A carrier device and stacking method for composite battery electrode units

Abstract

This invention discloses a carrier device and a stacking and transfer method for composite battery electrode units. The device includes a frame, a tray, a carrier body, and a push-telescopic column. The tray is mounted on the frame, and the push-telescopic column is mounted on the tray. The carrier body has grooves adapted to the shape of the battery electrode and through holes for the push-telescopic column to pass through. The carrier body is located above the tray. Using this invention, multi-station processes of stacking, transferring, and applying adhesive to composite electrodes can be completed, resulting in high production efficiency. It can also serve as a tooling and transfer carrier for multiple processes, reducing the number of times the composite electrode core is transferred through fixtures and lowering the risk of electrode damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery pole piece, in particular to a carrier device for stacking composite battery pole piece units and a stacking method thereof. BACKGROUND

[0002] Lithium battery is a kind of energy storage unit composed of positive and negative active materials and auxiliary materials, which is widely used in new energy vehicles, electronic equipment, backup power supply, energy storage power station and other fields. In recent years, with the continuous updating of lithium battery material system, packaging form, pole piece design and production manufacturing technology, innovative pole piece design and products have also appeared. The traditional laminated pole roll of lithium ion battery is mainly through the laminating of positive pole piece, negative pole piece and separator layer by layer, and the height alignment between different or multiple layers needs to be ensured, and there cannot be misalignment, and there are problems such as few layers of laminating, low production rate, high quality defect rate, high equipment precision requirement, etc., and it is not suitable for long pole piece and thick electrode products.

[0003] At present, the new generation of lithium battery adopts single-layer or few-layer composite pole piece unit, which reduces the number of layers of single lamination, but in the realization of stacking, fixing and transferring of multiple composite pole pieces, manual operation is mostly used, the composite pole piece is clamped and taken many times, the operation is complicated, and the quality stability is poor. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a carrier device for stacking composite battery pole piece units and a stacking method thereof, so as to achieve efficient stacking and transferring of composite pole pieces and good quality stability.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] A carrier device for stacking composite battery pole piece units, comprising a rack, a supporting plate, a carrier body and a push-pull telescopic column, the supporting plate is arranged on the rack, the push-pull telescopic column is arranged on the supporting plate, the carrier body is provided with a groove matched with the shape of the battery pole piece and a through hole for the push-pull telescopic column to pass through, and the carrier body is located above the supporting plate.

[0007] The rack is provided with a guide sliding rail, and the supporting plate is arranged on the rack and can move up and down along the guide sliding rail.

[0008] The supporting plate is provided with a rotatable rotating disc, and the push-pull telescopic column is arranged on the rotating disc.

[0009] The carrier body is provided with a translation push plate matched with the groove for carrying the battery pole piece, and the lower part of the translation push plate is in contact with the top end of the push-pull telescopic column.

[0010] The push-pull telescopic column is a lifting weighing mechanism.

[0011] The guide sliding rail is vertically arranged, the supporting plate is a horizontal supporting plate, and a bolted sliding block for positioning the supporting plate is arranged on the guide sliding rail.

[0012] An insulating layer is arranged on the upper surface of the translation push plate.

[0013] The lower part of the translation push plate is provided with an arc-shaped groove matched with the top end of the push telescopic column.

[0014] The edges of the carrier body and the translation push plate are provided with corresponding notches.

[0015] A stacking transfer method using the carrier device for stacking the composite rear battery pole piece unit, characterized by comprising the following steps:

[0016] S1, after the lithium battery composite pole piece processing is completed, it is conveyed to a stacking station, the rotating disc on the supporting plate is adjusted in position, the carrier body is grabbed by a mechanical hand through a conveying belt, and is placed on the rotating disc after the angle is adjusted; the push telescopic column is controlled by the equipment to horizontally lift the translation push plate, the composite pole piece is translated to the carrier body through the transfer mechanism, and as the number of composite pole pieces increases, the height of the translation push plate is gradually lowered, so that each composite pole piece can be horizontally transferred to the carrier.

