Lithium ion battery pole piece slurry coating removing equipment

Abstract

The utility model provides lithium ion battery pole piece slurry coating removing equipment, and belongs to the field of new energy batteries. The equipment comprises a base, a vertical guide rail, a sliding block, a rotating motor, a connecting rod, a cleaning head and a pressing device, the vertical guide rail is vertically arranged on the base, the sliding block is slidably arranged on the vertical guide rail, the rotating motor is fixedly arranged on the sliding block, the connecting rod is vertically arranged and connected with a motor shaft of the rotating motor, and the cleaning head is arranged at the bottom of the connecting rod. By adopting the lithium ion battery pole piece slurry coating removing equipment provided by the embodiment of the utility model, the problems of relatively low scraping efficiency and relatively low quality in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of new energy batteries, and particularly relates to a device for removing the slurry coating on the lithium-ion battery electrode sheet. Background Art

[0002] With the wide application of lithium-ion batteries, the research on lithium-ion batteries has also increased day by day. Among them, the battery cell is an important component structure of the lithium-ion battery, and the research on the field of battery cell failure is particularly important. When studying the problems related to battery cell failure, it is usually necessary to fabricate an electrode sheet with a slurry coating on one side and no slurry coating on the other side to analyze the cause of battery cell failure. However, during the process of attaching the slurry coating to the electrode sheet, the slurry coating is usually attached to both sides of the electrode sheet. Therefore, it is necessary to remove the slurry coating on one side of the electrode sheet to achieve the electrode sheet structure that meets the experimental requirements.

[0003] In the prior art, the slurry coating on one side of the electrode sheet is usually scraped off manually. This method has low efficiency and low scraping quality, and there may be some slurry coatings that are not removed cleanly.

[0004] The method for removing the slurry coating on the battery electrode sheet in the prior art has low scraping efficiency and low quality. Summary of the Utility Model

[0005] The embodiment of the utility model provides a device for removing the slurry coating on the lithium-ion battery electrode sheet, which can solve the problems of low scraping efficiency and low quality in the prior art. The technical solution is as follows:

[0006] A device for removing the slurry coating on the lithium-ion battery electrode sheet includes: a base, a vertical guide rail, a slider, a rotating motor, a connecting rod, a cleaning head and a pressing device.

[0007] The vertical guide rail is vertically arranged on the base, the slider is slidably arranged on the vertical guide rail, the rotating motor is fixedly arranged on the slider, the connecting rod is vertically arranged and connected to the motor shaft of the rotating motor, and the cleaning head is arranged at the bottom of the connecting rod.

[0008] The pressing device includes a first limiting block, a spring, a pressing ring and a second limiting block. The first limiting block is arranged on the connecting rod, the spring is sleeved on the connecting rod, one end of the spring is connected to the bottom of the first limiting block, the other end of the spring is connected to the second limiting block, the second limiting block is slidably arranged on the connecting rod, the second limiting block is fixedly connected to the pressing ring, the pressing ring is parallel to the base, and the cleaning head is located in the middle of the pressing ring.

[0009] Optionally, a third limiting block is arranged on the connecting rod, and the third limiting block is located below the second limiting block.

[0010] Optionally, the distance between the first limiting block and the third limiting block is adjustable.

[0011] Optionally, a rubber ring is provided at the bottom of the pressing ring.

[0012] Optionally, the cleaning head is detachably connected to the connecting rod.

[0013] Optionally, the cleaning head includes a base and a friction part. An installation groove is formed at the bottom of the base, and an installation protrusion matching the installation groove is provided at the top of the friction part.

[0014] Optionally, double-sided tape is provided at the bottom of the friction part.

