Lamination device and lithium ion battery production line

Abstract

The utility model belongs to the technical field of lithium ion batteries, and discloses a lamination device and a lithium ion battery production line, the lamination device comprises a rack, a push clamp, a positioning piece, a compounding mechanism and a cutting mechanism, and the rack is provided with a compounding station and a cutting station at an interval; an adsorption structure is arranged on the push clamp and can adsorb and fix a diaphragm and a pole piece, and the push clamp can be mounted at a composite station or a cutting station; the positioning piece is provided with a positioning groove used for being connected with the pole piece in a clamped mode, and the positioning piece is detachably connected to the push clamp. The compounding mechanism comprises a first driving part and a hot pressing plate, the hot pressing plate is arranged at the output end of the first driving part and right faces the compounding station, and the first driving part drives the hot pressing plate to perform hot pressing compounding on the diaphragm and the pole piece; the cutting mechanism comprises a second driving part and a hot cutting plate, the hot cutting plate is arranged opposite to the cutting station, the second driving part is used for driving the hot cutting plate to move in the direction close to or away from the cutting station, a hot cutter is arranged on the hot cutting plate, and the hot cutter corresponds to the position of the pole piece, so that the pole piece is centered in the cutting shape.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium-ion batteries, in particular to a lamination device and a lithium-ion battery production line. Background Art

[0002] With the development of new energy technologies, lithium-ion batteries are increasingly being used in a wide range of applications, such as mobile phones, laptops, electric vehicles, and electric airplanes. During the lithium-ion battery manufacturing process, an electrode is typically sandwiched between two layers of separators. The separators are first pressed together to form a composite electrode sheet, which is then cut to a standard size.

[0003] In the prior art, the cut composite electrode cannot ensure that the electrode is located at the center of the diaphragm, resulting in a low product qualification rate, and the composite electrode needs to be manually inspected or cut, resulting in low production efficiency.

[0004] Therefore, it is urgent to propose a stacking device and a lithium-ion battery production line to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lamination device and a lithium-ion battery production line, which can ensure that the pole piece is located in the center of the diaphragm, thereby improving the product qualification rate and production efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A lamination device comprising:

[0008] A frame, wherein a compounding station and a cutting station are provided on the frame at intervals;

[0009] A push clamp, wherein the push clamp is provided with an adsorption structure and a vacuum source, the adsorption structure is connected to the vacuum source, the adsorption structure is configured to adsorb and fix the diaphragm and the electrode, and the push clamp can be installed at the compounding station or the cutting station;

[0010] A positioning member, wherein a positioning groove is formed on the positioning member, the positioning groove is configured to engage with the pole piece, and the positioning member is detachably connected to the push clamp;

[0011] a compounding mechanism, comprising a first driving member and a hot pressing plate, wherein the hot pressing plate is arranged at the output end of the first driving member and is arranged opposite to the compounding station, the first driving member is used to drive the hot pressing plate to move toward or away from the compounding station, and the hot pressing plate is configured to heat and pressurize the diaphragm and the electrode piece so that the diaphragm and the electrode piece are tightly fitted;

[0012] The cutting mechanism includes a second driving member and a hot cutting plate. The hot cutting plate is arranged at the output end of the second driving member and is arranged opposite to the cutting station. The second driving member is used to drive the hot cutting plate to move toward or away from the cutting station. A hot cutting knife is provided on the hot cutting plate. The hot cutting knife corresponds to the position of the pole piece fixed on the push clamp so that the pole piece is centered within the cutting shape. The hot cutting knife is configured to heat and pressurize the diaphragm to cut the diaphragm.

[0013] Furthermore, the composite mechanism further comprises a first heat insulating plate, wherein the first heat insulating plate is fixedly connected between the output end of the first driving member and the hot pressing plate; and / or,

[0014] The cutting mechanism further includes a second heat insulation plate, which is fixedly connected between the output end of the second driving member and the hot cutting plate.

[0015] Furthermore, the composite mechanism further includes a first adapter plate, the first adapter plate is provided at the output end of the first driving member, and the first heat insulation plate is detachably mounted on the first adapter plate; and / or,

[0016] The cutting mechanism further includes a second adapter plate, which is arranged at the output end of the second driving member, and the second heat insulation plate is detachably mounted on the second adapter plate.

