Pole piece guiding and conveying equipment and solid-state battery production line

Abstract

The utility model discloses pole piece guiding and conveying equipment and a solid-state battery production line, and relates to the technical field of solid-state battery manufacturing. The pole piece guiding and conveying equipment comprises a material belt film conveying unit which is configured to be capable of conveying a material belt film used for supporting a pole piece, and a pole piece feeding station, a rubber frame manufacturing station and a pole piece discharging station are sequentially arranged along the conveying path of the material belt film; and the pressing and clamping guide unit comprises a clamping mechanism and a linear driving mechanism, the clamping mechanism is configured to be capable of pressing and clamping the material belt film, and the linear driving mechanism is configured to be capable of driving the clamping mechanism to linearly move in a reciprocating mode and conveying the material belt film in the direction from the pole piece feeding station to the rubber frame manufacturing station. According to the utility model, the pole piece can be accurately conveyed, and the rubber frame and the pole piece can be accurately laminated, so that the forming effect of the rubber frame on the pole piece is improved.

Description

Technical Field

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

[0002] Solid-state batteries have higher energy density than liquid batteries and are therefore considered a new type of battery that can replace liquid batteries and be widely used. Currently, the production process of solid-state batteries is not mature. When the solid electrolyte membrane and the electrode membrane are improved by isostatic pressing, the solid electrolyte membrane and the electrode membrane are prone to relative offset. In addition, the anode and cathode membranes are prone to bending at the edges and contacting, resulting in short circuits.

[0003] Based on this, it is necessary to coat the pole piece with a layer of plastic frame arranged around the solid electrolyte to improve the adhesion between the pole pieces and avoid the problems of offset between the solid electrolyte membrane and the electrode membrane, as well as bending and short circuiting of the anode membrane and the cathode membrane. However, during the process of coating the plastic frame on the pole piece, since the pole piece is prone to offset during transportation, the plastic frame formed on the pole piece is prone to positional offset, resulting in poor plastic frame molding effect, and thus reducing the quality of the solid-state battery cell. 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 guiding and conveying device and a solid-state battery production line that can accurately convey pole pieces and ensure that the plastic frame and pole piece are accurately superimposed, thereby improving the molding effect of the plastic frame on the pole piece.

[0005] The first embodiment of the present invention provides a pole piece guiding and conveying device, which includes:

[0006] A strip film conveying unit is configured to convey the strip film used to support the electrode, and a pole piece loading station, a plastic frame manufacturing station and a pole piece unloading station are sequentially arranged along the strip film conveying path;

[0007] The clamping guide unit includes a clamping mechanism and a linear drive mechanism. The clamping mechanism is configured to clamp the material strip film, and the linear drive mechanism is configured to drive the clamping mechanism to move back and forth linearly and transport the material strip film in the direction from the pole piece loading station to the rubber frame manufacturing station.

[0008] The electrode guiding and conveying equipment according to the first embodiment of the present invention has at least the following beneficial effects: the material strip film is conveyed by the material strip film conveying unit, and the material strip film is used as a transport carrier for the electrode, so that the material strip film can convey the electrode from the electrode loading station to the frame manufacturing station and the electrode unloading station in sequence; during the conveying of the electrode, the clamping mechanism in the clamping guide unit is used to apply a stable clamping and fixing effect to the material strip film, and the linear driving mechanism in the clamping guide unit is used to drive the clamping mechanism to move linearly, so that the clamping mechanism can drive the material strip film and the electrode thereon to move a certain distance, ensuring that the electrode on the material strip film can be accurately moved to the frame manufacturing station, so that the frame can be accurately overlapped with the electrode, thereby improving the molding effect of the frame, and avoiding the problem of low manufacturing precision of the frame due to positional displacement of the electrode during the conveying process, which causes the position of the formed frame to be offset.

[0009] In some embodiments of the present invention, the clamping mechanism includes a fixed block, a pressing block and a linear drive member, the fixed block is connected to the output end of the linear drive mechanism, the pressing block and the fixed block jointly form a guide hole for the material strip film to pass through, the output end of the linear drive member is connected to the pressing block, and the linear drive member is configured to drive the pressing block to move relative to the fixed block to clamp the material strip film.

[0010] In some embodiments of the present invention, the material strip film has a bearing surface with a width greater than the width of the electrode; and / or, the electrode guiding and conveying equipment also includes a vacuum adsorption platform, which extends from the electrode loading station to the electrode unloading station, and the vacuum adsorption platform is provided with a plurality of first adsorption holes, and the material strip film is provided with a plurality of second adsorption holes, and the vacuum adsorption platform is configured to be able to vacuum adsorb the material strip film and the electrode on the material strip film.

[0011] In some embodiments of the present invention, the material strip film conveying unit includes a first unwinding mechanism and a first winding mechanism, the first unwinding mechanism is configured to unwind the material strip film, and the first winding mechanism is configured to wind the material strip film.

