WO2019205223A1 - Conductive silver paste for front surface of crystalline silicon solar cell and preparation method therefor and solar cell - Google Patents
Conductive silver paste for front surface of crystalline silicon solar cell and preparation method therefor and solar cell Download PDFInfo
- Publication number
- WO2019205223A1 WO2019205223A1 PCT/CN2018/088855 CN2018088855W WO2019205223A1 WO 2019205223 A1 WO2019205223 A1 WO 2019205223A1 CN 2018088855 W CN2018088855 W CN 2018088855W WO 2019205223 A1 WO2019205223 A1 WO 2019205223A1
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- WO
- WIPO (PCT)
- Prior art keywords
- solar cell
- crystalline silicon
- silicone oil
- silicon solar
- parts
- Prior art date
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 229910021419 crystalline silicon Inorganic materials 0.000 title claims abstract description 162
- 238000002360 preparation method Methods 0.000 title abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 152
- 239000000843 powder Substances 0.000 claims abstract description 137
- 229920002545 silicone oil Polymers 0.000 claims abstract description 77
- -1 methyl hydrogen Chemical compound 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 239000002994 raw material Substances 0.000 claims abstract description 41
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 6
- 229920003216 poly(methylphenylsiloxane) Polymers 0.000 claims abstract description 5
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims abstract description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 53
- 229910052709 silver Inorganic materials 0.000 claims description 48
- 239000004332 silver Substances 0.000 claims description 48
- 239000002245 particle Substances 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 30
- 229910052797 bismuth Inorganic materials 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 238000007639 printing Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 18
- 229910052796 boron Inorganic materials 0.000 claims description 16
- 238000005245 sintering Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
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- 239000010949 copper Substances 0.000 claims description 10
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
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- 239000010936 titanium Substances 0.000 claims description 10
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- 239000011701 zinc Substances 0.000 claims description 10
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- 239000011651 chromium Substances 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
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- 239000011135 tin Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
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- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
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- 239000011591 potassium Substances 0.000 claims description 3
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- 239000011734 sodium Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
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- 229910052787 antimony Inorganic materials 0.000 claims 6
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- 238000005266 casting Methods 0.000 claims 1
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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
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to the field of solar cell technologies, and in particular, to a front-side conductive silver paste of a crystalline silicon solar cell, a preparation method thereof, and a solar cell. Background technique
- Solar energy is an inexhaustible clean energy source. With the depletion of non-renewable energy sources such as coal and oil, the development and use of solar energy has become a hot spot. Solar cells developed based on this idea are an important means of utilizing solar energy. At present, the realization of industrialized crystalline silicon solar cells has become a model for solar cell applications.
- a cell sheet is a core component of a crystalline silicon solar cell.
- a conductive paste is applied to the silicon wafer by screen printing, and a front electrode is formed on the front surface of the silicon wafer by sintering.
- the front electrode of the sintered crystalline silicon solar cell needs to be firmly adhered on the silicon wafer, the gate line is narrow and high, the light shielding area is small, and the welding is easy, and the conductive paste for the front electrode of the silicon solar cell needs to have the silicon nitride penetrated during the sintering process.
- a common crystalline silicon solar cell front conductive silver paste is composed of silver powder, glass powder, and an organic carrier, and the conductive silver paste is printed on the surface of the battery sheet by screen printing, and is sintered to form a front electrode.
- the screen printing performance of the front conductive silver paste is important for its overall performance, and the organic carrier is the main factor determining its screen printing performance.
- the front conductive silver paste can be printed on the finer screen sub-gate opening and the printed sub-gate has an excellent aspect ratio, and the ratio of the height and width of the gate line is larger, and the resistance is low.
- the efficiency of the battery sheet is high, and the finer the screen sub-gate opening, the thinner the width of the front conductive silver paste sub-gate printed on the surface of the battery sheet, the less the surface of the battery sheet is covered, and the area of the battery sheet for receiving solar light.
- the technical problem to be solved by the present invention is: providing a front-side conductive silver paste of a crystalline silicon solar cell and a preparation method thereof, so as to solve the problem that the existing front conductive silver paste cannot be printed on a thin line, thereby causing front conductive silver
- the slurry must be printed on the cell sheet on a relatively wide open screen, so that the width of the front electrode after sintering is wide, the area of the solar cell is covered, the effective utilization area of the solar cell is reduced, and the photoelectric conversion efficiency of the cell is low.
- the present invention also provides a method for fabricating a front electrode of a crystalline silicon solar cell and a solar battery.
- a crystalline silicon solar cell front conductive silver paste based on a total weight of 100 parts, comprising the following composition ratio components:
- organic carrier 6.0 ⁇ 15.0 parts
- the lauric oil is methyl laurel oil, ethyl laurel oil, phenyl laurel oil, methyl chloro oleic acid, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxylate At least one of silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, and cyanogen-containing silicone oil.
- a method for preparing a conductive silver paste on a front side of a crystalline silicon solar cell comprises at least the following steps: [0015] Step S01: melting a glass frit raw material component to obtain a glass frit melt, the molten metal The quenching treatment is carried out to obtain glass powder particles, and after crushing, a glass powder powder having a particle diameter of 0.1 to 5. (Vm;
- Step S02. The organic carrier raw material is placed in an environment of 40 to 100 ° C for mixing treatment to obtain an organic vehicle; [0017] Step S03. The metal powder and the glass powder powder obtained in Step S01, the organic obtained in Step S02 The carrier and the silicone oil are mixed to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
- a method for fabricating a front surface electrode of a crystalline silicon solar cell includes at least the following steps:
- the above-mentioned crystalline silicon solar cell front conductive silver paste is printed on the surface of the insulating film by printing, and then sequentially dried, sintered, and cooled to obtain a front surface electrode of the crystalline silicon solar cell.
- the present invention provides a silicon-silicate solar cell with a silicone oil in the front conductive silver paste, which improves the performance and flow performance of the front conductive silver paste, and the screen printing performance is greatly improved, and can be narrower.
- Printing on the open screen, the front side of the silver electrode is made narrower, obtaining a better aspect ratio, reducing the coverage area of the solar cell, increasing the effective area of the solar cell to receive sunlight, thereby improving the conversion efficiency of the solar cell. And use efficiency.
- the preparation method of the front surface conductive silver paste of the crystalline silicon solar cell provided by the invention has simple process conditions, and the obtained front conductive silver paste component has uniform composition and good performance, and is suitable for industrial mass production.
- FIG. 1 is a schematic view showing a process flow for preparing a conductive silver paste on a front side of a crystalline silicon solar cell according to the present invention
- FIG. 2 is a schematic view showing a process flow of a method for fabricating a front electrode of a crystalline silicon solar cell according to the present invention
- FIG. 3 is a view showing the present invention for printing a crystalline silicon semiconductor device having an insulating film on its surface. Schematic diagram of the front conductive silver paste;
- FIG. 4 is a schematic view of the crystalline silicon semiconductor device printed with the front and back front conductive silver pastes in FIG. 3 in accordance with the present invention. [0027] FIG.
- FIG. 5 is a schematic diagram of a 180 degree tensile test
- 6A is a front electrode topography of the first embodiment, the front electrode width is 29.6 pm, the screen screen opening 23 pm, and the front conductive silver paste of the embodiment 1 contains 3% of silicone oil;
- 6B is a front electrode topography prepared in Comparative Example 1, the front electrode width is 43.4—, the screen screen opening 2 3[im Comparative Example 1 of the front conductive silver paste does not contain laurel oil;
- both crystalline silicon and silicon crystals mean the same meaning.
- a front side conductive silver paste of a crystalline silicon solar cell in terms of 100 parts by weight, comprising the following raw material components:
- metal powder 80.0 ⁇ 93.0 parts; organic carrier 6.0 ⁇ 15.0 parts; glass powder 1.0 ⁇ 5.0 parts; silicone oil 0.06 ⁇ 3.75 parts
- the metal powder is silver, gold, platinum, copper, iron, nickel, zinc, titanium, cobalt, chromium, smear, manganese,
- At least one of I and ⁇ At least one of I and ⁇ .
- the metal powder is at least one of silver-coated copper, iron, nickel, zinc, titanium, cobalt, chromium, molybdenum, and manganese, wherein the thickness of the silver coating layer is 10 ⁇ 50nm
- the metal powder is a mixture of a non-silver coated metal powder and a silver coated metal powder, wherein a weight ratio of the non-silver coated metal powder to the silver coated metal powder
- the metal powder coated with 5/95 to 95/5 non-silver is at least one of silver, gold, platinum, copper, iron, nickel, zinc, titanium, cobalt, chromium, smear, manganese, ffi, samarium;
- the coated metal powder is at least one of copper, iron, nickel, zinc, titanium, cobalt, chromium, magnesium, and manganese, and the thickness of the silver coating layer is 10 to 50 nm.
- the organic vehicle in the present invention includes an organic solvent, a polymer, a wetting and dispersing agent, a thixotropic agent, and other functional additives.
- the weight of the organic vehicle is 100 parts, and the following components are included:
- organic solvent 50 ⁇ 95 parts; polymer 1 ⁇ 40 parts; wetting and dispersing agent 0.1 ⁇ 10 parts; thixotropic agent 1 ⁇ 20 parts; His functional additives are 0.1 ⁇ 20.
- the silicone oil is methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoropropyl
- a base silicone oil a methyl vinyl silicone oil, a methyl hydroxy silicone oil, an ethyl hydrogen silicone oil, a hydroxyl hydrogen silicone oil, and a cyanide-containing silicone oil.
- the organic solvent is selected from the group consisting of terpineol, tetracaine, ethylene glycol butyl ether acetate, ethylene glycol ethyl ether acetate, decadiol ester, diethylene glycol butyl ether, triethylene glycol butyl ether, At least one of a high boiling point solvent such as tripropylene glycol methyl ether or decene.
- the polymer is selected from at least one of ethyl cellulose, methyl cellulose, cellulose and derivatives thereof, acrylic resin, alkyd resin, and polyester resin.
- the wetting and dispersing agent is selected from the group consisting of fatty acids (oleic acid, stearic acid, etc.), amide derivatives of fatty acids (oleic acid amide, stearic acid amide, etc.), ester derivatives of fatty acids, polyethylene wax, poly At least one of ethylene glycol is mainly used to assist dispersion of the inorganic powder in the organic vehicle.
- the thixotropic agent is selected from the group consisting of hydrogenated castor oil derivatives, polyamide wax, polyurea, fumed silica, or two or more, mainly used to improve the contact of the front conductive silver paste in the printing process. Denaturation, when the silver paste is sheared during the printing process, the consistency becomes small, and it is easy to screen-print. When the shearing is stopped, the consistency is increased to ensure the electrode has an excellent aspect ratio.
- the other functional auxiliary is selected from the group consisting of polymethylphenylsiloxane, polyphenylsiloxane, phthalate (such as diethyl phthalate, dibutyl phthalate) And so on, at least one of microcrystalline wax, polydimethylsiloxane, polyvinyl butyral (PVB), polyether polyester-modified organosiloxane, and alkyl-modified organosiloxane.
- the other functional additives may be added according to requirements, such as adding microcrystalline wax to reduce surface tension, adding dibutyl phthalate (DBP), etc. to improve the flexibility of the front conductive silver paste, adding polyvinyl alcohol Butanal (PVB) and the like improve adhesion.
- the glass frit is one or a mixture of leaded glass powder and lead-free glass powder.
- the leaded glass powder is 100% by weight, and includes the following components:
- the added element in the oxide of the added element is titanium, smear, silver, chromium, bismuth, copper, bismuth, vanadium, sodium, ancestor, bismuth, bromine, cobalt, ruthenium, osmium, iridium, iron, Bismuth, manganese, tin, nickel, tin, arsenic, wrong, One or two or more of potassium, phosphorus, indium, gallium, germanium, silicon, boron, zinc, tungsten, magnesium, and the like.
- the lead-free glass powder is 100% by weight, and includes the following components:
- the added element in the oxide of the added element is titanium, smear, silver, chromium, bismuth, copper, bismuth, vanadium, sodium, ancestor, bismuth, bromine, cobalt, ruthenium, osmium, iridium, iron, One or two or more of ruthenium, manganese, tin, nickel, tin, arsenic, potassium, phosphorus, indium, gallium, germanium, silicon, boron, zinc, tungsten, magnesium, and the like.
- the present invention also provides a method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell.
- a method for preparing a conductive silver paste on a front side of a crystalline silicon solar cell includes at least the following steps:
- Step S01 The glass frit raw material component is melted to obtain a glass frit melt, and the molten liquid is quenched to obtain a glass frit particle, and is crushed to obtain a glass powder having a particle diameter of 0.1 to 5.
