Pressurizing and pressure maintaining device for solid-state battery

Abstract

The utility model belongs to the technical field of batteries, and discloses a solid-state battery pressurizing and pressure maintaining device which comprises a feeding table, a carrier and a pressurizing module, the carrier is detachably installed on the feeding table and comprises an upper pressing piece, a lower pressing piece and a locking piece, a containing space for containing a piece to be pressurized is defined between the upper pressing piece and the lower pressing piece, the locking piece is used for locking the upper pressing piece, and the pressurizing module is used for pressurizing the piece to be pressurized. The height of the accommodating space is limited; and the pressurizing module is installed on the feeding table and used for pressurizing the carrier. According to the solid-state battery pressurization and pressure maintaining device, pressurization of the solid-state battery is achieved by pressurizing the carrier through the pressurization module, pressure maintaining of the solid-state battery is achieved by locking the upper pressing piece through the locking piece, the pressurization and pressure maintaining process of the solid-state battery is conveniently and accurately achieved, and the manufacturing yield and the product quality of the solid-state battery are improved.

Description

Technical Field

[0001] This utility model relates to the field of solid-state battery manufacturing technology, and in particular to a solid-state battery pressurization and pressure holding device. Background Technology

[0002] Existing pressure-holding devices are typically designed for prismatic batteries, which have a smaller pressure-bearing capacity, a smaller coefficient of expansion during charge and discharge, and require lower holding pressures. However, solid-state batteries are pouch cells, requiring much higher holding pressures, sometimes reaching 25 tons. Furthermore, pouch cells have a large coefficient of expansion during charge and discharge, making them prone to pressure fluctuations during the holding process. Therefore, existing pressure-holding device structures cannot meet the pressure-holding requirements of solid-state batteries. Utility Model Content

[0003] The purpose of this invention is to provide a solid-state battery pressurization and pressure holding device, which can effectively realize the pressurization and pressure holding process of solid-state batteries, thereby improving the manufacturing yield of solid-state batteries.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A solid-state battery pressurization and pressure holding device includes: a loading platform; a carrier detachably mounted on the loading platform and including an upper pressing member, a lower pressing member, and a locking member, wherein the upper pressing member and the lower pressing member define a receiving space for accommodating a component to be pressurized, and the locking member is used to lock the upper pressing member to limit the height of the receiving space; and a pressurization module mounted on the loading platform and used to pressurize the carrier.

[0006] The advantages of this solid-state battery pressurization and pressure holding device are as follows: pressurization of the solid-state battery is achieved by pressurizing the pressurization module toward the carrier, and pressure holding of the solid-state battery is achieved by locking the upper pressure component with the locking component. This device can conveniently and accurately realize the pressurization and pressure holding process of the solid-state battery, which is conducive to improving the manufacturing yield and product quality of solid-state batteries.

[0007] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the solid-state battery pressurization and pressure holding device according to an embodiment of the present invention, showing the support plate located at the loading position.

[0009] Figure 2 This is a schematic diagram of the solid-state battery pressurization and pressure holding device according to an embodiment of the present invention, showing the support plate in the working position.

[0010] Figure 3 yes Figure 2 The circled area is a magnified view of a portion of point A;

[0011] Figure 4 This is a schematic diagram of the structure of the vehicle according to an embodiment of the present invention.

[0012] Figure label:

[0013] 100. Loading platform; 110. Slide rail; 120. Limit block;

[0014] 200. Carrier; 210. Upper pressure component; 211. First pressure plate; 2111. First bushing; 212. Second pressure plate; 2121. Second bushing; 213. Second elastic element; 214. Third pressure plate; 2141. Lifting lug; 215. First pressure detection device; 220. Lower pressure component; 230. Locking component; 240. First elastic element; 250. Support column; 260. Buffer pad;

[0015] 300, pressurization module; 310, pressurization drive component; 320, pressurization component; 321, pressurization plate; 322, snap-fit ​​part; 330, second pressure detection device; 340, pressurization bracket; 350, guide column; 360, third bushing;

[0016] 400, tray; 410, limiting groove; 420, handle; 430, slider;

