CN220821651U - Pole piece positioning device and battery core lamination equipment - Google Patents
Pole piece positioning device and battery core lamination equipment Download PDFInfo
- Publication number
- CN220821651U CN220821651U CN202322111731.0U CN202322111731U CN220821651U CN 220821651 U CN220821651 U CN 220821651U CN 202322111731 U CN202322111731 U CN 202322111731U CN 220821651 U CN220821651 U CN 220821651U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- controller
- positioning device
- feeding mechanism
- pole
- 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
- 238000003475 lamination Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 238000013329 compounding Methods 0.000 claims description 34
- 239000002131 composite material Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052744 lithium Inorganic materials 0.000 abstract description 12
- 238000001556 precipitation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a pole piece positioning device and battery core lamination equipment, and relates to the technical field of lithium batteries. The pole piece positioning device comprises a frame, a guide roller, a feeding mechanism, an optical fiber sensor and a controller. The guide roller, the feeding mechanism and the optical fiber sensor are all installed on the frame, the feeding mechanism is used for conveying a plurality of second pole pieces to the outside of the diaphragm in sequence, the optical fiber sensor is electrically connected with the controller, the optical fiber sensor is used for detecting the actual distance between two adjacent first pole pieces in the pole piece material belt and sending the actual distance to the controller, the controller is electrically connected with the feeding mechanism, and the controller is used for controlling the feeding speed of the feeding mechanism according to the actual distance so as to ensure that the central position of each second pole piece is aligned with the central position of a corresponding first pole piece. The pole piece positioning device provided by the utility model can ensure the alignment precision of the first pole piece and the second pole piece, avoid the occurrence of the phenomenon of negative electrode lithium precipitation, reduce the rejection rate, improve the production efficiency of the battery cell and reduce the production cost of the battery cell.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a pole piece positioning device and battery core lamination equipment.
Background
At present, the lamination cell thermal compounding process generally comprises the steps of firstly arranging negative plates between two layers of diaphragms at equal intervals in sequence to carry out thermal compounding, and then compounding positive plates on two outer sides of the two layers of diaphragms alternately in sequence. Generally, the feeding speed of the negative electrode plate is the same as that of the positive electrode plate, so that the negative electrode plate and the positive electrode plate can be aligned, but in the actual production process, the distance between two adjacent negative electrode plates is not necessarily equal due to certain errors in machine conveying, in this case, if the positive electrode plate is fed at the original feeding speed, dislocation occurs between the positive electrode plate and the negative electrode plate, when the dislocation value exceeds a preset threshold value, the negative electrode lithium precipitation phenomenon is caused, so that the cell is scrapped, the production efficiency of the battery cell is reduced, and the production cost of the battery cell is increased.
In view of the above, it is important to design and manufacture a pole piece positioning device with high alignment precision and a battery cell lamination device, especially in lithium battery production.
Disclosure of utility model
The utility model aims to provide a pole piece positioning device which can ensure the alignment precision of a first pole piece and a second pole piece, avoid the occurrence of a negative electrode lithium precipitation phenomenon, reduce the rejection rate, improve the production efficiency of a battery cell and reduce the production cost of the battery cell.
The utility model further aims to provide the battery cell lamination equipment, which can ensure the alignment precision of the first pole piece and the second pole piece, avoid the occurrence of negative electrode lithium precipitation, reduce the rejection rate, improve the production efficiency of the battery cell and reduce the production cost of the battery cell.
The utility model is realized by adopting the following technical scheme.
