Dust removal device for electrode sheet, and battery processing apparatus
By designing an electrode dust cleaning device, which uses air blowing and suction components to remove dust from the electrode, the problem of short circuit in the cell caused by dust on the edge of the electrode after cutting is solved, thus improving the safety and production efficiency of battery processing equipment.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- EVE POWER CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-05-15
AI Technical Summary
Dust and other metal shavings may remain at the edges of the cut positive and negative electrode sheets. Failure to clean them in time may lead to a short circuit inside the core package and reduce product safety.
Design an electrode dust cleaning device, including a housing, an air suction component, and first and second air blowing components. The vertically arranged air blowing component blows air onto the dust on the electrode, and the air suction component sucks it up, ensuring that the dust does not adhere to the electrode.
It effectively removes dust from the electrode sheets, prevents dust from entering the core package, reduces the risk of short circuits, improves safety, and saves costs.
Smart Images
Figure CN2025078070_15052026_PF_FP_ABST
Abstract
Description
Electrode dust cleaning device and battery processing equipment
[0001] This application claims priority to Chinese Patent Application No. 202422709517.X, filed with the Chinese Patent Office on November 6, 2024, the entire contents of which are incorporated herein by reference.
[0002] Technical Field
[0003] This application relates to the field of battery manufacturing technology, specifically to an electrode dust cleaning device and battery processing equipment.
[0004] Background Technology
[0005] In the manufacturing process of lithium batteries, the electrode sheets need to be cut. For example, positive electrode sheets are usually cut using metal tools, while negative electrode sheets are usually cut using lasers.
[0006] Technical issues
[0007] However, dust and other metal shavings are present at the edges of both the cut positive and negative electrode sheets. If the residual dust and other foreign matter are not cleaned in time, it may cause a short circuit inside the core package that is subsequently processed due to the dust and foreign matter, reducing the safety of the product and increasing safety hazards.
[0008] Technical solutions
[0009] In a first aspect, this application provides an electrode dust cleaning device, comprising:
[0010] The housing has an inner cavity. Along a first direction, through holes for electrode transfer are provided on opposite sides of the housing, and the through holes communicate with the inner cavity. Along a second direction, air intake ports are provided on opposite sides of the housing.
[0011] An air intake assembly, wherein the air intake assembly is connected to the air intake port;
[0012] A first air blowing assembly and a second air blowing assembly are both disposed in the inner cavity, and a channel for the electrode sheet to be transmitted is formed between the first air blowing assembly and the second air blowing assembly. The channel communicates with the through hole. The first air blowing assembly and the second air blowing assembly are both disposed along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
[0013] Both the first air blowing assembly and the second air blowing assembly are configured to blow air onto the dust on the electrode; the air suction assembly is configured to suck up the blown-up dust.
[0014] As an optional technical solution for electrode dust cleaning devices, the first air blowing component and the second air blowing component are arranged facing each other.
[0015] As an optional technical solution for an electrode dust cleaning device, air blowing ports are provided on opposite sides of the housing along the third direction. The first air blowing component is connected to one of the air blowing ports, and the second air blowing component is connected to the other air blowing port.
[0016] As an optional technical solution for an electrode dust cleaning device, the first air blowing assembly has the same structure as the second air blowing assembly. The first air blowing assembly includes a connecting pipe and an air blowing platform. An air blowing hole is provided on the air blowing platform. One end of the connecting pipe is connected to the air blowing port, and the other end is connected to the air blowing hole. The air blowing hole is connected to the inner cavity.
[0017] As an optional technical solution for an electrode dust cleaning device, the air blowing platform is provided with a groove, the groove having a groove bottom and groove wall adjacent to each other, and the air blowing hole is provided on the groove bottom and / or groove wall.
[0018] As an optional technical solution for an electrode dust cleaning device, the bottom of the tank is planar or arc-shaped, and the tank wall is planar or arc-shaped.
