Pole piece manufacturing method and equipment based on rubber frame transfer printing and solid-state battery production line

Abstract

The invention discloses a pole piece manufacturing method and equipment based on rubber frame transfer printing and a solid-state battery production line, and relates to the technical field of solid-state battery manufacturing. The method comprises the following steps: feeding pole pieces positioned at a feeding station to a forming station one by one, and manufacturing a rubber frame on one surface of each pole piece; turning over the pole piece with the rubber frame on one side; the turned-over pole pieces are conveyed to a cache station, and stacking treatment of the pole pieces is carried out; after the pole pieces located at the feeding station are consumed, the pole pieces located at the temporary storage station are conveyed to a forming station one by one, and rubber frames are manufactured on the other surfaces of the pole pieces; and carrying out blanking treatment on the pole piece with the rubber frames on the two surfaces. The forming work of the double-faced rubber frame of the pole piece can be completed only through one set of rubber frame forming mechanism, the occupied space of equipment is reduced, and the forming efficiency of the double-faced rubber frame of the pole piece is high.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-state battery manufacturing, and in particular to a method and equipment for manufacturing a pole piece based on rubber frame transfer, and a solid-state battery production line. Background Art

[0002] Solid-state batteries are new batteries that use solid electrolytes to replace the diaphragms and liquid electrolytes in traditional liquid batteries. Solid-state lithium batteries can use lithium metal anodes to replace the graphite or silicon anodes in traditional lithium-ion batteries. Compared with traditional anodes, lithium metal anodes have higher energy density, allowing solid-state batteries to store more energy in the same volume, making solid-state batteries likely to replace liquid batteries and be widely used.

[0003] The existing solid-state battery production process is not very mature. Compared with the liquid electrolyte that can fully contact the electrode, the solid electrolyte layer in the solid-state battery is difficult to fit tightly with the electrode, which adversely affects the quality of the solid-state battery.

[0004] In the related technology, in order to improve the positioning and fitting effect between the solid electrolyte layer and the pole piece, so as to improve the quality of the solid-state battery, our company manufactures a rubber frame on both sides of one of the positive pole piece and the negative pole piece through a molding process, and the other is embedded in the rubber frame, so that the positive pole piece and the negative pole piece are staggered and stacked into a battery cell, and the battery cell is subjected to isostatic pressing treatment; through the enclosure and limiting effect of the rubber frame, the lateral displacement between the positive pole piece and the negative pole piece can be limited, and the solid electrolyte layer and the pole piece can be closely fitted. In the traditional rubber frame manufacturing process, the pole pieces are usually sent to the first molding station, the flipping station and the second molding station in turn, and the rubber frames are manufactured on the two surfaces of the pole piece by the rubber frame molding mechanism. However, such a manufacturing method will lead to a complex structure of the corresponding manufacturing equipment, occupy a large space, and have high cost. Summary of the invention

[0005] 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 method, equipment and solid-state battery production line for manufacturing a pole piece based on a plastic frame transfer, which can complete the plastic frame molding work on both sides of the pole piece by only one set of plastic frame molding mechanism, thereby reducing the space occupied by the equipment, and the molding efficiency of the double-sided plastic frame of the pole piece is high.

[0006] The first embodiment of the present invention provides a method for manufacturing a pole piece based on a plastic frame transfer, which comprises the following steps: The pole pieces at the loading station are sent to the forming station one by one, and a rubber frame is manufactured on one of the surfaces of the pole piece; Turn over the pole piece with a rubber frame on one side; The flipped electrode is sent to the buffer station and stacked; When the electrode pieces at the loading station are consumed, the electrode pieces at the buffering station are sent to the forming station one by one, and a rubber frame is manufactured on the other surface of the electrode pieces; Cut the pole pieces with double-sided adhesive frames.

[0007] According to the first aspect of the embodiment of the present invention, the electrode manufacturing method based on the transfer of the rubber frame has at least the following beneficial effects: in the work of transferring the rubber frame to the electrode, the multiple electrode sheets placed at the loading station are continuously sent to the forming station in sequence to manufacture a rubber frame on one of the surfaces of the electrode sheet; after each electrode sheet completes the rubber frame manufacturing process, the electrode sheet is flipped 180° so that a rubber frame can be subsequently manufactured on the other surface of the electrode sheet; after the electrode sheet completes the flipping process, the electrode sheet is transferred to the cache station and stacked until all the electrode sheets have completed the rubber frame manufacturing process, at which time, the stacked electrode sheets have a rubber frame on one side; then, the multiple electrode sheets located at the cache station are continuously sent to the forming station in sequence to manufacture a rubber frame on the other surface of the electrode sheet, so that rubber frames are formed on both sides of the electrode sheet, and finally, the electrode sheet with rubber frames on both sides can be unloaded.

[0008] By adopting the above method, the rubber frame molding work on both sides of the pole piece can be completed on a device with only one set of rubber frame molding mechanisms, thereby simplifying the device structure, reducing the space occupied and the cost of the equipment, and the rubber frame manufacturing efficiency is high.

[0009] In some embodiments of the present invention, the blanking process of the electrode with a double-sided adhesive frame includes the following steps: Move the loading magazine located at the loading station to the unloading station; The pole pieces with double-sided adhesive frames are sent to the loading magazine, and the pole pieces are stacked; The stacked pole pieces are cut into pieces.

[0010] In some embodiments of the present invention, when the electrode pieces at the loading station are consumed, the electrode pieces at the buffer station are sent to the forming station one by one, and a plastic frame is manufactured on the other surface of the electrode pieces, including the following steps: When the electrode pieces at the feeding station are consumed, the electrode pieces at the buffer station are sent to the forming station one by one in the opposite direction, wherein the feeding station and the buffer station are respectively located at opposite sides of the forming station; Manufacturing a glue frame on the other surface of the pole piece; The blanking process of the electrode with double-sided adhesive frame includes the following steps: The pole pieces with double-sided adhesive frames are sent to the loading magazine located at the loading station, and the pole pieces are stacked; The stacked pole pieces are cut into pieces.

[0011] In some embodiments of the present invention, the method for manufacturing a pole piece based on a plastic frame transfer further includes the following steps: after manufacturing a plastic frame on the pole piece, drying the pole piece; and / or, Before manufacturing the plastic frame on the pole piece, the pole piece is subjected to a deflection correction process; and / or, After the plastic frame is manufactured on the pole piece, the pole piece is subjected to defect detection processing; Send the NG electrodes to the NG station.

[0012] In some embodiments of the present invention, the method for manufacturing a pole piece based on a plastic frame transfer further comprises the following steps: before manufacturing a plastic frame on the pole piece, conveying a material strip film to the molding station; The pole piece is placed on the material strip film, and the material strip film is controlled to deliver the pole piece to the forming station.

[0013] In some embodiments of the present invention, placing the pole piece on the strip film and controlling the strip film to deliver the pole piece to the forming station comprises the following steps: Placing the electrode piece on the material strip film, and enclosing the plastic frame along the edge of the electrode piece so that the plastic frame can be pressed on the electrode piece, wherein the plastic frame is formed on the upper surface of the material strip film; Applying vacuum adsorption to the strip film and the electrode, wherein the strip film is formed with adsorption pores; The strip films on both sides of the pole piece are clamped and fixed, and the strip films and the pole piece are driven to move synchronously to the forming station.

[0014] The second aspect of the present invention provides a pole piece manufacturing device based on a rubber frame transfer, which is used to implement the pole piece manufacturing method based on a rubber frame transfer as described in the first aspect of the present invention. The pole piece manufacturing device based on a rubber frame transfer includes: A loading magazine, which is used for stacking pole pieces, and the loading magazine is arranged on the loading station; A rubber frame forming mechanism, which is used to manufacture a rubber frame on the surface of the pole piece, and the rubber frame forming mechanism is arranged above the forming station; A flipping mechanism, which is used to flip over the pole piece with a rubber frame on one side; A cache magazine, which is used for stacking pole pieces with a rubber frame on one side, and the cache magazine is arranged on the cache station; A first transfer mechanism, which is used to transfer the pole pieces from the feeding magazine to the forming station one by one, and is also used to transfer the pole pieces from the buffer magazine to the forming station one by one when the pole pieces in the feeding magazine are consumed; The second transfer mechanism is used to transfer the turned-over pole pieces to the cache station and stack them in the cache magazine.

[0015] According to the electrode manufacturing equipment based on rubber frame transfer according to the embodiment of the second aspect of the present invention, there are at least the following beneficial effects: a loading magazine located at the loading station has multiple electrode sheets stacked thereon, and the first transfer mechanism continuously transfers the electrode sheets in the loading magazine to the molding station in order, so as to manufacture a rubber frame on the surface of the electrode sheet by means of the rubber frame molding mechanism. At this time, a rubber frame is formed on a single side of the electrode sheet; then, the electrode sheet with the rubber frame on one side is turned over 180° by the turning mechanism so as to manufacture a rubber frame on the other surface of the electrode sheet later; then, the second transfer mechanism transfers the turned-over electrode sheet to the cache magazine located at the cache station, and stacks the electrode sheets in the cache magazine; when all the electrode sheets transferred from the loading magazine have completed the rubber frame manufacturing process and are neatly stacked in the cache magazine, the first transfer mechanism will continuously transfer the electrode sheets in the cache magazine to the molding station in order, so as to manufacture a rubber frame on the other surface of the electrode sheet by means of the rubber frame molding mechanism. At this time, both surfaces of the electrode sheet have rubber frames, and they can be unloaded.

