Auxiliary push ruler for pole piece rolling

Abstract

The utility model discloses a pole piece rolling auxiliary push ruler which comprises a grip, and the grip comprises a connecting part and a holding part arranged on one side of the connecting part. The number of the pressing plates is two, the two pressing plates are arranged at the two ends of the connecting part, the two pressing plates extend back to the holding part, and an observation area is formed between the two pressing plates. When the pole piece rolling auxiliary push ruler provided by the utility model works, the holding part is held by a hand to press the left side and the right side of the pole piece by the two pressing plates, so that the pole piece can enter a roller press with the minimum contact area, and a curled edge can be flattened. And the blank observation area is formed between the two pressing plates, so that the central area of the pole piece can be exposed, an operator can observe the state of the pole piece entering the roller press, and the surface of the pole piece cannot be abraded.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically, to an auxiliary pusher for electrode rolling. Background Technology

[0002] In recent years, the new energy industry has developed rapidly, and the demand for cathode materials, one of the main materials for lithium batteries, has increased. This has led to a continuous increase in the testing volume and requirements for lithium battery cathode materials.

[0003] In lithium-ion battery manufacturing, the electrode rolling process plays a crucial role in battery energy storage and cycle life. Based on the fundamental principles of lithium-ion battery manufacturing, lithium-ion battery electrodes are made by coating active materials onto aluminum or copper foil as a substrate, followed by rolling, cutting, and other processes. The rolling step determines the electrode's conductivity properties, and its main purpose is to make the foil strip and surface active material structure more stable and compact. It also increases the manufacturing precision of the electrode, reduces the electrode spacing, and increases current density. Therefore, the surface requirements for the electrodes are relatively high. Scratches, bumps, and foreign matter are unacceptable; otherwise, the impact on data is uncontrollable.

[0004] The electrodes in the laboratory are relatively small (approximately 12*7 cm). When feeding them into the roller press, the electrodes are generally pushed in by hand or by folded paper.

[0005] One method involves gently pushing the electrode sheet into the roller press by holding the tail end with your hand. The electrode sheet is approximately twelve centimeters long. Maintain a safe distance while pushing it into the roller press. This method is the most convenient, allowing for pushing the electrode sheet with a very small contact area and minimizing the amount of foreign matter introduced. The disadvantage of this method is that it carries a higher safety risk and can only be used during the first roller press. During the second roller press, the electrode sheet will bend and coil due to the applied force, preventing it from entering the roller press as a flat surface.

[0006] The second method involves folding A4 paper into a sheet roughly the same size as the electrode. During use, simply cover the electrode with the paper and press it into the roller press. For the second roller press, simply flatten the curled edges of the electrode and press it down firmly with the paper. After a quick adjustment, it can be pushed into the roller press. The disadvantages of this method are: 1. The paper is opaque, making it impossible to check the surface condition of the electrode after covering it. Whether it is bent or has lost material cannot be determined until after roller pressing, but even then, it cannot be remedied. Furthermore, pushing the electrode with A4 paper requires friction to prevent slippage, which inevitably leads to the loss of surface-active material. Even worse, scratches can occur during friction, and dust and paper scraps can create bumps, rendering the produced electrode unusable and wasteful of resources.

[0007] Therefore, how to provide a safe and reliable electrode roller pressing auxiliary pusher has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0008] The purpose of this invention is to provide a safe and reliable auxiliary pusher for electrode rolling.

[0009] This utility model provides an auxiliary pusher for electrode rolling, including:

[0010] The handle includes a connecting part and a gripping part located on one side of the connecting part;

[0011] The pressure plate includes two plates located at both ends of the connecting part, the two pressure plates extending away from the holding part, and an observation area is formed between the two pressure plates.

[0012] Optionally, at least one of the pressure plates is a movable pressure plate, which can be adjusted in installation position along the length of the connection.

[0013] Optionally, the connecting part includes an upper connecting plate and a lower connecting plate disposed opposite to each other, and a mounting groove is formed between the upper connecting plate and the lower connecting plate;

[0014] The upper connecting plate and / or the lower connecting plate are provided with mounting holes that communicate with the mounting groove, and the connecting part also includes a fastener that can be screwed into or out of the mounting hole;

[0015] The movable pressure plate has a mounting end for insertion into the mounting groove. When the mounting end is located in the mounting groove and corresponds to the mounting hole, the fastener can be screwed into the mounting hole and the movable pressure plate is fastened to the connecting part.