The utility model provides a pole piece positioner, be applied to the pole piece material area, the pole piece material area includes a plurality of first pole pieces and two-layer diaphragm, a plurality of first pole piece interval sets up, and all compound between two-layer diaphragm, pole piece positioner includes the frame, the guide roll, feeding mechanism, fiber sensor and controller, the guide roll, feeding mechanism and fiber sensor all install in the frame, the guide roll is used for leading the direction of advancing tape of pole piece material area, feeding mechanism is used for transporting a plurality of second pole pieces outside the diaphragm in proper order, fiber sensor is connected with the controller electricity, fiber sensor is arranged in detecting the actual interval of adjacent two first pole pieces in the pole piece material area, and send it to the controller, the controller is connected with feeding mechanism electricity. The controller is used for controlling the feeding speed of the feeding mechanism according to the actual distance so as to ensure that the central position of each second pole piece is aligned with the central position of a corresponding first pole piece.
Optionally, the optical fiber sensor comprises a transmitting end and a receiving end, the transmitting end and the receiving end are oppositely arranged at two sides of the pole piece material belt and are electrically connected with the controller, and the transmitting end is used for transmitting the sensing light which can penetrate through the diaphragm but cannot penetrate through the first pole piece towards the receiving end. The controller is used for calculating the actual distance according to the length of time for receiving the sensing light and the tape speed of the pole piece material tape.
Optionally, the connection line between the transmitting end and the receiving end is perpendicular to the plane where the pole piece material belt is located.
Optionally, the emitting end is a light emitting end.
Optionally, the number of the feeding mechanisms is two, the two feeding mechanisms are oppositely arranged at two sides of the pole piece material belt, and the two feeding mechanisms are used for conveying the second pole pieces out of the two layers of diaphragms alternately in sequence.
Optionally, feeding mechanism includes linear motor, carries the platform, cutter subassembly and clamping assembly, and linear motor installs in the frame, and is connected with carrying the platform, and cutter subassembly and clamping assembly all install in carrying the bench, and linear motor is used for driving cutter subassembly and clamping assembly motion through carrying the platform synchronization, and cutter subassembly is used for cutting off second pole piece material area to obtain the second pole piece, clamping assembly is used for centre gripping or loosens the second pole piece.
Optionally, the pole piece positioning device further comprises a visual camera, the visual camera is electrically connected with the controller, and the visual camera is used for rechecking whether the center position of the second pole piece is aligned with the center position of the first pole piece, and sending the generated rechecking information to the controller.
Optionally, the pole piece positioning device further comprises a first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are arranged side by side and are rotatably arranged on the frame, and the first feeding roller and the second feeding roller are jointly used for pressing and adhering the second pole piece to the outside of the diaphragm.
Optionally, the pole piece positioning device further comprises a first thermal compounding roller and a second thermal compounding roller, the first thermal compounding roller and the second thermal compounding roller are arranged side by side and are rotatably mounted on the frame, and the first thermal compounding roller and the second thermal compounding roller are jointly used for thermal compounding of the second pole piece and the pole piece material belt so as to obtain a composite material belt.
The utility model provides an electricity core lamination equipment, including foretell pole piece positioner, this pole piece positioner includes the frame, the guide roll, feeding mechanism, optical fiber sensor and controller, the guide roll, feeding mechanism and optical fiber sensor are all installed in the frame, the guide roll is used for leading the direction of advancing of pole piece material area, feeding mechanism is used for transporting a plurality of second pole pieces outside the diaphragm in proper order, optical fiber sensor is connected with the controller electricity, optical fiber sensor is used for detecting the actual interval of two adjacent first pole pieces in the pole piece material area, and send it to the controller, the controller is connected with feeding mechanism electricity, the controller is used for according to actual interval control feeding mechanism's feeding speed, in order to guarantee that the central point of every second pole piece aligns with the central point of a corresponding first pole piece.
