Pole piece manufacturing equipment and battery cell manufacturing equipment of solid-state battery

Abstract

The utility model discloses pole piece manufacturing equipment and battery cell manufacturing equipment of a solid-state battery, and belongs to the technical field of solid-state battery manufacturing, the pole piece manufacturing equipment of the solid-state battery comprises a gluing mechanism, a first driving component and a glue solution supply component, the printing plate is provided with a frame-shaped leak hole, and the glue solution supply component is provided with a first driving component and a second driving component; the glue supply assembly is used for conveying glue to the surface of the printing plate, the first driving assembly is in transmission connection with the scraping plate so as to drive the scraping plate to reciprocate along the surface of the printing plate, and the gluing mechanism is used for gluing the first pole piece so that a glue frame matched with the frame-shaped leak hole can be formed on the first pole piece; and the first conveying mechanism is positioned below the gluing mechanism and is used for conveying the first pole piece so as to improve the laminating effect of the solid electrolyte layer with the positive pole piece and the negative pole piece.

Description

Technical Field

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

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

[0003] In related technologies, during the production process of solid-state batteries, when the solid electrolyte membrane or electrode membrane is subjected to lateral force, lateral displacement of the solid electrolyte membrane relative to the electrode membrane is likely to occur, resulting in poor bonding between the solid electrolyte membrane and the electrode membrane. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a solid-state battery electrode manufacturing device to improve the bonding effect between the solid electrolyte layer and the positive electrode and negative electrode.

[0005] The utility model also provides a solid-state battery cell manufacturing device.

[0006] According to the first aspect of the embodiment of the utility model, the solid-state battery electrode manufacturing equipment includes: a gluing mechanism, including a printing plate, a scraper, a first drive component and a glue supply component, the printing plate has a frame-shaped leakage hole, the glue supply component is used to transport the glue to the surface of the printing plate, the first drive component is connected to the scraper transmission to drive the scraper to move back and forth along the surface of the printing plate, the gluing mechanism is used to apply glue to the first electrode so that a glue frame matching the frame-shaped leakage hole is formed on the first electrode; the first conveying mechanism is located below the gluing mechanism to convey the first electrode.

[0007] The solid-state battery electrode manufacturing equipment according to the embodiment of the present invention has at least the following beneficial effects: the first conveying mechanism is located below the gluing mechanism, the first conveying mechanism is used to convey the first electrode, so that multiple first electrode pieces pass through the gluing station of the gluing mechanism in sequence, the gluing mechanism includes a printing plate, a scraper, a first driving component and a glue supply component, wherein the printing plate has a frame-shaped leakage hole, the glue supply component is used to convey the glue to the upper surface of the printing plate, the first driving component is connected to the scraper transmission, so as to drive the scraper to move back and forth along the surface of the printing plate to achieve uniform coating of the glue, and the glue is applied on the frame-shaped leakage hole. The leak hole can be coated downward through the printing plate, thereby coating the first electrode located at the gluing station of the gluing mechanism, so that a glue frame corresponding to the frame-shaped leak hole is formed on the first electrode. In the production process of solid-state batteries, the first electrode needs to be stacked in sequence with the solid electrolyte layer and the second electrode. One of the first electrode and the second electrode is the positive electrode, and the other is the negative electrode. The glue frame formed on the first electrode can be embedded with the solid electrolyte layer and the second electrode, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode or the second electrode, so as to improve the fitting effect of the solid electrolyte layer with the positive electrode and the negative electrode.

[0008] According to some embodiments of the present invention, the solid-state battery electrode manufacturing equipment also includes a colloid curing component. The gluing mechanism and the colloid curing component are arranged in sequence along the conveying direction of the first conveying mechanism. The first conveying mechanism can convey the first electrode from the gluing mechanism to the colloid curing component. The colloid curing component is used to accelerate the curing of the glue frame.

[0009] Taking into account that the curing speed of the glue will affect the production efficiency of the electrode, the electrode manufacturing equipment of the solid-state battery also includes a colloid curing component. The gluing mechanism and the colloid curing component are arranged in sequence along the conveying direction of the first conveying mechanism. The first conveying mechanism can convey the first electrode from the gluing mechanism to the colloid curing component. The colloid curing component is used to accelerate the curing of the glue frame, that is, shorten the curing time of the glue frame, reduce the waiting time for the curing of the glue frame, and is conducive to improving the production efficiency of the electrode of the solid-state battery.

[0010] According to some embodiments of the present invention, the solid-state battery electrode manufacturing equipment also includes a detection component and a rejection component. The colloid curing component and the detection component are arranged in sequence along the conveying direction of the first conveying mechanism. The first conveying mechanism can convey the first electrode from the colloid curing component to the detection component. The detection component is used to detect the molding effect of the glue frame. The rejection component is adjacent to the first conveying mechanism, and the rejection component is used to move the first electrode out of the first conveying mechanism.

[0011] Taking into account that the molding effect of the glue frame on the first pole piece will affect the production quality of the solid-state battery, the pole piece manufacturing equipment of the solid-state battery also includes a detection component and a rejection component. The first conveying mechanism can convey the first pole piece from the colloid curing component to the detection component. The detection component is used to detect the molding effect of the glue frame on the first pole piece. The rejection component is adjacent to the first conveying mechanism to move the first pole piece that fails the inspection out of the first conveying mechanism. That is, the pole piece manufacturing equipment of the solid-state battery is also provided with a detection function, which is conducive to reducing the risk of quality problems of the solid-state battery caused by poor molding effect of the glue frame, and is conducive to improving the production quality of the pole piece.

