Cutting and stacking all-in-one machine

Abstract

The invention discloses a cutting and stacking all-in-one machine which comprises a machine table, and a positive plate processing device, a negative plate processing device, a single-sided plate processing device, a diaphragm processing device, a stacking device, a hot pressing device and a detection device which are arranged on the machine table, the positive plate processing device, the negative plate processing device, the single-sided plate processing device, the diaphragm processing device, the lamination device, the hot pressing device and the detection device are arranged in a plate division mode, a continuous production system is formed by multiple plates, prepared and processed positive plates, negative plates and single-sided plates are conveyed to the lamination device to be prepared into electrode groups in a centralized mode, and redundant electrode plates are cached to the cache assembly. According to the automatic cutting and laminating device, cutting and laminating are automatically completed, hot pressing and detecting can be achieved, cutting, laminating and detecting are integrated, the labor intensity is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a cutting and stacking integrated machine. Background Technology

[0002] As consumer electronics products move towards miniaturization and high energy density, the demand for small battery cells is becoming increasingly urgent. However, the miniaturization of battery cell size poses extremely stringent challenges to its manufacturing process, and existing technologies struggle to achieve a good balance between efficiency, yield, and cost.

[0003] The sequential operation mode of a single stacking station and the stabilization time required for the transfer of electrode groups between processes have affected production efficiency. The current stacking process of the equipment has gradually reached its production cycle limit, and it is difficult to further optimize the overall efficiency of battery production equipment.

[0004] Meanwhile, in the stacking and transfer stages, the miniature electrode sheets and loose electrode assemblies pose a significant challenge to traditional transfer methods. The robotic arms used for gripping, with their miniaturized jaws to accommodate small battery cells, sacrifice gripping force and stability. However, excessive gripping force can damage the electrode sheets or cause misalignment and breakage of the already formed loose electrode assemblies. Existing equipment struggles to guarantee the stability of the electrode assembly structure during the transfer process from the stacking station to the hot-pressing station. Summary of the Invention

[0005] To solve at least one of the above-mentioned technical problems, this application provides a cutting and stacking integrated machine, and the technical solution adopted is as follows.

[0006] The cutting and stacking machine provided in this application includes a machine base, on which the following are integrated: A positive electrode processing device is used to process the positive electrode and output the positive electrode. A negative electrode processing device for processing the negative electrode and outputting the negative electrode; A single-sided sheet processing device for processing the single-sided sheet and outputting the single-sided sheet; A diaphragm processing device for processing the diaphragm or outputting the diaphragm; A stacking device is connected to the output terminals of the positive electrode processing device, the negative electrode processing device, the single-sided sheet processing device, and the separator processing device. The stacking device is used to combine the positive electrode, the negative electrode, the single-sided sheet, and the separator to prepare an electrode assembly. A hot pressing device is connected to the output end of the lamination device, and the hot pressing device is used to hot press the laminations to prepare a battery cell. A detection device is connected to the output end of the hot pressing device, and the detection device is used to perform short circuit detection on the battery cell; The positive electrode processing device, the negative electrode processing device, and the single-sided sheet processing device are all equipped with a buffer component.

[0007] In some embodiments of this application, the detection device includes: A cell positioning assembly is used to position the battery cell; A short-circuit test assembly is used to connect the battery cell to a test circuit and perform short-circuit detection. Thickness measuring component, used to measure the thickness of the battery cell.

[0008] In some embodiments of this application, the stacking device includes a stacking stage for supporting the positive electrode, the negative electrode, the single-sided sheet, and the separator, wherein: The stacking stage is fixedly mounted on the machine base; or... The stacking stage is configured to be movably mounted on the machine platform, and the stacking stage is configured to be movable and transport the electrode assembly to the hot pressing device.

[0009] In some embodiments of this application, the cutting and stacking machine includes a transfer device, which includes a frame, a track, and a transfer rack. The frame is fixed to the machine base; The track is set on the frame, and the transfer frame is capable of moving on the track; The transfer frame is provided with a gripping part, which is used to pick up the electrode assembly, and the transfer frame is used to transfer the electrode assembly to the hot pressing device.

[0010] In some embodiments of this application, the stacking device includes a transfer carrier for transferring the electrode assembly. The transfer carrier includes an upper pressure plate and a lower pressure plate disposed opposite to each other, the upper pressure plate and the lower pressure plate being used to clamp the electrode assembly from both sides.

[0011] In some embodiments of this application, the laminating device is provided with a transfer carrier buffer assembly, and unused transfer carriers are placed in the transfer carrier buffer assembly. A laminating transport assembly and a transfer carrier transport assembly are provided between the laminating device and the hot pressing device.

[0012] In some embodiments of this application, the positive electrode processing device, the negative electrode processing device, and the single-sided sheet processing device each include an unwinding assembly, a cutting assembly, a first correction assembly, a die-cutting assembly, a surface treatment assembly, and a detection assembly arranged sequentially along the material flow direction; The input end of the surface treatment component is connected to the output end of the die-cutting component, and the surface treatment component is used to remove surface impurities and static electricity from the material. The input end of the detection component is connected to the output end of the surface treatment component, and the detection component is used to observe and record whether the surface of the material is flat.

[0013] In some embodiments of this application, the positive electrode processing device, the negative electrode processing device, and the single-sided sheet processing device further include a defective product buffer component and a replacement mechanism; The patching mechanism includes a first patching buffer component and a second correction component. The first patching buffer component is used to buffer and replenish the material, and the second correction component is used to correct the material output by the first patching buffer component.

[0014] In some embodiments of this application, the positive electrode processing device includes a third correction component and a fourth correction component, and the diaphragm processing device includes a diaphragm bonding component and a first thermal composite component. The output of the detection component is connected to the input of the third correction component; The output of the third correction component is connected to the input of the fourth correction component; The output end of the fourth correction component is connected to the input end of the diaphragm processing device. The diaphragm bonding component is used to cover the two sides of the positive electrode sheet with the diaphragm. The first thermal composite component is used to hot press the diaphragm and the positive electrode sheet to prepare a positive electrode sheet with a diaphragm.

[0015] In some embodiments of this application, the stacking device includes a fifth correction component, which is used to correct the deviation of the positive electrode with diaphragm, the negative electrode output by the negative electrode processing device, and the single-sided sheet output by the single-sided sheet processing device.

