Automatic hot-press battery charging and discharging device

Abstract

This invention discloses an automatic hot-press battery charging and discharging device, comprising: a packaging box for packaging battery cells, including a box body and a box cover, the packaging box having notches corresponding to the electrodes of the battery cells; an opening and closing mechanism including a support platform for supporting the packaging box, a gripper, and a first driver connected to the gripper; a hot-pressing mechanism including a first pressure plate, a second pressure plate, and electrode connectors; the first pressure plate and the second pressure plate are disposed opposite to each other and are movable relative to each other to clamp the packaging box containing the battery cells between the first pressure plate and the second pressure plate; at least one of the first pressure plate and the second pressure plate has a heating element; and a conveying mechanism for conveying the packaging box and the battery cells to different workstations. The above-described automatic hot-press battery charging and discharging device provides an openable and closable packaging box for the battery cells, eliminating the need to purchase separate clamps and material trays for each battery type, thereby significantly reducing equipment procurement and maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of battery capacity formation equipment technology, and in particular to an automatic hot-press battery charging and discharging device. Background Technology

[0002] In battery manufacturing, capacity formation is a crucial step to ensure battery performance and quality. Capacity formation typically involves charging or discharging the battery using automated charge / discharge equipment to test its capacity, stability, and reliability. During this process, the battery needs to be clamped in fixtures to ensure it maintains a stable physical state during charging and discharging. Simultaneously, the fixtures must provide appropriate pressure and heat to the battery, allowing it to charge and discharge under predetermined pressure and temperature conditions, thereby optimizing the battery's chemical reactions and performance.

[0003] However, current capacity formation processes face challenges due to the diversification of battery casing structures. Commercially available battery cells are mainly divided into two types: hard-shell and soft-shell. Due to the differences in structure and materials between these two types of battery casings, existing charging and discharging equipment requires different types of clamps and material trays during clamping and heating. For example, hard-shell batteries typically require more robust clamps to provide sufficient pressure, while soft-shell batteries require more flexible and flexible clamps to avoid damaging the battery casing. Furthermore, different types of battery cells also require different material trays during loading and handling to accommodate their differences in shape and size.

[0004] This practice of designing dedicated clamps and trays for different battery casings has led to a diversification and complexity in the configuration of charging and discharging equipment. Specifically, it requires separate clamps and trays for each type of battery cell, thus increasing the overall cost of the equipment. In addition, since each piece of equipment occupies a certain amount of physical space, the configuration of multiple pieces of equipment can result in the production line occupying too much space, affecting production efficiency and factory space utilization. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic hot-press battery charging and discharging device that is compatible with both soft-pack and hard-shell batteries.

[0006] To achieve the above objectives, the present invention provides an automatic hot-press battery charging and discharging device, comprising:

[0007] A packaging box for packaging battery cells, the packaging box including a box body and a box lid, the packaging box having notches corresponding to the electrodes of the battery cells;

[0008] An opening and closing mechanism includes a support platform for supporting the packaging box, a gripper, and a first driver connected to the gripper. The gripper is used to grip or release the box lid, and the first driver is used to drive the gripper to move closer to or away from the support platform to open or close the box lid.

[0009] A hot-pressing mechanism includes a first pressure plate, a second pressure plate, and an electrode connector; the first pressure plate and the second pressure plate are disposed opposite to each other and are movable relative to each other to clamp the packaging box containing the battery cell between the first pressure plate and the second pressure plate; the electrode connector is used to connect the battery cell located in the packaging box between the first pressure plate and the second pressure plate to a charging and discharging power source; at least one of the first pressure plate and the second pressure plate has a heating element;

[0010] A handling mechanism is used to move the packaging box and the battery cell to different workstations.

[0011] Preferably, the first driver includes a first rotary motor and a support plate connected to the rotary shaft of the first rotary motor. The gripper includes a flip plate, the bottom of which is pivotally connected to the support platform, and the top of which is connected to the free end of the support plate. The support plate can drive the top of the flip plate to rotate relative to the bottom, so that the flip plate moves closer to or away from the support platform. A plurality of first suction holes based on negative pressure airflow are provided on the side of the flip plate near the support platform.

[0012] Preferably, the support platform has an inclined surface that abuts against the box body of the packaging box, and the inclined surface has a plurality of second suction holes based on the action of negative pressure airflow.

