Clamping assembly, transport mechanism and apparatus for assembling battery cells

Abstract

The embodiment of the present application provides a clamping assembly, a conveying mechanism and an equipment for assembling battery monomers. The clamping assembly comprises two clamping modules which are arranged at intervals along a first direction, and a moving module which is connected with the two clamping modules. The two clamping modules are used for moving away from each other along the first direction to release the material or moving close to each other along the first direction to clamp the material when the moving module moves along a second direction, wherein the second direction is different from the first direction. The clamping assembly, the conveying mechanism and the equipment for assembling battery monomers can improve the conveying and processing efficiency of the material.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a clamping assembly, a transmission mechanism, and an apparatus for assembling battery cells. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] With the development of battery technology, battery performance is no longer solely influenced by battery materials; the manufacturing process has also become a key factor limiting battery performance. Therefore, improving battery processing and production efficiency is one of the most important issues in the battery field. Utility Model Content

[0004] This application provides a clamping component, a transmission mechanism, and an apparatus for assembling battery cells, which can improve the efficiency of material transmission and processing.

[0005] In a first aspect, a clamping assembly is provided for use in a transfer mechanism. The clamping assembly includes: two clamping modules spaced apart along a first direction, with the material located between the two clamping modules; and a moving module linked to the two clamping modules. The two clamping modules are configured to: move along the first direction and move away from each other while the moving module moves along a second direction to release the material, or move along the first direction and move closer to each other to clamp the material. The second direction is different from the first direction.

[0006] Therefore, when the clamping component of this application clamps the material, the movement module of the clamping component moves under the driving force, and its movement does not obstruct the movement of the clamping module. This makes it convenient for the material to be clamped between the two clamping modules, or to be removed or placed between the two clamping modules. There is no need to consider whether the movement direction of the moving module obstructs the material, making it more convenient and faster, thereby improving the transportation efficiency of the material.

[0007] In some embodiments, the clamping assembly includes: a retaining structure connected to the moving module, the retaining structure being used to hold the moving module in a target position, and two clamping modules being used to clamp the material along the first direction when the moving module is in the target position.

[0008] With the help of the retaining structure, the moving module can be located at the target position. Correspondingly, the two clamping modules are close to each other, so that the two clamping modules can keep clamping the electrode assembly along the first direction.

[0009] In some embodiments, the retaining structure includes a spring extending along the second direction. When the spring is not subjected to external force, it automatically returns to its initial state, simultaneously pushing the moving module to the target position and holding it there, thereby enabling the two clamping modules to hold the electrode assembly in place. The structure is simple and easy to implement.

[0010] In some embodiments, when the moving module is driven by a driving force applied by the driving component of the transmission mechanism along the second direction, the moving module is used to move along the second direction, and the two clamping modules are used to move along the first direction and move away from each other to release the material.

[0011] The driving force applied by the driving component can make the moving module move in the second direction, and in turn, the clamping module linked with the moving module can move in the first direction. The structure is simple and easy to implement.

[0012] In some embodiments, the moving module includes a chute structure, and each of the two clamping modules includes a protrusion structure, at least partially received within and moving within the chute structure.

[0013] In this way, by reasonably designing the slide groove structure, the two clamping modules with the protruding structure can be linked with the moving module with the slide groove structure. The structure is simple and easy to implement.

[0014] In some embodiments, the extension direction of the slide structure is different from the second direction and different from the first direction, so that when the drive component applies a driving force to the moving module along the second direction, the two clamping modules can move along the first direction, which is different from the second direction, due to the setting of the extension direction of the slide structure.

[0015] In some embodiments, the moving module includes two sliding groove structures, which correspond one-to-one with the protrusion structures of the two clamping modules.

[0016] Considering that a material electrode assembly is provided between the two clamping modules in this embodiment, there is a certain distance between the two clamping modules. Correspondingly, there is also a certain distance between the protrusions of the two clamping modules. Therefore, two sliding groove structures can be provided to accommodate the two protrusions respectively, so that the two sliding groove structures do not affect each other and improve the structural reliability.

[0017] In some embodiments, the two sliding groove structures are at equal angles with the first direction. Considering that the two clamping modules usually need to move synchronously, such as moving closer to each other or moving away from each other, the movement of the protrusions of the two clamping modules can be synchronized by setting the two sliding groove structures to be at equal angles with the first direction, thereby synchronizing the movement of the two clamping modules and improving the clamping efficiency of the two clamping modules.

[0018] In some embodiments, the second direction is perpendicular to the first direction. This ensures that the movement of the moving module and the movement of the clamping module are perpendicular to each other, and that they do not interfere with each other in their movement positions. Furthermore, when the driving component applies a driving force along the second direction, it does not impede the movement of the two clamping modules, simplifying the structural design and facilitating implementation.

[0019] In some embodiments, the clamping assembly further includes a support module, which is stacked with the moving module along the third direction and close to the material, wherein the surface of the support module facing the material is a support surface.

[0020] The carrier module is positioned between the moving module and the material, for example, between the moving module and the electrode assembly. This allows the carrier module to carry the electrode assembly without affecting the movement of the moving module under the driving force, making it easy to implement.

[0021] In some embodiments, the two clamping modules are respectively used to clamp two oppositely arranged first end faces of the material, the first end faces being perpendicular to the bearing surface. By clamping the opposite two first end faces of the material with the two clamping modules, the clamping force on the material is more uniform, maintaining the balance of the material on the bearing surface and thus improving the stability of the material on the clamping assembly. Furthermore, since the first end faces are perpendicular to the bearing surface, while the clamping modules are clamping the material, it does not affect the material's ability to maintain its position on the bearing surface, thereby improving the stability of the material.

[0022] In some embodiments, both the second direction and the first direction are parallel to the bearing surface. The first direction being parallel to the bearing surface ensures that when the two clamping modules move, the material electrode assembly remains relatively stable on the bearing surface under its own gravity, preventing the position of the electrode assembly from being affected by the movement of the clamping modules. Similarly, the second direction is also parallel to the bearing surface, ensuring that when the moving module is driven by a driving force, the material electrode assembly remains relatively stable on the bearing surface under its own gravity, preventing the position of the electrode assembly from being affected by the movement of the moving module.

