Solid-state battery stack device

Abstract

The application relates to a solid-state battery lamination device for preparing a solid-state battery, the solid-state battery lamination device comprising a lamination assembly, a lamination table group and a lamination blanking assembly, the lamination table group being capable of moving between the lamination assembly and the lamination blanking assembly, and the lamination table group comprising at least a first lamination table and a second lamination table. The solid-state battery lamination device of the application is used for lamination production of a solid-state battery cell, and the lamination table group comprises at least a first lamination table and a second lamination table. When the lamination table group moves to the lamination assembly during actual lamination, the lamination assembly can perform lamination operation on multiple lamination tables, the lamination efficiency is relatively high, and the lamination yield can be improved.

Description

Technical Field

[0001] This application relates to the field of solid-state battery processing technology, and in particular to solid-state battery stacking apparatus. 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 materials, and then stacking these materials on a stacking table. However, the stacking efficiency of existing solid-state battery manufacturing equipment is low, resulting in low overall equipment production efficiency and an inability to meet capacity demands. Utility Model Content

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

[0005] This application provides a solid-state battery stacking apparatus, which includes a stacking assembly, a stacking platform group, and a stacking unloading assembly. The stacking platform group is movable between the stacking assembly and the stacking unloading assembly, and the stacking platform group includes at least a first stacking platform and a second stacking platform.

[0006] In some embodiments, the first stacking stage and the second stacking stage are capable of moving 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.

[0007] In some embodiments, the solid-state battery stacking apparatus includes a first stacking unloading assembly and a second stacking unloading assembly, wherein the first stacking stage is movable between the stacking assembly and the first stacking unloading assembly, and the second stacking stage is movable between the stacking assembly and the second stacking unloading assembly.

[0008] 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.

[0009] In some embodiments, the stacking assembly includes a straightening table and a stacking robot, the stacking robot being used to transfer material on the straightening table to the stacking table assembly.

[0010] In some embodiments, the correction table includes a first correction table and a second correction table, the first correction table and the second correction table are spaced apart along a first direction and arranged on both sides of the stacking table group;

[0011] Both the first correction stage and the second correction stage can move along the first direction.

[0012] 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;

[0013] When the first stacking robot is located in the stacking table group, the second stacking robot is located in the correction table.

[0014] In some embodiments, the solid-state battery stacking apparatus 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 arranged at intervals along a 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 material on the first feeding conveyor belt to the first alignment table. The second feeding mechanism is used to transfer the material on the second feeding conveyor belt to the second alignment table.

[0015] In some embodiments, the solid-state battery stacking apparatus further includes a first feeding component and a second feeding component. The first feeding mechanism is further configured to transfer the material on the first feeding component to the first alignment table, and the second feeding mechanism is further configured to transfer the material on the second feeding component to the second alignment table.

[0016] In some embodiments, the first feeding component is a feeding clip used to provide a protective film.

[0017] 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.

[0018] In some embodiments, the solid-state battery stacking device further includes a first recycling bin and a second recycling bin, and the stacking robot is further configured to transfer materials on the first alignment table to the first recycling bin, and the stacking robot is further configured to transfer materials on the second alignment table to the second recycling bin.

[0019] The aforementioned solid-state battery stacking device is used for the stacking production of solid-state battery cells. The stacking platform group includes at least a first stacking platform and a second stacking platform. During actual stacking, when the stacking platform group moves to the stacking assembly, the stacking assembly can perform stacking operations on multiple stacking platforms, resulting in high stacking efficiency and helping to increase stacking output. Attached Figure Description

[0020] 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:

[0021] Figure 1 This is a schematic diagram illustrating the application of a solid-state battery stacking device in some embodiments.

[0022] The reference numerals in the detailed embodiments are as follows:

[0023] 100. Solid-state battery stacking device; 10. Stacking table assembly; 11. First stacking table; 12. Second stacking table; F. First direction; d1. Stacking loading position; d2. Stacking unloading position; 20. Stacking assembly; 21. Correction table; j1. Correction loading position; j2. Correction unloading position; 21a. First correction table; 21b. Second correction table; 22. Stacking robot; 31. First loading conveyor belt; 32. Second loading conveyor belt; 41. First loading mechanism; 42. Second loading mechanism; 51. First feeding assembly; 52. Second feeding assembly; 61. First recycling bin; 62. Second recycling bin; 70. Stacking unloading assembly; 71. First stacking unloading assembly; 72. Second stacking unloading assembly; 80. Stacking unloading conveyor belt. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] To improve the stacking efficiency of solid-state batteries, this application provides a solid-state battery stacking apparatus for the fabrication of solid-state batteries.

