An electrode sheet manufacturing device and a solid-state battery manufacturing apparatus

Abstract

The application relates to an electrode sheet manufacturing device and a solid-state battery manufacturing device. The electrode sheet manufacturing device comprises: a unwinding assembly configured to output an electrode sheet material belt downstream; a manufacturing assembly comprising a cutting mechanism arranged downstream of the unwinding assembly and a conveying mechanism arranged on the downstream side of the cutting mechanism; and an electrode lug taping assembly arranged on a material conveying path of the conveying mechanism. In this way, the electrode lug of the electrode sheet material produced by the electrode sheet manufacturing device is taped with adhesive tape, so that when the electrode sheet material is subsequently stacked to form an electrode core of a solid-state battery, the electrode lug on the electrode sheet material can be insulated from the adjacent electrode sheet material with opposite polarity by the adhesive tape, thereby avoiding short circuit phenomenon and improving the safety of the solid-state battery.

Description

Technical Field

[0001] This application relates to the field of solid-state battery manufacturing equipment technology, specifically to an electrode sheet making apparatus and solid-state battery manufacturing 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, and then stacking these sheets on a stacking table to form a solid-state battery cell. However, during stacking, the positive tab on the positive electrode sheet can easily come into contact with the negative electrode sheet, causing a short circuit and significantly reducing the safety of solid-state batteries. Utility Model Content

[0004] Therefore, it is necessary to provide an electrode sheet making apparatus and solid-state battery manufacturing equipment that can prevent short circuits caused by contact between the tab and an electrode sheet of opposite polarity, thereby improving the safety of solid-state batteries.

[0005] An electrode preparation apparatus, comprising:

[0006] The unwinding assembly is used to unwind and output the electrode strip downstream;

[0007] A film-making assembly includes a cutting mechanism and a conveying mechanism, the cutting mechanism being arranged downstream of the unwinding assembly, and the conveying mechanism being arranged downstream of the cutting mechanism; and

[0008] The tab adhesive assembly is arranged on the material conveying path of the conveying mechanism.

[0009] In some embodiments, the cutting mechanism is used to cut the passing electrode strip into electrode sheets, the conveying mechanism is used to receive and convey the electrode sheets, and the tab adhesive assembly is used to attach adhesive tape to the tabs of the electrode sheets on the conveying mechanism.

[0010] In some embodiments, the electrode sheet is the positive electrode sheet of a solid-state battery.

[0011] In some embodiments, the sheet-making assembly further includes a first visual inspection mechanism arranged on the material conveying path of the conveying mechanism and located upstream of the tab bonding assembly.

[0012] In some embodiments, the tab adhesive assembly includes a motion drive mechanism and an adhesive application mechanism mounted on the drive end of the motion drive mechanism, wherein the first visual detection mechanism is communicatively connected to the motion drive mechanism.

[0013] In some embodiments, the first vision detection mechanism is used to detect the position of the electrode sheet on the conveying mechanism, and the motion driving mechanism is used to drive the adhesive applicator to adjust its position according to the detection result of the first vision detection mechanism.

[0014] In some embodiments, at least two electrode adhesive assemblies are provided, and the motion drive mechanism of each electrode adhesive assembly is communicatively connected to the first visual detection mechanism.

[0015] In some embodiments, each of the tab adhesive assembly is arranged sequentially along the material conveying path of the conveying mechanism, wherein any two adjacent tab adhesive assemblies are a first tab adhesive assembly and a second tab adhesive assembly located downstream of the first tab adhesive assembly; the first vision inspection mechanism is used to detect the position of the electrode sheet on the conveying mechanism;

[0016] The motion drive mechanism of the first electrode tab adhesive assembly is used to drive the adhesive application mechanism to adjust its position according to the detection result of the first vision detection mechanism on the Nth electrode sheet; when the Nth electrode sheet is delivered to the first electrode tab adhesive assembly, the motion drive mechanism of the first electrode tab adhesive assembly drives the adhesive application mechanism to apply adhesive to the electrode tab of the Nth electrode sheet and drives the adhesive application mechanism to reset.

