Pole piece manufacturing equipment and solid-state battery production line

Abstract

The utility model discloses pole piece manufacturing equipment and a solid-state battery production line, and belongs to the technical field of solid-state battery manufacturing, the pole piece manufacturing equipment comprises a workbench, a composite film conveying mechanism, a stripping mechanism, a transfer mechanism and a transfer printing mechanism, the composite film conveying mechanism is used for conveying a composite film along a set direction; the composite film comprises an isolating film, a rubber frame layer and a material belt film which are stacked in sequence, and the rubber frame layer comprises a plurality of rubber frames arranged in the extending direction of the material belt film; the stripping mechanism is used for stripping an isolating film from the composite film to expose the rubber frame layer, and the composite film conveying mechanism can convey the rubber frame layer and the material belt film to the position above the workbench; the transfer mechanism is used for transferring the electrode plate to the upper end of the exposed rubber frame; the transfer printing mechanism is arranged above the workbench and used for pressing the electrode plate and the rubber frame, so that the rubber frame is connected with the surface of the electrode plate, the attaching effect of the solid electrolyte membrane and the electrode plate is improved, and the quality of a solid-state battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state battery manufacturing, in particular to pole piece manufacturing equipment and a solid-state battery production line. Background Art

[0002] Solid-state batteries are batteries that use solid electrolytes to replace the separators and liquid electrolytes in traditional batteries. Solid-state lithium batteries can use lithium metal anodes to replace the graphite or silicon anodes in traditional lithium-ion batteries. Lithium metal anodes have a higher energy density than traditional anodes, allowing batteries to store more energy in the same volume.

[0003] In related technologies, during the production process of solid-state batteries, it is difficult for the solid electrolyte membrane and the electrode membrane to be fully bonded, and when the solid electrolyte membrane or the electrode membrane is subjected to lateral force, lateral displacement of the solid electrolyte membrane relative to the electrode membrane is likely to occur, resulting in poor quality of the solid-state battery. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pole piece manufacturing device that is conducive to improving the bonding effect between the solid electrolyte membrane and the pole piece, thereby improving the quality of the solid-state battery.

[0005] The utility model also proposes a solid-state battery production line.

[0006] According to the electrode manufacturing equipment of the embodiment of the first aspect of the present utility model, it includes: a workbench; a composite film conveying mechanism, which is used to convey the composite film along a set direction, the composite film includes an isolation film, a rubber frame layer and a material film stacked in sequence, and the rubber frame layer includes a plurality of rubber frames arranged along the extension direction of the material film; a peeling mechanism, which is used to peel off the isolation film of the composite film to expose the rubber frame layer, and the composite film conveying mechanism can convey the rubber frame layer and the material film to the top of the workbench; a transfer mechanism, which is used to transfer the electrode sheet to the upper end of the exposed rubber frame; a transfer mechanism, which is arranged above the workbench, and is used to press the electrode sheet and the rubber frame to connect the rubber frame to the surface of the electrode sheet.

[0007] The electrode manufacturing equipment according to the embodiment of the present invention has at least the following beneficial effects: the composite film conveying mechanism is used to continuously convey the composite film along a set direction, the composite film includes an isolation film, a glue frame layer and a material strip film stacked in sequence, that is, the glue frame layer is arranged between the isolation film and the material strip film, and includes a plurality of glue frames arranged along the extension direction of the material strip film, the peeling mechanism is used to peel off the isolation film from the composite film, thereby exposing the glue frame layer, the composite film conveying mechanism can continuously convey the exposed glue frame layer and the material strip film to the top of the workbench, the transfer mechanism is used to transfer the electrode sheet to the upper end of the exposed glue frame, and the transfer mechanism is provided above the workbench for pressing the electrode sheet and the glue frame so that the glue frame is connected to the surface of the electrode sheet, so as to facilitate the transfer of the glue frame from the material strip film to the electrode sheet. The electrode manufacturing equipment forms a rubber frame on the electrode sheet by transferring the rubber frame, which is beneficial to improving the efficiency of forming the rubber frame on the electrode sheet, and the shape of the rubber frame during transfer is relatively stable, which is beneficial to improving the forming effect of the rubber frame on the electrode sheet. In the manufacturing process of the solid-state battery, the electrode sheet can be one of the positive electrode sheet and the negative electrode sheet. After the other of the positive electrode sheet and the negative electrode sheet, the solid electrolyte membrane and the electrode sheet are stacked in sequence, and the other of the positive electrode sheet and the negative electrode sheet is embedded in the rubber frame, and the solid electrolyte membrane is arranged between the positive electrode sheet and the negative electrode sheet, the lateral limitation of the rubber frame is beneficial to avoid the lateral displacement of the solid electrolyte membrane relative to the positive electrode sheet or the negative electrode sheet, and improve the fitting effect of the solid electrolyte membrane and the positive electrode sheet or the negative electrode sheet, so as to improve the forming quality of the solid-state battery.

[0008] According to some embodiments of the present invention, the composite film conveying mechanism includes a unwinding roller, a first winding roller and a first rotary driver. The first rotary driver is transmission-connected to the unwinding roller and the first winding roller to drive the unwinding roller and the first winding roller to rotate. The unwinding roller is used to unwind the composite film, and the first winding roller is used to wind up the material strip film so that the material strip film is peeled off from the electrode sheet bonded with the rubber frame.

[0009] Specifically, the composite film conveying mechanism includes a unwinding roller, a first winding roller and a first rotary driver. The composite film is initially in a coil state and is wound on the unwinding roller. The first rotary driver is transmission-connected to the unwinding roller and the first winding roller to drive the unwinding roller and the first winding roller to rotate, thereby realizing the unwinding of the composite film by the unwinding roller. The two ends of the strip film are respectively connected to the unwinding roller and the first winding roller. In conjunction with the rotation of the first winding roller, the composite film can be conveyed and the strip film can be wound. The first winding roller can apply traction force to the strip film so that the strip film is peeled off from the electrode sheet with the glue frame attached to complete the transfer of the glue frame from the strip film to the electrode sheet.

