CN109215837A - A kind of conductive silver slurry used for solar batteries and preparation method thereof - Google Patents
A kind of conductive silver slurry used for solar batteries and preparation method thereof Download PDFInfo
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- CN109215837A CN109215837A CN201811352084.XA CN201811352084A CN109215837A CN 109215837 A CN109215837 A CN 109215837A CN 201811352084 A CN201811352084 A CN 201811352084A CN 109215837 A CN109215837 A CN 109215837A
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- conductive silver
- solar batteries
- silver powder
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 35
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 26
- 239000011701 zinc Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims description 22
- 239000004094 surface-active agent Substances 0.000 claims description 22
- 239000000654 additive Substances 0.000 claims description 21
- 230000000996 additive effect Effects 0.000 claims description 21
- 239000011230 binding agent Substances 0.000 claims description 21
- 239000004014 plasticizer Substances 0.000 claims description 21
- 239000013008 thixotropic agent Substances 0.000 claims description 21
- 239000003960 organic solvent Substances 0.000 claims description 20
- 229910052709 silver Inorganic materials 0.000 claims description 17
- 239000004332 silver Substances 0.000 claims description 17
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims description 16
- -1 alkyl glycosides Chemical class 0.000 claims description 14
- 239000003945 anionic surfactant Substances 0.000 claims description 14
- 239000004615 ingredient Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000002736 nonionic surfactant Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- QAPASXSIRIJMAD-WEVVVXLNSA-N (2e)-2-[(3,5-dichloro-4-hydroxyphenyl)methylidene]hexanoic acid Chemical compound CCCC\C(C(O)=O)=C/C1=CC(Cl)=C(O)C(Cl)=C1 QAPASXSIRIJMAD-WEVVVXLNSA-N 0.000 claims description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 7
- OWYSSKOUATWAAO-UHFFFAOYSA-N C1(=CC=CC=C1)C=1C(=C(C(=C(C1)O)C=C)C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound C1(=CC=CC=C1)C=1C(=C(C(=C(C1)O)C=C)C1=CC=CC=C1)C1=CC=CC=C1 OWYSSKOUATWAAO-UHFFFAOYSA-N 0.000 claims description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 7
- 229920001732 Lignosulfonate Polymers 0.000 claims description 7
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 7
- 239000000020 Nitrocellulose Substances 0.000 claims description 7
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 229910003069 TeO2 Inorganic materials 0.000 claims description 7
- 229920000180 alkyd Polymers 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052681 coesite Inorganic materials 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 229910052906 cristobalite Inorganic materials 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 229930182470 glycoside Natural products 0.000 claims description 7
- SNVLJLYUUXKWOJ-UHFFFAOYSA-N methylidenecarbene Chemical compound C=[C] SNVLJLYUUXKWOJ-UHFFFAOYSA-N 0.000 claims description 7
- 229920001220 nitrocellulos Polymers 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 7
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 7
- 239000011118 polyvinyl acetate Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 229910052682 stishovite Inorganic materials 0.000 claims description 7
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 7
- 229910052905 tridymite Inorganic materials 0.000 claims description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 7
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical class OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical group CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- MJEMIOXXNCZZFK-UHFFFAOYSA-N ethylone Chemical group CCNC(C)C(=O)C1=CC=C2OCOC2=C1 MJEMIOXXNCZZFK-UHFFFAOYSA-N 0.000 claims 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 1
- 239000011297 pine tar Substances 0.000 claims 1
- 229940068124 pine tar Drugs 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052710 silicon Inorganic materials 0.000 abstract description 10
- 239000010703 silicon Substances 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000005245 sintering Methods 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 8
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 7
- RBNWAMSGVWEHFP-UHFFFAOYSA-N trans-p-Menthane-1,8-diol Chemical compound CC(C)(O)C1CCC(C)(O)CC1 RBNWAMSGVWEHFP-UHFFFAOYSA-N 0.000 description 7
- 239000001856 Ethyl cellulose Substances 0.000 description 6
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical group CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 6
- 229920001249 ethyl cellulose Polymers 0.000 description 6
- 235000019325 ethyl cellulose Nutrition 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 6
- 229920000053 polysorbate 80 Polymers 0.000 description 6
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 5
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 description 4
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 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
- 230000008901 benefit Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 230000009974 thixotropic effect Effects 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
- H01B1/20—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
- H01B1/14—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
- 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
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to technical field of solar, and in particular to a kind of conductive silver slurry used for solar batteries and preparation method thereof contains conductive silver powder, unorganic glass powder, organic carrier, Nano-Zinc in the conductive silver slurry used for solar batteries；On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, described conductive silver powder 45-65 parts, 2-7 parts of unorganic glass powder, 35-45 parts of organic carrier, 0.3-0.7 parts of Nano-Zinc；The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size be 20-40 μm of silver powder weight ratio is 1:1.2-1.6.Conductive silver slurry of the present invention can be improved to be firmly bonded between the metal film and silicon substrate formed after solar energy conversion efficiency, sintering.
