Formation and capacity grading device applied to cylindrical battery

Abstract

The utility model relates to a formation and capacity grading device applied to a cylindrical battery. The formation and capacity grading device comprises a rack, a battery platform, a first probe assembly, a second probe assembly and a driving assembly, the battery platform comprises a base, a battery sleeve and a spring, the base is movably connected with the rack, the base can horizontally move relative to the rack, a mounting hole is formed in the base, the battery sleeve is inserted into the mounting hole, the battery sleeve is elastically connected with the base through the spring, the battery sleeve is provided with a containing groove, and an avoiding hole is formed in the groove bottom of the containing groove. The first probe assembly is arranged above the battery platform, and the second probe assembly is arranged below the battery platform. The driving assembly is arranged on the rack, and the driving assembly is connected with the first probe assembly to drive the first probe assembly to move up and down. And the base and the battery sleeve are detachably connected, so that a proper battery sleeve can be selected for installation and use according to the specific model of the cylindrical battery. The structure can be used for performing formation and capacity grading tests on circumferential batteries of various models, and has the characteristic of high compatibility.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a chemical composition and capacity division device applied to cylindrical batteries. Background Art

[0002] In the production process of lithium batteries, formation and capacity division are very important processes. Formation is to connect the lithium battery to the power supply and use the energy of electricity to activate the internal activity of the lithium battery to ensure that the lithium battery has good charge and discharge performance and cycle life. Capacity division is to perform several full-load charge and discharge cycles on the activated lithium battery to test the DC internal resistance, charge and discharge voltage, constant current discharge, constant voltage discharge, and constant power discharge characteristics of the lithium battery, and screen and classify the lithium battery. The existing formation and capacity division device is mainly used in the production line to meet the mass production of lithium batteries. The formation and capacity division device is designed for a specific model of lithium batteries, that is, the shape and size of the fixture used to install the lithium battery on the formation and capacity division device are matched with the corresponding lithium battery model. In the laboratory, it is necessary to carry out corresponding process tests on various models of lithium batteries. The number of lithium batteries of each model is small (ranging from a few to more than a dozen), and the diameter, length and other dimensions of lithium batteries of different models are different. Therefore, the existing formation and capacity division device is not suitable for process tests in the laboratory. Utility Model Content

[0003] The utility model aims to provide a chemical composition and capacity test device for cylindrical batteries, which has strong compatibility and is suitable for chemical composition and capacity test of cylindrical batteries of various models.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A device for distributing and distributing capacity of cylindrical batteries is provided, comprising:

[0006] frame;

[0007] A battery platform, comprising a base, a battery sleeve and a spring, wherein the base is movably connected to the frame, the base can move horizontally relative to the frame, the base is provided with a mounting hole penetrating the top and bottom surfaces thereof, the battery sleeve is inserted into the mounting hole, the battery sleeve is elastically connected to the base via the spring, the battery sleeve is provided with a receiving groove for inserting a cylindrical battery, and a avoidance hole communicating with the outside is provided at the bottom of the receiving groove;

[0008] A first probe assembly, which is disposed above the battery platform;

[0009] a second probe assembly, which is disposed below the battery platform;

[0010] A driving assembly is arranged on the frame, and the driving assembly is connected to the first probe assembly to drive the first probe assembly to move up and down.

[0011] Furthermore, the battery platform also includes a limiting ring, which is sleeved on the periphery of the battery sleeve, the limiting ring is threadedly connected to the top of the battery sleeve, a limiting step is provided on the hole wall of the mounting hole, the spring is sleeved on the periphery of the battery sleeve, and both ends of the spring are respectively abutted against the limiting ring and the limiting step.

[0012] Furthermore, the frame includes two parallel and spaced guide rails, and two ends of the base are slidably connected to the two guide rails respectively.

[0013] Furthermore, the frame also includes a support member and a positioning screw, the positioning screw is threadedly connected to the support member, and along the sliding direction of the base, one end of the base is used to abut against the positioning screw.

[0014] Furthermore, a positioning plate is provided at one end of the positioning screw facing the base, and the base is magnetically connected to the positioning plate.

[0015] Furthermore, the driving assembly and the frame can be raised and lowered.

[0016] Furthermore, the driving assembly includes a movable plate, which is detachably connected to the frame via fasteners; a connecting rod mechanism, a pressure rod and a push rod are provided on the movable plate; the pressure rod and the push rod are both hinged to the connecting rod structure; the pressure rod can drive the push rod to lift and lower through the connecting rod mechanism; and the end of the push rod facing away from the connecting rod mechanism is connected to the first probe assembly.