[0016] With such a structural design, the rubber frame forming work on the two surfaces of the pole piece in the thickness direction can be efficiently completed with only one rubber frame forming mechanism, so that the equipment structure is simplified, less space is occupied, and the cost is low.

[0017] In some embodiments of the present invention, the electrode manufacturing equipment based on rubber frame transfer also includes a translation mechanism, and the electrode manufacturing equipment based on rubber frame transfer is provided with a unloading station, and the translation mechanism is used to drive the loading magazine to move between the loading station and the unloading station, and the second transfer mechanism is also used to transfer the double-sided electrode with a rubber frame from the flipping mechanism to the unloading station, and stack it on the loading magazine.

[0018] In some embodiments of the present invention, the electrode manufacturing equipment based on the plastic frame transfer further includes: A conveying mechanism, which is used to convey the electrode with the rubber frame to the flipping mechanism; A third transfer mechanism, which is used to transfer the electrode with the plastic frame from the molding station to the conveying mechanism; A drying mechanism, which is used to dry the electrode with the glue frame located on the conveying mechanism; A defect detection mechanism, which is used to perform defect detection on the pole piece with the glue frame located on the conveying mechanism; Wherein, the second transfer mechanism is also used to remove NG pole pieces; And / or, it also includes a correction mechanism, which is used to correct the electrode pieces, and the correction mechanism is arranged between the feeding magazine and the rubber frame molding mechanism. The first transfer mechanism includes a first transfer component, a second transfer component and a third transfer component. The first transfer component is used to transfer the electrode pieces from the feeding magazine to the correction mechanism one by one, the second transfer component is used to transfer the electrode pieces from the correction mechanism to the molding station, and the third transfer component is used to transfer the electrode pieces from the cache magazine to the correction mechanism one by one after the electrode pieces in the feeding magazine are consumed.

[0019] In some embodiments of the present invention, the electrode manufacturing equipment based on the plastic frame transfer further includes: A material strip film conveying mechanism, which is used to convey the material strip film along a first direction, a material receiving station, the forming station and a material discharging station are sequentially arranged above the material strip film along the first direction, and the material strip film is formed with adsorption pores; A pole piece transfer mechanism comprises a first clamping assembly and a second clamping assembly arranged at intervals along a first direction, wherein the first clamping assembly and the second clamping assembly are both used to clamp the material strip film and vacuum-absorb the material strip film and the pole piece thereon, so as to transfer the pole piece on the material strip film from the material receiving station to the molding station and the discharging station in sequence.

[0020] In some embodiments of the present invention, the strip film conveying mechanism comprises: An unwinding assembly, which is used to unwind a material strip film, wherein the material strip film is formed with a plurality of adhesive frames sequentially spaced and distributed along the extension direction of the material strip film, and the material strip film is coated with a release paper for covering the adhesive frames; A first winding assembly, which is used to peel the release paper from the material film and wind it up, so that the plastic frame can be transferred to the pole piece at the molding station; The second winding component is used to wind up the material film strip from which the release paper has been peeled off.

[0021] The third aspect of the present invention provides a solid-state battery production line, which includes a pole piece manufacturing device based on rubber frame transfer as described in the second aspect of the embodiment.

[0022] According to the solid-state battery production line of the third aspect of the embodiment of the present invention, there are at least the following beneficial effects: the solid-state battery production line adopts the above-mentioned structure of the pole piece manufacturing equipment based on the plastic frame transfer, which can improve the efficiency of the pole piece plastic frame manufacturing and reduce costs.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic flow chart of a method for manufacturing a pole piece based on a plastic frame transfer according to an embodiment of the present invention; Figure 2 It is a detailed flow chart of step S50 in the electrode manufacturing method based on the plastic frame transfer provided in an embodiment of the present invention; Figure 3 It is a detailed flow chart of step S40 in the electrode manufacturing method based on plastic frame transfer provided according to another embodiment of the present invention; Figure 4 It is a detailed flow chart of step S50 in the electrode manufacturing method based on plastic frame transfer provided according to another embodiment of the present invention; Figure 5 It is a flow chart of a pole piece deviation correction step in a pole piece manufacturing method based on plastic frame transfer provided in an embodiment of the present invention; Figure 6 It is a flow chart of a pole piece drying step in a pole piece manufacturing method based on plastic frame transfer provided in an embodiment of the present invention; Figure 7 It is a flow chart of a pole piece screening step in a pole piece manufacturing method based on plastic frame transfer provided in an embodiment of the present invention; Figure 8 It is a flow chart of the step of conveying the pole piece to the forming station in the pole piece manufacturing method based on the plastic frame transfer provided in an embodiment of the present invention; Fig. 9 It is a detailed flow chart of step S80 in the electrode manufacturing method based on the plastic frame transfer provided in an embodiment of the present invention; Fig.10 is a schematic diagram of the structure of a pole piece manufacturing device based on rubber frame transfer provided in an embodiment of the present invention at a top view angle; Fig.11 It is a structural schematic diagram of a pole piece manufacturing device based on rubber frame transfer provided in an embodiment of the present invention at a main viewing angle; Fig.12 It is a structural schematic diagram of a pole piece transfer mechanism in a pole piece manufacturing device based on rubber frame transfer provided in an embodiment of the present invention; Fig.13 It is a structural schematic diagram of a first clamping and conveying assembly and a second clamping and conveying assembly in a pole piece manufacturing device based on rubber frame transfer according to an embodiment of the present invention; Fig.14 It is a schematic diagram of the working principle of the pole piece transfer mechanism in the pole piece manufacturing equipment based on the rubber frame transfer provided in an embodiment of the present invention; Fig.15 is a schematic structural diagram of a material strip film provided according to an embodiment of the present invention; Fig.16 is a schematic diagram of the structure of a battery cell provided according to an embodiment of the present invention; Fig.17 It is a schematic diagram of the workflow of a pole piece manufacturing device based on rubber frame transfer provided according to an embodiment of the present invention.

[0025] Figure numerals: 100, pole piece; 101, negative pole piece; 102, positive pole piece; 110, rubber frame; 200, material strip film; 201, adsorption pores; 310, loading magazine; 320, buffer magazine; 330, unloading station; 410, first transfer component; 420, second transfer component; 430, third transfer mechanism; 440, second transfer mechanism; 450, third transfer component; 510, deviation correction platform; 520, detection mechanism; 600, pole piece transfer mechanism; 601, first pressing plate ; 602, second pressing plate; 603, adsorption hole; 604, first lifting seat; 605, second lifting seat; 606, telescopic cylinder; 607, supporting seat; 610, first clamping and feeding assembly; 620, second clamping and feeding assembly; 630, base; 710, conveying mechanism; 720, defect detection mechanism; 730, drying mechanism; 740, NG station; 810, rubber frame molding mechanism; 821, unwinding assembly; 822, first winding assembly; 823, second winding assembly; 900, turning mechanism. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it is to 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.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Reference below Figures 1 to 17 The present invention describes a method and equipment for manufacturing a pole piece based on a plastic frame transfer and a solid-state battery production line.

[0030] like Figures 1 to 17 As shown, the pole piece manufacturing method based on rubber frame transfer according to the embodiment of the first aspect of the present invention can be applicable to the molding of the rubber frames 110 on the two surfaces of the pole piece 100 in the thickness direction, especially the molding of the rubber frames 110 on both sides of the pole piece 100 can be completed by only one set of rubber frame molding mechanisms 810, which can reduce the occupied space of the equipment and improve the molding efficiency of the rubber frames 110 on both sides of the pole piece 100.

[0031] like Figure 1 As shown, the electrode manufacturing method based on the plastic frame transfer includes the following steps: Step S10 : sending the pole pieces 100 located at the loading station to the forming station one by one, and manufacturing a rubber frame 110 on one surface of the pole piece 100 .

[0032] Step S20: Turn over the electrode piece 100 with the adhesive frame 110 on one side.

[0033] Step S30: sending the turned-over electrode sheets 100 to a buffer station and stacking the electrode sheets 100 .

[0034] Step S40: when the electrode pieces 100 at the loading station are consumed, the electrode pieces 100 at the buffering station are sent to the forming station one by one, and a plastic frame 110 is manufactured on the other surface of the electrode piece 100.

[0035] Step S50: cutting the electrode piece 100 with the double-sided adhesive frame 110.

[0036] It is understandable that, in step S10, multiple electrode pieces 100 can be stacked from top to bottom at the loading station, and the multiple electrode pieces 100 placed at the loading station are transferred out one by one by a robot, and are continuously sent to the molding station in sequence, so that the rubber frame 110 is manufactured on one surface of the electrode piece 100 by the rubber frame molding mechanism 810. Of course, the electrode pieces 100 can also be transported to the loading station or the molding station by a conveying device such as a belt conveyor.

