Solid-state battery lamination pressing equipment

Abstract

The utility model relates to the technical field of battery manufacturing equipment, and discloses solid-state battery lamination pressing equipment, which comprises a bottom plate, a lamination table assembly and a pressurizing assembly are arranged at the top of the bottom plate, the lamination table assembly comprises a U-shaped plate, an elastic table is arranged in the U-shaped plate, two sides of the U-shaped plate are provided with propping mechanisms extending into the U-shaped plate, and the elastic table is arranged on the elastic table. The two abutting mechanisms are located at the top of the elastic table, the elastic table is used for stacking battery pole pieces, each abutting mechanism comprises an elastic arm assembly and a plurality of clamping plates, and the elastic arm assemblies are fixedly connected to the outer wall of the U-shaped plate; according to the utility model, through the cooperation of the elastic table and the propping mechanism, the stacked pole pieces play a role in pressing the interlayer, so that the positive and negative pole pieces of the battery can be tightly laminated, the stability of the overall structure of the battery can be improved, and the pole pieces can be pressed to the bottom of the propping mechanism through the output of the pressurizing assembly; and in the process, the stacked pole pieces can be positioned through the four side walls, so that the dislocation condition of the pole pieces can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and more specifically to a solid-state battery stacking and pressing device. Background Technology

[0002] Solid-state battery stacking technology involves stacking components such as positive and negative electrodes and solid electrolytes in a specific order and manner, and then integrating them through a series of processes to form a complete battery cell. Unlike the winding process of traditional liquid batteries, the stacking process involves layering components in sheet form, which can better adapt to the structural and performance requirements of solid-state batteries.

[0003] Existing battery stacking devices still have defects in use. For example, during the stacking process, a robotic arm is used to stack the positive and negative electrode sheets and electrolyte layer by layer. However, problems such as looseness and low precision often occur during the stacking process. If the stacking is too loose, it will lead to insufficient stability of the overall battery structure, making it easy to separate and affecting the service life. Insufficient precision means that the positive and negative electrode sheets are not stacked neatly. Subsequent operation steps are very likely to cause the already stacked structure to be misaligned and shifted, which seriously affects the stability and consistency of the internal structure of the cell. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a solid-state battery stacking and pressing device to solve the problem that traditional battery electrodes are prone to loosening and misalignment during the stacking process, which affects the overall structural stability of the battery.

[0005] This utility model provides the following technical solution: a solid-state battery stacking and pressing device, including a base plate, a stacking table assembly and a pressurizing assembly installed on the top of the base plate, the stacking table assembly including a U-shaped plate, an elastic platform provided inside the U-shaped plate, and abutment mechanisms extending into the interior on both sides of the U-shaped plate, two of the abutment mechanisms being located on the top of the elastic platform, the elastic platform being used for stacking battery electrodes, the abutment mechanism including an elastic arm assembly and several clamping plates, the elastic arm assembly being fixedly connected to the outer wall of the U-shaped plate, the several clamping plates being fixedly connected to the output end of the elastic arm assembly, one side of the clamping plate penetrating into the interior of the U-shaped plate, and one side of the clamping plate being provided with a slope a.

[0006] Furthermore, the inner wall of the U-shaped plate is fixedly connected to side walls at the four corners of the elastic platform.

[0007] Furthermore, the top of each of the four sidewalls is configured as a guide ramp.

[0008] Furthermore, the elastic arm assembly includes a plurality of connecting columns, one end of which is fixedly connected to the outer wall of the U-shaped plate, and the other end of which is fixedly connected to a fixed plate. A movable plate is slidably sleeved on the side wall of the plurality of connecting columns. One side of the movable plate is connected to the fixed plate via a plurality of springs, and the clamping plate is fixedly connected to the other side of the movable plate.

[0009] Furthermore, the number of the plurality of springs is the same as the number of the plurality of connecting posts, and the plurality of springs are respectively sleeved on the side walls of the plurality of connecting posts.

