Solid-state battery pressurizing mold

Abstract

The utility model discloses a solid-state battery pressurizing mould, which relates to the field of solid-state battery testing equipment and comprises a base, a placing groove is arranged in the middle of the top of the base, and three threaded grooves are arranged on the outer side of the placing groove. The length of the connecting rod can be adjusted, the universality of the mold is remarkably improved, the application range of the mold is remarkably widened, the mold can easily adapt to the design of ceramic battery tubes, sleeve rods, abutting blocks and mounting threaded blocks of different heights, accurate adjustment and stable connection of the length of the connecting rod are ensured, and the requirements of battery tubes of different sizes are met; the height of the screw rod is allowed to be easily adjusted by a user, the pressurizing space of the mold is further adjusted so as to adapt to ceramic battery tubes of various models, the accuracy and consistency of the mold are ensured, and the design of the top plate and the through hole ensures uniform pressurizing and provides stable connecting points.

Description

Technical Field

[0001] The utility model relates to the field of solid-state battery testing equipment, and particularly to a pressure mold for solid-state batteries. Background Technique

[0002] The pressure mold for solid-state batteries is a key device in the performance testing of solid-state batteries. Its main function is to apply appropriate pressure to both sides of the battery when testing the performance of solid-state soft-pack batteries. The role of this device is crucial. It can not only ensure the close fit between the positive and negative electrodes and the electrolyte inside the battery, improving the accuracy of the test, but also prevent the detachment caused by the volume expansion of the positive and negative electrodes during long-term cycling, thereby ensuring the cycling stability of solid-state batteries. When operating the pressure mold for solid-state batteries, it is usually necessary to fix the insulating mold in the glove box using a transfer fixture, then place it in a tablet press and apply an appropriate pressure. After that, the pressure is released by tightening the screws on the fixed mold, and finally, the transfer fixture and the insulating mold are taken out together for subsequent testing work. This series of operation processes ensures that the pressure mold for solid-state batteries can correctly and effectively apply pressure to the battery, providing strong support for the performance testing of solid-state batteries.

[0003] In the design of the existing pressure mold for solid-state batteries, although the base and the top plate are fixed through three connecting rods, and pressure is applied to the ceramic battery tube by pressing down the ejector rod, achieving the basic pressure application function, there is a significant defect in its design. Since the lengths of the three connecting rods are fixed, the mold cannot flexibly adapt to all types and sizes of ceramic battery tubes. In practical applications, this fixed-length design greatly limits the versatility and application range of the mold. For battery tubes of different specifications or sizes, it may be necessary to customize connecting rods of different lengths or even completely different molds to fit, which undoubtedly increases the cost, complexity, and inconvenience of the test. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide a pressure mold for solid-state batteries to solve the technical problems that the existing mold cannot flexibly adapt to all types and sizes of ceramic battery tubes due to the fixed length of the connecting rods, resulting in limited versatility and application range, and may increase the test cost, complexity, and inconvenience.

[0005] To achieve the above object, the present utility model provides the following technical solution: A pressure mold for solid-state batteries, including a base, a placement groove is opened in the middle of the top of the base, three threaded grooves are arranged outside the placement groove, and an adjusting connecting rod is arranged above the threaded grooves;

[0006] The adjusting connecting rod includes a sleeve rod, a resisting block is arranged at the bottom of the sleeve rod, an installation threaded block is arranged at the bottom of the resisting block, the installation threaded block is screwed with the threaded groove, and the resisting block is in contact with the base;

[0007] A threaded sleeve groove is provided at the top of the sleeve rod. A screw rod is threadedly connected inside the threaded sleeve groove. A marking piece is provided at the bottom of the screw rod. An adjustment hole is provided at the top of the screw rod, and the adjustment hole is used to adjust the height of the screw rod.

[0008] By adopting the above technical solution, the length of the connecting rod is adjusted by adjusting the combination of the connecting rod and the threaded groove, so that the mold can adapt to ceramic battery tubes of different heights, improving the versatility and application range.

