Solid-state battery production apparatus

Abstract

The application relates to a solid-state battery production equipment, which comprises a tabletting device and a laminating device. The laminating device comprises an electrode tablet feeding assembly located downstream of the tabletting device, a laminating assembly located downstream of the electrode tablet feeding assembly, at least one laminating station group located downstream of the laminating assembly, and a laminating discharging assembly located downstream of the laminating station group. Each laminating station group comprises at least one laminating station. In addition, the application also comprises a rubber coating device located downstream of the laminating discharging assembly, a hot pressing device located downstream of the rubber coating device, and an offline device located downstream of the hot pressing device. The technical scheme of the application integrates the tabletting process, the laminating process, the rubber coating process, the hot pressing process and the offline process, realizes the whole process of solid-state battery preparation, smoothly connects each process, saves manpower, and greatly improves the production efficiency of the solid-state battery.

Description

Technical Field

[0001] This application relates to the field of solid-state battery manufacturing equipment technology, specifically to a solid-state battery production equipment. Background Technology

[0002] With the continuous advancement of technology and the increasing demands of people, battery technology is also constantly evolving. Among them, solid-state batteries are a new type of battery technology that uses a solid electrolyte instead of a liquid electrolyte. Compared with traditional liquid batteries, solid-state batteries have advantages such as higher energy density, faster charging speed, better safety performance, and longer lifespan, and have attracted widespread attention.

[0003] In existing technologies, solid-state batteries generally include a positive electrode, a negative electrode, a solid electrolyte, and a frame. The process requires first cutting the positive and negative electrode sheets, solid electrolyte, and frame into sheets, then stacking these sheets on a stacking table, followed by encapsulation and hot-pressing to obtain the solid-state battery. Currently, there is a lack of complete solid-state battery manufacturing equipment, and the coordination of each step requires manual intervention, resulting in low production efficiency and an inability to meet capacity demands. Utility Model Content

[0004] Therefore, it is necessary to provide a solid-state battery production equipment to address the problem of low production efficiency of solid-state batteries.

[0005] This application provides a solid-state battery production apparatus, comprising:

[0006] Film-making apparatus;

[0007] A wafer stacking apparatus includes an electrode loading assembly located downstream of the wafer forming apparatus, a wafer stacking assembly located downstream of the electrode loading assembly, at least one stacking stage group located downstream of the stacking assembly, and a wafer unloading assembly located downstream of the stacking stage group, each of the stacking stage groups including at least one stacking stage; and

[0008] The coating device is located downstream of the lamination feeding assembly, the hot pressing device is located downstream of the coating device, and the unloading device is located downstream of the hot pressing device.

[0009] In some embodiments, the stacking table assembly is movable between the stacking assembly and the stacking unloading assembly.

[0010] In some embodiments, each stacking stage group includes a first stacking stage and a second stacking stage, the first stacking stage and the second stacking stage being movable in the same direction between the stacking assembly and the stacking unloading assembly, wherein the first stacking stage is located at the stacking assembly and the second stacking stage is located at the stacking unloading assembly.

[0011] In some embodiments, the stacking and unloading assembly includes a first stacking and unloading mechanism and a second stacking and unloading mechanism, wherein the first stacking table is movable between the stacking assembly and the first stacking and unloading mechanism, and the second stacking table is movable between the stacking assembly and the second stacking and unloading mechanism.

[0012] In some embodiments, the first stacking stage and the second stacking stage are capable of moving synchronously between the stacking assembly and the stacking unloading assembly.

[0013] In some embodiments, the stacking and unloading assembly further includes a stacking and unloading conveyor belt, the overmolding device is located downstream of the stacking and unloading conveyor belt, the first stacking and unloading mechanism is used to transfer the sheet from the first stacking table to the stacking and unloading conveyor belt, and the second stacking and unloading mechanism is used to transfer the sheet from the second stacking table to the stacking and unloading conveyor belt.

[0014] In some embodiments, the stacking assembly includes a straightening table and a stacking robot, the stacking robot being used to transfer the sheet material on the straightening table to the stacking table assembly.

[0015] In some embodiments, the correction stage includes a first correction stage and a second correction stage, the first correction stage and the second correction stage are spaced apart along a first direction and arranged on both sides of the stacking stage group.

[0016] In some embodiments, both the first correction stage and the second correction stage are movable along the first direction.

[0017] In some embodiments, the stacking robot includes a first stacking robot and a second stacking robot, both of which are capable of moving between the correction table and the stacking table group;

[0018] When the first stacking robot is located in the stacking table group, the second stacking robot is located in the correction table.

[0019] In some embodiments, the electrode feeding assembly includes a first feeding conveyor belt, a second feeding conveyor belt, a first feeding mechanism, and a second feeding mechanism. The first feeding conveyor belt and the second feeding conveyor belt are spaced apart along the first direction. The alignment table and the stacking table group are located between the first feeding conveyor belt and the second feeding conveyor belt. The first feeding mechanism is used to transfer the electrode sheets on the first feeding conveyor belt to the first alignment table. The second feeding mechanism is used to transfer the electrode sheets on the second feeding conveyor belt to the second alignment table.

[0020] In some embodiments, the stacking device further includes a first feeding component and a second feeding component, wherein the first feeding mechanism is further configured to transfer the sheet on the first feeding component to the first alignment table, and the second feeding mechanism is further configured to transfer the sheet on the second feeding component to the second alignment table.

[0021] In some embodiments, the first feeding component is a feeding clip used to provide a protective film.

[0022] In some embodiments, the second feeding component is a feeding clip for providing negative electrode sheets, the first feeding conveyor belt is for providing positive electrode sheets, and the second feeding conveyor belt is for providing negative electrode sheets with composite frames.

[0023] In some embodiments, a plurality of stacking stage groups are arranged side by side along a second direction, and each stacking stage group includes a plurality of stacking stages arranged sequentially along the second direction, the second direction intersecting the first direction;

[0024] All of the stacking tables are arranged along the first direction between the first feeding conveyor belt and the second feeding conveyor belt, with the first direction intersecting the second direction.

[0025] In some embodiments, the stacking device further includes a first recycling bin and a second recycling bin, and the stacking robot is further configured to transfer the sheet material on the first alignment table to the first recycling bin, and the stacking robot is further configured to transfer the sheet material on the second alignment table to the second recycling bin.

[0026] In some embodiments, the electrode fabrication apparatus includes a positive electrode fabrication apparatus and a negative electrode fabrication apparatus, and the electrode feeding assembly includes a first feeding conveyor belt and a second feeding conveyor belt, wherein the first feeding conveyor belt is located downstream of the positive electrode fabrication apparatus and the second feeding conveyor belt is located downstream of the negative electrode fabrication apparatus.

[0027] In some embodiments, the sheet-making apparatus includes a sheet-making mechanism, which includes an electrode cutting assembly and a cutting assembly, the cutting assembly being disposed downstream of the electrode cutting assembly; the electrode feeding assembly is disposed downstream of the cutting assembly.

[0028] In some embodiments, one of the sheet-making apparatuses further includes a composite mechanism, the composite mechanism including an electrode unwinding assembly, a frame unwinding assembly, and a strip composite assembly, wherein the electrode unwinding assembly and the frame unwinding assembly are both arranged upstream of the strip composite assembly, and the tab cutting assembly is arranged downstream of the strip composite assembly.

[0029] In some embodiments, the composite mechanism further includes a release film winding assembly disposed between the downstream of the tape composite assembly and the upstream of the tab cutting assembly.

[0030] In some embodiments, the film-making mechanism further includes a first visual inspection component and a second visual inspection component, which are used to perform visual inspection on both sides of the strip passing between the downstream of the release film winding component and the upstream of the tab cutting component.

[0031] In some embodiments, the film-making mechanism further includes a feeding assembly, a third vision inspection assembly, and a fourth vision inspection assembly. The feeding assembly is arranged downstream of the cutting assembly, and the third and fourth vision inspection assemblies are both arranged on the feeding path of the feeding assembly.

[0032] In some embodiments, the sheet-making mechanism further includes a third dust removal component arranged on the conveying path of the conveying component for removing dust from the electrode sheet material on the conveying component.

[0033] In some embodiments, the coating apparatus includes a coating table and a coating assembly, with at least one of the coating assemblies arranged around the periphery of the coating table;

[0034] The coating station is located downstream of the stacking and unloading assembly and upstream of the hot pressing device.

[0035] In some embodiments, the hot pressing apparatus includes a hot pressing buffer assembly, a hot pressing feeding assembly, a hot pressing table, and a hot pressing unloading assembly;

[0036] The hot press buffer assembly is located upstream of the overmolding device, the hot press feeding assembly is located downstream of the hot press buffer assembly, the hot press feeding assembly is located upstream of the hot press table, the hot press table is located upstream of the hot press unloading assembly, and the hot press unloading assembly is located upstream of the unloading device.

