Lithium battery pole piece cutting and dust removing equipment

Abstract

The utility model provides a kind of lithium battery pole piece cutting dust removal equipment, it is related to lithium battery pole piece cutting technical field, including: rack, two mounting plates are fixedly installed in rack top, battery pole piece cutting machine main body is equipped between two mounting plates, rack side is equipped with driving device.This kind of equipment is removed by the dust removal mechanism of setting, removes the static electricity on raw material coiled material, makes the dust on raw material coiled material surface more easily fall off, then again dust on raw material coiled material surface is sucked, so that the lithium battery pole piece cut out is dustless pollution, to facilitate subsequent processing, avoid causing positive and negative micro short circuit, active material drop, cycle life attenuation and other problems.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode cutting technology, specifically a dust removal device for lithium battery electrode cutting. Background Technology

[0002] In the lithium battery manufacturing process, the electrode cutting process is one of the key steps that determines the cell size accuracy, electrochemical performance and safety performance. The core structure of the electrode consists of a metal current collector and an active material layer coated on the surface of the current collector. The active material layer is bonded to the current collector by an adhesive. The overall structure is fragile and has extremely high requirements for surface cleanliness.

[0003] Most existing cutting devices use mechanical die cutting, which physically cuts the electrode raw material rolls with a rolling circular blade. Although no high-temperature dust is generated during cutting, some dust will adhere to the surface of the electrode raw material rolls during production or storage. If dust or cutting debris remains on the electrode surface, it can easily cause problems such as micro-short circuits between the positive and negative electrodes, loss of active materials, and reduction of cycle life during subsequent processing. In severe cases, it may even lead to thermal runaway of the battery cell, threatening the safety of lithium battery use. Utility Model Content

[0004] The purpose of this application is to provide a lithium battery electrode cutting and dust removal device to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a lithium battery electrode cutting and dust removal device, comprising: a frame, two mounting plates fixedly installed on the top of the frame, a battery electrode cutting machine body disposed between the two mounting plates, and a driving device disposed on one side of the frame; A dust removal mechanism is provided between the two mounting plates and is used to remove dust from the battery electrode plates. The dust removal mechanism includes a dust suction cylinder, a fixing plate, a screw sleeve, a screw rod, and a handwheel.

[0006] Furthermore, two symmetrically arranged dust collection cylinders are provided between the inner walls of the two mounting plates on opposite sides. The lower dust collection cylinder is connected to the inner walls of the two mounting plates at opposite ends. A fixing plate is fixedly installed on the top of the two mounting plates. Two screw sleeves are fixedly installed on the fixing plate. A screw rod is threaded inside the screw sleeve. The bottom end of the screw rod is rotatably connected to the top of the upper dust collection cylinder. A handwheel is fixedly installed on the top end of the screw rod.

[0007] Furthermore, two mounting rods are fixedly installed on the top of the frame, and two symmetrically arranged ion fans are fixedly installed between the opposite sides of the two mounting rods.

[0008] Furthermore, an upper top shell is fixedly installed on one side of the two mounting plates near the top, and a lower top shell is provided below the main body of the battery electrode cutting machine. The two ends of the lower top shell are respectively connected to the inner walls of the two mounting plates on opposite sides.

[0009] Furthermore, a dustproof frame is fixedly installed inside the frame, and a collection frame is slidably connected inside the dustproof frame.

[0010] Furthermore, a funnel is fixedly installed at the bottom of the lower top shell, and the bottom of the funnel is connected to the dustproof frame.

[0011] The beneficial effects of this utility model are: The advantage of this invention is that by setting up a dust removal mechanism, static electricity on the raw material roll is removed, making it easier for dust on the surface of the raw material roll to fall off. Then, the dust on the surface of the raw material roll is sucked away, so that the cut lithium battery electrode sheets are free from dust pollution, which facilitates subsequent processing and avoids problems such as positive and negative electrode micro-short circuits, active material shedding, and cycle life decay. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0015] Figure 3 This is a side sectional view of the overall structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the main structure of the battery electrode cutting machine of this utility model.

[0017] Figure 5 This is a schematic diagram of the vacuum cleaner cylinder structure of this utility model.

[0018] The following are the labeling elements in the figure: 1. Frame; 11. Mounting plate; 12. Battery electrode cutting machine body; 13. Drive unit; 2. Dust suction cylinder; 21. Fixing plate; 22. Screw sleeve; 23. Screw; 24. Handwheel; 25. Mounting rod; 26. Ion fan; 3. Upper top shell; 31. Lower top shell; 32. Dustproof frame; 33. Collection frame; 34. Funnel. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] As attached Figure 1 and Figure 2 The lithium battery electrode cutting and dust removal equipment shown includes: a frame 1, with two mounting plates 11 fixedly installed on the top of the frame 1, a battery electrode cutting machine body 12 between the two mounting plates 11, and a drive device 13 on one side of the frame 1; and a dust removal mechanism, which is located between the two mounting plates 11 and is used to remove dust from the battery electrode.

[0022] Specifically: When processing lithium battery electrodes, one side of the raw material roll is placed into the main body 12 of the battery electrode cutting machine. The main body 12 of the battery electrode cutting machine is driven by the drive device 13 to cut the raw material roll and cut out the required lithium battery electrodes. Before cutting the raw material roll, the dust on the raw material roll is removed by the dust removal mechanism to avoid dust adhering to the cut lithium battery electrodes, so as to facilitate subsequent processing.