[0019] As an optional technical solution for an electrode dust cleaning device, multiple grooves and connecting pipes are provided, and the grooves and connecting pipes are arranged in a one-to-one correspondence. Multiple air blowing holes are provided at equal intervals in each groove.
[0020] As an optional technical solution for an electrode dust cleaning device, the plurality of grooves are staggered along the first direction.
[0021] As an optional technical solution for an electrode dust cleaning device, the air inlet is provided with an outer edge along the second direction, and the outer edge is connected to the air intake assembly.
[0022] Secondly, this application provides a battery processing equipment, which includes an electrode cutting device and an electrode dust cleaning device as described in any of the above optional technical solutions, wherein the electrode dust cleaning device is located upstream or downstream of the electrode cutting device.
[0023] Beneficial effects
[0024] This application provides an electrode dust cleaning device, which includes a housing, a suction assembly, a first blowing assembly, and a second blowing assembly. The housing has an inner cavity. Along a first direction, through holes for electrode transport are formed on opposite sides of the housing, and these through holes communicate with the inner cavity. Along a second direction, suction ports are formed on opposite sides of the housing, and the suction assembly communicates with these suction ports. Both the first and second blowing assemblies are disposed within the inner cavity, forming a channel for electrode transport. This channel communicates with the through holes, allowing the electrode to be transported from one through hole through the channel and then out through the other through hole. Both the first and second blowing assemblies are arranged along a third direction, with the first, second, and third directions being mutually perpendicular. Both the first and second blowing assemblies are configured to blow air onto the dust on the electrode; the suction assembly is configured to suck up the blown dust.
[0025] In summary, both the first and second air-blowing components can blow air onto the electrode sheets that are being transported into the channel. This allows dust and other metal shavings on the electrode sheets to be blown away, preventing them from adhering to the electrode sheets. The suction component can then draw in the blown-away dust, removing it from the electrode sheets and preventing dust and other metal shavings from entering the core package and causing a short circuit. This improves safety, reduces safety hazards, and saves costs.
[0026] This application also provides a battery processing equipment that can avoid the risk of short circuits inside the cell pack, improve safety performance, and reduce safety hazards.
[0027] Attached Figure Description
[0028] Figure 1 is a schematic diagram of the electrode dust cleaning device and electrode provided in Embodiment 1 of this application;
[0029] Figure 2 is a schematic diagram of the electrode dust cleaning device provided in Embodiment 1 of this application;
[0030] Figure 3 is a side view of the electrode dust cleaning device provided in Embodiment 1 of this application;
[0031] Figure 4 is a cross-sectional view along the AA direction in Figure 3;
[0032] Figure 5 is a schematic diagram of the electrode dust cleaning device and electrode provided in Embodiment 2 of this application;
[0033] Figure 6 is a schematic diagram of the electrode dust cleaning device provided in Embodiment 2 of this application;
[0034] Figure 7 is a schematic diagram of the structure of the battery processing equipment provided in the embodiment of this application.
[0035] Figure Labels
[0036] 10. Electrode;
[0037] 100, Housing; 110, Through hole; 120, Intake port; 1201, Outer edge; 130, Air outlet; 140, Channel; 150, Inner cavity; 200, First air blowing assembly; 210, Connecting pipe; 220, Air blowing platform; 230, Groove; 2301, Groove bottom; 2302, Groove wall; 240, Air blowing hole; 300, Second air blowing assembly; 400, Intake assembly;
[0038] 500. Electrode cutting device; 600. Electrode dust cleaning device.
[0039] Embodiments of the present invention
[0040] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. The described embodiments are only some, not all, of the embodiments of this application. The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations.
[0041] Therefore, the following description of embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but rather to represent selected embodiments of the present application.
[0042] Similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be defined and explained in subsequent figures.
[0043] In the description of this application, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0044] In the description of this application, unless otherwise specified and limited, the terms "set" and "connection" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. The meaning of the above terms in this application can be understood according to the actual situation.