- Step S02. The organic carrier raw material is placed in an environment of 40 to 100 ° C for mixing treatment to obtain an organic carrier;
- Step S03. The metal powder is mixed with the glass powder powder obtained in step S01, the organic vehicle obtained in step S02, and the silicone oil to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
- the organic carrier can be prepared by the following method: the raw material of the organic carrier is weighed according to the weight ratio of the organic carrier raw materials, and the weighed organic carrier raw material is placed in the container at 40 ⁇ 100 ° C The mixture was stirred and mixed at a temperature of 100 to 160 minutes to obtain an organic vehicle.
- the glass frit is one or a mixture of lead-containing glass powder and lead-free glass powder.
- the glass frit is crystalline, amorphous or a mixture of amorphous and crystalline.
- the glass frit can be prepared by the following method:
- the glass frit raw material is weighed according to the raw material ratio as described above and uniformly mixed; the uniformly mixed glass frit raw material is placed in a heating furnace and heated to 900-1100 ° C, and is kept at 900-1100 ° C 60 ⁇ 180min, obtaining molten liquid glass powder; quenching the molten liquid glass powder to obtain glass powder particles; drying the glass powder particles at a temperature of 60-80 ° C; The dried glass powder particles are crushed to obtain a glass powder having a particle size of 0.5 to 5. (Vm, and then dried at 80 to 100 ° C to obtain a dried glass powder.
- the quenching method is to pour the molten liquid glass powder into water at 5 to 25 ° C for cooling or flowing.
- the room temperature air is cooled, and the flowing room temperature air temperature is 25 ° C or below.
- the method for fabricating the conductive silver paste on the front side of the crystalline silicon solar cell of the present invention further has the following alternative method:
- the organic vehicle is first mixed with the silicone oil to obtain a first mixture, and then the glass powder and the metal powder are added to the first mixture to be ground to obtain a crystalline silicon solar cell.
- the front electrode is conductive silver paste.
- the organic vehicle is mixed with the silicone oil to obtain a first mixed material
- the glass frit is mixed with the metal powder by ball milling to obtain a second mixed material
- the first mixed material is obtained.
- a mixture material and a second mixture material are subjected to a mask treatment to obtain a conductive silver paste for the front electrode of the crystalline silicon solar cell.
- the glass frit and the organic vehicle are mixed to obtain a first mixture, and then the metal powder, the silicone oil is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell.
- Conductive silver paste is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell.
- the metal powder and the organic carrier are first mixed to obtain a first mixture, and then the glass powder, the silicone oil is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell.
- Conductive silver paste is first mixed to obtain a first mixture, and then the glass powder, the silicone oil is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell.
- the present invention also provides a method for fabricating a front electrode of a crystalline silicon solar cell.
- the fabrication method relates to a crystalline silicon semiconductor device having an insulating film superposed on its surface, the structure of the crystalline silicon semiconductor device is as shown in FIG. 4, and 100 is a crystalline silicon cell sheet having a first surface and a second surface.
- a P/N junction 200, an insulating film 300, and a front electrode 700 are sequentially stacked outwardly on the first surface, and a backside silver paste 500 and a back aluminum paste 600 are printed on the second surface, wherein the insulating film 300 may be nitrogen.
- the method for fabricating the front electrode of the crystalline silicon solar cell includes at least the following steps:
- step S04. providing a crystalline silicon semiconductor device having an insulating film 300 on its surface;
- Step S05 The crystalline silicon solar cell front conductive silver paste 400 according to any one of the above aspects is prepared by screen printing (wherein 401 is metal powder, 402 is organic carrier and silicone oil, and 403 is glass powder). Printed on the surface of the insulating film 300;
- Step S06 sequentially drying, sintering, and cooling the crystalline silicon semiconductor device processed in step S05.
- the crystalline silicon solar cell front electrode 700 is obtained.
- the drying temperature is 80 to 400 ° C
- the sintering temperature is 700 to 820 ° C
- natural cooling is performed.
- the present invention still further provides a crystalline silicon solar cell using the front surface electrode of a crystalline silicon solar cell as described above.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- polyamide wax 1% polymethylphenylsiloxane 0.5%
- the preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten liquid is quenched to obtain glass frit particles, and the crushed particle size is obtained at 0. Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- the conductive silver paste on the front side of the crystalline silicon solar cell is obtained.
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the conductive silver paste on the front side of the crystalline silicon solar cell of Embodiment 1 is printed by screen printing.
- the front surface of the crystalline silicon solar cell of the insulating film, the back surface of the solar cell is screen printed with back silver and back aluminum, and then sintered at 770 ° C to obtain the front surface electrode of the crystalline silicon solar cell, and the screen screen negative grid
- the opening is 23pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- Polyamide wax 1% Polymethylphenylsiloxane 0.5% ;
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 2 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- Polyamide wax 1% Polymethylphenylsiloxane 0.5% ;
- the preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and mixed and mixed at 25-6 o °c.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 3 is printed on the front surface of the crystalline silicon solar cell with the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a crystalline silicon solar cell front conductive silver paste calculated according to the total weight of 100 parts, comprises the following composition ratio components: silver powder 87.5 parts; organic carrier 10.0 parts; glass powder 2.5 parts. [0130] wherein, based on the total weight of the organic vehicle, 100%, the following weight components are included:
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell includes the following steps:
- the front surface conductive silver paste of the crystalline silicon solar cell of Example 4 was printed on the front surface of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- the preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 5 is printed on the front surface of the crystalline silicon solar cell with the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- the preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- Polyamide wax 1% polymethylphenylsiloxane 0.5%; [0187] polyvinyl butyral 1%; methyl silicone oil 0.5%.
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 7 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 9.7 parts of organic vehicle; 2.5 parts of glass powder, 0.3 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
- Polyamide wax 1% Polymethylphenylsiloxane 0.5% ;
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c. [0204]
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain glass frit particles. And after crushing to obtain a particle size of 0 Glass powder powder.
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Example 8 was printed on the front side of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 8.5 parts of organic vehicle; 2.5 parts of glass powder, 1.5 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Example 9 was printed on the front surface of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated based on 100 parts by weight, comprises the following composition ratio components: 86.5 parts of silver powder; 8.0 parts of organic vehicle; 2.5 parts of glass powder, 3 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
- the preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Granules, and after Broken to obtain particle size at 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell includes the following steps:
- the front surface conductive silver paste of the crystalline silicon solar cell in Embodiment 10 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a crystalline silicon solar cell front conductive silver paste calculated according to the total weight of 100 parts, comprising the following composition ratio components: 85 parts of silver powder; 7.5 parts of organic carrier; 2.5 parts of glass powder, 5 parts of methyl silicone oil , based on the total weight of the organic vehicle, 100%, including the following weight components:
- Polyamide wax 1% Polymethylphenylsiloxane 0.5% ;
- the preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass frit comprising the following weight components, based on 100% by weight:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps: [0252] 85 parts of silver powder, 2.5 parts of glass powder, 7.5 parts of organic carrier, and 5 parts of methyl silicone oil were weighed according to the above formula weight ratio, and uniformly mixed and polished to obtain the front surface of the crystalline silicon solar cell. Conductive silver paste.
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell of Example 11 was printed on the front side of a crystalline silicon solar cell having an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back.
- Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
- Polyamide wax 1% Polymethylphenylsiloxane 0.5% ;
- the preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front surface conductive silver paste of the crystalline silicon solar cell in Comparative Example 1 was printed on the front side of a crystalline silicon solar cell having an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm.
- the obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- a conductive silver paste on the front side of a crystalline silicon solar cell calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 9.0 parts of organic vehicle; 2.5 parts of glass powder.
- Polyamide wax 1% polymethylphenylsiloxane 0.5%
- the preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
- the glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
- the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
- the method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
- the conductive silver paste on the front side of the crystalline silicon solar cell is obtained.
- a method for fabricating a front electrode of a crystalline silicon solar cell comprising the steps of:
- the front side conductive silver paste of the crystalline silicon solar cell in Comparative Example 2 was printed on the front side of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back Aluminum, of course After sintering at 770 ° C, the front side electrode of the crystalline silicon solar cell was obtained, and the screen screen secondary gate opening was 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
- Example 1 ⁇ 11 and Comparative Example 1 ⁇ 2 obtained performance statistics of crystalline silicon solar cells
- the solar cell sheets of Examples 1 to 5 have the advantages of high conversion rate and high current.
- the organic vehicle used in the description of Examples 1-5 has superior printing properties.
- the solar cell of Example 6 has low conversion rate, high Rs and high current, and the content of silicone oil in the organic carrier is 40%, and the content of silicone oil in the silver paste is 4%, indicating silver paste. If the content of the silicone oil is too high, the solar cell Rs will rise and the efficiency will decrease.
- the solar cell sheet of Example 7 has a low conversion rate and a low current, indicating that the content of the silicone oil in the silver paste is less than 0.05%, which causes the solar cell current to decrease and the efficiency to decrease.
- Examples 8-11 were the direct addition of silicone oil in the preparation of the front conductive silver paste. It can be seen from Table 1 that the solar cell sheets of Examples 8-10 have high efficiency, and the amount of silicone oil added is 0.3%, 1.5%, and 3.0%, respectively. The solar cell of Example 11 has low efficiency and high Rs. The amount of silicone oil added was 5.0%. The results of Examples 8-11 show that the amount of silicone oil added to the front conductive silver paste is moderate, and too high causes the cell sheet Rs to rise and the efficiency to decrease.
- Comparative Example 1 has very low efficiency and high Rs.
- the secondary gate appearance after printing and sintering has found that the width of the sub-gate of Example 1 is narrow and the surface is relatively flat.
- the high aspect ratio indicates that the front conductive silver paste of Example 1 has good printing performance.
- the appearance of the sub-gate after printing and sintering found that the width of the sub-gate of Comparative Example 1 is wide, the fluctuation of high and low is relatively large, and there are many breakpoints and short points, indicating that the printing performance of the front conductive silver paste of Comparative Example 1 is not good, in the 23-opening The screen is not printed very well.
- FIG. 6A is a photograph of a front electrode after printing and sintering in Example 1, and it can be seen that the width of the sub-gate is 29.6 pm and the height is 15.412 pm.
- FIG. 6B is a photograph of the front electrode after printing and sintering of Comparative Example 1, and it can be seen that the sub-gate thereof The width is 43.4pm and the height is 15.903pm. It can be seen that the front electrode grid line width of Example 1 is narrower than the gate line width of Comparative Example 1 by 13.8 pm, which is why the implementation 1 current is significantly higher than that of Comparative Example 1, in which the organic carrier and the silver paste of Example 1 are used. Each contained 3% and 0.3% of silicone oil, and the organic vehicle and silver paste of Comparative Example 1 did not contain silicone oil.
- Comparative Example 2 has very low efficiency and Rs is very high.
- the secondary gate appearance after printing and sintering shows that the width of the sub-gate of Comparative Example 2 is about 44 pm, and the height is low and low. Larger, there are a lot of breakpoints and short points, indicating that the positive conductive silver paste printing performance of Comparative Example 2 is not good, the net opened at 23pm The version is not printed very well.
- the sub-gate width of the embodiment 10 is about 3 (Vm, the surface is relatively flat, and has a high aspect ratio, indicating that the front side conductive silver paste of the embodiment 10 has good printing performance, wherein the front side of the tenth embodiment is good.
- the conductive silver paste contained 3% of silicone oil, and the front conductive silver paste of Comparative Example 2 did not contain silicone oil.
Abstract
Disclosed are a conductive silver paste for the front surface of a crystalline silicon solar cell and a preparation method therefor and a solar cell. The conductive silver paste for the front surface of a crystalline silicon solar cell comprises the following raw materials in part by weight: 80.0~93.0 parts of metal powder; 6.0~15.0 parts of organic carrier; 1.0~5.0 parts of glass powder; and 0.06~3.75 parts of silicone oil; the silicone oil is at least one selected from the group consisting of methyl silicone oil, ethyl silicon oil, phenyl silicone oil, methyl hydrogen-containing silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl-ethyloxy silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen-containing silicone oil, hydroxy hydrogen-containing silicone oil, and cyanide-containing silicone oil. The conductive silver paste has excellent fine grid wire screen printing performance, can be printed on a screen printing plate with a 23 μm opening, and finally obtains a front surface electrode having excellent aspect ratio, so that the solar cell has the characteristics of high current and high conversion rate.