[0010] According to some embodiments of the present invention, the peeling mechanism includes a second winding roller, the first rotary driver is in driving connection with the second winding roller to drive the second winding roller to rotate, and the second winding roller is used to wind up the isolation film.

[0011] Specifically, the peeling mechanism includes a second winding roller, a first rotary driver is transmission-connected to the second winding roller, and both ends of the isolation film are respectively connected to the unwinding roller and the second winding roller. Under the driving action of the first rotary driver, the unwinding roller and the second winding roller are rotated. The second winding roller can wind up the isolation film through the rotational coordination of the unwinding roller and the second winding roller. The traction force applied by the second winding roller to the isolation film can realize the peeling of the isolation film relative to the rubber frame layer, so that the rubber frame is exposed. Under the transfer action of the transfer mechanism on the electrode sheet, the electrode sheet and the rubber frame can be stacked, and the transfer mechanism cooperates to press the electrode sheet and the rubber frame to realize the transfer of the rubber frame.

[0012] According to some embodiments of the present invention, the transfer mechanism includes a linear drive and a pressure plate, wherein the linear drive is in transmission connection with the pressure plate to drive the pressure plate toward or away from the workbench; and / or,

[0013] The transfer mechanism also includes a heater, which is used to supply heat to the glue frame.

[0014] Optionally, the transfer mechanism includes a linear drive and a pressure plate, and the linear drive is connected to the pressure plate to drive the pressure plate closer to or away from the workbench. The electrode sheet and the rubber frame can be conveyed to the bottom of the pressure plate together. When the linear drive drives the pressure plate closer to the workbench, a clamping force can be applied to the electrode sheet and the rubber frame to facilitate the transfer of the rubber frame, so that the rubber frame is transferred from the material strip film to the electrode sheet. The electrode sheet can be one of the positive electrode sheet and the negative electrode sheet, and the other of the positive electrode sheet and the negative electrode sheet, the solid electrolyte membrane and the electrode sheet are respectively After the second stacking, the positive electrode sheet and the negative electrode sheet are embedded in the rubber frame, and the solid electrolyte membrane is arranged between the positive electrode sheet and the negative electrode sheet. The lateral limitation of the rubber frame is helpful to avoid the lateral displacement of the solid electrolyte membrane relative to the positive electrode sheet or the negative electrode sheet, and improve the fitting effect of the solid electrolyte membrane and the positive electrode sheet or the negative electrode sheet, so as to improve the molding quality of the solid-state battery; optionally, the transfer mechanism also includes a heater, which is used to supply heat to the rubber frame, and the heat supplied to the rubber frame by the heater is used to facilitate the transfer of the rubber frame to the surface of the electrode sheet.

[0015] According to some embodiments of the present invention, the present invention also includes a negative pressure component, which is arranged below the top surface of the workbench. The material strip film is provided with multiple air holes. The negative pressure component can generate negative pressure to absorb the electrode sheet stacked on the plastic frame from top to bottom, so that the electrode sheet, plastic frame, material strip film and the top surface of the workbench are fitted in sequence.

[0016] Taking into account that under the pressure of the transfer mechanism, the electrode sheet is prone to lateral displacement relative to the rubber frame, which leads to poor molding effect of the rubber frame on the electrode sheet, the electrode sheet manufacturing equipment also includes a negative pressure component, which is arranged below the top surface of the workbench, and a plurality of air holes are opened on the material strip film. The air holes are set to allow gas to pass through the material strip film. The negative pressure component can generate negative pressure to downwardly absorb the electrode sheet stacked on the rubber frame, so that the electrode sheet, rubber frame, material strip film and the top surface of the workbench are sequentially fitted. Through the negative pressure attraction method, it is beneficial to improve the stability of the positioning of the electrode sheet on the rubber frame, reduce the lateral displacement of the electrode sheet on the rubber frame, so as to improve the positioning accuracy of the electrode sheet and the rubber frame, thereby indirectly improving the molding effect of the rubber frame on the electrode sheet, which is beneficial to improving the production quality of solid-state batteries.

[0017] According to some embodiments of the present invention, the present invention further includes a colloid curing component, which is used to accelerate the curing of the glue frame located on the electrode sheet.

[0018] Taking into account that the curing speed of the glue frame will affect the production efficiency of the electrode, the electrode manufacturing equipment also includes a colloid curing component. After the glue frame is transferred to the electrode, the colloid curing component is used to accelerate the curing of the glue frame on the electrode, that is, shorten the waiting time for the glue frame to cure, which is beneficial to improving the electrode production efficiency of the solid-state battery.

[0019] According to some embodiments of the present invention, the present invention further includes a visual recognition component, which can identify the position of the plastic frame, and the transfer mechanism is configured to transfer the electrode sheet to the upper end of the plastic frame according to the position of the plastic frame identified by the visual recognition component.

[0020] In order to improve the accuracy of positioning the rubber frame and the electrode sheet, and to improve the effect of the rubber frame forming on the electrode sheet, the electrode sheet manufacturing equipment also includes a visual recognition component, which can identify the position of the rubber frame. The transfer mechanism is configured to transfer the electrode sheet to the upper end of the rubber frame according to the position of the rubber frame identified by the visual recognition component. The cooperation between the visual recognition component and the transfer mechanism is conducive to more accurately transferring the electrode sheet to the upper end of the rubber frame, so as to improve the positioning effect of the electrode sheet and the rubber frame, and thereby improve the effect of the rubber frame forming on the electrode sheet.

[0021] According to some embodiments of the present invention, the present invention also includes a flipping mechanism and an electrode sheet conveying mechanism. The workbench, the composite film conveying mechanism, the peeling mechanism, the transfer mechanism and the transfer mechanism together constitute a transfer device. Two transfer devices are provided. The flipping mechanism is provided between the two transfer devices. The flipping mechanism is used to flip the electrode sheet. The electrode sheet conveying mechanism is used to convey the electrode sheet between the flipping mechanism and the transfer device.

