CN109378108A - Positive silver paste and preparation method for perc crystal silicon solar energy battery - Google Patents
Positive silver paste and preparation method for perc crystal silicon solar energy battery Download PDFInfo
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- CN109378108A CN109378108A CN201811513298.0A CN201811513298A CN109378108A CN 109378108 A CN109378108 A CN 109378108A CN 201811513298 A CN201811513298 A CN 201811513298A CN 109378108 A CN109378108 A CN 109378108A
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- solar energy
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 47
- 239000004332 silver Substances 0.000 title claims abstract description 47
- 101100409194 Rattus norvegicus Ppargc1b gene Proteins 0.000 title claims abstract description 38
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000013078 crystal Substances 0.000 title claims abstract description 32
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 32
- 239000010703 silicon Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 22
- 239000011521 glass Substances 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims abstract description 55
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- 238000010791 quenching Methods 0.000 claims description 20
- 230000000171 quenching effect Effects 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 13
- 229910052593 corundum Inorganic materials 0.000 claims description 13
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 13
- 229910011255 B2O3 Inorganic materials 0.000 claims description 12
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000001856 Ethyl cellulose Substances 0.000 claims description 11
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 11
- 229910003069 TeO2 Inorganic materials 0.000 claims description 11
- 229910052681 coesite Inorganic materials 0.000 claims description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims description 11
- 229920001249 ethyl cellulose Polymers 0.000 claims description 11
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 229910052682 stishovite Inorganic materials 0.000 claims description 11
- 229910052905 tridymite Inorganic materials 0.000 claims description 11
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 10
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 9
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000002562 thickening agent Substances 0.000 claims description 8
- 239000013008 thixotropic agent Substances 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- 239000000080 wetting agent Substances 0.000 claims description 8
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000180 alkyd Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- RBNWAMSGVWEHFP-UHFFFAOYSA-N trans-p-Menthane-1,8-diol Chemical compound CC(C)(O)C1CCC(C)(O)CC1 RBNWAMSGVWEHFP-UHFFFAOYSA-N 0.000 claims description 5
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 229920003180 amino resin Polymers 0.000 claims description 3
- 229920001727 cellulose butyrate Polymers 0.000 claims description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 3
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 2
- QUKFNRQNPQSTPD-UHFFFAOYSA-N 2-methylpropanoic acid;pentane-1,3-diol Chemical compound CC(C)C(O)=O.CCC(O)CCO QUKFNRQNPQSTPD-UHFFFAOYSA-N 0.000 claims 1
- 238000004821 distillation Methods 0.000 claims 1
- 238000005245 sintering Methods 0.000 abstract description 20
- 238000002161 passivation Methods 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 16
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 11
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 9
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 9
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 9
- 239000012153 distilled water Substances 0.000 description 9
- 229910052697 platinum Inorganic materials 0.000 description 8
- 235000019445 benzyl alcohol Nutrition 0.000 description 5
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 4
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 4
- 235000005979 Citrus limon Nutrition 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229940055577 oleyl alcohol Drugs 0.000 description 4
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 4
- VPJOGDPLXNTKAZ-UHFFFAOYSA-N 2-methylpropanoic acid;2,2,4-trimethylpentane-1,3-diol Chemical class CC(C)C(O)=O.CC(C)C(O)C(C)(C)CO VPJOGDPLXNTKAZ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000012257 stirred material Substances 0.000 description 3
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 2
- 244000248349 Citrus limon Species 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JCTXKRPTIMZBJT-UHFFFAOYSA-N 2,2,4-trimethylpentane-1,3-diol Chemical compound CC(C)C(O)C(C)(C)CO JCTXKRPTIMZBJT-UHFFFAOYSA-N 0.000 description 1
- 229910017107 AlOx Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000013350 formula milk Nutrition 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 isobutyric acids Ester Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 235000020610 powder formula Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 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
- H01B1/20—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
- 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)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
- Conductive Materials (AREA)
Abstract
It is the spherical silver powder 35-50% of the first kind, the second near-spherical silver powder 20-35%, flake silver powder 4-30%, organic carrier 5-13%, glass powder 1-6% the invention discloses a kind of positive silver paste composition and its weight percent for perc crystal silicon solar energy battery.The invention enables solar cell front side silver pastes to have broader sintering window, under the premise of guaranteeing excellent electrical property and value of thrust, lower sintering temperature is adapted to, to be conducive to optimize contact of the back side aluminium paste with cell piece, and reduces damage of the back pastes to passivation layer.