[0013] Preferably, the device further includes a first tray and a second tray. The first tray has a plurality of first slots for securing the packaging box. The second tray has a plurality of second slots for securing the battery cell. The opening and closing mechanism is located between the first tray and the second tray.

[0014] Preferably, the hot pressing mechanism further includes a first mounting bracket and a second driver disposed on the first mounting bracket. The first pressure plate is disposed at one end of the first mounting bracket and fixedly connected to the first mounting bracket. The second pressure plate is connected to the second driver through a guide rod. The second driver is used to drive the second pressure plate closer to or away from the first pressure plate through the guide rod.

[0015] Preferably, a sliding sleeve is provided at the edge of the first pressure plate, and the guide rod passes through the sliding sleeve and is connected to the second driver.

[0016] Preferably, the second driver includes a lead screw and a second rotary motor that is drivenly connected to the lead screw. The first mounting bracket is also provided with a slide rail and a sliding frame that is slidably connected to the slide rail. The sliding frame is also connected to a movable nut on the lead screw, and the guide rod is connected to the sliding frame.

[0017] Preferably, the top of the first pressure plate is provided with a second mounting bracket connected thereto, and the second mounting bracket is also provided with a third mounting bracket slidably connected thereto and a third driver for driving the third mounting bracket to move horizontally.

[0018] A probe holder is also provided above the first pressure plate. The probe holder is connected to the third mounting bracket via a lifting driver. The probe holder is provided with a conductive probe that serves as the electrode connector. The conductive probe is used to contact the electrode located in the notch at the top of the packaging box.

[0019] Preferably, a limiting post is provided at the edge of the first pressure plate, and an enlarged portion is provided at the top of the limiting post. The diameter of the enlarged portion is larger than the diameter of the limiting post. A limiting hole is provided on the side of the packaging box. The limiting hole includes a first part and a second part that are interconnected. The diameter of the first part is equivalent to that of the enlarged portion, and the diameter of the second part is equivalent to that of the limiting post. The first part is located below the second part.

[0020] Preferably, the conveying mechanism includes a frame and a first manipulator and a second manipulator mounted on the frame and movable in three axes; the first manipulator is used to convey the packaging box and the battery cell to or from the opening and closing mechanism; the second manipulator is used to move the packaging box containing the battery cell between the hot pressing mechanism and the opening and closing mechanism.

[0021] Compared with the prior art, the automatic hot-press battery charging and discharging device provided by the above-mentioned technical solution of the present invention is equipped with an openable packaging box for the battery cells. In this way, when charging and discharging different types of battery cells in the battery capacity formation process, only the corresponding packaging box needs to be configured according to the type of battery cell. There is no need to purchase fixtures and material trays separately for each type of battery, thereby significantly reducing equipment procurement and maintenance costs. In addition, it also reduces the need for parallel configuration of multiple devices, optimizes the production line layout, effectively saves factory space resources, and improves space utilization. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the charging and discharging device in an embodiment of the present invention.

[0023] Figure 2 for Figure 1 The diagram shows the removal of the handling mechanism.

[0024] Figure 3 This is a diagram showing the packaging box in an open state according to an embodiment of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the opening and closing mechanism in an embodiment of the present invention.

[0026] Figure 5 In order to be in Figure 4 A diagram showing the packaging box placed inside.

[0027] Figure 6 This is a three-dimensional structural diagram of the conveying mechanism in an embodiment of the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the first tray in an embodiment of the present invention.

[0029] Figure 8 This is a cross-sectional view of the second tray in an embodiment of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the hot pressing mechanism in an embodiment of the present invention.

[0031] Figure 10 for Figure 9 Side view of the hot pressing mechanism.

[0032] Figure 11 This is a three-dimensional structural diagram of the first pressure plate in an embodiment of the present invention.

[0033] Figure 12 This is a three-dimensional structural diagram of the second pressure plate in an embodiment of the present invention.

[0034] Figure 13 This is a three-dimensional structural diagram of the limiting post in an embodiment of the present invention. Detailed Implementation

[0035] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0036] This embodiment discloses an automatic hot-press battery charging and discharging device for use in the capacity formation process during battery manufacturing. Figure 1 and Figure 2 The charging and discharging device includes a packaging box 1, an opening and closing mechanism 2, a hot pressing mechanism 3, and a handling mechanism 4.

[0037] For packaging box 1, such as Figure 3 It is used to package battery cells BT. The packaging box 1 includes a box body 10 and a box cover 11. The packaging box 1 is provided with notches 12 corresponding to the electrodes of the battery cells BT.

