Positive and negative electrode microchip soaking device and system

Abstract

The utility model provides a positive and negative electrode microchip soaking device and system, and belongs to the technical field of lithium battery recovery. The separation device comprises a feeding tower, a soaking tower and a separation device, and the feeding tower is connected with an external conveying device to receive positive and negative electrode microchips; the soaking tower extends along a first direction and is communicated with the feeding tower along the first direction, and at least one water inlet pipe is arranged on one side of the feeding tower; the separating device is communicated with the soaking tower along a first direction and is used for separating the copper foil from the carbon powder; wherein the first direction is a gravity direction; by means of the soaking tower arranged in the first direction, after the feeding tower conveys materials, the materials can enter the soaking tower to be soaked repeatedly and conveyed by means of gravity, the requirement for soaking duration is met, meanwhile, the device can be operated to complete continuous conveying of positive and negative electrode microchips, the occupied space of a production line is greatly saved, and the production efficiency is improved. And precise parts are not needed for assembly, so that the cost is saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery recycling, and in particular to a positive and negative electrode microchip soaking device and system. Background Art

[0002] With the continuous promotion of new energy vehicles, lithium battery technology has developed rapidly, and the production of lithium batteries has also increased dramatically. However, the service life of lithium batteries is limited, so the number of retired lithium batteries has also increased. How to deal with retired lithium batteries has become a new hot topic.

[0003] Lithium batteries contain a large amount of metal components, which can be recycled. The negative microsheets in lithium batteries are composed of carbon powder, lithium and copper foil. Copper, as a valuable metal, needs to be recycled separately, and the positive microsheets are aluminum, which needs to be recycled separately. However, the existing treatment of positive and negative microsheets first requires long-term soaking of the positive and negative microsheets to dissolve the carbon powder in the positive and negative microsheets in water before the copper can be collected. The positive microsheets also need to be soaked to reduce the adhesion between the positive powder and the aluminum foil. During the soaking, most of them are soaked while conveying with a conveyor belt. This method has high requirements for the bearings of the conveyor belt and requires water-proof sealed bearings. A large number of sealed bearings will increase the cost of the production line; the soaking time requirement needs to reach 20 minutes, so the length of the conveyor belt needs to reach more than ten meters. This length of conveyor belt is difficult to achieve when the production line itself is very long. Utility Model Content

[0004] A technical problem to be solved by the present disclosure is that the existing soaking method cannot ensure that the negative electrode microsheets or the positive electrode microsheets are soaked for a sufficient time while also saving production line area and cost.

[0005] In order to solve the above technical problems, the present disclosure provides a positive and negative electrode micro-sheet immersion tower separation device, which includes:

[0006] A feeding tower, the feeding tower is connected to an external conveying device to receive positive and negative electrode microsheets;

[0007] The soaking tower extends along a first direction, is connected with the feeding tower along the first direction, and at least one water inlet pipe is provided on one side of the feeding tower.

[0008] In some embodiments, the aforementioned positive and negative electrode micro-sheet soaking and separation device, wherein the soaking tower includes a No. 1 soaking tank, a No. 2 soaking tank, a No. 3 soaking tank, a No. 4 soaking tank and a No. 5 soaking tank;

[0009] The No. 1 soaking tank, the No. 2 soaking tank, the No. 3 soaking tank, the No. 4 soaking tank and the No. 5 soaking tank are sequentially connected along the first direction, the No. 1 soaking tank is connected to the feed tower, and the side of the No. 1 soaking tank away from the feed tower is rotatably connected with a discharge plate;

[0010] Among them, the structures of soaking tank No. 2, soaking tank No. 3, soaking tank No. 4 and soaking tank No. 5 are the same as that of soaking tank No. 1.

[0011] In some embodiments, in the aforementioned positive and negative electrode microchip soaking device, one side of the No. 1 soaking tank, the No. 2 soaking tank, the No. 3 soaking tank, the No. 4 soaking tank and the No. 5 soaking tank are all provided with a water inlet pipe;

[0012] Among them, a plurality of water inlet pipes are arranged on the same side of the soaking tank and are connected in sequence.

[0013] In some embodiments, in the aforementioned positive and negative electrode microsheet immersion device, a solenoid valve is provided at the feed end of the water inlet pipe to control the water inlet time according to an external control signal.

