Electrode assembly process device

Abstract

This application relates to a battery cell manufacturing apparatus. The battery cell manufacturing apparatus includes: a support shaft, a rotating component, a smoothing component, and a limiting component. The rotating component is sleeved on the outer periphery of the support shaft and is rotatable relative to the support shaft. The smoothing component is spaced apart on a portion of the outer periphery of the rotating component and is rotatably connected to the support shaft. The limiting component is installed on one side of the support shaft and is used to limit the smoothing component.

Description

Technical Field

[0001] This application relates to the field of battery winding equipment technology, specifically to a battery cell manufacturing apparatus. Background Technology

[0002] The tab smoothing plate in a square winding machine is a core component in lithium-ion battery production, directly affecting the safety and performance of the battery cell. During the winding process, the tabs on the electrodes are subjected to centripetal force and rotational action as they pass through the electrode rollers, causing the tabs to fold outwards, resulting in surface bending, deformation, and unevenness. Therefore, a tab smoothing plate is needed to reduce the risk of tab bending or deformation. Improving the smoothing effect of the tab smoothing plate is a problem that needs further research. Utility Model Content

[0003] In view of this, this application provides a battery cell processing apparatus, wherein the smoothing component of the battery cell processing apparatus has a good smoothing effect on the tabs.

[0004] This application provides a battery cell manufacturing apparatus, which includes: a support shaft, a rotating component, a smoothing component, and a limiting component. The rotating component is sleeved on the outer periphery of the support shaft and can rotate relative to the support shaft. The smoothing component is spaced apart on a portion of the outer periphery of the rotating component and is rotatably connected to the support shaft. The limiting component is installed on one side of the support shaft and is used to limit the smoothing component.

[0005] Furthermore, the smoothing member has a first position and a second position relative to the support shaft, and the limiting member is used to restrict the smoothing member between the first position and the second position.

[0006] Further, the limiting member includes a first limiting portion and a second limiting portion, which are spaced apart on the side of the support shaft. When the smoothing member is in a first position relative to the support shaft, the first limiting portion abuts against the smoothing member; when the smoothing member is in a second position relative to the support shaft, the second limiting portion abuts against the smoothing member. Alternatively, there are two limiting members, which are spaced apart on the side of the support shaft. When the smoothing member is in the first position relative to the support shaft, one of the two limiting members abuts against the smoothing member; when the smoothing member is in the second position relative to the support shaft, the other of the two limiting members abuts against the smoothing member.

[0007] Furthermore, the limiting member includes a mounting portion, a first limiting portion, and a second limiting portion. The mounting portion has a mounting cavity for through which the support shaft passes. The first limiting portion and the second limiting portion are spaced apart on the side of the mounting portion away from the support shaft. When the smoothing member is in a first position relative to the support shaft, the first limiting portion abuts against a portion of the smoothing member. When the smoothing member is in a second position relative to the support shaft, the second limiting portion abuts against another portion of the smoothing member.

[0008] Furthermore, the smoothing component includes a smoothing portion and a connecting portion that are bent and connected together. The smoothing portion is spaced apart on a portion of the outer periphery of the rotating component. One end of the connecting portion is connected to the smoothing portion, and the other end is rotatably connected to the support shaft. When the smoothing component is in a first position relative to the support shaft, the first limiting portion abuts against the connecting portion. When the smoothing component is in a second position relative to the support shaft, the second limiting portion abuts against the connecting portion.

[0009] Furthermore, the smoothing part includes a first smoothing sub-part, a second smoothing sub-part, and a third smoothing sub-part connected in sequence. The first smoothing sub-part, the second smoothing sub-part, and the third smoothing sub-part are all arc-shaped structures. The arc-shaped opening of the first smoothing sub-part is opposite to the arc-shaped opening of the second smoothing sub-part, and the arc-shaped opening of the second smoothing sub-part is opposite to the arc-shaped opening of the third smoothing sub-part.

[0010] Furthermore, at least a portion of the smoothing portion overlaps with the support shaft, and at least a portion of the smoothing portion protrudes from the support shaft along its extending direction.

[0011] Furthermore, the cell processing apparatus also includes a threading member, which is sequentially threaded through the connecting portion and the limiting member to fix the relative position of the smoothing member and the limiting member.

[0012] Furthermore, the cell manufacturing apparatus also includes fasteners, and the mounting portion has a through groove that passes through the side of the mounting portion away from the first limiting portion. The fasteners are sequentially inserted through the through groove and the support shaft to install the limiting member at one end of the support shaft.

[0013] Furthermore, the outer wall of the first limiting part is an arc, and the range of the central angle β of the arc is: 80°≤β≤120°; the outer wall of the second limiting part is an arc, and the range of the central angle γ of the arc is: 80°≤γ≤120°.

[0014] During the installation of the battery cell processing apparatus provided in this application, the smoothing member is rotatably connected to the support shaft, allowing the relative position between the smoothing member and the electrode tab to be adjustable. The smoothing member has a certain degree of freedom, enabling the battery cell processing apparatus to adapt to electrode sheets of different types and thicknesses. The smoothing member applies a smoothing force to the electrode tab at a fitted angle, improving the smoothing effect. Furthermore, the limiting member can limit the smoothing member, giving it two extreme positions relative to the support shaft. In other words, the rotation angle of the smoothing member relative to the support shaft is within a certain range, preventing arbitrary rotation of the smoothing member relative to the support shaft and interference with the electrode tab, further improving the winding effect of the battery cell processing apparatus on the electrode sheets. In the battery cell manufacturing apparatus provided in this application, when the rotating member rotates relative to the support shaft, the rotating member is used to transport the electrode sheet. At the same time, one end of the electrode sheet with an electrode tab passes through the gap between the smoothing member and the rotating member. By adjusting the relative position of the smoothing member and the support shaft, the smoothing member can be made to fit the electrode tab. In other words, the electrode tab is squeezed by the smoothing member and the rotating member, which can prevent the electrode tab from folding over, so that the smoothing member has a better smoothing effect on the electrode tab, thereby alleviating the situation where the electrode tab folds outward and the surface of the electrode sheet is bent and uneven, and further improving the winding effect of the battery cell manufacturing apparatus on the electrode sheet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an energy storage system according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of an energy storage system according to another embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of an energy storage system according to another embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of a battery cell manufacturing apparatus according to an embodiment of this application;

[0020] Figure 5 This is a side view of the structure of the cell manufacturing apparatus according to the first embodiment of this application;