[0037] In some embodiments, at least two of the hot press tables are arranged side by side along a first direction, and the hot press loading assembly and the hot press unloading assembly are arranged on both sides of all the hot press tables along a second direction, wherein the first direction and the second direction intersect.

[0038] In some embodiments, the solid-state battery production equipment further includes a testing device, a labeling device, and a recycling device. The testing device is arranged downstream of the hot-pressing device, the recycling device and the labeling device are both arranged downstream of the testing device, and the off-line device is arranged downstream of the labeling device.

[0039] The aforementioned solid-state battery production equipment integrates the wafer fabrication process, wafer stacking process, encapsulation process, hot pressing process, and production line completion process, realizing the entire process of solid-state battery preparation. The processes are seamlessly connected, saving manpower and greatly improving the production efficiency of solid-state batteries. Attached Figure Description

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0041] Figure 1 This is a schematic diagram of the composition of a solid-state battery production equipment according to some embodiments.

[0042] Figure 2 This is a schematic diagram of the stacking device according to some embodiments.

[0043] Figure 3 This is a schematic diagram of the structure of a film-making apparatus according to some embodiments.

[0044] Figure 4 This is a schematic diagram of the composition of a composite mechanism in some embodiments.

[0045] Figure 5 This is a schematic diagram of the composition of the film-making mechanism in some embodiments.

[0046] Figure 6 for Figure 3 The illustrated film-making apparatus shows the evolution of the feed strip during the film-making process.

[0047] Figure 7 This is a schematic diagram of some components of a solid-state battery production equipment according to some embodiments.

[0048] Figure 8 This is a production flow diagram of a solid-state battery manufacturing equipment according to some embodiments.

[0049] The reference numerals in the detailed embodiments are as follows:

[0050] 1000. Solid-state battery production equipment;

[0051] 100. Electrode forming apparatus; 100A. Positive electrode electrode forming apparatus; 100B. Negative electrode electrode forming apparatus; A. Electrode sheet material strip; B. Frame material strip; C. Composite material strip; D. Electrode sheet material; B1. Release film; 10. Composite mechanism; 11. Electrode sheet unwinding assembly; 12. Frame unwinding assembly; 13. Material strip composite assembly; 131. First composite roller; 133. Second composite roller; 135. Adjustment assembly; 14. Release film winding assembly; 141. Release film winding component; 142. First guide roller; 143. First tension adjustment assembly; 1431. Second guide roller; 1433. Third guide roller; 1432. 1. Motion roller; 161. Fourth guide roller; 163. First belt connecting assembly; 165. Fifth guide roller; 17. Correction assembly; 18. Second tension adjustment assembly; 181. Sixth guide roller; 185. Seventh guide roller; 183. Second motion roller; 191. First dust removal assembly; 192. Second dust removal assembly; 20. Sheet making mechanism; 21. Electrode cutting assembly; 22. Cutting assembly; 23. Main drive conveyor assembly; 24. First vision inspection assembly; 25. Second vision inspection assembly; 26. Material conveying assembly; 27. Third dust removal assembly; 28. Third vision inspection assembly; 29. ​​Fourth vision inspection assembly;

[0052] 200. Stacking device; X, first direction; Y, second direction; 210. Electrode feeding assembly; 211. First feeding conveyor belt; 212. Second feeding conveyor belt; 213. First feeding mechanism; 214. Second feeding mechanism; 220. Stacking assembly; 221. Correction table; 221a. First correction table; 221b. Second correction table; 222. Stacking robot; 230. Stacking table group; 231. Stacking table; d1. Stacking feeding position; d2. Stacking unloading position; 231a. First stacking table; 231b. Second stacking table; 240. Stacking unloading assembly; 241. First stacking unloading mechanism; 242. Second stacking unloading mechanism; 243. Stacking unloading conveyor belt; 251. First feeding assembly; 252. Second feeding assembly; 261. First recycling bin; 262. Second recycling bin;

[0053] 300. Coating device; 310. Coating table; 320. Coating assembly; 400. Hot pressing device; 410. Hot pressing buffer assembly; 420. Hot pressing feeding assembly; 430. Hot pressing table; 440. Hot pressing unloading assembly; 401. Rotating robot; 500. Offline device; 600. Testing device; 700. Labeling device; 800. Recycling device. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that, where they appear, the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Furthermore, where applicable, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] It should be noted that, if an element is described as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is described as "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0060] Please refer to Figure 1 and combined Figure 2 Understood, the solid-state battery production equipment 1000 provided in this application embodiment includes a wafer forming apparatus 100 and a stacking apparatus 200. The stacking apparatus 200 includes an electrode feeding assembly 210 downstream of the wafer forming apparatus 100, a stacking assembly 220 downstream of the electrode feeding assembly 210, at least one stacking stage group 230 downstream of the stacking assembly 220, and a stacking unloading assembly 240 downstream of the stacking stage group 230. Each stacking stage group 230 includes at least one stacking stage 231. The solid-state battery production equipment 1000 also includes an encapsulation apparatus 300 downstream of the stacking unloading assembly 240, a hot pressing apparatus 400 downstream of the encapsulation apparatus 300, and a production line unloading apparatus 500 downstream of the hot pressing apparatus 400.

[0061] The electrode forming apparatus 100 is used to slice positive or negative electrode strips to obtain positive or negative electrode sheets. The electrode loading assembly 210 is used to receive the positive and negative electrode sheets (both referred to as sheets) produced by the electrode forming apparatus 100. The stacking platform assembly 230 includes at least one stacking platform 231, which provides a stacking platform. The stacking assembly 220 is used to transfer the sheets from the electrode loading assembly 210 to the stacking platform 231 for stacking. The stack unloading assembly 240 is used to transfer the stacked structure formed on the stacking platform 231 and convey it to the downstream encapsulation apparatus 300. The encapsulation apparatus 300 is used to coat the outside of the stacked structure with an encapsulation film (i.e., encapsulation treatment). The hot pressing apparatus 400 is used to hot press the encapsulated stacked structure to obtain a battery. The unloading apparatus 500 is used to unload the battery.

[0062] The aforementioned solid-state battery fabrication apparatus integrates the wafer fabrication process, wafer stacking process, encapsulation process, hot pressing process, and production line unloading process into one, realizing the entire process of solid-state battery fabrication. The processes are seamlessly connected, saving manpower and greatly improving the production efficiency of solid-state batteries.

[0063] In some embodiments, combined with Figure 2 It is understood that the stacking table assembly 230 is capable of moving between the stacking assembly 220 and the stacking unloading assembly 240.

[0064] Specifically, when the stacking stage group 230 includes a stacking stage 231, the stacking stage 231 can move independently between the stacking assembly 220 and the stacking unloading assembly 240. When the stacking stage group 230 includes multiple stacking stages 231, each stacking stage 231 in the same stacking stage group 230 can move synchronously or independently between the stacking assembly 220 and the stacking unloading assembly 240.

[0065] When the stacking table 231 moves to the stacking assembly 220 (where the stacking table 231 is located at its stacking loading position d1), the stacking assembly 220 stacks the sheets transported by the electrode loading assembly 210 onto the stacking table 231 to form a stacked structure. When the stacking table 231 is located at the stacking unloading assembly 240 (where the stacking table 231 is located at its stacking unloading position d2), the stacking unloading assembly 240 removes the stacked structure from the stacking table 231 and transports it to the downstream overmolding unit 300.

[0066] At this time, the stacking table group 230 is set to be movable, and each stacking table 231 can move between the fixed stacking loading position d1 and the stacking unloading position d2, which facilitates the stacking assembly 220 to perform stacking operation and the stacking unloading assembly 240 to perform stacking unloading operation, and helps to simplify the overall equipment layout.

[0067] Specifically, in the embodiments, refer to Figure 2 Understand that each stacking stage group 230 includes a first stacking stage 231a and a second stacking stage 231b. The first stacking stage 231a and the second stacking stage 231b can move in the same direction between the stacking assembly 220 and the stacking unloading assembly 240. When the first stacking stage 231a is located at the stacking assembly 240, the second stacking stage 231b is located at the stacking unloading assembly 240.

[0068] The first stacking platform 231a and the second stacking platform 231b moving in the same direction means that they move in the same direction. For example, when the first stacking platform 231a moves to the left, the second stacking platform 231b also moves to the left. When the first stacking platform 231a moves to the right, the second stacking platform 231b also moves to the right. Specifically, the stacking loading position d1 and the stacking unloading position d2 of each stacking platform 231 can be the same or different.

[0069] When the first stacking stage 231a and the second stacking stage 231b move in the same direction, they move between their respective stacking loading position d1 and stacking unloading position d2. When the first stacking stage 231a is located at the stacking assembly 20 (i.e., at its stacking loading position d1), the second stacking stage 231b is located at the stacking unloading assembly 240 (i.e., at its stacking unloading position d2). Conversely, when the second stacking stage 231b is located at the stacking assembly 20 (i.e., at its stacking loading position d1), the first stacking stage 231a is located at the stacking unloading assembly 240 (i.e., at its stacking unloading position d2).