Description
Technical field
The present invention relates to technical field of solar, and in particular to a kind of conductive silver slurry used for solar batteries and its preparation side
Method.
Background technique
Solar energy is a kind of green energy resource, because its is pollution-free, inexhaustible, the advantages that is not limited by resource advantage due to it is more next
It is more valued by people, so solar battery comes into being.Solar battery is a kind of to convert solar energy into electric energy
Semiconductor devices, solar battery can generate electric current under conditions of illumination, and electric collecting is got up simultaneously by grid line and electrode
It transfers out.Existing silica-based solar cell generally passes through will leading containing conductive metal powder, glass powder and organic carrier
Plasma-based material is printed on silicon substrate, is dried and firing prepares electrode and back surface field.The rear electrode one of solar cell silicon substrate
As be anode, the electrocondution slurry of coating is usually back side silver paste；Back surface is generally coated containing aluminum conductive electric slurry, forms aluminium after sintering
Back surface field, it can significantly improve the open-circuit voltage and photoelectric conversion efficiency of battery；Front electrode is generally cathode, by plating anti-reflection
It penetrates after film using silk-screen printing front side silver paste, directly obtains positive silver electrode after then crossing continuous tunnel furnace sintering, front side silver paste is main
Be mixed and rolled by functional powder (metal powder), unorganic glass powder, organic carrier, metal powder as conductive phase,
Generally silver powder.Front electrode influences the receptance of solar energy in the light-receiving surface of silicon substrate, and depth-width ratio becomes existing research
Improve the emphasis and hot spot of cell photoelectric transformation efficiency.
Rear surface of solar cell silver paste is mainly made of silver powder, glass powder and organic carrier.Silver powder is as the function in slurry
Energy phase, plays conductive effect.It is connected into component since back side main grid needs to be welded together with metal electrode, silver layer
Solderability, soldering resistance, with the adhesive force of silicon substrate and electric conductivity at the important performance characteristic of back silver paste of solar cell.
In addition to these performance parameters, the cost of back silver paste of solar cell also drastically influences the production cost of solar battery.Cause
This, prepares a kind of solar battery back silver paste with excellent soldering resistance and solderability, strong adhesive force, high conductivity and low cost
Material constitutes a key technology main points in manufacture of solar cells.
Based on this, it is necessary to conductive silver slurry used for solar batteries and preparation method thereof is provided, to solve in the prior art
There are the problem of.
Summary of the invention
In view of the above-mentioned analysis to the prior art, after solar energy conversion efficiency, sintering can be improved the present invention provides one kind
The conductive silver slurry used for solar batteries and preparation method thereof being firmly bonded between the metal film and silicon substrate of formation.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of conductive silver slurry used for solar batteries contains conductive silver powder, inorganic in the conductive silver slurry used for solar batteries
Glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, described conductive silver powder 45-65 parts, inorganic glass
2-7 parts of glass powder, 35-45 parts of organic carrier, 0.3-0.7 parts of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.2-1.6.