[0021] Figure 6 This is a structural side view of the cell manufacturing apparatus according to the second embodiment of this application;

[0022] Figure 7 This is a structural side view of the cell manufacturing apparatus according to the third embodiment of this application;

[0023] Figure 8 This is an exploded view of a portion of the structure of a battery cell manufacturing apparatus according to an embodiment of this application;

[0024] Figure 9 for Figure 6 A cross-sectional view along the AA direction;

[0025] Figure 10 This is a schematic diagram of the structure of the limiting member according to the first embodiment of this application;

[0026] Figure 11 This is a schematic diagram of the structure of the limiting member according to the second embodiment of this application;

[0027] Figure 12 This is a schematic diagram of the structure of a smoothing component according to an embodiment of this application;

[0028] Figure 13 This is a top view of a limiting member according to an embodiment of this application;

[0029] Figure 14 This is a side view of a limiting member according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Cell processing device, 110-Support shaft, 120-Rotating component, 130-Smoothing component, 131-Smoothing part, 132-Connecting part, 133-First smoothing sub-part, 134-Second smoothing sub-part, 135-Third smoothing sub-part, 140-Limiting component, 141-First limiting part, 142-Second limiting part, 143-Mounting part, 1431-Mounting cavity, 1432-Through slot, 150-Through component, 300-Energy storage system, 310-First power conversion device, 320-First user load, 330-Second user load, 340-Energy storage device, 350-High voltage cable, 360-Second power conversion device, 370-Photovoltaic-storage-charging station, 380-Automobile. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0034] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] The tab smoothing plate in a square winding machine is a core component in lithium-ion battery production, directly affecting the safety and performance of the battery cell. During the winding process, the tabs on the electrodes are subjected to centripetal force and rotational action as they pass through the electrode rollers, causing the tabs to fold outwards, resulting in surface bending, deformation, and unevenness. Therefore, a tab smoothing plate is needed to reduce the risk of tab bending or deformation. Common tab smoothing plates are fixed to the rollers with screws, and the plate is rotated by tightening or loosening the screws to achieve a smoothing effect. However, there is only one fixing screw; if the screw is too loose, the tab smoothing plate can rotate freely relative to the roller. Furthermore, the rotation angle of the tab smoothing plate relative to the roller cannot be limited; if the rotation angle is too large, it may interfere with the smoothing of the tabs. Therefore, how to improve the smoothing effect of the tab smoothing plate on the tabs is a problem that needs further research.

[0036] Because the energy we need is highly time- and space-dependent, in order to utilize energy rationally and improve energy efficiency, it is necessary to store one form of energy in the same way or by converting it into another, and then release it in a specific energy form for future applications. Currently, the main way to generate green electricity is to develop green energy sources such as photovoltaics and wind power to replace fossil fuels.

[0037] Currently, the generation of green electricity generally relies on solar, wind, and hydropower. However, wind and solar power are generally characterized by strong intermittency and large fluctuations, which can cause grid instability, insufficient power during peak demand periods, and excessive power during off-peak periods. Unstable voltage can also damage the power grid. Therefore, insufficient electricity demand or insufficient grid capacity may lead to the problem of "wind and solar curtailment." Solving these problems requires energy storage. This involves converting electrical energy into other forms of energy through physical or chemical means and storing it. When needed, this energy can be converted back into electrical energy and released. Simply put, energy storage is like a large "power bank," storing electrical energy when solar and wind power are abundant and releasing the stored electricity when needed.

[0038] Taking electrochemical energy storage as an example, this solution provides an energy storage device 340, which is applied to an energy storage system 300. The energy storage device 340 is equipped with a set of chemical batteries, which mainly use the chemical elements in the batteries as energy storage medium. The charging and discharging process is accompanied by the chemical reaction or change of the energy storage medium. Simply put, the electrical energy generated by wind and solar energy is stored in the chemical batteries. When the use of external electrical energy reaches its peak, the stored electricity is released for use, or transferred to places with a shortage of electricity for use.

[0039] Current energy storage applications are quite widespread, including generation-side energy storage, grid-side energy storage, and consumption-side energy storage. The corresponding energy storage devices 340 include:

[0040] (1) Large-scale energy storage power stations (including multiple prefabricated energy storage modules) applied to wind power and photovoltaic power stations can help renewable energy power generation meet grid connection requirements and improve the utilization rate of renewable energy. As a high-quality active / reactive power regulation power source on the power supply side, energy storage power stations can achieve load matching of power in time and space, enhance the absorption capacity of renewable energy, reduce instantaneous power changes, reduce the impact on the power grid, improve the absorption of new energy power generation, and are of great significance in power grid system backup, alleviating peak load power supply pressure and peak regulation and frequency regulation.

[0041] (2) The energy storage prefabricated cabin applied on the grid side mainly functions as peak regulation, frequency regulation and grid congestion relief. In terms of peak regulation, it can realize peak shaving and valley filling of electricity load, that is, charging the energy storage battery when the electricity load is low and releasing the stored electricity during the peak electricity load period, thereby achieving a balance between power production and consumption.

[0042] (3) Small energy storage cabinets applied to the electricity consumption side mainly function as self-consumption of electricity, peak-valley price arbitrage, capacity cost management, and improvement of power supply reliability. Depending on the application scenario, electricity consumption side energy storage can be divided into industrial and commercial energy storage cabinets, household energy storage devices 340, energy storage charging piles, etc., which are generally used in conjunction with distributed photovoltaics. Industrial and commercial users can use energy storage for peak-valley price arbitrage and capacity cost management. In the electricity market implementing peak-valley pricing, by charging the energy storage system 300 when the electricity price is low and discharging the energy storage system 300 when the electricity price is high, peak-valley price arbitrage can be achieved, reducing electricity costs. In addition, industrial enterprises subject to two-part tariffs can use the energy storage system 300 to store energy during off-peak hours and discharge during peak loads, thereby reducing peak power and the maximum demand declared, achieving the goal of reducing capacity electricity costs. Household photovoltaics with energy storage can improve the level of self-consumption of electricity. Due to high electricity prices and poor power supply stability, the demand for household photovoltaic installations is driven. Given that photovoltaic power generation occurs during the day, while user load is generally higher at night, configuring energy storage can better utilize photovoltaic power, improve self-consumption levels, and reduce electricity costs. Furthermore, energy storage is needed in areas such as communication base stations and data centers for backup power.

[0043] In some embodiments, see Figure 1 , Figure 1 This is a schematic diagram of the structure of an energy storage system 300 according to an embodiment of this application. Figure 1 The embodiments are illustrated using a home energy storage scenario in user-side energy storage as an example. The energy storage device 340 in this application is not limited to an energy storage box in a home energy storage scenario.

