-back-surface-field (BSF) paste of silicon solar cell of the Ohmic contact that a kind of silicon-containing alloy powder is formed, its composition is aluminium powder 40-70 matter
Amount %, simple substance element indium powder 0.01-5 mass %, organic bond 20-30 mass %, inorganic binder 0.1-15 mass %, silicon alloy
Powder 0.1-40 mass %, total amount is 100 mass %.Use this slurry can increase alloy layer thickness, improve Ohmic contact, but should
In slurry, it is only simple mechanical mixture between silicon alloy powder and functional conductive powder (i.e. aluminium powder), aluminum during sintering, can't be reduced
The melt temperature of powder, it is also possible to introduce impurity element in back surface field, reduce the transformation efficiency of battery.It addition, this slurry uses
Rare metal indium powder so that the cost of slurry is greatly increased.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of silicon solar cell slurry.This
The slurry of invention has, cell photoelectric conversion efficiency strong at solar cell surface adhesive force and the excellent feature of conductive capability；
The slurry of the present invention has, cell photoelectric conversion efficiency strong at solar cell surface adhesive force and the excellent spy of conductive capability
Point；Present invention process is simple, and low cost has broad application prospects.
The technical solution used in the present invention is as follows:
A kind of silicon solar cell slurry, in parts by weight, described slurry feedstock consists of: 40 ~ 60 parts of argentum powder, copper powder
5 ~ 10 parts, silver alclad alloyed powder 10 ~ 20 parts, lithium iron phosphate/carbon nano tube compound material 1 ~ 5 part, 1 ~ 8 part of glass dust, silane is even
Connection agent 0.5 ~ 2 part, propylene glycol monobutyl ether 8-10 part, Oleum Terebinthinae 1-5 part, lecithin 1-3 part, carbomer 0.1-0.5 part, gas phase two
Silicon oxide 0.25-1 part.
Further, described argentum powder is a length of 3 ~ 7 μm, the nano silver wire of a diameter of 50 ~ 100nm；Described copper powder is active copper
Content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm.
Further, described silver alclad alloyed powder is the spheroidal particle of a diameter of 5 ~ 8 μm.
Further, the preparation method of described lithium iron phosphate/carbon nano tube compound material is:
(1) first by 5 ~ 10 parts of CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 400 ~ 500 parts of ethanol Yu water
In, form carbon nano tube dispersion liquid；
(2) in carbon nano tube dispersion liquid, it is separately added into 20 ~ 25 parts of lithium carbonate, 5 ~ 10 parts of ferric nitrates, 5 ~ 10 parts of biphosphates again
Lithium and 10 ~ 15 portions of sucrose, heated and stirred forms serosity, is cooled to ultrasonic disperse 10 ~ 20min after room temperature, moves into vacuum drying oven
Middle placement 15 ~ 20h, then evacuation be heated to 50 ~ 70 DEG C, until the solvent volatilization in serosity is completely；
(3) composite 300 ~ 400 DEG C of pre-burning 5 ~ 7h in Muffle furnace that will process through step (2), then at 700 ~ 800 DEG C
Roasting 5 ~ 7h, obtains described lithium iron phosphate/carbon nano tube compound material.
Further, the component of described glass dust is SiO2 15 ~ 30 parts, Bi2O3 10 ~ 20 parts, B2O3 10 ~ 20 parts, BaO/
BaCO3 5 ~ 10 parts, γ-AL2O3 15 ~ 25 parts, ZnO 5 ~ 10 parts.
Further, described glass dust be mass ratio be the glass dust I and glass dust II of 1:1, the particle diameter of glass dust I is 5 ~
15 μm, the particle diameter of glass dust II is 1 ~ 5 μm.
Further, described silane coupler is KH550, KH560 or KH602.
