Stacking apparatus and battery storage system
By integrating venting positions and venting components into the stacking equipment, the problem of battery cells bulging due to gas residue was solved, enabling efficient stacking and storage of battery cells.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-30
AI Technical Summary
Gas residue generated during the liquid injection and formation process of battery cells can cause swelling problems, affecting storage and use.
Design a stacking device that integrates an exhaust port and an exhaust assembly. Before the battery cells are transferred to the shelf, the exhaust assembly presses against the exhaust valve of the battery cell to expel the internal gas and solve the problem of battery cell swelling.
It effectively alleviates the swelling of battery cells caused by residual gas, and improves the stacking efficiency and storage safety of battery cells.
Smart Images
Figure CN2025125249_30072026_PF_FP_ABST
Abstract
Description
Stacking equipment and battery storage systems Related applications
[0001] This application claims priority to Chinese patent application filed on January 27, 2025, with application number 202520176203X and entitled "Stacking Equipment and Battery Storage System", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of battery storage technology, and in particular to stacking equipment and battery storage systems. Background Technology
[0003] After electrolyte injection and formation, battery cells are typically transferred to shelves using stacking equipment. Traditional stacking equipment directly forks the battery cells onto the shelves. However, during the electrolyte injection and formation process, a large amount of gas is generated inside the battery cell. This gas remains inside the battery cell and can cause it to swell. Summary of the Invention
[0004] Based on this, this application provides a stacking device and a battery storage system that can open valves to vent battery cells, solving the problem of battery cells bulging due to residual internal gas.
[0005] In a first aspect, this application provides a stacking device for stacking formed battery cells. The stacking device includes:
[0006] The matrix, whose boundaries form a row of spaces;
[0007] A drive element, connected to the base in a transmission manner, controls the movement of the base along a first direction toward or away from the exhaust position; and
[0008] An exhaust assembly is mounted on the base and corresponds to the exhaust position;
[0009] When the formed battery cell is transported to the venting position, the venting assembly can move with the substrate towards the venting position under the drive of the drive component, pressing against the venting valve on the aligned battery cell, so that the gas inside the battery cell can be discharged through the venting valve.
[0010] The stacking equipment provided in this application, in addition to its basic function of stacking formed battery cells, further defines venting positions by setting a base and installing venting components corresponding to these positions on the base. These venting components, driven by a drive unit, move with the base towards the venting positions to pressurize the venting valves on the battery cells transported to the venting positions after formation. This forces the gas inside the battery cells out through the venting valves, alleviating the problem of bulging caused by residual gas inside the battery cells. After venting, the stacking equipment then stacks the battery cells onto shelves for convenient storage.
[0011] In some embodiments, the drive element is deformably connected to one end of the substrate along a first direction.
[0012] The stacking equipment provided in this application embodiment drives the base to move up and down through the deformation of the driving component along the first direction.
[0013] In some embodiments, the exhaust assembly includes a connector and a plurality of probes. The connector is mounted on the base and includes a plurality of arms, with each probe disposed at the end of each arm.
[0014] The stacking equipment provided in this application embodiment provides support for the probes by setting multiple support arms that are connected one-to-one with the probes, so as to facilitate the installation of the probes in a position that is aligned with the corresponding battery cell.
[0015] In some embodiments, each probe includes a needle head that opens the exhaust port of the exhaust valve when the needle head presses against the exhaust valve; the needle head is provided with a first through hole that communicates with the exhaust port.
[0016] The stacking equipment provided in this application embodiment allows the gas inside the battery cell to be discharged through the exhaust valve and not directly enter the workshop environment, but instead enter the needle head, facilitating the subsequent centralized collection of the discharged gas.
[0017] In some embodiments, the probe also includes a sealing portion surrounding the outer periphery of the probe head, which seals the vent hole when the probe head presses against the vent valve.
[0018] The stacking equipment provided in this application embodiment can prevent gas discharged from the battery cell from leaking from the contact point between the exhaust valve and the probe by setting a sealing part.
[0019] In some embodiments, the exhaust assembly further includes an exhaust pipe, one end of which is connected to a first through hole of a plurality of probes, and the other end is connected to the outside.
[0020] The stacking equipment provided in this application embodiment discharges the gas in the first through hole to the outside through the exhaust pipe, preventing the gas discharged from the battery cell from spreading in the workshop environment.
[0021] In some embodiments, the exhaust duct is configured with a sub-duct that is retractable in a first direction.
