Battery pole piece sampler

Abstract

The utility model belongs to the field of battery cell manufacturing, and particularly relates to a battery pole piece sampler which comprises a supporting base, a cross arm with one end rotationally connected with the supporting base and a cutting assembly arranged on the cross arm and capable of being adjusted in position in the length direction of the cross arm. By adjusting the position of the cutting assembly on the cross arm and changing the distance between the cutting assembly and the supporting base, the circle taking radius can be changed, and then cutting of circular pole piece samples of different sizes is achieved.

Description

Technical Field

[0001] This application relates to the field of battery cell manufacturing technology, and in particular to a battery electrode sampler. Background Technology

[0002] In the lithium battery coating process, the control of electrode surface density is extremely strict. The size of the surface density directly affects the battery performance. Therefore, in addition to the conventional online monitoring by the surface density detector, manual re-inspection is also an essential step. Manual re-inspection usually uses the method of taking a fixed circle with the equipment and calculating the size of the electrode surface density by dividing the weight by the area.

[0003] Existing technologies typically employ sampling instruments such as those shown in patents CN219495701U and CN217237289U, which are used to sample circles of a fixed area. The size and area of ​​the sampled circle cannot be changed. If it is necessary to change the size of the sampled circle, a sampler of the corresponding size must be replaced, which is costly and time-consuming. Utility Model Content

[0004] This application provides a battery electrode sampler designed to allow for rapid changes in the sampling circle diameter and is easy to operate.

[0005] To achieve the above objectives, this application provides a battery electrode sampler, comprising:

[0006] Support base;

[0007] A horizontal arm, one end of which is rotatably connected to the support base;

[0008] A cutting component is disposed on the cross arm and its position is adjustable along the length of the cross arm;

[0009] The cross arm can rotate in a plane around the support base, thereby cutting out circular electrode samples from the electrode sheet through the cutting assembly.

[0010] Optionally, the cutting assembly includes a mounting carrier, a fastener, a blade holder, and a blade. The mounting carrier is slidably disposed on the cross arm along the length direction of the cross arm. The fastener is disposed on the mounting carrier and can be locked between the mounting carrier and the cross arm by adjusting the fastener. The blade holder is disposed on the mounting carrier, and the blade is fixed on the blade holder.

[0011] Optionally, the mounting carrier is annular and slidably sleeved on the cross arm. The fastener is a fastening screw. The mounting carrier has a threaded mounting hole, and the fastening screw is disposed in the threaded mounting hole. By screwing the fastening screw, it abuts against the outer side of the cross arm, thereby locking the mounting carrier and the cross arm together.

[0012] Optionally, the cutting edge of the blade is perpendicular to the length direction of the cross arm.

[0013] Optionally, the cross-section of the cross arm is rectangular, and the mounting carrier is a rectangular ring structure.

[0014] Optionally, the cross arm is provided with length scale lines along its length direction.

[0015] Optionally, the bottom of the support base is provided with a suction cup or a self-adhesive silicone pad.

[0016] Optionally, the support base includes a circular base plate and a fixed shaft arranged perpendicular to the center of the circular base plate. One end of the cross arm is provided with a rotating sleeve, the axial direction of which is perpendicular to the length direction of the cross arm, and the rotating sleeve is coaxially sleeved on the fixed shaft.

[0017] Optionally, a plurality of washers are provided between the rotating sleeve and the circular base plate, and the height between the cross arm and the circular base plate can be adjusted by adding or removing the washers.

[0018] The beneficial effects of the battery electrode sampler provided in this application are as follows: Compared with the prior art, the battery electrode sampler of this application includes a support base, a cross arm rotatably connected to the support base at one end, and a cutting component disposed on the cross arm and whose position is adjustable in the length direction of the cross arm. The entire battery electrode sampler has a simple structure. By adjusting the position of the cutting component on the cross arm, the distance between the cutting component and the support base can be changed to change the radius of the sampled circle, thereby realizing the cutting of circular electrode samples of different sizes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0020] in:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a battery electrode sampler according to an embodiment of this application;

[0022] Figure 2 This is an exploded view of a battery electrode sampler shown in one embodiment of this application.