[0010] Furthermore, the inner wall of the U-shaped plate is provided with rail grooves on both sides, the elastic platform includes a main platform plate, and sliding blocks are fixedly connected to both sides of the main platform plate. The two sliding blocks are slidably sleeved in the rail grooves on both sides of the inner wall of the U-shaped plate, and the bottom of the sliding blocks is connected to the bottom of the rail groove through a spring.

[0011] Furthermore, a positioning post is provided in the U-shaped plate groove, the sliding block is slidably sleeved on the side wall of the positioning post, and the second spring is sleeved on the side wall of the positioning post.

[0012] Furthermore, the pressurization assembly includes two U-shaped booms, with beam plates fixedly connected to the top of the two U-shaped booms. A transverse groove extending from the top of the beam plate to the bottom is opened, and a sliding plate is slidably sleeved in the transverse groove. A pressure plate is fixedly connected to the bottom of the sliding plate. Electric cylinders are fixedly installed inside the two U-shaped booms, and the output ends of the two electric cylinders extend through to the top of the beam plate and are fixedly connected to the top of the sliding plate through a connecting rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention utilizes an elastic platform and a top-stopping mechanism to achieve a compacting effect on the stacked electrode sheets, thereby ensuring tight stacking of the positive and negative electrode sheets and improving the overall structural stability of the battery. The battery electrode sheets are stacked on top of the elastic platform, and the top-stopping mechanism provides support at the top of the stacked electrode sheets. The elasticity of the platform compresses the electrode sheets. During the stacking process, the electrode sheets are placed on top of the two top-stopping mechanisms, and the pressure output of the pressurizing component can press the electrode sheets to the bottom of the top-stopping mechanisms. In this process, the four side walls provide positioning for the stacked electrode sheets, thereby preventing misalignment and improving the accuracy of electrode stacking. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the stacking stage assembly structure in the middle;

[0017] Figure 3This utility model Figure 2 A schematic diagram of the flexible arm assembly structure in the diagram;

[0018] Figure 4 This utility model Figure 2 A schematic diagram of the elastic platform structure in the diagram;

[0019] Figure 5 This utility model Figure 1 A schematic diagram of the pressurization component structure.

[0020] The attached figures are labeled as follows: 1. Base plate; 2. Stacking table assembly; 3. Pressurizing assembly; 21. U-shaped plate; 22. Elastic table; 23. Top-stopping mechanism; 24. Side wall; 231. Elastic arm assembly; 232. Clamping plate; 241. Guide slope; 233. Connecting column; 234. Fixed plate; 235. Movable plate; 236. Spring 1; 221. Main platform plate; 222. Sliding block; 223. Spring 2; 224. Positioning column; 31. U-shaped boom; 32. Beam plate; 33. Electric cylinder; 34. Sliding plate; 35. Pressure plate; 36. Connecting rod. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Reference Figure 1 and Figure 2 This utility model provides a solid-state battery stacking and pressing device, including a base plate 1, a stacking table assembly 2 and a pressurizing assembly 3 installed on the top of the base plate 1. The stacking table assembly 2 includes a U-shaped plate 21, an elastic platform 22 is provided inside the U-shaped plate 21, and abutment mechanisms 23 extending into the interior are provided on both sides of the U-shaped plate 21. The two abutment mechanisms 23 are located on the top of the elastic platform 22. The elastic platform 22 is used to stack battery electrodes. The abutment mechanism 23 includes an elastic arm assembly 231 and several clamping plates 232. The elastic arm assembly 231 is fixedly connected to the outer wall of the U-shaped plate 21, and the several clamping plates 232 are fixedly connected to the output end of the elastic arm assembly 231. One side of the clamping plate 232 extends into the interior of the U-shaped plate 21, and one side of the clamping plate 232 is provided with a slope a.

