CN114464703B - Preparation process of laminated tile battery - Google Patents
Preparation process of laminated tile battery Download PDFInfo
- Publication number
- CN114464703B CN114464703B CN202210111284.6A CN202210111284A CN114464703B CN 114464703 B CN114464703 B CN 114464703B CN 202210111284 A CN202210111284 A CN 202210111284A CN 114464703 B CN114464703 B CN 114464703B
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- Prior art keywords
- battery
- piece
- cutting
- belt
- battery piece
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 238000007639 printing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003698 laser cutting Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 238000003475 lamination Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000715 Mucilage Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- 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
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67763—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67766—Mechanical parts of transfer 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Robotics (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a preparation process of a laminated tile battery, which is mainly used for the steps of cutting and printing of battery pieces, and comprises the following steps: the battery piece is controlled to move on the same driving belt when the conductive adhesive is pre-cut and printed, and a box bin is arranged between the battery piece and the driving belt for auxiliary connection; in the slicing process after printing the conductive adhesive, the battery piece is controlled to be directly in contact connection with the slicing belt. The invention adopts the same type of belt to transmit in the pre-cutting and printing process, and the battery piece is placed in a special box bin, so that the battery piece can be stably placed in the cutting and printing process, the cutting and printing precision is improved, the subsequent piece is easier to split and separate, the battery string without hidden cracks is obtained, the adhesive strength of the conductive adhesive is high in the subsequent lamination process, the quality of the produced piece is improved, and the piece dividing rate is improved by 2-5%.
Description
Technical Field
The invention belongs to the technical field of solar cell preparation, and particularly relates to a preparation process of a laminated tile battery.
Background
The laminated tile component is used as one of the development directions of clean energy, an engine is added for realizing carbon neutralization, but the laminated tile component has smaller slicing process window in the packaging process, is easy to generate poor slicing, causes hidden cracking, mucilage glue and the like of battery slices, and becomes one of the bottlenecks for improving the laminated tile yield. Analysis shows that the thickness of the battery piece is different, so that the cutting depth of the battery piece is inconsistent in cutting, and when the battery piece is too deep, the battery piece is penetrated and the belt is penetrated; if too shallow, the battery strings cannot be separated during dicing, resulting in a high dicing yield.
Disclosure of Invention
The invention provides a preparation process of a shingled battery, which solves the technical problems of easy hidden cracking of a battery string and lower slicing yield caused by unreasonable process design in the prior art.
In order to solve at least one of the technical problems, the invention adopts the following technical scheme:
a preparation process of a shingled battery comprises the following steps:
the battery piece is controlled to move on the same driving belt when the conductive adhesive is pre-cut and printed, and a box bin is arranged between the battery piece and the driving belt for auxiliary connection;
in the slicing process after printing the conductive adhesive, the battery piece is controlled to be directly in contact connection with the slicing belt.
Further, the battery piece with be furnished with box storehouse auxiliary connection between the drive belt, specifically include:
the box bin with an opening at the upper end surface is arranged on the transmission belt;
then placing the battery piece in the box bin;
wherein, be equipped with a plurality of through-holes in the box storehouse, every battery strip in the battery piece all is passed through the through-hole is adsorbed on the conveyer belt.
Further, the magnetic attraction control device also comprises a magnetic attraction control device for the box bin and the driving belt, and specifically comprises:
two parallel magnetic force strips are arranged along the width direction of the transmission belt;
and a magnetic force piece matched with the magnetic force strip is arranged on the width direction of the lower end surface of the box bin so that the box bin is fixed on the transmission belt.
Further, the through holes are arranged along the length direction of the cutting lines in the battery piece; and is arranged in a staggered manner with the cutting lines in the battery piece.
Further, the driving belt is perpendicular to the cutting line in the battery piece.
Furthermore, the pre-cutting and the printing of the conductive adhesive on the back surface of the battery piece are performed, and the pre-cutting is performed by a laser method.
Further, the depth of the pre-cutting of the battery piece is not more than 60% of the thickness of the battery piece.
Further, when the conductive adhesive is printed on the battery piece, the thickness of the conductive adhesive is 30-200um, and the width is 500-3000um.
