CN114944326B - Boron slurry for HBC battery and preparation method thereof - Google Patents
Boron slurry for HBC battery and preparation method thereof Download PDFInfo
- Publication number
- CN114944326B CN114944326B CN202210538636.6A CN202210538636A CN114944326B CN 114944326 B CN114944326 B CN 114944326B CN 202210538636 A CN202210538636 A CN 202210538636A CN 114944326 B CN114944326 B CN 114944326B
- Authority
- CN
- China
- Prior art keywords
- boron
- powder
- hbc
- slurry
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 239000002002 slurry Substances 0.000 title claims abstract description 59
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 86
- 239000003054 catalyst Substances 0.000 claims abstract description 28
- 230000008878 coupling Effects 0.000 claims abstract description 27
- 238000010168 coupling process Methods 0.000 claims abstract description 27
- 238000005859 coupling reaction Methods 0.000 claims abstract description 27
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 239000003960 organic solvent Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 15
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 12
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 12
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 12
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 12
- 239000001856 Ethyl cellulose Substances 0.000 claims description 12
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 12
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000005642 Oleic acid Substances 0.000 claims description 12
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 12
- 239000004359 castor oil Substances 0.000 claims description 12
- 235000019438 castor oil Nutrition 0.000 claims description 12
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 12
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 12
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 12
- 229920001249 ethyl cellulose Polymers 0.000 claims description 12
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 12
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 12
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- -1 sodium tetraphenylborate Chemical compound 0.000 claims description 12
- 229940116411 terpineol Drugs 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007650 screen-printing Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000002161 passivation Methods 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000000608 laser ablation Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- CFOAUMXQOCBWNJ-UHFFFAOYSA-N [B].[Si] Chemical compound [B].[Si] CFOAUMXQOCBWNJ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000009974 thixotropic effect Effects 0.000 abstract description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000231 atomic layer deposition Methods 0.000 description 6
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 2
- 239000007818 Grignard reagent Substances 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- STQNWRXPYOGGCI-UHFFFAOYSA-I [Cl-].[Mg+2].[B+3].[Cl-].[Cl-].[Cl-].[Cl-] Chemical compound [Cl-].[Mg+2].[B+3].[Cl-].[Cl-].[Cl-].[Cl-] STQNWRXPYOGGCI-UHFFFAOYSA-I 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 150000004795 grignard reagents Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/22—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities
- H01L21/225—Diffusion of impurity materials, e.g. doping materials, electrode materials, into or out of a semiconductor body, or between semiconductor regions; Interactions between two or more impurities; Redistribution of impurities using diffusion into or out of a solid from or into a solid phase, e.g. a doped oxide layer
- H01L21/2251—Diffusion into or out of group IV semiconductors
- H01L21/2252—Diffusion into or out of group IV semiconductors using predeposition of impurities into the semiconductor surface, e.g. from a gaseous phase
-
- 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
- H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic System
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a boron slurry for an HBC battery and a preparation method thereof, wherein the boron slurry has proper viscosity and good printability through the synergistic effect among boron powder, silicon powder, an organic carrier and a coupling catalyst, so that the leveling property and thixotropic property of the boron slurry are improved; meanwhile, by reasonably adding the coupling catalyst, the formation of the printed boron-silicon layer can be promoted, the mutual diffusion effect of boron element and the amorphous silicon layer (or the polycrystalline silicon layer) on the back of the HBC battery is enhanced, so that a better doped layer is obtained, and the conversion efficiency of the HBC solar battery is further improved.
Description
Technical Field
The invention relates to the technical field of solar cells, in particular to boron slurry for an HBC (heterojunction bipolar transistor) cell, and further relates to a method for preparing the boron slurry.
Background
In view of the importance of clean utilization and supply safety of energy, commercial development and utilization of solar energy are important development modes, which are important development directions of photovoltaic enterprises, and cost reduction and efficiency improvement are also perpetual subjects of the photovoltaic enterprises. The HBC battery is used as a new process technology of the crystalline silicon solar battery, has high conversion efficiency and great development potential. However, the existing HBC battery manufacturing technology also has the problems of complicated process route, higher equipment investment and the like.