Further, present invention also offers the preparation method of described silicon solar cell slurry, described preparation
Method is: first by molten to lithium iron phosphate/carbon nano tube compound material, silane coupler, lecithin, carbomer and aerosil
In propylene glycol monobutyl ether and Oleum Terebinthinae, obtain thickness slurry；Again argentum powder, copper powder, silver alclad alloyed powder and glass dust are added into
In thickness slurry, mix homogeneously, then grinds with three-roll grinder, obtains described slurry.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
(1) present invention has selected argentum powder and copper powder and the silver alclad alloyed powder of different-grain diameter simultaneously, increases interparticle contact surface
Long-pending, thus improve the conductive capability of slurry；Compared with prior art, existing stable preparation process is used due to argentum powder major part
And the nano silver wire that cost is the cheapest relative to nano-Ag particles, effectively reduce the material cost of slurry；And due to silver nanoparticle
Line can fill mutually argentum powder gap with Micron Copper Powder and silver alclad alloyed powder, thus adds conductive path to form conductive mesh
Network, can reduce slurry further and burn till the specific insulation of electrode material；
(2) present invention with the addition of copper powder and silver alclad alloyed powder in the slurry, it is possible to contributes to reducing slurry production cost, saves
Substantial amounts of noble silver, improves the electric conductivity of slurry simultaneously, thus has reached to reduce the purpose of solaode manufacturing cost,
Achieve good economic benefit；
(3) present invention with the addition of lithium iron phosphate/carbon nano tube compound material in the slurry, by CNT improve granule with
Contact between Li, forms the conductive network that specific insulation is the least, enhances conductive network, thus improve the conduction energy of slurry
Power；Present invention also offers the preparation method of lithium iron phosphate/carbon nano tube compound material, prepare the stage (serosity of presoma
Preparation) just introduce CNT (carbon nano tube dispersion liquid), presintering the most again, roasting prepare lithium iron phosphate/carbon nanometer
Pipe composite, the CNT so introduced can be scattered between the primary particle of LiFePO4, easily primary particle it
Between form conductive network, improve greatly the electric conductivity of material, and unlike prior art is in ready-made LiFePO4 serosity
Adding carbon nano tube dispersion liquid, the CNT so introduced can only be scattered between the second particle of LiFePO4, electric conductivity
Limited.Therefore, the composite that the present invention prepares has preferable electric conductivity；Add electrode slurry prepared by this composite
There is preferable chemical property；
(4) present invention with the addition of silane coupler in the slurry, and silane coupler has between enhancing Organic substance and inorganic compound
Affinity effect, can strengthen improve electrode slurry physical and chemical performance, improve the bonding Combination between functional conductive powder,
Thus improve the slurry adhesive force in solar cell surface；
(5) slurry of gained of the present invention is the most leaded, complies fully with environmental requirement, is applied to the production of solaode, can be too
Sun can battery surface formation adhesive force be strong, cell photoelectric conversion efficiency is high, and present invention process is simple simultaneously, low cost, thus tool
Have broad application prospects.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalence or similar characteristics.
Embodiment 1
First prepare lithium iron phosphate/carbon nano tube compound material:
(1) first by 8g CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 450g ethanol and water, form carbon and receive
Mitron dispersion liquid；
(2) in carbon nano tube dispersion liquid, 20g lithium carbonate, 10g ferric nitrate, 8g lithium dihydrogen phosphate and 15g sucrose it are separately added into again,
Heated and stirred forms serosity, is cooled to ultrasonic disperse 15min after room temperature, moves into and places 15h, then evacuation in vacuum drying oven
And be heated to 60 DEG C, until the solvent volatilization in serosity is completely；
(3) the composite 350 DEG C of pre-burning 6h in Muffle furnace that will process through step (2), then roasting 6h at 750 DEG C,
To described lithium iron phosphate/carbon nano tube compound material.
Preparing glass dust and organic carrier again, wherein the component of glass dust I is 5 ~ 15 μm SiO2 20g, 5 ~ 15 μm Bi2O3
15g, 5 ~ 15 μm B2O3 15g, 5 ~ 15 μm BaO/BaCO3 8g, 5 ~ 15 μm γ-AL2O3 20g, 5 ~ 15 μm ZnO 8g；Wherein glass dust
The component of II is 1 ~ 5 μm SiO2 20g、1~5μmBi2O3 15g, 1 ~ 5 μm B2O3 15g, 1 ~ 5 μm BaO/BaCO3 8g, 1 ~ 5 μm γ-
AL2O3 20g, 1 ~ 5 μm ZnO 8g；
Prepare the silicon solar cell slurry of the present invention again, weigh argentum powder 50g, copper powder 8g, silver alclad alloyed powder the most respectively
15g, lithium iron phosphate/carbon nano tube compound material 3g, above-mentioned glass dust 7g, KH550 1g, the propylene glycol monobutyl ether 9g prepared,
Oleum Terebinthinae 4g, lecithin 2g, carbomer 0.25g, aerosil 0.5g；Wherein argentum powder is the nanometer of a diameter of 50 ~ 80nm
Ball, copper powder be active copper content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm；Then by lithium iron phosphate/carbon nanometer
Pipe composite, silane coupler, lecithin, carbomer and aerosil are dissolved in propylene glycol monobutyl ether and Oleum Terebinthinae,
Obtain thickness slurry；Argentum powder, copper powder, silver alclad alloyed powder and glass dust being added in thickness slurry, mix homogeneously, then with three again
Roller mill grinds, and obtains described slurry.