[0044] This application provides an energy storage system 300, which includes a first power conversion device 310 (photovoltaic panel), a first user load 320 (household lighting fixture), a second user load 330 (e.g., household appliances such as air conditioners), and the energy storage device 340 of this application. The energy storage device 340 is a small energy storage box that can be wall-mounted on an outdoor wall. However, the energy storage device 340 is not limited to wall mounting and can also be placed in a user's residence in other ways. Specifically, the photovoltaic panel can convert solar energy into electrical energy during periods of low electricity prices, and the energy storage device 340 is used to store this electrical energy and supply it to lighting fixtures and household appliances during peak electricity prices, or to provide power during power outages / power failures.

[0045] Optionally, the first power conversion device 310 may include, but is not limited to, a photovoltaic panel, and the first power conversion device 310 can convert at least one of solar energy, light energy, wind energy, thermal energy, tidal energy, biomass energy and mechanical energy into electrical energy.

[0046] In some embodiments, see Figure 2 , Figure 2This is a schematic diagram of the structure of an energy storage system 300 according to another embodiment of this application, and this application Figure 2 The embodiments are illustrated using a shared energy storage scenario on the power generation / distribution side as an example. The energy storage device 340 in this application is not limited to a prefabricated energy storage module in a power generation / distribution energy storage scenario.

[0047] This application provides an energy storage system 300, which includes: a high-voltage cable 350, a first power conversion device 310, a second power conversion device 360, and an energy storage device 340 provided in this application. In some embodiments of the power generation scenario, the second power conversion device 360 ​​can be a wind power conversion device. Since the electricity generated by wind power conversion is volatile, random, and intermittent, the unstable electricity output by the wind power conversion device can be stored in the energy storage device 340 through grid connection. The energy storage device 340 is connected to the high-voltage cable and outputs smooth electricity to the power consumption side of the distribution network, realizing peak shaving and frequency regulation, and stable grid operation; or, wind power... The conversion device is always connected to the high-voltage cable. Under normal power generation conditions, the power output of the wind power conversion device is supplied to the power consumption side of the distribution network through the high-voltage cable. When the current power load is low and the wind power conversion device generates excess power, the excess power is first stored in the energy storage device 340 to reduce wind and solar curtailment rates and improve the problem of new energy power generation consumption. When the power load is high, the power grid issues an instruction to transmit the power stored in the energy storage device 340 together with the high-voltage cable 350 in grid-connected mode to supply power to the power consumption side. This provides the power grid with various services such as peak shaving, frequency regulation, and backup, giving full play to the peak shaving role of the power grid, promoting peak shaving and valley filling, and alleviating the power supply pressure of the power grid.

[0048] In some embodiments on the distribution network side, the first power conversion device 310 can be a photovoltaic panel, and the energy storage device 340 is connected to the high-voltage cable 350 and installed downstream of the high-voltage cable 350 and between the user load. The electrical energy output by the photovoltaic power conversion device is stored in the energy storage device 340, which can respond in a timely manner to act as a backup power source when the power grid / distribution network fails; or, it can provide power supply support to alleviate line congestion when the high-voltage cable 350 transmission line is blocked, and to delay the economic pressure caused by the expansion of the power grid / distribution capacity when the power grid is planned to be expanded.

[0049] Optionally, the first power conversion device 310 may include, but is not limited to, a wind power conversion device, and the second power conversion device 360 ​​may include, but is not limited to, a photovoltaic panel. The first power conversion device 310 and the second power conversion device 360 ​​can convert at least one of solar energy, light energy, wind energy, thermal energy, tidal energy, biomass energy, and mechanical energy into electrical energy.

[0050] In some embodiments, see Figure 3 , Figure 3This is a schematic diagram of the structure of an energy storage system 300 according to another embodiment of this application, and this application Figure 3 The embodiments are illustrated using an industrial and commercial energy storage scenario as an example. The energy storage device 340 in this application is not limited to an energy storage cabinet in an industrial and commercial energy storage scenario.

[0051] This application provides an energy storage system 300, which includes: an energy storage device 340, a high-voltage cable 350, a factory equipped with a first power conversion device 310, a photovoltaic-energy storage-charging station 370 equipped with a second power conversion device 360, and a vehicle 380. In some embodiments of industrial and commercial scenarios, the first power conversion device 310 can be a photovoltaic panel, which converts solar energy into electrical energy and stores it in the energy storage device 340 in the factory. In the event of a power grid failure, the energy storage device 340 provides power to ensure the safe and stable operation of the factory without interruption. Alternatively, when the factory's power load is high, the power grid issues an instruction to transmit the electricity stored in the energy storage device 340 in conjunction with the high-voltage cable 350 in a grid-connected mode to supply the factory with electricity, providing various services such as peak shaving / frequency regulation and backup for the power grid operation. In addition, the second power conversion device 360 ​​can also be a photovoltaic panel, which converts solar energy into electrical energy and stores it in the energy storage device 340 of the photovoltaic-energy storage-charging station 370, directly charging the vehicle 380 through the photovoltaic-energy storage-charging station 370, which is fast and convenient.

[0052] Optionally, the first power conversion device 310 and the second power conversion device 360 ​​may include, but are not limited to, a photovoltaic panel. The first power conversion device 310 can convert at least one of solar energy, light energy, wind energy, thermal energy, tidal energy, biomass energy, and mechanical energy into electrical energy.

[0053] Optionally, the energy storage device 340 may include, but is not limited to, energy storage applications such as energy storage power stations, hydropower / thermal / wind power generation systems, solar power generation systems, mobile power systems, smart home systems, or temporary power supply systems, and may also be applied in multiple fields such as data centers, military equipment, aerospace, charging piles, and electric vehicles.

[0054] Optionally, the energy storage device 340 may include, but is not limited to, single-cell batteries, or battery modules, battery packs, battery clusters, power banks, energy storage cabinets / prefabricated energy storage compartments, and other battery integrated systems composed of single-cell batteries. The actual application form of the energy storage device 340 provided in this application embodiment may be, but is not limited to, the listed products, and may also be other application forms. This application embodiment does not strictly limit the application form of the energy storage device 340. This application embodiment only uses a multi-cell battery of the energy storage device 340 as an example for illustration.

[0055] Optionally, the individual battery cells constituting the energy storage device 340 can be, but are not limited to, at least one of cylindrical, prismatic, prismatic, or other shaped batteries.