[0017] 500. Limiting components; 10. Solid-state batteries. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] This utility model discloses a solid-state battery pressurization and pressure maintenance device, reference... Figures 1-4 As shown, the solid-state battery pressurization and pressure holding device of this embodiment includes a loading platform 100, a carrier 200, and a pressurization module 300. The carrier 200 is detachably installed on the loading platform 100 and includes an upper pressing member 210, a lower pressing member 220, and a locking member 230. The upper pressing member 210 and the lower pressing member 220 define a receiving space for accommodating the component to be pressurized. The locking member 230 is used to lock the upper pressing member 210 to limit the height of the receiving space. The pressurization module 300 is installed on the loading platform 100 and is used to pressurize the carrier 200. Understandably, in the actual working process, the carrier 200 is first installed on the loading platform 100, and then the solid-state battery 10 that needs to be pressurized and maintained is installed inside the receiving space. Then, the pressurization module 300 is activated to pressurize the carrier 200 to achieve pressurization of the solid-state battery 10. Then, the locking member 230 is used to lock the upper pressing member 210 relative to the lower pressing member 220, and the pressurization module 300 is withdrawn. Finally, the entire carrier 200 is placed in the stationary space. Due to the locking effect of the locking member 230, the solid-state battery 10 is always subjected to a large pressure to achieve the pressure maintenance process of the solid-state battery 10. The solid-state battery pressurization and pressure holding device of this embodiment pressurizes the solid-state battery 10 by pressurizing the pressurization module 300 toward the carrier 200, and holds the solid-state battery 10 by locking the upper pressure member 210 with the locking member 230. It realizes the pressurization and pressure holding process of the solid-state battery 10 in a more convenient and accurate way, which is beneficial to improving the manufacturing yield and product quality of the solid-state battery 10.

[0022] refer to Figure 4 As shown, the carrier 200 also includes a first elastic element 240, which is installed between the upper pressure member 210 and the lower pressure member 220. It is understood that the added first elastic element 240 is used to support the upper pressure member 210, ensuring that the accommodating space between the upper pressure member 210 and the lower pressure member 220 has sufficient height to facilitate manual placement of the battery. Further optionally, to improve the installation stability of the first elastic element 240, a first fixing post is provided on the lower pressure member 220, and the first elastic element 240 is a spring, with one end sleeved on the first fixing post. Of course, in other embodiments of this utility model, the first elastic element 240 may also be an elastic gasket or other elastic structural component.

[0023] refer to Figure 4 As shown, the upper pressure member 210 includes a first pressure plate 211 and a second pressure plate 212 spaced apart. A receiving space is defined between the second pressure plate 212 and the lower pressure member 220. The upper pressure member 210 also includes a second elastic member 213, which is installed between the first pressure plate 211 and the second pressure plate 212. It is understandable that during the high-temperature static pressure holding process, the solid-state battery 10 will expand. Since the upper pressure member 210 is locked by the locking member 230 at this time, without a buffer, the solid-state battery 10 will be damaged due to excessive pressure caused by the expansion force. In this embodiment, the upper pressure member 210 is divided into a first pressure plate 211 and a second pressure plate 212. In actual operation, when the upper pressure member 210 is locked by the locking member 230, since a second elastic member 213 is also provided between the first pressure plate 211 and the second pressure plate 212, the solid-state battery 10 expands and pushes the second pressure plate 212 to move upward, and the second elastic member 213 is compressed. The second elastic member 213 plays a buffering role, which can maintain the second pressure plate 212 on the solid-state battery 10 with a large pressure, and can also avoid damage caused by excessive pressure on the solid-state battery 10.

[0024] Optional, see reference Figure 4 As shown, there are multiple second elastic elements 213, and these multiple second elastic elements 213 are arranged in multiple rows and columns. It can be understood that setting multiple second elastic elements 213 can achieve uniform buffering, ensuring that the pressure from the second pressure plate 212 on each position of the solid-state battery 10 is basically the same, thus ensuring pressure uniformity.

[0025] Optional, see reference Figure 4 As shown, the upper pressure component 210 also includes a third pressure plate 214, which is spaced apart from the first pressure plate 211. The pressurizing module 300 can pressurize the third pressure plate 214. The upper pressure component 210 also includes a first pressure detection device 215 installed between the first pressure plate 211 and the third pressure plate 214. It can be understood that by setting the third pressure plate 214 and the first pressure detection device 215, when the pressurizing module 300 applies pressure to the third pressure plate 214, the first pressure detection device 215 can detect in real time the pressure from the third pressure plate 214 on the second pressure plate 212. This pressure is the pressure added to the solid-state battery 10, realizing real-time monitoring of the pressure on the solid-state battery 10 during pressurization and pressure holding processes, and ensuring the manufacturing yield of the solid-state battery 10.

