Recycling device for waste electrolyte of lithium ion battery

Abstract

The utility model relates to a recycling device for waste electrolyte of a lithium ion battery, and belongs to the technical field of lithium battery processing. A cover plate is detachably mounted at the top end of the filter, a long rod is inserted into the inner wall of the filter, an insertion block is inserted into the inner wall of the long rod, a guide rod is fixedly connected to the inner wall of the insertion block, a limiting mechanism is arranged on the inner wall of the insertion block, a clamping groove is formed in the inner wall of the long rod, and a filter screen is fixedly connected to the outer wall of the insertion block. An adjusting assembly is arranged on the outer wall of the filter, and the limiting mechanism comprises an inclined plate. According to the utility model, a plurality of filter screens are adopted to carry out graded filtration on the lithium battery electrolyte, so that the filtration precision can be effectively improved, impurities can be accurately removed, and when the filter screens need to be replaced or cleaned, the long rod, the separation inclined plate and the clamping groove can be easily moved out, so that the rapid replacement of the single filter screen is realized, and the maintenance time and cost are greatly reduced; the continuous and efficient operation of the filtering process is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery processing, specifically to a device for recycling waste electrolyte from lithium-ion batteries. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as electrode materials and a non-aqueous electrolyte solution. The electrolyte in a lithium-ion battery is the carrier of ions; during operation, it plays a crucial role in conducting ions between the positive and negative electrodes, enabling the battery to charge and discharge. Lithium-ion battery electrolytes are generally prepared under specific conditions and in specific proportions from high-purity organic solvents, lithium electrolyte salts, and necessary additives. During the production or use of lithium-ion batteries, the electrolyte may be contaminated. For example, tiny particulate impurities from the production environment and powder shed from electrode materials during cycling can contaminate the electrolyte. To ensure the quality of subsequent use, filters are required.

[0003] Existing filters for recycling lithium battery electrolyte have the following drawbacks: some existing filters use a single-layer filtration method to complete the electrolyte process. The pore size accuracy of a single-layer filter is limited, and it can only intercept relatively large particulate impurities, such as dust and debris visible to the naked eye in the production environment. However, smaller impurities require subsequent filtration using other filtration devices, which reduces the practicality of the device to some extent. Therefore, a lithium-ion battery waste electrolyte recycling device is proposed to solve the above problems. Utility Model Content

[0004] In view of the problem that some existing technologies using single-layer filters cannot achieve the desired filtration effect, this utility model provides a recycling device for waste electrolyte from lithium-ion batteries to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for recycling waste electrolyte from lithium-ion batteries includes a filter with a removable cover plate installed at the top. A long rod is inserted into the inner wall of the filter. A block is inserted into the inner wall of the long rod. A guide rod is fixedly connected to the inner wall of the block. A limiting mechanism is provided on the inner wall of the block. A slot is formed on the inner wall of the long rod. A filter screen is fixedly connected to the outer wall of the block. An adjustment component is provided on the outer wall of the filter. The limiting mechanism includes an inclined plate that passes through and is slidably connected to the inner wall of the block. The bottom end of the inclined plate is elastically connected to the block via a return spring.

[0007] Furthermore, the adjustment assembly includes a slider, a threaded rod is threadedly connected to the middle of the slider, a support frame is rotatably connected to the outer wall of the threaded rod, and the slider is fixedly connected to the outer wall of the filter.

[0008] Furthermore, the slider is slidably connected to the inner wall of the support frame.

[0009] Furthermore, the bottom end of the inclined plate is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the inner wall of the top end of the insert block.

[0010] Furthermore, the inclined plate is inserted into the inner wall of the slot.

[0011] Furthermore, the inclined plate is slidably connected to the outer wall of the guide rod.

[0012] Furthermore, the outer wall of the filter screen is in contact with the inner wall of the filter.

[0013] Furthermore, the bottom end of the cover plate contacts the top end of the long rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This utility model uses multiple filter screens to perform graded filtration of lithium battery electrolyte, which can effectively improve filtration accuracy and accurately remove impurities. Moreover, when it is necessary to replace or clean the filter screen, the long rod, the separation plate and the slot can be easily removed to realize the quick replacement of a single filter screen, greatly reducing maintenance time and cost, and ensuring the continuous and efficient operation of the filtration process.

[0016] (2) This utility model allows the slider to move flexibly up and down along the support frame by rotating the threaded rod, which makes it convenient to adjust the height of the filter according to the actual use scenario. Whether it is adjusted up or down, the pipe on the cover plate can be accurately connected to other pipes, optimizing the connection convenience of the whole system and ensuring the smooth progress of the electrolyte recovery process. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0018] Figure 1 This is a three-dimensional schematic diagram of a lithium-ion battery waste electrolyte recycling device proposed in this utility model.

[0019] Figure 2 This is an exploded schematic diagram of a lithium-ion battery waste electrolyte recycling device and a cover plate according to the present invention.

[0020] Figure 3 This is a schematic cross-sectional view of the filter of a lithium-ion battery waste electrolyte recycling device proposed in this utility model.

