Electrode core protection sheet assembly system

Abstract

The application discloses an electrode core protection sheet assembling system, which comprises an actuator for separating the electrode core after hot pressing from a first plane of the electrode core protection sheet, wherein the first plane is the plane where the electrode core protection sheet contacts the electrode core during hot pressing; the actuator is also used for assembling the removed electrode core protection sheet with the electrode core to be hot pressed, and the electrode core protection sheet contacts the electrode core to be hot pressed by the first plane during the assembling. By distinguishing the two contact surfaces of the electrode core protection sheet and the electrode core after hot pressing, and making the first plane always contact the electrode core during hot pressing, the cleanliness and flatness of the contact surface of the electrode core protection sheet and the electrode core are maintained, and the electrode core obtains better protection effect.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a core protection sheet assembly system. Background Technology

[0002] In related technologies, the contact surfaces between the electrode core protective sheet and the electrode core are not distinguished during the hot pressing and stacking process of the electrode core, which can easily cause wear on the electrode core and affect its performance. Summary of the Invention

[0003] The problem this application aims to solve is to address the issue of easy wear of the electrode core caused by reassembling the electrode core protection sheet recovered after hot pressing with the electrode core to be hot pressed without distinguishing the contact surfaces. The application provides an electrode core assembly system to further improve the protection of the electrode core.

[0004] The technical solution adopted in this application is as follows:

[0005] A core protection sheet assembly system, comprising:

[0006] An actuator is used to separate the electrode core from the first plane of the electrode core protection sheet after hot pressing, wherein the first plane is the plane in contact with the electrode core during hot pressing;

[0007] The actuator is also used to assemble the removed core protection sheet with the core to be heated and pressed, and to make the core protection sheet contact the core to be heated and pressed from the first plane during assembly.

[0008] Optionally, the actuator is further configured to remove the core protection sheet from the core after hot pressing, and to flip the core protection sheet and / or the core with the core protection sheet so that the first plane of the multiple removed core protection sheets faces the same direction.

[0009] Optionally, the actuator is also used to flip the removed core protection sheet so that the core protection sheet contacts the core from the first plane during assembly.

[0010] Optionally, the actuator includes a first actuator for removing the first protective sheet from the electrode core;

[0011] The first actuator is further configured to pick up and flip the second protective sheet and / or the pole core with the second protective sheet, so that the first planes of the second protective sheet and the first protective sheet face the same direction.

[0012] The first and second protective sheets are respectively disposed on both sides of the electrode core along the thickness direction of the electrode core.

[0013] Optionally, the first actuator includes a first picking mechanism, a second picking mechanism, a first transport mechanism, and a second transport mechanism.

[0014] The first pickup mechanism and the second pickup mechanism are used to simultaneously separate the first plane of the electrode core protection sheet from the electrode core;

[0015] The first transport mechanism is used to transport the electrode core with the electrode core protection sheet to the first pick-up mechanism;

[0016] The second transport mechanism is used to transport the electrode core with the electrode core protection sheet to the second pick-up mechanism.

[0017] Optionally, the actuator includes a second actuator for flipping the electrode core protection sheet so that the first planes of any two electrode core protection sheets face opposite directions.

[0018] Optionally, the second actuator includes a third pickup mechanism and a fourth pickup mechanism. After the third pickup mechanism picks up the electrode core protection sheet, the fourth pickup mechanism takes over from the third pickup mechanism and flips the electrode core protection sheet to change the orientation of the first plane of the electrode core protection sheet.

[0019] Optionally, the electrode core protection sheet assembly system includes a conveying mechanism for conveying multiple electrode core protection sheets with the same first plane orientation to the second actuator. The conveying mechanism is provided with a positioning mechanism for placing multiple electrode core protection sheets with the same first plane orientation.

[0020] Optionally, the actuator includes a third actuator for assembling two core protection sheets with oppositely oriented first planes with the core to be hot-pressed, and making the contact surface between the core protection sheet and the core to be hot-pressed the first plane.