[0012] In some embodiments of the present invention, the material strip film conveying unit also includes a second winding mechanism, a plurality of plastic frames are formed on the surface of the material strip film, and the plurality of plastic frames are spaced apart along the extension direction of the material strip film, and the material strip film is covered with release paper for covering the plurality of plastic frames. The second winding mechanism is configured to peel off and wind up the release paper from the material strip film so that the plastic frame is exposed and can be transferred to the electrode at the plastic frame manufacturing station.

[0013] In some embodiments of the present invention, a visual inspection mechanism is provided above the electrode loading station, and the visual inspection mechanism is configured to obtain position data of the rubber frame and / or the electrode, and the clamping guide unit is configured to transport the material strip film according to the position data to adjust the position of the electrode at the rubber frame manufacturing station.

[0014] In some embodiments of the present invention, the electrode guiding and conveying equipment also includes a cutting mechanism, a second unwinding mechanism, a vacuum belt conveying mechanism and a transfer robot. The second unwinding mechanism is configured to unwind the electrode material strip and convey it to the cutting mechanism. The cutting mechanism is configured to cut the electrode material strip into several electrode pieces. The vacuum belt conveying mechanism is configured to convey the cut electrode pieces in the direction of the electrode loading station. The transfer robot is configured to transfer the electrode pieces from the vacuum belt conveying mechanism to the electrode loading station.

[0015] In some embodiments of the present invention, the electrode guiding and conveying device further includes a rubber frame transfer mechanism, which is configured to transfer the rubber frame from the material strip film to the electrode located at the rubber frame manufacturing station.

[0016] In some embodiments of the present invention, there are two of the pressing and clamping guide units and two of the material strip film conveying units, and the pressing and clamping guide units and the material strip film conveying units are arranged in a one-to-one correspondence, and the rubber frame transfer mechanism is configured to press the rubber frames on the two material strip films onto the two opposite surfaces of the electrode located at the rubber frame manufacturing station.

[0017] A second embodiment of the present invention provides a solid-state battery production line, which includes the pole piece guiding and conveying equipment as described in the first embodiment.

[0018] The solid-state battery production line according to the embodiment of the second aspect of the present utility model has at least the following beneficial effects: by adopting the electrode guiding and conveying equipment of the above structure, it can ensure the accuracy of the relative position between the electrode and the rubber frame when the electrode and the rubber frame are superimposed, improve the molding effect of the rubber frame on the electrode, and thus improve the manufacturing quality of the solid-state battery.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the electrode guide conveying device provided according to an embodiment of the utility model;

[0021] Figure 2 This is a front view of the electrode guide conveying device provided according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the clamping guide unit provided according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of a vacuum belt conveyor mechanism provided according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a strip film provided according to an embodiment of the present utility model;

[0025] Figure 6 It is a structural schematic diagram of a solid-state battery cell provided according to an embodiment of the present utility model.

[0026] Figure numerals: 100, sheet electrode; 101, negative electrode; 102, positive electrode; 110, rubber frame; 200, material strip film; 201, second adsorption hole; 300, clamping guide unit; 310, linear drive mechanism; 320, translation seat; 330, fixed block; 340, pressure block; 350, linear drive member; 400, guide roller; 510, first unwinding mechanism; 520, second rewinding mechanism; 530, first rewinding mechanism; 610, rubber frame transfer mechanism; 620, vacuum adsorption platform; 710, cutting mechanism; 720, vacuum belt conveyor mechanism; 721, conveyor belt; 722, adsorption air hole; 723, driven roller; 724, driving roller; 725, support; 800, second unwinding mechanism. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. 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.

[0028] In the description of the present invention, it should be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Traditional liquid lithium-ion batteries use a separator, a liquid electrolyte, and a traditional anode such as graphite or silicon. Solid-state batteries, on the other hand, use a solid electrolyte and a lithium metal anode, the energy density of which is higher than that of traditional anodes. Compared to liquid batteries, solid-state batteries can store more energy in the same volume. Therefore, solid-state batteries are seen as a new type of battery that can replace liquid batteries and gain widespread application.

[0031] However, existing solid-state battery production processes are still immature. Compared to liquid electrolytes in liquid batteries, which can fully contact the electrode membrane, the solid electrolyte membrane in solid-state batteries is difficult to tightly bond with the electrode membrane, resulting in poor quality of solid-state batteries. To address this, isostatic pressing equipment can be added to perform isostatic pressing on the solid electrolyte membrane and electrode membrane, promoting a tighter bond and connection between the solid electrolyte membrane and the electrode membrane, which is beneficial to improving the quality of solid-state batteries.