[0026] refer to Figure 4As shown, the carrier 200 includes a support column 250. One end of the support column 250 is detachably connected to the lower pressure member 220, and the other end of the support column 250 extends through the upper pressure member 210 (passing sequentially through the second pressure plate 212, the first pressure plate 211, and the third pressure plate 214). A locking member 230 is installed at the end of the support column 250 that extends through the third pressure plate 214. It is understood that during actual operation, the pressurizing module 300 can drive the upper pressure member 210 to move downwards. The support column 250 serves two purposes: firstly, it guides the upper pressure member 210 so that it can only move vertically, ensuring stability during pressurization; secondly, the support column 250 is used to install the locking member 230, facilitating user installation and removal of the locking member 230, thereby enabling user locking and unlocking of the first pressure plate 211.

[0027] Optionally, the second elastic element 213 is a spring, and a portion of the second elastic element 213 is sleeved on the support column 250. It is understood that the sleeved second elastic element 213 on the support column 250 can stabilize the second elastic element 213, preventing the second elastic element 213 from bending during the pressure holding process, thereby ensuring the stable conduct of the pressure holding process.

[0028] Optionally, a second fixing post is provided on the second pressure plate 212, and one end of the second elastic member 213 is sleeved on the second fixing post, while the other end abuts against the first pressure plate 211. It can be understood that the second elastic member 213 sleeved on the second fixing post can stabilize the second elastic member 213 and prevent the second elastic member 213 from bending during the pressure holding process, thereby ensuring the stable progress of the pressure holding process.

[0029] Optionally, the support column 250 is provided with a threaded section, and the locking member 230 includes a nut that mates with the threaded section. It is understood that the locking member 230 is installed with the support column 250 via a threaded connection. After the pressurization process is completed, a tightening gun can be used to tighten the nut, conveniently and stably locking the upper pressure member 210. Of course, it should be noted that in other embodiments of this utility model, the locking member 230 can also be a clamp or other structure that snaps onto the support column 250, and is not limited to the nut in this embodiment.

[0030] Optional, see reference Figure 4 As shown, the third pressure plate 214 is provided with multiple lifting lugs 2141. In actual operation, lifting equipment (robotic arm or crane) can be used in conjunction with the lifting lugs 2141 to realize the transportation of the entire carrier 200, so that the carrier 200 can be stably placed on the loading platform 100 or the carrier 200 can be moved away from the loading platform 100.

[0031] Optional, see reference Figure 4As shown, a first bushing 2111 is provided on the first pressure plate 211, and a second bushing 2121 is provided on the second pressure plate 212. The support column 250 passes through the first bushing 2111 and the second bushing 2121. It can be understood that by providing the first bushing 2111 and the second bushing 2121, the friction between the support column 250 and the first pressure plate 211 and the second pressure plate 212 can be reduced, thereby extending the service life of the carrier 200.

[0032] Optional, see reference Figure 4 As shown, a buffer pad 260 is provided on the second pressure plate 212 and the lower pressure member 220. It is understood that if the second pressure plate 212 and the lower pressure member 220 directly contact the solid-state battery 10, the surface of the solid-state battery 10 may be scratched or damaged during pressurization and pressure holding. Providing a buffer pad 260 on the second pressure plate 212 and the lower pressure member 220 ensures that the solid-state battery 10 is well protected under sufficient pressure, preventing damage during pressurization and pressure holding. The material, thickness, and size of the buffer pad 260 can be selected according to actual needs. The buffer pad 260 can be glued to the second pressure plate 212 or the lower pressure member 220 or connected to the second pressure plate 212 or the lower pressure member 220 through other connection methods.

[0033] refer to Figure 3 As shown, the solid-state battery pressurization and pressure-holding device also includes a tray 400, which is slidably mounted on the loading platform 100. The tray 400 has a limiting groove 410, and the carrier 200 is installed in the limiting groove 410. Understandably, in actual operation, the carrier 200 is lifted and placed on the tray 400 by using a lifting device in conjunction with the lifting lug 2141. After the operator installs the solid-state battery 10 into the receiving space, they push the tray 400 to move the carrier 200 directly below the pressurization module 300, and then activate the pressurization module 300 to initiate the pressurization process. This facilitates operation. The limiting groove 410 on the tray 400 effectively restricts the carrier 200, preventing it from swaying during movement.

[0034] Optional, see reference Figure 3 As shown, a handle 420 is provided on the pallet 400 to facilitate the operator to push the pallet 400 to move.

[0035] It should be noted that the loading platform 100 is equipped with a loading position ( Figure 1 (as shown) and workstation ( Figure 2As shown in the diagram, during actual operation, the carrier 200 is lifted and placed on the loading position of the pallet 400 using lifting equipment in conjunction with the lifting lug 2141. After the operator installs the solid-state battery 10 into the receiving space, they push the pallet 400 to move the carrier 200 to the working position. The division between the loading position and the working position enables precise positioning of the pallet 400, facilitating the precise positioning of the carrier 200.