[0022] The stacking equipment provided in this application embodiment can adjust the length of the exhaust pipe through a retractable sub-pipe, thereby improving the installation flexibility of the exhaust pipe.
[0023] In some embodiments, the exhaust assembly also includes a vacuum pump disposed on the exhaust duct, the vacuum pump being used to generate negative pressure within the exhaust duct.
[0024] The stacking equipment provided in this application embodiment uses a vacuum pump to accelerate the discharge of gas emitted from individual battery cells to the outside through an exhaust pipe.
[0025] In some embodiments, the substrate includes:
[0026] Mounting section, used to mount probes;
[0027] Multiple support portions are arranged along the first direction on the side of the mounting member facing the probe, and together with the mounting portions define the exhaust position;
[0028] Multiple support sections are spaced apart from each other, and a clearance space is defined between two adjacent support sections to allow battery cells to enter and exit.
[0029] The stacking equipment provided in this application embodiment facilitates the installation of probes by providing an installation part, and the installation part cooperates with multiple support parts to define the exhaust position. Since the multiple support parts are arranged at intervals, the forks can pass between two adjacent support parts to transport battery cells to the exhaust position.
[0030] In some embodiments, the stacking equipment further includes:
[0031] A conveying device is used to move battery cells to an exhaust position. An exhaust assembly exhausts air from the battery cells on the conveying device and can remove the battery cells from the exhaust position.
[0032] The stacking equipment provided in this application embodiment involves a transport device moving individual battery cells to a venting position. The battery cells do not need to be unloaded; the venting assembly directly vents air from the battery cells on the transport device. After venting, the transport device then moves the battery cells to a shelf for storage. In the battery storage system, the stacking equipment is located on one side of the shelf to facilitate the direct placement of the vented battery cells onto the shelf, improving stacking efficiency.
[0033] In some embodiments, the handling device includes a traveling mechanism and forks, with individual battery cells placed on the forks; the traveling mechanism moves the forks to an exhaust assembly, which vents air from the battery cells on the forks.
[0034] In some embodiments, the stacking equipment further includes:
[0035] The positioning platform is located at the exhaust position. The positioning platform is used to support the forks and position the forks in the first direction.
[0036] The stacking equipment provided in this application embodiment supports and positions the forks by setting a positioning platform, thereby positioning the battery cells on the forks so that the exhaust assembly can accurately exhaust the battery cells on the forks.
[0037] Secondly, this application provides a battery storage system, including a shelf and a stacking device as described in any of the above embodiments. After formation, the battery cells are transported to the venting position, so that the venting component presses against the venting valve of the battery cell to vent, and then transported to the shelf for storage.
[0038] The aforementioned stacking equipment and battery storage system, in addition to their basic function of stacking formed battery cells, further define venting positions by setting up a substrate. Venting components corresponding to these positions are installed on the substrate. Driven by a driving component, these venting components move with the substrate towards the venting positions to pressurize the venting valves on the battery cells transported to these positions after formation. This forces the gas inside the battery cells out through the venting valves, mitigating the problem of bulging caused by residual gas inside the battery cells. After venting, the stacking equipment then stacks the battery cells onto shelves for convenient storage. Attached Figure Description
[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.
[0040] Figure 1 is a structural schematic diagram of a stacking device according to one or more embodiments.
[0041] Figure 2 is a schematic diagram of a battery cell in the vent valve closed state according to one or more embodiments.
[0042] Figure 3 is a schematic diagram of a battery cell in the state of the vent valve being open according to one or more embodiments.
[0043] Figure 4 is a structural schematic diagram of a transport device according to one or more embodiments.
[0044] Figure 5 is a partial structural schematic diagram of a stacking device according to one or more embodiments.
[0045] Figure 6 is a schematic diagram of the structure of a drive according to one or more embodiments.
[0046] Explanation of reference numerals in the attached drawings: 100, battery cell; 110, exhaust valve; 111, valve core; 112, valve body; 200, pallet; 1, base; 10, exhaust position; 11, mounting part; 12, support part; 2, drive component; 21, base; 22, linkage assembly; 221, first linkage; 222, second linkage; 223, third linkage; 224, fourth linkage; 23, top seat; 24, hydraulic rod; 3, exhaust assembly; 31, connector; 311, support arm; 32, probe; 321, needle head; 322, sealing part; 33, exhaust pipe; 331, sub-pipe; 34, vacuum pump; 4, handling device; 41, traveling mechanism; 42, forks; 43, mast; 44, drive assembly; 441, servo motor; 442, transmission belt; 443, pulley; 5, positioning platform; 6, shelf. Detailed Implementation
[0047] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0048] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0049] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0051] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0052] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0053] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.