[0017] Furthermore, the driving assembly also includes a guide rod and a return spring. The guide rod is inserted through the frame. One end of the guide rod is connected to the first probe assembly, and the other end is elastically connected to the frame via the return spring.

[0018] Furthermore, a plurality of the mounting holes are arranged on the base at intervals along a first direction, and the first direction is perpendicular to a movement direction of the base.

[0019] Further, the first probe assembly includes a first mounting plate and a plurality of positive probes disposed on the first mounting plate, the plurality of positive probes correspond to the plurality of mounting holes one by one, and the positive probes are coaxial with the corresponding mounting holes;

[0020] The second probe assembly includes a second mounting plate and a plurality of negative electrode probes disposed on the second mounting plate. The plurality of negative electrode probes correspond to the plurality of mounting holes one by one, and the negative electrode probes are coaxial with the corresponding mounting holes.

[0021] The beneficial effects of the utility model are as follows: a battery platform is formed by setting a base, a battery sleeve and a spring, the battery sleeve is installed in the mounting hole of the base, and the battery sleeve and the base are elastically connected by a spring. During the test operation, it is necessary to drive the first probe assembly to descend through the driving assembly, and use the first probe assembly to push the cylindrical battery and the battery sleeve to descend, so that the first probe assembly and the second probe assembly are connected to the two ends of the cylindrical battery. In this process, the spring is compressed, and the abutment pressure between the first probe assembly and the cylindrical battery, and the abutment pressure between the second probe assembly and the cylindrical battery are the elastic force of the spring. It is beneficial to adjust the abutment pressure between the cylindrical battery and the first probe assembly or the second probe assembly by replacing springs with different elastic moduli, so as to achieve the purpose of process testing. The base and the battery sleeve are detachably connected, so that the appropriate battery sleeve can be selected for installation and use according to the specific model of the cylindrical battery in the test. This structure can perform chemical composition and capacity tests on various types of circumferential batteries, and has the characteristics of strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a first viewing angle of a capacitance-composition device for cylindrical batteries according to an embodiment of the utility model.

[0023] Figure 2 It is a schematic diagram of a second viewing angle of a capacity-splitting device for cylindrical batteries according to an embodiment of the utility model.

[0024] Figure 3 Schematic diagram of a battery platform according to an embodiment of the present invention.

[0025] Figure 4 It is a cross-sectional view of a battery platform according to an embodiment of the utility model.

[0026] Figure 5 Schematic diagram of a drive assembly according to an embodiment of the present utility model.

[0027] In the figure:

[0028] 1. Frame; 11. Workbench; 12. Mounting base; 121. Guide rail; 13. Column; 14. Positioning screw; 15. Support; 16. Positioning plate; 17. Fixing plate; 2. Battery platform; 21. Base; 211. Mounting hole; 212. Limiting step; 22. Battery sleeve; 221. Avoidance hole; 23. Spring; 24. Limiting ring; 25. Handle; 3. Drive assembly; 31. Movable plate; 32. Connecting rod mechanism; 33. Pressure rod; 34. Push rod; 35. Guide sleeve; 36. Guide rod; 37. Reset spring; 4. First probe assembly; 41. First mounting plate; 42. Positive probe; 5. Second probe assembly; 51. Second mounting plate; 52. Negative probe; 6. Cylindrical battery. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0030] like Figure 1 and Figure 2 As shown, the utility model provides a chemical composition capacity device for cylindrical batteries (hereinafter referred to as chemical composition capacity device), which is used for chemical composition capacity test of cylindrical batteries 6. The chemical composition capacity device includes a frame 1, a battery platform 2, a drive assembly 3, a first probe assembly 4 and a second probe assembly 5. Among them, the frame 1 plays an overall supporting role, and the battery platform 2, the drive assembly 3, the first probe assembly 4 and the second probe assembly 5 are all installed on the frame 1. The battery platform 2 is used to install the cylindrical battery 6. The first probe assembly 4 is arranged above the battery platform 2, and the second probe assembly 5 is arranged below the battery platform 2. The drive assembly 3 is connected to the first probe assembly 4, and is used to drive the first probe assembly 4 to move in the vertical direction, and the first probe assembly 4 and the second probe assembly 5 are respectively connected to the two ends (positive and negative electrodes) of the cylindrical battery 6. The first probe assembly 4 and the second probe assembly 5 are prior art, and the first probe assembly 4 and the second probe assembly 5 are connected to the power supply and the test equipment, and the first probe assembly 4 and the second probe assembly 5 are used to transmit power to the cylindrical battery 6, and collect current and voltage data.

