Laminated cell pole piece dust removal device

Abstract

The utility model provides a dust removal device for a pole piece of a laminated cell, belongs to the technical field of dust removal equipment for the pole piece of the laminated cell, and solves the technical problem of dust removal of the pole piece in the whole process in the existing laminated cell assembly process. The dust removal device for the laminated cell pole pieces comprises a material box used for containing the pole pieces, a piece carrying table is arranged in the material box, and a negative pressure dust collection channel structure communicated with a material inlet and a material outlet of the material box is arranged on the material box. The negative pressure dust collection channel structure is externally connected with a negative pressure generation assembly, when pole pieces are fed, the pole pieces are placed on the piece carrying table from the feeding and discharging opening of the material box through the suction cup, and in the process, dust generated by friction between the pole pieces and the material box can be discharged through the negative pressure dust collection channel structure, so that it is guaranteed that the surfaces of the pole pieces are kept in a dust-free state in the lamination process; the risk of short circuit in the battery cell is reduced, and the battery cell yield is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal equipment for laminated battery core pole pieces and relates to a dust removal device for laminated battery core pole pieces. Background Art

[0002] With the increasing consumption of fossil energy and increasingly serious environmental problems, the country has put forward the requirements of carbon peak and carbon neutrality. Lithium-ion batteries have emerged as a new form of energy storage. In recent years, with the increase in research and development efforts, scientific researchers have conducted more in-depth research on batteries, and the technology has become more mature. Therefore, the control of the production process of lithium-ion batteries has been continuously strengthened.

[0003] Compared with wound structure cells, laminated structure cells have lower internal resistance, higher energy density, and the shape of the pole piece can be designed according to the needs. However, the production process of laminated cells is cumbersome, and the production process requires cutting many small pieces. Each cutting will inevitably produce burrs and the risk of falling materials, which poses a great hidden danger to battery safety. In the prior art, a brush is generally used in conjunction with a clamp to remove dust from the battery pole piece to achieve the purpose of dust removal.

[0004] However, during the assembly process of the battery cell, the electrode is transferred from the feed position to the stacking table by the suction cup. In this process, the electrode is very likely to come into contact and rub against the edge of the feed position. However, how to remove the powder generated by friction in this process is not involved in the prior art. In order to remove the powder dropped in this process, this patent provides a dust removal device.

[0005] For example, a Chinese patent discloses a lithium battery stacked cell electrode dust removal device [application number: 202221900483.7], which includes a dust removal structure and a conveyor belt; one side of the dust removal structure is an open dust removal box, and the other side of the dust removal box is provided with a positive pressure ion wind inlet connected to an external pipe, and negative pressure dust removal outlets are provided at both ends of the dust removal box; this patent performs dust removal during the transmission process after the electrode is cut, but it still cannot solve the dust generated again by friction during the assembly of the electrode. Utility Model Content

[0006] The utility model aims to solve the above problems and provides a dust removal device for laminated battery core pole pieces.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A device for removing dust from laminated battery core electrodes comprises a material box for placing electrodes, a wafer carrier is arranged in the material box, and a negative pressure dust suction channel structure connected with an inlet and outlet of the material box is arranged on the material box.

[0009] In the above-mentioned stacked battery cell electrode sheet dust removal device, the negative pressure dust suction channel structure includes an exhaust channel connected to the negative pressure generating component and a plurality of dust suction channels, the outer end of the dust suction channel is located on the side wall of the material box and the inner end is connected to the exhaust channel.

[0010] In the above-mentioned stacked battery cell electrode dust removal device, the material box is also provided with a positive pressure channel structure for introducing positive pressure ion wind into the material box, the positive pressure channel structure and the negative pressure dust suction channel structure have the same structure and the positive pressure channel structure and the negative pressure dust suction channel structure are relatively arranged on both sides of the material box.

[0011] In the above-mentioned laminated battery cell electrode sheet dust removal device, the material box is formed by a combination of a left plate and a right plate, and the positive pressure channel structure and the negative pressure dust suction channel structure are respectively arranged on the left plate and the right plate.