The pole piece positioning device and the battery cell lamination equipment provided by the utility model have the following beneficial effects:
The utility model provides a pole piece positioning device, which is characterized in that a guide roller, a feeding mechanism and an optical fiber sensor are all arranged on a frame, the guide roller is used for guiding the tape moving direction of a pole piece material tape, the feeding mechanism is used for sequentially conveying a plurality of second pole pieces out of a diaphragm, the optical fiber sensor is electrically connected with a controller, the optical fiber sensor is used for detecting the actual distance between two adjacent first pole pieces in the pole piece material tape and sending the actual distance to the controller, the controller is electrically connected with the feeding mechanism, and the controller is used for controlling the feeding speed of the feeding mechanism according to the actual distance so as to ensure that the central position of each second pole piece is aligned with the central position of a corresponding first pole piece. Compared with the prior art, the pole piece positioning device provided by the utility model has the advantages that the optical fiber sensor electrically connected with the controller and the feeding mechanism arranged on the rack are adopted, so that the alignment precision of the first pole piece and the second pole piece can be ensured, the phenomenon of negative pole lithium precipitation is avoided, the rejection rate is reduced, the production efficiency of the battery cell is improved, and the production cost of the battery cell is reduced.
The battery cell lamination equipment provided by the utility model comprises the pole piece positioning device, so that the alignment precision of the first pole piece and the second pole piece can be ensured, the phenomenon of negative electrode lithium precipitation is avoided, the rejection rate is reduced, the production efficiency of the battery cell is improved, and the production cost of the battery cell is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a pole piece positioning device according to an embodiment of the present utility model;
FIG. 2 is a block diagram of a pole piece positioning device according to an embodiment of the present utility model;
FIG. 3 is a perspective view of an optical fiber sensor detecting an actual distance in a pole piece positioning device according to an embodiment of the present utility model;
Fig. 4 is a schematic structural diagram of a composite material belt formed by compounding a pole piece positioning device according to an embodiment of the present utility model.
Icon: 100-a pole piece positioning device; 110-guiding rollers; 120-a feeding mechanism; 121-a linear motor; 122-a conveying table; 123-a cutter assembly; 124-a clamping assembly; 130-a fiber optic sensor; 131-transmitting end; 132—a receiving end; 140-a controller; 150-a vision camera; 160-a first feeding roller; 170-a second feeding roller; 180-a first thermal compound roll; 190-a second thermal compound roll; 200-a composite material belt; 210-pole piece material belt; 211-a first pole piece; 212-a membrane; 220-a second pole piece.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "upper", "lower", "horizontal", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.
Referring to fig. 1 to 4 in combination, an embodiment of the present utility model provides a cell lamination apparatus (not shown) for producing a cell. The alignment precision of the first pole piece 211 and the second pole piece 220 can be ensured, the phenomenon of negative electrode lithium precipitation is avoided, the rejection rate is reduced, the production efficiency of the battery cell is improved, and the production cost of the battery cell is reduced.
It should be noted that the cell lamination apparatus is applied to the production and processing of the cells, and the cell lamination apparatus includes a preliminary composite device (not shown), a pole piece positioning device 100, and a lamination device (not shown) that are sequentially disposed. The preliminary compounding device is used for preliminarily compounding the plurality of first pole pieces 211 and the two layers of diaphragms 212 to obtain a pole piece material belt 210, wherein the plurality of first pole pieces 211 are arranged at intervals and are compounded between the two layers of diaphragms 212; the pole piece positioning device 100 is configured to perform secondary compounding on the pole piece material belt 210 and a plurality of second pole pieces 220 to obtain a composite material belt 200, where the plurality of second pole pieces 220 are sequentially and alternately disposed on two sides of the pole piece material belt 210, and each second pole piece 220 is aligned with one first pole piece 211; the lamination device is used to zigzag fold the composite strip 200 to obtain the cells.
In this embodiment, the first electrode piece 211 is a negative electrode piece, and the second electrode piece 220 is a positive electrode piece, but the present invention is not limited thereto, and in other embodiments, the first electrode piece 211 may be a positive electrode piece, and the second electrode piece 220 is a negative electrode piece, and the types of the first electrode piece 211 and the second electrode piece 220 are not particularly limited.
