Battery pole piece recovery equipment

Abstract

The utility model belongs to the technical field of pole piece production, and particularly relates to battery pole piece recycling equipment which comprises a box body, a battery pole piece recycling device and a battery pole piece recycling device, the roller is rotatably mounted in the box body; the driving device is arranged outside the box body, connected with the roller and used for driving the roller to rotate; the liquid inlet is used for injecting an active substance solvent into the box body, a feeding hole and a plurality of filtering holes are formed in the roller, the feeding hole is communicated with the feeding hole, and the filtering holes are formed in the periphery of the roller; the recycling equipment has the beneficial effects that the recycling equipment is convenient and simple to operate, and can clean pole piece excess materials with active substances generated in a pole piece die cutting process, so that the active substances and foils can be recycled separately, the resource utilization rate is improved, the production cost is reduced, and the economic benefit is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pole piece production, and in particular relates to a battery pole piece recycling device. Background Art

[0002] In the production process of battery electrodes, the die-cutting process is a very important link. The die-cutting process can accurately cut large pieces of battery electrode materials into the required small pieces or shapes, and can also ensure the consistency of size and shape of each component of the battery electrode, thereby ensuring the stability and reliability of the battery during assembly and use.

[0003] In the prior art, in order to ensure the stability of the electrode process during the die-cutting process, Figure 4 As shown, the metropolitan area will cut off 1-2mm of the membrane surface at the edge of each electrode. Since there are active substances remaining on the membrane surface, it cannot be recycled together with the waste foil, and directly discarding it will cause a waste of resources. Utility Model Content

[0004] The purpose of this utility model is to provide a battery pole piece recycling device to solve the above-mentioned technical problems.

[0005] In view of this, the present invention provides a battery electrode recycling device, comprising:

[0006] The box body includes a feed inlet, a liquid inlet and a liquid discharge port;

[0007] A drum is rotatably mounted in the box;

[0008] A driving device is arranged outside the box and connected to the drum, and is used to drive the drum to rotate;

[0009] Among them, the liquid inlet is used to inject active substance solvent into the box body, and the drum is provided with a feed hole and several filter holes. The feed hole is connected to the feed inlet, and the several filter holes are located on the outer circumference of the drum.

[0010] Furthermore, it also includes:

[0011] The spray device has an output end connected to the liquid inlet and is used to spray the electrode active material solvent into the box.

[0012] Furthermore, it also includes:

[0013] The recovery pipe is connected with the liquid discharge port.

[0014] Furthermore, it also includes:

[0015] Control valve: The control valve is used to control the opening and closing of the recovery pipe.

[0016] Furthermore, it also includes:

[0017] Ultrasonic device: The ultrasonic device is installed on the box.

[0018] Furthermore, there are multiple ultrasonic devices.

[0019] Furthermore, it also includes:

[0020] The box door is used to seal the feed port of the box.

[0021] Furthermore, the box door is hingedly connected to the box body.

[0022] Furthermore, the internal cavity of the box body has a cylindrical structural shape.

[0023] Furthermore, the driving device is a motor.

[0024] The beneficial effects of the utility model are:

[0025] The recycling equipment is easy and simple to operate, and can clean the electrode waste containing active substances produced in the electrode die-cutting process, so that the active substances and foils can be recycled separately, thereby improving resource utilization, reducing production costs and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the utility model;

[0027] Figure 2 It is a structural sectional view of the utility model;

[0028] Figure 3 This is a schematic diagram of the pole piece structure before die-cutting in the utility model;

[0029] Figure 4 This is a schematic diagram of the pole piece structure after die-cutting in the utility model;

[0030] The marks in the figure are:

[0031] 1. Box body; 11. Feed inlet; 12. Liquid inlet; 13. Liquid discharge port; 2. Drum; 21. Filter hole; 3. Drive device; 4. Recovery pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0033] In the description of this application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0034] Example 1:

[0035] This embodiment provides a battery electrode recycling device, comprising:

[0036] The box body 1 includes a feed port 11, a liquid inlet 12 and a liquid discharge port 13;

[0037] The drum 2 is rotatably mounted in the housing 1;

[0038] The driving device 3 is arranged outside the box body 1 and connected to the drum 2, and is used to drive the drum 2 to rotate;

[0039] The liquid inlet 12 is used to inject active substance solvent into the box body 1 . The drum 2 is provided with a feed hole and a plurality of filter holes 21 . The feed hole is connected to the feed inlet 11 . The plurality of filter holes 21 are located on the outer periphery of the drum 2 .

