CN106816203A - Crystal silicon solar energy battery high-tensile strength positive silver paste and preparation method thereof - Google Patents
Crystal silicon solar energy battery high-tensile strength positive silver paste and preparation method thereof Download PDFInfo
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- CN106816203A CN106816203A CN201710165688.2A CN201710165688A CN106816203A CN 106816203 A CN106816203 A CN 106816203A CN 201710165688 A CN201710165688 A CN 201710165688A CN 106816203 A CN106816203 A CN 106816203A
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 32
- 239000004332 silver Substances 0.000 title claims abstract description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 27
- 239000010703 silicon Substances 0.000 title claims abstract description 27
- 239000013078 crystal Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000011817 metal compound particle Substances 0.000 claims abstract description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 5
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 5
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- 239000000969 carrier Substances 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 4
- 229910052762 osmium Inorganic materials 0.000 claims abstract description 4
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 4
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 4
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- -1 butyl carbitol acetic acid Ester Chemical class 0.000 claims description 6
- 235000014366 other mixer Nutrition 0.000 claims description 6
- 229920002301 cellulose acetate Polymers 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- IDQBJILTOGBZCR-UHFFFAOYSA-N 1-butoxypropan-1-ol Chemical compound CCCCOC(O)CC IDQBJILTOGBZCR-UHFFFAOYSA-N 0.000 claims description 4
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 4
- 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 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 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 4
- 229920000180 alkyd Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 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 4
- 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 4
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 claims description 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical group CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000001856 Ethyl cellulose Substances 0.000 claims description 3
- 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 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 229920001249 ethyl cellulose Polymers 0.000 claims description 3
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- 239000002305 electric material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 19
- 239000002002 slurry Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000012776 electronic material Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 235000013339 cereals Nutrition 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229910003069 TeO2 Inorganic materials 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229910052789 astatine Inorganic materials 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000009288 screen filtration Methods 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical group CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 description 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Sustainable Development (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photovoltaic Devices (AREA)
- Conductive Materials (AREA)
Abstract
The present invention relates to technical field of electronic materials, especially a kind of crystal silicon solar energy battery high-tensile strength positive silver paste, the weight/mass percentage composition of each component is：1~90% silver powder, 5~15% organic carriers, 1~8% glass dust, auxiliary agent 0~3%, pulling force auxiliary agent 0.1~3%, each component content sum is 100%.Pulling force auxiliary agent described in the pulling force auxiliary agent is one or more metals or metal oxide or its metal compound particles selected from Zr, Cr, Co, Mo, Te, Ru, Rh, Pd, W, Re, Os, Ir, Pt, Li, Ru, Zn, Sn, Sb.Metal or metal oxide or its metal compound particles are with the addition of in slurry of the present invention, the welding pulling force of front electrode is improve, so as to improve the service life of cell piece to a certain extent.
Description
Technical field
The present invention relates to technical field of electronic materials, especially crystal silicon solar energy battery high-tensile strength positive silver paste and its system
Preparation Method.
Background technology
Continuous growth with the development and the mankind of social economy to energy demand, the finiteness of fossil energy and makes
The great attention of people has been caused to the influence caused by global climate and environment during.Therefore, present people get over
To be concerned about the utilization to regenerative resources such as wind energy, water energy, geothermal energy, solar energy more, wherein solar energy most induces one to note
Mesh.At present, China has turned into largest production and the exported country of silicon solar cell, but, many high-performance core materials（Such as lead
Electric silver paste etc.）Monopolized by overseas enterprise, and conductive silver paste is the main raw material(s) for preparing solar cell.Improve crystalline silicon
The life-span of solar cell module is also one of emphasis of market concern, and the research report of the component stability that some have been delivered claims
Phase separation in solder between lead and tin is the basic reason of welding performance decline, and this phase separation causes the welding system to become more
Plus it is fragile, so as to the service life for causing battery is reduced.
The life-span of crystal silicon solar battery component is typically promised to undertake more than 20 years.Current photovoltaic industry is still always positive
Identification and the influence factor of assessment harm component stability.Sa Diya National Laboratories of the U.S. have delivered long-term outside a component room
Test report, shows that the series resistance of component is maximum possibly for the stability influence of component long-term use, with annual 0.5%
Velocity attenuation.Therefore, the solar battery front side conductive silver paste of welding pulling force high is developed, for forming China's solar-electricity
Pond promotes the technological innovation of China's solar cell industry with silver powder and electrocondution slurry independent intellectual property right is applied mechanically, and meets future
The huge needs in market are of great importance.
The content of the invention
In order to overcome the shortcomings of existing technology, the invention provides crystal silicon solar energy battery high-tensile strength positive silver paste and
Its preparation method.
The technical solution adopted for the present invention to solve the technical problems is：A kind of crystal silicon solar energy battery high-tensile strength is just silver-colored
Slurry, its component is as follows：
1~90% silver powder,
0.1~3% pulling force auxiliary agent,
5~15% organic carriers,
1~8% glass dust,
0~3% auxiliary agent.
Silver powder is conductive material.Pulling force auxiliary agent is with the addition of in slurry of the present invention, on the premise of electrical property is not influenceed, is improved
The welding pulling force of front electrode, improves the service life of battery to a certain extent.
According to another embodiment of the invention, further include, the silver powder is conductive material, average grain diameter 1~3.5
Micron, 4.5~6g/m of tap density3Spherical silver powder.
According to another embodiment of the invention, further include, the pulling force auxiliary agent described in the pulling force auxiliary agent be from Zr,
At least one metal or metal oxygen selected in Cr, Co, Mo, Te, Ru, Rh, Pd, W, Re, Os, Ir, Pt, Li, Ru, Zn, Sn, Sb
Compound or its metal compound particles.
According to another embodiment of the invention, further include, the organic carrier be at least one organic resin with
The organic solvent composition of different evaporation rates；
Organic resin accounts for the 2%~50% of the mass percent of organic carrier, and organic resin is selected from rosin, ethyl cellulose, epoxy
At least one in resin, cellulose acetate, acrylic resin, polyvinyl resin, polyester, alkyd resin, polyamide；
Organic solvent occupies airborne weight percentage 50~98%, and organic solvent is selected from butyl carbitol, butyl carbitol acetic acid
Ester, terpinol, DBE, butyl glycol ether, ethylene glycol phenyl ether, propandiol butyl ether, alcohol ester, repefral, citric acid three
At least one in butyl ester.
According to another embodiment of the invention, further include, the auxiliary agent is included in dispersant or wetting agent extremely
Few one kind.
A kind of preparation method of crystal silicon solar energy battery high-tensile strength positive silver paste, preparation method is as follows：
Step 1)：Prepare organic carrier：The organic resin of mass fraction 2%~50% is weighed by formula rate, mass fraction is weighed
50%~98% organic solvent, high-speed stirred dissolves 1~3 hour at a temperature of 75~85 DEG C, obtains homogeneous organic carrier；
Step 2)：0.5~3 micron of average grain diameter, 4.5~6g/m of tap density are weighed by formula rate3Spherical quality of cathode silver
Percentage is 1~90%, the 5~15% of organic carrier percentage by weight, glass dust mass percent 1~8%, pulling force auxiliary agent 0.1~
3%, auxiliary agent mass percent 0~3% is well mixed in planetary stirring machine or other mixers, then disperses on three-roller
To less than 10 μm, you can be made crystal silicon solar energy battery high-tensile strength positive silver paste.
According to another embodiment of the invention, further include, the positive silver paste of the crystal silicon solar energy battery being made
Maximum fineness≤7 micron of material, average fineness≤5 micron；Solids content is 85~95%；Viscosity is 150~400kcps
；Sintering temperature is 760~850 DEG C.
The beneficial effects of the invention are as follows the present invention can improve the welding pulling force of front electrode, improve to a certain extent
The service life of cell piece.
Specific embodiment
With reference to embodiment, the present invention is described further.
Crystal silicon solar energy battery high-tensile strength positive silver paste, its component is as follows：
1~90% silver powder,
0.1~3% pulling force auxiliary agent,
5~15% organic carriers,
1~8% glass dust,
0~3% auxiliary agent.
Silver powder is conductive material, 1~3.5 micron of average grain diameter, 4.5~6g/m of tap density3Spherical silver powder.
Pulling force auxiliary agent described in pulling force auxiliary agent be from Zr, Cr, Co, Mo, Te, Ru, Rh, Pd, W, Re, Os, Ir, Pt, Li,
At least one metal or metal oxide or its metal compound particles selected in Ru, Zn, Sn, Sb.
Organic carrier is that at least one organic resin is constituted from the organic solvent of different evaporation rates；
Organic resin accounts for the 2%~50% of the mass percent of organic carrier, and organic resin is selected from rosin, ethyl cellulose, epoxy
At least one in resin, cellulose acetate, acrylic resin, polyvinyl resin, polyester, alkyd resin, polyamide；
Organic solvent occupies airborne weight percentage 50~98%, and organic solvent is selected from butyl carbitol, butyl carbitol acetic acid
Ester, terpinol, DBE, butyl glycol ether, ethylene glycol phenyl ether, propandiol butyl ether, alcohol ester, repefral, citric acid three
At least one in butyl ester.
Auxiliary agent includes at least one of dispersant or wetting agent.
Crystal silicon solar energy battery high-tensile strength positive silver paste and preparation method thereof is as follows：
Step 1)：Prepare organic carrier：The organic resin of mass fraction 2%~50% is weighed by formula rate, mass fraction is weighed
50%~98% organic solvent, high-speed stirred dissolves 1~3 hour at a temperature of 75~85 DEG C, obtains homogeneous organic carrier；
Step 2)：0.5~3 micron of average grain diameter, 4.5~6g/m of tap density are weighed by formula rate3Spherical quality of cathode silver
Percentage is 1~90%, the 5~15% of organic carrier percentage by weight, glass dust mass percent 1~8%, pulling force auxiliary agent 0.1~
3%, auxiliary agent mass percent 0~3% is well mixed in planetary stirring machine or other mixers, then disperses on three-roller
To less than 10 μm, you can be made crystal silicon solar energy battery positive silver paste.
Maximum fineness≤7 micron of the crystal silicon solar energy battery high-tensile strength positive silver paste being made, average fineness≤5 are micro-
Rice；Solids content is 85~95%；Viscosity is 150~400kcps；Sintering temperature is 760~850 DEG C.
Embodiment 1
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 75%, glass dust 3.2%, organic carrier 5%,
Sb2O3 0.5%th, Co 0.2%, BYK180 0.2%, remaining is solvent.Wherein the particle diameter of silver powder is 1~3.5 micron of particle diameter, jolt ramming
4.5~6g/m of density3Spherical silver powder；Glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5~3 micron.
Prepare organic carrier：Rosin 1%, cellulose acetate 2%, epoxy resin 5%, ethylene glycol phenyl ether 50%, butyl carbitol
Acetate 40%, dissolves 2 hours at a temperature of 80 DEG C, obtains homogeneous organic carrier；
Silver powder 75%, glass dust 3.2%, organic carrier 5%, Sb are weighed by above-mentioned formula rate2O3 0.5%、Co 0.2%、BYK180
0.2%, remaining is solvent.It is well mixed in planetary stirring machine or other mixers, then 10 μm is dispersed on three-roller
Below, you can be made crystal silicon solar energy battery positive silver paste.Crystal silicon solar energy battery positive silver paste is by 400 mesh mesh screen mistakes
Filter, you can obtain highly uniform solar cell front side silver paste.
The viscosity of the slurry is 220Pa.s（25℃）, pulling force, the polysilicon of test are welded with extraordinary front electrode
Piece number is 100, randomly selects two built-in testings welding pulling force, and welding pulling force is evaluated with 180 ° of tensile tests.With 400 DEG C of flatirons
Welding rod is welded on battery manually.Carrying out stripping with the speed of 0.5cm/s often carries out a 2cm numerical value of note, is then averaged
Value, the average welding pulling force of test is 2.5N.The cell piece for contrasting producing line averagely welds pulling force for 2.1N.
Embodiment 2
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 85%, glass dust 5%, organic carrier 8%,
SnO0.2%, W 0.2%, BYK110 0.3%, remaining is solvent.Wherein the particle diameter of silver powder is 1.5~3 microns of particle diameter, tap density
4.5~6g/m3Spherical silver powder；Glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5~3 micron.
Prepare organic carrier：Polyester 3%, alkyd resin 2%, cellulose acetate 10%, terpinol 20%, DBE10%, citric acid
Tributyl 40%, dissolves 2 hours at a temperature of 80 DEG C, obtains homogeneous organic carrier；
Silver powder 85%, glass dust 5%, organic carrier 8%, SnO0.2%, W 0.2%, BYK110 0.3% are weighed by formula rate, is expert at
It is well mixed in planetary mixer or other mixers, then less than 10 μm is dispersed on three-roller, you can is made crystalline silicon too
Positive energy battery positive silver paste.Slurry is by 400 mesh screen filtrations, you can obtain highly uniform solar cell front side silver paste.
The viscosity of the slurry is 260Pa.s（25℃）, pulling force, the polysilicon of test are welded with extraordinary front electrode
Piece number is 100, randomly selects two built-in testings welding pulling force, and welding pulling force is evaluated with 180 ° of tensile tests.With 400 DEG C of flatirons
Welding rod is welded on battery manually.Carrying out stripping with the speed of 0.5cm/s often carries out a 2cm numerical value of note, is then averaged
Value, the average welding pulling force of test is 2.8N.The cell piece for contrasting producing line averagely welds pulling force for 2.3N.
Embodiment 3
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 72%, glass dust 7.2%, organic carrier 8.6%,
ZnO 2%、Te 0.2%、Tego270 0.3%.Wherein the particle diameter of silver powder is 1.5~3 microns of particle diameter, 4.5~6g/m of tap density3
Spherical silver powder；Glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5~3 micron.
Prepare organic carrier：Acrylic resin 3%, polyvinyl resin 5%, polyvinyl resin 3%, propandiol butyl ether 50%, pine
Oleyl alcohol 40% dissolves 2 hours at a temperature of 80 DEG C, obtains homogeneous organic carrier；
Silver powder 72%, glass dust 7.2%, organic carrier 8.6%, ZnO 2%, Te 0.2%, Tego270 are weighed by formula rate
0.3%th, other are solvent, are well mixed in planetary stirring machine or other mixers, then 10 μm are dispersed on three-roller
Below, you can be made crystal silicon solar energy battery positive silver paste.Slurry is by 400 mesh screen filtrations, you can obtain highly uniform
Solar cell front side silver paste.
The viscosity of the slurry is 360Pa.s（25℃）, pulling force, the polysilicon of test are welded with extraordinary front electrode
Piece number is 100, randomly selects two built-in testings welding pulling force, and welding pulling force is evaluated with 180 ° of tensile tests.With 400 DEG C of flatirons
Welding rod is welded on battery manually.Carrying out stripping with the speed of 0.5cm/s often carries out a 2cm numerical value of note, is then averaged
Value, the average welding pulling force of test is 3.5N.The cell piece for contrasting producing line averagely welds pulling force for 2.6N.
To sum up, the present invention can improve the welding pulling force of main grid, and the service life of cell piece is improve to a certain extent.
It is described above to be merely exemplary for the purpose of the present invention, and it is nonrestrictive, and those of ordinary skill in the art understand,
In the case where the spirit and scope that appended claims are limited are not departed from, many modifications, change or equivalent can be made, but all
To fall within the scope of protection of the present invention.
Claims (7)
1. a kind of crystal silicon solar energy battery high-tensile strength positive silver paste, it is characterized in that, its component is as follows：
1~90% silver powder,
0.1~3% pulling force auxiliary agent,
5~15% organic carriers,
1~8% glass dust,
0~3% auxiliary agent.
2. crystal silicon solar energy battery high-tensile strength positive silver paste according to claim 1, it is characterized in that, the silver powder is to lead
Electric material, 1~3.5 micron of average grain diameter, 4.5~6g/m of tap density3Spherical silver powder.
3. crystal silicon solar energy battery high-tensile strength positive silver paste according to claim 1, it is characterized in that, the pulling force auxiliary agent
Described pulling force auxiliary agent is to be selected from Zr, Cr, Co, Mo, Te, Ru, Rh, Pd, W, Re, Os, Ir, Pt, Li, Ru, Zn, Sn, Sb
At least one metal or metal oxide or its metal compound particles.
4. crystal silicon solar energy battery high-tensile strength positive silver paste according to claim 1, it is characterized in that, the organic carrier
For at least one organic resin is constituted from the organic solvent of different evaporation rates；
Organic resin accounts for the 2%~50% of the mass percent of organic carrier, and organic resin is selected from rosin, ethyl cellulose, epoxy
At least one in resin, cellulose acetate, acrylic resin, polyvinyl resin, polyester, alkyd resin, polyamide；
Organic solvent occupies airborne weight percentage 50~98%, and organic solvent is selected from butyl carbitol, butyl carbitol acetic acid
Ester, terpinol, DBE, butyl glycol ether, ethylene glycol phenyl ether, propandiol butyl ether, alcohol ester, repefral, citric acid three
At least one in butyl ester.
5. crystal silicon solar energy battery high-tensile strength positive silver paste according to claim 1, it is characterized in that, the auxiliary agent includes
At least one of dispersant or wetting agent.
6. a kind of crystal silicon solar energy battery high-tensile strength positive silver paste and its preparation according to any one of Claims 1 to 5
Method, it is characterized in that, preparation method is as follows：
Step 1)：Prepare organic carrier：The organic resin of mass fraction 2%~50% is weighed by formula rate, mass fraction is weighed
50%~98% organic solvent, high-speed stirred dissolves 1~3 hour at a temperature of 75~85 DEG C, obtains homogeneous organic carrier；
Step 2)：0.5~3 micron of average grain diameter, 4.5~6g/m of tap density are weighed by formula rate3Spherical quality of cathode silver
Percentage is 1~90%, the 5~15% of organic carrier percentage by weight, glass dust mass percent 1~8%, pulling force auxiliary agent 0.1~
3%, auxiliary agent mass percent 0~3% is well mixed in planetary stirring machine or other mixers, then disperses on three-roller
To less than 10 μm, you can be made crystal silicon solar energy battery positive silver paste.
7. crystal silicon solar energy battery high-tensile strength positive silver paste according to claim 6 and preparation method thereof, it is characterized in that,
Maximum fineness≤7 micron, average fineness≤5 micron of the crystal silicon solar energy battery high-tensile strength positive silver paste being made；
Solids content is 85~95%；Viscosity is 150~400kcps；Sintering temperature is 760~850 DEG C.
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| CN107240436A (en) * | 2017-06-30 | 2017-10-10 | 北京市合众创能光电技术有限公司 | A kind of PERC crystal silicon solar energy batteries positive silver paste and preparation method thereof |
| CN107316674A (en) * | 2017-06-30 | 2017-11-03 | 北京市合众创能光电技术有限公司 | A kind of crystal silicon solar energy battery positive silver paste and preparation method thereof |
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| CN107316674A (en) * | 2017-06-30 | 2017-11-03 | 北京市合众创能光电技术有限公司 | A kind of crystal silicon solar energy battery positive silver paste and preparation method thereof |
| CN111587461B (en) * | 2017-11-06 | 2022-06-14 | LS-Nikko铜制炼株式会社 | Conductive paste for solar cell electrode and solar cell manufactured using same |
| CN111587461A (en) * | 2017-11-06 | 2020-08-25 | LS-Nikko铜制炼株式会社 | Conductive paste for solar cell electrode and solar cell manufactured using same |
| 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 |
| CN108511106A (en) * | 2018-02-28 | 2018-09-07 | 江苏国瓷泓源光电科技有限公司 | Mix the high-tensile strength solar cell front side silver paste and preparation method thereof of tellurides |
| CN111354503A (en) * | 2018-12-24 | 2020-06-30 | 东泰高科装备科技有限公司 | Conductive silver paste for flexible thin-film solar cell module and preparation method thereof |
| CN110148638A (en) * | 2019-05-06 | 2019-08-20 | 上海神舟新能源发展有限公司 | A kind of printing process of the more main grid solar battery sheets of MBB |
| CN110619971A (en) * | 2019-09-09 | 2019-12-27 | 江苏正能电子科技有限公司 | Formula and preparation method of high-tension front silver paste suitable for high-tellurium glass |
| CN111511099A (en) * | 2020-03-25 | 2020-08-07 | 上海玖银电子科技有限公司 | Quick-drying silver paste for large keyboard conductive film circuit and preparation method thereof |
| CN111511099B (en) * | 2020-03-25 | 2021-06-08 | 上海玖银电子科技有限公司 | Quick-drying silver paste for large keyboard conductive film circuit and preparation method thereof |
| CN116543947A (en) * | 2023-06-26 | 2023-08-04 | 浙江晶科新材料有限公司 | Additive of silver-aluminum paste of N-type solar cell, preparation method of additive and silver-aluminum paste |
| CN116543947B (en) * | 2023-06-26 | 2023-10-31 | 浙江晶科新材料有限公司 | Additive of silver-aluminum paste of N-type solar cell, preparation method of additive and silver-aluminum paste |
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