The pole piece positioning device 100 includes a frame (not shown), a guide roller 110, a feeding mechanism 120, an optical fiber sensor 130, a controller 140, a vision camera 150, a first feed roller 160, a second feed roller 170, a first thermal compound roller 180, and a second thermal compound roller 190. Wherein, the guide roller 110, the feeding mechanism 120 and the optical fiber sensor 130 are all installed on the frame, the guide roller 110 is used for guiding the tape running direction of the pole piece material tape 210 so as to ensure the tape running stability of the pole piece material tape 210, and the feeding mechanism 120 is used for sequentially conveying a plurality of second pole pieces 220 to the outside of the diaphragm 212 so that the second pole pieces 220 are arranged outside the pole piece material tape 210 in the tape running process of the pole piece material tape 210, thereby improving the composite efficiency. Specifically, the optical fiber sensor 130 is electrically connected to the controller 140, the optical fiber sensor 130 is configured to detect an actual distance between two adjacent first pole pieces 211 in the pole piece material belt 210 and send the actual distance to the controller 140, the controller 140 is electrically connected to the feeding mechanism 120, and the controller 140 is configured to control a feeding speed of the feeding mechanism 120 according to the actual distance, so as to ensure that a central position of each second pole piece 220 is aligned with a central position of a corresponding first pole piece 211, thereby improving alignment accuracy of the first pole piece 211 and the second pole piece 220, avoiding occurrence of a negative electrode lithium precipitation phenomenon, reducing rejection rate, improving production efficiency of the battery cell, and reducing production cost of the battery cell.
It should be noted that the first feeding roller 160 and the second feeding roller 170 are disposed side by side and are rotatably mounted on the frame, the pole piece material belt 210 passes between the first feeding roller 160 and the second feeding roller 170, and the first feeding roller 160 and the second feeding roller 170 are used for laminating and adhering the second pole piece 220 outside the diaphragm 212 of the pole piece material belt 210, so as to primarily fix the relative position of the second pole piece 220 and the pole piece material belt 210.
Further, the first thermal compounding roller 180 and the second thermal compounding roller 190 are arranged side by side and are both rotatably installed on the frame, the pole piece material belt 210 and the second pole piece 220 adhered outside the pole piece material belt 210 pass through between the first thermal compounding roller 180 and the second thermal compounding roller 190, and the first thermal compounding roller 180 and the second thermal compounding roller 190 are jointly used for thermally compounding the second pole piece 220 and the pole piece material belt 210 so as to fix the relative positions of the second pole piece 220 and the pole piece material belt 210 again and obtain the composite material belt 200.
In this embodiment, the first thermal compounding roller 180 and the second thermal compounding roller 190 are power sources for feeding the pole piece material belt 210, that is, the first thermal compounding roller 180 and the second thermal compounding roller 190 drive the pole piece material belt 210 to feed at a certain speed while performing thermal compounding, and in this process, the guiding roller 110 guides the feeding direction of the pole piece material belt 210 to ensure the feeding stability of the pole piece material belt 210.
In this embodiment, the vision camera 150 is electrically connected to the controller 140, and the vision camera 150 is configured to perform a recheck on the composite material tape 200 to detect whether the center position of the second pole piece 220 is aligned with the center position of the first pole piece 211, and send the generated recheck information to the controller 140, where the controller 140 is configured to determine whether the corresponding unit piece (formed by combining the second pole piece 220, the first pole piece 211 and the diaphragm 212) in the composite material tape 200 is qualified according to the recheck information. Specifically, if the dislocation value between the center position of the second pole piece 220 and the center position of the first pole piece 211 is smaller than the preset threshold, the corresponding unit piece in the composite material belt 200 is judged to be qualified, and the lamination requirement is met; if the misalignment value between the center position of the second pole piece 220 and the center position of the first pole piece 211 is greater than or equal to the preset threshold, the corresponding unit piece in the composite material tape 200 is judged to be unqualified, and is marked as a waste product.