Description
晶硅太阳能电池正面导电银浆及其制备方法和太阳能电 池 Crystalline silicon solar cell front conductive silver paste, preparation method thereof and solar battery
技术领域 Technical field
[0001] 本发明属于太阳能电池技术领域， 特别涉及一种晶硅太阳能电池正面导电银浆 及其制备方法和太阳能电池。 背景技术 [0001] The present invention relates to the field of solar cell technologies, and in particular, to a front-side conductive silver paste of a crystalline silicon solar cell, a preparation method thereof, and a solar cell. Background technique
[0002] 太阳能是一种取之不尽， 用之不竭的清洁型能源。 随着煤炭、 石油等不可再生 能源的日益枯竭， 开发并利用太阳能成为大热点。 基于这种思路开发的太阳能 电池就是利用太阳能的一种重要手段。 目前， 实现产业化的晶硅太阳能电池已 经成为太阳能电池应用的典范。 [0002] Solar energy is an inexhaustible clean energy source. With the depletion of non-renewable energy sources such as coal and oil, the development and use of solar energy has become a hot spot. Solar cells developed based on this idea are an important means of utilizing solar energy. At present, the realization of industrialized crystalline silicon solar cells has become a model for solar cell applications.
[0003] 电池片作为晶硅太阳能电池的核心组成部分， 为了将光照下产生的电流收集并 导出， 需要在电池片的正面及背面上分别制作一个电极。 制造电极的方法多种 多样， 其中丝网印刷及共烧是目前最为普遍的一种生产工艺。 如正面电极的制 造中， 采用丝网印刷的方式将导电浆料涂覆于硅片上， 并通过烧结在硅片正面 上形成正面电极。 烧结后的晶硅太阳能电池正面电极需要在硅片上附着牢固， 栅线窄而高， 遮光面积小， 易于焊接， 硅太阳能电池正面电极用导电浆料要具 备在烧结过程中穿透氮化硅减反射膜的能力， 与硅电池片形成良好的欧姆接触 [0003] A cell sheet is a core component of a crystalline silicon solar cell. In order to collect and derive the current generated by illumination, it is necessary to fabricate one electrode on the front and back sides of the cell sheet. There are various methods for manufacturing electrodes, and screen printing and co-firing are currently the most common production processes. In the manufacture of the front electrode, a conductive paste is applied to the silicon wafer by screen printing, and a front electrode is formed on the front surface of the silicon wafer by sintering. The front electrode of the sintered crystalline silicon solar cell needs to be firmly adhered on the silicon wafer, the gate line is narrow and high, the light shielding area is small, and the welding is easy, and the conductive paste for the front electrode of the silicon solar cell needs to have the silicon nitride penetrated during the sintering process. The ability of anti-reflection film to form good ohmic contact with silicon cells
[0004] 常见的晶硅太阳能电池正面导电银浆由银粉、 玻璃粉、 有机载体组成， 导电银 浆被使用丝网印刷的方式印刷到电池片表面， 经过烧结形成正面电极。 正面导 电银浆的丝网印刷性能对其整体使用性能很重要， 有机载体是决定其丝网印刷 性能的主要因素。 为了提高太阳能电池片转化效率， 需要正面导电银浆能够在 更细的丝网副栅开口上印刷并且印刷出的副栅具有优良的高宽比， 栅线高度与 宽度比例越大， 其电阻低， 电池片效率高， 丝网副栅开口越细， 印刷到电池片 表面的正面导电银浆副栅宽度就越细， 对电池片表面的遮盖就越少， 电池片用 于接收太阳能光的面积就越大， 其转化效率就高， 但是丝网副栅开口越细， 印
刷的难度越大， 要求正面导电银浆的过网印刷性能更好。 [0004] A common crystalline silicon solar cell front conductive silver paste is composed of silver powder, glass powder, and an organic carrier, and the conductive silver paste is printed on the surface of the battery sheet by screen printing, and is sintered to form a front electrode. The screen printing performance of the front conductive silver paste is important for its overall performance, and the organic carrier is the main factor determining its screen printing performance. In order to improve the conversion efficiency of solar cells, it is required that the front conductive silver paste can be printed on the finer screen sub-gate opening and the printed sub-gate has an excellent aspect ratio, and the ratio of the height and width of the gate line is larger, and the resistance is low. The efficiency of the battery sheet is high, and the finer the screen sub-gate opening, the thinner the width of the front conductive silver paste sub-gate printed on the surface of the battery sheet, the less the surface of the battery sheet is covered, and the area of the battery sheet for receiving solar light. The larger the conversion efficiency is, but the finer the screen sub-gate opening, the more The more difficult the brush is, the better the over-net printing performance of the front conductive silver paste is required.
发明概述 Summary of invention
技术问题 technical problem
[0005] 本发明所要解决的技术问题是： 提供一种晶硅太阳能电池正面导电银浆及其制 备方法， 以解决现有正面导电银浆存在的不能在细线上印刷， 从而导致正面导 电银浆必须在比较宽的开口的丝网上才能印刷到电池片上， 使得烧结后的正面 电极宽度宽， 遮盖太阳能电池面积大， 减少了有效的太阳能电池利用面积， 最 终使得电池片光电转化效率低的问题。 [0005] The technical problem to be solved by the present invention is: providing a front-side conductive silver paste of a crystalline silicon solar cell and a preparation method thereof, so as to solve the problem that the existing front conductive silver paste cannot be printed on a thin line, thereby causing front conductive silver The slurry must be printed on the cell sheet on a relatively wide open screen, so that the width of the front electrode after sintering is wide, the area of the solar cell is covered, the effective utilization area of the solar cell is reduced, and the photoelectric conversion efficiency of the cell is low. .
[0006] 进一步地， 本发明还提供一种晶硅太阳能电池正面电极的制作方法及太阳能电 池。 Further, the present invention also provides a method for fabricating a front electrode of a crystalline silicon solar cell and a solar battery.
问题的解决方案 Problem solution
技术解决方案 Technical solution
[0007] 为了实现上述发明目的， 本发明采用的技术方案如下： [0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows:
[0008] 一种晶体硅太阳能电池正面导电银浆， 按照总重量为 100份计， 包括如下配方 比例的组分： [0008] A crystalline silicon solar cell front conductive silver paste, based on a total weight of 100 parts, comprising the following composition ratio components:
[0009] 金属粉 80.0~93.0份； [0009] metal powder 80.0~93.0 parts;
[0010] 有机载体 6.0~15.0份； [0010] organic carrier 6.0~15.0 parts;
[0011] 玻璃粉 1.0~5.0份； [0011] glass powder 1.0~5.0 parts;
[0012] 硅油 0.1~3.75份 [0012] Silicone oil 0.1~3.75 parts
[0013] 其中， 所述桂油为甲基桂油、 乙基桂油、 苯基桂油、 甲基含氯桂油、 甲基苯基 硅油、 甲基氯苯基硅油、 甲基乙氧基硅油、 甲基三氟丙基硅油、 甲基乙烯基硅 油、 甲基羟基硅油、 乙基含氢硅油、 羟基含氢硅油、 含氰硅油中的至少一种。 [0013] wherein, the lauric oil is methyl laurel oil, ethyl laurel oil, phenyl laurel oil, methyl chloro oleic acid, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxylate At least one of silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, and cyanogen-containing silicone oil.
[0014] 相应地， 一种晶硅太阳能电池正面导电银浆的制备方法， 至少包括以下步骤： [0015] 步骤 S01.将玻璃粉原料组分进行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处 理， 得到玻璃粉颗粒， 并经过破碎获得粒径在 0.1~5.(Vm的玻璃粉粉末； [0014] Correspondingly, a method for preparing a conductive silver paste on a front side of a crystalline silicon solar cell comprises at least the following steps: [0015] Step S01: melting a glass frit raw material component to obtain a glass frit melt, the molten metal The quenching treatment is carried out to obtain glass powder particles, and after crushing, a glass powder powder having a particle diameter of 0.1 to 5. (Vm;
[0016] 步骤 S02.将有机载体原料置于 40~100°C环境中进行混合处理， 得到有机载体； [0017] 步骤 S03.将金属粉与步骤 S01得到的玻璃粉粉末、 步骤 S02得到的有机载体、 硅 油进行混料处理， 获得晶硅太阳能电池正面导电银浆。
[0018] 相应地， 一种晶硅太阳能电池正面电极的制作方法， 至少包括以下步骤： [0016] Step S02. The organic carrier raw material is placed in an environment of 40 to 100 ° C for mixing treatment to obtain an organic vehicle; [0017] Step S03. The metal powder and the glass powder powder obtained in Step S01, the organic obtained in Step S02 The carrier and the silicone oil are mixed to obtain a conductive silver paste on the front side of the crystalline silicon solar cell. [0018] Correspondingly, a method for fabricating a front surface electrode of a crystalline silicon solar cell includes at least the following steps:
[0019] 提供表面叠设有绝缘膜的晶体硅半导体元件； [0019] providing a crystalline silicon semiconductor component having an insulating film on its surface;
[0020] 以印制的方式将上述的晶硅太阳能电池正面导电银浆印制于所述绝缘膜表面， 随后依次进行干燥、 烧结、 冷却处理， 得到晶硅太阳能电池正面电极。 [0020] The above-mentioned crystalline silicon solar cell front conductive silver paste is printed on the surface of the insulating film by printing, and then sequentially dried, sintered, and cooled to obtain a front surface electrode of the crystalline silicon solar cell.
[0021] 以及， 一种晶硅太阳能电池， 所述晶硅太阳能电池采用如上所述的晶硅太阳能 电池正面电极。 [0021] Also, a crystalline silicon solar cell using the front surface electrode of a crystalline silicon solar cell as described above.
发明的有益效果 Advantageous effects of the invention
有益效果 Beneficial effect
[0022] 相对于现有技术， 本发明提供的晶硅太阳能电池正面导电银浆中含有硅油， 使 得正面导电银浆过网性能和流动性能得以改善， 丝网印刷性能大幅改善， 可以 在更窄开口的丝网上印刷， 其制作的正面银电极宽度更窄， 获得更好的高宽比 ， 减少对太阳能电池的遮盖面积， 使太阳能电池接收太阳光的有效面积增加， 从而提高太阳能电池的转化效率和利用效率。 Compared with the prior art, the present invention provides a silicon-silicate solar cell with a silicone oil in the front conductive silver paste, which improves the performance and flow performance of the front conductive silver paste, and the screen printing performance is greatly improved, and can be narrower. Printing on the open screen, the front side of the silver electrode is made narrower, obtaining a better aspect ratio, reducing the coverage area of the solar cell, increasing the effective area of the solar cell to receive sunlight, thereby improving the conversion efficiency of the solar cell. And use efficiency.
[0023] 本发明提供的晶硅太阳能电池正面导电银浆的制备方法， 工艺条件简单， 获得 的正面导电银浆组分均匀且性能良好， 适于工业大规模生产。 [0023] The preparation method of the front surface conductive silver paste of the crystalline silicon solar cell provided by the invention has simple process conditions, and the obtained front conductive silver paste component has uniform composition and good performance, and is suitable for industrial mass production.
对附图的简要说明 Brief description of the drawing
附图说明 DRAWINGS
[0024] 图 1为本发明提供的晶硅太阳能电池正面导电银浆的制备方法工艺流程示意图 1 is a schematic view showing a process flow for preparing a conductive silver paste on a front side of a crystalline silicon solar cell according to the present invention;
[0025] 图 2为本发明提供的晶硅太阳能电池正面电极的制作方法工艺流程示意图； [0026] 图 3为本发明提供的在表面具有绝缘膜的晶体硅半导体元件上印刷了本发明所 述的正面导电银浆的示意图； 2 is a schematic view showing a process flow of a method for fabricating a front electrode of a crystalline silicon solar cell according to the present invention; [0026] FIG. 3 is a view showing the present invention for printing a crystalline silicon semiconductor device having an insulating film on its surface. Schematic diagram of the front conductive silver paste;
[0027] 图 4为本发明图 3中印刷了正面和背面正面导电银浆的晶体硅半导体元件烧结后 的示意图； 4 is a schematic view of the crystalline silicon semiconductor device printed with the front and back front conductive silver pastes in FIG. 3 in accordance with the present invention; [0027] FIG.