[0031] Please refer to Figure 1 The solid-state battery stacking device 100 proposed in this application includes a stacking assembly 20, a stacking stage group 10, and a stacking unloading assembly 70. The stacking stage group 10 is movable between the stacking assembly 20 and the stacking unloading assembly 70. The stacking stage group 10 includes at least a first stacking stage 11 and a second stacking stage 12.

[0032] The stacking stage group 10 includes at least two stacking stages, which are used to provide a place for stacking solid-state batteries. In one example, the stacking stage group 10 includes only a first stacking stage 11 and a second stacking stage 12. In another example, the stacking stage group 10 also includes more stacking stages.

[0033] The stacking stage 10 is movable between the stacking assembly 20 and the stacking unloading assembly 70. When the stacking stage 10 moves to the stacking assembly 20, the stacking assembly 20 can stack materials on the stacking stage of the stacking stage 10 to complete the stacking of solid-state battery cells on the stacking stage. Then, the stacking stage 10 moves to the stacking unloading assembly 70, where the stacking unloading assembly 70 removes the stacked structure of the prepared cells from the stacking stage 10 for the next process.

[0034] Optionally, each stacking stage in the stacking stage group 10 can move independently between the stacking assembly 20 and the stacking unloading assembly 70. Alternatively, each stacking stage in the stacking stage group 10 can move synchronously between the stacking assembly 20 and the stacking unloading assembly 70.

[0035] Understandably, the solid-state battery stacking apparatus 100 also includes a stacking platform moving assembly connected to the stacking platform 10, used to drive the stacking platform 10 to move between the stacking assembly 20 and the stacking unloading assembly 70. If each stacking platform in the stacking platform 10 moves independently, the stacking platform moving assembly may include multiple stacking platform moving drives corresponding one-to-one with the multiple stacking platforms. If each stacking platform in the stacking platform 10 moves synchronously, the stacking platform moving assembly may include a transmission component and a stacking platform moving drive component connected to each stacking platform via the transmission component. The stacking platform moving drive component may be, but is not limited to, a linear module.

[0036] The aforementioned solid-state battery stacking device 100 is used for the stacking production of solid-state battery cells. The stacking platform group 10 includes at least a first stacking platform 11 and a second stacking platform 12. During actual stacking, when the stacking platform group 10 moves to the stacking assembly 20, the stacking assembly 20 can perform stacking operations on multiple stacking platforms, resulting in high stacking efficiency and helping to increase stacking output.

[0037] Specifically, in this embodiment, the first stacking stage 11 and the second stacking stage 12 are capable of moving in the same direction between the stacking assembly 20 and the stacking unloading assembly 70. When the first stacking stage 11 is located at the stacking assembly 20, the second stacking stage 12 is located at the stacking unloading assembly 70.

[0038] The first stacking stage 11 and the second stacking stage 12 moving in the same direction means that they move in the same direction. For example, when the first stacking stage 11 moves to the left, the second stacking stage 12 also moves to the left. When the second stacking stage 11 moves to the right, the second stacking stage 12 also moves to the right.

[0039] Specifically, each stacking station has a stacking loading position d1 and a stacking unloading position d2. When the stacking station moves to the stacking assembly 20, it is located at the stacking loading position d1. When the stacking station moves to the stacking unloading assembly 70, it is located at the stacking unloading position d2. The stacking loading position d1 and the stacking unloading position d2 of each stacking station can be the same or different.

[0040] When the first stacking stage 11 and the second stacking stage 12 move synchronously, they move between their respective stacking loading position d1 and stacking unloading position d2. When the first stacking stage 11 is located at the stacking assembly 20 (i.e., at its stacking loading position d1), the second stacking stage 12 is located at the stacking unloading assembly 70 (i.e., at its stacking unloading position d2). Conversely, when the second stacking stage 12 is located at the stacking assembly 20 (i.e., at its stacking loading position d1), the first stacking stage 11 is located at the stacking unloading assembly 70 (i.e., at its stacking unloading position d2).