Preferably, the unorganic glass powder includes following raw material: 55-65 parts of PbO, SiO23-8 parts, B2O3
2-6 parts, TeO215-25 parts, Al2O3 1-5 parts, TiO20.3-0.7 parts.
Preferably, the organic carrier includes organic solvent, binder and function additive, and weight shared by each ingredient
Number: 85-95 parts of organic solvent, 1-6 parts of organic binder, 0.5-1.5 parts of function additive.
Preferably, the organic solvent is 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Mixture.
Preferably, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin
One of resin is a variety of.
Preferably, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and each ingredient institute
The parts by weight accounted for: 5-10 parts of plasticizer, 15-25 parts of thixotropic agent, 20-30 parts of surfactant, 3-8 parts of coupling agent.
Preferably, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Preferably, the nonionic table of anionic surfactant and 35wt% in the surfactant containing 65wt%
Face activating agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene
Ether phosphate；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate
Ester.
Preferably, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Preferably, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first will
Nano-Zinc is scattered in organic carrier, then adds unorganic glass powder, and conductive silver powder is finally added under stirring conditions, continues
It is ground after stirring, obtains the conductive silver slurry used for solar batteries.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The solar battery being prepared using conductive silver slurry used for solar batteries provided by the invention, rear electrode are smooth
Densification, appearance are good, and adhesive force is good for electrode and silicon base, high with the weld strength of photovoltaic welding belt, photoelectricity with higher
Transfer efficiency.
Wherein, it is arranged in pairs or groups by the conductive silver powder of two kinds of different-grain diameters, plays bridging action, solar energy can be effectively improved
The photoelectric conversion efficiency of battery.
By the present invention in that may make solvent to have layer with terpinol, butyl carbitol and tributyl citrate mix and match
Secondary volatilization, to ensure that the quality of electrocondution slurry；
In addition, the Nano-Zinc that the present invention is added can cooperate with micron-sized conductive silver powder, the photoelectricity of solar battery is improved
Transfer efficiency；
Have 2 very strong ester groups of polarity in plasticizer in organic carrier of the present invention, with hydroxyethyl cellulose formed hydrogen bond, one
Aspect improves the viscosity of slurry, on the other hand can reduce the volatility of slurry；Surfactant can improve stream of slurry levelling；Thixotroping
Agent can be used to improve the thixotropic property of slurry, and slurry can also be made to keep good form after printing；Coupling agent can improve organic
The wetability of carrier and matrix improves the adhesive strength of slurry.
Specific embodiment
Form by the following examples is described in further detail above content of the invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all technologies based on realization belonging to above content of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
The conductive silver slurry used for solar batteries of the present embodiment contains conductive silver in the conductive silver slurry used for solar batteries
Powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, 45 parts of the conductive silver powder, unorganic glass powder
2 parts, 35 parts of organic carrier, 0.3 part of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.2.
Wherein, the unorganic glass powder includes following raw material: 55 parts of PbO, SiO23 parts, B2O32 parts, TeO2
15 parts, Al2O3 1 part, TiO20.3 part.
Wherein, the organic carrier includes organic solvent, binder and function additive, and parts by weight shared by each ingredient
Number: 85 parts of organic solvent, 1 part of organic binder, 0.5 part of function additive.
Wherein, the organic solvent is the mixed of 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Close object.
Wherein, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin
One of resin is a variety of.
Wherein, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and shared by each ingredient
Parts by weight: 5 parts of plasticizer, 15 parts of thixotropic agent, 20 parts of surfactant, 3 parts of coupling agent.