[0021] Optionally, the actuator includes a vacuum suction plate structure.

[0022] The beneficial effects of this application embodiment are as follows: by distinguishing the two contact surfaces of the electrode core protection sheet and the electrode core after hot pressing before participating in the stacking process of the electrode core to be hot pressed, the electrode core protection sheet always contacts the first plane with the electrode core during hot pressing, thereby maintaining the cleanliness and flatness of the contact surface between the electrode core protection sheet and the electrode core, so that the electrode core can obtain a better protection effect. In addition, it can also extend the service life of the electrode core protection sheet, reduce the replacement frequency of the electrode core protection sheet, and achieve dual optimization of production yield and cost control.

[0023] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0026] Figure 1 This is an exemplary embodiment of a core assembly system provided in this disclosure;

[0027] Figure 2 This is a first actuator structure provided in an exemplary embodiment of the present disclosure;

[0028] Figure 3 This is a third transport mechanism structure provided in an exemplary embodiment of the present disclosure;

[0029] Figure 4 This is a second actuator structure provided in an exemplary embodiment of the present disclosure;

[0030] Figure 5 This is a transmission mechanism structure provided in an exemplary embodiment of the present disclosure;

[0031] Figure 6 This is a vacuum suction plate structure provided in an exemplary embodiment of the present disclosure;

[0032] Figure 7 This is an exemplary embodiment of the present disclosure that provides a core protection sheet structure;

[0033] Figure 8 This is a method provided in an exemplary embodiment of the present disclosure to ensure that the electrode core protection sheet always contacts the electrode core with a first plane.

[0034] The reference numerals in the accompanying drawings are as follows:

[0035] 1. Actuator; 11. First Actuator; 111. First Pick-up Mechanism; 112. Second Pick-up Mechanism; 113. First Transport Mechanism; 114. Second Transport Mechanism; 12. Second Actuator; 121. Third Pick-up Mechanism; 122. Fourth Pick-up Mechanism; 13. Third Actuator; 14. Conveying Mechanism; 2. Core Protector; 21. First Protector; 22. Second Protector; 201. First Plane; 202. Second Plane; 2001. Angled Cut; 31. Heat-pressed Core; 32. Core to be Heat-pressed; 4. Pick-up Platform; 5. Vacuum Suction Cup. Detailed Implementation

[0036] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0037] In existing technologies, the fabrication of electrode cores requires stacking positive and negative electrode sheets and a separator on a lamination table to form the electrode core. The electrode core is then transferred to a hot pressing table for hot pressing. If the electrode core is directly transferred from the lamination table to the hot pressing table using a transport mechanism, there are problems such as damage from the hot pressing plate and damage to the electrode core caused by the transport mechanism's handling. Therefore, a protective sheet needs to be attached to the electrode core surface, ensuring that the hot pressing plate contacts the protective sheet rather than the electrode core directly, preventing damage. This also avoids direct contact between the transport mechanism and the electrode core, preventing indentations. For energy conservation, the protective sheet needs to be removed and recycled after hot pressing. However, during recycling, the surface of the protective sheet that contacts the hot pressing plate may be damaged. When this surface is reassembled and hot-pressed with the electrode core, it can affect the electrode core.

