CN220895581U - Battery cell lamination device - Google Patents
Battery cell lamination device Download PDFInfo
- Publication number
- CN220895581U CN220895581U CN202322364548.1U CN202322364548U CN220895581U CN 220895581 U CN220895581 U CN 220895581U CN 202322364548 U CN202322364548 U CN 202322364548U CN 220895581 U CN220895581 U CN 220895581U
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- plate
- lamination
- positive plate
- negative plate
- positive
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- 238000003475 lamination Methods 0.000 title claims abstract description 100
- 230000007246 mechanism Effects 0.000 claims abstract description 104
- 238000001179 sorption measurement Methods 0.000 claims abstract description 61
- 238000005520 cutting process Methods 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims 5
- 230000005611 electricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
-
- 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
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- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
The utility model discloses a battery cell lamination device which comprises a positive plate unreeling mechanism, a negative plate unreeling mechanism, a diaphragm lamination mechanism and a rotary adsorption mechanism, wherein the positive plate unreeling mechanism and the negative plate unreeling mechanism are respectively arranged at two opposite sides of the rotary adsorption mechanism; the rotary adsorption mechanism comprises guide rods, an adsorption platform, a disc and a motor for driving the disc to rotate, one ends of the guide rods are connected to the rotation center of the disc, and the other ends of the guide rods extend to the edge of the disc and are fixedly connected with the adsorption platform; the lamination device improves the production speed and the lamination safety of the lamination, reduces the cost and finally improves the quality and the efficiency of the lamination core.
Description
Technical Field
The utility model relates to the technical field of lithium battery preparation, in particular to a battery core lamination device.
Background
As more and more electronic products enter our lives, the demands of people on lithium batteries are higher and higher while impacting our lifestyles. The current manufacturing process of the lithium battery cell mainly comprises a winding process and a lamination process. The winding process is always dominant due to high efficiency and low cost, but as the requirements of lithium batteries on energy density, safety and cell size are increased, the laminated cells start to attract a large number of enterprises to develop lamination equipment. However, lamination machines have significant disadvantages in terms of efficiency and cost compared to winders. Therefore, how to improve lamination efficiency and space utilization becomes two important issues that must be considered in developing lamination equipment.
In the prior art, the number of lamination stages is increased to realize simultaneous production of multiple cores, for example, patent CN110661023a discloses a double-platform circulation sectional turret lamination device and a lamination process thereof, and sequential alternate lamination on a double lamination mechanism is simultaneously realized in the same rotation period, so that the lamination speed can be improved from the device, but only the single lamination device is increased, the equipment size is additionally increased, the cost is increased, and the cost is huge.
Even some safety risks of laminated batteries caused in the process of realizing multi-core lamination production by improving the lamination speed are not considered, and meanwhile, resource waste caused by machine idling is not considered, so that the core lamination quality and the lamination efficiency are affected.
Disclosure of utility model
Based on the technical problems in the background art, the utility model provides a battery core lamination device, and the lamination quality and efficiency are improved.
The utility model provides a battery cell lamination device which comprises a positive plate unreeling mechanism, a negative plate unreeling mechanism, a diaphragm lamination mechanism and a rotary adsorption mechanism, wherein the positive plate unreeling mechanism and the negative plate unreeling mechanism are respectively arranged on two opposite sides of the rotary adsorption mechanism, and the two diaphragm lamination mechanisms are respectively arranged on the other two opposite sides of the rotary adsorption mechanism.
Further, the rotary adsorption mechanism comprises a guide rod, an adsorption platform, a disc and a motor for driving the disc to rotate, one ends of the guide rods are connected to the rotating center of the disc, and the other ends of the guide rods extend to the edge of the disc and are fixedly connected with the adsorption platform.
Further, the four guide rods are sequentially arranged at ninety degrees, the guide rods are of telescopic structures, the end part of each guide rod is connected with an adsorption platform, and the four adsorption platforms respectively correspond to the positive plate unreeling mechanism, the negative plate unreeling mechanism and the two diaphragm lamination mechanisms.
