Laboratory lithium battery high-temperature and high-pressure formation equipment

Abstract

The invention provides laboratory lithium battery high-temperature and high-pressure formation equipment which comprises a rack assembly, a pressure clamp assembly, a counterweight module assembly, an electrical assembly, an air cylinder assembly and a control panel assembly, the lithium battery high-temperature and high-pressure formation equipment has the beneficial effects that the lithium battery high-temperature and high-pressure formation equipment in the laboratory can realize lithium battery voltage and internal resistance testing in a full-automatic or semi-automatic manner, is high in efficiency and small in occupied space, integrates the pressure clamp assembly, the counterweight module assembly, the electrical assembly, the air cylinder assembly and the control panel assembly, is compact and attractive in structure, and is convenient to use. And the device has the characteristics of high integration degree, simplicity in operation, high automation, small occupied area and low labor and equipment cost.

Description

Technical Field

[0001] The invention relates to the technical field of formation equipment, and in particular to high-temperature and high-pressure formation equipment for lithium batteries in a laboratory. Background Art

[0002] The hot pressing equipment is mainly used for the production of battery cells. It mainly includes components such as hot pressing forming fixtures, layer fixtures and heating devices. The hot pressing forming fixtures have multiple layers of layers and multiple layers of aging boards, and one layer corresponds to one aging board.

[0003] In the process of pushing the aging board into the layer board, it is easy to cause the aging board to tilt and the aging board and the layer board to wear, thereby affecting its service life and the production quality of the battery cell.

[0004] Secondly, after the aging board slot is inserted into the layer board slot, the servo motor drives the fixture pressure plate to press the layer board downward. During this process, the adapter board needs to be pressed down with the aging board, rather than with the layer board. Therefore, the adapter board needs to be connected to the layer board at a certain distance. Otherwise, when the layer board is pressed down, the adapter board and the aging board will be misaligned up and down, thereby damaging the adapter board slot. In addition, when the aging board is pushed into the layer board and the adapter board is inserted, the aging board slot and the adapter board slot need to be flush with each other. Otherwise, the aging board cannot be inserted into the adapter board. When the fixture pressure plate presses the layer board downward, the adapter board needs to be in a suspended state and pressed down synchronously with the aging board.

[0005] The process flow of lithium batteries can be divided into positive electrode slurry pulling, negative electrode slurry pulling, positive electrode sheet, negative electrode sheet, steel shell assembly, liquid injection, testing, packaging, etc. In the second half of the process flow, the formation and capacity division of lithium batteries are related to whether the indicators such as battery cell consistency and yield rate can meet the requirements, and are an important part of battery cell activation detection. Because after the production of the single battery cell is completed, it is restricted by the battery production process, and the parameters in terms of capacity, voltage, current, internal resistance, etc. are not consistent. Therefore, it is necessary to form and divide the battery to maintain the consistency of the lithium battery cell. The formation of lithium batteries refers to the activation of the positive and negative electrode materials inside the battery cell by charging and discharging after the battery is filled with liquid, so as to improve the battery's self-discharge, charge and discharge performance and storage performance. Capacity division refers to the grading of battery capacity by testing battery capacity and other electrical performance parameters after the battery is manufactured. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned technical problems and to provide a new type of laboratory lithium battery high-temperature and high-pressure formation equipment. The laboratory lithium battery high-temperature and high-pressure formation equipment can fully or semi-automatically realize lithium battery voltage internal resistance testing, has high efficiency, and occupies a small space. It integrates a pressure clamp assembly, a counterweight module assembly, an electrical assembly, a cylinder assembly, and a control panel assembly into an integrated structure with a compact and beautiful structure and a high degree of integration. It has the characteristics of simple operation, high automation, small footprint, and low labor and equipment costs.