[0016] This application has at least the following beneficial effects: Multiple device modules are integrated on the machine, forming a continuous production system that avoids external damage such as scratches, wrinkles, drops, and dust contamination caused by transportation. The pre-processing of positive electrode sheets, negative electrode sheets, and single-sided sheets is performed in parallel and synchronously. After completion, the pre-processing is input into a buffer component to continuously supply material to the stacking device, minimizing equipment idle time. After the stacking device outputs the stacked sheets, they are hot-pressed by a hot-pressing device. By integrating the detection device after the hot-pressing device, the cells are immediately sent to the detection station after hot-pressing, enabling immediate testing of circuit performance, improving the final product yield and performance consistency, and preventing batch quality accidents. The entire process of cell stacking, hot-pressing, detection, and sorting is completed within the same machine, avoiding the risks of vibration, collision, and clamping damage caused by multiple manual or robotic transfers.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The present application will be further illustrated below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0019] Figure 1 This is a diagram of a cutting and stacking integrated machine; Figure 2 for Figure 1 Enlarged view of point a in the middle; Figure 3 for Figure 1 Enlarged view at point b; Figure 4 for Figure 1 Enlarged view at point c; Figure 5 for Figure 1 Enlarged view at point d; Figure 6 for Figure 1 Enlarged view at point e in the middle; Figure 7 Diagram of the transfer vehicle; Figure 8 This is a diagram of the transfer device.

[0020] Attached label: Machine 001; Positive electrode sheet processing device 100; unwinding assembly 110; first unwinding assembly 111; cutting assembly 120; first cutting assembly 121; first correction assembly 130; first positive electrode sheet correction assembly 131; third correction assembly 132; fourth correction assembly 133; die-cutting assembly 140; first die-cutting assembly 141; surface treatment assembly 150; first upper surface treatment assembly 151; first lower surface treatment assembly 152; detection assembly 160; first upper surface detection assembly 161; first lower surface detection assembly 162; waste discharge assembly 170; positive electrode sheet buffer assembly 180; Negative electrode processing device 200; negative electrode transport assembly 210; negative electrode buffer assembly 220; Single-sided sheet processing device 300; single-sided sheet transport assembly 310; flipping assembly 320; marking assembly 330; Diaphragm processing device 400; diaphragm bonding assembly 410; first thermal bonding assembly 420; diaphragm cutting assembly 430; diaphragm cutting and detection assembly 440; Stacking device 500; stacking table 510; transfer carrier 520; upper pressure plate 521; lower pressure plate 522; connector 523; transfer carrier buffer assembly 530; fifth correction assembly 540; Hot pressing device 600; transfer carrier transport assembly 610; cleaning and transport assembly 611; second hot composite assembly 620; Testing device 700; cell positioning assembly 710; short circuit testing assembly 720; thickness measuring assembly 730; adhesive application assembly 740; side adhesive application section 741; surface adhesive application section 742; QR code application section 743; cell testing assembly 750; cell transfer carrier 760; cell transfer carrier buffer assembly 761; Transport component 800; First transport component 810; Second transport component 820; Third transport component 830; Fourth transport component 840; Fifth transport component 850; Sixth transport component 860; Seventh transport component 870; Unloading transport component 880; Transfer robot 900; First transfer robot 910; Second transfer robot 920; Third transfer robot 930; Fourth transfer robot 940; Fifth transfer robot 950; 1000 defective product cache components; The patching mechanism 1100; the first patch buffer assembly 1110; the first bottom single-sided patch buffer assembly 1111; the first top single-sided patch buffer assembly 1112; the second correction assembly 1120; and the second patch buffer assembly 1130. First pitch control assembly 1210; Second pitch control assembly 1220; Third pitch control assembly 1230; Transfer device 1300; frame 1310; transfer rack 1320; guide rail 1330. Detailed Implementation

[0021] The following is combined Figures 1 to 8 The embodiments of this application are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] Combination Figures 1 to 6 As shown, the integrated cutting and stacking machine provided in this application is used to process positive electrode sheets, negative electrode sheets, single-sided sheets, separators and output cells, including machine base 001.

[0027] The machine 001 integrates: Positive electrode processing device 100 is used to process positive electrode sheets and output positive electrode sheets; A negative electrode processing device 200 is used to process negative electrode sheets and output negative electrode sheets. Single-sided sheet processing device 300, used to process single-sided sheets and output single-sided sheets; Diaphragm processing device 400, used for processing or outputting diaphragms; The lamination device 500 is connected to the output terminals of the positive electrode processing device 100, the negative electrode processing device 200, the single-sided electrode processing device 300, and the separator processing device 400. The lamination device 500 is used to combine the positive electrode, negative electrode, single-sided electrode, and separator to prepare an electrode assembly. The hot pressing device 600 is connected to the output end of the stacking device 500. The hot pressing device 600 is used to hot press the electrode group to prepare the battery cell. The detection device 700 is connected to the output terminal of the hot pressing device 600, and the detection device 700 is used to perform short circuit detection on the battery cell.

[0028] Therefore, the integrated cutting and stacking machine of this application first feeds in untreated positive electrode sheets, negative electrode sheets, single-sided sheets, and separators. The electrode sheet processing device 100, negative electrode sheet processing device 200, and single-sided sheet processing device 300 simultaneously and independently process the three raw materials. Then, the raw materials are sequentially subjected to cutting, correction, die-cutting, surface cleaning and static electricity removal, and online detection. During this process, buffer components in each device buffer the materials that pass the inspection. When the detection component identifies defective products, it removes the defective products and replenishes them with qualified materials, thereby ensuring that all materials fed to subsequent processes are of good quality, guaranteeing the continuity and stability of the production flow.

[0029] The materials include positive electrode plates, negative electrode plates, and single-sided plates.

[0030] First, the qualified positive electrode sheet, negative electrode sheet, and single-sided sheet are respectively fed to the input end of the stacking device 500. The stacking device 500 precisely combines and stacks the qualified positive electrode sheet, negative electrode sheet, single-sided sheet, and separator according to a predetermined sequence and trajectory to prepare an electrode assembly. Among them, the positive electrode sheet, after passing the inspection, is combined with the separator and then fed to the stacking device 500.

[0031] Next, the prepared electrode assembly is transferred to a hot pressing device 600. The hot pressing device 600 is adjusted to a preset temperature and pressure to ensure tight bonding between the electrode assemblies, ultimately producing a structurally stable battery cell.