Further, the positive plate unreeling mechanism comprises a positive plate unreeling roller, a positive plate transition roller, a positive plate buffer belt and a positive plate cutting assembly, wherein the positive plate unreeled by the positive plate unreeling roller is tiled on the positive plate buffer belt through the positive plate transition roller, and the positive plate cutting assembly is used for cutting the positive plate on the positive plate buffer belt, and the end part of the positive plate buffer belt is close to the rotary adsorption mechanism.
Further, negative pole piece unreeling mechanism includes negative pole piece unreeling roller, negative pole piece transition roller, negative pole piece buffer zone and negative pole piece cutting assembly, and the negative pole piece of negative pole piece unreeling roller unreels passes through negative pole piece transition roller tiling at negative pole piece buffer zone, and negative pole piece cutting assembly is used for cutting the negative pole piece on the negative pole piece buffer zone, and the tip of negative pole piece buffer zone is close to rotation adsorption mechanism setting.
Further, the diaphragm lamination mechanism comprises a diaphragm unreeling roller, a compression roller assembly, a lamination platform, a cylinder for driving the compression roller assembly to move and a tabletting mechanism for limiting a positive plate or a negative plate on the diaphragm, wherein the diaphragm unreeled by the diaphragm unreeling roller is paved on the lamination platform through the compression roller assembly.
Further, the tabs of the positive electrode sheet and the negative electrode sheet are positioned on the same side after lamination.
The battery core lamination device provided by the utility model has the advantages that: according to the battery cell lamination device provided by the structure, the idle running problem does not exist in each rotation of the rotary adsorption mechanism, the idle running time of equipment is eliminated, and the production speed of lamination is improved. In addition, through the back and forth rotation of the rotary adsorption mechanism, positive and negative pole pieces are sequentially stacked on the left diaphragm lamination mechanism and the right diaphragm lamination mechanism in a Z-stack mode, and the lamination device is simple to operate and can be suitable for mass production; the diaphragm lamination mechanism does not rotate along with the turntable, so that dislocation of the pole pieces caused by rotation can be reduced, and the risk of poor cladding is reduced; the turntable only rotates in a reciprocating way within a range of 90 degrees so as to reduce the positioning difficulty of the turntable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of an anode sheet unreeling mechanism;
FIG. 3 is a schematic structural view of a negative electrode sheet unreeling mechanism;
FIG. 4 is a schematic diagram of a diaphragm lamination mechanism;
FIG. 5 is a schematic diagram of the structure of positive, negative and separator laminations;
The device comprises a 1-positive plate unreeling mechanism, a 2-negative plate unreeling mechanism, a 3-diaphragm lamination mechanism, a 4-rotary adsorption mechanism, a 11-positive plate, a 12-positive plate unreeling roller, a 13-positive plate transition roller, a 14-positive plate buffer belt, a 21-negative plate, a 22-negative plate unreeling roller, a 23-negative plate transition roller, a 24-negative plate buffer belt, a 31-diaphragm unreeling roller, a 32-compression roller assembly, a 33-lamination platform, a 34-diaphragm, a 41-guide rod, a 42-adsorption plate, a 43-disc, a 331-first lamination platform, a 332-second lamination platform, a 421-first adsorption plate, a 422-second adsorption plate, a 423-third adsorption plate and a 424-fourth adsorption plate.
Detailed Description
In the following detailed description of the present utility model, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 5, the battery core lamination device provided by the utility model comprises a positive plate unreeling mechanism 1, a negative plate unreeling mechanism 2, a diaphragm lamination mechanism 3 and a rotary adsorption mechanism 4, wherein the positive plate unreeling mechanism 1 and the negative plate unreeling mechanism 2 are respectively arranged on two opposite sides of the rotary adsorption mechanism 4, and the two diaphragm lamination mechanisms 3 are respectively arranged on the other two opposite sides of the rotary adsorption mechanism 4.