[0054] A power battery typically consists of multiple individual cells. Liquid injection and formation are crucial processes in the manufacturing of these cells. A battery cell comprises a casing and the cells within it. The casing has injection holes through which liquid is injected into the cells. After injection, the casing is vacuum-sealed. Following this, the battery cell undergoes formation, and the formed cells are then transferred to shelves for storage. However, during the liquid injection and formation processes, a large amount of gas is generated inside the battery cell. This residual gas can cause the battery cell to swell.
[0055] Based on the above considerations, in order to solve the problem of battery cells swelling due to residual internal gas during storage after formation, the inventors of this application have conducted in-depth research and designed a stacking device. By integrating an exhaust position and an exhaust component into the stacking device, the battery cells are first transferred to the exhaust position before being transferred to the shelf. The exhaust component is used to press against the exhaust valve of the battery cell, allowing the gas inside the battery cell to be discharged through the exhaust valve. Then, the stacking device is used to transfer the battery cells to the shelf for storage, which solves the problem of battery cell swelling and facilitates the storage of battery cells on the shelf.
[0056] The battery cells disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system for such an electrical device can be constructed using battery cells and batteries disclosed in this application.
[0057] The power batteries disclosed in the embodiments of this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. Specifically, electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.
[0058] Referring to Figure 1, Figure 1 shows a schematic diagram of the structure of a stacking device according to some embodiments of this application. This application provides a stacking device for stacking formed battery cells 100. The stacking device includes a base 1, a drive member 2, and an exhaust assembly 3. The base 1 defines an exhaust position 10. The drive member 2 is driveably connected to the base 1 to controllably drive the base 1 to move towards or away from the exhaust position 10 along a first direction. The exhaust assembly 3 is disposed on the base 1 and corresponds to the exhaust position 10; wherein, when the formed battery cells 100 are transported to the exhaust position 10, the exhaust assembly 3, driven by the drive member 2, can follow the base 1 to move towards the exhaust position 10 until it presses against the exhaust valve 110 on the aligned battery cell 100, so that the gas inside the battery cell 100 is discharged through the exhaust valve 110. The first direction generally refers to the up-down direction, specifically the direction shown by arrow Z in Figure 1.
[0059] The stacking equipment proposed in this application, in addition to its basic function of stacking the formed battery cells 100, further defines an exhaust position 10 by setting a base 1, and provides an exhaust component 3 corresponding to the exhaust position 10 on the base 1. The exhaust component 3, driven by the drive component 2, moves along the base 1 towards the exhaust position 10 to press against the exhaust valve 110 on the battery cells 100 that have been transported to the exhaust position 10 after formation. This allows the gas inside the battery cells 100 to be discharged through the exhaust valve 110, alleviating the problem of bulging caused by residual gas inside the battery cells 100. After venting, the stacking equipment then stacks the battery cells 100 onto a shelf for convenient storage.
[0060] Please refer to Figures 2 and 3. Figure 2 shows a schematic diagram of the battery cell 100 provided in some embodiments of this application with the exhaust valve 110 closed; Figure 3 shows a schematic diagram of the battery cell 100 provided in some embodiments of this application with the exhaust valve 110 open. When the battery cell 100 is placed in the exhaust position 10, the end with the exhaust valve 110 faces upwards to facilitate the downward movement of the exhaust assembly 3 to press against the exhaust valve 110. Specifically, the exhaust valve 110 includes a valve body 112 and a valve core 111. In the closed state of the exhaust valve 110, the valve core 111 extends out of the valve body 112, and the exhaust assembly 3 opens the exhaust port of the exhaust valve 110 by pressing the valve core 111 into the valve body 112. The exhaust valve 110 is a conventional structure in the battery cell 100, and its specific structure and working principle will not be described in detail here.
[0061] In some embodiments, referring back to Figure 1, the stacking equipment also includes a handling device 4. The handling device 4 is used to transport the battery cell 100 to the venting position 10. The venting component 3 vents the battery cell 100 on the handling device 4 and can remove the battery cell 100 from the venting position 10. The handling device 4 transports the battery cell 100 to the venting position 10 and stops it there. The battery cell 100 does not need to be unloaded, and the venting component 3 directly vents the battery cell 100 on the handling device 4. After venting, the handling device 4 then transports the battery cell 100 to the shelf 6 for storage. In the battery storage system, the stacking equipment is located on one side of the shelf 6 to facilitate the direct placement of the vented battery cell 100 on the shelf 6, thereby improving stacking efficiency.
[0062] Optionally, as shown in Figure 4, which illustrates a schematic diagram of the conveying device 4 provided in some embodiments of this application, the conveying device 4 includes a traveling mechanism 41 and forks 42, with battery cells 100 placed on the forks 42. The traveling mechanism 41 moves the forks 42 to the exhaust assembly 3, which exhausts air from the battery cells 100 on the forks 42. Specifically, the traveling mechanism 41 may be a traveling trolley.
[0063] To facilitate the installation of the forks 42 on the traveling mechanism 41, the handling device 4 also includes a mast 43, which extends along a first direction and is disposed on the traveling mechanism 41. The forks 42 are disposed on the mast 43 and can slide along the first direction to lift the battery cell 100.
[0064] Furthermore, the handling device 4 also includes a drive assembly 44, which is drivenly connected to the forks 42 and is used to drive the forks 42 to slide up and down along the mast 43 and stop at the desired position.
[0065] In one embodiment, the drive assembly 44 includes a servo motor 441, a drive belt 442, and a pulley 443. The pulley 443 is disposed on the upper end of the mast 43, and the servo motor 441 is disposed on the traveling mechanism 41 and located on the side of the mast 43 opposite to the forks 42. The drive belt 442 is wound around the pulley 443, with one end connected to the output shaft of the servo motor 441 and the other end connected to the forks 42. When the servo motor 441 rotates, it drives the forks 42 to slide up and down along the mast 43 via the drive belt 443, thereby adjusting the position of the battery cells 100 on the forks 42 in the first direction.
[0066] Optionally, the handling device 4 can handle multiple battery cells 100 at a time, placing the multiple battery cells 100 in a pallet 200. The handling device 4 lifts the pallet 200 to handle the multiple battery cells 100, and stacks the battery cells 100 and the pallet 200 together on the shelf 6.
[0067] Specifically, the tray 200 can accommodate multiple rows and columns of battery cells 100, and the exhaust assembly 3 can simultaneously exhaust the multiple rows and columns of battery cells 100 by applying pressure.
[0068] Please refer to Figure 5, which shows a partial structural schematic diagram of the stacking equipment provided in some embodiments of this application. The stacking equipment also includes a positioning platform 5, which is disposed at the venting position 10. The positioning platform 5 is used to support the forks 42 and position the forks 42 in a first direction. By setting the positioning platform 5 to support and position the forks 42, the battery cells 100 on the forks 42 are positioned so that the venting assembly 3 can accurately vent air from the battery cells 100 on the forks 42.
[0069] The exhaust structure of the stacking equipment is described below with reference to Figures 5 and 6. Figure 6 shows a schematic diagram of the drive component provided in some embodiments of this application.
[0070] In some embodiments, the driving member 2 is deformably connected to one end of the base 1 along a first direction. In this way, the base 1 can be moved up and down by the deformation of the driving member 2 along the first direction.
[0071] Optionally, the driving component 2 includes a base 21, a connecting rod assembly 22, and a top seat 23. The upper end of the connecting rod assembly 22 is connected to the top seat 23, and the lower end of the connecting rod assembly 22 is connected to the base 21. The base 21 is fixed to the ground, and the top seat 23 is used to support and connect the base 1. The connecting rod assembly 22 is capable of extending and retracting along a first direction to drive the base 1 to move along the first direction.
[0072] The driving component 2 also includes a hydraulic rod 24, which drives the linkage assembly 22 to extend and retract in a first direction. Specifically, the linkage assembly 22 includes a first link 221, a second link 222, a third link 223, and a fourth link 224 connected in a scissor-like manner. The upper ends of the first link 221 and the second link 222 are rotatably connected to the top seat 23, and the first link 221 and the second link 222 are rotatably connected at their middle positions. The lower end of the first link 221 is rotatably connected to the upper end of the fourth link 224, and the lower end of the second link 222 is rotatably connected to the upper end of the third link 223. The third link 223 and the fourth link 224 are rotatably connected at their middle positions, and the lower ends of the third link 223 and the fourth link 224 are rotatably connected to the base 21. The fixed end of the hydraulic rod 24 is set on the base 21, and the driving end of the hydraulic rod 24 is connected to any one of the first link 221, the second link 222, the third link 223 and the fourth link 224. By pushing the connected link through the hydraulic rod 24, the link assembly 22 can be driven to extend and retract as a whole.