[0017] The motion drive mechanism of the second electrode tab adhesive assembly is used to drive the adhesive application mechanism to adjust its position according to the detection result of the first vision detection mechanism on the N+1th electrode sheet; when the N+1th electrode sheet is delivered to the second electrode tab adhesive assembly, the motion drive mechanism of the second electrode tab adhesive assembly drives the adhesive application mechanism to apply adhesive to the electrode tab of the N+1th electrode sheet and drives the adhesive application mechanism to reset.

[0018] In some embodiments, the sheet-making assembly further includes a second vision inspection mechanism arranged on the material conveying path of the conveying mechanism and located upstream of the tab bonding assembly.

[0019] In some embodiments, the second visual inspection mechanism is used to detect surface defects in the electrode sheets on the conveying mechanism.

[0020] In some embodiments, the sheet-making assembly further includes a dust removal mechanism arranged on the conveying path of the conveying mechanism and located upstream of the tab bonding assembly.

[0021] In some embodiments, the conveying mechanism includes a vacuum belt conveyor.

[0022] In some embodiments, the electrode forming apparatus further includes a cutting component and a positioning component, both of which are arranged between the downstream of the unwinding component and the upstream of the forming component, with the cutting component located upstream of the positioning component.

[0023] In some embodiments, the cutting component is used to cut a positioning notch on the passing electrode strip, and the positioning component is used to position the electrode strip using the positioning notch on the passing electrode strip.

[0024] In some embodiments, the sheet-making assembly further includes a main drive traction mechanism disposed between the downstream of the unwinding assembly and the upstream of the cutting mechanism for traction of the passing electrode strip toward the cutting mechanism.

[0025] A solid-state battery manufacturing apparatus includes a stacking device and an electrode forming device as described in any of the above embodiments.

[0026] In actual use, the aforementioned electrode sheet forming apparatus and solid-state battery manufacturing equipment unwind electrode sheet material from the unwinding assembly to the cutting mechanism of the forming assembly, allowing the electrode sheet material to pass through the cutting mechanism and reach the upstream end of the conveying mechanism. The cutting mechanism cuts the passing electrode sheet material to form electrode sheets, at least partially located on the conveying mechanism. The conveying mechanism then transports the electrode sheets downstream to the tab bonding assembly, where the tab bonding assembly applies adhesive tape to the tabs of the electrode sheets.

[0027] Thus, the tabs of the electrode sheets produced by the electrode sheet making device are attached with adhesive tape. Therefore, when the electrode sheets are subsequently stacked to form the cells of a solid-state battery, the tabs on the electrode sheets can be insulated from the adjacent electrode sheets with opposite polarity by the adhesive tape, avoiding short circuits and improving the safety of solid-state batteries. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the electrode preparation apparatus in one embodiment of this application. Detailed Implementation

[0029] 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.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, 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.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can 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.

[0033] 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.

[0034] It should be noted that when an element is referred to as being "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 considered to be "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.

[0035] Please see Figure 1 This application provides an electrode sheet making apparatus, including an unwinding assembly 10, a sheet making assembly 20, and an electrode tab bonding assembly 30. The unwinding assembly 10 is used to unwind and output electrode sheet material A downstream. The sheet making assembly 20 includes a cutting mechanism 21 and a conveying mechanism 22. The cutting mechanism 21 is arranged downstream of the unwinding assembly 10 and is used to cut the passing electrode sheet material A into electrode sheet material C. The conveying mechanism 22 is arranged downstream of the cutting mechanism 21 and is used to receive the electrode sheet material C formed by the cutting mechanism 21 and convey the received electrode sheet material C downstream. The electrode tab bonding assembly 30 is arranged on the conveying path of the conveying mechanism 22, so that the conveying mechanism 22 can convey the electrode sheet material C thereon through the electrode tab bonding assembly 30. The electrode tab bonding assembly 30 is used to bond adhesive tape to the electrode tabs of the passing electrode sheet material C. It should be noted that the electrode sheet C can be the positive electrode sheet of a solid-state battery, and the tabs on the electrode sheet C are positive tabs. Of course, in other embodiments, the electrode sheet C can also be the negative electrode sheet of a solid-state battery, and the tabs on the electrode sheet C are negative tabs.

[0036] In actual use, the above-described electrode forming apparatus unwinds electrode strip A from the unwinding assembly 10 to the cutting mechanism 21 of the forming assembly 20, allowing electrode strip A to pass through the cutting mechanism 21 and reach the upstream end of the conveying mechanism 22. The cutting mechanism 21 cuts the passing electrode strip A to form electrode sheet C, at which point the electrode sheet C is at least partially located on the conveying mechanism 22. The conveying mechanism 22 then transports the electrode sheet C downstream to the tab bonding assembly 30, where the tab bonding assembly 30 applies adhesive tape to the tabs of the electrode sheet C.

[0037] Thus, the tabs of the electrode material C produced by the electrode sheet making device are attached with adhesive tape. Therefore, when the electrode material C is subsequently stacked to form a solid-state battery cell, the tabs on the electrode material C can be insulated from the adjacent electrode material C with opposite polarity by the adhesive tape, avoiding short circuits and improving the safety of solid-state batteries.

[0038] In embodiments of this application, the sheet-making assembly 20 further includes a first visual inspection mechanism 26. This first visual inspection mechanism 26 is arranged on the material conveying path of the conveying mechanism 22 and is located upstream of the tab-applying assembly 30. Thus, the first visual inspection mechanism 26 performs position detection on the electrode sheet material C on the conveying mechanism 22, thereby obtaining the position information of the tabs on the electrode sheet material C. This allows the tab-applying assembly 30 to adjust its position based on the tab position information detected by the first visual inspection mechanism 26, ensuring that the tab-applying assembly 30 can accurately apply adhesive tape to the tabs of the electrode sheet material C as it passes through, greatly improving the positional accuracy of the adhesive application. Optionally, the first visual inspection mechanism 26 can be a camera.

[0039] Specifically, in this embodiment, the tab applicator assembly 30 includes a motion drive mechanism 31 and an applicator 32 mounted on the drive end of the motion drive mechanism 31. The motion drive mechanism 31 is communicatively connected to the first vision detection mechanism 26. The motion drive mechanism 31 can drive the applicator 32 to adjust its position based on the tab position information detected by the first vision detection mechanism 26, ensuring that when the electrode sheet C passes through the applicator 32, the applicator 32 can accurately apply the tape to the tab of the electrode sheet C.

[0040] Furthermore, the motion drive mechanism 31 can drive the adhesive applicator 32 to move along a first direction, a second direction, and a third direction, and these three directions are perpendicular to each other. Thus, by using the motion drive mechanism 31 to drive the adhesive applicator 32 to move along the first direction, the second direction, and the third direction, the position of the adhesive applicator 32 and the adhesive applicator action can be achieved.

[0041] Specifically Figure 1 In the illustrated embodiment, the first direction is the left-right direction, the second direction is the direction perpendicular to the paper surface, and the third direction is the up-down direction. Thus, in actual use, the conveying mechanism 22 conveys the electrode sheet C to the first visual inspection mechanism 26, which performs position detection on the electrode sheet C to obtain the position information of the electrode tabs. Then, the motion driving mechanism 31 drives the adhesive applicator 32 to move along the first and second directions based on the electrode tab position information detected by the first visual inspection mechanism 26, thereby adjusting the position of the adhesive applicator 32. Next, the conveying mechanism 22 conveys the electrode sheet to the adhesive applicator 32, at which point the tape on the adhesive applicator 32 is aligned with the electrode tabs of the electrode sheet C in the third direction. Then, the motion driving mechanism 31 drives the adhesive applicator 32 to move along the third direction and attaches the tape to the electrode tabs of the electrode sheet C.

[0042] It should be noted that the number of tab-applying components 30 is not limited to one. In other embodiments, the number of tab-applying components 30 can be multiple (i.e., two or more), and the motion drive mechanism 31 of each tab-applying component 30 is communicatively connected to the first vision detection mechanism 26. In this way, each tab-applying component 30 can be independently adjusted in position and applied with adhesive, which is beneficial to improving production efficiency.

[0043] Specifically, in this embodiment, each tab adhesive assembly 30 is arranged sequentially along the material conveying path of the conveying mechanism 22, wherein any two adjacent tab adhesive assemblies 30 are respectively a first tab adhesive assembly and a second tab adhesive assembly located downstream of the first tab adhesive assembly. A first visual inspection mechanism 26 is used to detect the position of the electrode sheet C on the conveying mechanism 22.

[0044] The motion drive mechanism 31 of the first electrode tab adhesive assembly is used to drive the adhesive application mechanism 32 to adjust its position according to the detection result of the Nth electrode sheet C by the first vision detection mechanism 26. When the Nth electrode sheet C is delivered to the first electrode tab adhesive assembly, the electrode tab of the Nth electrode sheet C is located below the adhesive application mechanism of the first electrode tab adhesive assembly. At this time, the motion drive mechanism 31 of the first electrode tab adhesive assembly drives the adhesive application mechanism 32 to apply adhesive to the electrode tab of the Nth electrode sheet C, and then drives the adhesive application mechanism 32 to reset.

[0045] The motion drive mechanism 31 of the second tab adhesive assembly is used to drive the adhesive application mechanism 32 to adjust its position according to the detection result of the N+1th electrode sheet C by the first vision detection mechanism 26. When the N+1th electrode sheet C is delivered to the second tab adhesive assembly, the tab of the N+1th electrode sheet C is located below the adhesive application mechanism of the second tab adhesive assembly. At this time, the motion drive mechanism 31 of the second tab adhesive assembly drives the adhesive application mechanism 32 to apply adhesive to the tab of the N+1th electrode sheet C, and then drives the adhesive application mechanism 32 to reset. In this way, two adjacent tab adhesive assemblies 30 can be independently adjusted in position and applied adhesive, and two adjacent tab adhesive assemblies 30 apply adhesive to the tabs on different electrode sheets C one after the other, avoiding interference between them due to their close proximity.

[0046] It should be noted that the adhesive application mechanism 32 includes an adsorption plate, which can use vacuum adsorption to pick up the adhesive tape, and then, under the driving action of the motion drive mechanism 31, stick the picked-up adhesive tape onto the tab of the electrode material C. Of course, the adhesive application mechanism 32 can also use other mechanisms, as long as they can achieve the goal of sticking the adhesive tape onto the tab of the electrode material C, and there are no limitations here.

[0047] In embodiments of this application, the wafer-making assembly 20 further includes a main drive traction mechanism 23. This main drive traction mechanism 23 is arranged downstream of the unwinding assembly 10 and upstream of the cutting mechanism 21, and is positioned close to the cutting mechanism 21. The main drive traction mechanism 23 is used to traction the passing electrode strip A towards the cutting mechanism 21. Thus, each time the main drive traction mechanism 23 tractions the electrode strip A a certain distance towards the downstream cutting mechanism 21, it ensures that the cutting position of the cutting mechanism 21 is accurate each time, and that the length of the electrode sheet C formed by cutting the electrode strip A is consistent.

[0048] Specifically, in this embodiment, the conveying mechanism 22 is a vacuum belt conveyor, which can simultaneously convey the electrode sheet material C downstream and fix it in place using vacuum adsorption, preventing the electrode sheet material C from shifting position relative to the conveyor belt or even falling off during downstream conveying. Thus, in actual use, firstly, the main drive traction mechanism 23 pulls the electrode sheet material belt A a certain distance towards the cutting mechanism 21, so that the starting end of the electrode sheet material belt A reaches the conveyor belt of the conveying mechanism 22 and is adsorbed and fixed thereon; then, the cutting mechanism 21 cuts the electrode sheet material belt A. At this point, a portion of the electrode sheet material C is adsorbed and fixed on the conveyor belt of the conveying mechanism 22; then, the conveyor belt of the conveying mechanism 22 moves downstream, thereby driving the electrode sheet material C downstream as well.

[0049] In embodiments of this application, the sheet-making assembly 20 further includes a second visual inspection mechanism 27. The second visual inspection mechanism 27 is arranged on the material conveying path of the conveying mechanism 22 and is located upstream of the tab-applying assembly 30, so that the electrode sheet material C on the conveying mechanism 22 passes through the second visual inspection mechanism 27 first, and then through the tab-applying assembly 30 during the conveying process. Thus, in actual use, the conveying mechanism 22 conveys the electrode sheet material C sequentially through the second visual inspection mechanism 27 and the tab-applying assembly 30. When the conveying mechanism 22 conveys the electrode sheet material C to the second visual inspection mechanism 27, the second visual inspection mechanism 27 performs surface defect detection on the electrode sheet material C. When the conveying mechanism 22 conveys the electrode sheet material C to the tab-applying assembly 30, the tab-applying assembly 30 applies adhesive tape to the tabs of the electrode sheet material C. Optionally, the second visual inspection mechanism 27 can be a camera.

[0050] It should be noted that electrode sheet C with surface defects detected by the second vision inspection agency 27 will be rejected in subsequent processes to ensure that the electrode sheet C flowing into the stacking station is qualified in terms of size and surface quality, thereby greatly improving the quality of solid-state batteries.

[0051] Specifically, in this embodiment, the electrode assembly 20 further includes a dust removal mechanism 25, which is arranged on the material conveying path of the conveying mechanism 22 and located upstream of the tab bonding assembly 30. Thus, in actual use, the conveying mechanism 22 can convey the electrode sheet material C through the dust removal mechanism 25. When the conveying mechanism 22 conveys the electrode sheet material C through the dust removal mechanism 25, the dust removal mechanism 25 performs dust removal treatment on the electrode sheet material C, thereby ensuring that the surface cleanliness of the electrode sheet material C meets the process requirements.

[0052] Specifically, in this embodiment, the electrode assembly 20 further includes an antistatic and iron-removing mechanism 24. This antistatic and iron-removing mechanism 24 is arranged on the material conveying path of the conveying mechanism 22, and is located upstream of the tab bonding assembly 30. Thus, in actual use, the conveying mechanism 22 can convey the electrode sheet material C through the antistatic and iron-removing mechanism 24. When the conveying mechanism 22 conveys the electrode sheet material C through the antistatic and iron-removing mechanism 24, the mechanism performs antistatic and iron-removing treatment on the electrode sheet material C.

[0053] Optionally, along the material conveying path of the conveying mechanism 22, the static electricity removal and iron pin removal mechanism 24, the dust removal mechanism 25, the first vision inspection mechanism 26, the second vision inspection mechanism 27, and the tab adhesive assembly 30 are arranged sequentially. That is, the conveying mechanism 22 can convey the electrode sheet material C sequentially through the static electricity removal and iron pin removal mechanism 24, the dust removal mechanism 25, the first vision inspection mechanism 26, the second vision inspection mechanism 27, and the tab adhesive assembly 30.