The rotary adsorption mechanism 4 adsorbs the positive electrode plate 11 unreeled by the positive electrode plate unreeling mechanism 1 and the negative electrode plate 21 unreeled by the negative electrode plate unreeling mechanism 2, and the adsorbed electrode plates are respectively arranged in the diaphragm lamination mechanism 3 for lamination through the rotation function of the rotary adsorption mechanism 4, so that the problem of idling does not exist in each rotation of the rotary adsorption mechanism 4, the idling time of equipment is eliminated, and the production speed of lamination is improved. In addition, through the back and forth rotation of rotary adsorption mechanism 4 to the form of Z stacks, with positive and negative pole piece stack in proper order on two diaphragm lamination mechanism 3 about, this lamination device easy operation has realized improving the idle running of machinery through rotary adsorption mechanism, for the mode that only increases individual electric core lamination device, has reduced electric core lamination cost, applicable mass production.
In this embodiment, the positive plate unreeling mechanism 1 includes a positive plate unreeling roller 12, a positive plate transition roller 13, a positive plate buffer belt 14 and a positive plate cutting assembly, the positive plate 11 unreeled by the positive plate unreeling roller 12 is tiled on the positive plate buffer belt 14 through the positive plate transition roller 13, and the positive plate cutting assembly is used for cutting the positive plate 11 on the positive plate buffer belt 14, and the end part of the positive plate buffer belt 14 is close to the rotary adsorption mechanism 4.
The negative plate unreeling mechanism 2 comprises a negative plate unreeling roller 22, a negative plate transition roller 23, a negative plate buffer belt 24 and a negative plate cutting assembly, wherein the negative plate 21 unreeled by the negative plate unreeling roller 22 is flatly paved on the negative plate buffer belt 24 through the negative plate transition roller 23, the negative plate cutting assembly is used for cutting the negative plate 21 on the negative plate buffer belt 24, and the end part of the negative plate buffer belt 24 is close to the rotary adsorption mechanism 4.
The structures of the positive electrode sheet unreeling mechanism 1 and the negative electrode sheet unreeling mechanism 2 are basically identical, and the structure of the positive electrode sheet unreeling mechanism 1 is described below, and the negative electrode sheet unreeling mechanism 2 can be synchronously and correspondingly: the number of the positive plate transition rollers 13 can be specifically set according to actual use, wherein in the process that a plurality of positive plate transition rollers 13 are sequentially set, a tensioning roller can be set to tension the positive plate 11, so that the positive plate 11 can be laid on the positive plate buffer zone 14 without folds, in addition, in order to enable the positive plate 11 to be laid on the positive plate buffer zone 14 stably, one positive plate transition roller 13 and the positive plate buffer zone 14 are arranged in an almost attached manner, and the positive plate 11 passes through the gap between the positive plate transition roller 13 and the positive plate buffer zone 14 and is laid on the positive plate buffer zone 14 under a certain compression condition. The positive plate cutting assembly cuts the positive plate 11 tiled on the positive plate buffer belt 14 to obtain the positive plate 11 with a certain length, and the positive plate buffer belt 14 can convey the cut positive plate 11 to a feeding position, so that the end part of the positive plate buffer belt 14 is close to the adsorption plate 42 to facilitate the adsorption plate 42 to adsorb and carry the positive plate 11.
In this embodiment, the separator lamination mechanism 3 includes a separator unreeling roller 31, a press roller assembly 32, a lamination platform 33, an air cylinder for driving the press roller assembly 32 to move, and a tabletting mechanism for limiting the positive electrode sheet 11 or the negative electrode sheet 21 on the separator, and the separator unreeled by the separator unreeling roller 31 is laid on the lamination platform 33 through the press roller assembly 32.
The lamination platform 33 is provided with a lamination mechanism, and the lamination mechanism ensures that stacked pole pieces are not dislocated, so that risks of short circuit and the like caused by dislocation of the pole pieces are avoided, and the lamination mechanism can adopt the existing mechanism, for example, limit the two ends of the pole pieces by driving limiting blocks through an air cylinder, so that the limiting of the pole pieces is realized.
The diaphragm 34 adopts the compression roller assembly 32 to drive the back and forth movement through the cylinder to realize Z-shaped lamination form, and when each direction lamination is changed to the diaphragm 34, the positive plate 11 or the negative plate 21 is conveyed to the lamination platform through the adsorption plate 42, so that the positive plate 11 and the negative plate 12 are arranged at the same side at intervals and are separated through the diaphragm 34, die cutting time is saved, and lamination difficulty is reduced.