[0012] In the above-mentioned stacked battery cell electrode dust removal device, the wafer carrier is slidably matched with the left side plate and the right side plate through a sliding guide structure.

[0013] In the above-mentioned stacked battery cell electrode dust removal device, two T-shaped slide rails are respectively arranged on both sides of the wafer carrier, and the T-shaped slide rails are inserted into the T-shaped slide groove at the bottom of the left plate or the right plate.

[0014] In the above-mentioned laminated battery core electrode sheet dust removal device, it also includes a base, and two translation components respectively connected to the left plate and the right plate are symmetrically arranged on the base.

[0015] In the above-mentioned laminated battery core electrode dust removal device, the translation assembly includes a translation driver fixed on a driver mounting seat, and the output shaft end of the translation driver is detachably connected to the left side plate or the right side plate.

[0016] In the above-mentioned laminated battery core electrode dust removal device, a top plate is fixed on the base through a bracket, and a electrode feeding mechanism is arranged on the top plate.

[0017] In the above-mentioned stacked battery cell electrode dust removal device, the electrode feeding mechanism includes a slide rail seat fixed on the top plate, a translation seat and a threaded drive rod screwed to the translation seat are slidably connected to the slide rail seat, a motor connected to the threaded drive rod is also provided on one side of the slide rail seat, a lifting drive is fixedly connected to the top of the translation seat, the output shaft of the lifting drive passes through the translation seat and is fixedly connected to the lifting seat, a suction cup is provided at the bottom of the lifting seat, and two limit rods are fixedly connected to the lifting seat that vertically pass through the translation seat and are slidably connected to the translation seat.

[0018] Compared with the existing technology, the advantages of the utility model are:

[0019] 1. The negative pressure suction channel structure is connected to an external negative pressure generating component. When the electrode is loaded, the electrode is placed from the inlet and outlet of the material box to the wafer carrier through the suction cup. During this process, the dust generated by the friction between the electrode and the material box can be discharged through the negative pressure suction channel structure to ensure that the surface of the electrode remains dust-free during the stacking process, thereby reducing the risk of short circuit in the battery cell and improving the battery cell yield.

[0020] 2. The negative pressure generating component is connected to the exhaust channel through a hose. The negative pressure generating component can suck out the gas in the exhaust channel to form a negative pressure in the exhaust channel and the dust suction channel. The dust generated during assembly can be sucked out through the negative pressure.

[0021] 3. The T-shaped slide rail and the T-shaped slide groove arranged at the bottom of the side plate and the right side plate can make the left plate, the right plate and the wafer carrier form a whole. When assembling the pole piece, the left plate and the right side plate can be translated outward to increase the space between the left plate and the right side plate to reduce the probability of friction between the pole piece and the material box.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view of the material box;

[0024] Figure 2 It is a three-dimensional image of the right side panel;

[0025] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0026] In the figure, there are a material box 1, a wafer carrier 2, a negative pressure suction channel structure 3, an exhaust channel 4, a suction channel 5, a positive pressure channel structure 6, a left side plate 7, a right side plate 8, a T-shaped slide rail 9, a T-shaped slide groove 10, a base 11, a driver mounting seat 12, a translation driver 13, a top plate 14, a slide rail seat 15, a translation seat 16, a threaded drive rod 17, a lifting driver 18, a lifting seat 19, a suction cup 20, and a limit rod 21. DETAILED DESCRIPTION

[0027] Embodiment 1: Figure 1-3 As shown, a stacked battery cell electrode dust removal device includes a material box 1 for placing the electrode, a wafer carrier 2 is arranged in the material box 1, and a negative pressure dust suction channel structure 3 connected with the inlet and outlet of the material box 1 is arranged on the material box 1.

[0028] In the utility model, the negative pressure suction channel structure 3 is externally connected to a negative pressure generating component. When the electrode is loaded, the electrode is placed from the inlet and outlet of the material box to the wafer carrier through a suction cup. In this process, the dust generated by the friction between the electrode and the material box can be discharged through the negative pressure suction channel structure 3 to ensure that the surface of the electrode remains dust-free during the stacking process, thereby reducing the risk of short circuit in the battery cell and improving the battery cell yield.