[0070] In practical applications, the first stacking stage 231a and the second stacking stage 231b alternately move to the stacking assembly 220 and then alternately move to the stacking unloading assembly 240. When the stacking assembly 220 is stacking on the first stacking stage 231a, the unloading stacking assembly 240 unloads the stacked structure from the second stacking stage 231b, further improving the stacking efficiency of the entire equipment.

[0071] Optionally, the stacking loading positions d1 of the first stacking stage 231a and the second stacking stage 231b are the same. In this way, the stacking assembly 220 only needs to stack the stacking stages 231 located at the same stacking loading position d1, which simplifies the stacking process of the stacking assembly 220 and reduces costs.

[0072] In other embodiments, the stacking stage group 230 may also include three or more stacking stages 231.

[0073] In some embodiments, the first stacking stage 231a and the second stacking stage 231b can move synchronously between the stacking assembly 220 and the stacking unloading assembly 240.

[0074] The synchronous movement of the first stacking stage 231a and the second stacking stage 231b means that they move in the same direction and at the same speed. During the movement, their relative positions remain unchanged and their movement speeds are consistent, which helps to simplify the motion control of both.

[0075] Of course, in other embodiments, the first stacking stage 231a and the second stacking stage 231b may also move in different directions and at different times, as long as they can move between the stacking assembly 220 and the stacking unloading assembly 240 without causing motion interference.

[0076] In a further embodiment, refer to Figure 2 Understandably, the stacking and unloading assembly 240 includes a first stacking and unloading mechanism 241 and a second stacking and unloading mechanism 242. The first stacking table 231a is movable between the stacking assembly 220 and the first stacking and unloading mechanism 241, and the second stacking table 231b is movable between the stacking assembly 220 and the second stacking and unloading mechanism 242.

[0077] The first stacking unloading mechanism 241 and the second stacking unloading mechanism 242 may be, but are not limited to, robotic arms for transferring the stacked structure L. The first stacking stage 231a is movable between the stacking assembly 220 and the first stacking unloading mechanism 241, and the second stacking stage 231b is movable between the stacking assembly 220 and the second stacking unloading mechanism 242, indicating that the stacking unloading position d2 of the first stacking stage 231a is different from the stacking unloading position d2 of the second stacking stage 231b.

[0078] In practical applications, the first stacking stage 231a and the second stacking stage 231b are arranged side by side along the second direction Y, and both move synchronously along the second direction Y. In the second direction Y, the stacking stage group 230 has at least one stacking loading position d1 and two stacking unloading positions d2, with the two stacking unloading positions d2 located on either side of these stacking loading positions d1. During movement, the first stacking stage 231a and the second stacking stage 231b alternately move to the corresponding stacking loading position d1 (if the stacking loading positions d1 of the first stacking stage 231a and the second stacking stage 231b are the same, they move to the same stacking loading position d1; if the stacking loading positions d1 are different, they move to their respective different stacking loading positions d1), and when the first stacking stage 231a is located at the corresponding stacking loading position d1, the second stacking stage 231b is located at one of the stacking unloading positions d2. When the second stacking table 231b is located at the corresponding stacking loading position d1, the first stacking table 231a is located at the other stacking unloading position d2.

[0079] At this time, by setting two stacking and unloading mechanisms, the stacking and unloading positions d2 of the first stacking platform 231a and the second stacking platform 231b are different. When the two move back and forth along the second direction, the first stacking platform 231a and the second stacking platform 231b can switch synchronously between the stacking loading position d1 and the stacking unloading position d2. The movement stroke is short, the movement time is saved, and the production efficiency of the entire equipment is improved.

[0080] Further in the embodiments, refer to Figure 2 The stacking and unloading assembly 240 also includes a stacking and unloading conveyor belt 243. The coating device 300 is located downstream of the stacking and unloading conveyor belt 243. A first stacking and unloading mechanism 241 is used to transfer the sheets from the first stacking table 231a to the stacking and unloading conveyor belt 243, and a second stacking and unloading mechanism 241 is used to transfer the sheets from the second stacking table 231b to the stacking and unloading conveyor belt 243. In this way, using the same stacking and unloading conveyor belt 243 to transport the stacked structures on each stacking table 231 to the downstream coating device 300 helps reduce equipment costs.

[0081] In some embodiments, continue to refer to Figure 2Understandably, the stacking assembly 220 includes a straightening table 221 and a stacking robot 222, which is used to transfer the sheets on the straightening table 221 to the stacking table group 230.

[0082] In practical applications, the electrodes at the electrode feeding assembly 210 are first transferred to the alignment table 221. After the position is corrected on the alignment table 221, they are then transferred and stacked on the stacking table 231 by the stacking robot 222.

[0083] Understandably, the alignment table 221 is used to correct and adjust the position of the sheet located on itself so that the sheet is accurately stacked on the stacking table 231. The specific construction of the alignment table 221 can be referenced from conventional settings.

[0084] At this time, the accuracy of the stacking position of the sheet on the stacking table 231 can be improved by the correction table 221, thereby improving the yield of the stacked structure.

[0085] In other embodiments, the stacking assembly 220 may also include only the stacking robot 222, as long as it can stack the electrodes at the electrode loading assembly 210 onto the stacking table 231. In this case, the stacking robot 222 can directly pick up the electrodes at the electrode loading assembly 210 and then stack them onto the stacking table 231.

[0086] In a further embodiment, reference continues to be made to... Figure 2 The correction stage 221 includes a first correction stage 221a and a second correction stage 221b. The first correction stage 221a and the second correction stage 221b are arranged at intervals along the first direction X and are located on both sides of the stacking stage group 230.

[0087] In the solid-state battery stacking process, electrodes of different polarities are alternately stacked on the same stacking stage 231 to form a stacked structure for battery fabrication. In practical applications, the first correction stage 221a and the second correction stage 221b on both sides of the stacking stage group 230 correct the positions of different types of electrodes, respectively. When the first correction stage 221a finishes correction, the stacking assembly 220 stacks the corrected electrode onto the stacking stage 231. At the same time, another electrode can be corrected at the second correction stage 221b. In this way, the first correction stage 221a and the second correction stage 221b can continuously provide the stacking stage group 230 with corrected electrodes, improving stacking efficiency.

[0088] In a further embodiment, both the first correction stage 221a and the second correction stage 221b are capable of moving along the first direction X.

[0089] In practical applications, the first correction table 221a and the second correction table 221b switch between their respective correction loading and correction unloading positions as they move. When in the correction loading position, the first correction table 221a and the second correction table 221b can receive the sheet material transported by the electrode loading assembly 210. During the movement from the correction loading position to the correction unloading position, the first correction table 221a and the second correction table 221b move and correct simultaneously, improving the production efficiency of the stacking device 200.

[0090] In some embodiments, the stacking robot 222 includes a first stacking robot (not shown) and a second stacking robot (not shown), both of which are movable between the alignment table 221 and the stacking table group 230. When the first stacking robot is located in the stacking table group 230, the second stacking robot is located in the alignment table 221.

[0091] In practical applications, when the first stacking robot stacks sheets on the stacking table 231, the second stacking robot picks up the sheets that have been corrected to the correct position on the correction table 221. The stacking operation and the sheet transfer are carried out simultaneously, which further improves the production efficiency of the entire equipment.

[0092] In some embodiments, continue to refer to Figure 2 The electrode feeding assembly 210 includes a first feeding conveyor belt 211, a second feeding conveyor belt 212, a first feeding mechanism 213, and a second feeding mechanism 214. The first feeding conveyor belt 211 and the second feeding conveyor belt 212 are spaced apart along a first direction X. The alignment table 221 and the stacking table group 230 are located between the first feeding conveyor belt 211 and the second feeding conveyor belt 212. The first feeding mechanism 213 is used to transfer the electrode sheets on the first feeding conveyor belt 211 to the first alignment table 221a; the second feeding mechanism 214 is used to transfer the electrode sheets on the second feeding conveyor belt 212 to the second alignment table 221b.

[0093] The first feeding conveyor belt 211 and the second feeding conveyor belt 212 extend approximately in a direction perpendicular to the first direction X. In practical applications, taking the first feeding conveyor belt 211 for transporting negative electrode sheets and the second feeding conveyor belt 212 for transporting positive electrode sheets as an example, the first feeding mechanism 213 transfers the negative electrode sheets from the first feeding conveyor belt 211 to the first alignment table 221a for alignment correction. Then, the stacking robot 222 (such as the first stacking robot) transfers the aligned sheets from the first alignment table 221a to the stacking table 231 of the stacking table group 230 for stacking. The second feeding mechanism 214 transfers the positive electrode sheets from the second feeding conveyor belt 212 to the second alignment table 221b for alignment correction. Then, the stacking robot 222 (such as the second stacking robot) transfers the aligned sheets from the second alignment table 221b to the stacking table 231 of the stacking table group 230 for stacking. For the stacking table 231 located at the stacking feeding position d1, when the first stacking robot completes the stacking of negative electrode sheets and exits the stacking table 231, the second stacking robot picks up the positive electrode sheets and stacks them on the same stacking table 231.