In addition, the positive pole tab is flush with the short side of the positive pole piece 11 in the lamination, the negative pole tab is flush with the short side of the negative pole piece 21, the positive pole tab is flush with the short side of the pole piece, slicing efficiency can be improved, meanwhile, the alignment level can be detected more intuitively when the alignment is detected, and detection and judgment time is saved. In addition, when two stacked cores are welded, as the welding position of the cover plate is positioned at one side of the welding of the lug, the welding space of the lug can be increased, the length of the lug can be properly increased on the design of the lug, the tearing of the lug, which is easy to cause by welding the lug and the connecting sheet, is reduced, the capacity loss caused by the tearing of the lug is reduced, the welding yield of the lug is effectively improved, and the product quality is improved; the method is suitable for super-multiple laminated core batteries and improves the capacity of the laminated batteries.
In the present embodiment, the rotary suction mechanism 4 includes a guide bar 41, a suction plate 42, a disc 43, and a motor for driving the disc 43 to rotate, one end of each of the guide bars 41 is connected to the rotation center of the disc 43, and the other end extends toward the edge of the disc 43 and is fixedly connected to the suction plate 42. The four guide rods 41 are sequentially arranged at ninety degrees, the guide rods 41 are of telescopic structures, the end part of each guide rod 41 is connected with one adsorption plate 42, and the four adsorption plates 42 respectively correspond to the positive plate unreeling mechanism 1, the negative plate unreeling mechanism 2 and the two diaphragm lamination mechanisms 3.
The rotary adsorption mechanism 4 is a disc 43 rotating structure, equipment space can be effectively saved, the turntable 43 can be arranged to rotate in a reciprocating manner within a 90-degree range, so that the positioning difficulty of the turntable 43 is reduced, and meanwhile, the process mechanisms are arranged at four directions of the rotary adsorption mechanism 4, so that two adjacent adsorption plates 42 cannot idle at the same time, the lamination efficiency can be effectively improved, and the idle time is reduced.
It can be understood that the diaphragm lamination mechanism 3 does not rotate along with the turntable, so that dislocation of the pole pieces caused by rotation can be reduced, and the risk of poor cladding is reduced; in addition, the guide rods 41 are of telescopic structures, and can drive the adsorption plate 42 to move above the positive and negative electrode plates so as to stably adsorb the positive and negative electrode plates, and meanwhile, the adsorption plate 42 can be arranged above the lamination platform 33 through the extension action of the guide rods 41 so as to place the adsorbed positive and negative electrode plates on the lamination platform 33, and the scheme that the positive electrode plates 11 are transferred onto the adsorption plate 42 by a mechanical arm and the adsorbed positive and negative electrode plates are transferred to the lamination platform 33 by the mechanical arm is not excluded.
The working process comprises the following steps: by using a Z stacking mode, firstly, fixing a diaphragm 34 at one end of the bottoms of the left lamination platform 33 and the right lamination platform 33, cutting the positive plate 11 and the negative plate 21 into fixed sizes by the positive plate unreeling mechanism 1 and the negative plate unreeling mechanism 2, conveying the fixed sizes to a feeding position, controlling a first adsorption plate 421 to grasp the negative plate 21 by a guide rod 41, simultaneously, grasping the positive plate 11 by a third adsorption plate 423, driving the guide rod 41 to rotate anticlockwise by 90 degrees by a disc 43 through a motor, placing the negative plate 21 on a first lamination platform 331 by the first adsorption plate 421, and placing the positive plate 11 on a second lamination platform 332 by the third adsorption plate 423; meanwhile, the second adsorption plate 422 grabs the positive electrode plate 11 at the positive electrode plate unreeling mechanism, and the fourth adsorption plate 424 grabs the negative electrode plate 21 at the negative electrode plate unreeling mechanism 1; then the guide rod 41 rotates 90 degrees clockwise along with the disc 43, the second adsorption plate 422 places the positive plate 11 on the first lamination platform 331, the fourth adsorption plate 424 places the negative plate 21 on the second lamination platform 332, at this time, the first adsorption plate 421 and the third adsorption plate 423 return to the initial positions, the previous operation is repeated, and the pole pieces are sequentially and reciprocally stacked on the lamination platform 33 to complete the core stacking manufacturing; on same lamination platform, all separate through the diaphragm between the positive and negative pole piece, the diaphragm passes through Z type mode lamination, simultaneously, in order to avoid pole piece (positive pole piece 11 and negative pole piece 12) dislocation, disc 43 is getting the material and rotates, and the preforming mechanism on lamination platform 33 can fix the pole piece that has already folded, reduces the security risk that pole piece or diaphragm misplacement caused.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a electricity core lamination device, its characterized in that includes positive plate unreels mechanism (1), negative plate unreels mechanism (2), diaphragm lamination mechanism (3) and rotation adsorption mechanism (4), and positive plate unreels mechanism (1), negative plate unreels mechanism (2) set up respectively in rotation adsorption mechanism (4) relative both sides, and two diaphragm lamination mechanisms (3) set up respectively in rotation adsorption mechanism (4) other relative both sides.