Further, when the battery piece is sliced, the method specifically includes:
controlling the battery piece to leave the box bin, enabling the battery piece to move to the piece dividing belt, and enabling the back surface of the battery piece to be arranged upwards continuously;
controlling the front and rear groups of the split belts for placing the battery pieces to step at different speeds, and driving the split plates to be separated at a preset cutting position by the two groups of split belts at different speeds.
Further, each of the battery pieces forms 4-7 battery bars.
The invention relates to a preparation process of a laminated tile battery, which adopts the same type of belt for transmission in the pre-cutting and printing process, and enables battery pieces to be placed in a special box bin, so that the battery pieces can be stably placed during cutting and printing, the cutting and printing precision is improved, the subsequent pieces are easier to split and separate, a battery string without hidden cracks is obtained, the high adhesive strength of conductive adhesive during subsequent lamination can be ensured, the quality of the produced pieces is improved, and the splitting rate is improved by 2-5%.
Drawings
FIG. 1 is a flow chart of a process for manufacturing a shingled cell according to an embodiment of the present invention;
FIG. 2 is a schematic view of a battery sheet of an embodiment of the present invention as pre-cut and printed;
fig. 3 is a schematic view of a battery sheet according to an embodiment of the present invention at the time of dicing.
In the figure:
10. the box bin 11, the baffle strip 12 and the through hole
13. Magnetic button 20, driving belt 21 and magnetic strip
30. Dicing tape 40, battery piece 41, dicing line
42. Battery strip
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
The embodiment provides a manufacturing process of a shingled battery, as shown in fig. 1, comprising the following steps:
the battery piece 40 is controlled to move on the same driving belt 20 during pre-cutting and printing of the conductive adhesive, and the battery piece 40 is connected with the driving belt 20 in an auxiliary way by the box bin 10; and in the dicing process after printing the conductive paste, the control battery piece 40 is directly in contact connection with the dicing tape 30.
Specifically, the auxiliary connection of the box cabin 10 is provided between the battery piece 40 and the driving belt 20, specifically including:
the empty box bins 10 are sequentially placed at intervals along the transmission direction of the transmission belt 20 by using a mechanical arm, each box bin 10 is placed, the battery pieces 40 placed on the feeding table are placed in the box bins 10 by using a piece feeding machine, and the length of the box bins 10 is set along the length of the transmission belt 20.
When the battery piece 40 is placed, the back surface of the battery piece 40 is arranged upwards, because in the pre-cutting and printing conductive adhesive manufacturing process, the back surface of the battery piece 40 is operated, the pre-cutting is performed by adopting a laser method, the cutting line 41 is arranged in the direction perpendicular to the length of the main grid line in the front surface of the battery piece 40, and the cutting line 41 is positioned at the connecting position between the adjacent battery bars 42.
The length of the cutting line 41 is arranged perpendicular to the length direction of the belt 20, both in the case of dicing and in the case of precutting.
In the process of pre-cutting and printing the conductive adhesive, the same type of driving belt 20 is used for driving the box bin 10 to drive the battery piece 40 to move forwards. The cooperation between the box bin 10 and the driving belt 20 is shown in fig. 2, the box bin 10 has a structure with an opening at an upper end surface, and a stop bar 11 is arranged around the box bin 10, so as to prevent the battery piece 40 from shifting or shaking when in the box bin 10. The height of the barrier rib 11 should not be too high, and is generally 2-20mm, so long as the barrier rib can block the battery plate 40. The cartridge 10 has a length in the range of 500-5000mm, a width in the range of 500-1000mm, and a thickness in the range of 5-20mm.
A plurality of through holes 12 are uniformly arranged in the inner cavity of the box bin 10, and the through holes 12 can enable the box bin 10 and the battery pieces 40 to be adsorbed on the driving belt 20 in a vacuum way. All the through holes 12 may be circular or polygonal in structure, so long as they can be used as suction holes to suck the cartridge 10 and the battery pieces 40 together onto the belt 20. The through holes 12 are all arranged along the length direction of the cutting lines 41 in the battery piece 40; and is offset from the cut line 41 in the battery sheet 40.