Embodiment 2
First prepare lithium iron phosphate/carbon nano tube compound material:
(1) first by 5g CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 400g ethanol and water, form carbon and receive
Mitron dispersion liquid；
(2) in carbon nano tube dispersion liquid, 25g lithium carbonate, 5g ferric nitrate, 5g lithium dihydrogen phosphate and 10g sucrose it are separately added into again,
Heated and stirred forms serosity, is cooled to ultrasonic disperse 10min after room temperature, moves into and places 20h, then evacuation in vacuum drying oven
And be heated to 50 DEG C, until the solvent volatilization in serosity is completely；
(3) the composite 300 DEG C of pre-burning 7h in Muffle furnace that will process through step (2), then roasting 5h at 700 DEG C,
To described lithium iron phosphate/carbon nano tube compound material.
Preparing glass dust and organic carrier again, wherein the component of glass dust I is 5 ~ 15 μm SiO2 15g, 5 ~ 15 μm Bi2O3
20g, 5 ~ 15 μm B2O3 10g, 5 ~ 15 μm BaO/BaCO3 5g, 5 ~ 15 μm γ-AL2O3 15g, 5 ~ 15 μm ZnO 5g；Wherein glass dust
The component of II is 1 ~ 5 μm SiO2 10g、1~5μmBi2O3 20g, 1 ~ 5 μm B2O3 10g, 1 ~ 5 μm BaO/BaCO3 5g, 1 ~ 5 μm γ-
AL2O3 15g, 1 ~ 5 μm ZnO 5g；
Prepare the silicon solar cell slurry of the present invention again, weigh argentum powder 50g, copper powder 8g, silver alclad alloyed powder the most respectively
15g, lithium iron phosphate/carbon nano tube compound material 3g, above-mentioned glass dust 7g, KH550 1g, the propylene glycol monobutyl ether 8g prepared,
Oleum Terebinthinae 5g, lecithin 3g, carbomer 0.1g, aerosil 0.25g；Wherein argentum powder is the nanometer of a diameter of 50 ~ 80nm
Ball, copper powder be active copper content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm；Then by lithium iron phosphate/carbon nanometer
Pipe composite, silane coupler, lecithin, carbomer and aerosil are dissolved in propylene glycol monobutyl ether and Oleum Terebinthinae,
Obtain thickness slurry；Argentum powder, copper powder, silver alclad alloyed powder and glass dust being added in thickness slurry, mix homogeneously, then with three again
Roller mill grinds, and obtains described slurry.
Embodiment 3
First prepare lithium iron phosphate/carbon nano tube compound material:
(1) first by 10g CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 500g ethanol and water, form carbon
Nanotube dispersion liquid；
(2) in carbon nano tube dispersion liquid, 20g lithium carbonate, 10g ferric nitrate, 10g lithium dihydrogen phosphate and 15g sugarcane it are separately added into again
Sugar, heated and stirred forms serosity, is cooled to ultrasonic disperse 10min after room temperature, moves into and places 20h in vacuum drying oven, then takes out
Vacuum is also heated to 50 DEG C, until the solvent volatilization in serosity is completely；
(3) the composite 300 DEG C of pre-burning 7h in Muffle furnace that will process through step (2), then roasting 5h at 700 DEG C,
To described lithium iron phosphate/carbon nano tube compound material.