Wherein, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Wherein, the non-ionic surface of the anionic surfactant containing 65wt% and 35wt% are living in the surfactant
Property agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphorus
Acid esters；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
Wherein, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Wherein, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first by nanometer
Zinc is scattered in organic carrier, then adds unorganic glass powder, conductive silver powder is finally added under stirring conditions, continues to stir
After grind, obtain the conductive silver slurry used for solar batteries.
Embodiment 2
The conductive silver slurry used for solar batteries of the present embodiment contains conductive silver in the conductive silver slurry used for solar batteries
Powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, 65 parts of the conductive silver powder, unorganic glass powder
7 parts, 45 parts of organic carrier, 0.7 part of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.6.
Wherein, the unorganic glass powder includes following raw material: 65 parts of PbO, SiO28 parts, B2O36 parts, TeO2
25 parts, Al2O3 5 parts, TiO20.7 part.
Wherein, the organic carrier includes organic solvent, binder and function additive, and parts by weight shared by each ingredient
Number: 95 parts of organic solvent, 6 parts of organic binder, 1.5 parts of function additive.
Wherein, the organic solvent is the mixed of 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Close object.
Wherein, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin
One of resin is a variety of.
Wherein, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and shared by each ingredient
Parts by weight: 10 parts of plasticizer, 25 parts of thixotropic agent, 30 parts of surfactant, 8 parts of coupling agent.
Wherein, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Wherein, the non-ionic surface of the anionic surfactant containing 65wt% and 35wt% are living in the surfactant
Property agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphorus
Acid esters；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
Wherein, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Wherein, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first by nanometer
Zinc is scattered in organic carrier, then adds unorganic glass powder, conductive silver powder is finally added under stirring conditions, continues to stir
After grind, obtain the conductive silver slurry used for solar batteries.
Embodiment 3
The conductive silver slurry used for solar batteries of the present embodiment contains conductive silver in the conductive silver slurry used for solar batteries
Powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, 55 parts of the conductive silver powder, unorganic glass powder
4.5 parts, 40 parts of organic carrier, 0.5 part of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.4.
Wherein, the unorganic glass powder includes following raw material: 60 parts of PbO, SiO25.5 parts, B2O34 parts,
TeO220 parts, Al2O3 3 parts, TiO20.5 part.
Wherein, the organic carrier includes organic solvent, binder and function additive, and parts by weight shared by each ingredient
Number: 90 parts of organic solvent, 3.5 parts of organic binder, 1 part of function additive.
Wherein, the organic solvent is the mixed of 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Close object.
Wherein, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin
One of resin is a variety of.
Wherein, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and shared by each ingredient
Parts by weight: 7.5 parts of plasticizer, 20 parts of thixotropic agent, 25 parts of surfactant, 5.5 parts of coupling agent.
Wherein, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Wherein, the non-ionic surface of the anionic surfactant containing 65wt% and 35wt% are living in the surfactant
Property agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphorus
Acid esters；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
Wherein, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Wherein, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first by nanometer
Zinc is scattered in organic carrier, then adds unorganic glass powder, conductive silver powder is finally added under stirring conditions, continues to stir
After grind, obtain the conductive silver slurry used for solar batteries.
Embodiment 4
The conductive silver slurry used for solar batteries of the present embodiment contains conductive silver in the conductive silver slurry used for solar batteries
Powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, 48 parts of the conductive silver powder, unorganic glass powder
3 parts, 38 parts of organic carrier, 0.4 part of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.3.
Wherein, the unorganic glass powder includes following raw material: 58 parts of PbO, SiO24 parts, B2O33 parts, TeO2
18 parts, Al2O3 2 parts, TiO20.4 part.
Wherein, the organic carrier includes organic solvent, binder and function additive, and parts by weight shared by each ingredient
Number: 88 parts of organic solvent, 2 parts of organic binder, 0.8 part of function additive.
Wherein, the organic solvent is the mixed of 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Close object.
Wherein, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin
One of resin is a variety of.
Wherein, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and shared by each ingredient
Parts by weight: 6 parts of plasticizer, 18 parts of thixotropic agent, 23 parts of surfactant, 4 parts of coupling agent.