[0037] In step S20, after the manufacturing process of the rubber frame 110 is completed on one surface of each pole piece 100, the pole piece 100 can be flipped 180° by the flipping mechanism (900) so that the rubber frame 110 can be manufactured on the other surface of the pole piece 100 by the rubber frame molding mechanism 810, thereby forming the rubber frame 110 on both surfaces of the pole piece 100.

[0038] In step S30, after the pole piece 100 completes the flipping process, the pole piece 100 can be transferred to the cache station by a robot arm and stacked so that all the pole pieces 100 are neatly stacked from top to bottom until all the pole pieces 100 have completed the glue frame 110 manufacturing process. At this time, the pole piece 100 stacked at the cache station has a glue frame 110 on one side, and the glue frame 110 still needs to be manufactured on the other surface of the pole piece 100 later.

[0039] In step S40, since the electrode piece 100 at the loading station has been consumed and a rubber frame 110 is formed on one of the surfaces of the electrode piece 100, a rubber frame 110 can be manufactured for the other surface of the electrode piece 100. Then, at this time, the multiple electrode pieces 100 at the cache station can be transferred out one by one by a robot and continuously sent to the molding station in sequence, so that the rubber frame 110 can be manufactured on the other surface of the electrode piece 100 with the help of the rubber frame molding mechanism 810, so that the rubber frame 110 is formed on both sides of the electrode piece 100.

[0040] In step S50, since the two surfaces of the pole piece 100 in the thickness direction have completed the manufacturing process of the plastic frame 110, the pole pieces 100 with the double-sided plastic frame 110 can be neatly stacked by a robot. Specifically, all the pole pieces 100 are stacked at the unloading station 330 so that the staff can take away all the stacked pole pieces 100 to complete the unloading work of the pole pieces 100. Of course, the pole pieces 100 with the double-sided plastic frame 110 can also be transported out piece by piece by a conveying device.

[0041] In some embodiments, Figure 1 and Figure 2As shown, step S50, i.e., the step of blanking the electrode piece 100 with the double-sided adhesive frame 110, specifically includes the following steps: Step S51: Move the loading magazine 310 located at the loading station to the unloading station 330 .

[0042] Step S52 : sending the electrode pieces 100 with the double-sided adhesive frame 110 to the loading magazine 310 , and stacking the electrode pieces 100 .

[0043] Step S53: cutting the stacked pole pieces 100 .

[0044] It is understandable that the cut pieces of electrode pieces 100 can be neatly placed from top to bottom in the loading magazine 310 manually or automatically, and the loading magazine 310 can be placed at the loading station. When the electrode pieces 100 are transferred out by a robot, the electrode pieces 100 in the loading magazine 310 can be lifted upward by a lifting device, so that the topmost electrode pieces 100 are lifted to the opening of the loading magazine 310, so as to be easily picked up by the robot.

[0045] In step S50, not only is the loading magazine 310 used to provide the electrode 100 at the loading station to complete the feeding of the electrode 100, but also, when the last electrode 100 in the loading magazine 310 has been transferred out, the loading magazine 310 can be driven by a linear drive device such as a linear module, a cylinder, etc. to move to the unloading station 330, so that the electrode 100 with a double-sided adhesive frame 110 can be neatly stacked in the loading magazine 310 under the action of the robot. Then, the staff can directly take away the loading magazine 310 so that the next loading magazine 310 can carry the electrode 100 and be placed at the loading station. With this design, there is no need to add an additional unloading magazine.

[0046] Of course, it is not excluded that an additional blanking magazine is provided at the blanking station 330 so that the pole piece 100 with the double-sided adhesive frame 110 can be stacked in the blanking magazine.

[0047] In other embodiments, Figure 1 , Figure 3 and Figure 4 As shown, step S40, that is, when the electrode pieces 100 at the loading station are consumed, the electrode pieces 100 at the buffer station are sent to the forming station one by one, and the plastic frame 110 is manufactured on the other surface of the electrode piece 100. Specifically, the steps include: Step S41: When the electrode pieces 100 at the loading station are consumed, the electrode pieces 100 at the buffer station are sent to the forming station one by one in the opposite direction, wherein the loading station and the buffer station are located at opposite sides of the forming station.

[0048] Step S42 : manufacturing a plastic frame 110 on the other surface of the pole piece 100 .

[0049] Furthermore, step S50, i.e., the step of blanking the electrode piece 100 with the double-sided adhesive frame 110, specifically includes the following steps: Step S54: sending the electrode pieces 100 with the double-sided adhesive frame 110 to the loading magazine 310 located at the loading station, and stacking the electrode pieces 100.

[0050] Step S55: cutting the stacked pole pieces 100 .

[0051] It is understandable that a loading station may be provided on one side of the molding station, and a buffer station may be provided on the other side of the molding station. In the present embodiment, assuming that the loading station is located at the front side of the molding station, and the buffer station is located at the rear side of the molding station, when the pole piece 100 is transferred from the loading station to the molding station from the front to the back, and the manufacture of the rubber frame 110 is completed, the pole piece 100 with the rubber frame 110 on one side will be stacked at the buffer station. Of course, a buffer magazine 320 may be provided at the buffer station, and in the process of stacking the pole piece 100 on the buffer magazine 320, the pole piece 100 on the top layer can be slowly moved downward by the action of the corresponding lifting device.

[0052] When the last pole piece 100 in the loading magazine 310 is transferred out and all pole pieces 100 are neatly stacked at the cache station, the pole pieces 100 located at the cache station can be transferred from the back to the front to the forming station one by one by the manipulator. At this time, the lifting device will lift the pole pieces 100 in the cache magazine 320 upward, so that the top pole piece 100 is lifted to the opening of the cache magazine 320, which is convenient for the manipulator to pick up. In order to manufacture the plastic frame 110 on the other surface of the pole piece 100. After the two surfaces of the pole piece 100 in the thickness direction are formed with the plastic frame 110, the pole piece 100 can be transferred from the back to the front of the forming station to the loading magazine 310, and the stacking of the pole pieces 100 is completed, so that the subsequent staff can directly take away the loading magazine 310. With such a design, there is no need to set up a feeding magazine and a linear drive device for driving the feeding magazine 310 to move to the feeding station 330.

[0053] In some embodiments, Figures 5 to 7 As shown, the electrode manufacturing method based on the plastic frame transfer also includes the following steps: an electrode correction step, an electrode drying step, and an electrode screening step. Specifically, it includes: Step S61 : before manufacturing the plastic frame 110 on the pole piece 100 , the pole piece 100 is subjected to a deviation correction process.

[0054] Step S62: After the plastic frame 110 is manufactured on the electrode 100 , the electrode 100 is dried.

[0055] Step S63 : After the plastic frame 110 is manufactured on the pole piece 100 , a defect detection process is performed on the pole piece 100 .

[0056] Step S64 : sending the NG electrode piece 100 to the NG station 740 .

[0057] It is understandable that the electrode deviation correction step, the electrode drying step and the electrode screening step can be selectively performed according to actual needs. The electrode drying step can be performed before the electrode screening step or after the electrode screening step.

[0058] Whenever the pole piece 100 is sent to the molding station, step S61 needs to be executed. Specifically, the pole piece 100 is corrected by the correction mechanism to avoid the deterioration of the molding accuracy of the rubber frame 110 due to the position offset of the pole piece 100. Specifically, the correction process needs to be completed before the pole piece 100 is transferred from the loading station to the molding station. The correction process also needs to be completed before the pole piece 100 is transferred from the buffer station to the molding station.

[0059] Whenever a glue frame 110 is formed on any surface of the pole piece 100 , step S62 needs to be executed. Specifically, the pole piece 100 and the glue frame 110 thereon are dried by the drying mechanism 730 , so as to shape the glue frame 110 faster and improve the molding effect of the glue frame 110 .

[0060] Whenever a plastic frame 110 is formed on any surface of the pole piece 100, steps S63 and S64 need to be performed. Specifically, the pole piece 100 and the plastic frame 110 thereon are inspected by the defect detection mechanism 720. If the pole piece 100 is detected to have defects, the pole piece 100 is judged to be an NG (Not Good) pole piece 100. Then, the NG pole piece 100 needs to be transferred to the NG station 740 by a manipulator. Of course, an NG magazine or a waste box can be provided at the NG station 740 to collect the NG pole piece 100. If the pole piece 100 is detected to be good and has no defects, the pole piece 100 is judged to be qualified and is transferred to the cache station. If both sides of the pole piece 100 have plastic frames 110, it is subjected to material unloading processing.

[0061] In some embodiments, Figure 8 As shown, the electrode manufacturing method based on the plastic frame transfer also includes the following steps: Step S70: before manufacturing the plastic frame 110 on the electrode 100, the material strip film 200 is conveyed to the molding station.

[0062] Step S80: placing the pole piece 100 on the strip film 200, and controlling the strip film 200 to deliver the pole piece 100 to the forming station.