[0012] According to some embodiments of the present invention, the first conveying mechanism includes a driving motor, a workbench, a unwinding roller group and a winding roller group. The workbench is located below the gluing mechanism, the unwinding roller group and the winding roller group are respectively located on both sides of the gluing mechanism, and an anti-fouling film is wound between the unwinding roller group and the winding roller group, so that the anti-fouling film bypasses the top of the workbench and passes through the gluing station of the gluing mechanism. The driving motor is connected to the winding roller group for driving the winding roller group to rotate.

[0013] Taking into account that during the process of gluing the first electrode by the gluing mechanism, the glue is likely to overflow around the first electrode and remain on the gluing station, the residual glue will contaminate the first electrode subsequently transported to the gluing station, the electrode manufacturing equipment of the solid-state battery also includes a unwinding roller group, a winding roller group and a workbench, the workbench is located below the gluing station, the unwinding roller group and the winding roller group are respectively located on both sides of the gluing mechanism, and an anti-fouling film is wound between the unwinding roller group and the winding roller group, and under the rotation cooperation of the unwinding roller group and the winding roller group, the anti-fouling film can be wound from the unwinding roller group to the winding roller group. The anti-fouling film is transported by the roller group, and passes around the top of the workbench and through the gluing station of the gluing mechanism. The first electrode can be stacked on the anti-fouling film, and the driving motor drives the winding roller group to rotate, so that the first electrode and the anti-fouling film are transported together to the gluing station of the gluing mechanism for gluing. The anti-fouling film can receive the glue that overflows from the boundary of the first electrode during the gluing process, which is helpful to avoid the problem of glue contaminating the workbench and the first electrode that is subsequently transported. The electrode manufacturing equipment of the solid-state battery is helpful to ensure the production quality of the electrode through the setting of the unwinding roller group and the winding roller group.

[0014] According to some embodiments of the present invention, the electrode manufacturing equipment of the solid-state battery also includes a negative pressure component, which is arranged below the top surface of the workbench. The anti-fouling membrane is provided with multiple air holes. The negative pressure component can generate negative pressure to be used to downwardly absorb the first electrode stacked on the anti-fouling membrane, so that the first electrode, the anti-fouling membrane and the top surface of the workbench are sequentially fitted.

[0015] Taking into account that the first electrode is prone to lateral displacement during the gluing process, which leads to poor molding effect of the glue frame, the electrode manufacturing equipment of the solid-state battery also includes a negative pressure component, which is arranged below the top surface of the workbench, and a plurality of air holes are opened on the anti-fouling membrane. The setting of the air holes allows gas to pass through the anti-fouling membrane. The negative pressure component can generate negative pressure to downwardly adsorb the first electrode stacked on the anti-fouling membrane, so that the first electrode, the anti-fouling membrane and the top surface of the workbench are sequentially fitted. Through the negative pressure attraction method, it is beneficial to improve the stability of the positioning of the first electrode on the workbench, reduce the lateral displacement of the first electrode on the workbench, so as to improve the positioning accuracy of the first electrode and the gluing mechanism, thereby indirectly improving the molding effect of the glue frame on the first electrode, which is beneficial to improving the production quality of the electrode.

[0016] According to some embodiments of the present invention, the solid-state battery pole piece manufacturing equipment further includes a cutting mechanism, which is used to cut the first pole piece before gluing.

[0017] Taking into account that the size of the first pole piece needs to be adjusted according to the design specifications of the solid-state battery, the pole piece manufacturing equipment of the solid-state battery also includes a cutting mechanism, which can be used to cut the first pole piece before gluing, so that the first pole piece forms a set size, so as to facilitate the subsequent gluing operation on the first pole piece.

[0018] According to some embodiments of the present invention, the solid-state battery electrode manufacturing equipment also includes a second conveying mechanism and a flipping mechanism. The first conveying mechanism and the gluing mechanism together constitute a gluing device. Two gluing devices are provided. The flipping mechanism is provided between the two gluing devices. The second conveying mechanism can convey the first electrode between the gluing device and the flipping mechanism. The flipping mechanism is used to flip the first electrode.

[0019] Taking into account that the first electrode piece and the second electrode piece in the solid-state battery are both provided with multiple layers, and the first electrode piece and the second electrode piece need to be staggered and stacked, the electrode piece manufacturing equipment of the solid-state battery also includes a second conveying mechanism and a flipping mechanism. The first conveying mechanism and the gluing mechanism together constitute a gluing device. Two gluing devices are provided, and the flipping mechanism is provided between the two gluing devices. The second conveying mechanism can convey the first electrode piece between the gluing device and the flipping mechanism. One of the gluing devices can realize the gluing treatment of one end face of the first electrode piece, so that one end face of the first electrode piece is formed into a glue frame. Under the conveying action of the second conveying mechanism, the first electrode piece with glue on one end is conveyed to the flipping mechanism, and the flipping mechanism The structure is used to flip the first electrode piece, and under the conveying action of the second conveying mechanism, the flipped first electrode piece is conveyed to another gluing device for gluing, so that the other end face of the first electrode piece is also formed with a glue frame, that is, two glue frames are formed on the two end faces of the first electrode piece respectively. In the step of staggered stacking of multiple first electrode pieces and multiple second electrode pieces, the two ends of the second electrode piece can be connected to the two first electrode pieces respectively and embedded in the two glue frames respectively. The glue frame formed on the first electrode piece can be embedded with the solid electrolyte layer and the second electrode piece, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode piece or the second electrode piece, so as to improve the fitting effect of the solid electrolyte layer with the positive electrode piece and the negative electrode piece.

