Electrode processing equipment

Abstract

This invention provides an electrode processing apparatus, including a coating device, a baking device, and a dust cover. The coating device is used to coat the electrode. The baking device is located downstream of the coating device to bake the coated electrode. At least a portion of the dust cover is disposed between the coating device and the baking device, and the dust cover has a transmission channel for the electrode to flow from the coating device to the baking device along the transmission channel. In an embodiment of this invention, the dust cover is disposed between the coating device and the baking device, and covers the electrode between the baking device and the coating device, ensuring that the electrode surface is clean before baking, thereby ensuring the uniformity of the coating after baking and improving the quality of the electrode manufactured by the electrode processing equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrode processing technology, specifically to an electrode processing device. Background Technology

[0002] During the production of electrode sheets, a slurry needs to be evenly coated onto the electrode sheet, flattened by rollers to form a uniform film, and then sent to an oven for drying to allow the coating to fully cure. To maintain the purity of the electrode sheets after coating, strict requirements are placed on the cleanliness of the environment during the transport of the electrodes to the oven. This prevents airborne dust particles and other contaminants from falling onto the electrode sheets and subsequently affecting the self-discharge of the battery.

[0003] In related technologies, filtration systems are typically installed in coating workshops to remove particulate matter and contaminants from the air. However, filtration in coating workshops requires a large number of FFUs (Fan Filter Units) and electricity, resulting in high costs. Utility Model Content

[0004] The embodiments of this utility model provide an electrode processing device that can improve the technical problem of high environmental requirements for electrode processing devices in related technologies.

[0005] An embodiment of this utility model provides an electrode processing device, comprising:

[0006] A coating apparatus for coating electrodes;

[0007] A baking apparatus, disposed downstream of the coating apparatus, for baking the coated electrode sheet; and,

[0008] A dust cover, at least a portion of which is disposed between the coating device and the baking device, and the dust cover having a transfer channel for the electrode sheet to flow from the coating device to the baking device along the transfer channel.

[0009] In one embodiment, the electrode processing equipment includes a plurality of isolation members, which are spaced apart within the transmission channel to divide the transmission channel into a plurality of dustproof areas.

[0010] In one embodiment, the electrode processing equipment further includes multiple temperature sensors, with at least one temperature sensor provided in each of the dustproof areas.

[0011] In one embodiment, the electrode processing equipment further includes multiple humidity sensors, with at least one humidity sensor provided in each of the dustproof areas.

[0012] In one embodiment, the electrode processing equipment further includes a buffer chamber disposed between the coating device and the baking device, and the buffer chamber is connected to the transmission channel for storing the electrode.

[0013] In one embodiment, along the thickness direction of the electrode, the distance between at least one surface of the electrode and the inner wall of the adjacent transmission channel is greater than or equal to 2 cm and less than or equal to 20 cm; and / or,

[0014] Along the thickness direction of the electrode, the height of the transmission channel is greater than or equal to 4cm and less than or equal to 40cm.

[0015] In one embodiment, along the width direction of the electrode, the distance between the electrode and the inner wall of the transmission channel adjacent to the electrode is greater than or equal to 10 cm; and / or,

[0016] Along the width direction of the electrode, the width of the transmission channel is greater than or equal to 85cm.

[0017] In one embodiment, the dust cover includes a protective layer and a heat insulation layer, the protective layer being attached to the side of the heat insulation layer away from the electrode.

[0018] In one embodiment, the electrode processing equipment further includes a dust removal device, one end of which is connected to the transmission channel for absorbing particulate matter within the transmission channel.

[0019] In one embodiment, the dust removal device includes:

[0020] A conveying pipeline, one end of which is connected to the transmission channel;

[0021] A fan, disposed in the conveying pipeline, for absorbing particulate matter within the transmission channel; and,

[0022] A dust collector is disposed at one end of the conveying pipe away from the transmission channel to contain the particulate matter.