Description
Technical field
The present invention relates to solar cell size technical fields, more particularly to one kind for perc crystal silicon solar electricity
The positive silver paste in pond and preparation method thereof.
Background technique
Solar energy power generating is had become world community and is solved the energy and economic hair due to its environmental protection and reproducible feature
One of contradictory optimal path between exhibition, environmental protection.Global photovoltaic industry is in fast-developing phase, the development in China in recent years
Especially rapidly.Requirement with people to Increasing Efficiency and cost declining is continuously improved, and passivation emitter and back local contact battery
(PERC) extensive attention is gradually caused, production capacity expands year by year.PERC battery becomes industry with its stable improved efficiency advantage
Change one of the preferred embodiment of high-efficiency battery.2 years following, PERC battery will become mainstream high-efficiency battery product in the market, often
The market share of rule battery will gradually decline.
The most important feature of PERC battery is one layer of AlOx film of backside deposition in cell piece, after then laser opens film again
Printed back slurry effectively reduces the surface recombination of carrier compared to traditional Al-BSF, greatly improves passivating back effect,
And then improve battery efficiency.The monolithic efficiency of monocrystalline PERC battery is 21.1%-21.7%, simultaneously because production technology is opposite
Simply (only increase two procedures: Al2O3Back passivation and laser scribing), producing line is easy to be transformed, therefore advantage of lower cost,
Most mainstream manufactories emphasis layout or plan layout PERC production line for manufacturing battery.
When PERC battery is sintered at temperature identical with current conventional polysilicon silion cell, it may appear that contact effect is poor, back
Starch adhesive material damages larger problem to passivation layer, therefore PERC battery is needed in the temperature lower than conventional polysilicon silion cell sintering temperature
The lower sintering of degree, this requires positive silver pastes still to be able to guarantee excellent electrical property and value of thrust under relatively low sintering temperature.
The current research for the positive silver paste for perc crystal silicon solar energy battery, it will be seen that close many wounds in Beijing
Can photoelectricity technology corporation, Ltd.'s application Chinese patent CN 108074656A, slurry described in the patent can burn at 730-820 DEG C
Knot, reduces sintering energy consumption.But the electrical property of the value of thrust to positive silver paste after sintering and cell piece is not measured and provides
Specific test data.
Summary of the invention
The purpose of the present invention is mainly solving existing technical problem technology, meet PERC battery sintering process to positive silver paste
Expect the new demand proposed, lower sintering temperature can be adapted to by providing one kind, while guarantee excellent electrical property and pulling force
The positive silver paste and preparation method for perc crystal silicon solar energy battery of value.
To achieve the goals above, the technical solution adopted by the present invention is that preparing a kind of for perc crystal silicon solar electricity
The positive silver paste in pond, the positive silver paste composition and its weight percent are as follows:
The first kind spherical silver powder 35-50%, the second near-spherical silver powder 20-35%, flake silver powder 4-30%.Organic carrier 5-
13%, glass powder 1-6%.
Optionally, the pattern of the two near-sphericals silver powder is spherical or spherical, the particle diameter distribution of the spherical silver powder of the first kind
D50It is 1.0-2.0 μm, tap density 4.5-5.5g/cm3, specific surface area 0.8-1.2m2/g；The grain of second near-spherical silver powder
Diameter is distributed D50It is 2.5-3.5 μm, tap density 5.5-6.5g/cm3, specific surface area 0.3-0.6m2/g。
Optionally, the flake silver powder pattern is sheet, and particle diameter distribution D50 is 3.0-5.0 μm, tap density 2.3-
2.8g/cm3, specific surface area 1.4-2.2m2/g。
Optionally, the organic carrier includes solvent, thickener, thixotropic agent, wetting agent and levelling agent, weight percent
It forms as follows:
Solvent is 80-93%, thickener 4-10%, thixotropic agent 1.5-5%, wetting agent 0.5-3%, and levelling agent is
0.3-2.5%.
Optionally, the thickener includes ethyl cellulose (being the several of 20cP, 45cP, 100cP including viscosity), butyric acid
One or more of cellulose, amino resins and alkyd resin.
Optionally, the thixotropic agent includes BYK-410, polyamide wax, one or more of rilanit special.
Optionally, the wetting agent includes BYK-111, AKN-1070, one or more of AKN-1146.
Optionally, the levelling agent includes BYK-333, AKN-1050, one or more of AKN-1131.
Optionally, the solvent includes benzyl alcohol, terpinol, tributyl citrate, butyl carbitol, butyl carbitol vinegar
One or more of acid esters, 2,2,4- trimethyl -1,3- pentanediol mono isobutyrate.