[0054] In the embodiments of this application, the electrode sheet making apparatus further includes a cutting component 40 and a positioning component 50. Both the cutting component 40 and the positioning component 50 are arranged downstream of the unwinding component 10 and upstream of the main drive traction mechanism 23 of the sheet making component 20, with the cutting component 40 located upstream of the positioning component 50. The electrode sheet material A unwound from the unwinding component 10 passes sequentially through the cutting component 40, the positioning component 50, the main drive traction mechanism 23, and the cutting mechanism 21. Thus, the cutting component 40 cuts the passing electrode sheet material A, forming a positioning notch on the electrode sheet material A. The positioning component 50 uses the positioning notch on the electrode sheet material A to position the electrode sheet material A, ensuring that the length of the electrode sheet material C formed by the cutting mechanism 21 cutting the electrode sheet material A meets the accuracy requirements. It should be noted that the positioning notch can be a V-shaped notch, or other shapes, as long as it facilitates the positioning component 50 in positioning the electrode sheet material A; no limitation is made here.

[0055] Optionally, the positioning component 50 includes a camera, which is used to detect the position of the positioning notch on the electrode strip A. When the camera detects that the positioning notch on the electrode strip A has moved to a preset position, the main drive traction mechanism 23 stops traction of the electrode strip A downstream, thus achieving the positioning of the electrode strip A.

[0056] It should be noted that in some embodiments, the electrode strip A unwound from the unwinding assembly 10 has tabs, thus eliminating the need for a tab die-cutting assembly. In other embodiments, the electrode strip A unwound from the unwinding assembly 10 does not have tabs, thus requiring a tab die-cutting assembly. Specifically, this tab die-cutting assembly is positioned between the downstream of the unwinding assembly 10 and the upstream of the cutting assembly 40 to die-cut the passing electrode strip A, thereby forming tabs on the electrode strip A. Of course, the tab die-cutting assembly can also be positioned between the downstream of the cutting assembly 40 and the upstream of the positioning assembly 50, without special limitation.

[0057] In the embodiments of this application, the unwinding assembly 10 includes two unwinding mechanisms 11 and a tape receiving mechanism 12 arranged downstream of the two unwinding mechanisms 11. Each unwinding mechanism 11 can load an electrode roll and drive the electrode roll to rotate and unwind the electrode strip A downstream. In actual use, one unwinding mechanism 11 drives the electrode roll on it to unwind and output the electrode strip A downstream, while the other unwinding mechanism 11 loads an electrode roll and waits to be unwound. When the electrode roll on the unwinding mechanism 11 is unwound, the tape receiving mechanism 12 cuts the passing electrode strip A and connects the downstream cut end of the electrode strip A to the starting end of the electrode roll on the unwinding mechanism 11 waiting to be unwound (e.g., using tape for connection). At this time, after the unwinding mechanism 11 changes the electrode roll, it switches to the waiting-to-unwind state, and the waiting-to-unwinding unwinding mechanism 11 switches to the unwinding state and continues to feed the electrode strip A downstream.

[0058] It should be noted that after the electrode strip A is cut, two cut ends are formed at the break point, with the one located upstream being the upstream cut end and the one located downstream being the downstream cut end. When the splicing mechanism 12 splices the strip, it connects the downstream cut end of the electrode strip A to the starting end of the strip on the electrode roll waiting to be unwound by the unwinding mechanism 11.

[0059] In a specific embodiment, the unwinding assembly 10 further includes a tension adjustment mechanism, which is arranged between the downstream of the tape splicing mechanism 12 and the upstream of the cutting assembly 40, for tensioning the electrode strip A and adjusting the tension of the electrode strip A.