[0038] When charging and discharging the battery cell BT, the lid 11 of the packaging box 1 must first be opened, then the battery cell BT is placed into the box body 10, and then the lid 11 is closed onto the box body 10. Finally, the charging and discharging operation under pressure and heating is carried out using the packaging box 1 containing the battery cell BT as a carrier.

[0039] The opening and closing mechanism 2 is used to open or close the packaging box 1. The packaging box 1 includes a support platform 20 for supporting the packaging box 1, a gripper 21 and a first driver 22 connected to the gripper 21. The gripper 21 is used to grip or release the lid 11, and the first driver 22 is used to drive the gripper 21 to move closer to or away from the support platform 20 to open or close the lid 11.

[0040] like Figure 9 and Figure 10 The hot pressing mechanism 3 is an actuator that performs charging and discharging operations on the packaging box 1 containing the battery cell BT, and includes a first pressure plate 31, a second pressure plate 32, and an electrode connector 33.

[0041] The first pressure plate 31 and the second pressure plate 32 are arranged opposite to each other and can move relative to each other, so as to clamp the packaging box 1 containing the battery cell BT between the first pressure plate 31 and the second pressure plate 32.

[0042] The electrode connector 33 is used to connect the battery cell BT located in the packaging box 1 between the first pressure plate 31 and the second pressure plate 32 to the charging and discharging power source. At least one of the first pressure plate 31 and the second pressure plate 32 has a heating element 34 to provide a target temperature environment for the charging and discharging operation of the battery cell BT.

[0043] like Figure 1 and Figure 6 The conveying mechanism 4 is used to move the packaging box 1 and the battery cell BT to different workstations. Specifically, the packaging box 1 and the battery cell BT are moved sequentially to the opening and closing mechanism 2. After the battery cell BT is loaded into the packaging box 1 through the opening and closing mechanism 2, the packaging box 1 containing the battery cell BT is then moved to the hot pressing mechanism 3. In addition, after the charging and discharging is completed, the packaging box 1 containing the battery cell BT is moved from the hot pressing mechanism 3 back to the opening and closing mechanism 2. At this time, when the box cover 11 is opened through the opening and closing mechanism 2, the battery cell BT and the packaging box 1 are moved sequentially to their respective material placement positions.

[0044] like Figure 4 and Figure 5 The first driver 22 includes a first rotary motor 220 and a support plate 221 connected to the rotating shaft of the first rotary motor 220. When the first rotary motor 220 rotates, it drives the support plate 221 to rotate up and down.

[0045] The gripper 21 includes a flip plate 21, the bottom of which is pivotally connected to the support platform 20, and the top of which is connected to the free end of the support plate 221. The support plate 221 can drive the top of the flip plate 21 to rotate relative to the bottom, so that the flip plate 21 moves closer to or away from the support platform 20. Several first suction holes 210 based on negative pressure airflow are provided on the side of the flip plate 21 near the support platform 20.

[0046] In addition, the support platform 20 has an inclined surface 23 that abuts against the box body 10 of the packaging box 1, and the inclined surface 23 has a number of second suction holes 200 based on the negative pressure airflow.

[0047] When loading battery cells (BT), firstly, the first rotating motor 220 is rotated, causing the flipping plate 21 to rotate away from the support platform 20 via the tray 221. Then, the packaging box 1 is placed on the support platform 20. At this time, negative pressure is applied to the second suction hole 200 to attract the box body 10 of the packaging box 1 to the support platform 20. Next, the first rotating motor 220 is reversed, causing the flipping plate 21 to rotate closer to the support platform 20, and negative pressure is applied to the first suction hole 210. When the flipping plate 21 comes into contact with the box cover 11, the box cover 11 is attracted through the first suction hole 210. Then, the first rotating motor 220 is reversed again, causing the flipping plate 21 to rotate away from the support platform 20, thereby separating the box cover 11 from the box body 10. Figure 5 The battery cell BT is inserted into the box 10. Then, the first rotating motor 220 is reversed again, causing the flipping plate 21 to flip towards the support platform 20, closing the box cover 11 onto the box 10. Then, the negative pressure in the first suction hole 210 is released, and the first rotating motor 220 is reversed again, causing the flipping plate 21 to flip towards the support platform 20. At this time, the packaging box 1 containing the battery cell BT is placed on the support platform 20.

[0048] The process of removing the battery cell BT from packaging box 1 is similar to the process described above, and will not be repeated here.