[0032] However, during the isostatic pressing process, the relative position between the solid electrolyte membrane and the electrode membrane is easily shifted due to the lateral force in the isostatic pressing container, affecting the connection effect between the solid electrolyte membrane and the electrode membrane, resulting in reduced manufacturing quality of the solid-state battery; in addition, during the isostatic pressing process or during the stacking of the pole pieces, the edges of the anode membrane and the cathode membrane are easily bent and contacted due to the compression, resulting in a short circuit problem.

[0033] Based on this problem, it is necessary to cover the surface of the electrode with a layer of rubber frame arranged around the solid electrolyte to improve the bonding connection effect between the electrode pieces, thereby avoiding the problem of offset between the solid electrolyte membrane and the electrode membrane and bending contact between the electrode pieces.

[0034] like Figure 6As shown, the surface of the negative electrode sheet 101 is bonded with a solid electrolyte membrane. Since the solid electrolyte membrane is square when viewed from top to bottom, the plastic frame 110 is usually in the shape of a square ring. Moreover, the plastic frame 110 is arranged around the circumference of the negative electrode sheet 101 and encloses the solid electrolyte membrane. The plastic frame 110 and the surface of the negative electrode sheet 101 are fixedly connected by bonding. The plastic frame 110 exerts a good limiting effect on the solid electrolyte membrane to prevent the solid electrolyte membrane and the electrode membrane from easily shifting. During the lamination process, the positive electrode sheet 102 and the negative electrode sheet 101 are stacked layer by layer in the top to bottom direction, and the inner edge of the plastic frame 110 is bonded to the outer edge of the positive electrode sheet 102. The positive electrode sheet 102 and the negative electrode sheet 101 are cross-stacked to form a solid-state battery cell. At this time, the positive electrode sheet 102 is located in the area formed by the two negative electrode sheets 101 and the two plastic frames 110.

[0035] However, in the process of coating the surface of the electrode with a glue frame, it is easy for the electrode to shift in position during transportation, resulting in the glue frame formed on the electrode shifting in position, thereby causing the molding effect of the glue frame 110 on the electrode to be reduced, thereby seriously affecting the manufacturing quality of the solid-state battery cell.

[0036] Based on the above problems, the utility model provides a pole piece guiding and conveying equipment and a solid-state battery production line, which can accurately convey the pole pieces, ensure that the relative position between the rubber frame and the pole piece meets the set requirements, and enable the rubber frame and the pole piece to be accurately overlapped, thereby improving the molding effect of the rubber frame on the pole piece and ensuring the good quality of the solid-state battery produced.

[0037] Reference below Figures 1 to 6 The present invention describes a pole piece guiding and conveying device and a solid-state battery production line provided according to an embodiment of the present invention.

[0038] like Figures 1 to 6 As shown, the electrode guide conveying device according to the embodiment of the first aspect of the present utility model can be applied to the rubber frame transfer device, can complete the accurate conveying of the electrode, and allow the rubber frame transfer device to manufacture the rubber frame 110 on the surface of the electrode. Moreover, the relative position between the rubber frame 110 and the electrode is accurate, thereby improving the molding effect of the rubber frame 110 on the electrode.

[0039] The electrode guide conveying device has a first direction, a second direction and an up-down direction, wherein the first direction is perpendicular to the second direction and the up-down direction respectively, and the second direction is perpendicular to the up-down direction. In this embodiment, it is assumed that the first direction is the left-right direction and the second direction is the front-back direction.

[0040] The electrode guiding and conveying equipment includes a strip film conveying unit and a clamping and guiding unit 300 .

[0041] The strip film conveying unit is configured to convey the strip film 200 used to support the electrode. Furthermore, a electrode loading station, a mold frame manufacturing station, and a electrode unloading station are sequentially arranged along the conveying path of the strip film 200. In this embodiment, the electrode loading station is located to the right of the mold frame manufacturing station, and the electrode unloading station is located to the left of the mold frame manufacturing station. The strip film conveying unit conveys the strip film 200 from right to left.

[0042] It is understood that the strip film 200 can be, but is not limited to, a PET film, a PC film, or a PVC film. When the electrode is placed on the upper surface of the strip film 200, the electrode can move along with the strip film 200. When the electrode moves from the electrode loading station to the plastic frame manufacturing station, the plastic frame transfer equipment produces a plastic frame 110 on the upper surface of the electrode by screen printing, hot pressing transfer, or gluing. When the electrode moves from the plastic frame manufacturing station to the electrode unloading station, the electrode unloading work can be completed by manual or robotic material removal. At this point, a solid electrolyte is formed on the surface of the electrode.

[0043] Specifically, the structure of the strip film conveying unit includes a first unwinding mechanism 510 and a first rewinding mechanism 530. The first unwinding mechanism 510 is configured to unwind the strip film 200, and the first rewinding mechanism 530 is configured to rewind the strip film 200. In this embodiment, the first unwinding mechanism 510 is located to the right of the first rewinding mechanism 530.