[0094] At this time, the electrode feeding assembly 210, by configuring the first feeding conveyor belt 211 and the second feeding conveyor belt 212, as well as the first feeding mechanism 213 and the second feeding mechanism 214, can realize the independent transportation and independent feeding of positive electrode sheets and negative electrode sheets, which helps to speed up the production efficiency of the entire equipment.

[0095] In some embodiments, continue to refer to Figure 2 The stacking device 200 also includes a first feeding component 251 and a second feeding component 252. The first feeding mechanism 213 is also used to transfer the sheet on the first feeding component 251 to the first correction table 221a, and the second feeding mechanism 214 is also used to transfer the sheet on the second feeding component 252 to the second correction table 221b.

[0096] To facilitate the transfer of the stacked structure, a protective film (a sheet, usually but not limited to PET material) is often laid on the bottom and top layers of the stacked structure. In addition, in some stacking methods, such as when the negative electrode sheet transported by the first feeding conveyor belt 211 is a negative electrode sheet with a composite frame, it is necessary to provide an additional negative electrode sheet without a composite frame and place it on the top layer of all the electrode sheets.

[0097] In practical applications, the first feeding component 251 provides the protective film, and the second feeding component 252 provides the electrode sheets (here, electrode sheets refer to negative or positive electrode sheets without composite frames, which can be flexibly set according to specific processes) and other materials required for stacking, realizing automatic feeding of certain materials without manual loading, further improving the automation level of the entire equipment. Moreover, the first feeding mechanism 213 and the second feeding mechanism 214 can not only transfer the materials on each feeding conveyor belt to the correction table 221, but also transfer the materials on each feeding component to the correction table 221, resulting in high utilization, reduced number of mechanisms, and lower costs.

[0098] In one specific embodiment, reference is made to Figure 2 The first feeding assembly 251 and the first alignment table 221a are arranged along the first direction X between the stacking table group 230 and the first feeding conveyor belt 211. The second feeding assembly 252 and the second alignment table 221b are arranged along the first direction X between the stacking table group 230 and the second feeding conveyor belt 212. The first feeding mechanism 213 includes a first rotary manipulator, which can be used to transfer pieces from the first feeding assembly 251 to the first alignment table 221a, and also to transfer pieces from the first feeding conveyor belt 211 to the first alignment table 221a. The second feeding mechanism 214 includes a second rotary manipulator, which can be used to transfer pieces from the second feeding assembly 252 to the second alignment table 221b, and also to transfer pieces from the second feeding conveyor belt 212 to the second alignment table 221b. Using a rotary manipulator to transfer pieces reduces the footprint of the rotary manipulator, which helps to simplify the layout of the entire equipment.

[0099] In one embodiment, the first feeding component 251 is a feeding clip. In another embodiment, the second feeding component 252 is a feeding clip. A feeding clip typically includes a hopper for storing sheet metal, a pusher structure for ejecting the sheet metal from the hopper, etc., and has the advantage of a small footprint. The specific structure of the feeding clip can refer to conventional designs in the art. By using the clip's hopper to store a certain number of sheet metals, not only is the footprint small, but a single loading can accommodate multiple stacking requirements, reducing the number of sheet metal loading operations and improving the overall efficiency of the device.

[0100] In one embodiment, the first feeding assembly 251 is used to provide a protective film. In this case, the first feeding assembly 251 is used to provide a small amount of protective film used in the lamination process; the protective film is typically disposed at the bottom and top layers of the laminated structure.

[0101] In one embodiment, the second feeding assembly 252 is used to provide the negative electrode sheet, the first feeding conveyor belt 211 is used to provide the positive electrode sheet, and the second feeding conveyor belt 212 is used to provide the negative electrode sheet with a composite frame. In this case, the second feeding assembly 251 is used to provide the negative electrode sheet without a composite frame, which uses less material and is typically stacked below the top protective film. The positive electrode sheet provided by the first feeding conveyor belt 211 is the positive electrode sheet without a composite frame.

[0102] In some embodiments, continue to refer to Figure 2 Multiple stacking table groups 230 are arranged side by side along the second direction Y. Each stacking table group 230 includes multiple stacking tables 231 arranged sequentially along the second direction Y. The second direction Y intersects with the first direction X. All stacking table groups 230 are arranged along the first direction X between the first feeding conveyor belt 211 and the second feeding conveyor belt 212.

[0103] In practical applications, the first feeding conveyor belt 211 transports positive electrode sheets along the second direction Y through each stacking platform 230, simultaneously providing positive electrode sheets to each stacking platform 230. The second feeding conveyor belt 212 transports negative electrode sheets along the second direction Y through each stacking platform 230, simultaneously providing negative electrode sheets to each stacking platform 230. Thus, the first feeding conveyor belt 211 and the second feeding conveyor belt 212 have high utilization rates, reducing equipment costs and simplifying the equipment system layout.

[0104] The first direction X is approximately perpendicular to the second direction Y. The arrangement direction of each stacking table 231 in each stacking table group 230 is parallel to the conveying direction of each feeding conveyor belt (parallel to the second direction Y). This arrangement of stacking tables 231 in the second direction Y can make full use of the space of the equipment in the second direction Y, making the overall structure of the equipment more compact.

[0105] Specifically, in the embodiments, refer to Figure 2 Each stacking platform 230 is provided with a first correction platform 221a, a second correction platform 221b, a first feeding mechanism 213, and a second feeding mechanism 214 on both sides.

[0106] In some embodiments, refer to Figure 2 The stacking device 200 also includes a first recycling bin 261 and a second recycling bin 262. The stacking robot 222 is also used to transfer the material on the first straightening table 221a to the first recycling bin 261, and the stacking robot 222 is also used to transfer the material on the second straightening table 221b to the second recycling bin 262.

[0107] The first recycling bin 261 is used to recycle the sheet material that fails to meet the correction requirements at the first correction table 221a. The second recycling bin 262 is used to recycle the sheet material that fails to meet the correction requirements at the second correction table 221b. Optionally, the first recycling bin 261 and the second recycling bin 262 are arranged on both sides of the stacking table group 230 along the first direction X, and are arranged between the first feeding conveyor belt 211 and the second feeding conveyor belt 212 along the first direction X.

[0108] At this time, the stacking device 200 also has the function of waste recycling, making its functions more comprehensive.

[0109] Specifically, when the stacking robot 222 includes a first stacking robot and a second stacking robot, the first stacking robot transfers the defective pieces from the first alignment table 221a to the first recycling bin 261, and the second stacking robot transfers the defective pieces from the second alignment table 221b to the second recycling bin 262.

[0110] Optionally, the stacking robot 222 is arranged above each correction table 221, the first recovery bin 261, the second recovery bin 262 and the stacking table group 230. Its movement is not affected by the arrangement of these mechanisms, which helps to simplify the layout of the entire device.

[0111] Optionally, refer to Figure 2 The first feeding assembly 251, the first recycling bin 261, and the first alignment table 221a are arranged along the first direction X between the first feeding conveyor belt 211 and the stacking table group 230, and the first feeding assembly 251 and the first recycling bin 261 are arranged on both sides of the first alignment table 221a along the second direction Y. Further, the first feeding assembly 251 and the first recycling bin 261 are staggered in the first direction X, with the first feeding assembly 251 located closer to the first feeding conveyor belt 211 and the first recycling bin 261 located closer to the stacking table group 230.

[0112] Optionally, refer to Figure 1 The second feeding assembly 252, the second recycling bin 262, and the second alignment table 221b are arranged along the first direction X between the second feeding conveyor belt 212 and the stacking table group 230, and the second feeding assembly 252 and the second recycling bin 262 are arranged on both sides of the second alignment table 221b along the second direction Y. Further, the second feeding assembly 252 and the second recycling bin 262 are staggered in the first direction X, with the second feeding assembly 252 located closer to the second feeding conveyor belt 212 and the second recycling bin 262 located closer to the stacking table group 230.

[0113] In some embodiments, refer to Figure 1The electrode forming apparatus 100 includes a positive electrode forming apparatus 100A and a negative electrode forming apparatus 100B. The electrode feeding assembly 210 includes a first feeding conveyor belt 211 and a second feeding conveyor belt 212. The first feeding conveyor belt 211 is located downstream of the positive electrode forming apparatus 100A, and the second feeding conveyor belt 212 is located downstream of the negative electrode forming apparatus 100B.

