Battery cell hot pressing device

Abstract

The utility model relates to a battery cell hot-pressing device. The battery cell hot-pressing device comprises a supporting plate, a discharging mechanism, a compressing mechanism, a transferring mechanism and a hot-pressing mechanism, wherein the supporting plate is used for bearing a battery cell to be subjected to hot-pressing. The discharging mechanism is movably placed on the supporting plate and used for transferring the to-be-hot-pressed battery cell to the supporting plate. And the compressing mechanism is arranged on the side edge of the supporting plate and is used for compressing the to-be-hot-pressed battery cell placed on the supporting plate. The transfer mechanism is movably connected with the supporting plate and is used for transferring the supporting plate to the hot-pressing mechanism, the supporting plate is movably arranged on the hot-pressing mechanism, and the hot-pressing mechanism is used for hot-pressing the to-be-hot-pressed battery cell. The battery cell hot-pressing device has the advantages of being good in heating effect, simple in structure and low in failure rate.

Description

Technical Field

[0001] The present application relates to the technical field of hot pressing of battery cells, and in particular to a hot pressing device for battery cells. Background Art

[0002] Cell hot pressing is a technology that bonds the components of a cell together by heating and pressurizing them. This technology is mainly used in the battery manufacturing process. Hot pressing can ensure good contact and connection between the components inside the cell to improve the performance and durability of the cell.

[0003] During the hot pressing of the battery cells, the battery cells need to be transferred between the upper heating plate and the lower heating plate for heating processing. In the related art, the battery cells are usually transferred using clamps. There are three main ways to fix the battery cells after transfer: 1. The upper heating plate and the lower heating plate are provided with clamp avoidance grooves, and the clamps are used for fixing. During hot pressing, large-area heating cannot be achieved, and the heating effect is not good. Moreover, the edges of the clamp avoidance grooves are prone to stress concentration, resulting in excessive surface pressure at the corresponding position of the battery cells and quality defects; 2. A small lifting device is added to the center of the upper heating plate or the lower heating plate to clamp the battery cells, and the large surface is preheated or hot pressed after the clamps are withdrawn. This has the defects of complex structure, cumbersome movements, long loading and unloading time, and large space occupied in the height direction of the workstation; 3. A spring pin device is added to the upper heating plate or the lower heating plate to clamp the battery cells, and the large surface is preheated or hot pressed after the clamps are withdrawn. This has the defects of high processing difficulty, high assembly requirements, easy jamming of the pins during use, high failure rate, and high probability of puncture on the surface of the battery cells. Therefore, the related hot pressing transfer technology has defects such as poor heating effect, complex structure and high failure rate. Summary of the invention

[0004] Based on this, it is necessary to provide a battery cell hot pressing device to address the problems of complex structure and high failure rate in battery cell hot pressing transportation.

[0005] A battery core hot pressing device, comprising:

[0006] A support plate, the support plate is used to carry the battery core to be hot pressed;

[0007] A material unloading mechanism, which is movably placed on the support plate and is used to transfer the battery core to be hot pressed onto the support plate;

[0008] A pressing mechanism, the pressing mechanism is arranged on the side of the support plate, and the pressing mechanism is used to press the battery core to be hot pressed placed on the support plate;

[0009] A transfer mechanism and a hot pressing mechanism, wherein the transfer mechanism can be movably connected to the pallet, the transfer mechanism is used to transfer the pallet to the hot pressing mechanism, the pallet can be movably arranged on the hot pressing mechanism, and the hot pressing mechanism is used to hot press the battery cells to be hot pressed.

[0010] In one embodiment, the unloading mechanism includes a clamp and an upper pressing block, the upper pressing block is movably connected to the top of the clamp, the clamp includes a bottom plate and a side plate, the bottom plate and the side plate form a limiting portion, and the upper pressing block abuts against the upper surface of the battery cell to be hot pressed.

[0011] In one of the embodiments, the unloading mechanism further includes a unloading pressing plate, and the unloading pressing plate can be movably abutted against the upper surface of the battery core to be hot pressed.

[0012] In one embodiment, the pressing mechanism includes a first pressing knife, a first driving unit, a second pressing knife and a second driving unit, the first driving unit and the second driving unit are respectively arranged on both sides of the support plate, the power output end of the first driving unit is connected to the first pressing knife, and the power output end of the second driving unit is connected to the second pressing knife, the first driving unit is used to drive the first pressing knife to press the battery cell to be hot pressed on the support plate, and the second driving unit is used to drive the second pressing knife to press the battery cell to be hot pressed on the support plate.