[0044] It is understood that the first unwinding mechanism 510 can be an existing unwinder, and the first rewinding mechanism 530 can be an existing rewinder. Multiple guide rollers 400 are arranged along the conveying path of the strip film 200 to change the direction of movement of the strip film 200 and maintain a certain tension on the strip film 200. Furthermore, a strip buffer mechanism can be provided to ensure that the unwinding speed of the strip film 200, the manufacturing speed of the plastic frame 110, and the rewinding speed of the strip film 200 are coordinated and do not interfere with each other.

[0045] The clamping and guiding unit 300 is used to clamp and secure the film strip 200 and accurately transport the electrode on the film strip 200 to the frame manufacturing station. The clamping and guiding unit 300 comprises a clamping mechanism and a linear drive mechanism 310. The clamping mechanism is configured to clamp the film strip 200, while the linear drive mechanism 310 is configured to drive the clamping mechanism in reciprocating linear motion, transporting the film strip 200 from the electrode loading station to the frame manufacturing station.

[0046] It is understood that the linear drive mechanism 310 can be, but is not limited to, a linear module or an electric cylinder. Since the strip film 200 is conveyed only by the winding action of the first winding mechanism 530, the electrode piece cannot be accurately moved to the plastic frame manufacturing station, resulting in low molding precision of the plastic frame 110 on the electrode piece. Therefore, in this embodiment, a clamping mechanism applies a certain pressure clamping action to the strip film 200, so that the strip film 200 is fixed relative to the clamping mechanism. Then, the clamping mechanism is driven by the linear drive mechanism 310 to move linearly. Moreover, the distance of linear movement is controllable. Therefore, the clamping mechanism can move the strip film 200 and the electrode piece on the strip film 200 together, so that the electrode piece can be accurately moved from the electrode piece loading station to the plastic frame manufacturing station, ensuring that the relative position between the electrode piece and the plastic frame 110 meets the set position requirements, thereby facilitating the improvement of the molding precision of the plastic frame 110 on the electrode piece.

[0047] Specifically, if Figure 3 As shown, the clamping mechanism includes a fixed block 330, a pressure block 340, and a linear drive member 350. The fixed block 330 is fixedly connected to the output end of the linear drive mechanism 310. A guide hole is formed between the pressure block 340 and the fixed block 330 for the feed film 200 to pass through. The output end of the linear drive member 350 is fixedly connected to the pressure block 340. Furthermore, the linear drive member 350 is configured to drive the pressure block 340 to move relative to the fixed block 330 to clamp the feed film 200. The linear drive member 350 may be, but is not limited to, an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0048] In this embodiment, a translation seat 320 is provided at the output end of the linear drive mechanism 310. The fixed block 330 is in the shape of a square ring and is fixedly connected to the upper surface of the translation seat 320. The fixed block 330 has a square through-hole. The linear drive member 350 is a telescopic cylinder, which is fixedly connected to the fixed block 330. The pressure block 340 is located above the telescopic cylinder and is fixedly connected to the movable rod of the telescopic cylinder. The telescopic cylinder and the pressure block 340 are both arranged in the square through-hole of the fixed block 330. A guide hole is formed between the upper surface of the pressure block 340 and the fixed block 330. The guide hole is a square hole. The width direction of the strip film 200 is consistent with the width direction of the guide hole. The width dimension of the strip film 200 can be equal to or less than the width dimension of the guide hole.

[0049] When the telescopic cylinder drives the pressure block 340 upward, the size of the guide hole becomes smaller, and the pressure block 340 can apply a clamping effect to the strip film 200 in the guide hole; when the telescopic cylinder drives the pressure block 340 downward, the size of the guide hole becomes larger, and the pressure block 340 releases the clamping effect on the strip film 200 in the guide hole. Then, the strip film 200 can move relative to the clamping mechanism along the extension direction of the guide hole. Therefore, when the electrode completes the plastic frame manufacturing process, the clamping mechanism will release the clamping and fixing effect on the strip film 200 and will move in the opposite direction under the drive of the linear drive mechanism 310; then, the clamping mechanism will re-apply the clamping and fixing effect to the strip film 200 and drag the strip film 200 to move a certain distance, prompting the strip film 200 to accurately transport the electrode to the plastic frame manufacturing station.

[0050] Of course, it is not excluded that in other embodiments, the pressing block 340 is located above the fixing block 330 and defines a guide hole together with the fixing block 330 .

[0051] It can be understood that, depending on the layout of the electrode guide and conveying equipment, the clamping guide unit 300 can be installed horizontally so that the linear drive mechanism 310 can drive the clamping mechanism to move in the first direction, or the clamping guide unit 300 can be installed vertically so that the linear drive mechanism 310 can drive the clamping mechanism to move in the up and down directions.