In view of the problems of the manufacturing process of the HBC battery, in the prior art, the boron slurry is generally printed on the p+ region pattern of the HBC battery by adopting a screen printing technology, and boron diffusion is carried out by a high-temperature diffusion or laser doping mode, masking equipment, film opening equipment, mask removing equipment and the like are not needed in the subsequent preparation, and the whole set of HBC battery manufacturing process equipment is relatively simple, does not generate toxic substances and is beneficial to environmental protection; however, the screen printing technology has high performance requirements on boron slurry for the HBC battery, proper viscosity, good printability and controllable doping concentration and depth are required, while the traditional doping slurry has unsatisfactory leveling property and thixotropic property, and cannot meet the requirements on doping concentration and depth.
Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide boron slurry for an HBC battery and a preparation method thereof, which can effectively solve the technical problems.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
the boron slurry for the HBC battery comprises the following raw materials in parts by weight:
preferably, the boron powder consists of boron powder A, boron powder B and boron powder C with different particle sizes; the weight ratio of the boron powder A to the boron powder B to the boron powder C is (25+/-5): (60±5): (20.+ -. 5).
Preferably, the particle size of the boron powder A is 30-40 nm; the particle size of the boron powder B is 80-90 nm; the grain diameter of the boron powder C is 0.2-0.3 mu m.
Preferably, the silicon powder is composed of silicon powder A and silicon powder B with different particle sizes, and the weight ratio of the silicon powder A to the silicon powder B is (60+/-10): (40.+ -. 10).
Preferably, the grain diameter of the silicon powder A is 0.1-0.2 mu m; the grain diameter of the silicon powder B is 0.3-0.4 mu m.
Preferably, the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid is (91±2): (5±1): (4±1): (1±0.5): 0.3.
preferably, the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the terpineol to the butyl carbitol to the cyclohexanol is (2-6): 1-5): 1-3.
Preferably, the coupling catalyst is a mixture of sodium tetraphenylborate and tetra-n-butyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetra-n-butyl titanate is (5-6): 1-2.
Based on the boron slurry for the HBC battery, the invention also provides a method for preparing the boron slurry, which comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 2-4 hours by using a high-speed dispersing machine, and grinding for 7-10 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 1-10 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Meanwhile, the invention also provides an HBC battery prepared from the boron slurry for the HBC battery, and the preparation method of the HBC battery comprises the following steps:
(1) Cleaning and double-sided polishing are carried out on the crystalline silicon substrate;
(2) Depositing a tunneling oxide layer and an intrinsic amorphous layer on the back surface of the crystalline silicon substrate;
(3) Texturing the front surface of the crystalline silicon substrate;
(4) Annealing the intrinsic amorphous silicon layer to form a polycrystalline state;
(5) Printing boron slurry to a p+ region on the back surface of a crystalline silicon substrate in a screen printing mode, drying, and carrying out laser doping or high-temperature diffusion doping; specifically, the drying temperature is 300 ℃, and the drying time is 1-5 min;
(6) Forming an n+ doped layer on the back surface of the crystalline silicon substrate, and isolating a p+ region from the n+ doped region by adopting a laser ablation mode;
(7) Depositing an alumina film layer on the front surface and the back surface of the crystalline silicon substrate to prepare an alumina passivation layer; specifically, an aluminum oxide film layer is deposited on the front side and the back side of the crystalline silicon substrate in an ALD mode, and the preferable film thickness is 5-20 nm; the alumina passivation layer is prepared by adopting an ALD (atomic layer deposition) mode, can be compatible with the existing equipment of a production line, and has compact deposited alumina film and good passivation effect;
(8) Preparing a silicon nitride antireflection film on the front surface and the back surface of the crystalline silicon substrate;
(9) And (5) screen printing an electrode on the back surface of the crystalline silicon cell, and sintering to obtain the HBC solar cell.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the boron paste, through the synergistic effect among the boron powder, the silicon powder, the organic carrier and the coupling catalyst, the boron paste has proper viscosity and good printability, and the leveling property and the thixotropy of the boron paste are improved; meanwhile, by reasonably adding the coupling catalyst, the formation of the printed boron-silicon layer can be promoted, the mutual diffusion effect of boron element and the amorphous silicon layer (or the polycrystalline silicon layer) on the back of the HBC battery is enhanced, so that a better doped layer is obtained, and the conversion efficiency of the HBC solar battery is further improved.