[0022] Taking into account that the positive and negative electrodes in the solid-state battery are both provided with multiple layers, and the positive electrodes and the negative electrodes are arranged in an alternating stack, the electrode manufacturing equipment also includes an electrode conveying mechanism and a flipping mechanism. The workbench, the composite film conveying mechanism, the transfer mechanism and the transfer mechanism together constitute a transfer device. Two transfer devices are provided, and the flipping mechanism is provided between the two transfer devices. The flipping mechanism is used to flip the electrode sheet, and the electrode conveying mechanism is used to convey the electrode sheet between the flipping mechanism and the transfer device. One of the transfer devices can realize the transfer processing of the rubber frame on one end face of the electrode sheet, so that one end face of the electrode sheet is formed into a rubber frame. Under the conveying action of the electrode conveying mechanism, the electrode sheet with a rubber frame formed on one end is conveyed. It is sent to the flipping mechanism, which is used to flip the electrode sheet. Under the conveying action of the electrode sheet conveying mechanism, the flipped electrode sheet is conveyed to another transfer device for rubber frame transfer processing, so that the other end face of the electrode sheet is also formed with a rubber frame, that is, two rubber frames are formed on the two end faces of the electrode sheet respectively. In the step of alternating and stacking multiple positive and negative electrode sheets, the two ends of the electrode sheet are respectively connected to the two positive electrode sheets or the two negative electrode sheets, and are embedded. The rubber frame formed on the electrode sheet can be embedded with the solid electrolyte membrane, and the positive electrode sheet or the negative electrode sheet, which is beneficial to limit the lateral displacement of the solid electrolyte membrane relative to the positive electrode sheet or the negative electrode sheet, so as to improve the bonding effect between the solid electrolyte membrane and the positive electrode sheet and the negative electrode sheet.

[0023] According to some embodiments of the present invention, the flipping mechanism includes a second rotary drive and a manipulator, the manipulator has a suction cup or a clamp, the manipulator is used to be detachably connected to the electrode sheet, and the second rotary drive is transmission-connected to the manipulator to drive the manipulator to flip.

[0024] Specifically, the flipping mechanism includes a second rotary drive and a manipulator. Under the conveying action of the electrode sheet conveying mechanism, the electrode sheet is conveyed to the flipping mechanism. The manipulator has a suction cup or a clamp. The suction cup adsorbs the electrode sheet or the clamp clamps the electrode sheet, so as to realize the detachable connection between the manipulator and the electrode sheet. The second rotary drive is connected to the manipulator to drive the manipulator to flip the electrode sheet, so as to realize the flipping operation of the electrode sheet.

[0025] According to the solid-state battery production line of the embodiment of the second aspect of the present invention, it includes the electrode sheet manufacturing equipment shown in the first aspect, and the electrode sheet is one of the positive electrode sheet and the negative electrode sheet; a stacking device is used to stack the other of the positive electrode sheet and the negative electrode sheet, the solid electrolyte membrane and the electrode sheet in sequence, and embed the other of the positive electrode sheet and the negative electrode sheet in the rubber frame.

[0026] The solid-state battery production line according to the embodiment of the present invention has at least the following beneficial effects: the solid-state battery production line includes an electrode manufacturing device as any one of the first aspects, the composite film conveying mechanism is used to continuously convey the composite film along a set direction, the composite film includes an isolation film, a rubber frame layer and a material strip film stacked in sequence, that is, the rubber frame layer is arranged between the isolation film and the material strip film, and includes a plurality of rubber frames arranged along the extension direction of the material strip film, the peeling mechanism is used to peel the isolation film from the composite film, thereby exposing the rubber frame layer, the composite film conveying mechanism can continuously convey the exposed rubber frame layer and the material strip film to the top of the workbench, the transfer mechanism is used to transfer the electrode sheet to the upper end of the exposed rubber frame, and the transfer mechanism is arranged above the workbench for pressing the electrode sheet and the rubber frame , so that the rubber frame is connected to the surface of the electrode sheet, so as to facilitate the transfer of the rubber frame from the material strip film to the electrode sheet. The electrode manufacturing equipment forms the rubber frame on the electrode sheet by transferring the rubber frame, which is beneficial to improving the efficiency of forming the rubber frame on the electrode sheet, and the shape of the rubber frame is relatively stable during transfer, which is beneficial to improving the forming effect of the rubber frame on the electrode sheet; the stacking equipment is used to stack the other side of the positive electrode sheet and the negative electrode sheet, the solid electrolyte membrane and the electrode sheet in sequence, and embed the other side of the positive electrode sheet and the negative electrode sheet in the rubber frame. The lateral limitation of the rubber frame is beneficial to avoid the lateral displacement of the solid electrolyte membrane relative to the positive electrode sheet or the negative electrode sheet, and improve the fitting effect of the solid electrolyte membrane and the positive electrode sheet or the negative electrode sheet, so as to improve the forming quality of the solid-state battery.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic structural diagram of a pole piece manufacturing device according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A structural diagram of a transfer device of a pole piece manufacturing device shown in FIG;

[0031] Figure 3 This is a structural diagram of a pole piece manufacturing device according to an embodiment of the present invention performing clamping and conveying of a strip film;

[0032] Figure 4 A schematic structural diagram of laminating electrode sheets produced by an electrode sheet manufacturing device according to an embodiment of the present invention;

[0033] Figure 5 for Figure 4 FIG. 1 is a top view of the electrode sheets produced by the electrode sheet manufacturing equipment shown in FIG.

[0034] Figure Number:

[0035] 100, workbench; 110, bottom support; 120, pressing plate;

[0036] 200, composite film conveying mechanism; 210, unwinding roller; 220, first winding roller; 230, composite film; 231, strip film; 232, isolation film;

[0037] 300, peeling mechanism; 310, second winding roller;

[0038] 400, transfer agency;

[0039] 500, transfer mechanism;

[0040] 600, colloid curing components;

[0041] 700, turning mechanism;

[0042] 800, electrode conveying mechanism;

[0043] 910, negative electrode sheet; 920, plastic frame; 930, positive electrode sheet. DETAILED DESCRIPTION

[0044] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Reference Figures 1 to 5 As shown, an electrode manufacturing device according to an embodiment of the present invention includes: a workbench 100, a composite film conveying mechanism 200, a peeling mechanism 300, a transfer mechanism 400 and a transfer mechanism 500.

[0049] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the composite film conveying mechanism 200 is used to convey the composite film 230 along a set direction. The composite film 230 includes an isolation film 232, a rubber frame layer and a material film 231 stacked in sequence. The rubber frame layer includes a plurality of rubber frames 920 arranged along the extension direction of the material film 231, that is, the rubber frame layer is arranged between the isolation film 232 and the material film 231. The material film 231 can be used as a base material for carrying the rubber frame layer, and the isolation film 232 is used to seal the rubber frame layer, so that the rubber frame layer is built-in, so that the composite film 230 can be rolled into a coil shape, and it is beneficial to retain the shape of the rubber frame 920 and reduce damage to the shape of the rubber frame 920.

[0050] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the ends of the isolation film 232 are connected to the composite film conveying mechanism 200 and the peeling mechanism 300, respectively. The peeling mechanism 300 can apply a pulling force to the isolation film 232, thereby separating the isolation film 232 from the composite film 230, thereby exposing the adhesive frame layer. The composite film conveying mechanism 200 can convey the adhesive frame layer and the material film strip 231 to the top of the workbench 100; the following description uses the conveying direction of the adhesive frame layer and the material film strip 231 from back to front as an example.

[0051] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the transfer mechanism 400 is used to transfer the electrode sheet onto the workbench 100 and to transfer the electrode sheet to the upper end of the exposed plastic frame 920 to achieve stacking of the electrode sheet and the plastic frame 920. The transfer mechanism 500 is provided above the workbench 100 and is used to press the electrode sheet and the plastic frame 920 together, so that the plastic frame 920 is connected to the surface of the electrode sheet, thereby facilitating the transfer of the plastic frame 920 from the strip film 231 to the electrode sheet.

[0052] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the electrode manufacturing equipment forms the rubber frame 920 on the electrode sheet by transferring the rubber frame 920, which is beneficial to improving the efficiency of forming the rubber frame 920 on the electrode sheet, and the shape of the rubber frame 920 is relatively stable during transfer, which is beneficial to improving the forming effect of the rubber frame 920 on the electrode sheet.

[0053] Reference Figure 1 、 Figure 4 and Figure 5 As shown, in the manufacturing process of the solid-state battery, the electrode sheet can be one of the positive electrode sheet 930 and the negative electrode sheet 910. In the lamination process of the solid-state battery, after the positive electrode sheet 930 and the other of the negative electrode sheet 910, the solid electrolyte membrane and the electrode sheet are stacked in sequence, the positive electrode sheet 930 and the other of the negative electrode sheet 910 are embedded in the rubber frame 920, so that the solid electrolyte membrane is arranged between the positive electrode sheet 930 and the negative electrode sheet 910. The lateral limitation of the rubber frame 920 is conducive to avoiding lateral displacement of the solid electrolyte membrane and the positive electrode sheet 930 or the negative electrode sheet 910. By applying pressure to the positive electrode sheet 930, the solid electrolyte membrane and the negative electrode sheet 910, the solid electrolyte membrane and the positive electrode sheet 930 or the negative electrode sheet 910 can be better bonded together, that is, the bonding effect of the solid electrolyte membrane and the positive electrode sheet 930 or the negative electrode sheet 910 is improved, thereby improving the molding quality of the solid-state battery.

[0054] It should be noted that the glue frame 920 can be formed on the material film 231 by screen printing, gluing, dispensing, etc., and the composite film 230 is formed by compounding the isolation film 232 with the material film 231 .

[0055] The material film 231 can be a PET (polyethylene terephthalate) film, a PP (polypropylene) film, a PC (polycarbonate) film, etc.; the isolation film 232 can be a release paper (also called silicone oil paper, anti-sticking paper).

[0056] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it can be understood that the composite film conveying mechanism 200 includes an unwinding roller 210, a first winding roller 220 and a first rotary driver. The first rotary driver is in transmission connection with the unwinding roller 210 and the first winding roller 220 to drive the unwinding roller 210 and the first winding roller 220 to rotate. The composite film 230 can be a coil and is connected to the unwinding roller 210. The rotation of the unwinding roller 210 can realize the unwinding of the composite film 230. The two ends of the strip film 231 are respectively connected to the unwinding roller 210 and the first winding roller 220. The rotation of the first winding roller 220 can realize the conveyance of the composite film 230 and the winding of the strip film 231. The first winding roller 220 can apply a traction force to the strip film 231 to peel the strip film 231 from the electrode sheet attached to the plastic frame 920.

[0057] Reference Figure 1 、 Figure 2 and Figure 4As shown, specifically, the peeling mechanism 300 includes a second winding roller 310 , and the first rotary driver is in driving connection with the second winding roller 310 to drive the second winding roller 310 to rotate. The second winding roller 310 is used to wind up the isolation film 232 . The two ends of the isolation film 232 are respectively connected to the unwinding roller 210 and the second winding roller 310. Under the driving action of the first rotary driver, the unwinding roller 210 and the second winding roller 310 can rotate. Through the rotational coordination of the unwinding roller 210 and the second winding roller 310, the isolation film 232 can be wound by the second winding roller 310. The traction force applied by the second winding roller 310 to the isolation film 232 can realize the peeling of the isolation film 232 relative to the rubber frame layer, so that the rubber frame 920 is exposed. Under the transfer action of the transfer mechanism 400 on the electrode sheet, the electrode sheet and the rubber frame 920 can be stacked and arranged. The transfer mechanism 500 cooperates to press the electrode sheet and the rubber frame 920 to realize the transfer of the rubber frame 920.