[0023] In some embodiments, the material is an electrode assembly in a battery cell.

[0024] In a second aspect, a transmission mechanism is provided, comprising: the clamping component described in the first aspect.

[0025] In some embodiments, the transfer mechanism further includes a drive component for applying a driving force to the clamping component, the clamping component being used to release the material under the action of the driving force.

[0026] Thirdly, an apparatus for assembling battery cells is provided, comprising: the transfer mechanism described in the first aspect, the transfer mechanism being used to transfer components of the battery cells to be assembled between different workstations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a clamping component disclosed in an embodiment of this application; Figure 2 This is an exploded structural diagram of a battery cell disclosed in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a clamping component disclosed in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a clamping assembly for a clamping electrode assembly disclosed in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a clamping assembly for releasing an electrode assembly, as disclosed in an embodiment of this application; Figure 6 This is a top view schematic diagram of a partial structure of a clamping component disclosed in an embodiment of this application; Figure 7 This is a top view schematic diagram of another partial structure of a clamping component disclosed in an embodiment of this application; Figure 8 This is a top view schematic diagram of a partial structure of a clamping component disclosed in an embodiment of this application; Figure 9 This is a top view schematic diagram of a partial structure of another clamping component disclosed in an embodiment of this application; Figure 10 This is a schematic block diagram of a transmission mechanism disclosed in one embodiment of this application.

[0028] The accompanying drawings are not drawn to scale. Detailed Implementation

[0029] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0030] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, 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 on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0031] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0033] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment 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 mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0034] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0035] The term "battery" as used in this application refers to a single physical module comprising one or more individual battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. Batteries generally include a housing for encapsulating one or more individual battery cells. The housing prevents liquids or other foreign matter from affecting the charging or discharging of the individual battery cells.

[0036] In some embodiments, a battery cell may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, etc., and this application embodiment is not limited to this. Generally, a battery cell may also be referred to as a battery cell. A battery cell may be cylindrical, flat, cuboid, or other regular or irregular shapes. The technical solutions of the embodiments of this application can be applied to battery cells of any shape.

[0037] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a cathode plate, an anode plate, and a separator. The battery cell primarily functions by the movement of metal ions between the cathode and anode plates. The cathode plate includes a cathode current collector and a cathode active material layer. The cathode active material layer is coated on the surface of the cathode current collector, and the uncoated current collector protrudes beyond the coated current collector, serving as the cathode tab. Taking a lithium-ion battery as an example, the cathode current collector can be made of aluminum, and the cathode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The anode plate includes an anode current collector and an anode active material layer. The anode active material layer is coated on the surface of the anode current collector, and the uncoated current collector protrudes beyond the coated current collector, serving as the anode tab. The anode current collector can be made of copper, and the anode active material can be carbon or silicon, etc. To ensure that large currents can pass through without melting, multiple cathode tabs are stacked together, and multiple negative electrode tabs are also stacked together. The membrane material can be, for example, polypropylene (PP) or polyethylene (PE).

[0038] The development of battery technology must take into account multiple design factors, such as energy density, cycle life, discharge capacity, charge-discharge rate and other performance parameters. In addition, the processing efficiency and yield of the battery also need to be considered. For example, the processing efficiency of the battery can be improved by improving the processing efficiency of the individual battery cells.

[0039] The production process of a single battery cell is extremely complex. It typically includes the processing and assembly of electrode components, the assembly of electrode components with end caps, the assembly of electrode components with the casing, and the assembly of the casing with end caps. Therefore, the production efficiency of a single battery cell severely restricts the overall battery production efficiency. Thus, effectively improving the production efficiency of single battery cells is one of the most important issues in the battery industry.

[0040] Based on this, embodiments of this application provide a clamping assembly for a transmission mechanism. The clamping assembly includes two clamping modules spaced apart along a first direction, with material positioned between the two clamping modules. The clamping assembly also includes a moving module linked to the two clamping modules. When the moving module moves along a second direction, the two clamping modules can move along the first direction and approach each other to clamp the material; alternatively, the two clamping modules can move along the first direction and move away from each other to release the material. The first and second directions are different. Thus, when using this clamping assembly to clamp material, the movement of the moving module under driving force does not obstruct the movement of the clamping modules, facilitating the clamping of material between the two clamping modules, or its removal or insertion from between them, without needing to consider whether the moving module's direction of movement obstructs the material. This is more convenient and faster, thereby improving the material transportation efficiency.

[0041] It should be understood that the material clamping components of this application embodiment can be used to clamp any material to improve the material transportation efficiency. The clamping components of this application embodiment will now be described in detail with reference to the accompanying drawings.

[0042] Figure 1 A schematic diagram of the clamping assembly 11 according to an embodiment of this application is shown. Figure 1 As indicated, the clamping assembly 11 for the transfer mechanism includes: two clamping modules 111 spaced apart along a first direction X, with the material located between the two clamping modules 111; and a moving module 112 linked to the two clamping modules 111; wherein the two clamping modules 111 are used to: move along the first direction X and move away from each other while the moving module 112 moves along a second direction Y to release the material, or move along the first direction X and move closer to each other to clamp the material; the second direction Y is different from the first direction X.

[0043] It should be understood that the first direction X in the embodiments of this application can be any direction. For example, the first direction X can include two opposite directions. Figure 1 Only one of the directions included in the first direction X is shown, so that when the two clamping modules 111 move along the first direction X, they may move away from each other or move closer to each other.

[0044] In this embodiment, the second direction Y can be any direction different from the first direction X. For example, the second direction Y can also include two opposite directions. Figure 1 Only one of the directions included in the second direction Y is shown, so that the moving module 112 can also reciprocate along the second direction Y.

[0045] It should be understood that when the moving module 112 moves along the second direction Y, for example, if the moving module 112 moves along any direction included in the second direction Y, the two clamping modules 111 move along the first direction X and move away from each other, that is, the distance between the two clamping modules 111 gradually increases, so that when there is material between the two clamping modules 111, the material can be released, or if there is no material between the two clamping modules 111, the material can be placed between the two clamping modules 111 at this time. Conversely, when the moving module 112 moves along the second direction Y, for example, if the moving module 112 moves along another direction included in the second direction Y, the two clamping modules 111 may also move along the first direction X and move closer to each other, that is, the distance between the two clamping modules 111 gradually decreases, so that when there is material between the two clamping modules 111, the material can be clamped, or if there is no material between the two clamping modules 111, the space between the two clamping modules 111 can remain empty at this time.

[0046] In this way, when the clamping component 11 is used to clamp the material, when the moving module 112 of the clamping component 11 is driven to move, its movement will not obstruct the movement of the clamping module 111. This makes it convenient for the material to be clamped between the two clamping modules 111, or to be removed or placed between the two clamping modules 111, without having to consider whether the moving direction of the moving module 112 obstructs the material. This is more convenient and faster, thereby improving the transportation efficiency of the material.

[0047] It should be understood that the clamping component 11 in this application embodiment can be used to clamp any material, for example, the material can be a regular or irregular shaped object. Specifically, for ease of explanation, this application embodiment mainly takes the electrode assembly 22 in the battery cell 2 as an example, and improves the transportation efficiency of the electrode assembly 22 by using the clamping component 11, thereby improving the assembly efficiency of the battery cell 2.

[0048] It should be understood that the battery cell 2 in the embodiments of this application can be used to assemble a battery, which can be used in various electrical devices that use batteries.

[0049] Electrical equipment can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not impose any special limitations on the above-mentioned electrical equipment.

[0050] To meet diverse power demands, a battery can comprise multiple individual cells, which can be connected in series, parallel, or a combination of both. A battery can also be called a battery pack. Optionally, multiple individual cells can first be connected in series, parallel, or a combination of both to form a battery module, and then multiple battery modules can be connected in series, parallel, or a combination of both to form a battery. In other words, multiple individual cells can be directly assembled into a battery, or they can first be assembled into battery modules, and then the battery modules can be assembled into a battery.

[0051] The structure of the battery cell 2 in this embodiment can be flexibly configured according to actual applications. For example, Figure 2 This paper shows a possible exploded structural diagram of the battery cell 2 according to an embodiment of this application. The following will use... Figure 2 Taking battery cell 2 as an example, its structure will be described. Figure 2 As shown, the battery cell 2 may include one or more electrode assemblies 22 and a housing 21 for accommodating the electrode assembly 22.

[0052] It should be understood that, such as Figure 2 As shown, the outer casing 21 in this embodiment can be a polyhedral structure. Specifically, the outer casing 21 may include a housing 211 and an end cap 212. The housing 211 may be a hollow structure with an opening at at least one end, and the shape of the end cap 212 may be adapted to the shape of the housing 211. The end cap 212 is used to cover the opening of the housing 211 so that the outer casing 21 isolates the internal environment of the battery cell 2 from the external environment. If the housing 211 is a hollow structure with an opening at one end, the end cap 212 can be set as one, for example... Figure 2 As indicated; in contrast, if the housing 211 is a hollow structure with openings at opposite ends, the end caps 212 can be configured as two, with the two end caps 212 respectively covering the openings at both ends of the housing 211.

[0053] The shell 211 in this embodiment can be made of various materials, such as copper, iron, aluminum, steel, aluminum alloy, etc. The end cap 212 can also be made of various materials, such as copper, iron, aluminum, steel, aluminum alloy, etc. The material of the end cap 212 can be the same as or different from that of the shell 211.

[0054] The outer shell 21 in this embodiment can be of various shapes, such as a cylinder, a cuboid, etc. The shapes of the shell 211 and the end cap 212 are mutually compatible, for example, as shown in... Figure 2 As shown, the shell 211 can be a cuboid structure, and the end cap 212 is a rectangular plate structure adapted to the shell 211.

[0055] For ease of explanation, this application uses a cuboid as an example for the outer shell 21. Specifically, as... Figure 2 As shown, the outer casing 21 includes: a housing 211, which is a hollow structure with one end open; and an end cap 212, which is used to cover the opening 2111 of the housing 211 to form a closed cavity for placing the electrode assembly 22.

[0056] In this battery cell 2, the housing 211 houses the electrode assembly 22, and, depending on actual usage requirements, the electrode assembly 22 within the housing 211 can be one or more. For example, Figure 2 Taking a battery cell 2 as an example, which includes four electrode components 22 arranged along the thickness direction Y of the electrode component 22, the embodiments of this application are not limited to this.

[0057] The electrode assembly 22 in this embodiment is a component in the battery cell 2 where an electrochemical reaction occurs. The electrode assembly 22 can be a cylinder, a cuboid, etc. If the electrode assembly 22 is a cylindrical structure, the housing 211 can also be a cylindrical structure; if the electrode assembly 22 is a cuboid structure, the housing 211 can also be a cuboid structure.

[0058] For any given electrode assembly 22, the electrode assembly 22 may include a tab 222 and a main body 221. Specifically, as shown... Figure 2 As shown, the electrode assembly 22 may include at least two tabs 222, which may include at least one cathode tab and at least one anode tab. The cathode tab may be formed by stacking portions of the cathode electrode sheet that are not coated with a cathode active material layer, and the anode tab may be formed by stacking portions of the anode electrode sheet that are not coated with a negative electrode active material layer.