2. The boron slurry prepared by the invention can realize different concentration doping of the silicon wafer by adjusting the mass ratio of the boron powder to the silicon powder, and is simple to debug.
3. The boron slurry disclosed by the invention does not relate to the use of toxic and harmful chemical substances in the production process, is convenient to store, can be stored for a long time, is safe and environment-friendly, has high process stability and low cost, and is favorable for industrialized popularization.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
The invention provides boron slurry for an HBC battery, wherein raw materials for preparing the boron slurry comprise the following components in parts by weight: 1-7 parts of boron powder; 5-17 parts of silicon powder; 60-90 parts of organic carrier; 0 to 2 parts of coupling catalyst.
Wherein the boron powder consists of boron powder A, boron powder B and boron powder C with different particle sizes; the weight ratio of the boron powder A to the boron powder B to the boron powder C is (25+/-5): (60±5): (20.+ -. 5); the particle size of the boron powder A is 30-40 nm; the particle size of the boron powder B is 80-90 nm; the grain diameter of the boron powder C is 0.2-0.3 mu m; specifically, the boron powder A, the boron powder B and the boron powder C are all formed by mixing spherical boron powder and spherical boron powder, and the purity of the boron powder reaches more than 99.99999 percent.
The silicon powder consists of silicon powder A and silicon powder B with different particle sizes, and the weight ratio of the silicon powder A to the silicon powder B is (60+/-10): (40.+ -. 10); wherein the grain diameter of the silicon powder A is 0.1-0.2 mu m; the grain diameter of the silicon powder B is 0.3-0.4 mu m, and the silicon powder A and the silicon powder B are both spherical and spheroidic silicon powder.
The organic carrier is a mixture of an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, wherein the weight ratio of the organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid is (91+/-2): (5±1): (4±1): (1±0.5): 0.3.
specifically, the organic solvent is a mixture of terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the terpineol, butyl carbitol and cyclohexanol is (2-6): 1-5): 1-3.
The coupling catalyst is a mixture of sodium tetraphenylborate and tetra-n-butyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetra-n-butyl titanate is (5-6): 1-2.
Specifically, the preparation method of the sodium tetraphenyl borate comprises the following steps: firstly, magnesium and chlorobenzene are used as reactants, anhydrous toluene and tetrahydrofuran are used as reaction media, iodine is used as a catalyst, and a Grignard reagent is prepared; then toluene and boron trifluoride diethyl etherate solution are added into the Grignard reagent to react, and tetraphenyl boron magnesium chloride is synthesized; finally, the tetraphenyl boron magnesium chloride is hydrolyzed by sodium carbonate to prepare the sodium tetraphenyl borate.
The preparation method of the tetra-n-butyl titanate comprises the following steps: firstly, taking heptane, n-butanol, titanium tetrachloride and liquid ammonia in a certain proportion as reactants to obtain tetra-n-butyl titanate with a mixture of heptane, alcohol and ammonium chloride, separating by a centrifuge to obtain tetra-n-butyl titanate with a mixture of heptane and alcohol, and finally evaporating off the heptane and excessive alcohol by distillation to obtain the tetra-n-butyl titanate.