[0007] The present invention is achieved through the following technical solutions: A laboratory lithium battery high-temperature and high-pressure formation equipment comprises a frame assembly, a pressure fixture assembly, a counterweight module assembly, an electrical assembly, a cylinder assembly, and a control panel assembly, wherein a first partition plate is provided in the middle of the interior of the frame assembly, a pressure fixture assembly is provided on the first partition plate, a counterweight module assembly is provided on one side of the pressure fixture assembly, a second partition plate is provided in the lower interior of the frame assembly, an electrical assembly is provided on the second partition plate, a cylinder assembly is provided on one side of the electrical assembly, a cylinder of the cylinder assembly is connected to the pressure fixture assembly, a control panel assembly is provided on the top of the frame assembly, the electrical assembly is electrically connected to the pressure fixture assembly, the counterweight module assembly, and the cylinder assembly, respectively, and the control panel assembly is electrically connected to the pressure fixture assembly, the counterweight module assembly, the electrical assembly, and the cylinder assembly, respectively.

[0008] Further, the rack assembly includes a bottom plate, a rack, a left plate, a right plate, a rear side plate, a front side plate, a first interlayer plate, a second interlayer plate, a top plate, an electrical installation plate, and casters. The bottom of the rack is provided with a bottom plate, the lower part of the rack is provided with a second interlayer plate, the second interlayer plate is provided with an electrical installation plate, the electrical component is mounted on the electrical installation plate, the front of the rack is provided with a front side plate, the rear of the rack is provided with a rear side plate, the left side of the rack is provided with a left side plate, the right side of the rack is provided with a right side plate, the upper part of the rack is provided with a first interlayer plate, the bottom of the bottom plate is provided with a plurality of casters, the top of the rack is provided with a top plate, the top plate is provided with a control panel mounting position, and a control button through hole is provided on one side of the control panel mounting position.

[0009] Furthermore, the control panel assembly includes a control panel, a display screen, and control buttons. The control panel is installed in the control panel installation position on the top plate. The control panel is provided with a display screen. The control buttons are embedded in the control button through holes on the top plate. The display screen is electrically connected to the electrical assembly, the display screen is electrically connected to the control buttons, and the control buttons are electrically connected to the electrical assembly.

[0010] Furthermore, the pressure fixture assembly includes a pressure base plate, a gravity block base plate, a gravity block, a pressure test fixture, a pressure linear bearing, a pressure guide plate, a pressure guide rod, a lithium battery mounting plate, and a pressure sensor component. A circular hole is provided in the middle of the pressure base plate, a gravity block base plate is provided on the pressure base plate, a gravity block is provided on the gravity block base plate, one end of the pressure guide rod is connected to the four corners of the pressure base plate, the other end of the pressure guide rod passes through the pressure guide plate and is connected to the pressure sensor component, and is fixed to the gravity block base plate through a pressure linear bearing, a plurality of lithium battery mounting plates are provided above the gravity block, a lithium battery is provided on the lithium battery mounting plate, a plurality of pressure test fixtures are provided on one side of the lithium battery mounting plate, the pressure test fixture is aligned with the lithium battery on the lithium battery mounting plate for testing, and the pressure sensor component applies pressure to the lithium battery on the lithium battery mounting plate through an external drive motor.

[0011] Furthermore, the pressure sensor component includes a pressure sensing base plate, a pressure spring, a pressure spring rod, a pressure sensor top plate, and a pressure sensor. The pressure sensing top plate is installed on the top of the pressure guide rod, one end of the pressure spring rod is connected to the pressure sensing base plate, and the other end of the pressure spring rod is connected to the pressure sensor top plate. A number of pressure springs are arranged between the pressure sensing base plate and the pressure sensor top plate. The pressure spring is sleeved on the pressure spring rod, and a number of pressure sensors are arranged on the pressure sensor top plate.