[0032] Third, after hot pressing, the battery cell is sent to the testing device 700. The battery cell is first precisely positioned, and then its thickness is measured and online short-circuit tested sequentially; all test data is recorded and analyzed in real time. The testing device 700 of this application integrates multiple functions such as battery cell positioning, short-circuit testing, and thickness measurement.

[0033] Fourth, the battery cells are automatically sorted according to the test results. Qualified battery cells are output and await unloading, while unqualified battery cells are rejected and sent to the defective product buffer.

[0034] Specifically, the positive electrode processing device 100 processes the positive electrode and outputs a positive electrode that can be used to prepare an electrode assembly, the negative electrode processing device 200 processes the negative electrode and outputs a negative electrode that can be used to prepare an electrode assembly, and the single-sided sheet processing device 300 processes the single-sided sheet and outputs a single-sided sheet that can be used to prepare an electrode assembly.

[0035] The machine 001 is also equipped with a transport component 800. The positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 all include the transport component 800. Materials are transported via the transport component 800. After the positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 correct the alignment of the positive electrode, negative electrode, and single-sided sheet respectively, they are transported via the transport component 800 to the positive electrode buffer component 180 and the negative electrode buffer component 220 respectively. The single-sided sheet is buffered on the single-sided sheet transport component 310, ready for the stacking device 500 to pick up and combine for stacking. The positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 are designed with buffer components. The integrated cutting and stacking machine of this application can operate multiple devices simultaneously. The prepared positive electrode, negative electrode, and single-sided sheet can be placed in the buffer components, ready for the stacking device 500 to pick up and use for preparing electrode assemblies.

[0036] After passing inspection, the positive electrode sheet is combined with the separator and then conveyed to the stacking unit 500. The separator completely separates the positive and negative electrode sheets, preventing direct contact between them and thus avoiding internal short circuits. The separator processing unit 400 can not only output separators but also cut and trim them, and perform surface inspection on the separators to check for defects such as exposed foil, scratches, and holes.

[0037] The transport component 800 can be transported by belt and is set in a vacuum environment. Vacuum transport avoids the influence of airflow, prevents airflow from blowing up the material or diaphragm, and also achieves a dustproof function.

[0038] In the prepared electrode assembly, the material and the separator are placed parallel to each other, and the positive electrode and the negative electrode are placed alternately. The electrode assembly includes two single-sided plates, which are set on both sides of the prepared electrode assembly and are adjacent to the positive electrode. The material and the separator are placed parallel to each other, and the separator is set on both sides of each positive electrode.

[0039] After the electrode assembly is prepared by the stacking device 500, it is transported by the transport component 800 to the hot pressing device 600. The hot pressing device 600 is used to hot press the electrode assembly. The hot pressing device 600 applies heat and pressure to the electrode assembly, and the diaphragm and the material in contact with it bond together. Thus, the battery cell is prepared after being subjected to heat and pressure, which improves the structural strength of the battery cell.

[0040] The detection device 700 applies a small test current by contacting the battery cell tabs to perform short circuit detection and measure the internal resistance of the battery cell. If the resistance value is too low, it indicates that there is a micro short circuit inside, and the battery cell is regarded as a defective battery cell. The defective battery cell is placed in the defective product buffer assembly 1000.

[0041] The machine 001 is also equipped with several transfer robots 900. Each transfer robot 900 has a gripping part, which is used to adjust the position, adsorb, and transfer materials or diaphragms. One transfer robot 900 may include multiple gripping parts, which can transfer multiple materials or diaphragms simultaneously. The gripping parts can also be configured as adsorption structures, such as suction cups or vacuum suction cups, to avoid scratches caused by transfer.

[0042] Therefore, the integrated cutting and stacking machine of this application can realize the integrated manufacturing process from raw materials to qualified finished battery cells. The positive electrode processing device 100, negative electrode processing device 200, single-sided sheet processing device 300, separator processing device 400, stacking device 500, hot pressing device 600, and testing device 700 on the machine 001 are set up in sections, forming a continuous production system. Multiple transfer robots 900 and transport components 800 are used for transfer and transportation. A buffer component is set to buffer the processed materials, and a defective product buffer component 1000 is set to collect and buffer defective products, avoiding external damage such as scratches, wrinkles, drops, and dust contamination caused by transfer. The prepared and qualified positive electrode sheets, negative electrode sheets, and single-sided sheets are respectively transported to the stacking device 500 to be centrally prepared into electrode groups, eliminating the time for handling, waiting and loading / unloading between processes. The pretreatment of positive electrode sheets, negative electrode sheets, single-sided sheets, and separators is carried out in parallel and synchronously, continuously feeding the stacking unit 500 and minimizing equipment downtime. After the electrode assembly output from the stacking unit 500, it is hot-pressed by the hot-pressing unit 600. By integrating the detection device 700 after the hot-pressing unit 600, the battery cell is immediately sent to the detection station after hot-pressing, enabling immediate detection of circuit performance, improving the final yield and performance consistency of the product, and avoiding batch quality accidents. The entire process of battery cell stacking, hot pressing, detection, and sorting is completed within the same machine, avoiding the risks of vibration, collision, and clamping damage caused by multiple manual or mechanical transfers. The detection device 700, integrated downstream of the hot-pressing unit 600, can detect defective products immediately, facilitating rapid identification of the cause, such as whether it is caused by electrode misalignment, burrs, contamination, etc. Once discovered, the parameters of the preceding process can be adjusted immediately to prevent the continuous production of large batches of defective battery cells.

[0043] Specifically, the positive electrode processing device 100, the negative electrode processing device 200, and the single-sided sheet processing device 300 all include an unwinding assembly 110, a cutting assembly 120, a first correction assembly 130, a die-cutting assembly 140, a surface treatment assembly 150, and a detection assembly 160 arranged sequentially along the material flow direction. The input end of the surface treatment component 150 is connected to the output end of the die-cutting component 140. The surface treatment component 150 is used to remove surface impurities and static electricity from the material. The input end of the detection component 160 is connected to the output end of the surface treatment component 150. The detection component 160 is used to observe and record whether the surface of the material is flat.