[0073] It should be noted that the driving component 2 is not limited to the above structure. The driving component 2 can also be a cylinder or a motor screw module, as long as it can drive the base 1 to move along the first direction.
[0074] Please refer to Figure 5. The exhaust assembly 3 includes a connector 31 and multiple probes 32. The connector 31 is mounted on the base 1 and includes multiple support arms 311. Each probe 32 is located at the end of each support arm 311. By providing multiple support arms 311, which are connected one-to-one with the probes 32, the probes 32 are supported, making it easy to install the probes 32 in a position that is aligned with the corresponding battery cell 100.
[0075] In some embodiments, as shown in Figure 2, each probe 32 includes a needle head 321. When the needle head 321 presses against the exhaust valve 110, it opens the exhaust port of the exhaust valve 110. The needle head 321 is provided with a first through hole, which communicates with the exhaust port of the exhaust valve 110. In this way, the gas inside the battery cell 100, after being discharged through the exhaust valve 110, will not directly enter the workshop environment, but will enter the needle head 321, facilitating the subsequent centralized collection of the discharged gas.
[0076] Correspondingly, a second through hole is provided inside the support arm 311, which communicates with the first through hole of the needle head 321 to further guide the gas discharged from the exhaust valve 110. One end of the multiple support arms 311 is connected, and the second through holes of the multiple support arms 311 are connected to the same outlet to facilitate the collection of gas discharged from the multiple second through holes through the same outlet. The other end of the multiple support arms 311 extends outward and is arranged sequentially along the arrangement direction of the multiple battery cells 100 so that the probe 32 at the end of the support arm 311 can be aligned with the battery cell 100.
[0077] Furthermore, the probe 32 also includes a sealing portion 322 surrounding the needle head 321. When the needle head 321 presses against the exhaust valve 110, the sealing portion 322 seals the exhaust port. In this way, gas discharged from the battery cell 100 can be prevented from leaking from the contact point between the exhaust valve 110 and the probe 32.
[0078] Optionally, the sealing part 322 is made of rubber or silicone to provide good sealing performance.
[0079] In some embodiments, the exhaust assembly 3 further includes an exhaust pipe 33, one end of which is connected to the first through holes of the plurality of probes 32, and the other end is connected to the outside. In this way, the gas in the first through holes is discharged to the outside through the exhaust pipe 33, preventing the gas discharged from the battery cell 100 from spreading in the workshop environment.
[0080] Specifically, the exhaust pipe 33 is connected to the second through hole of the support arm 311 so as to be connected to the probe 32 through the support arm 311.
[0081] In some embodiments, the exhaust pipe 33 is provided with a retractable sub-pipe 331 along a first direction. The retractable sub-pipe 331 allows for adjustment of the length of the exhaust pipe 33, thereby improving the installation flexibility of the exhaust pipe 33.
[0082] In some embodiments, the exhaust assembly 3 further includes a vacuum pump 34 disposed on the exhaust duct 33, the vacuum pump 34 being used to generate a negative pressure within the exhaust duct 33. By providing the vacuum pump 34, the gas discharged from the battery cell 100 is accelerated to be discharged outdoors through the exhaust duct 33.
[0083] Referring to Figure 5, in some embodiments, the base 1 includes a mounting portion 11 and multiple support portions 12. The mounting portion 11 is used to mount the probe 32. Multiple support portions 12 are disposed along a first direction on the side of the mounting portion 11 facing the probe 32, and together with the mounting portion 11, define the exhaust position 10. The multiple support portions 12 are spaced apart from each other, and a clearance space is formed between adjacent support portions 12 for the battery cell 100 to enter and exit. The mounting portion 11 facilitates the mounting of the probe, and the mounting portion 11, in cooperation with the multiple support portions 12, defines the exhaust position 10. Because the multiple support portions 12 are spaced apart from each other, the fork 42 can pass between adjacent support portions 12 to transport the battery cell 100 to the exhaust position 10.
[0084] Specifically, the mounting part 11 is configured as a square flat plate structure, and four support parts 12 are provided, with the four support parts 12 respectively located at the four corners of the mounting part 11. The forks 42 can move along the arrangement direction of the multiple battery cells 100, passing between two support parts 12 and entering above the positioning platform 5.