[0013] In one of the embodiments, the first pressing knife and the second pressing knife are staggered in the length direction of the support plate.

[0014] In one of the embodiments, a limit block is provided on the surface of the support plate, and the limit block is arranged around the position of the battery core to be hot pressed.

[0015] In one embodiment, the transfer mechanism includes a clamping member, and clamping parts are provided at both ends of the support plate, and the clamping member is used to clamp the clamping part and transfer it to the hot pressing mechanism.

[0016] In one embodiment, the clamping portion is provided with a clamping groove, and the clamping member is movably mounted in the clamping groove.

[0017] In one embodiment, the hot pressing mechanism includes an upper heating plate and a lower heating plate, the support plate is movably disposed on the lower heating plate, the upper heating plate is movably covered on the battery cell to be hot pressed on the support plate, and the upper heating plate and the lower heating plate are used to pressurize and heat the battery cell to be hot pressed.

[0018] In one of the embodiments, a avoidance groove is provided on the bottom surface of the upper heating plate, and the position of the avoidance groove corresponds to the first pressing knife and the second pressing knife.

[0019] The above-mentioned battery cell hot pressing device, by providing a pallet, enables the unloading mechanism to first transfer the battery cells to be hot pressed to the pallet for placement, and fix the battery cells to be hot pressed on the pallet by providing a pressing mechanism, and then transfer the pallet to the hot pressing mechanism by the transfer mechanism, so that the heating mechanism pressurizes and heats the pallet and the battery cells to be hot pressed on the pallet. Since the transfer is carried out by the pallet, there is no need to provide battery cell unloading and battery cell fixing mechanisms on the heating mechanism, so that the hot pressing mechanism heats the battery cells over a large area, and the structure of the transfer pallet is simpler than that of the transfer battery cells, and has the advantages of good heating effect, simple structure and low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of material unloading of a battery cell hot pressing device according to an embodiment of the present application.

[0021] FIG. 2 is a schematic diagram of the transportation of the battery cell hot pressing device described in an embodiment of the present application.

[0022] Figure numbers: 10, battery cell to be hot pressed;

[0023] 100, support plate; 110, clamping part; 110A, clamping groove; 200, unloading mechanism; 211, clamping claw; 212, upper pressure block; 220, unloading pressure plate; 300, pressing mechanism; 310, first pressing knife; 320, first driving unit; 330, second pressing knife; 340, second driving unit; 400, transfer mechanism; 410, clamping member; 500, hot pressing mechanism; 510, lower heating plate; 520, upper heating plate; 520A, avoidance groove. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0030] Referring to FIG. 1 and FIG. 2 , FIG. 1 shows a schematic diagram of unloading a battery cell hot pressing device in an embodiment of the present application, and FIG. 2 shows a schematic diagram of transporting a battery cell hot pressing device in an embodiment of the present application. The battery cell hot pressing device provided in an embodiment of the present application includes a pallet 100, a unloading mechanism 200, a pressing mechanism 300, a transport mechanism 400 and a hot pressing mechanism 500. The pallet 100 is used to carry the battery cell 10 to be hot pressed. The unloading mechanism 200 can be movably placed on the pallet 100, and the unloading mechanism 200 is used to transfer the battery cell 10 to be hot pressed to the pallet 100. The pressing mechanism 300 is arranged on the side of the pallet 100, and the pressing mechanism 300 is used to press the battery cell 10 to be hot pressed placed on the pallet 100. The transfer mechanism 400 can be movably connected to the pallet 100 . The transfer mechanism 400 is used to transfer the pallet 100 to the hot pressing mechanism 500 . The pallet 100 can be movably arranged on the hot pressing mechanism 500 . The hot pressing mechanism 500 is used to hot press the battery cell 10 to be hot pressed.

[0031] The battery cell hot pressing device described in the embodiment of the present application, by setting a pallet 100, enables the unloading mechanism 200 to first transfer the battery cell 10 to be hot pressed to the pallet 100 for placement, and fix the battery cell 10 to be hot pressed on the pallet 100 by setting a pressing mechanism 300, and then transfer the pallet 100 to the hot pressing mechanism 500 by the transfer mechanism 400, so that the heating mechanism 500 pressurizes and heats the pallet 100 and the battery cell 10 to be hot pressed on the pallet 100.

