CN107240436A - A kind of PERC crystal silicon solar energy batteries positive silver paste and preparation method thereof - Google Patents
A kind of PERC crystal silicon solar energy batteries positive silver paste and preparation method thereof Download PDFInfo
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- CN107240436A CN107240436A CN201710522050.XA CN201710522050A CN107240436A CN 107240436 A CN107240436 A CN 107240436A CN 201710522050 A CN201710522050 A CN 201710522050A CN 107240436 A CN107240436 A CN 107240436A
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 31
- 239000004332 silver Substances 0.000 title claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 23
- 239000010703 silicon Substances 0.000 title claims abstract description 23
- 239000013078 crystal Substances 0.000 title claims abstract description 22
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 title claims abstract description 20
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 title claims abstract description 20
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title description 4
- 239000011521 glass Substances 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229910052693 Europium Inorganic materials 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
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 4
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 3
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 3
- 239000000969 carrier Substances 0.000 claims abstract description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 3
- 150000002739 metals Chemical class 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 7
- 235000014366 other mixer Nutrition 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
- 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
- -1 alcohol ester Chemical class 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 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
- 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 3
- 229920002301 cellulose acetate Polymers 0.000 claims description 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 3
- 229920001249 ethyl cellulose Polymers 0.000 claims description 3
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 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 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-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
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- 239000002270 dispersing agent Substances 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
- 239000000080 wetting agent Substances 0.000 claims description 2
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000012776 electronic material Substances 0.000 abstract description 2
- 238000009766 low-temperature sintering Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 9
- 230000005611 electricity Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910003069 TeO2 Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009288 screen filtration Methods 0.000 description 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910000421 cerium(III) oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- RBNWAMSGVWEHFP-UHFFFAOYSA-N trans-p-Menthane-1,8-diol Chemical compound CC(C)(O)C1CCC(C)(O)CC1 RBNWAMSGVWEHFP-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
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Conductive Materials (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to technical field of electronic materials, especially a kind of PERC crystal silicon solar energy batteries 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%, fluxing agent 0.01~0.2%, each component content sum is 100%.The fluxing agent is the one or more of metals or its metal oxide or its metal resinate selected from La, Ce, Nd, Eu, Gd, Tm, Er.Metal or metal oxide or its metal resinate are with the addition of in slurry of the present invention, temperature required during sintering is reduced, it is adaptable to low-temperature sintering, PERC techniques can be met and used.
Description
Technical field
The present invention relates to technical field of electronic materials, especially a kind of PERC crystal silicon solar energy batteries positive silver paste and its
Preparation method.
Background technology
Currently, as the development energy consumption of society is increasing, traditional fossil energy worsening shortages, its danger caused to environment
Evil is also outstanding day by day, and this allows for solar energy and received much concern as one kind cleaning, safety and regenerative resource two.Solar cell
It is a kind of universal situation of our times development and utilization solar energy, and conductive silver paste is the main former material for preparing solar cell
Material.
Passivation emitter and back of the body local contact battery（PERC）Researched and developed earliest by University of New South Wales, due to electricity
Pond has carried out passivation on double surfaces, and backplate uses the form that local is contacted, significantly reduces surface recombination, reduce battery
Buckling failure.In addition, having carried out polishing to cell backside, the absorption to long wave is improved.The sintering of PERC cell sizes
Temperature is 850~880 DEG C, less than the sintering temperature of conventional batteries silver paste.At the sintering temperature, there is contact electricity in conventional back of the body silver
Resistive is big, and causes electricity conversion to reduce.Led the invention provides a kind of front of PERC local backs passivation cell technology
Electric silver paste.
Therefore, develop and solve the solar battery front side conductive silver paste that slurry fires the relevant issues produced, for shape
Into China's solar cell with silver powder and electrocondution slurry independent intellectual property right is applied mechanically, promote the technology of China's solar cell industry
Innovation, the huge needs for meeting future market are of great importance.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of PERC crystal silicon solar energy batteries positive silver paste.
The technical solution adopted for the present invention to solve the technical problems is：A kind of positive silver paste of PERC crystal silicon solar energy batteries
Material, the slurry is made up of the component of following mass percent：
1~90% silver powder,
0.01~0.2% fluxing agent,
5~15% organic carriers,
1~8% glass dust；
0~3% auxiliary agent.
According to another embodiment of the invention, it is spherical conductive material to further comprise silver powder, and average grain diameter is 0.5
~3 microns, tap density be 4.5~6g/m3。
According to another embodiment of the invention, further comprise organic carrier be one or more of organic resins from it is different
The organic solvent composition of evaporation rate, wherein organic resin accounts for the 2%~50% of the mass percent of organic carrier, and organic solvent is accounted for
Organic carrier mass percent 50~98%.
According to another embodiment of the invention, further comprise that organic resin is selected from rosin, ethyl cellulose, acetic acid fine
Tie up the one or more in element, acrylic resin, vinyl chloride-vinyl acetate resin, polyester, alkyd resin, polyamide.