[0038] Therefore, embodiments of this application provide a core protection sheet assembly system and a method for ensuring that the core protection sheet always contacts the core with a first plane. Figure 1-6 As shown, the electrode core protection sheet assembly system includes an actuator. The actuator 1 is used to separate the electrode core after hot pressing from the first plane 201 of the electrode core protection sheet (i.e., the plane that directly contacts the electrode core during hot pressing). On the other hand, it also assembles the removed electrode core protection sheet with the electrode core to be hot pressed. Throughout the entire process from the separation of the electrode core protection sheet from the hot-pressed electrode core 31 to the assembly of the electrode core protection sheet onto the electrode core 32 to be hot-pressed, the contact surface between the electrode core protection sheet and the electrode core 32 to be hot-pressed is always the first plane 201, and the contact surface between the electrode core protection sheet and the hot pressing equipment is always the second plane 202. After the electrode core hot pressing is completed, when the actuator 1 removes the electrode core protection sheet, it strictly distinguishes the contact surface between the electrode core protection sheet and the electrode core—the first plane 201—and the contact surface between the electrode core protection sheet and the hot pressing equipment—the second plane 202. The electrode core protection sheet is only allowed to contact the electrode core surface through the first plane 201. This avoids the problem of damage to the electrode core caused by wear, foreign matter adhesion, or pin indentation on the second plane 202. This allows the electrode core surface to maintain its original smoothness during the hot pressing and stacking process, reducing the risk of battery short circuit caused by defects on the surface of the protection sheet. At the same time, the service life of the electrode core protection sheet can also be further extended, thereby reducing the cost of consumables.

[0039] In one embodiment disclosed in this application, after the electrode core hot pressing process is completed, the actuator 1 separates the electrode core protective sheet from the electrode core surface through precise clamping and flipping control, and performs a flipping operation on the separated electrode core protective sheet or the electrode core assembly with the electrode core protective sheet. Through this flipping action, the first plane 201 of all removed electrode core protective sheets is uniformly adjusted to the same orientation. This design eliminates the need to additionally identify the first plane of different electrode core protective sheets in subsequent assembly processes, avoiding problems such as assembly misalignment and misuse of the bonding surface caused by confusion of the front and back of the protective sheet from the beginning. Optionally, the first plane 201 of multiple removed electrode core protective sheets are placed facing upwards on the platform, with their contact surface with the electrode core exposed upwards, facilitating rapid screening of the surface condition of the electrode core protective sheets, such as indentations and contamination.

[0040] In one embodiment disclosed in this application, the actuator 1 is further configured to flip the removed core protection sheet with the same orientation as the first plane 201, so that the core protection sheet contacts the core from the first plane during assembly. This flipping operation allows adjustment of the orientation of the first plane 201 of the core protection sheet, ensuring that the core protection sheet is bonded to the core with the same contact surface (i.e., the first plane 201) after assembly. Through precise clamping and flipping coordinated control, the entire process of core protection sheet separation, orientation adjustment, and assembly can be automated.

[0041] In one embodiment disclosed in this application, the actuator 1 includes a first actuator 11, a second actuator 12, and a third actuator 13, which work together to perform the actions of picking up the wafer, flipping it over, and assembling it. Through the parallel operation of multiple actuators, each process can run independently without interference. For example, while the second actuator 12 flips the current protective wafer, the first actuator 11 can simultaneously perform the wafer picking action for the next electrode core, thereby significantly shortening the single operation cycle and improving overall production efficiency. Furthermore, this division of labor allows for optimization of the actuator's structural design according to the needs of each process.

[0042] In another embodiment disclosed in this application, the actuator 1 can complete the entire process from wafer picking to assembly using a single integrated mechanism. Optionally, a multi-degree-of-freedom robotic arm combined with a multi-functional gripper of an end effector can achieve integrated control of wafer picking, flipping, and assembly. This solution reduces the number of actuators in the equipment, simplifies the mechanical structure layout, and is particularly suitable for space-constrained production scenarios, while also reducing the complexity of system debugging and maintenance. Although the cycle time efficiency of the single-mechanism mode may be slightly lower than that of the division of labor mode, its compact design has significant cost advantages in small-batch production or flexible production lines.