Optionally, the glass powder is low softening point glass powder, and softening point is between 380-410 DEG C, including TeO2, PbO,
Bi2O3, SiO2, Li2O, ZnO, B2O3, Al2O3, weight percent forms as follows: TeO2For 20-60%, PbO 10-40%,
Bi2O3For 5-30%, SiO2For 4-10%, Li2O is 0-3%, ZnO 0.5-4%, B2O3For 1-5%, Al2O3For 0.5-3%.
Preparation method of the invention, includes the following steps:
(1) prepared by organic carrier: forming by organic carrier, solvent, thickener, thixotropic agent, wetting agent and levelling agent are pressed
Heat at 50-80 DEG C after ratio mixing, stirred 1.5-3 hours with dispersion machine or blender, obtain it is homogeneous and transparent have it is airborne
Body；
(2) prepared by glass powder: weighing each component in the ratio in low softening point glass powder, is first carried out with double worm mixer
Then preliminary premixing pours into the glass metal of melting by mixed powder melting 1-3 hours at 1150-1300 DEG C
Water quenching is carried out in distilled water, and the glass powder after water quenching is put into ball mill ball milling 20-30h, is dried after taking-up, in vibrating screen
The glass powder that partial size is 0.5-3.5 μm is made in upper separation；
(3) the spherical silver powder 35-50% of the first kind, the second near-spherical silver powder 20-35%, piece the stirring and roll-in of slurry: are pressed
Shape silver powder 4-30%.Each component is added in planetary mixer for organic carrier 5-13%, the ratio of glass powder 1-6%, keeps it mixed
It closes uniformly, the slurry being stirred further is ground and dispersed with three-roll grinder, and roll-in 5-8 times to slurry fineness less than 10
μm, the positive silver paste suitable for perc crystal silicon solar energy battery is made.
By the above-mentioned solar cell front side silver paste that makes using commercialized halftone in the market, be printed onto it is industrialized
It is printed on the perc cell piece of back pastes, is sintered at 700-800 DEG C after drying, then to manufactured perc cell piece
Electrical property and value of thrust tested.
The beneficial effect comprise that
1, the prepared positive silver paste suitable for perc crystal silicon solar energy battery has broader sintering window, can
It is sintered at 700-800 DEG C, lower sintering temperature is conducive to optimize contacting with cell piece for back side aluminium paste, and reduces the back side
Damage of the slurry to passivation layer.
2, the glass powder formula reduces the glass transition temperature and softening temperature of glass powder, enable slurry compared with
It is sintered at a temperature of low；Formula of size has enough remaining glass systems in electrode after ensure that sintering, to ensure that positive electricity
The solderability and pulling force of pole, positive silver paste of the present invention are sintered post-tensioning force value at 700-800 DEG C and are all larger than 2N/mm.
3, positive silver paste of the invention uses the first kind, the metal powder gradation of the second near-spherical silver powder and flake silver powder mixing
Scheme has bigger depth-width ratio so that slurry is more closely knit after sintering, also further mentions with cell piece surface contact effect
Height, so that sintered cell piece has excellent electrical property, incident photon-to-electron conversion efficiency improves 0.3-0.5%.
4, the preparation method of positive silver paste of the present invention is simple, easily operated, convenient for industry amplification and realizes industrialization,
And various aspects of performance still is able to guarantee at a relatively low sintering temperature, effectively reduces sintering energy consumption.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art to protection scope of the present invention make it is apparent define, and cannot be used as a limitation limitation
Protection scope of the present invention.
Embodiment 1
Organic carrier preparation: each component is weighed by weight percentage, including 80% solvent (wherein terpinol 55%, lemon
Lemon acid tributyl 20%, 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates 5%), 10% ethyl cellulose (viscosity
45cP), 3% BYK-410,2% polyamide wax, 3% AKN-1070,2% BYK-333 is placed in agitator tank, 80
It is heated at DEG C, is stirred 1.5 hours with dispersion machine, obtain homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 46% TeO2, 18% PbO, 20%
Bi2O3, 8.5% SiO2, 1% Li2O, 2.5% ZnO, 2% B2O3With 2% Al2O3, first with double worm mixer into
The preliminary premixing of row, is put into platinum crucible for mixed powder, melting 2 hours at 1250 DEG C, then by the glass of melting
Liquid, which pours into, carries out water quenching in distilled water；Glass powder after water quenching is put into ball mill ball milling 23h after taking-up is dried to shake
It is separated on dynamic sieve, glass powder is made.
