Manufacturing apparatus and method of solid-state battery negative electrode sheet, and solid-state battery negative electrode sheet

Abstract

This application provides a manufacturing apparatus, method, and solid-state battery negative electrode sheet, relating to the field of battery manufacturing technology. The apparatus includes: a support assembly; a carrier mechanism disposed on the support assembly and used to fix the negative electrode sheet; and a printing unit disposed on the support assembly and located above the carrier mechanism, used to print and cure an insulating frame on the surface of the negative electrode sheet. By setting up a support assembly and providing a carrier mechanism for fixing the negative electrode sheet and a printing unit located above the carrier mechanism for printing and curing the insulating frame on the surface of the negative electrode sheet, the insulating frame can be directly formed while the negative electrode sheet is stably supported. This improves the forming accuracy, consistency, and interface stability of the insulating frame on the surface of the negative electrode sheet, thereby improving the edge insulation protection effect of the solid-state battery stacking area and enhancing the adaptability and mass production yield of multi-specification electrode sheets.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a manufacturing apparatus, method and solid-state battery negative electrode sheet. Background Technology

[0002] In the field of battery manufacturing technology, solid-state battery cells are stacked structures with negative electrodes surrounding positive electrodes. Since the area of ​​the negative electrode sheet is larger than that of the positive electrode sheet, the unsupported edge of the negative electrode sheet that extends beyond the positive electrode sheet is prone to wavy warping or lateral displacement under assembly force, which causes it to collapse inward and come into direct contact with the positive electrode sheet, resulting in a short circuit inside the solid-state battery cell.

[0003] In related technologies, an insulating frame is attached to the negative electrode sheet by adhesive, the insulating frame covers the area of ​​the negative electrode sheet that extends beyond the positive electrode sheet, and the positive electrode sheet is set within the area enclosed by the insulating frame.

[0004] However, under high temperature conditions, the adhesive layer is prone to failure, which can cause the insulating frame to fall off. Summary of the Invention

[0005] This application provides a manufacturing apparatus, method, and solid-state battery negative electrode sheet to solve the problem that the adhesive layer is prone to failure and the insulating frame falls off under high temperature conditions.

[0006] In a first aspect, embodiments of this application provide a manufacturing apparatus for a solid-state battery negative electrode sheet, comprising:

[0007] Support components;

[0008] The support mechanism is mounted on the support assembly and is used to fix the negative electrode sheet.

[0009] The printing unit is mounted on the support assembly and located above the carrier mechanism. The printing unit is used to print and cure the insulating frame on the surface of the negative electrode sheet.

[0010] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet. The printing unit includes a positioning element, a printing component, and a curing element. The positioning element is connected to the printing component. Both the positioning element and the printing component are disposed on a support component, and the curing element is disposed on the printing component.

[0011] The printing component is configured to print an insulating frame at a preset printing position on the surface of the negative electrode when the positioning element corresponds to a reference mark on the surface of the negative electrode.

[0012] The curing component is used to cure the insulating frame.

[0013] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet, wherein the printing component includes a plurality of inkjet channels and printheads disposed on the inkjet channels;

[0014] Multiple inkjet channels are connected to positioning components, and curing components are fitted onto the printhead.

[0015] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet, wherein the supporting mechanism includes a first stage, a second stage, and a flipping component;

[0016] Both the first and second platforms are connected to the flipping assembly, and the first and second platforms are located on opposite sides of the flipping assembly.

[0017] The second stage is mounted on the support assembly, and the negative electrode sheet is mounted on either the first stage or the second stage.

[0018] The flipping assembly is configured to drive the first stage to rotate toward and engage with the second stage when the printing unit completes the printing of the insulating frame on the negative electrode sheet on the first stage, so as to transfer the negative electrode sheet from the first stage to the second stage and make the insulating frame face the second stage.

[0019] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet. The flipping assembly includes a rotating shaft, a movable seat, a fixed seat, and a connector. A first platform is disposed on the movable seat, a second platform is disposed on the fixed seat, the rotating shaft is disposed on one side of the fixed seat, and the connector is inserted into the rotating shaft. Both ends of the connector are connected to the movable seat. The rotating shaft is used to drive the movable seat to rotate toward the fixed seat.

[0020] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet, wherein at least three first printing slots are provided on a first platform, and the at least three first printing slots are evenly arranged along the length direction of the first platform.

[0021] The second stage is provided with at least three second printing slots, and the dimensions of the first and second printing slots are the same as the dimensions of the negative electrode sheet.

[0022] When the first stage and the second stage are engaged, the first printing slot and the second printing slot correspond one-to-one;

[0023] The second printing slot is also provided with a flexible sealing ring, which surrounds the second printing slot; the flexible sealing ring is provided with an anti-cavity groove.

[0024] The negative electrode is disposed on one of the first printing slot and the second printing slot;

[0025] It also includes an adsorption element. Both the first and second printing slots are equipped with adsorption elements, which are used to adsorb and fix the negative electrode sheet.

[0026] In one possible embodiment, this application provides a manufacturing apparatus for a solid-state battery negative electrode sheet, wherein the support assembly includes a first support member and a second support member disposed on the first support member, and at least one of the first support member and the second support member is movable relative to the other.

[0027] The supporting mechanism is mounted on the first support member, and the printing unit is mounted on the second support member;

[0028] It also includes a material handling component, which includes a loading component and a unloading component. The loading component is located at the end of the first support member near the first platform, and the unloading component is located at the end of the first support member near the second platform.

[0029] Secondly, embodiments of this application provide a method for manufacturing a solid-state battery negative electrode sheet, employing equipment including the above-mentioned apparatus for manufacturing a solid-state battery negative electrode sheet insulating frame, and the preparation method includes:

[0030] The negative electrode sheet is fixed on the support mechanism of the solid-state battery negative electrode sheet manufacturing equipment;

[0031] A support component that drives the manufacturing equipment for solid-state battery anode sheets, so that the printing unit of the manufacturing equipment for solid-state battery anode sheets is aligned with a preset printing position on the surface of the anode sheet.

[0032] The insulating frame is printed and cured at a preset printing position by the printing unit.

[0033] In one possible embodiment, the insulating frame is printed and cured at a preset printing position by a printing unit, including:

[0034] The first insulating frame is printed and cured at a predetermined printing position on one surface of the negative electrode using a printing unit;

[0035] When the carrier mechanism drives the first insulating frame to rotate toward the carrier mechanism, the second insulating frame is printed and cured by the printing unit at a preset printing position on the other surface of the negative electrode sheet.

[0036] Thirdly, embodiments of this application provide a solid-state battery negative electrode sheet, which is manufactured using a method including the solid-state battery negative electrode sheet provided above.

[0037] This application provides a manufacturing apparatus, method, and solid-state battery negative electrode sheet, comprising: a support assembly; a carrier mechanism disposed on the support assembly for fixing the negative electrode sheet; and a printing unit disposed on the support assembly and located above the carrier mechanism for printing and curing an insulating frame on the surface of the negative electrode sheet. By setting up a support assembly and providing a carrier mechanism for fixing the negative electrode sheet and a printing unit located above the carrier mechanism for printing and curing the insulating frame on the surface of the negative electrode sheet, the insulating frame can be directly formed while the negative electrode sheet is stably supported. This improves the forming accuracy, consistency, and interface stability of the insulating frame on the surface of the negative electrode sheet, thereby improving the edge insulation protection effect of the solid-state battery stacking area and enhancing the adaptability and mass production yield of multi-specification electrode sheets. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0039] Figure 1 A schematic diagram of a manufacturing apparatus for a solid-state battery negative electrode sheet provided in an embodiment of this application;

[0040] Figure 2 for Figure 1 Schematic diagram of the load-bearing mechanism;

[0041] Figure 3 for Figure 2 A schematic diagram of the structure of the second printing slot in the middle;

[0042] Figure 4 This is a schematic diagram of the structure of a solid-state battery negative electrode sheet provided in an embodiment of this application;

[0043] Figure 5 for Figure 4 A cross-sectional view from another direction;

[0044] Figure 6 A schematic flowchart illustrating a method for manufacturing a solid-state battery negative electrode sheet according to an embodiment of this application;

[0045] Figure 7 for Figure 6 A flowchart of S103.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100-Support assembly; 110-First support member; 120-Second support member; 200-Bearing mechanism; 210-First platform; 211-First printing slot; 220-Second platform; 221-Second printing slot; 222-Flexible sealing ring; 2221-Void clearance slot; 230-Flipping assembly; 231-Rotating shaft; 232-Modible seat; 233-Fixed seat; 234-Connector; 240-Adsorption component; 300-Printing unit; 310-Positioning component; 320-Printing assembly; 321-Inkjet pipe; 322-Printer head; 330-Curing component; 400-Material handling assembly; 410-Feeding component; 420-Unloading component; 10-Negative electrode sheet; 20-Insulating frame; 21-First insulating frame; 22-Second insulating frame.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0052] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0053] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0054] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0055] Unless otherwise stated, the term "multiple" means two or more.