Based on the boron slurry for the HBC battery, the invention also provides a method for preparing the boron slurry, which comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 2-4 hours by using a high-speed dispersing machine, and grinding for 7-10 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 1-10 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Meanwhile, the invention also provides an HBC battery prepared from the boron slurry for the HBC battery, and the preparation method of the HBC battery comprises the following steps:
(1) Cleaning and double-sided polishing are carried out on the crystalline silicon substrate;
(2) Depositing a tunneling oxide layer and an intrinsic amorphous layer on the back surface of the crystalline silicon substrate;
(3) Texturing the front surface of the crystalline silicon substrate;
(4) Annealing the intrinsic amorphous silicon layer to form a polycrystalline state;
(5) Printing boron slurry to a p+ region on the back surface of a crystalline silicon substrate in a screen printing mode, drying, and carrying out laser doping or high-temperature diffusion doping; specifically, the drying temperature is 300 ℃, and the drying time is 1-5 min;
(6) Forming an n+ doped layer on the back surface of the crystalline silicon substrate, and isolating a p+ region from the n+ doped region by adopting a laser ablation mode;
(7) Depositing an alumina film layer on the front surface and the back surface of the crystalline silicon substrate to prepare an alumina passivation layer; specifically, an aluminum oxide film layer is deposited on the front side and the back side of the crystalline silicon substrate in an ALD mode, and the preferable film thickness is 5-20 nm; the alumina passivation layer is prepared by adopting an ALD (atomic layer deposition) mode, can be compatible with the existing equipment of a production line, and has compact deposited alumina film and good passivation effect;
(8) Preparing a silicon nitride antireflection film on the front surface and the back surface of the crystalline silicon substrate;
(9) And (5) screen printing an electrode on the back surface of the crystalline silicon cell, and sintering to obtain the HBC solar cell.
Example 1
A boron slurry formula for an HBC battery comprises:
3 parts of boron powder, 11 parts of silicon powder, 87 parts of organic carrier and 0.5 part of coupling catalyst.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of each component is 90:5.5:4.5:0.5:0.3;
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 5:3:2;
the boron powder is formed by mixing boron powder A, boron powder B and boron powder C, wherein the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 25:55:20, a step of;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 60:40, a step of performing a;
wherein the coupling catalyst is a mixture of sodium tetraphenylborate and tetrabutyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetrabutyl titanate is 5.5:1.5;
the preparation method of the boron slurry for the HBC battery comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 7 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Example 2
A boron slurry formula for an HBC battery comprises:
6 parts of boron powder, 15 parts of silicon powder, 78 parts of organic carrier and 1 part of coupling catalyst.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the components is 89:4:4:1:0.3,
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 6:3:1;
wherein the boron powder is a mixture of boron powder A, boron powder B and boron powder C, the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 20:55:25, a step of selecting a specific type of material;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 55:45;
wherein the coupling catalyst is a mixture of sodium tetraphenylborate and tetrabutyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetrabutyl titanate is 6:1;
the preparation method of the boron slurry for the HBC battery comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 9 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Example 3
A boron slurry formula for an HBC battery comprises:
1 part of boron powder, 5 parts of silicon powder, 90 parts of organic carrier and 2 parts of coupling catalyst.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the components is 89:6:4.5:0.5:0.3,
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 4:3:3;
wherein the boron powder is a mixture of boron powder A, boron powder B and boron powder C, the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 30:55:15;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 65:35;
wherein the coupling catalyst is a mixture of sodium tetraphenylborate and tetrabutyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetrabutyl titanate is 5:2;
the preparation method comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 6 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Comparative example 1
A boron slurry formula for an HBC battery comprises:
6 parts of boron powder, 15 parts of silicon powder and 79 parts of organic carrier.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the components is 89:4:4:1:0.3,
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 6:3:1;
wherein the boron powder is a mixture of boron powder A, boron powder B and boron powder C, the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 20:55:25, a step of selecting a specific type of material;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 55:45;
the preparation method of the boron slurry for the HBC battery comprises the following steps: firstly, uniformly mixing boron powder, silicon powder and an organic carrier according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 9 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Comparative example 2
A boron slurry formula for an HBC battery comprises:
6 parts of boron powder, 15 parts of silicon powder, 78 parts of organic carrier and 1 part of coupling catalyst.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the components is 89:4:4:1:0.3,
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 6:3:1;
wherein the boron powder is a mixture of boron powder A, boron powder B and boron powder C, the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 20:55:25, a step of selecting a specific type of material;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 55:45;
wherein the coupling catalyst is sodium tetraphenyl borate;
the preparation method of the boron slurry for the HBC battery comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 9 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
Comparative example 3
A boron slurry formula for an HBC battery comprises:
6 parts of boron powder, 15 parts of silicon powder, 78 parts of organic carrier and 1 part of coupling catalyst.