Slurry mixing: the 35% spherical silver powder (D of the first kind is weighed by weight percentage50It is 1.5 μm, tap density is
5.1g/cm3, specific surface area 1.0m2/ g), 20% the second near-spherical silver powder (D50It is 3.5 μm, tap density 6.4g/cm3,
Specific surface area is 0.3m2/ g), 30% flake silver powder (D50It is 5.0 μm, tap density 2.8g/cm3, specific surface area is
1.4m2/ g), 10.7% organic carrier and 4.3% glass powder, be added planetary mixer in, make its be uniformly mixed, be stirred
Slurry further ground and dispersed with three-roll grinder, roll-in 5 times, be made be suitable for perc crystal silicon solar energy battery
Positive silver paste.
Embodiment 2
Organic carrier preparation: weighing each component by weight percentage, including 85% solvent (wherein benzyl alcohol 10%, pine
Oleyl alcohol 30%, butyl carbitol 25%, butyl carbitol acetate 15%, 2,2,4- trimethyl -1,3- pentanediol list isobutyric acids
Ester 5%), 2% ethyl cellulose (viscosity 100cP), 5% alkyd resin, 3.5% BYK-410,2% BYK-111,
1% BYK-333,1.5% AKN-1131 are placed in agitator tank, are heated at 55 DEG C, are stirred 3 hours, are obtained with dispersion machine
Homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 42% TeO2, 24% PbO, 15%
Bi2O3, 8% SiO2, 2% Li2O, 4% ZnO, 4.5% B2O3With 0.5% Al2O3, first with double worm mixer into
The preliminary premixing of row, is put into platinum crucible for mixed powder, melting 1 hour at 1300 DEG C, then by the glass of melting
Liquid, which pours into, carries out water quenching in distilled water；Glass powder after water quenching is put into ball mill ball milling 27h after taking-up is dried to shake
It is separated on dynamic sieve, glass powder is made.
Slurry mixing: the 35% spherical silver powder (D of the first kind is weighed by weight percentage50It is 2.0 μm, tap density is
5.5g/cm3, specific surface area 0.8m2/ g), 35% the second near-spherical silver powder (D50It is 2.8 μm, tap density 6.0g/cm3,
Specific surface area is 0.5m2/ g), 15% flake silver powder (D50It is 3.0 μm, tap density 2.3g/cm3, specific surface area is
2.1m2/ g), 12.8% organic carrier and 2.2% glass powder, be added planetary mixer in, make its be uniformly mixed, be stirred
Slurry further ground and dispersed with three-roll grinder, roll-in 6 times, be made be suitable for perc crystal silicon solar energy battery
Positive silver paste.
Embodiment 3
Organic carrier preparation: weighing each component by weight percentage, including 89% solvent (wherein benzyl alcohol 20%, pine
Oleyl alcohol 40%, tributyl citrate 15%, butyl carbitol 14%), 4% ethyl cellulose (viscosity 20cP), 2% butyric acid
Cellulose, 2% polyamide wax, 1.5% AKN-1070,1.5% AKN-1050 are placed in agitator tank, are added at 60 DEG C
Heat is stirred 2.5 hours with dispersion machine, obtains homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 60% TeO2, 20% PbO, 5% Bi2O3,
7.6% SiO2, 1.4% Li2O, 2% ZnO, 1% B2O3With 3% Al2O3, first carried out tentatively with double worm mixer
Premixing, mixed powder is put into platinum crucible, then melting 3 hours at 1150 DEG C are poured into the glass metal of melting
Water quenching is carried out in distilled water；Glass powder after water quenching is put into ball mill ball milling 30h, after taking-up is dried, on the vibrating
Glass powder is made in separation.
Slurry mixing: the 40% spherical silver powder (D of the first kind is weighed by weight percentage50It is 1.2 μm, tap density is
4.6g/cm3, specific surface area 1.1m2/ g), 29% the second near-spherical silver powder (D50It is 2.8 μm, tap density 6.0g/cm3,
Specific surface area is 0.5m2/ g), 20% flake silver powder (D50It is 4.0 μm, tap density 1.6g/cm3, specific surface area is
0.8m2/ g), 5% organic carrier and 6% glass powder, be added planetary mixer in, make its be uniformly mixed, the slurry being stirred
Material is further ground and is dispersed with three-roll grinder, roll-in 6 times, is made and is being suitable for perc crystal silicon solar energy battery just
Silver paste.