[0017] Furthermore, the composite mechanism further includes a first guide assembly, the first guide assembly including a first guide sleeve and a first guide post in sliding connection, one of the first guide sleeve and the first guide post being disposed on the frame, and the other being disposed on the first adapter plate; and / or,

[0018] The cutting mechanism further includes a second guide assembly, which includes a second guide sleeve and a second guide column that are slidably connected. One of the second guide sleeve and the second guide column is arranged on the frame, and the other is arranged on the second adapter plate.

[0019] Furthermore, the composite station includes a first front baffle, a first side baffle, and a first movable baffle arranged on the frame, the first side baffle, the first front baffle, and the first movable baffle are sequentially arranged to form a first card slot, the push clip can be engaged with the first card slot, and the first movable baffle is movably arranged on the frame in a direction close to or away from the first side baffle; and / or,

[0020] The cutting station includes a second front baffle, a second side baffle and a second movable baffle arranged on the frame. The second side baffle, the second front baffle and the second movable baffle are sequentially arranged to form a second card slot. The push clip can be clamped in the second card slot. The second movable baffle is movably arranged on the frame in a direction close to or away from the second side baffle.

[0021] Furthermore, the push clamp is provided with at least two adsorption structures arranged at intervals, and the positioning grooves correspond to the adsorption structures one by one.

[0022] Furthermore, a vacuum control valve is provided on the push clamp, and the vacuum control valve is connected between the adsorption structure and the vacuum source, and is used to control the on-off between the adsorption structure and the vacuum source.

[0023] Furthermore, a pressure sensor is provided on the push clamp, and the pressure sensor is used to detect the fitting pressure between the hot pressing plate and the push clamp, and / or the pressure sensor is used to detect the cutting pressure between the hot cutting knife and the push clamp.

[0024] Furthermore, the hot pressing plate is further provided with a first temperature sensor for detecting the temperature of the hot pressing plate; and / or the hot cutting plate is further provided with a second temperature sensor for detecting the temperature of the hot cutting plate.

[0025] A lithium-ion battery production line comprises an assembly device and the above-mentioned lamination device, wherein the assembly device is used to assemble the composite pole pieces processed by the lamination device with an electrolyte to obtain a lithium-ion battery.

[0026] Beneficial effects of the utility model:

[0027] The utility model provides a lamination device and a lithium-ion battery production line, comprising a frame, a push clamp, a positioning member, a compound mechanism and a cutting mechanism, wherein a compound station and a cutting station are arranged at intervals on the frame; an adsorption structure and a vacuum source are provided on the push clamp, the adsorption structure is connected to the vacuum source, the adsorption structure is configured to adsorb and fix the diaphragm and the pole piece, and the push clamp can be installed at the compound station or the cutting station; a positioning groove is provided on the positioning member, the positioning groove is configured to be clamped with the pole piece, and the positioning member is detachably connected to the push clamp; the compound mechanism comprises a first driving member and a hot pressing plate, the hot pressing plate is arranged at the output end of the first driving member and is directly opposite to the compound station The first driving member is used to drive the hot pressing plate to move toward or away from the composite station, and the hot pressing plate is configured to heat and pressurize the diaphragm and the electrode so that the diaphragm and the electrode fit tightly; the cutting mechanism includes a second driving member and a hot cutting plate, the hot cutting plate is arranged at the output end of the second driving member, and is arranged opposite to the cutting station, the second driving member is used to drive the hot cutting plate to move toward or away from the cutting station, and a hot cutting knife is provided on the hot cutting plate, and the hot cutting knife corresponds to the position of the electrode fixed on the push clamp so that the electrode is centered in the cutting shape, and the hot cutting knife is configured to heat and pressurize the diaphragm to cut the diaphragm. During processing, first place the lower diaphragm on the push clamp and start the vacuum source. The adsorption structure can adsorb and fix the lower diaphragm on the push clamp; secondly, install the positioning piece on the push clamp and place the electrode in the positioning groove. The adsorption structure can adsorb and fix the electrode through the lower diaphragm; then, remove the positioning piece and stack the upper diaphragm on the lower diaphragm. The adsorption structure can adsorb and fix the upper diaphragm through the lower diaphragm and the electrode; then, install the push clamp on the composite station, and the first driving piece drives the hot pressing plate close to the push clamp to thermally composite the diaphragm and the electrode; finally, after the composite is completed, the push clamp is transferred to the cutting station, and the second driving piece drives the hot cutting plate close to the push clamp to cut the diaphragm to obtain a composite electrode of the required size. Among them, the positioning piece is installed at the preset installation position of the push clamp, so that the positioning groove corresponds to the position of the hot cutter, ensuring that after the hot cutter cuts the diaphragm, the electrode is centered within the cut shape, ensuring that the electrode is in the center of the diaphragm, thereby improving the product qualification rate and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the lamination device of the utility model;