[0063] Among them, Fig. 9 As shown, step S80, that is, placing the pole piece 100 on the strip film 200 and controlling the strip film 200 to send the pole piece 100 to the forming station, specifically includes the following steps: Step S81 : placing the pole piece 100 on the material strip film 200 , and enclosing the plastic frame 110 along the edge of the pole piece 100 , so that the plastic frame 110 can be pressed onto the pole piece 100 , wherein the plastic frame 110 is formed on the upper surface of the material strip film 200 .

[0064] Step S82 : applying vacuum adsorption to the material strip film 200 and the electrode piece 100 , wherein the material strip film 200 is formed with adsorption pores 201 .

[0065] Step S83: clamping and fixing the strip film 200 located on both sides of the pole piece 100, and driving the strip film 200 and the pole piece 100 to move synchronously to the forming station.

[0066] In this embodiment, the strip film 200 is used as a carrier to transport the pole piece 100 to the molding station. Among them, a rubber frame 110 is formed on the upper surface of the strip film 200, the number of which is not limited to one, and is arranged at a certain interval along the extension direction of the strip film 200, and the strip film 200 is provided with a plurality of adsorption pores 201 along its extension direction. The strip film 200 can be a plastic film such as PET (polyethylene terephthalate) film, PC (polycarbonate) film, etc. The strip film 200 can be transported by unwinding and rewinding.

[0067] When the electrode 100 is transferred from the loading station to the strip film 200 by the robot, the electrode 100 is located above the glue frame 110, and the glue frame 110 is enclosed along the edge of the electrode 100; then, a certain vacuum adsorption effect is applied to the strip film 200 and the electrode 100. Since the strip film 200 has adsorption pores 201, the negative pressure airflow through the adsorption pores 201 can adsorb the electrode 100, so that the electrode 100 stays steadily on the strip film 200. Then, a certain clamping and fixing effect is applied to the strip film 200 located on both sides of the electrode 100, and the strip film 200 is driven to move toward the molding station. At this time, the electrode 100 can move to the molding station together with the strip film 200 and the glue frame 110; finally, the glue frame 110 is transferred from the strip film 200 to the surface of the electrode 100 by hot pressing. Such a design can avoid the problem that the pole piece 100 is offset due to the low conveying accuracy of the material strip film 200, thereby reducing the manufacturing accuracy of the plastic frame 110.

[0068] In addition, the width dimension of the material strip film 200 is greater than the width dimension of the pole piece 100. Therefore, the material strip film 200 can bear the colloid waste generated during the manufacturing process of the glue frame 110. During the manufacturing process of the glue frame 110, it can prevent the colloid from overflowing to the outside of the pole piece 100, causing the molding station to be contaminated, and then contaminating the next pole piece 100 transferred to the molding station, and causing the molding accuracy of the glue frame 110 of the pole piece 100 to decrease.

[0069] The electrode manufacturing method based on rubber frame transfer provided in an embodiment of the present invention adopts the above-mentioned method, and can complete the molding of the rubber frame 110 on both sides of the electrode 100 on a device containing only one set of rubber frame molding mechanisms 810, thereby simplifying the equipment structure, reducing the space occupied and the cost of the equipment, and the manufacturing efficiency of the rubber frame 110 is high.

[0070] like Figures 1 to 17 As shown, the pole piece manufacturing equipment based on the rubber frame transfer according to the second aspect of the embodiment of the present invention is used to implement the pole piece manufacturing method based on the rubber frame transfer according to the first aspect of the embodiment.

[0071] like Fig.10 and Fig.11 As shown, the electrode manufacturing device based on the plastic frame transfer has a first direction, a second direction and an up-down direction, wherein the first direction, the second direction and the up-down direction are perpendicular to each other. In this embodiment, it is assumed that the first direction is the front-to-back direction and the second direction is the left-to-right direction.

[0072] The electrode manufacturing equipment based on the rubber frame transfer includes a loading magazine 310, a rubber frame molding mechanism 810, a flipping mechanism (900), a buffer magazine 320, a first transfer mechanism and a second transfer mechanism 440.

[0073] The function of the loading magazine 310 is to stack the pole pieces 100, and the loading magazine 310 is arranged on the loading station. Multiple pole pieces 100 can be stacked from top to bottom in the loading magazine 310, and at this time, both sides of the pole pieces 100 are not provided with a plastic frame 110. A lifting device such as a push plate driven by an electric cylinder can be arranged below the loading magazine 310, and the pole pieces 100 on the top layer in the loading magazine 310 are lifted to the opening of the loading magazine 310 by the lifting device for picking up. In addition, a detector such as a photoelectric switch can be provided for detecting whether there are pole pieces 100 left in the loading magazine 310, and the detector can be used to know whether all the pole pieces 100 in the loading magazine 310 have been transferred out.

[0074] The function of the rubber frame molding mechanism 810 is to manufacture the rubber frame 110 on the surface of the pole piece 100. The rubber frame molding mechanism 810 is arranged above the molding station. The rubber frame molding mechanism 810 can be a screen printing mechanism, a glue coating mechanism or a hot pressing mechanism to manufacture the rubber frame 110 on the surface of the pole piece 100. When the rubber frame molding mechanism 810 adopts a hot pressing mechanism, it is necessary to use a material strip film 200 with the rubber frame 110, and transfer the rubber frame 110 from the material strip film 200 to the pole piece 100 by hot pressing.

[0075] The function of the flipping mechanism (900) is to flip the pole piece 100 with the glue frame 110 on one side. It is understandable that the flipping mechanism (900) may include a rotary drive and a vacuum suction cup, the vacuum suction cup can adsorb and fix the pole piece 100, and the rotary drive can drive the vacuum suction cup to flip 180° with the pole piece 100, so that the surface of the pole piece 100 with the glue frame 110 can be flipped up and down, so that the glue frame 110 can be manufactured on the other surface of the pole piece 100 later. The rotary drive can be a rotary cylinder, a motor, or a manipulator with a rotary cylinder, etc. Of course, a support platform can also be added so that the flipping mechanism (900) can place the flipped pole piece 100 on the support platform.

[0076] The cache magazine 320 is used for stacking the pole pieces 100 with a single-sided adhesive frame 110. The cache magazine 320 is arranged on the cache station. The cache magazine 320 can provide a stacking storage space for the pole pieces 100 with a single-sided adhesive frame 110. A lifting device for lifting the pole pieces 100 can also be configured below the cache magazine 320. The cache magazine 320 has the same structure as the loading magazine 310.

[0077] The function of the first transfer mechanism is to transfer the pole pieces 100 from the loading magazine 310 to the molding station one by one. Moreover, the first transfer mechanism is also used to transfer the pole pieces 100 from the buffer magazine 320 to the molding station one by one after the pole pieces 100 in the loading magazine 310 are consumed. The first transfer mechanism can be a manipulator with a vacuum suction cup. Specifically, the first transfer mechanism includes a three-dimensional linear module and a vacuum suction cup, and the vacuum suction cup is used to apply vacuum adsorption to the pole piece 100. The three-dimensional linear module can drive the vacuum suction cup and the pole piece 100 to move in the horizontal direction and the up and down direction respectively, so as to transfer the pole piece 100 from the loading magazine 310 or from the buffer magazine 320 to the molding station.

[0078] Of course, the first transfer mechanism can also be divided into two transfer devices, and the two transfer devices are respectively arranged corresponding to the loading magazine 310 and the cache magazine 320, and each transfer device includes a vacuum suction cup and a two-dimensional linear module.

[0079] The second transfer mechanism 440 is used to transfer the flipped pole piece 100 to the cache station and stack it in the cache magazine 320. The second transfer mechanism 440 may include a vacuum suction cup and a two-dimensional linear module, and can transfer the pole piece 100 from the flipping mechanism (900) to the cache magazine 320 through the vacuum suction cup.

[0080] In some examples, such as Fig.10 As shown, the loading magazine 310 is arranged at the front side of the rubber frame molding mechanism 810, and the buffer magazine 320 and the flipping mechanism (900) can be arranged at the left side of the rubber frame molding mechanism 810. Therefore, the pole piece 100 is transferred from the loading magazine 310 to the molding station below the rubber frame molding mechanism 810 to manufacture the rubber frame 110 on the surface of the pole piece 100; after the molding of the rubber frame 110 is completed, the pole piece 100 is transferred from the molding station to the flipping mechanism (900), and when the pole piece 100 is flipped, the pole piece 100 is transferred from the flipping mechanism (900) to the buffer magazine 320.

[0081] When it is known that the pole pieces 100 in the loading magazine 310 have been transferred and the manufacturing process of the plastic frame 110 has been completed, the pole pieces 100 in the buffer magazine 320 are returned to the molding station again so that the plastic frame 110 can be manufactured on the other surface of the pole piece 100 by the plastic frame molding mechanism 810, so that the two surfaces of the pole piece 100 in the thickness direction are formed with the plastic frame 110. Finally, the pole piece 100 with the plastic frame 110 on both sides can be transferred out to complete the unloading work.