[0012] Furthermore, the counterweight module assembly includes a counterweight base plate, a counterweight mounting plate, a counterweight column, a counterweight top plate, and a counterweight block. The counterweight base plate is installed at the rear end of the first compartment plate, one end of the counterweight column is connected to the counterweight base plate, and the other end of the counterweight column is connected to the counterweight top plate through the counterweight mounting plate. A fixed block is provided in the middle of the counterweight top plate, and counterweight blocks are provided at both ends of the counterweight top plate.

[0013] Furthermore, the electrical component includes an electrical side panel, an electrical base panel, an electrical relay, an electrical terminal, an electrical power supply, and an electrical network interface. The electrical base panel is installed on the second compartment panel, an electrical side panel is provided on one side of the electrical base panel, an electrical terminal is provided on the electrical base panel, an electrical network interface is provided on one side of the electrical terminal, an electrical relay is provided on the electrical side panel, an electrical power supply is provided on one side of the electrical relay, and the electrical power supply is electrically connected to the electrical relay, electrical terminal, and electrical network interface, respectively.

[0014] Furthermore, the cylinder assembly includes a cylinder, a cylinder driving motor, and a cylinder base. The cylinder base is provided with a cylinder driving motor, and a cylinder is provided on one side of the cylinder driving motor. The cylinder output shaft passes through the circular hole in the middle of the pressure bottom plate and is connected to the gravity block bottom plate. The cylinder driving motor drives the cylinder to move, and the cylinder drives the gravity block bottom plate to move. The gravity block bottom plate moves up and down on the pressure guide rod.

[0015] The beneficial effects of the present invention are that the high-temperature and high-pressure lithium battery formation equipment of the laboratory can fully or semi-automatically realize the voltage internal resistance test of the lithium battery, with high efficiency and small footprint, and integrates the pressure fixture assembly, counterweight module assembly, electrical assembly, cylinder assembly, and control panel assembly into one, with a compact and beautiful structure, a high degree of integration, and the characteristics of simple operation, high automation, small footprint, and low labor and equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the high-temperature and high-pressure lithium battery formation equipment in the laboratory of the present invention; Figure 2 This is a schematic diagram of the explosion structure of the high-temperature and high-pressure lithium battery formation equipment in the laboratory of the present invention; Figure 3 It is a schematic diagram of the structure of the rack assembly of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the frame assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the pressure clamp assembly of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the pressure clamp assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the pressure sensor components of the present invention; Figure 8 This is a schematic diagram of the explosion structure of the pressure sensor component of the present invention; Fig. 9 This is a schematic diagram of the structure of the counterweight module assembly of the present invention; Fig.10 This is a schematic diagram of the explosion structure of the counterweight module assembly of the present invention; Fig.11 It is a schematic diagram of the structure of the electrical components of the present invention; Fig.12 This is a schematic diagram of the exploded structure of the electrical component of the present invention; Fig.13 It is a schematic diagram of the structure of the cylinder assembly of the present invention; Fig.14 This is a schematic diagram of the explosion structure of the cylinder assembly of the present invention; Figure numerals: 1, rack assembly; 101, bottom plate; 101, rack; 102, left side plate; 103, right side plate; 104, rear side plate; 105, front side plate; 106, first interlayer plate; 107, second interlayer plate; 108, top plate; 109, electrical installation plate; 110, caster; 2, pressure fixture assembly; 201, pressure bottom plate; 202, gravity block bottom plate; 203, gravity block; 204, pressure test fixture; 205, pressure linear bearing; 206, pressure guide plate; 207, pressure guide rod; 208, lithium battery mounting plate; 209, pressure sensor component; 2090, pressure sensing bottom plate; 2 091. Pressure spring; 2092. Pressure spring rod; 2093. Pressure pressure sensor top plate; 2904. Pressure sensor; 3. Counterweight module assembly; 31. Counterweight bottom plate; 32. Counterweight mounting plate; 33. Counterweight column; 34. Counterweight top plate; 35. Counterweight block; 4. Electrical assembly; 41. Electrical side panel; 42. Electrical bottom plate; 43. Electrical relay; 44. Electrical terminal; 45. Electrical power supply; 46. Electrical network interface; 5. Cylinder assembly; 51. Cylinder; 52. Cylinder drive motor; 53. Cylinder base; 6. Control panel assembly; 61. Control panel; 62. Display screen; 63. Control button. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] Refer to Figure 1-Figure 14As shown, a laboratory lithium battery high-temperature and high-pressure formation equipment includes a frame assembly, a pressure fixture assembly, a counterweight module assembly, an electrical assembly, a cylinder assembly, and a control panel assembly. A first partition plate is provided in the middle of the interior of the frame assembly, a pressure fixture assembly is provided on the first partition plate, a counterweight module assembly is provided on one side of the pressure fixture assembly, a second partition plate is provided in the lower part of the interior of the frame assembly, an electrical assembly is provided on the second partition plate, a cylinder assembly is provided on one side of the electrical assembly, the cylinder of the cylinder assembly is connected to the pressure fixture assembly, a control panel assembly is provided on the top of the frame assembly, the electrical assembly is electrically connected to the pressure fixture assembly, the counterweight module assembly, and the cylinder assembly, respectively, and the control panel assembly is electrically connected to the pressure fixture assembly, the counterweight module assembly, the electrical assembly, and the cylinder assembly, respectively.