Wherein the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the components is 89:4:4:1:0.3,
wherein the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the components is 6:3:1;
wherein the boron powder is a mixture of boron powder A, boron powder B and boron powder C, the diameter of the boron powder A is 30-40 nm, the diameter of the boron powder B is 80-90 nm, the diameter of the boron powder C is 0.2-0.3 mu m, and the weight ratio of the boron powder A to the boron powder B to the boron powder C is 20:55:25, a step of selecting a specific type of material;
the silicon powder is formed by mixing spherical and spheroid silicon powder A and silicon powder B, wherein the diameter of the silicon powder A is 0.1-0.2 mu m, the diameter of the silicon powder B is 0.3-0.4 mu m, and the weight ratio of the silicon powder A to the silicon powder B is 55:45;
wherein the coupling catalyst is tetra-n-butyl titanate;
the preparation method of the boron slurry for the HBC battery comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 3 hours by using a high-speed dispersing machine, and grinding for 8 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 9 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
The boron slurries of examples 1-3 and comparative examples 1-3 were applied to the HBC cell method provided in this scheme for verification, the results of which are shown in table 1, wherein Voc represents the open circuit voltage, jsc represents the short circuit current density, FF represents the fill factor, and Eff represents the cell conversion efficiency.
Table 1 results of HBC solar cell electrical performance parameter testing for examples and comparative examples
| Process for producing a solid-state image sensor | Voc(mV) | Jsc(mA/cm 2 ) | FF(％) | Eff(％) |
| Example 1 | 734.2 | 41.682 | 83.34 | 25.506 |
| Example 2 | 731.8 | 41.688 | 83.41 | 25.447 |
| Example 3 | 735.2 | 41.685 | 83.29 | 25.526 |
| Comparative example 1 | 733 | 41.672 | 83.03 | 25.265 |
| Comparative example 2 | 706 | 34.152 | 75.62 | 20.159 |
| Comparative example 3 | 703 | 35.261 | 74.12 | 21.481 |
As can be seen from table 1, the preparation of HBC solar cells using the boron paste of the present invention can significantly improve the cell efficiency of HBC solar cells.
Claims (5)
1. The boron slurry for the HBC battery is characterized in that: the raw materials for preparing the boron slurry comprise the following components in parts by weight:
1-7 parts of boron powder;
5-17 parts of silicon powder;
60-90 parts of organic carrier;
0-2 parts of coupling catalyst;
wherein: the boron powder consists of boron powder A, boron powder B and boron powder C with different particle sizes; the weight ratio of the boron powder A to the boron powder B to the boron powder C is (25+/-5): (60±5): (20.+ -. 5); the particle size of the boron powder A is 30-40 nm; the particle size of the boron powder B is 80-90 nm; the grain diameter of the boron powder C is 0.2-0.3 mu m; the silicon powder consists of silicon powder A and silicon powder B with different particle sizes, and the weight ratio of the silicon powder A to the silicon powder B is (60+/-10): (40.+ -. 10); the grain diameter of the silicon powder A is 0.1-0.2 mu m; the grain diameter of the silicon powder B is 0.3-0.4 mu m;
the coupling catalyst is a mixture of sodium tetraphenylborate and tetra-n-butyl titanate, and the weight ratio of the sodium tetraphenylborate to the tetra-n-butyl titanate is (5-6): 1-2.
2. The boron paste for HBC cells according to claim 1, wherein: the organic carrier comprises an organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid, and the weight ratio of the organic solvent, ethylcellulose, hydrogenated castor oil, phosphotriester and oleic acid is (91+/-2): (5±1): (4±1): (1±0.5): 0.3.
3. the boron paste for HBC cells according to claim 2, wherein: the organic solvent comprises terpineol, butyl carbitol and cyclohexanol, and the weight ratio of the terpineol to the butyl carbitol to the cyclohexanol is (2-6): 1-5): 1-3.
4. A method of preparing the boron slurry for HBC cells according to any one of claims 1 to 3, characterized in that: the method comprises the following steps: firstly, uniformly mixing boron powder, silicon powder, an organic carrier and a coupling catalyst according to a proportion to obtain a mixed material; then stirring the mixed material for 2-4 hours by using a high-speed dispersing machine, and grinding for 7-10 times by using a three-roller grinder after dispersing to ensure that the fineness of the slurry reaches 1-10 mu m; and finally, filtering to obtain the boron slurry for the HBC battery.