[0029] Figure 2 This is a structural schematic diagram of the lamination device of the present invention from another perspective;

[0030] Figure 3 This is a structural diagram of the push-clamp and positioning member of the utility model;

[0031] Figure 4 It is a structural diagram of the push clamp of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the hot cutting plate of the present utility model.

[0033] In the picture:

[0034] 1. Frame; 11. Composite station; 111. First front baffle; 112. First side baffle; 113. First movable baffle; 114. Connector; 12. Cutting station;

[0035] 2. Push clip; 21. Adsorption structure; 22. Handle;

[0036] 3. Positioning piece; 31. Positioning groove;

[0037] 4. Composite mechanism; 41. First driving member; 42. Hot pressing plate; 43. First heat insulation plate; 44. First adapter plate; 45. First guide assembly; 451. First guide sleeve; 452. First guide post;

[0038] 5. Cutting mechanism; 51. Second driving member; 52. Hot cutting plate; 521. Hot cutting knife; 53. Second heat insulation plate; 54. Second adapter plate; 55. Second guide assembly. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0040] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0043] like Figures 1 to 5 As shown, this embodiment provides a lamination device, including a frame 1, a push clamp 2, a positioning member 3, a compounding mechanism 4 and a cutting mechanism 5. A compounding station 11 and a cutting station 12 are provided on the frame 1; an adsorption structure 21 and a vacuum source are provided on the push clamp 2, and the adsorption structure 21 is connected to the vacuum source. The adsorption structure 21 is configured to adsorb and fix the diaphragm and the electrode, and the push clamp 2 can be installed on the compounding station 11 or the cutting station 12; a positioning groove 31 is provided on the positioning member 3, and the positioning groove 31 is configured to be engaged with the electrode, and the positioning member 3 is detachably connected to the push clamp 2; the compounding mechanism 4 includes a first driving member 41 and a hot pressing plate 42, and the hot pressing plate 42 is provided at the output end of the first driving member 41 and is arranged opposite to the compounding station 11 The first driving member 41 is used to drive the hot pressing plate 42 to move toward or away from the composite station 11. The hot pressing plate 42 is configured to heat and pressurize the diaphragm and the electrode so that the diaphragm and the electrode fit tightly together; the cutting mechanism 5 includes a second driving member 51 and a hot cutting plate 52. The hot cutting plate 52 is arranged at the output end of the second driving member 51 and is arranged opposite to the cutting station 12. The second driving member 51 is used to drive the hot cutting plate 52 to move toward or away from the cutting station 12. A hot cutting knife 521 is provided on the hot cutting plate 52. The hot cutting knife 521 corresponds to the position of the electrode fixed on the push clamp 2 so that the electrode is centered in the cutting shape. The hot cutting knife 521 is configured to heat and pressurize the diaphragm to cut the diaphragm.

[0044] During processing, first place the lower diaphragm on the push clamp 2, and start the vacuum source, the adsorption structure 21 can adsorb and fix the lower diaphragm on the push clamp 2; secondly, install the positioning member 3 on the push clamp 2, and place the electrode in the positioning groove 31, the adsorption structure 21 can adsorb and fix the electrode through the lower diaphragm; then, remove the positioning member 3, and stack the upper diaphragm on the lower diaphragm, the adsorption structure 21 can adsorb and fix the upper diaphragm through the lower diaphragm and the electrode; then, install the push clamp 2 on the compounding station 11, the first driving member 41 drives the hot pressing plate 42 close to the push clamp 2, and thermally composites the diaphragm and the electrode; finally, after the composite is completed, the push clamp 2 is transferred to the cutting station 12, the second driving member 51 drives the hot cutting plate 52 close to the push clamp 2, and cuts the diaphragm to obtain a composite electrode of the required size. Among them, the positioning member 3 is installed at the preset installation position of the push clamp 2, so that the positioning groove 31 corresponds to the position of the hot cutter 521, ensuring that after the hot cutter 521 cuts the diaphragm, the electrode is centered within the cut shape, ensuring that the electrode is in the center position of the diaphragm, thereby improving the product qualification rate and improving production efficiency.