[0056] In the field of battery manufacturing technology, solid-state battery cells are stacked structures with negative electrodes surrounding positive electrodes. Since the area of ​​the negative electrode sheet is larger than that of the positive electrode sheet, the unsupported edge of the negative electrode sheet that extends beyond the positive electrode sheet is prone to wavy warping or lateral displacement under assembly force, which causes it to collapse inward and come into direct contact with the positive electrode sheet, resulting in a short circuit inside the solid-state battery cell.

[0057] In related technologies, an insulating frame is glued onto the negative electrode, covering the area of ​​the negative electrode that extends beyond the positive electrode, with the positive electrode positioned within the area enclosed by the insulating frame. However, under high-temperature conditions, the adhesive layer is prone to failure, causing the insulating frame to detach.

[0058] This application provides a manufacturing apparatus, method, and solid-state battery negative electrode sheet, comprising: a support assembly; a carrier mechanism disposed on the support assembly for fixing the negative electrode sheet; and a printing unit disposed on the support assembly and located above the carrier mechanism for printing and curing an insulating frame on the surface of the negative electrode sheet. By setting up a support assembly and providing a carrier mechanism for fixing the negative electrode sheet and a printing unit located above the carrier mechanism for printing and curing the insulating frame on the surface of the negative electrode sheet, the insulating frame can be directly formed while the negative electrode sheet is stably supported. This improves the forming accuracy, consistency, and interface stability of the insulating frame on the surface of the negative electrode sheet, thereby improving the edge insulation protection effect of the solid-state battery stacking area and enhancing the adaptability and mass production yield of multi-specification electrode sheets.

[0059] The embodiments of this application are described below with reference to the accompanying drawings.

[0060] Reference Figure 1 As shown, in some embodiments, this embodiment includes: a support assembly 100; a carrier mechanism 200, which is disposed on the support assembly 100 and is used to fix the negative electrode sheet 10; and a printing unit 300, which is disposed on the support assembly 100 and is located above the carrier mechanism 200, and is used to print and cure the insulating frame 20 on the surface of the negative electrode sheet 10.

[0061] The support assembly 100 is the basic frame used to support and install the carrier mechanism 200 and the printing unit 300. The function of the support assembly 100 is to provide a stable installation reference, spatial positioning relationship, and motion support conditions for the forming process of the insulating frame 20 on the surface of the negative electrode sheet 10, so as to maintain a preset relative position relationship between the carrier mechanism 200 and the printing unit 300. The support assembly 100 is physically located at the bottom or middle of the frame of the whole machine, and is connected to the mounting components of the carrier mechanism 200 and the printing unit 300 by means of bolt connection, welding connection, or guide rail sliding connection, so as to form a rigid support and an adjustable mounting interface.

[0062] In one possible embodiment, the support component 100 may adopt a profile frame structure, a plate welded structure, or a box gantry structure. The material of the support component 100 may be aluminum alloy, stainless steel, or carbon steel with anti-corrosion treatment. In terms of shape, it may be a rectangular frame, a gantry frame, or a split mounting bracket. The length and width of the support component 100 should generally meet the setting requirements of the negative electrode sheet 10 feeding area, the bearing mechanism 200 arrangement area, and the reciprocating stroke of the printing unit 300, so as to ensure that the print head is not interfered with by the structure when forming a continuous trajectory on the surface of the negative electrode sheet 10.

[0063] The support mechanism 200 is a support and positioning mechanism used to fix, position, and support the negative electrode sheet 10. The function of the support mechanism 200 is to limit the planar displacement, warping, or orientation deflection of the negative electrode sheet 10 during the printing process, so that the surface of the negative electrode sheet 10 is in a printable stable state, and to provide a reference for the boundary position of the insulating frame 20. The support mechanism 200 is mounted on the support assembly 100, and its upper surface forms a working plane for placing the negative electrode sheet 10. The support mechanism 200 is typically connected to the support assembly 100 via a positioning structure, clamping element, or sliding tray, and corresponds to the printing path of the printing unit 300, so that the surface of the negative electrode sheet 10 maintains a set distance from the printing unit 300.

[0064] In one possible embodiment, the support mechanism 200 may be a platform structure with a positioning area or a clamping tray structure. The material may be a metal platform, a composite resin platform, or a surface-hardened metal material. The external dimensions of the support mechanism 200 are usually matched with the size of the negative electrode sheet 10. The width and length may be slightly larger than the external boundary of the negative electrode sheet 10 to form an edge allowance and facilitate the printing unit 300 to complete the closing and forming of the insulating frame 20 in the edge area.

[0065] The printing unit 300 is an actuator for performing material deposition and curing on the surface of the negative electrode 10. The function of the printing unit 300 is to deposit insulating material on the edge area or designated area of ​​the negative electrode 10 according to a preset printing path and then cure the insulating material to form an insulating frame 20 with a predetermined contour. The printing unit 300 is mounted on the support assembly 100 and located above the carrier mechanism 200, printing the negative electrode 10 on the carrier mechanism 200 in a downward orientation. The printing unit 300 and the carrier mechanism 200 form an upper and lower mating relationship. The discharge end of the printing unit 300 faces the surface of the negative electrode 10 and moves relative to the negative electrode 10 to track the path of the insulating frame 20.

[0066] In one possible embodiment, the printing unit 300 may be a printing actuator capable of depositing and curing insulating material on the surface of the negative electrode 10. The material of the printing unit 300 may include a metal housing, an engineering plastic bracket, and related structural components. In terms of form, the printing unit 300 may be a beam-type moving printing mechanism, a cantilever-type printing mechanism, or a gantry-type printing module. The printing area, printing accuracy, and curing range of the printing unit 300 are matched with the width and contour accuracy of the edge insulating frame 20 of the negative electrode 10 to meet the positioning requirements. Specifically, the printing area and curing range of the printing unit 300 may be such that the sum of the area of ​​the insulating frame 20 and the area of ​​the positive electrode is equal to the area of ​​the negative electrode 10.

[0067] In one possible embodiment, the insulating material deposited in the edge region or designated region of the negative electrode 10 may be selected as UV composite ink. The UV composite ink may contain, by weight percentage: 35%~55% polymeric prepolymer, 15%~25% photosensitive monomer, 3%~8% photoinitiator, 15%~25% inorganic pigment, and 1%~5% additives. The polymeric prepolymer may be at least one of UV acrylate and UV epoxy resin. The inorganic pigment may be at least one of titanium dioxide and carbon black. The additives may include at least one of leveling agent, defoamer, and antioxidant.

[0068] The solid-state battery negative electrode manufacturing equipment provided in this embodiment establishes the overall installation reference through the support component 100, fixes and positions the negative electrode 10 through the bearing mechanism 200, and positions the printing unit 300 above the bearing mechanism 200 to form a downward printing station, so that the negative electrode 10 can accept the printing and curing of insulating materials while maintaining a stable posture.

[0069] By placing the negative electrode 10 on the working plane of the support mechanism 200 and using a fixing or positioning mechanism to keep the edge of the negative electrode 10 in a preset position relative to the printing path, the printing unit 300 deposits insulating material on the edge area of ​​the negative electrode 10 surface according to a predetermined trajectory. The deposited insulating material forms a closed insulating frame 20 contour along the outer periphery of the negative electrode 10 and completes the shaping. Because there is a clear vertical spatial fit between the printing unit 300 and the support mechanism 200, and the support mechanism 200 provides a stable working plane reference for the negative electrode 10, the printing unit 300 can perform continuous and repeatable path control according to the preset printing path during movement, so that the boundary position, contour shape and forming state of the insulating frame 20 are consistent with the surface of the negative electrode 10.

