Positioning sleeve and battery production equipment

Abstract

The utility model provides a positioning sleeve and battery production equipment, the positioning sleeve is used for being placed on a transmission plate, the end part of the positioning sleeve is sequentially provided with a first placing cavity and a second placing cavity from top to bottom, and a slope frustum cavity is arranged between the first placing cavity and the second placing cavity; the first placement cavity is communicated with the second placement cavity through the slope frustum cavity, so that the tab of the battery cell is arranged in the second placement cavity in a sliding manner along the slope frustum cavity from the first placement cavity; the slope frustum cavity is designed to be communicated with the first placement cavity and the second placement cavity, so that the tabs at the bottom of the battery cell can smoothly slide to the second placement cavity from the slope frustum cavity after the battery cell enters the first placement cavity, and the situation that the tabs are folded, deformed or broken in the transfer process is avoided; and the battery cell is placed in the positioning sleeve, so that the battery cell is effectively protected from being extruded in the transfer process.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of battery production, and in particular to a positioning sleeve and a battery production device. BACKGROUND

[0002] At present, with the continuous development of the new energy industry, the manufacturing of battery cells has also attracted attention. In the production process of lithium-ion batteries, the processing of the battery cell tabs is a crucial link.

[0003] In the existing production process of lithium-ion batteries, the quality of the winding core (i.e., the main part of the battery cell) directly affects the performance and life of the entire battery. The winding core contains key components such as positive electrodes, negative electrodes, and separators, and the tab is an important part of the connection between the battery and the external circuit. The performance and stability of the tab directly affect the overall performance of the battery. In the production process of winding-type lithium-ion batteries, the positioning and winding technology of the winding core is crucial, not only requiring high precision and stability, but also requiring to avoid the folding or twisting of the tab, which may cause the battery performance to decrease and even affect the safety of the battery.

[0004] In the prior art, the produced battery cells are individually placed into a placement cylinder, and then a plurality of battery cells are assembled together; however, during the transportation of the battery cells, the placement of the battery cells into the placement cylinder causes the tab to fold, which causes the tab to deform or break, thereby affecting the current conduction and cycle life of the battery. In addition, the folded tab is more likely to be damaged during the battery packaging process, increasing the risk of internal short circuit of the battery. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a positioning sleeve and a battery production device that prevent the folding or deformation of the battery tab.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] A positioning sleeve; the positioning sleeve is used to be placed on a conveying plate, and a first placement cavity and a second placement cavity are sequentially formed from top to bottom at the end of the positioning sleeve, a slope frustum cavity is arranged between the first placement cavity and the second placement cavity, the first placement cavity and the second placement cavity are connected in communication through the slope frustum cavity, so that the tab of the battery cell is slidably arranged in the second placement cavity along the slope frustum cavity from the first placement cavity.

[0008] In one embodiment, the inner wall of the slope frustum cavity includes a limiting abutting surface that surrounds and connects to the cavity wall of the first placement cavity.

[0009] In one of the embodiments, the inner wall of the slope frustum cavity further comprises a slope excess part, which is arranged around the first placing cavity and the second placing cavity, and the slope excess part is connected to the limiting abutting surface.

[0010] In one of the embodiments, the positioning sleeve is an integral structure.

[0011] In one of the embodiments, the end of the positioning sleeve is provided with a protruding part, and the center of the protruding part is provided with a lower discharge port, which is connected to the first placing cavity.

[0012] In one of the embodiments, the positioning sleeve is a cylindrical sleeve, and the cylindrical sleeve is made of silica gel.

[0013] In one of the embodiments, the transmission plate further comprises conveying blocks, and the conveying blocks are arranged on the end surface of the transmission plate in a sliding manner.

[0014] A battery production device comprises a transmission plate and the positioning sleeve according to any one of the embodiments, and the positioning sleeve is arranged on the transmission plate, and the transmission plate is used for transporting the positioning sleeve.