[0045] The hot pressing plate 42 and the hot cutting plate 52 include but are not limited to heating by resistance heating, or heating by introducing high-temperature liquid or gas into the hot pressing plate 42, which is not limited here.

[0046] In addition, the positioning member 3 and the push clamp 2 can be detachably connected by means of, but not limited to, fasteners or snaps, which are not limited here.

[0047] like Figure 1 As shown, the composite mechanism 4 also includes a first heat shield 43, which is fixedly connected between the output end of the first drive member 41 and the hot press plate 42. The first heat shield 43 can provide insulation for the hot press plate 42 to reduce heat loss from the hot press plate 42. Similarly, the cutting mechanism 5 also includes a second heat shield 53, which is fixedly connected between the output end of the second drive member 51 and the hot cutting plate 52 to reduce heat loss from the hot cutting plate 52. Details are not provided herein. The first heat shield 43 and the second heat shield 53 include, but are not limited to, materials such as fiberglass or vacuum insulation panels, which are not limited herein.

[0048] Furthermore, the composite mechanism 4 further includes a first adapter plate 44, which is disposed at the output end of the first drive member 41. The first heat insulation plate 43 is detachably mounted on the first adapter plate 44. By providing the first adapter plate 44, the heat insulation plate can be easily connected to the output end of the first drive member 41. The first heat insulation plate 43 is detachably connected to the first connecting plate, which facilitates cleaning, repair, and replacement of the heat insulation plate and the hot cutting plate 52. Similarly, the cutting mechanism 5 further includes a second adapter plate 54, which is disposed at the output end of the second drive member 51. The second heat insulation plate 53 is detachably mounted on the second adapter plate 54. This facilitates connecting the heat insulation plate to the output end of the first drive member 41 and facilitates cleaning, repair, and replacement of the heat insulation plate and the hot cutting plate 52. These details will not be described in detail here.

[0049] The first driving member 41 and the second driving member 51 include but are not limited to air cylinders, electric cylinders or hydraulic cylinders, etc., which are not limited here.

[0050] like Figure 1 and Figure 2 As shown, the composite mechanism 4 also includes a first guide assembly 45, which includes a first guide sleeve 451 and a first guide post 452 that are slidably connected. One of the first guide sleeve 451 and the first guide post 452 is disposed on the frame 1, and the other is disposed on the first adapter plate 44. The sliding connection between the first guide sleeve 451 and the first guide post 452 can provide guidance for the first adapter plate 44 to move toward or away from the composite station 11, thereby preventing the hot press plate 42 from tilting. This balances the pressure between the hot press plate 42 and the push clamp 2, which helps to improve the adhesion between the two layers of diaphragms and the pole piece. Furthermore, a first guide assembly 45 is provided on each side of the cylinder to further improve the stability of the hot press plate 42 and ensure that the overall force on the diaphragm and pole piece is balanced.

[0051] Similarly, the cutting mechanism 5 also includes a second guide assembly 55, which includes a second guide sleeve and a second guide column that are slidably connected. One of the second guide sleeve and the second guide column is arranged on the frame 1, and the other is arranged on the second adapter plate 54, which is conducive to balancing the pressure between the hot cutting knife 521 and the push clamp 2, thereby improving the cutting effect. It will not be elaborated here.

[0052] In this embodiment, the composite station 11 includes a first front baffle 111, a first side baffle 112, and a first movable baffle 113, which are arranged on the frame 1. The first side baffle 112, the first front baffle 111, and the first movable baffle 113 are sequentially arranged to form a first slot, and the push clamp 2 can be snapped into the first slot. The first movable baffle 113 is movably arranged on the frame 1 in a direction close to or away from the first side baffle 112 to facilitate adjustment of the width of the first slot. This allows the composite station 11 to be suitable for installing push clamps 2 of different sizes, thereby improving the versatility of the lamination device. The push clamp 2 is fixed by snapping, which can improve the convenience of installing and removing the push clamp 2. In this embodiment, the first movable baffle 113 is slidably connected to the frame 1 via a connector 114, so that the width of the first slot can be steplessly adjusted. The connector 114 includes, but is not limited to, bolts. In other embodiments, multiple installation positions can be set on the rack 1 in the direction close to or away from the first side baffle 112, and the first movable baffle 113 can be selectively installed at any installation position to adjust the width of the first card slot, which is not limited here.