[0041] In practical applications, the first stacking stage 11 and the second stacking stage 12 alternately move to the stacking assembly 20 and then alternately move to the stacking unloading assembly 70. When the stacking assembly 20 is stacking on the first stacking stage 11, the unloading stacking assembly 20 unloads the stacked structure completed on the second stacking stage 12, further improving the stacking efficiency of the solid-state battery stacking device 100.

[0042] Optionally, the stacking loading positions d1 of the first stacking table 11 and the second stacking table 12 are the same. In this way, the stacking assembly 20 only needs to stack the stacking tables located at the same stacking loading position d1, which simplifies the stacking process of the stacking assembly 20 and reduces costs.

[0043] In a further embodiment, the first stacking stage 11 and the second stacking stage 12 are capable of moving synchronously between the stacking assembly 20 and the stacking unloading assembly 70.

[0044] Synchronous movement of the first stacking stage 11 and the second stacking stage 12 means that they move in the same direction and at the same speed, while their relative positions remain unchanged during the movement. This also simplifies motion control.

[0045] In a further embodiment, the solid-state battery stacking device 100 includes a first stacking unloading assembly 71 and a second stacking unloading assembly 72. The first stacking stage 11 is movable between the stacking assembly 20 and the first stacking unloading assembly 71, and the second stacking stage 12 is movable between the stacking assembly 20 and the second stacking unloading assembly 72.

[0046] That is, the stacking unloading position d2 of the first stacking platform 11 and the stacking unloading position d2 of the second stacking platform 12 are different. In one example, the stacking platform group 10 includes only the first stacking platform 11 and the second stacking platform 12, which are arranged side by side and move synchronously along the side-by-side direction. In the direction of movement, the stacking platform group 10 has at least one stacking loading position d1 and two stacking unloading positions d2, which are located on both sides of these stacking loading positions d1. During the movement, the first stacking platform 11 and the second stacking platform 12 alternately move to the corresponding stacking loading position d1 (if the stacking loading positions d1 are the same, they move to the same stacking loading position d1; if the stacking loading positions d1 are different, they move to different stacking loading positions d1), and when the first stacking platform 11 is located at the stacking loading position d1, the second stacking platform 12 is located at a stacking unloading position d2. When the second stacking platform 12 is located at the stack loading position d1, the first stacking platform 11 is located at the other stack unloading position d2. Of course, the stack loading positions d1 of the first stacking platform 11 and the second stacking platform 12 are different.

[0047] At this time, the stacking unloading position d2 of the first stacking stage 11 and the stacking unloading position d2 of the second stacking stage 12 are set to be different. When the two move back and forth along the moving direction, the first stacking stage 11 and the second stacking stage 12 can switch between the stacking loading position d1 and the stacking unloading position d2. The moving stroke is short, the moving time is saved, and the production efficiency of the solid-state battery stacking device 100 is improved.

[0048] The stacking unloading assembly 70 may include a stacking unloading robot, which picks up the stacked structure from each stacking table of the stacking table group 10 and transfers it to the next process. Optionally, the solid-state battery stacking device 100 also includes a stacking unloading conveyor belt 80, and each stacking unloading assembly 70 is used to transfer the stacked structure to the stacking unloading conveyor belt 80 and transport it to the next process via the stacking unloading conveyor belt 80.

[0049] In some embodiments, the stacking assembly 20 includes a straightening table 21 and a stacking robot 22, the stacking robot 22 being used to transfer material on the straightening table 21 to the stacking table assembly 10.

[0050] After the materials are transported to the alignment table 21 by manpower or other equipment, the alignment table 21 is used to correct and adjust the position of the materials located on it, so that the materials are accurately positioned on the stacking table. The specific structure of the alignment table 21 can be referred to conventional settings.

[0051] After the material position is corrected, it is picked up by the stacking robot 22 and transferred to the stacking table of the stacking table group 10 for stacking. Because the material position is corrected, the stacking position of the material on the stack is accurate, which improves the yield of stacked products.

[0052] In a specific embodiment, the correction stage 21 includes a first correction stage 21a and a second correction stage 21b. The first correction stage 21a and the second correction stage 21b are spaced apart along the first direction F and arranged on both sides of the stacking stage group 10.