[0028] 图 5为 180度拉伸测试示意图； [0028] FIG. 5 is a schematic diagram of a 180 degree tensile test;
[0029] 图 6A为实施例 1制作的正面电极形貌， 正面电极宽度为 29.6pm， 丝网网版开口 23pm， 实施例 1的正面导电银浆含有 3%的硅油； 6A is a front electrode topography of the first embodiment, the front electrode width is 29.6 pm, the screen screen opening 23 pm, and the front conductive silver paste of the embodiment 1 contains 3% of silicone oil;
[0030] 图 6B为对比例 1制作的正面电极形貌， 正面电极宽度为 43.4—， 丝网网版开口 2
3[im 对比例 1的正面导电银浆不含桂油； 6B is a front electrode topography prepared in Comparative Example 1, the front electrode width is 43.4—, the screen screen opening 2 3[im Comparative Example 1 of the front conductive silver paste does not contain laurel oil;
[0031] 其中， 100-晶体硅电池片； 200-P/N结； 300 -绝缘膜； 400-印刷的正面导电银浆 ， 401 -金属粉， 402 -有机载体， 403 -玻璃粉； 500 -印刷的背面银浆； 600-印刷的 背面铝浆； 700 -正面电极； 800-焊带； 900 -拉伸机； 901 -拉伸机样品第一固定螺 栓； 902 -拉伸机样品第二固定螺栓； F-拉力方向。 [0031] wherein, 100-crystalline silicon cell sheet; 200-P/N junction; 300-insulating film; 400-printed front conductive silver paste, 401-metal powder, 402-organic carrier, 403-glass powder; Printed back silver paste; 600-printed back aluminum paste; 700 - front electrode; 800-welded strip; 900 - stretcher; 901 - stretcher sample first fixing bolt; 902 - stretcher sample second fixed Bolt; F-pull direction.
发明实施例 Invention embodiment
本发明的实施方式 Embodiments of the invention
[0032] 为了使本发明要解决的技术问题、 技术方案及有益效果更加清楚明白， 以下结 合实施例和附图， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具 体实施例仅仅用以解释本发明， 并不用于限定本发明。 [0032] In order to make the technical problems, technical solutions, and advantageous effects to be solved by the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0033] 在本发明中， 晶体硅、 硅晶均表示相同的意思。 [0033] In the present invention, both crystalline silicon and silicon crystals mean the same meaning.
[0034] 本发明采用的技术方案如下： 一种晶硅太阳能电池正面导电银浆， 按照重量份 为 100计， 包括以下原料组分： [0034] The technical scheme adopted by the present invention is as follows: A front side conductive silver paste of a crystalline silicon solar cell, in terms of 100 parts by weight, comprising the following raw material components:
[0035] 金属粉 80.0~93.0份； 有机载体 6.0~ 15.0份； 玻璃粉 1.0~5.0份； 硅油 0.06~3.75份 [0035] metal powder 80.0~93.0 parts; organic carrier 6.0~15.0 parts; glass powder 1.0~5.0 parts; silicone oil 0.06~3.75 parts
[0036] 优选地， 所述金属粉为银、 金、 铂、 铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰、[0036] Preferably, the metal powder is silver, gold, platinum, copper, iron, nickel, zinc, titanium, cobalt, chromium, smear, manganese,
I巴、 铑中的至少一种。 At least one of I and 铑.
[0037] 进一步优选地， 所述金属粉为银包覆的铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰 中的至少一种， 其中， 银包覆层的厚度为 10~50nm [0037] Further preferably, the metal powder is at least one of silver-coated copper, iron, nickel, zinc, titanium, cobalt, chromium, molybdenum, and manganese, wherein the thickness of the silver coating layer is 10~ 50nm
[0038] 优选地， 所述金属粉为非银包覆的金属粉和银包覆的金属粉的混合体， 其中， 所述非银包覆的金属粉与银包覆的金属粉的重量比为 5/95~95/5 非银包覆的金 属粉为银、 金、 铂、 铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰、 ffi、 铑中的至少 一种； 银包覆的金属粉为铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰中的至少一种 ， 所述银包覆层的厚度为 10~50nm [0038] Preferably, the metal powder is a mixture of a non-silver coated metal powder and a silver coated metal powder, wherein a weight ratio of the non-silver coated metal powder to the silver coated metal powder The metal powder coated with 5/95 to 95/5 non-silver is at least one of silver, gold, platinum, copper, iron, nickel, zinc, titanium, cobalt, chromium, smear, manganese, ffi, samarium; The coated metal powder is at least one of copper, iron, nickel, zinc, titanium, cobalt, chromium, magnesium, and manganese, and the thickness of the silver coating layer is 10 to 50 nm.
[0039] 本发明中所述有机载体包括有机溶剂、 聚合物、 润湿分散剂、 触变剂及其他功 能助剂等。 The organic vehicle in the present invention includes an organic solvent, a polymer, a wetting and dispersing agent, a thixotropic agent, and other functional additives.
[0040] 以所述有机载体重量为 100份计， 包括以下组分： [0040] The weight of the organic vehicle is 100 parts, and the following components are included:
[0041] 有机溶剂 50~95份； 聚合物 1~40份； 润湿分散剂 0.1~ 10份； 触变剂 1~20份； 其
他功能助剂 0.1~20。 [0041] organic solvent 50~95 parts; polymer 1~40 parts; wetting and dispersing agent 0.1~10 parts; thixotropic agent 1~20 parts; His functional additives are 0.1~20.
[0042] 所述硅油为甲基硅油、 乙基硅油、 苯基硅油、 甲基含氢硅油、 甲基苯基硅油、 甲基氯苯基硅油、 甲基乙氧基硅油、 甲基三氟丙基硅油、 甲基乙烯基硅油、 甲 基羟基硅油、 乙基含氢硅油、 羟基含氢硅油、 含氰硅油中的至少一种。 [0042] The silicone oil is methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoropropyl At least one of a base silicone oil, a methyl vinyl silicone oil, a methyl hydroxy silicone oil, an ethyl hydrogen silicone oil, a hydroxyl hydrogen silicone oil, and a cyanide-containing silicone oil.
[0043] 所述有机溶剂选自松油醇、 丁卡、 乙二醇丁醚醋酸酯、 乙二醇乙醚醋酸酯、 十 二醇酯、 二乙二醇丁醚、 三乙二醇丁醚、 三丙二醇甲醚、 萜烯类等高沸点溶剂 中的至少一种。 [0043] the organic solvent is selected from the group consisting of terpineol, tetracaine, ethylene glycol butyl ether acetate, ethylene glycol ethyl ether acetate, decadiol ester, diethylene glycol butyl ether, triethylene glycol butyl ether, At least one of a high boiling point solvent such as tripropylene glycol methyl ether or decene.
[0044] 所述聚合物选自乙基纤维素、 甲基纤维素、 纤维素及其衍生物、 丙烯酸树脂、 醇酸树脂、 聚酯树脂中的至少一种。 [0044] The polymer is selected from at least one of ethyl cellulose, methyl cellulose, cellulose and derivatives thereof, acrylic resin, alkyd resin, and polyester resin.
[0045] 所述润湿分散剂选自脂肪酸 (油酸、 硬酯酸等)、 脂肪酸的酰胺衍生物 (油酸酰胺 、 硬脂酰胺等)、 脂肪酸的酯类衍生物、 聚乙烯蜡、 聚乙二醇中的至少一种， 主 要用于帮助无机粉体在有机载体中的分散。 [0045] The wetting and dispersing agent is selected from the group consisting of fatty acids (oleic acid, stearic acid, etc.), amide derivatives of fatty acids (oleic acid amide, stearic acid amide, etc.), ester derivatives of fatty acids, polyethylene wax, poly At least one of ethylene glycol is mainly used to assist dispersion of the inorganic powder in the organic vehicle.
[0046] 所述触变剂选自氢化蓖麻油衍生物、 聚酰胺蜡、 聚脲、 气相二氧化硅中的一种 或者两种以上， 主要用于提高正面导电银浆在印刷过程中的触变性， 使银浆在 印刷过程中受到剪切时， 稠度变小， 容易丝网印刷， 停止剪切时， 稠度又增加 ， 以保证电极有优异的高宽比。 [0046] the thixotropic agent is selected from the group consisting of hydrogenated castor oil derivatives, polyamide wax, polyurea, fumed silica, or two or more, mainly used to improve the contact of the front conductive silver paste in the printing process. Denaturation, when the silver paste is sheared during the printing process, the consistency becomes small, and it is easy to screen-print. When the shearing is stopped, the consistency is increased to ensure the electrode has an excellent aspect ratio.
[0047] 所述其他功能助剂选自聚甲基苯基硅氧烷、 聚苯基硅氧烷、 邻苯二甲酸酯类( 如邻苯二甲酸二乙酯、 邻苯二甲酸二丁酯等)、 微晶蜡、 聚二甲基硅氧烷、 聚乙 烯醇缩丁醛 (PVB)、 聚醚聚酯改性有机硅氧烷、 烷基改性有机硅氧烷中的至少一 种。 所述其他功能助剂可根据需要选择添加， 如加入微晶蜡等以降低表面张力 ， 加入邻苯二甲酸二丁酯 (DBP)等以改善正面导电银浆的柔韧性， 加入聚乙烯醇 缩丁醛 (PVB)等改善黏附力。 [0047] The other functional auxiliary is selected from the group consisting of polymethylphenylsiloxane, polyphenylsiloxane, phthalate (such as diethyl phthalate, dibutyl phthalate) And so on, at least one of microcrystalline wax, polydimethylsiloxane, polyvinyl butyral (PVB), polyether polyester-modified organosiloxane, and alkyl-modified organosiloxane. The other functional additives may be added according to requirements, such as adding microcrystalline wax to reduce surface tension, adding dibutyl phthalate (DBP), etc. to improve the flexibility of the front conductive silver paste, adding polyvinyl alcohol Butanal (PVB) and the like improve adhesion.
[0048] 所述的玻璃粉为有铅玻璃粉和无铅玻璃粉中的一种或者两种混合。 [0048] The glass frit is one or a mixture of leaded glass powder and lead-free glass powder.
[0049] 所述的有铅玻璃粉以重量为 100%计， 包括以下组分： [0049] The leaded glass powder is 100% by weight, and includes the following components:
[0050] PbO 0.1-50%； TeO 2 5~50%； Li 20 0.5-35.0%； Bi 20 3 1.0-35.0%； 添加元素的 氧化物 0~40.0%。 [0050] PbO 0.1-50%; TeO 2 5~50%; Li 2 0 0.5-35.0%; Bi 2 0 3 1.0-35.0%; added elemental oxide 0~40.0%.
[0051] 优选地， 添加元素的氧化物中添加元素为钛、 招、 银、 铬、 钪、 铜、 铌、 钒、 钠、 祖、 徳、 溴、 钴、 給、 镧、 、 镱、 铁、 钡、 锰、 锡、 镍、 锡、 砷、 错、
钾、 磷、 铟、 镓、 锗， 硅、 硼、 锌、 钨、 镁等中的一种或者两种及以上。 [0051] Preferably, the added element in the oxide of the added element is titanium, smear, silver, chromium, bismuth, copper, bismuth, vanadium, sodium, ancestor, bismuth, bromine, cobalt, ruthenium, osmium, iridium, iron, Bismuth, manganese, tin, nickel, tin, arsenic, wrong, One or two or more of potassium, phosphorus, indium, gallium, germanium, silicon, boron, zinc, tungsten, magnesium, and the like.
[0052] 所述的无铅玻璃粉以重量为 100%计， 包括以下组分： [0052] The lead-free glass powder is 100% by weight, and includes the following components:
[0053] TeO 2 40~70%； Li 20 2-30.0%； Bi 20 3 5-35.0%； 添加元素的氧化物 0~40.0%。 TeO 2 40~70%; Li 2 0 2-30.0%; Bi 2 0 3 5-35.0%; oxide of added element 0~40.0%.
[0054] 优选地， 添加元素的氧化物中添加元素为钛、 招、 银、 铬、 钪、 铜、 铌、 钒、 钠、 祖、 徳、 溴、 钴、 給、 镧、 、 镱、 铁、 钡、 锰、 锡、 镍、 锡、 砷、 错、 钾、 磷、 铟、 镓、 锗， 硅、 硼、 锌、 钨、 镁等中的一种或者两种及以上。 [0054] Preferably, the added element in the oxide of the added element is titanium, smear, silver, chromium, bismuth, copper, bismuth, vanadium, sodium, ancestor, bismuth, bromine, cobalt, ruthenium, osmium, iridium, iron, One or two or more of ruthenium, manganese, tin, nickel, tin, arsenic, potassium, phosphorus, indium, gallium, germanium, silicon, boron, zinc, tungsten, magnesium, and the like.
[0055] 相应地， 本发明还提供上述晶硅太阳能电池正面导电银浆的制备方法。 Correspondingly, the present invention also provides a method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell.