[0059] In this embodiment, the outer casing 21 is further provided with electrode terminals 214, which are used for electrical connection with the electrode assembly 22 to output the electrical energy of the battery cell 2. Figure 2As shown, the battery cell 2 may also include at least two electrode terminals 214, which may be disposed on the same wall or different walls of the battery cell 2, for example, Figure 2 Taking the battery cell 2 as an example, it includes two electrode terminals 214, both of which are mounted on an end cap 212. The end cap 212 is typically flat, and the two electrode terminals 214 are fixed to the flat surface of the end cap 212. The two electrode terminals 214 are respectively the cathode terminal and the negative electrode terminal. Each electrode terminal 214 is provided with a corresponding connecting member 24, located between the end cap 212 and the electrode assembly 22, for electrically connecting the electrode assembly 22 and the electrode terminal 214. Specifically, as shown... Figure 2 As shown, the cathode tab of the electrode assembly 22 can be connected to the cathode electrode terminal through a connecting member 24, and the anode tab of the electrode assembly 22 can be connected to the negative electrode terminal through another connecting member 24.

[0060] It should be understood that the battery cell 2 in this embodiment further includes an insulating layer 23, which is a hollow structure having at least one opening. For example, as Figure 2 As shown, this application primarily uses an example where the insulating layer 23 has an opening, and this opening faces the end cap 212. The insulating layer 23 is disposed between the housing 211 and the electrode assembly 22. The hollow structure of the insulating layer 23 is used to accommodate the electrode assembly 22, such that the insulating layer 23 covers at least a portion of the outer surface of the electrode assembly 22, and the insulating layer 23 can be used to maintain electrical insulation between the electrode assembly 22 and the inner wall of the housing 211. For example, the insulating layer 23 can be a thin film-shaped cover made of insulating material to cover at least a portion of the outer periphery of the electrode assembly 22. Specifically, the insulating layer 23 can be a sheet-like structure before covering the electrode assembly 22, and the hollow opening structure covering the outside of the electrode assembly 22 is formed by the action of the coating mechanism 20.

[0061] In this embodiment, the shape of the insulating layer 23 can be determined based on the shape of the electrode assembly 22 or the shape of the housing 211. For example, in this embodiment, the insulating layer 23 is a cuboid, but this embodiment is not limited to this.

[0062] Optionally, the casing 21 of the battery cell 2 in this embodiment may also be provided with other components. For example, such as Figure 2 As shown, the battery cell 2 may also include a pressure relief mechanism, but the embodiments of this application are not limited thereto.

[0063] It should be understood that, considering that the battery cell 2 comprises multiple components, the assembly process of the battery cell 2 is relatively complex. The clamping assembly 11 can transfer the electrode assembly 22 to complete different assembly processes at different workstations. For example, the clamping assembly 11 can clamp the electrode assembly 22 and transfer it to the coating workstation; at the coating workstation, the insulating layer 23 is wrapped around at least a portion of the outer surface of the electrode assembly 22 by the coating mechanism; then, the clamping assembly 11 continues to transfer the electrode assembly 22 wrapped with the insulating layer 23 to the casing workstation; at the casing workstation, the casing 211 is fitted onto the outside of the electrode assembly 22 wrapped with the insulating layer 23 by the casing mechanism, so that the electrode assembly 22 enters the casing 211. Therefore, the clamping assembly 11 can improve the transfer efficiency of the electrode assembly 22, thereby improving the assembly efficiency of the battery cell 2.

[0064] Figure 3 A schematic diagram of the clamping component 11 according to an embodiment of this application is shown; for example, to clearly illustrate the structure of the clamping component 11, Figure 1 The clamping assembly 11 shown is compared to Figure 3 The clamping assembly 11 shown reduces some of the structure used to support the electrode assembly 22. Figure 4 This illustration shows a schematic diagram of the structure of a clamping assembly 11 with the electrode assembly 22 fixed in an embodiment of this application. For example, the... Figure 4 The clamping assembly 11 shown can be as follows: Figure 1 and Figure 3 The clamping assembly 11 shown. Figure 5 Another schematic diagram of the clamping assembly 11 with electrode assembly 22 provided in an embodiment of this application is shown, for example, Figure 5 and Figure 4 The difference is: Figure 4 The clamping assembly 11 clamps the electrode assembly 22, while Figure 5 The clamping component 11 releases the electrode component 22.

[0065] like Figures 3 to 5 As shown, the clamping assembly 11 in this embodiment further includes a support module 114. The support module 114 and the moving module 112 are stacked together along the third direction Z and close to the material. The surface of the support module 114 facing the material is the support surface 1141. The support module 114 is positioned between the moving module 112 and the material, for example, between the moving module 112 and the electrode assembly 22. This facilitates the support module 114 in supporting the electrode assembly 22 without affecting the movement of the moving module 112 under the driving force, making it easy to implement.

[0066] It should be understood that the structure of the support module 114 in this application embodiment can be configured according to actual application. For example, the support module 114 can be a plate-like structure, and correspondingly, the moving module 112 can also be a plate-like structure. In this way, the support module 114 and the moving module 112 are stacked, which not only facilitates the processing and assembly of the two, but also saves the overall volume of the clamping assembly 11 and simplifies the overall structure of the clamping assembly 11.

[0067] It should be understood that the carrier module 114 of the clamping assembly 11 in this embodiment can be used to carry the electrode assembly 22. The end face of the electrode assembly 22 with tabs 222 faces the carrier module 114, so that the electrode assembly 22 is placed on the clamping assembly 11 along a third direction Z, which is perpendicular to the end face of the electrode assembly 22 with tabs 222. On the one hand, considering that when wrapping the insulating layer 23, the insulating layer 23 does not need to wrap the end face of the electrode assembly 22 with tabs 222, when the electrode assembly 22 is transferred through the clamping assembly 11, the end face facing the carrier module 114 will not affect the wrapping process of the insulating layer 23, and there is no need to flip the electrode assembly 22 when wrapping the insulating layer 23, thus avoiding damage to the electrode assembly 22. On the other hand, the end face with the tab 222 faces the support module 114, and the electrode assembly 22 is disposed on the clamping assembly 11 along the third direction Z. This allows the electrode assembly 22 to be placed on the clamping assembly 11 by its own weight, which is convenient for placement and can also improve the stability of the electrode assembly 22 on the clamping assembly 11.

[0068] Optionally, considering the processing sequence of the battery cell 2, the clamping assembly 11 can also be used to support other components of the battery cell 2. For example, the clamping assembly 11 is used to support the electrode assembly 22 and the end cap 212. The end cap 212 is attached to the end face of the electrode assembly 22 where the tabs 222 are provided, and the support module 114 is attached to the surface of the end cap 212 away from the electrode assembly 22. When assembling the battery cell 2, the electrode assembly 22 and the end cap 212 can be fixed first. For example, the electrode terminals 214 of the end cap 212 can be connected to the corresponding tabs 222 through the connecting member 24, so that the end cap 212 and the electrode assembly 22 are relatively fixed, that is, the end cap 212 and the electrode assembly 22 can be processed together in subsequent processes. The clamping assembly 11 can be used to carry the electrode assembly 22 and the end cap 212. The carrying module 114 of the clamping assembly 11 contacts the surface of the end cap 212 furthest from the electrode assembly 22, while the surface of the end cap 212 closest to the electrode assembly 22 is attached to one end face of the electrode assembly 22. In this way, the clamping assembly 11 can simultaneously transport the electrode assembly 22 and the end cap 212 for subsequent assembly processes, which helps improve the processing efficiency of the battery cell 2.

[0069] It should be understood that the carrier module 114 in this embodiment includes a carrier surface 1141, which is a surface of the carrier module 114. This surface can be a flat surface to facilitate the processing of the clamping assembly 11; or, the carrier surface 1141 can be an uneven surface. For example, the shape of the carrier surface 1141 can be set according to the shape of the component it contacts. For example, the carrier surface 1141 contacts the surface of the end cap 212. Considering that the surface of the end cap 212 away from the electrode assembly 22 may have some protruding or recessed components, the surface of the end cap 212 away from the electrode assembly 22 is usually uneven. Correspondingly, the carrier surface 1141 can also be uneven to adapt to the surface of the end cap 212 away from the electrode assembly 22. For example, the end cap 212 is provided with an electrode terminal 214, which protrudes from the surface of the end cap 212 away from the electrode assembly 22. Correspondingly, a recessed area can be provided on the bearing surface 1141 to accommodate the electrode terminal 214, so that the surface of the end cap 212 is adapted to the bearing surface 1141. On the one hand, the positioning can be achieved through the correspondence between the protruding part and the recessed area, which facilitates the accurate placement of the end cap 212 and the electrode assembly 22 on the bearing surface 1141. It can also make the end cap 212 more stably located on the bearing surface 1141, improving the transmission stability of the clamping assembly 11. On the other hand, it can also reduce the wear of the bearing surface 1141 on the surface of the end cap 212, improving the yield of the battery cell 2.

[0070] Optionally, such as Figures 3 to 5 As shown, two clamping modules 111 are used to clamp the two oppositely arranged first end faces 223 of the material, with the first end faces 223 perpendicular to the bearing surface 1141. By clamping the opposite first end faces 223 of the material with the two clamping modules 111, the clamping force on the material is more uniform, maintaining the balance of the material on the bearing surface 1141, thereby improving the stability of the material on the clamping assembly 11. Furthermore, since the first end faces 223 are perpendicular to the bearing surface 1141, while the clamping modules 111 clamp the material, they do not affect the material's ability to maintain its position on the bearing surface 1141, thus improving the stability of the material.

[0071] Optionally, such as Figures 3 to 5As shown, both the second direction Y and the first direction X are parallel to the bearing surface 1141. The first direction X being parallel to the bearing surface 1141 ensures that when the two clamping modules 111 move, the material electrode assembly 22 remains relatively stable on the bearing surface 1141 under its own gravity, preventing the movement of the clamping modules 111 from affecting the position of the electrode assembly 22. Similarly, the second direction Y is also parallel to the bearing surface 1141, ensuring that when the moving module 112 is driven to move, the material electrode assembly 22 remains relatively stable on the bearing surface 1141 under its own gravity, preventing the movement of the moving module 112 from affecting the position of the electrode assembly 22.

[0072] The clamping and releasing states of the clamping component 11 in the embodiments of this application will now be described in detail with reference to the accompanying drawings. Figures 6 to 8 Top views of the clamping assembly 11 in several different states according to embodiments of this application are shown, for example, Figures 6 to 8 for Figure 1 The diagram shows a top view of a portion of the clamping assembly 11.

[0073] like Figure 6 As shown, the clamping assembly 11 includes a retaining structure 113 connected to the moving module 112. The retaining structure 113 is used to hold the moving module 112 in a target position. Two clamping modules 111 are used to clamp the material along the first direction X when the moving module 112 is in the target position. Thus, under the action of the retaining structure 113, the moving module 112 can be located in the target position. Correspondingly, the two clamping modules 111 are close to each other, enabling them to clamp the electrode assembly 22 along the first direction X.

[0074] Optionally, the retaining structure 113 in this embodiment can be implemented in various ways. For example, as Figure 6 As shown, the retaining structure 113 includes a spring 1131 extending along the second direction Y. When the spring 1131 is not subjected to external force, the spring 1131 will automatically return to its initial state, while pushing the moving module 112 to the target position and holding it in the target position, thereby enabling the two clamping modules 111 to hold the clamping electrode assembly 22. The structure is simple and easy to implement.

[0075] Optionally, the type of spring 1131 in this application embodiment can be flexibly set according to actual application. For example, the spring 1131 can be a compression spring or a tension spring, and this application embodiment is not limited thereto.