[0056] Optionally, the energy storage device 340 may include, but is not limited to, energy storage applications such as energy storage power stations, hydropower / thermal / wind power generation systems, solar power generation systems, mobile power systems, smart home systems, or temporary power supply systems, and may also be applied in multiple fields such as data centers, military equipment, aerospace, charging piles, and electric vehicles.

[0057] Optionally, the energy storage device 340 may include battery modules, battery packs, battery clusters, mobile power supplies, energy storage cabinets / prefabricated energy storage compartments, and other battery integrated systems composed of individual batteries. The actual application form of the energy storage device 340 provided in this application embodiment may be, but is not limited to, the listed products, and may also be other application forms. This application embodiment does not strictly limit the application form of the energy storage device 340.

[0058] Alternatively, the single cell is not limited to at least one of cylindrical, square, prismatic, or other shaped cells.

[0059] Optionally, the single cell can be a rechargeable battery, which refers to a single cell that can be recharged after discharge to activate the active materials and continue to be used. The single cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and this application does not specifically limit it.

[0060] Please see Figures 4 to 9 This application provides a battery cell manufacturing apparatus 100, which includes: a support shaft 110, a rotating member 120, a smoothing member 130, and a limiting member 140. The rotating member 120 is sleeved on the outer periphery of the support shaft 110 and can rotate relative to the support shaft 110. The smoothing member 130 is spaced apart on a portion of the outer periphery of the rotating member 120 and is rotatably connected to the support shaft 110. The limiting member 140 is installed at one end of the support shaft 110 and is used to limit the smoothing member 130.

[0061] Optionally, the cell processing apparatus 100 is a cell winding apparatus. The cell processing apparatus 100 is used to wind electrode sheets. The cell processing apparatus 100 also includes a fixed base (not shown in the figure). The support shaft 110 is fixed on the fixed base. When the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 is used to transport the electrode sheets. The end of the electrode sheet with the tab extends into the gap between the rotating member 120 and the smoothing member 130, so that the smoothing member 130 smooths the tab, which facilitates the winding of the electrode sheet.

[0062] Optionally, the rotating member 120 can rotate relative to the support shaft 110. This can be achieved by providing at least one of the following: a sliding bearing, a rolling bearing, an oil-impregnated bearing, an air bearing, or a magnetic levitation bearing between the rotating member 120 and the support shaft 110. The manner in which the rotating member 120 rotates relative to the support shaft 110 is not restricted.

[0063] Understandably, the smoothing member 130 is spaced apart on a portion of the outer periphery of the rotating member 120, and there is a gap between the smoothing member 130 and the rotating member 120 to facilitate the electrode sheet passing through the gap, and the smoothing member 130 can contact the electrode tab and smooth the electrode tab.

[0064] Understandably, the smoothing member 130 is rotatably connected to the support shaft 110, meaning the position of the smoothing member 130 relative to the support shaft 110 is adjustable. Specifically, during the installation of the cell processing apparatus 100, the relative position of the smoothing member 130 and the support shaft 110 can be adjusted by the rotatable connection between the smoothing member 130 and the support shaft 110. Furthermore, the relative position of the smoothing member 130 and the support shaft 110 is fixed by the limiting member 140. During the use of the cell processing apparatus 100, when the rotating member 120 is used to transport electrode sheets, the position of the smoothing member 130 relative to the support shaft 110 is fixed.

[0065] Understandably, the limiting member 140 and the smoothing member 130 are disposed at the same end of the support shaft 110, with the limiting member 140 disposed close to the smoothing member 130.

[0066] During the installation of the battery cell processing apparatus 100 provided in this embodiment, the smoothing member 130 is rotatably connected to the support shaft 110, so that the relative position between the smoothing member 130 and the electrode tab is adjustable. The smoothing member 130 has a certain degree of freedom, so that the battery cell processing apparatus 100 can adapt to electrode sheets of different types and thicknesses, and the smoothing member 130 applies a smoothing force to the electrode tab at a fitting angle, improving the smoothing effect on the electrode tab. Furthermore, the limiting member 140 can limit the smoothing member 130, so that the smoothing member 130 has two extreme positions relative to the support shaft 110. In other words, the rotation angle of the smoothing member 130 relative to the support shaft 110 is within a certain range, which can prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and interfering with the electrode tab, further improving the winding effect of the battery cell processing apparatus 100 on the electrode sheet. In the battery cell processing apparatus 100 provided in this embodiment, when the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 is used to transport the electrode sheet. At the same time, one end of the electrode sheet with an electrode tab passes through the gap between the smoothing member 130 and the rotating member 120. By adjusting the relative position of the smoothing member 130 and the support shaft 110, the smoothing member 130 can be made to fit the electrode tab. In other words, the electrode tab is squeezed by the smoothing member 130 and the rotating member 120, which can prevent the electrode tab from folding over, so that the smoothing member 130 has a better smoothing effect on the electrode tab, thereby alleviating the situation where the electrode tab folds outward and the surface of the electrode sheet is bent and uneven, and further improving the winding effect of the battery cell processing apparatus 100 on the electrode sheet.

[0067] Understandably, during the installation of the cell manufacturing apparatus 100, when the smoothing member 130 rotates relative to the support shaft 110, the limiting member 140 can restrict the rotation angle of the smoothing member 130 to prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110, thereby preventing the smoothing member 130 from interfering with the electrode tab. When the smoothing member 130 is at its limit position relative to the support shaft 110, the limiting member 140 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to rotate relative to the support shaft 110.

[0068] In some embodiments, the smoothing member 130 has a first position and a second position relative to the support shaft 110, and the limiting member 140 is used to limit the smoothing member 130 between the first position and the second position.

[0069] Understandably, specifically, during the installation of the cell processing apparatus 100, the smoothing member 130 can be rotatably connected to the support shaft 110 to adjust the smoothing member 130 to a first position, a second position, or between the first and second positions, and to fix the smoothing member 130 in the first position, the second position, or between the first and second positions. During the use of the cell processing apparatus 100, when the rotating member 120 is used to transport electrode sheets, the position of the smoothing member 130 relative to the support shaft 110 is fixed, and the smoothing member 130 is fixed in the first position, the second position, or between the first and second positions.

[0070] Understandably, in Figure 5 In this embodiment, the smoothing member 130 is in the first position, in Figure 4 Implementation Examples and Figure 6 In this embodiment, the smoothing member 130 is located between the first position and the second position. Figure 7 In this embodiment, the smoothing element 130 is in the second position.