[0029] Specifically, the negative pressure dust suction channel structure 3 includes an exhaust channel 4 connected to a negative pressure generating component and a plurality of dust suction channels 5, wherein the outer end of the dust suction channel 5 is located on the side wall of the material box 1 and the inner end is connected to the exhaust channel 4. The negative pressure generating component is connected to the exhaust channel through a hose, and the negative pressure generating component can suck out the gas in the exhaust channel to form a negative pressure in the exhaust channel and the dust suction channel, and the dust generated during assembly can be sucked out by the negative pressure.

[0030] Those skilled in the art should understand that the negative pressure generating component may be a vacuum pump or the like.

[0031] Embodiment 2: Preferably, the material box 1 is further provided with a positive pressure channel structure 6 for introducing positive pressure ion wind into the material box 1, and the positive pressure channel structure 6 has the same structure as the negative pressure dust suction channel structure 3, and the positive pressure channel structure 6 and the negative pressure dust suction channel structure 3 are arranged oppositely on both sides of the material box 1. While performing negative pressure dust suction, positive ion wind can be introduced into the material box through the positive pressure channel structure 6 arranged oppositely to the negative pressure dust suction channel structure 3, thereby accelerating dust discharge.

[0032] Specifically, combined with Figure 1 and Figure 2 The material box 1 is formed by a left side plate 7 and a right side plate 8, and the positive pressure channel structure 6 and the negative pressure dust suction channel structure 3 are respectively arranged on the left side plate 7 and the right side plate 8.

[0033] Embodiment 3: Specifically, the wafer stage 2 is slidably matched with the left side plate 7 and the right side plate 8 through a sliding guide structure, and two T-shaped slide rails 9 are provided on both sides of the wafer stage 2, and the T-shaped slide rails 9 are inserted into the T-shaped slide grooves 10 at the bottom of the left side plate 7 or the right side plate 8. The T-shaped slide rails 9 and the T-shaped slide grooves provided at the bottom of the side plate 7 and the right side plate 8 can form the left side plate, the right side plate and the wafer stage into a whole. When assembling the pole piece, the left side plate and the right side plate can be translated outward to increase the space between the left side plate and the right side plate, so as to reduce the probability of friction between the pole piece and the material box.

[0034] Embodiment 4: In this embodiment, a base 11 is further included. Two translation assemblies connected to the left side plate 7 and the right side plate 8 are symmetrically arranged on the base 11. The translation assembly includes a translation driver 13 fixed to the driver mounting seat 12. The output shaft end of the translation driver 13 is detachably connected to the left side plate 7 or the right side plate 8. The translation driver can drive the left side plate and the right side plate to move horizontally, so that the left side plate and the right side plate can be close to or away from the slide stage.

[0035] Those skilled in the art should understand that the translation driver may be an oil cylinder, an air cylinder or a linear motor, etc.

[0036] Embodiment 5: In this embodiment, a top plate 14 is fixed to the base 11 through a bracket, and a pole piece feeding mechanism is arranged on the top plate 14, and the pole piece feeding mechanism includes a slide rail seat 15 fixed on the top plate 14, and a translation seat 16 and a threaded driving rod 17 screwed to the translation seat 16 are slidably connected in the slide rail seat 15, and a motor connected to the threaded driving rod 17 is also arranged on one side of the slide rail seat 15, and a lifting driver 18 is fixedly connected to the top of the translation seat 16, and the output shaft of the lifting driver 18 passes through the translation seat 16 and is fixedly connected to the lifting seat 19, and a suction cup 20 is arranged at the bottom of the lifting seat 19, and two limit rods 21 that vertically pass through the translation seat 16 and are slidably connected to the lifting seat 16 are also fixedly connected to the lifting seat 19. The motor drives the threaded drive rod to rotate and drive the translation seat to translate along the slide rail seat, so that the suction cup on the lifting seat connected to the translation seat can move horizontally between the material picking position and the material loading position. After the suction cup sucks the pole piece, it is driven to the top of the wafer carrier by the translation seat, and the lifting driver can drive the lifting seat to move downward so that the pole piece can be lowered and placed on the wafer carrier, and the limit rod can limit the lifting seat.

