CN106448801A - Front silver paste of crystalline silicon solar cell and preparation method thereof - Google Patents
Front silver paste of crystalline silicon solar cell and preparation method thereof Download PDFInfo
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- CN106448801A CN106448801A CN201611191343.6A CN201611191343A CN106448801A CN 106448801 A CN106448801 A CN 106448801A CN 201611191343 A CN201611191343 A CN 201611191343A CN 106448801 A CN106448801 A CN 106448801A
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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 46
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 35
- 239000004332 silver Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 title abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 238000007639 printing Methods 0.000 claims abstract description 8
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 7
- 239000004698 Polyethylene Substances 0.000 claims abstract description 6
- 239000001856 Ethyl cellulose Substances 0.000 claims abstract description 5
- 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 abstract description 5
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 5
- 229920001249 ethyl cellulose Polymers 0.000 claims abstract description 5
- 235000019325 ethyl cellulose Nutrition 0.000 claims abstract description 5
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 4
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 3
- 229920002223 polystyrene Polymers 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 239000010703 silicon Substances 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 4
- 150000008065 acid anhydrides Chemical class 0.000 claims description 4
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 4
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 3
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 3
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 235000010981 methylcellulose Nutrition 0.000 claims description 3
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 claims description 2
- IDQBJILTOGBZCR-UHFFFAOYSA-N 1-butoxypropan-1-ol Chemical compound CCCCOC(O)CC IDQBJILTOGBZCR-UHFFFAOYSA-N 0.000 claims description 2
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 claims description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- WHFKYDMBUMLWDA-UHFFFAOYSA-N 2-phenoxyethyl acetate Chemical compound CC(=O)OCCOC1=CC=CC=C1 WHFKYDMBUMLWDA-UHFFFAOYSA-N 0.000 claims description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 2
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 claims description 2
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 2
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 claims description 2
- 229960001826 dimethylphthalate Drugs 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 150000002085 enols Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229940116411 terpineol Drugs 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 239000004593 Epoxy Substances 0.000 claims 1
- 239000000088 plastic resin Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 238000007650 screen-printing Methods 0.000 abstract description 2
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 2
- 239000004417 polycarbonate Substances 0.000 abstract 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract 2
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract 1
- 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 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000012776 electronic material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 abstract 1
- 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 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 230000005611 electricity Effects 0.000 description 5
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910003069 TeO2 Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009288 screen filtration Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation 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
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 238000010792 warming Methods 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
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)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to the technical field of solar electronic materials, in particular to a front silver paste of a crystalline silicon solar cell. The front silver paste is characterized by prepared from the following raw materials in percentage by weight: 0.1 to 6% of thermoplastic resin, 70 to 90% of silver powder, 0.5 to 10% of glass powder, 5 to 15% of organic carrier, and the balance of organic solvent, wherein organic resin in the organic carrier is one or multiple of rosin, ethyl cellulose, acrylic resin, cellulose acetate and epoxy resin; the thermoplastic resin is one or multiple of PE (polyethylene), PVC (polyvinyl chloride), PS (polystyrene), PA (polyamide), POM (polyoxymethylene), PC (polycarbonate), PVB (polyvinyl butyral), polyphenyl ether, polysulfone and polyester. The front silver paste has the advantages that the ink discharging amount of printing is increased, and the height and width ratio of a fine grating is increased; the front silver paste is applied to manufacture of the crystalline silicon solar cell through a screen printing technology, and the crystalline silicon solar cell manufactured from the front silver paste has higher conversion efficiency.
Description
Technical field
The present invention relates to solar energy electronic field of material technology, especially a kind of crystal silicon solar energy battery positive silver paste.