Wherein, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Wherein, the non-ionic surface of the anionic surfactant containing 65wt% and 35wt% are living in the surfactant
Property agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphorus
Acid esters；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
Wherein, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Wherein, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first by nanometer
Zinc is scattered in organic carrier, then adds unorganic glass powder, conductive silver powder is finally added under stirring conditions, continues to stir
After grind, obtain the conductive silver slurry used for solar batteries.
Embodiment 5
The conductive silver slurry used for solar batteries of the present embodiment contains conductive silver in the conductive silver slurry used for solar batteries
Powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, 62 parts of the conductive silver powder, unorganic glass powder
6 parts, 42 parts of organic carrier, 0.6 part of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.5.
Wherein, the unorganic glass powder includes following raw material: 62 parts of PbO, SiO27 parts, B2O35 parts, TeO2
22 parts, Al2O3 4 parts, TiO20.6 part.
Wherein, the organic carrier includes organic solvent, binder and function additive, and parts by weight shared by each ingredient
Number: 92 parts of organic solvent, 5 parts of organic binder, 1.2 parts of function additive.
Wherein, the organic solvent is the mixed of 5:3:1 by terpinol, butyl carbitol and tributyl citrate in mass ratio
Close object.
Wherein, the binder is selected from ethyl cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin
One of resin is a variety of.
Wherein, the function additive includes plasticizer, thixotropic agent, surfactant and coupling agent, and shared by each ingredient
Parts by weight: 9 parts of plasticizer, 22 parts of thixotropic agent, 28 parts of surfactant, 7 parts of coupling agent.
Wherein, the plasticizer is phthalic acid ester；The thixotropic agent is rilanit special.
Wherein, the non-ionic surface of the anionic surfactant containing 65wt% and 35wt% are living in the surfactant
Property agent；Anionic surfactant selects alpha-alkene sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphorus
Acid esters；Nonionic surfactant selects Tween-80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
Wherein, the coupling agent is using one of following silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
Wherein, the present invention also provides the preparation methods of above-mentioned conductive silver slurry used for solar batteries, including first by nanometer
Zinc is scattered in organic carrier, then adds unorganic glass powder, conductive silver powder is finally added under stirring conditions, continues to stir
After grind, obtain the conductive silver slurry used for solar batteries.
Comparative example 1
In addition to conductive silver powder partial size is unified for 1-5 μm, other constituent contents and preparation method and embodiment 1 are unanimously.
Comparative example 2
In addition to conductive silver powder is unified for 20-40 μm, other constituent contents and preparation method and embodiment 1 are unanimously.
Comparative example 3
In addition to saving Nano-Zinc, other constituent contents and preparation method and embodiment 1 are unanimously.
Experimental example
Above-mentioned resulting conductive silver slurry is applied to the preparation of solar battery sheet, selection polysilicon chip specification: 156 ×
156mm with a thickness of 180 μm before printing, first uses the silk-screen printing back side silver paste of 200 mesh with a thickness of 200 μm (before corrosion),
Drying, then use meshcount for the silk-screen printing back field aluminum paste material of 280 mesh, it dries, drying temperature is about 150 DEG C, the time
It is 5 minutes；Then the halftone that using 360 mesh, line width for 30 μm, line footpath is 16 μm, film thickness is 5 μm is by embodiment 1-5 and comparison
The front surface that the conductive silver slurry of example 1-3 preparation is respectively printed at silicon wafer forms three main gate line electrode wires, and printing weight in wet base is 30
± 5 milligrams, enter and dry sintering in continuous tunnel furnace, preheating temperature is 200-400 DEG C, and peak temperature is 900 DEG C, entire to cross continuous tunnel furnace
Time is 2 minutes or so, and peak value sintering time is 1 second or so, obtains the silicon that front surface has seed layer, seed layer grid line
Height is 2-5 μm, and then these silicon wafers are put into photoinduction plating electrolytic cell, pure using solar battery sheet as electrolysis cathode
For silver-colored stick as electrolytic anode, silver salt solution is electrolyte, is electroplated at a temperature of 35-40 DEG C.Electroplating time 5 minutes or so,
12-15 μm of silvering is formed, plating silver content is 120-170mg, cell piece is arrived into the sun using hot blast drying after slot out
Cell piece sample.