[0037] Those skilled in the art should understand that the lifting drive may be an oil cylinder, an air cylinder or a linear motor, etc.; the suction cup is connected to a vacuum pump.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0039] Although this article uses the material box 1, the wafer carrier 2, the negative pressure dust suction channel structure 3, the exhaust channel 4, the dust suction channel 5, the positive pressure channel structure 6, the left side plate 7, the right side plate 8, the T-shaped slide rail 9, the T-shaped slide groove 10, the base 11, the driver mounting seat 12, the translation driver 13, the top plate 14, the slide rail seat 15, the translation seat 16, the threaded drive rod 17, the lifting driver 18, the lifting seat 19, the suction cup 20, the limit rod 21 and the like more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A device for removing dust from laminated battery core electrodes, comprising a material box (1) for placing electrodes, characterized in that: The material box (1) is provided with a wafer carrier (2), and the material box (1) is provided with a negative pressure dust suction channel structure (3) which is connected to the material inlet and outlet of the material box (1); the negative pressure dust suction channel structure (3) comprises an exhaust channel (4) connected to a negative pressure generating component and a plurality of dust suction channels (5), and the inner end of the dust suction channel (5) is connected to the exhaust channel (4).

2. A laminated battery core electrode dust removal device according to claim 1, characterized in that: The outer end of the dust suction channel (5) is located on the side wall of the material box (1).

3. A laminated battery core electrode sheet dust removal device according to claim 2, characterized in that: The material box (1) is also provided with a positive pressure channel structure (6) for introducing positive pressure ion wind into the material box (1); the positive pressure channel structure (6) and the negative pressure dust suction channel structure (3) have the same structure, and the positive pressure channel structure (6) and the negative pressure dust suction channel structure (3) are arranged on both sides of the material box (1) relative to each other.

4. A laminated battery core electrode dust removal device according to claim 3, characterized in that: The material box (1) is formed by combining a left side plate (7) and a right side plate (8), and the positive pressure channel structure (6) and the negative pressure dust suction channel structure (3) are respectively arranged on the left side plate (7) and the right side plate (8).

5. A laminated battery core electrode dust removal device according to claim 4, characterized in that: The wafer carrier (2) is slidably matched with the left side plate (7) and the right side plate (8) via a sliding guide rail structure.

6. A laminated battery core electrode dust removal device according to claim 5, characterized in that: Two T-shaped slide rails (9) are respectively arranged on both sides of the wafer carrier (2), and the T-shaped slide rails (9) are inserted into the T-shaped slide grooves (10) at the bottom of the left side plate (7) or the right side plate (8).

7. A laminated battery core electrode dust removal device according to claim 6, characterized in that: It also comprises a base (11), on which two translation components respectively connected to the left side plate (7) and the right side plate (8) are symmetrically arranged.

8. The laminated battery core electrode dust removal device according to claim 7, characterized in that: The translation assembly comprises a translation driver (13) fixed on a driver mounting seat (12), and the output shaft end of the translation driver (13) is detachably connected to the left side plate (7) or the right side plate (8).

9. The laminated battery core electrode dust removal device according to claim 7, characterized in that: A top plate (14) is also fixed to the base (11) via a bracket, and a pole piece loading mechanism is provided on the top plate (14).

10. A laminated battery core electrode dust removal device according to claim 9, characterized in that: The pole piece feeding mechanism comprises a slide rail seat (15) fixed on the top plate (14), a translation seat (16) and a threaded drive rod (17) threadedly connected to the translation seat (16) in a slidable manner in the slide rail seat (15), a motor connected to the threaded drive rod (17) is also provided on one side of the slide rail seat (15), a lifting driver (18) is fixedly connected to the top of the translation seat (16), an output shaft of the lifting driver (18) passes through the translation seat (16) and is fixedly connected to the lifting seat (19), a suction cup (20) is provided at the bottom of the lifting seat (19), and two limit rods (21) are also fixedly connected to the lifting seat (19) which vertically pass through the translation seat (16) and are slidably connected to the translation seat (16).

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