5. An HBC cell prepared using the boron slurry for an HBC cell according to any one of claims 1 to 3, wherein: the preparation method of the HBC battery comprises the following steps:
(1) Cleaning and double-sided polishing are carried out on the crystalline silicon substrate;
(2) Depositing a tunneling oxide layer and an intrinsic amorphous layer on the back surface of the crystalline silicon substrate;
(3) Texturing the front surface of the crystalline silicon substrate;
(4) Annealing the intrinsic amorphous silicon layer to form a polycrystalline state;
(5) Printing boron slurry to a p+ region on the back surface of a crystalline silicon substrate in a screen printing mode, drying, and carrying out laser doping or high-temperature diffusion doping;
(6) Forming an n+ doped layer on the back surface of the crystalline silicon substrate, and isolating a p+ region from the n+ doped region by adopting a laser ablation mode;
(7) Depositing an alumina film layer on the front surface and the back surface of the crystalline silicon substrate to prepare an alumina passivation layer;
(8) Preparing a silicon nitride antireflection film on the front surface and the back surface of the crystalline silicon substrate;
(9) And (5) screen printing an electrode on the back surface of the crystalline silicon cell, and sintering to obtain the HBC solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210538636.6A CN114944326B (en) | 2022-05-18 | 2022-05-18 | Boron slurry for HBC battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210538636.6A CN114944326B (en) | 2022-05-18 | 2022-05-18 | Boron slurry for HBC battery and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114944326A CN114944326A (en) | 2022-08-26 |
| CN114944326B true CN114944326B (en) | 2024-01-16 |
Family
ID=82907563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210538636.6A Active CN114944326B (en) | 2022-05-18 | 2022-05-18 | Boron slurry for HBC battery and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114944326B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115513314B (en) * | 2022-10-24 | 2024-04-12 | 普乐新能源科技(泰兴)有限公司 | Phosphorus slurry for HBC solar cell and preparation method thereof |
| CN117603246A (en) * | 2024-01-18 | 2024-02-27 | 山东海化集团有限公司 | Preparation method of sodium tetraphenyl borate and application of sodium tetraphenyl borate in sodium electricity |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217493A (en) * | 2006-02-15 | 2007-08-30 | Denki Kagaku Kogyo Kk | Boron nitride slurry and mold-releasing agent |
| KR20110126452A (en) * | 2010-05-17 | 2011-11-23 | 에이엠씨주식회사 | Conductive silver paste for solar cell electrode and the method thereof |
| CN103123812A (en) * | 2013-02-20 | 2013-05-29 | 江苏晨电太阳能光电科技有限公司 | Crystalline silicon solar cell aluminum paste |
| CN104756263A (en) * | 2012-09-04 | 2015-07-01 | E.I.内穆尔杜邦公司 | A method for manufacturing a photovoltaic cell with a selectively doped rear side |
| JP2015191971A (en) * | 2014-03-27 | 2015-11-02 | 株式会社ノリタケカンパニーリミテド | Aluminum paste for fire-through and solar cell element |
| CN109493991A (en) * | 2018-12-28 | 2019-03-19 | 广州市儒兴科技开发有限公司 | A kind of PERC battery is starched with boron |
| CN110504332A (en) * | 2019-09-04 | 2019-11-26 | 韩华新能源（启东）有限公司 | A kind of preparation method of PERC battery and two-sided selective emitter PERC battery |
| CN114242801A (en) * | 2021-12-07 | 2022-03-25 | 普乐新能源科技(徐州)有限公司 | HBC solar cell with back passivation contact structure and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8076570B2 (en) * | 2006-03-20 | 2011-12-13 | Ferro Corporation | Aluminum-boron solar cell contacts |
-
2022
- 2022-05-18 CN CN202210538636.6A patent/CN114944326B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217493A (en) * | 2006-02-15 | 2007-08-30 | Denki Kagaku Kogyo Kk | Boron nitride slurry and mold-releasing agent |
| KR20110126452A (en) * | 2010-05-17 | 2011-11-23 | 에이엠씨주식회사 | Conductive silver paste for solar cell electrode and the method thereof |
| CN104756263A (en) * | 2012-09-04 | 2015-07-01 | E.I.内穆尔杜邦公司 | A method for manufacturing a photovoltaic cell with a selectively doped rear side |