[0071] Understandably, the first position and the second position are the two extreme positions that the smoothing member 130 can reach relative to the support shaft 110. That is, under the action of the limiting member 140, the angle of rotation of the smoothing member 130 relative to the support shaft 110 is limited, so as to prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and affecting the smoothing effect of the tab.

[0072] In this embodiment, the smoothing member 130 has a first position and a second position relative to the support shaft 110. Under the action of the limiting member 140, the smoothing member 130 can only be fixed at the first position, or the second position, or between the first position and the second position. In other words, the rotation angle of the smoothing member 130 relative to the support shaft 110 is within a certain range, which can prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and interfering with the electrode tab, and further improve the winding effect of the cell process device 100 on the electrode sheet.

[0073] Understandably, when the smoothing member 130 is in the first position relative to the support shaft 110, the limiting member 140 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the second position; similarly, when the smoothing member 130 is in the second position relative to the support shaft 110, the limiting member 140 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the first position.

[0074] Please see also Figure 10In some embodiments, the limiting member 140 includes a first limiting portion 141 and a second limiting portion 142. The first limiting portion 141 and the second limiting portion 142 are spaced apart on the side of the support shaft 110. When the smoothing member 130 is in a first position relative to the support shaft 110, the first limiting portion 141 abuts against the smoothing member 130. When the smoothing member 130 is in a second position relative to the support shaft 110, the second limiting portion 142 abuts against the smoothing member 130.

[0075] Optionally, in some embodiments, the first limiting part 141 and the second limiting part 142 are directly disposed on the side of the support shaft 110; in other embodiments, the limiting member 140 further includes a mounting part 143, the first limiting part 141 and the second limiting part 142 are disposed on the mounting part 143 and disposed on the side of the support shaft 110 through the mounting part 143, and the first limiting part 141, the second limiting part 142 and the mounting part 143 are an integral structure.

[0076] In this embodiment, the first limiting part 141 and the second limiting part 142 are spaced apart on the side of the support shaft 110. The space enclosed by the first limiting part 141 and the second limiting part 142 is used to arrange at least a portion of the structure of the smoothing member 130. When the smoothing member 130 rotates relative to the support shaft 110, at least a portion of the structure of the smoothing member 130 rotates within the space enclosed by the first limiting part 141 and the second limiting part 142, so that the smoothing member 130 moves between the first position and the second position. When the smoothing member 130 is in the first position relative to the support shaft 110, the first limiting part 141 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the second position; similarly, when the smoothing member 130 is in the second position relative to the support shaft 110, the second limiting part 142 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the first position. The first limiting part 141 and the second limiting part 142 cooperate with each other to limit the rotation angle of the smoothing member 130 relative to the support shaft 110, so that the smoothing member 130 has a certain degree of freedom to improve the smoothing effect on the electrode tab, and can also avoid the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and interfering with the electrode tab, thereby enabling the cell process device 100 to have a better winding effect on the electrode sheet.

[0077] In other embodiments, there are two limiting members 140, which are spaced apart on the side of the support shaft 110. When the smoothing member 130 is in a first position relative to the support shaft 110, one of the two limiting members 140 abuts against the smoothing member 130; when the smoothing member 130 is in a second position relative to the support shaft 110, the other of the two limiting members 140 abuts against the smoothing member 130.

[0078] In this embodiment, two limiting members 140 are spaced apart on the side of the support shaft 110, and the space enclosed by the two limiting members 140 is used to arrange at least a portion of the structure of the smoothing member 130. When the smoothing member 130 rotates relative to the support shaft 110, at least a portion of the structure of the smoothing member 130 rotates within the space enclosed by the two limiting members 140, so that the smoothing member 130 moves between the first position and the second position. When the smoothing member 130 is in the first position relative to the support shaft 110, one of the two limiting members 140 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the second position; similarly, when the smoothing member 130 is in the second position relative to the support shaft 110, the other of the two limiting members 140 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move in a direction away from the first position. The two limiting members 140 cooperate with each other to restrict the rotation angle of the smoothing member 130 relative to the support shaft 110, so that the smoothing member 130 has a certain degree of freedom to improve the smoothing effect on the electrode tab, while preventing the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and interfering with the electrode tab, thereby enabling the cell process device 100 to have a better winding effect on the electrode sheet.

[0079] In some embodiments, when the smoothing member 130 switches from the first position to the second position, the range of the angle α that the smoothing member 130 can rotate relative to the support shaft 110 is: 5°≤α≤20°.

[0080] Specifically, the angle α that the smoothing member 130 can rotate relative to the support shaft 110 can be, but is not limited to, 5°, 6°, 7°, 8°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19° and 20°.

[0081] In this embodiment, when the angle α at which the smoothing member 130 can rotate relative to the support shaft 110 satisfies the range of 5°≤α≤20°, the angle at which the smoothing member 130 can rotate relative to the support shaft 110 is within a reasonable range. On the one hand, the smoothing member 130 can rotate a certain angle relative to the support shaft 110 so that when the electrode passes through the gap between the smoothing member 130 and the support shaft 110, the smoothing member 130 can adjust its relative position to the support shaft 110 to compress the electrode tab of the electrode and improve the smoothing effect on the electrode tab. On the other hand, it can avoid the electrode tab from folding due to an excessively large rotation angle of the smoothing member 130 relative to the support shaft 110. The smoothing member 130 of the cell processing device 100 has a good smoothing effect on the electrode tab, thereby making the wound electrode sheet have good flatness. When the smoothing member 130 can rotate at an excessively large angle relative to the support shaft 110, it may interfere with the electrode tab during rotation, causing the tab to fold and weakening the smoothing effect. Consequently, the electrode sheet wound by the cell processing device 100 will not be flat enough. When the smoothing member 130 can rotate at an excessively small angle relative to the support shaft 110, its rotational freedom is limited. When the electrode sheet passes through the gap between the support shaft 110 and the smoothing member 130, the adjustable angle of the smoothing member 130 is limited, resulting in a poor smoothing effect on the electrode tab.

[0082] Understandably, the smoothing member 130 has a midpoint relative to the support shaft 110, the midpoint being between the first position and the second position.

[0083] Specifically, when the smoothing member 130 can rotate at an angle α relative to the support shaft 110 of 20°, the smoothing member 130 can rotate 10° counterclockwise to switch from the intermediate position to the first position; the smoothing member 130 can rotate 10° clockwise to switch from the intermediate position to the second position.