[0036] Optional, see reference Figure 3 As shown, the loading platform 100 is equipped with a slide rail 110, and the pallet 400 is equipped with a slider 430, which is slidably mounted on the slide rail 110. It is understood that when the operator manually pushes the pallet 400, the cooperation between the slider 430 and the slide rail 110 can limit and guide the movement of the pallet 400, preventing the pallet 400 from tilting and thus avoiding the phenomenon that the carrier 200 cannot be aligned with the pressurization module 300.

[0037] Further optional, see reference Figure 3 As shown, there are two slide rails 110, which are spaced apart in a direction perpendicular to their extension direction. The support plate 400 is provided with two sets of sliders 430, which respectively cooperate with the two slide rails 110. This further ensures the sliding stability of the support plate 400 and prevents it from tilting.

[0038] Further options are available, see reference. Figure 3 As shown, the loading platform 100 is also equipped with a limit block 120, which is installed between two slide rails 110. When the pallet 400 stops against the limit block 120, the operator cannot continue to push the pallet 400, thus realizing the precise switching of the pallet 400 between the loading position and the working position.

[0039] Optionally, the pallet 400 is provided with a first limiting hole, and the loading platform 100 is provided with a second limiting hole. The limiting member 500 passes through the first limiting hole and engages with the second limiting hole to limit and fix the pallet 400 to the loading platform 100. It is understood that during the pressurization process, if the carrier 200 shakes, it will cause a pressurization deviation, resulting in excessive local stress on the solid-state battery 10. In this embodiment, after the operator installs the solid-state battery 10 into the receiving space, the pallet 400 is pushed to move the carrier 200 to the working position. Then, the limiting member 500 passes through the first limiting hole and engages with the second limiting hole to limit and fix the pallet 400 to the loading platform 100, ensuring the stability of the pallet 400 and the carrier 200 during the pressurization process, and ensuring that the solid-state battery 10 can be stably pressurized. It should be noted that the limiting member 500 can be selected from structures such as pins and screws according to actual needs. In other embodiments of this utility model, the pallet 400 can also be fixed to the loading table 100 by other structures, such as by a snap-fit ​​structure.

[0040] refer to Figure 3 As shown, the pressurization module 300 includes a pressurization drive 310, a pressurization component 320, and a second pressure detection device 330. The pressurization drive 310 is connected to the pressurization component 320, and the second pressure detection device 330 is used to detect the pressure applied to the pressurization component 320. It can be understood that the second pressure detection device 330 can detect the pressure output by the pressurization module 300 in real time, enabling real-time monitoring of the pressure output by the pressurization module 300. In conjunction with the first pressure detection device 215, it can ensure that the pressure acting on the solid-state battery 10 remains within a relatively stable value (e.g., 25 tons), thereby achieving stable pressurization and pressure maintenance of the solid-state battery 10.

[0041] Optional, see reference Figure 3 As shown, the pressure-applying component 320 includes a pressure plate 321 and a snap-fit ​​portion 322. The pressure plate 321 is used to contact the upper pressure component 210, and the snap-fit ​​portion 322 is snapped into the output shaft of the pressure-applying drive component 310. The second pressure detection device 330 is mounted on the pressure plate 321. The second pressure detection device 330 is located inside the snap-fit ​​portion 322 and is positioned directly opposite the output shaft of the pressure-applying drive component 310. It can be understood that by connecting the pressure-applying drive component 310 through the snap-fit ​​portion 322 and installing the second pressure detection device 330, both installation and disassembly can be easily achieved, and the stability of the second pressure detection device 330 in testing pressure can be ensured.

[0042] Optional, see reference Figure 3As shown, the pressurization module 300 also includes a pressurization bracket 340 and a guide post 350. The pressurization bracket 340 is mounted on the loading platform 100 and is used to mount the pressurization drive component 310. The guide post 350 passes through the pressurization bracket 340 and is connected at one end to the pressurization plate 321. It is understood that during actual operation, the guide post 350 guides the movement of the pressurization plate 321, ensuring that the pressurization plate 321 can only move vertically, thus preventing localized pressure imbalance in the solid-state battery 10 caused by the tilting of the pressurization plate 321.

[0043] Alternatively, a third bushing 360 may be provided between the guide post 350 and the pressure bracket 340, which can reduce friction.