[0049] In addition, such as Figure 2 A visual monitoring device 24 is also installed on one side of the opening and closing mechanism 2 to monitor the operation of the opening and closing mechanism 2.

[0050] On the other hand, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 The charging and discharging device in this embodiment also includes a first tray 5 and a second tray 6. The first tray 5 is provided with a plurality of first slots 50, which are used to fix the packaging box 1.

[0051] The second tray 6 is provided with several pairs of second slots 60, which are used to fix the battery cell BT. The opening and closing mechanism 2 is located between the first tray 5 and the second tray 6.

[0052] On the other hand, such as Figure 9 and Figure 10 The hot pressing mechanism 3 also includes a first mounting bracket 35 and a second driver 36 disposed on the first mounting bracket 35. The first pressure plate 31 is disposed at one end of the first mounting bracket 35 and is fixedly connected to the first mounting bracket 35. The second pressure plate 32 is connected to the second driver 36 through a guide rod 37. The second driver 36 is used to drive the second pressure plate 32 to move closer to or away from the first pressure plate 31 through the guide rod 37, so that the second pressure plate 32 reciprocates along the extension direction of the guide rod 37.

[0053] Specifically, a sliding sleeve 38 is provided at the edge of the first pressure plate 31, and the guide rod 37 passes through the sliding sleeve 38 and is connected to the second driver 36.

[0054] On the other hand, the second driver 36 includes a lead screw 360 and a second rotating motor 361 that is drivenly connected to the lead screw 360. The first mounting bracket 35 is also provided with a slide rail and a sliding frame 39 that is slidably connected to the slide rail. The sliding frame 39 is also connected to a movable nut on the lead screw 360. The guide rod 37 is connected to the sliding frame 39.

[0055] In this embodiment, when the second rotating motor 361 rotates, it will drive the movable nut on the lead screw 360 to move linearly along the lead screw 360, thereby driving the sliding frame 39 to move along the slide rail, and then driving the guide rod 37 to move linearly through the sliding frame 39.

[0056] On the other hand, a second mounting bracket 70 is provided on the top of the first pressure plate 31 and connected thereto. A third mounting bracket 71 and a third driver 72 for driving the third mounting bracket 71 to move horizontally are also provided on the second mounting bracket 70.

[0057] A probe holder 73 is also provided above the first pressure plate 31. The probe holder 73 is connected to the third mounting bracket 71 via a lifting driver 74. A first conductive probe 33, which serves as an electrode connector 33, is provided on the probe holder 73. The first conductive probe 33 is used to contact the electrode located in the notch 12 at the top of the packaging box 1.

[0058] It should be noted that a second conductive probe 33', which serves as an electrode connector 33, is also provided on the side edge of the first pressure plate 31.

[0059] When the battery cell BT has a hard shell, the notch 12 on the packaging box 1 is located at the top. Therefore, the battery cell BT is connected to the charging and discharging power supply through the first conductive probe 33. Then, when the packaging box 1 containing the battery cell BT is pressed between the first pressure plate 31 and the second pressure plate 32, the third driver 72 drives the third mounting bracket 71 to move horizontally so that the first conductive probe 33 on the probe holder 73 is aligned with the electrode on the packaging box 1. Then, the lifting driver 74 is activated to move the probe holder 73 downward so that the first conductive probe 33 abuts against the electrode on the packaging box 1.

[0060] When the battery cell BT is in a soft shell, the notch 12 on the packaging box 1 is located on the side. Therefore, the battery cell BT is connected to the charging and discharging power supply through the second conductive probe 33'. When the packaging box 1 containing the battery cell BT is pressed between the first pressure plate 31 and the second pressure plate 32, the second conductive probe 33' abuts against the electrode located on the side of the packaging box 1.

[0061] On the other hand, such as Figure 11 , Figure 13 A limiting post 80 is provided at the edge of the first pressure plate 31, and an enlarged portion 81 is provided at the top of the limiting post 80. The diameter of the enlarged portion 81 is larger than the diameter of the limiting post 80. Figure 3 The packaging box 1 has a limiting hole 13 on its side. The limiting hole 13 is gourd-shaped and includes a first part 130 and a second part 131 that are connected to each other. The diameter of the first part 130 is equivalent to that of the enlarged part 81, and the diameter of the second part 131 is equivalent to that of the limiting post 80. The first part 130 is located below the second part 131.