Background technology
Global warming, human ecological environment deteriorate, conventional energy resource shortage and cause environmental pollution situation under, profit
New generation of green energy mode-the solar electrical energy generation obtaining the energy with photovoltaic effect principle will become following most important
One of energy-conserving and environment-protective energy.Along with national governments, regenerative resource is substituted with the appealing of fossil energy, nowadays will have multiple
Country has formulated Renewable Energy Development target.Thailand plans to reach 25% to regenerative resource proportion in 2021.India plans to arrive
The year two thousand twenty realizes 20 gigawatt solar electrical energy generation scales.In some countries of East Africa and Southern Africa, planning can be again to the year two thousand thirty
The proportion of the raw energy brings up to 40%.China's photovoltaic installation scale occupies the whole world first, the product of photovoltaic module for continuous 3 years
Increase substantially.Data display, polysilicon yield, more than 16.5 ten thousand tons, increases by 25% on a year-on-year basis within 2015, doubles than 2013.
Going from strength to strength of market also tends to fieriness it is meant that competing.Monocrystalline and polycrystalline battery industry efficiency on market
Respectively reach 19.5% and 18.3%.In order to improve the occupation rate in market, Ge Jia Battery Plant it is also proposed a lot of raising cell piece light
The scheme of photoelectric transformation efficiency.The slurry of this patent is exactly to improve printing following ink, improves the depth-width ratio of thin grid, and then improves battery
The raising solar cell photoelectric conversion efficiency of piece.
Content of the invention
In order to overcome the shortcomings of that existing battery positive silver paste do not reach requirement, the invention provides a kind of crystalline silicon sun
Can battery positive silver paste.
The technical solution adopted for the present invention to solve the technical problems is：A kind of crystal silicon solar energy battery positive silver paste,
It is characterized in that its composition is made up of the raw material of following weight percents：
Thermoplastic resin 0.1～6%
Argentum powder 70～90%；
Glass dust 1～10%；
Organic carrier 5～15%；
Auxiliary agent 0～3%；
Balance of solvent.
According to another embodiment of the invention, further include to add thermoplastic resin in slurry, improve slurry print
Brush following ink, thus improve thin grid depth-width ratio.
According to another embodiment of the invention, further include thermoplastic resin be PE- polyethylene, PVC- polychlorostyrene second
Alkene, PS- polystyrene, PA- polyamide, POM- polyformaldehyde, PC- Merlon, PVB- polyvinyl butyral resin, polyphenylene oxide, poly-
One or more of sulfone, polyester.
According to another embodiment of the invention, further include that described organic carrier is one or more organic resins
Organic solvent composition from different evaporation rates.
According to another embodiment of the invention, further include that organic resin accounts for the mass percent of organic carrier
10%～40%, organic resin is selected from Colophonium, ethyl cellulose, acrylic resin, cellulose acetate, epoxy resin, Methyl cellulose
One or more of element, carboxymethyl cellulose and hydroxyethyl cellulose.
According to another embodiment of the invention, further include organic solvent occupy airborne weight percentage ratio 40～
90%, organic solvent is selected from butyl carbitol, butyl carbitol acetate, terpineol, butyl glycol ether, alcohol ester 12, ethylene glycol
Phenylate, ethylene glycol phenyl ether acetate, propandiol butyl ether, dimethyl phthalate, tributyl citrate, DBE, butyl molten acid anhydride second
One or more of acid esters.
According to another embodiment of the invention, further include that auxiliary agent includes dispersant or wetting agent is at least one.
According to another embodiment of the invention, further include to prepare the crystal silicon solar electricity described in claim 1
The method of pond positive silver paste comprises the following steps：
Step 1)：Prepare organic carrier：Weigh mass fraction 10%～400% organic resin by formula proportion, weigh mass fraction
50%～90% organic solvent, disperses at a high speed at a temperature of 75～85 DEG C 1～3 hour, obtains homogeneous organic carrier；
Step 2)：By formula proportion weigh quality of cathode silver percentage ratio be 75～90%, organic carrier percentage by weight 5～15%,
Glass dust mass percent 1-8%, auxiliary agent percent mass 1～3%, other is solvent, in planetary stirring machine or other blender
In mix homogeneously, then be dispersed to less than 10 μm on three-roller, you can make crystal silicon solar energy battery positive silver paste.