[0016] Optionally, the mounting end is provided with a recessed portion whose thickness is adapted to the mounting groove. When the recessed portion is installed in the mounting groove, the surface of the pressure plate is flush with the connecting portion.

[0017] Optionally, the mounting hole is an elongated hole, and the movable pressure plate can be infinitely adjusted along the mounting hole to change the mounting position.

[0018] Optionally, the mounting holes include a plurality of holes distributed along the length of the connection portion, and the mounting holes are formed through the upper connecting plate and the lower connecting plate.

[0019] Optionally, the mounting end is provided with a through hole. When the mounting end is placed into the mounting groove, the fastener is sequentially threaded to the mounting hole and the through hole.

[0020] Optionally, the pressure plate includes a movable pressure plate and a fixed pressure plate. The fixed pressure plate is integrally formed with one end of the connecting part, and the movable pressure plate is adjustablely mounted on the connecting part between the fixed pressure plate and the other end of the connecting part.

[0021] Optionally, the pressure plate is made of a flexible or elastic material.

[0022] Optionally, the material used to make the pressure plate is selected from PVC and / or acrylic.

[0023] Based on the technical content disclosed in this utility model, the following beneficial effects are achieved:

[0024] The electrode rolling auxiliary pusher provided by this utility model has a handle including a connecting part and a gripping part located on one side of the connecting part; two pressure plates extend away from the gripping part, and an observation area is formed between the two pressure plates. During operation, the operator holds the gripping part to press the two pressure plates against the left and right sides of the electrode, allowing it to enter the rolling mill with minimal contact area, and also smoothing out the rolled edges. Furthermore, the blank observation area formed between the two pressure plates exposes the central area of ​​the electrode, ensuring that the operator can observe the state of the electrode at the moment it enters the rolling mill, without damaging the electrode surface.

[0025] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0027] Figure 1 This is a three-dimensional structural diagram of the electrode roller pressing auxiliary pusher of Embodiment 1 of this utility model.

[0028] Figure 2 This is a first-view structural diagram of the grip of Embodiment 1 of this utility model.

[0029] Figure 3 This is a second-view structural diagram of the grip of Embodiment 1 of this utility model.

[0030] Figure 4 This is a first-view structural diagram of the pressure plate in Embodiment 1 of this utility model.

[0031] Figure 5 This is a second-view structural diagram of the pressure plate in Embodiment 1 of this utility model.

[0032] Figure 6 This is a three-dimensional structural diagram of the electrode roll pressing auxiliary pusher of Embodiment 2 of this utility model.

[0033] Explanation of reference numerals in the attached drawings: 1. Handle; 11. Grip part; 12. Connecting part; 121. Upper connecting plate; 122. Lower connecting plate; 123. Mounting groove; 124. First mounting hole; 2. Pressure plate; 21. Mounting end; 211. Third mounting hole; 22. First pressure plate; 23. Second pressure plate; 3. Observation area. Detailed Implementation

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0037] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0039] Example 1:

[0040] See Figure 1 This embodiment discloses an auxiliary pusher for electrode rolling, including a handle 1 and a pressure plate 2. The handle 1 includes a gripping part 11 and a connecting part 12 disposed on one side of the gripping part 11; two pressure plates 2 are provided, which are respectively connected to both sides of the width of the connecting part 12 and extend away from the gripping part 11, forming an observation area 3 between the two pressure plates 2. The handle 1 is made of wood, and the pressure plate 2 is made of elastic materials such as soft PVC and soft acrylic.

[0041] Combination Figure 2 and Figure 3 The connecting portion 12 includes an upper connecting plate 121 and a lower connecting plate 122 that are opposite to and spaced apart, with a mounting groove 123 formed between the upper connecting plate 121 and the lower connecting plate 122. The connecting portion 12 has mounting holes communicating with the mounting groove 123. Specifically, the mounting holes include a first mounting hole 124 on the upper connecting plate 121 and a second mounting hole on the lower connecting plate 122, with the first mounting hole 124 and the second mounting hole being opposite to each other. The connecting portion 12 also includes a fastener that can be screwed into or out of the first mounting hole 124 and the second mounting hole.