[0015] Compared with the prior art, the present disclosure has at least the following advantages:

[0016] The positioning sleeve is arranged in the transmission plate, so that the battery cell can be placed in the positioning sleeve after the production of the battery cell. The end of the positioning table is sequentially provided with a first placing cavity and a second placing cavity from top to bottom, and a slope frustum cavity is arranged between the first placing cavity and the second placing cavity. When the battery cell is placed in the positioning sleeve, the tab will slide from the first placing cavity to the second placing cavity along the slope frustum cavity. Because the tab slides from the first placing cavity to the second placing cavity along the slope frustum cavity, the tab is effectively prevented from being folded during the placing process, thereby ensuring the stability of the tab during the placing process in the positioning sleeve. The first placing cavity and the second placing cavity are connected by the slope frustum cavity, so that the tab at the bottom of the battery cell will smoothly slide from the slope frustum cavity to the second placing cavity after the battery cell enters the first placing cavity. Thus, the tab folding deformation or breakage of the tab during the transfer process is avoided, and the battery cell is effectively protected from being squeezed during the transfer process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 Structure schematic diagram of battery production equipment according to an embodiment of the present disclosure;

[0019] Figure 2 Sectional view of positioning sleeve according to an embodiment of the present disclosure.

[0020] Reference signs: 10, battery production equipment; 100, battery cell; 110, tab; 200, transfer plate; 300, positioning sleeve; 310, first placement cavity; 320, second placement cavity; 330, slope cone cavity; 3310, limiting abutting surface; 3320, slope transition part; 340, protruding part; 3410, lower outlet; 400, conveying block. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0023] 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 the present disclosure belongs. The terminology used in the description of the present disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below in combination with specific embodiments:

[0025] As Figures 1 to 2As shown, the positioning sleeve 300 of one embodiment; the positioning sleeve 300 is used to place in the transmission plate 200, the end of the positioning sleeve 300 is sequentially provided with a first placement cavity 310 and a second placement cavity 320 from top to bottom, the first placement cavity 310 is provided with a slope frustum cavity 330 between the first placement cavity 310 and the second placement cavity 320, the first placement cavity 310 and the second placement cavity 320 are communicated through the slope frustum cavity 330, so that the tab 110 of the battery cell 100 is arranged in the second placement cavity 320 from the first placement cavity 310 along the slope frustum cavity 330.

[0026] It can be understood that the positioning sleeve 300 is placed in the transmission plate 200, so that the battery cell 100 can be placed into the positioning sleeve 300 after the production of the battery cell 100; the end of the positioning platform is sequentially provided with a first placement cavity 310 and a second placement cavity 320 from top to bottom, and the first placement cavity 310 and the second placement cavity 320 are provided with a slope frustum cavity 330, when the battery cell 100 is placed into the positioning sleeve 300, the tab 110 will slide into the second placement cavity 320 from the first placement cavity 310 along the slope frustum cavity 330, because the tab 110 slides into the second placement cavity 320 from the first placement cavity 310 along the slope frustum cavity 330, thereby effectively avoiding the folding of the tab 110 during placement, thereby ensuring the stability of the tab 110 during placement into the positioning sleeve 300; by designing the slope frustum cavity 330 to communicate the first placement cavity 310 and the second placement cavity 320, the tab 110 at the bottom of the battery cell 100 will smoothly slide from the slope frustum cavity 330 to the second placement cavity 320 after the battery cell 100 enters the first placement cavity 310, thereby avoiding the folding deformation or fracture of the tab 110 during the transfer process, and placing the battery cell 100 into the positioning sleeve 300 effectively protects the battery cell 100 from being squeezed during the transfer process.

[0027] In combination with Figure 1 With Figure 2As shown, in one of the embodiments, the inner wall of the slope frustum cavity 330 comprises a limiting abutting surface 3310, which surrounds the cavity wall of the first placement cavity 310 and is connected with the cavity wall of the first placement cavity 310. It can be understood that when the battery cell 100 is placed in the first placement cavity 310 of the positioning sleeve 300, the tab 110 will naturally extend and contact the limiting abutting surface 3310. At the same time, because the limiting abutting surface 3310 is part of the slope frustum cavity 330, the tab 110 slides along the limiting abutting surface 3310 to the second placement cavity 320, and the bottom of the battery cell 100 abuts against the limiting abutting surface 3310, so that the tab 110 at the bottom of the battery cell 100 slides to the second placement cavity 320, avoiding the situation that the tab 110 is squeezed when the battery cell 100 is placed in the positioning sleeve 300 and excessively enters the inner cavity of the positioning sleeve 300.