[0020] Preferably, the rack assembly includes a bottom plate, a rack, a left plate, a right plate, a rear side plate, a front side plate, a first interlayer plate, a second interlayer plate, a top plate, an electrical installation plate, and casters. The bottom of the rack is provided with a bottom plate, the lower part of the rack is provided with a second interlayer plate, the second interlayer plate is provided with an electrical installation plate, the electrical assembly is mounted on the electrical installation plate, the front of the rack is provided with a front side plate, the rear of the rack is provided with a rear side plate, the left side of the rack is provided with a left side plate, the right side of the rack is provided with a right side plate, the upper part of the rack is provided with a first interlayer plate, the bottom of the bottom plate is provided with a plurality of casters, the top of the rack is provided with a top plate, the top plate is provided with a control panel mounting position, and a control button through hole is provided on one side of the control panel mounting position.

[0021] Preferably, the control panel assembly includes a control panel, a display screen, and control buttons. The control panel is installed in the control panel installation position on the top plate. The control panel is provided with a display screen. The control buttons are embedded in the control button through holes on the top plate. The display screen is electrically connected to the electrical assembly, the display screen is electrically connected to the control buttons, and the control buttons are electrically connected to the electrical assembly.

[0022] Preferably, the pressure fixture assembly includes a pressure base plate, a gravity block base plate, a gravity block, a pressure test fixture, a pressure linear bearing, a pressure guide plate, a pressure guide rod, a lithium battery mounting plate, and a pressure sensor component. A circular hole is provided in the middle of the pressure base plate, a gravity block base plate is provided on the pressure base plate, a gravity block is provided on the gravity block base plate, one end of the pressure guide rod is connected to the four corners of the pressure base plate, the other end of the pressure guide rod passes through the pressure guide plate and is connected to the pressure sensor component, and is fixed to the gravity block base plate through a pressure linear bearing, a plurality of lithium battery mounting plates are provided above the gravity block, a lithium battery is provided on the lithium battery mounting plate, a plurality of pressure test fixtures are provided on one side of the lithium battery mounting plate, the pressure test fixture is aligned with the lithium battery on the lithium battery mounting plate for testing, and the pressure sensor component applies pressure to the lithium battery on the lithium battery mounting plate through an external drive motor.

[0023] Preferably, the pressure sensor component includes a pressure sensing base plate, a pressure spring, a pressure spring rod, a pressure sensor top plate, and a pressure sensor. The pressure sensing top plate is installed on the top of the pressure guide rod, one end of the pressure spring rod is connected to the pressure sensing base plate, and the other end of the pressure spring rod is connected to the pressure sensor top plate. A plurality of pressure springs are arranged between the pressure sensing base plate and the pressure sensor top plate. The pressure spring is sleeved on the pressure spring rod, and a plurality of pressure sensors are arranged on the pressure sensor top plate.