[0114] In practical applications, the positive electrode forming device 100A forms positive electrode sheets from positive electrode material strips, while the negative electrode forming device 100B forms negative electrode sheets from negative electrode material strips. The first feeding conveyor belt 211 receives the positive electrode sheets and transports them downstream, while the second feeding conveyor belt 212 receives the negative electrode sheets and transports them downstream. This allows for independent forming of the positive and negative electrode sheets, and the use of different feeding conveyor belts helps improve the overall production efficiency of the equipment.

[0115] Of course, in other embodiments, the number of sheet-making devices 100 may also be increased; for example, some sheet-making devices 100 are also used to prepare PET films.

[0116] In some embodiments, refer to Figure 3 The film making apparatus 100 includes a film making mechanism 20, which includes an electrode cutting assembly 21 and a cutting assembly 22. The cutting assembly 22 is arranged downstream of the electrode cutting assembly 21, and the electrode feeding assembly 210 is arranged downstream of the cutting assembly 22.

[0117] In practical applications, the sheet-making mechanism 20 of the anisotropic sheet-making apparatus 100 conveys a material strip (positive electrode strip or negative electrode strip), and the tab cutting assembly 21 is used to cut the material strip along its path to form tabs on both sides in the width direction of the material strip. The cutting assembly 22 is arranged downstream of the tab cutting assembly 21 and is used to cut the material strip along its path to form a sheet.

[0118] Further in the embodiments, refer to Figure 3 One of the film-making devices 100 also includes a composite mechanism 10, which includes an electrode unwinding assembly 11, a film frame unwinding assembly 12, and a strip composite assembly 13. The electrode unwinding assembly 11 and the film frame unwinding assembly 12 are both arranged upstream of the strip composite assembly 13, and the tab cutting assembly 21 is arranged downstream of the strip composite assembly 13.

[0119] In practical applications, combined with Figure 6It is understood that the electrode unwinding assembly 11 and the frame unwinding assembly 12 are both arranged upstream of the strip composite assembly 13, and are used to unwind and output electrode strip A and frame strip B to the strip composite assembly 13, respectively. Both sides of the electrode strip A are provided with a solid electrolyte layer. The strip composite assembly 13 is used to roll-composite the passing electrode strip A and frame strip B to form a composite strip C. It should be noted that the electrode strip A can be a negative electrode strip; however, in other embodiments it can also be a positive electrode strip, which is not limited here.

[0120] In this way, the electrode strip A and the frame strip B are combined using the strip composite assembly 13, and then the tab cutting assembly 21 is used to cut the composite strip C to form tabs. Finally, the cutting assembly 22 is used to cut the composite strip C to form a sheet. This avoids cutting the electrode, solid electrolyte layer and frame separately, which helps to improve sheet production efficiency and thus improve the overall production efficiency of the machine, so as to better meet the production capacity requirements.

[0121] Understandably, another sheet-making device 100 also includes a strip unwinding assembly for unwinding the strip toward the tab cutting assembly 21.

[0122] Specifically, in the embodiments, refer to Figure 4 The unwinding assembly 12 outputs a release film B and several frames arranged on the same side of the release film B1. The frames are arranged sequentially along the length of the release film B1.

[0123] The composite mechanism 10 also includes a release film winding assembly 14, which is arranged between the downstream of the tape composite assembly 13 and the upstream of the tab cutting assembly 21, for winding the release film B1 on the composite tape C in the path, so that the composite tape C reaching the tab cutting assembly 21 does not contain the release film B1.

[0124] Furthermore, referring to Figure 4 The release film winding assembly 14 includes a first guide roller 142, a first tension adjusting assembly 143, and a release film winding member 141. The first guide roller 142 is used to wind the release film B1 on the composite material strip C. The release film winding member 141 is arranged downstream of the first guide roller 142 and is used to wind the release film B1 on the composite material strip C that has passed through the first guide roller 142. The first tension adjusting assembly 143 is arranged between the downstream of the first guide roller 142 and the upstream of the release film winding member 141 and is used to adjust the tension of the release film B1 so that the tension of the release film B1 remains stable, so that the release film winding member 141 can stably wind the release film B1.

[0125] Optionally, the first tension adjustment assembly 143 includes a second guide roller 1431, a third guide roller 1433, and a first moving roller 1432. The second guide roller 1431 is arranged downstream of the first guide roller 142, the third guide roller 1433 is arranged downstream of the second guide roller 1431, the release film winding member 141 is arranged downstream of the third guide roller 1433, and the first moving roller 1432 is movably disposed between the second guide roller 1431 and the third guide roller 1433. Thus, after the release film B1 on the composite strip C separates from the composite strip C at the first guide roller 142, it sequentially passes through the second guide roller 1431, the first moving roller, and the third guide roller 1433, and is then wound up by the release film winding member 141. The first moving roller 1432 can move relative to the second passing roller 1431 and the third passing roller 1433, thereby causing the release film B1 to be tensioned or relaxed, that is, to adjust the tension of the release film B1 and ensure that the tension of the release film B1 remains stable.

[0126] It should be noted that the tension of the release film B1 can be adjusted by means of translation or oscillation, which is not limited here.

[0127] Specifically, in the embodiments, refer to Figure 4 The composite mechanism 10 also includes a deviation correction component 17, which is arranged between the downstream of the electrode unwinding assembly 11 and the upstream of the strip composite assembly 13. The deviation correction component 17 is used to correct the deviation of the passing electrode strip A, so as to prevent the electrode strip A entering the strip composite assembly 13 from deviating from the frame strip B in the width direction.

[0128] In the specific embodiments, please refer to... Figure 4 The composite mechanism 10 also includes a fourth guide roller 161, a first tape-joining assembly 163, and a fifth guide roller 165. The fourth guide roller 161 and the fifth guide roller 165 are both arranged downstream of the electrode unwinding assembly 11 and upstream of the web-correcting assembly 17, while the first tape-joining assembly 163 is arranged between the fourth guide roller 161 and the fifth guide roller 165. Thus, the electrode strip A unwound from the electrode unwinding assembly 11 sequentially passes through the fourth guide roller 161, the first tape-joining assembly 163, the fifth guide roller 165, the web-correcting assembly 17, and the tape composite assembly 13. The fourth guide roller 161 and the fifth guide roller 165 are used to deflect the passing electrode strip A, ensuring that the electrode strip A between the fourth guide roller 161 and the fifth guide roller 165 passes through the first tape-joining assembly 163, facilitating tape-joining operations at the first tape-joining assembly 163.

[0129] It should be noted that when the material roll on the electrode unwinding assembly 11 is used up and needs to be replaced, the electrode material strip A is first cut at the first splicing assembly 163, and the downstream cut end of the electrode material strip A is fixed by the first splicing assembly 163. Then, the empty material roll on the electrode unwinding assembly 11 is removed, and a new full material roll is loaded onto the electrode unwinding assembly 11. The starting end of the material strip on the full material roll is then pulled to the first splicing assembly 163, and bonded to the downstream cut end of the electrode material strip A fixed by the first splicing assembly 163 with adhesive tape, thus completing the splicing.

[0130] In the specific embodiments, please refer to... Figure 4 The composite mechanism 10 also includes a second tension adjustment component 18. The second tension adjustment component 18 is arranged between the downstream of the electrode unwinding component 11 and the upstream of the correction component 17, and is used to adjust the tension of the electrode strip A so that the tension of the electrode strip A remains stable, so that the electrode strip A enters the strip composite component 13 with a certain tension, which is beneficial to improving the quality of strip composite.

[0131] Optionally, the second tension adjustment assembly 18 includes a sixth guide roller 181, a seventh guide roller 185, and a second motion roller 183. The sixth guide roller 181 is arranged downstream of the electrode unwinding assembly 11, the seventh guide roller 185 is arranged downstream of the sixth guide roller 181, the web guiding assembly 17 is arranged downstream of the seventh guide roller 185, and the second motion roller 183 is movably disposed between the sixth guide roller 181 and the seventh guide roller 185. Thus, the electrode strip A unwound from the electrode unwinding assembly 11 passes sequentially through the sixth guide roller 181, the second motion roller 183, the seventh guide roller 185, and the web guiding assembly 17. The second motion roller 183 can move relative to the sixth guide roller 181 and the seventh guide roller 185, thereby causing the passing electrode strip A to be tensioned or relaxed, that is, to adjust the tension of the electrode strip A and ensure that the tension of the electrode strip A remains stable.

[0132] It should be noted that the tension of the electrode strip A can be adjusted by means of translation or oscillation, which is not limited here.

[0133] In the specific embodiments, please refer to... Figure 4 The composite mechanism 10 also includes a first dust removal component 191 and a second dust removal component 192. Both the first dust removal component 191 and the second dust removal component 192 are arranged downstream of the electrode unwinding assembly 11 and upstream of the correction assembly 17. The first dust removal component 191 is used to remove dust from one side of the passing electrode strip A, and the second dust removal component 192 is used to remove dust from the other side of the passing electrode strip. Thus, by using the first dust removal component 191 and the second dust removal component 192 to remove dust from both sides of the electrode strip A, dust and other contaminants are avoided from remaining on the surface of the electrode strip A entering the strip composite assembly 13.