[0070] Compared to methods relying on die-cutting and attachment, the insulating frame 20 can be directly formed and integrated onto the fixing station of the negative electrode sheet 10. This reduces the impact of intermediate transfer steps on the positional accuracy of the insulating frame 20 and allows for adaptation processing of negative electrode sheets 10 of different specifications after changing tooling or adjusting the printing trajectory. Therefore, the forming process of the insulating frame 20 is continuous, and it helps maintain the matching relationship between the edge insulation structure and the subsequent stacking alignment, thus providing a stable process foundation for the mass production of solid-state battery negative electrode sheets 10. It should be understood that the above example is for demonstration purposes only and is not limiting.

[0071] Reference Figure 1As shown, in some embodiments, this embodiment includes: a printing unit 300 including a positioning member 310, a printing component 320, and a curing member 330. The positioning member 310 is connected to the printing component 320, and both the positioning member 310 and the printing component 320 are disposed on the support component 100. The curing member 330 is disposed on the printing component 320. The printing component 320 is configured to print an insulating frame 20 at a preset printing position on the surface of the negative electrode 10 when the positioning member 310 corresponds to a reference mark on the surface of the negative electrode 10. The curing member 330 is used to cure the insulating frame 20.

[0072] In one possible embodiment, the positioning element 310 is a positioning mechanism for identifying reference marks on the surface of the negative electrode 10 and establishing a position reference. The function of the positioning element 310 is to determine the spatial orientation, planar coordinates, and orientation deviation of the negative electrode 10 before printing, thereby providing reference coordinates for the subsequent printing trajectory of the insulating frame 20. The positioning element 310 can be disposed on the support assembly 100 and form a linkage relationship with the printing assembly 320. The positioning element 310 and the printing assembly 320 can maintain a predetermined relative position during installation so that the reference information obtained by the positioning element 310 can be used for trajectory correction of the printing assembly 320.

[0073] The positioning element 310 can detect the edges, corners, preset identification points, or printed marks of the negative electrode 10 and transmit the identification results to the control unit of the printing assembly 320 so that the printing path matches the actual position of the negative electrode 10. The positioning element 310 can be any of the following: a visual positioning module, a charge-coupled device (CCD) based camera module, a photoelectric sensor group, or a mechanical reference probe. The structure of the positioning element 310 can include a metal bracket, a glass lens, a ceramic protective shell, or a polymer encapsulation shell to meet the needs of different precision and usage environments. The visual positioning module is suitable for non-contact identification, the charge-coupled device (CCD) based camera module is suitable for high-resolution imaging of reference marks, the photoelectric sensor group is suitable for rapid position detection, and the mechanical reference probe is suitable for contact confirmation of boundaries or positioning holes.

[0074] The positioning component 310 can be installed above, at the front end, or to the side of the printing assembly 320 to avoid the printing trajectory and form a stable recognition field. The recognition area of ​​the positioning component 310 can be set as a covering recognition area or a partial recognition area according to the size and arrangement of the reference mark of the negative electrode 10. The positioning component 310 can be a small module, an integrated module, or a split module in terms of size. The width and height of the recognition window of the positioning component 310 can be set according to the positioning requirements of the edge area of ​​the negative electrode 10 to balance recognition accuracy and assembly convenience. It should be understood that the above example is only for demonstration and is not limiting.

[0075] The printing assembly 320 is a printing mechanism used to form insulating material onto a preset position of the negative electrode sheet 10 after positioning and correction. The function of the printing assembly 320 is to form an insulating frame 20 with a predetermined contour and line width on the surface of the negative electrode sheet 10, and to distribute the insulating frame 20 around the edge area or local area of ​​the negative electrode sheet 10 that needs insulation protection. The printing assembly 320 is connected to the positioning member 310, and both the printing assembly 320 and the positioning member 310 are mounted on the support assembly 100. Therefore, after the positioning member 310 completes the reference correspondence, the printing assembly 320 performs jetting, dispensing, coating or other printing actions according to the corrected coordinates.

[0076] The printing component 320 works by depositing insulating material onto the surface of the negative electrode 10 in continuous lines or discrete dots under the drive of the control system, forming a closed or open insulating frame 20 structure. The working width of the printing component 320 is adapted to the annular path of the insulating frame 20. For example, the line width of the insulating frame 20 can be from hundreds of micrometers to several millimeters, and the printing accuracy must meet the trajectory repeatability requirements within this range to ensure the continuity and consistency of the insulation boundary.

[0077] The curing component 330 is an energy output component used to rapidly set the printed insulating material and enhance its adhesion stability. Its function is to provide ultraviolet light, visible light, heat, or other curable energy after the insulating frame 20 is printed, causing the insulating material to crosslink, polymerize, or dry rapidly, thereby obtaining a cured layer with mechanical strength and electrical insulation properties. The curing component 330 is mounted on the printing assembly 320 and is typically arranged compactly with it to shorten the time interval between spraying and curing of the insulating material, thus reducing the risk of contour deformation due to flow, diffusion, or contamination of uncured material.

[0078] In one possible embodiment, the curing element 330 may be an ultraviolet light-emitting diode (UV-LED), a laser curing module, or a hot air-assisted curing module; the ultraviolet light-emitting diode (UV-LED) is suitable for reducing heat generation and extending service life, the laser curing module is suitable for local high-precision curing, and the hot air-assisted curing module is suitable for supplementing drying of materials with both volatile and reactive curing properties.

[0079] The curing component 330 can be made of materials such as an aluminum alloy heat sink shell, a quartz light-transmitting cover, and a high-temperature resistant thermally conductive base. The curing component 330 can be designed in a wraparound, strip, or dot matrix shape to adapt to different printing trajectories and curing width requirements. The installation position of the curing component 330 is preferably facing the printing area, and the curing energy output range is matched with the line width, ink layer thickness, and printing speed of the insulating frame 20. For example, the curing irradiation width can cover the forming area of ​​the insulating frame 20 and be slightly larger than the printing line width to ensure that the edge area is cured synchronously without producing uncured dead corners.

[0080] By fixing the negative electrode 10 onto the support mechanism 200, the positioning component 310 identifies the reference marks on the surface of the negative electrode 10 and establishes a coordinate correspondence to correct the printing trajectory of the printing component 320 so that the spraying position of the printing component 320 accurately corresponds to the preset printing position on the surface of the negative electrode 10. The printing component 320 continuously or segmentally prints insulating material on the surface of the negative electrode 10 along a predetermined path to form an insulating frame 20 surrounding the edge area of ​​the negative electrode 10. The adjacent curing component 330 immediately or after printing applies energy irradiation or heat treatment to the insulating frame 20, thereby rapidly curing and shaping the printed material and avoiding boundary expansion or uneven thickness caused by material flow.

[0081] Since the positioning component 310 completes the benchmark correction first, the printing component 320 then performs point printing, and the curing component 330 completes curing after printing, the contour position of the insulating frame 20 can be kept consistent with the benchmark position of the negative electrode sheet 10. This improves the forming accuracy and repeatability of the insulating frame 20 and reduces dimensional deviations caused by attachment deviations, uneven coating, or subsequent sagging. Simultaneously, printing and curing are completed on the same support component 100, which helps shorten process connection time, improves the adaptability to different specifications of negative electrode sheets 10, and achieves stable and efficient forming of the insulating frame 20 during the manufacturing process of the solid-state battery negative electrode sheet 10. It should be understood that the above example is merely illustrative and not limiting.

[0082] Reference Figure 1 As shown, in some embodiments, this embodiment includes: the printing component 320 includes a plurality of inkjet channels 321 and a printhead 322 disposed on the inkjet channels 321; the plurality of inkjet channels 321 are all connected to the positioning member 310, and the curing member 330 is sleeved on the printhead 322.

[0083] In one possible embodiment, the printing assembly 320 includes a plurality of inkjet channels 321 and printheads 322 disposed on the inkjet channels 321. The inkjet channels 321 are fluid channels for conveying printing material to the insulating frame 20. The function of the inkjet channels 321 is to stably deliver the insulating material to the printheads 322 and maintain the continuity of the jetting. The printheads 322 are jetting execution components disposed at the end of the inkjet channels 321. The printheads 322 are used to atomize, titrate, or quantitatively jet the material onto the surface of the negative electrode sheet 10 under pressure drive, electrical signal drive, or both combined.