[0085] The stacking equipment provided in this application includes a handling device 4, a base 1, a driving member 2, and an exhaust assembly 3. The base 1 defines an exhaust position 10. The driving member 2 is driven to the base 1 to controllably drive the base 1 to move towards or away from the exhaust position 10 along a first direction. The exhaust assembly 3 is disposed on the base 1 and corresponds to the exhaust position 10. The exhaust assembly 3 includes a connector 31, a probe 32, and an exhaust pipe 33. The probe 32 is connected to the base 1 through the connector 31. The exhaust pipe 33 connects the probe 32 to the outside. Gas discharged from the battery cell 100 enters the exhaust pipe 33 through the probe 32 and is discharged to the outside through the exhaust pipe 33. When the handling device 4 transports the formed battery cell 100 to the exhaust position 10, the probe 32, driven by the driving member 2, moves with the base 1 towards the exhaust position 10 to press against the exhaust valve 110 on the aligned battery cell 100, so that the gas inside the battery cell 100 is discharged through the exhaust valve 110 and finally discharged to the outside through the exhaust pipe 33.
[0086] This application also provides a battery cell storage system, including a shelf 6 and a stacking device as described in any of the above embodiments. The formed battery cell 100 is transported to the exhaust position 10, so that the exhaust component 3 presses against the exhaust valve 110 of the battery cell 100 to exhaust the air, and is then transported to the shelf 6 for storage.
[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A stacking device for stacking formed battery cells, the stacking device comprising: The matrix, whose boundaries form a row of spaces; A drive element, driven by the base, is controlled to drive the base to move toward or away from the exhaust position along a first direction; and An exhaust assembly is disposed on the base and corresponds to the exhaust position; When the formed battery cell is transported to the venting position, the venting assembly can move with the substrate towards the venting position under the drive of the drive member, pressing against the venting valve on the aligned battery cell, so that the gas inside the battery cell can be discharged through the venting valve.
2. The stacking equipment according to claim 1, wherein, The drive element is deformably connected to one end of the base along a first direction.
3. The stacking equipment according to claim 1 or 2, wherein, The exhaust assembly includes a connector and multiple probes. The connector is mounted on the base and includes multiple arms. Each probe is disposed at the end of each arm.
4. The stacking equipment according to claim 3, wherein, Each of the probes includes a needle head, which opens the exhaust port of the exhaust valve when the needle head presses against the exhaust valve; the needle head is provided with a first through hole, which communicates with the exhaust port.
5. The stacking equipment according to claim 4, wherein, The probe also includes a sealing portion surrounding the outer periphery of the needle head, which seals the vent hole when the needle head presses against the vent valve.
6. The stacking equipment according to claim 4 or 5, wherein, The exhaust assembly also includes an exhaust pipe, one end of which is connected to the first through holes of the plurality of probes, and the other end is connected to the outside.
7. The stacking equipment according to claim 6, wherein, The exhaust pipe is equipped with a sub-pipe that is retractable along the first direction.
8. The stacking equipment according to claim 6 or 7, wherein, The exhaust assembly also includes a vacuum pump disposed on the exhaust pipe, the vacuum pump being used to generate negative pressure within the exhaust pipe.
9. The stacking equipment according to any one of claims 3-8, wherein, The matrix includes: Mounting section, used to mount the probe; Multiple support portions are disposed along the first direction on the side of the mounting member facing the probe, and together with the mounting portions define the exhaust position; The multiple support portions are spaced apart from each other, and a clearance space is defined between two adjacent support portions to allow the battery cell to enter and exit.
10. The stacking equipment according to any one of claims 1-9, wherein, The stacking equipment also includes: A transport device for transporting the battery cell to an exhaust position, wherein the exhaust assembly exhausts air from the battery cell on the transport device and is capable of removing the battery cell from the exhaust position.
11. The stacking equipment according to claim 10, wherein, The handling device includes a traveling mechanism and forks, with the battery cells placed on the forks; the traveling mechanism drives the forks to move to the exhaust assembly, and the exhaust assembly exhausts air from the battery cells on the forks.
12. The stacking equipment according to claim 11, wherein, The stacking equipment also includes: A positioning platform is provided at the exhaust position. The positioning platform is used to support the forks and position the forks in the first direction.
13. A battery storage system, wherein, The device includes a shelf and a stacking device as described in any one of claims 1-12. After formation, the battery cells are transported to the venting position, the venting assembly presses against the venting valve of the battery cell to vent, and then transported to the shelf for storage.