[0076] In the embodiments of this application, such as Figure 7 As shown, comparison Figure 7 and Figure 6It is understood that when the moving module 112 is driven by the driving component 12 of the transmission mechanism along the second direction Y, the moving module 112 moves along the second direction Y, and the two clamping modules 111 move along the first direction X and move away from each other to release the material. Specifically, when the driving component 12 gradually applies a driving force to the moving module 112 along the second direction Y, the moving module 112 moves along the second direction Y. For example, the second direction Y here includes, for example, Figure 7 Taking the vertically upward direction as an example, that is, the driving component 12 moves along the direction shown in the figure. Figure 7 A driving force is applied to the vertically upward second direction Y to the moving module 112. Under the action of this driving force, the moving module 112 moves accordingly along the vertically upward second direction Y. Correspondingly, the two clamping modules 111 linked with the moving module 112 move along the first direction X and move away from each other, so that the distance between the two clamping modules 111 gradually increases, and the clamping force of the two clamping modules 111 on the electrode assembly 22 gradually decreases.

[0077] Optionally, the moving module 112 includes a driving part 1123, which is used to contact the driving component 12 and receive the driving force applied by the driving component 12. By contacting the driving component 12 with the driving part 1123, the driving force applied by the driving component 12 can be received and transmitted quickly, so that the moving module 112 can react quickly and move along the second direction Y under the action of the driving force.

[0078] Until Figure 8 As shown, comparison Figure 8 and Figure 7 It can be seen that when the driving force applied by the driving component 12 along the vertically upward second direction Y gradually increases until the moving module 112 moves to the farthest distance along the vertically upward second direction Y, the two clamping modules 111 linked with the moving module 112 also move along the first direction X and move away from each other until the distance between them is the largest. Then the material electrode assembly 22 can be removed from the two clamping modules 111, that is, the electrode assembly 22 is removed from the clamping component 11.

[0079] like Figures 6 to 8 As shown, when the driving component 12 applies a driving force, this driving force is greater than the holding force of the holding structure 113, causing the moving module 112 to leave the target position. For example, taking spring 1131 as an example, spring 1131 is used to be compressed in the second direction Y when the driving component 12 applies a driving force to the moving module 112 in the second direction Y. For example, when the driving component 12 applies a driving force in the vertically upward second direction Y, spring 1131 can be compressed.

[0080] It should be understood that, since Figures 6 to 8As shown, this can be viewed as the driving component 12 gradually increasing the driving force along the vertically upward second direction Y; conversely, from... Figures 8 to 6 As shown, the driving component 12 can be seen as gradually reducing the driving force along the second vertically upward direction Y.

[0081] Specifically, such as Figure 8 As shown, when the distance between the two clamping modules 111 is at its maximum, the electrode assembly 22 can be placed between the two clamping modules 111 so that the electrode assembly 22 is placed in the clamping assembly 11.

[0082] like Figure 7 As shown, comparison Figure 7 and Figure 8 It can be seen that by gradually reducing the driving force of the driving component 12 in the vertically upward second direction Y, the moving module 112 gradually moves in the vertically downward second direction Y under the action of the holding structure 113. At this time, the two clamping modules 111 linked with the moving module 112 move closer to each other in the first direction X, that is, the distance between the two clamping modules 111 gradually decreases. Then the two clamping modules 111 can gradually approach the electrode component 22 and gradually clamp the electrode component 22.

[0083] Until Figure 6 As shown, comparison Figure 6 and Figure 7 It can be seen that when the driving component 12 does not apply driving force to the moving module 112, under the action of the holding structure 113, the moving module 112 returns to the target position, and the two clamping modules 111 linked with the moving module 112 approach each other along the first direction X and clamp the electrode component 22, thereby realizing the fixation between the electrode component 22 and the clamping component 11.

[0084] It should be understood that as the driving force applied by the drive component 12 gradually decreases, the retaining structure 113 enables the moving module 112 to gradually approach the target position. For example, taking the retaining structure 113 as a spring 1131, the spring 1131 is used to reset along the second direction Y when the drive component 12 does not apply a driving force to the moving module 112. Specifically, as Figures 8 to 6 As shown, as the driving force applied by the driving component 12 gradually decreases, the spring 1131 gradually recovers from the compressed state until the driving component 12 no longer applies driving force. The spring 1131 then recovers to its original state along the second direction Y, causing the moving module 112 to move to the target position and remain at the target position when the driving component 12 no longer applies driving force. In this way, the two clamping modules 111 linked with the moving module 112 can maintain the state of clamping the electrode component 22 to fix the electrode component 22.

[0085] It should be understood that when an electrode assembly 22 is disposed between the two clamping modules 111, the target position of the moving module 112 can be set according to the size of the clamped electrode assembly 22 itself, so that the two clamping modules 111 can clamp the electrode assembly 22. Alternatively, when no components are disposed between the two clamping modules 111, the moving module 112 can also return to the target position under the action of the holding structure 113, with the two clamping modules 111 approaching each other but not clamping any components.

[0086] It should be understood that the specific structure of the two clamping modules 111 in this application embodiment can be flexibly set according to actual applications. For example, the two clamping modules 111 can be set to a mutually symmetrical structure so that when the two clamping modules 111 clamp the electrode assembly 22, the clamping force on the electrode assembly 22 is relatively uniform, so as to maintain the stability of the electrode assembly 22. For example, each clamping module 111 in this application embodiment can be a columnar structure, and the size of the area in contact between each clamping module 111 and the electrode assembly 22 can be flexibly set according to actual needs. This application embodiment is not limited to this.

[0087] In this embodiment, the linkage between the moving module 112 and the two clamping modules 111 can be achieved in various ways. For example, the linkage between the moving module 112 and the two clamping modules 111 can be achieved by setting a sliding groove and a protrusion that can move within the sliding groove. Specifically, as shown... Figures 6 to 8 As shown, the moving module 112 includes a sliding groove structure 1121. Each of the two clamping modules 111 includes a protrusion structure 1111. At least a portion of the protrusion structure 1111 is accommodated in the sliding groove structure 1121 and moves within the sliding groove structure 1121. The sliding groove structure 1121 accommodates at least a portion of the protrusion structure 1111, allowing the protrusion structure 1111 to slide within the sliding groove structure 1121. Thus, by reasonably designing the sliding groove structure 1121, the two clamping modules 111 with the protrusion structure 1111 can be linked relative to the moving module 112 with the sliding groove structure 1121. The structure is simple and easy to implement.

[0088] Optionally, the extension direction of the slide structure 1121 can be set according to the actual application. For example, the extension direction of the slide structure 1121 can be determined according to the first direction X and the second direction Y. As another example, the extension direction of the slide structure 1121 may be different from both the second direction Y and the first direction X, so that when the drive assembly 12 applies a driving force to the moving module 112 along the second direction Y, the two clamping modules 111 can move along the first direction X, which is different from the second direction Y, due to the setting of the extension direction of the slide structure 1121. As yet another example, the extension direction of the slide structure 1121 can also be related to at least one of the following parameters: the moving speed of the moving module 112, the moving speed of the two clamping modules 111, the magnitude of the driving force applied by the drive assembly 12, and the elastic coefficient of the spring 1131. That is, the extension direction of the slide structure 1121 can be determined according to at least one of the above parameters, but the embodiments of this application are not limited thereto.

[0089] Optionally, such as Figures 6 to 8 As shown, the moving module 112 includes two sliding groove structures 1121, which correspond one-to-one with the protrusions 1111 of the two clamping modules 111. Considering that a material electrode assembly 22 is provided between the two clamping modules 111 in this embodiment, there is a certain distance between the two clamping modules 111. Correspondingly, the protrusions 1111 of the two clamping modules 111 also have a certain distance. Therefore, two sliding groove structures 1121 can be provided to accommodate the two protrusions 1111 respectively, so that the two sliding groove structures 1121 do not affect each other, thus improving the structural reliability.

[0090] Optionally, such as Figures 6 to 8 As shown, the two sliding groove structures 1121 form equal angles with the first direction X. Considering that the two clamping modules 111 usually need to move synchronously, such as moving closer to each other or moving away from each other, the movement of the protrusion structures 1111 of the two clamping modules 111 can be synchronized by setting the two sliding groove structures 1121 to form equal angles with the first direction X, thereby synchronizing the movement of the two clamping modules 111 and improving the clamping efficiency of the two clamping modules 111.

[0091] In this embodiment, the moving module 112 moves along the second direction Y, which can be flexibly set according to the actual application. For example, the second direction Y is perpendicular to the third direction Z, so that when the moving module 112 is driven to move, the material electrode assembly 22 can still remain relatively stable on the bearing surface 1141 under its own gravity, avoiding the position of the electrode assembly 22 being affected by the movement of the moving module 112.

[0092] For example, the second direction Y is perpendicular to the first direction X, so the movement of the moving module 112 is perpendicular to the movement of the clamping module 111, and the two will not affect each other in their movement positions; and when the driving component 12 applies driving force along the second direction Y, it will not hinder the movement of the two clamping modules 111, simplifying the structural design and making it easier to implement.

[0093] Optionally, if the second direction Y is set to be perpendicular to the first direction X, the extension direction of the slide structure 1121 can be located between the first direction X and the second direction Y. For example, the angle between it and the first direction X can be 45°, and the angle between it and the second direction Y can also be 45°. This makes the moving speed of the moving module 112 equal to the moving speed of the clamping module 111, which is convenient for control. However, the embodiments of this application are not limited to this.

[0094] Optionally, the above description mainly uses the example of the retaining structure 113 including a spring 1131 extending along the second direction Y. Alternatively, the retaining structure 113 can also be implemented in other ways. Similarly, the linkage between the moving module 112 and the two clamping modules 111 in this embodiment can also be implemented using other structures.

[0095] For example, Figure 9 Another top view schematic diagram of the clamping assembly 11 according to an embodiment of this application is shown. Figure 9 This illustration shows another possible structure of the holding structure 113 according to an embodiment of this application, as well as possible structures of the moving module 112 and the clamping module 111 according to an embodiment of this application. Figure 9 As shown, the holding structure 113 of the clamping assembly 11 may include a spring 1132 extending along a first direction X. Specifically, the spring 1132 extending along the first direction X may be configured to correspond one-to-one with the two clamping modules 111, that is, each spring 1132 is connected to a corresponding clamping module 111. In addition, the moving module 112 of the clamping assembly 11 may include a wedge-shaped surface 1122. Correspondingly, each of the two clamping modules 111 includes a cam 1112, such that the cam 1112 can move along the wedge-shaped surface 1122, so that the moving module 112 is linked with the two clamping modules 111.

[0096] Specifically, when the driving component 12 applies a driving force, that is, when the driving component 12 applies a driving force along the second direction Y to the moving module 112, the moving module 112 moves along the second direction Y. Correspondingly, the cams 1112 of the two clamping modules 111 move along the wedge surface 1122, so that the two clamping modules 111 move away from each other along the first direction X, so as to release the electrode assembly 22, or to place the electrode assembly 22. At this time, the spring 1132 will deform under the action of the clamping module 111. Conversely, when the driving component 12 gradually reduces the driving force until it stops applying the driving force, the spring 1132 will return to its initial shape, pushing the two clamping modules 111 to gradually move closer, so as to tighten the electrode assembly 22. At the same time, due to the interaction between the cam 1112 and the wedge surface 1122, the moving module 112 moves along the second direction Y and returns to the target position.

[0097] Optionally, such as Figure 9 As shown, considering that the moving module 112 can be located outside the clamping module 111 when it is at the target position, and can be separated from the two clamping modules 111, the moving module 112 in this embodiment can be set separately from the two clamping modules 111. That is, while the two clamping modules 111 are clamping the material and moving along different workstations, the moving module 112 does not move and can be fixedly set at the corresponding workstation. For example, the position of the moving module 112 can be flexibly set according to the actual application. For example, for the electrode assembly 22, the coating workstation and / or the shell insertion workstation can be provided with the moving module 112 so that when the two clamping modules 111 clamp the electrode assembly 22 and move to the workstation, the moving module 112 can make the two clamping modules 111 move to loosen and tighten the electrode assembly 22. However, the embodiments of this application are not limited to this.