[0020] According to some embodiments of the present invention, the flipping mechanism includes a rotary drive assembly, an adsorption plate and a transformer. The adsorption plate is provided with multiple suction holes. The transformer is used to communicate with the suction holes to generate negative pressure at the suction holes. The rotary drive assembly is transmission-connected to the adsorption plate to drive the adsorption plate to flip.

[0021] Specifically, the flipping mechanism includes a rotary drive assembly, an adsorption plate and a transformer. Under the conveying action of the second conveying mechanism, the first pole piece is conveyed to the flipping mechanism. The transformer is connected to the suction hole, which can generate negative pressure at the suction hole. The negative pressure is used to achieve the adsorption of the first pole piece by the adsorption plate. The rotary drive assembly is connected to the adsorption plate in a transmission manner to drive the adsorption plate to flip over, thereby achieving the flipping operation of the first pole piece.

[0022] According to the solid-state battery cell manufacturing equipment of the embodiment of the second aspect of the present utility model, the solid-state battery includes a first electrode, a solid-state electrolyte layer and a second electrode, one of the first electrode and the second electrode is a positive electrode, and the other is a negative electrode. The solid-state battery cell manufacturing equipment includes: the solid-state battery electrode manufacturing equipment as shown in any one of the first aspects, the gluing mechanism is used to apply glue to the first electrode so that a glue frame is formed on the first electrode; and the stacking mechanism is used to stack the first electrode, the solid-state electrolyte layer and the second electrode in sequence so that the second electrode is embedded in the glue frame and the solid-state electrolyte layer is sandwiched between the first electrode and the second electrode.

[0023] The solid-state battery cell manufacturing equipment according to the embodiment of the present invention has at least the following beneficial effects: the solid-state battery cell manufacturing equipment includes a lamination mechanism and a solid-state battery pole piece manufacturing equipment as shown in any one of the first aspects, wherein the printing plate has a frame-shaped leakage hole, the glue supply component is used to transport the glue to the upper surface of the printing plate, the first drive component is connected to the scraper transmission to drive the scraper to move back and forth along the surface of the printing plate to achieve uniform coating of the glue, and the glue can pass through the printing plate at the frame-shaped leakage hole to be coated downward, thereby uniformly coating the glue located at the printing plate. The first electrode is coated with glue at the gluing station of the gluing mechanism, so that a glue frame matching the frame-shaped leak hole is formed on the first electrode. The stacking mechanism is used to stack the first electrode, the solid electrolyte layer and the second electrode in sequence, so that the second electrode is embedded in the glue frame and the solid electrolyte layer is sandwiched between the first electrode and the second electrode. The glue frame formed on the first electrode can be embedded with the solid electrolyte layer and the second electrode, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode or the second electrode, so as to improve the fitting effect of the solid electrolyte layer with the positive electrode and the negative electrode.

[0024] According to some embodiments of the present invention, the solid-state battery cell manufacturing equipment also includes a pressing mechanism, which includes a lifting drive assembly, a pressure plate and a support platform. The lifting drive assembly is transmission-connected to the pressure plate to drive the pressure plate closer to or away from the support platform. The pressing mechanism is used to press the stacked first electrode sheet, the solid electrolyte layer and the second electrode sheet.

[0025] Compared with liquid electrolytes that can fully contact the electrode membrane, the solid electrolyte layer of a solid-state battery is difficult to achieve close fit with the electrode membrane. The battery cell manufacturing equipment of the solid-state battery also includes a pressing mechanism. When the stacked first electrode sheet, solid electrolyte layer and second electrode sheet are transported to the supporting platform, the lifting drive component is connected to the pressure plate through a transmission connection to drive the pressure plate closer to the supporting platform. Under the joint pressing action of the pressure plate and the supporting platform, the first electrode sheet, the solid electrolyte layer and the second electrode sheet are pressed to improve the fitting effect of the solid electrolyte layer with the first electrode sheet and the second electrode sheet.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic structural diagram of a solid-state battery electrode manufacturing device according to an embodiment of the present invention;

[0029] Figure 2This is a structural schematic diagram of a glue coating device of a solid-state battery electrode manufacturing equipment according to an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of a solid-state battery electrode manufacturing device applying glue to a first electrode according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of a solid-state battery cell manufacturing device laminating a first pole piece and a second pole piece according to an embodiment of the present invention;

[0032] Figure 5 This is a structural schematic diagram of a glue coating mechanism of a solid-state battery electrode manufacturing device according to an embodiment of the present utility model;

[0033] Figure 6 This is a structural schematic diagram of a first conveying mechanism of a solid-state battery electrode manufacturing device according to an embodiment of the present utility model;

[0034] Figure 7 A schematic diagram of the stacking of an anti-fouling membrane and a first electrode sheet of a first conveying mechanism of an electrode sheet manufacturing apparatus for a solid-state battery according to an embodiment of the present invention;

[0035] Figure 8 This is a structural schematic diagram of a flipping mechanism of a solid-state battery electrode manufacturing device according to an embodiment of the present utility model.