[0031] The frame 1 includes a workbench 11, a mounting base 12, a column 13, a positioning screw 14, a support member 15, a positioning plate 16 and a fixing plate 17. The workbench 11 is rectangular and plays an integral supporting role. The mounting base 12 is used to mount the battery platform 2. There are two mounting bases 12. Both mounting bases 12 are mounted on the top surface of the workbench 11. The two mounting bases 12 are parallel and spaced apart along the length direction of the workbench 11 (the X direction in the figure). The mounting base 12 includes a base body and a guide rail 121 arranged on the base body. The guide rails 121 on the two mounting bases 12 are parallel to each other, and the length of the guide rail 121 extends along the width direction of the workbench 11 (the Y direction in the figure), and the guide rail 121 is arranged horizontally. The two ends of the battery platform 2 are respectively mounted on the two guide rails 121, and the battery platform 2 is slidably connected to the guide rails 121, so that the battery platform 2 can slide along the length direction of the guide rails 121. That is, the battery platform 2 can move horizontally along the width direction of the workbench 11. There are two columns 13, and the two columns 13 are arranged at intervals along the length direction of the workbench 11. The columns 13 are used to support the drive assembly 3 and the first probe assembly 4, so that the drive assembly 3 and the first probe assembly 4 can be installed above the battery platform 2. Specifically, the fixing plate 17 is installed on the column 13, and the drive assembly 3 and the first probe assembly 4 are installed on the fixing plate 17. The positioning screw 14, the support member 15 and the positioning plate 16 together constitute a limiting structure for limiting the movement position of the battery platform 2. Specifically, the limiting structure is located at one end of the movement direction of the battery platform 2, and the support member 15 is installed on the top surface of the workbench 11. The support member 15 is used to install the positioning screw 14 and the positioning plate 16, so that the height of the positioning screw 14 and the positioning plate 16 matches the height of the battery platform 2 (the height here refers to the height relative to the workbench 11). The positioning screw 14 is threadedly connected to the support member 15, and the positioning plate 16 is arranged at one end of the positioning screw 14 facing the battery platform 2. In actual application, after the cylindrical battery 6 is installed, the battery platform 2 is pushed to move along the length direction of the guide rail 121 until the battery platform 2 abuts against the positioning plate 16 to achieve the positioning of the battery platform 2. At this time, the cylindrical battery 6 is aligned with the first probe assembly 4.

[0032] Reference Figure 3 and Figure 4As shown, the battery platform 2 includes a base 21, a battery sleeve 22, a spring 23, a limiting ring 24 and a handle 25. The length of the base 21 extends along the length direction of the workbench 11. The handle 25 is installed on the side of the base 21 away from the limiting structure so that the operator can push the entire battery platform 2 to move through the handle 25. Through holes for installing the guide rails 121 are provided at both ends of the length direction of the base 21. The guide rails 121 are cylindrical structures, and correspondingly, the through holes are circular holes. The guide rails 121 are penetrated in the through holes, and the two are slidably connected so that the two ends of the base 21 are slidably connected with the two guide rails 121 respectively. A plurality of mounting holes 211 are provided on the base 21, and the plurality of mounting holes 211 are spaced apart along the length direction of the base 21 (i.e., the first direction, shown in the figure, in the X direction). The mounting holes 211 pass through the top and bottom surfaces of the base 21. The mounting holes 211 are used to install the battery sleeves 22. The mounting holes 211 are clearance-matched with the battery sleeves 22 so that the battery sleeves 22 can move along the axial direction of the mounting holes 211. The battery sleeve 22 is a hollow structure, and the battery sleeve 22 is used to install the cylindrical battery 6. The battery sleeve 22 is provided with a receiving groove for accommodating the cylindrical battery 6, and the notch of the receiving groove is upward. A avoidance hole 221 connected to the outside is provided at the bottom of the receiving groove, so that the second probe assembly 5 located below the battery platform 2 can pass through the avoidance hole 221 and connect with the cylindrical battery 6. The top of the battery sleeve 22 is provided with a thread, and the limit ring 24 is sleeved on the periphery of the battery sleeve 22 and is threadedly connected to the battery sleeve 22. The limit ring 24 plays the role of fixing the spring 23. Correspondingly, a limit step 212 for fixing the spring 23 is provided on the hole wall of the mounting hole 211. The spring 23 is sleeved on the periphery of the battery sleeve 22, and the two ends of the spring 23 are respectively abutted against the limit ring 24 and the limit step 212.