[0009] Furthermore, a visible port is provided on the outer surface of the sleeve rod. A scale mark is provided on one side of the visible port, and the visible port is used to observe the marking piece.

[0010] By adopting the above technical solution, a visible port and a scale mark are provided on the outer surface of the sleeve rod, enabling users to directly observe the position of the marking piece, thereby performing precise measurement and adjustment to ensure the accuracy and consistency of the mold.

[0011] Furthermore, three adjusting connecting rods are provided. The three adjusting connecting rods are at the same horizontal height as the marking piece through the scale mark.

[0012] By adopting the above technical solution, the mold is provided with three adjusting connecting rods, and the scale mark and the marking piece ensure that they are at the same horizontal height, providing a more stable support and pressing effect and being applicable to ceramic battery tubes of various sizes.

[0013] Furthermore, the three adjusting connecting rods are used to adapt to different models of ceramic battery tubes after adjustment. A top plate is provided above the screw rod.

[0014] By adopting the above technical solution, the three adjusting connecting rods can adapt to different models of ceramic battery tubes after adjustment, increasing the flexibility of the mold. At the same time, the top plate provided above the screw rod provides a uniform pressing surface.

[0015] Furthermore, through holes are provided at the bottom of the top plate. The through holes are sleeved with the screw rod, and the through holes are engaged and slidable with the screw rod.

[0016] By adopting the above technical solution, the through holes provided at the bottom of the top plate are sleeved with the screw rod and allow for engaged sliding, ensuring the stability and uniformity of the top plate during the pressing process.

[0017] Furthermore, a tightening bolt is provided above the top plate. The tightening bolt is threadedly connected to the screw rod.

[0018] By adopting the above technical solution, the tightening bolt provided above the top plate is threadedly connected to the screw rod and is used to fix the position of the top plate before pressing to prevent loosening and ensure the accuracy and stability of the test.

[0019] Further, a pressure sensor is arranged above the placement groove. The pressure sensor is engaged and slidable with the placement groove. A stress surface is arranged at the top of the pressure sensor. A transmission line is arranged on one side of the stress surface. A first insulating sheet is arranged above the stress surface, and the first insulating sheet is sleeved with the pressure sensor. A limiting groove is formed at the top of the first insulating sheet.

[0020] By adopting the above technical solution, a pressure sensor is arranged above the placement groove, which can monitor the pressure change in the pressurization process in real time and transmit the data through the transmission line, improving the accuracy and controllability of the test. At the same time, the first insulating sheet provides additional insulation protection.

[0021] Further, a ceramic battery tube is arranged above the limiting groove. The limiting groove is used for placing the ceramic battery tube. A second insulating sheet is arranged above the ceramic battery tube.

[0022] By adopting the above technical solution, the design of the limiting groove is used to accurately place the ceramic battery tube, ensuring its stable position in the pressurization process and improving the reliability of the test.

[0023] Further, the second insulating sheet is sleeved with the ceramic battery tube, and the top plate abuts against the second insulating sheet.

[0024] By adopting the above technical solution, the second insulating sheet is sleeved with the ceramic battery tube, providing an additional insulating layer to protect the battery tube from damage during the pressurization process.

[0025] Further, a mortgaging surface is formed at the center of the top of the top plate. The mortgaging surface is used to abut against an external pressure device.

[0026] By adopting the above technical solution, the mortgaging surface formed at the center of the top of the top plate is used to abut against an external pressure device, ensuring the stability and uniformity of the pressurization process and improving the accuracy and repeatability of the test.

[0027] In summary, the utility model mainly has the following beneficial effects:

[0028] The utility model solves the problem that the existing mold cannot flexibly adapt to all types and sizes of ceramic battery tubes due to the fixed length of the connecting rod, improves the versatility and application range of the mold, and reduces the test cost, complexity and inconvenience. By setting an adjusting connecting rod, the combination of the threaded groove and the adjusting connecting rod allows the length of the connecting rod to be adjusted, enabling the mold to adapt to ceramic battery tubes of different heights, thereby improving its versatility and application range. The design of the sleeve rod, the abutting block and the mounting threaded block ensures the precise adjustment of the connecting rod length and maintains a stable connection, thus adapting to battery tubes of different sizes. The setting of the threaded sleeve groove, the screw rod and the adjusting hole enables the user to easily adjust the height of the screw rod and further adjust the pressurizing space of the mold to adapt to different models of ceramic battery tubes. The addition of the viewing port and the scale provides precise measurement and adjustment means to ensure the accuracy and consistency of the mold. The design of the top plate and the through hole ensures that the ceramic battery tube is uniformly pressurized and provides a stable connection point. When tightening the bolt, a special tool needs to be inserted into the adjusting hole first to ensure that the screw rod does not rotate during the tightening process, thereby ensuring the stability of the mold during the pressurizing process and preventing test errors or damage caused by loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective structural view of the utility model;

[0030] Figure 2 is a front perspective structural view of the utility model;

[0031] Figure 3 is a partial perspective structural view of the adjusting connecting rod of the utility model;

[0032] Figure 4 For the utility model Figure 3 is an enlarged structural view of part A in the figure.

[0033] In the figure: 1, base; 101, placement groove; 102, threaded groove; 2, pressure sensor; 201, stress surface; 202, transmission line; 3, first insulating sheet; 301, limiting groove; 4, ceramic battery tube; 5, second insulating sheet; 6, top plate; 601, through hole; 602, abutting surface; 7, tightening bolt; 8, adjusting connecting rod; 801, sleeve rod; 802, abutting block; 803, mounting threaded block; 804, threaded sleeve groove; 805, scale; 806, screw rod; 807, adjusting hole; 808, viewing port; 809, marking piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] The following will describe the embodiments according to the overall structure of the present utility model.

[0038] A solid-state battery pressing mold, as Figures 1 - 4 shown, includes a base 1. A placement groove 101 is opened in the middle of the top of the base 1. Three threaded grooves 102 are arranged outside the placement groove 101. An adjusting link 8 is arranged above the threaded grooves 102. The adjusting link 8 includes a sleeve rod 801. A pressing block 802 is arranged at the bottom of the sleeve rod 801. An installation threaded block 803 is arranged at the bottom of the pressing block 802. The installation threaded block 803 is screwed with the threaded groove 102, and the pressing block 802 abuts against the base 1. A threaded sleeve groove 804 is opened at the top of the sleeve rod 801. A screw rod 806 is threadedly connected inside the threaded sleeve groove 804. A marking piece 809 is arranged at the bottom of the screw rod 806. An adjusting hole 807 is arranged at the top of the screw rod 806. The adjusting hole 807 is used to adjust the height of the screw rod 806. Through the combined design of the adjusting link 8 and the threaded groove 102, the length of the link is allowed to be adjusted, enabling the mold to adapt to ceramic battery tubes of different heights, significantly improving the versatility and application range of the mold. At the same time, the designs of the sleeve rod 801, the pressing block 802 and the installation threaded block 803 ensure the precise adjustment and stable connection of the link length.

[0039] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , a visible opening 808 is provided on the outer surface of the sleeve rod 801, a scale mark 805 is provided on one side of the visible opening 808, the visible opening 808 is used to observe the marking piece 809, and the visible opening 808 and the scale mark 805 provided on the outer surface of the sleeve rod 801 enable the user to directly observe the position of the marking piece 809, so as to perform precise measurement and adjustment, ensuring the accuracy and consistency of the die adjustment.

[0040] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , there are three adjusting connecting rods 8, and the three adjusting connecting rods 8 are at the same horizontal height as the marking piece 809 through the scale mark 805. The die is provided with three adjusting connecting rods 8, and they are ensured to be at the same horizontal height as the marking piece 809 through the scale mark 805. This design provides a more stable support and pressing effect, enabling the die to adapt to ceramic battery tubes of various sizes.

[0041] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , the three adjusting connecting rods 8 are used to adapt to ceramic battery tubes 4 of different models after adjustment. A top plate 6 is provided above the screw rod 806. The three adjusting connecting rods 8 can adapt to ceramic battery tubes 4 of different models after adjustment, increasing the flexibility of the die. At the same time, the top plate 6 provided above the screw rod 806 provides a uniform pressing surface, ensuring the consistency and stability of the pressing process.

[0042] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , a through hole 601 is opened at the bottom of the top plate 6, the through hole 601 is sleeved with the screw rod 806, and the through hole 601 is engaged and slidable with the screw rod 806. The through hole 601 opened at the bottom of the top plate 6 is sleeved with the screw rod 806 and allows for engaged sliding. This design ensures the stability and uniformity of the top plate during the pressing process, and also facilitates adjustment and installation.

[0043] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , a tightening bolt 7 is provided above the top plate 6, and the tightening bolt 7 is screwed with the screw rod 806. The tightening bolt 7 provided above the top plate 6 is screwed with the screw rod 806 and is used to fix the position of the top plate before pressing. This design prevents the loosening of the top plate during the pressing process, ensuring the accuracy and stability of the test.

[0044] Refer toFigure 1 , Figure 2 , a pressure sensor 2 is arranged above the placement groove 101. The pressure sensor 2 is engaged and slidable with the placement groove 101. A stress surface 201 is arranged at the top of the pressure sensor 2. A transmission line 202 is arranged on one side of the stress surface 201. A first insulating sheet 3 is arranged above the stress surface 201, and the first insulating sheet 3 is sleeved with the pressure sensor 2. A limiting groove 301 is formed at the top of the first insulating sheet 3. The pressure sensor 2 arranged above the placement groove 101 can monitor the pressure change during the pressurization process in real time and transmit the data through the transmission line 202, which improves the accuracy and controllability of the test. At the same time, the first insulating sheet 3 provides additional insulation protection.

[0045] Refer to Figure 1 , Figure 2 , a ceramic battery tube 4 is arranged above the limiting groove 301. The limiting groove 301 is used to place the ceramic battery tube 4. A second insulating sheet 5 is arranged above the ceramic battery tube 4. The design of the limiting groove 301 is used to accurately place the ceramic battery tube 4 to ensure its stable position during the pressurization process, which improves the reliability of the test and prevents the movement or damage of the battery tube during the pressurization process.

[0046] Refer to Figure 1 , Figure 2 , the second insulating sheet 5 is sleeved with the ceramic battery tube 4, and the top plate 6 abuts against the second insulating sheet 5. The second insulating sheet 5 is sleeved with the ceramic battery tube 4, providing an additional insulating layer, which protects the battery tube from damage during the pressurization process and also prevents the risk of electrical short circuit or electric shock.

[0047] Refer to Figure 1 , Figure 2 , a counter pressure surface 602 is formed at the center of the top of the top plate 6. The counter pressure surface 602 is used to abut against an external pressure device. The counter pressure surface 602 formed at the center of the top of the top plate 6 is used to abut against an external pressure device. This design ensures the stability and uniformity of the pressurization process, improves the accuracy and repeatability of the test, and at the same time, it is also convenient for the connection and fixation with external devices.

[0048] The implementation principle of the present utility model is as follows: First, it is necessary to ensure that all components of the mold are intact, without damage or missing. Place the mold on a stable workbench to ensure that the base 1 is stable and immovable;

[0049] Subsequently, sleeve the first insulating sheet 3 on the pressure sensor 2, place the ceramic battery tube 4 in the limiting groove 301 to ensure that the battery tube is vertical and stable, sleeve the second insulating sheet 5 on the ceramic battery tube 4, and prepare for pressurization;

[0050] According to the model of the ceramic battery tube 4, the height of the screw 806 is adjusted through the adjustment hole 807, and the height of the three adjustment connecting rods 8 is ensured to be uniform by using the ruler 805 and the marking sheet 809, and the screw 806 is rotated to make the top plate 6 gradually approach the ceramic battery tube 4;

[0051] After adjusting the height, use a special tool to insert into the adjustment hole 807 to ensure that the screw 806 does not rotate, tighten the bolt 7, firmly connect the top plate 6 and the screw 806, ensure that the mold is stable during the pressurization process, and abut the mortgage surface of the external pressure equipment with the mortgage surface 602 of the top plate 6. Start the external pressure equipment, apply pressure to the ceramic battery tube 4, observe the reading of the pressure sensor 2, and record the data during the pressurization process.

[0052] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0053] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A solid-state battery pressurized mold, characterized in that: It comprises a base (1), a placement groove (101) is provided in the middle of the top of the base (1), three thread grooves (102) are provided on the outside of the placement groove (101), and an adjustment connecting rod (8) is provided above the thread groove (102); The adjusting connecting rod (8) comprises a sleeve rod (801), a stop block (802) is arranged at the bottom of the sleeve rod (801), a mounting thread block (803) is arranged at the bottom of the stop block (802), the mounting thread block (803) is threadedly connected to the thread groove (102), and the stop block (802) is in contact with the base (1); A threaded sleeve groove (804) is provided at the top of the sleeve rod (801), and a screw rod (806) is connected to the internal thread of the threaded sleeve groove (804). A marking sheet (809) is provided at the bottom of the screw rod (806), and an adjustment hole (807) is provided at the top of the screw rod (806). The adjustment hole (807) is used to adjust the height of the screw rod (806).

2. The solid-state battery pressurizing mold according to claim 1, characterized in that: The outer surface of the sleeve rod (801) is provided with a visual port (808), a ruler (805) is provided on one side of the visual port (808), and the visual port (808) is used to observe the marking sheet (809).

3. The solid-state battery pressurizing mold according to claim 1, characterized in that: Three adjusting connecting rods (8) are provided, and the three adjusting connecting rods (8) are at the same height level through the ruler (805) and the marking sheet (809).

4. The solid-state battery pressurizing mold according to claim 3, characterized in that: The three adjusting connecting rods (8) are used to adapt to ceramic battery tubes (4) of different models after adjustment, and a top plate (6) is arranged above the screw rod (806).

5. The solid-state battery pressurizing mold according to claim 4, characterized in that: A through hole (601) is provided at the bottom of the top plate (6), and the through hole (601) is sleeved with the screw rod (806), and the through hole (601) and the screw rod (806) are engaged and slidably moved.

6. The solid-state battery pressurizing mold according to claim 4, characterized in that: A tightening bolt (7) is provided above the top plate (6), and the tightening bolt (7) is threadedly connected to the screw rod (806).

7. The solid-state battery pressurizing mold according to claim 4, characterized in that: A pressure sensor (2) is arranged above the placement groove (101), the pressure sensor (2) and the placement groove (101) are engaged and slidably moved, a force-bearing surface (201) is arranged on the top of the pressure sensor (2), a transmission line (202) is arranged on one side of the force-bearing surface (201), a first insulating sleeve (3) is arranged above the force-bearing surface (201), and the first insulating sleeve (3) is sleeved with the pressure sensor (2), and a limiting groove (301) is provided on the top of the first insulating sleeve (3).

8. The solid-state battery pressurizing mold according to claim 7, characterized in that: A ceramic battery tube (4) is arranged above the limiting groove (301), the limiting groove (301) is used to place the ceramic battery tube (4), and a second insulating sleeve (5) is arranged above the ceramic battery tube (4).

9. The solid-state battery pressurizing mold according to claim 8, characterized in that: The second insulating sleeve (5) is sleeved with the ceramic battery tube (4), and the top plate (6) is in contact with the second insulating sleeve (5).

10. The solid-state battery pressurizing mold according to claim 4, characterized in that: A mortgage surface (602) is provided at the center of the top of the top plate (6), and the mortgage surface (602) is used to abut against an external pressure device.

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