[0045] In this application, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or indicating that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or indicating that the first feature is at a lower horizontal level than the second feature.
[0046] Embodiments of this application are described below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0047] Example 1
[0048] This embodiment provides an electrode dust cleaning device that can avoid the risk of short circuits inside the core package, improve safety performance, and reduce safety hazards.
[0049] As shown in Figures 1-4 and Figure 7, the electrode dust cleaning device mainly includes a housing 100, an air suction assembly 400, a first air blowing assembly 200, and a second air blowing assembly 300. The housing 100 has an inner cavity 150. Along a first direction, through holes 110 for transmitting electrode particles 10 are provided on opposite sides of the housing 100, and the through holes 110 communicate with the inner cavity 150. Along a second direction, air suction ports 120 are provided on opposite sides of the housing 100, and the air suction assembly 400 communicates with the air suction ports 120.
[0050] The first air-blowing assembly 200 and the second air-blowing assembly 300 are both disposed in the inner cavity 150. A channel 140 for the electrode 10 to be transported is formed between the first air-blowing assembly 200 and the second air-blowing assembly 300. The channel 140 communicates with the through hole 110, so that the electrode 10 can be transported out from one through hole 110 through the channel 140 and then through the other through hole 110. The first air-blowing assembly 200 and the second air-blowing assembly 300 are both arranged along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The first air-blowing assembly 200 and the second air-blowing assembly 300 are both configured to blow air onto the dust on the electrode 10; the suction assembly 400 is configured to suck up the blown dust.
[0051] Based on the above design, in this embodiment, both the first air blowing component 200 and the second air blowing component 300 can blow air onto the electrode 10 that is transmitted into the channel 140, so that dust and other metal shavings on the electrode 10 can be blown off, preventing foreign objects from adhering to the electrode 10; the suction component 400 can suck up the blown dust, thereby removing the dust from the electrode 10, preventing dust and other metal shavings from entering the core package and causing the risk of a short circuit in the core package, improving safety, reducing safety hazards, and saving costs.
[0052] During the blowing process, positive pressure areas are formed at both the first blowing component 200 and the second blowing component 300; during the suction process, a negative pressure area is formed at the suction component 400, so that dust and other metal shavings can be sucked out under the action of pressure difference.
[0053] Furthermore, in this embodiment, the electrode 10 is transported along a first direction, the suction assembly 400 is arranged along a second direction, and the first blowing assembly 200 and the second blowing assembly 300 are arranged along a third direction. This ensures that the electrode dust cleaning device does not affect the transport of the electrode 10 during the blowing and suction processes, thereby ensuring production efficiency and saving costs. Simultaneously, the internal structure of the electrode dust cleaning device can be rationally arranged, resulting in a compact structure and miniaturized size.
[0054] The first direction is the X-axis direction in Figure 1, the second direction is the Y-axis direction in Figure 1, and the third direction is the Z-axis direction in Figure 1.
[0055] As shown in Figures 1 and 2, in this embodiment, the first air blowing component 200 and the second air blowing component 300 are arranged opposite each other, which can improve the working efficiency of cleaning dust on the electrode 10 and save costs; at the same time, it can also improve the stability and reliability of the electrode dust cleaning device and facilitate assembly.
[0056] As shown in Figure 1, in this embodiment, air inlets 130 are provided on opposite sides of the housing 100 along a third direction. The first air inlet assembly 200 is connected to one of the air inlets 130, and the second air inlet assembly 300 is connected to the other air inlet 130. The ends of both air inlets 130 away from the inner cavity 150 are connected to a positive pressure pump, so that the positive pressure pump can provide positive pressure gas to the first air inlet assembly 200 and the second air inlet assembly 300 to ensure that the dust on the electrode 10 is blown away and prevented from adhering to the electrode 10.
[0057] In this embodiment, the first air blowing component 200 and the second air blowing component 300 have the same structure, which facilitates processing and manufacturing and saves costs.