[0023] Explanation of key component symbols:

[0024] 100. Support base; 110. Circular base plate; 120. Fixed shaft;

[0025] 200. Horizontal arm; 201. Length scale line;

[0026] 300. Cutting assembly; 310. Mounting carrier; 311. Threaded mounting hole; 320. Fastener; 330. Tool holder; 340. Blade;

[0027] 400, Rotating sleeve;

[0028] 500, Washer. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example in the figure. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0034] As described in the background section, in the related technologies, existing sampling instruments are for sampling circles with a fixed area. The size and area of ​​the sampled circle cannot be changed. If it is necessary to change the size of the sampled circle, a sampler of the corresponding size must be replaced, which is costly and time-consuming.

[0035] To address the aforementioned problems, embodiments of this application provide a battery electrode sampler, such as... Figure 1 As shown, the battery electrode sampler includes a support base 100, a cross arm 200, and a cutting assembly 300. The support base 100 provides a stable point of force and a fixed center for the battery electrode sampler. One end of the cross arm 200 is rotatably connected to the support base 100, and the cutting assembly 300 is mounted on the cross arm 200 and its position is adjustable along the length of the cross arm 200. The cross arm 200 can rotate in a plane around the support base 100, thereby cutting circular electrode samples from the electrode using the cutting assembly 300.

[0036] In practical use, the position of the cutting component 300 on the horizontal arm 200 is adjusted according to the desired size of the electrode sample. Essentially, the distance between the axis of rotation between the horizontal arm 200 and the support base 100 and the cutting component 300 is the radius of the circular electrode sample that can be cut. The closer the cutting component 300 is to the support base 100 on the horizontal arm 200, the smaller the circular electrode sample that can be cut. After adjusting and fixing the position of the cutting component 300 on the horizontal arm 200, the support base 100 is placed on the electrode and pressed firmly. Then, the horizontal arm 200 is rotated, and the cutting component 300 cuts a circular electrode sample from the electrode.

[0037] In this embodiment, the battery electrode sampler includes a support base 100, a cross arm 200 rotatably connected to the support base 100 at one end, and a cutting component 300 disposed on the cross arm 200 and whose position is adjustable in the length direction of the cross arm 200. The entire battery electrode sampler has a simple structure. By adjusting the position of the cutting component 300 on the cross arm 200, the distance between the cutting component 300 and the support base 100 can be changed to change the radius of the sampled circle, thereby realizing the cutting of circular electrode samples of different sizes.

[0038] In one embodiment, such as Figure 1As shown, the cutting assembly 300 includes a mounting carrier 310, a fastener 320, a blade holder 330, and a blade 340. The mounting carrier 310 is slidably mounted on the horizontal arm 200 along its length. The fastener 320 is mounted on the mounting carrier 310. By adjusting the fastener 320, the mounting carrier 310 and the horizontal arm 200 can be locked together, thus fixing the mounting carrier 310 on the horizontal arm 200. The blade holder 330 is mounted on the mounting carrier 310, and the blade 340 is fixed on the blade holder 330. Therefore, the cutting assembly 300 has a simple structure and is easy to adjust.

[0039] Among them, the blade 340 can be a right-angle blade, a beveled blade, etc., and there is no limitation here.

[0040] In one embodiment, combined with Figures 1-2 As shown, the mounting carrier 310 is annular and slides on the cross arm 200. The fastener 320 is a fastening screw. The mounting carrier 310 is provided with a threaded mounting hole 311. The fastening screw is set in the threaded mounting hole 311. By tightening the fastening screw, it abuts against the outer side of the cross arm 200, so that the mounting carrier 310 and the cross arm 200 are locked together. When it is necessary to adjust the position of the cutting component 300 on the cross arm 200, the mounting carrier 310 can slide freely after loosening the fastening screw.

[0041] In one specific embodiment, such as Figures 1-2 As shown, the cutting edge of the blade 340 is perpendicular to the length direction of the cross arm 200.

[0042] With this configuration, as the horizontal arm 200 rotates around the support base 100, the blade always cuts the electrode sheet along the direction of travel.

[0043] In one specific embodiment, such as Figure 2 As shown, the cross-section of the horizontal arm 200 is rectangular, and the mounting carrier 310 has a rectangular ring structure. Compared to the circular cross-section of the horizontal arm 200 and the ring-shaped mounting carrier 310, the rectangular ring structure of the mounting carrier 310 cooperates with the rectangular cross-section of the horizontal arm 200 to ensure that the mounting carrier 310 will not rotate relative to the horizontal arm 200 during its movement on the horizontal arm 200.