[0053] In the solid-state battery stacking process, electrodes of different polarities are stacked on the same stacking platform to form a stacked structure for cell fabrication. In practical applications, the first correction stage 21a and the second correction stage 21b on both sides of the stacking platform 10 correct the positions of different materials respectively. When the first correction stage 21a finishes correction, as the stacking assembly 20 stacks the corrected material onto the stacking platform, another material can be corrected at the second correction stage 21b. In this way, the first correction stage 21a and the second correction stage 21b can continuously provide the stacking platform 10 with corrected material, improving stacking efficiency.

[0054] In a further embodiment, both the first correction stage 21a and the second correction stage 21b are capable of moving along the first direction F.

[0055] In one example, the stacking stages in the stacking stage group 10 are arranged side by side, and the first direction F is perpendicular to the side-by-side direction of the stacking stages. Understandably, both the side-by-side direction and the first direction F are horizontal.

[0056] In practical applications, when the first correction table 21a and the second correction table 21b move along the first direction F, they can switch between their respective correction loading position j1 ​​and correction unloading position j2. When located at the correction loading position j1, the first correction table 21a and the second correction table 21b can receive materials transported manually or by other equipment. During the movement from the correction loading position j1 ​​to the correction unloading position j2, the first correction table 21a and the second correction table 21b can correct the deviation while moving, thereby improving the production efficiency of the solid-state battery stacking device 100.

[0057] In some embodiments, the stacking robot 22 includes a first stacking robot (not shown) and a second stacking robot (not shown), both of which are movable between the alignment table 21 and the stacking table group 10. When the first stacking robot is located in the stacking table group 10, the second stacking robot is located in the alignment table 21.

[0058] In this way, by using two stacking robots 22, the two tasks of stacking and picking up and correcting the material in place can be carried out simultaneously, and the stacking and material transfer can be carried out simultaneously, which further improves the production efficiency of the solid-state battery stacking device 100.

[0059] When the alignment table 21 includes a first alignment table 21a and a second alignment table 21b, a first stacking robot can move between the first alignment table 21a and the stacking table group 10 to transfer the material that has been aligned to the correct position on the first alignment table 21a to the stacking table group 10. A second stacking robot can move between the second alignment table 21b and the stacking table group 10 to transfer the material that has been aligned to the correct position on the second alignment table 21b to the stacking table group 10.

[0060] In some embodiments, the solid-state battery stacking apparatus 100 includes a first feeding conveyor belt 31, a second feeding conveyor belt 32, a first feeding mechanism 41, and a second feeding mechanism 42. The first feeding conveyor belt 31 and the second feeding conveyor belt 32 are spaced apart along a first direction F. A correction table 21 and a stacking table group 10 are located between the first feeding conveyor belt 31 and the second feeding conveyor belt 32. The first feeding mechanism 41 is used to transfer the material on the first feeding conveyor belt 31 to the first correction table 21a, and the second feeding mechanism 42 is used to transfer the material on the second feeding conveyor belt 32 to the second correction table 21b.

[0061] The first feeding conveyor belt 31 and the second feeding conveyor belt 32 extend approximately in a direction perpendicular to the first direction F. In practical applications, taking the first feeding conveyor belt 31 for transporting negative electrode materials and the second feeding conveyor belt 32 for transporting positive electrode materials as an example, the first feeding mechanism 41 transfers the negative electrode materials from the first feeding conveyor belt 31 to the first correction table 21a for correction, and then the stacking robot 22 (such as the first stacking robot) transfers the material that has been corrected at the first correction table 21a to the stacking table of the stacking table group 10 for stacking. The second feeding mechanism 42 transfers the positive electrode materials from the second feeding conveyor belt 32 to the second correction table 21b for correction, and then the stacking robot 22 (such as the second stacking robot) transfers the material that has been corrected at the second correction table 21b to the stacking table of the stacking table group 10 for stacking. For the stacking table located at stacking loading position d1, when the first stacking robot completes the stacking of negative electrode material and exits the stacking table, the second stacking robot picks up the positive electrode material and stacks it on the stacking table.

[0062] At this time, the solid-state battery stacking device 100, by configuring the first feeding conveyor belt 31 and the second feeding conveyor belt 32, as well as the first feeding mechanism 41 and the second feeding mechanism 42, can realize the independent transportation and independent feeding of positive electrode materials and negative electrode materials, which helps to accelerate the production efficiency of the solid-state battery stacking device 100.