[0033] When in use, first pull the base 21 out from under the first probe assembly 4 through the handle 25, select the battery sleeve 22 that matches the cylindrical battery 6 and install it in the mounting hole 211. At the same time, assemble the spring 23 and the limit ring 24 so that the battery sleeve 22 is elastically connected to the base 21 through the spring 23. Then insert the cylindrical battery 6 into the mounting groove of the battery sleeve 22. Finally, push the base 21 to move along the length direction of the guide rail 121 until one end of the base 21 abuts against the positioning plate 16. At this time, the base 21 is just below the first probe assembly 4, so that the first probe assembly 4 can be connected to the cylindrical battery 6 when it descends.

[0034] Optionally, in another embodiment, the positioning plate 16 may be eliminated, so that the base 21 directly abuts against the end of the positioning screw 14 to achieve positioning of the battery platform 2. At the same time, in order to avoid rebound after the base 21 is pushed against the positioning plate 16, a magnet is provided on the positioning plate 16, and a magnet or ferromagnetic material is provided on the base 21, and the base 21 is connected to the positioning plate 16 by magnetic attraction to avoid displacement of the base 21 due to rebound.

[0035] Optionally, the first probe assembly 4 includes a first mounting plate 41 and a plurality of positive probes 42. The positive probe 42 is detachably connected to the first mounting plate 41 by a fastener, so as to facilitate the adjustment of the mounting position of the positive probe 42 during actual use. The plurality of positive probes 42 correspond one-to-one to the plurality of mounting holes 211 on the base 21, and the positive probe 42 is coaxial with the corresponding mounting hole 211. It can be understood that when the cylindrical battery 6 is inserted into the mounting hole 211, the positive pole of the cylindrical battery 6 faces upward, and the cylindrical battery 6 is coaxial with the mounting hole 211. This structure enables the positive probe 42 to be directly opposite to the positive pole of the cylindrical battery 6, so that the positive probe 42 abuts against the positive pole of the cylindrical battery 6.

[0036] The second probe assembly 5 includes a second mounting plate 51 and a plurality of negative electrode probes 52. The second mounting plate 51 is mounted on the workbench 11. The negative electrode probe 52 is detachably connected to the second mounting plate 52 by fasteners, so as to facilitate the adjustment of the mounting position of the negative electrode probe 52 during actual use. The plurality of negative electrode probes 42 correspond one-to-one to the plurality of mounting holes 211 on the base 21, and the negative electrode probe 52 is coaxial with the corresponding mounting hole 211. When in use, the negative electrode probe 52 can pass through the avoidance hole 221 on the battery sleeve 22 and abut against the negative electrode of the cylindrical battery 6.

[0037] Reference Figure 1 and Figure 5 As shown, the drive assembly 3 is mounted on the fixed plate 17 of the frame 1, and the drive assembly 3 is located above the first probe assembly 4. The drive assembly 3 is connected to the first probe assembly 4 to drive the first probe assembly 4 to move up and down. The drive assembly 3 and the frame 1 can be raised and lowered, that is, the height of the drive assembly 3 on the frame 1 is adjustable, so as to adjust the spacing between the first probe assembly 4 and the battery platform 2, thereby adapting to cylindrical batteries 6 of different lengths. It can be understood that in the test, when the spacing between the cylindrical battery 6 and the first probe assembly 4 does not match the movement stroke of the first probe assembly 4, the installation position of the drive assembly 3 can be adjusted (raised or lowered) to ensure that under the driving action of the drive assembly 3, the first probe assembly 4 and the second probe assembly 5 can abut against the two ends of the cylindrical battery 6.