[0053] Similarly, the cutting station 12 includes a second front baffle, a second side baffle, and a second movable baffle provided on the frame 1. The second side baffle, the second front baffle, and the second movable baffle are sequentially arranged to form a second slot, and the push clamp 2 can be snapped into the second slot. The second movable baffle is movably provided on the frame 1 in a direction close to or away from the second side baffle, which can facilitate adjustment of the width of the second slot, so that the cutting station 12 can be adapted to install push clamps 2 of different sizes, thereby improving the versatility of the laminating device. The push clamp 2 is fixed by snapping, which can improve the convenience of installing and removing the push clamp 2. The movable connection method between the second side baffle and the frame 1 is the same as the connection method of the first side baffle 112 described above, and will not be described in detail here.

[0054] like Figure 3 and Figure 4 As shown, the push clamp 2 is provided with at least two adsorption structures 21 arranged at intervals, and the positioning grooves 31 correspond one-to-one to the adsorption structures 21, so that at least two pole pieces can be placed at one time, thereby obtaining at least two composite pole pieces, which is beneficial to improving production efficiency and improving the utilization rate of the diaphragm.

[0055] Optionally, the push clamp 2 is further provided with a vacuum control valve, which is connected between the adsorption structure 21 and the vacuum source and is used to control the connection and disconnection between the adsorption structure 21 and the vacuum source, so as to open or close the adsorption structure 21. Optionally, the push clamp 2 is further provided with a handle 22 for easy gripping, so that staff can move the push clamp 2.

[0056] Specifically, the adsorption structure 21 includes but is not limited to a plurality of adsorption holes or suction cups provided on the push clip 2 , which are not limited here.

[0057] In some embodiments, the push clamp 2 is also equipped with a pressure sensor to detect the contact pressure between the hot plate 42 and the push clamp 2, thereby monitoring the pressure on the diaphragm and electrode, thereby ensuring product quality. Furthermore, the pressure sensor can also be used to detect the cutting pressure between the hot cutter 521 and the push clamp 2, which can also improve product quality.

[0058] In other embodiments, the hot pressing plate 42 is further provided with a first temperature sensor for detecting the temperature of the hot pressing plate 42 to prevent the hot pressing plate 42 from being too hot, thereby damaging the diaphragm and the electrode, or from being too cold, thereby causing insufficient lamination pressure. Similarly, the hot cutting plate 52 is further provided with a second temperature sensor for detecting the temperature of the hot cutting plate 52 to prevent the hot cutting blade 521 from being too hot, thereby damaging the diaphragm and the electrode, or from being too cold, thereby causing adhesion and inability to cut the diaphragm.

[0059] Furthermore, this embodiment also provides a lithium-ion battery production line, including assembly equipment and a lamination device of any of the above embodiments. The assembly equipment is used to assemble the composite electrode obtained by the lamination device with an electrolyte to obtain a lithium-ion battery. By applying the above lamination device, it can be ensured that after the hot cutting knife 521 cuts the diaphragm, the electrode is centered within the cut shape, ensuring that the electrode is in the center of the diaphragm, thereby improving the product qualification rate and improving production efficiency.

[0060] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A lamination device, characterized in that: include: A frame (1), wherein a compounding station (11) and a cutting station (12) are provided on the frame (1); A push clamp (2), wherein the push clamp (2) is provided with an adsorption structure (21) and a vacuum source, the adsorption structure (21) is connected to the vacuum source, the adsorption structure (21) is configured to adsorb and fix the diaphragm and the electrode, and the push clamp (2) can be installed at the composite station (11) or the cutting station (12); A positioning member (3), wherein a positioning groove (31) is provided on the positioning member (3), and the positioning groove (31) is configured to be engaged with the pole piece, and the positioning member (3) is detachably connected to the push clamp (2); The composite mechanism (4) comprises a first driving member (41) and a hot pressing plate (42), wherein the hot pressing plate (42) is arranged at the output end of the first driving member (41) and is arranged opposite to the composite station (11), the first driving member (41) is used to drive the hot pressing plate (42) to move toward or away from the composite station (11), and the hot pressing plate (42) is configured to heat and pressurize the diaphragm and the electrode to make the diaphragm and the electrode fit tightly; The cutting mechanism (5) comprises a second driving member (51) and a hot cutting plate (52), wherein the hot cutting plate (52) is arranged at the output end of the second driving member (51) and is arranged opposite to the cutting station (12), and the second driving member (51) is used to drive the hot cutting plate (52) to move toward or away from the cutting station (12), and a hot cutting knife (521) is provided on the hot cutting plate (52), and the hot cutting knife (521) corresponds to the position of the pole piece fixed on the push clamp (2) so that the pole piece is centered within the cutting shape, and the hot cutting knife (521) is configured to heat and pressurize the diaphragm to cut the diaphragm.