[0036] Figure Number:

[0037] 100, gluing device; 110, gluing mechanism; 111, printing plate; 112, frame-shaped leak hole; 113, scraper; 120, first conveying mechanism; 121, workbench; 122, unwinding roller assembly; 123, winding roller assembly; 124, anti-fouling membrane; 125, vent hole; 130, detection component; 140, negative pressure component;

[0038] 200, flipping mechanism; 210, adsorption plate; 211, suction hole; 220, rotation drive assembly;

[0039] 310, first pole piece; 320, second pole piece; 330, plastic frame; DETAILED DESCRIPTION

[0040] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0041] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0044] Reference Figures 1 to 8 As shown, a solid-state battery electrode sheet manufacturing apparatus according to an embodiment of the present invention is applied to the production of solid-state battery electrodes. The solid-state battery includes a first electrode sheet 310, a solid electrolyte layer, and a second electrode sheet 320. One of the first electrode sheet 310 and the second electrode sheet 320 is a positive electrode sheet, and the other is a negative electrode sheet. The solid-state battery electrode sheet manufacturing apparatus includes a glue coating mechanism 110 and a first conveying mechanism 120.

[0045] Reference Figure 1 、 Figure 3 and Figure 5 As shown, the gluing mechanism 110 is located above the first conveying mechanism 120, and the gluing station of the gluing mechanism 110 is provided on the first conveying mechanism 120. The first conveying mechanism 120 is used to convey the first electrode pieces 310, so that the plurality of first electrode pieces 310 are sequentially conveyed to the gluing station, and the gluing mechanism 110 is used to realize the gluing process of the first electrode pieces 310.

[0046] Reference Figure 1 、 Figure 3 and Figure 5 Specifically, the gluing mechanism 110 includes a printing plate 111, a scraper 113, a first frame, a first vertical drive assembly, a first drive assembly, and a glue supply assembly. The printing plate 111, scraper 113, first drive assembly, and glue supply assembly are all connected to the first frame. The first vertical drive assembly is in driving connection with the first frame to drive the first frame toward or away from the first conveying mechanism 120.

[0047] Reference Figure 1 、 Figure 2 and Figure 3 As shown, under the conveying action of the first conveying mechanism 120, the first electrode piece 310 is conveyed to the bottom of the first frame, that is, conveyed to the gluing station, and then under the driving action of the first upper and lower driving components, the first frame is approached to the first conveying mechanism 120, and under the joint limiting action of the first frame and the first conveying mechanism 120, the first electrode piece 310 is positioned at the gluing station.

[0048] Reference Figure 1 、 Figure 3 and Figure 5 As shown, the printing plate 111 is arranged horizontally and has a frame-shaped leak hole 112. The glue supply assembly includes a glue container and a liquid pump. The glue container is used to hold the glue. The liquid pump is connected to the glue container. Under the variable pressure of the liquid pump, the glue can be dripped onto the upper surface of the printing plate 111. The first drive assembly is in driving connection with the scraper 113 to drive the scraper 113 to move back and forth along the surface of the printing plate 111. The reciprocating movement of the scraper 113 can evenly coat the glue on the upper surface of the printing plate 111. The glue can pass through the printing plate 111 at the frame-shaped leak hole 112 and coat downward, thereby coating the first electrode 310 located at the gluing station of the gluing mechanism 110, so that a glue frame 330 matching the frame-shaped leak hole 112 is formed on the first electrode 310.

[0049] Reference Figure 1 、 Figure 2 and Figure 4 As shown, during the production process of the solid-state battery, the first electrode 310 needs to be stacked in sequence with the solid electrolyte layer and the second electrode 320. One of the first electrode 310 and the second electrode 320 is a positive electrode and the other is a negative electrode. The rubber frame 330 formed on the first electrode 310 can be embedded with the solid electrolyte layer and the second electrode 320, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode 310 or the second electrode 320, so as to improve the fitting effect of the solid electrolyte layer with the positive electrode and the negative electrode.

[0050] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the electrode manufacturing equipment of the solid-state battery is capable of applying glue to the first electrode 310, so that a glue frame 330 is formed on the first electrode 310, so that the glue frame 330 formed on the first electrode 310 can limit the lateral displacement of the solid electrolyte layer relative to the first electrode 310 or the second electrode 320 during the subsequent battery cell manufacturing process, which is beneficial to improving the fitting effect of the solid electrolyte layer with the positive electrode and the negative electrode.

[0051] Specifically, the first up-down drive assembly and the first drive assembly can both adopt linear reciprocating drive mechanisms such as screw slider mechanism, linear module, oil cylinder, air cylinder, etc. The printing plate 111 can adopt the molding principle of screen printing plate to form the frame-shaped leak hole 112.

[0052] Reference Figure 1 、 Figure 2 and Figure 3 As shown, it is understandable that, considering that the curing speed of the glue will affect the production efficiency of the pole piece, the pole piece manufacturing equipment of the solid-state battery also includes a colloid curing component.

[0053] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the gluing mechanism 110 and the colloid curing assembly are arranged in sequence along the conveying direction of the first conveying mechanism 120. The first conveying mechanism 120 can convey the first electrode 310 from the gluing mechanism 110 to the colloid curing assembly. The colloid curing assembly is used to accelerate the curing of the glue frame 330, that is, shorten the curing time of the glue frame 330, reduce the waiting time for the curing of the glue frame 330, and help improve the production efficiency of the electrode of the solid-state battery.