[0058] For example, as shown in Figures 1 and 2, the first air blowing assembly 200 includes a connecting pipe 210 and an air blowing platform 220. The air blowing platform 220 is provided with an air blowing hole 240. One end of the connecting pipe 210 is connected to the air blowing port 130, and the other end is connected to the air blowing hole 240. The air blowing hole 240 is connected to the inner cavity 150. This allows the positive pressure pump to blow gas from the air blowing port 130 into the connecting pipe 210, then from the connecting pipe 210 into the air blowing hole 240 of the air blowing platform 220, and finally out through the air blowing hole 240 onto the electrode 10. The connecting pipe 210 connects the air blowing hole 240 and supports the air blowing platform 220 to a certain height, thereby minimizing the distance between the air blowing hole 240 and the electrode 10, allowing the blown gas to have a greater force to ensure that dust on the electrode 10 is blown away.
[0059] For example, the blowing platform 220 is provided with a groove 230, which has a groove bottom 2301 and a groove wall 2302 that are adjacent to each other, and the blowing hole 240 is provided on the groove bottom 2301. The groove bottom 2301 can be set as a planar shape, and the groove wall 2302 can be set as a planar shape or an arc shape. For example, the groove wall 2302 is set as an arc shape, and the groove wall 2302 bends and extends in a direction away from the groove bottom 2301, which can play a certain guiding role for the blown gas, increase the contact area between the gas and the electrode 10, and improve the efficiency of the gas blowing away dust. The groove bottom 2301 is set as a planar shape, which facilitates the arrangement of the blowing hole 240.
[0060] Optionally, in this embodiment, there are multiple grooves 230 and connecting pipes 210, and the grooves 230 and connecting pipes 210 are arranged in a one-to-one correspondence. Each groove 230 is provided with multiple air holes 240 at equal intervals, thereby increasing the gas flow rate and improving the cleaning efficiency of dust on the electrode 10.
[0061] Optionally, the air blowing hole 240 in this embodiment can be configured as a circular hole, a square hole, or a hole of other shapes.
[0062] As shown in Figures 3 and 4, multiple grooves 230 are staggered along the first direction. This allows the gas to blow away the dust on the electrode 10 as much as possible during the transmission of the electrode 10 in the channel 140, ensuring that the dust on the electrode 10 can be blown away, improving work efficiency and ensuring the safety of the core package.
[0063] As shown in Figure 1, in this embodiment, an outer edge 1201 is provided at the air intake 120 along the second direction, and the outer edge 1201 is connected to the air intake assembly 400. The outer edge 1201 can improve the convenience and reliability of the connection between the air intake assembly 400 and the air intake 120, and reduce or avoid the risk of the air intake assembly 400 falling off.
[0064] Optionally, the intake assembly 400 in this embodiment includes a negative pressure pump.
[0065] This embodiment also provides a battery processing device, as shown in FIG7. The battery processing device includes an electrode cutting device 500 and the aforementioned electrode dust cleaning device 600. The electrode dust cleaning device 600 is located upstream or downstream of the electrode cutting device 500, so that the electrode dust cleaning device can clean both the electrode 10 before and after cutting, improve the cleaning effect, avoid residual dust in the core pack, and improve the safety and reliability of the core pack.
[0066] Because the battery processing equipment has the aforementioned electrode dust cleaning device, it can avoid the risk of short circuits inside the cell pack, improve safety performance, and reduce safety hazards.
[0067] Example 2
[0068] As shown in Figures 5 and 6, this embodiment provides an electrode dust cleaning device, which differs from Embodiment 1 in that: the bottom 2301 of the groove 230 in this embodiment is arc-shaped, and the air blowing hole 240 is set on the groove wall 2302. This allows the gas blown out by the air blowing hole 240 to be guided not only by the arc-shaped groove wall 2302 but also by the arc-shaped groove bottom 2301, thereby increasing the base area between the gas and the electrode 10 and improving the cleaning efficiency of the dust on the electrode 10. The air blowing hole 240 can also be set on the groove bottom 2301 and / or the groove wall 2302.