[0044] Combination Figure 1 and Figure 2 As shown, in the positive electrode processing apparatus 100, the first unwinding assembly 111 is used for unwinding the positive electrode sheet. The material of the positive electrode sheet is mounted on a shaft and is driven to unwind by the driving structure of the first unwinding assembly 111. During the unwinding process, the material of the positive electrode sheet maintains a preset constant tension to prevent the positive electrode sheet from deforming due to excessive tension or loosening due to insufficient tension. Figure 3 , Figure 4 As shown, the unwinding assembly 110 in the negative electrode processing device 200 and the single-sided sheet processing device 300 is used for unwinding the negative electrode sheet and the single-sided sheet, respectively. The materials of the negative electrode sheet and the single-sided sheet are respectively mounted on the shaft and driven by the drive structure to unwind, and each maintains its own preset constant tension.

[0045] Combination Figure 1 and Figure 2 As shown, in the positive electrode processing device 100, the first cutting component 121 is used to cut the material of the positive electrode sheet. The first cutting component 121 performs preliminary cutting on the material of the positive electrode sheet. It can use laser cutting or metal material cutting to cut the material of the positive electrode sheet into multiple positive electrode sheets of a preset size, which are then transported to the first correction component 130 through the first transport component 810.

[0046] Furthermore, the transport assembly 800 for transporting the positive electrode sheet, negative electrode sheet, single-sided sheet, and separator is a vacuum belt transport structure. The cutting components in the negative electrode sheet processing device 200 and the single-sided sheet processing device 300 are used to cut the materials of the negative electrode sheet and the single-sided sheet, respectively, to a preset size. Both are transported to their respective first correction assembly 130 via the vacuum belt transport structure. Vacuum transport avoids the influence of airflow and prevents airflow from blowing up the materials or separator, and also achieves a dust prevention function.

[0047] Combination Figure 1 and Figure 2 As shown, in the positive electrode processing device 100, the first correction component 130 is the first positive electrode correction component 131. The first transfer robot 910 places the positive electrode from the first transport component 810 to the first positive electrode correction component 131. The first correction component 130 is a mechanical correction component in the YR direction. The Y direction is as follows: Figure 1As shown, the R direction is the direction of deflection of the positive electrode sheet's symmetry axis starting from the X direction. Mechanical correction in the YR direction involves adjusting the material's position in the Y and R directions. In the first positive electrode sheet correction assembly 131, mechanical correction is achieved by the first transfer robot 910 using a gripping part or a toggle structure on the first transfer robot 910 to fine-tune the displacement or angle of the material placed in the first correction assembly 130, thus correcting the Y and R directions. This ensures the material enters subsequent processing at a preset Y-direction position and a preset R-direction angle, avoiding waste of the entire sheet of material due to errors. Combined with... Figure 3 , Figure 4 As shown, the first correction component 130 in the negative electrode processing device 200 and the single-sided sheet processing device 300 corrects the YR direction of the negative electrode sheet and the single-sided sheet, respectively.

[0048] Combination Figure 1 and Figure 2 As shown, the second transfer robot 920 transfers the positive electrode sheet from the first positive electrode sheet correction assembly 131 to the first die-cutting assembly 141.

[0049] Combination Figure 1 and Figure 2 As shown, in the positive electrode processing device 100, the first die-cutting component 141 further cuts the positive electrode sheet, precisely cutting out the shape, tab shape, and number of the positive electrode sheet using a mold to form the positive electrode sheet. The die-cutting components 140 in the negative electrode processing device 200 and the single-sided sheet processing device 300 further cut the negative electrode sheet and the single-sided sheet, respectively.

[0050] The die-cutting component 140 can be laser-cut, which has no mechanical stress and produces fine cuts. Alternatively, it can be punched using metal molds, which is lower in cost and more efficient.

[0051] The waste material cut by the die-cutting component 140 is conveyed to the waste discharge component 170.

[0052] In the positive electrode processing device 100, the first surface treatment component removes impurities and static electricity from the surface of the positive electrode. For example, a combination of an ion blower, a vacuum nozzle, and a soft brush can be used to blow away dust and debris at high speed, while simultaneously vacuuming them away to prevent secondary contamination. Static electricity can be removed using an ion blower, which generates positive and negative ion flows to neutralize the high static charge generated on the material surface due to friction. The surface treatment components 150 in the negative electrode processing device 200 and the single-sided electrode processing device 300 respectively remove surface impurities and static electricity from the negative electrode and the single-sided electrode.

[0053] In the positive electrode processing device 100, the first detection component is used to detect surface defects in the positive electrode. For example, a CCD vision sensor can be used to scan the positive electrode, compare the captured image with a preset standard positive electrode drawing, and automatically detect and record the position of the tab, whether the dimensions are out of tolerance, and whether there are defects such as exposed foil, scratches, holes, uneven coating, dirt, and excessive burrs. The detection components 160 in the negative electrode processing device 200 and the single-sided electrode processing device 300 respectively perform surface defect detection on the negative electrode and the single-sided electrode.

[0054] Combination Figure 2 As shown, the first surface treatment assembly includes a first upper surface treatment assembly 151 and a first lower surface treatment assembly 152; the first detection assembly includes a first upper surface detection assembly 161 and a first lower surface detection assembly 162. A third transfer robot 930 transfers the positive electrode sheet from the first die-cutting assembly 141 to the second transport assembly 820. The second transport assembly 820 sequentially passes through the first upper surface treatment assembly 151 and the first upper surface detection assembly 161, and is then transferred by a fourth transfer robot 940 to the first lower surface treatment assembly 152 and the first lower surface detection assembly 162. The positive electrode sheet, after surface treatment by the surface treatment assembly 150 and detection by the detection assembly 160, can be placed in the first positive electrode sheet buffer assembly. The negative electrode sheets and single-sided sheets in the negative electrode sheet processing device 200 and the single-sided sheet processing device 300 undergo sequential surface treatment and detection of their upper and lower surfaces. The materials after surface treatment and detection are placed in the corresponding material buffer assemblies.

[0055] In some embodiments, the positive electrode processing device 100, the negative electrode processing device 200, and the single-sided electrode processing device 300 further include a defective product buffer assembly 1000 and a replacement mechanism 1100. After the detection assembly 160 detects that the material is defective, the defective product is placed in the defective product buffer assembly 1000. Defective products include materials with errors in tab position or dimensional deviations, materials with defects such as exposed foil, scratches, holes, uneven coating, materials with dirt, and materials with excessive burrs, etc.

