CN113451441A - Solar cell screen printing and laser sintering integrated equipment - Google Patents
Solar cell screen printing and laser sintering integrated equipment Download PDFInfo
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- CN113451441A CN113451441A CN202110682559.7A CN202110682559A CN113451441A CN 113451441 A CN113451441 A CN 113451441A CN 202110682559 A CN202110682559 A CN 202110682559A CN 113451441 A CN113451441 A CN 113451441A
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- 238000000149 argon plasma sintering Methods 0.000 title claims abstract description 40
- 238000007650 screen-printing Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 238000007639 printing Methods 0.000 claims abstract description 48
- 230000000007 visual effect Effects 0.000 claims abstract description 46
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 33
- 239000010703 silicon Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 6
- 230000008023 solidification Effects 0.000 claims abstract description 6
- 235000012431 wafers Nutrition 0.000 claims description 30
- 239000000428 dust Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
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- 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 Table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- 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
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/547—Monocrystalline silicon PV cells
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Laser Beam Processing (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The invention provides solar cell screen printing and laser sintering integrated equipment which comprises a printing turntable, a feeding transmission device, a first visual positioning device, a screen printing device, a second visual positioning device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the first visual positioning device, the screen printing device, the second visual positioning device, the laser sintering device and the discharging transmission device are arranged around the printing turntable; the printing turntable is provided with a paper rolling mechanism; after the silicon wafer is conveyed to the paper winding mechanism by the feeding and conveying device, the screen printing device adjusts the printing position according to the image provided by the first visual positioning device and performs electrode printing on the silicon wafer; the laser sintering device adjusts the laser position according to the image provided by the second visual positioning device and carries out hot melting, solidification and sintering on the electrode pattern on the silicon wafer; on the one hand, the occupied space of the equipment is greatly reduced, on the other hand, the area of the battery piece subjected to high temperature can be effectively reduced, and the conversion efficiency of the battery piece is favorably improved, and the energy consumption cost is reduced.
Description
Technical Field
The invention relates to the field of solar cell production, in particular to solar cell screen printing and laser sintering integrated equipment.
Background
At present, a metal electrode is used as an important form for collecting photoproduction current of a solar cell, and during production, a wet metal electrode is formed by screen printing of wet metal slurry, then low-temperature hot melting and solidification are carried out on the wet metal electrode through a chain sintering furnace, and then high-temperature sintering and cooling are carried out to form the metal electrode with good ohmic contact. In the prior art, when a battery piece passes through a channel of a chain sintering furnace, metal electrode contact areas and metal electrode non-contact areas on the front and back of the whole battery piece are baked by heat of the chain sintering furnace, and the internal defects of the battery piece are amplified by the high temperature, and the passivation effect of a silicon nitride film and an aluminum oxide film on the front/back of the battery piece is damaged, so that the conversion efficiency of the battery piece is influenced. On the other hand, the chain type sintering furnace has long equipment line body, occupies large space, can meet the sintering process requirement of the metal electrode only by continuously electrifying and heating, and has high power consumption and energy consumption.
Disclosure of Invention
Aiming at the technical problem, the invention provides solar cell screen printing and laser sintering integrated equipment.
A solar cell silk screen printing and laser sintering integrated device comprises a printing turntable driven by a motor to rotate, and a feeding transmission device, a first visual positioning device, a silk screen printing device, a second visual positioning device, a laser sintering device and a discharging transmission device which are arranged around the printing turntable;
the printing turntable is provided with a paper winding mechanism for bearing and conveying silicon wafers; after the silicon wafer is conveyed to the paper winding mechanism by the feeding conveying device, the silicon wafer can sequentially pass through the first visual positioning device, the screen printing device, the second visual positioning device and the laser sintering device along with the rotation of the printing turntable and is finally conveyed to the discharging conveying device by the paper winding mechanism;
the first visual positioning device is used for collecting images to be transmitted to the silicon wafer below the screen printing device; the screen printing device adjusts the printing position according to the image provided by the first visual positioning device and performs electrode printing on the silicon wafer; the second visual positioning device is used for collecting images of the silicon wafer to be transmitted to the lower part of the laser sintering device; and the laser sintering device adjusts the laser position according to the image provided by the second visual positioning device and carries out hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
Preferably, the feeding transmission device and the discharging transmission device both comprise a conveyor belt mechanism driven by a motor and a fixing part for fixing the conveyor belt mechanism; the paper rolling mechanism can move to be in butt joint with the conveyor belt mechanism along with the rotation of the printing turntable.
Preferably, two rows of positioning rollers for preventing the silicon wafers from deviating are arranged on two sides of the conveying belt mechanism.
Preferably, the screen printing device comprises a printing mechanism and a screen adjusting mechanism; the silk screen adjusting mechanism is in communication connection with the first visual positioning device, so that the position of the printing mechanism is adjusted according to the image provided by the first visual positioning device, and the printing mechanism is controlled to perform electrode printing on the silicon wafer.