2. The lamination device according to claim 1, characterized in that The composite mechanism (4) further comprises a first heat insulating plate (43), wherein the first heat insulating plate (43) is fixedly connected between the output end of the first driving member (41) and the hot pressing plate (42); and / or, The cutting mechanism (5) further comprises a second heat insulation plate (53), wherein the second heat insulation plate (53) is fixedly connected between the output end of the second driving member (51) and the hot cutting plate (52).

3. The lamination device according to claim 2, characterized in that The composite mechanism (4) further comprises a first adapter plate (44), the first adapter plate (44) being arranged at the output end of the first driving member (41), the first heat insulation plate (43) being detachably mounted on the first adapter plate (44); and / or, The cutting mechanism (5) further comprises a second adapter plate (54), the second adapter plate (54) being arranged at the output end of the second driving member (51), and the second heat insulation plate (53) being detachably mounted on the second adapter plate (54).

4. The lamination device according to claim 3, characterized in that The composite mechanism (4) further comprises a first guide assembly (45), the first guide assembly (45) comprising a first guide sleeve (451) and a first guide column (452) in sliding connection, one of the first guide sleeve (451) and the first guide column (452) being arranged on the frame (1), and the other being arranged on the first adapter plate (44); and / or, The cutting mechanism (5) further comprises a second guide assembly (55), the second guide assembly (55) comprising a second guide sleeve and a second guide column which are slidably connected, one of the second guide sleeve and the second guide column being arranged on the frame (1), and the other being arranged on the second adapter plate (54).

5. The lamination device according to any one of claims 1 to 4, characterized in that: The composite station (11) comprises a first front baffle (111), a first side baffle (112) and a first movable baffle (113) arranged on the frame (1); the first side baffle (112), the first front baffle (111) and the first movable baffle (113) are sequentially arranged to form a first card slot; the push clamp (2) can be clamped in the first card slot; the first movable baffle (113) is movably arranged on the frame (1) in a direction close to or away from the first side baffle (112); and / or, The cutting station (12) includes a second front baffle, a second side baffle, and a second movable baffle arranged on the frame (1); the second side baffle, the second front baffle, and the second movable baffle are sequentially arranged to form a second card slot; the push clamp (2) can be engaged with the second card slot; and the second movable baffle is movably arranged on the frame (1) in a direction close to or away from the second side baffle.

6. The lamination device according to any one of claims 1 to 4, characterized in that: The push clamp (2) is provided with at least two adsorption structures (21) arranged at intervals, and the positioning grooves (31) correspond one to one with the adsorption structures (21).

7. The lamination device according to any one of claims 1 to 4, characterized in that: The push clamp (2) is also provided with a vacuum control valve, which is connected between the adsorption structure (21) and the vacuum source and is used to control the connection between the adsorption structure (21) and the vacuum source.

8. The lamination device according to any one of claims 1 to 4, characterized in that: The push clamp (2) is also provided with a pressure sensor, which is used to detect the fitting pressure between the hot pressing plate (42) and the push clamp (2), and / or the pressure sensor is used to detect the cutting pressure between the hot cutting knife (521) and the push clamp (2).

9. The lamination device according to any one of claims 1 to 4, characterized in that: The hot pressing plate (42) is further provided with a first temperature sensor for detecting the temperature of the hot pressing plate (42); and / or the hot cutting plate (52) is further provided with a second temperature sensor for detecting the temperature of the hot cutting plate (52).

10. A lithium-ion battery production line, characterized in that: The invention comprises an assembly device and a lamination device according to any one of claims 1 to 9, wherein the assembly device is used to assemble the composite pole pieces processed by the lamination device with an electrolyte to obtain a lithium-ion battery.

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