[0056] 如图 1所示， 在一个实施例中， 晶硅太阳能电池正面导电银浆的制备方法至少 包括以下步骤： [0056] As shown in FIG. 1, in one embodiment, a method for preparing a conductive silver paste on a front side of a crystalline silicon solar cell includes at least the following steps:
[0057] 步骤 S01.将玻璃粉原料组分进行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处 理， 得到玻璃粉颗粒， 并经过破碎获得粒径在 0.1~5.(Vm的玻璃粉粉末； [0057] Step S01. The glass frit raw material component is melted to obtain a glass frit melt, and the molten liquid is quenched to obtain a glass frit particle, and is crushed to obtain a glass powder having a particle diameter of 0.1 to 5. (Vm) Powder
[0058] 步骤 S02.将有机载体原料置于 40~100°C环境中进行混合处理， 得到有机载体； [0058] Step S02. The organic carrier raw material is placed in an environment of 40 to 100 ° C for mixing treatment to obtain an organic carrier;
[0059] 步骤 S03.将金属粉与步骤 S01得到的玻璃粉粉末、 步骤 S02得到的有机载体和硅 油进行混料处理， 获得晶硅太阳能电池正面导电银浆。 [0059] Step S03. The metal powder is mixed with the glass powder powder obtained in step S01, the organic vehicle obtained in step S02, and the silicone oil to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0060] 下面对所述晶硅太阳能电池正面导电银浆的制备方法做更加详细的解释说明。 [0060] The preparation method of the conductive silver paste on the front side of the crystalline silicon solar cell is explained in more detail below.
[0061] 其中， 所述有机载体可以采用如下的方法制备： 按上所述有机载体原料重量比 例依次称取有机载体的原料， 将称取的有机载体原料放入容器， 在 40~100°C的 温度下搅拌混合 100~160min， 得到有机载体。 [0061] wherein, the organic carrier can be prepared by the following method: the raw material of the organic carrier is weighed according to the weight ratio of the organic carrier raw materials, and the weighed organic carrier raw material is placed in the container at 40~100 ° C The mixture was stirred and mixed at a temperature of 100 to 160 minutes to obtain an organic vehicle.
[0062] 所述玻璃粉为含铅玻璃粉和不含铅玻璃粉中的一种或者两种混合。 所述玻璃粉 为晶体、 非晶体或者非晶体与晶体的混合物。 [0062] The glass frit is one or a mixture of lead-containing glass powder and lead-free glass powder. The glass frit is crystalline, amorphous or a mixture of amorphous and crystalline.
[0063] 其中， 所述玻璃粉可以采用如下方法制备： [0063] wherein the glass frit can be prepared by the following method:
[0064] 按照如上所述的原料比例称取玻璃粉原料并且进行均匀混合； 将混合均匀的所 述玻璃粉原料放入加热炉加热至 900~1100°C， 并在 900~1100°C下保温 60~180min ， 得到熔融的液态玻璃粉； 将所述熔融的液态玻璃粉进行骤冷处理， 得到玻璃 粉颗粒； 将所述玻璃粉颗粒置于 60~80°C温度中烘干； 对所述的干燥的玻璃粉颗 粒进行破碎处理得到粒度 0.5~5.(Vm的玻璃粉粉， 然后在 80~100°C烘干得到干燥 的玻璃粉粉。 [0064] The glass frit raw material is weighed according to the raw material ratio as described above and uniformly mixed; the uniformly mixed glass frit raw material is placed in a heating furnace and heated to 900-1100 ° C, and is kept at 900-1100 ° C 60~180min, obtaining molten liquid glass powder; quenching the molten liquid glass powder to obtain glass powder particles; drying the glass powder particles at a temperature of 60-80 ° C; The dried glass powder particles are crushed to obtain a glass powder having a particle size of 0.5 to 5. (Vm, and then dried at 80 to 100 ° C to obtain a dried glass powder.
[0065] 优选地， 所述骤冷方式为将熔融的液态玻璃粉倒入 5~25°C水中冷却或者在流动
的室温空气中冷却， 流动的室温空气温度在 25°C及以下。 [0065] Preferably, the quenching method is to pour the molten liquid glass powder into water at 5 to 25 ° C for cooling or flowing. The room temperature air is cooled, and the flowing room temperature air temperature is 25 ° C or below.
[0066] 本发明所述晶硅太阳能电池正面导电银浆的制作方法还有如下替换方法： [0066] The method for fabricating the conductive silver paste on the front side of the crystalline silicon solar cell of the present invention further has the following alternative method:
[0067] 在一个实施方案中， 先将有机载体与硅油进行混料处理， 获得第一混合物料， 随后再将玻璃粉、 金属粉加入所述第一混合物料中研磨处理， 得到晶硅太阳能 电池正面电极导电银浆。 [0067] In one embodiment, the organic vehicle is first mixed with the silicone oil to obtain a first mixture, and then the glass powder and the metal powder are added to the first mixture to be ground to obtain a crystalline silicon solar cell. The front electrode is conductive silver paste.
[0068] 在另一个实施方案中， 将有机载体与硅油进行混料处理， 获得第一混合物料， 同时将上述玻璃粉与金属粉进行球磨混合处理， 获得第二混合物料， 最后将所 述第一混合物料和第二混合物料进行掩膜处理， 得到晶硅太阳能电池正面电极 导电银浆。 [0068] In another embodiment, the organic vehicle is mixed with the silicone oil to obtain a first mixed material, and the glass frit is mixed with the metal powder by ball milling to obtain a second mixed material, and finally the first mixed material is obtained. A mixture material and a second mixture material are subjected to a mask treatment to obtain a conductive silver paste for the front electrode of the crystalline silicon solar cell.
[0069] 在又一个实施例中， 将上述玻璃粉和有机载体进行混合， 得到第一混合物， 再 往该第一混合物中加入金属粉、 硅油， 然后进行研磨处理， 得到晶硅太阳能电 池正面电极导电银浆。 [0069] In still another embodiment, the glass frit and the organic vehicle are mixed to obtain a first mixture, and then the metal powder, the silicone oil is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell. Conductive silver paste.
[0070] 在又一个实施方案中， 先将金属粉和有机载体进行混合， 得到第一混合物， 再 向该第一混合物中加入玻璃粉、 硅油， 然后进行研磨处理， 得到晶硅太阳能电 池正面电极导电银浆。 [0070] In still another embodiment, the metal powder and the organic carrier are first mixed to obtain a first mixture, and then the glass powder, the silicone oil is added to the first mixture, and then ground to obtain a front electrode of the crystalline silicon solar cell. Conductive silver paste.
[0071] 请参考图 2、 图 3及图 4， 本发明还提供一种晶硅太阳能电池正面电极的制作方 法。 Referring to FIG. 2, FIG. 3 and FIG. 4, the present invention also provides a method for fabricating a front electrode of a crystalline silicon solar cell.
[0072] 所述制作方法涉及表面叠设有绝缘膜的晶体硅半导体元件， 所述晶体硅半导体 元件的结构如图 4所示， 100为具有相对第一表面和第二表面的晶体硅电池片， 在第一表面向外依次叠设有 P/N结 200、 绝缘膜 300、 正面电极 700， 在第二表面 上印刷有背面银浆 500、 背面铝浆 600, 其中， 绝缘膜 300可以是氮化硅膜、 氧化 钛膜、 氧化铝膜、 氧化硅膜中的至少一种。 [0072] The fabrication method relates to a crystalline silicon semiconductor device having an insulating film superposed on its surface, the structure of the crystalline silicon semiconductor device is as shown in FIG. 4, and 100 is a crystalline silicon cell sheet having a first surface and a second surface. a P/N junction 200, an insulating film 300, and a front electrode 700 are sequentially stacked outwardly on the first surface, and a backside silver paste 500 and a back aluminum paste 600 are printed on the second surface, wherein the insulating film 300 may be nitrogen. At least one of a silicon film, a titanium oxide film, an aluminum oxide film, and a silicon oxide film.
[0073] 具体地， 所述晶硅太阳能电池正面电极的制作方法， 至少包括以下步骤： [0073] Specifically, the method for fabricating the front electrode of the crystalline silicon solar cell includes at least the following steps:
[0074] 如图 3所示， 步骤 S04.提供表面叠设有绝缘膜 300的晶体硅半导体元件； [0074] As shown in FIG. 3, step S04. providing a crystalline silicon semiconductor device having an insulating film 300 on its surface;
[0075] 步骤 S05.通过丝网印制的方式将如上任一种方案所述的晶硅太阳能电池正面导 电银浆 400（其中， 401为金属粉、 402为有机载体和硅油、 403为玻璃粉）印制于所 述绝缘膜 300表面； [0075] Step S05. The crystalline silicon solar cell front conductive silver paste 400 according to any one of the above aspects is prepared by screen printing (wherein 401 is metal powder, 402 is organic carrier and silicone oil, and 403 is glass powder). Printed on the surface of the insulating film 300;
[0076] 步骤 S06.对步骤 S05处理后的晶体硅半导体元件依次进行干燥、 烧结、 冷却处
理， 得到晶硅太阳能电池正面电极 700。 [0076] Step S06. sequentially drying, sintering, and cooling the crystalline silicon semiconductor device processed in step S05. The crystalline silicon solar cell front electrode 700 is obtained.
[0077] 具体地， 干燥温度为 80~400°C， 烧结温度为 700~820°C， 自然冷却。 [0077] Specifically, the drying temperature is 80 to 400 ° C, the sintering temperature is 700 to 820 ° C, and natural cooling is performed.
[0078] 本发明还进一步地提供一种晶硅太阳能电池， 所述晶硅太阳能电池采用如上所 述的晶硅太阳能电池正面电极。 The present invention still further provides a crystalline silicon solar cell using the front surface electrode of a crystalline silicon solar cell as described above.
[0079] 为了更好的说明本发明实施例提供的晶硅太阳能电池正面导电银浆及其制备方 法， 下面通过多个实施例进一步解释说明。 [0079] In order to better illustrate the front side conductive silver paste of the crystalline silicon solar cell provided by the embodiment of the present invention and a method for preparing the same, the following further explains by way of various embodiments.
[0080] 实施例 1 Embodiment 1
[0081] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0082] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0083] 松油醇 30%； 乙二醇丁醚醋酸酯 25% ; [0083] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0084] 乙二醇乙醚醋酸酯 15%; 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0085] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0086] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 15% ; [0086] Polyethylene wax 0.5%; hydrogenated castor oil derivative 15%;
[0087] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; [0087] polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0088] 聚乙烯醇缩丁醛 1%; 甲基硅油 3%。 [0088] polyvinyl butyral 1%; methyl silicone oil 3%.
[0089] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。 [0089] The preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
[0090] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0090] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0091] Pb0 25%、 Te0 2 35%、 Li 20 0.5% ^ Si0 2 6%、 B 20 3 6%、 Bi 20 3 14.4%、 ZnOPb0 25%, Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6%, B 2 0 3 6%, Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 Al 2O 3 0.1%。 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, Al 2 O 3 0.1%. The glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten liquid is quenched to obtain glass frit particles, and the crushed particle size is obtained at 0. Glass powder powder;
[0092] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0092] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0093] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 所述有机载体 10. [0093] 87.5 parts of silver powder, 2.5 parts of glass powder powder, and the organic vehicle were weighed according to the weight ratio of the above formula.
0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 0 parts, after uniform mixing and grinding treatment, the conductive silver paste on the front side of the crystalline silicon solar cell is obtained.
[0094] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0094] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0095] 通过丝网印制的方式， 将实施例 1中晶硅太阳能电池正面导电银浆印制在具有
绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0095] The conductive silver paste on the front side of the crystalline silicon solar cell of Embodiment 1 is printed by screen printing. The front surface of the crystalline silicon solar cell of the insulating film, the back surface of the solar cell is screen printed with back silver and back aluminum, and then sintered at 770 ° C to obtain the front surface electrode of the crystalline silicon solar cell, and the screen screen negative grid The opening is 23pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0096] 实施例 2 Example 2
[0097] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0098] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0098] wherein, based on the total weight of the organic vehicle is 100%, the following weight components are included:
[0099] 松油醇 30%； 乙二醇丁醚醋酸酯 25% ; [0099] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0100] 乙二醇乙醚醋酸酯 15%; 甲基纤维素 3% Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%
[0101] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0102] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 8% ; [0102] Polyethylene wax 0.5%; hydrogenated castor oil derivative 8%;
[0103] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1% ; polymethylphenylsiloxane 0.5% ;
[0104] 聚乙烯醇缩丁醛 1%; 苯基硅油 10%。 [0104] polyvinyl butyral 1%; phenyl silicone oil 10%.