According to another embodiment of the invention, further include described in the crystal silicon solar energy battery positive silver paste made
Maximum fineness≤7 μm, average fineness≤5 μm；Solids content is 70～95%；Viscosity is 150～400kcps；Sintering temperature
For 760～850 DEG C.
The invention has the beneficial effects as follows, this positive silver paste can improve printing following ink, improves the printing depth-width ratio of slurry.
This positive silver paste is used for silk-screen printing technique and makes crystal silicon solar energy battery, the silicon solar electricity being made using this positive silver paste
There is higher conversion efficiency in pond.
Specific embodiment
Embodiment 1
The composition of the positive conductive silver slurry of the present embodiment and its percentage by weight：Argentum powder 72%, glass dust 6%, organic carrier 9%,
BYK110 is 0.5%, polyester 1.5%, and remaining is solvent, and glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5～3 μm.
Prepare organic carrier：Colophonium 9%, ethyl cellulose 3%, acrylic acid 5%, methylcellulose 2%, butyl carbitol 30%,
Tributyl citrate 40%, DBE15%, dissolve 2 hours at a temperature of 80 DEG C, obtain homogeneous organic carrier；
Weigh 72%, glass dust 6%, organic carrier 9%, BYK1100.5%, polyester 1.5% by above-mentioned formula proportion, remaining is solvent,
Mix homogeneously in planetary stirring machine or other blender, then it is dispersed to less than 10 μm on three-roller, you can make crystal
Silicon solar cell positive silver paste, through 400 mesh screen filtration, you can obtain highly uniform solar cell front side silver paste.
The viscosity of this slurry is 185Pa.s（25℃）, the polysilicon chip number of test is 100, randomly draws two built-in testings
Grid line pattern, every 3 points of built-in testing, thin grid depth-width ratio 0.65 after printing, thin grid depth-width ratio 0.48, electricity conversion after sintering
18.3% about, EL disconnected grid test is up to standard, the thin grid depth-width ratio 0.62 of contrast producing line slurry, thin grid depth-width ratio 0.45, light after sintering
Electric transformation efficiency 18.1% about.
Embodiment 2
The composition of the positive conductive silver slurry of the present embodiment and its percentage by weight：Argentum powder 82%, glass dust 3%, organic carrier 12%,
Tego240 is 1%, polyamide 2%, polyphenylene oxide 3%, and remaining is solvent, and glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5
～3 μm.
Prepare organic carrier：Cellulose acetate 3%, epoxy resin 3%, acrylic acid 5%, carboxymethyl cellulose 3%, butyl card must
Alcohol acetate 20%, ethylene glycol phenyl ether 25%, butyl molten acid anhydride acetass 15%, alcohol ester ten two 20%, at a temperature of 80 DEG C, dissolving 2 is little
When, obtain homogeneous organic carrier；
Weigh argentum powder 82%, glass dust 3%, organic carrier 12%, Tego2401%, polyamide 2%, polyphenylene oxide by above-mentioned formula proportion
3% remaining be solvent, mix homogeneously in planetary stirring machine or other blender, then be dispersed to less than 10 μm on three-roller,
Can be made into crystal silicon solar energy battery positive silver paste, through 400 mesh screen filtration, you can obtain highly uniform solar-electricity
Pond front side silver paste.
The viscosity of this slurry is 237Pa.s（25℃）, the polysilicon chip number of test is 100, randomly draws two built-in testings
Grid line pattern, every 3 points of built-in testing, thin grid depth-width ratio 0.64 after printing, thin grid depth-width ratio 0.47, electricity conversion after sintering
18.2% about, EL disconnected grid test is up to standard, the thin grid depth-width ratio 0.62 of contrast producing line slurry, thin grid depth-width ratio 0.45, light after sintering
Electric transformation efficiency 18.1% about.
Embodiment 3
The composition of the positive conductive silver slurry of the present embodiment and its percentage by weight：Argentum powder 90%, glass dust 2.5%, organic carrier 6%,
Tego270 is 0.3%, polyethylene 3%, polyvinyl butyral resin 1%, polyamide 2%, and remaining is solvent, and glass dust is PbO-TeO2
P series glass powder, particle diameter is 0.5～3 μm.
Prepare organic carrier：Cellulose acetate 3%, Colophonium 3%, ethyl cellulose 2%, hydroxyethyl cellulose butyl 5%, card must
Alcohol acetate 20%, ethylene glycol phenyl ether 25%, butyl molten acid anhydride acetass 15%, alcohol ester ten two 20%, at a temperature of 80 DEG C, dissolving 2 is little
When, obtain homogeneous organic carrier；
By above-mentioned formula proportion weigh argentum powder 90%, glass dust 2%, organic carrier 6%, Tego270 be 0.3%, polyethylene 3%, poly- second
Enol butyral 1%, polyamide 2%, remaining is solvent, mix homogeneously in planetary stirring machine or other blender, then three
It is dispersed to less than 10 μm, you can make crystal silicon solar energy battery positive silver paste, through 400 mesh screen filtration on roller machine, you can
Obtain highly uniform solar cell front side silver paste.
The viscosity of this slurry is 290Pa.s（25℃）, the polysilicon chip number of test is 100, randomly draws two built-in testings
Grid line pattern, every 3 points of built-in testing, thin grid depth-width ratio 0.67 after printing, thin grid depth-width ratio 0.49, electricity conversion after sintering
18.4% about, EL disconnected grid test is up to standard, the thin grid depth-width ratio 0.62 of contrast producing line slurry, thin grid depth-width ratio 0.45, light after sintering
Electric transformation efficiency 18.1% about.
Described above be merely exemplary for the purpose of the present invention, and nonrestrictive, those of ordinary skill in the art understand,
In the case of the spirit and scope being limited without departing from claims, many modifications, change or equivalent can be made, but all
To fall within the scope of protection of the present invention.
Claims (9)
1. a kind of crystal silicon solar energy battery positive silver paste it is characterised in that its composition by following weight percents raw material group
Become：
Thermoplastic resin 0.1～6%
Argentum powder 70～90%；
Glass dust 1～10%；
Organic carrier 5～15%；
Auxiliary agent 0～3%；
Balance of solvent.
2. crystal silicon solar energy battery positive silver paste according to claim 1, is characterized in that, adds heat in described slurry
Plastic resin, improves slurry printing following ink, thus improve thin grid depth-width ratio.
3. crystal silicon solar energy battery positive silver paste according to claim 1, is characterized in that, described thermoplastic resin is
PE- polyethylene, PVC- polrvinyl chloride, PS- polystyrene, PA- polyamide, POM- polyformaldehyde, PC- Merlon, the poly- second of PVB-
One or more of enol butyral, polyphenylene oxide, polysulfones, polyester.
4. crystal silicon solar energy battery positive silver paste according to claim 1, is characterized in that, it is characterized in that, described has
Airborne body is that one or more organic resins are formed from the organic solvent of different evaporation rates.
5. crystal silicon solar energy battery positive silver paste according to claim 1, is characterized in that, organic resin accounts for organic carrier
Mass percent 10%～40%, organic resin be selected from Colophonium, ethyl cellulose, acrylic resin, cellulose acetate, epoxy
One or more of resin, methylcellulose, carboxymethyl cellulose and hydroxyethyl cellulose.
6. crystal silicon solar energy battery positive silver paste according to claim 4, is characterized in that, organic solvent accounts for organic carrier
Mass percent 40～90%, organic solvent be selected from butyl carbitol, butyl carbitol acetate, terpineol, butyl glycol ether,
Alcohol ester 12, ethylene glycol phenyl ether, ethylene glycol phenyl ether acetate, propandiol butyl ether, dimethyl phthalate, citric acid three fourth
One or more of ester, DBE, butyl molten acid anhydride acetass.
7. crystal silicon solar energy battery positive silver paste according to claim 1, is characterized in that, described auxiliary agent includes dispersant
Or wetting agent is at least one.