[0023] The beneficial effects of the embodiments of this utility model are as follows:

[0024] In this embodiment of the invention, a dust cover is disposed between the coating device and the baking device, and covers the electrode sheet between the baking device and the coating device. This ensures that the surface of the electrode sheet is clean before baking, thereby guaranteeing the uniformity of the coating after baking and improving the quality of the electrode sheets manufactured by the electrode sheet processing equipment. Simultaneously, the dust cover can also suppress the diffusion of dust generated during the transportation of the electrode sheet from the coating device to the baking device, reducing the probability of this dust spreading to other equipment and maintaining the cleanliness of the working environment of the electrode sheet processing equipment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the electrode processing equipment provided in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the dust cover and dust removal device provided in an embodiment of this utility model;

[0028] Figure 3 yes Figure 2 A cross-sectional view of part of the structure of the medium electrode processing equipment;

[0029] Figure 4 This is a schematic diagram of the structure of the dust cover provided in an embodiment of this utility model;

[0030] Figure 5 This is a cross-sectional view of the dust cover provided in an embodiment of this utility model;

[0031] Figure 6 This is another structural schematic diagram of the dust cover and dust removal device provided by this utility model.

[0032] The labels in the diagram are as follows:

[0033] 1. Electrode processing equipment;

[0034] 11. Coating device; 12. Baking device;

[0035] 13. Dust cover; 131. Transmission channel; 1311. Dustproof area; 132. Protective layer; 133. Insulation layer;

[0036] 14. Isolation components;

[0037] 15. Dust removal device; 151. Conveying pipeline; 152. Dust collector;

[0038] 2. Electrode;

[0039] H1, the thickness direction of the electrode;

[0040] H2, the width direction of the electrode. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of the embodiments 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.

[0042] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0044] Reference Figures 1 to 4 This utility model provides an electrode processing device 1, including a coating device 11, a baking device 12, and a dust cover 13; the coating device 11 is used to coat the electrode 2; the baking device 12 is disposed downstream of the coating device 11 to bake the coated electrode 2; at least part of the dust cover 13 is disposed between the coating device 11 and the baking device 12, and the dust cover 13 is provided with a transmission channel 131 to allow the electrode 2 to flow from the coating device 11 to the baking device 12 along the transmission channel 131.

[0045] Between the coating and baking processes, the electrode 2 is in a wet, uncured state, making it susceptible to adsorbing dust or particulate matter from the environment. If dust adheres to the wet coating and enters the baking process, it may lead to uneven coating, rough surface, or localized performance degradation. Therefore, this embodiment of the invention includes a dust cover 13, which physically isolates and prevents external dust from falling onto the surface of the electrode 2, avoiding impurities and defects in the slurry coated on the electrode 2, and improving the consistency and yield of the electrode 2.

[0046] The dust cover 13 is provided with a transmission channel 131, so that the electrode 2 can flow from the coating device 11 to the baking device 12 along the transmission channel 131, so that the electrode 2 can be transmitted in a relatively closed environment, thereby achieving the comprehensive protection of the electrode 2 by the dust cover 13 during transportation, thereby reducing the probability of the slurry coated on the electrode 2 being contaminated by the environment.

[0047] In this embodiment of the invention, a dust cover 13 is disposed between the coating device 11 and the baking device 12, and covers the electrode 2 between the baking device 12 and the coating device 11. This ensures that the surface of the electrode 2 is clean before baking, thereby guaranteeing the uniformity of the coating after baking and improving the quality of the electrode 2 manufactured by the electrode processing equipment 1. At the same time, the dust cover 13 can also suppress the diffusion of dust generated during the transportation of the electrode 2 from the coating device 11 to the baking device 12, reducing the probability of this dust spreading to other equipment and maintaining the cleanliness of the working environment of the electrode processing equipment 1.

[0048] In some alternative implementations, refer to Figure 1 One end of the dust cover 13 is connected to the coating device 11, and the other end is connected to the baking device 12. This ensures that the electrode 2 is protected by the dust cover 13 throughout its entire path from coating completion to baking, reducing the probability of environmental contamination of the coated electrode 2. Furthermore, the dust cover 13 is directly connected to both the coating device 11 and the baking device 12, eliminating the need for additional installation or support structures to fix it, thus reducing installation requirements and improving its applicability. The large-area coverage of the dust cover 13 also helps maintain stable temperature, humidity, and airflow within it, further reducing the probability of coating contamination due to environmental fluctuations.

[0049] Understandably, there are various ways to connect the dust cover 13 to the coating device 11, and designers can design accordingly based on actual needs. For example, when the dust cover 13 and the coating device 11 are detachably connected, the dust cover 13 can be fixedly connected to the coating device 11 by at least one of the following methods: screw connection, snap-fit ​​connection, or plug-in connection. Alternatively, when the dust cover 13 and the coating device 11 are non-detachably connected, the dust cover 13 can be fixedly connected to the coating device 11 by welding, but not limited to welding. The connection method between the dust cover 13 and the baking device 12 is similar and will not be described further here.