[0043] Optionally, in another embodiment disclosed in this application, after the actuator 1 removes the protective sheet from the electrode core, it does not need to temporarily place it on the transfer platform, but is directly transported to the electrode core to be hot-pressed for assembly. By omitting the intermediate placement step, not only is contamination or scratches that may occur when the protective sheet comes into contact with the platform surface during transportation avoided, but the idle travel time of the robotic arm is also reduced, further shortening the single operation cycle. In addition, this direct assembly mode can reduce the dependence on the transfer platform and its positioning mechanism, thereby reducing equipment manufacturing costs, while reducing the risk of assembly deviation caused by platform positioning errors and improving process stability.

[0044] In one embodiment disclosed in this application, such as Figure 2 As shown, after the hot pressing section is completed, a first protective sheet 21 and a second protective sheet 22 are respectively attached to both sides of the electrode core along the thickness direction. After the electrode core protective sheets are transported from the hot pressing section and placed on the pick-up platform 4, the first actuator 11 first removes the first protective sheet 21 and places it on a flat surface. At this time, the first flat surface 201 of the first protective sheet 21 faces downward. The first actuator 11 then picks up the electrode core with the second protective sheet 22 and flips it 180 degrees, so that the second protective sheet, which was originally located below the electrode core, is located above the electrode core and placed on the pick-up platform 4. The first actuator 11 then removes the second protective sheet 22 and places it on the pick-up platform 4, so that the first flat surface 201 of the second protective sheet 22 also faces downward. Through the coordinated operation of the electrode core and the electrode core protective sheet by the first actuator 11, efficient separation and unified orientation control of the protective sheets on both sides of the electrode core are achieved. Specifically, after removing the first protective sheet 21, the first actuator 11 can directly place its first flat surface 201 downwards onto the platform without additional flipping. By flipping the entire electrode core with the second protective sheet 180 degrees, the second protective sheet 22, originally located below the electrode core, is placed above it, and then also placed with its first flat surface 201 downwards. This process design simultaneously completes the orientation adjustment and separation of the second protective sheet in a single flipping action, significantly reducing the repetitive steps required for individually flipping or adjusting the orientation of each protective sheet. It also ensures that the first flat surfaces of both protective sheets are aligned, allowing the mechanical gripping mechanism to quickly identify and pick up the protective sheets during subsequent assembly. This ensures consistency between the contact surface between the protective sheet and the electrode core to be hot-pressed, improves the continuity and stability of the assembly process, and avoids assembly misalignment or misuse of contact surfaces due to differences in the orientation of the protective sheets, thereby improving assembly accuracy and efficiency.

[0045] In one embodiment disclosed in this application, such as Figure 2As shown, the first actuator 11 includes a first pickup mechanism 111, a second pickup mechanism 112, a first transport mechanism 113, and a second transport mechanism 114. The first transport mechanism 113 and the second transport mechanism 114 have transport grippers to transport the electrode core and the electrode core protection sheet, and can also move between different devices. The specific structure is as follows. Figure 3 As shown, the first transport mechanism 113 transports the hot-pressed electrode core 31 with the first protective sheet 21 and the second protective sheet 22 to the first pick-up mechanism 111. The first pick-up mechanism 111 removes the first protective sheet 21 from the electrode core and places the first protective sheet 21 with its first flat surface 201 facing downwards. Subsequently, the second transport mechanism 114 picks up the electrode core and performs a 180-degree flip operation, moving the second protective sheet 22, which was originally located below the electrode core, to above the hot-pressed electrode core 31, and simultaneously adjusting its first flat surface to face downwards. The second pick-up mechanism 112 then removes the second protective sheet 22 and keeps its first flat surface 201 facing downwards. During this process, the first pick-up mechanism 111 simultaneously processes the first protective sheet 21 on another electrode core transported by the first transport mechanism 113, realizing the parallel disassembly of the protective sheets of the two electrode cores. Through the aforementioned coordinated actions, the first pickup mechanism 111 and the second pickup mechanism 112 can simultaneously and continuously operate the protective sheets on different pole cores. This not only shortens the time interval between single protective sheet removals but also avoids secondary adjustments caused by confusion in the orientation of the protective sheets during subsequent assembly by ensuring that the first plane 201 faces downwards. This significantly improves assembly efficiency and process consistency. Furthermore, the parallel processing mechanism of the dual-station effectively reduces equipment idle waiting time, making the cycle matching of the hot pressing section and the stacking section smoother and optimizing the overall production capacity.

[0046] In another embodiment disclosed in this application, the first actuator 11 includes multiple picking mechanisms for simultaneously picking up multiple electrode core protection sheets. These multiple picking mechanisms are a parallel array of vacuum chucks, each chuck being independently controlled, capable of simultaneously gripping multiple electrode core protection sheets, and suitable for high-cycle production lines.

[0047] In one embodiment disclosed in this application, the first picking mechanism 121 and the second picking mechanism 122 of the first actuator 11 adopt a dual-station collaborative operation mode. A synchronous drive device controls both mechanisms to simultaneously pick up the hot-pressed electrode core protection sheet. After picking up the sheet, a rotational joint is used to perform a rotational action, placing both electrode core protection sheets simultaneously on the conveying mechanism 14. The positioning structure on the conveying mechanism 14 confirms that the electrode core protection sheets are placed with the second plane 202 facing upwards and the first plane 201 facing downwards. This design, through the coordinated control of synchronous rotation and synchronous release, avoids the redundant actions of repeatedly adjusting the angle in traditional single-station operations and ensures the directional stability of the protection sheet during the conveying process, improving the continuity and efficiency of the electrode core protection sheet from picking to conveying.

[0048] In one embodiment disclosed in this application, such as Figure 1 , Figure 4 As shown, the electrode core protection sheet assembly system includes a conveying mechanism 14. The conveying mechanism 14 is used to transport multiple electrode core protection sheets with their first plane 201 facing downwards to the second actuator. The conveying mechanism 14 is equipped with a positioning mechanism. The positioning mechanism of the conveying mechanism 14 is adapted to the edge contour of the electrode core protection sheet through a limiting and guiding structure, so that the electrode core protection sheet can only be accurately placed on the conveying mechanism with its first plane 201 facing downwards. In one embodiment disclosed in this application, the positioning mechanism is adapted as follows: Figure 6 The diagram shows a core protection sheet 2 with a diagonal bevel 2001. This design uses a simple physical constraint to forcibly constrain the placement direction of the core protection sheet, forming a foolproof mechanism. This ensures that the first plane of all core protection sheets passing through the second actuator 12 is initially placed downwards. This foolproof design not only eliminates the risk of directional deviation caused by human or mechanical errors, but also allows the second actuator 12 to directly and accurately flip the sheet without additional correction steps during subsequent flipping operations. Therefore, the entire system improves assembly efficiency while reducing the assembly error rate caused by incorrect orientation.

[0049] In one embodiment disclosed in this application, such as Figure 1 As shown, when multiple protective core sheets with their first plane 201 facing downwards arrive at the second actuator via the conveying mechanism, the second actuator 12 selects one of every two protective core sheets with their first plane facing downwards for a flipping operation, so that one of the two protective core sheets has its first plane 201 facing upwards and the other has its first plane 201 facing downwards. The second actuator 12 pre-adjusts the first planes of some protective core sheets to opposite orientations through this flipping operation, allowing the third actuator 13 to directly pick up protective core sheets with different orientations and assemble them onto both sides of the core during the assembly process. Through this design, the protective sheets on both sides of the core can directly contact the core surface with their first planes, eliminating the need for additional flipping operations during assembly. This method not only reduces the steps and time consumed in the assembly process but also avoids the risk of protective sheet positioning misalignment or surface damage caused by multiple flips. Furthermore, due to the simplified assembly process, the overall system complexity is reduced, equipment operational stability and maintenance costs are optimized, further improving production efficiency and process reliability.