[0105] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。 [0105] The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
[0106] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0106] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0107] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0108] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0108] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0109] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0109] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0110] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0110] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0111] 通过丝网印制的方式， 将实施例 2中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm; 测获得的所述电池片的效率， 结果汇总在表 1中。
[0112] 实施例 3 [0111] The front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 2 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back. Aluminum, which was then sintered at 770 ° C, gave the front side electrode of the crystalline silicon solar cell with a screen screen secondary gate opening of 23 pm; the obtained efficiency of the cell sheet was measured, and the results are summarized in Table 1. Example 3
[0113] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 [0113] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0114] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0114] wherein, based on the total weight of the organic vehicle, 100%, the following weight components are included:
[0115] 松油醇 25%； 乙二醇丁醚醋酸酯 15% ; [0115] terpineol 25%; ethylene glycol butyl ether acetate 15%;
[0116] 乙二醇乙醚醋酸酯 15%; 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0117] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0118] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 8% ; [0118] Polyethylene wax 0.5%; hydrogenated castor oil derivative 8%;
[0119] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1% ; polymethylphenylsiloxane 0.5% ;
[0120] 聚乙烯醇缩丁醛 1%; 甲基含氢硅油 25%。 [0120] polyvinyl butyral 1%; methyl hydrogen silicone oil 25%.
[0121] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。 The preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and mixed and mixed at 25-6 o °c.
[0122] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0122] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0123] Pb0 25%、 Te0 2 35%、 Li 20 0.5% ^ Si0 2 6%、 B 20 3 6%、 Bi 20 3 14.4%、 ZnOPb0 25%, Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6%, B 2 0 3 6%, Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0124] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0124] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0125] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0125] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0126] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0126] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0127] 通过丝网印制的方式， 将实施例 3中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0127] The front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 3 is printed on the front surface of the crystalline silicon solar cell with the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0128] 实施例 4 Example 4
[0129] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。
[0130] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0129] A crystalline silicon solar cell front conductive silver paste, calculated according to the total weight of 100 parts, comprises the following composition ratio components: silver powder 87.5 parts; organic carrier 10.0 parts; glass powder 2.5 parts. [0130] wherein, based on the total weight of the organic vehicle, 100%, the following weight components are included:
[0131] 松油醇 25%； 乙二醇丁醚醋酸酯 25%； [0131] terpineol 25%; ethylene glycol butyl ether acetate 25%;
[0132] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0133] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0134] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 8% ; [0134] polyethylene wax 0.5%; hydrogenated castor oil derivative 8%;
[0135] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5%； Polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0136] 聚乙烯醇缩丁醛 1% ; 甲基硅油 5%； [0136] polyvinyl butyral 1%; methyl silicone oil 5%;
[0137] 甲基苯基硅油 10%。 [0137] Methylphenyl silicone oil 10%.
[0138] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0138] The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0139] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0139] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0140] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0141] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0141] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0142] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0142] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0143] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0143] A method for fabricating a front electrode of a crystalline silicon solar cell includes the following steps:
[0144] 通过丝网印制的方式， 将实施例 4中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0144] The front surface conductive silver paste of the crystalline silicon solar cell of Example 4 was printed on the front surface of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0145] 实施例 5 Example 5
[0146] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 [0146] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0147] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0147] wherein, based on the total weight of the organic vehicle, 100%, the following weight components are included:
[0148] 松油醇 25%； 乙二醇丁醚醋酸酯 25%；
[0149] 乙二醇乙醚醋酸酯 15%; 甲基纤维素 3% ; [0148] terpineol 25%; ethylene glycol butyl ether acetate 25%; [0149] ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0150] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0151] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 8% ; [0151] polyethylene wax 0.5%; hydrogenated castor oil derivative 8%;
[0152] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5%； Polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0153] 聚乙烯醇缩丁醛 1% ; 甲基硅油 5%； [0030] polyvinyl butyral 1%; methyl silicone oil 5%;
[0154] 苯基硅油 5%； 甲基氯苯基硅油 3% ; [0154] phenyl silicone oil 5%; methyl chlorophenyl silicone oil 3%;
[0155] 乙基含氢硅油 2%。 Ethyl hydrogenated silicone oil 2%.
[0156] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0156] The preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0157] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0157] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0158] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0159] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0159] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0160] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0160] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0161] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0161] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0162] 通过丝网印制的方式， 将实施例 5中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0162] The front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 5 is printed on the front surface of the crystalline silicon solar cell with the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0163] 实施例 6 Example 6
[0164] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0165] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0166] 松油醇 20%； 乙二醇丁醚醋酸酯 10% ; [0166] terpineol 20%; ethylene glycol butyl ether acetate 10%;
[0167] 乙二醇乙醚醋酸酯 10%; 甲基纤维素 3%；
[0168] 丙烯酸树脂 4%; 硬脂酰胺 2% ; Ethylene glycol ethyl ether acetate 10%; methyl cellulose 3%; [0168] acrylic resin 4%; stearic acid amide 2%;
[0169] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 8% ; [0169] Polyethylene wax 0.5%; hydrogenated castor oil derivative 8%;
[0170] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0171] 聚乙烯醇缩丁醛 1%; 甲基硅油 40%。 [0078] polyvinyl butyral 1%; methyl silicone oil 40%.
[0172] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。 [0172] The preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
[0173] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0173] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0174] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0175] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0175] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0176] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0176] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0177] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0177] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0178] 通过丝网印制的方式， 将实施例 6中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0178] The front surface conductive silver paste of the crystalline silicon solar cell of Example 6 was printed on the front side of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0179] 实施例 7 Example 7
[0180] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 [0180] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0181] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0182] 松油醇 30%； 乙二醇丁醚醋酸酯 27.5% ; [0182] terpineol 30%; ethylene glycol butyl ether acetate 27.5%;
[0183] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0184] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0185] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 15% ; [0185] polyethylene wax 0.5%; hydrogenated castor oil derivative 15%;
[0186] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5%；
[0187] 聚乙烯醇缩丁醛 1% ; 甲基硅油 0.5%。 Polyamide wax 1%; polymethylphenylsiloxane 0.5%; [0187] polyvinyl butyral 1%; methyl silicone oil 0.5%.
[0188] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。 [0188] The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c.
[0189] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0189] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0190] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末。 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
[0191] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0191] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0192] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 和所述有机载体 10.0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 [0192] 87.5 parts of silver powder, 2.5 parts of glass powder, and 10.0 parts of the organic vehicle were weighed according to the above formula weight ratio, and uniformly mixed and ground to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[0193] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0193] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0194] 通过丝网印制的方式， 将实施例 7中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0194] The front surface conductive silver paste of the crystalline silicon solar cell of Embodiment 7 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0195] 实施例 8 Example 8
[0196] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 9.7份； 玻璃粉 2.5份， 甲基硅油 0.3份。 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0196] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 9.7 parts of organic vehicle; 2.5 parts of glass powder, 0.3 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0197] 松油醇 30%； 乙二醇丁醚醋酸酯 25%； [0197] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0198] 乙二醇乙醚醋酸酯 15%; 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0199] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0200] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 18% ; [0200] Polyethylene wax 0.5%; hydrogenated castor oil derivative 18%;
[0201] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1% ; polymethylphenylsiloxane 0.5% ;
[0202] 聚乙烯醇缩丁醛 1%。 Polyvinyl butyral 1%.
[0203] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 o°c混合搅拌制作而成。
[0204] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6 o °c. [0204] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0205] Pb025%、 Te0235%、 Li 200.5% ^ Si026%、 B2036%、 Bi20314.4%、 ZnOPb025%, Te0 2 35%, Li 2 00.5% ^ Si0 2 6%, B 2 0 3 6%, Bi 2 0 3 14.4%, ZnO
6%、 W031%、 Mg06%、 A12O30.1%, 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末。 6%, W0 3 1%, Mg06%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain glass frit particles. And after crushing to obtain a particle size of 0 Glass powder powder.
[0206] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0206] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0207] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 所述有机载体 9.7 份， 甲基硅油 0.3份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面 导电银浆。 [0207] 87.5 parts of silver powder, 2.5 parts of glass powder, 9.7 parts of the organic vehicle, and 0.3 parts of methyl silicone oil were weighed according to the above formula weight ratio, and uniformly mixed and polished to obtain the front side of the crystalline silicon solar cell. Conductive silver paste.
[0208] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0208] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0209] 通过丝网印制的方式， 将实施例 8中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0209] The front surface conductive silver paste of the crystalline silicon solar cell of Example 8 was printed on the front side of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0210] 实施例 9 Example 9
[0211] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 8.5份； 玻璃粉 2.5份， 甲基硅油 1.5份。 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0211] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 8.5 parts of organic vehicle; 2.5 parts of glass powder, 1.5 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0212] 松油醇 30%； 乙二醇丁醚醋酸酯 25%； [0212] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0213] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0214] 丙烯酸树脂 4%； 硬脂酰胺 2%； [0214] acrylic resin 4%; stearic acid amide 2%;
[0215] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 18%； [0215] Polyethylene wax 0.5%; hydrogenated castor oil derivative 18%;
[0216] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5%； Polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0217] 聚乙烯醇缩丁醛 1%。 [0217] polyvinyl butyral 1%.
[0218] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0218] The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0219] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0219] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0220] Pb025%、 Te0235%、 Li 200.5% ^ Si026%、 B2036%、 Bi20314.4%、 ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末。 Pb025%, Te0 2 35%, Li 2 00.5% ^ Si0 2 6%, B 2 0 3 6%, Bi 2 0 3 14.4%, ZnO 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
[0221] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0221] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0222] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 所述有机载体 8.5 份， 甲基硅油 1.5份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面 导电银浆。 [0222] 87.5 parts of silver powder, 2.5 parts of glass powder, 8.5 parts of the organic carrier, and 1.5 parts of methyl silicone oil were weighed according to the above formula weight ratio, and uniformly mixed and polished to obtain the front side of the crystalline silicon solar cell. Conductive silver paste.
[0223] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0223] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0224] 通过丝网印制的方式， 将实施例 9中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0224] The front surface conductive silver paste of the crystalline silicon solar cell of Example 9 was printed on the front surface of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0225] 实施例 10 Example 10
[0226] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 86.5份； 有机载体 8.0份； 玻璃粉 2.5份， 甲基硅油 3份。 其中， 以 所述有机载体重量总量为 100%计， 包括以下重量组分： [0226] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated based on 100 parts by weight, comprises the following composition ratio components: 86.5 parts of silver powder; 8.0 parts of organic vehicle; 2.5 parts of glass powder, 3 parts of methyl silicone oil. Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0227] 松油醇 30%； 乙二醇丁醚醋酸酯 25%； [0227] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0228] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0229] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0230] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 18% ; [0230] Polyethylene wax 0.5%; hydrogenated castor oil derivative 18%;
[0231] 聚酰胺蜡 1%; 聚甲基苯基硅氧烷 0.5%； Polyamide wax 1%; polymethylphenylsiloxane 0.5%;
[0232] 聚乙烯醇缩丁醛 1%。 [0232] polyvinyl butyral 1%.
[0233] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0233] The preparation method of the organic vehicle is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0234] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0234] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0235] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过
破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Granules, and after Broken to obtain particle size at 0 Glass powder powder;
[0236] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0236] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0237] 按照以上所述配方重量比例称取银粉 86.5份， 玻璃粉粉 2.5份， 所述有机载体 8.0 份， 甲基硅油 3份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导 电银浆。 [0237] 86.5 parts of silver powder, 2.5 parts of glass powder powder, 8.0 parts of the organic carrier, and 3 parts of methyl silicone oil were weighed according to the above formula weight ratio, and uniformly mixed and polished to obtain the front surface of the crystalline silicon solar cell. Conductive silver paste.
[0238] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0238] A method for fabricating a front electrode of a crystalline silicon solar cell includes the following steps:
[0239] 通过丝网印制的方式， 将实施例 10中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0239] The front surface conductive silver paste of the crystalline silicon solar cell in Embodiment 10 is printed on the front surface of the crystalline silicon solar cell having the insulating film by screen printing, and the back surface of the solar cell is screen printed with the back silver and the back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0240] 实施例 11 Example 11
[0241] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 85份； 有机载体 7.5份； 玻璃粉 2.5份， 甲基硅油 5份其中， 以所 述有机载体重量总量为 100%计， 包括以下重量组分： [0241] A crystalline silicon solar cell front conductive silver paste, calculated according to the total weight of 100 parts, comprising the following composition ratio components: 85 parts of silver powder; 7.5 parts of organic carrier; 2.5 parts of glass powder, 5 parts of methyl silicone oil , based on the total weight of the organic vehicle, 100%, including the following weight components:
[0242] 松油醇 30%； 乙二醇丁醚醋酸酯 25%； Terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0243] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0244] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0245] 聚乙烯蜡 0.5% ; 氢化蓖麻油衍生物 18% ; [0245] Polyethylene wax 0.5%; hydrogenated castor oil derivative 18%;
[0246] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1% ; polymethylphenylsiloxane 0.5% ;
[0247] 聚乙烯醇缩丁醛 1%。 [0247] polyvinyl butyral 1%.