[0052] In some examples, the clamping guide unit 300 is arranged between the electrode unloading station and the rubber frame manufacturing station. Therefore, before the electrode is unloaded, the material strip film 200 will be separated from the electrode, and the material strip film 200 will be clamped and conveyed by the clamping guide unit 300, and at the same time, it will be wound up by the first winding mechanism 530. At this time, the electrode will fall on the support seat after leaving the material strip film 200, so that it can be unloaded manually or automatically.

[0053] In other examples, the clamping guide unit 300 is arranged on the side of the electrode unloading station away from the rubber frame manufacturing station. Therefore, the electrode with the rubber frame 110 can be removed from the material strip film 200 manually or by a robot. At this time, the material strip film 200 continues to move along its conveying path; then, the material strip film 200 moves toward the first winding mechanism 530 under the clamping and conveying action of the clamping guide unit 300, and is finally wound up by the first winding mechanism 530.

[0054] In the electrode guiding and conveying device provided by the embodiment of the first aspect of the present invention, the material strip film 200 is conveyed by the material strip film conveying unit, and the material strip film 200 is used as a conveying carrier for the electrode, so that the material strip film 200 provides support for the electrode, so that the material strip film 200 can convey the electrode from the electrode loading station to the plastic frame manufacturing station and the electrode unloading station in sequence; during the conveying work of the electrode, the pressing and clamping guide unit 300 is activated, so that the clamping mechanism applies a stable pressing and clamping fixing effect to the material strip film 200, and the linear drive The driving mechanism 310 drives the clamping mechanism to move linearly, so that the clamping mechanism can drive the material strip film 200 and the electrode thereon to move a certain distance, ensuring that the electrode on the material strip film 200 can be accurately moved to the rubber frame manufacturing station, so that the rubber frame 110 can be accurately laminated with the electrode, thereby improving the molding effect of the rubber frame 110 and avoiding the problem of low manufacturing precision of the rubber frame 110 caused by the position deviation of the electrode during the transportation process.

[0055] In some embodiments, the strip film 200 has a bearing surface with a width greater than the width of the electrode. It is understood that the width of the strip film 200 is greater than the width of the electrode. Then, during the process of applying colloid to the electrode to manufacture the glue frame 110, the strip film 200 can receive the colloid overflowing from the electrode, preventing the colloid from overflowing to the outside of the electrode and causing environmental pollution, such as the surface of the glue coating platform being contaminated and affecting the next electrode. It should be noted that the glue coating platform can provide a certain support to the strip film 200 and the electrode during the colloid coating.

[0056] In some embodiments, as Figure 1 and Figure 2 As shown, the electrode guide and conveying equipment also includes a vacuum adsorption platform 620. The vacuum adsorption platform 620 extends from the electrode loading station to the electrode unloading station. Therefore, the vacuum adsorption platform 620 can provide support and vacuum adsorption to the strip film 200 and the electrode during electrode loading, frame manufacturing, and electrode unloading. Specifically, the vacuum adsorption platform 620 is provided with a plurality of first adsorption holes, and the strip film 200 is provided with a plurality of second adsorption holes 201. The plurality of second adsorption holes 201 are arranged in an array on the strip film 200. The vacuum adsorption platform 620 is configured to be able to vacuum adsorb the strip film 200 and the electrode on the strip film 200.

[0057] It is understood that the vacuum adsorption platform 620 is located below the strip film 200 and the electrode. When the vacuum adsorption platform 620 is in operation, the strip film 200 is adsorbed and fixed to the upper surface of the vacuum adsorption platform 620 by the vacuum adsorption effect of the first adsorption hole. At this time, the first adsorption hole is connected to the second adsorption hole 201, and the electrode is also adsorbed and fixed to the upper surface of the strip film 200 by the negative pressure airflow. Therefore, when the electrode is framed, the strip film 200 and the electrode are fixed relative to the vacuum adsorption platform 620, which can prevent the electrode from shifting and affecting the accuracy of the frame manufacturing.

[0058] In some embodiments, as Figure 1 and Figure 2 As shown, the strip film conveying unit also includes a second winding mechanism 520. The surface of the strip film 200 is formed with a plurality of plastic frames 110, spaced apart along the extension direction of the strip film 200. Furthermore, the strip film 200 is coated with release paper, which serves to cover and protect the plastic frames 110 and prevent adhesion between the inner and outer layers of the strip film 200 and the plastic frames 110 on opposite sides. The second winding mechanism 520 is configured to peel and wind the release paper from the strip film 200, exposing the plastic frames 110 and allowing them to be transferred to the electrode at the plastic frame manufacturing station.