[0017] S2, when the number of stacked pole pieces reaches the requirement, the push telescopic column is retracted to the bottom of the rotating disc, the carrier loaded with the composite pole pieces is transferred to the conveying mechanism, and is transferred to the next station for the rubber fixing and subsequent processing of the composite pole pieces.

[0018] S3, after the composite pole piece removal carrier, the carrier device is circulated to the stacking station again, and the next cycle operation is performed.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. The device can complete the stacking, transfer and rubber fixing of the composite pole piece, and has high production efficiency.

[0021] 2. The groove designed on the carrier can limit the position of the pole piece in the horizontal direction, and align the composite pole pieces of different layers. The composite pole piece does not need to be accurately aligned, so the device can simplify or cancel the traditional stacking mechanism, and reduce the equipment cost.

[0022] 3. The device can be used as a tool and transfer carrier for multiple process procedures, reduces the number of times that the pole core of the composite pole piece is transferred by a clamp, and reduces the risk of damage to the pole piece.

[0023] 4. The device can realize the horizontal transfer and layer-by-layer stacking of the composite pole piece, and is more conducive to the stacking of long pole pieces and thick electrodes compared with the traditional suction disc transfer stacking process.

[0024] 5. The integrated lifting and weighing mechanism of the device can detect the weight of the composite electrode, which is beneficial for controlling the number of stacked composite electrodes. Attached Figure Description

[0025] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0026] Figure 1 This is a schematic diagram of the device structure of the present invention.

[0027] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0028] Figure 3 This is a schematic diagram of the stacking of the present invention.

[0029] Figure 4 This is a schematic diagram of the translational pusher structure of the present invention.

[0030] Figure 5 This is a schematic diagram of the stacking and transfer of bare cells according to the present invention.

[0031] In the picture:

[0032] 1. Frame, 2. Lifting pallet, 3. Rotating disc, 4. Lifting and weighing mechanism, 5. Carrier body, 6. Composite electrode unit, 601. Battery electrode, 602. Adhesive tape, 7. Guide rail, 8. Bolting slider, 9. Pushing telescopic column, 10. Translation push plate, 11. Insulating film, 12. Cell transfer clamp. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0034] like Figures 1 to 5 As shown, the carrier device for stacking composite battery electrode units includes a frame 1, a tray, a carrier body 5, and a push-and-telescopic column 9. The tray is located on the frame, the push-and-telescopic column is located on the tray, and the carrier body has a groove adapted to the shape of the battery electrode and a through hole for the push-and-telescopic column to pass through. The carrier body is located above the tray.

[0035] The frame 1 is equipped with a guide rail 7, and the pallet is mounted on the frame and can be moved up and down along the guide rail to form a lifting pallet 2; furthermore, the guide rail is set vertically, the pallet is a horizontal pallet, and a locking slider 8 for positioning the pallet is provided on the guide rail; the height of the stacking carrier can be adjusted, and it can be transferred to the conveyor belt at different heights.

[0036] The rotating disc is arranged on the supporting plate, and the push telescopic column is arranged on the rotating disc; preferably, the rotating disc is a rotating disc 3; and the push telescopic column is a lifting weighing mechanism 4.

[0037] Preferably, the three lifting weighing mechanisms integrated on the rotating disc realize horizontal transfer and stacking of the composite electrode sheet; in addition, the integrated sensor can detect the weight of the stacked composite electrode sheet unit 6 in real time, thereby realizing control of the number of stacked electrode sheets.

[0038] The translation push plate 10 for bearing the battery electrode sheet is arranged on the carrier body and is matched with the groove; the lower part of the translation push plate is in contact with the top end of the push telescopic column; further, the lower part of the translation push plate is provided with an arc-shaped groove matched with the top end of the push telescopic column. The translation push plate is movably arranged in the interior of the stacking carrier and is used in cooperation with the lifting structure to realize adjustment of the height of the composite electrode sheet in the carrier.