[0084] Multiple inkjet channels 321 are connected to the positioning element 310. The feeding path and jetting path of each inkjet channel 321 are controlled by the coordinate information of the positioning element 310, so that the printed insulating material can be accurately output according to the preset boundary and correspond to the reference mark on the surface of the negative electrode 10. The curing element 330 is sleeved on the printhead 322. The curing element 330 and the printhead 322 form a near-end fit relationship, which can perform immediate or near-immediate curing of the sprayed insulating material after the printhead 322 completes the deposition of the insulating material, thereby shortening the flow time of the insulating material in the uncured state.

[0085] The inkjet tube 321 can be understood structurally as a slender transport channel connecting the material storage end and the printhead 322 end. After the inkjet tube 321 is connected to the positioning component 310, the positioning component 310 can provide a position reference, printing cycle or jet trigger signal to ensure that the insulating material output by the inkjet tube 321 is synchronously matched with the spatial position of the printhead 322.

[0086] In one exemplary embodiment, the inkjet tube 321 can be formed from a metal capillary, a polytetrafluoroethylene (PTFE) flexible tube, a composite polymer microchannel, or a glass capillary. The metal capillary is suitable for withstanding high delivery pressure, the PTFE flexible tube is suitable for improving corrosion resistance and flexible arrangement, the composite polymer microchannel is suitable for integrated flow channel design, and the glass capillary is suitable for achieving stable micro-volume delivery. Multiple inkjet tubes 321 can be arranged in parallel or in groups at positions corresponding to different printheads 322 to adapt to single-component, two-component, or multi-component insulating material systems. The diameter of the inkjet tube 321 can be set from the micrometer to the millimeter level according to the material viscosity and jet flow rate, and is usually coordinated with the line width, thickness, and printing volume per unit time of the preset insulating frame 20, thereby avoiding insufficient material supply, ink interruption, or excessive accumulation.

[0087] As the end-effector of the inkjet conduit 321, the printhead 322 functions to convert the delivered insulating material into discrete droplets, continuous streams, or scanning lines suitable for forming, and accurately place them at the preset printing positions on the surface of the negative electrode 10.

[0088] In one possible embodiment, the nozzle 322 may be a piezoelectric nozzle 322, a thermal foaming nozzle 322, a micro-valve nozzle 322, or an electrically controlled micro-droplet nozzle 322; the piezoelectric nozzle 322 is suitable for scenarios with high requirements for droplet volume control, the thermal foaming nozzle 322 is suitable for rapid spraying of low-viscosity materials, the micro-valve nozzle 322 is suitable for high-viscosity or filler-containing materials, and the electrically controlled micro-droplet nozzle 322 is suitable for working conditions requiring high response speed and positional accuracy.

[0089] The printhead 322 can be composed of components such as a stainless steel nozzle, a ceramic nozzle plate, a silicon-based microporous sheet, and a polymer sealing ring. The nozzles of the printhead 322 can be single-hole, multi-hole array, or linear. The nozzle diameter, spray angle, and droplet diameter should match the boundary width and edge precision of the formed insulating frame 20 to ensure the continuity of the insulating frame 20's outline and dimensional consistency. The printhead 322 and the inkjet tube 321 are typically connected by threaded connections, snap-fit ​​connections, interference fits, or sealing joints to ensure sealing and stability during transport.

[0090] Multiple inkjet channels 321 are connected to the positioning element 310, enabling each inkjet channel 321 to complete spatial calibration under the unified control of the positioning element 310. This allows the printhead 322 to perform point-to-point, line-to-line, or path-scanning inkjet printing around the edge area of ​​the negative electrode 10 during operation. The curing element 330 is fitted onto the printhead 322, forming a near-field integrated arrangement with the printhead 322. The curing element 330 can immediately apply heat, ultraviolet energy, infrared energy, or other curing energy to the deposited layer after the printhead 322 completes the deposition of insulating material, thereby promoting cross-linking, solvent evaporation, or phase change curing of the insulating material.

[0091] The curing component 330 can be a ring-shaped sleeve, a semi-enclosed cover, or a split curing module. During installation, the curing component 330 is usually fitted onto the outer periphery of the nozzle 322 by means of thread fixing, sliding sleeve limiting, snap-fit ​​positioning, or bracket connection to avoid interference between the curing component 330 and the spray nozzle, while ensuring that the curing energy is concentrated on the area of ​​the newly printed insulating frame 20.

[0092] The positioning element 310 identifies the reference marks on the surface of the negative electrode 10 or matches them with the position information of the external control system, thereby determining the jet coordinates and path trajectories corresponding to multiple inkjet channels 321. Under the drive of a pressure source or metering pump, each inkjet channel 321 continuously delivers insulating material to the printhead 322. The printhead 322 performs dot, line, or scanning jetting at preset printing positions according to control signals, so that the material forms a continuous or segmented insulating frame 20 along the edge of the negative electrode 10. Simultaneously, the curing element 330 fitted onto the printhead 322 applies heat, light, or other curing energy immediately after the insulating material is deposited, allowing the insulating material to complete its initial shaping and stably adhere to the surface of the negative electrode 10 in a very short time, thereby reducing the risks of insulating material sagging, edge diffusion, and uneven thickness.

[0093] Since multiple inkjet channels 321 are connected to the positioning element 310, the spraying position, feeding cycle, and curing cycle of the printhead 322 can remain synchronized. Therefore, the resulting insulating frame 20 has high boundary clarity, dimensional consistency, and positional repeatability, which is beneficial for the alignment stability and electrical isolation reliability during subsequent stacking assembly. It should be understood that the above example is only illustrative and not limiting. Without departing from the technical concept of this application, the specific form, connection method, and material selection of the inkjet channels 321, printhead 322, and curing element 330 can be adjusted according to actual process conditions.

[0094] Reference Figures 1 to 2 As shown, in some embodiments, this embodiment includes: a support mechanism 200 including a first platform 210, a second platform 220, and a flipping assembly 230; both the first platform 210 and the second platform 220 are connected to the flipping assembly 230, and the first platform 210 and the second platform 220 are respectively located on both sides of the flipping assembly 230; the second platform 220 is disposed on the support assembly 100, and the negative electrode 10 is disposed on one of the first platform 210 and the second platform 220; the flipping assembly 230 is configured such that when the negative electrode 10 on the first platform 210 is printed by the printing unit 300 to complete the printing of the insulating frame 20, the first platform 210 is driven to rotate toward the second platform 220 and engage with it, so as to transfer the negative electrode 10 from the first platform 210 to the second platform 220, and to make the insulating frame 20 face the second platform 220.

[0095] The first stage 210 is a support platform for receiving and stabilizing the negative electrode sheet 10. The function of the first stage 210 is to provide a positioning reference and force support for the negative electrode sheet 10 during the printing stage, so that the printing unit 300 can complete the forming of the insulating frame 20 within a preset area.

[0096] In one possible embodiment, the first stage 210 can be a vacuum adsorption stage, an edge clamping stage, or a partial limiting stage. The material of the first stage 210 can be aluminum alloy, precision steel, or high-strength composite material. The planar outline of the first stage 210 can be rectangular, rounded rectangle, or an irregular structure with guide bevels. The thickness of the stage 210 can be set from 5mm to 30mm according to the load-bearing rigidity requirements. The length and width can be similar to the outline of the negative electrode 10, with a clamping allowance of 2mm to 10mm reserved at the edge to ensure that the negative electrode 10 does not slip during the flipping and fastening process.

[0097] The second stage 220 is a support platform for receiving the negative electrode sheet 10 transferred from the first stage 210 and continuing to serve as a support reference. The function of the second stage 220 is to stably maintain the posture of the negative electrode sheet 10 after it is flipped and transferred, so that the printed insulating frame 20 faces the second stage 220 and facilitates subsequent process connections. In one possible embodiment, the second stage 220 may have the same or similar structure, size and material as the first stage 210.

[0098] The flipping assembly 230 is a transmission mechanism used to drive the first stage 210 to rotate around a predetermined axis and to engage with the second stage 220. The function of the flipping assembly 230 is to flip the negative electrode 10 together with the first stage 210 after printing, so that the negative electrode 10 is transferred from the first stage 210 to the second stage 220, while changing the orientation of the insulating frame 20 to provide conditions for subsequent processing or assembly of the other side.