[0134] Specifically Figure 4 In the illustrated embodiment, the electrode unwinding assembly 11, the fourth guide roller 161, the first tape joining assembly 163, the first dust removal assembly 191, the fifth guide roller 165, the sixth guide roller 181, the second motion roller 183, the seventh guide roller 185, the second dust removal assembly 192, and the web guiding assembly 17 are arranged sequentially from upstream to downstream. That is, the electrode strip A unwound from the electrode unwinding assembly 11 passes sequentially through the fourth guide roller 161, the first tape joining assembly 163, the first dust removal assembly 191, the fifth guide roller 165, the sixth guide roller 181, the second motion roller 183, the seventh guide roller 185, the second dust removal assembly 192, and the web guiding assembly 17, and then enters the strip composite assembly 13 for composite processing.

[0135] In a specific embodiment, the composite material assembly 13 includes a first composite roller 131 and a second composite roller 133, both of which are rotatable about their own axes. The first composite roller 131 and the second composite roller 133 are arranged parallel to each other and opposite to each other, forming a composite channel through which the electrode strip A and the frame strip B pass. Thus, the first composite roller 131 and the second composite roller 133 jointly compress the electrode strip A and the frame strip B passing between them, causing the electrode strip A and the frame strip B to adhere to each other to form a composite material strip C.

[0136] Furthermore, the strip composite assembly 13 also includes an adjustment assembly 135, which is connected to the second composite roller 133. The adjustment assembly 135 is used to move the second composite roller 133 closer to or further away from the first composite roller 131, thereby adjusting the width of the composite channel and thus adjusting the pressure on the electrode strip A and the frame strip B passing through the composite channel.

[0137] It should be noted that the first electrode strip A and / or the frame strip B have a bonding adhesive. This bonding adhesive can be a pressure-sensitive adhesive or a heat-sensitive adhesive, and is not limited here. The first composite roller 131 and the second composite roller 133 can be room temperature rollers or hot-press rollers, as long as they can achieve the bonding of the electrode strip A and the frame strip B, and are not limited here.

[0138] Please see Figure 5As shown in the embodiments of this application, the film-making mechanism 20 further includes a first visual inspection component 24 and a second visual inspection component 25. Both the first visual inspection component 24 and the second visual inspection component 25 are arranged downstream of the release film winding assembly 14 and upstream of the electrode cutting assembly 21, so that the first visual inspection component 24 and the second visual inspection component 25 can respectively perform visual inspection on both sides of the passing composite strip C, that is, perform surface defect detection on both sides of the composite strip C. Thus, if a surface defect is detected in a certain section of the composite strip C, the defective electrode sheet D will be rejected after that section is subsequently cut to form the electrode sheet D. It should be noted that both the first visual inspection component 24 and the second visual inspection component 25 can be cameras.

[0139] In the specific embodiments, please refer to... Figure 5 The sheet-making mechanism 20 also includes a main drive conveyor assembly 23. This main drive conveyor assembly 23 is positioned downstream of the tab cutting assembly 21 and upstream of the cutting assembly 22, and is used to pull the composite material strip C towards the cutting assembly 22. Thus, each time the main drive conveyor assembly 23 pulls the composite material strip C a certain distance towards the downstream cutting assembly 22, it ensures that the cutting assembly 22 cuts accurately each time, resulting in electrode sheet D of consistent size.

[0140] In the specific embodiments, please refer to... Figure 5 The electrode fabrication mechanism 20 also includes a feeding assembly 26, a third vision inspection assembly 28, and a fourth vision inspection assembly 29. The feeding assembly 26 is located downstream of the cutting assembly 22 and is used to receive the electrode sheet D formed by cutting the composite strip C by the cutting assembly 22. The third vision inspection assembly 28 and the fourth vision inspection assembly 29 are both arranged on the feeding path of the feeding assembly 26, enabling both to perform visual inspection of the electrode sheet D on the feeding assembly 26.

[0141] Furthermore, the third vision inspection component 28 is used to perform dimensional inspection on the electrode sheet D on the feeding assembly 26 to determine whether the dimensions of the electrode sheet D are qualified. The fourth vision inspection component 29 is used to perform surface defect inspection on the electrode sheet D on the feeding assembly 26 to determine whether surface defects exist in the electrode sheet D. It should be noted that both the third vision inspection component 28 and the fourth vision inspection component 29 can be cameras.

[0142] Optionally, the conveying assembly 26 is a vacuum belt conveyor. In actual use, firstly, the main drive conveying assembly 23 pulls the composite material belt C a certain distance towards the cutting assembly 22, so that the starting end of the composite material belt C reaches the belt of the conveying assembly 26 and is attracted and fixed on the belt; then, the cutting assembly 22 cuts the composite material belt C. At this time, part of the electrode sheet D formed by the cutting is attracted and fixed on the belt of the conveying assembly 26. Then, the belt of the conveying assembly 26 moves downstream, thereby driving the electrode sheet D to move downstream together.

[0143] In the specific embodiments, please refer to... Figure 5 The electrode assembly 20 also includes a third dust removal component 27, which is arranged on the conveying path of the conveying assembly 26, so that the third dust removal component 27 can remove dust from the electrode sheet D on the conveying assembly 26 to ensure that the cleanliness of the electrode sheet D on the conveying assembly 26 meets the process requirements.

[0144] Specifically Figure 5 In the illustrated embodiment, the third dust removal component 27, the third visual inspection component 28, and the fourth visual inspection component 29 are arranged sequentially along the feeding direction of the feeding component 26. That is, the electrode sheet D on the feeding component 26 passes through the third dust removal component 27 for dust removal, the third visual inspection component 28 for size inspection, and the fourth visual inspection component 29 for surface defect inspection.

[0145] In some embodiments, refer to Figure 7 The coating apparatus 300 includes a coating platform 310 and a coating assembly 320. At least one coating assembly 320 is arranged around the periphery of the coating platform 310. The coating platform 310 is used to support the stacked structure to be coated, and the coating assembly 320 is used to coat the stacked structure at the coating platform 310 with a sealing film. The specific structure of the coating assembly 320 is not limited here, and conventional settings can be referred to.

[0146] In some embodiments, continue to refer to Figure 7 The hot pressing device 400 includes a hot pressing buffer assembly 410. The laminating table 310 is located downstream of the laminating unloading assembly 240, and the hot pressing buffer assembly 410 is also located downstream of the laminating table 310. In practical applications, the robot arm transfers the laminating structure from the unloading end of the laminating unloading assembly 240 to the laminating table 310 for lamination, and then transfers it to the hot pressing buffer assembly 410 for buffering. The specific structure of the hot pressing buffer assembly 410 is not limited here.

[0147] Further in the embodiments, refer to Figure 7The solid-state battery production equipment 1000 includes a rotating robot 401, which is arranged between the stacking and unloading assembly 240, the coating table 310, and the hot-pressing buffer assembly 410. The rotating robot 401 enables the transfer of the stacked structure between the stacking and unloading assembly 240 and the coating table 310, as well as the transfer of the coated stacked structure between the coating table 310 and the hot-pressing buffer assembly 410, resulting in a small footprint and high utilization rate.

[0148] In some embodiments, continue to refer to Figure 7 The hot pressing device 400 includes a hot pressing buffer assembly 410, a hot pressing feeding assembly 420, a hot pressing table 430, and a hot pressing unloading assembly 440. The hot pressing feeding assembly 420 is located downstream of the hot pressing buffer assembly 410, which is located upstream of the overmolding device 300. The hot pressing feeding assembly 420 is located upstream of the hot pressing table 430, which is located upstream of the hot pressing unloading assembly 440, which is located upstream of the unloading device 500.

[0149] In practical applications, the stacking and unloading assembly 240 transports the stacked structure to the overmolding device 300, where it encapsulates the structure with adhesive to obtain an overmolded stacked structure. The overmolded stacked structure is then transferred by a robotic arm to the hot-press buffer assembly 410. The robotic arm then transfers each overmolded stacked structure from the hot-press buffer assembly 410 to the hot-press loading assembly 420, where it is transferred by the robotic arm to the hot-press table 430 for hot-pressing. This ensures a tight and reliable connection between the layers of the stacked structure and effective solid-solid interface contact, resulting in a battery. The robotic arm then transfers the battery to the hot-press unloading assembly 440, which then conveys it towards the unloading device 500.

[0150] Preferably, continue to refer to Figure 7 At least two hot press tables 430 are arranged side by side along the first direction X, and hot press feeding assembly 420 and hot press unloading assembly 440 are arranged on both sides of all the hot press tables 430 along the second direction Y, with the first direction X and the second direction Y intersecting.