According to another embodiment of the invention, further comprise that organic solvent is selected from butyl carbitol, butyl carbitol
Acetate, butyl glycol ether, ethylene glycol phenyl ether, propandiol butyl ether, alcohol ester 12, repefral, the fourth of citric acid three
One or more in ester.
According to another embodiment of the invention, it is for from La, Ce, Nd, Eu, Gd, Tm, Er to further comprise fluxing agent
The one or more of metals or its metal oxide of selection or its metal resinate.
According to another embodiment of the invention, further comprise that auxiliary agent includes dispersant or one kind in wetting agent or two
Kind.
According to another embodiment of the invention, further comprise 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)：Silver powder is weighed for conductive material by formula rate, 0.5~3 micron of average grain diameter, 4.5~6g/ of tap density
M3 spherical silver powder, spherical quality of cathode silver percentage is 1~90%, the 5~15% of organic carrier percentage by weight, glass dust quality
Percentage 1~8%, fluxing agent 0.01~0.2%, auxiliary agent mass percent 0~3%, in planetary stirring machine or other mixers
It is well mixed, then it is dispersed on three-roller less than 10 μm, you can crystal silicon solar energy battery positive silver paste is made.
According to another embodiment of the invention, the crystal silicon solar energy battery positive silver paste being made is further comprised most
Big fineness≤7 micron, 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 relevant issues produced are fired present invention mainly solves PERC techniques low-temperature sintering,
The sintering temperature of slurry is reduced by adding fluxing agent in the slurry.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is each embodiment and conventional printing producing line solar cell properties comparison diagram.
Embodiment
Embodiment 1
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 85%, glass dust 3%, organic carrier 8%,
Ce2O3 0.02%、La2O30.05%th, BYK180 0.2%, remaining is solvent.Wherein the particle diameter of silver powder be 1~3.5 micron of particle diameter,
4~6g/m of tap 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%, polyester 5%, repefral 30%, butyl card must
Alcohol acetate 30%, alcohol ester ten two 30%, dissolves 2 hours at a temperature of 80 DEG C, obtains homogeneous organic carrier；
Silver powder 85%, glass dust 3%, organic carrier 8%, Ce are weighed by above-mentioned formula rate2O3 0.02%、La2O3 0.05%、
BYK180 0.2%, is well mixed in planetary stirring machine or other mixers, then is dispersed on three-roller less than 10 μm,
It can be made into crystal silicon solar energy battery positive silver paste.Crystal silicon solar energy battery positive silver paste passes through 400 mesh screen filtrations, i.e.,
It can obtain highly uniform solar cell front side silver paste.
The viscosity of the slurry is 250Pa.s（25℃）, the monocrystalline silicon piece number of test is 100, the monocrystalline silicon piece number of test
For 100, electricity conversion 19.73% or so.
Embodiment 2
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 75%, glass dust 5%, organic carrier 10%,
Nd2O3 0.02%th, Eu 0.02%, remaining is solvent.Wherein the particle diameter of silver powder be 1.5~3.5 microns of particle diameter, tap density 4~
6g/m3Spherical silver powder；Glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5~3 micron.
Prepare organic carrier：Ethyl cellulose 3%, polyamide 2%, cellulose acetate 10%, terpinol 20%, propandiol butyl ether
20%th, alcohol ester ten two 30%, dissolves 2 hours at a temperature of 80 DEG C, obtains homogeneous organic carrier；
Silver powder 75%, glass dust 5%, organic carrier 10%, Nd are weighed by formula rate2O3 0.02%th, Eu 0.02%, remaining is molten
Agent, is well mixed in planetary stirring machine or other mixers, then is dispersed on three-roller less than 10 μm, you can be made
Crystal silicon solar energy battery positive silver paste.Slurry passes through 400 mesh screen filtrations, you can obtaining highly uniform solar cell just
Face silver paste.
The viscosity of the slurry is 220Pa.s（25℃）, the monocrystalline silicon piece number of test is 100, electricity conversion
19.61% or so.
Embodiment 3
The composition and its percentage by weight of the positive conductive silver slurry of the present embodiment：Silver powder 80%, glass dust 3%, organic carrier 5.5%,
Gd2SO3 0.02%、Er2CO30.02%, remaining is solvent.Wherein the particle diameter of silver powder is 1.5~3.5 microns of particle diameter, tap density
4~6g/m3Spherical silver powder；Glass dust is PbO-TeO2P series glass powder, particle diameter is 0.5~3 micron.
Prepare organic carrier：Acrylic resin 3%, vinyl chloride-vinyl acetate resin 8%, propandiol butyl ether 50%, butyl glycol ether 40% are 80
Dissolved 2 hours at a temperature of DEG C, obtain homogeneous organic carrier；
Silver powder 80%, glass dust 3%, organic carrier 5.5%, Gd are weighed by formula rate2SO3 0.02%、Er2CO30.02%, remaining
For solvent.It is well mixed in planetary stirring machine or other mixers, then is dispersed on three-roller less than 10 μm, you can
Crystal silicon solar energy battery positive silver paste is made.Slurry passes through 400 mesh screen filtrations, you can obtain highly uniform solar-electricity
Pond front side silver paste.