Embodiment 4
Organic carrier preparation: each component is weighed by weight percentage, including 93% solvent (wherein benzyl alcohol 25%, lemon
Lemon acid tributyl 40%, butyl carbitol acetate 8%, 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates 20%), 2%
Ethyl cellulose (viscosity 45cP), 2% amino resins, 1.5% rilanit special, 1.2% AKN-1146,0.3%
BYK-333 be placed in agitator tank, heated at 70 DEG C, with dispersion machine stir 2.5 hours, obtain it is homogeneous and transparent have it is airborne
Body.
Glass powder preparation: each component is weighed by weight percentage, including 56% TeO2, 12% PbO, 10%
Bi2O3, 10% SiO2, 3% Li2O, 3.5% ZnO, 3% B2O3With 2.5% Al2O3, first with double worm mixer into
The preliminary premixing of row, is put into platinum crucible for mixed powder, melting 2.5 hours at 1200 DEG C, then by the glass of melting
Glass liquid, which pours into, carries out water quenching in distilled water；Glass powder after water quenching is put into ball mill ball milling 20h, after taking-up is dried,
It is separated on vibrating screen, glass powder is made.
Slurry mixing: the 40% spherical silver powder (D of the first kind is weighed by weight percentage50It is 1.2 μm, tap density is
4.6g/cm3, specific surface area 1.1m2/ g), 26% the second near-spherical silver powder (D50It is 2.8 μm, tap density 6.0g/cm3,
Specific surface area is 0.5m2/ g), 25% flake silver powder (D50It is 5.0 μm, tap density 2.8g/cm3, specific surface area is
1.4m2/ g), 7.5% organic carrier and 1.5% glass powder, be added planetary mixer in, make its be uniformly mixed, be stirred
Slurry further ground and dispersed with three-roll grinder, roll-in 8 times, be made be suitable for perc crystal silicon solar energy battery
Positive silver paste.
Embodiment 5
Organic carrier preparation: weighing each component by weight percentage, including 85% solvent (wherein benzyl alcohol 20%, pine
Oleyl alcohol 25%, tributyl citrate 23%, 7%, 2,2,4- trimethyl -1,3- pentanediol mono isobutyrate of butyl carbitol
10%), 3% ethyl cellulose (viscosity 20cP), 3% alkyd resin, 3.5% polyamide wax, 1.5% hydrogenated castor
Oil, 2.2% BYK-111,1.8% AKN-1050 are placed in agitator tank, are heated at 65 DEG C, small with dispersion machine stirring 2.5
When, obtain homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 38% TeO2, 37% PbO, 8% Bi2O3,
9% SiO2, 0.2% Li2O, 1% ZnO, 5% B2O3With 1.8% Al2O3, first carried out tentatively with double worm mixer
Premixing, mixed powder is put into platinum crucible, then melting 2 hours at 1200 DEG C are poured into the glass metal of melting
Water quenching is carried out in distilled water；Glass powder after water quenching is put into ball mill ball milling 25h, after taking-up is dried, on the vibrating
Glass powder is made in separation.
Slurry mixing: the 45% spherical silver powder (D of the first kind is weighed by weight percentage50It is 1.5 μm, tap density is
5.1g/cm3, specific surface area 1.0m2/ g), 32% the second near-spherical silver powder (D50It is 3.5 μm, tap density 6.4g/cm3,
Specific surface area is 0.3m2/ g), 12% flake silver powder (D50It is 3.0 μm, tap density 2.3g/cm3, specific surface area is
2.1m2/ g), 9% organic carrier and 2% glass powder, be added planetary mixer in, make its be uniformly mixed, the slurry being stirred
Material is further ground and is dispersed with three-roll grinder, roll-in 7 times, is made and is being suitable for perc crystal silicon solar energy battery just
Silver paste.
Embodiment 6
Organic carrier preparation: each component is weighed by weight percentage, including 90% solvent (wherein terpinol 45%, fourth
Base carbitol 25%, 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates 20%), 1% ethyl cellulose (viscosity
100cP), 4% cellulose butyrate, 3.3% BYK-410,0.5% AKN-1146,1.2% AKN-1131 are placed in stirring
It in tank, is heated at 75 DEG C, is stirred 2 hours with dispersion machine, obtain homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 22% TeO2, 40% PbO, 25%
Bi2O3, 7% SiO2, 1.2% Li2O, 1.5% ZnO, 1.8% B2O3With 1.5% Al2O3, first mixed with double helix
Machine carries out preliminary premixing, and mixed powder is put into platinum crucible, melting 1.5 hours at 1300 DEG C, then will melting
Glass metal pour into and carry out water quenching in distilled water；Glass powder after water quenching is put into ball mill ball milling 21h, taking-up is dried
Afterwards, it separates on the vibrating, glass powder is made.