| CN103123812A (en) * | 2013-02-20 | 2013-05-29 | 江苏晨电太阳能光电科技有限公司 | Crystalline silicon solar cell aluminum paste |
| JP2015191971A (en) * | 2014-03-27 | 2015-11-02 | 株式会社ノリタケカンパニーリミテド | Aluminum paste for fire-through and solar cell element |
| CN109493991A (en) * | 2018-12-28 | 2019-03-19 | 广州市儒兴科技开发有限公司 | A kind of PERC battery is starched with boron |
| CN110504332A (en) * | 2019-09-04 | 2019-11-26 | 韩华新能源（启东）有限公司 | A kind of preparation method of PERC battery and two-sided selective emitter PERC battery |
| CN114242801A (en) * | 2021-12-07 | 2022-03-25 | 普乐新能源科技(徐州)有限公司 | HBC solar cell with back passivation contact structure and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114944326A (en) | 2022-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114944326B (en) | Boron slurry for HBC battery and preparation method thereof | |
| CN101621082B (en) | Aluminum conductive paste for silicon solar cell back surface field and preparation method thereof | |
| CN106449979B (en) | Thermostabilization perovskite CsPbI is prepared by double amino organic matters3Method | |
| CN102324267A (en) | High-photoelectric-conversion-efficiency crystalline silicon solar battery aluminum paste and preparation method thereof | |
| KR101497038B1 (en) | Ag paste composition for forming electrode and Preparation method thereof | |
| CN102956283A (en) | Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof | |
| CN112071468B (en) | Conductive slurry for HJT battery and preparation method thereof | |
| CN101814555B (en) | Method for improving efficiency of solar cell | |
| TW201340343A (en) | Passivation layer for solar cells and method for manufacturing the same | |
| CN105118578A (en) | Preparation process for lead-free front electrode silver paste of solar cell | |
| CN114409262B (en) | Conductive glass powder and preparation method thereof, conductive slurry and preparation method and application thereof | |
| CN114822910A (en) | Conductive silver-aluminum paste, preparation method, electrode and battery | |
| CN104668572A (en) | Silver powder and silver paste for back electrode of solar cell and solar cell | |
| CN110061074A (en) | A kind of PERC solar battery | |
| CN1857833A (en) | Preparing process of silver powder for printing slurry of electrode in solar cell | |
| CN110120274B (en) | Back electrode slurry of all-aluminum back surface field and preparation method and application thereof | |
| CN106653147A (en) | Lead-free positive silver paste applied to silicon solar cell and preparation method thereof | |
| CN116313214B (en) | Conductive silver-aluminum paste, preparation method, electrode and N-type Topcon battery | |
| CN113471422A (en) | Method for preparing gallium-doped nano silicon particles by using silicon waste | |
| CN105118873A (en) | Front electrode silver paste of crystalline silicon solar battery | |
| CN103745765A (en) | High-adhesion low-warpage crystalline silicon cell back side aluminum slurry | |
| CN115910425A (en) | Front-side silver-aluminum paste for N-type TOPCon solar cell and preparation method thereof | |
| CN115513314B (en) | Phosphorus slurry for HBC solar cell and preparation method thereof | |
| CN105118545A (en) | Front electrode silver paste of lead-free solar cell | |
| CN111403079B (en) | Conductive paste for back electrode of PERC crystalline silicon solar cell and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230117 Address after: 518000 Room 103, Building 3, Shekou Lanyuan, Nanshan District, Shenzhen, Guangdong Province Applicant after: Ou Wenkai Address before: 221000 room 1222, office building, No. 11, Zhujiang East Road, high tech Industrial Development Zone, Xuzhou, Jiangsu Province Applicant before: Pule new energy technology (Xuzhou) Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230403 Address after: No. 168, West Side of Kechuang Road, High-tech Industrial Development Zone, Taixing City, Taizhou City, Jiangsu Province, 225400 Applicant after: Pule New Energy Technology (Taixing) Co.,Ltd. Address before: 518000 Room 103, Building 3, Shekou Lanyuan, Nanshan District, Shenzhen, Guangdong Province Applicant before: Ou Wenkai |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |