Stacked structure
By introducing a substrate, coating mechanism, and pressing mechanism into the stacking machine, the stable stacking of multiple electrode sheets is ensured, solving the problems of electrode sheet misalignment and separator wrinkles, and improving the finished quality of the battery cell.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XING GRAIN AUTOMATION CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
When stacking multiple electrode sheets in existing stacking machines, the electrode sheets are prone to misalignment and the separator is prone to wrinkles, resulting in poor quality of the finished battery cell.
The electrode employs a stacked structure including a substrate, a coating mechanism, and a pressing mechanism. The ends of the electrode units are pressed by the first pressing module and the second pressing module, while the contact part of the electrode units is pressed by the middle pressing module, ensuring that the four corners of each electrode are stably pressed.
This avoids electrode shifting during the stacking process, prevents separator wrinkles, and improves the finished cell quality.
Smart Images
Figure CN224288301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery stacking technology, and in particular to a stacking structure. Background Technology
[0002] In the production process of lithium-ion battery cells, to prevent short circuits caused by direct contact between the electrodes and to ensure normal ion transport inside the battery, the electrodes need to be stacked together using a separator. To improve stacking efficiency, a stacking machine is typically used to perform this operation.
[0003] In existing wafer stacking machines, a reciprocating stacking process is typically used to achieve the stacking of separators and electrodes. First, an electrode is placed, and the stacking machine uses a first pressing blade to press one end of the separator onto the beginning of the electrode. Then, under the action of a drive unit, the separator moves towards the end of the electrode along its length. When the separator completely covers the electrode and reaches the end, a second pressing blade presses the separator down to ensure a tight fit between the separator and the electrode at the end. At this point, the first pressing blade is withdrawn, releasing the pressure on the separator. Subsequently, the separator moves back towards the beginning of the electrode under the action of the drive unit, preparing for the next round of stacking. This process is repeated until a cell meeting the requirements is produced.
[0004] However, existing stacking machines are mainly used for stacking single electrode sheets. In the stacking process of a single electrode sheet, since only one electrode sheet needs to be covered by the separator, the pressing mechanism of the stacking machine is relatively simple, only needing to press the beginning and end of the electrode sheet. Once multiple electrode sheets are stacked simultaneously, the stacking machine only presses the two ends of the electrode unit formed by the multiple electrode sheets, and does not press the middle part of the electrode unit. This causes the electrode sheet in the middle position of the electrode unit to easily shift. Furthermore, when the electrode sheet shifts, the middle part of the separator is also prone to wrinkles when it is stacked onto the electrode unit, ultimately resulting in poor quality of the finished battery cell. Utility Model Content
[0005] The main purpose of this invention is to propose a stacked structure to solve the problems of electrode misalignment and separator wrinkling when multiple electrodes are stacked simultaneously, thereby improving the finished quality of the battery cell.
[0006] To achieve the above objectives, this utility model proposes a stacked structure, the stacked structure comprising:
[0007] The substrate has a stacked plane for placing multiple electrodes, which are arranged along a first direction to form an electrode unit. The electrode unit has a contact portion between two adjacent electrodes.
[0008] A coating mechanism, disposed adjacent to the substrate, is used to convey a diaphragm so that the diaphragm covers the electrode unit along a second direction perpendicular to the first direction; and
[0009] The pressing mechanism includes a frame adjacent to the base, and a first pressing assembly and a second pressing assembly disposed on the frame. The first pressing assembly includes a first pressing module and a second pressing module disposed on opposite sides of the stacked plane along a second direction. The first pressing module and the second pressing module are respectively used to press the end of the electrode unit along the first direction. The second pressing assembly includes a plurality of intermediate pressing modules disposed on opposite sides of the stacked plane along the second direction. Each intermediate pressing module presses the contact portion of the electrode unit along the second direction.
[0010] In one embodiment, both the first pressing module and the second pressing module include a head pressing component and a tail pressing component. The head pressing component and the tail pressing component are disposed on both sides of the second pressing assembly along the first direction, and both can move along the first direction in the frame.
[0011] In one embodiment, both the head pressing component and the tail pressing component include:
[0012] A first translation drive component is disposed on the frame;
[0013] A sliding base is movably mounted on the frame and connected to the output end of the first translation drive component;
[0014] A first lifting drive component, wherein the first lifting drive component is disposed on the sliding base; and
[0015] The first pressing component is connected to the output end of the first lifting drive component;
[0016] Wherein, the first translational drive member drives the sliding base, causing the first lifting drive member and the first pressing member to move along the first direction, and the first lifting drive member drives the first pressing member to move along a direction perpendicular to the stacked plane.
[0017] In one embodiment, the head pressing component further includes a limiting block disposed on the frame to restrict the movement of the sliding base along the first direction.
[0018] In one embodiment, the intermediate pressing module includes:
[0019] Mounting base, which is disposed on the frame and corresponds to the contact portion;
[0020] A second lifting drive component, wherein the second lifting drive component is disposed on the mounting base; and
[0021] The second pressing component is connected to the output end of the second lifting drive component;
[0022] The second lifting drive unit drives the second pressing knife unit to move in a direction perpendicular to the stacked plate plane.
[0023] In one embodiment, the intermediate pressing module includes a first lug and a second lug, the first lug and the second lug respectively pressing two adjacent electrode plates of the contact portion.
[0024] In one embodiment, the intermediate pressing knife module further includes a second connecting member, which is connected to the output end of the second lifting drive member and the second pressing knife member respectively. The mounting base is also provided with a limiting rod, which is used to limit the movement of the second connecting member in a direction perpendicular to the stacked plane.
[0025] In one embodiment, the number of electrode sheets is N, N≥2, the number of intermediate pressing modules is 2(N-1), and each contact portion corresponds to two intermediate pressing modules.
[0026] In one embodiment, the frame includes a first base and a second base disposed on both sides of the base along the second direction. The first base is provided with a first pressing knife module and an intermediate pressing knife module, and the second base is provided with a second pressing knife module and an intermediate pressing knife module.
[0027] The first base and the second base move relative to the substrate to bring the first pressing module and the second pressing module closer to or further away from the stacked plane.
[0028] In one embodiment, both the first base and the second base are provided with position detection sensors, which are used to detect the positions of the first base and the second base.
[0029] The technical solution of this utility model uses a first pressing module and a second pressing module to press the ends of the electrode unit. Simultaneously, a middle pressing module presses the contact portion of the electrode unit. This allows the pressing mechanism to press all four corners of each electrode in the electrode unit, preventing electrode misalignment during stacking and ensuring the stability of the pressing. Furthermore, because the electrodes can be stably stacked within the stacking plane, wrinkles are prevented at the corresponding contact portions of the separator during stacking, thereby improving the finished quality of the battery cell. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0031] Figure 1 A schematic diagram of an embodiment of the laminated structure provided by this utility model;
[0032] Figure 2 for Figure 1 Another structural schematic diagram of the mid-layer stacked structure;
[0033] Figure 3 This is a schematic diagram of the electrode unit.
[0034] Explanation of icon numbers:
[0035] 100. Stacked structure; 1. Base; 11. Stacked plane; 2. Pressing mechanism; 21. Frame; 211. First base; 2111. Position detection sensor; 212. Second base; 22. First pressing assembly; 221. First pressing module; 2210. Head pressing component; 2211. First translation drive; 2212. Sliding base; 2213. First lifting drive; 2214. First pressing component; 22 15. Limiting block; 2220. Tail pressing component; 222. Second pressing module; 23. Second pressing assembly; 231. Intermediate pressing module; 2311. Mounting base; 2312. Second lifting drive; 2313. Second pressing component; 2314. First lug; 2315. Second lug; 2316. Second connector; 2317. Limiting rod; 200. Electrode unit; 201. Electrode; 202. Contact part.
[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0040] In the production process of lithium-ion battery cells, to prevent short circuits caused by direct contact between the electrodes and to ensure normal ion transport inside the battery, the electrodes need to be stacked together using a separator. To improve stacking efficiency, a stacking machine is typically used to perform this operation.
[0041] In existing wafer stacking machines, a reciprocating stacking process is typically used to achieve the stacking of separators and electrodes. First, an electrode is placed, and the stacking machine uses a first pressing blade to press one end of the separator onto the beginning of the electrode. Then, under the action of a drive unit, the separator moves towards the end of the electrode along its length. When the separator completely covers the electrode and reaches the end, a second pressing blade presses the separator down to ensure a tight fit between the separator and the electrode at the end. At this point, the first pressing blade is withdrawn, releasing the pressure on the separator. Subsequently, the separator moves back towards the beginning of the electrode under the action of the drive unit, preparing for the next round of stacking. This process is repeated until a cell meeting the requirements is produced.
[0042] However, existing stacking machines are mainly used for stacking single electrode sheets. In the stacking process of a single electrode sheet, since only one electrode sheet needs to be covered by the separator, the pressing mechanism of the stacking machine is relatively simple, only needing to press the beginning and end of the electrode sheet. Once multiple electrode sheets are stacked simultaneously, the stacking machine only presses the two ends of the electrode unit formed by the multiple electrode sheets, and does not press the middle part of the electrode unit. This causes the electrode sheet in the middle position of the electrode unit to easily shift. Furthermore, when the electrode sheet shifts, the middle part of the separator is also prone to wrinkles when it is stacked onto the electrode unit, ultimately resulting in poor quality of the finished battery cell.
[0043] This utility model proposes a stacked structure 100, which aims to solve the problem that the diaphragm is prone to wrinkles when multiple electrode sheets 201 are stacked at the same time, so as to improve the finished quality of the battery cell.
[0044] Please see Figures 1 to 3 In one embodiment of this utility model, the stacked structure 100 includes a substrate 1, a coating mechanism, and a pressing mechanism 2. The substrate 1 has a stacking plane 11 for placing multiple electrode sheets 201. The multiple electrode sheets 201 are arranged along a first direction to form an electrode unit 200. The electrode unit 200 has a contact portion 202 between two adjacent electrode sheets 201. The coating mechanism is disposed adjacent to the substrate 1 and is used to transport a diaphragm so that the diaphragm covers the electrode unit 200 along a second direction, which is perpendicular to the first direction. The pressing mechanism 2 includes a frame 21 disposed adjacent to the substrate 1, and a first pressing assembly 22 and a second pressing assembly 23 disposed on the frame 21. The first pressing assembly 22 includes a first pressing module 221 and a second pressing module 222 disposed on opposite sides of the stacking plane 11 along the second direction. The first pressing module 221 and the second pressing module 222 are respectively used to press the ends of the electrode unit 200 along the first direction. The second pressing assembly 23 includes a plurality of intermediate pressing modules 231 disposed on opposite sides of the stacking plane 11 along the second direction, each intermediate pressing module 231 pressing the contact portion 202 of the electrode unit 200 along the second direction.
[0045] During the lamination process, the coating mechanism drives the diaphragm to move along the second direction so that the diaphragm covers the lamination plane 11. At the same time, other structures stack the electrode unit 200 formed by multiple electrode sheets 201 on the diaphragm. The first pressing knife assembly 22 and the second pressing knife assembly 23 press onto the electrode unit 200. The coating mechanism drives the diaphragm to move along the second direction so that the diaphragm covers the electrode unit 200.
[0046] For ease of description, the stacking plane 11 is defined to have a first side and a second side arranged opposite to each other along the second direction. The first pressing module 221 is located on the first side, and the second pressing module 222 is located on the second side. When the coating mechanism moves from the first side to the second side, it causes a new diaphragm to cover the electrode unit 200. The second pressing module 222 disengages from the electrode unit 200 and moves away from the stacking plane 11 to release the pressure. At the same time, the intermediate pressing module 231 on the first side moves synchronously, disengages from the electrode unit 200, and moves away from the stacking plane 11. Then, other structures stack the new electrode unit 200 on the diaphragm. The second pressing module 222 and the intermediate pressing module 231 on the first side are reset, thereby pressing the newly stacked diaphragm and electrode unit 200 tightly within the stacking plane 11. When the coating mechanism moves from the second side to the first side, it causes a new diaphragm to cover the electrode unit 200. At this time, the first pressing module 221 and the intermediate pressing module 231 on the second side disengage from the electrode unit 200 and move away from the stacking plane 11 to release the pressure. Then, other structures stack the new electrode unit 200 on the diaphragm. The first pressing module 221 and the intermediate pressing module 231 on the second side reset to press the new diaphragm and electrode unit into the stacking plane. This cycle is repeated to complete the stacking operation.
[0047] The technical solution of this utility model uses a first pressing module 221 and a second pressing module 222 to press the ends of the electrode unit 200. Simultaneously, an intermediate pressing module 231 presses the contact portion 202 of the electrode unit 200. This allows the pressing mechanism 2 to press the four corners of each electrode 201 in the electrode unit 200, preventing the electrode 201 from shifting during the stacking process and ensuring the stability of the pressing. Furthermore, because the electrode 201 can be stably stacked within the stacking plane 11, wrinkles are prevented at the corresponding contact portion 202 of the separator during stacking, thereby improving the finished quality of the battery cell.
[0048] It should be noted that in this embodiment, multiple electrode sheets 201 are arranged along the first direction, while the diaphragm moves along the second direction for coating. That is, the diaphragm moves back and forth between the two long sides of the electrode unit 200, and the stacked structure 100 is stacked for this coating method.
[0049] Please see Figure 1 and Figure 2 In one embodiment, the first pressing module 221 and the second pressing module 222 both include a head pressing component 2210 and a tail pressing component 2220. The head pressing component 2210 and the tail pressing component 2220 are disposed on both sides of the second pressing assembly 23 along the first direction, and both can move along the first direction in the frame 21.
[0050] In this embodiment, since the first pressing module 221 and the second pressing module 222 have the same structure, the following description uses the first pressing module 221 as an example. Specifically, the head pressing component 2210 and the tail pressing component 2220 of the first pressing module 221 move towards each other along a first direction, approaching the electrode unit 200, and pressing the diaphragm and electrode unit 200 together from both sides of the stacking plane 11 along the first direction. Alternatively, the head pressing component 2210 and the tail pressing component 2220 of the first pressing module 221 move away from each other along the first direction, moving away from the electrode unit 200, to release the pressure on the electrode unit 200 and facilitate the stacking of new diaphragms and electrode units 200.
[0051] Please see Figure 1 and Figure 2 In one embodiment, both the head pressing component 2210 and the tail pressing component 2220 include a first translational drive 2211, a sliding base 2212, a first lifting drive 2213, and a first pressing component 2214. The first translational drive 2211 is mounted on the frame 21. The sliding base 2212 is movably mounted on the frame 21 and connected to the output end of the first translational drive 2211. The first lifting drive 2213 is mounted on the sliding base 2212. The first pressing component 2214 is connected to the output end of the first lifting drive 2213. The first translational drive 2211 drives the sliding base 2212, causing the first lifting drive 2213 and the first pressing component 2214 to move along a first direction. The first lifting drive 2213 drives the first pressing component 2214 to move along a direction perpendicular to the stacking plane 11.
[0052] In this embodiment, the head pressing component 2210 and the tail pressing component 2220 have the same structure and move independently. Both are driven by the first translational drive component 2211 to move the sliding base 2212 on the frame 21, thereby driving the first pressing component 2214 to move relative to the stacking plane 11. The first lifting drive component 2213 drives the first pressing component 2214 to move in a direction perpendicular to the stacking plane 11, so as to press or release the two ends of the electrode unit 200 and the diaphragm.
[0053] Optionally, the head pressing component 2210 and the tail pressing component 2220 can also be driven by only one first translation drive 2211, so that the head pressing component 2210 and the tail pressing component 2220 can move simultaneously along the first direction, while moving closer to or further away from each other.
[0054] Please see Figure 1 and Figure 2 In one embodiment, the head pressing knife component 2210 further includes a limiting block 2215, which is disposed on the frame 21 and is used to limit the movement of the sliding base 2212 along the first direction.
[0055] In this embodiment, the sliding base 2212 is provided with a limiting block 2215. When the sliding base 2212 moves along the first direction under the drive of the first translation drive member 2211, once it approaches the preset limit position, the limiting block 2215 will contact it and generate resistance, thereby preventing the sliding base 2212 from continuing to move. This ensures that the sliding base 2212 and the first lifting drive member 2213 and the first pressing member 2214 it carries will not exceed the predetermined working area during movement, thereby avoiding unnecessary collisions or interference with the frame 21 or other components and protecting the stability of the entire structure. At the same time, it provides a clear endpoint for the movement of the sliding base 2212, so that each operation can end in a consistent and controllable manner, thereby maintaining the consistency and repeatability of the stacking process.
[0056] Please see Figure 1 and Figure 2 In one embodiment, the intermediate pressing module 231 includes a mounting base 2311, a second lifting drive 2312, and a second pressing member 2313. The mounting base 2311 is disposed on the frame 21 and corresponds to the contact portion 202. The second lifting drive 2312 is disposed on the mounting base 2311. The second pressing member 2313 is connected to the output end of the second lifting drive 2312. The second lifting drive 2312 drives the second pressing member 2313 to move in a direction perpendicular to the stacking plane 11.
[0057] In this embodiment, the intermediate pressing module 231 drives the second pressing member 2313 to press or release the diaphragm via the second lifting drive member 2312. It can be understood that the intermediate pressing module 231 on each side also alternately presses and releases to complete the pressing of the contact portion 202 of the newly stacked electrode unit 200 and the middle position of the diaphragm.
[0058] Optionally, the mounting base 2311 can also be slidably mounted on the frame 21 in the first direction. In this case, it is necessary to ensure that the second pressing member 2313 is aligned with the contact part 202 before the intermediate pressing module 231 is pressed.
[0059] Please see Figure 1 and Figure 2 In one embodiment, the intermediate pressing module 231 includes a first lug 2314 and a second lug 2315, which press the two adjacent electrode plates 201 of the contact portion 202 respectively.
[0060] In this embodiment, the second lifting drive 2312 drives the second pressing knife 2313 to move up and down in a direction perpendicular to the stacked plane 11. When the second pressing knife 2313 descends to a certain position, the first lug 2314 and the second lug 2315 will contact the two adjacent electrode sheets 201 respectively and press them, thereby ensuring that the end of each electrode sheet 201 can be pressed.
[0061] Please see Figure 1 and Figure 2 In one embodiment, the intermediate pressing module 231 further includes a second connector 2316, which is connected to the output end of the second lifting drive 2312 and the second pressing component 2313 respectively. The mounting base 2311 is also provided with a limiting rod 2317, which is used to limit the movement of the second connector 2316 in a direction perpendicular to the stacking plane 11.
[0062] In this embodiment, the output end of the second lifting drive 2312 and the second pressing member 2313 are connected by the second connector 2316. In order to limit the excessive movement of the second pressing member 2313 in the direction perpendicular to the stacking plane 11, a limit rod 2317 is also provided on the mounting base 2311. The limit rod 2317 can provide additional support and restriction when the second connector 2316 moves to a preset position, thereby preventing damage to the second pressing member 2313 or the diaphragm due to excessive movement.
[0063] Please see Figure 1 and Figure 2 In one embodiment, the number of electrode sheets 201 is N, N≥2, the number of intermediate pressing modules 231 is 2(N-1), and each contact portion 202 corresponds to two intermediate pressing modules 231.
[0064] In this embodiment, the electrode unit 200 may include multiple electrode sheets 201. When the number of electrode sheets 201 is N, since a contact portion 202 is formed between each two adjacent electrode sheets 201, a total of N-1 contact portions 202 will be formed. Each contact portion 202 requires two intermediate pressing modules 231 to press the two sides of the electrode sheet 201 respectively, so a total of 2(N-1) intermediate pressing modules 231 are required.
[0065] Please see Figure 1 and Figure 2In one embodiment, the frame 21 includes a first base 211 and a second base 212 disposed on both sides of the base 1 along a second direction. The first base 211 is provided with a first pressing module 221 and an intermediate pressing module 231, and the second base 212 is provided with a second pressing module 222 and an intermediate pressing module 231. The first base 211 and the second base 212 are respectively movable relative to the base 1, so that the first pressing module 221 and the second pressing module 222 move closer to or further away from the stacking plane 11.
[0066] In this embodiment, the frame 21 includes a first base 211 and a second base 212 that can move relative to the base 1, such that the first pressing module 221 and the second pressing module 222 move closer to or further away from the stacking plane 11 as needed for the stacking operation. When a pressing operation is required, the first base 211 and the second base 212 move respectively, so that the first pressing module 221 and the intermediate pressing module 231 on the first base 211 move closer to or further away from the stacking plane 11, and the second pressing module 222 and the intermediate pressing module 231 on the second base 212 move closer to or further away from the stacking plane 11.
[0067] Please see Figure 1 and Figure 2 In one embodiment, both the first base 211 and the second base 212 are provided with position detection sensors 2111, which are used to detect the positions of the first base 211 and the second base 212.
[0068] In this embodiment, in order to facilitate the control of the positions of the first base 211 and the second base 212, so that the first pressing knife assembly 22 and the second pressing knife assembly 23 on the first base 211 and the second base 212 correspond exactly to the stacking plane 11, a position detection sensor 2111 is also provided on the first base 211 and the second base 212.
[0069] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A laminated structure, characterized in that, The laminated structure includes: The substrate has a stacked plane for placing multiple electrodes, which are arranged along a first direction to form an electrode unit. The electrode unit has a contact portion between two adjacent electrodes. A coating mechanism, disposed adjacent to the substrate, is used to convey a diaphragm so that the diaphragm covers the electrode unit along a second direction perpendicular to the first direction; and The pressing mechanism includes a frame adjacent to the base, and a first pressing assembly and a second pressing assembly disposed on the frame. The first pressing assembly includes a first pressing module and a second pressing module disposed on opposite sides of the stacked plane along a second direction. The first pressing module and the second pressing module are respectively used to press the end of the electrode unit along the first direction. The second pressing assembly includes a plurality of intermediate pressing modules disposed on opposite sides of the stacked plane along the second direction. Each intermediate pressing module presses the contact portion of the electrode unit along the second direction.
2. The laminated structure as described in claim 1, characterized in that, Both the first pressing module and the second pressing module include a head pressing component and a tail pressing component. The head pressing component and the tail pressing component are disposed on both sides of the second pressing component along the first direction, and both can move along the first direction in the frame.
3. The stacked structure as described in claim 2, characterized in that, Both the head pressing component and the tail pressing component include: A first translation drive component is disposed on the frame; A sliding base is movably mounted on the frame and connected to the output end of the first translation drive component; A first lifting drive component, wherein the first lifting drive component is disposed on the sliding base; and The first pressing component is connected to the output end of the first lifting drive component; Wherein, the first translational drive member drives the sliding base, causing the first lifting drive member and the first pressing member to move along the first direction, and the first lifting drive member drives the first pressing member to move along a direction perpendicular to the stacked plane.
4. The stacked structure as described in claim 3, characterized in that, The head pressing component also includes a limiting block, which is disposed on the frame and is used to restrict the movement of the sliding base along the first direction.
5. The laminated structure as described in claim 1, characterized in that, The intermediate pressing module includes: Mounting base, which is disposed on the frame and corresponds to the contact portion; A second lifting drive component, wherein the second lifting drive component is disposed on the mounting base; and The second pressing component is connected to the output end of the second lifting drive component; The second lifting drive unit drives the second pressing knife unit to move in a direction perpendicular to the stacked plate plane.
6. The stacked structure as described in claim 5, characterized in that, The intermediate pressing module includes a first lug and a second lug, which respectively press two adjacent electrode plates of the contact portion.
7. The laminated structure as described in claim 6, characterized in that, The intermediate pressing knife module also includes a second connecting member, which is connected to the output end of the second lifting drive member and the second pressing knife member respectively. The mounting base is also provided with a limiting rod, which is used to limit the movement of the second connecting member in a direction perpendicular to the stacked plane.
8. The stacked structure as described in claim 1, characterized in that, The number of electrode sheets is N, where N≥2, and the number of intermediate pressing modules is 2(N-1). Each contact portion corresponds to two intermediate pressing modules.
9. The laminated structure as described in any one of claims 1 to 8, characterized in that, The frame includes a first base and a second base disposed on both sides of the base along the second direction. The first base is provided with a first pressing knife module and a middle pressing knife module, and the second base is provided with a second pressing knife module and a middle pressing knife module. The first base and the second base move relative to the substrate to bring the first pressing module and the second pressing module closer to or further away from the stacked plane.
10. The laminated structure as described in claim 9, characterized in that, Both the first base and the second base are equipped with position detection sensors, which are used to detect the positions of the first base and the second base.