[0039] The groove machined on the carrier has the same shape as the composite electrode sheet, and can realize stacking and storage and transportation of composite electrode sheets of the same size in the lithium battery electrode core production process; further, the edges of the carrier body and the translation push plate are provided with corresponding notches, which can be matched with the rubberizing tooling and the transfer clamp of the stacked composite electrode sheet, and the operation is simple.

[0040] The preferred specific examples of the present application are as follows:

[0041] The device mainly comprises:

[0042] The rack assembly is mainly used for fixing and guiding; the lifting tray can move up and down along the slide rail and can realize precise displacement control; the carrier body is used for stacking the composite electrode sheet and can realize transfer and rubberizing of the stacked electrode core;

[0043] The carrier body is connected with the lifting tray through the top conical column structure of the lifting structure, and can realize the counting function of the stacked composite electrode sheet. In addition, the rotating disc integrated on the lifting tray can realize rotation of the carrier body, so as to adjust and align the position of the composite electrode sheet in the stacking process, and adjust the direction of the carrier body after the composite electrode sheet is stacked, thereby facilitating subsequent transfer operation.

[0044] As shown in Figure 2 As shown in Figure 1 The partial mechanism is shown in an enlarged view, wherein the push telescopic column is matched with the groove at the bottom of the translation push plate through the top to realize connection of the two. In the process of stacking the composite electrode sheet, the translation push plate is moved up and down to realize horizontal transfer of the composite electrode sheet into the carrier body. The lifting weighing mechanism Figure 1 realizes online detection of the weight of the stacked composite electrode sheet, thereby avoiding multiple stacking or less stacking of the composite electrode sheet.

[0045] As shown inFigure 3 The schematic diagram of the stacking carrier shows that the composite electrode sheet unit is placed on the surface of the translation push plate and loaded into the interior of the carrier base, showing the stacking order and relative position of the three mechanisms. The carrier base is reserved with three circular through holes to realize the realization of the top push telescopic column Figure 2 The top push telescopic column can be connected with the translation push plate of Figure 2 The translation push plate of Figure 2 The stacked battery electrode sheet 601 unit is connected and fixed by the adhesive tape 602 to prevent the misplacement of the composite electrode sheet in the subsequent transfer process. The carrier base is provided with a notch at the edge to realize the extension of the adhesive mechanism and the adhesive operation of the stacked composite electrode sheet unit. When the stacked composite electrode sheet unit is transferred, the clamp of the transfer clamp is also convenient for the transfer.

[0046] As shown in Figure 4 The schematic diagram of the translation push plate shows that the translation push plate is generally made of stainless steel plate, aluminum plate or plastic plate, and an insulating film 11 is attached to the surface or an insulating material is plated to form an insulating layer on the surface of the translation push plate. The circular groove at the bottom of the translation push plate can realize the connection with other mechanisms.

[0047] As shown in Figure 5 The schematic diagram of the stacked bare cell clamping and transferring shows that the translation push plate is provided with a notch at the edge to realize the clamping and transferring of the stacked electrode core by the cell transfer clamp 12.

[0048] The stacking and transferring method using the carrier device for stacking the composite battery electrode sheet unit in the present application comprises the following steps:

[0049] S1, after the lithium battery composite electrode sheet is processed, it is conveyed to a stacking station, the rotating disc on the supporting plate is adjusted in position, the carrier body is grabbed by a mechanical hand through a conveying belt, and is placed on the rotating disc after the angle is adjusted. The equipment adjusts the height of the translation push plate by controlling the top push telescopic column, the composite electrode sheet is translated to the carrier body by the transfer mechanism, and as the number of composite electrode sheets increases, the height of the translation push plate is gradually lowered to realize that each composite electrode sheet can be horizontally transferred to the carrier.

[0050] S2, when the number of stacked electrode sheets reaches the requirement, the top push telescopic column is retracted to the bottom of the rotating disc, the carrier loaded with the composite electrode sheet is transferred to the conveying mechanism, and is transferred to the next station for the adhesive fixing of the composite electrode sheet and the subsequent processing station.

[0051] S3, after the composite electrode sheet removal carrier, the carrier device is circulated to the stacking station again for the next cycle operation.