[0248] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0248] The preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0249] 以重量总量为 100%计， 所述玻璃粉为有铅玻璃粉包括以下重量组分： [0249] The glass frit is a leaded glass frit comprising the following weight components, based on 100% by weight:
[0250] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末。 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
[0251] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤：
[0252] 按照以上所述配方重量比例称取银粉 85份， 玻璃粉粉 2.5份， 所述有机载体 7.5 份， 甲基硅油 5份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导 电银浆。 [0251] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps: [0252] 85 parts of silver powder, 2.5 parts of glass powder, 7.5 parts of organic carrier, and 5 parts of methyl silicone oil were weighed according to the above formula weight ratio, and uniformly mixed and polished to obtain the front surface of the crystalline silicon solar cell. Conductive silver paste.
[0253] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0253] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0254] 通过丝网印制的方式， 将实施例 11中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0254] The front surface conductive silver paste of the crystalline silicon solar cell of Example 11 was printed on the front side of a crystalline silicon solar cell having an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back. Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0255] 对比例 1 Comparative Example 1
[0256] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 10.0份； 玻璃粉 2.5份。 [0256] A conductive silver paste on the front side of a crystalline silicon solar cell, calculated according to the total weight of 100 parts, comprising the components of the following formulation ratio: 87.5 parts of silver powder; 10.0 parts of organic vehicle; 2.5 parts of glass powder.
[0257] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： [0257] wherein, based on the total weight of the organic vehicle, 100%, the following weight components are included:
[0258] 松油醇 33%； 乙二醇丁醚醋酸酯 25%； [0258] terpineol 33%; ethylene glycol butyl ether acetate 25%;
[0259] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0260] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0261] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 15%； Polyethylene wax 0.5%; hydrogenated castor oil derivative 15%;
[0262] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5% ; Polyamide wax 1% ; polymethylphenylsiloxane 0.5% ;
[0263] 聚乙烯醇缩丁醛 1%。 [0263] polyvinyl butyral 1%.
[0264] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0264] The preparation method of the organic vehicle is as follows: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0265] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0265] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0266] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末； 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder;
[0267] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0267] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0268] 按照以上所述配方重量比例称取银粉 87.5份， 玻璃粉粉 2.5份， 所述有机载体 10. [0268] 87.5 parts of silver powder, 2.5 parts of glass powder powder, and the organic vehicle were weighed according to the weight ratio of the above formula.
0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。
[0269] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： 0 parts, after uniform mixing and grinding treatment, the conductive silver paste on the front side of the crystalline silicon solar cell is obtained. [0269] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0270] 通过丝网印制的方式， 将对比例 1中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然 后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0270] The front surface conductive silver paste of the crystalline silicon solar cell in Comparative Example 1 was printed on the front side of a crystalline silicon solar cell having an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back Aluminum was then sintered at 770 ° C to obtain the front electrode of the crystalline silicon solar cell, the screen screen secondary gate opening being 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0271] 对比例 2 Comparative Example 2
[0272] 一种晶硅太阳能电池正面导电银浆， 按总重量为 100份计算， 包括如下配方比 例的组分： 银粉 87.5份； 有机载体 9.0份； 玻璃粉 2.5份。 A conductive silver paste on the front side of a crystalline silicon solar cell, calculated on the basis of a total weight of 100 parts, comprises the components of the following formulation ratio: 87.5 parts of silver powder; 9.0 parts of organic vehicle; 2.5 parts of glass powder.
[0273] 其中， 以所述有机载体重量总量为 100%计， 包括以下重量组分： Wherein, based on 100% by weight of the total weight of the organic vehicle, the following weight components are included:
[0274] 松油醇 30%； 乙二醇丁醚醋酸酯 25% ; [0274] terpineol 30%; ethylene glycol butyl ether acetate 25%;
[0275] 乙二醇乙醚醋酸酯 15%； 甲基纤维素 3%； Ethylene glycol ethyl ether acetate 15%; methyl cellulose 3%;
[0276] 丙烯酸树脂 4%； 硬脂酰胺 2%； Acrylic resin 4%; stearic acid amide 2%;
[0277] 聚乙烯蜡 0.5%; 氢化蓖麻油衍生物 18%； Polyethylene wax 0.5%; hydrogenated castor oil derivative 18%;
[0278] 聚酰胺蜡 1% ; 聚甲基苯基硅氧烷 0.5%； Polyamide wax 1% ; polymethylphenylsiloxane 0.5%;
[0279] 聚乙烯醇缩丁醛 1%。 [0279] Polyvinyl butyral 1%.
[0280] 所述有机载体的制备方法为： 按照以上所述的比例称取有机载体原料， 在 25-6 0°C混合搅拌制作而成。 [0280] The preparation method of the organic carrier is: the organic carrier raw material is weighed according to the ratio described above, and is prepared by mixing and stirring at 25-6° C.
[0281] 所述玻璃粉为有铅玻璃粉， 以重量总量为 100%计， 包括以下重量组分： [0281] The glass frit is a leaded glass powder, and the total weight component is 100% by weight, including the following weight components:
[0282] Pb0 25% Te0 2 35%、 Li 20 0.5% ^ Si0 2 6% B 20 3 6% Bi 20 3 14.4%、 ZnOPb0 25% Te0 2 35%, Li 2 0 0.5% ^ Si0 2 6% B 2 0 3 6% Bi 2 0 3 14.4%, ZnO
6%、 W0 3 1%、 Mg0 6%、 A1 2O 3 0.1% , 按照以上比例称取玻璃粉原料组分， 进 行熔融得到玻璃粉熔液， 对所述熔液进行骤冷处理， 得到玻璃粉颗粒， 并经过 破碎获得粒径在 0
的玻璃粉粉末。 6%, W0 3 1%, Mg0 6%, A1 2 O 3 0.1%, the glass frit raw material component is weighed according to the above ratio, and melted to obtain a glass frit melt, and the molten metal is quenched to obtain a glass frit. Particles, and after crushing, the particle size is 0 Glass powder powder.
[0283] 所述晶硅太阳能电池正面导电银浆的制备方法包括以下步骤： [0283] The method for preparing the conductive silver paste on the front side of the crystalline silicon solar cell comprises the following steps:
[0284] 按照以上所述配方重量比例称取银粉 86.5份， 玻璃粉粉 2.5份， 所述有机载体 11. [0284] 86.5 parts of silver powder and 2.5 parts of glass powder powder were weighed according to the above formula weight ratio, and the organic vehicle was 11.
0份， 经过均匀混合和研磨处理， 得到所述晶硅太阳能电池正面导电银浆。 0 parts, after uniform mixing and grinding treatment, the conductive silver paste on the front side of the crystalline silicon solar cell is obtained.
[0285] 一种晶硅太阳能电池正面电极的制作方法， 包括以下步骤： [0285] A method for fabricating a front electrode of a crystalline silicon solar cell, comprising the steps of:
[0286] 通过丝网印制的方式， 将对比例 2中晶硅太阳能电池正面导电银浆印制在具有 绝缘膜的晶硅太阳能电池正面， 其太阳能电池背面丝网印制了背银和背铝， 然
后于 770°C进行烧结， 得到所述的晶硅太阳能电池正面电极， 其丝网网版副栅开 口是 23pm。 测获得的所述电池片的效率， 结果汇总在表 1中。 [0286] The front side conductive silver paste of the crystalline silicon solar cell in Comparative Example 2 was printed on the front side of the crystalline silicon solar cell with an insulating film by screen printing, and the back surface of the solar cell was screen printed with back silver and back Aluminum, of course After sintering at 770 ° C, the front side electrode of the crystalline silicon solar cell was obtained, and the screen screen secondary gate opening was 23 pm. The obtained cell sheets were measured for efficiency, and the results are summarized in Table 1.
[0287] 表 1实施例 1~11及对比例 1~2获得的晶硅太阳能电池性能测试数据统计 Table 1 Example 1~11 and Comparative Example 1~2 obtained performance statistics of crystalline silicon solar cells
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[表 1] [Table 1]
[0288] 从表 1实施例 1-7对比可知， 实施例 1-5的太阳能电池片具有转化率高， 电流高的 优点。 说明实施例 1-5使用的有机载体具有优越的印刷性能。 与实施例 1-5对比， 实施例 6的太阳能电池片转化率低、 Rs高、 电流高， 其有机载体中硅油的含量为 40% , 其银浆中硅油的含量为 4%， 说明银浆中硅油的含量过高会导致太阳能电 池片 Rs升高， 效率降低。 与实施例 1-5对比， 实施例 7的太阳能电池片转化率低， 电流低， 说明银浆中硅油的含量低于 0.05%会导致太阳能电池片电流降低， 效率 降低。 From the comparison of Examples 1 to 7 of Table 1, the solar cell sheets of Examples 1 to 5 have the advantages of high conversion rate and high current. The organic vehicle used in the description of Examples 1-5 has superior printing properties. Compared with Examples 1-5, the solar cell of Example 6 has low conversion rate, high Rs and high current, and the content of silicone oil in the organic carrier is 40%, and the content of silicone oil in the silver paste is 4%, indicating silver paste. If the content of the silicone oil is too high, the solar cell Rs will rise and the efficiency will decrease. In contrast to Examples 1-5, the solar cell sheet of Example 7 has a low conversion rate and a low current, indicating that the content of the silicone oil in the silver paste is less than 0.05%, which causes the solar cell current to decrease and the efficiency to decrease.
[0289] 实施例 8-11是在制作正面导电银浆时直接加入硅油。 从表 1可以看出， 实施例 8- 10的太阳能电池片效率高， 其加入的硅油量分别为 0.3%， 1.5% , 3.0% , 实施例 1 1的太阳能电池片效率低， Rs高， 其加入的硅油量为 5.0%。 实施例 8-11的结果显 示加入到正面导电银浆中的硅油量要适量， 太高会导致电池片 Rs升高， 效率降 低。 [0289] Examples 8-11 were the direct addition of silicone oil in the preparation of the front conductive silver paste. It can be seen from Table 1 that the solar cell sheets of Examples 8-10 have high efficiency, and the amount of silicone oil added is 0.3%, 1.5%, and 3.0%, respectively. The solar cell of Example 11 has low efficiency and high Rs. The amount of silicone oil added was 5.0%. The results of Examples 8-11 show that the amount of silicone oil added to the front conductive silver paste is moderate, and too high causes the cell sheet Rs to rise and the efficiency to decrease.
[0290] 从表 1可以看出， 和实施例 1对比， 对比例 1效率非常低， Rs高， 印刷烧结后的 副栅相貌检测发现实施例 1的副栅宽度窄， 表面比较平整， 具有较高的高宽比， 说明实施例 1的正面导电银浆印刷性能好。 印刷烧结后的副栅相貌检测发现对比 例 1的副栅宽度宽， 高低起伏比较大， 有很多断点和矮点， 说明对比例 1的正面 导电银浆印刷性能不好， 在 23—开口的网版上不能很好印刷。 图 6A是实施例 1 印刷烧结后的正面电极照片， 可以看出其副栅宽度为 29.6pm， 高度为 15.412pm ， 图 6B是对比例 1印刷烧结后的正面电极照片， 可以看出其副栅宽度为 43.4pm， 高度为 15.903pm。 可以看出实施例 1的正面电极栅线宽度比于对比例 1的栅线宽 度窄 13.8pm， 这是实施 1电流明显高于对比例 1的原因， 其中实施例 1中的有机载 体和银浆分别含有 3%和 0.3%的硅油， 对比例 1中的有机载体和银浆不含有硅油。 [0290] As can be seen from Table 1, compared with Example 1, Comparative Example 1 has very low efficiency and high Rs. The secondary gate appearance after printing and sintering has found that the width of the sub-gate of Example 1 is narrow and the surface is relatively flat. The high aspect ratio indicates that the front conductive silver paste of Example 1 has good printing performance. The appearance of the sub-gate after printing and sintering found that the width of the sub-gate of Comparative Example 1 is wide, the fluctuation of high and low is relatively large, and there are many breakpoints and short points, indicating that the printing performance of the front conductive silver paste of Comparative Example 1 is not good, in the 23-opening The screen is not printed very well. 6A is a photograph of a front electrode after printing and sintering in Example 1, and it can be seen that the width of the sub-gate is 29.6 pm and the height is 15.412 pm. FIG. 6B is a photograph of the front electrode after printing and sintering of Comparative Example 1, and it can be seen that the sub-gate thereof The width is 43.4pm and the height is 15.903pm. It can be seen that the front electrode grid line width of Example 1 is narrower than the gate line width of Comparative Example 1 by 13.8 pm, which is why the implementation 1 current is significantly higher than that of Comparative Example 1, in which the organic carrier and the silver paste of Example 1 are used. Each contained 3% and 0.3% of silicone oil, and the organic vehicle and silver paste of Comparative Example 1 did not contain silicone oil.