The fiber optic sensor 130 includes a transmitting end 131 and a receiving end 132. The transmitting end 131 and the receiving end 132 are oppositely disposed at two sides of the pole piece material belt 210 and are electrically connected to the controller 140, the transmitting end 131 is configured to transmit the sensing light which can penetrate the diaphragm 212 and cannot penetrate the first pole piece 211 toward the receiving end 132, and the controller 140 is configured to calculate the actual distance according to the duration of the receiving end 132 receiving the sensing light and the tape running speed of the pole piece material belt 210. Specifically, during the tape running process of the pole piece material tape 210, the transmitting end 131 continuously transmits the sensing light; when the first pole piece 211 of the pole piece material belt 210 moves to the irradiation position of the sensing light, the first pole piece 211 blocks the sensing light, and the receiving end 132 cannot receive the sensing light at this time; when the first pole piece 211 of the pole piece material belt 210 leaves the irradiation position of the sensing light, the first pole piece 211 no longer blocks the sensing light, and the receiving end 132 can receive the sensing light; therefore, the actual distance between two adjacent first pole pieces 211 in the pole piece material belt 210 is equal to the product of the time that the receiving end 132 receives the sensing light and the tape running speed of the pole piece material belt 210, and the accuracy of the actual distance calculated by the method is high, so that the alignment accuracy of the first pole pieces 211 and the second pole pieces 220 can be ensured.
It should be noted that, the connection line between the transmitting end 131 and the receiving end 132 is perpendicular to the plane of the pole piece material belt 210, that is, the sensing light emitted by the transmitting end 131 can irradiate on the pole piece material belt 210 along the direction perpendicular to the pole piece material belt 210, and pass through the pole piece material belt 210 to irradiate on the receiving end 132 under the condition that the first pole piece 211 of the pole piece material belt 210 does not block the sensing light. In this way, the accuracy of the actual pitch calculation result can be improved, and the alignment accuracy of the first pole piece 211 and the second pole piece 220 can be further ensured.
In this embodiment, the transmitting end 131 and the receiving end 132 are both located at the middle position of the pole piece material belt 210 in the width direction, the transmitting end 131 is a light transmitting end, that is, the sensing light emitted by the transmitting end 131 is in a straight line, and the straight line is perpendicular to the plane of the pole piece material belt 210. However, in other embodiments, the emitting end 131 may be a light curtain emitting end, that is, the light curtain emitting end 131 emits the sensing light in a light curtain shape, and the plane of the light curtain is perpendicular to the plane of the pole piece material belt 210, so that whether the first pole piece 211 in the pole piece material belt 210 is inclined or not can be detected, and the type of the emitting end 131 is not particularly limited.
It should be noted that the number of the feeding mechanisms 120 is two, the two feeding mechanisms 120 are disposed at two opposite sides of the pole piece material belt 210, the two feeding mechanisms 120 are used for sequentially and alternately conveying the second pole pieces 220 to the outside of the two-layer membrane 212, so that the plurality of second pole pieces 220 are sequentially and alternately disposed at two sides of the pole piece material belt 210, and each second pole piece 220 is aligned with one first pole piece 211, so that the composite material belt 200 is obtained by subsequent compounding.
The feed mechanism 120 includes a linear motor 121, a feed table 122, a cutter assembly 123, and a clamp assembly 124. The linear motor 121 is installed on the frame and connected with the conveying table 122, the cutter assembly 123 and the clamping assembly 124 are both installed on the conveying table 122, and the linear motor 121 is used for synchronously driving the cutter assembly 123 and the clamping assembly 124 to move through the conveying table 122. Specifically, the second pole piece material belt sequentially passes through the cutter assembly 123 and the clamping assembly 124, the travelling direction of the second pole piece material belt is the same as the conveying direction of the linear motor 121, the cutter assembly 123 is used for cutting the second pole piece material belt to obtain the second pole piece 220, and the clamping assembly 124 is used for clamping or unclamping the second pole piece 220 to place the second pole piece 220 on the pole piece material belt 210.