[0062] In response, when the packaging box 1 is placed between the first pressure plate 31 and the second pressure plate 32, the first part 130 of the upper limit hole 13 of the packaging box 1 is aligned with the enlarged part 81 of the limiting post 80, so that the enlarged part 81 enters the limiting hole 13. Then the grip on the packaging box 1 is released, and the packaging box 1 moves downward under its own weight, so that the smaller diameter second part 131 abuts against the limiting post 80. At this time, due to the obstruction of the enlarged part 81, the packaging box 1 is prevented from falling off the limiting post 80.

[0063] On the other hand, such as Figure 11 The first pressure plate 31 includes a first substrate 310, a first heat insulation plate 311, and a first heating plate 312. The first heat insulation plate 311 is located between the first substrate 310 and the first heating plate 312.

[0064] like Figure 12 The second pressure plate 32 includes a second substrate 320, a second heat insulation plate 321, and a second heating plate 322. The second heat insulation plate 321 is located between the second substrate 320 and the second heating plate 322.

[0065] Heating elements 24 are provided in both the first heating plate 312 and the second heating plate 322.

[0066] The front and back sides of the packaging box 1 abut against the first heating plate 312 and the second heating plate 322, respectively.

[0067] The two ends of the guide rod 37 are connected to the first substrate 310 and the second substrate 320 respectively, wherein the sliding sleeve 38 is located on the first substrate 310.

[0068] In addition, a pressure sensor (not shown) is provided on the back of the second substrate 320 to detect the pressure between the first substrate 310 and the second substrate 320.

[0069] On the other hand, such as Figure 1 and Figure 6 The handling mechanism 4 includes a frame and a first robotic arm 40 and a second robotic arm 41 mounted on the frame and capable of three-axis movement. The first robotic arm 40 is used to transport the packaging box 1 and the battery cell BT to or from the opening and closing mechanism 2. The second robotic arm 41 is used to move the packaging box 1 containing the battery cell BT between the hot pressing mechanism 3 and the opening and closing mechanism 2. In this embodiment, the working efficiency of the charging and discharging device is effectively improved through the cooperation of the two robotic arms.

[0070] Specifically, both the first robotic arm 40 and the second robotic arm 41 grasp the packaging box 1 or the battery cell BT by means of negative pressure adsorption.

[0071] In summary, when the automatic hot-press battery charging and discharging device disclosed in the above embodiments performs the charging and discharging of battery cell BT, firstly, the first robotic arm 40 picks up an empty packaging box 1 from the first tray 5 and places it on the support platform 20 of the opening and closing mechanism 2. Then, the first rotary motor 220 actuates to open the packaging box 1. Next, the first robotic arm 40 picks up a battery cell BT from the second tray 6 and places the battery cell BT into the box body 10 of the opened packaging box 1 on the support platform 20. Then, the first rotary motor 220 actuates again to close the packaging box 1. Next, the first robotic arm 40 resets and accurately picks up another empty packaging box 1, and the second robotic arm 41 moves to the support platform 20 position, picks up the packaging box 1 filled with battery cell BT (hereinafter referred to as the battery box) and transfers it to the hot-pressing mechanism 3, placing it on the first pressure plate 31. Then, the second rotary motor 361 rotates, driving the second pressure plate 32 to move towards the first pressure plate 31 to press the battery box tightly. Once the battery cell BT has completed charging and / or discharging in the pressurizing mechanism, the second rotary motor 361 rotates again, separating the second pressure plate 32 from the first pressure plate 31. Then, the second robotic arm 41 moves the battery box on the first pressure plate 31 to the support platform 20 at the station of the opening and closing mechanism 2. The first rotary electrode rotates, opening the packaging box 1 of the battery box, and the first robotic arm 40 removes the battery cell BT and places it in the second tray 6, then puts the packaging box 1 back into the first tray 5. This cycle is repeated to automatically perform charging and discharging operations on all battery cells BT.

[0072] The aforementioned automatic hot-press battery charging and discharging device is equipped with an openable packaging box 1 for the battery cell BT. In this way, when charging and discharging different types of battery cell BT during the battery capacity formation process, only the corresponding packaging box 1 needs to be configured according to the type of battery cell BT. There is no need to purchase fixtures and material trays separately for each type of battery, thereby significantly reducing equipment procurement and maintenance costs. In addition, it also reduces the need for parallel configuration of multiple devices, optimizes the production line layout, effectively saves factory space resources, and improves space utilization.