[0032] The battery cell hot pressing device described in the embodiment of the present application, since the transfer is carried out by the pallet 100, there is no need to set a battery cell unloading and battery cell fixing mechanism on the heating mechanism 500, so that the hot pressing mechanism 500 can heat the battery cell over a large area, and the structure of the transfer pallet 100 is simpler than the structure of the transfer battery cell, and has the advantages of good heating effect, simple structure and low failure rate.

[0033] In an optional embodiment, as shown in Figure 1, the unloading mechanism 200 includes a clamp 211 and an upper pressing block 212, the upper pressing block 212 is movably connected to the top of the clamp 211, the clamp 211 includes a bottom plate and a side plate, the bottom plate and the side plate form a limiting portion, and the upper pressing block 212 abuts against the upper surface of the hot-pressed battery cell 10. The clamping jaws 211 and the upper pressing block 212 are used to transfer the battery cells on the production line to the pallet 100. Specifically, the battery cells are clamped from both sides of the battery cells by driving the limiting parts of the multiple clamping jaws 211. The bottom plate is used to support the bottom surface of the battery cell 10 to be hot pressed, and the side plate is used to clamp the side of the battery cell 10 to be hot pressed. The upper pressing block 212 is arranged above the clamping jaws 211, and when clamping the battery cell 10 to be hot pressed, the upper pressing block 212 is driven to abut against the upper surface of the battery cell, so that the battery cell is firmly clamped and grasped by the clamping jaws 211 and the upper pressing block 212, avoiding the battery cell from falling during the clamping process, thereby ensuring production safety.

[0034] Further, as shown in FIG1 , the unloading mechanism 200 further includes an unloading pressing plate 220, which can be movably abutted against the upper surface of the battery cell 10 to be hot pressed. When the unloading mechanism 200 moves the battery cell 10 to be hot pressed onto the support plate 100, the unloading pressing plate 220 is driven to abut against the upper surface of the battery cell 10 to be hot pressed, so that the battery cell 10 to be hot pressed is fixed on the support plate 100, and then the upper pressing block 212 is driven to move upward away from the battery cell 10 to be heated, and then the clamping jaws 211 are driven to move to both sides away from the battery cell 10 to be heated, and finally the unloading pressing plate 220 is driven to move upward away, thereby completing the transportation of the battery cell 10 to be hot pressed. By setting the unloading press plate 220, the battery core 10 to be hot pressed is abutted and fixed when it is separated from the clamp 211 and the upper pressing block 212, so as to avoid the battery core 10 to be hot pressed from being shifted on the pallet 100 or falling from the pallet 100 when it is separated from the clamp 211 and the upper pressing block 212, thereby ensuring production safety.

[0035] In an optional embodiment, as shown in FIG1 , the pressing mechanism 300 includes a first pressing knife 310, a first driving unit 320, a second pressing knife 330, and a second driving unit 340. The first driving unit 320 and the second driving unit 340 are respectively arranged on both sides of the support plate 100. The power output end of the first driving unit 320 is connected to the first pressing knife 310, and the power output end of the second driving unit 340 is connected to the second pressing knife 330. The first driving unit 320 is used to drive the first pressing knife 310 to press the battery core 10 to be heated and pressed on the support plate 100, and the second driving unit 340 is used to drive the second pressing knife 330 to press the battery core 10 to be heated and pressed on the support plate 100. By arranging the first pressing knife 310 and the second pressing knife 330, before the battery core 10 to be heated and pressed is placed on the support plate 100, the first pressing knife 310 and the second pressing knife 330 are in an avoidance position, and the battery core 10 to be heated and pressed can be placed on the support plate 100 smoothly. Then, the first driving unit 320 drives the first pressing knife 310 to press one side of the battery cell 10 to be hot pressed when the battery cell 10 to be hot pressed is placed on the support plate 100. Similarly, the second driving unit 340 drives the second pressing knife 330 to press the battery cell 10 to be hot pressed on the other side, thereby fixing the battery cell 10 to be hot pressed on the support plate 10, ensuring the accurate position of the battery cell during hot pressing. The thickness of the first pressing knife 310 and the second pressing knife 320 are relatively thin, and the heat of the hot pressing mechanism 500 can be easily transferred to the surface of the battery cell through the first pressing knife 310 and the second pressing knife 320, avoiding excessive heat loss and having an excellent heating effect.