Further, during the feeding process of the second pole piece 220, the second pole piece material belt is controlled to be carried away, when the second pole piece material belt is carried away to a certain length, the free end of the second pole piece material belt is cut off by the cutter assembly 123 to obtain a second pole piece 220 with a preset size, and the second pole piece 220 is clamped and fixed by the clamping assembly 124; then, the cutter assembly 123 and the clamping assembly 124 are driven by the linear motor 121 to move towards the direction approaching to the pole piece material belt 210 through the conveying table 122, and the second pole piece 220 is loosened by the clamping assembly 124 so as to place the second pole piece 220 on the pole piece material belt 210, in the process, the controller 140 controls the conveying speed of the linear motor 121 according to the actual distance, so that the conveying speed of the whole conveying mechanism 120 is controlled, and the alignment precision of the first pole piece 211 and the second pole piece 220 is ensured.
According to the pole piece positioning device 100 provided by the embodiment of the utility model, the guide roller 110, the feeding mechanism 120 and the optical fiber sensor 130 are all arranged on the frame, the guide roller 110 is used for guiding the tape feeding direction of the pole piece material tape 210, the feeding mechanism 120 is used for sequentially conveying a plurality of second pole pieces 220 to the outside of the diaphragm 212, the optical fiber sensor 130 is electrically connected with the controller 140, the optical fiber sensor 130 is used for detecting the actual distance between two adjacent first pole pieces 211 in the pole piece material tape 210 and sending the actual distance to the controller 140, the controller 140 is electrically connected with the feeding mechanism 120, and the controller 140 is used for controlling the feeding speed of the feeding mechanism 120 according to the actual distance so as to ensure that the central position of each second pole piece 220 is aligned with the central position of a corresponding first pole piece 211. Compared with the prior art, the pole piece positioning device 100 provided by the utility model has the advantages that the optical fiber sensor 130 electrically connected with the controller 140 and the feeding mechanism 120 arranged on the rack are adopted, so that the alignment precision of the first pole piece 211 and the second pole piece 220 can be ensured, the phenomenon of negative pole lithium precipitation is avoided, the rejection rate is reduced, the production efficiency of the battery cell is improved, and the production cost of the battery cell is reduced. The production efficiency of the battery cell lamination equipment is high, and the product quality is good.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a pole piece positioner, is applied to pole piece material area, pole piece material area includes a plurality of first pole pieces and two-layer diaphragm, and a plurality of first pole piece interval sets up, and all compounds in two-layer between the diaphragm, its characterized in that, pole piece positioner includes frame, guide roll, feeding mechanism, optical fiber sensor and controller, the guide roll feeding mechanism with optical fiber sensor all install in the frame, the guide roll is used for right the direction of tape running of pole piece material area is led, feeding mechanism is used for transporting a plurality of second pole pieces in proper order outside the diaphragm, optical fiber sensor with the controller electricity is connected, optical fiber sensor is used for detecting the actual interval of two adjacent first pole pieces in the pole piece material area, and sends it for the controller, the controller with feeding mechanism electricity is connected.
2. The pole piece positioning device according to claim 1, wherein the optical fiber sensor comprises a transmitting end and a receiving end, the transmitting end and the receiving end are oppositely arranged at two sides of the pole piece material belt and are electrically connected with the controller, and the transmitting end is used for transmitting sensing light which can penetrate through the diaphragm but cannot penetrate through the first pole piece towards the receiving end.
3. The pole piece positioning device of claim 2, wherein the line connecting the transmitting end and the receiving end is perpendicular to the plane of the pole piece material strip.
4. The pole piece positioning device of claim 2, wherein the emitting end is a light emitting end.
5. The pole piece positioning device according to claim 1, wherein the number of the feeding mechanisms is two, the two feeding mechanisms are oppositely arranged at two sides of the pole piece material belt, and the two feeding mechanisms are used for sequentially and alternately conveying the second pole piece to the outside of the two layers of the diaphragms.