[0099] In one possible embodiment, the flipping component 230 may adopt a hinged flipping type, servo rotation type or linkage type structure. The flipping component 230 may include a drive motor, which may be a servo motor, stepper motor or pneumatic rotary actuator. The flipping angle is usually set between 170 degrees and 190 degrees to achieve a near-flipping posture change. The latching gap can be controlled within the range of 0.1mm to 1mm to balance the smoothness of transfer and the stability of positioning.

[0100] The first platform 210 and the second platform 220 are located on both sides of the flipping assembly 230, and the first platform 210 and the second platform 220 are arranged symmetrically or approximately symmetrically in space to facilitate the receiving and handover during the flipping process; the second platform 220 is set on the support assembly 100, indicating that the second platform 220 has a fixed reference position, so as to provide a stable fastening surface when the first platform 210 flips and approaches.

[0101] The first stage 210 and the second stage 220 are connected and fitted through hinges, bushings, quick-locking components, or guide positioning surfaces, forming a mechanically repeatable dual-station transfer relationship, thereby enabling the negative electrode 10 to be reliably transferred between the first stage 210 and the second stage 220. It should be understood that the above example is for demonstration purposes only and is not limiting.

[0102] By fixing the negative electrode 10 onto the first stage 210, the printing unit 300 forms an insulating frame 20 at a preset printing position on the surface of the negative electrode 10, which is then instantly cured by the curing component 330, so that the insulating frame 20 maintains the required contour and thickness under the support of the first stage 210. The first stage 210 is driven to rotate toward the second stage 220 by the flipping component 230. During the rotation, the first stage 210 gradually approaches the second stage 220 and engages with it. Since the positioning reference, planar accuracy, and engagement gap of the first stage 210 and the second stage 220 are pre-matched, the negative electrode 10 can remain relatively stable without significant displacement during the flipping process, thereby achieving a smooth transfer from the first stage 210 to the second stage 220.

[0103] The negative electrode 10 is received by the second stage 220, and the original upward-facing insulating frame 20 is oriented towards the second stage 220 so that the posture of the negative electrode 10 meets the requirements of the subsequent process for the orientation of the processing surface. This helps to shorten the process connection time and improve the continuity of the manufacturing of the insulating frame 20 and the production adaptability.

[0104] Reference Figure 2 As shown, in some embodiments, this embodiment includes: a flipping assembly 230 including a rotating shaft 231, a movable seat 232, a fixed seat 233 and a connector 234, a first platform 210 disposed on the movable seat 232, a second platform 220 disposed on the fixed seat 233, the rotating shaft 231 disposed on one side of the fixed seat 233, the connector 234 inserted into the rotating shaft 231, both ends of the connector 234 being connected to the movable seat 232, and the rotating shaft 231 being used to drive the movable seat 232 to rotate toward the fixed seat 233.

[0105] The rotating shaft 231 is a shaft-type transmission component used to provide a rotation fulcrum and output a reversing torque. The function of the rotating shaft 231 is to drive the movable seat 232 to rotate around a predetermined axis under the action of the drive source, thereby realizing the attitude switching between the first platform 210 and the second platform 220.

[0106] In one possible embodiment, the rotating shaft 231 may be a solid round shaft, a hollow lightweight shaft, or a stepped shaft structure to take into account the requirements of strength, inertia, and installation fit. The material of the rotating shaft 231 may be hardened steel, stainless steel, or high-strength alloy steel, and the surface may be chrome-plated, nitrided, or blackened to improve wear resistance and corrosion resistance.

[0107] The movable seat 232 is a movable mounting seat that rotates with the rotating shaft 231 and is used to support the first platform 210. The function of the movable seat 232 is to reliably fix the first platform 210 on the flipping assembly 230 and complete the flipping movement under the drive of the rotating shaft 231.

[0108] In one possible embodiment, the movable seat 232 can be a plate-type seat, a frame-type seat, or a support-arm type seat. The material of the movable seat 232 can be aluminum alloy, welded steel plate, or cast steel to balance rigidity and lightweight requirements. The movable seat 232 can be provided with shaft holes, mounting ears, reinforcing ribs, or positioning grooves for forming screw connections, pin connections, or detachable locking connections with the connector 234 and the first platform 210. The shape of the movable seat 232 can be designed as a rectangle, U-shape, or portal structure according to the size of the negative electrode sheet 10.

[0109] The fixed base 233 is a static base that is fixedly installed on the support assembly 100 and used to support the second platform 220. The function of the fixed base 233 is to provide a stable installation reference for the second platform 220 and to serve as the locking end of the movable base 232 during the flipping process.

[0110] In one possible embodiment, the fixing seat 233 may adopt a base type, bracket type or column type structure. The material of the fixing seat 233 may be cast iron, welded steel plate or high rigidity alloy material to improve the overall deformation resistance. The fixing seat 233 may be provided with mounting holes, limiting surfaces and bearing seats for screwing and fixing with the support assembly 100 and supporting the rotating shaft 231. The outline of the fixing seat 233 may be block-shaped, plate-shaped or box-shaped.

[0111] The connector 234 is a connecting component inserted into the rotating shaft 231. The function of the connector 234 is to transmit the rotational motion of the rotating shaft 231 to the movable seat 232, and to maintain the connection and rotation synchronization between the movable seat 232 and the fixed seat 233 when the movable seat 232 is flipped.

[0112] In one possible embodiment, the connector 234 may be a pin, sleeve, connecting rod or bearing connection assembly, and the material may be high-strength steel, bearing steel or wear-resistant alloy. The connection between the two ends of the connector 234 and the movable seat 232 may be hinged, screwed or pinned. Alternatively, the connector 234 may be provided with through holes, ear plates or bearing mating sections to realize the insertion and mating of the connector 234 with the rotating shaft 231 and the reliable connection with the movable seat 232.

[0113] The first platform 210 is set on the movable seat 232, and the second platform 220 is set on the fixed seat 233. The first platform 210 and the second platform 220 correspond to the flip-out end and the fixed end, respectively. The first platform 210 is used to carry the negative electrode sheet 10 of the insulating frame 20 to be printed, and after flipping, it completes the transfer docking with the second platform 220. The second platform 220 is used to continue to carry the negative electrode sheet 10 into the subsequent work station after the transfer is completed.

[0114] After the negative electrode 10 is fixed to the movable seat 232, the printing unit 300 starts to rotate under the drive of the external drive mechanism after completing the reference identification and printing of the insulating frame 20. The connector 234 moves synchronously with the rotating shaft 231 and transmits the rotational motion to the movable seat 232, so that the movable seat 232 together with the first platform 210 rotates around the rotating shaft 231 toward the fixed seat 233. When the movable seat 232 rotates to a predetermined angle, the first platform 210 and the second platform 220 come into relative contact and complete the fastening or transfer engagement. The negative electrode 10 is then smoothly transferred from the first platform 210 to the second platform 220, and the formed insulating frame 20 faces the second platform 220, which facilitates the subsequent stacking, handling or assembly processes.

[0115] Since the rotating shaft 231, movable seat 232, fixed seat 233, and connecting piece 234 constitute a clear rotational support and transmission relationship, the first platform 210 and the second platform 220 can maintain a controllable relative position during the flipping process. This reduces the risk of the negative electrode sheet 10 shifting, shaking, or falling during transfer and helps maintain the spatial consistency between the insulating frame 20 and the edge of the negative electrode sheet 10. Based on the above analysis, it can be seen that the flipping assembly 230 can complete the station switching without changing the bearing reference of the negative electrode sheet 10, thereby improving the transfer stability, assembly continuity, and production adaptability of the negative electrode sheet 10 after printing. This helps to improve the consistency of subsequent processing and overall processing efficiency of the insulating frame 20 after forming. It should be understood that the above example is only for demonstration and not a limitation.

[0116] Reference Figures 1 to 3As shown, in some embodiments, this embodiment includes: at least three first printing slots 211 are provided on a first stage 210, and the at least three first printing slots 211 are evenly arranged along the length direction of the first stage 210; at least three second printing slots 221 are provided on a second stage 220, and the dimensions of the first printing slots 211 and the second printing slots 221 are the same as the dimensions of the negative electrode sheet 10; when the first stage 210 and the second stage 220 are fastened together, the first printing slots 211 and the second printing slots 221 correspond one-to-one; a flexible sealing ring 222 is also provided on the second printing slot 221, and the flexible sealing ring 222 surrounds the second printing slot 221; a clearance groove 2221 is provided on the flexible sealing ring 222; the negative electrode sheet 10 is disposed on one of the first printing slots 211 and the second printing slots 221; and an adsorption member 240 is also included, and an adsorption member 240 is provided on both the first printing slot 211 and the second printing slot 221, and the adsorption member 240 is used to adsorb and fix the negative electrode sheet 10.

[0117] The first printing groove 211 is a negative electrode sheet 10 receiving groove disposed on the first stage 210. The first printing groove 211 is used to position, support and limit the negative electrode sheet 10 during the printing process so that the negative electrode sheet 10 maintains a predetermined posture during inkjet printing and curing, thereby avoiding edge lifting or surface movement.

[0118] The second printing groove 221 is a corresponding bearing groove set on the second stage 220 to continue to bear the negative electrode sheet 10 after the stage is flipped or snapped together, and cooperates with the first printing groove 211 to complete the transfer and secondary processing.

[0119] The flexible sealing ring 222 is an elastic seal that surrounds the second printing groove 221 to form a groove seal when the second stage 220 and the first stage 210 are engaged, while providing a buffer for the engagement contact to reduce the compression damage to the negative electrode 10 and the insulating frame 20 already formed on the negative electrode 10.

[0120] The clearance groove 2221 is a partial clearance structure provided on the flexible sealing ring 222. The clearance groove 2221 is used to reserve space for the printed insulating frame 20 or the edge contour of the insulating frame 20, so as to avoid interference between the flexible sealing ring 222 and the insulating frame 20.

[0121] The adsorption component 240 is a fixing component used to apply adsorption force to the negative electrode 10 so as to communicate with the bottom, wall or peripheral area of ​​the first printing groove 211 and the second printing groove 221, so as to achieve the stability of the negative electrode 10 during printing, flipping and fastening processes.

[0122] In one possible embodiment, the first printing groove 211 and the second printing groove 221 may adopt a rectangular groove, a contoured groove or a shallow cavity groove structure; the rectangular groove is easy to adapt to the regular sheet-shaped negative electrode 10, the contoured groove can be boundary-fitted according to the outer contour of the negative electrode 10, and the shallow cavity groove can reduce the influence of the groove depth on the print head movement stroke while keeping the electrode flat.

[0123] The first printing groove 211 can be a groove integrally formed with the first stage 210, or it can be an insert-type replaceable groove core. The material of the first printing groove 211 can be metal, engineering plastic or ceramic composite material. The second printing groove 221 can also adopt the same shape or mirror structure. The material of the second printing groove 221 can be aluminum alloy, steel or high rigidity resin to ensure stable dimensional retention during fastening and alignment.

[0124] The flexible sealing ring 222 can be made of silicone, fluororubber or polyurethane elastomer. The cross-section of the flexible sealing ring 222 can be circular, square or lip-shaped. The installation method can be embedding, bonding or pressing. The clearance groove 2221 can be set as a recess, step or through notch opened along the local inner side of the flexible sealing ring 222 to adapt to the thickness and outward contour of the insulating frame 20.

[0125] The adsorption component 240 can be a vacuum suction hole, a micro negative pressure suction cup, or a porous adsorption plate. The vacuum suction hole can be evenly distributed on the bottom of the tank to form an array adsorption area, the micro negative pressure suction cup can be locally arranged at the edge support position, and the porous adsorption plate can achieve surface adsorption through the overall connected cavity.

[0126] The dimensions of the first printing groove 211 and the second printing groove 221 are usually the same as or approximately the same as the outer dimensions of the negative electrode 10, so that the circumferential edge of the negative electrode 10 is consistently limited. In some embodiments, a small assembly gap may be reserved between the outer contour of the first printing groove 211 and the second printing groove 221 and the negative electrode 10 to balance insertion smoothness and positioning accuracy. The assembly gap can be controlled within the range of micrometers to sub-millimeters according to the dimensional tolerance and printing accuracy requirements of the negative electrode 10.

[0127] At least three first printing slots 211 are evenly arranged along the length of the first stage 210, and at least three second printing slots 221 are also arranged accordingly to form a multi-station continuous bearing structure, thereby enabling the same equipment to switch between different stations to adapt to the cycle time requirements of batch printing and flip-over transfer. It should be understood that the above example is only for demonstration and not a limitation.

[0128] By placing the negative electrode 10 into the first printing groove 211, the adsorption member 240 is activated and forms a negative pressure to fix the negative electrode 10 through the adsorption channels at the bottom or around the groove of the first printing groove 211, so that the surface of the negative electrode 10 is in contact with the bearing surface of the groove and remains flat. After the printing unit 300 identifies the reference mark on the surface of the negative electrode 10 with the cooperation of the positioning member 310, it prints the insulating frame 20 on the surface of the negative electrode 10 at a preset position. During the printing process, the first printing groove 211 provides support for the negative electrode 10 to avoid displacement caused by inkjet impact.

[0129] When it is necessary to transfer the printed side to another bearing surface for further processing, that is, when it is necessary to print the insulating frame 20 on both surfaces of the negative electrode 10, the first stage 210 and the second stage 220 are engaged, and the first printing groove 211 and the second printing groove 221 correspond one-to-one, so that the negative electrode 10 can be stably transferred between the corresponding grooves. At the same time, the flexible sealing ring 222 set around the second printing groove 221 contacts the first stage 210 to form a sealing interface. The adsorption member 240 maintains the adsorption and fixation of the negative electrode 10 in the sealed state, while the clearance groove 2221 on the flexible sealing ring 222 provides clearance space for the formed insulating frame 20 to prevent the fastening pressure from directly acting on the edge of the insulating frame 20, thereby avoiding the deformation, scratching or peeling of the cured pattern under pressure.

[0130] Since the first printing slot 211 and the second printing slot 221 are both matched with the size of the negative electrode 10, and the multiple slots are evenly arranged along the length direction, a highly consistent bearing, printing and transfer process is achieved under multi-station conditions, reducing the offset of the negative electrode 10 when switching between different stations, and improving the relative stability between the boundary of the insulating frame 20 and the edge of the negative electrode 10.

[0131] Reference Figure 1 As shown, in some embodiments, this embodiment includes: a support assembly 100 including a first support member 110 and a second support member 120 disposed on the first support member 110, at least one of the first support member 110 and the second support member 120 being movable relative to the other; a carrying mechanism 200 disposed on the first support member 110, and a printing unit 300 disposed on the second support member 120; and a material handling assembly 400 including a loading member 410 and a unloading member 420, the loading member 410 being disposed at one end of the first support member 110 near the first platform 210, and the unloading member 420 being disposed at one end of the first support member 110 near the second platform 220.

[0132] The first support member 110 is a load-bearing structure used to form a foundation installation platform for equipment. The function of the first support member 110 is to provide stable support for the bearing mechanism 200, the material handling assembly 400 and related transmission components, and to serve as a reference for the arrangement of the first platform 210 and the second platform 220.

[0133] In one possible embodiment, the first support member 110 may be a long strip frame, a frame base or a box base, and the material may be aluminum profile, welded steel structure or cast iron platform. The length direction of the first support member 110 may correspond to the conveying direction of the negative electrode 10 and be consistent with the relative setting direction of the first platform 210 and the second platform 220. The width and height are configured according to the equipment footprint, operating space and the specifications of the negative electrode 10.

[0134] The second support member 120 is an upper support structure disposed above the first support member 110. The function of the second support member 120 is to provide an installation reference for the printing unit 300 and to realize the relative position adjustment between it and the bearing mechanism 200.

[0135] In one possible embodiment, the second support member 120 may be a beam-type bracket, a lifting column, or a sliding mounting bracket. The material may be a lightweight metal profile, a reinforcing rib plate, or a composite material frame. The second support member 120 and the first support member 110 can be raised, lowered, moved laterally, or finely adjusted through a screw pair, a linear guide rail, a lifting cylinder, or an electric push rod to ensure that the distance between the printing unit 300 and the surface of the negative electrode 10 meets the requirements for printing and curing.

[0136] The bearing mechanism 200 is mounted on the first support member 110 to stably support the negative electrode sheet 10 during processing and to provide a support base for flipping and transferring. The bearing mechanism 200 and the first support member 110 can be installed by bolt connection, positioning pin cooperation or slide rail guidance to improve the positioning accuracy and vibration resistance of the whole machine.