Slurry mixing: the 45% spherical silver powder (D of the first kind is weighed by weight percentage50It is 2.0 μm, tap density is
5.5g/cm3, specific surface area 0.8m2/ g), 31% the second near-spherical silver powder (D50It is 2.8 μm, tap density 6.0g/cm3,
Specific surface area is 0.5m2/ g), 10% flake silver powder (D50It is 4.0 μm, tap density 2.6g/cm3, specific surface area is
1.8m2/ g), 10.5% organic carrier and 3.5% glass powder, be added planetary mixer in, make its be uniformly mixed, be stirred
Slurry further ground and dispersed with three-roll grinder, roll-in 7 times, be made be suitable for perc crystal silicon solar energy battery
Positive silver paste.
Embodiment 7
Organic carrier preparation: weighing each component by weight percentage, including 82% solvent (wherein benzyl alcohol 15%, pine
Oleyl alcohol 20%, tributyl citrate 26%, butyl carbitol acetate 21%), 3% ethyl cellulose (viscosity 45cP), 3%
Cellulose butyrate, 2.5% alkyd resin, 2% BYK-410,2.5% rilanit special, 1% BYK-111,
1.5% AKN-1070,2.5% AKN-1050 are placed in agitator tank, are heated at 60 DEG C, are stirred 3 hours, are obtained with dispersion machine
To homogeneous and transparent organic carrier.
Glass powder preparation: each component is weighed by weight percentage, including 51% TeO2, 10% PbO, 30%
Bi2O3, 4% SiO2, 0.5% ZnO, 1.5% B2O3With 3% Al2O3, first tentatively pre- is carried out with double worm mixer
Mixing, is put into platinum crucible for mixed powder, then the glass metal of melting is poured into steaming by melting 2.5 hours at 1150 DEG C
Water quenching is carried out in distilled water；Glass powder after water quenching is put into ball mill ball milling 28h after taking-up is dried to divide on the vibrating
From obtained glass powder.
Slurry mixing: the 50% spherical silver powder (D of the first kind is weighed by weight percentage50It is 1.5 μm, tap density is
5.1g/cm3, specific surface area 1.0m2/ g), 30% the second near-spherical silver powder (D50It is 2.5 μm, tap density 5.6g/cm3,
Specific surface area is 0.6m2/ g), 4% flake silver powder (D50It is 5.0 μm, tap density 2.8g/cm3, specific surface area 1.4m2/
G), 11% organic carrier and 5% glass powder, be added in planetary mixer, be uniformly mixed it, the slurry being stirred is with three
Roller mill is further ground and is dispersed, and roll-in 8 times, the positive silver paste suitable for perc crystal silicon solar energy battery is made
Material.
Comparative example: existing perc crystal silicon solar energy battery front side silver paste is formulated as follows:
Organic carrier: weighing by weight percentage, including 86% solvent (wherein terpinol 52%, tributyl citrate
13%, dibutyl phthalate 21%), 7% ethyl cellulose (viscosity 45cP), 2% alkyd resin, 2% BYK-
410,1% BYK-111,2% BYK-203 is placed in agitator tank, is heated at 65 DEG C, is stirred 2.5 hours with dispersion machine.
Glass powder: weighing by weight percentage, including 35.8% B2O3, 51.2% Bi2O3, 7.7% Sb2O3,
4.2% ZnO, 0.8% Al2O3, 0.2% ZrO2With 0.1% MoO3, after carrying out preliminary premixing, powder is put into
Platinum crucible, melting 3 hours at 1100 DEG C, then the glass metal of melting being poured into, water quenching is carried out in distilled water；After water quenching
Glass powder is put into ball mill ball milling for 24 hours, after taking-up is dried, separates on the vibrating, and glass powder is made.
Slurry mixing: 62% 1 (D of spherical silver powder is weighed by weight percentage50It is 2.5 μm, tap density 5.6g/
cm3, specific surface area 0.7m2/ g), 23% 2 (D of spherical silver powder50It is 0.8 μm, tap density 4.3g/cm3, specific surface area is
2.4m2/ g), 13.8% organic carrier and 1.2% glass powder, be added planetary mixer in be uniformly mixed, the slurry being stirred
Material is used three-roll grinder roll-in 6 times, and positive silver paste is made.
The slurry properties data of embodiment 1-7 and comparative example are shown in Table 1, by what is prepared in above-described embodiment 1-7 and comparative example
Solar cell front side silver paste is printed onto the industrialized back side that printed and is starched using commercialized 380 mesh halftone in the market
On the perc cell piece of material, it is sintered (specific sintering temperature is shown in Table 2) at 700-800 DEG C after drying, it is above by comparative example slurry
Manufactured perc cell piece is known as comparative example 2.Furthermore a comparative example slurry other application condition is prepared again to be same as above, it is normal at it
It is applicable in sintered perc cell piece, referred to as comparative example 1 under sintering temperature (880 DEG C).By good all perc electricity made above
The test of the progress electrical property and value of thrust of pond piece.The electrical property and pulling force Value Data measured with IV tester and tensile testing machine
It is shown in Table 2.
Table 1
| Sample ID | Solid content (m%) | Fineness (μm) | Viscosity (Pas) |
| Embodiment 1 | 89.5 | 9 | 306.1 |
| Embodiment 2 | 87.6 | 9 | 290.1 |
| Embodiment 3 | 92.6 | 8 | 330.4 |
| Embodiment 4 | 91.9 | 6 | 319.2 |
| Embodiment 5 | 90.8 | 8 | 311.7 |
| Embodiment 6 | 89.6 | 7 | 306.3 |
| Embodiment 7 | 89.2 | 6 | 298.7 |
| Comparative example | 86.5 | 9 | 290.9 |
Table 2
By comparative example it can be seen from 2 data of table, (comparative example 1) properties are fine under its applicable sintering temperature, and
The phenomenon that there is apparent series resistance Rs and increases in (comparative example 2) at a relatively low sintering temperature, and fill factor FF is reduced,
And then the numerical value of photoelectric conversion efficiency EFF has been influenced, furthermore value of thrust is significantly reduced.1-7 of embodiment of the present invention preparation
The positive silver paste for perc crystal silicon solar energy battery still has preferable excellent under relatively low sintering temperature
In the electrical property and value of thrust of existing product.
The above is only a preferred embodiment of the present invention, it is not intended to limit the scope of the invention, for this
For the those of ordinary skill of technical field, without departing from the technical principles of the invention, several improvement can also be made
And retouching, it is all using equivalent structure transformation made by present specification, it is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (13)
1. a kind of positive silver paste for perc crystal silicon solar energy battery, it is characterised in that positive silver paste composition and its weight hundred
Divide ratio as follows:
The first kind spherical silver powder 35-50%, the second near-spherical silver powder 20-35%, flake silver powder 4-30%, organic carrier 5-13%, glass
Glass powder 1-6%.
2. a kind of positive silver paste for perc crystal silicon solar energy battery as described in claim 1, it is characterised in that described
The pattern of the spherical silver powder of the first kind and the second near-spherical silver powder is spherical or spherical.
3. a kind of positive silver paste for perc crystal silicon solar energy battery as described in claim 1, it is characterised in that first
The particle diameter distribution D of near-spherical silver powder50It is 1.0-2.0 μm, tap density 4.5-5.5g/cm3, specific surface area 0.8-1.2m2/
g；The particle diameter distribution D of second near-spherical silver powder50It is 2.5-3.5 μm, tap density 5.5-6.5g/cm3, specific surface area 0.3-
0.6m2/g。
4. a kind of positive silver paste for perc crystal silicon solar energy battery as described in claim 1, it is characterised in that described
The particle diameter distribution D50 of flake silver powder is 3.0-5.0 μm, tap density 2.3-2.8g/cm3, specific surface area 1.4-2.2m2/g。
5. a kind of positive silver paste for perc crystal silicon solar energy battery as described in claim 1, it is characterised in that described
Organic carrier includes solvent, thickener, thixotropic agent, wetting agent and levelling agent, and weight percent composition is as follows:
Solvent is 80-93%, thickener 4-10%, thixotropic agent 1.5-5%, wetting agent 0.5-3%, levelling agent 0.3-
2.5%。
6. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 5, it is characterised in that described
Thickener includes one or more of ethyl cellulose, cellulose butyrate, amino resins and alkyd resin.
7. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 6, it is characterised in that described
Ethyl cellulose includes that viscosity is 20cP, 45cP or 100cP.
8. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 5, it is characterised in that described
Thixotropic agent includes BYK-410, polyamide wax, one or more of rilanit special.
9. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 5, it is characterised in that described
Wetting agent includes BYK-111, AKN-1070, one or more of AKN-1146.
10. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 5, it is characterised in that described
Levelling agent includes BYK-333, AKN-1050, one or more of AKN-1131.
11. a kind of positive silver paste for perc crystal silicon solar energy battery as claimed in claim 5, it is characterised in that described
Solvent includes benzyl alcohol, terpinol, tributyl citrate, butyl carbitol, butyl carbitol acetate, 2,2,4- trimethyl-
One or more of 1,3- pentanediol mono isobutyrate.
12. a kind of positive silver paste for perc crystal silicon solar energy battery as described in claim 1, it is characterised in that described
Glass powder is low softening point glass powder, and softening point is between 380-410 DEG C, by TeO2, PbO, Bi2O3, SiO2, Li2O, ZnO,
B2O3, Al2O3Composition, weight percent composition are as follows: TeO2For 20-60%, PbO 10-40%, Bi2O3For 5-30%, SiO2For
4-10%, Li2O is 0-3%, ZnO 0.5-4%, B2O3For 1-5%, Al2O3For 0.5-3%.
13. such as a kind of described in any item systems of the positive silver paste for perc crystal silicon solar energy battery of claim 1-12
Preparation Method, it is characterised in that include the following steps:
(1) prepared by organic carrier: forming by organic carrier, in proportion by solvent, thickener, thixotropic agent, wetting agent and levelling agent
It is heated at 50-80 DEG C after mixing, is stirred 1.5-3 hours with dispersion machine or blender, obtain homogeneous and transparent organic carrier；
(2) prepared by glass powder: weighing each component in the ratio in low softening point glass powder, is first carried out tentatively with double worm mixer
Premixing the glass metal of melting is then poured into distillation by mixed powder melting 1-3 hours at 1150-1300 DEG C
Water quenching is carried out in water, and the glass powder after water quenching is put into ball mill ball milling 20-30h, is dried after taking-up, is divided on the vibrating
From the glass powder that obtained partial size is 0.5-3.5 μm；
(3) the spherical silver powder 35-50% of the first kind, the second near-spherical silver powder 20-35%, flake silver powder the stirring and roll-in of slurry: are pressed
Each component is added in planetary mixer for 4-30%, organic carrier 5-13%, the ratio of glass powder 1-6%, is uniformly mixed it, stirs
The slurry mixed further is ground and is dispersed with three-roll grinder, roll-in 5-8 times to slurry fineness less than 10 μm, be made suitable
Positive silver paste for perc crystal silicon solar energy battery.
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| CN110010302A (en) * | 2019-03-05 | 2019-07-12 | 苏州市贝特利高分子材料股份有限公司 | A method of preparing PERC battery silver paste |
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| CN108074656A (en) * | 2017-12-29 | 2018-05-25 | 北京市合众创能光电技术有限公司 | A kind of silk-screen printing PERC crystal silicon solars main grid positive silver paste and preparation method thereof |
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| CN109961870A (en) * | 2019-03-01 | 2019-07-02 | 泰州中来光电科技有限公司 | A kind of crystal-silicon solar cell black silver paste and preparation method thereof |
| CN110010302A (en) * | 2019-03-05 | 2019-07-12 | 苏州市贝特利高分子材料股份有限公司 | A method of preparing PERC battery silver paste |
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| CN111128436B (en) * | 2019-07-12 | 2022-11-04 | 杭州正银电子材料有限公司 | Crystalline silicon solar cell positive silver paste suitable for positive electrode aluminum oxide-silicon nitride laminated passivation and preparation method thereof |
| CN112562884A (en) * | 2019-11-07 | 2021-03-26 | 陕西彩虹新材料有限公司 | Preparation method of low-sheet-resistance conductive silver paste |
| CN111540501A (en) * | 2020-05-04 | 2020-08-14 | 上海匡宇科技股份有限公司 | Glass powder and solar cell anode conductive silver paste prepared from same |
| CN111548021A (en) * | 2020-05-04 | 2020-08-18 | 上海匡宇科技股份有限公司 | Mixed glass powder and conductive silver paste prepared from same |
| CN114464342A (en) * | 2022-01-20 | 2022-05-10 | 无锡晶睿光电新材料有限公司 | Low-resistivity low-temperature solar silver paste and preparation method thereof |
| CN114615798A (en) * | 2022-04-01 | 2022-06-10 | 广州三则电子材料有限公司 | Zero-shrinkage hole-filling conductive slurry and preparation method thereof |
| CN114615798B (en) * | 2022-04-01 | 2022-11-29 | 广州三则电子材料有限公司 | Zero-shrinkage hole-filling conductive slurry and preparation method thereof |
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