[0042] Combination Figure 4 and Figure 5The two pressure plates 2 are strip-shaped pressure plates, and the thickness of the pressure plates 2 is equal to the thickness of the connecting part 12. One end of the pressure plate 2 is the mounting end, and the front and back sides of the mounting end are recessed inward to a preset depth to form a recess 21. A third mounting hole 211 is provided on the recess 21. The recess 21 is sandwiched between the upper connecting plate 121 and the lower connecting plate 122. Bolts or screws, which are fasteners, can be screwed into the first mounting hole 124, the third mounting hole 211 and the second mounting hole arranged in sequence to fix the pressure plate 2 on the connecting part 12. When the recess 21 is installed in the mounting groove 123, the surface of the pressure plate 2 is flush with the connecting part 12.

[0043] Both pressure plates 2 are movable, and multiple first mounting holes 124 and multiple second mounting holes are provided, with each first mounting hole 124 and multiple second mounting holes corresponding one-to-one. The two pressure plates 2 are arranged parallel to each other, and by installing the two pressure plates 2 at the positions of the two first mounting holes 124 with different spacing, the distance between the two pressure plates 2 can be adaptively adjusted. In some embodiments, after the two pressure plates 2 are fixed to the connecting part 12, the pressure plates 2 can also be rotated around the center of the first mounting hole 124 to change the relative position between the two pressure plates 2 and the distance between the free ends of the two pressure plates 2.

[0044] Optionally, in this embodiment, the first mounting hole 124 and the second mounting hole have another variation: the first mounting hole 124 and the second mounting hole are elongated holes. This allows the two pressure plates 2 to be fixed at any position in the elongated holes by bolts or screws, thereby achieving stepless adjustment of the distance between the two pressure plates 2.

[0045] Method for manufacturing an auxiliary pusher for electrode rolling:

[0046] First, cut two rectangles, each 100mm long and 10mm wide, from a 5mm thick soft PVC acrylic sheet. On both sides, shave off a 1mm thick groove from 10mm from the tail towards the tail. Drill an M4 screw hole in the center of each groove to create pressure plate 2. Next, make a T-shaped wooden handle as grip 1. Carve a hollow 85mm long, 10mm high, and 3mm thick groove in the center of the handle 1's horizontal axis. Drill several M4 screw holes at appropriate locations. Insert the drilled end of pressure plate 2 into the hollow groove and connect it to grip 1 using screws. The distance between the two pressure plates 2 can then be adjusted by changing the opening angle or position of the PVC sheet.

[0047] How to use the electrode roller pressing auxiliary pusher:

[0048] When using the device, first roughly estimate the width of the electrode sheet. Then, connect the PVC sheet (pressure plate 2) of the auxiliary device to the handle, ensuring the distance between the two pressure plates 2 is sufficient to press down on both sides of the electrode sheet. Next, use the two pressure plates 2 of the electrode sheet roller pressing auxiliary pusher to press down on the left and right sides of the electrode sheet, ensuring the pressed length does not exceed two-thirds of the electrode sheet. Lay the electrode sheet flat on the platform of the roller press and gently push it between the two rollers of the rotating roller press. After the rollers automatically wind up the electrode sheet, pull back the electrode sheet roller pressing auxiliary pusher. The electrode sheet roller pressing auxiliary pusher must not be pushed into the roller press. The maximum thickness of the PVC sheet is 1 cm; if it is too thick, it will be difficult to bend and cannot be fed in. Other smooth and cuttable materials can also replace the PVC sheet, but they must be able to connect to the handle.

[0049] Example 2:

[0050] Combination Figures 4 to 6 This embodiment discloses an auxiliary pusher for electrode rolling, including a handle 1 and a pressure plate 2. The handle 1 includes a gripping part 11 and a connecting part 12; the connecting part 12 includes an upper connecting plate 121 and a lower connecting plate 122 that are opposite to each other and spaced apart, and a mounting groove 123 is formed between the upper connecting plate 121 and the lower connecting plate 122; a first mounting hole 124 is provided on the upper connecting plate 121, and a second mounting hole is provided on the lower connecting plate 122, and the first mounting hole 124 and the second mounting hole are opposite to each other.

[0051] The pressure plate 2 includes a first pressure plate 22 and a second pressure plate 23. The first pressure plate 22 and the second pressure plate 23 are respectively connected to both sides of the width of the connecting part 12 and face away from the holding part 11. The first pressure plate 22 and the second pressure plate 23 are both strip-shaped pressure plates. An observation area 3 is formed between the first pressure plate 22 and the second pressure plate 23. The thickness of the first pressure plate 22 and the second pressure plate 23 is equal to the thickness of the connecting part 12. The first pressure plate 22 is integrally formed and fixedly connected to the connecting part 12. At the mounting end of the second pressure plate 23, its front and back sides are recessed inward to a preset depth to form a recess 21. A third mounting hole 211 is provided on the recess 21. The recess 21 is sandwiched between the upper connecting plate 121 and the lower connecting plate 122. Bolts or screws, as fasteners, pass through the first mounting hole 124, the third mounting hole 211 and the second mounting hole in sequence to fix the second pressure plate 23 to the connecting part 12.

[0052] In this embodiment, multiple first mounting holes 124 and multiple second mounting holes are provided, with each first mounting hole 124 and multiple second mounting holes corresponding to one another, to adjust the relative position between the second pressure plate 23 and the first pressure plate 22. Of course, in some embodiments, the first mounting holes 124 and the second mounting holes are elongated holes, which also serve to adjust the relative position between the second pressure plate 23 and the first pressure plate 22.

[0053] In summary, the electrode roller pressing auxiliary pusher provided by this utility model has the following beneficial effects:

[0054] 1. There is no need to push the electrode sheets into the roller press by hand, reducing safety hazards.

[0055] 2. There is no need to wrap the electrode with paper, reducing wear on the electrode material. It also avoids introducing foreign matter such as paper scraps and dust.

[0056] 3. When the electrode sheet is rolled up multiple times, three sides can be flattened. The connecting part and the two pressure plates each press one side, preventing the electrode sheet from being folded or wrinkled during rolling and thus becoming unusable.

[0057] 4. It can be reused, which not only saves resources but also saves a lot of time;

[0058] 5. The width can be adjusted according to the size of the electrode, making it more widely applicable.

[0059] 6. It will not completely cover the electrode; the observation area in the center allows for constant monitoring of the electrode's condition and makes necessary adjustments.

[0060] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A type of electrode roll forming auxiliary pusher, characterized in that, include: A grip, the grip including a connecting part and a holding part provided on one side of the connecting part; The pressure plate includes two plates located at both ends of the connecting portion, the two pressure plates extending away from the gripping portion, and an observation area formed between the two pressure plates.

2. The electrode roll forming auxiliary pusher according to claim 1, characterized in that: At least one of the pressure plates is a movable pressure plate, and the movable pressure plate can be adjusted in installation position along the length direction of the connecting part.

3. The electrode roll forming auxiliary pusher according to claim 2, characterized in that: The connecting part includes an upper connecting plate and a lower connecting plate disposed opposite to each other, and a mounting groove is formed between the upper connecting plate and the lower connecting plate; The upper connecting plate and / or the lower connecting plate are provided with mounting holes that communicate with the mounting groove, and the connecting part further includes a fixing member that can be screwed into or screwed out of the mounting hole; The movable pressure plate has a mounting end for being inserted into the mounting groove. When the mounting end is located in the mounting groove and corresponds to the mounting hole, the fastener can be screwed into the mounting hole and the movable pressure plate is fastened to the connecting part.

4. The electrode roll forming auxiliary pusher according to claim 3, characterized in that: The mounting end is provided with a recessed portion whose thickness is adapted to the mounting groove. When the recessed portion is installed in the mounting groove, the surface of the pressure plate is flush with the connecting portion.

5. The electrode roll forming auxiliary pusher according to any one of claims 3 or 4, characterized in that: The mounting hole is an elongated hole, and the movable pressure plate can be infinitely adjusted in position along the mounting hole.

6. The electrode roll forming auxiliary pusher according to claim 3 or 4, characterized in that: The mounting holes include a plurality of holes distributed along the length of the connecting portion, and the mounting holes are formed through the upper connecting plate and the lower connecting plate.

7. The electrode roll forming auxiliary pusher according to claim 3 or 4, characterized in that: The mounting end has a through hole. When the mounting end is placed into the mounting groove, the fixing member is sequentially threaded to the mounting hole and the through hole.

8. The electrode roll forming auxiliary pusher according to claim 3 or 4, characterized in that: The pressure plate includes a movable pressure plate and a fixed pressure plate. The fixed pressure plate is integrally formed with one end of the connecting part, and the movable pressure plate is adjustablely mounted on the connecting part between the fixed pressure plate and the other end of the connecting part.

9. The electrode roll forming auxiliary pusher according to any one of claims 1 to 4, characterized in that: The pressure plate is made of a flexible or elastic material.

10. The electrode roll forming auxiliary pusher according to claim 9, characterized in that: The pressure plate is made of PVC and / or acrylic.

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