[0050] In some alternative embodiments, the dust cover 13 includes a plurality of covers connected in sequence, and the connection between the covers is provided with a detachable structure, such as a buckle or a magnetic attachment, so as to facilitate the cleaning and maintenance of the dust cover 13.

[0051] In one embodiment, reference is made to Figure 3The electrode processing equipment 1 includes a plurality of isolation components 14, which are spaced apart within the transmission channel 131 to divide the transmission channel 131 into a plurality of dustproof areas 1311.

[0052] As the state of the slurry on the electrode 2 changes continuously during the process of transporting it from the coating device 11 to the baking device 12, the environmental requirements for the electrode 2 also vary. In this embodiment of the invention, by dividing the transmission channel 131 into multiple dustproof zones 1311, parameters such as temperature, humidity, and cleanliness in different dustproof zones 1311 can be adjusted according to actual needs. For example, since the slurry on the electrode 2 that has just been coated has high fluidity and is easily contaminated with dust, a higher cleanliness standard can be set in the dustproof zone 1311 near the coating device 11. As the electrode 2 is transported, the cleanliness standard in the downstream dustproof zone 1311 is reduced, thereby reducing energy consumption during electrode 2 processing and saving production costs while ensuring the quality of the electrode 2.

[0053] In one embodiment, the electrode processing equipment 1 further includes a plurality of temperature sensors, with at least one temperature sensor provided in each of the dustproof areas 1311.

[0054] A temperature sensor is installed inside the transmission channel 131 to monitor the ambient temperature parameters in the channel in real time, so that staff can view the parameters and take corresponding measures, such as raising or lowering the temperature.

[0055] In some alternative implementations, a temperature control device can be directly connected to the transmission channel 131, and a temperature sensor can be connected to the temperature control device, so that the temperature control device can obtain the ambient temperature parameters measured by the temperature sensor and automatically adjust the temperature in the transmission channel 131 accordingly, which will further improve the intelligence level of the electrode processing equipment 1.

[0056] In one embodiment, the electrode processing equipment 1 further includes a plurality of humidity sensors, with at least one humidity sensor provided in each of the dustproof areas 1311.

[0057] A humidity sensor is installed inside the transmission channel 131 to monitor the environmental humidity parameters in the channel in real time, so that staff can view the parameters and take corresponding measures, such as increasing or decreasing the humidity.

[0058] In some optional implementations, a humidity control device can be directly connected to the transmission channel 131 to regulate the humidity within the channel. This humidity control device typically includes a humidification module and a dehumidification module. Operators can activate different modules according to actual needs, thereby stabilizing the humidity within the appropriate range required for the electrode 2, improving the consistency and yield of the produced electrode 2.

[0059] In one embodiment, the electrode processing equipment 1 further includes a buffer chamber disposed between the coating device 11 and the baking device 12, and the buffer chamber is connected to the transmission channel 131 for storing the electrode 2. The buffer chamber is used for temporary storage of the electrode 2, allowing the electrode 2 to be stored in the buffer chamber when the downstream device is overloaded or encounters problems, ensuring the continuous operation of the coating device 11 and improving the production efficiency of the electrode 2. The temperature, humidity, and cleanliness within the buffer chamber can also be set as needed, as detailed in the above embodiment, and will not be repeated here.

[0060] In one embodiment, along the thickness direction H1 of the electrode, the distance between at least one surface of the electrode 2 and the inner wall of the adjacent transmission channel 131 is greater than or equal to 2 cm and less than or equal to 20 cm; and / or,

[0061] Along the thickness direction H1 of the electrode, the height of the transmission channel 131 is greater than or equal to 4cm and less than or equal to 40cm.

[0062] Along the thickness direction H1 of the electrode sheet, if the distance between at least one surface of the electrode sheet 2 and the inner wall of the transmission channel 131 is less than 2cm, this distance is too short. During transportation, the electrode sheet 2 is prone to scraping against the inner wall of the transmission channel 131 due to fluctuations, thereby damaging the electrode sheet 2. If the distance between at least one surface of the electrode sheet 2 and the inner wall of the transmission channel 131 is greater than 20cm, the dust cover 13 occupies too much volume and is inconvenient to install. Therefore, in this embodiment of the utility model, the distance between at least one surface of the electrode sheet 2 and the inner wall of the transmission channel 131 is set to be greater than or equal to 2cm and less than or equal to 20cm. For example, it can be 2cm, 4cm, 6cm, 8cm, 10cm, 12cm, 14cm, 16cm, 18cm, or 20cm, thereby ensuring that the volume of the transmission channel 131 is maintained within a suitable range, reducing the probability of the electrode sheet 2 scraping against the inner wall of the transmission channel 131, and improving the production yield of the electrode sheet 2.