[0054] Reference Figure 1 、 Figure 2 and Figure 3 As shown, specifically, the colloid curing component includes a heater, which is used to provide heat to the first electrode 310 on the first conveying mechanism 120, that is, the colloid curing component increases the curing speed of the glue frame 330 on the first electrode 310 by heating and drying, which is beneficial to reducing the waiting time for curing of the glue frame 330 and improving the electrode production efficiency of the solid-state battery.

[0055] It should be understood that in some other embodiments, the colloid curing assembly also includes a fan, with the air outlet of the fan being arranged toward the first conveying mechanism 120. The operation of the fan is conducive to accelerating the air flow speed at the first conveying mechanism 120, so as to accelerate the curing speed of the glue frame 330 of the first electrode 310 located on the first conveying mechanism 120, which is conducive to reducing the waiting time for the curing of the glue frame 330 and improving the electrode production efficiency of the solid-state battery.

[0056] It should be understood that in some other embodiments, for light-sensitive glue, the colloid curing component may include a specific light source, which accelerates the curing of the colloid through irradiation with the specific light source, thereby reducing the waiting time for curing of the glue frame 330 and improving the production efficiency of the pole pieces of the solid-state battery.

[0057] Reference Figure 1 、 Figure 2 and Figure 3As shown, it is understandable that in this embodiment, considering that the molding effect of the plastic frame 330 on the first pole piece 310 will affect the production quality of the solid-state battery, the pole piece manufacturing equipment of the solid-state battery also includes a detection component 130 and a rejection component.

[0058] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the colloid curing component and the detection component 130 are arranged in sequence along the conveying direction of the first conveying mechanism 120. The first conveying mechanism 120 can convey the first electrode 310 from the colloid curing component to the detection component 130. The detection component 130 is used to detect the molding effect of the glue frame 330. The rejection component is adjacent to the first conveying mechanism 120, and the rejection component is used to move the first electrode 310 out of the first conveying mechanism 120.

[0059] Reference Figure 1 、 Figure 2 and Figure 3 As shown, specifically, the detection component 130 can be a camera module, which photographs the first electrode 310 on the first conveying mechanism 120 through the camera module, and compares the photographed pattern with the set pattern to determine whether the molding effect of the rubber frame 330 on the first electrode 310 is qualified. If the deviation value is less than the first set threshold, the corresponding first electrode 310 is determined to be qualified. If the deviation value is greater than or equal to the second set threshold, the corresponding first electrode 310 is determined to be unqualified.

[0060] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the rejection assembly is located adjacent to the first conveyor cabinet. The rejection assembly can be a multi-axis robot. When the inspection assembly 130 determines that the specified first electrode piece 310 is unqualified, the rejection assembly can remove the unqualified first electrode piece 310 from the first conveyor mechanism 120. In other words, the solid-state battery electrode piece manufacturing equipment also has an inspection function, which helps reduce the risk of solid-state battery quality problems caused by poor molding of the plastic frame 330, thereby improving the production quality of the electrode pieces.

[0061] It should be noted that the detection principle and structure of the detection component 130 belong to the existing technology and will not be described in detail here.

[0062] Reference Figure 2 、 Figure 3 and Figure 6 As shown, it is understandable that, considering that during the process of gluing the first electrode piece 310 by the gluing mechanism 110, the glue liquid easily overflows around the first electrode piece 310 and remains on the gluing station, the residual glue liquid may contaminate the first electrode piece 310 subsequently transported to the gluing station. The first conveying mechanism 120 includes a drive motor, a workbench 121, an unwinding roller group 122, and a winding roller group 123.

[0063] Reference Figure 2 、 Figure 3 and Figure 6 As shown, the unwinding roller group 122 includes a plurality of first rollers parallel to each other, and the winding roller group 123 includes a plurality of second rollers parallel to each other. An anti-fouling film 124 is wound between the unwinding roller group 122 and the winding roller group 123. The anti-fouling film 124 passes around the plurality of first rollers and the plurality of second rollers in sequence, so that the anti-fouling film 124 passes around the top of the workbench 121 and passes through the gluing station of the gluing mechanism 110. The driving motor is connected to the winding roller group 123 for driving the winding roller group 123 to rotate, and under the connection action of the anti-fouling film 124, the unwinding roller group 122 is driven to rotate.

[0064] Reference Figure 2 、 Figure 3 and Figure 6 As shown, the workbench 121 is located below the gluing station, the unwinding roller group 122 and the winding roller group 123 are respectively located on both sides of the gluing mechanism 110, the unwinding roller group 122 and the winding roller group 123 are respectively located on both sides of the workbench 121, and an anti-fouling film 124 is wound between the unwinding roller group 122 and the winding roller group 123. With the rotation cooperation of the unwinding roller group 122 and the winding roller group 123, the anti-fouling film 124 can be transported from the unwinding roller group 122 to the winding roller group 123, and the anti-fouling film 124 bypasses the top of the workbench 121 and passes through the gluing station of the gluing mechanism 110.