[0060] Furthermore, the tension adjustment mechanism includes a first fixed roller 131, a movable roller 133, a second fixed roller 135, and a motion drive 137. The first fixed roller 131 is arranged upstream of the movable roller 133, and the second fixed roller 135 is arranged downstream of the movable roller 133. The first fixed roller 131, the movable roller 133, and the second fixed roller 135 are sequentially wound around the electrode strip A. The motion drive 137 is drivenly connected to the movable roller 133 and is used to drive the movable roller 133 to move relative to the first fixed roller 131 and the second fixed roller 135, thereby causing the electrode strip A to be tensioned or relaxed, that is, to adjust the tension of the electrode strip A. It should be noted that the motion drive 137 can drive the movable roller 133 to move in a straight line or drive the movable roller 133 to swing, as long as the tension of the electrode strip A can be adjusted by changing the position of the movable roller 133, it is not limited here.

[0061] In a specific embodiment, the unwinding assembly 10 further includes a web-correcting mechanism 14, which is arranged downstream of the tension adjusting mechanism and upstream of the cutting assembly 40. This web-correcting mechanism 14 is used to adjust the position of the electrode strip A along its width direction, ensuring that the positional accuracy of the electrode strip A passing through the cutting assembly 40, the positioning assembly 50, and the sheet-making assembly 20 meets the process requirements in its own width direction.

[0062] Specifically, in this embodiment, the unwinding assembly 10 further includes a strip buffer mechanism 15, which is arranged downstream of the web guiding mechanism 14 and upstream of the cutting assembly 40. This strip buffer mechanism 15 is used to buffer the electrode strip A; that is, the electrode strip A unwound by the unwinding mechanism 11 is buffered in the strip buffer mechanism 15, and the main drive traction mechanism 23 pulls out the electrode strip A buffered in the strip buffer mechanism 15. It should be noted that the strip buffer mechanism 15 can employ relatively mature existing technology, as long as it can buffer the electrode strip A; no limitation is made here.

[0063] Based on the above-described electrode fabrication apparatus, this application also provides a solid-state battery manufacturing apparatus. This solid-state battery manufacturing apparatus includes a stacking device and the electrode fabrication apparatus as described in any of the above embodiments. The electrode fabrication device is used to prepare electrode sheets C using electrode strips A. The stacking device is used to stack the electrode sheets C to form a solid-state battery.

[0064] It should be noted that when electrode material C is a positive electrode, the stacking device is used to stack electrode material C and negative electrode to form a solid-state battery. When electrode material C is a negative electrode, the stacking device is used to stack electrode material C and positive electrode to form a solid-state battery.

[0065] 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.

[0066] The embodiments described above are merely illustrative of 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 the 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 pole piece manufacturing apparatus, characterized by, include: Unwinding assembly (10) is used to unwind and output electrode strip (A) downstream; A film-making assembly (20) includes a cutting mechanism (21) and a conveying mechanism (22), wherein the cutting mechanism (21) is arranged downstream of the unwinding assembly (10), and the conveying mechanism (22) is arranged downstream of the cutting mechanism (21); and The tab adhesive assembly (30) is arranged on the material conveying path of the conveying mechanism (22).

2. The pole piece manufacturing apparatus according to claim 1, wherein The cutting mechanism (21) is used to cut the passing electrode strip (A) into electrode sheets (C), the conveying mechanism (22) is used to receive and convey the electrode sheets (C), and the tab adhesive assembly (30) is used to attach adhesive tape to the tabs of the electrode sheets (C) on the conveying mechanism (22).

3. The pole piece manufacturing apparatus according to claim 2, wherein The electrode sheet (C) is the positive electrode sheet of a solid-state battery.

4. The pole piece manufacturing apparatus according to claim 1, wherein The film-making assembly (20) also includes a first visual inspection mechanism (26), which is arranged on the material conveying path of the conveying mechanism (22) and is located upstream of the tab adhesive assembly (30).

5. The pole piece manufacturing apparatus according to claim 4, wherein The tab adhesive assembly (30) includes a motion drive mechanism (31) and an adhesive applicator (32) mounted on the drive end of the motion drive mechanism (31). The first visual detection mechanism (26) is communicatively connected to the motion drive mechanism (31).