[0059] It is understood that the second winding mechanism 520 is an existing winding machine. When the first unwinding mechanism 510 is running, the second winding mechanism 520 is started at the same time. The second winding mechanism 520 peels off the release paper on the strip film 200, leaving the plastic frame 110 on the strip film 200 in a bare state. At this time, the electrode can be placed down from the electrode loading station on the plastic frame 110 of the strip film 200 by a robot, so that the plastic frame 110 is enclosed along the edge of the electrode; then, when the electrode and the plastic frame 110 move to the plastic frame manufacturing station along with the strip film 200, the electrode and the plastic frame 110 can be pressed together by pressing, so that the electrode and the plastic frame 110 are tightly bonded; finally, under the winding action of the first winding mechanism 530, the strip film 200 and the plastic frame 110 can be separated by a peeling roller, so that the plastic frame 110 is transferred from the strip film 200 to the electrode. In this case, the clamping guide unit 300 is arranged between the rubber frame manufacturing station and the pole piece blanking station.

[0060] In this embodiment, if Figure 1 and Figure 2As shown, the electrode guide and conveying device also includes a plastic frame transfer mechanism 610. The plastic frame transfer mechanism 610 is correspondingly arranged at the plastic frame manufacturing station. The plastic frame transfer mechanism 610 is configured to transfer the plastic frame 110 from the strip film 200 to the electrode located at the plastic frame manufacturing station. Among them, the plastic frame transfer mechanism 610 is an existing pressing mechanism. The plastic frame transfer mechanism 610 is arranged above the vacuum adsorption platform 620. The plastic frame transfer mechanism 610 applies a certain degree of pressing to the electrode and the plastic frame 110 on the strip film 200, so that the plastic frame 110 is formed on the lower surface of the electrode.

[0061] In some embodiments, a visual inspection mechanism is provided above the electrode loading station. The visual inspection mechanism is configured to obtain positional data of the plastic frame 110 and / or the electrode. Furthermore, the clamping guide unit 300 is configured to feed the strip film 200 based on the positional data to adjust the position of the electrode in the plastic frame manufacturing station.

[0062] It is understandable that the visual inspection mechanism can be a camera in an existing visual system, which can collect image data of the rubber frame 110 and / or the pole piece, so that the position information of the rubber frame 110 and / or the pole piece can be obtained before the rubber frame is manufactured. After obtaining the position information of the rubber frame 110, the robot can accurately place the pole piece on the rubber frame 110. At the same time, after obtaining the position information of the rubber frame 110 or the position information of the pole piece, the clamping guide unit 300 can adjust the position of the strip film 200. By dragging the strip film 200 a certain distance, the rubber frame 110 and the pole piece are accurately moved to the rubber frame manufacturing station to ensure that when the rubber frame 110 and the pole piece are laminated, the relative position of the rubber frame 110 and the pole piece is accurate.

[0063] In some embodiments, as Figure 1 、 Figure 2 and Figure 4 As shown, the electrode guiding and conveying equipment further includes a cutting mechanism 710, a second unwinding mechanism 800, a vacuum belt conveying mechanism 720 and a transfer robot.

[0064] Among them, the second unwinding mechanism 800 is configured to unwind the electrode material strip and transport it to the cutting mechanism 710 for cutting the electrode material strip. The second unwinding mechanism 800 is an existing unwinding machine. The cutting mechanism 710 is configured to cut the electrode material strip into a plurality of electrode pieces. The vacuum belt conveyor mechanism 720 is configured to transport the cut electrode pieces toward the electrode loading station. The transfer robot is configured to transfer the electrode pieces from the vacuum belt conveyor mechanism 720 to the electrode loading station.

[0065] In this embodiment, the cutting mechanism 710 is located on the left side of the second unwinding mechanism 800, and the vacuum belt conveyor mechanism 720 is located on the left side of the cutting mechanism 710. When in operation, the cutting mechanism 710 can cut the long electrode sheet material strip released by the second unwinding mechanism 800 through the up-and-down moving cutter, and cut out a plurality of electrode sheets, each of which has a sheet-like structure, and is therefore referred to as a sheet-like electrode sheet 100. Then, the sheet-like electrode sheet 100 falls onto the conveying plane of the vacuum belt conveyor mechanism 720.

[0066] Specifically, if Figure 4 As shown, the vacuum belt conveyor mechanism 720 includes a conveyor belt 721, a driven roller 723, a driving roller 724, and a support 725. Driven rollers 723 are provided on opposite sides of the support 725 in the first direction. The driven rollers 723 are mounted on the support 725 via bearing seats. The driven rollers 723 can rotate relative to the support 725 around a central axis extending in the second direction. The driving roller 724 is provided below the support 725 via a bearing seat. The driving roller 724 can be driven to rotate by a rotating drive member such as a motor. The conveyor belt 721 is wound between the driving roller 724 and the two driven rollers 723. When the driving roller 724 actively rotates, the conveyor belt 721 can operate and transport the sheet-shaped electrode 100 toward the electrode loading station.

[0067] The surface of the conveyor belt 721 is provided with a plurality of adsorption holes 722 arranged in an array. The interior of the support 725 is hollow to form a vacuum cavity. The vacuum cavity is provided with an air flow inlet and an air flow outlet. The air flow outlet is connected to the vacuum equipment through a pipeline. There are multiple air flow inlets, which are located on the upper surface of the support 725. When the conveyor belt 721 is running, the air flow inlet is connected to the adsorption holes 722. The sheet-like electrode 100 is fixed relative to the conveyor belt 721 through the vacuum adsorption effect, so that the conveyor belt 721 can stably transport the sheet-like electrode 100.

[0068] The vacuum adsorption platform 620 and the vacuum belt conveyor mechanism 720 are spaced apart along the second direction. The transfer robot includes a vacuum suction cup and a robotic arm. The vacuum suction cup is fixedly connected to the movable end of the robotic arm. The transfer robot uses the vacuum suction cup to adsorb and fix the sheet electrode 100, causing the sheet electrode 100 to move upward and away from the conveyor belt 721. Then, the transfer robot accurately places the sheet electrode 100 on the strip film 200. Specifically, when the strip film 200 is provided with a plastic frame 110, the sheet electrode 100 is placed on the plastic frame 110.

[0069] In some embodiments, as Figure 1 and Figure 2As shown, there are two clamping guide units 300 and two strip film conveying units, and the clamping guide units 300 and the strip film conveying units are arranged in a one-to-one correspondence. The two clamping guide units 300 are spaced apart in the vertical direction, and the two strip film conveying units are spaced apart in the vertical direction. At the plastic frame manufacturing station, there are strip film 200 and plastic frame 110 on the upper side of the pole piece, and there are also strip film 200 and plastic frame 110 on the lower side of the pole piece. At this time, solid electrolyte is formed on both the upper and lower surfaces of the pole piece, and plastic frame 110 needs to be manufactured on both the upper and lower surfaces of the pole piece.

[0070] The plastic frame transfer mechanism 610 is configured to press the plastic frames 110 on the two strip films 200 onto the opposing surfaces of the electrode at the plastic frame manufacturing station. The plastic frame transfer mechanism 610 is a pressing mechanism, and a gap exists between the plastic frame transfer mechanism 610 and the vacuum adsorption platform 620 to allow the two strip films 200 with plastic frames 110 and the electrode to pass through. When the electrode and the upper and lower plastic frames 110 are moved to the plastic frame manufacturing station, the plastic frame transfer mechanism 610 applies a pressing process to them, bonding the upper and lower plastic frames 110 to the upper and lower surfaces of the electrode, respectively.

[0071] In addition, when a visual inspection mechanism is provided, the position information of the rubber frame 110 located on the lower side of the pole piece and the position information of the rubber frame 110 located on the upper side of the pole piece can be obtained through the visual inspection mechanism before the pole piece is moved to the rubber frame manufacturing station, so as to adjust the position of the material strip film 200 through the corresponding clamping guide unit 300, so that the pole piece can be accurately overlapped with the rubber frames 110 on the upper and lower sides.

[0072] like Figures 1 to 6 As shown, the solid-state battery production line according to the second embodiment of the present utility model includes the pole piece guiding and conveying equipment as in the first embodiment.

[0073] After the transfer of the plastic frame 110 is completed, the positive electrode sheet 102 is stacked on the negative electrode sheet 101 so that the inner edge of the plastic frame 110 is aligned with the outer edge of the positive electrode sheet 102, thereby performing cross-stack, thereby forming a solid-state battery cell. The solid-state battery cell produced by the solid-state battery production line according to the embodiment of the utility model can produce the following effects: during the process of maintaining and pressurizing the solid-state battery cell by the isostatic pressing equipment, the plastic frame 110 located between the solid electrolyte membrane and the electrode membrane can ensure that the solid electrolyte membrane and the electrode membrane will not be offset during the stress process, and can also improve the connection effect between the solid electrolyte membrane and the electrode membrane. In addition, since the width of the negative electrode sheet 101 is greater than the width of the positive electrode sheet 102, the plastic frame 110 can provide a certain support to the negative electrode sheet 101, thereby preventing the negative electrode sheet 101 from bending and contacting during the pressurization process. Moreover, even if the negative electrode sheet 101 bends, it will not cause the edges of the two adjacent negative electrode sheets 101 to contact and short-circuit due to the bending.

[0074] It is understandable that the manufacturing process of solid-state batteries includes multiple processes such as rolling, solid electrolyte manufacturing, electrode cutting, rubber frame manufacturing, and quality inspection, and each process has corresponding processing equipment. This embodiment only provides a unique structural design for the electrode guide and conveying equipment in the solid-state battery production line, and does not propose any improvement requirements for other equipment in the solid-state battery production line. Therefore, those skilled in the art should understand the remaining equipment structure and working principle of the solid-state battery production line, which will not be described in detail here.