[0050] In one embodiment disclosed in this application, such as Figure 4As shown, the second actuator 12 includes a third pickup mechanism 121 and a fourth pickup mechanism 122. The third pickup mechanism 121 picks up the electrode core protection sheet from the conveying mechanism or positioning station through vacuum adsorption or mechanical clamping, and lifts it vertically to a preset height. The fourth pickup mechanism 122 then moves horizontally to below the protection sheet and forms a positional docking with the third pickup mechanism 121 through synchronous lifting control. After the two are spatially aligned, the third pickup mechanism 121 releases the electrode core protection sheet, while the fourth pickup mechanism 122 receives the electrode core protection sheet through adsorption or clamping action, and drives the fourth pickup mechanism to rotate 180 degrees around the horizontal axis through a rotation drive unit, so that the first plane 201 of the electrode core protection sheet changes from facing down to facing up, thereby achieving a precise switch of the orientation of the first plane. The flipped electrode core protection sheet forms a pairing combination with another unflipped protection sheet with opposite orientations. The aforementioned dual-mechanism collaborative flipping mechanism not only avoids the problem of protective sheet shifting or falling off due to inertia during the traditional single-mechanism flipping process, but also achieves uniform force distribution on the protective sheet through the handover flipping action, reducing the risk of surface damage. Simultaneously, this design allows for seamless integration of the flipping operation with preceding and following processes, eliminating the need for additional pauses and further optimizing the production cycle. This ensures that the core protective sheet can be directly picked up in the preset orientation during assembly, significantly reducing the assembly defect rate caused by incorrect orientation.

[0051] In one embodiment disclosed in this application, the third actuator 13 completes the double-sided assembly of the electrode core and the protective sheet by placing the electrode core 32 to be hot-pressed 12 on the surface of the electrode core protective sheet with the first plane 201 facing upwards, and then covering the electrode core with another electrode core protective sheet with the first plane 201 facing downwards. Since the second actuator 12 has pre-adjusted the two electrode core protective sheets to a state where the first planes face opposite directions, the third actuator 13 can directly pick up the two electrode core protective sheets facing opposite directions for assembly without additional flipping operations. Through the coordinated cooperation of the second actuator 12 and the third actuator 13, the third actuator 13 does not need to flip the electrode core protective sheet again during the assembly process, which reduces redundant mechanical steps and avoids the risk of positioning errors or damage to the surface of the electrode core protective sheet caused by multiple flipping. At the same time, the first plane 201 of the electrode core protective sheet always serves as the contact surface and directly adheres to the electrode core, ensuring the consistency of the bonding interface during hot pressing and effectively improving assembly accuracy and yield. In addition, this design simplifies the action logic of the actuator, reduces equipment complexity, and improves overall production efficiency.

[0052] In other embodiments disclosed in this application, the second actuator 12 and the third actuator 13 can be integrated into a single actuator to flip the removed core protection sheet, so that the core protection sheet contacts the core to be heated 32 from its first plane during assembly. The flipping action is achieved by a rotary robotic arm, and after flipping, the first plane of the protection sheet is directly aligned with the two surfaces of the core to be heated in the thickness direction for assembly. By integrating the flipping function of the second actuator 12 and the assembly function of the third actuator 13 into the same actuator, this integrated actuator utilizes the coordinated action of the rotary robotic arm to directly complete the continuous operation of flipping and assembly after picking up the core protection sheet, so that the first plane of the protection sheet can accurately fit the surface of the core to be heated without secondary positioning. This design simplifies the system structure and shortens the single assembly cycle by reducing the material transfer links between equipment modules; in addition, the integrated execution of the flipping and assembly actions reduces the risk of contamination or mechanical damage to the surface of the protection sheet during transportation, which not only improves the consistency of the bonding surface between the core and the protection sheet, but also significantly optimizes the production cycle and energy consumption efficiency by reducing equipment action redundancy.