[0015] Optionally, dust-free paper is provided on the base.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include:

[0017] A lithium-ion battery pole piece slurry coating removing device provided by an embodiment of the present invention is provided with a rotating motor, a connecting rod, a cleaning head and a pressing device that move in the vertical direction. After the pole piece is placed on the base, when the slider moves along the vertical guide rail towards the base, the pressing ring contacts the upper surface of the pole piece. At this time, when the slider continues to move towards the base, under the action of the first limiting block, the spring and the second limiting block, the pressing ring presses the pole piece against the base, and the cleaning head continues to descend and contact the surface of the pole piece. Then the rotating motor is turned on to make the cleaning head rotate and rub on the surface of the pole piece, scraping off the slurry coating on the pole piece, which can effectively solve the problems of low scraping efficiency and low quality in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is the overall structural schematic diagram provided by the embodiment of the present invention;

[0020] Figure 2 is the structural schematic diagram of the cleaning head provided by the embodiment of the present invention;

[0021] Figure 3 is the top view schematic diagram of the cooperation between the cleaning head and the pressing ring provided by the embodiment of the present invention.

[0022] In the figure: 1 - base; 2 - vertical guide rail; 3 - slider; 4 - rotating motor; 5 - connecting rod; 6 - cleaning head; 61 - base; 611 - mounting groove; 62 - friction part; 621 - mounting protrusion; 63 - double-sided tape; 7 - pressing device; 71 - first limiting block; 72 - spring; 73 - pressing ring; 74 - second limiting block; 75 - third limiting block; 76 - rubber ring; 8 - dust-free paper; 9 - electrode plate. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0024] Figure 1 is a schematic diagram of the overall structure provided by an embodiment of the present utility model; Figure 2 is a schematic diagram of the cleaning head structure provided by an embodiment of the present utility model; Figure 3 is a top view schematic diagram of the cooperation between the cleaning head and the pressing ring provided by an embodiment of the present utility model. As Figures 1 to 3 shown, a device for removing the slurry coating on the electrode plate of a lithium-ion battery includes: a base 1, a vertical guide rail 2, a slider 3, a rotating motor 4, a connecting rod 5, a cleaning head 6 and a pressing device 7. The vertical guide rail 2 is vertically arranged on the base 1, the slider 3 is slidably arranged on the vertical guide rail 2, the rotating motor 4 is fixedly arranged on the slider 3, the connecting rod 5 is vertically arranged and connected to the motor shaft of the rotating motor 4, the cleaning head 6 is arranged at the bottom of the connecting rod 5, the pressing device 7 includes a first limiting block 71, a spring 72, a pressing ring 73 and a second limiting block 74. The first limiting block 71 is arranged on the connecting rod 5, the spring 72 is sleeved on the connecting rod 5, one end of the spring 72 is connected to the bottom of the first limiting block 71, the other end of the spring 72 is connected to the second limiting block 74, the second limiting block 74 is slidably arranged on the connecting rod 5, the second limiting block 74 is fixedly connected to the pressing ring 73, the pressing ring 73 is parallel to the base 1, and the cleaning head 6 is located in the middle of the pressing ring 73.

[0025] Exemplarily, in the embodiment of the present utility model, as Figure 1As shown, the second limiting block 74 and the pressing ring 73 are fixedly connected by an arc-shaped skeleton to form an inverted hopper-shaped skeleton structure. At the beginning of the working process, the electrode plate 9 is placed on the base 1. By adjusting the position of the slider 3 on the vertical guide rail 2, the slider 3 moves towards the base 1. At this time, the rotating motor 4, the connecting rod 5, the cleaning head 6 and the pressing device 7 will all move downward. The pressing ring 73 will first contact the electrode plate 9. When the slider 3 continues to slide towards the base 1, due to the structure of the pressing device 7, the spring 72 will be compressed, and the connecting rod 5 will carry the first limiting block 71 and continue to move downward inside the pressing ring 73, so that the cleaning head 6 also continues to move towards the electrode plate 9 on the base 1 until the cleaning head 6 contacts the surface of the electrode plate 9. Then the rotating motor 4 is turned on, so that the cleaning head 6 rotates and rubs on the surface of the electrode plate 9 to scrape off the slurry coating on the surface of the electrode plate 9. Compared with the traditional technology, when manually scraping the slurry coating on the surface of the electrode plate 9, some of the slurry coating may not be scraped clean. The slurry coating removing device for the lithium-ion battery electrode plate 9 in the embodiment of the present utility model presses and scrapes the electrode plate 9 simultaneously by the downward movement of the slider 3, thereby improving the scraping efficiency and quality.