[0052] The application can complete the process operation of the stacking, transferring and rubberizing of the composite pole piece, and has high production efficiency; the groove designed on the carrier can limit the pole piece in the horizontal direction, and align the composite pole pieces of different layers, and the composite pole piece does not need accurate alignment control, so that the device can simplify or cancel the traditional stacking mechanism, and reduce the equipment cost; the device can be used as a tool and a transfer carrier for multiple process procedures, reduce the number of times of transferring the pole core of the composite pole piece by the clamp, and reduce the risk of damage to the pole piece; the device can realize the horizontal transfer and layer-by-layer stacking of the composite pole piece, and is more conducive to the stacking of long pole pieces and thick electrodes compared with the traditional suction cup transfer and stacking process; the lifting and weighing mechanism integrated in the device can realize the weight detection of the composite pole piece, and is conducive to the control of the number of stacked composite pole pieces.

[0053] The above is only a description of the preferred embodiments of the application, and the above technical features can be combined to form multiple embodiments of the application.

[0054] The application is described above in conjunction with the drawings, and it is obvious that the specific implementation of the application is not limited by the above manner, and various non-essential improvements or direct application of the concept and technical solution of the application to other occasions without improvement are within the protection scope of the application.

Claims

1. A carrier device for a composite post-battery electrode sheet cell stack comprising a frame, characterized by: Also include a support plate, a carrier body and a push telescopic column, the support plate is arranged on the rack, the push telescopic column is arranged on the support plate, the carrier body is provided with a groove matched with the shape of the battery pole piece and a through hole for the push telescopic column to pass through, and the carrier body is located above the support plate; The support plate is provided with a rotatable rotary disc, and the push telescopic column is arranged on the rotary disc; the carrier body is provided with a translation push plate matched with the groove for carrying the battery pole piece, and the lower part of the translation push plate is in contact with the top end of the push telescopic column.

2. The carrier device for a unit stack of composite post-battery electrode sheets of claim 1, wherein: The rack is provided with a guide rail, and the support plate is arranged on the rack and can move up and down along the guide rail.

3. The carrier device for a unit stack of composite battery pole pieces of claim 1, wherein: The push telescopic column is a lifting weighing mechanism.

4. The carrier device for a unit stack of composite battery pole pieces of claim 2, wherein: The guide rail is vertically arranged, the support plate is a horizontal support plate, and a bolted sliding block for positioning the support plate is arranged on the guide rail.

5. The carrier device for a unit stack of composite battery pole pieces of claim 1, wherein: An insulating layer is arranged on the upper surface of the translation push plate.

6. The carrier device for a unit stack of composite battery pole pieces of claim 1, wherein: The lower part of the translation push plate is provided with an arc-shaped groove matched with the top end of the push telescopic column.

7. The carrier device for a unit stack of composite battery pole pieces of claim 1, wherein: The edges of the carrier body and the translation push plate are provided with corresponding notches.

8. A method for transferring a battery electrode sheet cell stack using the carrier device according to any one of claims 1 to 7, characterized by: The method comprises the following steps: S1, after the lithium battery composite pole piece is processed, it is conveyed to a stacking station, the rotary disc on the support plate is adjusted in position, the carrier body is grabbed by a mechanical hand through a conveying belt, and is placed on the rotary disc after the angle is adjusted; the equipment horizontally lifts the translation push plate by controlling the push telescopic column, the composite pole piece is translated to the carrier body through a transfer mechanism, and as the number of composite pole pieces increases, the height of the translation push plate is gradually lowered, so that each composite pole piece can be horizontally transferred to the carrier body; S2, when the number of stacked pole pieces reaches the requirement, the push telescopic column is retracted to the bottom of the rotary disc, the carrier loaded with the composite pole pieces is transferred to a conveying mechanism and is transferred to the next station for rubber fixing and subsequent processing of the composite pole pieces; S3, after the composite pole piece is removed from the carrier, the carrier device is circulated to the stacking station again for the next cycle operation.

Images