8. a kind of crystal silicon solar energy battery described in any one according to claim 1～6 no net is knotted edition positive silver paste
Preparation method, is characterized in that, preparation method is as follows：
Step 1)：Prepare organic carrier：Weigh mass fraction 10%～400% organic resin by formula proportion, weigh mass fraction
50%～90% organic solvent, disperses at a high speed at a temperature of 75～85 DEG C 1～3 hour, obtains homogeneous organic carrier；
Step 2)：By formula proportion weigh quality of cathode silver percentage ratio be 75～90%, organic carrier percentage by weight 5～15%,
Glass dust mass percent 1-8%, auxiliary agent percent mass 1～3%, other is solvent, in planetary stirring machine or other blender
In mix homogeneously, then be dispersed to less than 10 μm on three-roller, you can make crystal silicon solar energy battery positive silver paste.
9. preparation method according to claim 7, is characterized in that, the described crystal silicon solar energy battery positive silver paste made
Maximum fineness≤7 μm, average fineness≤5 μm；Solids content is 70～95%；Viscosity is 150～400kcps；Sintering temperature
For 760～850 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191343.6A CN106448801A (en) | 2016-12-21 | 2016-12-21 | Front silver paste of crystalline silicon solar cell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191343.6A CN106448801A (en) | 2016-12-21 | 2016-12-21 | Front silver paste of crystalline silicon solar cell and preparation method thereof |
Publications (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106876003A (en) * | 2017-03-09 | 2017-06-20 | 江苏欧耐尔新型材料股份有限公司 | Match solar battery front side conductive silver paste and preparation method without net netting version |
| CN109354701A (en) * | 2018-09-06 | 2019-02-19 | 四川顶立胶业有限公司 | A kind of preparation method of environment-friendly type rosin solution |
| CN109735170A (en) * | 2019-01-11 | 2019-05-10 | 上海银浆科技有限公司 | A kind of dedicated organic carrier of flash baking type secondary printing front side silver paste |
| CN112967833A (en) * | 2021-02-04 | 2021-06-15 | 上海日御新材料科技有限公司 | Organic carrier for solar cell electrode slurry and preparation method thereof |
| CN113488223A (en) * | 2021-07-09 | 2021-10-08 | 苏州晶银新材料科技有限公司 | Solar cell conductive silver paste without silicone oil and application thereof |
| CN113871052A (en) * | 2021-07-05 | 2021-12-31 | 上海银浆科技有限公司 | A conductive paste for solar cells |
| CN115215745A (en) * | 2022-09-07 | 2022-10-21 | 成都中金黎阳新材料科技有限公司 | Synthesis of diethylene glycol phenyl ether acetate and application of diethylene glycol phenyl ether acetate in high-temperature and low-temperature slurry |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876003A (en) * | 2017-03-09 | 2017-06-20 | 江苏欧耐尔新型材料股份有限公司 | Match solar battery front side conductive silver paste and preparation method without net netting version |
| CN109354701A (en) * | 2018-09-06 | 2019-02-19 | 四川顶立胶业有限公司 | A kind of preparation method of environment-friendly type rosin solution |
| CN109735170A (en) * | 2019-01-11 | 2019-05-10 | 上海银浆科技有限公司 | A kind of dedicated organic carrier of flash baking type secondary printing front side silver paste |
| CN112967833A (en) * | 2021-02-04 | 2021-06-15 | 上海日御新材料科技有限公司 | Organic carrier for solar cell electrode slurry and preparation method thereof |
| CN113871052A (en) * | 2021-07-05 | 2021-12-31 | 上海银浆科技有限公司 | A conductive paste for solar cells |
| CN113488223A (en) * | 2021-07-09 | 2021-10-08 | 苏州晶银新材料科技有限公司 | Solar cell conductive silver paste without silicone oil and application thereof |
| CN115215745A (en) * | 2022-09-07 | 2022-10-21 | 成都中金黎阳新材料科技有限公司 | Synthesis of diethylene glycol phenyl ether acetate and application of diethylene glycol phenyl ether acetate in high-temperature and low-temperature slurry |
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