[0082] In other examples, the loading magazine 310 and the buffer magazine 320 are respectively located on opposite sides of the rubber frame molding mechanism 810, for example, the loading magazine 310 is located on the front side of the rubber frame molding mechanism 810, and the buffer magazine 320 is located on the rear side of the rubber frame molding mechanism 810. The electrode 100 in the loading magazine 310 is transferred from front to back to the molding station under the action of the first transfer mechanism, so that the rubber frame molding mechanism 810 can manufacture the rubber frame 110 on the surface of the electrode 100 by screen printing or gluing. Then, the electrode 100 with the rubber frame 110 on one side is flipped by the flipping mechanism (900) and then transferred and stacked in the buffer magazine 320.

[0083] When the pole pieces 100 in the loading magazine 310 have all completed the molding of the plastic frame 110 and are stored in the buffer magazine 320, the pole pieces 100 in the buffer magazine 320 are transferred from the back to the front to the molding station under the action of the first transfer mechanism, so that the plastic frame molding mechanism 810 can manufacture the plastic frame 110 on the other surface of the pole piece 100. Then, the pole piece 100 with the plastic frame 110 on both sides can be transferred from the molding station by a manipulator such as the first transfer mechanism and neatly stacked in the loading magazine 310. Then, when all the pole pieces 100 are returned to the loading magazine 310, the staff can directly take out the loading magazine 310 or take out the pole piece 100 from the loading magazine 310.

[0084] In some embodiments, Fig.10 As shown, the electrode manufacturing equipment based on the rubber frame transfer also includes a translation mechanism.

[0085] Among them, the electrode manufacturing equipment based on the plastic frame transfer is provided with a material unloading station 330. The function of the translation mechanism is to drive the loading magazine 310 to move between the loading station and the unloading station 330. The second transfer mechanism 440 is also used to transfer the electrode 100 with the double-sided plastic frame 110 from the flipping mechanism (900) to the unloading station 330, and stack it on the loading magazine 310.

[0086] It is understandable that the translation mechanism can be a linear drive device such as a cylinder, an electric cylinder, a hydraulic cylinder or a linear module, which can drive the loading magazine 310 to move in the horizontal direction. In this embodiment, the loading station is located on the right side of the unloading station 330, the buffer magazine 320 is located at the rear side of the unloading station 330, the flipping mechanism (900) is located at the rear side of the buffer magazine 320, and the rubber frame molding mechanism 810 is located at the rear side of the loading station. The loading magazine 310 and the output end of the translation mechanism are detachably connected, such as a snap connection.

[0087] The staff will place the loading magazine 310 storing multiple pole pieces 100 at the loading station. When the pole pieces 100 in the loading magazine 310 have completed the double-sided plastic frame 110 molding work, the loading magazine 310 will be driven by the translation mechanism to move to the unloading station 330, so that the second transfer mechanism 440 can transfer the pole pieces 100 with double-sided plastic frames 110 from the flipping mechanism (900) to the unloading station 330, and neatly stack them in the loading magazine 310. Finally, the staff can take out the loading magazine 310 together with the pole pieces 100 with double-sided plastic frames 110. It can be seen that the loading magazine 310 can move back and forth between the loading station and the unloading station 330, playing the role of feeding and collecting finished products, and there is no need to set up an additional unloading magazine at the unloading station 330, saving costs.

[0088] Of course, it is not excluded that in other embodiments, a blanking magazine is provided at the blanking station 330 .

[0089] In some embodiments, Fig.10 and Fig.11 As shown, the electrode manufacturing equipment based on the plastic frame transfer further includes a conveying mechanism 710 , a third transfer mechanism 430 , a drying mechanism 730 and a defect detection mechanism 720 .

[0090] The function of the conveying mechanism 710 is to convey the electrode 100 with the adhesive frame 110 to the flipping mechanism (900). The function of the drying mechanism 730 is to dry the electrode 100 with the adhesive frame 110 on the conveying mechanism 710. The function of the defect detection mechanism 720 is to perform defect detection on the electrode 100 with the adhesive frame 110 on the conveying mechanism 710.

[0091] In this embodiment, the conveying mechanism 710 is a belt conveyor, and the conveying direction of the conveying mechanism 710 extends from right to left. One end of the conveying mechanism 710 is located at the rear side of the rubber frame molding mechanism 810, and the other end of the conveying mechanism 710 is located at the rear side of the flipping mechanism (900). The drying mechanism 730 and the defect detection mechanism 720 are both arranged above the conveying mechanism 710. The drying mechanism 730 can be arranged on the left side of the defect detection mechanism 720, and the electrode 100 first undergoes the defect detection process and then the drying process; of course, the drying mechanism 730 can also be arranged on the right side of the defect detection mechanism 720, and the electrode 100 first undergoes the drying process and then the defect detection process.

[0092] The drying mechanism 730 can complete the drying and curing work of the electrode 100 and the glue frame 110 thereon by infrared heating. The defect detection mechanism 720 can adopt the existing visual inspection system, which can detect the molding effect of the glue frame 110 of the electrode 100 and the appearance of the electrode 100. If the electrode 100 with the glue frame 110 on one side or the electrode 100 with the glue frame 110 on both sides is determined to be an NG electrode 100 under the operation of the defect detection mechanism 720, the NG electrode 100 needs to be removed.

[0093] The function of the third transfer mechanism 430 is to transfer the pole piece 100 with the glue frame 110 from the molding station to the conveying mechanism 710. It is understandable that the third transfer mechanism 430 may include a two-dimensional linear module and a vacuum suction cup, and the third transfer mechanism 430 can transfer the pole piece 100 with the glue frame 110 from the molding station from front to back to the right end of the conveying mechanism 710. Under the conveying action of the conveying mechanism 710, the pole piece 100 with the glue frame 110 moves from right to left, and then the flipping mechanism (900) is activated to perform a 180° flipping process on the pole piece 100 located at the left end of the conveying mechanism 710.

[0094] The second transfer mechanism 440 is also used to remove NG pole pieces 100. If the inspection result of the defect detection mechanism 720 is qualified, and a plastic frame 110 is formed on one side of the pole piece 100, then the second transfer mechanism 440 will transfer the pole piece 100 to the cache magazine 320; if a plastic frame 110 is formed on both sides of the pole piece 100, then the second transfer mechanism 440 will transfer the pole piece 100 to the unloading station 330. If the inspection result of the defect detection mechanism 720 is unqualified, then the second transfer mechanism 440 will transfer the pole piece 100 to a set position, such as the NG station 740. Of course, a magazine or a waste box can be set at the NG station 740.

[0095] In some embodiments, Fig.10 and Fig.11 As shown, the electrode manufacturing equipment based on the rubber frame transfer also includes a correction mechanism.

[0096] Among them, the function of the correction mechanism is to correct the pole piece 100, so as to improve the molding accuracy of the rubber frame 110 on the pole piece 100 and avoid the position deviation of the rubber frame 110 relative to the pole piece 100. Moreover, the correction mechanism is arranged between the feeding magazine 310 and the rubber frame molding mechanism 810. The correction mechanism includes a correction platform 510 and a detection mechanism 520, the detection mechanism 520 is located above the correction platform 510, and the pole piece 100 is placed on the correction platform 510. The correction platform 510 can correct the pole piece 100 in the front-to-back direction and the left-to-right direction, so as to realize the rapid correction of displacement and angle.

[0097] The function of the detection mechanism 520 is to obtain the plane figure of the pole piece 100 on the correction platform 510, and send the obtained plane figure to the controller electrically connected to the correction mechanism. The controller analyzes the obtained plane figure to obtain the actual position of the pole piece 100, and compares the actual position with the preset position to obtain the offset, and then controls the correction platform 510 to correct the pole piece 100 according to the offset, wherein the actual position of the pole piece 100 includes the displacement and angle. The detection mechanism 520 may include a plurality of detectors, and the detector is a CCD (charge coupled device). The specific working principle of the CCD is well known to those skilled in the art and will not be described here.

[0098] The first transfer mechanism includes a first transfer assembly 410, a second transfer assembly 420 and a third transfer assembly 450. The first transfer assembly 410 is used to transfer the pole pieces 100 from the loading magazine 310 to the deviation correction mechanism one by one, the second transfer assembly 420 is used to transfer the pole pieces 100 from the deviation correction mechanism to the forming station, and the third transfer assembly 450 is used to transfer the pole pieces 100 from the buffer magazine 320 to the deviation correction mechanism one by one when the pole pieces 100 in the loading magazine 310 are consumed.

[0099] In this embodiment, the first transfer assembly 410 includes a two-dimensional linear module and a vacuum suction cup, and the second transfer assembly 420 and the third transfer assembly 450 are structurally the same as the first transfer assembly 410. The first transfer assembly 410 can transfer the pole piece 100 in the loading magazine 310 from front to back and place it on the correction platform 510, the second transfer assembly 420 can transfer the pole piece 100 on the correction platform 510 that has been corrected from front to back and place it at the molding station, and the third transfer assembly 450 can transfer the pole piece 100 in the cache magazine 320 from left to right and place it on the correction platform 510.

[0100] In some embodiments, Figures 10 to 15 As shown, the electrode manufacturing equipment based on the rubber frame transfer also includes a material strip film conveying mechanism and an electrode transfer mechanism 600.