[0026] A slurry coating removing device for a lithium-ion battery electrode plate provided in an embodiment of the present utility model is provided with a rotating motor 4, a connecting rod 5, a cleaning head 6 and a pressing device 7 that move in the vertical direction. After the electrode plate 9 is placed on the base 1, when the slider 3 moves along the vertical guide rail 2 towards the base 1, the pressing ring 73 contacts the upper surface of the electrode plate 9. At this time, when the slider 3 continues to move towards the base 1, under the action of the first limiting block 71, the spring 72 and the second limiting block 74, the pressing ring 73 presses the electrode plate 9 against the base 1, and the cleaning head 6 continues to descend and contact the surface of the electrode plate 9. Then the rotating motor 4 is turned on to make the cleaning head 6 rotate and rub on the surface of the electrode plate 9 to scrape off the slurry coating on the electrode plate 9, which can effectively solve the problems of low scraping efficiency and low quality in the prior art.

[0027] Optionally, a third limiting block 75 is provided on the connecting rod 5, and the third limiting block 75 is located below the second limiting block 74.

[0028] Exemplarily, in the embodiment of the present utility model, in the initial state, due to the gravitational action of the second limiting block 74 and the pressing ring 73, the spring 72 is in a stretched state. When the weight of the second limiting block 74 and the pressing ring 73 is too large, the pressing ring 73 may already be pressed on the base 1, making it difficult to place the electrode plate 9 on the base 1. By providing the third limiting block 75, the spring 72 is in a certain length in the initial state, so that the operation of placing the electrode plate 9 is more convenient, thereby improving the operation convenience of the slurry coating removing device for the lithium-ion battery electrode plate.

[0029] Optionally, the distance between the first limiting block 71 and the third limiting block 75 is adjustable.

[0030] Exemplarily, in the embodiment of the present invention, by adjusting the distance between the first limiting block 71 and the third limiting block 75, when the cleaning head 6 performs scraping work on the pole piece 9, the pressure of the pressing ring 73 on the pole piece 9 and the pressure of the cleaning head 6 on the pole piece 9 can be adjusted, thereby preventing the pressure of the pressing ring 73 or the cleaning head 6 on the pole piece 9 from being too large and damaging the structure of the pole piece 9, and also preventing the pressure of the pressing ring 73 on the pole piece 9 from being too small and causing the pole piece 9 to shake during the processing, thereby improving the stability of the lithium-ion battery pole piece slurry coating removing device.

[0031] Optionally, a rubber ring 76 is provided at the bottom of the pressing ring 73.

[0032] Exemplarily, in the embodiment of the present invention, by providing a rubber ring 76 at the bottom of the pressing ring 73, when the pressing ring 73 presses the pole piece 9, it is possible to prevent the pressure of the pressing ring 73 on the pole piece 9 from being too large and damaging the pole piece 9. At the same time, since the rubber material has an anti-slip function, the pressing ring 73 can also better press the pole piece 9, thereby further improving the stability of the lithium-ion battery pole piece slurry coating removing device.

[0033] Optionally, the cleaning head 6 is detachably connected to the connecting rod 5.

[0034] Exemplarily, in the embodiment of the present invention, since the cleaning head 6 rubs against the pole piece 9, the cleaning head 6 may be worn due to excessive use. By detachably connecting the cleaning head 6 to the connecting rod 5, the cleaning head 6 can be replaced, so that the cleaning head 6 can always maintain the best state to scrape the pole piece 9, thereby further improving the stability of the lithium-ion battery pole piece slurry coating removing device.

[0035] Optionally, the cleaning head 6 includes a base 61 and a friction part 62. An installation groove 611 is formed at the bottom of the base 61, and an installation protrusion 621 matching the installation groove 611 is provided at the top of the friction part 62.