[0040] In this technical solution, after the pole piece is rolled, Figure 3 As shown, it is usually necessary to use a die-cutting device to die-cut the pole piece to process the pole piece into the required shape. Figure 4 As shown, after the die-cutting process, the pole piece will form three parts: the pole piece to be processed later, the pole piece residue and the foil residue. The foil residue can be directly recycled for metal, and the pole piece residue is collected and recycled using the recycling equipment.

[0041] like Figure 1As shown, the collected electrode residue is fed from the feed port 11 and enters the drum 2 through the feed hole, then the feed port 11 is blocked, and then a solvent capable of dissolving the active substance is injected into the box 1 from the liquid inlet 12. The solvent can enter the drum 2 through the filter hole 21 on the drum 2 to wash off the active substance on the surface of the electrode residue. At the same time, the driving device 3 controls the drum 2 to rotate, so that the electrode residue in the drum 2 rolls in the drum 2, so that the electrode residue and the solvent can fully contact, so that the active substance on the electrode residue can be washed off faster, effectively improving the cleaning efficiency. After cleaning is completed, the active substance is discharged from the drain port 13 along with the solvent for recycling, and the foil residue remaining in the drum 2 after cleaning is taken out from the feed port 11 for recycling.

[0042] In addition, the structural shape of the internal chamber of the box body 1 is cylindrical, which is adapted to the shape and structure of the drum 2. Through this structural design, while ensuring that the solvent in the box body 1 can enter the drum 2 through the filter hole 21 on the drum 2 to completely immerse the residual electrode material, the amount of solvent injected can be reduced, thereby saving solvent and effectively improving economic benefits.

[0043] It is worth mentioning that the recycling equipment can also be used to clean the coating head parts. The coating head parts are placed in the drum 2, and solvent is injected to clean the active substances remaining on the coating head parts. The cleaned active substances are recycled and the cleaned coating head parts are taken out from the drum 2 for subsequent use.

[0044] In summary, the recycling equipment is easy and simple to operate, and can clean the electrode waste containing active substances produced in the electrode die-cutting process, so that the active substances and foils can be recycled separately, thereby improving resource utilization, reducing production costs, and effectively improving economic benefits.

[0045] Example 2:

[0046] This embodiment provides a battery electrode recycling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] Furthermore, it also includes:

[0048] The spraying device has an output end connected to the liquid inlet 12 and is used to spray the electrode active material solvent into the box body 1.

[0049] In this technical solution, the spray head of the spray device is connected to the liquid inlet 12 of the box body 1, and the active material solvent is sprayed into the box body 1 through the spray head. At the same time, the driving device 3 controls the rotation of the drum 2, and the sprayed solvent enters the drum 2 through the filter hole 21 to clean the electrode residue, so that the active material falls off from the surface of the foil. The active material can be cleaned without waiting for the solvent to submerge all the electrode residue, thereby improving the cleaning efficiency.

[0050] Example 3:

[0051] This embodiment provides a battery electrode recycling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] Furthermore, it also includes:

[0053] The recovery pipe 4 is connected to the drain port 13 .

[0054] In this technical solution, one end of the recovery pipe 4 is connected to the drain port 13, and the other end is connected to the storage device. The cleaned active material is discharged into the storage device along with the solvent through the recovery pipe 4 for storage, which is convenient for subsequent recycling and processing. Furthermore, it also includes a control valve, which is used to control the opening and closing of the recovery pipe 4. A control valve is set on the recovery pipe 4 to control the opening and closing of the recovery pipe 4. During the cleaning process of the electrode residual material, the control valve controls the recovery pipe 4 to close, ensuring that the solvent will not be discharged from the drain port 13, ensuring that the electrode residual material is fully immersed in the solvent for cleaning.

[0055] Example 4:

[0056] This embodiment provides a battery electrode recycling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] Furthermore, it also includes:

[0058] Ultrasonic device: The ultrasonic device is installed on the box 1.