[0065] Reference Figure 2 、 Figure 3 and Figure 6 As shown, the first pole piece 310 can be stacked on top of the anti-fouling film 124, and the driving motor drives the winding roller group 123 to rotate, so that the first pole piece 310 and the anti-fouling film 124 are jointly transported to the gluing station of the gluing mechanism 110 for gluing. The anti-fouling film 124 can receive the glue that overflows from the edge of the first pole piece 310 during the gluing process, which is beneficial to avoid the problem of glue contaminating the workbench 121 and the subsequently transported first pole piece 310. The pole piece manufacturing equipment of the solid-state battery is beneficial to ensure the production quality of the pole piece through the arrangement of the unwinding roller group 122 and the winding roller group 123.

[0066] Reference Figure 2 、 Figure 3 and Figure 7As shown, the width of the anti-fouling membrane 124 is greater than the width of the first electrode 310 along the width direction of the first conveying mechanism 120, and the length of the anti-fouling membrane 124 is greater than the length of the first electrode 310 along the length direction of the first conveying mechanism 120, so that when the first electrode 310 is placed on the anti-fouling membrane 124, the anti-fouling membrane 124 can fully surround the first electrode 310, thereby avoiding the problem of overflow of the glue dyeing workbench 121 and the subsequent conveying of the first electrode 310.

[0067] It should be noted that the anti-fouling film 124 can be a PET (polyethylene terephthalate) film, a PP (polypropylene) film, or the like.

[0068] Reference Figure 1 、 Figure 3 and Figure 7 As shown, it is understandable that, considering that the first pole piece 310 is prone to lateral displacement during the gluing process, which leads to the problem of poor molding effect of the glue frame 330, the pole piece manufacturing equipment of the solid-state battery also includes a negative pressure component 140, and the negative pressure component 140 is arranged below the top surface of the workbench 121. The anti-fouling membrane 124 is provided with a plurality of air holes 125. The negative pressure component 140 can generate negative pressure to be used for downward adsorption of the first pole piece 310 stacked on the anti-fouling membrane 124, so that the first pole piece 310, the anti-fouling membrane 124 and the top surface of the workbench 121 are fitted in sequence.

[0069] Reference Figure 1 、 Figure 3 and Figure 7 As shown, the air vents 125 are provided to allow gas to pass through the anti-fouling membrane 124, and the negative pressure assembly 140 can generate negative pressure to downwardly absorb the first electrode piece 310 stacked on the anti-fouling membrane 124, so that the first electrode piece 310, the anti-fouling membrane 124 and the top surface of the workbench 121 are sequentially fitted together. By means of negative pressure attraction, it is beneficial to improve the stability of the positioning of the first electrode piece 310 on the workbench 121, and to reduce the lateral displacement of the first electrode piece 310 on the workbench 121, so as to improve the positioning accuracy of the first electrode piece 310 and the gluing mechanism 110, thereby indirectly improving the molding effect of the glue frame 330 on the first electrode piece 310, which is beneficial to improving the production quality of the electrode piece.

[0070] Reference Figure 1 、 Figure 3 and Figure 7 As shown, specifically, the negative pressure component 140 may include a fan, which is arranged below the workbench 121. When the fan is operated, a downward attraction force can be generated at the workbench 121 to be used for downwardly adsorbing the first electrode piece 310 stacked on the anti-fouling membrane 124, so that the first electrode piece 310, the anti-fouling membrane 124 and the top surface of the workbench 121 are sequentially fitted.

[0071] The operation of the negative pressure component 140 can cooperate with the first conveying mechanism 120 and the gluing mechanism 110. For example, when the first conveying mechanism 120 is operating, the negative pressure component 140 suspends operation; when the first conveying mechanism 120 stops operating and the gluing mechanism 110 is operating, the negative pressure component 140 operates, thereby realizing gluing of the first electrode 310.

[0072] It should be noted that the diameter of the air hole 125 needs to be smaller than the outer diameter of the first pole piece 310 , so as to avoid the problem of the first pole piece 310 passing through the air hole 125 .

[0073] Reference Figure 1 、 Figure 3 and Figure 7 As shown, a plurality of air holes 125 are arranged on the anti-fouling membrane 124 along the membrane plane. The specific arrangement and shape of the plurality of air holes 125 can be set according to actual needs and are not limited here.

[0074] It is understandable that, considering that the size of the first pole piece 310 needs to be adjusted according to the design specifications of the solid-state battery, the pole piece manufacturing equipment of the solid-state battery also includes a cutting mechanism, which is used to cut the first pole piece 310 before gluing, so that the first pole piece 310 forms a set size, so as to facilitate the subsequent gluing process of the first pole piece 310.

[0075] Specifically, the cutting mechanism includes a second upper and lower drive assembly and a cutter. The second upper and lower drive assembly is connected to the cutter to drive the cutter to move closer to or away from the first pole piece 310. Through the contact between the first cutter and the first pole piece 310, the size of the first pole piece 310 is cut.

[0076] It should be noted that the second up and down driving assembly can be a linear driving mechanism such as a screw slider mechanism, an oil cylinder, an air cylinder, a linear module, etc.