[0028] In combination Figure 1 With Figure 2 As shown, further, the inner wall of the slope frustum cavity 330 further comprises a slope transition part 3320, which is arranged between the first placement cavity 310 and the second placement cavity 320, and the slope transition part 3320 is connected to the limiting abutting surface 3310. It can be understood that by arranging the slope transition part 3320 between the first placement cavity 310 and the second placement cavity 320, and connecting the slope transition part 3320 to the limiting abutting surface 3310, when the tab 110 slides from the cavity wall of the first placement cavity 310 to the cavity wall of the second placement cavity 320, it will pass through the slope transition part 3320 to reach the cavity wall of the second placement cavity 320. The slope transition part 3320 smoothly connects the space between the first placement cavity 310 and the second placement cavity 320, forming a natural transition area, so that the tab 110 can seamlessly slide from the first placement cavity 310 to the second placement cavity 320 along the path of the slope transition part 3320 under the action of gravity; at the same time, because the slope transition part 3320 provides a more uniform support surface, it ensures that the tab 110 remains stable during the sliding process.

[0029] In combination Figure 1 With Figure 2 As shown, in one of the embodiments, the positioning sleeve 300 is an integrally formed structure. It can be understood that the positioning sleeve 300 being an integrally formed structure means that the positioning sleeve 300 does not have additional connecting components, which enhances the structural strength and overall stability of the positioning sleeve 300. In addition, the integrally formed structure simplifies the manufacturing process of the positioning sleeve 300, as there is no need for component assembly and welding, which reduces production costs and improves production efficiency.

[0030] In combination Figure 1 With Figure 2As shown, in one embodiment, the end of the positioning sleeve 300 is provided with a protruding portion 340, and the center of the protruding portion 340 is provided with a lower opening 3410, which is in communication with the first placement cavity 310. It can be understood that by providing the protruding portion 340 at the end of the positioning sleeve 300, and the lower opening 3410 in the center of the protruding portion 340, the battery cell 100 can enter the first placement cavity 310 from the lower opening 3410 of the protruding portion 340, so that the tab 110 can slide into the second placement cavity 320 along the slope frustum cavity 330.

[0031] In combination Figure 1 With Figure 2 As shown, in one embodiment, the positioning sleeve 300 is a cylindrical sleeve made of silica gel. It can be understood that the positioning sleeve 300 is provided as a cylindrical sleeve, and the cylindrical sleeve-shaped positioning sleeve 300 matches the shape of the battery cell 100, providing good adaptability and stability. The battery cell 100 can be smoothly placed in the cylindrical sleeve, and the tab 110 can be smoothly slid along the slope frustum cavity 330 inside the cylindrical sleeve. In addition, the cylindrical sleeve made of silica gel has excellent high-temperature and low-temperature resistance; during the production of the battery, the battery cell 100 needs to be treated in multiple high-temperature and low-temperature links. The positioning sleeve 300 made of silica gel can maintain stability and reliability under extreme temperature adjustment, ensuring that the tab 110 will not be damaged due to temperature changes during transmission.

[0032] In combination Figure 1 With Figure 2 Figure 1 Figure 2 As shown, further, the transmission plate 200 further comprises a conveying block 400, and a plurality of conveying blocks 400 are slidingly arranged on the end face of the transmission plate 200. It can be understood that a plurality of conveying blocks 400 are slidingly arranged on the end face of the transmission plate 200, and when the positioning sleeve 300 is placed on the conveying block 400, because the positioning sleeve 300 is placed on the conveying block 400, the positioning sleeve 300 can be slid to the next process on the end face of the transmission plate 200 through the conveying block 400.

[0033] The application also provides a battery production equipment 10, comprising a transmission plate 200 and the positioning sleeve 300 of any of the above embodiments, the positioning sleeve 300 is placed in the transmission plate 200, and the transmission plate 200 is used for transporting the positioning sleeve 300. It can be understood that by designing the slope frustum cavity 330 to connect the first placement cavity 310 and the second placement cavity 320, the tab 110 at the bottom of the battery cell 100 will slide from the slope frustum cavity 330 to the second placement cavity 320 after the battery cell 100 enters the first placement cavity 310, thereby avoiding the tab 110 folding deformation or breaking during the transfer process, and placing the positioning sleeve 300 in the transmission plate 200, so that the positioning sleeve 300 is transported to the next process according to the sliding of the transmission plate 200.

[0034] Compared with the prior art, the present disclosure has at least the following advantages:

[0035] Placing the positioning sleeve 300 in the transmission plate 200 makes it possible to place the battery cell 100 into the positioning sleeve 300 after the production of the battery cell 100; the end of the positioning table is sequentially provided with the first placement cavity 310 and the second placement cavity 320 from top to bottom, and the slope frustum cavity 330 is arranged between the first placement cavity 310 and the second placement cavity 320; when the battery cell 100 is placed into the positioning sleeve 300, the tab 110 will slide from the first placement cavity 310 along the slope frustum cavity 330 and into the second placement cavity 320; because the tab 110 slides along the slope frustum cavity 330 from the first placement cavity 310 to the second placement cavity 320, the tab 110 is effectively prevented from folding during placement, thereby ensuring the stability of the tab 110 during placement into the positioning sleeve 300; by designing the slope frustum cavity 330 to connect the first placement cavity 310 and the second placement cavity 320, the tab 110 at the bottom of the battery cell 100 will smoothly slide from the slope frustum cavity 330 to the second placement cavity 320 after the battery cell 100 enters the first placement cavity 310, thereby avoiding the tab 110 folding deformation or breaking during the transfer process, and placing the battery cell 100 into the positioning sleeve 300 effectively protects the battery cell 100 from being squeezed during the transfer process.

[0036] The above-described embodiments only express several embodiments of the present disclosure, which are described in detail and specifically, but should not be understood as limiting the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A positioning sleeve (300); Its features are, The positioning sleeve (300) is used to place on the transmission plate (200). The end of the positioning sleeve (300) is provided with a first placement cavity (310) and a second placement cavity (320) from top to bottom. A sloping frustum cavity (330) is provided between the first placement cavity (310) and the second placement cavity (320). The first placement cavity (310) and the second placement cavity (320) are connected through the sloping frustum cavity (330) so that the electrode (110) of the battery cell (100) can slide from the first placement cavity (310) along the sloping frustum cavity (330) and be placed in the second placement cavity (320).

2. The positioning sleeve according to claim 1, characterized in that, The inner wall of the ramp cone cavity (330) includes a limiting abutment surface (3310), which surrounds the cavity wall of the first placement cavity (310) and is connected to the cavity wall of the first placement cavity (310).

3. The positioning sleeve according to claim 2, characterized in that, The inner wall of the ramp cone cavity (330) also includes a ramp transition portion (3320), which is disposed around the first placement cavity (310) and the second placement cavity, and the ramp transition portion (3320) is connected to the limiting abutment surface (3310).

4. The positioning sleeve according to claim 3, characterized in that, The positioning sleeve (300) is a one-piece molded structure.

5. The positioning sleeve according to claim 1, characterized in that, The end of the positioning sleeve (300) is provided with a protrusion (340), and the center of the protrusion (340) is provided with a lowering opening (3410), which is connected to the first placement cavity (310).

6. The positioning sleeve according to claim 1, characterized in that, The positioning sleeve (300) is a cylindrical sleeve made of silicone.

7. The positioning sleeve according to claim 1, characterized in that, The transmission plate also includes conveying blocks (400), and a plurality of the conveying blocks (400) are slidably disposed at intervals on the end face of the transmission plate (200).

8. A battery manufacturing equipment, characterized in that, It includes a transmission plate (200) and a positioning sleeve (300) according to any one of claims 1 to 7, the positioning sleeve (300) being placed on the transmission plate (200) and the transmission plate (200) being used to transport the positioning sleeve (300).

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