[0137] The printing unit 300 is mounted on the second support 120 and maintains a relatively stable working posture as the height or position of the second support 120 changes. The spatial relationship between the printing unit 300 and the surface of the negative electrode 10 can be corrected by adjusting the second support 120, thereby adapting to electrodes of different thicknesses or different surface heights.

[0138] The material handling component 400 is used to load and unload the negative electrode sheet 10 between workstations. The material handling component 400 includes a loading component 410 and an unloading component 420. The loading component 410 is located at one end of the first support member 110 near the first stage 210 so that the electrode sheet to be processed is fed into the working area of ​​the first stage 210 when the negative electrode sheet 10 enters the processing flow. The unloading component 420 is located at one end of the first support member 110 near the second stage 220 so that the finished negative electrode sheet 10 is exported from the second stage 220 after the negative electrode sheet 10 has been printed, flipped and cured.

[0139] In one possible embodiment, an adjustable mechanism is provided between the second support member 120 and the first support member 110, so that both the second support member 120 and the first support member 110 can move vertically or horizontally, thereby maintaining a predetermined working gap between the printhead 322 end face of the printing unit 300 and the surface of the negative electrode 10. This working gap is typically set according to the inkjet atomization characteristics, curing efficiency, and the surface flatness of the negative electrode 10, and can be controlled within a range of several millimeters to tens of millimeters, so as to ensure clear printing traces while avoiding interference between the printhead 322 and the electrode.

[0140] The first support member 110 and the second support member 120 can also be adopted in a combination of relatively fixed and relatively movable manner. That is, the first support member 110 remains stationary as a reference frame, while the second support member 120 moves up and down through a guide pair; or the second support member 120 is fixed, and the first support member 110 achieves position compensation through a leveling mechanism to adapt to the spatial layout and equipment maintenance requirements of different production lines.

[0141] After the bearing mechanism 200 and the printing unit 300 are respectively located on the first support member 110 and the second support member 120, the negative electrode sheet 10 can complete the actions of feeding, positioning, printing, flipping and unloading in a fixed station, thereby avoiding secondary positioning errors caused by transfer between multiple independent devices.

[0142] In one possible embodiment, the feeding component 410 may be provided with a positioning tray, an adsorption end, or a clamping claw. The adsorption surface or clamping surface of the feeding component 410 may be designed as a planar, strip, or dot matrix structure according to the size and surface material of the negative electrode sheet 10. The material may be anodized aluminum, engineering plastic, wear-resistant rubber, or stainless steel to balance weight, strength, and contamination resistance. The shape of the feeding component 410 may be a linear pushing type, a cantilever picking type, or a gantry moving type. The size is usually matched with the long side or short side of the negative electrode sheet 10, and an appropriate guide margin is reserved to ensure stable feeding.

[0143] The unloading component 420 can also adopt a similar structure to the loading component 410. The discharge end of the unloading component 420 can be equipped with a buffer guide surface or a release mechanism to reduce the risk of impact and scratch when the finished negative electrode sheet 10 is transferred from the second carrier 220 to the external conveying mechanism.

[0144] By arranging the loading component 410 on one side of the first platform 210 and the unloading component 420 on one side of the second platform 220, the entire machine can form a material flow path that advances sequentially along the process flow direction, ensuring a smooth process from the negative electrode sheet 10 entering the equipment to the output after the insulation frame 20 is formed. Based on the above structure, it can be seen that by adjusting the first support component 110 or the second support component 120, the space of the printing unit 300 or the carrying mechanism 200 can be adjusted, and the continuous transfer between the front and rear ends of the process is completed through the loading component 410 and the unloading component 420. This reduces manual intervention and intermediate handling steps, lowers the probability of surface contamination, positioning deviation, and assembly cycle fluctuation of the negative electrode sheet 10, thereby improving the consistency of the printed insulation frame 20, the production line adaptability of the equipment, and the overall processing efficiency. It should be understood that the above example is only for demonstration and not a limitation.

[0145] Reference Figure 6 As shown, this application embodiment provides a method for manufacturing a solid-state battery negative electrode 10, using an apparatus including the above-mentioned equipment for manufacturing an insulating frame 20 for a solid-state battery negative electrode 10. The manufacturing method includes: fixing the negative electrode 10 onto a support mechanism 200 of the solid-state battery negative electrode 10 manufacturing apparatus; driving a support assembly 100 of the solid-state battery negative electrode 10 manufacturing apparatus so that the printing unit 300 of the solid-state battery negative electrode 10 manufacturing apparatus is aligned with a preset printing position on the surface of the negative electrode 10; and printing and curing the insulating frame 20 at the preset printing position by the printing unit 300.

[0146] In one possible embodiment, the negative electrode sheet 10 to be processed is first placed flat and fixed on the support mechanism 200. The support mechanism 200 positions, supports, and prevents the negative electrode sheet 10 from shifting, so that the negative electrode sheet 10 maintains stable edge position and surface posture during the printing process. The support mechanism 200 is used to prevent the negative electrode sheet 10 from warping, slipping, or locally lifting under the action of the printing unit 300, thereby providing a basis for the dimensional control and forming uniformity of the insulating frame 20.

[0147] Subsequently, the support assembly 100 moves the printing unit 300 to align it with a preset printing position on the surface of the negative electrode 10. The preset printing position corresponds to the area on the negative electrode 10 where the insulating frame 20 needs to be formed. The support assembly 100 can adjust the relative position between the printing unit 300 and the carrier mechanism 200 along the direction to complete the alignment. By aligning the printing unit 300 with the preset printing position, the formation position of the insulating frame 20 can be kept consistent with the preset printing position, reducing the adverse effects caused by positional deviation. The control precision during the alignment process can be set according to the size and tolerance requirements of the negative electrode 10 and the width of the insulating frame 20, ensuring that the printing unit 300 completes the application of insulating material and contour forming at the preset printing position, thereby guaranteeing the consistency of processing different batches of negative electrode 10.

[0148] After alignment is completed in the printing unit 300, the insulating frame 20 is printed and cured at the preset printing position. The printing unit 300 applies insulating material to the surface of the negative electrode 10, forming the insulating frame 20 at the preset printing position; then the printed insulating material is cured, transforming it from a flowable or plastic state into a stable insulating frame 20 structure. The curing process ensures a stable bond between the insulating frame 20 and the surface of the negative electrode 10, maintaining the preset height, width, and contour morphology, thereby establishing an electrical isolation barrier between the edge of the negative electrode 10 and adjacent electrodes. Since the insulating frame 20 is printed directly on the surface of the negative electrode 10, no separate die-cutting or additional transfer process is required, thus reducing the accumulation of edge deviations and allowing the formation and curing of the insulating structure to be completed in the same equipment, thereby improving process connection efficiency and enhancing the adaptability to multiple specifications of negative electrode 10.

[0149] This application provides a method for preparing a negative electrode sheet 10 with an insulating frame 20, including fixing the negative electrode sheet 10 on a support mechanism 200 of an apparatus for manufacturing the insulating frame 20 of a solid-state battery negative electrode sheet 10, driving a support assembly 100 of the apparatus for manufacturing the insulating frame 20 of a solid-state battery negative electrode sheet 10 so that the printing unit 300 of the apparatus for manufacturing the insulating frame 20 of a solid-state battery negative electrode sheet 10 is aligned with a preset printing position on the surface of the negative electrode sheet 10, and printing and curing the insulating frame 20 at the preset printing position by the printing unit 300.

[0150] The negative electrode 10 is stably positioned by the bearing mechanism 200, and the printing unit 300 is precisely aligned with the target area by the support component 100. Combined with the integrated printing and curing process, the insulating frame 20 is stably formed on the surface of the negative electrode 10 according to the preset printing position, thus meeting the requirements for dimensional consistency, contour accuracy, and process continuity for edge insulation protection of the solid-state battery negative electrode 10. It should be understood that the above example is for demonstration purposes only and is not limiting. In actual implementation, the bearing method, alignment method, and curing method can be adapted and adjusted according to the size of the negative electrode 10, the characteristics of the insulating material, and the curing conditions.