The viscosity of the slurry is 320Pa.s（25℃）, pulling force, the monocrystalline silicon of test are welded with extraordinary front electrode
Piece number is 100, electricity conversion 19.58% or so
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, not
In the case of departing from the spirit and scope that appended claims are limited, many modifications, change or equivalent can be made, but will all fall
Enter in protection scope of the present invention.
Claims (9)
1. a kind of PERC crystal silicon solar energy batteries positive silver paste, it is characterized in that, the slurry by following mass percent component
Composition：
1~90% silver powder,
0.01~0.2% fluxing agent,
5~15% organic carriers,
1~8% glass dust；
0~3% auxiliary agent.
2. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 1, it is characterized in that, the silver powder is
Spherical conductive material, average grain diameter is 0.5~3 micron, tap density is 4.5~6g/m3。
3. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 1, it is characterized in that, it is described to have airborne
Body is that one or more of organic resins are constituted from the organic solvent of different evaporation rates, and wherein organic resin accounts for the matter of organic carrier
The 2%~50% of percentage is measured, organic solvent occupies airborne weight percentage 50~98%.
4. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 3, it is characterized in that, organic tree
Fat is in rosin, ethyl cellulose, cellulose acetate, acrylic resin, vinyl chloride-vinyl acetate resin, polyester, alkyd resin, polyamide
It is one or more of.
5. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 3, it is characterized in that, it is described organic molten
Agent be selected from butyl carbitol, butyl carbitol acetate, butyl glycol ether, ethylene glycol phenyl ether, propandiol butyl ether, alcohol ester 12,
One or more in repefral, ATBC.
6. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 1, it is characterized in that, the fluxing agent
For the one or more of metals or its metal oxide or its Metal tree resin acid to be selected from La, Ce, Nd, Eu, Gd, Tm, Er
Salt.
7. a kind of PERC crystal silicon solar energy batteries positive silver paste according to claim 1, it is characterized in that, the auxiliary agent bag
Include one or both of dispersant or wetting agent.
8. a kind of method of the PERC crystal silicon solar energy battery positive silver pastes prepared described in claim 1, it is characterized in that, prepare
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)：Silver powder is weighed for conductive material by formula rate, 0.5~3 micron of average grain diameter, 4.5~6g/ of tap density
M3 spherical silver powder, spherical quality of cathode silver percentage is 1~90%, the 5~15% of organic carrier percentage by weight, glass dust quality
Percentage 1~8%, fluxing agent 0.01~0.2%, auxiliary agent mass percent 0~3%, in planetary stirring machine or other mixers
It is well mixed, then it is dispersed on three-roller less than 10 μm, you can crystal silicon solar energy battery positive silver paste is made.
9. the method for PERC crystal silicon solar energy batteries positive silver paste according to claim 8, it is characterized in that, the crystalline substance being made
Maximum fineness≤7 micron, average fineness≤5 micron of body silicon solar cell positive silver paste；Solids content is 85~95%
；Viscosity is 150~400kcps；Sintering temperature is 760~850 DEG C.
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| CN201710522050.XA CN107240436A (en) | 2017-06-30 | 2017-06-30 | A kind of PERC crystal silicon solar energy batteries positive silver paste and preparation method thereof |
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| CN201710522050.XA CN107240436A (en) | 2017-06-30 | 2017-06-30 | A kind of PERC crystal silicon solar energy batteries positive silver paste and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110111923A (en) * | 2019-04-22 | 2019-08-09 | 苏州市贝特利高分子材料股份有限公司 | Solar battery with hachure high-aspect-ratio electrodes |
| CN110164586A (en) * | 2019-04-22 | 2019-08-23 | 苏州市贝特利高分子材料股份有限公司 | Organic system for hachure high aspect ratio screen printing sizing agent |
| CN110164584A (en) * | 2019-04-22 | 2019-08-23 | 苏州市贝特利高分子材料股份有限公司 | Hachure high aspect ratio screen printing sizing agent based on vinyl chloride-vinyl acetate resin organic carrier |
| CN110246604A (en) * | 2019-04-22 | 2019-09-17 | 苏州市贝特利高分子材料股份有限公司 | A kind of preparation method of hachure high aspect ratio screen printing sizing agent |
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| CN110246604A (en) * | 2019-04-22 | 2019-09-17 | 苏州市贝特利高分子材料股份有限公司 | A kind of preparation method of hachure high aspect ratio screen printing sizing agent |
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| CN110246604B (en) * | 2019-04-22 | 2024-06-28 | 苏州市贝特利高分子材料股份有限公司 | Preparation method of fine line high aspect ratio screen printing slurry |
| CN110890168A (en) * | 2019-11-04 | 2020-03-17 | 上海银浆科技有限公司 | Front silver paste for high-contact high-adhesion PERC single crystal solar cell and preparation method |
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