[0077] Reference Figure 1 、 Figure 4 and Figure 8As shown, it can be understood that, considering that there are multiple first pole pieces 310 and second pole pieces 320 in the solid-state battery, and the first pole pieces 310 and the second pole pieces 320 need to be staggered and stacked, the pole piece manufacturing equipment of the solid-state battery also includes a second conveying mechanism and a flipping mechanism 200, and the gluing mechanism 110, the first conveying mechanism 120, the colloid curing component, the detection component 130 and the rejection component together constitute a gluing device 100. Two gluing devices 100 are provided, and the flipping mechanism 200 is provided between the two gluing devices 100, and the flipping mechanism 200 is used to flip the first pole piece 310. The second conveying mechanism can convey the first pole piece 310 between the gluing device 100 and the flipping mechanism 200, that is, the second conveying mechanism can convey the first pole piece 310 from one of the gluing devices 100 to the flipping mechanism 200, and can also convey the first pole piece 310 from the flipping mechanism 200 to the other gluing device 100.

[0078] Reference Figure 1 、 Figure 4 and Figure 8 As shown, one of the gluing devices 100 can realize the gluing process on one end surface of the first electrode 310, so that one end surface of the first electrode 310 is formed into a glue frame 330. Under the conveying action of the second conveying mechanism, the first electrode 310 with one end coated with glue is conveyed to the flipping mechanism 200. The flipping mechanism 200 is used to flip the first electrode 310. Under the conveying action of the second conveying mechanism, the flipped first electrode 310 is conveyed to another gluing device 100 for gluing, so that the other end surface of the first electrode 310 is also formed into a glue frame 330. That is, two rubber frames 330 are respectively formed on the two end surfaces of the first electrode piece 310. In the step of alternating and stacking multiple first electrode pieces 310 and multiple second electrode pieces 320, the two ends of the second electrode piece 320 can be respectively connected to the two first electrode pieces 310 and embedded in the two rubber frames 330. The rubber frames 330 formed on the first electrode piece 310 can be embedded with the solid electrolyte layer and the second electrode piece 320, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode piece 310 or the second electrode piece 320, so as to improve the bonding effect between the solid electrolyte layer and the positive electrode piece and the negative electrode piece.

[0079] It should be noted that the second conveying mechanism may be a multi-axis manipulator, which can grasp the first electrode 310 by means of negative pressure suction.

[0080] It should be understood that in another embodiment, the second conveying mechanism may include a first linear module and a second linear module, the conveying direction of the first linear module is arranged at right angles to the conveying direction of the second linear module, and the first electrode 310 is grasped by negative pressure suction.

[0081] Reference Figure 1 、 Figure 4 and Figure 8 As shown, it can be understood that in this embodiment, specifically, the flipping mechanism 200 includes a rotary drive component 220, an adsorption plate 210 and a transformer. Under the conveying action of the second conveying mechanism, the first pole piece 310 is conveyed to the flipping mechanism 200. The transformer is connected to the suction hole 211, which can generate negative pressure at the suction hole 211. The negative pressure is used to achieve the attraction of the first pole piece 310 by the adsorption plate 210. The rotary drive component 220 is connected to the adsorption plate 210 in a transmission manner to drive the adsorption plate 210 to flip over, so as to achieve the flipping operation of the first pole piece 310.

[0082] Specifically, the transformer can be an air pump of various specifications, and the rotation drive assembly 220 can be a forward and reverse motor, which drives the adsorption plate 210 to flip forward and reverse, thereby realizing the flipping and resetting of the first pole piece 310.

[0083] An embodiment of the present invention provides a solid-state battery cell manufacturing device, comprising: a stacking mechanism and a solid-state battery pole piece manufacturing device as shown in any of the above embodiments.

[0084] In the solid-state battery electrode manufacturing equipment shown in any of the above embodiments, the gluing mechanism 110 is used to apply glue to the first electrode 310, so that a glue frame 330 is formed on the first electrode 310. The printing plate 111 has a frame-shaped leak hole 112, and the glue supply assembly is used to deliver glue to the upper surface of the printing plate 111. The first drive assembly is in transmission connection with the scraper 113 to drive the scraper 113 to move back and forth along the surface of the printing plate 111 to achieve uniform coating of the glue. The glue can pass through the printing plate 111 at the frame-shaped leak hole 112 and be coated downward, thereby applying glue to the first electrode 310 located at the gluing station of the gluing mechanism 110, so that a glue frame 330 matching the frame-shaped leak hole 112 is formed on the first electrode 310.

[0085] The stacking mechanism is used to stack the first electrode 310, the solid electrolyte layer and the second electrode 320 in sequence, so that the second electrode 320 is embedded in the rubber frame 330 and the solid electrolyte layer is sandwiched between the first electrode 310 and the second electrode 320. The rubber frame 330 formed on the first electrode 310 can be embedded with the solid electrolyte layer and the second electrode 320, which is beneficial to limit the lateral displacement of the solid electrolyte layer relative to the first electrode 310 or the second electrode 320, so as to improve the fitting effect of the solid electrolyte layer with the positive electrode and the negative electrode.

[0086] It should be noted that the lamination mechanism may be a multi-axis manipulator, so as to achieve lamination of the first pole piece 310 , the solid electrolyte layer and the second pole piece 320 .

[0087] It is understandable that compared with liquid electrolytes that can fully contact the electrode membrane, the solid electrolyte layer of a solid-state battery is difficult to achieve close fit with the electrode membrane. The cell manufacturing equipment of the solid-state battery also includes a pressing mechanism, which includes a lifting drive assembly, a pressure plate and a support platform.

[0088] The lifting drive assembly is in transmission connection with the pressing plate to drive the pressing plate toward or away from the supporting platform. The pressing mechanism is used to press the stacked first pole piece 310 , the solid electrolyte layer and the second pole piece 320 .