6. The pole piece manufacturing apparatus according to claim 5, wherein The first visual inspection mechanism (26) is used to detect the position of the electrode sheet (C) on the conveying mechanism (22), and the motion driving mechanism (31) is used to drive the adhesive applicator (32) to adjust its position according to the detection result of the first visual inspection mechanism (26).

7. The electrode fabrication apparatus according to claim 5, characterized in that, The tab adhesive assembly (30) is configured to be at least two, and the motion drive mechanism (31) of each tab adhesive assembly (30) is communicatively connected to the first visual detection mechanism (26).

8. The electrode fabrication apparatus according to claim 7, characterized in that, Each of the tab adhesive assembly (30) is arranged sequentially along the material conveying path of the conveying mechanism (22), wherein any two adjacent tab adhesive assemblies (30) are respectively the first tab adhesive assembly and the second tab adhesive assembly located downstream of the first tab adhesive assembly; the first vision inspection mechanism (26) is used to detect the position of the electrode sheet (C) on the conveying mechanism (22); The motion drive mechanism (31) of the first electrode tab adhesive assembly is used to drive the adhesive application mechanism (32) to adjust its position according to the detection result of the first vision detection mechanism (26) on the Nth electrode sheet material (C); when the Nth electrode sheet material (C) is delivered to the first electrode tab adhesive assembly, the motion drive mechanism (31) of the first electrode tab adhesive assembly drives the adhesive application mechanism (32) to apply adhesive to the electrode tab of the Nth electrode sheet material (C) and drives the adhesive application mechanism (32) to reset; The motion drive mechanism (31) of the second electrode tab adhesive assembly is used to drive the adhesive application mechanism (32) to adjust its position according to the detection result of the first vision detection mechanism (26) on the N+1th electrode sheet material (C); when the N+1th electrode sheet material (C) is delivered to the second electrode tab adhesive assembly, the motion drive mechanism (31) of the second electrode tab adhesive assembly drives the adhesive application mechanism (32) to apply adhesive to the electrode tab of the N+1th electrode sheet material (C) and drives the adhesive application mechanism (32) to reset.

9. The electrode fabrication apparatus according to claim 1, characterized in that, The film-making assembly (20) also includes a second visual inspection mechanism (27), which is arranged on the material conveying path of the conveying mechanism (22) and located upstream of the tab adhesive assembly (30).

10. The electrode fabrication apparatus according to claim 9, characterized in that, The second visual inspection mechanism (27) is used to inspect the surface defects of the electrode sheet (C) on the conveying mechanism (22).

11. The electrode fabrication apparatus according to claim 1, characterized in that, The sheet-making assembly (20) also includes a dust removal mechanism (25), which is arranged on the material conveying path of the conveying mechanism (22) and located upstream of the tab bonding assembly (30).

12. The electrode fabrication apparatus according to claim 1, characterized in that, The conveying mechanism (22) includes a vacuum belt conveyor.

13. The electrode fabrication apparatus according to claim 1, characterized in that, The electrode preparation apparatus further includes a cutting component (40) and a positioning component (50), both of which are arranged between the downstream of the unwinding component (10) and the upstream of the electrode preparation component (20), with the cutting component (40) located upstream of the positioning component (50).

14. The electrode fabrication apparatus according to claim 13, characterized in that, The cutting component (40) is used to cut a positioning notch on the passing electrode strip (A), and the positioning component (50) is used to position the electrode strip (A) using the positioning notch on the passing electrode strip (A).

15. The electrode fabrication apparatus according to claim 1, characterized in that, The electrode assembly (20) further includes a main drive traction mechanism (23), which is arranged between the downstream of the unwinding assembly (10) and the upstream of the cutting mechanism (21) for traction of the electrode strip (A) to the cutting mechanism (21).

16. A solid-state battery manufacturing apparatus, characterized in that, It includes a stacking device and an electrode fabrication device as described in any one of claims 1 to 15.

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