[0044] In one embodiment, such as Figures 1-2 As shown, a length scale line 201 is provided on the horizontal arm 200 along the length direction. This setting allows for precise distance measurement and facilitates setting the cutting circle radius during the adjustment of the cutting component 300 on the horizontal arm 200.

[0045] In one embodiment, the bottom of the support base 100 is provided with a suction cup or a self-adhesive silicone pad (not shown in the figure). The suction cup or self-adhesive silicone pad can be adsorbed / attached to the electrode during the sampling process, which can fix the support base 100 and prevent the support base 100 from shifting.

[0046] In one embodiment, such as Figures 1-2 As shown, the support base 100 includes a circular base plate 110 and a fixed shaft 120 arranged perpendicular to the center of the circular base plate 110. A rotating sleeve 400 is provided at one end of the cross arm 200. The axial direction of the rotating sleeve 400 is perpendicular to the length direction of the cross arm 200. The rotating sleeve 400 is coaxially sleeved on the fixed shaft 120.

[0047] Specifically, the outer wall of the rotating sleeve 400 is provided with a socket, and one end of the cross arm 200 is inserted into the socket and connected to the rotating sleeve 400 by bolts.

[0048] It is understood that there are multiple ways to achieve the rotatable connection between the cross arm 200 and the support base 100. For example, the support base 100 has a rotatable hole at the top center position, and one end of the cross arm 200 is integrally formed with a rotating shaft. The rotating shaft is perpendicular to the length direction of the cross arm 200 and is inserted into the rotating hole and rotatably connected to the rotating hole.

[0049] In one specific embodiment, such as Figures 1-2 As shown, several washers 500 are provided between the rotating sleeve 400 and the circular base plate 110. The height between the cross arm 200 and the circular base plate 110 can be adjusted by adding or removing washers 500.

[0050] The washer 500 can be a standard height circular block of 1mm-30mm. The height of the cross arm 200 can be adjusted by placing or stacking multiple layers, thereby adjusting the height of the cutting component 300.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A battery electrode sampler, characterized in that, include: Support base; A horizontal arm, one end of which is rotatably connected to the support base; A cutting component is disposed on the cross arm and its position is adjustable along the length of the cross arm; The cross arm can rotate in a plane around the support base, thereby cutting out circular electrode samples from the electrode sheet through the cutting assembly.

2. The battery electrode sampler according to claim 1, characterized in that, The cutting assembly includes a mounting carrier, fasteners, a blade holder, and a blade. The mounting carrier is slidably disposed on the cross arm along its length. The fasteners are disposed on the mounting carrier and can be locked between the mounting carrier and the cross arm by adjusting the fasteners. The blade holder is disposed on the mounting carrier, and the blade is fixed on the blade holder.

3. The battery electrode sampler according to claim 2, characterized in that, The mounting carrier is annular and is slidably sleeved on the cross arm. The fastener is a fastening screw. The mounting carrier has a threaded mounting hole, and the fastening screw is disposed in the threaded mounting hole. By screwing the fastening screw, it abuts against the outer side of the cross arm, thereby locking the mounting carrier and the cross arm together.

4. The battery electrode sampler according to claim 2, characterized in that, The cutting edge of the blade is perpendicular to the length direction of the cross arm.

5. The battery electrode sampler according to claim 2, characterized in that, The cross-section of the cross arm is rectangular, and the mounting carrier has a rectangular ring structure.

6. The battery electrode sampler according to claim 1, characterized in that, The horizontal arm has length scale lines along its length direction.

7. The battery electrode sampler according to claim 1, characterized in that, The bottom of the support base is equipped with a suction cup or a self-adhesive silicone pad.

8. The battery electrode sampler according to any one of claims 1-7, characterized in that, The support base includes a circular base plate and a fixed shaft arranged perpendicular to the center of the circular base plate. One end of the cross arm is provided with a rotating sleeve. The axial direction of the rotating sleeve is perpendicular to the length direction of the cross arm, and the rotating sleeve is coaxially sleeved on the fixed shaft.

9. The battery electrode sampler according to claim 8, characterized in that, Several washers are provided between the rotating sleeve and the circular base plate. The height of the cross arm relative to the circular base plate can be adjusted by adding or removing the washers.

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