[0063] It is worth noting that at least one of the positive electrode material and the negative electrode material has an electrolyte layer on its surface, and at least one of them carries a frame. Specifically, the positive electrode material can be a positive electrode sheet without a frame, and the negative electrode material can be a negative electrode sheet with electrolyte layers on both sides and a frame.

[0064] In some embodiments, the solid-state battery stacking apparatus 100 further includes a first feeding component 51 and a second feeding component 52. The first feeding mechanism 41 is also used to transfer the material on the first feeding component 51 to the first alignment table 21a, and the second feeding mechanism 42 is also used to transfer the material on the second feeding component 52 to the second alignment table 21b.

[0065] In the process of solid-state battery stacking, a protective film (usually, but not limited to, PET material) is often laid on the bottom and top layers of the stacked structure to facilitate the transfer of the stacked structure. In addition, in some stacking methods, such as when the negative electrode material transported by the first feeding conveyor belt 31 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.

[0066] In practical applications, the first feeding component 51 can provide the protective film, and the second feeding component 52 can provide the materials required for stacking, such as the electrode sheets (here, the electrode sheets refer to the negative or positive electrode sheets without composite frames, which can be flexibly set according to the specific process). This achieves automatic feeding of certain materials, eliminating the need for manual feeding and further improving the automation of the solid-state battery stacking device 100. Moreover, the first feeding mechanism 41 and the second feeding mechanism 42 can not only transfer the materials on each feeding conveyor belt to the correction table 21, but also transfer the materials on each feeding component to the correction table 21, resulting in high utilization, reduced number of mechanisms, and lower costs.

[0067] In one specific embodiment, reference is made to Figure 1 The first feeding assembly 51 and the first alignment table 21a are arranged along the first direction F between the stacking table group 10 and the first feeding conveyor belt 31. The second feeding assembly 52 and the second alignment table 21b are arranged along the first direction F between the stacking table group 10 and the second feeding conveyor belt 32. The first feeding mechanism 41 includes a first rotary manipulator, which can be used to transfer materials from the first feeding assembly 51 to the first alignment table 21a, and also to transfer materials from the first feeding conveyor belt 31 to the first alignment table 21a. The second feeding mechanism 42 includes a second rotary manipulator, which can be used to transfer materials from the second feeding assembly 52 to the second alignment table 21b, and also to transfer materials from the second feeding conveyor belt 32 to the second alignment table 21b. Using a rotary manipulator to transfer materials results in a small footprint, which helps to reduce the layout difficulty of the solid-state battery stacking device 100.

[0068] In a specific embodiment, the first feeding component 51 is a feeding clip. In another embodiment, the second feeding component 52 is a feeding clip. A feeding clip typically includes a hopper for storing materials and a pushing structure to eject the materials from the hopper, offering the advantage of a small footprint. The specific structure of the feeding clip can be referenced from conventional designs in the art. Storing a certain amount of material in the clip's hopper not only reduces the footprint but also allows for multiple stacking operations with a single loading, reducing the number of material loading cycles and improving the overall efficiency of the device.

[0069] In one embodiment, the first feeding assembly 51 is used to provide a protective film. In this case, the first feeding assembly 51 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.

[0070] In one embodiment, the second feeding assembly 52 is used to provide the negative electrode sheet, the first feeding conveyor belt 31 is used to provide the positive electrode sheet, and the second feeding conveyor belt 32 is used to provide the negative electrode sheet with a composite frame. In this case, the second feeding assembly 51 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 31 is the positive electrode sheet without a composite frame.

[0071] In some embodiments, refer to Figure 1 The solid-state battery stacking device 100 also includes a first recycling bin 61 and a second recycling bin 62. The stacking robot 22 is also used to transfer the material on the first alignment table 21a to the first recycling bin 61, and the stacking robot 22 is also used to transfer the material on the second alignment table 21b to the second recycling bin 62.