[0073] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. An automatic hot-press battery charging and discharging device, characterized in that, include: A packaging box for packaging battery cells, the packaging box including a box body and a box lid, the packaging box having notches corresponding to the electrodes of the battery cells; An opening and closing mechanism includes a support platform for supporting the packaging box, a gripper, and a first driver connected to the gripper. The gripper is used to grip or release the box lid, and the first driver is used to drive the gripper to move closer to or away from the support platform to open or close the box lid. A hot-pressing mechanism includes a first pressure plate, a second pressure plate, and an electrode connector; the first pressure plate and the second pressure plate are disposed opposite to each other and are movable relative to each other to clamp the packaging box containing the battery cell between the first pressure plate and the second pressure plate; the electrode connector is used to connect the battery cell located in the packaging box between the first pressure plate and the second pressure plate to a charging and discharging power source; at least one of the first pressure plate and the second pressure plate has a heating element; A transport mechanism is used to transport the packaging box and the battery cell to different workstations.

2. The automatic hot-press battery charging and discharging device according to claim 1, characterized in that, The first driver includes a first rotating motor and a support plate connected to the rotating shaft of the first rotating motor. The gripper includes a flip plate, the bottom of which is pivotally connected to the support platform, and the top of which is connected to the free end of the support plate. The support plate can drive the top of the flip plate to rotate relative to the bottom, so that the flip plate moves closer to or away from the support platform. A plurality of first suction holes based on negative pressure airflow are provided on the side of the flip plate near the support platform.

3. The automatic hot-press battery charging and discharging device according to claim 2, characterized in that, The support platform has an inclined surface that abuts against the body of the packaging box, and the inclined surface has a plurality of second suction holes based on the action of negative pressure airflow.

4. The automatic hot-press battery charging and discharging device according to claim 1, characterized in that, It also includes a first tray and a second tray. The first tray is provided with a plurality of first slots for fixing the packaging box. The second tray is provided with a plurality of second slots for fixing the battery cell. The opening and closing mechanism is located between the first tray and the second tray.

5. The automatic hot-press battery charging and discharging device according to claim 1, characterized in that, The hot pressing mechanism further includes a first mounting bracket and a second driver disposed on the first mounting bracket. The first pressure plate is disposed at one end of the first mounting bracket and is fixedly connected to the first mounting bracket. The second pressure plate is connected to the second driver through a guide rod. The second driver is used to drive the second pressure plate closer to or away from the first pressure plate through the guide rod.

6. The automatic hot-press battery charging and discharging device according to claim 5, characterized in that, A sliding sleeve is provided at the edge of the first pressure plate, and the guide rod passes through the sliding sleeve and is connected to the second driver.

7. The automatic hot-press battery charging and discharging device according to claim 5, characterized in that, The second driver includes a lead screw and a second rotary motor that is drivenly connected to the lead screw. The first mounting bracket is also provided with a slide rail and a sliding frame that is slidably connected to the slide rail. The sliding frame is also connected to a movable nut on the lead screw, and the guide rod is connected to the sliding frame.

8. The automatic hot-press battery charging and discharging device according to claim 5, characterized in that, The top of the first pressure plate is provided with a second mounting bracket connected thereto, and the second mounting bracket is also provided with a third mounting bracket slidably connected thereto and a third driver for driving the third mounting bracket to move horizontally. A probe holder is also provided above the first pressure plate. The probe holder is connected to the third mounting bracket via a lifting driver. The probe holder is provided with a conductive probe that serves as the electrode connector. The conductive probe is used to contact the electrode located in the notch at the top of the packaging box.

9. The automatic hot-press battery charging and discharging device according to claim 5, characterized in that, A limiting post is provided at the edge of the first pressure plate, and an enlarged part is provided at the top of the limiting post. The diameter of the enlarged part is larger than the diameter of the limiting post. A limiting hole is provided on the side of the packaging box. The limiting hole includes a first part and a second part that are interconnected. The diameter of the first part is equivalent to that of the enlarged part, and the diameter of the second part is equivalent to that of the limiting post. The first part is located below the second part.

10. The automatic hot-press battery charging and discharging device according to claim 1, characterized in that, The handling mechanism includes a frame and a first manipulator and a second manipulator mounted on the frame and capable of moving in three axes; the first manipulator is used to move the packaging box and the battery cell to or from the opening and closing mechanism; the second manipulator is used to move the packaging box containing the battery cell between the hot pressing mechanism and the opening and closing mechanism.

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