[0023] In use, a robotic arm places the battery electrode sheets onto two abutment mechanisms 23. The edges of the electrode sheets abut against the slope a of several clamping plates 232. Pressure is applied to the battery electrode sheets through the output of the pressurizing component 3. Under the pressure, the electrode sheets slide along the slope a of the clamping plate 232. During this process, the clamping plate 232 is pressed and moved laterally under the action of the slope a, moving out of the U-shaped plate 21. At this time, the electrode sheets can reach the bottom of the clamping plate 232 to the top of the elastic platform 22. When the pressurizing component 3 returns to its position, the elastic force of the elastic arm component 231 causes the clamping plate 232 to return to its position and re-enter the U-shaped plate 21. At this time, the clamping plate 232 can form a partition on the top of the electrode sheets. In this way, the electrode sheets are stacked one by one on the top of the elastic platform 22. Through the elastic action of the elastic platform 22 and the partitioning effect of the clamping plate 232 on the top of the electrode sheets, the stacked electrode sheets are pressed together.

[0024] Reference Figure 2 The inner wall of the U-shaped plate 21 is fixedly connected to the side walls 24 at the four corners of the elastic platform 22.

[0025] By setting four side walls 24, the electrodes stacked on top of the elastic platform 22 can be positioned so that the edges of the stacked electrodes are against the inner walls of the four side walls 24, thereby ensuring that the electrodes are stacked neatly.

[0026] Reference Figure 2 The top of each of the four side walls 24 is set as a guide slope 241.

[0027] This setting ensures a certain degree of error tolerance when placing the electrode. When the electrode moves downward, the guide slope 241 can guide the moving electrode to achieve a precise placement position and angle.

[0028] Reference Figure 3 The elastic arm assembly 231 includes a plurality of connecting posts 233. One end of the plurality of connecting posts 233 is fixedly connected to the outer wall of the U-shaped plate 21, and the other end of the plurality of connecting posts 233 is fixedly connected to a fixed plate 234. A movable plate 235 is slidably sleeved on the side wall of the plurality of connecting posts 233. One side of the movable plate 235 is connected to the fixed plate 234 through a plurality of springs 236. A clamping plate 232 is fixedly connected to the other side of the movable plate 235.

[0029] When the locking plate 232 is subjected to force and moves laterally, the movable plate 235 connected to it slides on the side wall of several connecting columns 233, applying pressure to the spring 236. When the locking plate 232 is no longer subjected to force, the movable plate 235 can drive the locking plate 232 to reset through the elastic force of the spring 236.

[0030] Reference Figure 3 The number of springs 236 is the same as the number of connecting posts 233, and the springs 236 are respectively sleeved on the side walls of the connecting posts 233.

[0031] This setting ensures that spring 236 is prevented from bending and being damaged.

[0032] Reference Figure 4 The U-shaped plate 21 has rail grooves on both sides of its inner wall. The elastic platform 22 includes a main platform 221. Sliding blocks 222 are fixedly connected to both sides of the main platform 221. The two sliding blocks 222 are slidably sleeved in the rail grooves on both sides of the inner wall of the U-shaped plate 21. The bottom of the sliding block 222 is connected to the bottom of the rail groove through a spring 223.

[0033] When the pressurizing component 3 outputs pressure, the electrode plates stacked on top of the main plate 221 apply pressure to the main plate 221, thereby causing the main plate 221 to move downward, allowing the sliding block 222 to slide in the rail groove and apply pressure to the second spring 223. When the pressurizing component 3 is reset, the elastic force of the second spring 223 can cause the sliding block 222 to drive the main plate 221 to apply an upward force to the stacked electrode plates.

[0034] Reference Figure 4 A positioning post 224 is provided in the U-shaped plate 21 track groove, a sliding block 222 is slidably sleeved on the side wall of the positioning post 224, and a spring 223 is sleeved on the side wall of the positioning post 224.

[0035] Setting the positioning post 224 can improve the stability of the sliding block 222 when it moves, and prevent the spring 223 from bending.

[0036] Reference Figure 5 The pressurizing assembly 3 includes two U-shaped booms 31. A beam plate 32 is fixedly connected to the top of the two U-shaped booms 31. A transverse groove extending from the top to the bottom is opened on the top of the beam plate 32. A sliding plate 34 is slidably sleeved in the transverse groove. A pressure plate 35 is fixedly connected to the bottom of the sliding plate 34. An electric cylinder 33 is fixedly installed inside each of the two U-shaped booms 31. The output ends of the two electric cylinders 33 extend through to the top of the beam plate 32 and are fixedly connected to the top of the sliding plate 34 through a connecting rod 36.