[0151] In practical applications, multiple hot pressing stations 430 are arranged side-by-side along the first direction X. The space occupied by the stacking device 200 in the first direction X can be used to arrange the hot pressing device 400, reducing the overall size and floor space of the equipment. Simultaneously, multiple hot pressing stations 430 are set between the hot pressing feeding assembly 420 and the hot pressing unloading assembly 440, allowing multiple batteries to be hot-pressed simultaneously through each hot pressing station 430, improving battery manufacturing efficiency. The hot pressing feeding assembly 420 and the hot pressing unloading assembly 440 can use conveyor rollers, conveyor belts, or other methods for feeding materials. The specific structure of the hot pressing station 430 is not limited here.

[0152] In some embodiments, continue to refer to Figure 7 The solid-state battery production equipment 1000 also includes a testing device 600, a labeling device 700, and a recycling device 800. The testing device 600 is located downstream of the hot pressing device 400. The recycling device 800 and the labeling device 700 are both located downstream of the testing device 600. The offline device 500 is located downstream of the labeling device 700.

[0153] In practical applications, the robotic arm picks up the batteries from the feeding end of the self-heating and pressing feeding assembly 440, and then transfers them to the testing device 600 for testing and inspection of appearance quality, dimensions, performance, etc. Batteries that pass the tests are transferred by the robotic arm to the labeling device 700, where QR codes are affixed for easy product traceability. After labeling, the batteries are transferred by the robotic arm to the off-line device 500 for processing. Batteries that fail the tests are transferred by the robotic arm to the recycling device 800 for recycling.

[0154] The solid-state battery production equipment in this application embodiment produces solid-state batteries according to the following steps:

[0155] S1. The sheet-making device 100 prepares positive electrode strips and negative electrode strips into positive electrode sheets and negative electrode sheets respectively.

[0156] After the electrode fabrication apparatus 100 obtains the positive electrode material strip and the negative electrode material strip, it fabricates the positive electrode material strip to obtain the positive electrode material sheet and the negative electrode material strip to obtain the negative electrode material sheet.

[0157] The positive electrode sheet produced from the positive electrode strip can be a positive electrode sheet without a composite frame, and the negative electrode strip can be a composite strip C with an electrolyte layer and a composite frame. The negative electrode sheet obtained by fabricating from these strips is a negative electrode sheet with an electrolyte layer and a composite frame. Alternatively, the negative electrode sheet produced from the negative electrode strip can be a negative electrode sheet without a composite frame, and the positive electrode strip can be a composite strip C with an electrolyte layer and a composite frame. The positive electrode sheet obtained by fabricating from these strips is a positive electrode sheet with an electrolyte layer and a composite frame.

[0158] Specifically, when the electrode fabrication apparatus 100 includes a positive electrode fabrication apparatus 100A and a negative electrode fabrication apparatus 100B, and one of the positive electrode fabrication apparatus 100A and the negative electrode fabrication apparatus 100B includes the aforementioned composite mechanism 10, in step S1, the electrode unwinding assembly 11 of the composite mechanism 10 is used to unwind and output the electrode strip A to the downstream strip composite assembly 13, and the frame unwinding assembly 12 is used to unwind and output the frame strip B to the downstream strip composite assembly 13. Both sides of the electrode strip A have solid electrolyte layers. The frame strip B includes a release film B1 and multiple frames disposed on the same side of the release film B1, with each frame arranged sequentially along the length of the release film B1. Then, the electrode strip A and the frame strip B are rolled together to form a composite strip C. Specifically, the composite assembly 13 of the composite mechanism 10 rolls the passing electrode strip A and frame strip B, so that the electrode strip A and frame strip B are combined to form a composite strip C. The composite strip C includes a release film B1, a frame, a solid electrolyte layer, an electrode, and a solid electrolyte layer stacked in sequence.

[0159] S2, Electrode feeding assembly 210, self-made electrode device 100, receives positive electrode and negative electrode materials.

[0160] Specifically, if the electrode feeding assembly 210 includes a first feeding conveyor belt 211 and a second feeding conveyor belt 212, then the first feeding conveyor belt 211 is used to receive positive electrode sheets from the positive electrode sheet making device 100A, and the second feeding conveyor belt 212 is used to receive negative electrode sheets from the negative electrode sheet making device 100B.

[0161] S3. The stacking assembly 220 alternately stacks the positive electrode and negative electrode materials from the electrode feeding assembly 210 onto the stacking platform 230 to obtain a stacked structure.

[0162] When the stacking assembly 220 includes a first alignment table 221a and a second alignment table 221b, a first stacking robot and a second stacking robot, and the electrode feeding assembly 210 includes a first feeding mechanism 213 and a second feeding mechanism 214, the first feeding mechanism 213 transfers the positive electrode sheet at the first feeding conveyor belt 211 to the first alignment table 221a for position correction, and the second feeding mechanism 214 transfers the negative electrode sheet at the second feeding conveyor belt 212 to the second alignment table 221b for position correction, when the first stacking robot picks up the positive electrode sheet that has been corrected from the first alignment table 221a, the second stacking robot stacks the negative electrode sheet that has been corrected from the first alignment table 221a onto the stacking table 231 of the stacking table group 230 located at the stacking feeding position d1. If the sheet on the first alignment table 221a is not properly aligned, it is transferred by the first stacking robot to the first recycling bin 261. If the sheet on the second alignment table 221b is not properly aligned, it is transferred by the second stacking robot to the second recycling bin 262.

[0163] Optionally, when each stacking platform group 230 is provided with a first stacking platform 231a and a second stacking platform 231b, the first stacking platform 231a and the second stacking platform 231b are switched to the same stacking position d1 in sequence. Whenever the stacking structure on a first stacking platform 231a is completed, the second stacking platform 231b is switched to the stacking position d1 to continue stacking, while the first stacking platform 231a that has been stacked is moved to the stacking unloading position d2.

[0164] Optionally, when the electrodes at the electrode feeding assembly 210 are stacked on the stacking table 231, the first feeding mechanism 213 first transfers the PET film from the first feeding assembly 251 to the first alignment table 221a. After the PET film is aligned in place by the first alignment table 221a, it is transferred to the stacking table 231 by the first stacking robot. Then, the positive electrode sheet and the negative electrode sheet are stacked sequentially on the stacking table 231. Next, the second feeding mechanism 214 transfers the negative electrode sheet without a composite frame provided by the second feeding assembly 252 to the second alignment table 221b. After the negative electrode sheet without a composite frame is aligned in place by the second alignment table 221b, it is transferred to the stacking table 231 by the second stacking robot. Finally, the same steps are repeated to stack the PET film on top of the stacked structure to obtain the final stacked structure.

[0165] S4. The stacking and unloading assembly 240 transports the stacked structure to the coating device 300 for coating.

[0166] Specifically, when the stacking and unloading assembly 240 includes a first stacking and unloading mechanism 241, a second stacking and unloading mechanism 242, and a stacking and unloading conveyor belt 243, the first stacking and unloading mechanism 241 acquires the stacked structure located at the first stacking platform 231a at the stacking and unloading position d2 and transfers it to the stacking and unloading conveyor belt 243. The second stacking and unloading mechanism 242 acquires the stacked structure located at the second stacking platform 231b at the stacking and unloading position d2 and transfers it to the stacking and unloading conveyor belt 243. Finally, the stacking and unloading conveyor belt 243 transports the stacked structure to the coating device 300 for coating processing.

[0167] S5. The hot pressing device 400 hot presses the laminated structure after coating to obtain the battery.

[0168] When the hot pressing device 400 includes a hot pressing buffer assembly 410, a robotic arm transfers the pre-coated laminated structure to the hot pressing buffer assembly 410 for buffering. Then, the robotic arm transfers the pre-coated laminated structure from the hot pressing buffer assembly 410 to the hot pressing feeding assembly 420, and then to each hot pressing table 430 for hot pressing to obtain the battery. Finally, the battery is transferred to the hot pressing unloading assembly 440 for downstream transport.

[0169] S6, the battery is removed from the production line by the unloading device 500.

[0170] Specifically, when the solid-state battery production equipment 1000 includes the aforementioned testing device 600, coding device 700, and recycling device 800, the batteries flowing out from the hot-pressing feeding assembly 440 are first tested and inspected at the testing device 600. Qualified batteries are transferred by a robotic arm to the coding device 700 to have QR codes affixed, and then transferred to the off-line device 500 for final off-line processing. Unqualified batteries are transferred by a robotic arm to the recycling device 800 for recycling.

[0171] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0172] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A solid-state battery production apparatus characterized by comprising: include: Film preparation apparatus (100); A stacking apparatus (200) includes an electrode loading assembly (210) downstream of the electrode forming apparatus (100), a stacking assembly (220) downstream of the electrode loading assembly (210), at least one stacking stage group (230) downstream of the stacking assembly (220), and a stacking unloading assembly (240) downstream of the stacking stage group (230), each of the stacking stage groups (230) including at least one stacking stage (231); and The following are downstream of the stacking and feeding assembly (240): a coating device (300), a hot pressing device (400), and a de-line device (500).

2. The solid-state battery production equipment according to claim 1, characterized in that, The stacking table assembly (230) is movable between the stacking component (220) and the stacking unloading component (240).

3. The solid-state battery production equipment according to claim 2, characterized in that, Each stacking stage group (230) includes a first stacking stage (231a) and a second stacking stage (231b), which are capable of moving in the same direction between the stacking assembly (220) and the stacking unloading assembly (240), with the first stacking stage (231a) located at the stacking assembly (220) and the second stacking stage (231b) located at the stacking unloading assembly (240).

4. The solid-state battery production apparatus according to claim 3, characterized by The stacking and unloading assembly (240) includes a first stacking and unloading mechanism (241) and a second stacking and unloading mechanism (242). The first stacking table (231a) is movable between the stacking assembly (220) and the first stacking and unloading mechanism (241), and the second stacking table (231b) is movable between the stacking assembly (220) and the second stacking and unloading mechanism (242).

5. The solid-state battery production apparatus according to claim 3, characterized by The first stacking stage (231a) and the second stacking stage (231b) are capable of moving synchronously between the stacking assembly (220) and the stacking unloading assembly (240).

6. The solid-state battery production apparatus according to claim 4, characterized by The stacking and unloading assembly (240) further includes a stacking and unloading conveyor belt (243), and the overmolding device (300) is located downstream of the stacking and unloading conveyor belt (243). The first stacking and unloading mechanism (241) is used to transfer the sheet from the first stacking table (231a) to the stacking and unloading conveyor belt (243), and the second stacking and unloading mechanism (242) is used to transfer the sheet from the second stacking table (231b) to the stacking and unloading conveyor belt (243).

7. The solid-state battery production apparatus according to claim 1, characterized by The stacking assembly (220) includes a straightening table (221) and a stacking robot (222), the stacking robot (222) being used to transfer the sheet material on the straightening table (221) to the stacking table assembly (230).

8. The solid-state battery production apparatus according to claim 7, characterized by The correction stage (221) includes a first correction stage (221a) and a second correction stage (221b). The first correction stage (221a) and the second correction stage (221b) are spaced apart along a first direction (X) and arranged on both sides of the stacking stage group (230).

9. The solid-state battery production apparatus according to claim 8, characterized by The first deviation rectifying table (221a) and the second deviation rectifying table (221b) are arranged along the first direction (X).

10. The solid-state battery production apparatus according to claim 7, characterized by The lamination manipulator (222) comprises a first lamination manipulator and a second lamination manipulator, and the first lamination manipulator and the second lamination manipulator are capable of moving between the deviation rectifying table (221) and the lamination table group (230). When the first lamination manipulator is located at the lamination table group (230), the second lamination manipulator is located at the deviation rectifying table (221).

11. The solid-state battery production apparatus according to claim 8, characterized by The lamination device (200) further comprises a first feeding assembly (251) and a second feeding assembly (252), and the first feeding assembly (251) is used for providing a protective film.

12. The solid-state battery production apparatus according to claim 11, characterized by, The second feeding assembly (252) is a feeding clip used for providing a negative electrode sheet, the first feeding conveyor (211) is used for providing a positive electrode sheet, and the second feeding conveyor (212) is used for providing a negative electrode sheet of a composite frame.

13. The solid-state battery production apparatus according to claim 12, characterized by, A plurality of lamination table groups (230) are arranged side by side along a second direction (Y), each lamination table group (230) comprises a plurality of lamination tables (231) arranged in sequence along the second direction (Y).

14. The solid-state battery production apparatus of claim 12, wherein, All the lamination table groups (230) are arranged between the first feeding conveyor (211) and the second feeding conveyor (212) along the first direction (X).

15. The solid-state battery production apparatus of claim 11, wherein, The lamination device (200) further comprises a first recovery bin (261) and a second recovery bin (262), and the lamination manipulator (222) is further used for transferring the electrode sheet on the first deviation rectifying table (221a) to the first recovery bin (261) and transferring the electrode sheet on the second deviation rectifying table (221b) to the second recovery bin (262). ​ 16. The solid-state battery production apparatus of claim 8, wherein, ​ 17. The solid-state battery production apparatus of claim 1, wherein The tab piece feeding device (100) comprises a positive electrode tab piece feeding device (100A) and a negative electrode tab piece feeding device (100B), and the tab piece feeding assembly (210) comprises a first feeding conveying belt (211) and a second feeding conveying belt (212), wherein the first feeding conveying belt (211) is located downstream of the positive electrode tab piece feeding device (100A), and the second feeding conveying belt (212) is located downstream of the negative electrode tab piece feeding device (100B).

18. The solid-state battery production apparatus according to any one of claims 1 to 17, characterized by, The tab piece feeding device (100) comprises a tab piece feeding mechanism (20), wherein the tab piece feeding mechanism (20) comprises a tab ear cutting assembly (21) and a cutting assembly (22), the cutting assembly (22) is arranged downstream of the tab ear cutting assembly (21), and the tab piece feeding assembly (210) is arranged downstream of the cutting assembly (22).

19. The solid-state battery production apparatus of claim 18, wherein, The tab piece feeding device (100) further comprises a composite mechanism (10), wherein the composite mechanism (10) comprises a tab piece unwinding assembly (11), a rubber frame unwinding assembly (12) and a material belt composite assembly (13), the tab piece unwinding assembly (11) and the rubber frame unwinding assembly (12) are arranged upstream of the material belt composite assembly (13), and the tab ear cutting assembly (21) is arranged downstream of the material belt composite assembly (13).

20. The solid-state battery production apparatus of claim 19, wherein, The composite mechanism (10) further comprises a release film winding assembly (14), wherein the release film winding assembly (14) is arranged between downstream of the material belt composite assembly (13) and upstream of the tab ear cutting assembly (21).

21. The solid-state battery production equipment according to claim 20, characterized in that, The tab piece feeding mechanism (20) further comprises a first visual detection assembly (24) and a second visual detection assembly (25), wherein the first visual detection assembly (24) and the second visual detection assembly (25) are used for visually detecting both sides of the material belt passing between downstream of the release film winding assembly (14) and upstream of the tab ear cutting assembly (21).

22. The solid-state battery production apparatus of claim 18, wherein, The tab piece feeding mechanism (20) further comprises a material conveying assembly (26), a third visual detection assembly (28) and a fourth visual detection assembly (29), wherein the material conveying assembly (26) is arranged downstream of the cutting assembly (22), and the third visual detection assembly (28) and the fourth visual detection assembly (29) are arranged on a material conveying path of the material conveying assembly (26).

23. The solid-state battery production apparatus of claim 22, wherein, The tab piece feeding mechanism (20) further comprises a third dust removal assembly (27), wherein the third dust removal assembly (27) is arranged on the material conveying path of the material conveying assembly (26) and is used for removing dust from the tab piece material (D) on the material conveying assembly (26).

24. The solid-state battery production apparatus according to any one of claims 1 to 17, characterized by, The encapsulation device (300) comprises an encapsulation table (310) and an encapsulation assembly (320), and at least one encapsulation assembly (320) is arranged on the periphery of the encapsulation table (310). The encapsulation table (310) is located downstream of the tab piece feeding assembly (240) and upstream of the hot-pressing device (400).

25. The solid-state battery production apparatus according to any one of claims 1 to 17, characterized by, The hot-pressing device (400) comprises a hot-pressing buffer assembly (410), a hot-pressing feeding assembly (420), a hot-pressing table (430) and a hot-pressing discharging assembly (440). The hot-pressing buffer assembly (410) is located upstream of the encapsulation device (300), the hot-pressing feeding assembly (420) is located downstream of the hot-pressing buffer assembly (410), the hot-pressing feeding assembly (420) is located upstream of the hot-pressing table (430), the hot-pressing table (430) is located upstream of the hot-pressing discharging assembly (440), and the hot-pressing discharging assembly (440) is located upstream of the offline device (500).

26. The solid-state battery production apparatus of claim 25, wherein, At least two hot-pressing tables (430) are arranged side by side along a first direction (X), and the hot-pressing feeding assembly (420) and the hot-pressing discharging assembly (440) are arranged on both sides of all the hot-pressing tables (430) along a second direction (Y), and the first direction (X) and the second direction (Y) are arranged intersectingly.

27. The solid-state battery production apparatus according to any one of claims 1 to 17, characterized by, The solid-state battery production equipment further comprises a testing device (600), a code affixing device (700) and a recycling device (800), the testing device (600) is arranged downstream of the hot-pressing device (400), the recycling device (800) and the code affixing device (700) are both arranged downstream of the testing device (600), and the offline device (500) is arranged downstream of the code affixing device (700).

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