[0014] In some embodiments, in the aforementioned positive and negative electrode microchip soaking device, the No. 1 soaking tank, the No. 2 soaking tank, the No. 3 soaking tank, the No. 4 soaking tank and the No. 5 soaking tank are all provided with an overflow pipe on the side different from the water inlet pipe;

[0015] Wherein, a plurality of overflow pipes are arranged on the same side of the soaking tank and are connected in sequence. ;

[0016] In some embodiments, in the aforementioned positive and negative electrode microsheet immersion device, the distances between immersion tank No. 1, immersion tank No. 2, immersion tank No. 3, immersion tank No. 4 and immersion tank No. 5 along the first direction are the same to control the water volume in each water tank.

[0017] In some embodiments, the aforementioned positive and negative electrode micro-sheet soaking device, wherein the feed tower includes a storage tank and a guide hopper;

[0018] There are two storage tanks, which are separately connected to the external control device. The guide hopper is "Y"-shaped, connecting the storage tank and the immersion tower to complete the transportation of positive and negative electrode microsheets.

[0019] A second aspect of the present application provides a soaking system, which includes the aforementioned positive and negative electrode microsheet soaking device.

[0020] Through the above technical scheme, the present disclosure provides a positive and negative electrode microsheet immersion device, which has an immersion tower arranged along the first direction. After the material is conveyed by the feed tower, the material can enter the rear immersion tower for repeated immersion and be conveyed by gravity, which not only meets the requirements of the immersion time, but also can complete the continuous conveying of the device operation. The longitudinal design also greatly saves the space occupied by the production line, does not require precision parts for assembly, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a front view and cross-sectional structural schematic diagram of a positive and negative electrode micro-sheet immersion device disclosed in an embodiment of the present disclosure;

[0023] Figure 2 It is a structural schematic diagram of a soaking tower of a positive and negative electrode microsheet soaking device disclosed in an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Feed tower; 11. Storage tank; 12. Guide hopper; 2. Soaking tower; 21. Soaking tank No. 1; 22. Soaking tank No. 2; 23. Soaking tank No. 3; 24. Soaking tank No. 4; 25. Soaking tank No. 5; 3. Discharge plate; 4. Water inlet pipe; 5. Solenoid valve; 6. Overflow pipe; a. First direction. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0027] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0028] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0030] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0031] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] Embodiment 1

[0034] Reference Figure 1 and attached Figure 2 The present embodiment discloses a positive and negative electrode micro-sheet soaking device, which includes a feeding tower 1, a soaking tower 2, and a disturbance device 3. The feeding tower 1 is connected to an external conveying device to receive the positive and negative electrode micro-sheets; the soaking tower 2 extends along a first direction a, and the soaking tower 2 is connected to the feeding tower 1 along the first direction a. At least one water inlet pipe 4 is provided on one side of the feeding tower 1; wherein the first direction a is the direction of gravity.

[0035] Specifically, in order to solve the problem that the existing soaking method cannot ensure that the positive and negative electrode microsheets are soaked for a sufficient time while also saving production line area and cost, the positive and negative electrode microsheet soaking device provided in this embodiment greatly reduces the actual production line footprint and saves space by means of the feed tower 1, soaking tower 2 and disturbance device 3 arranged along the first direction a. At the same time, the soaking effect of the positive and negative electrode microsheets can be ensured by controlling the time for the positive and negative electrode microsheets to pass through the soaking tower 2. Furthermore, when passing through the disturbance device 3, the carbon powder in the positive and negative electrode microsheets can be efficiently separated, and the positive and negative electrode microsheets are transported by gravity, without the need for external components, thus saving costs.

[0036] Among them, the positive and negative electrode micro-sheet soaking device provided in this embodiment is mainly used for the processing of positive and negative electrode micro-sheets in lithium batteries. The feed tower 1 is a general term for the device for collecting positive and negative electrode micro-sheets. According to the production capacity and the workshop height, it can be set as a double tower, a triple tower and a quadruple tower structure to meet different needs. The feed tower 1 includes a storage tank 11 and a guide hopper 12, wherein the storage tank 11 is a negative pressure pipe, which sucks the negative electrode by extraction. At the same time, there are two storage tanks 11, and the two storage tanks 11 are separately connected to the external control device. It can be understood that the two storage tanks 11 work separately and discharge separately to ensure the continuous delivery of positive and negative electrode micro-sheets. The release of positive and negative electrode micro-sheets can be controlled by the external controller; the guide hopper 12 is a "Y" type, and the guide hopper 12 connects the storage tank 11 and the soaking tower 2. It can be understood that the connection of the two storage tanks 11 through the guide hopper 12 can avoid the blockage of positive and negative electrode micro-sheets at the connection caused by a single tube, which affects the normal delivery of materials.