[0058] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the first rotator can be a driving motor, and the first rotator can be connected to the unwinding roller 210, the first winding roller 220 and the second winding roller 310 through a transmission structure such as a gear set, a belt or a sprocket to drive the unwinding roller 210, the first winding roller 220 and the second winding roller 310 to rotate.

[0059] Reference Figure 1 、 Figure 4 and Figure 5 As shown, it can be understood that the transfer mechanism 500 includes a linear drive and a pressure plate 120. The linear drive is connected to the pressure plate 120 to drive the pressure plate 120 to move closer to or away from the workbench 100. The electrode sheet and the rubber frame 920 can be transported together to the bottom of the pressure plate 120. When the linear drive drives the pressure plate 120 to move closer to the workbench 100, a pressing force can be applied to the electrode sheet and the rubber frame 920 to bring them closer to each other, so as to facilitate the transfer of the rubber frame 920, so that the rubber frame 920 is transferred from the material film 231 to the electrode sheet. The electrode sheet can be one of the positive electrode sheet 930 and the negative electrode sheet 910. In the stacking process of the solid-state battery, the other of the positive electrode sheet 930 and the negative electrode sheet 910, the solid electrolyte membrane and the electrode sheet are stacked in sequence, and the other of the positive electrode sheet 930 and the negative electrode sheet 910 are embedded in the rubber frame 920, and the solid electrolyte membrane is arranged between the positive electrode sheet 930 and the negative electrode sheet 910. The lateral limitation of the rubber frame 920 is helpful to avoid the lateral displacement of the solid electrolyte membrane and the positive electrode sheet 930 or the negative electrode sheet 910, and improve the fitting effect of the solid electrolyte membrane and the positive electrode sheet 930 or the negative electrode sheet 910, so as to improve the molding quality of the solid-state battery.

[0060] Reference Figure 1 、 Figure 4and Figure 5 As shown, the transfer mechanism 500 further includes a heater for supplying heat to the plastic frame 920 . The heat supplied by the heater to the plastic frame 920 facilitates the transfer of the plastic frame 920 to the surface of the electrode sheet, thereby improving the transfer efficiency of the plastic frame 920 .

[0061] It should be noted that the linear actuator may be a linear drive device such as an air cylinder, an oil cylinder, a linear module, etc. The heater may be a heating device such as an electromagnetic heater, a resistance heater, or an infrared heater.

[0062] It should be understood that in some other embodiments, the transfer mechanism 500 includes a first pressing roller and a second pressing roller, the first pressing roller abuts against the lower end of the material strip film 231, and the second pressing roller abuts against the upper end of the electrode sheet. Through the rotational cooperation of the first pressing roller and the second pressing roller, the electrode sheet and the rubber frame 920 can be driven to be pressed together, thereby realizing the transfer of the rubber frame 920, so that the rubber frame 920 is transferred from the material strip film 231 to the electrode sheet.

[0063] It should be understood that in some other embodiments, the plastic frame 920 may be a light-sensitive colloid, and the plastic frame 920 can be irradiated with a specific light source to facilitate separation of the plastic frame 920 from the material film 231 and connection between the plastic frame 920 and the electrode sheet.

[0064] Reference Figure 1 、 Figure 2 and Figure 3 As shown, it can be understood that in this embodiment, the workbench 100 includes a transverse drive and a clamping assembly. The clamping assembly includes a base 110, a frame, two pressure plates 120, and an opening and closing drive. The two pressure plates 120 are arranged in a front-to-back manner and are both connected to the frame. The opening and closing drive is connected to the frame and the base 110 to drive the frame to open and close relative to the base 110. The transverse drive is connected to the clamping assembly to drive the clamping assembly to move back and forth.

[0065] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the glue frame layer and the material strip film 231 can pass through the gap between the base 110 and the pressure plate 120 together. Under the driving action of the opening and closing driver, the pressure plate 120 and the base 110 can clamp the material strip film 231 together. The space between the two pressure plates 120 can be used to accommodate the glue frame 920. The setting of the base 110 can be used to support the material strip film 231, the glue frame layer, the electrode sheet, and the pressure applied by the transfer mechanism 500.

[0066] Reference Figure 1 、 Figure 2 and Figure 3As shown, the transfer mechanism 400 can place the electrode sheet between the two pressure plates 120, and place the electrode sheet at the upper end of the rubber frame 920. Under the driving action of the transverse drive, the electrode sheet and the rubber frame 920 can be clamped and conveyed together. The support of the electrode sheet and the rubber frame 920 by the bottom support 110 is conducive to avoiding the problem of the electrode sheet and the rubber frame 920 being offset due to the low conveying accuracy of the composite film conveying mechanism 200, and is conducive to improving the positioning accuracy of the electrode sheet and the rubber frame 920.

[0067] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the workbench 100 may include two groups of clamping assemblies, and the transverse drive may drive the two groups of clamping assemblies to move forward and backward synchronously. The cooperation of the two groups of clamping assemblies is beneficial to reducing the driving stroke of the transverse drive, which is beneficial to reducing the downtime or waiting time of the electrode manufacturing equipment, so as to improve the production efficiency of the electrode.

[0068] It should be noted that the opening and closing drive may include two linear drive devices such as air cylinders, oil cylinders, linear modules, etc., which are respectively connected to the base support 110 and the frame through the two linear drive devices, thereby driving the base support 110 and the frame to move closer to or away from each other; the transverse movement drive may be a linear drive device such as air cylinders, oil cylinders, linear modules, etc.

[0069] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it is understandable that, considering that under the pressing action of the transfer mechanism 500, the electrode sheet is prone to lateral displacement with the glue frame 920, which leads to the problem of poor molding effect of the glue frame 920 on the electrode sheet, the electrode sheet manufacturing equipment also includes a negative pressure component, which is arranged below the top surface of the workbench 100, and the material strip film 231 is provided with a plurality of air holes. The hollow area of each glue frame 920 corresponds to a plurality of air holes, and the supporting surface of the bottom support 110 is provided with a plurality of leakage holes. The negative pressure component can act on the material strip film 231 through the leakage holes. The negative pressure component can generate negative pressure to absorb the electrode sheet stacked on the glue frame 920 from top to bottom, so that the electrode sheet, the glue frame 920, the material strip film 231 and the top surface of the workbench 100 are fitted in sequence.

[0070] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the electrode manufacturing equipment is beneficial to improving the stability of the electrode sheet positioning on the rubber frame 920 through negative pressure suction, reducing the lateral displacement of the electrode sheet on the rubber frame 920, so as to improve the positioning accuracy of the electrode sheet and the rubber frame 920, thereby indirectly improving the molding effect of the rubber frame 920 on the electrode sheet, which is beneficial to improving the production quality of solid-state batteries.

[0071] It should be noted that the negative pressure component can be a pressure-changing device such as a pump body or an exhaust fan.

[0072] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it can be understood that in order to improve the accuracy of positioning the rubber frame 920 and the electrode sheet, so as to improve the molding effect of the rubber frame 920 on the electrode sheet, the electrode sheet manufacturing equipment also includes a visual recognition component, which can identify the position of the rubber frame 920. The transfer mechanism 400 is configured to transfer the electrode sheet to the upper end of the rubber frame 920 according to the position of the rubber frame 920 identified by the visual recognition component.

[0073] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the electrode manufacturing equipment facilitates more accurate transfer of the electrode sheet to the upper end of the plastic frame 920 through the cooperation of the visual recognition component and the transfer mechanism 400, so as to improve the positioning effect of the electrode sheet and the plastic frame 920, thereby improving the molding effect of the plastic frame 920 on the electrode sheet.

[0074] Reference Figure 1 、 Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the visual recognition component identifies the position of the rubber frame 920 on the material strip film 231, and the transfer mechanism 400 places the electrode sheet to the upper end of the rubber frame 920 on the material strip film 231, so that the electrode sheet can be aligned and matched with the rubber frame 920, ensuring the pressing effect of the electrode sheet and the rubber frame 920.

[0075] It should be understood that in some other embodiments, the visual recognition component can also identify the position of the rubber frame 920 by means of cursor recognition, such as printing an identification cursor at the same time as the rubber frame 920 is printed, and the transfer mechanism 400 locates the position of the rubber frame 920 through the visual recognition component, thereby accurately placing the electrode sheet on the upper end of the rubber frame 920.

[0076] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it can be understood that in this embodiment, the electrode manufacturing equipment also includes a correction platform and a camera detection unit, and two transfer mechanisms 400 are provided. The two transfer mechanisms 400 are respectively a first transfer mechanism and a second transfer mechanism. The first transfer mechanism is used to transfer the electrode sheet to the correction platform, and the second transfer mechanism is used to transfer the electrode sheet from the correction platform to the upper end of the rubber frame 920.

[0077] The correction platform includes a detection platform, a first transverse actuator, and a second transverse actuator. The detection platform is used to support the electrode sheet. A camera detection unit is located above the correction platform to detect whether the electrode sheet's appearance is acceptable and whether it is offset. The first transverse actuator is in transmission connection with the detection platform to drive the detection platform forward and backward, while the second transverse actuator is in transmission connection with the detection platform to drive the detection platform left and right.

[0078] When the camera detection unit detects that the position of the electrode sheet is offset compared to the preset position, the first horizontal driver and the second horizontal driver can drive the detection platform to move, so that the electrode sheet located on the detection platform moves to the preset position, and then the second transfer mechanism transfers the electrode sheet from the preset position to the upper end of the rubber frame 920, which is beneficial to improve the positioning accuracy of the electrode sheet and the rubber frame 920.

[0079] It should be noted that the detection principle and structure of the camera detection unit belong to conventional technical means in this field and will not be described in detail here. The first transverse drive and the second transverse drive can be linear drive devices such as air cylinders, oil cylinders, and linear modules.

[0080] Reference Figure 1 、 Figure 4 and Figure 5 As shown, it can be understood that, considering that the positive electrode sheets 930 and the negative electrode sheets 910 in the solid-state battery are both arranged in multiple layers, and the positive electrode sheets 930 and the negative electrode sheets 910 are arranged in an alternating and stacked manner, the electrode sheet manufacturing equipment also includes an electrode sheet conveying mechanism 800 and a flipping mechanism 700.

[0081] Reference Figure 1 、 Figure 4 and Figure 5 As shown, the workbench 100, the composite film conveying mechanism 200, the peeling mechanism 300, the transfer mechanism 400 and the transfer mechanism 500 together constitute a transfer device, two transfer devices are provided, and the flipping mechanism 700 is provided between the two transfer devices. The flipping mechanism 700 is used to flip the electrode sheet, and the electrode sheet conveying mechanism 800 is used to convey the electrode sheet between the flipping mechanism 700 and the transfer device.

[0082] Reference Figure 1 、 Figure 4 and Figure 5As shown, the flipping mechanism 700 is used to flip the electrode sheet, and the electrode sheet conveying mechanism 800 is used to convey the electrode sheet between the flipping mechanism 700 and the transfer device, one of the transfer devices can realize the transfer processing of the rubber frame 920 on one end face of the electrode sheet, so that the rubber frame 920 is formed on one end face of the electrode sheet. Under the conveying action of the electrode sheet conveying mechanism 800, the electrode sheet with the rubber frame 920 formed on one end is conveyed to the flipping mechanism 700, and the flipping mechanism 700 is used to flip the electrode sheet. Under the conveying action of the electrode sheet conveying mechanism 800, the flipped electrode sheet is conveyed to another transfer device for transfer processing of the rubber frame 920, so that the other end face of the electrode sheet is also formed with a rubber frame 920, that is, two rubber frames 920 are formed on both end faces of the electrode sheet.

[0083] In the lamination step of alternating the stacking of multiple positive electrode sheets 930 and negative electrode sheets 910, the two ends of the electrode sheet are respectively connected to the two positive electrode sheets 930 or the two negative electrode sheets 910, and are embedded. The rubber frame 920 formed on the electrode sheet can be embedded with the solid electrolyte membrane, and the positive electrode sheet 930 or the negative electrode sheet 910, which is beneficial to limit the lateral displacement of the solid electrolyte membrane relative to the positive electrode sheet 930 or the negative electrode sheet 910, so as to improve the bonding effect between the solid electrolyte membrane and the positive electrode sheet 930 and the negative electrode sheet 910.

[0084] It should be noted that the electrode sheet conveying mechanism 800 and the transfer mechanism 400 may include a connecting member, a front and rear linear drive device and a lifting linear drive device. The connecting member has a suction cup or a clamp. The suction cup adsorbs the electrode sheet or the clamp clamps the electrode sheet, so that the connecting member and the electrode sheet can be detachably connected. The front and rear linear drive devices and the lifting linear drive are all cylinders, oil cylinders, linear modules, screw slider mechanisms, etc. The front and rear linear drive devices can drive the connecting member to move forward and backward, and the lifting linear drive device can drive the connecting member to move up and down, thereby realizing the conveyance of the electrode sheet.

[0085] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it can be understood that, specifically, the flipping mechanism 700 includes a second rotary drive and a manipulator. Under the conveying action of the electrode sheet conveying mechanism 800, the electrode sheet is conveyed to the flipping mechanism 700. The manipulator has a suction cup or a clamp. The suction cup adsorbs the electrode sheet or the clamp grasps the electrode sheet, so as to realize a detachable connection between the manipulator and the electrode sheet. The second rotary drive is connected to the manipulator to drive the manipulator to flip, so as to realize the flipping operation of the electrode sheet.

[0086] The flipping mechanism 700 further includes an up-and-down driving device, which is connected to the second rotary driver to drive the second rotary driver to move up and down, thereby providing space for flipping the electrode sheet.

[0087] It should be noted that the upper and lower driving devices can be linear driving devices such as air cylinders, oil cylinders, linear modules, etc., and the second rotation driver can be a forward and reverse motor.

[0088] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it is understandable that, considering that the molding effect of the rubber frame 920 on the electrode sheet will affect the production quality of the solid-state battery, the electrode sheet manufacturing equipment also includes a detection component and a rejection component.

[0089] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the detection component and the transfer mechanism 500 are arranged in front and back, that is, the detection component and the transfer mechanism 500 are arranged in sequence along the conveying direction of the material film 231. The detection component can be used to detect the electrode sheet with the glue frame 920 attached to it, so as to detect the molding effect of the glue frame 920 on the electrode sheet. The rejection component is used to reject the electrode sheet that fails the inspection.

[0090] Reference Figure 1 、 Figure 2 and Figure 4 As shown, specifically, the detection component can be a camera module, which takes a picture of the electrode sheet through the camera module, and compares the photographed pattern with the set pattern to determine whether the molding effect of the rubber frame 920 on the electrode sheet is qualified. If the deviation value is less than the first set threshold, the corresponding electrode sheet is determined to be qualified. If the deviation value is greater than or equal to the second set threshold, the corresponding electrode sheet is determined to be unqualified.

[0091] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the rejection component can be a multi-axis robot. When the inspection component determines that a specified electrode sheet is unqualified, the rejection component can reject the unqualified electrode sheet. In other words, the electrode sheet manufacturing equipment also has an inspection function, which helps reduce the risk of solid-state battery quality problems caused by poor molding of the plastic frame 920, and helps improve the production quality of the electrode sheet.

[0092] It should be noted that the detection principle and structure of the detection component belong to the existing technology and will not be described in detail here.

[0093] Reference Figure 1 、 Figure 2 and Figure 4 As shown, it is understandable that, considering that the curing speed of the glue frame 920 will affect the production efficiency of the electrode, the electrode manufacturing equipment also includes a colloid curing component 600, and the colloid curing component 600 is located in front of the transfer mechanism 500, that is, the colloid curing component 600 and the transfer mechanism 500 are arranged in sequence along the conveying direction of the material strip film 231.

[0094] Reference Figure 1 、 Figure 2 and Figure 4 As shown, after the glue frame 920 is transferred to the electrode sheet, the colloid curing component 600 is used to accelerate the curing of the glue frame 920 on the electrode sheet, that is, shorten the curing time of the glue frame 920 and reduce the waiting time for the curing of the glue frame 920, which is beneficial to improving the production efficiency of the electrode sheet of the solid-state battery.

[0095] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the colloid curing component 600 includes a heating unit, which is used to provide heat to the glue frame 920 on the electrode sheet. That is, the colloid curing component 600 increases the curing speed of the glue frame 920 on the electrode sheet by heating and drying, which is beneficial to reducing the waiting time for curing of the glue frame 920 and improving the electrode production efficiency of the solid-state battery.

[0096] It should be understood that in some other embodiments, the colloid curing assembly 600 also includes a fan, and the air outlet of the fan is set toward the electrode sheet to which the glue frame 920 is attached. The operation of the fan is helpful to speed up the air flow speed around the electrode sheet, so as to accelerate the curing speed of the glue frame 920 located on the electrode sheet, which is helpful to reduce the waiting time for the curing of the glue frame 920 and improve the electrode production efficiency of the solid-state battery.

[0097] It should be understood that in some other embodiments, for light-sensitive glue, the colloid curing component 600 may include a specific light source, which accelerates the curing of the colloid through irradiation with the specific light source, thereby reducing the waiting time for the glue frame 920 to cure and improving the production efficiency of the electrode of the solid-state battery.

[0098] An embodiment of the present invention provides a solid-state battery production line, including an electrode sheet manufacturing device as shown in any of the above embodiments, wherein the electrode sheet is one of the positive electrode sheet 930 and the negative electrode sheet 910; a stacking device for stacking the other of the positive electrode sheet 930 and the negative electrode sheet 910, the solid electrolyte membrane and the electrode sheet in sequence, and embedding the other of the positive electrode sheet 930 and the negative electrode sheet 910 in the rubber frame 920.