[0024] Preferably, the counterweight module assembly includes a counterweight base plate, a counterweight mounting plate, a counterweight column, a counterweight top plate, and a counterweight block. The counterweight base plate is installed at the rear end of the first compartment plate, one end of the counterweight column is connected to the counterweight base plate, and the other end of the counterweight column is connected to the counterweight top plate through the counterweight mounting plate. A fixed block is provided in the middle of the counterweight top plate, and counterweight blocks are provided at both ends of the counterweight top plate.

[0025] Preferably, the electrical component includes an electrical side panel, an electrical base panel, an electrical relay, an electrical terminal, an electrical power supply, and an electrical network interface. The electrical base panel is installed on the second compartment panel, an electrical side panel is provided on one side of the electrical base panel, an electrical terminal is provided on the electrical base panel, an electrical network interface is provided on one side of the electrical terminal, an electrical relay is provided on the electrical side panel, an electrical power supply is provided on one side of the electrical relay, and the electrical power supply is electrically connected to the electrical relay, electrical terminal, and electrical network interface, respectively.

[0026] Preferably, the cylinder assembly includes a cylinder, a cylinder driving motor, and a cylinder base. The cylinder base is provided with a cylinder driving motor, and one side of the cylinder driving motor is provided with a cylinder. The cylinder output shaft passes through the circular hole in the middle of the pressure bottom plate and is connected to the gravity block bottom plate. The cylinder driving motor drives the cylinder to move, and the cylinder drives the gravity block bottom plate to move. The gravity block bottom plate moves up and down on the pressure guide rod.

[0027] In summary, the laboratory's lithium battery high-temperature and high-pressure formation equipment can fully or semi-automatically realize lithium battery voltage internal resistance testing, with high efficiency and small footprint. It integrates pressure fixture components, counterweight module components, electrical components, cylinder components, and control panel components. It has a compact and beautiful structure, a high degree of integration, and is simple to operate, highly automated, occupies a small area, and has low labor and equipment costs.

[0028] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A laboratory lithium battery high temperature and high pressure formation equipment, characterized by: It includes a frame assembly, a pressure clamp assembly, a counterweight module assembly, an electrical assembly, a cylinder assembly, and a control panel assembly. A first partition plate is provided in the middle of the frame assembly, a pressure clamp assembly is provided on the first partition plate, a counterweight module assembly is provided on one side of the pressure clamp assembly, a second partition plate is provided in the lower part of the frame assembly, an electrical assembly is provided on the second partition plate, a cylinder assembly is provided on one side of the electrical assembly, a cylinder of the cylinder assembly is connected to the pressure clamp assembly, a control panel assembly is provided on the top of the frame assembly, the electrical assembly is electrically connected to the pressure clamp assembly, the counterweight module assembly, and the cylinder assembly, respectively, and the control panel assembly is electrically connected to the pressure clamp assembly, the counterweight module assembly, the electrical assembly, and the cylinder assembly, respectively.

2. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 1, characterized in that: The rack assembly includes a bottom plate, a rack, a left side plate, a right side plate, a rear side plate, a front side plate, a first interlayer plate, a second interlayer plate, a top plate, an electrical installation plate, and casters. The bottom of the rack is provided with a bottom plate, the lower part of the rack is provided with a second interlayer plate, the second interlayer plate is provided with an electrical installation plate, the electrical assembly is mounted on the electrical installation plate, the front of the rack is provided with a front side plate, the rear of the rack is provided with a rear side plate, the left side of the rack is provided with a left side plate, the right side of the rack is provided with a right side plate, the upper part of the rack is provided with a first interlayer plate, the bottom of the bottom plate is provided with a plurality of casters, the top of the rack is provided with a top plate, a control panel mounting position is provided on the top plate, and a control button through hole is provided on one side of the control panel mounting position.

3. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 2, characterized in that: The control panel assembly includes a control panel, a display screen, and control buttons. The control panel is installed in the control panel installation position on the top plate. The control panel is provided with a display screen. The control buttons are embedded in the control button through holes on the top plate. The display screen is electrically connected to the electrical assembly, the display screen is electrically connected to the control buttons, and the control buttons are electrically connected to the electrical assembly.

4. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 2, characterized in that: The pressure fixture assembly includes a pressure base plate, a gravity block base plate, a gravity block, a pressure test fixture, a pressure linear bearing, a pressure guide plate, a pressure guide rod, a lithium battery mounting plate, and a pressure sensor component. A circular hole is provided in the middle of the pressure base plate, a gravity block base plate is provided on the pressure base plate, a gravity block is provided on the gravity block base plate, one end of the pressure guide rod is connected to the four corners of the pressure base plate, and the other end of the pressure guide rod passes through the pressure guide plate and is connected to the pressure sensor component, and is fixed to the gravity block base plate through a pressure linear bearing, a plurality of lithium battery mounting plates are provided above the gravity block, a lithium battery is provided on the lithium battery mounting plate, a plurality of pressure test fixtures are provided on one side of the lithium battery mounting plate, the pressure test fixture is aligned with the lithium battery on the lithium battery mounting plate for testing, and the pressure sensor component applies pressure to the lithium battery on the lithium battery mounting plate through an external drive motor.

5. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 4, characterized in that: The pressure sensor component includes a pressure sensing base plate, a pressure spring, a pressure spring rod, a pressure sensor top plate, and a pressure sensor. The pressure sensing top plate is installed on the top of the pressure guide rod, one end of the pressure spring rod is connected to the pressure sensing base plate, and the other end of the pressure spring rod is connected to the pressure sensor top plate. A plurality of pressure springs are arranged between the pressure sensing base plate and the pressure sensor top plate. The pressure spring is sleeved on the pressure spring rod, and a plurality of pressure sensors are arranged on the pressure sensor top plate.

6. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 1, characterized in that: The counterweight module assembly includes a counterweight base plate, a counterweight mounting plate, a counterweight column, a counterweight top plate, and a counterweight block. The counterweight base plate is installed at the rear end of the first compartment plate, one end of the counterweight column is connected to the counterweight base plate, and the other end of the counterweight column passes through the counterweight mounting plate and is connected to the counterweight top plate. A fixed block is provided in the middle of the counterweight top plate, and counterweight blocks are provided at both ends of the counterweight top plate.

7. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 1, characterized in that: The electrical component includes an electrical side panel, an electrical base panel, an electrical relay, an electrical terminal, an electrical power supply, and an electrical network interface. The electrical base panel is installed on the second compartment panel. An electrical side panel is provided on one side of the electrical base panel. An electrical terminal is provided on the electrical base panel. An electrical network interface is provided on one side of the electrical terminal. An electrical relay is provided on the electrical side panel. An electrical power supply is provided on one side of the electrical relay. The electrical power supply is electrically connected to the electrical relay, the electrical terminal, and the electrical network interface, respectively.

8. The laboratory lithium battery high temperature and high pressure formation equipment according to claim 1, characterized in that: The cylinder assembly includes a cylinder, a cylinder driving motor, and a cylinder base. The cylinder base is provided with a cylinder driving motor, and one side of the cylinder driving motor is provided with a cylinder. The cylinder output shaft passes through the circular hole in the middle of the pressure bottom plate and is connected to the gravity block bottom plate. The cylinder driving motor drives the cylinder to move, and the cylinder drives the gravity block bottom plate to move. The gravity block bottom plate moves up and down on the pressure guide rod.

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