Preferably, the laser sintering device comprises a laser assembly and a laser adjusting mechanism; the laser adjusting mechanism is in communication connection with the second visual positioning device, so that the position of the laser assembly is adjusted according to the image provided by the second visual positioning device, and the laser assembly is controlled to perform hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
Preferably, the laser sintering device further comprises a laser irradiation dark box, an exhaust pipe for dust removal and a dust collection box connected with the exhaust pipe; the laser assembly is installed in the laser irradiation camera bellows.
Preferably, the number of the paper rolling mechanisms is six, the six paper rolling mechanisms are uniformly distributed along the circumferential direction of the printing turntable and can be respectively positioned at the corresponding stations of the feeding transmission device, the first visual positioning device, the screen printing device, the second visual positioning device, the laser sintering device and the discharging transmission device when the paper rolling mechanisms are static.
The invention has the beneficial effects that: the screen printing device and the laser sintering device are integrally arranged around the printing turntable, and the laser sintering device is used for carrying out hot melting, curing and sintering on the electrode patterns on the silicon wafer, so that the occupied space of equipment is greatly reduced; on the other hand, the area of the battery piece subjected to high temperature can be effectively reduced, and the conversion efficiency of the battery piece is improved, and the energy consumption cost is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a first schematic structural diagram according to an embodiment of the present invention;
FIG. 2 is a second schematic structural diagram according to an embodiment of the present invention;
FIG. 3 is a top view of FIG. 2;
the figures in the drawings represent:
1. the printing device comprises a printing turntable 2, a first visual positioning device 3, a second visual positioning device 4, a paper rolling mechanism 5, a conveyor belt mechanism 6, a fixing part 7, a positioning roller 8, a printing mechanism 9, a silk screen adjusting mechanism 10, a laser assembly 11, a laser adjusting mechanism 12, a laser irradiation dark box 13, an air exhaust pipe 14 and a dust box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
An integrated equipment for screen printing and laser sintering of solar cells, as shown in fig. 1-3, comprises a printing turntable 1 driven by a motor to rotate, and a feeding transmission device, a first visual positioning device 2, a screen printing device, a second visual positioning device 3, a laser sintering device and a discharging transmission device which are arranged around the printing turntable 1.
Six paper winding mechanisms 4 for bearing and conveying silicon wafers are uniformly arranged on the printing turntable 1 along the circumferential direction of the printing turntable, and the paper winding mechanisms 4 can be respectively located at the corresponding stations of the feeding transmission device, the first visual positioning device 2, the screen printing device, the second visual positioning device 3, the laser sintering device and the discharging transmission device when being static, so that all processes can be carried out simultaneously, and the working efficiency is ensured.
The feeding transmission device and the discharging transmission device both comprise a conveyor belt mechanism 5 driven by a motor and a fixing part 6 used for fixing the conveyor belt mechanism 5, and two rows of positioning rollers 7 used for preventing silicon wafers from deviating are further mounted on two sides of the conveyor belt mechanism 5. The paper rolling mechanism 4 can move along with the rotation of the printing turntable 1 to be in butt joint with the conveying belt mechanism 5, so that the silicon wafers can be conveyed to the paper rolling mechanism 4 from the feeding conveying device, and can be conveyed to the discharging conveying device from the paper rolling mechanism 4 after being processed into battery pieces.
The first visual positioning device 2 is used for collecting images of the silicon wafer to be transmitted to the lower part of the screen printing device. The screen printing apparatus includes a printing mechanism 8 and a screen adjusting mechanism 9. The printing mechanism 8 includes a printing head assembly, a screen assembly, and a printing table or the like (not specifically shown) for mounting the printing head assembly and the screen assembly. The screen adjusting mechanism 9 is in communication connection with the first visual positioning device 2, so as to adjust the position of the screen assembly in the printing mechanism 8 according to the image provided by the first visual positioning device 2, and control the printing mechanism 8 to perform electrode printing on the silicon wafer.
The second visual positioning device 3 is used for collecting the image of the silicon wafer to be transmitted to the lower part of the laser sintering device. The laser sintering apparatus includes a laser assembly 10, a laser adjustment mechanism 11, and a laser irradiation camera 12. The laser assembly 10 is mounted within a laser illumination camera 12 and includes a laser, laser shaper, etc. (not specifically labeled). The laser adjusting mechanism 11 is in communication connection with the second visual positioning device 3, so that the position of the laser assembly 10 is adjusted according to the image provided by the second visual positioning device 3, and the laser assembly 10 is controlled to perform hot melting, curing and sintering on the electrode pattern on the silicon wafer. The laser sintering device also comprises an exhaust pipe 13 and a dust collection box 14 connected with the exhaust pipe 13, and can remove dust from the processed battery piece.