[0099] The solid-state battery production line includes an electrode manufacturing device as described in any one of the first aspects, wherein the composite film conveying mechanism 200 is used to continuously convey the composite film 230 along a set direction, and the composite film 230 includes an isolation film 232, a glue frame layer and a material film 231 stacked in sequence, and the glue frame layer includes a plurality of glue frames 920 arranged along the extension direction of the material film 231, that is, the glue frame layer is arranged between the isolation film 232 and the material film 231, and the peeling mechanism 300 is used to peel off the isolation film 232 from the composite film 230, thereby exposing the glue frame layer, and the composite film conveying mechanism 200 can convey the glue frame layer and the material film 231 to the top of the workbench 100, and the transfer mechanism 400 is used to transfer the electrode sheet to the top of the exposed glue frame 920, and the transfer mechanism 500 is arranged above the workbench 100, and is used to press the electrode sheet and the glue frame 920 so that the glue frame 920 and the electrode sheet are pressed together. 910 , the other end of the positive electrode sheet 930 and the other end of the negative electrode sheet 910 are stacked in the glue frame 920. The glue frame 920 is preferably used for bonding the positive electrode sheet 930 to the negative electrode sheet 910. The glue frame 920 is preferably used for bonding the positive electrode sheet 930 to the negative electrode sheet 910.

[0100] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Pole piece manufacturing equipment, characterized in that: include: Workbench(100); A composite film conveying mechanism (200) is used to convey a composite film (230) along a set direction, wherein the composite film (230) comprises an isolation film (232), a glue frame layer, and a material film (231) stacked in sequence, wherein the glue frame layer comprises a plurality of glue frames (920) arranged along an extension direction of the material film (231); A peeling mechanism (300) is used to peel off the isolation film (232) from the composite film (230) to expose the glue frame layer, and the composite film conveying mechanism (200) is capable of conveying the glue frame layer and the material film (231) to the top of the workbench (100); A transfer mechanism (400) is used to transfer the electrode sheet to the upper end of the exposed plastic frame (920); The transfer mechanism (500) is arranged above the workbench (100) and is used to press the electrode sheet and the plastic frame (920) together so that the plastic frame (920) is connected to the surface of the electrode sheet.

2. The pole piece manufacturing equipment according to claim 1, characterized in that: The composite film conveying mechanism (200) includes a unwinding roller (210), a first winding roller (220) and a first rotary driver, wherein the first rotary driver is in transmission connection with the unwinding roller (210) and the first winding roller (220) to drive the unwinding roller (210) and the first winding roller (220) to rotate, wherein the unwinding roller (210) is used to unwind the composite film (230), and the first winding roller (220) is used to wind the material strip film (231) so that the material strip film (231) is peeled off from the electrode sheet bonded with the rubber frame (920).

3. The pole piece manufacturing equipment according to claim 2, characterized in that: The peeling mechanism (300) includes a second winding roller (310), the first rotary driver is in transmission connection with the second winding roller (310) to drive the second winding roller (310) to rotate, and the second winding roller (310) is used to wind up the isolation film (232).

4. The pole piece manufacturing equipment according to claim 1, characterized in that: The transfer mechanism (500) comprises a linear drive and a pressing plate (120), wherein the linear drive is in transmission connection with the pressing plate (120) to drive the pressing plate (120) to move closer to or farther from the workbench (100); and / or, The transfer mechanism (500) further comprises a heater, and the heater is used to supply heat to the glue frame (920).

5. The pole piece manufacturing equipment according to claim 1, characterized in that: It also includes a negative pressure component, which is arranged below the top surface of the workbench (100). The material strip film (231) is provided with multiple air holes. The negative pressure component can generate negative pressure to absorb the electrode sheet stacked on the plastic frame (920) from top to bottom, so that the electrode sheet, the plastic frame (920), the material strip film (231) and the top surface of the workbench (100) are sequentially attached.

6. The pole piece manufacturing equipment according to claim 1, characterized in that: It also includes a colloid curing component (600), and the colloid curing component (600) is used to accelerate the curing of the colloid frame (920) located on the electrode sheet.

7. The pole piece manufacturing equipment according to claim 1, characterized in that: It also includes a visual recognition component, which can identify the position of the plastic frame (920), and the transfer mechanism (400) is configured to transfer the electrode sheet to the upper end of the plastic frame (920) according to the position of the plastic frame (920) identified by the visual recognition component.

8. The pole piece manufacturing equipment according to any one of claims 1 to 7, characterized in that: The invention also includes a flipping mechanism (700) and an electrode sheet conveying mechanism (800). The workbench (100), the composite film conveying mechanism (200), the peeling mechanism (300), the transfer mechanism (400) and the transfer mechanism (500) together constitute a transfer device. Two transfer devices are provided. The flipping mechanism (700) is provided between the two transfer devices. The flipping mechanism (700) is used to flip the electrode sheet. The electrode sheet conveying mechanism (800) is used to convey the electrode sheet between the flipping mechanism (700) and the transfer device.

9. The pole piece manufacturing equipment according to claim 8, characterized in that: The flipping mechanism (700) comprises a second rotary driver and a manipulator, wherein the manipulator has a suction cup or a clamping claw, and the manipulator is used for being detachably connected to the electrode sheet, and the second rotary driver is in transmission connection with the manipulator to drive the manipulator to flip.

10. Solid-state battery production line, characterized in that, include: The electrode sheet manufacturing device according to any one of claims 1 to 9, wherein the electrode sheet is one of a positive electrode sheet (930) and a negative electrode sheet (910); The lamination device is used to sequentially laminate the positive electrode sheet (930) and the other of the negative electrode sheet (910), the solid electrolyte membrane and the electrode sheet, and to embed the positive electrode sheet (930) and the other of the negative electrode sheet (910) in the rubber frame (920).

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