[0059] Furthermore, there are multiple ultrasonic devices.

[0060] In this technical solution, several ultrasonic devices are installed on the box 1. Ultrasonic devices are existing technology and can be purchased commercially. The transmitters of the ultrasonic devices can be installed on both sides of the drum 2 or below the drum 2 (not shown in the figure). The active material recovery process is a staged process, including a first stage recovery and a second stage recovery. In the first stage recovery, most of the active material on the surface of the foil is first washed off using a solvent injected into the box 1. Then, the active material is recovered and stored using the recovery pipe 4.

[0061] Then the second stage of recovery is carried out, and the solvent is injected into the box 1. After the solvent in the box 1 submerges the ultrasonic transmitter, the ultrasonic device is started, and the driving device 3 controls the rotation of the drum 2. The solvent cleans the foil and the drum 2. The ultrasonic device and the solvent can be used to clean the active substances in the folds and gaps of the foil and the active substances remaining in the filter holes 21 of the drum 2, thereby improving the foil cleaning effect and preventing the filter holes 21 of the drum 2 from being blocked.

[0062] Since the concentration of active substances in the second-stage recovered liquid is low, the second-stage recovered liquid is first discharged to another storage device through the recovery pipe 4, and then combined with the first-stage recovered liquid after evaporation and concentration, and finally recycled and processed to improve resource utilization.

[0063] Example 5:

[0064] This embodiment provides a battery electrode recycling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] Furthermore, a box door is included, which is used to seal the feed port 11 of the box body 1.

[0066] Furthermore, the box door is hingedly connected to the box body 1.

[0067] In this technical solution, the structural design makes it easier to open and close the box door, making it convenient to put the remaining electrode material into the box body 1 and to take out the remaining foil material after cleaning from the box body 1, which is highly practical.

[0068] Example 6:

[0069] This embodiment provides a battery electrode recycling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0070] Furthermore, the driving device 3 is a motor.

[0071] In this technical solution, the driving device 3 uses a motor, which can effectively convert electrical energy into mechanical energy to drive the drum to rotate, thereby achieving efficient energy conversion. The motor can also achieve precise control of the drum's rotational motion, and is highly practical.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A battery pole piece recycling device, characterized in that: include: A box body (1), the box body (1) comprising a feed inlet (11), a liquid inlet (12) and a liquid discharge port (13); A drum (2), the drum (2) being rotatably mounted in the box (1); A driving device (3), the driving device (3) being arranged outside the box (1) and connected to the drum (2), and being used to drive the drum (2) to rotate; The liquid inlet (12) is used to inject active substance solvent into the box (1), and the drum (2) is provided with a feed hole and a plurality of filter holes (21), the feed hole is connected to the feed inlet (11), and the plurality of filter holes (21) are located on the outer periphery of the drum (2); The internal cavity of the box (1) has a cylindrical structure, which matches the shape and structure of the drum (2); The invention also includes a spraying device, wherein the output end of the spraying device is connected to the liquid inlet (12), and the spray head of the spraying device is connected to the liquid inlet (12) of the box body (1). The active material solvent is sprayed into the box body (1) through the spray head. At the same time, the driving device (3) controls the rotation of the drum (2), and the sprayed solvent enters the drum (2) through the filter hole (21) to clean the residual electrode material.

2. The battery pole piece recycling equipment according to claim 1, characterized in that: Also includes: A recovery pipe (4), wherein the recovery pipe (4) is connected to the liquid discharge port (13).

3. The battery pole piece recycling equipment according to claim 2, characterized in that: Also includes: A control valve is used to control the opening and closing of the recovery pipe (4).

4. The battery pole piece recycling equipment according to claim 1, characterized in that: Also includes: An ultrasonic device is installed on the box (1).

5. The battery pole piece recycling equipment according to claim 4, characterized in that: The number of the ultrasonic devices is several.

6. The battery pole piece recycling equipment according to claim 1, characterized in that: Also includes: A box door, the box door is used to block the feed inlet (11) of the box body (1).

7. The battery pole piece recycling equipment according to claim 6, characterized in that: The box door is hingedly connected to the box body (1).

8. The battery pole piece recycling equipment according to claim 1, characterized in that: The driving device (3) is a motor.

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