[0084] Please see also Figure 11In some embodiments, the limiting member 140 includes a mounting portion 143, a first limiting portion 141, and a second limiting portion 142. The mounting portion 143 has a mounting cavity 1431 for through which the support shaft 110 passes. The first limiting portion 141 and the second limiting portion 142 are spaced apart on the side of the mounting portion 143 away from the support shaft 110. When the smoothing member 130 is in a first position relative to the support shaft 110, the first limiting portion 141 abuts against a portion of the smoothing member 130. When the smoothing member 130 is in a second position relative to the support shaft 110, the second limiting portion 142 abuts against another portion of the smoothing member 130.

[0085] Understandably, when the smoothing member 130 is in the first position relative to the support shaft 110, the first limiting part 141 abuts against the side of the smoothing member 130 near the first limiting part 141, and there is a gap between the side of the smoothing member 130 near the second limiting part 142 and the second limiting part 142.

[0086] Understandably, when the smoothing member 130 is in the second position relative to the support shaft 110, the second limiting part 142 abuts against the side of the smoothing member 130 near the second limiting part 142, and there is a gap between the side of the smoothing member 130 near the first limiting part 141 and the first limiting part 141.

[0087] In this embodiment, the mounting cavity 1431 of the mounting portion 143 of the limiting member 140 is used to pass through the support shaft 110 to fix the limiting member 140 onto the support shaft 110. During the installation process of the cell processing apparatus 100, at least a portion of the smoothing member 130 rotates within the space enclosed by the first limiting portion 141 and the second limiting portion 142, thereby switching the smoothing member 130 between a first position and a second position. When the smoothing member 130 is in the first position relative to the support shaft 110, the first limiting portion 141 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move away from the second position; similarly, when the smoothing member 130 is in the second position relative to the support shaft 110, the second limiting portion 142 abuts against the smoothing member 130 to prevent the smoothing member 130 from continuing to move away from the first position. The first limiting part 141 and the second limiting part 142 cooperate with each other to limit the rotation angle of the smoothing member 130 relative to the support shaft 110, so that the smoothing member 130 has a certain degree of freedom, so that the cell processing device 100 can adapt to electrode sheets of different thicknesses and types, and improve the smoothing effect on the electrode tabs; in addition, it can also prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and interfering with the electrode tabs, thereby enabling the cell processing device 100 to have a better winding effect on the electrode sheets.

[0088] Please see also Figure 12 In some embodiments, the smoothing member 130 includes a smoothing portion 131 and a connecting portion 132 that are bent and connected together. The smoothing portion 131 is spaced apart on a portion of the outer periphery of the rotating member 120. One end of the connecting portion 132 is connected to the smoothing portion 131, and the other end is rotatably connected to the support shaft 110. When the smoothing member 130 is in a first position relative to the support shaft 110, the first limiting portion 141 abuts against the connecting portion 132. When the smoothing member 130 is in a second position relative to the support shaft 110, the second limiting portion 142 abuts against the connecting portion 132.

[0089] Understandably, the smoothing portion 131 is spaced apart on a portion of the outer periphery of the rotating member 120. When the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 is used to transport the electrode sheet. The electrode tab of the electrode sheet passes through the gap between the smoothing portion 131 and the rotating member 120. The electrode tab is squeezed by the smoothing portion 131 and the rotating member 120 to achieve a smoothing effect.

[0090] Understandably, when the smoothing member 130 is in the first position relative to the support shaft 110, the first limiting portion 141 abuts against the side of the connecting portion 132 near the first limiting portion 141.

[0091] Understandably, when the smoothing member 130 is in the second position relative to the support shaft 110, the second limiting portion 142 abuts against the side of the connecting portion 132 near the second limiting portion 142.

[0092] In this embodiment, the smoothing component 130 includes a smoothing portion 131 and a connecting portion 132 that are bent and connected together. The smoothing portion 131 is rotatably connected to the support shaft 110 through the connecting portion 132. During the assembly process of the cell manufacturing apparatus 100, one end of the connecting portion 132 can rotate within the space enclosed by the first limiting portion 141 and the second limiting portion 142 to drive the smoothing portion 131 to rotate relative to the support shaft 110, thereby adjusting the relative position of the smoothing portion 131 and the support shaft 110, that is, adjusting the relative position of the smoothing portion 131 and the rotating component 120, so that the smoothing component 130 is fixed relative to the support shaft 110 at the first position, or the second position, or between the first position and the second position, to adapt to the position of the electrode sheet and have a better smoothing effect on the electrode tab. When the smoothing member 130 is in the first position relative to the support shaft 110, the first limiting part 141 abuts against the connecting part 132 to prevent the connecting part 132 and the smoothing part 131 from continuing to rotate in a direction away from the second position. Similarly, when the smoothing member 130 is in the second position relative to the support shaft 110, the second limiting part 142 abuts against the connecting part 132 to prevent the connecting part 132 and the smoothing part 131 from continuing to rotate in a direction away from the first position. By limiting the position of the connecting part 132, the first limiting part 141 and the second limiting part 142 limit the rotation angle of the smoothing part 131 relative to the support shaft 110, preventing the smoothing part 131 from rotating arbitrarily relative to the support shaft 110 and interfering with the tab, so that the smoothing part 131 has a better smoothing effect on the tab, and the cell processing device 100 has a better winding effect on the electrode sheet. Specifically, when the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 is used to transport the electrode sheet. The electrode tab of the electrode sheet passes through the gap between the smoothing part 131 and the rotating member 120. By adjusting the relative position of the smoothing member 130 and the support shaft 110, the smoothing part 131 of the smoothing member 130 is made to fit the electrode tab. The electrode tab is squeezed by the smoothing part 131 and the rotating member 120 to achieve a better smoothing effect.

[0093] In some embodiments, the smoothing portion 131 includes a first smoothing sub-portion 133, a second smoothing sub-portion 134, and a third smoothing sub-portion 135 connected in sequence. The first smoothing sub-portion 133, the second smoothing sub-portion 134, and the third smoothing sub-portion 135 are all arc-shaped structures. The arc-shaped opening of the first smoothing sub-portion 133 is disposed opposite to the arc-shaped opening of the second smoothing sub-portion 134, and the arc-shaped opening of the second smoothing sub-portion 134 is disposed opposite to the arc-shaped opening of the third smoothing sub-portion 135.

[0094] In this embodiment, the arc-shaped opening of the first smoothing sub-part 133 is positioned opposite to the arc-shaped opening of the second smoothing sub-part 134, and the arc-shaped opening of the second smoothing sub-part 134 is positioned opposite to the arc-shaped opening of the third smoothing sub-part 135. The first smoothing sub-part 133, the second smoothing sub-part 134, and the third smoothing sub-part 135 form a continuous bending path of "positive arc-reverse arc-positive arc". When the electrode tab passes through the gap between the smoothing part 131 and the rotating member 120, the electrode tab is contacted and guided by arc-shaped surfaces in different directions in sequence. Through the alternating action of multiple directions, the smoothing part 131 has a better smoothing effect on the electrode tab, avoiding the limitation that a single-direction arc can only handle wrinkles at a specific angle. In addition, compared with a right-angle or planar structure, the arc-shaped structure has a larger contact area and lower pressure when in contact with the electrode tab, which can avoid excessive local stress causing the electrode tab to stretch, tear, or deform, and reduce damage to the electrode tab. The smoothing component 130 of this embodiment has good performance when applied to the cell processing apparatus 100.

[0095] In some embodiments, at least a portion of the smoothing portion 131 overlaps with the support shaft 110, and at least a portion of the smoothing portion 131 protrudes from the support shaft 110 along the extending direction of the support shaft 110.

[0096] In this embodiment, at least a portion of the smoothing portion 131 overlaps with the support shaft 110, and at least a portion of the smoothing portion 131 protrudes from the support shaft 110 along the extending direction of the support shaft 110, so as to guide the electrode sheet into the gap between the smoothing portion 131 and the support shaft 110, so as to facilitate the smoothing portion 131 to smooth the electrode tab and improve the smoothing effect of the smoothing member 130 on the electrode tab.

[0097] In some embodiments, the cell processing apparatus 100 further includes a through-through member 150, which is sequentially disposed on the connecting portion 132 and the limiting member 140 to fix the relative position of the smoothing member 130 and the limiting member 140.

[0098] Understandably, when the relative positions of the smoothing member 130 and the limiting member 140 are fixed, the relative positions of the smoothing member 130 and the support shaft 110 are also fixed.

[0099] During the installation of the cell process apparatus 100 in this embodiment, the insert 150 is sequentially inserted through the connecting part 132 and the limiting part 140. On the one hand, the insert 150 realizes the connection between the connecting part 132 and the limiting part 140, so as to install the smoothing part 130 on the support shaft 110. On the other hand, the through-feed member 150 fixes the relative position of the smoothing member 130 and the limiting member 140, so that the relative position of the smoothing member 130 and the support shaft 110 is fixed, that is, the smoothing member 130 is fixed in the first position, or the second position, or between the first position and the second position, so that during the operation of the cell process apparatus 100, when the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 is used to transport the electrode sheet, which can prevent the smoothing member 130 from rotating arbitrarily relative to the support shaft 110 and bending the electrode tab, and the smoothing part 131 always fits against the electrode tab and smooths the electrode tab.

[0100] In some other embodiments, the cell processing apparatus 100 further includes fasteners, and the mounting portion 143 also has a through groove 1432 that passes through the mounting portion 143 on the side opposite to the first limiting portion 141. The fasteners are sequentially inserted through the through groove 1432 and the support shaft 110 to install the limiting member 140 at one end of the support shaft 110.

[0101] Understandably, there are multiple through-slots 1432, which are arranged around the periphery of the mounting portion 143. There are also multiple fasteners, each of which passes through one through-slot 1432. Different fasteners pass through different through-slots 1432, and the fasteners are arranged in a one-to-one correspondence with the through-slots 1432.

[0102] Understandably, the fasteners are screws, bolts, rivets, etc., which are not shown in the figure, and the structure of the fasteners is not limited here.

[0103] Understandably, the fasteners are sequentially inserted through the limiting member 140 and the support shaft 110 to fix the relative position of the limiting member 140 and the support shaft 110.

[0104] In this embodiment, the fasteners are sequentially inserted through the through-slot 1432 and the support shaft 110 to fix the limiting member 140 to one end of the support shaft 110. In the cell processing apparatus 100, the support shaft 110 and the limiting member 140 are fixed on the fixed base. When the rotating member 120 rotates relative to the support shaft 110, the rotating member 120 transmits the electrode sheet and causes the electrode sheet to pass through the gap between the smoothing member 130 and the rotating member 120. Under the restriction of the limiting member 140, the smoothing member 130 can switch between the first position and the second position, thereby having a better smoothing effect on the electrode tab.

[0105] Optionally, in one specific embodiment, the number of the through slots 1432 is four, and the four through slots 1432 are arranged at intervals around the periphery of the mounting portion 143.

[0106] Further optionally, the maximum width of the through-slot 1432 ranges from 4mm to 6mm to facilitate the insertion of the fastener. Specifically, the maximum width of the through-slot 1432 can be, but is not limited to, 4mm, 4.2mm, 4.5mm, 4.8mm, 5mm, 5.2mm, 5.3mm, 5.5mm, 5.8mm, 5.9mm, and 6mm.

[0107] Optionally, if the maximum depth of the through groove 1432 ranges from 4.5mm to 5.5mm, the depth to which the support shaft 110 is inserted into the mounting cavity 1431 can be adjusted by adjusting the relative position of the through groove 1432 and the support shaft 110, thereby adjusting the relative position of the support shaft 110 and the limiting member 140. Specifically, the maximum depth of the through groove 1432 can be, but is not limited to, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, and 5.5mm.

[0108] Alternatively, in one specific embodiment, the through-hole 1432 is arranged in the form of a "U" shaped groove.

[0109] Please see also Figure 13 and Figure 14 In some embodiments, the outer wall of the first limiting part 141 is an arc, and the range of the central angle β of the arc is 80°≤β≤120°; the outer wall of the second limiting part 142 is an arc, and the range of the central angle γ of the arc is 80°≤γ≤120°.

[0110] Specifically, the value of the central angle β can be, but is not limited to, 80°, 81.5°, 82.5°, 83°, 84°, 85.9°, 86°, 87°, 88°, 90°, 92°, 93°, 95°, 96°, 98°, 100°, 101°, 103°, 105°, 106.3°, 110°, 112°, 113°, 114°, 115°, 118°, and 120°.

[0111] Specifically, the value of the central angle γ can be, but is not limited to, 81.5°, 82.5°, 83°, 84°, 85.9°, 86°, 87°, 88°, 90°, 92°, 93°, 95°, 96°, 98°, 100°, 101°, 103°, 105°, 106.3°, 110°, 112°, 113°, 114°, 115°, 118°, and 120°.