[0098] Therefore, in this embodiment, the clamping assembly 11 includes two clamping modules 111 spaced apart along a first direction X, with the material located between the two clamping modules 111. The clamping assembly 11 also includes a moving module 112 linked to the two clamping modules 111. When the moving module 112 moves along a second direction Y, the two clamping modules 111 can move along the first direction X and move closer to each other to clamp the material; alternatively, the two clamping modules 111 can move along the first direction X and move further apart to release the material. The first direction X and the second direction Y are different. Thus, when the clamping assembly 11 clamps the material, the moving module 112 of the clamping assembly 11 moves under driving force without obstructing the movement of the clamping modules 111. This facilitates clamping the material between the two clamping modules 111, or removing or placing the material between them, without needing to consider whether the moving direction of the moving module 112 obstructs the material, making it more convenient and faster, thereby improving the material transportation efficiency.

[0099] Figure 10 A schematic block diagram of the transmission mechanism 10 according to an embodiment of this application is shown. Figure 10 As shown, the transmission mechanism 10 of this embodiment includes a clamping component 11. The clamping component 11 can be, for example,... Figures 10 to 9 The clamping assembly 11 shown is used to transfer materials through the transfer mechanism 10.

[0100] Optionally, such as Figure 10 As shown, the transmission mechanism 10 further includes a drive component 12 for applying a driving force to the clamping component 11, the clamping component 11 for releasing the material under the action of the driving force.

[0101] This application embodiment also provides an apparatus for assembling a battery cell 2, the apparatus including the aforementioned transfer mechanism 10, the transfer mechanism 10 being used to transfer components of the battery cell 2 to be assembled between different workstations.

[0102] Optionally, the transfer mechanism 10 further includes a control component for controlling the movement of the clamping component 11 between different workstations to process materials at different workstations.

[0103] For example, when the transfer mechanism 10 is equipped with electrode assembly 22, and the transfer mechanism 10 can move gradually from the loading station to the unloading station, the control component can be used to control the clamping component 11 to move stably between the different stations to transfer and assemble the clamped electrode assembly 22. In this case, the control component can select a magnetic drive device to drive the movement of the clamping component 11 by magnetic force to maintain the stability and movement speed of the electrode assembly 22.

[0104] After the electrode assembly 22 of the transfer mechanism 10 is removed, for example, after the unloading station, the transfer mechanism 10 can move back to the loading station to fix and transfer the next electrode assembly 22. During the process of the clamping assembly 11 of the transfer mechanism 10 returning from the unloading station to the loading station, since no parts are clamped, the control component can select other devices to save time and cost. For example, the control component may include a conveyor belt to quickly return the clamping assembly 11 to the loading station to complete one cycle, i.e., to complete the housing process of one electrode assembly 22, but the embodiments of this application are not limited to this.

[0105] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A clamping assembly for a transmission mechanism, characterized in that, include: Two clamping modules (111) are spaced apart along a first direction (X), and the material is located between the two clamping modules (111); A moving module (112) that is linked to the two clamping modules (111). The two clamping modules (111) are used to: move along the first direction (X) and move away from each other while the moving module (112) moves along the second direction (Y) to release the material, or move along the first direction (X) and move closer to each other to clamp the material; the second direction (Y) is different from the first direction (X).

2. The clamping assembly according to claim 1, characterized in that, The clamping assembly includes: A retaining structure (113) is connected to the moving module (112) and is used to hold the moving module (112) in a target position. The two clamping modules (111) are used to clamp the material along the first direction (X) when the moving module (112) is in the target position.

3. The clamping assembly according to claim 2, characterized in that, The retaining structure (113) includes a spring (1131) extending along the second direction (Y).

4. The clamping assembly according to any one of claims 1 to 3, characterized in that, When the moving module (112) is driven by the drive component (12) of the transmission mechanism along the second direction (Y), the moving module (112) is used to move along the second direction (Y), and the two clamping modules (111) are used to move along the first direction (X) and move away from each other to release the material.

5. The clamping assembly according to any one of claims 1 to 3, characterized in that, The moving module (112) includes a slide structure (1121), and each of the two clamping modules (111) includes a protrusion structure (1111), at least a portion of which is accommodated in the slide structure (1121) and moves within the slide structure (1121).

6. The clamping assembly according to claim 5, characterized in that, The extension direction of the groove structure (1121) is different from the second direction (Y) and different from the first direction (X).

7. The clamping assembly according to claim 5, characterized in that, The moving module (112) includes two sliding groove structures (1121), which correspond one-to-one with the protrusion structures (1111) of the two clamping modules (111).

8. The clamping assembly according to claim 7, characterized in that, The two groove structures (1121) are at the same angle to the first direction (X).

9. The clamping assembly according to any one of claims 1 to 3, characterized in that, The second direction (Y) is perpendicular to the first direction (X).

10. The clamping assembly according to any one of claims 1 to 3, characterized in that, The clamping assembly further includes: The carrier module (114) and the moving module (112) are stacked together along the third direction (Z) and close to the material. The surface of the carrier module (114) facing the material is the carrier surface (1141).

11. The clamping assembly according to claim 10, characterized in that, The two clamping modules (111) are respectively used to clamp the two oppositely arranged first end faces (223) of the material, and the first end faces (223) are perpendicular to the bearing surface (1141).

12. The clamping assembly according to claim 10, characterized in that, The second direction (Y) and the first direction (X) are both parallel to the bearing surface (1141).

13. The clamping assembly according to any one of claims 1 to 3, characterized in that, The material is the electrode assembly (22) in the battery cell (2).

14. A transmission mechanism, characterized in that, include: The clamping assembly as described in any one of claims 1 to 13.

15. The transmission mechanism according to claim 14, characterized in that, The transmission mechanism further includes: A drive assembly (12) is used to apply a driving force to the clamping assembly, which is used to release the material under the action of the driving force.

16. An apparatus for assembling battery cells, characterized in that, include: The transmission mechanism as described in claim 14 or 15 is used to transfer components of a battery cell to be assembled between different workstations.

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