[0075] In the solid-state battery production line provided by the embodiment of the second aspect of the present utility model, by adopting the electrode guiding and conveying equipment of the above structure, it is possible to ensure that the relative position between the electrode and the rubber frame 110 is accurate when the electrode and the rubber frame 110 are overlapped, thereby improving the molding effect of the rubber frame 110 on the electrode, thereby improving the manufacturing quality of the solid-state battery.

[0076] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Pole piece guiding and conveying equipment, characterized in that: include: A material strip film conveying unit, configured to convey a material strip film (200) for supporting a pole piece, wherein a pole piece loading station, a plastic frame manufacturing station, and a pole piece unloading station are sequentially provided along a conveying path of the material strip film (200); The clamping guide unit (300) comprises a clamping mechanism and a linear drive mechanism (310), wherein the clamping mechanism is configured to clamp the strip film (200), and the linear drive mechanism (310) is configured to drive the clamping mechanism to move back and forth linearly and transport the strip film (200) in a direction from the electrode loading station to the rubber frame manufacturing station.

2. The electrode guide conveying device according to claim 1, characterized in that: The clamping mechanism includes a fixed block (330), a pressure block (340) and a linear drive member (350), wherein the fixed block (330) is connected to the output end of the linear drive mechanism (310), and a guide hole for the feed strip film (200) to pass through is formed between the pressure block (340) and the fixed block (330), and the output end of the linear drive member (350) is connected to the pressure block (340), and the linear drive member (350) is configured to drive the pressure block (340) to move relative to the fixed block (330) to clamp the feed strip film (200).

3. The electrode guide conveying device according to claim 1, characterized in that: The material strip film (200) has a bearing surface with a width greater than the width of the electrode; and / or, the electrode guiding and conveying equipment further includes a vacuum adsorption platform (620), the vacuum adsorption platform (620) extends from the electrode loading station to the electrode unloading station, the vacuum adsorption platform (620) is provided with a plurality of first adsorption holes, the material strip film (200) is provided with a plurality of second adsorption holes (201), and the vacuum adsorption platform (620) is configured to be able to vacuum adsorb the material strip film (200) and the electrode on the material strip film (200).

4. The electrode guide conveying device according to claim 1, characterized in that: The material strip film conveying unit includes a first unwinding mechanism (510) and a first rewinding mechanism (530), wherein the first unwinding mechanism (510) is configured to unwind the material strip film (200), and the first rewinding mechanism (530) is configured to rewind the material strip film (200).

5. The electrode guide conveying device according to claim 4, characterized in that: The material strip film conveying unit also includes a second winding mechanism (520), a plurality of plastic frames (110) are formed on the surface of the material strip film (200), and the plurality of plastic frames (110) are spaced apart along the extension direction of the material strip film (200), and the material strip film (200) is covered with release paper for covering the plurality of plastic frames (110), and the second winding mechanism (520) is configured to peel off the release paper from the material strip film (200) and wind it up so that the plastic frame (110) is exposed and can be transferred to the electrode at the plastic frame manufacturing station.

6. The electrode guide conveying device according to claim 5, characterized in that: A visual inspection mechanism is provided above the electrode loading station, and the visual inspection mechanism is configured to obtain position data of the plastic frame (110) and / or the electrode, and the clamping guide unit (300) is configured to transport the material strip film (200) according to the position data to adjust the position of the electrode at the plastic frame manufacturing station.

7. The electrode guide conveying device according to claim 6, characterized in that: It also includes a cutting mechanism (710), a second unwinding mechanism (800), a vacuum belt conveying mechanism (720) and a transfer robot. The second unwinding mechanism (800) is configured to unwind the electrode material strip and convey it to the cutting mechanism (710). The cutting mechanism (710) is configured to cut the electrode material strip into a plurality of electrode pieces. The vacuum belt conveying mechanism (720) is configured to convey the cut electrode pieces toward the electrode loading station. The transfer robot is configured to transfer the electrode pieces from the vacuum belt conveying mechanism (720) to the electrode loading station.

8. The electrode guide conveying device according to any one of claims 5 to 7, characterized in that: It also includes a plastic frame transfer mechanism (610), which is configured to transfer the plastic frame (110) from the material strip film (200) to a pole piece located at the plastic frame manufacturing station.

9. The electrode guide and conveying device according to claim 8, characterized in that: There are two of each of the clamping guide unit (300) and the material strip film conveying unit, and the clamping guide unit (300) and the material strip film conveying unit are arranged in a one-to-one correspondence. The rubber frame transfer mechanism (610) is configured to press the rubber frames (110) on the two material strip films (200) onto the two opposite surfaces of the electrode located at the rubber frame manufacturing station.

10. Solid-state battery production line, characterized in that, It comprises the pole piece guiding and conveying equipment as described in any one of claims 1 to 9.

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