[0023] As attached Figure 3 and Figure 5 As shown, the dust removal mechanism includes: a dust collection cylinder 2, a fixed plate 21, a screw sleeve 22, a screw rod 23, and a handwheel 24. Two symmetrically arranged dust collection cylinders 2 are provided between the inner walls of the two mounting plates 11 on opposite sides. The lower dust collection cylinder 2 is connected to the inner walls of the two mounting plates 11 at opposite ends. A fixed plate 21 is fixedly installed on the top of the two mounting plates 11. Two screw sleeves 22 are fixedly installed on the fixed plate 21. A screw rod 23 is threadedly connected inside the screw sleeve 22. The bottom end of the screw rod 23 is rotatably connected to the top of the upper dust collection cylinder 2. A handwheel 24 is fixedly installed on the top of the screw rod 23. Two mounting rods 25 are fixedly installed on the top of the frame 1. Two symmetrically arranged ion fans 26 are fixedly installed between the two mounting rods 25 on opposite sides.

[0024] The process involves passing one end of the raw material roll through two ion blowers 26 and two dust collection cylinders 2. Once the ion blowers 26 are activated, they generate a relative flow of positive and negative ions, blowing the raw material roll onto both sides. The static charges generated on the surface of the raw material roll due to friction and induction combine, bringing the net charge on the surface of the object close to zero, ultimately eliminating static electricity and making it easier for dust to detach from the surface of the raw material roll. The suction pipes of the dust collection pump are connected to the output ends of the two dust collection cylinders 2. Once the dust collection pump is activated, the two dust collection cylinders 2 generate suction, and the raw material roll continues to move between the two dust collection cylinders 2, sucking away the dust on the surface of the raw material roll. The clean raw material roll then enters the main body 12 of the battery electrode cutting machine, where it is cut into the required lithium battery electrodes. The cut lithium battery electrodes have a clean, dust-free surface, facilitating subsequent processing.

[0025] As attached Figure 3 and Figure 4 As shown, an upper top shell 3 is fixedly installed on one side of the two mounting plates 11 near the top. A lower top shell 31 is provided below the main body 12 of the battery electrode cutting machine. The two ends of the lower top shell 31 are respectively connected to the inner walls of the two mounting plates 11 on opposite sides. A dustproof frame 32 is fixedly installed inside the frame 1. A collection frame 33 is slidably connected inside the dustproof frame 32. A funnel 34 is fixedly installed at the bottom of the lower top shell 31. The bottom of the funnel 34 is connected to the dustproof frame 32.

[0026] Specifically, the upper top shell 3 and the lower top shell 31 cover the main body 12 of the battery electrode cutting machine, which protects the lithium battery electrode, prevents secondary dust accumulation, and prevents the operator's limbs from entering the main body 12 of the battery electrode cutting machine. The cut lithium battery electrode falls into the funnel 34, flows through the funnel 34 into the dustproof frame 32, and finally falls into the collection frame 33.

[0027] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lithium battery electrode cutting and dust removal device, characterized in that, include: A frame (1) is provided with two mounting plates (11) fixedly installed on the top of the frame (1), and a battery electrode cutting machine body (12) is provided between the two mounting plates (11). A drive device (13) is provided on one side of the frame (1). The dust removal mechanism is located between the two mounting plates (11) and is used to remove dust from the battery electrode. The dust removal mechanism includes: a dust suction cylinder (2), a fixing plate (21), a screw sleeve (22), a screw (23) and a handwheel (24).

2. The lithium battery electrode cutting and dust removal equipment according to claim 1, characterized in that, Two symmetrically arranged dust collection tubes (2) are provided between the inner walls of the two mounting plates (11) on opposite sides. The lower dust collection tube (2) is connected to the inner walls of the two mounting plates (11) at opposite ends. A fixing plate (21) is fixedly installed on the top of the two mounting plates (11). Two screw sleeves (22) are fixedly installed on the fixing plate (21). A screw rod (23) is threaded inside the screw sleeve (22). The bottom end of the screw rod (23) is rotatably connected to the top of the upper dust collection tube (2). A handwheel (24) is fixedly installed on the top end of the screw rod (23).

3. The lithium battery electrode cutting and dust removal equipment according to claim 1, characterized in that, Two mounting rods (25) are fixedly installed on the top of the frame (1), and two symmetrically arranged ion fans (26) are fixedly installed between the opposite sides of the two mounting rods (25).

4. The lithium battery electrode cutting and dust removal equipment according to claim 1, characterized in that, An upper top shell (3) is fixedly installed on one side of the two mounting plates (11) near the top. A lower top shell (31) is provided below the main body (12) of the battery electrode cutting machine. The two ends of the lower top shell (31) are respectively connected to the inner walls of the two mounting plates (11) on opposite sides.

5. The lithium battery electrode cutting and dust removal equipment according to claim 4, characterized in that, A dustproof frame (32) is fixedly installed inside the frame (1), and a collection frame (33) is slidably connected inside the dustproof frame (32).

6. The lithium battery electrode cutting and dust removal equipment according to claim 5, characterized in that, A funnel (34) is fixedly installed at the bottom of the lower top shell (31), and the bottom of the funnel (34) is connected to the dustproof frame (32).

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