[0038] Specifically, the driving assembly 3 includes a movable plate 31, a connecting rod mechanism 32, a pressure rod 33, a push rod 34, a guide sleeve 35, a guide rod 36 and a reset spring 37. The movable plate 31 is used to be installed and connected with the fixed plate 17. The movable plate 31 is provided with a plurality of waist-shaped holes, and the waist-shaped holes are used to pass fasteners, which are bolts or screws. That is, the movable plate 31 is detachably connected with the fixed plate 17 through the fasteners. In practical applications, the installation height of the entire driving assembly 3 can be adjusted by adjusting the relative position of the fasteners and the waist-shaped holes. The pressure rod 33 and the push rod 34 are both hinged to the connecting rod mechanism 32, so that the pressure rod 33 can drive the push rod 34 to move up and down through the connecting rod mechanism 32. The guide sleeve 35 is used to install the push rod 34, and the guide sleeve 35 is installed on the movable plate 31. The push rod 34 is passed through the guide sleeve 35 and is slidably connected with the guide sleeve 35. The length of the push rod 34 extends along the setting direction. The connecting rod mechanism 32 includes two connecting rods, which are arranged in the vertical direction. One end of the two connecting rods is hinged to each other, one end of the connecting rod located at the top is hinged to the movable plate 31, and one end of the connecting rod located at the bottom is hinged to the push rod 34. One end of the pressure rod 33 is provided with a grip for the operator to hold and use. The end of the pressure rod 33 away from the grip is connected to the junction of the two connecting rods. By rotating the pressure rod 33, the push rod 34 can be driven to move up and down under the movement of the connecting rod mechanism 32. The push rod 34 can be fixed by using the self-locking function of the connecting rod mechanism 32. In practical applications, the specific structure of the connecting rod mechanism 32 can be adaptively designed according to the movement stroke of the push rod 34. The end of the push rod 34 away from the connecting rod mechanism 32 is connected and fixed to the first mounting plate 41 of the first probe assembly 4. That is, the lifting and lowering movement of the push rod 34 is used to drive the lifting and lowering movement of the first probe assembly 4.

[0039] There are two guide rods 36, and the two guide rods 36 are spaced apart in the horizontal direction. The guide rods 36 are inserted into the fixed plate 17 of the frame 1, and the guide rods 36 are slidably connected to the fixed plate 17. The length of the guide rods 36 extends in the vertical direction. The bottom end of the guide rod 36 is connected and fixed to the first mounting plate 41 of the first probe assembly 4, and the reset spring 37 is sleeved on the periphery of the guide rod 36. The top end of the guide rod 36 is elastically connected to the fixed plate 17 through the reset spring 37. In this embodiment, the guide rod 36 and the reset spring 37 constitute the reset mechanism of the drive assembly 3. When the connecting rod mechanism 32 is not self-locking, the reset spring 37 can drive the guide rod 36 to rise, and then drive the first probe assembly 4 to rise. On the contrary, when the connecting rod mechanism 32 is self-locking, the push rod 34 drives the first probe assembly 4 to descend and lock. At this time, the reset spring 37 is compressed.

[0040] It is understandable that the driving assembly 3 has a simple overall structure, low cost, and is easy to use. In other embodiments, the driving assembly 3 may also be configured as a commonly used driving tool such as a cylinder, a hydraulic cylinder, or an electric telescopic member.

[0041] Specifically, the method of using the chemical fractionation device is as follows:

[0042] Step S1, pull the battery platform 2 away from the column 13, select a battery sleeve 22 matching the cylindrical battery 6 and insert it into the mounting hole 211 of the base 21, and install the spring 23 and the limit ring 24. The cylindrical battery 6 is inserted into the mounting groove of the battery sleeve 22.

[0043] Step S2 , pushing the battery platform 2 to the bottom of the first probe assembly 4 , and making the side surface of the base 21 abut against the positioning plate 16 to achieve positioning of the battery platform 2 .

[0044] Step S3, operate the pressure rod 33 of the driving assembly 3 to make the push rod 34 descend to drive the first probe assembly 4 to descend. When the positive probe 42 of the first probe assembly 4 abuts against the positive electrode of the cylindrical battery 6, the driving assembly 3 continues to drive the first probe assembly 4 to descend, thereby causing the cylindrical battery 6 and the battery sleeve 22 to move downward under the push of the first probe assembly 4 until the negative probe 52 of the second probe assembly 5 abuts against the negative electrode of the cylindrical battery 6. At this time, the positive probe 51 and the negative probe 52 are respectively connected to the two ends of the cylindrical battery 6 to conduct the circuit.

[0045] Step S4: After the test is completed, the pressure rod 33 of the driving assembly 3 is operated in reverse, so that the driving assembly 3 drives the first probe assembly 4 to rise. The first probe assembly 4 and the second probe assembly 5 are separated from the cylindrical battery 6.