Preparing glass dust and organic carrier again, wherein the component of glass dust I is 5 ~ 15 μm SiO2 30g, 5 ~ 15 μm Bi2O3
10g, 5 ~ 15 μm B2O3 20g, 5 ~ 15 μm BaO/BaCO3 10g, 5 ~ 15 μm γ-AL2O3 25g, 5 ~ 15 μm ZnO 10g；Wherein glass
The component of powder II is 1 ~ 5 μm SiO2 30g、1~5μmBi2O3 10g, 1 ~ 5 μm B2O3 20g, 1 ~ 5 μm BaO/BaCO3 10g, 1 ~ 5 μm
γ-AL2O3 25g, 1 ~ 5 μm ZnO 10g；
Prepare the silicon solar cell slurry of the present invention again, weigh argentum powder 50g, copper powder 8g, silver alclad alloyed powder the most respectively
15g, lithium iron phosphate/carbon nano tube compound material 3g, above-mentioned glass dust 7g, the KH550 1g prepared, propylene glycol monobutyl ether
10g, Oleum Terebinthinae 1g, lecithin 1g, carbomer 0.5g, aerosil 1g；Wherein argentum powder is the nanometer of a diameter of 50 ~ 80nm
Ball, copper powder be active copper content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm；Then by lithium iron phosphate/carbon nanometer
Pipe composite, silane coupler, lecithin, carbomer and aerosil are dissolved in propylene glycol monobutyl ether and Oleum Terebinthinae,
Obtain thickness slurry；Argentum powder, copper powder, silver alclad alloyed powder and glass dust being added in thickness slurry, mix homogeneously, then with three again
Roller mill grinds, and obtains described slurry.
Embodiment 4
First prepare lithium iron phosphate/carbon nano tube compound material:
(1) first by 8g CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 450g ethanol and water, form carbon and receive
Mitron dispersion liquid；
(2) in carbon nano tube dispersion liquid, 20g lithium carbonate, 10g ferric nitrate, 8g lithium dihydrogen phosphate and 15g sucrose it are separately added into again,
Heated and stirred forms serosity, is cooled to ultrasonic disperse 15min after room temperature, moves into and places 15h, then evacuation in vacuum drying oven
And be heated to 60 DEG C, until the solvent volatilization in serosity is completely；
(3) the composite 350 DEG C of pre-burning 6h in Muffle furnace that will process through step (2), then roasting 6h at 750 DEG C,
To described lithium iron phosphate/carbon nano tube compound material.
Preparing glass dust and organic carrier again, wherein the component of glass dust I is 5 ~ 15 μm SiO2 20g, 5 ~ 15 μm Bi2O3
15g, 5 ~ 15 μm B2O3 15g, 5 ~ 15 μm BaO/BaCO3 8g, 5 ~ 15 μm γ-AL2O3 20g, 5 ~ 15 μm ZnO 8g；Wherein glass dust
The component of II is 1 ~ 5 μm SiO2 20g、1~5μmBi2O3 15g, 1 ~ 5 μm B2O3 15g, 1 ~ 5 μm BaO/BaCO3 8g, 1 ~ 5 μm γ-
AL2O3 20g, 1 ~ 5 μm ZnO 8g；
Prepare the silicon solar cell slurry of the present invention again, weigh argentum powder 40g, copper powder 10g, silver alclad alloyed powder the most respectively
20g, lithium iron phosphate/carbon nano tube compound material 1g, above-mentioned glass dust 2g, KH560 1g, the propylene glycol monobutyl ether 9g prepared,
Oleum Terebinthinae 4g, lecithin 2g, carbomer 0.25g, aerosil 0.5g；Wherein argentum powder is a length of 3 ~ 7 μm, a diameter of 50
The nano silver wire of ~ 100nm, copper powder be active copper content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm；Then by phosphorus
Acid ferrum lithium/carbon nano tube compound material, silane coupler, lecithin, carbomer and aerosil are dissolved in propyleneglycol monobutyl
In ether and Oleum Terebinthinae, obtain thickness slurry；Again argentum powder, copper powder, silver alclad alloyed powder and glass dust are added in thickness slurry, mixing
Uniformly, then grind with three-roll grinder, obtain described slurry.
Embodiment 5
First prepare lithium iron phosphate/carbon nano tube compound material:
(1) first by 8g CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 450g ethanol and water, form carbon and receive
Mitron dispersion liquid；
(2) in carbon nano tube dispersion liquid, 20g lithium carbonate, 10g ferric nitrate, 8g lithium dihydrogen phosphate and 15g sucrose it are separately added into again,
Heated and stirred forms serosity, is cooled to ultrasonic disperse 15min after room temperature, moves into and places 15h, then evacuation in vacuum drying oven
And be heated to 60 DEG C, until the solvent volatilization in serosity is completely；
(3) the composite 350 DEG C of pre-burning 6h in Muffle furnace that will process through step (2), then roasting 6h at 750 DEG C,
To described lithium iron phosphate/carbon nano tube compound material.