[0063] Along the thickness direction H1 of the electrode sheet, if the height of the transmission channel 131 is less than 4cm, the height of the transmission channel 131 is too small, which may cause the dust cover 13 to collide with the electrode sheet 2 during the installation process or the transportation of the electrode sheet 2, resulting in damage to the electrode sheet 2. If the height of the transmission channel 131 is greater than 20cm, the height of the transmission channel 131 is too large, that is, the volume occupied by the dust cover 13 is too large, resulting in inconvenience in installation. Therefore, in this embodiment of the utility model, the height of the transmission channel 131 is set to be greater than or equal to 4cm and less than or equal to 40cm. For example, it can be 4cm, 8cm, 12cm, 16cm, 20cm, 24cm, 28cm, 32cm, 36cm, or 40cm, thereby ensuring that the volume of the transmission channel 131 is maintained within a suitable range, reducing the probability of the electrode sheet 2 colliding with the inner wall of the transmission channel 131, and improving the production yield of the electrode sheet 2.

[0064] It should be noted that in this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the related objects before and after it are in an "or" relationship.

[0065] In one embodiment, along the width direction H2 of the electrode, the distance between the electrode 2 and the inner wall of the transmission channel 131 adjacent to the electrode 2 is greater than or equal to 10 cm; and / or,

[0066] Along the width direction H2 of the electrode, the width of the transmission channel 131 is greater than or equal to 85cm.

[0067] Along the width direction H2 of the electrode, if the distance between the electrode 2 and the inner wall of the transmission channel 131 adjacent to the electrode 2 is less than 10cm, the electrode 2 is prone to colliding with the dust cover 13 during transportation, and the excessively small distance will increase the difficulty of installing the dust cover 13. Therefore, in this embodiment of the utility model, the distance between the electrode 2 and the inner wall of the transmission channel 131 adjacent to the electrode 2 is set to be greater than or equal to 10cm. For example, it can be 10cm, 11cm, 12cm, 13cm, 14cm, 15cm, 16cm, 17cm, 18cm, 19cm, 20cm, etc., thereby reducing the probability of collision between the dust cover 13 and the electrode 2 and the difficulty of installing the dust cover 13.

[0068] Along the width direction H2 of the electrode sheet, if the width of the transmission channel 131 is less than 85cm, the dust cover 13 can only be applied to the electrode processing equipment 1 where the electrode sheet 2 has a smaller width. If the electrode sheet 2 is slightly wider, for example, 65cm wide, the probability of collision between the dust cover 13 and the electrode sheet 2 is higher. Therefore, in this embodiment of the invention, the width of the transmission channel 131 is set to be greater than or equal to 85cm. For example, it can be 85cm, 90cm, 95cm, 100cm, 105cm, 110cm, 120cm, etc., thereby ensuring that the width of the transmission channel 131 is sufficient and reducing the probability of collision between the dust cover 13 and the electrode sheet 2.

[0069] In one embodiment, reference is made to Figure 4 and Figure 5 The dust cover 13 includes a protective layer 132 and a heat insulation layer 133, with the protective layer 132 connected to the side of the heat insulation layer 133 away from the electrode 2.

[0070] In this embodiment of the invention, the dust cover 13 adopts a composite structure design of a protective layer 132 and a heat insulation layer 133. The protective layer 132, as the outermost layer of protection, can be made of materials such as stainless steel or acrylic sheet, and mainly serves as mechanical protection and environmental isolation, effectively blocking the influence of external dust, foreign objects, and possible physical collisions on the transmission process of the electrode 2. The heat insulation layer 133 is located between the protective layer 132 and the electrode 2, and is usually made of heat insulation materials such as ceramic or aerogel, thereby maintaining the temperature stability within the transmission channel 131. This not only avoids deformation of the cover due to high temperature, but also ensures the temperature uniformity of the electrode 2 during the transmission process, improving the yield of the electrode 2.