[0069] The remaining structures of the electrode dust cleaning device in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.
[0070] This embodiment also provides a battery processing device, as shown in FIG7. The battery processing device includes an electrode cutting device 500 and an electrode dust cleaning device 600 in this embodiment. The electrode dust cleaning device 600 is located upstream or downstream of the electrode cutting device 500, so that the electrode dust cleaning device can clean both the electrode 10 before and after cutting, improve the cleaning effect, avoid residual dust in the core pack, and improve the safety and reliability of the core pack.
[0071] Because the battery processing equipment has the aforementioned electrode dust cleaning device, it can avoid the risk of short circuits inside the cell pack, improve safety performance, and reduce safety hazards.
[0072] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. An electrode dust cleaning device, comprising: The housing (100) has an inner cavity (150). Along a first direction, through holes (110) for transmitting the electrode (10) are provided on opposite sides of the housing (100), and the through holes (110) are connected to the inner cavity (150). Along a second direction, air intake ports (120) are provided on opposite sides of the housing (100). An air intake assembly (400) is connected to the air intake port (120); A first air blowing assembly (200) and a second air blowing assembly (300) are both disposed in the inner cavity (150). A channel (140) for transmission of the electrode plate (10) is formed between the first air blowing assembly (200) and the second air blowing assembly (300). The channel (140) communicates with the through hole (110). The first air blowing assembly (200) and the second air blowing assembly (300) are both disposed along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other. The first blowing assembly (200) and the second blowing assembly (300) are both configured to blow air onto the dust on the electrode (10); the suction assembly (400) is configured to suck up the blown dust.
2. The electrode dust cleaning device according to claim 1, wherein, The first air blowing assembly (200) and the second air blowing assembly (300) are positioned opposite each other.
3. The electrode dust cleaning device according to claim 1, wherein, Along the third direction, air inlets (130) are provided on opposite sides of the housing (100), the first air inlet assembly (200) is connected to one of the air inlets (130), and the second air inlet assembly (300) is connected to the other air inlet (130).
4. The electrode dust cleaning device according to claim 3, wherein, The first air blowing assembly (200) has the same structure as the second air blowing assembly (300). The first air blowing assembly (200) includes a connecting pipe (210) and an air blowing platform (220). The air blowing platform (220) is provided with an air blowing hole (240). One end of the connecting pipe (210) is connected to the air blowing port (130), and the other end of the connecting pipe (210) is connected to the air blowing hole (240). The air blowing hole (240) is connected to the inner cavity (150).
5. The electrode dust cleaning device according to claim 4, wherein, The air blowing platform (220) is provided with a groove (230), the groove (230) having a groove bottom (2301) and a groove wall (2302) adjacent to each other, and the air blowing hole (240) is provided on at least one of the following: the groove bottom (2301) or the groove wall (2302).
6. The electrode dust cleaning device according to claim 5, wherein, The bottom of the trough (2301) is planar or arc-shaped, and the trough wall (2302) is planar or arc-shaped.
7. The electrode dust cleaning device according to claim 5, wherein, The groove (230) and the connecting pipe (210) are both provided in multiples, and the groove (230) and the connecting pipe (210) are provided in a one-to-one correspondence. Each groove (230) is provided with multiple air holes (240) at equal intervals.
8. The electrode dust cleaning device according to claim 7, wherein, Along the first direction, multiple grooves (230) are staggered.
9. The electrode dust cleaning device according to any one of claims 1 to 8, wherein, An outer edge (1201) is provided at the air inlet (120) along the second direction, and the outer edge (1201) is connected to the air intake assembly (400).
10. A battery processing apparatus, wherein, The battery processing equipment includes an electrode cutting device (500) and an electrode dust cleaning device (600) according to any one of claims 1 to 9, wherein the electrode dust cleaning device (600) is located upstream or downstream of the electrode cutting device (500).