[0089] When the stacked first electrode 310, solid electrolyte layer and second electrode 320 are transported to the supporting platform, the lifting drive assembly is connected to the pressure plate through a transmission connection to drive the pressure plate closer to the supporting platform. Under the joint pressing action of the pressure plate and the supporting platform, the first electrode 310, solid electrolyte layer and second electrode 320 are pressed together to improve the bonding effect of the solid electrolyte layer with the first electrode 310 and the second electrode 320, and achieve close bonding between the solid electrolyte layer and the first electrode 310 and the second electrode 320.

[0090] The lifting drive assembly can be a linear drive mechanism such as a screw slider mechanism, an air cylinder, and an oil cylinder.

[0091] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A solid-state battery pole piece manufacturing device, characterized in that: The solid-state battery includes a first pole piece, and the pole piece manufacturing equipment of the solid-state battery includes: The glue coating mechanism comprises a printing plate, a scraper, a first driving component and a glue supply component, wherein the printing plate has a frame-shaped leaking hole, the glue supply component is used to transport glue to the surface of the printing plate, the first driving component is drivingly connected to the scraper to drive the scraper to reciprocate along the surface of the printing plate, and the glue coating mechanism is used to coat the first pole piece with glue so that a glue frame matching the frame-shaped leaking hole is formed on the first pole piece; The first conveying mechanism is located below the glue coating mechanism and is used for conveying the first pole piece.

2. The solid-state battery electrode manufacturing equipment according to claim 1, characterized in that: It also includes a colloid curing component. The gluing mechanism and the colloid curing component are arranged in sequence along the conveying direction of the first conveying mechanism. The first conveying mechanism can convey the first pole piece from the gluing mechanism to the colloid curing component. The colloid curing component is used to accelerate the curing of the glue frame.

3. The solid-state battery pole piece manufacturing equipment according to claim 2, characterized in that: It also includes a detection component and a rejection component. The colloid curing component and the detection component are arranged in sequence along the conveying direction of the first conveying mechanism. The first conveying mechanism can convey the first pole piece from the colloid curing component to the detection component. The detection component is used to detect the molding effect of the glue frame. The rejection component is adjacent to the first conveying mechanism, and the rejection component is used to move the first pole piece out of the first conveying mechanism.

4. The solid-state battery pole piece manufacturing equipment according to claim 1, characterized in that: The first conveying mechanism includes a driving motor, a workbench, a unwinding roller group and a winding roller group. The workbench is located below the gluing mechanism, and the unwinding roller group and the winding roller group are respectively located on both sides of the gluing mechanism. An anti-fouling film is wound between the unwinding roller group and the winding roller group so that the anti-fouling film bypasses the top of the workbench and passes through the gluing station of the gluing mechanism. The driving motor is connected to the winding roller group for driving the winding roller group to rotate.

5. The solid-state battery pole piece manufacturing equipment according to claim 4, characterized in that: It also includes a negative pressure component, which is arranged below the top surface of the workbench. The anti-fouling membrane is provided with a plurality of air holes. The negative pressure component can generate negative pressure to absorb the first pole piece stacked on the anti-fouling membrane downward, so that the first pole piece, the anti-fouling membrane and the top surface of the workbench are sequentially fitted.

6. The solid-state battery pole piece manufacturing equipment according to claim 1, characterized in that: It also includes a cutting mechanism, which is used to cut the first pole piece before gluing.

7. The solid-state battery pole piece manufacturing equipment according to any one of claims 1 to 6, characterized in that: It also includes a second conveying mechanism and a flipping mechanism. The first conveying mechanism and the gluing mechanism together constitute a gluing device. Two gluing devices are provided. The flipping mechanism is provided between the two gluing devices. The second conveying mechanism can convey the first pole piece between the gluing device and the flipping mechanism. The flipping mechanism is used to flip the first pole piece.

8. The solid-state battery pole piece manufacturing equipment according to claim 7, characterized in that: The flipping mechanism includes a rotating drive assembly, an adsorption plate and a transformer. The adsorption plate is provided with a plurality of suction holes. The transformer is used to communicate with the suction holes to generate negative pressure at the suction holes. The rotating drive assembly is transmission-connected to the adsorption plate to drive the adsorption plate to flip.

9. Solid-state battery cell manufacturing equipment, characterized in that: The solid-state battery comprises a first pole piece, a solid electrolyte layer and a second pole piece, one of the first pole piece and the second pole piece is a positive pole piece, and the other is a negative pole piece, and the cell manufacturing equipment of the solid-state battery comprises: The solid-state battery pole piece manufacturing equipment according to any one of claims 1 to 8, wherein the glue coating mechanism is used to coat the first pole piece with glue so that a glue frame is formed on the first pole piece; The lamination mechanism is used to stack the first pole piece, the solid electrolyte layer and the second pole piece in sequence, so that the second pole piece is embedded in the rubber frame and the solid electrolyte layer is sandwiched between the first pole piece and the second pole piece.

10. The solid-state battery cell manufacturing equipment according to claim 9, characterized in that: It also includes a pressing mechanism, which includes a lifting drive component, a pressing plate and a supporting platform. The lifting drive component is transmission-connected to the pressing plate to drive the pressing plate closer to or away from the supporting platform. The pressing mechanism is used to press the first pole piece, the solid electrolyte layer and the second pole piece after stacking.

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