6. The pole piece positioning device according to claim 1, wherein the feeding mechanism comprises a linear motor, a conveying table, a cutter assembly and a clamping assembly, the linear motor is mounted on the frame and connected with the conveying table, the cutter assembly and the clamping assembly are both mounted on the conveying table, the linear motor is used for synchronously driving the cutter assembly and the clamping assembly to move through the conveying table, the cutter assembly is used for cutting off a second pole piece material belt to obtain the second pole piece, and the clamping assembly is used for clamping or loosening the second pole piece.
7. The pole piece positioning device of claim 1, further comprising a vision camera electrically connected to the controller, the vision camera configured to recheck whether the center position of the second pole piece is aligned with the center position of the first pole piece and send the generated recheck information to the controller.
8. The pole piece positioning device of claim 1, further comprising a first feed roller and a second feed roller, the first feed roller and the second feed roller being disposed side-by-side and both rotatably mounted on the frame, the first feed roller and the second feed roller being used together to compress and adhere the second pole piece to the outside of the diaphragm.
9. The pole piece positioning device of claim 1, further comprising a first thermal compounding roller and a second thermal compounding roller, the first thermal compounding roller and the second thermal compounding roller being disposed side-by-side and both rotatably mounted on the frame, the first thermal compounding roller and the second thermal compounding roller being used together for thermally compounding the second pole piece and the pole piece strip to obtain a composite strip.
10. A cell lamination apparatus comprising a pole piece positioning device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111731.0U CN220821651U (en) | 2023-08-07 | 2023-08-07 | Pole piece positioning device and battery core lamination equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322111731.0U CN220821651U (en) | 2023-08-07 | 2023-08-07 | Pole piece positioning device and battery core lamination equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821651U true CN220821651U (en) | 2024-04-19 |
Family
ID=90679209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322111731.0U Active CN220821651U (en) | 2023-08-07 | 2023-08-07 | Pole piece positioning device and battery core lamination equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821651U (en) |
-
2023
- 2023-08-07 CN CN202322111731.0U patent/CN220821651U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106077973B (en) | A kind of lug molding cutting apparatus | |
| EP3826085B1 (en) | Secondary battery electrode production system | |
| US20020007552A1 (en) | Apparatus and method of manufacturing a battery cell | |
| KR102563440B1 (en) | Cutting device and method of mea for fuel cell | |
| CN214263465U (en) | Pole piece die cutting equipment | |
| CN219040584U (en) | Ultrasonic bag making machine for lithium battery | |
| CN220821651U (en) | Pole piece positioning device and battery core lamination equipment | |
| CN208142288U (en) | A kind of full-automatic battery electricity core winding machine | |
| CN213618869U (en) | Compound equipment | |
| CN202071402U (en) | Automatic fusion machine of high frequency for liquid bag | |
| CN113002064B (en) | Processing technology of packaging bag with interlayer | |
| CN211062806U (en) | Cutting device | |
| CN212101225U (en) | Pole piece deviation rectifying and feeding device of synchronous winding type winding machine | |
| CN210282543U (en) | Sheet cuts transport mechanism, lithium electric capacity manufacture equipment | |
| CN113102898A (en) | Laser marking machine of accurate blowing | |
| CN220914312U (en) | Pole piece unit processingequipment and lamination system | |
| CN216155156U (en) | Automatic add barrier paper mechanism | |
| CN115911278B (en) | Lithium battery pole piece flaking system | |
| CN220050223U (en) | Roller cutter slitting module and slitting module thereof | |
| CN215238679U (en) | Plate conveying and cutting workbench | |
| CN216182964U (en) | Automatic forming device for light guide plate | |
| CN217861672U (en) | High-precision intelligent die cutting equipment | |
| CN214724874U (en) | Digital die-cutting machine | |
| CN212245595U (en) | Diaphragm splitting machine | |
| CN215280410U (en) | Marking platform of accurate blowing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |