Solid-state battery pressurization testing device and system

Abstract

The invention relates to a solid-state battery pressurization test device and system. The device comprises a sealing box and a pressurization test module, the sealing box is used as a water-free oxygen environment for the pressurization test of the to-be-tested battery; operation gloves are arranged on the sealing box and are used for assembling a to-be-tested battery in the sealing box; the pressurization test module is arranged in the sealing box and comprises a shell, a clamp assembly, a pressurization assembly and a positioning assembly; the clamp assembly is used for fixing the assembled to-be-tested battery; the pressurizing assembly is arranged on the shell and is used for applying preset pressure to the to-be-tested battery on the clamp assembly; and the positioning assembly is used for positioning the to-be-tested battery on the clamp assembly and butting the to-be-tested battery with the pressurizing assembly. In the embodiment of the invention, the whole process of the battery pressurization test is completed by controlling each component by the control module in the sealing box, the sealing problem does not need to be considered, the material for sealing the battery and the time for sealing the battery are saved, and the battery test efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a solid-state battery pressurization testing device and system. Background Art

[0002] In the development process of all-solid-state batteries, the basic work of exploring the characteristics of battery materials is through the preparation and testing of principle batteries, and the principle battery test fixture is an indispensable device.

[0003] The core material of all-solid-state batteries, solid electrolytes, are sensitive to water and oxygen, and are prone to chemical reactions upon contact. The preparation and evaluation of existing all-solid-state principle batteries are mostly done by processing and molding the batteries in a glove box with an inert gas atmosphere, and then transferring them to a regular air atmosphere for pressurized testing after sealing. After the test is completed, the principle batteries need to be transferred back to the glove box for disassembly. The entire process requires opening the hatch and cleaning it multiple times, which is time-consuming and labor-intensive, and there are uncontrollable factors such as sealing failure, which causes the battery characteristics to be affected by environmental factors. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a solid-state battery pressurization testing device and system.

[0005] In a first aspect, an embodiment of the present application discloses a solid-state battery pressurization test device, including a sealed box and a pressurization test module;

[0006] The sealed box is used as a water-free oxygen environment for the pressure test of the battery to be tested; the sealed box is provided with operating gloves, which are used to assemble the battery to be tested in the sealed box;

[0007] The pressurized test module is arranged in a sealed box, including a shell, a fixture assembly, a pressurizing assembly and a positioning assembly; the fixture assembly is used to fix the assembled battery to be tested; the pressurizing assembly is arranged on the shell, and is used to apply a preset pressure to the battery to be tested on the fixture assembly; the positioning assembly is used to position the battery to be tested on the fixture assembly and dock it with the pressurizing assembly.

[0008] In some possible embodiments, the clamp assembly includes a battery sleeve, a locking bolt, a base plate, a lower pressure plate, and a plurality of support rods;

[0009] A plurality of support rods are arranged on the bottom plate; a battery sleeve is arranged between the plurality of support rods; a lower pressing plate is slidably connected to the plurality of support rods; and a locking bolt is threadedly connected to the lower pressing plate.

[0010] In some possible embodiments, a plurality of support rods are symmetrically arranged around the battery sleeve;

[0011] The clamp assembly also includes a reinforcing plate, which is arranged between the lower pressing plate and the battery sleeve, and the reinforcing plate is slidably connected to the supporting rod.

[0012] In some possible embodiments, the pressurizing assembly is disposed on the housing and includes a rotary driving member (51), a rotary connecting member and a locking head;

[0013] One end of the rotary connector is connected to the locking head, and the other end is connected to the output end of the rotary drive member, and comprises a connector, a sleeve and an elastic member;

[0014] One end of the connecting piece is connected to the output end of the rotating driving piece, and the other end is connected to the sleeve; the locking head is telescopically arranged at one end of the sleeve away from the rotating driving piece, and the elastic piece is arranged in the sleeve and located between the connecting piece and the locking head.

[0015] In some possible embodiments, the positioning assembly is disposed below the fixture assembly and includes a support frame and a moving member;

[0016] The moving member includes a first sliding member and a second sliding member; the first sliding member is arranged in the horizontal direction to drive the support frame and the clamp assembly to move in the horizontal direction; the second sliding member is arranged in the vertical direction to drive the support frame and the clamp assembly to move in the vertical direction.

[0017] In some possible embodiments, the support frame is connected to the moving member, and a positioning groove is provided on the support frame for supporting the clamp assembly;

[0018] The support frame includes a first support plate, a second support plate and a third support plate which are overlapped in sequence; the third support plate is U-shaped, and a positioning groove is formed on the surface of the third support plate and the second support plate facing the third support plate.

[0019] In some possible embodiments, the first sliding member includes a first sliding driving member, a sliding rail and a sliding block; the sliding block is slidably connected to the sliding rail and connected to the third support plate; the first sliding driving member is arranged in a horizontal direction and connected to the third support plate, and is used to drive the support frame to slide along the length direction of the sliding rail;

[0020] The second sliding member includes a second sliding drive member and a guide rod; the guide rod is arranged in the vertical direction on the surface of the third support plate facing the first support plate, and the second support plate and the third support plate pass through the guide rod and are slidably connected with the guide rod; the second sliding drive member is connected to the second support plate, and is used to drive the second support plate and the third support plate to slide along the length direction of the guide rod.

[0021] In some possible embodiments, the housing includes a top plate, a base, and two side plates connecting the top plate and the base;

[0022] Side limit blocks are arranged on the opposite surfaces of the two side plates, and the side limit blocks are used to limit the sliding height of the support frame; a rear limit block is arranged on the base, and the rear limit block is used to limit the sliding position of the support frame.

[0023] In some possible embodiments, a control module and an input module are also included;

[0024] The control module is arranged in the sealed box; the control module is in communication connection with the pressurized test module, and is used to send a control signal to the pressurized test module to control the pressurized test module to test the battery to be tested;

[0025] The input module is arranged outside the sealed box, and the input module includes an input button and a display screen; the input button is communicatively connected to the control module, and is used to receive the operation instructions input by the operator and output them to the central control module; the display screen is communicatively connected to the control module, and is used to respond to the control signal of the control module and display the operating status of the solid-state battery pressurization testing device.

[0026] In a second aspect, an embodiment of the present application discloses a solid-state battery pressurization testing system, comprising any of the solid-state battery pressurization testing devices described above.

[0027] In a third aspect, an embodiment of the present application discloses a testing method, which is applied to any of the above-mentioned solid-state battery pressurization testing systems, including:

[0028] Assemble the battery and the fixture into a battery fixture assembly in an environment free of water and oxygen; the battery fixture assembly is used to perform charge and discharge tests on the battery;

[0029] Install the battery clamp assembly on the solid-state battery pressurization test device, and input a preset torque and a start command; the preset torque is used to apply a preset pressure to the battery clamp assembly;

[0030] The battery fixture assembly is charged and discharged in a water-free oxygen environment.

[0031] The technical solution provided by the embodiment of the present application has the following technical effects:

[0032] The solid-state battery pressurization test device of the embodiment of the present application includes a sealed box and a pressurization test module; the sealed box is used as an anhydrous oxygen environment for the pressurization test of the battery to be tested; the sealed box is provided with operating gloves, and the operating gloves are used to assemble the battery to be tested in the sealed box; the pressurization test module is arranged in the sealed box, including a housing, a fixture assembly, a pressurization assembly and a positioning assembly; the fixture assembly is used to fix the assembled battery to be tested; the pressurization assembly is arranged on the housing, and is used to apply a preset pressure to the battery to be tested on the fixture assembly; the positioning assembly is used to position the battery to be tested on the fixture assembly, and dock it with the pressurization assembly. The whole process is achieved by the cooperation of each component to realize the positioning and pressurization of the battery, and improve the data accuracy and operation accuracy of the pressurization; further, the assembly, pressurization and testing process of the battery can be completed in the closed environment in the sealed box, without considering the sealing problem of the battery after assembly, saving the material and time of the sealed battery, and improving the efficiency of the battery test. Since there is no need to repeatedly transfer the battery, there is no need to open and close the closed environment many times, which ensures the anhydrous oxygen participation in the battery pressurization process, thereby ensuring the effect of the battery test. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of a solid-state battery pressure test device provided in an embodiment of the present application Figure 1 ;

[0035] Figure 2 A schematic diagram of a solid-state battery pressure test device provided in an embodiment of the present application Figure 2 ;

[0036] Figure 3 is a schematic diagram of a rotating connection provided in an embodiment of the present application;

[0037] Figure 4 It is a partial schematic diagram of a solid-state battery pressurization testing device provided in an embodiment of the present application;

[0038] Figure 5 is a schematic diagram of an input module provided in an embodiment of the present application;

[0039] Figure 6 It is a flow chart of a testing method provided in an embodiment of the present application. Description of the drawings:

[0041] 1. Input module; 11. Input button; 12. Display screen;

[0042] 2. Sealed box;

[0043] 3. Shell; 31. Top plate; 32. Base; 33. Side plate; 34. Side limit block; 35. Rear limit block;

[0044] 4. Clamp assembly; 41. Battery sleeve; 42. Locking bolt; 43. Bottom plate; 44. Lower pressure plate; 45. Support rod; 46. Reinforcement plate;

[0045] 5. Pressurizing assembly; 11. Rotating driving member; 12. Rotating connecting member; 521. Connecting member; 522. Sleeve; 523. Elastic member; 53. Locking head;

[0046] 6. Positioning assembly; 61. Support frame; 62. First sliding member; 621. First sliding drive member; 622. Slide rail; 623. Sliding block; 63. Second sliding member; 631. Second sliding drive member; 632. Guide rod. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] It should be noted that the "one embodiment" or "embodiment" referred to in the specification of the embodiment of the present application refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present application. It should be understood that in the specification and claims of the embodiment of the present application and the above-mentioned drawings, the orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, in the description of the present embodiment, unless otherwise specified, "plurality" means two or more. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system or product including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] It should be understood that when a device or component is referred to as "on ...", "adjacent to ...", "connected to" other devices or components, it can be directly on, adjacent to, connected to other devices or components, or there can be intervening devices or components. On the contrary, when a device or component is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" other devices or components, there is no intervening device or component. It should be understood that although the terms first, second, third, etc. can be used to describe various components, areas, layers and / or parts, these components, areas, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one component, area, layer or part from another component, area, layer or part. Therefore, without departing from the teachings of the present application, the first component, area, layer or part discussed below can be expressed as the second component, area, layer or part. And when the second component, area, layer or part is discussed, it does not mean that the present application necessarily has the first component, area, layer or part.

[0050] In order to make the purpose, technical solution and advantages disclosed in the embodiments of the present application more clearly understood, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present application and are not used to limit the embodiments of the present application.

[0051] Before introducing the method embodiments provided in the present application, a brief introduction is first given to the relevant terms or nouns that may be involved in the method embodiments of the present application to facilitate understanding by technicians in the field of the present application.

[0052] Primary battery: A primary battery is a non-rechargeable battery, also known as a disposable battery. They convert chemical energy directly into electrical energy through an irreversible chemical reaction. When the chemical reaction in the battery is completed, the battery is exhausted and cannot be recharged again. Primary batteries are widely used in some low-power, long-life devices, such as remote controls, watches, sensors, etc. In these applications, the weight, volume, and cost of the battery are usually important considerations. Common primary batteries include alkaline batteries (AA, AAA batteries), zinc-carbon batteries, lithium primary batteries, etc.

[0053] Glove box: A glove box is a closed container usually used for operating materials or chemicals that need to be isolated. The characteristic of the glove box is that gloves are installed on the outside of the box, and the operator can operate inside the box with these gloves without directly contacting the substances inside the box. Glove boxes are widely used in situations where it is necessary to protect operators or prevent materials from contacting the external environment, such as chemical experiments, semiconductor manufacturing, lithium battery assembly, etc. For battery testing, the glove box can provide an inert gas environment (such as nitrogen or argon) to prevent battery materials from reacting with moisture or oxygen in the air, thereby avoiding safety risks and material degradation. Glove boxes can be divided into inert gas glove boxes, vacuum glove boxes, etc. The specific choice depends on the needs of the operation and the characteristics of the material.

[0054] Battery clamp: A device used to fix batteries or battery packs for testing, assembly or other operations. It ensures that the battery remains stable during operation and can accurately apply the required pressure or torque. Battery clamps are widely used in charge and discharge tests, environmental tests, mechanical performance tests, etc. Through the battery clamp, the test equipment can apply uniform pressure to the battery and ensure that the battery does not shift during the test, thereby ensuring the accuracy and consistency of the test results. Battery clamps are usually customized according to the shape and size of the battery, and the materials are mostly metal or insulating materials to ensure that the clamp does not cause electrical interference or mechanical damage to the battery while applying force.

[0055] An embodiment of the present application provides a solid-state battery pressurization testing device. Figure 1A schematic diagram of a solid-state battery pressure test device provided in an embodiment of the present application Figure 1 ,like Figure 1 As shown, the solid-state battery pressurized test device includes a control module, a pressurized test module, an input module 1 and a sealed box 2, wherein the control module and the pressurized test module are arranged in the sealed box 2; the input module 1 is arranged outside the sealed box 2, and is communicated with the control module for receiving operation instructions input by an operator and sending input signals to the control module; the control module is communicated with the pressurized test module for sending control signals to the pressurized test module to control the pressurized test module to test the battery to be tested.

[0056] The pressurized test module includes a housing 3, a fixture assembly 4, a pressurizing assembly 5, and a positioning assembly 6. The fixture assembly 4, the pressurizing assembly 5, and the positioning assembly 6 are all arranged on the housing 3, the fixture assembly 4 is used to fix the battery to be tested, the pressurizing assembly 5 is used to pressurize the battery to be tested in response to a control signal, and the positioning assembly 6 is used to position the battery to be tested. The positioning assembly 6 includes a support frame 61 and a moving part, the support frame 61 is connected to the moving part, and the moving part is used to move the fixture assembly 4 in response to the control signal.

[0057] Through the above technical solution, the fixture component 4 is placed on the positioning component 6, and the positioning component 6 moves the fixture to a position aligned with the pressurizing component 5, and the pressurizing component 5 pressurizes the fixture. The control module controls each component to realize the positioning and pressurization of the battery in the whole process, without manual participation, improving the data accuracy and operation accuracy of pressurization; further, the assembly, pressurization and testing process of the battery can be completed in a closed environment without considering the sealing problem, saving the materials and time of sealing the battery, and improving the efficiency of battery testing. Since there is no need to repeatedly transfer the battery, there is no need to open and close the closed environment multiple times, ensuring the absence of water and oxygen in the battery pressurization process, thereby ensuring the effect of battery testing.

[0058] Figure 2 A schematic diagram of a solid-state battery pressure test device provided in an embodiment of the present application Figure 2 ,like Figure 2 As shown, the housing includes a top plate 31, a base 32, and two side plates 33 connecting the top plate 31 and the base 32. The top plate 31, the base 32, and the side plates 33 are detachably connected by bolts. In the embodiment of the present application, the two side plates 33 are L-shaped, narrow at the top and wide at the bottom. The wider lower part can stably support the positioning assembly 6, and the narrower upper part can avoid blocking the line of sight, making it more convenient for the operator to operate in the glove box, and can save materials on the other hand, realizing a lightweight design of the solid-state battery pressurization test device.

[0059] like Figure 1As shown, the pressurizing assembly 5 includes a rotary driving member 11, a rotary connecting member 12 and a locking head 53. One end of the rotary connecting member 12 is connected to the locking head 53, and the other end is connected to the output end of the rotary driving member 11, so as to transmit the rotary motion of the rotary driving member 11 to the locking head 53, and the locking head 53 is used to apply pressure to the battery to be tested by rotating.

[0060] In an embodiment of the present application, the rotary drive member 11 can be specifically configured as a reduction motor. Through the above arrangement, compared with the direct downward pressing method, the rotary driving member 11 can provide more precise pressure control, and the rotary motion can be precisely adjusted. Through the reduction ratio of the reduction motor, small angle fine-tuning can be achieved, thereby finely controlling the pressure applied to the battery. Furthermore, the rotary pressure can gradually increase the pressure, avoiding the instantaneous impact force that may be generated during direct downward pressure. The slow rotation of the reduction motor can gradually increase the pressure, thereby protecting the battery to be tested and related components and extending their service life.

[0061] Figure 3 is a schematic diagram of a rotating connector provided in an embodiment of the present application. In a possible embodiment, as Figure 3 As shown, the rotary connector 12 includes a connector 521, a sleeve 522 and an elastic member 523. One end of the connector 521 is connected to the output end of the rotary drive member 11, and the other end is connected to the sleeve 522. The locking head 53 is telescopically arranged at one end of the sleeve 522 away from the rotary drive member 11, and the elastic member 523 is arranged in the sleeve 522 and is located between the connector 521 and the locking head 53.

[0062] In the embodiment of the present application, the elastic member 523 is specifically configured as a spring, and the shape of the locking head 53 is configured as a hexagonal shape, which is convenient for matching with a hexagonal bolt.

[0063] Through the above arrangement, the spring serves as an elastic member 523, and cooperates with the locking head 53 to form an elastic mechanism. If the positioning mechanism fails to completely move the battery to be tested to the bottom of the locking head 53, or the hexagonal locking head 53 and the hexagonal bolt are misaligned, the elastic mechanism can enable the locking head 53 to smoothly enter the locking bolt below after the rotating drive member 11 starts to rotate; on the other hand, the spring can provide a certain buffering and adjustment function during the process of applying pressure. When the locking head 53 contacts the bolt, the spring will store energy due to compression, ensuring that the locking head 53 can apply uniform and appropriate pressure to avoid over-tightening or insufficient pressure.

[0064] Continue as Figure 2 As shown, in a possible embodiment, the clamp assembly includes a battery sleeve 41 , a locking bolt 42 , a bottom plate 43 , a lower pressing plate 44 and a plurality of support rods 45 .

[0065] Optionally, a plurality of support rods 45 are arranged on the bottom plate 43 perpendicularly to the bottom plate 43, each support rod 45 is composed of a bolt connected to the bottom plate 43 and a cylinder sleeved on the bolt, and the support rod 45 provides a guide for the downward pressing direction of the lower pressing plate 44. The battery sleeve 41 is arranged between the plurality of support rods 45, and one end is connected to the bottom plate 43, and the other end is connected to the lower pressing plate 44. The lower pressing plate 44 is sleeved on the plurality of support rods 45, and the locking bolt 42 is threadedly connected to the lower pressing plate 44.

[0066] Through the above-mentioned arrangement, when the locking bolt 42 is driven to rotate by the locking head 53, since the locking bolt 42 is threadedly connected to the lower pressure plate 44, the lower pressure plate 44 moves up and down along the length direction of the support rod 45. In the embodiment of the present application, when the locking bolt 42 rotates clockwise, the lower pressure plate 44 moves downward, exerting downward pressure on the battery to be tested in the battery sleeve 41.

[0067] In a possible embodiment, the clamp assembly includes four support rods 45, and the four support rods 45 are symmetrically arranged on the outside of the battery sleeve 41. The four symmetrically arranged support rods 45 ensure that the lower pressing plate 44 remains horizontal during the pressing process, thereby ensuring that the pressure applied to the battery to be tested is uniform, avoiding damage to the battery to be tested or errors in the test results that may be caused by uneven pressure distribution.

[0068] In order to prevent the support rod 45 from being deformed, the clamp assembly 4 further includes a reinforcing plate 46, which is arranged between the lower pressing plate 44 and the battery sleeve 41, and is slidably sleeved on two diagonally located support rods 45. Through the above arrangement, the reinforcing plate 46 is added between the lower pressing plate 44 and the battery sleeve 41, and is slidably sleeved on the two diagonally located support rods 45, which can effectively enhance the stability of the support rod 45, prevent the support rod 45 from bending or deforming when a large pressure is applied, and further improve the durability and reliability of the entire clamp assembly 4.

[0069] Figure 4 6 is a partial schematic diagram of a solid-state battery pressurization test device provided in an embodiment of the present application. In a possible embodiment, the support frame 61 includes a first support plate, a second support plate, and a third support plate which are overlapped from top to bottom. The third support plate is U-shaped, and the third support plate and the second support plate form a positioning groove.

[0070] When the operator places the battery clamp, the assembled clamp component 4 can be placed in the positioning groove. The U-shaped positioning groove can limit the back, left and right sides of the clamp component 4 to prevent the clamp component 4 from deforming or shaking during the pressurization process.

[0071] In order to move the clamp to below the pressurizing assembly, in a possible embodiment, the moving member includes a first sliding member 62 and a second sliding member 63 .

[0072] The first sliding member 62 is arranged in the horizontal direction, and is used to drive the support frame 61 and the clamp assembly 4 to move in the horizontal direction; the second sliding member 63 is arranged in the vertical direction, and is used to drive the support frame 61 and the clamp assembly 4 to move in the vertical direction. Through the limitation of the positioning groove and the movement of two degrees of freedom in the horizontal and vertical directions, the clamp assembly 4 can be accurately moved to the right below the pressurizing assembly 5, so that the locking head 53 is aligned with the locking bolt 42.

[0073] like Figure 4 As shown, in a possible embodiment, the first sliding member includes a first sliding driving member 621, a slide rail 622 and a slider 623. Two slide rails 622 are arranged in parallel, and two sliders 623 are also arranged accordingly. The two sliders 623 are respectively slidably connected to the two slide rails 622 and connected to the third support plate. The first sliding driving member 621 is arranged in the horizontal direction and connected to the third support plate, and is used to drive the support frame 61 to slide along the length direction of the slide rail 622.

[0074] Specifically, the first sliding driving member 621 is configured as a push-pull cylinder that is communicatively connected to the control module, and drives the support frame 61 to slide in the horizontal direction based on a control signal sent by the control module.

[0075] In a possible embodiment, the second sliding member 63 includes a second sliding driving member 631 and a guide rod 632. Four guide rods 632 are arranged in parallel, and the four guide rods 632 are all arranged on the surface of the third support plate facing the first support plate in the vertical direction. The second support plate and the third support plate pass through the guide rods 632 and are slidably connected to the guide rods 632. The second sliding driving member 631 is connected to the second support plate, and is used to drive the second support plate and the third support plate to slide along the length direction of the guide rods 632.

[0076] Specifically, the first sliding driving member 621 is configured as a lifting cylinder that is communicatively connected to the control module, and drives the second support plate and the third support plate to slide in the vertical direction based on a control signal sent by the control module.

[0077] Through the above arrangement, the clamp assembly can be accurately and automatically moved to the position directly below the pressurizing assembly so that the locking head 53 is aligned with the locking bolt 42 .

[0078] Continue as Figure 2 As shown, side limit blocks 54 are provided on the opposite surfaces of the two side plates 53 , and the side limit blocks 54 are used to limit the sliding height of the support frame 61 to avoid collision between the clamp assembly 4 and the pressurizing assembly 5 .

[0079] Similarly, a rear limit block 35 is provided on the base 12, and the rear limit block 35 is used to limit the sliding position of the support frame 61 to ensure that the clamp assembly 4 is accurately moved to the set position.

[0080] Figure 5 It is a schematic diagram of an input module provided in an embodiment of the present application. In a possible embodiment, the solid-state battery pressurization test device is arranged in a sealed box 2; the input module 1 is arranged outside the sealed box 2, and is communicated with the control module to receive the operation instructions input by the operator and send input signals to the control module.

[0081] Through the above-mentioned arrangement, the operator can input operation instructions through the input module 1 outside the sealed box 2, and the control module controls the various components of the solid-state battery pressurization testing device to realize the positioning and pressurization of the battery. There is no need for manual operation with a hand-held wrench in the glove box, thereby improving the data accuracy and operation accuracy of the pressurization; further, the battery assembly and pressurization processes can be completed in the closed environment of the sealed box 2, without considering the sealing problem, saving the material and time of sealing the battery, and improving the efficiency of the battery test. Since there is no need to repeatedly transfer the battery, there is no need to open and close the closed environment multiple times, which ensures the absence of water and oxygen in the battery pressurization process, thereby ensuring the effect of the battery test.

[0082] In some optional embodiments, such as Figure 5 As shown, the input module 1 includes input keys 11 and a display screen 12 .

[0083] The input button 11 is connected to the control module for receiving the operation command input by the operator and outputting it to the central control module. The display screen 12 is connected to the control module for responding to the control signal of the control module and displaying the operating status of the battery pressurization solid-state battery pressurization test device. Specifically, the real-time torque of the rotating drive member 11 can be displayed to facilitate the operator to perform pressurization testing.

[0084] Optional, continue as Figure 4 As shown, the input key 11 includes two parts, one part is a manual mode key, which can control the extension and retraction of the push-pull cylinder, the rise and fall of the lifting cylinder, and the start and stop of the rotating drive member 11 (locking motor). The other part is an automatic mode key, including a start key and a stop key.

[0085] Corresponding to the above two parts of input buttons 11, the solid-state battery pressurization test system of the present application is also divided into manual mode and automatic mode.

[0086] In a possible embodiment, the operation steps of the automatic mode include:

[0087] (1) Set the torque required for the battery to be tested according to the required pressure;

[0088] (2) After the battery to be tested is assembled with the fixture and is ready to be locked and pressurized, it is placed in the positioning groove and positioned;

[0089] (3) Press the start button of the automatic mode on the input panel, and the solid-state battery pressurization test device completes the entire locking and pressurization process according to the set program;

[0090] (4) Take out the clamp that has been pressurized and repeat steps (2) and (3) to lock the next clamp.

[0091] In a possible embodiment, the operation steps of the manual mode include:

[0092] (1) Set the torque required for the battery to be tested according to the required pressure;

[0093] (2) After the battery to be tested is assembled with the fixture and is ready to be locked and pressurized, it is placed in the positioning groove and positioned;

[0094] (3) Press the manual mode button on the input panel to operate the push-pull cylinder to push forward, driving the clamp assembly 4 to the locking position;

[0095] (4) Press the manual mode button on the input panel to operate the lifting cylinder to raise the clamp assembly 4 so that the locking head 53 enters the locking bolt 42;

[0096] (5) Press the manual mode button on the input panel to start the rotating drive member 11, pressurize the battery to be tested to a set torque, and the rotating drive member 11 automatically stops;

[0097] (6) Press the manual mode button on the input panel to sequentially operate the lifting cylinder to descend and the telescopic cylinder to retract, so that the clamp assembly 4 is pushed out to the starting position;

[0098] (7) Take out the clamp assembly 4 after pressurization, and repeat steps (2) to (6) to perform the locking operation of the next clamp.

[0099] By setting up two modes, automatic and manual, the solid-state battery pressurization test system is more flexible and efficient in operation. The automatic mode is suitable for standardized, large-scale production processes and can significantly improve production efficiency, especially when batch processing is required, reducing operation time and labor intensity.

[0100] The manual mode allows operators to precisely control each step, providing flexibility and control over details, and can cope with special situations, equipment debugging, and operation training needs. In particular, when encountering special situations or abnormalities that the automatic mode cannot handle, the manual mode can be used as a backup to ensure that production can continue when the automatic mode fails, reducing downtime. The dual-mode design of this application not only improves the applicability of the equipment, but also improves the reliability and safety of the overall production process.

[0101] In the embodiment of the present application, ten to twenty batteries to be tested can be set in the sealed box 2 at one time, and the preset torque of the batch of batteries is also the same, for example, all are 30 Nm, which can significantly reduce the frequency of single operation and greatly improve the efficiency of the production line. Furthermore, since the preset torque of all batteries to be tested is the same, the parameter setting during the operation only needs to be performed once, reducing the errors that may be caused by frequent parameter adjustments. Testing and pressurizing a batch of batteries under the same sealed environment ensures that the environmental conditions and operating forces to which each battery is subjected are consistent, which can better ensure the reliability and comparability of the test results.

[0102] The embodiment of the present application also provides a solid-state battery pressurization testing system, which includes the above-mentioned solid-state battery pressurization testing device; it can also include a solid-state battery assembly device. Since the solid-state battery assembly device and the solid-state battery pressurization testing device are both arranged in a sealed box 2, the battery assembly, pressurization and testing processes can be completed in a closed environment without considering the sealing problem, saving materials for sealing the battery and time for sealing the battery, and improving the efficiency of battery testing. Since there is no need to repeatedly transfer the battery, there is no need to open and close the closed environment multiple times, which ensures that there is no water and oxygen involved in the battery pressurization process, thereby ensuring the effect of the battery test.

[0103] The following is a specific embodiment of a testing method of the present application. Figure 5 It is a flow chart of a test method provided in an embodiment of the present application. This specification provides method operation steps such as the embodiment or flow chart, but may include more or fewer operation steps based on conventional or non-creative labor. The order of steps listed in the embodiment is only one way of executing the order of many steps and does not represent the only execution order. When the actual system or server product is executed, it can be executed in sequence or in parallel according to the method shown in the embodiment or the accompanying drawings (for example, a parallel processor or a multi-threaded processing environment). The test method is applied to the above-mentioned solid-state battery pressurization test system, and the test method includes:

[0104] S101: Assemble the battery and the fixture into a battery fixture assembly in a water-free and oxygen-free environment; the battery fixture assembly is used to perform charge and discharge tests on the battery.

[0105] S102: Install the battery clamp assembly on the battery pressurization solid-state battery pressurization test device, and input a preset torque and a start command; the preset torque is used to apply a preset pressure to the battery clamp assembly.

[0106] S103: Perform charge and discharge tests on the battery fixture assembly in a water-free and oxygen-free environment.

[0107] The anhydrous oxygen environment is the above-mentioned sealed box. The battery clamp assembly is installed on the battery pressurization solid-state battery pressurization test device. After the preset torque and start command are input, the solid-state battery pressurization test device pressurizes and locks the battery clamp assembly. After the battery clamp assemblies in this batch are pressurized and locked, the battery clamp assembly can still be subjected to subsequent charge and discharge tests in the anhydrous oxygen environment without repeatedly opening and closing the sealed box and transferring the battery clamp assembly.

[0108] In a possible embodiment, a battery preparation step is also included before step S101. Specifically, the preparation step includes: placing the material to be formed into a battery compartment, applying pressure to the upper electrode mold, pressing the upper electrode mold and the lower electrode mold relative to each other to extrude the material to be formed, and forming a positive electrode mixture layer, an electrolyte layer and a negative electrode mixture layer in the first electrode cavity, the electrolyte cavity and the second electrode cavity to obtain a finished battery.

[0109] In a possible embodiment, after step S103, a battery charge and discharge test step is also included. Specifically, the test step includes: charging the battery with a set current in an oxygen-free environment, charging the battery with a set current, and recording the charge and discharge data, and analyzing the battery performance according to the test results.

[0110] Through the above steps, the control module controls each component in the entire process to achieve battery positioning and pressurization, without human intervention, thereby improving the data accuracy and operation accuracy of pressurization; further, the battery assembly, pressurization and testing processes can be completed in a closed environment without considering the sealing problem, saving materials and time for sealing batteries, and improving the efficiency of battery testing. Since there is no need to repeatedly transfer the battery, there is no need to open and close the closed environment multiple times, which ensures the absence of water and oxygen in the battery pressurization process, thereby ensuring the effect of the battery test.

[0111] It should be noted that the above-mentioned sequence of the embodiments of the present application is for description only and does not represent the advantages and disadvantages of the embodiments. The above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0112] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0113] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0114] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A solid-state battery pressure test device, characterized in that: It comprises a sealing box (2) and a pressurized test module; The sealed box is used as an anhydrous oxygen environment for the pressure test of the battery to be tested; the sealed box is provided with operating gloves, and the operating gloves are used to assemble the battery to be tested in the sealed box; The pressurized test module is arranged in the sealed box, and comprises a housing (3), a clamp assembly (4), a pressurizing assembly (5) and a positioning assembly (6); the clamp assembly (4) is used to fix the assembled battery to be tested; the pressurizing assembly (5) is arranged on the housing (3) and is used to apply a preset pressure to the battery to be tested on the clamp assembly (4); the positioning assembly (6) is used to position the battery to be tested on the clamp assembly (4) and dock it with the pressurizing assembly (5).

2. The solid-state battery pressure testing device according to claim 1, characterized in that: The clamp assembly (4) comprises a battery sleeve (41), a locking bolt (42), a bottom plate (43), a lower pressing plate (44) and a plurality of support rods (45); The multiple support rods (45) are arranged on the base plate (43); the battery sleeve (41) is arranged between the multiple support rods (45), the lower pressure plate (44) is slidably connected to the multiple support rods (45), and the locking bolt (42) is threadedly connected to the lower pressure plate (44).

3. The solid-state battery pressure testing device according to claim 2, characterized in that: The plurality of support rods (45) are symmetrically arranged around the battery sleeve (41); The clamp assembly (4) further comprises a reinforcing plate (46), wherein the reinforcing plate (46) is arranged between the lower pressing plate (44) and the battery sleeve (41), and the reinforcing plate (46) is slidably connected to the support rod (45).

4. The solid-state battery pressure testing device according to claim 1, characterized in that: The pressurizing assembly (5) is arranged on the housing (3), and comprises a rotary driving member (51), a rotary connecting member (52) and a locking head (53); One end of the rotary connecting member (52) is connected to the locking head (53), and the other end is connected to the output end of the rotary driving member (11), and comprises a connecting member (521), a sleeve (522) and an elastic member (523); One end of the connecting member (521) is connected to the output end of the rotating driving member (11), and the other end is connected to the sleeve (522); the locking head (53) is telescopically arranged at one end of the sleeve (522) away from the rotating driving member (11), and the elastic member (523) is arranged in the sleeve (522) and is located between the connecting member (521) and the locking head (53).

5. The solid-state battery pressure testing device according to claim 1, characterized in that: The positioning assembly (6) is arranged below the clamp assembly (4), and comprises a support frame (61) and a moving part; The movable member comprises a first sliding member (62) and a second sliding member (63); the first sliding member (62) is arranged in a horizontal direction, and is used to drive the support frame (61) and the clamp assembly (4) to move in the horizontal direction; the second sliding member (63) is arranged in a vertical direction, and is used to drive the support frame (61) and the clamp assembly (4) to move in the vertical direction.

6. The solid-state battery pressure testing device according to claim 5, characterized in that: The support frame (61) is connected to the moving part, and a positioning groove is provided on the support frame (61) for supporting the clamp assembly (4); The support frame (61) comprises a first support plate, a second support plate and a third support plate which are arranged in sequence and overlap each other; the third support plate is U-shaped, and the third support plate and the second support plate form the positioning groove on the surface facing the third support plate.

7. The solid-state battery pressure testing device according to claim 6, characterized in that: The first sliding member (62) comprises a first sliding driving member (621), a sliding rail (622) and a sliding block (623); the sliding block (623) is slidably connected to the sliding rail (622) and is connected to the third support plate; the first sliding driving member (621) is arranged in a horizontal direction and is connected to the third support plate, and is used to drive the support frame (61) to slide along the length direction of the sliding rail (622); The second sliding member (63) includes a second sliding driving member (631) and a guide rod (632); the guide rod (632) is arranged on the surface of the third support plate facing the first support plate in the vertical direction, and the second support plate and the third support plate pass through the guide rod (632) and are slidingly connected to the guide rod (632); the second sliding driving member (631) is connected to the second support plate, and is used to drive the second support plate and the third support plate to slide along the length direction of the guide rod (632).

8. The solid-state battery pressure testing device according to claim 5, characterized in that: The housing (3) comprises a top plate (31), a base (32), and two side plates (33) connecting the top plate (31) and the base (32); Side limit blocks (34) are arranged on opposite surfaces of the two side plates (33), and the side limit blocks (34) are used to limit the sliding height of the support frame (61); and a rear limit block (35) is arranged on the base (12), and the rear limit block (35) is used to limit the sliding position of the support frame (61).

9. The solid-state battery pressure testing device according to claim 1, characterized in that: Also includes a control module and an input module (1); The control module is arranged in the sealed box (2); the control module is in communication connection with the pressurized test module and is used to send a control signal to the pressurized test module to control the pressurized test module to test the battery to be tested; The input module (1) is arranged outside the sealed box (2), and comprises an input button (11) and a display screen (12); the input button (11) is connected in communication with the control module, and is used to receive an operation instruction input by the operator and output it to the central control module; the display screen (12) is connected in communication with the control module, and is used to respond to a control signal of the control module and display an operating status of the solid-state battery pressurization test device.

10. A solid-state battery pressurization test system, characterized in that: A solid-state battery pressurization testing device comprising any one of claims 1 to 9.

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