Preparing glass dust and organic carrier again, wherein the component of glass dust I is 5 ~ 15 μm SiO2 20g, 5 ~ 15 μm Bi2O3
15g, 5 ~ 15 μm B2O3 15g, 5 ~ 15 μm BaO/BaCO3 8g, 5 ~ 15 μm γ-AL2O3 20g, 5 ~ 15 μm ZnO 8g；Wherein glass dust
The component of II is 1 ~ 5 μm SiO2 20g、1~5μmBi2O3 15g, 1 ~ 5 μm B2O3 15g, 1 ~ 5 μm BaO/BaCO3 8g, 1 ~ 5 μm γ-
AL2O3 20g, 1 ~ 5 μm ZnO 8g；
Prepare the silicon solar cell slurry of the present invention again, weigh argentum powder 60g, copper powder 5g, silver alclad alloyed powder the most respectively
10g, lithium iron phosphate/carbon nano tube compound material 5g, above-mentioned glass dust 8g, KH602 1g, the propylene glycol monobutyl ether 9g prepared,
Oleum Terebinthinae 4g, lecithin 2g, carbomer 0.25g, aerosil 0.5g；Wherein argentum powder is a length of 3 ~ 7 μm, a diameter of 50
The nano silver wire of ~ 100nm, copper powder be active copper content more than 98%, the atomization spherical copper powder of a diameter of 1 ~ 3 μm；Then by phosphorus
Acid ferrum lithium/carbon nano tube compound material, silane coupler, lecithin, carbomer and aerosil are dissolved in propyleneglycol monobutyl
In ether and Oleum Terebinthinae, obtain thickness slurry；Again argentum powder, copper powder, silver alclad alloyed powder and glass dust are added in thickness slurry, mixing
Uniformly, then grind with three-roll grinder, obtain described slurry.
The slurry embodiment of the present invention 1 ~ 5 prepared respectively uses screen printer print in 125mm × 125mm
On Si substrate, being then dried at 180 DEG C, then carry out quick fired electrodes lead-in wire at 880 DEG C, the electrode made after high temperature sintering draws
Line surface silvery white, smooth zero defect；Again the slurry of embodiment and the performance of respective electrode are tested, refer to table 1 below.
Table 1
As it can be seen from table 1 the electrode of solar battery that the solar cell size of the employing present invention and preparation method obtain, phase
The electrode of prior art is all effectively reduced silverskin surface resistivity, further increases interfacial adhesion and opto-electronic conversion effect
Rate.
To sum up, the solar cell size of embodiment of the present invention offer and preparation method, greatly reduce material cost, with
Time battery performance have also been obtained and promote to a certain extent.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any disclose in this manual
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (8)
1. a silicon solar cell slurry, it is characterised in that in parts by weight, described slurry feedstock consists of: silver
40 ~ 60 parts of powder, copper powder 5 ~ 10 parts, silver alclad alloyed powder 10 ~ 20 parts, lithium iron phosphate/carbon nano tube compound material 1 ~ 5 part, glass
1 ~ 8 part of powder, silane coupler 0.5 ~ 2 part, propylene glycol monobutyl ether 8-10 part, Oleum Terebinthinae 1-5 part, lecithin 1-3 part, carbomer
0.1-0.5 part, aerosil 0.25-1 part.
Silicon solar cell slurry the most according to claim 1, it is characterised in that described argentum powder is a length of 3 ~ 7 μm,
The nano silver wire of a diameter of 50 ~ 100nm；Described copper powder be active copper content more than 98%, the atomization of a diameter of 1 ~ 3 μm is spherical
Copper powder.
Silicon solar cell slurry the most according to claim 1, it is characterised in that described silver alclad alloyed powder is diameter
It it is the spheroidal particle of 5 ~ 8 μm.