After the silicon wafer is conveyed to the paper winding mechanism 4 by the feeding conveying device, the silicon wafer can sequentially pass through the first visual positioning device 2, the screen printing device, the second visual positioning device 3 and the laser sintering device along with the rotation of the printing turntable 1, and is conveyed to the discharging conveying device by the paper winding mechanism 4 after the processing is finished. The invention can greatly reduce the overall occupied space of the equipment, and can effectively reduce the area of the cell piece subjected to high temperature through the laser sintering device, thereby being beneficial to improving the conversion efficiency of the cell piece and reducing the energy consumption cost.
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.
Claims (7)
1. The utility model provides a solar cell screen printing and laser sintering integrated equipment which characterized in that: the automatic printing machine comprises a printing turntable driven by a motor to rotate, and a feeding transmission device, a first visual positioning device, a screen printing device, a second visual positioning device, a laser sintering device and a discharging transmission device which are arranged around the printing turntable;
the printing turntable is provided with a paper winding mechanism for bearing and conveying silicon wafers; after the silicon wafer is conveyed to the paper winding mechanism by the feeding conveying device, the silicon wafer can sequentially pass through the first visual positioning device, the screen printing device, the second visual positioning device and the laser sintering device along with the rotation of the printing turntable and is finally conveyed to the discharging conveying device by the paper winding mechanism;
the first visual positioning device is used for collecting images to be transmitted to the silicon wafer below the screen printing device; the screen printing device adjusts the printing position according to the image provided by the first visual positioning device and performs electrode printing on the silicon wafer; the second visual positioning device is used for collecting images of the silicon wafer to be transmitted to the lower part of the laser sintering device; and the laser sintering device adjusts the laser position according to the image provided by the second visual positioning device and carries out hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
2. The solar cell screen printing and laser sintering integrated equipment as claimed in claim 1, wherein: the feeding transmission device and the discharging transmission device both comprise a conveyor belt mechanism driven by a motor and a fixing part for fixing the conveyor belt mechanism; the paper rolling mechanism can move to be in butt joint with the conveyor belt mechanism along with the rotation of the printing turntable.
3. The solar cell screen printing and laser sintering integrated device according to claim 2, wherein: two rows of positioning rollers for preventing silicon wafers from deviating are mounted on two sides of the conveying belt mechanism.
4. The solar cell screen printing and laser sintering integrated equipment as claimed in claim 1, wherein: the screen printing device comprises a printing mechanism and a screen adjusting mechanism; the silk screen adjusting mechanism is in communication connection with the first visual positioning device, so that the position of the printing mechanism is adjusted according to the image provided by the first visual positioning device, and the printing mechanism is controlled to perform electrode printing on the silicon wafer.
5. The solar cell screen printing and laser sintering integrated equipment as claimed in claim 1, wherein: the laser sintering device comprises a laser component and a laser adjusting mechanism; the laser adjusting mechanism is in communication connection with the second visual positioning device, so that the position of the laser assembly is adjusted according to the image provided by the second visual positioning device, and the laser assembly is controlled to perform hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
6. The solar cell screen printing and laser sintering integrated device according to claim 5, wherein: the laser sintering device also comprises a laser irradiation camera bellows, an exhaust tube for dust removal and a dust collection box connected with the exhaust tube; the laser assembly is installed in the laser irradiation camera bellows.
7. The integrated solar cell screen printing and laser sintering device according to any one of claims 1 to 6, wherein: the quantity of stock form mechanism is six, and six stock form mechanisms are followed the circumference equipartition of undertaking the printing revolving stage, and can be located respectively when static material loading transmission device, first vision positioner, screen printing device, second vision positioner, laser sintering device and unloading transmission device correspond station department.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682559.7A CN113451441A (en) | 2021-06-18 | 2021-06-18 | Solar cell screen printing and laser sintering integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682559.7A CN113451441A (en) | 2021-06-18 | 2021-06-18 | Solar cell screen printing and laser sintering integrated equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113451441A true CN113451441A (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110682559.7A Pending CN113451441A (en) | 2021-06-18 | 2021-06-18 | Solar cell screen printing and laser sintering integrated equipment |
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| Country | Link |
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| CN (1) | CN113451441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594706A (en) * | 2024-01-18 | 2024-02-23 | 深圳市韵腾激光科技有限公司 | Full-automatic online laser-assisted sintering machine for photovoltaic silicon wafer |
-
2021
- 2021-06-18 CN CN202110682559.7A patent/CN113451441A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594706A (en) * | 2024-01-18 | 2024-02-23 | 深圳市韵腾激光科技有限公司 | Full-automatic online laser-assisted sintering machine for photovoltaic silicon wafer |
| CN117594706B (en) * | 2024-01-18 | 2024-04-09 | 深圳市韵腾激光科技有限公司 | Full-automatic online laser-assisted sintering machine for photovoltaic silicon wafer |
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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. |
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Effective date of registration: 20230413 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 |