[0056] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the patching mechanism 1100 includes a first patch buffer component 1110 and a second correction component 1120. The first patch buffer component 1110 is used to buffer replenishment material, and the second correction component 1120 is used to correct the material output from the first patch buffer component 1110. The corrected material is used to replace the defective product. The material buffered in the first patch buffer component 1110 comes from materials produced during the manufacturing process or from finished materials not produced in this application.

[0057] The positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 also include a pitch-changing assembly. The pitch-changing assembly uses a transfer robot 900 to adjust the distance between materials via a gripping part or a tossing structure. The pitch-changing assembly is used to adjust the distance between multiple positive electrode sheets, multiple negative electrode sheets, or multiple single-sided sheets, providing operating space for subsequent processes. Specifically, the pitch-changing assembly can adjust the distance of materials at a designated pitch-changing position via the transfer robot 900, or it can adjust the distance of materials resting on the transport assembly 800 via the transfer robot 900.

[0058] Both the negative electrode processing device 200 and the single-sided sheet processing device 300 include a first pitch-changing component 1210. After processing by the first pitch-changing component 1210, the spacing between negative electrode sheets and between single-sided sheets becomes wider. The conveying device simultaneously conveys multiple materials. The structures used for conveying materials have a preset width, and the pitch is changed to adapt to the width required for conveying and transporting during stacking. The negative electrode sheet conveying component 210 extends to the stacking device 500 position, where negative electrode sheets are buffered and await stacking. The single-sided sheet conveying component extends to the stacking device 500 position, where single-sided sheets are buffered and await stacking. The single-sided sheets can have their pitch changed at the single-sided sheet conveying position.

[0059] In the positive electrode processing device 100, the second pitch-changing component 1220 is used to widen the spacing between multiple positive electrode sheets. The second pitch-changing component 1220 widens the spacing between the positive electrode sheets in order to reserve the width for membrane lamination, which is used for subsequent lamination of the membrane on the upper and lower surfaces of the positive electrode sheets. The positive electrode sheets after pitch-changing are transported to the next process by the third transport component 830.

[0060] In some embodiments, the positive electrode processing device 100 includes a third correction component 132 and a fourth correction component 133, and the separator processing device 400 includes a separator bonding component 410 and a first thermal bonding component 420. The positive electrode that has passed the inspection by the first lower surface detection component 162 is transported to the third transport component 830 after undergoing a pitch change. The output terminal of the third transport component 830 is connected to the input terminal of the third correction component 132; the output terminal of the third correction component 132 is connected to the input terminal of the fourth correction component 133. The output of the fourth correction component 133 is connected to the input of the diaphragm processing device 400. The diaphragm bonding component 410 is used to cover the two sides of the positive electrode sheet with the diaphragm. The first thermal bonding component 420 is used to hot press the diaphragm and the positive electrode sheet to prepare a positive electrode sheet with a diaphragm.

[0061] The positive electrode sheet output by the positive electrode sheet processing device 100 is sequentially corrected by the third correction component 132 and the fourth correction component 133. The diaphragm bonding component 410 is used to cover the two sides of the positive electrode sheet with the diaphragm and pre-press it. The first thermal bonding component 420 is used to hot-press the diaphragm onto the surface of the positive electrode sheet and prepare a positive electrode sheet with a diaphragm.

[0062] The third correction component 132 provides mechanical correction in the YR direction to reduce the deviation error of the positive electrode sheet transported from the third transport component 830, and to reduce the difficulty of the fourth correction component 133 in re-correcting the positive electrode sheet. The fourth correction component 133 provides visual correction and includes a correction sensor, a controller, and an actuator. The correction sensor monitors the edge or centerline position of the positive electrode sheet. If a deviation from the preset position is detected, the controller drives the actuator to swing or translate the positive electrode sheet material, placing it in the preset position and precisely adjusting it to prevent deviation during bonding with the separator. The correction sensor can be a CCD visual sensor.

[0063] When the size of the positive electrode sheet is small, the fourth correction component 133 reduces the spacing between the positive electrode sheets accordingly. The visual correction of the fourth correction component 133 can also identify defective positive electrode sheets. A defective product buffer component 1000 is provided between the fourth correction component 133 and the separator bonding component 410. When the fourth correction component 133 identifies a defective positive electrode sheet, it places the defective product in the defective product buffer component 1000.

[0064] Before the output separator covers the positive electrode sheet, the separator processing device 400 performs OH detection on the separator. OH detection is used to identify micron-level damage or pinholes on the separator, which can be detected by electrical discharge machining or scanning a transmitted image with a CCD camera. By checking the positive electrode sheet with the separator for pinhole defects through OH detection, it ensures that the separator is not damaged during the composite process and prevents potential internal short circuits.

[0065] The separator bonding assembly 410 outputs an uncut, continuous separator, which is first placed on the fourth transport assembly 840. The positive electrode sheet is then placed on top of the separator on the fourth transport assembly 840. The separator bonding assembly 410 then outputs another uncut, continuous separator to cover the positive electrode sheet. During the output of the separator, the separator undergoes preliminary surface inspection. After the positive electrode sheet and separator are bonded together, the separator bonding assembly 410 pre-presses them using rollers for initial venting and further bonding.

[0066] The first thermal bonding component 420 thermally bonds the positive electrode and the separator. Under preset temperature, pressure and time, the surface of the separator slightly melts and firmly bonds with the positive electrode to form a positive electrode with a separator. This makes the positive electrode and the separator a whole. The positive electrode with a separator is stable and will not be misaligned in the subsequent stacking process, which improves the stacking efficiency and accuracy.

[0067] The diaphragm processing apparatus 400 also includes a diaphragm cutting assembly 430 and a diaphragm cutting and inspection assembly 440. The positive electrode sheet with the diaphragm is conveyed to the diaphragm cutting assembly 430, where the uncut, continuous diaphragm is cut to a preset length. The diaphragm cutting and inspection assembly 440 is equipped with a CCD vision sensor. The diaphragm cutting and inspection assembly 440 cuts off the edge material to prepare a preset shape. Defective products are placed in a defective product buffer assembly 1000 adjacent to the diaphragm cutting and inspection assembly 440.