[0021] Figure 4 This is a detailed anatomical view of the long rod and insert block of a lithium-ion battery waste electrolyte recycling device proposed in this utility model.

[0022] Figure 5 This is a schematic cross-sectional view of the support rod of a lithium-ion battery waste electrolyte recycling device proposed in this utility model.

[0023] In the diagram: 1-Filter; 2-Cover plate; 3-Long rod; 4-Insertion block; 5-Guide rod; 6-Reset spring; 7-Sloping plate; 8-Slot; 9-Filter screen; 10-Support frame; 11-Threaded rod; 12-Slider. Detailed Implementation

[0024] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] The method involved in this utility model will be described in detail below. Specific details, such as particular system structures and techniques, are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this utility model. However, those skilled in the art will understand that this utility model can also be implemented in other embodiments without these specific details.

[0026] In this invention, the terms "one embodiment" or "some embodiments" mean that one or more embodiments of this invention include the specific features, structures, or characteristics described in that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this invention do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1-4 As shown, a lithium-ion battery waste electrolyte recycling device includes a filter 1. A cover plate 2 is detachably installed on the top of the filter 1. The cover plate 2 has a pipe that allows lithium battery electrolyte to enter the filter 1. A long rod 3 is inserted into the inner wall of the filter 1. The filter 1 has corresponding slots for the long rod 3, allowing the long rod 3 to be inserted into the filter 1 to place a filter screen 9. A block 4 is inserted into the inner wall of the long rod 3. A guide rod 5 is fixedly connected to the inner wall of the block 4, allowing the inclined plate 7 to move vertically without deviation. A limit mechanism is provided on the inner wall of the block 4. A slot 8 is provided on the inner wall of the long rod 3. A filter screen 9 is fixedly connected to the outer wall of the block 4. Multiple filter screens 9 are provided, with different pore sizes from top to bottom, allowing for graded filtration of the lithium battery electrolyte to improve its filtration effect. An adjustment component is provided on the outer wall of the filter 1.

[0030] The limiting mechanism includes an inclined plate 7, which is inclined. When the inclined plate is squeezed, it will move. The inclined plate 7 passes through and is slidably connected to the inner wall of the insert block 4. The insert block 4 has a corresponding slot for the inclined plate 7, which can satisfy the vertical movement of the inclined plate 7 along the insert block 4. The bottom end of the inclined plate 7 is elastically connected to the insert block 4 through a return spring 6.

[0031] Example 2

[0032] like Figures 1-5 As shown, a lithium-ion battery waste electrolyte recycling device includes a filter 1. A cover plate 2 is detachably installed on the top of the filter 1. The cover plate 2 has a pipe. A long rod 3 is inserted into the inner wall of the filter 1. The filter 1 has slots corresponding to the long rod 3. An insert block 4 is inserted into the inner wall of the long rod 3. A guide rod 5 is fixedly connected to the inner wall of the insert block 4. A limiting mechanism is provided on the inner wall of the insert block 4. A slot 8 is provided on the inner wall of the long rod 3. A filter screen 9 is fixedly connected to the outer wall of the insert block 4. Multiple filter screens 9 are provided, and the pore size of the filter screens 9 from top to bottom is different. An adjustment component is provided on the outer wall of the filter 1. The limiting mechanism includes an inclined plate 7. The inclined plate 7 passes through and is slidably connected to the inner wall of the insert block 4. The bottom end of the inclined plate 7 is elastically connected to the insert block 4 through a return spring 6.

[0033] The adjustment assembly includes a slider 12, the middle of which has a texture corresponding to the threaded rod 11, allowing the slider 12 to move up and down along the outer wall of the threaded rod 11. The middle of the slider 12 is threadedly connected to the threaded rod 11, and the outer wall of the threaded rod 11 is rotatably connected to a support frame 10. The support frame 10 has weight and can support the entire filter 1. The slider 12 is fixedly connected to the outer wall of the filter 1 and slidably connected to the inner wall of the support frame 10. The support frame 10 has a slot, which allows the slider 12 to move vertically along the slot of the support frame 10.

[0034] Example 3

[0035] like Figures 1-5 As shown, a lithium-ion battery waste electrolyte recycling device includes a filter 1. A cover plate 2 is detachably installed on the top of the filter 1. The cover plate 2 has a pipe. A long rod 3 is inserted into the inner wall of the filter 1. The filter 1 has slots corresponding to the long rod 3. An insert block 4 is inserted into the inner wall of the long rod 3. A guide rod 5 is fixedly connected to the inner wall of the insert block 4. A limiting mechanism is provided on the inner wall of the insert block 4. The limiting mechanism includes an inclined plate 7. The inclined plate 7 passes through and is slidably connected to the inner wall of the insert block 4. The bottom end of the inclined plate 7 is elastically connected to the insert block 4 via a return spring 6. The inner wall of the long rod 3... The filter 1 has a slot 8 on its wall, and a filter screen 9 is fixedly connected to the outer wall of the insert block 4. Multiple filter screens 9 are provided, and the pore size of the filter screens 9 from top to bottom is different. An adjustment component is provided on the outer wall of the filter 1. The adjustment component includes a slider 12. The middle part of the slider 12 has a pattern corresponding to the threaded rod 11. The middle part of the slider 12 is threadedly connected to the threaded rod 11. The outer wall of the threaded rod 11 is rotatably connected to a support frame 10. The slider 12 is fixedly connected to the outer wall of the filter 1 and slidably connected to the inner wall of the support frame 10. The support frame 10 has a slot.