[0053] In one embodiment disclosed in this application, such as Figure 6 As shown, the actuator 1 employs a vacuum suction plate structure to pick up, flip, and place the electrode core. The surface of the vacuum suction plate is equipped with a suction cup array adapted to the size of the electrode core protection sheet, and the suction force is controlled by a vacuum generator. The arrangement of the suction cup array matches the contour of the first plane edge of the electrode core protection sheet, ensuring uniform pressure distribution during suction. The vacuum suction plate is connected to the main body of the actuator via an adjustable robotic arm, which adjusts the suction angle in real time during the picking, flipping, and placement processes, ensuring that the electrode core protection sheet maintains the preset orientation of the first plane throughout the transfer process. Replacing traditional mechanical clamping with vacuum suction avoids indentations or scratches on the surface of the electrode core protection sheet. The contour-following arrangement of the suction cup array ensures effective suction of the edge areas of protection sheets of different sizes, improving compatibility with products of different specifications. Simultaneously, the adaptive angle adjustment function of the vacuum suction plate works in conjunction with the positioning mechanism on the conveying mechanism, further enhancing the directional consistency of the electrode core protection sheet during assembly and ensuring the accuracy of connections between multiple processes.

[0054] Optionally, in one embodiment disclosed in this application, the second actuator adopts as follows: Figure 6The vacuum suction plate structure 5 shown uses a third pickup mechanism 121 to vacuum-adsorb a protective sheet from a conveyor belt. After the sheet rises to a certain height, a fourth pickup mechanism 122 moves directly below it, and the suction cup contacts the protective sheet for vacuum adsorption. The third pickup mechanism then breaks the vacuum, transferring the protective sheet to the fourth pickup mechanism. A motor then flips the sheet 180°, and a cylinder lifts and lowers it to place it in its final position. This vacuum adsorption design not only avoids surface indentations or scratches on the protective sheet that might result from mechanical clamping, but also ensures a stable posture for the protective sheet during handover and flipping through the uniform distribution of adsorption force, effectively preventing displacement or slippage. Simultaneously, the coordinated control of vacuum adsorption with the motor and cylinder achieves continuity and high precision in the flipping, positioning, and placement of the protective sheet. This simplifies the complexity of the mechanical structure and significantly improves flipping efficiency and assembly consistency, thereby reducing the risk of poor core assembly due to operational errors.

[0055] This application also provides a method for ensuring that the electrode core protection sheet always contacts the electrode core with its first plane, such as... Figure 8 As shown, the process includes: S1. Separating the electrode core after hot pressing from the first plane of the electrode core protection sheet, wherein the first plane is the plane in contact with the electrode core during hot pressing; S2. Assembling the removed electrode core protection sheet with the electrode core to be hot pressed, and ensuring that the electrode core protection sheet contacts the electrode core to be hot pressed from the first plane during assembly.

[0056] In one embodiment disclosed in this application, step S1 includes: after removing the first protective sheet, flipping the electrode core with the second protective sheet so that the second protective sheet, originally located below the electrode core, is placed above the electrode core on the sheet-removing platform, and then removing the second protective sheet, so that the first planes of both the first and second protective sheets are facing downwards; step S2 includes: flipping one of the two electrode core protective sheets with the first plane facing downwards so that its first plane faces upwards, placing the electrode core to be hot-pressed on the electrode core protective sheet with the first plane facing upwards, and then placing the electrode core protective sheet with the first plane facing downwards on the electrode core to be hot-pressed, so that the contact surface between the electrode core protective sheet and the electrode core is always the first plane. This method can locate the contact surface between the electrode core protective sheet and the electrode core when removing the electrode core protective sheet, without the need for additional differentiation of the protective sheet surface, resulting in higher production efficiency, and ensuring that the electrode core protective sheet always contacts the electrode core surface with the first plane, thereby better protecting the electrode core.