[0068] Furthermore, the machine tool 001 is also equipped with a second patch buffer assembly 1130, which is used to buffer positive electrode sheets with separators. The positive electrode sheets with separators are either positive electrode sheets produced during the manufacturing process or finished positive electrode sheets with separators not produced in this application, and are transported to the stacking device 500 via the fifth transport assembly 850. When the positive electrode sheets with separators in the second patch buffer assembly 1130 are output to the fifth transport assembly 850, they are corrected by the second correction assembly 1120.

[0069] Combination Figure 6 As shown, the stacking device 500 further includes a third pitch adjustment component 1230, which adjusts the spacing between the positive electrode sheets with separators and between the negative electrode sheets transported to the stacking device 500 for stacking to prepare an electrode assembly. At the same time, the third pitch adjustment component 1230 buffers the positive electrode sheets with separators and the negative electrode sheets transported to the stacking device 500.

[0070] Combination Figure 6 As shown, combined with Figure 1 As shown, in some embodiments, the stacking device 500 includes a fifth alignment component 540, which is used to align the material output from the diaphragm-equipped positive and negative electrode processing device 200 before stacking. The fifth alignment component 540 is equipped with an alignment sensor. The electrode assembly requires precise alignment of the diaphragm-equipped positive and negative electrodes, but the positive and negative electrodes are transported to the stacking device 500 independently, and their coordinate systems are not macroscopically unified. The fifth alignment component 540 uses its alignment standard as a reference to perform a final alignment before stacking, ensuring that the positive and negative electrodes are precisely aligned and combined into an electrode assembly.

[0071] Combination Figure 7As shown, in some embodiments, the stacking device 500 includes a stacking stage 510, which provides a position for arranging materials and separators. A defective product buffer assembly 1000 is disposed between the fifth correction assembly 540 and the stacking stage 510. When the fifth correction assembly 540 identifies defective positive and negative electrode sheets with separators during the correction process, the defective products are placed in the defective product buffer assembly 1000.

[0072] The stacking stage 510 can be fixedly installed on the machine base 001.

[0073] The single-sided sheets located on both sides of the electrode group are divided into bottom single-sided sheets and top single-sided sheets. The patches for the bottom single-sided sheets and the top single-sided sheets are respectively placed in the first bottom single-sided sheet patch cache assembly 1111 and the first top single-sided sheet patch cache assembly 1112. The patches for the bottom single-sided sheets and the top single-sided sheets come from single-sided sheets produced during the manufacturing process of single-sided sheets or from finished single-sided sheets not produced in this application. The second correction assembly 1120 is used to correct the single-sided sheets output by the first bottom single-sided sheet patch cache assembly 1111 and the first top single-sided sheet patch cache assembly 1112. The corrected single-sided sheets are used to replace the defective products.

[0074] The single-sided sheet processing device 300 includes two second transport components 820, which are used to transport the top single-sided sheet and the bottom single-sided sheet respectively. The side of the top and bottom single-sided sheets being processed is the side that will be bonded to the separator, preventing the cell from becoming a defective product due to defects. The single-sided sheet processing device 300 also includes a flipping component 320 and a marking component 330. After passing the detection component 160, the flipping component 320 flips the top single-sided sheet over, and the marking component 330 marks the side of the top and bottom single-sided sheets away from the side bonded to the separator for marking. The marking component 330 can process both the top and bottom single-sided sheets simultaneously. After marking is completed, the transfer robot 900 transfers the bottom single-sided sheet with the marking side facing the machine tool 001 and the top single-sided sheet with the marking side facing away from the machine tool 001 to the transport component 310, and transports and buffers them in the single-sided sheet transport component 310.

[0075] The stacking table 510 is equipped with multiple stations for stacking. The transfer robot 900 first places a single-sided sheet as the bottom single-sided sheet at the bottom of the electrode assembly station. Then, the transfer robot 900 places a positive electrode sheet with a separator that has been corrected by the fifth correction component 540 and is in good condition on the bottom single-sided sheet. Next, the negative electrode sheet and the positive electrode sheet with a separator that have been corrected by the fifth correction component 540 and are in good condition are placed alternately at the electrode assembly station. Finally, a single-sided sheet is placed as the top single-sided sheet on the topmost positive electrode sheet with a separator to complete the electrode assembly.

[0076] For the stacking stage 510, which is fixedly installed on the machine tool 001, a transfer robot 900 is needed to move the electrode assembly to the transport component 800, and then the transport component 800 transports it to the hot pressing device 600. The fixed stacking stage 510 is stable and not prone to vibration, providing a stable base platform for high-precision electrode assemblies and making it easy to ensure the alignment of the electrode assemblies.

[0077] Alternatively, the stacking stage 510 is configured to be movably mounted on the machine tool 001, and the stacking stage 510 is configured to move and transport the electrode assembly to the hot pressing device 600. The bottom of the stacking stage 510 is equipped with pulleys, or the stacking stage 510 slides along guide rails, and is locked to the machine tool 001 when stacking is required. When the prepared electrode assembly is transported to the hot pressing device 600, a cover is provided and placed on the electrode assembly to prevent airflow from blowing it away.

[0078] Furthermore, the guide rails corresponding to the stacking table 510 are designed in a circular or linear layout, which can increase the number of stacking tables 510 to improve production capacity and flexibility. Setting up the stacking table 510, which moves on machine 001, speeds up the production cycle and improves production efficiency.

[0079] Specifically, the lamination device 500 is located in the middle of the machine 001, and the positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 are arranged around the lamination device 500. The positive electrode processing device 100, negative electrode processing device 200, and single-sided sheet processing device 300 transport materials from the edge of the machine 001 to the lamination device 500 in the middle, which saves space, shortens the transportation path, and helps to improve production efficiency.

[0080] Combination Figure 6 , Figure 8As shown, in some embodiments, the cutting and stacking integrated machine includes a transfer device 1300. The transfer device 1300 includes a frame 1310, a track, and at least one transfer frame 1320. The frame 1310 is fixed to the machine base 001, the track is disposed on the frame 1310, and the transfer frame 1320 moves on the track. The transfer frame 1320 is provided with a gripping part for picking up electrode groups. The transfer frame 1320 is used to transfer the electrode groups to the hot pressing unit 600. The transfer frame 1320 can achieve linear movement close to or away from the machine base 001. The transfer frame 1320 can replace the transfer robot 900 to transport materials. The transfer frame 1320 can be provided with multiple gripping parts to transport multiple pieces at once, transporting the electrode groups from the stacking table 510 to the sixth transport assembly 860, and then the sixth transport assembly 860 transports the electrode groups to the hot pressing assembly. On one hand, the transfer rack 1320 can be used to transfer positive electrode sheets, negative electrode sheets, and single-sided sheets with diaphragms to the stacking stage 510. On the other hand, the transfer rack 1320 can transfer electrode assemblies to the hot pressing device 600. The frame 1310 and the track are fixed, and the transfer device 1300 is stable and not prone to vibration, making it easy to maintain. The transfer robot 900 can be mounted on the frame 1310.

[0081] Specifically, the stacking table 510 is configured to move along the X direction, and the transfer frame 1320 in the transfer device 1300 moves along the Y direction. After the electrode assembly is completed on the stacking table 510, the stacking table 510 moves along the X direction to below the transfer frame 1320. The transfer frame 1320 takes the electrode assembly from the stacking table 510 and transports it to the hot pressing device 600. Multiple transfer frames 1320 can also be provided to improve capacity and production efficiency.

[0082] Combination Figure 7 As shown, in some embodiments, the stacking device 500 includes a transfer carrier 520 for transferring the electrode assembly. The transfer carrier 520 includes an upper pressure plate 521 and a lower pressure plate 522 disposed opposite to each other, which clamp the electrode assembly from both sides of the prepared electrode assembly. The upper pressure plate 521 and the lower pressure plate 522 are placed parallel to each other on the side of the electrode assembly away from the positive electrode sheet, keeping the upper pressure plate 521, the lower pressure plate 522, and the electrode assembly relatively stationary during transportation. The upper pressure plate 521 and the lower pressure plate 522 of the transfer carrier 520 are connected by a connector, which can be a pin or a magnetic connection, to fix the electrode assembly between the upper pressure plate 521 and the lower pressure plate 522. A transfer robot 900 or a transfer frame 1320 moves the transfer carrier 520 to prevent relative displacement or damage to the electrode assembly during transfer, and the transfer carrier 520 protects the electrode assembly.

[0083] Specifically, the lower platen 522 is placed on the stacking table 510. When stacking, the bottom single-sided sheet is first placed on the lower platen 522, and then the positive electrode sheet with the separator is placed. When the top single-sided sheet is placed down, the upper platen 521 is placed on the top single-sided sheet and connected to the lower platen 522.

[0084] The 520 transfer pole assembly of the transfer carrier eliminates the risk of material misalignment caused by vibration, uneven clamping force, and acceleration during the gripping and transfer process of traditional robotic arms, thereby improving production efficiency and product yield.

[0085] Combination Figure 6 As shown, in some embodiments, the laminating device 500 is provided with a transfer carrier buffer assembly 530, and unused transfer carriers 520 are placed in the transfer carrier buffer assembly 530. A laminating transport assembly and a transfer carrier transport assembly 610 are provided between the laminating device 500 and the hot pressing device 600. After the electrode assembly and the transfer carrier 520 are transported to the hot pressing device 600 via the laminating transport assembly and hot pressing is completed, the transfer carrier 520 is removed and transported by the transfer carrier transport assembly 610 to the transfer carrier buffer assembly 530. The laminating transport assembly is the sixth transport assembly 860.

[0086] Combination Figure 1 , Figure 5 As shown, the hot-pressing device 600 hot-presses the electrode assembly through a second hot-combination component 620. The second hot-combination component 620 comprises two parts: one part hot-presses the upper half of the electrode assembly, and the other part hot-presses the lower half of the electrode assembly, reducing the risk of uneven heating of the electrode assembly and improving product yield. The transfer carrier 520, along with the electrode assembly, is hot-pressed together by the second hot-combination component 620 to prepare the battery cell. Throughout the entire process of transporting the electrode assembly to the hot-pressing device 600, the transfer carrier 520 remains compressed, preventing external disturbances during transport and avoiding vibration and misalignment. After hot pressing, the transfer carrier 520 is placed in the transfer carrier transport component 610. The hot pressing device 600 is equipped with a hot pressing unloading robot. The hot pressing unloading robot removes the upper pressure plate 521 of the transfer carrier 520. The fifth transfer robot 950 removes the battery cell from the lower pressure plate 522 and places the battery cell on the seventh transport component 870. The hot pressing unloading robot places the upper pressure plate 521 on the lower pressure plate 522. The transfer carrier transport component 610 starts transporting the transfer carrier 520 to enable the transfer carrier 520 to be used repeatedly.

[0087] The transfer robot 900 or the transfer frame 1320 removes the upper pressure plate 521 from the transfer carrier transport assembly 610, places the upper pressure plate 521 on the transfer carrier buffer assembly 530, and places the lower pressure plate 522 on the stacking table 510.

[0088] The transfer carrier transport assembly 610 is also equipped with a cleaning transport assembly 611. The machine base 001 is also equipped with a logistics line carrier loading and unloading robot perpendicular to the arrangement direction of the transfer carrier transport assembly 610 and the cleaning transport assembly 611. When the transfer carrier 520 is used multiple times and becomes dirty, the logistics line carrier loading and unloading robot places the transfer carrier 520 into the cleaning transport assembly 611. The cleaning transport assembly 611 is equipped with a cleaning mechanism to clean the transfer carrier 520 to avoid affecting the quality of the electrode assembly.

[0089] In some embodiments, the detection device 700 includes a cell positioning component 710, a short-circuit testing component 720, and a thickness measuring component 730. The cell positioning component is used to position the cell, the short-circuit testing component 720 is used to connect the cell to the test circuit and perform short-circuit detection, and the thickness measuring component 730 is used to measure the thickness of the cell.

[0090] Combination Figure 1 , Figure 5 As shown, the transfer robot 900 removes the battery cell from the seventh transport assembly 870 and places it in the battery cell positioning assembly 710. The battery cell positioning assembly 710 is equipped with a vision sensor for receiving and accurately positioning the battery cell from the hot pressing device 600. The detection device 700 also includes an adhesive application assembly 740, which includes a side adhesive application section 741, a surface adhesive application section 742, and a QR code application section 743. After the battery cell positioning assembly 710 positions the battery cell, the side adhesive application section 741 applies side adhesive to the sides of the battery cell to stabilize the battery cell structure. The surface adhesive application section 742 applies adhesive to the top surface of the battery cell, and the QR code application section 743 applies a QR code to the top surface of the battery cell. The QR code contains relevant information about the battery cell.