[0101] The function of the strip film conveying mechanism is to convey the strip film 200 along the first direction, and the strip film 200 is formed with a plurality of adsorption pores 201. The adsorption pores 201 may be circular holes. The plurality of adsorption pores 201 are arranged in an array and are arranged along the extension direction of the strip film 200, and the axis of the adsorption pores 201 extends in the up-down direction. The size, shape and arrangement of the adsorption pores 201 may be selected according to actual conditions, and are not specifically limited here.

[0102] In addition, the strip film 200 has a bearing surface, and the bearing surface is used to provide support for the electrode 100, and the width of the bearing surface is greater than the width of the electrode 100. When the colloid forms a glue frame 110 on the upper surface of the electrode 100 by coating or screen printing, even if the colloid overflows to the outside of the electrode 100, the strip film 200 can receive the overflowed colloid, thereby preventing the surface of the equipment platform such as the electrode transfer mechanism 600 from being contaminated by the colloid waste, thereby contaminating the next electrode 100 and causing the position of the electrode 100 to shift.

[0103] A material receiving station, a molding station and a material discharging station are arranged above the material strip film 200. The material receiving station, the molding station and the material discharging station are arranged in sequence along the first direction. The material receiving station is arranged close to the loading magazine 310, and the material discharging station is arranged close to the turning mechanism (900).

[0104] After the pole piece 100 is placed on the upper surface of the strip film 200 from the material receiving station, the strip film 200 can move along the first direction and send the pole piece 100 from the material receiving station to the molding station and the unloading station in sequence. Since a plastic frame molding mechanism 810 is arranged above the molding station, when the pole piece 100 moves to the molding station with the strip film 200, the plastic frame 110 can be manufactured on the pole piece 100 by the plastic frame molding mechanism 810; when the plastic frame 110 manufacturing work is completed, the pole piece 100 moves to the unloading station with the strip film 200, so that the pole piece 100 with the plastic frame 110 can be taken away by a robot such as the third transfer mechanism 430 and sent to the conveying mechanism 710.

[0105] Specifically, the material strip film conveying mechanism includes an unwinding assembly 821 , a first winding assembly 822 and a second winding assembly 823 .

[0106] The function of the unwinding assembly 821 is to unwind the strip film 200, wherein the strip film 200 is formed with a plurality of plastic frames 110, and the plurality of plastic frames 110 are sequentially spaced and distributed along the extension direction of the strip film 200, and the strip film 200 is coated with a release paper for covering the plastic frames 110. The function of the first winding assembly 822 is to peel off the release paper from the strip film 200 and to roll it up, so that the plastic frames 110 can be transferred to the pole piece 100 at the forming station. The function of the second winding assembly 823 is to roll up the strip film 200 from which the release paper has been peeled off.

[0107] The unwinding assembly 821 may be an existing unwinding machine, and the first winding assembly 822 and the second winding assembly 823 may be existing winding machines. In order to ensure that the unwinding speed of the strip film 200, the transfer speed of the pole piece 100, and the winding speed of the strip film 200 are coordinated, a strip buffer device may be added between the unwinding assembly 821 and the material receiving station, and between the material discharging station and the second winding assembly 823. The strip buffer device is an existing structure, and those skilled in the art should understand its specific structure and working principle, which will not be described in detail here.

[0108] Through the cooperation of the unwinding assembly 821 and the second winding assembly 823 , the strip film 200 can move along the first direction and sequentially pass through the material splicing station, the forming station and the discharging station, so that the pole piece 100 can be placed on the strip film 200 at the material splicing station.

[0109] The strip film 200, the rubber frame 110 and the release paper together form a composite film, and the unwinding component 821 can continuously unwind the composite film. At this time, the first winding component 822 can peel off the release paper on the composite film, so that the rubber frame 110 on the composite film is in a bare state, so that the rubber frame 110 can be transferred to the lower surface of the pole piece 100 by hot pressing at the molding station, and the second winding component 823 can roll up the strip film 200 and separate the strip film 200 and the rubber frame 110. At this time, the rubber frame 110 will avoid the adsorption pores 201 on the strip film 200. When the rubber frame 110 is in an exposed state, the pole piece 100 can be placed on the rubber frame 110 from the material connection station, so that the rubber frame 110 is enclosed along the edge of the pole piece 100, so that the surrounding side of the pole piece 100 and the rubber frame 110 can be pressed by the rubber frame molding mechanism 810 later.

[0110] The pole piece transfer mechanism 600 includes a first clamping assembly 610, a second clamping assembly 620 and a base 630. The first clamping assembly 610 and the second clamping assembly 620 are arranged at a certain interval along the first direction and are set on the base 630. The first clamping assembly 610 is located on one side of the strip film 200 in the width direction, and the second clamping assembly 620 is located on the other side of the strip film 200 in the width direction, so that the first clamping assembly 610 and the second clamping assembly 620 will not have interference effects during the synchronous movement process.

[0111] Moreover, the first clamping assembly 610 and the second clamping assembly 620 are used to clamp the material strip film 200 and vacuum-absorb the material strip film 200 and the pole piece 100 thereon, so as to transfer the pole piece 100 on the material strip film 200 from the material receiving station to the molding station and the material discharging station in sequence.

[0112] It can be understood that the first clamping component 610 and the second clamping component 620 can both clamp the strip film 200, so that the strip film 200 can move along the first direction under the driving action of the first clamping component 610 or the second clamping component 620. At the same time, since the strip film 200 is provided with a plurality of adsorption pores 201, the first clamping component 610 and the second clamping component 620 can also apply a vacuum adsorption effect to the strip film 200 and the pole piece 100 thereon while clamping the strip film 200, so that the strip film 200 and the pole piece 100 can remain stable under the transfer action of the first clamping component 610 and the second clamping component 620, and are not prone to position displacement. Moreover, during the molding process of the rubber frame 110, the pole piece 100 remains fixed due to the adsorption and fixing effect, which is beneficial to improving the molding accuracy of the rubber frame 110.

[0113] The structure of the first pinching and conveying assembly 610 is consistent with that of the second pinching and conveying assembly 620. Specifically, their structures both include a first pressing plate 601, a second pressing plate 602 and a driving component.

[0114] Among them, the first pressing plate 601 is located above the second pressing plate 602, and the upper and lower spacing between the first pressing plate 601 and the second pressing plate 602 defines the area for clamping the strip film 200. The second pressing plate 602 is provided with a vacuum air path and a plurality of adsorption holes 603. The axial direction of each adsorption hole 603 extends in the up and down direction, and the adsorption hole 603 can be a circular hole, a long strip hole, etc., and a plurality of adsorption holes 603 are arranged in an array. A plurality of adsorption holes 603 are connected to the vacuum air path, and the vacuum air path is connected to the vacuum pumping equipment through a pipeline. Moreover, the adsorption hole 603 is configured to be able to vacuum adsorb the strip film 200 and the pole piece 100 located on the strip film 200.

[0115] It is understandable that the size, shape and arrangement of the adsorption holes 603 can be set according to actual needs and are not specifically limited here. The second pressing plate 602 is located on the lower side of the strip film 200. When vacuuming, the adsorption holes 603 can provide negative pressure airflow, so that the adsorption holes 603 can apply vacuum adsorption to the strip film 200, so that the strip film 200 is firmly fixed on the second pressing plate 602. Moreover, the adsorption holes 603 will be connected to the adsorption air holes 201 on the strip film 200. Then, when the pole piece 100 is placed on the strip film 200 from the material receiving station, the pole piece 100 will be subjected to the effect of vacuum adsorption, so that the pole piece 100 is fixed on the strip film 200, avoiding the pole piece 100 from being offset during the transfer process and the molding process of the rubber frame 110, which leads to a decrease in the molding accuracy of the rubber frame 110. When the pole piece 100 is transferred to the unloading station, the vacuum pumping work can be stopped to release the vacuum adsorption effect on the strip film 200 and the pole piece 100.

[0116] In this embodiment, two first pressing plates 601 are provided, and the length direction of the first pressing plates 601 extends along the width direction of the strip film 200. One of the first pressing plates 601 is located on one side of the second pressing plate 602 in the first direction, and the other first pressing plate 601 is located on the other side of the second pressing plate 602 in the first direction, and a plurality of adsorption holes 603 are located between the two first pressing plates 601. With such a design, both ends of the strip film 200 in the first direction are clamped by the first pressing plate 601 and the second pressing plate 602, and the pole piece 100 is located between the two first pressing plates 601. It can be understood that multiple groups of adsorption holes 603 can be provided on the second pressing plate 602, so that multiple pole pieces 100 can be placed on the strip film 200 located on the upper surface of the second pressing plate 602.

[0117] The driving component is configured to drive the first pressing plate 601 and the second pressing plate 602 to move closer to each other to clamp the strip film 200, and to drive the first pressing plate 601 and the second pressing plate 602 to move away from each other to release the strip film 200. Specifically, the driving component includes a first linear driving member and a second linear driving member, wherein the output end of the first linear driving member is fixedly connected to one end of the first pressing plate 601, and the first linear driving member is configured to drive the first pressing plate 601 to move in the up-down direction, and the output end of the second linear driving member is fixedly connected to one end of the second pressing plate 602, and the second linear driving member is configured to drive the second pressing plate 602 to move in the up-down direction. It can be understood that the first linear driving member and the second linear driving member can be linear driving devices such as electric cylinders, hydraulic cylinders, and air cylinders.