[0037] The soaking tower 2 is a general term for a device for soaking positive and negative electrode microsheets. The soaking tower 2 extends along a first direction a and is longitudinally arranged. A water inlet pipe 4 is also provided to add liquid into the soaking tower 2 to soak the positive and negative electrode microsheets in the soaking tower 2.

[0038] The term "and / or" in this article is merely a description of the association relationship of associated objects, identifying three possible relationships. For example, A and / or B is specifically understood as: A and B can be included at the same time, A can exist alone, or B can exist alone, and any of the above three situations can be met.

[0039] In some embodiments, refer to the attached Figure 1 and attached Figure 2, the positive and negative electrode microsheet immersion device provided in this embodiment, in a specific implementation, the immersion tower 2 includes a No. 1 immersion tank 21, a No. 2 immersion tank 22, a No. 3 immersion tank 23, a No. 4 immersion tank and a No. 5 immersion tank 25; the No. 1 immersion tank 21, the No. 2 immersion tank 22, the No. 3 immersion tank 23, the No. 4 immersion tank 24 and the No. 5 immersion tank 25 are connected in sequence along the first direction a, the No. 1 immersion tank 21 is connected to the feeding tower 1, and the side of the No. 1 immersion tank 21 away from the feeding tower 1 is rotatably connected with a discharge plate, wherein the No. 2 immersion tank 22, the No. 3 immersion tank 23, the No. 4 immersion tank 24 and the No. 5 immersion tank 25 have the same structure as the No. 1 immersion tank 21.

[0040] Specifically, in order to ensure the soaking effect of the positive and negative electrode microsheets, the soaking tower 2 in this embodiment includes a soaking tank No. 1 21, a soaking tank No. 2 22, a soaking tank No. 3 23, a soaking tank No. 4 24 and a soaking tank No. 5 25, wherein the soaking tank No. 1 21, the soaking tank No. 2 22, the soaking tank No. 3 23, the soaking tank No. 4 24 and the soaking tank No. 5 25 are connected in sequence along the first direction a, and are all provided with a discharge plate. It can be understood that the material is transported from the feed tower 1 to the inside of the water tank and is soaked in sequence in the order of the soaking tank No. 1 to the soaking tank No. 5 25, and the soaking time of the positive and negative electrode microsheets in each tank is the same. The discharge plate can be controlled by an external controller to control the soaking time. The specific soaking time can be adjusted according to the difference of the positive and negative electrode microsheets. Through this soaking method, not only the material transportation is realized, but also the soaking time and soaking effect are guaranteed.

[0041] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In the specific implementation of the positive and negative electrode microsheet immersion device 3 provided in this embodiment, a water inlet pipe 4 is provided on one side of the No. 1 immersion tank 21, the No. 2 immersion tank 22, the No. 3 immersion tank 23, the No. 4 immersion tank 24 and the No. 5 immersion tank 25; wherein, several water inlet pipes 4 are arranged on the same side relative to the immersion tanks and are connected in sequence.

[0042] Specifically, in order to accurately control the amount of soaking water, in the present embodiment, a water inlet pipe 4 is provided on the same side of the No. 1 soaking tank 21 to the No. 5 soaking tank 25, and each water inlet pipe 4 is connected to each other. It can be understood that when the positive and negative electrode microsheets are moved from the upper soaking tank to the lower soaking tank for soaking, the soaking liquid will be transferred along with the transfer of the positive and negative electrode sheets. However, since the soaking tank unloading plate cannot accurately seal the soaking liquid, the soaking liquid is required to be supplemented through the water inlet pipe corresponding to the soaking tank to ensure the accurate soaking of the positive and negative electrode microsheets. At the same time, a solenoid valve is provided at the feed end of the water inlet pipe, which can control the water inlet time according to an external control signal to control the soaking liquid delivery volume in the soaking tank.

[0043] In some embodiments, refer to the attached Figure 1 and attached Figure 2In the positive and negative electrode microsheet immersion device provided in this embodiment, in a specific implementation, the No. 1 immersion tank 21, the No. 2 immersion tank 22, the No. 3 immersion tank 23, the No. 4 immersion tank 24 and the No. 5 immersion tank 25 are all provided with an overflow pipe 6 on the side different from the water inlet pipe 4; wherein, several overflow pipes 6 are arranged on the same side relative to the immersion tanks and are connected in sequence.

[0044] Specifically, in order to control the amount of water in the soaking tank, in the present embodiment, soaking tank No. 1 21 to soaking tank No. 5 25 are all provided with an overflow pipe 6, and the overflow pipe 6 is arranged opposite to the water inlet pipe, that is, the position of the water inlet pipe 4 relative to the soaking tank is flush with the position of the overflow pipe 6 relative to the soaking tank. It can be understood that when the water inlet pipe 4 adds soaking liquid to the soaking tank, excess soaking liquid will flow out from the overflow pipe to ensure the volume of the soaking liquid in a single soaking tank and avoid random leakage of the soaking liquid. The excess soaking liquid will flow into the next process for recycling.

[0045] Embodiment 2

[0046] This embodiment provides an immersion system, which includes at least one positive and negative electrode microchip immersion device. Specifically, the positive and negative electrode microchip immersion device is the positive and negative electrode microchip immersion device of embodiment 1. Please refer to the description of embodiment 1 for its specific structure and working principle, and no further details will be given here.

[0047] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0048] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A positive and negative electrode micro-sheet immersion device, characterized in that: include: A feeding tower (1), the feeding tower (1) being connected to an external conveying device to receive positive and negative electrode microsheets; A soaking tower (2), the soaking tower (2) extending along a first direction, the soaking tower (2) communicating with the feeding tower (1) along the first direction, and at least one water inlet pipe (4) being provided on one side of the feeding tower (1).

2. A positive and negative electrode microchip immersion device according to claim 1, characterized in that: The soaking tower (2) comprises a No. 1 soaking tank (21), a No. 2 soaking tank (22), a No. 3 soaking tank (23), a No. 4 soaking tank (24) and a No. 5 soaking tank (25); The No. 1 soaking tank (21), the No. 2 soaking tank (22), the No. 3 soaking tank (23), the No. 4 soaking tank (24) and the No. 5 soaking tank (25) are connected in sequence along the first direction, the No. 1 soaking tank (21) is connected to the feeding tower (1), and a discharge plate (3) is rotatably connected to a side of the No. 1 soaking tank (21) away from the feeding tower (1); Wherein, the No. 2 soaking tank (22), the No. 3 soaking tank (23), the No. 4 soaking tank (24) and the No. 5 soaking tank (25) have the same structure as the No. 1 soaking tank (21).

3. A positive and negative electrode microchip soaking device according to claim 2, characterized in that: A water inlet pipe (4) is provided on one side of each of the No. 1 soaking tank (21), the No. 2 soaking tank (22), the No. 3 soaking tank (23), the No. 4 soaking tank (24) and the No. 5 soaking tank (25); Wherein, the plurality of water inlet pipes (4) are arranged on the same side relative to the soaking tank and are connected in sequence.

4. A positive and negative electrode microchip soaking device according to claim 3, characterized in that The feed end of the water inlet pipe (4) is provided with a solenoid valve (5) to control the water inlet time according to an external control signal.

5. A positive and negative electrode microchip soaking device according to claim 2, characterized in that: The first soaking tank (21), the second soaking tank (22), the third soaking tank (23), the fourth soaking tank (24) and the fifth soaking tank (25) are all provided with an overflow pipe (6) on a side different from the water inlet pipe (4); Wherein, the plurality of overflow pipes (6) are arranged on the same side relative to the soaking tank and are connected in sequence.

6. A positive and negative electrode microchip soaking device according to claim 2, characterized in that: The first soaking tank (21), the second soaking tank (22), the third soaking tank (23), the fourth soaking tank (24) and the fifth soaking tank (25) are arranged at the same distance along the first direction to control the water volume of each water tank.

7. The positive and negative electrode microchip soaking device according to claim 1, characterized in that: The feed tower (1) comprises a storage tank (11) and a guide hopper (12); There are two material storage tanks (11), and the two material storage tanks (11) are separately connected to an external control device. The material guide hopper (12) is "Y"-shaped, and the material guide hopper (12) is connected to the material storage tank (11) and the soaking tower (2) to complete the transportation of the positive and negative electrode microsheets.

8. A soaking system, characterized in that: It includes: At least the positive and negative electrode microsheet immersion device as described in any one of claims 1-7.

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