[0091] After the QR code is affixed, the battery cell is vacuum-transported by the transport component 800. The short-circuit test component 720 is used to connect the battery cell to the test circuit and perform short-circuit detection. The test voltage or current is applied to the battery cell's tabs through probes or contact plates to detect whether a micro short circuit or insulation failure has occurred inside. Defective products are placed in the defective product buffer component 1000.

[0092] The thickness measurement component 730 measures the thickness of the battery cell using a contact displacement sensor to determine whether the thickness of the battery cell is within the tolerance range. Cells exceeding the tolerance range are considered defective and are placed in the defective product buffer component 1000.

[0093] Combination Figure 1 , Figure 5 As shown, the testing device 700 also includes a cell testing component 750, which performs visual inspection on the cells to check for defects such as bumps, scratches, and poor tape adhesion. Defective products are placed in the defective product buffer component 1000.

[0094] Battery cells that pass inspection are transported to a cell transfer mechanism. The cell transfer mechanism includes a cell transfer carrier 760 and a cell transfer carrier buffer assembly 761. The buffer assembly 761, placed within the cell transfer carrier 760, protects the moving cells and also buffers them to balance production cycles. After the cells are transferred from the cell transfer carrier 760 to the unloading conveyor assembly 880 and unloaded, the cell transfer carrier 760 is placed in the cell transfer carrier buffer assembly 761 for reuse.

[0095] The design of the 700 testing device allows the battery cell to undergo visual positioning, short-circuit testing, and thickness measurement sequentially on the same device after hot pressing, without needing to be removed from the device. This effectively shortens the testing cycle and ensures that the fragile hot-pressed battery cell does not need to be handled a second time or undergo long-distance transportation. From hot pressing to the completion of all tests, the battery cell is in a protected and stable environment.

[0096] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A cutting and stacking integrated machine, comprising a machine base, characterized in that, The machine platform is equipped with: A positive electrode processing device for processing positive electrode sheets and outputting the positive electrode sheets; A negative electrode processing device is used to process negative electrode sheets and output the negative electrode sheets; A single-sided sheet processing device for processing single-sided sheets and outputting the single-sided sheets; A diaphragm processing device for processing the diaphragm or outputting the diaphragm; A stacking device is connected to the output terminals of the positive electrode processing device, the negative electrode processing device, the single-sided sheet processing device, and the separator processing device. The stacking device is used to combine the positive electrode, the negative electrode, the single-sided sheet, and the separator to prepare an electrode assembly. A hot pressing device is connected to the output end of the stacking device, and the hot pressing device is used to hot press the electrode group to prepare the battery cell; A detection device is connected to the output end of the hot pressing device, and the detection device is used to perform short circuit detection on the battery cell; The positive electrode processing device, the negative electrode processing device, and the single-sided sheet processing device are all equipped with a buffer component.

2. The cutting and stacking integrated machine according to claim 1, characterized in that: The detection device includes: A cell positioning assembly is used to position the battery cell; A short-circuit test assembly is used to connect the battery cell to a test circuit and perform short-circuit detection. Thickness measuring component, used to measure the thickness of the battery cell.

3. The cutting and stacking integrated machine according to claim 1, characterized in that: The stacking device includes a stacking stage, wherein: The stacking stage is fixedly mounted on the machine base; or... The stacking stage is configured to be movably mounted on the machine base, and the stacking stage is capable of moving and transporting the electrode assembly to the hot pressing device.

4. The cutting and stacking integrated machine according to claim 3, characterized in that: The integrated cutting and stacking machine includes a transfer device, which includes a frame, a track, and a transfer rack. The frame is fixed to the machine base; The track is set on the frame, and the transfer frame is capable of moving on the track; The transfer frame is provided with a gripping part, which is used to pick up the electrode assembly, and the transfer frame is used to transfer the electrode assembly to the hot pressing device.

5. The cutting and stacking integrated machine according to claim 3 or 4, characterized in that: The stacking device includes a transfer carrier for transferring the electrode assembly. The transfer carrier includes an upper pressure plate and a lower pressure plate disposed opposite to each other, and the upper pressure plate and the lower pressure plate are used to clamp the electrode assembly from both sides.

6. The cutting and stacking integrated machine according to claim 5, characterized in that: The stacking device is provided with a transfer carrier buffer assembly, and unused transfer carriers are placed in the transfer carrier buffer assembly. A stacking transport assembly and a transfer carrier transport assembly are provided between the stacking device and the hot pressing device.

7. The cutting and stacking integrated machine according to claim 1, characterized in that: The positive electrode processing device, the negative electrode processing device, and the single-sided sheet processing device all include an unwinding assembly, a cutting assembly, a first correction assembly, a die-cutting assembly, a surface treatment assembly, and a detection assembly arranged sequentially along the material flow direction; The input end of the surface treatment component is connected to the output end of the die-cutting component, and the surface treatment component is used to remove surface impurities and static electricity from the material. The input end of the detection component is connected to the output end of the surface treatment component, and the detection component is used to observe and record whether the surface of the material is flat.

8. The cutting and stacking integrated machine according to claim 7, characterized in that: The positive electrode processing device, the negative electrode processing device, and the single-sided electrode processing device further include a defective product buffer assembly and a replacement mechanism; The patching mechanism includes a first patching buffer component and a second correction component. The first patching buffer component is used to buffer and replenish the material, and the second correction component is used to correct the material output by the first patching buffer component.

9. The cutting and stacking integrated machine according to claim 7, characterized in that: The positive electrode processing device includes a third correction component and a fourth correction component, and the diaphragm processing device includes a diaphragm bonding component and a first thermal composite component. The output of the detection component is connected to the input of the third correction component; The output of the third correction component is connected to the input of the fourth correction component; The output end of the fourth correction component is connected to the input end of the diaphragm processing device. The diaphragm bonding component is used to cover the two sides of the positive electrode sheet with the diaphragm. The first thermal composite component is used to hot press the diaphragm and the positive electrode sheet to prepare a positive electrode sheet with a diaphragm.

10. The cutting and stacking integrated machine according to claim 9, characterized in that: The stacking device includes a fifth correction component, which is used to correct the deviation of the positive electrode with diaphragm, the negative electrode output from the negative electrode processing device, and the single-sided sheet output from the single-sided sheet processing device.

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