Silicon solar cell slurry the most according to claim 1, it is characterised in that described lithium iron phosphate/carbon nanotube
The preparation method of composite is:
(1) first by 5 ~ 10 parts of CNT ultrasonic disperse in the mixed solvent that volume ratio is 1:1 of 400 ~ 500 parts of ethanol Yu water
In, form carbon nano tube dispersion liquid；
(2) in carbon nano tube dispersion liquid, it is separately added into 20 ~ 25 parts of lithium carbonate, 5 ~ 10 parts of ferric nitrates, 5 ~ 10 parts of biphosphates again
Lithium and 10 ~ 15 portions of sucrose, heated and stirred forms serosity, is cooled to ultrasonic disperse 10 ~ 20min after room temperature, moves into vacuum drying oven
Middle placement 15 ~ 20h, then evacuation be heated to 50 ~ 70 DEG C, until the solvent volatilization in serosity is completely；
(3) composite 300 ~ 400 DEG C of pre-burning 5 ~ 7h in Muffle furnace that will process through step (2), then at 700 ~ 800 DEG C
Roasting 5 ~ 7h, obtains described lithium iron phosphate/carbon nano tube compound material.
Silicon solar cell slurry the most according to claim 1, it is characterised in that the component of described glass dust is SiO2
15 ~ 30 parts, Bi2O3 10 ~ 20 parts, B2O3 10 ~ 20 parts, BaO/BaCO3 5 ~ 10 parts, γ-AL2O3 15 ~ 25 parts, ZnO 5 ~ 10 parts.
Silicon solar cell slurry the most according to claim 5, it is characterised in that described glass dust be mass ratio be 1:
The glass dust I and glass dust II of 1, the particle diameter of glass dust I is 5 ~ 15 μm, and the particle diameter of glass dust II is 1 ~ 5 μm.
Silicon solar cell slurry the most according to claim 1, it is characterised in that described silane coupler be KH550,
KH560 or KH602.
8. according to the preparation method of the silicon solar cell slurry described in claim 1 to 7 any one claim, its feature
Being, described preparation method is: first by lithium iron phosphate/carbon nano tube compound material, silane coupler, lecithin, carbomer and
Aerosil is dissolved in propylene glycol monobutyl ether and Oleum Terebinthinae, obtains thickness slurry；Again by argentum powder, copper powder, silver alclad alloyed powder
It is added in thickness slurry with glass dust, mix homogeneously, then grinds with three-roll grinder, obtain described slurry.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297954A (en) * | 2016-08-15 | 2017-01-04 | 陆鹏 | Electrode slurry used for solar batteries and preparation method thereof |
| CN107285637A (en) * | 2017-05-08 | 2017-10-24 | 江苏东昇光伏科技有限公司 | It is a kind of to be used to prepare glass dust of solar cell front side silver paste and preparation method thereof |
| CN109754898A (en) * | 2017-11-03 | 2019-05-14 | 丹阳八紫光能有限公司 | A kind of low cost photovoltaic silver paste |
| CN109754900A (en) * | 2017-11-03 | 2019-05-14 | 丹阳八紫光能有限公司 | A kind of silver paste that adhesive force is strong |
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| CN103811754A (en) * | 2014-01-22 | 2014-05-21 | 东风商用车有限公司 | Preparation method of lithium iron phosphate/carbon nanotube composite material |
| CN104064281A (en) * | 2013-03-21 | 2014-09-24 | 中国钢铁股份有限公司 | Silver conductive adhesive and manufacturing method thereof |
| US9039943B2 (en) * | 2011-03-28 | 2015-05-26 | Samsung Electronics Co., Ltd. | Conductive paste and electronic device and solar cell including an electrode formed using the conductive paste |
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| US9039943B2 (en) * | 2011-03-28 | 2015-05-26 | Samsung Electronics Co., Ltd. | Conductive paste and electronic device and solar cell including an electrode formed using the conductive paste |
| CN103021505A (en) * | 2012-12-10 | 2013-04-03 | 滁州恒恩光电科技有限公司 | Conducting silver aluminum slurry containing dicyclohexyl phthalate |
| CN104064281A (en) * | 2013-03-21 | 2014-09-24 | 中国钢铁股份有限公司 | Silver conductive adhesive and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106297954A (en) * | 2016-08-15 | 2017-01-04 | 陆鹏 | Electrode slurry used for solar batteries and preparation method thereof |
| CN107285637A (en) * | 2017-05-08 | 2017-10-24 | 江苏东昇光伏科技有限公司 | It is a kind of to be used to prepare glass dust of solar cell front side silver paste and preparation method thereof |
| CN109754898A (en) * | 2017-11-03 | 2019-05-14 | 丹阳八紫光能有限公司 | A kind of low cost photovoltaic silver paste |
| CN109754900A (en) * | 2017-11-03 | 2019-05-14 | 丹阳八紫光能有限公司 | A kind of silver paste that adhesive force is strong |
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Application publication date: 20160727 |