Lithium cell shaping jig

Abstract

The utility model relates to the technical field of lithium cell shaping, in particular to a lithium cell shaping jig. A plurality of positioning plates are arranged on a base, a placement position for accommodating a lithium battery cell is formed between every two adjacent positioning plates, limiting blocks are arranged at the two ends of each positioning plate, the bottoms of the positioning plates are arranged on the base in a lifting manner through elastic assemblies, and then the positioning plates are jacked up through the elastic assemblies, so that the two ends of the positioning plates abut against the limiting blocks; when the cylindrical lithium cell is placed at the placing position between the two positioning plates, tabs at the two ends of the lithium cell are placed on the positioning plates, so that the lithium cell is suspended on the base, and when the lithium cell is pressed down by the hot pressing plate, the lithium cell presses down the positioning plates to compress the elastic assembly, so that the lithium cell is placed on the base. And then the lithium battery core descends to the base, so that the hot-pressing plate completes the hot-pressing shaping process on the lithium battery core, the lithium battery core is prevented from rolling during hot-pressing, the consistency of the position of the tab after hot-pressing forming is ensured, and the tab position requirement of a customer is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery cell shaping, in particular to a lithium battery cell shaping jig. BACKGROUND

[0002] In the existing production, after the lithium battery cell is wound and formed, it needs to be flattened and shaped (shaped into an oval shape) by a hot press. The existing hot pressing method is to place the lithium battery cell on the bottom plate of the hot press, and then press the lithium battery cell with the hot pressing plate to shape it. Since the battery cell is a cylinder before shaping, the hot pressing plate is prone to cause the battery cell to roll due to machine vibration when it is pressed down, resulting in inconsistent position of the tab of the battery cell during shaping, which cannot meet the customer's requirements for the position of the tab and wastes labor costs due to rework. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems, the present application provides a lithium battery cell shaping jig, which comprises a base, a plurality of positioning plates arranged on the base, a placement position for accommodating a lithium battery cell being formed between adjacent two positioning plates, a limiting block being arranged at both ends of the positioning plate, and the positioning plate is liftably arranged on the base through an elastic assembly.

[0004] Preferably, the elastic assembly comprises a positioning column fixed on the base, an elastic member is sleeved on the positioning column, and a positioning hole is formed in the bottom of the positioning plate for embedding the positioning column.

[0005] Preferably, a through slot is formed in the side surface of the limiting block, and an abutting edge is formed at both ends of the positioning plate, and the abutting edge is liftably arranged in the through slot.

[0006] Preferably, a plurality of positioning grooves for accommodating the tab are further formed in the top surface of the positioning plate.

[0007] Preferably, the limiting block is detachably arranged on the base through a locking member.

[0008] Preferably, it further comprises a hot press, a fixing table for fixing the base is arranged at the bottom of the hot press, and a hot pressing plate is arranged above the base of the hot press.

[0009] From the above, the application can obtain the following beneficial effects: by arranging a plurality of positioning plates on the base, a placing position for accommodating the lithium battery cell is formed between two adjacent positioning plates, a limiting block is arranged at both ends of the positioning plate, the bottom of the positioning plate is arranged on the base through the elastic assembly, and then the positioning plate is lifted up through the elastic assembly, so that the two ends of the positioning plate abut against the limiting block, the positioning of the positioning plate is realized, and when the cylindrical lithium battery cell is placed in the placing position between the two positioning plates, the tab at both ends of the lithium battery cell is placed on the positioning plate, and then the lithium battery cell is suspended on the base. When the hot pressing plate presses down the lithium battery cell, the lithium battery cell compresses the elastic assembly by pressing down the positioning plate, and then the lithium battery cell is lowered to the base, so that the hot pressing plate completes the hot pressing shaping process on the lithium battery cell. Before hot pressing, the lithium battery cell is suspended and supported by the positioning plate, so that rolling of the lithium battery cell during hot pressing is avoided, the consistency of the tab position after hot pressing is ensured, and the customer's tab position requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only part of the embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0011] Figure 1 is a front view of the lithium battery cell shaping jig of the embodiment of the present application;

[0012] Figure 2 is an enlarged view of part A of the embodiment of the present application; Figure 1

[0013] Figure 3 is a top view of the lithium battery cell shaping jig of the embodiment of the present application;

[0014] Figure 4 is a B-B sectional view of the embodiment of the present application. Figure 3 DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0016] EMBODIMENT

[0017] In order to solve the above technical problems, the present embodiment provides a lithium battery cell shaping jig, as​​Figures 1-3 As shown, the device comprises a base 10, a plurality of positioning plates 20 are arranged on the base 10, a placing position for accommodating the lithium battery cell is formed between two adjacent positioning plates 20, limiting blocks 30 are arranged at both ends of the positioning plate 20, the bottom of the positioning plate 20 is arranged on the base 10 through the elastic assembly 40, and the positioning plate 20 is lifted up through the elastic assembly 40, so that the two ends of the positioning plate 20 abut against the limiting blocks 30, the positioning of the positioning plate 20 is realized, and when the cylindrical lithium battery cell is placed in the placing position between the two positioning plates 20, the tabs at both ends of the lithium battery cell are placed on the positioning plate 20, so that the lithium battery cell is suspended on the base 10, when the hot pressing plate presses down the lithium battery cell, the lithium battery cell is pressed down through the positioning plate 20, so that the elastic assembly 40 is compressed, and then the lithium battery cell is lowered to the base 10, so that the hot pressing plate completes the hot pressing and shaping process on the lithium battery cell, and the lithium battery cell is suspended and supported through the positioning plate 20 before hot pressing, so that rolling of the lithium battery cell during hot pressing is avoided, the consistency of the tab position after hot pressing is ensured, and the customer's requirement for the tab position is met.

[0018] Specifically, as shown in the figure, Figure 4 The elastic assembly 40 comprises a positioning column 41 fixed on the base 10, an elastic member 42 is sleeved on the positioning column 41, and the bottom of the positioning plate 20 is provided with a positioning hole 22 for embedding the positioning column 41. Then, when the hot pressing plate presses down the lithium battery cell and drives the positioning plate 20 to descend, the positioning plate 20 is lifted and guided through the positioning column 41, and the positioning plate 20 is compressed in the elastic member 42 when descending, and the positioning plate 20 is reset through the elastic member 42 after the hot pressing plate is completed. The exemplary elastic member 42 can be a lightweight spring, and a spring with appropriate elasticity is selected. When the lithium battery cell is lowered and drives the positioning plate 20 to descend, the elastic member 42 can be compressed in time under the pressure and the weight of the lithium battery cell, and the elasticity of the elastic member 42 will not cause the tabs of the lithium battery cell to be bent and deformed.

[0019] Further, as shown in the figure, Figure 4 The side surface of the limiting block 30 is provided with a through groove 31, and the both ends of the positioning plate 20 are formed with abutting edges 21 which are movably arranged in the through groove 31. Then, before the hot pressing work, the positioning plate 20 is lifted up under the action of the spring, so that the abutting edges 21 abut against the top of the through groove 31, and when the cylindrical lithium battery cell is placed in the placing position between the two positioning plates 20, the bottom of the lithium battery cell will not contact the base 10, so that the problem of inconsistent tab position after hot pressing caused by rolling of the lithium battery cell is avoided. It should be noted that when the battery cell is placed in the placing position between the two positioning plates 20, only the lithium battery cell needs to be ensured not to contact the base 10, and a suitable distance can be provided between the bottom of the lithium battery cell and the base 10, so that the bottom of the lithium battery cell can abut against the surface of the base 10 when the hot pressing plate is pressed down, thereby completing the hot pressing process.

[0020] Further, the limiting block 30 is detachably arranged on the base 10 through a locking member. For example, the limiting block 30 can be connected with the base 10 through a bolt, so that the distance between two adjacent positioning plates 20 can be adjusted according to the size of the battery cell, thereby being compatible with lithium battery cells of different sizes.

[0021] In some embodiments, a plurality of positioning grooves for accommodating the tabs are arranged on both sides of the top surface of the positioning plate 20. When the lithium battery cell is placed in the placement position between the two positioning plates 20, the tabs at both ends of the lithium battery cell can be positioned through the positioning grooves, thereby avoiding the position deviation of the lithium battery cell before hot pressing.

[0022] Further, the hot press 50 is arranged above the base 10 and is provided with a hot pressing plate 51. The base 10 is placed on the fixing table, and the base 10 is fixed with the fixing table. Then, the lithium battery cell is placed on the positioning plate 20 of the base 10. The hot press 50 drives the hot pressing plate 51 to press on the surface of the lithium battery cell, so that the lithium battery cell is lowered and abuts against the base 10, thereby the hot pressing plate 51 completes the hot pressing and shaping process on the lithium battery cell.

[0023] In summary, the base is arranged with a plurality of positioning plates, the placement position for accommodating the lithium battery cell is formed between two adjacent positioning plates. The limiting block is arranged at both ends of the positioning plate. The positioning plate is arranged on the base through the elastic assembly. The positioning plate is lifted by the elastic assembly, so that both ends of the positioning plate abut against the limiting block, thereby limiting the positioning plate. When the cylindrical lithium battery cell is placed in the placement position between the two positioning plates, the tabs at both ends of the lithium battery cell are placed on the positioning plate, thereby the lithium battery cell is suspended on the base. When the hot pressing plate presses the lithium battery cell, the lithium battery cell compresses the elastic assembly by pressing the positioning plate, thereby the lithium battery cell is lowered on the base, so that the hot pressing plate completes the hot pressing and shaping process on the lithium battery cell. Before hot pressing, the lithium battery cell is suspended and supported by the positioning plate, thereby avoiding the rolling of the lithium battery cell during hot pressing, thereby ensuring the consistency of the position of the tab after hot pressing, and meeting the requirements of the customer on the position of the tab.

[0024] The above-described embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the protection scope of the technical solution.

Claims

1. A lithium cell trimming jig, characterized by: The utility model relates to a lithium battery cell positioning device, including base (10), a plurality of positioning plate (20) are arranged on the base (10), form the placement site of containing lithium battery cell between two adjacent positioning plate (20), the limiting block (30) is set in the both ends of positioning plate (20), the bottom of positioning plate (20) is liftable and is set on the base (10) through elastic component (40).

2. The lithium cell trimming jig according to claim 1, characterized by: The elastic component (40) includes the positioning column (41) fixed on the base (10), is equipped with elastic member (42) in the positioning column (41), the bottom of positioning plate (20) is equipped with the positioning hole (22) for the embedding of positioning column (41).

3. The lithium cell trimming jig according to claim 1, characterized by: The limiting block (30) side is equipped with through slot (31), and both ends of positioning plate (20) form and abut against the edge (21), and the abut against the edge (21) liftable and is arranged in the through slot (31).

4. The lithium cell trimming tool of claim 1, wherein: The top surface both sides of positioning plate (20) are also equipped with a plurality of positioning grooves for accommodating the tab.

5. The lithium cell trimming tool of claim 3, wherein: The limiting block (30) is detachably arranged on the base (10) by the locking member.

6. The lithium cell trimming tool of claim 3, wherein: It also includes a hot press (50), the hot press (50) bottom is provided with the fixed station of fixing the base (10), and the hot press (50) is provided with a hot press plate (51) above the base (10).

Images