[0072] The first recycling bin 61 is used to recycle materials that fail to meet the correction requirements at the first correction table 21a. The second recycling bin 62 is used to recycle materials that fail to meet the correction requirements at the second correction table 21b. Optionally, the first recycling bin 61 and the second recycling bin 62 are arranged on both sides of the stacking table group 10 along the first direction F, and between the first feeding conveyor belt 31 and the second feeding conveyor belt 32 along the first direction F. In this case, the solid-state battery stacking device 100 also has the function of waste recycling, making its functions more comprehensive.

[0073] Specifically, when the stacking robot 22 includes a first stacking robot and a second stacking robot, the first stacking robot transfers the defective material from the first correction table 21a to the first recycling bin 61, and the second stacking robot transfers the defective material from the second correction table 21b to the second recycling bin 62.

[0074] Optionally, the stacking robot 22 is arranged above each correction table 21, the first recovery bin 61, the second recovery bin 62 and the stacking table group 10. Its movement is not affected by the arrangement of these mechanisms, which helps to simplify the layout of the entire device.

[0075] Optionally, refer to Figure 1 The first feeding assembly 51, the first recycling bin 61, and the first alignment table 21a are arranged along the first direction F between the first feeding assembly and the stacking table group 10. The first feeding assembly 51 and the first recycling bin 61 are arranged on both sides of the first alignment table 21a along a second direction, which is approximately perpendicular to the first direction F. Further, the first feeding assembly 51 and the first recycling bin 61 are staggered in the first direction F, with the first feeding assembly 51 located close to the first feeding conveyor belt 31 and the first recycling bin 61 located close to the stacking table group 10.

[0076] Optionally, refer to Figure 1The second feeding assembly 52, the second recycling bin 62, and the second alignment table 21b are arranged along the first direction F between the second feeding assembly and the stacking table group 10, and the second feeding assembly 52 and the second recycling bin 62 are arranged on both sides of the second alignment table 21b along the second direction. Further, the second feeding assembly 52 and the second recycling bin 62 are staggered in the first direction F, with the second feeding assembly 52 located close to the second feeding conveyor belt 32 and the second recycling bin 62 located close to the stacking table group 10.

[0077] In one application example, the operation of the solid-state battery stacking device 100 is roughly as follows:

[0078] 1) Move the first stacking table 11 to the stacking and feeding position d1. The first stacking table 11 is the target stacking table.

[0079] 2) The first feeding mechanism 41 obtains PET film from the first feeding assembly 51 loaded with PET film and transfers it to the first correction table 21a. The first stacking robot transfers the PET film that has been corrected at the first correction table 21a to the target stacking table located at the stacking feeding position d1.

[0080] 3) The first feeding mechanism 41 transfers the positive electrode material on the first feeding conveyor belt 31 to the first correction table 21a, and the second feeding mechanism 42 transfers the negative electrode material on the second feeding conveyor belt 32 to the second correction table 21b. Then, the first stacking robot stacks the positive electrode material that has been corrected at the first correction table 21a to the target stacking table, and the second stacking robot stacks the negative electrode material that has been corrected at the second correction table 21b to the target stacking table. In this way, the positive electrode material and the negative electrode material are stacked alternately at the target stacking table. During this process, the first stacking robot transfers the positive electrode material that has not been corrected at the first correction table 21a to the first recycling bin 61, and the second stacking robot transfers the negative electrode material that has not been corrected at the second correction table 21b to the second recycling bin 62. The positive electrode material is a positive electrode sheet without a composite frame, and the negative electrode material is a negative electrode sheet with a composite frame.

[0081] 4) The second feeding mechanism 42 transfers the negative electrode sheet without composite frame loaded at the second feeding component 52 to the second correction table 21b, and the second stacking robot transfers the negative electrode sheet without composite frame that has been corrected on the second correction table 21b to the target stacking table.

[0082] 5) The first feeding mechanism 41 obtains the PET film from the first feeding assembly 51 loaded with PET film and transfers it to the first correction table 21a. The first stacking robot transfers the PET film that has been corrected at the first correction table 21a to the target stacking table located at the stacking feeding position d1 to obtain the stacked structure.

[0083] 6) Move the first stacking stage 11 to the stacking unloading position d2. The stacking unloading assembly 70 unloads the stacked structure on the first stacking stage 11 so that the stacked structure can be hot-pressed / cold-pressed / encapsulated in the next process to form a battery cell. At the same time, control the second stacking stage 12 to move to the stacking station. The second stacking stage 12 is used as the target stacking stage again, and 2) to 5) are executed until the stacked structure is formed at the second stacking stage 12.