Meanwhile, in order to further ensure the stability of the box bin 10 placed on the driving belt 20, the magnetic attraction control is further performed between the box bin 10 and the driving belt 20, and the magnetic attraction control specifically comprises:
four magnetic buttons 13 are arranged at four right angles at the bottom of the box bin 10 and are mainly matched with magnetic bars 21 arranged on a transmission belt 20. That is, two parallel magnetic strips 21 are arranged along the width direction of the transmission belt 20; a magnetic sheet 13 is provided on the lower end surface of the cartridge 10 in the width direction in cooperation with a magnetic bar 21 to immobilize the cartridge 10 on the belt 20. The box bin 10 can enable the battery piece 40 to be stably placed on the transmission belt 20 when the battery piece 40 is subjected to the processes of laser cutting and printing conductive adhesive in sequence, so that the accuracy of the laser cutting depth and width and the accuracy of the printing position are ensured, and a foundation is laid for the follow-up improvement of the yield of the split pieces.
When the laser pre-cutting is performed, the battery piece 40 is fixed, the laser beam is positioned above the back surface of the battery piece 40 and is used for pre-cutting one by one along the length direction of the cutting line 41, and the depth of the pre-cutting in the battery piece 40 is not more than 60% of the thickness of the battery piece 40; the pre-cut battery cells 40 are in a half-connected configuration. The managed arrangement of the magazine 10 allows laser cutting to avoid affecting the quality of the belt 20 by puncturing the thickness of the battery pieces 40, regardless of the thickness of the battery pieces 40 during pre-cutting.
After the pre-cutting in the battery piece 40 is completed, conducting resin printing is conducted on the back surface of the battery piece 40, and the printing positions are located at pad point positions on two sides of the cutting line 41. Wherein, the thickness of the 40pad point printing of the battery piece is 30-200um, and the width is 500-3000um.
As shown in fig. 3, when the battery piece 40 is sliced, the method specifically includes:
the battery piece 40 is controlled to leave the box bin 10 and the battery piece 40 is moved onto the piece belt 30, and the back surface of the battery piece 40 is continuously arranged upwards.
In the process of slicing, two groups of slicing belts 30 are needed to be arranged front and back, wherein the front and back slicing belts 30 are arranged along the length direction of the secondary grid line (the battery piece 40 is a double-glass battery), namely, are arranged in parallel with the length direction of the main grid line (omitted from the drawing) on the front; if the battery sheet 40 is a single-glass battery, the moving direction of the dicing tape 30 is also parallel to the longitudinal direction of the front main grid line.
The two sides of the front and rear sets of the split belts 30 are controlled to perform differential speed stepping, that is, the speed of the front set of split belts 30 is different from the speed of the rear set of split belts 30, and the speed of the front set of split belts 30 is greater than the speed of the rear set of split belts 30, so that an arc-shaped height difference is formed between the front and rear sets of differential speed split belts 30, and the arc-shaped height difference causes a friction difference between the belt 20 and the battery strips 42 in the half-connected battery plates 40, so that the battery plates 40 are driven to split at preset cutting positions, and each battery plate 40 is cut into 4-7 battery strips 42.
After slicing, stacking and serially arranging a plurality of battery strips 42 to form a battery string; firstly, identifying pad points on the back surface of the battery strip 42 and positioning and placing the battery strip 42; and then a plurality of battery bars 42 are taken and are arranged in a mode of overlapping every two adjacent battery bars up and down to form a battery string, and when the battery strings are laminated, the cut adjacent battery bars 42 are required to be laminated after being rotated by 180 degrees.
And then the stacked battery strings are cured in a curing furnace through a conveyor belt, wherein the curing temperature is 140-220 ℃ and the curing time is 70-90s.
The invention relates to a preparation process of a laminated tile battery, which adopts the same type of belt for transmission in the pre-cutting and printing process, and enables battery pieces to be placed in a special box bin, so that the battery pieces can be stably placed during cutting and printing, the cutting and printing precision is improved, the subsequent pieces are easier to split and separate, the battery string without hidden cracks is obtained, the adhesive strength of conductive adhesive is high during the subsequent lamination, the quality of the produced pieces is improved, and the splitting rate is improved by 2-5%.