[0037] In the initial state, the electric cylinder 33 is in an extended state. When the electric cylinder 33 retracts, under the connection effect of the connecting rod 36, it can drive the sliding plate 34 to move down, and through the sliding plate 34, it drives the pressure plate 35 to move down, thus achieving the actual downward pressure effect.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A solid-state battery stacking and pressing device, characterized in that: The device includes a base plate (1), on which a stacking platform assembly (2) and a pressurizing assembly (3) are mounted. The stacking platform assembly (2) includes a U-shaped plate (21), and an elastic platform (22) is provided inside the U-shaped plate (21). Top-stopping mechanisms (23) extending into the interior are provided on both sides of the U-shaped plate (21). Two top-stopping mechanisms (23) are located on the top of the elastic platform (22). The elastic platform (22) is used to stack battery electrodes. The top-stopping mechanism (23) includes an elastic arm assembly (231) and several clamping plates (232). The elastic arm assembly (231) is fixedly connected to the outer wall of the U-shaped plate (21), and several clamping plates (232) are fixedly connected to the output end of the elastic arm assembly (231). One side of the clamping plate (232) extends into the interior of the U-shaped plate (21), and one side of the clamping plate (232) is provided with a slope a.

2. The solid-state battery stacking and pressing device according to claim 1, characterized in that: The inner wall of the U-shaped plate (21) is fixedly connected to the side walls (24) at the four corners of the elastic platform (22).

3. The solid-state battery stacking and pressing device according to claim 2, characterized in that: The top of each of the four sidewalls (24) is configured as a guide ramp (241).

4. The solid-state battery stacking and pressing device according to claim 1, characterized in that: The elastic arm assembly (231) includes a plurality of connecting posts (233), one end of which is fixedly connected to the outer wall of the U-shaped plate (21), and the other end of which is fixedly connected to a fixed plate (234). A movable plate (235) is slidably sleeved on the side wall of the plurality of connecting posts (233). One side of the movable plate (235) is connected to the fixed plate (234) by a plurality of springs (236). The clamping plate (232) is fixedly connected to the other side of the movable plate (235).

5. A solid-state battery stacking and pressing device according to claim 4, characterized in that: The number of the plurality of springs (236) is the same as the number of the plurality of connecting posts (233), and the plurality of springs (236) are respectively sleeved on the side wall of the plurality of connecting posts (233).

6. The solid-state battery stacking and pressing device according to claim 1, characterized in that: The inner wall of the U-shaped plate (21) is provided with rail grooves on both sides. The elastic platform (22) includes a main platform plate (221). Sliding blocks (222) are fixedly connected to both sides of the main platform plate (221). The two sliding blocks (222) are slidably sleeved in the rail grooves on both sides of the inner wall of the U-shaped plate (21). The bottom of the sliding block (222) is connected to the bottom of the rail groove through a spring (223).

7. A solid-state battery stacking and pressing device according to claim 6, characterized in that: The U-shaped plate (21) has a positioning post (224) in its groove, the sliding block (222) is slidably sleeved on the side wall of the positioning post (224), and the second spring (223) is sleeved on the side wall of the positioning post (224).

8. A solid-state battery stacking and pressing device according to claim 1, characterized in that: The pressurizing assembly (3) includes two U-shaped booms (31), with beam plates (32) fixedly connected to the top of the two U-shaped booms (31). A transverse groove extending to the bottom is opened at the top of the beam plate (32), and a sliding plate (34) is slidably sleeved in the transverse groove. A pressure plate (35) is fixedly connected to the bottom of the sliding plate (34). Electric cylinders (33) are fixedly installed inside the two U-shaped booms (31). The output ends of the two electric cylinders (33) extend through to the top of the beam plate (32) and are fixedly connected to the top of the sliding plate (34) through a connecting rod (36).

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