[0084] 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.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are 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 stacking device (100), characterized in that, The solid-state battery stacking device (100) includes a stacking assembly (20), a stacking stage group (10), and a stacking unloading assembly (70). The stacking stage group (10) is movable between the stacking assembly (20) and the stacking unloading assembly (70). The stacking stage group (10) includes at least a first stacking stage (11) and a second stacking stage (12).

2. The solid-state battery stacking device (100) according to claim 1, characterized in that, The first stacking stage (11) and the second stacking stage (12) are capable of moving in the same direction between the stacking assembly (20) and the stacking unloading assembly (70), with the first stacking stage (11) located at the stacking assembly (20) and the second stacking stage (12) located at the stacking unloading assembly (70).

3. The solid-state battery stacking device (100) according to claim 2, characterized in that, The solid-state battery stacking device (100) includes a first stacking unloading assembly (71) and a second stacking unloading assembly (72). The first stacking stage (11) is movable between the stacking assembly (20) and the first stacking unloading assembly (71), and the second stacking stage (12) is movable between the stacking assembly (20) and the second stacking unloading assembly (72).

4. The solid-state battery stacking device (100) according to claim 2, characterized in that, The first stacking stage (11) and the second stacking stage (12) are capable of moving synchronously between the stacking assembly (20) and the stacking unloading assembly (70).

5. The solid-state battery stacking apparatus (100) according to any one of claims 1-4, characterized in that, The stacking assembly (20) includes a straightening table (21) and a stacking robot (22), which is used to transfer the material on the straightening table (21) to the stacking table assembly (10).

6. The solid-state battery stacking device (100) according to claim 5, characterized in that, The correction stage (21) includes a first correction stage (21a) and a second correction stage (21b). The first correction stage (21a) and the second correction stage (21b) are spaced apart along a first direction (F) and arranged on both sides of the stacking stage group (10). Both the first correction stage (21a) and the second correction stage (21b) can move along the first direction (F).

7. The solid-state battery stacking device (100) according to claim 5, characterized in that, The stacking robot (22) includes a first stacking robot and a second stacking robot, both of which are capable of moving between the correction table (21) and the stacking table group (10). When the first stacking robot is located at the stacking table group (10), the second stacking robot is located at the correction table (21).

8. The solid-state battery stacking device (100) according to claim 6, characterized in that, The solid-state battery stacking device (100) includes a first feeding conveyor belt (31), a second feeding conveyor belt (32), a first feeding mechanism (41), and a second feeding mechanism (42). The first feeding conveyor belt (31) and the second feeding conveyor belt (32) are arranged at intervals along a first direction (F). The correction table (21) and the stacking table group (10) are located between the first feeding conveyor belt (31) and the second feeding conveyor belt (32). The first feeding mechanism (41) is used to transfer the material on the first feeding conveyor belt (31) to the first correction table (21a). The second feeding mechanism (42) is used to transfer the material on the second feeding conveyor belt (32) to the second correction table (21b).

9. The solid-state battery stacking device (100) according to claim 8, characterized in that, The solid-state battery stacking device (100) further includes a first feeding component (51) and a second feeding component (52). The first feeding mechanism (41) is also used to transfer the material on the first feeding component (51) to the first correction table (21a), and the second feeding mechanism (42) is also used to transfer the material on the second feeding component (52) to the second correction table (21b).

10. The solid-state battery stacking apparatus (100) according to claim 9, characterized in that, The first feeding component (51) is a feeding clip used to provide a protective film.

11. The solid-state battery stacking apparatus (100) according to claim 9, characterized in that, The second feeding assembly (52) is a feeding clip used to provide negative electrode sheets, the first feeding conveyor belt (31) is used to provide positive electrode sheets, and the second feeding conveyor belt (32) is used to provide negative electrode sheets with composite frames.

12. The solid-state battery stacking apparatus (100) according to claim 6, characterized in that, The solid-state battery stacking device (100) further includes a first recycling bin (61) and a second recycling bin (62). The stacking robot (22) is also used to transfer the material on the first alignment table (21a) to the first recycling bin (61), and the stacking robot (22) is also used to transfer the material on the second alignment table (21b) to the second recycling bin (62).

Images