2. The cell lamination apparatus according to claim 1, wherein the rotary suction mechanism (4) comprises a guide rod (41), a suction plate (42), a disc (43) and a motor for driving the disc (43) to rotate, one end of each guide rod (41) is connected to a rotation center of the disc (43), and the other end extends to an edge of the disc (43) and is fixedly connected with the suction plate (42).
3. The cell lamination device according to claim 2, wherein four guide rods (41) are sequentially arranged at ninety degrees, the guide rods (41) are of telescopic structures, an adsorption plate (42) is connected to the end of each guide rod (41), and the four adsorption plates (42) correspond to the positive plate unreeling mechanism (1), the negative plate unreeling mechanism (2) and the two diaphragm lamination mechanisms (3) respectively.
4. The battery cell lamination device according to claim 1, wherein the positive plate unreeling mechanism (1) comprises a positive plate unreeling roller (12), a positive plate transition roller (13), a positive plate buffer belt (14) and a positive plate cutting assembly, the positive plate (11) unreeled by the positive plate unreeling roller (12) is tiled on the positive plate buffer belt (14) through the positive plate transition roller (13), the positive plate cutting assembly is used for cutting the positive plate (11) on the positive plate buffer belt (14), and the end part of the positive plate buffer belt (14) is close to the rotary adsorption mechanism (4).
5. The cell lamination device according to claim 1, wherein the negative plate unreeling mechanism (2) comprises a negative plate unreeling roller (22), a negative plate transition roller (23), a negative plate buffer belt (24) and a negative plate cutting assembly, the negative plate (21) unreeled by the negative plate unreeling roller (22) is tiled on the negative plate buffer belt (24) through the negative plate transition roller (23), and the negative plate cutting assembly is used for cutting the negative plate (21) on the negative plate buffer belt (24), and the end part of the negative plate buffer belt (24) is close to the rotary adsorption mechanism (4).
6. Cell lamination device according to claim 1, characterized in that the membrane lamination mechanism (3) comprises a membrane unreeling roller (31), a press roller assembly (32), a lamination platform (33), a cylinder for driving the press roller assembly (32) to move and a tabletting mechanism for limiting the positive plate (11) or the negative plate (21) on the membrane, wherein the membrane unreeled by the membrane unreeling roller (31) is paved on the lamination platform (33) through the press roller assembly (32).
7. The cell lamination device according to claim 6, characterized in that the tabs after lamination of the positive plate (11) and the negative plate (21) are located on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322364548.1U CN220895581U (en) | 2023-08-31 | 2023-08-31 | Battery cell lamination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322364548.1U CN220895581U (en) | 2023-08-31 | 2023-08-31 | Battery cell lamination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895581U true CN220895581U (en) | 2024-05-03 |
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ID=90874733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322364548.1U Active CN220895581U (en) | 2023-08-31 | 2023-08-31 | Battery cell lamination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895581U (en) |
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2023
- 2023-08-31 CN CN202322364548.1U patent/CN220895581U/en active Active
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