The foregoing detailed description of the embodiments of the invention has been presented only to illustrate the preferred embodiments of the invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The preparation process of the shingled battery is characterized by comprising the following steps of:
the battery piece is controlled to move on the same driving belt when the conductive adhesive is pre-cut and printed, and a box bin is arranged between the battery piece and the driving belt for auxiliary connection;
in the slicing process after printing the conductive adhesive, the battery piece is controlled to be directly in contact connection with the slicing belt;
the battery piece with be furnished with box storehouse auxiliary connection between the drive belt, specifically include:
the box bin with an opening at the upper end surface is arranged on the transmission belt;
then placing the battery piece in the box bin;
wherein, a plurality of through holes are arranged in the box bin, and each battery strip in the battery piece is adsorbed on the transmission belt through the through holes;
still include the box bin with the drive belt is magnetism and inhale control, specifically includes:
two parallel magnetic force strips are arranged along the width direction of the transmission belt;
and a magnetic force piece matched with the magnetic force strip is arranged on the width direction of the lower end surface of the box bin so that the box bin is fixed on the transmission belt.
2. The manufacturing process of the shingle cell according to claim 1, wherein the through holes are provided along a length direction of a cutting line in the cell; and is arranged in a staggered manner with the cutting lines in the battery piece.
3. The process of claim 2, wherein the belt is disposed perpendicular to the cut lines in the battery cells.
4. A process for manufacturing a laminated tile battery according to any one of claims 1-3, wherein the pre-cutting and printing of the conductive glue on the battery sheet are performed on the back side of the battery sheet, and the pre-cutting is performed by laser cutting.
5. The process of claim 4, wherein the depth of precut of the battery cells is no greater than 60% of the thickness of the battery cells.
6. The manufacturing process of the shingle cell according to claim 5, wherein when the conductive paste is printed on the cell sheet, the thickness of the conductive paste is 30-200um and the width is 500-3000um.
7. A process for preparing a shingled battery according to any of claims 1-3, 5-6, wherein, when the battery sheet is sliced, it comprises:
controlling the battery piece to leave the box bin, enabling the battery piece to move to the piece dividing belt, and enabling the back surface of the battery piece to be arranged upwards continuously;
controlling the front and rear groups of the split belts for placing the battery pieces to step at different speeds, and driving the split plates to be separated at a preset cutting position by the two groups of split belts at different speeds.
8. A process for preparing a shingled battery according to claim 7, wherein each of said battery cells forms 4-7 of said battery strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210111284.6A CN114464703B (en) | 2022-01-29 | 2022-01-29 | Preparation process of laminated tile battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210111284.6A CN114464703B (en) | 2022-01-29 | 2022-01-29 | Preparation process of laminated tile battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114464703A CN114464703A (en) | 2022-05-10 |
| CN114464703B true CN114464703B (en) | 2023-09-08 |
Family
ID=81412581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210111284.6A Active CN114464703B (en) | 2022-01-29 | 2022-01-29 | Preparation process of laminated tile battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114464703B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681908A (en) * | 2012-08-31 | 2014-03-26 | 科马斯控股股份公司 | Method and device for producing solar cell strings |
| CN108369972A (en) * | 2015-12-01 | 2018-08-03 | 太阳能公司 | Multioperation tool for photovoltaic cell processing |
| CN108807575A (en) * | 2018-06-04 | 2018-11-13 | 浙江宝利特新能源股份有限公司 | A kind of preparation method of the more main grid cell piece stacked wafer moudles of MBB |
-
2022
- 2022-01-29 CN CN202210111284.6A patent/CN114464703B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681908A (en) * | 2012-08-31 | 2014-03-26 | 科马斯控股股份公司 | Method and device for producing solar cell strings |
| CN108369972A (en) * | 2015-12-01 | 2018-08-03 | 太阳能公司 | Multioperation tool for photovoltaic cell processing |
| CN108807575A (en) * | 2018-06-04 | 2018-11-13 | 浙江宝利特新能源股份有限公司 | A kind of preparation method of the more main grid cell piece stacked wafer moudles of MBB |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114464703A (en) | 2022-05-10 |
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