[0044] The specific working process of the solid-state battery pressurization and pressure holding device in this embodiment is described below.

[0045] Step 1: The carrier 200 is transported to the pallet 400 located at the loading position by the hoisting device, and the solid-state battery 10 is installed on the pressing component 220;

[0046] Step 2: The operator pushes the pallet 400 to the working position, and the pressurizing module 300 applies pressure to the third pressure plate 214. The pressure applied by the pressurizing module 300 is adjustable and can be dynamically monitored by the second pressure detection device 330.

[0047] Step 3: After the pressure reaches the required level, the operator uses a tightening gun to tighten the nut, thereby enabling the carrier 200 to perform the pressure holding function. After the carrier 200 completes the pressure holding, the pressurization module 300 is removed, and the carrier 200 is placed in a stationary position by a hoisting device for pressure holding. The pressure during the pressure holding process is dynamically monitored by the first pressure detection device 215 inside the carrier 200.

[0048] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A solid-state battery pressurization and pressure-holding device, characterized in that, include: Loading platform (100); A carrier (200) is detachably mounted on the loading platform (100) and includes an upper pressure member (210), a lower pressure member (220), and a locking member (230). The upper pressure member (210) and the lower pressure member (220) define a receiving space for accommodating a component to be pressurized. The locking member (230) is used to lock the upper pressure member (210) to limit the height of the receiving space. A pressurizing module (300) is installed on the loading platform (100) and is used to pressurize the carrier (200).

2. The solid-state battery pressurization and pressure-holding device according to claim 1, characterized in that, The carrier (200) further includes a first elastic element (240) which is installed between the upper pressure member (210) and the lower pressure member (220).

3. The solid-state battery pressurization and pressure-holding device according to claim 1, characterized in that, The upper pressure member (210) includes a first pressure plate (211) and a second pressure plate (212) spaced apart. The second pressure plate (212) and the lower pressure member (220) define the receiving space. The upper pressure member (210) also includes a second elastic member (213), which is installed between the first pressure plate (211) and the second pressure plate (212).

4. The solid-state battery pressurization and pressure holding device according to claim 3, characterized in that, The upper pressure member (210) also includes a third pressure plate (214), which is spaced apart from the first pressure plate (211). The pressurizing module (300) can pressurize the third pressure plate (214). The upper pressure member (210) also includes a first pressure detection device (215) installed between the first pressure plate (211) and the third pressure plate (214).

5. The solid-state battery pressurization and pressure-holding device according to claim 1, characterized in that, The carrier (200) includes a support column (250), one end of which is detachably connected to the lower pressure member (220), the other end of which extends through the upper pressure member (210), and the locking member (230) is installed at the end of the support column (250) that extends through the upper pressure member (210).

6. The solid-state battery pressurization and pressure-holding device according to claim 5, characterized in that, The support column (250) is provided with a threaded section, and the locking member (230) includes a nut that fits into the threaded section.

7. The solid-state battery pressurization and pressure-holding device according to any one of claims 1-6, characterized in that, It also includes a pallet (400), which is slidably mounted on the loading platform (100). The pallet (400) has a limiting groove (410), and the carrier (200) is installed in the limiting groove (410); wherein: One of the pallet (400) and the loading platform (100) is provided with a slide rail (110), and the other of the pallet (400) and the loading platform (100) is provided with a slider (430), which is slidably mounted on the slide rail (110).

8. The solid-state battery pressurization and pressure-holding device according to claim 7, characterized in that, The pallet (400) is provided with a first limiting hole, and the loading platform (100) is provided with a second limiting hole. The limiting member (500) passes through the first limiting hole and cooperates with the second limiting hole to limit and fix the pallet (400) to the loading platform (100).

9. The solid-state battery pressurization and pressure-holding device according to any one of claims 1-6, characterized in that, The pressurization module (300) includes a pressurization drive (310), a pressurization component (320), and a second pressure detection device (330). The pressurization drive (310) is connected to the pressurization component (320), and the second pressure detection device (330) is used to detect the pressure on the pressurization component (320).

10. The solid-state battery pressurization and pressure-holding device according to claim 9, characterized in that, The pressurizing component (320) includes a pressurizing plate (321) and a snap-fit ​​part (322). The pressurizing plate (321) is used to contact the upper pressurizing component (210). The snap-fit ​​part (322) is snapped with the output shaft of the pressurizing drive component (310). The second pressure detection device (330) is installed on the pressurizing plate (321). The second pressure detection device (330) is located inside the snap-fit ​​part (322) and is positioned directly opposite the output shaft of the pressurizing drive component (310).

Images