[0046] The significant effect of this embodiment is that the battery platform 2 is formed by setting the base 21, the battery sleeve 22 and the spring 23, the battery sleeve 22 is installed in the mounting hole 211 of the base 21, and the battery sleeve 22 is elastically connected to the base 21 through the spring 23. During the test operation, it is necessary to drive the first probe assembly 4 to descend through the driving assembly 3, and use the first probe assembly 4 to push the cylindrical battery 6 and the battery sleeve 22 to descend, so that the first probe assembly 4 and the second probe assembly 5 are connected to the two ends of the cylindrical battery 6. In this process, the spring 23 is compressed, and the abutment pressure between the first probe assembly 4 and the cylindrical battery 6, and the abutment pressure between the second probe assembly 5 and the cylindrical battery 6 are the elastic force of the spring 23. It is beneficial to replace the spring 23 with different elastic moduli to adjust the abutment pressure between the cylindrical battery 6 and the first probe assembly 4 or the second probe assembly 5, so as to achieve the purpose of the process test. The base 21 and the battery sleeve 22 are detachably connected, so that the appropriate battery sleeve 22 can be selected for installation and use according to the specific model of the cylindrical battery 6 in the test. This structure can perform chemical composition and capacity tests on various types of circular batteries 6 and has the characteristic of strong compatibility.

[0047] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A device for chemical composition and capacity division used in cylindrical batteries, characterized in that: include: frame; A battery platform, comprising a base, a battery sleeve and a spring, wherein the base is movably connected to the frame, the base can move horizontally relative to the frame, the base is provided with a mounting hole penetrating the top and bottom surfaces thereof, the battery sleeve is inserted into the mounting hole, the battery sleeve is elastically connected to the base via the spring, the battery sleeve is provided with a receiving groove for inserting a cylindrical battery, and a avoidance hole communicating with the outside is provided at the bottom of the receiving groove; A first probe assembly, which is disposed above the battery platform; a second probe assembly, which is disposed below the battery platform; A driving assembly is arranged on the frame, and the driving assembly is connected to the first probe assembly to drive the first probe assembly to move up and down.

2. The device for chemical separation and capacity division for cylindrical batteries according to claim 1, characterized in that: The battery platform also includes a limiting ring, which is sleeved on the periphery of the battery sleeve and is threadedly connected to the top of the battery sleeve. A limiting step is provided on the hole wall of the mounting hole. The spring is sleeved on the periphery of the battery sleeve, and both ends of the spring are respectively abutted against the limiting ring and the limiting step.

3. The device for chemical separation and capacity division for cylindrical batteries according to claim 1, characterized in that: The frame comprises two parallel and spaced guide rails, and two ends of the base are respectively slidably connected to the two guide rails.

4. The device for chemical separation and capacity division for cylindrical batteries according to claim 3, characterized in that: The frame also includes a support member and a positioning screw, wherein the positioning screw is threadedly connected to the support member, and along the sliding direction of the base, one end of the base is used to abut against the positioning screw.

5. The device for chemical separation and capacity division for cylindrical batteries according to claim 4, characterized in that: A positioning plate is provided at one end of the positioning screw facing the base, and the base is magnetically connected to the positioning plate.

6. The device for dispersing and dispersing a cylindrical battery according to any one of claims 1 to 5, characterized in that: The driving assembly and the frame can be raised and lowered.

7. The device for chemical separation and capacity division for cylindrical batteries according to claim 6, characterized in that: The driving assembly includes a movable plate, which is detachably connected to the frame via fasteners; a connecting rod mechanism, a pressure rod and a push rod are provided on the movable plate; the pressure rod and the push rod are both hinged to the connecting rod structure; the pressure rod can drive the push rod to move up and down through the connecting rod mechanism; and one end of the push rod facing away from the connecting rod mechanism is connected to the first probe assembly.

8. The device for chemical separation and capacity division for cylindrical batteries according to claim 7, characterized in that: The driving assembly further comprises a guide rod and a return spring. The guide rod is passed through the frame. One end of the guide rod is connected to the first probe assembly, and the other end is elastically connected to the frame via the return spring.

9. The device for dispersing and dispersing capacity applied to cylindrical batteries according to any one of claims 1 to 5, characterized in that: The base is provided with a plurality of mounting holes spaced apart along a first direction, and the first direction is perpendicular to a movement direction of the base.

10. The device for chemical separation and capacity division for cylindrical batteries according to claim 9, characterized in that: The first probe assembly includes a first mounting plate and a plurality of positive probes disposed on the first mounting plate, the plurality of positive probes correspond to the plurality of mounting holes one by one, and the positive probes are coaxial with the corresponding mounting holes; The second probe assembly includes a second mounting plate and a plurality of negative electrode probes disposed on the second mounting plate. The plurality of negative electrode probes correspond to the plurality of mounting holes one by one, and the negative electrode probes are coaxial with the corresponding mounting holes.

Images