[0118] Through the cooperation of the first linear drive member and the second linear drive member, the first pressure plate 601 and the second pressure plate 602 can approach each other in the up-down direction to clamp the strip film 200, and fix the strip film 200 and the pole piece 100 by vacuum adsorption, so as to complete the stable transfer of the pole piece 100; moreover, the first pressure plate 601 and the second pressure plate 602 can move away from each other in the up-down direction to release the clamping effect on the strip film 200, and at the same time, release the vacuum adsorption effect on the strip film 200 and the pole piece 100, so as to transfer the pole piece 100 away from the discharge station.

[0119] In this embodiment, the first clamping and conveying assembly 610 and the second clamping and conveying assembly 620 further include a first lifting seat 604, a second lifting seat 605 and a support seat 607. The first linear drive member and the second linear drive member are both telescopic cylinders 606, and are mounted on the support seat 607, and the support seat 607 is set on the base 630. The first lifting seat 604 and the second lifting seat 605 are mounted on the support seat 607 through a slide rail slider pair, so that the first lifting seat 604 and the second lifting seat 605 move smoothly in the up and down directions relative to the support seat 607, the movable rod of the first linear drive member is fixedly connected to the first lifting seat 604, and the movable rod of the second linear drive member is fixedly connected to the second lifting seat 605. The upper end of the first lifting seat 604 is fixedly connected to the end of the first pressing plate 601 away from the strip film 200, and the upper end of the second lifting seat 605 is fixedly connected to the end of the second pressing plate 602 away from the strip film 200.

[0120] like Fig.14 As shown, Fig.14 (a) is a schematic diagram of the first clamping and conveying assembly 610 conveying the electrode piece 100 to the forming station, and the second clamping and conveying assembly 620 conveying the electrode piece 100 to the discharging station. Fig.14 (b) is a schematic diagram of the first clamping and conveying assembly 610 conveying the electrode 100 to the forming station, and the second clamping and conveying assembly 620 returning to the receiving station. Fig.14(c) is a schematic diagram of the first clamping assembly 610 delivering the electrode piece 100 to the unloading station, and the second clamping assembly 620 delivering the electrode piece 100 to the molding station. The first clamping assembly 610 and the second clamping assembly 620 can clamp and fix the strip film 200 through the cooperation of the first pressing plate 601 and the second pressing plate 602, and apply vacuum adsorption to the strip film 200 and the electrode piece 100 thereon.

[0121] When the first clamping assembly 610 is located at the material receiving station and exerts a certain clamping effect on the portion of the strip film 200 corresponding to the material receiving station, the second clamping assembly 620 is located at the molding station and exerts a certain clamping effect on the portion of the strip film 200 corresponding to the molding station. Fig.14 As shown in (a), after the molding of the rubber frame 110 is completed, the second clamping assembly 620 drives the strip film 200 and the electrode 100 with the rubber frame 110 thereon to move to the unloading station so that the third transfer mechanism 430 can take the electrode 100 away from the unloading station. At the same time, the first clamping assembly 610 drives the strip film 200 and the electrode 100 thereon to move to the molding station so that the rubber frame 110 can be manufactured on the electrode 100.

[0122] like Fig.14 As shown in (b), when the electrode 100 with the plastic frame 110 is transferred at the unloading station, the second clamping assembly 620 will move in the opposite direction, return to the receiving station, and exert a certain clamping effect on the portion of the strip film 200 corresponding to the receiving station. Fig.14 As shown in (c), when the electrode piece 100 transferred by the first clamping and conveying component 610 completes the molding work of the rubber frame 110, the first clamping and conveying component 610 will send the material strip film 200 and the electrode piece 100 with the rubber frame 110 thereon to the unloading station. At the same time, the second clamping and conveying component 620 will transfer the material strip film 200 and the electrode piece 100 thereon from the receiving station to the molding station.

[0123] By analogy, the first clamping assembly 610 and the second clamping assembly 620 can operate synchronously and crosswise, and transfer the strip film 200 and the pole piece 100 thereon from the material receiving station to the molding station and the material discharging station in turn. With such a design, it is possible to avoid the problem of the pole piece 100 being offset due to the low conveying accuracy of the strip film 200, thereby reducing the manufacturing accuracy of the rubber frame 110.

[0124] It is understandable that if Figures 10 to 17As shown, the use process of the electrode manufacturing equipment based on rubber frame transfer in the above embodiment is as follows: a loading magazine 310 located at the loading station has multiple electrode sheets 100 stacked on top of each other, and the electrode sheets 100 in the loading magazine 310 can be continuously transferred in sequence to the correction platform 510 through the first transfer component 410 to complete the loading and correction positioning of the electrode sheets 100.

[0125] Next, the second transfer assembly 420 is used to transfer the pole piece 100 from the deviation correction platform 510 to the material strip film 200 located at the material connection station, and the material strip film 200 is driven by the pole piece transfer mechanism 600 to transfer the pole piece 100 to the forming station, so that the plastic frame 110 is manufactured on the surface of the pole piece 100 by the plastic frame forming mechanism 810, thereby completing the printing / transfer work of the plastic frame 110 on a single side of the pole piece 100. At this time, a plastic frame 110 is formed on a single side of the pole piece 100. In this process, since the pole piece 100 moves to the forming station together with the material strip film 200, the unwinding assembly 821, the first winding assembly 822 and the second winding assembly 823 work.

[0126] Subsequently, the electrode piece 100 at the discharge station is transferred to the conveying mechanism 710 by means of the third transfer mechanism 430, and the electrode piece 100 is inspected for defects by the defect detection mechanism 720 to remove NG electrode pieces 100. Next, the electrode piece 100 on the conveying mechanism 710 is dried by the drying mechanism 730 to cure the plastic frame 110 faster.

[0127] Then, the electrode piece 100 with the glue frame 110 on one side located on the conveying mechanism 710 is turned over by 180° by the turning mechanism (900) so that the glue frame 110 can be manufactured on the other surface of the electrode piece 100 later. After the turning over is completed, the electrode piece 100 located at the turning mechanism (900) is transferred by the second transfer mechanism 440. If the electrode piece 100 is detected as unqualified, it is transferred to the NG station 740 to complete the NG electrode piece 100 screening work; if the electrode piece 100 is detected as qualified, and the glue frame 110 is formed on one side of the electrode piece 100, it is transferred and stacked in the cache magazine 320; if the electrode piece 100 is detected as qualified, and the glue frame 110 is formed on both sides of the electrode piece 100, it is transferred and stacked in the loading magazine 310. At this time, the loading magazine 310 moves to the unloading station 330 under the action of the translation mechanism.

[0128] When all the electrode pieces 100 in the loading magazine 310 are consumed, the electrode pieces 100 in the cache magazine 320 are continuously transferred in order to the correction platform 510 through the third transfer component 450 to complete the correction of the electrode pieces 100; then, the second transfer component 420 is used to transfer the electrode pieces 100 on the correction platform 510 to the material strip film 200 located at the material receiving station, and the material strip film 200 is driven by the electrode piece transfer mechanism 600 to transfer the electrode piece 100 to the molding station, so that the rubber frame 110 is manufactured on the other surface of the electrode piece 100 through the rubber frame molding mechanism 810. At this time, both surfaces of the electrode piece 100 are provided with the rubber frame 110.

[0129] The electrode 100 with the double-sided adhesive frame 110 will go through a defect detection process, a drying detection process and a flipping process in sequence, and will be transferred through the second transfer mechanism 440 and stacked in the loading magazine 310 located at the unloading station 330.

[0130] The electrode manufacturing equipment based on rubber frame transfer provided in an embodiment of the present invention adopts the above-mentioned structural design, and can efficiently complete the molding of the rubber frame 110 on the two surfaces of the electrode 100 in the thickness direction with only one rubber frame molding mechanism 810, so that the equipment structure is simplified, less space is occupied, and the cost is low.

[0131] like Figures 1 to 17 As shown, a solid-state battery production line according to an embodiment of the third aspect of the present invention includes a pole piece manufacturing device based on rubber frame transfer as in the embodiment of the second aspect.

[0132] It is understandable that in the manufacturing process of solid-state batteries, multiple processing steps are included, such as the cutting process of the pole piece 100, the manufacturing process of the rubber frame 110, the lamination process, the quality inspection process, etc., and each processing process corresponds to a corresponding device. This embodiment only performs a unique structural design on the pole piece manufacturing equipment based on the rubber frame transfer in the solid-state battery production line, and does not propose 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.

[0133] The plastic frame 110 can be formed on the surface of the negative electrode sheet 101, or on the surface of the positive electrode sheet 102. Fig.16 As shown, both sides of the negative electrode sheet 101 are formed with a plastic frame 110. In the lamination process, the positive electrode sheet 102 is stacked on the negative electrode sheet 101 by a lamination device, and the battery cell can be formed by cross-stacking.