[0036] The bottom end of the inclined plate 7 is fixedly connected to one end of the return spring 6. When the inclined plate 7 moves downward, it will compress the return spring 6. When resetting, the elastic force of the return spring 6 will bring the inclined plate 7 back to its original position. The other end of the return spring 6 is fixedly connected to the inner wall of the top of the insert block 4. The inclined plate 7 is inserted into the inner wall of the slot 8. The slot 8 corresponds to the inclined plate 7, allowing the inclined plate 7 to be inserted into the inner wall of the slot 8. The inclined plate 7 is slidably connected to the outer wall of the guide rod 5. The outer wall of the filter screen 9 is in contact with the inner wall of the filter 1. The bottom end of the cover plate 2 is in contact with the top end of the long rod 3. The long rod 3 can be pressed tightly by the cover plate 2, so that the positions of the long rod 3 and the filter screen 9 will not change.

[0037] The working principle of this utility model is as follows: First, when filtering lithium battery electrolyte, simply inject the lithium battery electrolyte into the filter 1 through the pipe on the cover plate 2, and filter the lithium battery electrolyte in stages through multiple filter screens 9. When the filter screens 9 need to be replaced or cleaned, the cover plate 2 can be opened so that the cover plate 2 no longer obstructs the long rod 3, and the long rod 3 can be moved out of the filter 1. Then, the inclined plate 7 is moved downward and the return spring 6 is compressed, so that the inclined plate 7 and the inner wall of the slot 8 are separated. Then, the insert block 4 is inserted from the long rod 3. The opening is moved outwards, and finally the inclined plate 7 is released. The reverse elastic force of the return spring 6 is used to reset the inclined plate 7. This allows for the replacement of a single filter screen 9. When the filter screen 9 needs to be installed, simply insert the insert block 4 into the opening of the long rod 3, so that the side wall of the long rod 3 presses against the inclined surface of the inclined plate 7, causing the inclined plate 7 to move downwards and compress the return spring 6. When the inclined plate 7 and the inner wall of the slot 8 overlap, the reverse elastic force of the return spring 6 is used to reset the inclined plate 7, allowing the inclined plate 7 to be inserted into the inner wall of the slot 8 to complete the installation of the filter screen 9.

[0038] During the use of the entire filter 1, if the height of the filter 1 needs to be adjusted to facilitate the connection of the pipe on the cover plate 2 with other pipes, simply rotate the threaded rod 11 to move the slider 12 and the entire filter 1 upward along the support frame 10. The height of the entire filter 1 can be adjusted according to the pipe and connection situation on the cover plate 2. For example, to adjust the filter 1 downward, simply rotate the threaded rod 11 in the opposite direction to move the slider 12 and the filter 1 downward along the support frame 10.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for recycling waste electrolyte from lithium-ion batteries, comprising a filter (1), characterized in that: The filter (1) is detachably fitted with a cover plate (2), a long rod (3) is inserted into the inner wall of the filter (1), a plug (4) is inserted into the inner wall of the long rod (3), a guide rod (5) is fixedly connected to the inner wall of the plug (4), a limit mechanism is provided on the inner wall of the plug (4), a slot (8) is opened on the inner wall of the long rod (3), a filter screen (9) is fixedly connected to the outer wall of the plug (4), and an adjustment component is provided on the outer wall of the filter (1). The limiting mechanism includes an inclined plate (7), which is slidably connected to the inner wall of the insert (4) through and slidably connected to the insert (4). The bottom end of the inclined plate (7) is elastically connected to the insert (4) through a reset spring (6).

2. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The adjustment assembly includes a slider (12), a threaded rod (11) is threadedly connected to the middle of the slider (12), a support frame (10) is rotatably connected to the outer wall of the threaded rod (11), and the slider (12) is fixedly connected to the outer wall of the filter (1).

3. The lithium-ion battery waste electrolyte recycling device as described in claim 2, characterized in that: The slider (12) is slidably connected to the inner wall of the support frame (10).

4. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The bottom end of the inclined plate (7) is fixedly connected to one end of the reset spring (6), and the other end of the reset spring (6) is fixedly connected to the inner wall of the top end of the insert (4).

5. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The inclined plate (7) is inserted into the inner wall of the slot (8).

6. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The inclined plate (7) is slidably connected to the outer wall of the guide rod (5).

7. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The outer wall of the filter screen (9) is in contact with the inner wall of the filter (1).

8. The lithium-ion battery waste electrolyte recycling device as described in claim 1, characterized in that: The bottom end of the cover plate (2) is in contact with the top end of the long rod (3).

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