[0071] In one embodiment, reference is made to Figure 2 The electrode processing equipment 1 also includes a dust removal device 15, one end of which is connected to the transmission channel 131 for absorbing particulate matter in the transmission channel 131.

[0072] The dust removal device 15 is connected to the transmission channel 131 through a pipe, thereby actively purifying the dust and other foreign objects in the transmission channel 131. Specifically, the dust removal device 15 can be a negative pressure adsorption device or a filter structure, etc., to remove suspended dust and tiny debris and other foreign objects generated during the transmission of the electrode 2 in the transmission channel 131, thereby maintaining the cleanliness of the channel, preventing particulate matter from re-adhering to the surface of the electrode 2 and causing coating defects, and improving the yield of the manufactured electrode 2.

[0073] In one embodiment, reference is made to Figure 6The dust removal device 15 includes a conveying pipe 151, a fan, and a dust collector 152; one end of the conveying pipe 151 is connected to the transmission channel 131; the fan is installed in the conveying pipe 151 to absorb particulate matter in the transmission channel 131; the dust collector 152 is installed at the end of the conveying pipe 151 away from the transmission channel 131 to contain particulate matter.

[0074] In this embodiment of the present invention, the dust removal device 15 achieves the adsorption of dust in the transmission channel 131 through the synergistic effect of the conveying pipe 151, the fan, and the dust collector 152. The conveying pipe 151 is directly connected to the transmission channel 131 to form a negative pressure adsorption path. When the fan is running, it generates a directional airflow in the pipe, continuously extracting the dust suspended in the transmission channel 131 and conveying it to the dust collector 152. The dust collector 152 can collect dust through filtration, sedimentation, or electrostatic adsorption, thereby effectively preventing the diffusion of dust in the transmission channel 131, reducing the probability of the slurry on the surface of the electrode 2 being contaminated, and improving the automation level and operating efficiency of the electrode processing equipment 1.

[0075] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0078] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An electrode processing device, characterized in that, include: A coating apparatus for coating electrodes; A baking device is provided downstream of the coating device for baking the coated electrode sheet. and, A dust cover, at least a portion of which is disposed between the coating device and the baking device, and the dust cover having a transfer channel for the electrode sheet to flow from the coating device to the baking device along the transfer channel.

2. The electrode processing equipment according to claim 1, characterized in that, The electrode processing equipment includes multiple isolation components, which are spaced apart within the transmission channel to divide the transmission channel into multiple dustproof areas.

3. The electrode processing equipment according to claim 2, characterized in that, The electrode processing equipment also includes multiple temperature sensors, with at least one temperature sensor installed in each of the dustproof areas.

4. The electrode processing equipment according to claim 2, characterized in that, The electrode processing equipment also includes multiple humidity sensors, with at least one humidity sensor installed in each of the dustproof areas.

5. The electrode processing equipment according to any one of claims 1 to 4, characterized in that, The electrode processing equipment also includes a buffer chamber, which is disposed between the coating device and the baking device, and is connected to the transmission channel for storing the electrode.

6. The electrode processing equipment according to any one of claims 1 to 4, characterized in that, Along the thickness direction of the electrode, the distance between at least one surface of the electrode and the inner wall of the adjacent transmission channel is greater than or equal to 2 cm and less than or equal to 20 cm; and / or, Along the thickness direction of the electrode, the height of the transmission channel is greater than or equal to 4cm and less than or equal to 40cm.

7. The electrode processing equipment according to any one of claims 1 to 4, characterized in that, Along the width direction of the electrode, the distance between the electrode and the inner wall of the transmission channel adjacent to the electrode is greater than or equal to 10 cm; and / or, Along the width direction of the electrode, the width of the transmission channel is greater than or equal to 85cm.

8. The electrode processing equipment according to any one of claims 1 to 4, characterized in that, The dust cover includes a protective layer and a heat insulation layer, with the protective layer connected to the side of the heat insulation layer away from the electrode.

9. The electrode processing equipment according to any one of claims 1 to 4, characterized in that, The electrode processing equipment also includes a dust removal device, one end of which is connected to the transmission channel to absorb particulate matter within the transmission channel.

10. The electrode processing equipment according to claim 9, characterized in that, The dust removal device includes: A conveying pipeline, one end of which is connected to the transmission channel; A fan, disposed in the conveying pipeline, for absorbing particulate matter within the transmission channel; and, A dust collector is disposed at one end of the conveying pipe away from the transmission channel to contain the particulate matter.

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