The solar battery sheet of embodiment 1-5 and comparative example 1-3 are performed the following performance tests, test result such as 1 institute of table
Show.
Table 1
| Project | Adhesive force (N) | Photoelectric conversion efficiency (%) | Specific contact resistivity (Ω .cm2) | Solderability | Soldering resistance |
| Embodiment 1 | 8.1 | 17.5 | 0.08 | Well | Well |
| Embodiment 2 | 8.3 | 17.8 | 0.07 | Well | Well |
| Embodiment 3 | 8.6 | 18.1 | 0.05 | Well | Well |
| Embodiment 4 | 8.2 | 17.9 | 0.07 | Well | Well |
| Embodiment 5 | 8.4 | 17.6 | 0.06 | Well | Well |
| Comparative example 1 | 6.9 | 16.6 | 0.15 | It is poor | It is poor |
| Comparative example 2 | 7.3 | 16.2 | 0.13 | It is poor | It is poor |
| Comparative example 3 | 7.6 | 16.9 | 0.10 | Generally | Generally |
It can be seen that from the test result of upper table 1 and be prepared using conductive silver slurry used for solar batteries provided by the invention
Solar battery, the weld strength of electrode and photovoltaic welding belt is high, has lower contact resistance, is substantially reducing battery production
Photoelectric conversion efficiency can be effectively improved while cost, and it can be seen from comparative example 1-3 conductive silver powder two kinds of partial size 1-
5 μm and 20-40 μm have coordinated and Nano-Zinc, and having for the solar battery of slurry preparation of the present invention can be made lower
Contact resistance, higher photoelectric conversion efficiency.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of conductive silver slurry used for solar batteries, which is characterized in that contain in the conductive silver slurry used for solar batteries
Conductive silver powder, unorganic glass powder, organic carrier, Nano-Zinc；
On the basis of the conductive silver slurry used for solar batteries of 100 parts by weight, described conductive silver powder 45-65 parts, inorganic glass
2-7 parts of glass powder, 35-45 parts of organic carrier, 0.3-0.7 parts of Nano-Zinc；
The silver powder mixture that the conductive silver powder is 1-5 μm and 20-40 μm by two kinds of partial sizes, the silver powder that partial size is 1-5 μm is ball
Shape silver powder, the silver powder that partial size is 20-40 μm is flake silver powder, and partial size is 1-5 μm of silver powder and partial size is 20-40 μm of silver powder weight
Ratio is 1:1.2-1.6.
2. conductive silver slurry used for solar batteries according to claim 1, which is characterized in that the unorganic glass powder includes
Following raw material: 55-65 parts of PbO, SiO23-8 parts, B2O32-6 parts, TeO215-25 parts, Al2O3 1-5 parts, TiO2
0.3-0.7 parts.
3. conductive silver slurry used for solar batteries according to claim 1, which is characterized in that the organic carrier includes
Solvent, binder and function additive, and parts by weight shared by each ingredient: 85-95 parts of organic solvent, organic binder 1-6
Part, 0.5-1.5 parts of function additive.
4. conductive silver slurry used for solar batteries according to claim 3, which is characterized in that the organic solvent is by pine tar
Alcohol, butyl carbitol and tributyl citrate are the mixture of 5:3:1 in mass ratio.
5. conductive silver slurry used for solar batteries according to claim 3, which is characterized in that the binder is selected from ethyl
One of cellulose, nitrocellulose, isophthalic alkyd resin, rosin resin resin are a variety of.