[0036] Exemplarily, in the embodiment of the present invention, the cleaning head 6 is set to a two-section structure. The base 61 can be fixedly arranged at the bottom of the connecting rod 5, and the friction part 62 is installed on the base 61 through the installation groove 611 and the installation protrusion 621. The friction part 62 is detachably connected to the base 61, so that the friction part 62 can be replaced. When the friction part 62 is worn, a new friction part 62 can be replaced to continue working. At the same time, the friction part 62 can also be provided with multiple different structures. For example, the friction part 62 can be made of a softer material such as rubber, or replaceable dust-free paper, cotton sheet, etc. to wipe the slurry coating on the pole piece 9, or a harder object such as ceramic can be used to scrape the slurry coating for sampling. With this structure, the versatility of the lithium-ion battery pole piece slurry coating removing device is improved.

[0037] Optionally, a double-sided adhesive 63 is provided at the bottom of the friction part 62.

[0038] Exemplarily, in the embodiment of the present invention, by providing a double-sided adhesive 63 at the bottom of the friction part 62, the slider 3 can be controlled to slide repeatedly on the vertical guide rail 2 to control the up and down movement of the cleaning head 6, and repeatedly stick to and separate from the surface of the pole piece 9, and the slurry coating on the surface of the pole piece 9 can be removed by sticking. By providing the double-sided adhesive 63, a new movement method is provided to remove the slurry coating on the surface of the pole piece 9, thereby improving the practicability of the lithium-ion battery pole piece slurry coating removal device.

[0039] Optionally, a dust-free paper 8 is provided on the base 1.

[0040] Exemplarily, in the embodiment of the present invention, since the pole piece 9 needs to keep the slurry coating on one side and remove the slurry coating on the other side, in order to keep the slurry coating on the side in contact with the base 1 intact and clean, a dust-free paper 8 is provided on the base 1, which improves the quality of the pole piece produced by the lithium-ion battery pole piece slurry coating removal device.

[0041] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The "first", "second" and similar terms used in the description and claims of the present patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0042] The above are only optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lithium-ion battery electrode sheet slurry coating removal device, characterized in that, Comprising: a base (1), a vertical guide rail (2), a slider (3), a rotating motor (4), a connecting rod (5), a cleaning head (6) and a pressing device (7), the vertical guide rail (2) is vertically arranged on the base (1), the slider (3) is slidably arranged on the vertical guide rail (2), the rotating motor (4) is fixedly arranged on the slider (3), the connecting rod (5) is vertically arranged and connected to the motor shaft of the rotating motor (4), and the cleaning head (6) is arranged at the bottom of the connecting rod (5), the pressing device (7) includes a first limiting block (71), a spring (72), a pressing ring (73) and a second limiting block (74). The first limiting block (71) is arranged on the connecting rod (5), the spring (72) is sleeved on the connecting rod (5), one end of the spring (72) is connected to the bottom of the first limiting block (71), the other end of the spring (72) is connected to the second limiting block (74), the second limiting block (74) is slidably arranged on the connecting rod (5), the second limiting block (74) is fixedly connected to the pressing ring (73), the pressing ring (73) is parallel to the base (1), and the cleaning head (6) is located in the middle of the pressing ring (73).

2. The lithium-ion battery electrode sheet slurry coating removing device according to claim 1, wherein A third limiting block (75) is arranged on the connecting rod (5), and the third limiting block (75) is located below the second limiting block (74).

3. The lithium-ion battery electrode sheet slurry coating removal device according to claim 2, characterized in that, The distance between the first limiting block (71) and the third limiting block (75) is adjustable.

4. A lithium-ion battery electrode slurry coating removal device according to claim 1, characterized in that A rubber ring (76) is arranged at the bottom of the pressing ring (73).

5. A lithium-ion battery electrode slurry coating removal device according to claim 1, characterized in that, The cleaning head (6) is detachably connected to the connecting rod (5).

6. The lithium-ion battery electrode sheet slurry coating removing device according to claim 1, wherein The cleaning head (6) includes a base (61) and a friction part (62). An installation groove (611) is formed at the bottom of the base (61), and an installation protrusion (621) matching the installation groove (611) is arranged at the top of the friction part (62).

7. The lithium-ion battery electrode sheet slurry coating removing device according to claim 6, characterized in that, A double-sided adhesive (63) is arranged at the bottom of the friction part (62).

8. A lithium-ion battery electrode paste coating removal device according to claim 1, characterized in that, A dust-free paper (8) is arranged on the base (1).

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