[0112] In this embodiment, the outer wall of the first limiting part 141 is an arc, and the central angle of the arc satisfies the range of 80°≤β≤120°. The space enclosed by the first limiting part 141 and the second limiting part 142 is within a reasonable range, so that the angle at which the smoothing member 130 can rotate relative to the support shaft 110 satisfies the range of 5°≤α≤20°. This allows the cell processing device 100 to adapt to different types and thicknesses of electrode sheets, and ensures that during the operation of the cell processing device 100, the smoothing part 131 of the smoothing member 130 can always be in contact with the electrode tab. The smoothing part 131 and the rotating member 120 cooperate with each other to achieve a better winding and smoothing effect on the electrode sheet, thereby improving the performance of the cell processing device 100.

[0113] Similarly, the outer wall of the second limiting part 142 is an arc, and the central angle of the arc satisfies the range of 80°≤γ≤120°. The space enclosed by the first limiting part 141 and the second limiting part 142 is within a reasonable range, so that the angle at which the smoothing member 130 can rotate relative to the support shaft 110 satisfies the range of 5°≤α≤20°. This allows the cell processing device 100 to adapt to different types and thicknesses of electrode sheets, and ensures that during the operation of the cell processing device 100, the smoothing part 131 of the smoothing member 130 can always be in contact with the electrode tab. The smoothing part 131 and the rotating member 120 cooperate with each other to achieve a better winding and smoothing effect on the electrode sheet, thereby improving the performance of the cell processing device 100.

[0114] Optionally, the shape of the orthographic projection of the mounting part 143 on the support shaft 110 is circular. The first limiting part 141 and the second limiting part 142 are symmetrically arranged with respect to the center of the circle. When the smoothing part 130 rotates relative to the support shaft 110, the smoothing part 130 can rotate with respect to the center of the circle. This ensures that when the smoothing part 130 is in the first position and the second position, the smoothing part 130 is subjected to balanced forces, thus maintaining the structural stability of the smoothing part 130 disposed on the limiting part 140.

[0115] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A battery cell manufacturing apparatus (100), characterized in that, The cell manufacturing apparatus (100) includes: Support shaft (110); A rotating component (120) is sleeved on the outer periphery of the support shaft (110) and can rotate relative to the support shaft (110); A smoothing member (130) is spaced apart from a portion of the outer periphery of the rotating member (120) and rotatably connected to the support shaft (110); and A limiting member (140) is installed on one side of the support shaft (110) to limit the smoothing member (130).

2. The cell processing apparatus (100) according to claim 1, characterized in that, The smoothing member (130) has a first position and a second position relative to the support shaft (110), and the limiting member (140) is used to limit the smoothing member (130) between the first position and the second position.

3. The cell processing apparatus (100) according to claim 2, characterized in that, The limiting member (140) includes a first limiting part (141) and a second limiting part (142). The first limiting part (141) and the second limiting part (142) are spaced apart on the side of the support shaft (110). When the smoothing member (130) is in a first position relative to the support shaft (110), the first limiting part (141) abuts against the smoothing member (130); when the smoothing member (130) is in a second position relative to the support shaft (110), the second limiting part (142) abuts against the smoothing member (130). Alternatively, there may be two limiting members (140), which are spaced apart on the side of the support shaft (110). When the smoothing member (130) is in a first position relative to the support shaft (110), one of the two limiting members (140) abuts against the smoothing member (130); when the smoothing member (130) is in a second position relative to the support shaft (110), the other of the two limiting members (140) abuts against the smoothing member (130).

4. The cell processing apparatus (100) according to claim 2, characterized in that, The limiting member (140) includes a mounting part (143), a first limiting part (141), and a second limiting part (142). The mounting part (143) has a mounting cavity (1431) for the support shaft (110) to pass through. The first limiting part (141) and the second limiting part (142) are spaced apart on the side of the mounting part (143) away from the support shaft (110). When the smoothing member (130) is in a first position relative to the support shaft (110), the first limiting part (141) abuts against a part of the smoothing member (130). When the smoothing member (130) is in a second position relative to the support shaft (110), the second limiting part (142) abuts against another part of the smoothing member (130).

5. The cell processing apparatus (100) according to claim 4, characterized in that, The smoothing component (130) includes a smoothing portion (131) and a connecting portion (132) that are bent and connected together. The smoothing portion (131) is spaced apart on a portion of the outer periphery of the rotating component (120). One end of the connecting portion (132) is connected to the smoothing portion (131), and the other end is rotatably connected to the support shaft (110). When the smoothing component (130) is in a first position relative to the support shaft (110), the first limiting portion (141) abuts against the connecting portion (132). When the smoothing component (130) is in a second position relative to the support shaft (110), the second limiting portion (142) abuts against the connecting portion (132).

6. The cell manufacturing apparatus (100) according to claim 5, characterized in that, The smoothing part (131) includes a first smoothing sub-part (133), a second smoothing sub-part (134), and a third smoothing sub-part (135) connected in sequence. The first smoothing sub-part (133), the second smoothing sub-part (134), and the third smoothing sub-part (135) are all arc-shaped structures. The arc-shaped opening of the first smoothing sub-part (133) is opposite to the arc-shaped opening of the second smoothing sub-part (134), and the arc-shaped opening of the second smoothing sub-part (134) is opposite to the arc-shaped opening of the third smoothing sub-part (135).

7. The cell processing apparatus (100) according to claim 4, characterized in that, At least a portion of the smoothing portion (131) overlaps with the support shaft (110), and at least a portion of the smoothing portion (131) protrudes from the support shaft (110) along the extending direction of the support shaft (110).

8. The cell manufacturing apparatus (100) according to claim 5, characterized in that, The cell processing apparatus (100) further includes a threading member (150), which is sequentially threaded through the connecting part (132) and the limiting member (140) to fix the relative position of the smoothing member (130) and the limiting member (140).

9. The cell manufacturing apparatus (100) according to claim 4, characterized in that, The cell processing apparatus (100) further includes fasteners, and the mounting part (143) also has a through groove (1432). The through groove (1432) passes through the mounting part (143) on the side opposite to the first limiting part (141). The fasteners are sequentially inserted into the through groove (1432) and the support shaft (110) to install the limiting member (140) at one end of the support shaft (110).

10. The cell manufacturing apparatus (100) according to any one of claims 6 to 9, characterized in that, The outer wall of the first limiting part (141) is an arc, and the range of the central angle β of the arc is: 80°≤β≤120°; The outer wall of the second limiting part (142) is an arc, and the range of the central angle γ of the arc is: 80°≤γ≤120°.

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