6. conductive silver slurry used for solar batteries according to claim 3, which is characterized in that the function additive includes increasing
Mould agent, thixotropic agent, surfactant and coupling agent, and parts by weight shared by each ingredient: 5-10 parts of plasticizer, thixotropic agent 15-
25 parts, 20-30 parts of surfactant, 3-8 parts of coupling agent.
7. conductive silver slurry used for solar batteries according to claim 6, which is characterized in that the plasticizer is adjacent benzene two
Formic acid esters；The thixotropic agent is rilanit special.
8. conductive silver slurry used for solar batteries according to claim 6, which is characterized in that contain in the surfactant
There are the anionic surfactant of 65wt% and the nonionic surfactant of 35wt%；Anionic surfactant selects alpha-olefin
Sulfonate, lignosulfonates or triphenyl vinyl phenol polyoxyethylene ether phosphate；Nonionic surfactant selects poly- sorb
Ester -80, alkyl glycosides, vinyl pyrrolidone or polyvinyl acetate.
9. conductive silver slurry used for solar batteries according to claim 6, which is characterized in that the coupling agent is using following
One of silane coupling agent:
KH570 molecular formula CH2=C (CH3)COO(CH2)3Si(OCH3)3),
KH560 molecular formula (CH2OCH)CH2O(CH2)3Si(OCH3)3,
KH550 molecular formula NH2(CH2)3Si(OC2H5)3,
NSC-151 molecular formula CH2=CHSi (OCH2CH3) 3,
SG-Si602 molecular formula NH2(CH2)2NH(CH2)3SiCH3(OCH3)2。
10. the preparation method of -9 described in any item conductive silver slurries used for solar batteries, feature exist according to claim 1
In, including organic carrier first is dispersed by Nano-Zinc, unorganic glass powder is then added, is finally added and leads under stirring conditions
Electric silver powder grinds after continuing stirring, obtains the conductive silver slurry used for solar batteries.
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| CN110120274A (en) * | 2019-06-05 | 2019-08-13 | 苏州晶银新材料股份有限公司 | A kind of back electrode slurry of full Al-BSF and its preparation method and application |
| CN114049985A (en) * | 2021-08-18 | 2022-02-15 | 中南大学 | Conductive paste organic carrier and preparation and application thereof |
| CN114267474A (en) * | 2021-12-27 | 2022-04-01 | 无锡帝科电子材料股份有限公司 | High-performance metallization paste for solar cell and preparation method thereof |
| CN117612765A (en) * | 2023-09-27 | 2024-02-27 | 淮安捷泰新能源科技有限公司 | Shallow surface layer precipitated high-performance silver paste and preparation method thereof |
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| CN106898412A (en) * | 2017-04-14 | 2017-06-27 | 北京市合众创能光电技术有限公司 | A kind of positive silver paste of crystal silicon solar energy battery containing microcrystalline glass powder |
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| CN101859609A (en) * | 2010-04-21 | 2010-10-13 | 北京科技大学 | Lead-free silver electrode slurry and preparation and using method thereof |
| CN102290119A (en) * | 2011-06-03 | 2011-12-21 | 广东风华高新科技股份有限公司 | Silver paste for solar cell |
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| CN110120274A (en) * | 2019-06-05 | 2019-08-13 | 苏州晶银新材料股份有限公司 | A kind of back electrode slurry of full Al-BSF and its preparation method and application |
| CN114049985A (en) * | 2021-08-18 | 2022-02-15 | 中南大学 | Conductive paste organic carrier and preparation and application thereof |
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| CN117612765A (en) * | 2023-09-27 | 2024-02-27 | 淮安捷泰新能源科技有限公司 | Shallow surface layer precipitated high-performance silver paste and preparation method thereof |
| CN117612765B (en) * | 2023-09-27 | 2024-08-30 | 淮安捷泰新能源科技有限公司 | Shallow surface layer precipitated high-performance silver paste and preparation method thereof |
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