[0134] The pole piece 100 produced by the pole piece manufacturing equipment based on the plastic frame transfer can produce the following effects after the battery cell is made: during the process of the isostatic pressing equipment maintaining the pressure and pressurizing the battery cell, 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 force process, and can improve the connection effect between the solid electrolyte membrane and the electrode membrane. In addition, because the width of the negative pole piece 101 is greater than the width of the positive pole piece 102, the plastic frame 110 can provide a certain support to the negative pole piece 101, thereby avoiding the problem that even if the edge of the negative pole piece 101 bends during the pressurization process, the edges of the two adjacent negative pole pieces 101 are in contact and short-circuited due to the bending.

[0135] The solid-state battery production line of this embodiment adopts the above-mentioned structure of the pole piece manufacturing equipment based on the plastic frame transfer, which can improve the manufacturing efficiency of the plastic frame 110 of the pole piece 100 and reduce the cost.

[0136] In the description of this specification, the description with reference to the terms "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 the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0137] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for manufacturing a pole piece based on a plastic frame transfer, characterized in that: The steps include: The pole pieces (100) located at the loading station are sent to the forming station one by one, and a rubber frame (110) is manufactured on one surface of the pole piece (100); Turning over the pole piece (100) with the adhesive frame (110) on one side; The flipped electrode pieces (100) are sent to a buffering station and stacked; When the pole pieces (100) at the loading station are consumed, the pole pieces (100) at the buffer station are sent to the forming station one by one, and a rubber frame (110) is manufactured on the other surface of the pole piece (100); The electrode piece (100) with the double-sided adhesive frame (110) is cut.

2. The method for manufacturing a pole piece based on a plastic frame transfer according to claim 1, characterized in that: The blanking process of the electrode piece (100) with the double-sided adhesive frame (110) comprises the following steps: Moving the loading magazine (310) located at the loading station to the unloading station (330); Delivering the pole pieces (100) with double-sided adhesive frames (110) to the loading magazine (310), and stacking the pole pieces (100); The stacked pole pieces (100) are cut into pieces.

3. The method for manufacturing a pole piece based on a plastic frame transfer according to claim 1, characterized in that: When the electrode pieces (100) at the loading station are consumed, the electrode pieces (100) at the buffer station are sent to the forming station one by one, and a rubber frame (110) is manufactured on the other surface of the electrode piece (100), comprising the following steps: When the electrode pieces (100) at the loading station are consumed, the electrode pieces (100) at the buffer station are sent one by one in opposite directions to the forming station, wherein the loading station and the buffer station are respectively located at opposite sides of the forming station; Manufacturing a glue frame (110) on the other surface of the pole piece (100); The blanking process of the electrode piece (100) with the double-sided adhesive frame (110) comprises the following steps: Delivering the pole pieces (100) with the double-sided adhesive frame (110) to the loading magazine (310) located at the loading station, and stacking the pole pieces (100); The stacked pole pieces (100) are cut into pieces.

4. The method for manufacturing a pole piece based on a plastic frame transfer according to claim 1, characterized in that: The method further comprises the following steps: after manufacturing the plastic frame (110) on the pole piece (100), drying the pole piece (100); and / or, Before manufacturing the rubber frame (110) on the pole piece (100), performing a deviation correction process on the pole piece (100); and / or, After the rubber frame (110) is manufactured on the pole piece (100), a defect detection process is performed on the pole piece (100); The NG electrode (100) is sent to the NG station (740).

5. The method for manufacturing a pole piece based on a plastic frame transfer according to claim 1, characterized in that: The method further comprises the following steps: before manufacturing the rubber frame (110) on the pole piece (100), conveying the material strip film (200) to the molding station; The pole piece (100) is placed on the material strip film (200), and the material strip film (200) is controlled to deliver the pole piece (100) to the forming station.

6. The method for manufacturing a pole piece based on a plastic frame transfer according to claim 5, characterized in that: Placing the pole piece (100) on the strip film (200), and controlling the strip film (200) to deliver the pole piece (100) to the molding station, comprises the following steps: Placing the pole piece (100) on the material strip film (200), and enclosing the plastic frame (110) along the edge of the pole piece (100) so that the plastic frame (110) can be pressed onto the pole piece (100), wherein the plastic frame (110) is formed on the upper surface of the material strip film (200); Applying vacuum adsorption to the material strip film (200) and the pole piece (100), wherein the material strip film (200) is formed with adsorption pores (201); The material strip film (200) located on both sides of the pole piece (100) is clamped and fixed, and the material strip film (200) and the pole piece (100) are driven to move synchronously to the forming station.

7. The electrode manufacturing equipment based on the plastic frame transfer is characterized in that: For implementing the method for manufacturing a pole piece based on the transfer printing of a plastic frame as claimed in claim 1, the pole piece manufacturing equipment based on the transfer printing of a plastic frame comprises: A loading magazine (310) used for stacking pole pieces (100), the loading magazine (310) being arranged on the loading station; A rubber frame molding mechanism (810) is used to manufacture a rubber frame (110) on the surface of the pole piece (100), the rubber frame molding mechanism (810) being arranged above the molding station; A turning mechanism (900) for turning over a pole piece (100) with a rubber frame (110) on one side; A cache magazine (320) used for stacking pole pieces (100) with a single-sided plastic frame (110), the cache magazine (320) being arranged on the cache station; a first transfer mechanism, used to transfer the pole pieces (100) from the loading magazine (310) to the molding station one by one, and also used to transfer the pole pieces (100) from the buffer magazine (320) to the molding station one by one when the pole pieces (100) in the loading magazine (310) are consumed; The second transfer mechanism (440) is used to transfer the flipped pole piece (100) to the cache station and stack it in the cache magazine (320).

8. The electrode manufacturing equipment based on the plastic frame transfer according to claim 7 is characterized in that: The device also includes a translation mechanism. The electrode manufacturing equipment based on the plastic frame transfer is provided with a material unloading station (330). The translation mechanism is used to drive the loading magazine (310) to move between the loading station and the unloading station (330). The second transfer mechanism (440) is also used to transfer the electrode (100) with a double-sided plastic frame (110) from the flipping mechanism (900) to the unloading station (330), and stack them on the loading magazine (310).

9. The electrode manufacturing equipment based on the plastic frame transfer according to claim 7 is characterized in that: Also includes: A conveying mechanism (710) used for conveying the pole piece (100) with the rubber frame (110) to the turning mechanism (900); A third transfer mechanism (430) is used to transfer the electrode (100) with the rubber frame (110) from the molding station to the conveying mechanism (710); A drying mechanism (730) for drying the electrode (100) with the glue frame (110) located on the conveying mechanism (710); A defect detection mechanism (720) for performing defect detection processing on a pole piece (100) with a rubber frame (110) located on the conveying mechanism (710); The second transfer mechanism (440) is also used to remove NG pole pieces (100); And / or, it also includes a correction mechanism, which is used to correct the electrode piece (100), and the correction mechanism is arranged between the loading magazine (310) and the rubber frame molding mechanism (810). The first transfer mechanism includes a first transfer component (410), a second transfer component (420) and a third transfer component (450). The first transfer component (410) is used to transfer the electrode pieces (100) from the loading magazine (310) to the correction mechanism one by one, the second transfer component (420) is used to transfer the electrode pieces (100) from the correction mechanism to the molding station, and the third transfer component (450) is used to transfer the electrode pieces (100) from the buffer magazine (320) to the correction mechanism one by one when the electrode pieces (100) in the loading magazine (310) are consumed.

10. The electrode manufacturing equipment based on plastic frame transfer according to claim 7, characterized in that: Also includes: A material strip film conveying mechanism, used for conveying the material strip film (200) along a first direction, wherein a material receiving station, the forming station and a material discharging station are sequentially arranged above the material strip film (200) along the first direction, and the material strip film (200) is formed with adsorption pores (201); A pole piece transfer mechanism (600) comprises a first clamping assembly (610) and a second clamping assembly (620) arranged at intervals along a first direction, wherein the first clamping assembly (610) and the second clamping assembly (620) are both used to clamp the strip film (200) and vacuum-absorb the strip film (200) and the pole piece (100) thereon, so as to transfer the pole piece (100) on the strip film (200) from the material receiving station to the molding station and the material discharging station in sequence.

11. The electrode manufacturing equipment based on the plastic frame transfer according to claim 10, characterized in that: The material strip film conveying mechanism comprises: An unwinding component (821) for unwinding a material strip film (200), wherein the material strip film (200) is formed with a plurality of adhesive frames (110) distributed in sequence and at intervals along an extension direction of the material strip film (200), and the material strip film (200) is covered with a release paper for covering the adhesive frames (110); A first winding assembly (822) for peeling the release paper off the material strip film (200) and winding it up, so that the plastic frame (110) can be transferred to the pole piece (100) at the molding station; The second winding component (823) is used to wind up the material film (200) from which the release paper has been peeled off.

12. Solid-state battery production line, characterized in that: It comprises a pole piece manufacturing device based on rubber frame transfer as described in any one of claims 7 to 11.

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