[0057] The electrode core protection sheet assembly system and method provided in this application achieve efficient separation and reuse assembly of the electrode core and electrode core protection sheet after hot pressing through the coordinated operation of the actuator, and ensure that the contact surface between the electrode core protection sheet and the electrode core assembly is always the first plane. The actuator integrates separation, flipping, positioning and assembly functions through modular design, and with the vacuum suction plate structure for non-destructive gripping of the protection sheet, it not only ensures the consistency of the contact surface between the electrode core and the protection sheet, but also reduces the risk of assembly misalignment caused by manual intervention. Furthermore, the process optimization shortens the single operation cycle, effectively improving the production yield of battery electrode core modules and the stability of the hot pressing process.

[0058] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0061] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A core protection sheet assembly system, characterized in that, The core protection sheet assembly system includes: An actuator is used to separate the electrode core from the first plane of the electrode core protection sheet after hot pressing, wherein the first plane is the plane in contact with the electrode core during hot pressing; The actuator is also used to assemble the removed core protection sheet with the core to be heated and pressed, and to make the core protection sheet contact the core to be heated and pressed from the first plane during assembly.

2. The electrode core protection sheet assembly system according to claim 1, characterized in that, The actuator is also used to remove the electrode core protection sheet from the electrode core after hot pressing, and to flip the electrode core protection sheet and / or the electrode core with the electrode core protection sheet so that the first plane of the multiple removed electrode core protection sheets faces the same direction.

3. The electrode core protection sheet assembly system according to claim 2, characterized in that, The actuator is also used to flip the removed core protection sheet so that the core protection sheet contacts the core from the first plane during assembly.

4. The electrode core protection sheet assembly system according to any one of claims 1-3, characterized in that, The actuator includes a first actuator, which is used to remove the first protective sheet from the electrode core; The first actuator is further configured to pick up and flip the second protective sheet and / or the pole core with the second protective sheet, so that the first planes of the second protective sheet and the first protective sheet face the same direction. The first and second protective sheets are respectively disposed on both sides of the electrode core along the thickness direction of the electrode core.

5. The electrode core protection sheet assembly system according to claim 4, characterized in that, The first actuator includes a first pickup mechanism, a second pickup mechanism, a first transport mechanism, and a second transport mechanism. The first pickup mechanism and the second pickup mechanism are used to simultaneously separate the first plane of the electrode core protection sheet from the electrode core; The first transport mechanism is used to transport the electrode core with the electrode core protection sheet to the first pick-up mechanism; The second transport mechanism is used to transport the electrode core with the electrode core protection sheet to the second pick-up mechanism.

6. The electrode core protection sheet assembly system according to claim 4, characterized in that, The actuator includes a second actuator, which is used to flip the electrode core protection sheet so that the first planes of any two electrode core protection sheets face opposite directions.

7. The electrode core protection sheet assembly system according to claim 6, characterized in that, The second actuator includes a third pickup mechanism and a fourth pickup mechanism. After the third pickup mechanism picks up the electrode core protection sheet, the fourth pickup mechanism takes over from the third pickup mechanism and flips the electrode core protection sheet to change the orientation of the first plane of the electrode core protection sheet.

8. The electrode core protection sheet assembly system according to claim 6, characterized in that, The electrode core protection sheet assembly system includes a conveying mechanism for conveying multiple electrode core protection sheets with the same first plane orientation to the second actuator. The conveying mechanism is equipped with a positioning mechanism for placing multiple electrode core protection sheets with the same first plane orientation.

9. The electrode core protection sheet assembly system according to claim 6, characterized in that, The actuator includes a third actuator, which is used to assemble two core protection sheets with opposite first plane orientations with the core to be hot-pressed, and to make the contact surface between the core protection sheet and the core to be hot-pressed the first plane.

10. The electrode core protection sheet assembly system according to any one of claims 1-3, characterized in that, The actuator includes a vacuum suction plate structure.

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