[0291] 从表 1可以看出， 和实施例 10对比， 对比例 2效率非常低， Rs非常高， 印刷烧结 后的副栅相貌检测发现对比例 2的副栅宽度宽为 44pm左右， 高低起伏比较大， 有 很多断点和矮点， 说明对比例 2的正面导电银浆印刷性能不好， 在 23pm开口的网
版上不能很好印刷。 和对比例 2对比， 实施例 10的副栅宽度为 3(Vm左右， 表面比 较平整， 具有较高的高宽比， 说明实施例 10的正面导电银浆印刷性能好， 其中 实施例十的正面导电银浆中含有 3%的硅油， 对比例 2中的正面导电银浆中不含有 硅油。 [0291] As can be seen from Table 1, compared with Example 10, Comparative Example 2 has very low efficiency and Rs is very high. The secondary gate appearance after printing and sintering shows that the width of the sub-gate of Comparative Example 2 is about 44 pm, and the height is low and low. Larger, there are a lot of breakpoints and short points, indicating that the positive conductive silver paste printing performance of Comparative Example 2 is not good, the net opened at 23pm The version is not printed very well. Compared with the comparative example 2, the sub-gate width of the embodiment 10 is about 3 (Vm, the surface is relatively flat, and has a high aspect ratio, indicating that the front side conductive silver paste of the embodiment 10 has good printing performance, wherein the front side of the tenth embodiment is good. The conductive silver paste contained 3% of silicone oil, and the front conductive silver paste of Comparative Example 2 did not contain silicone oil.
[0292] 实施例 1-11和对比例 1-2的结果显示加入适量的硅油到正面导电银浆中可以改善 其印刷性能， 提高其电池片转化率， 无论将硅油加入到有机载体中或者直接加 入到浆料中， 但是加入到的硅油量要适量， 太低不能改善印刷性能， 太高会导 致电池片 Rs升高， 效率降低。 [0292] The results of Examples 1-11 and Comparative Examples 1-2 show that adding an appropriate amount of silicone oil to the front conductive silver paste can improve the printing performance and increase the cell sheet conversion rate, whether the silicone oil is added to the organic vehicle or directly It is added to the slurry, but the amount of silicone oil added is moderate, too low to improve the printing performance, too high will cause the cell sheet Rs to rise and the efficiency to decrease.
[0293] 以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的 精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保 护范围之内。
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection of the invention.
Claims
[权利要求 1] 一种晶硅太阳能电池正面导电银浆， 其特征在于， 按照总重量为 100 份计， 包括如下配方的原料组分： [Claim 1] A front-side conductive silver paste for a crystalline silicon solar cell, characterized by comprising, as a total weight of 100 parts, a raw material component of the following formula:
金属粉 80.0~93.0份； Metal powder 80.0~93.0 parts;
有机载体 6.0~15.0份； Organic carrier 6.0~15.0 parts;
玻璃粉 1.0~5.0份； Glass powder 1.0~5.0 parts;
硅油 0.06~3.75份； Silicone oil 0.06~3.75 parts;
其中， 所述硅油为甲基硅油、 乙基硅油、 苯基硅油、 甲基含氢硅油、 甲基苯基硅油、 甲基氯苯基硅油、 甲基乙氧基硅油、 甲基三氟丙基硅 油、 甲基乙烯基硅油、 甲基羟基硅油、 乙基含氢硅油、 羟基含氢硅油 、 含氰硅油中的至少一种。 Wherein, the silicone oil is methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoropropyl At least one of silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, and cyanide-containing silicone oil.
[权利要求 2] 如权利要求 1所述的晶硅太阳能电池正面导电银浆， 其特征在于， 所 述玻璃粉为有铅玻璃粉、 无铅玻璃粉中的一种或者两种的混合物。 [Claim 2] The front surface conductive silver paste of a crystalline silicon solar cell according to claim 1, wherein the glass frit is one of a leaded glass frit, a lead-free glass frit, or a mixture of two.
[权利要求 3] 如权利要求 2所述的晶硅太阳能电池正面导电银浆， 其特征在于， 以 所述有铅玻璃粉以重量为 100%计， 包括以下组分：[Claim 3] The front surface conductive silver paste of the crystalline silicon solar cell according to claim 2, wherein the leaded glass frit is 100% by weight, and comprises the following components:
PbO 0.1-50%； PbO 0.1-50%;
Te0 2 5-50%； Te0 2 5-50%;
Li 20 0.5-35.0%； Li 2 0 0.5-35.0%;
Bi 20 3 1.0-35.0%； Bi 2 0 3 1.0-35.0%;
添加元素的氧化物 0~40.0%。 Add the oxide of the element 0~40.0%.
[权利要求 4] 如权利要求 2所述的晶硅太阳能电池正面导电银浆， 其特征在于， 以 所述无铅玻璃粉以重量为 100%计， 包括以下组分： [Claim 4] The front surface conductive silver paste of the crystalline silicon solar cell according to claim 2, wherein the lead-free glass powder is 100% by weight, and comprises the following components:
Te0 2 40-70%； Te0 2 40-70%;
Li 20 2-30.0%； Li 2 0 2-30.0%;
Bi 20 3 5-35.0%； Bi 2 0 3 5-35.0%;
添加元素的氧化物 0~40.0%。 Add the oxide of the element 0~40.0%.
[权利要求 5] 如权利要求 3或 4任一项所述的晶硅太阳能电池正面导电银浆， 其特征 在于， 所述添加元素的氧化物中添加元素为钛、 招、 银、 铬、 钪、 铜
、 铌、 钒、 钠、 钽、 锶、 溴、 钴、 铪、 镧、 钇、 镱、 铁、 钡、 锰、 钨 、 镍、 锡、 砷、 锆、 钾、 磷、 铟、 镓、 锗， 硅、 硼、 锌、 钨、 镁中的 至少一种。 [Claim 5] The front surface conductive silver paste of a crystalline silicon solar cell according to any one of claims 3 or 4, wherein the additive element in the oxide of the additive element is titanium, smear, silver, chrome, or Copper , bismuth, vanadium, sodium, antimony, antimony, bromine, cobalt, antimony, antimony, bismuth, antimony, iron, antimony, manganese, tungsten, nickel, tin, arsenic, zirconium, potassium, phosphorus, indium, gallium, germanium, silicon At least one of boron, zinc, tungsten, and magnesium.
[权利要求 6] 如权利要求 1所述的晶硅太阳能电池正面导电银浆， 其特征在于， 所 述金属粉为银、 金、 铂、 铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰、 钯 、 铑中的至少一种。 [Claim 6] The front side conductive silver paste of the crystalline silicon solar cell according to claim 1, wherein the metal powder is silver, gold, platinum, copper, iron, nickel, zinc, titanium, cobalt, chromium, At least one of stroke, manganese, palladium, and strontium.
[权利要求 7] 如权利要求 1所述的晶硅太阳能电池正面导电银浆， 其特征在于， 所 述金属粉为银包覆的铜、 铁、 镍、 锌、 钛、 钴、 铬、 招、 锰中的至少 一种， 其中， 银包覆层的厚度为 10~50nm。 [Claim 7] The front surface conductive silver paste of the crystalline silicon solar cell according to claim 1, wherein the metal powder is silver-coated copper, iron, nickel, zinc, titanium, cobalt, chromium, and At least one of manganese, wherein the silver coating layer has a thickness of 10 to 50 nm.
[权利要求 8] 如权利要求 1所述的晶硅太阳能电池正面导电浆料， 其特征在于， 所 述金属粉为非银包覆的金属粉和银包覆的金属粉的混合体， 其中， 所 述非银包覆的金属粉与银包覆的金属粉的重量比为 5/95~95/5， 所述 非银包覆的金属粉为银、 金、 销、 铜、 铁、 辕、 铸、 钦、 钻、 絡、 招 、 锰、 ffi、 铑中的至少一种； 所述银包覆的金属粉为铜、 铁、 镍、 锌 、 钛、 钴、 铬、 招、 锰中的至少一种， 所述银包覆层的厚度为 10~50n m。 [Claim 8] The front side conductive paste of the crystalline silicon solar cell according to claim 1, wherein the metal powder is a mixture of a non-silver coated metal powder and a silver coated metal powder, wherein The weight ratio of the non-silver-coated metal powder to the silver-coated metal powder is 5/95 to 95/5, and the non-silver-coated metal powder is silver, gold, pin, copper, iron, bismuth, At least one of casting, chin, diamond, lanthanum, lanthanum, manganese, ffi, lanthanum; the silver-coated metal powder is at least one of copper, iron, nickel, zinc, titanium, cobalt, chromium, smear, manganese In one case, the silver coating layer has a thickness of 10 to 50 nm.
[权利要求 9] 如权利要求 1~8任一项所述的晶硅太阳能电池正面导电浆料的制备方 法， 其特征在于， 至少包括以下步骤： [Claim 9] The method for preparing a front side conductive paste of a crystalline silicon solar cell according to any one of claims 1 to 8, characterized in that it comprises at least the following steps:
步骤 S01.将玻璃粉原料组分进行熔融得到玻璃粉熔液， 对所述熔液进 行骤冷处理， 得到玻璃粉颗粒， 并经过破碎获得粒径在 0.1~5.(Vm的 玻璃粉粉末； Step S01. Melting the glass frit raw material component to obtain a glass frit melt, and quenching the molten liquid to obtain glass frit particles, and crushing to obtain a glass powder powder having a particle diameter of 0.1 to 5. (Vm;
步骤 S02.将有机载体原料置于 40~100°C环境中进行混合处理， 得到有 机载体； Step S02. The organic carrier raw material is placed in an environment of 40 to 100 ° C for mixing treatment to obtain an organic carrier;
步骤 S03.将金属粉与步骤 S01得到的玻璃粉粉末、 步骤 S02得到的有机 载体、 硅油进行混料处理， 获得晶硅太阳能电池正面导电银浆。 Step S03. The metal powder is mixed with the glass powder powder obtained in the step S01, the organic vehicle obtained in the step S02, and the silicone oil to obtain a conductive silver paste on the front side of the crystalline silicon solar cell.
[权利要求 10] 如权利要求 11所述的晶硅太阳能电池正面导电浆料的制备方法， 其特 征在于， 所述骤冷处理为水冷处理或者冷空气处理。 [Claim 10] The method for producing a front side conductive paste of a crystalline silicon solar cell according to claim 11, wherein the quenching treatment is water cooling treatment or cold air treatment.
[权利要求 11] 一种晶硅太阳能电池正面电极的制作方法， 其特征在于， 至少包括以
下步骤： [Claim 11] A method for fabricating a front electrode of a crystalline silicon solar cell, characterized in that it comprises at least Next steps:
提供表面叠设有绝缘膜的晶体硅半导体元件； Providing a crystalline silicon semiconductor component having an insulating film on its surface;
通过印制的方式将如权利要求 1~10任一项所述的晶硅太阳能电池正面 导电浆料印制于所述绝缘膜表面， 依次进行干燥、 烧结、 冷却处理， 得到晶硅太阳能电池正面电极。 The surface conductive paste of the crystalline silicon solar cell according to any one of claims 1 to 10 is printed on the surface of the insulating film by printing, and sequentially dried, sintered, and cooled to obtain a front surface of the crystalline silicon solar cell. electrode.
[权利要求 12] 如权利要求 11所述的晶硅太阳能电池正面电极的制作方法， 其特征在 于， 所述烧结温度为 700~820°c; 和 /或所述干燥温度为 80~400°C。 [Claim 12] The method for fabricating a front surface electrode of a crystalline silicon solar cell according to claim 11, wherein the sintering temperature is 700 to 820 ° C; and/or the drying temperature is 80 to 400 ° C .
[权利要求 13] 如权利要求 11所述的晶硅太阳能电池正面电极的制作方法， 其特征在 于， 所述绝缘膜为氮化硅膜、 氧化钛膜、 氧化铝膜、 氧化硅膜中的至 少一种。 The method of fabricating a front surface electrode of a crystalline silicon solar cell according to claim 11, wherein the insulating film is at least one of a silicon nitride film, a titanium oxide film, an aluminum oxide film, and a silicon oxide film. One.
[权利要求 14] 一种晶硅太阳能电池， 其特征在于， 所述晶硅太阳能电池采用如权利 要求 11~13任一项所述的晶硅太阳能电池正面电极的制作方法制作的 晶硅太阳能电池正面电极。
[Claim 14] A crystalline silicon solar cell, wherein the crystalline silicon solar cell is a crystalline silicon solar cell produced by the method for fabricating a front surface electrode of a crystalline silicon solar cell according to any one of claims 11 to Front electrode.
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