[0151] Reference Figure 7 As shown, based on the aforementioned embodiments, the insulating frame 20 is further printed and cured at a preset printing position by the printing unit 300, including: printing and curing a first insulating frame 21 at a preset printing position on one surface of the negative electrode sheet 10 by the printing unit 300; and printing and curing a second insulating frame 22 at a preset printing position on the other surface of the negative electrode sheet 10 by the printing unit 300 when the first insulating frame 21 is rotated to face the support mechanism 200 by the support mechanism 200.

[0152] By fixing the negative electrode 10 to the support mechanism 200 and making one surface of the negative electrode 10 face the printing unit 300, the printing unit 300 continuously prints insulating material at a preset printing position according to a preset trajectory, and the resulting first insulating frame 21 is hardened and shaped under heating, light, or other curing conditions.

[0153] When it is necessary to print insulating frames 20 on both surfaces of the negative electrode 10, the bearing mechanism 200 drives the negative electrode 10 to rotate, so that the side that originally formed the first insulating frame 21 is moved away from the printing position and the other surface of the negative electrode 10 is moved to the printable position. The printing unit 300 aligns with the preset printing position on the other surface to continue printing and solidify the second insulating frame 22.

[0154] Both insulating frames 20 are formed by the same reference after being positioned by the bearing mechanism 200, so as to reduce the position deviation during the rotation process, improve the boundary consistency of the first insulating frame 21 and the second insulating frame 22, and keep the edge of the negative electrode sheet 10 stable and electrically isolated during subsequent stacking.

[0155] By first forming the first insulating frame 21 and then forming the second insulating frame 22 after rotation with the help of the bearing mechanism 200, continuous printing and curing of both sides of the negative electrode sheet 10 is achieved, so that the insulating frames 20 on both sides are directly formed on the surface of the negative electrode sheet 10. This avoids the problems of offset and uneven thickness caused by subsequent attachment or secondary correction, thereby improving the contour accuracy of the insulating frame 20, the correspondence between the two sides and the processing consistency, and improving the reliability of subsequent stacking and assembly of the negative electrode sheet 10.

[0156] Reference Figures 4 to 5 As shown, this application provides a solid-state battery negative electrode 10, which is manufactured using the manufacturing method of the solid-state battery negative electrode 10 provided above.

[0157] The negative electrode 10 is first stabilized and fixed by the aforementioned preparation method, and then the printing unit 300 directly forms and solidifies the insulating frame 20 on the surface of the negative electrode 10, so that the positional relationship between the insulating frame 20 and the edge area of ​​the negative electrode 10 can be easily and precisely controlled, thereby improving the dimensional accuracy and contour consistency of the insulation boundary.

[0158] Since the insulating frame 20 is formed in situ on the surface of the negative electrode 10, it reduces the offset, wrinkles, and thickness fluctuations introduced by die-cutting or adhesive application, making the bonding between the insulating frame 20 and the positive electrode stable. This, in turn, facilitates subsequent stacking alignment and assembly consistency. Therefore, this solid-state battery negative electrode 10 can effectively reduce the failure risk caused by edge contact in solid-state battery manufacturing, while also ensuring processing adaptability, mass production stability, and long-term reliability for products of different specifications.

[0159] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A manufacturing apparatus for a solid-state battery negative electrode sheet, characterized in that, include: Support components (100); A support mechanism (200) is disposed on the support assembly (100) and is used to fix the negative electrode sheet (10). A printing unit (300) is disposed on the support assembly (100) and located above the carrier mechanism (200). The printing unit (300) is used to print and cure an insulating frame (20) on the surface of the negative electrode sheet (10).

2. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 1, characterized in that, The printing unit (300) includes a positioning element (310), a printing component (320), and a curing element (330). The positioning element (310) is connected to the printing component (320). Both the positioning element (310) and the printing component (320) are disposed on the support component (100). The curing element (330) is disposed on the printing component (320). The printing assembly (320) is configured to print the insulating frame (20) at a preset printing position on the surface of the negative electrode sheet (10) when the positioning member (310) corresponds to a reference mark on the surface of the negative electrode sheet (10). The curing component (330) is used to cure the insulating frame (20).

3. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 2, characterized in that, The printing assembly (320) includes a plurality of inkjet channels (321) and printheads (322) disposed on the inkjet channels (321). Multiple inkjet channels (321) are connected to the positioning element (310), and the curing element (330) is sleeved on the printhead (322).

4. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 1, characterized in that, The carrying mechanism (200) includes a first platform (210), a second platform (220), and a flipping assembly (230). The first platform (210) and the second platform (220) are both connected to the flipping assembly (230), and the first platform (210) and the second platform (220) are respectively located on both sides of the flipping assembly (230); The second stage (220) is disposed on the support assembly (100), and the negative electrode sheet (10) is disposed on one of the first stage (210) and the second stage (220); The flipping assembly (230) is configured to drive the first stage (210) to rotate toward and engage with the second stage (220) when the negative electrode sheet (10) on the first stage (210) is printed by the printing unit (300) to complete the printing of the insulating frame (20), so as to transfer the negative electrode sheet (10) from the first stage (210) to the second stage (220) and make the insulating frame (20) face the second stage (220).

5. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 4, characterized in that, The flipping assembly (230) includes a rotating shaft (231), a movable seat (232), a fixed seat (233), and a connector (234). The first platform (210) is disposed on the movable seat (232), and the second platform (220) is disposed on the fixed seat (233). The rotating shaft (231) is disposed on one side of the fixed seat (233), and the connector (234) is inserted into the rotating shaft (231). Both ends of the connector (234) are connected to the movable seat (232). The rotating shaft (231) is used to drive the movable seat (232) to rotate toward the fixed seat (233).

6. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 5, characterized in that, The first stage (210) is provided with at least three first printing slots (211), and the at least three first printing slots (211) are evenly arranged along the length direction of the first stage (210); The second stage (220) is provided with at least three second printing slots (221), and the dimensions of the first printing slot (211) and the second printing slots (221) are the same as the dimensions of the negative electrode sheet (10); When the first stage (210) and the second stage (220) are engaged, the first printing slot (211) and the second printing slot (221) correspond one-to-one; The second printing groove (221) is also provided with a flexible sealing ring (222), which surrounds the second printing groove (221); the flexible sealing ring (222) is provided with a clearance groove (2221). The negative electrode (10) is disposed on one of the first printing slot (211) and the second printing slot (221); It also includes an adsorption element (240), which is provided on both the first printing groove (211) and the second printing groove (221). The adsorption element (240) is used to adsorb and fix the negative electrode sheet (10).

7. The equipment for manufacturing solid-state battery negative electrode sheets according to claim 4, characterized in that, The support assembly (100) includes a first support member (110) and a second support member (120) disposed on the first support member (110), wherein at least one of the first support member (110) and the second support member (120) is movable relative to the other; The bearing mechanism (200) is disposed on the first support member (110), and the printing unit (300) is disposed on the second support member (120); It also includes a material handling component (400), which includes a loading component (410) and a unloading component (420). The loading component (410) is disposed at one end of the first support component (110) near the first platform (210), and the unloading component (420) is disposed at one end of the first support component (110) near the second platform (220).

8. A method for manufacturing a solid-state battery negative electrode, characterized in that, The manufacturing method using the solid-state battery negative electrode sheet manufacturing equipment according to any one of claims 1-7 includes: The negative electrode sheet (10) is fixed on the support mechanism (200) of the solid-state battery negative electrode sheet manufacturing equipment; The support assembly (100) of the solid-state battery negative electrode manufacturing equipment is driven so that the printing unit (300) of the solid-state battery negative electrode manufacturing equipment is aligned with a preset printing position on the surface of the negative electrode (10); The insulating frame (20) is printed and cured at the preset printing position by the printing unit (300).

9. The method for manufacturing a solid-state battery negative electrode sheet according to claim 8, characterized in that, The process of printing and curing the insulating frame (20) at the preset printing position by the printing unit (300) includes: The first insulating frame (21) is printed and cured by the printing unit (300) at the preset printing position on one surface of the negative electrode sheet (10). When the first insulating frame (21) is driven to rotate toward the carrier mechanism (200) by the carrier mechanism (200), the second insulating frame (22) is printed and cured by the printing unit (300) at the preset printing position on the other surface of the negative electrode sheet (10).

10. A solid-state battery negative electrode sheet, characterized in that, It is manufactured using the manufacturing method of the solid-state battery negative electrode sheet as described in claim 8 or 9.

Images