[0036] In a specific embodiment, as shown in FIG1 , the first pressing knife 310 and the second pressing knife 330 are staggered in the length direction of the support plate 100. By staggering the first pressing knife 310 and the second pressing knife 320, it is possible to ensure that the pressure applied to the hot pressed battery cell 10 is balanced, and the hot pressed battery cell 10 is prevented from falling due to uneven force, thereby ensuring the safety of the battery cell. In a specific example, there can be multiple settings for the first pressing knife 310 and the second pressing knife 330. For example, the first pressing knife 310 and the second pressing knife 330 are respectively set at opposite ends of the length direction, that is, they are set diagonally, so that the first pressing knife 310 and the second pressing knife 330 are evenly applied to the hot pressed battery cell 10.

[0037] In a specific embodiment, the first driving unit 320 and the second driving unit 340 are rotary lifting motors. Since the first driving unit 320 and the second driving unit 340 need to drive the first pressing knife 310 and the second pressing knife 330 from the avoidance position to the upper surface of the battery cell, and apply a clamping force to the upper surface of the battery cell 10 to be hot pressed, by setting the first driving unit 320 and the second driving unit 340 as rotary motors, the first pressing knife 310 and the second pressing knife 330 can be driven to rotate from the avoidance position to the upper surface of the battery cell while completing the pressing action, thereby shortening the processing time and having the advantages of simple structure and high efficiency.

[0038] In an optional embodiment, a limit block is provided on the surface of the support plate 100, and the limit block is arranged around the placement position of the battery cell 10 to be hot pressed. The limit block is arranged according to the placement position of the battery cell 10 to be hot pressed, and when the battery cell 10 to be hot pressed is placed on the support plate 100, it is inserted into the area surrounded by the limit block, so that the placement position is more accurate, and the limit block can limit the horizontal movement of the battery cell during the transfer of the support plate 100, so that the battery cell can be transferred more stably to avoid accidents such as falling.

[0039] In an optional embodiment, as shown in FIG2 , the transfer mechanism 400 includes a clamping member 410, and clamping parts 110 are provided at both ends of the pallet 100. The clamping member 410 is used to clamp the clamping part 110 and transfer it to the hot pressing mechanism 500. In order to transfer the pallet 100 to the hot pressing mechanism 500, the clamping parts 110 are provided at both ends of the pallet 100, and then the clamping parts 110 are clamped by the clamping member 410, and the clamping member 410 is moved to transfer the pallet 100 to the hot pressing mechanism 500. Since the transfer is performed on the pallet 100, there is no need to consider the impact on the battery cell during the transfer process, and the accuracy and speed requirements of the driving clamping member 410 are low. Compared with the refined operation for the transfer of the battery cell, the transfer time can be reduced and the processing efficiency can be improved.

[0040] Further, as shown in Fig. 1, the clamping portion 110 is provided with a clamping groove 110A, and the clamping member 410 is movably mounted in the clamping groove 110A. By providing the clamping groove 110A, the clamping member 410 can better position the clamping portion 110 when clamping the clamping portion 110, and prevent the risk of the clamping member 410 falling off during the transfer process, thereby improving the stability of the transfer.

[0041] In an optional embodiment, as shown in FIG. 2 , the hot pressing mechanism 500 includes an upper heating plate 520 and a lower heating plate 510, the support plate 100 can be movably arranged on the lower heating plate 510, the upper heating plate 520 can be movably covered on the battery cell 10 to be hot pressed on the support plate 100, and the upper heating plate 520 and the lower heating plate 510 are used to pressurize and heat the battery cell 10 to be hot pressed. After the support plate 100 is transferred to the lower heating plate 510, the upper heating plate 520 is moved to cover the upper surface of the battery cell 10 to be hot pressed, and then the upper heating plate 520 and the lower heating plate 510 heat and pressurize the battery cell 10 to be hot pressed, and the heat of the lower heating plate 510 can be transferred to the battery cell through the support plate 100, so that the battery cell completes the hot pressing process.

[0042] In an optional embodiment, as shown in FIG2 , the bottom surface of the upper heating plate 520 is provided with an avoidance groove 520A, and the position of the avoidance groove 520A corresponds to the first pressing knife 310 and the second pressing knife 330. In order to prevent the first pressing knife 310 and the second pressing knife 330 from hindering the upper heating plate 520 from contacting the battery cell 10 to be hot-pressed, the avoidance groove 520A is provided at the position of the upper heating plate 520 corresponding to the first pressing knife 310 and the second pressing knife 330, so that when the upper heating plate 520 contacts the battery cell 10 to be hot-pressed, the first pressing knife 310 and the second pressing knife 330 are placed in the avoidance groove 520A, so that the upper heating plate 520 is in full contact with the battery cell 10 to be hot-pressed, which has the advantages of high heating efficiency and good effect.

[0043] The battery cell hot pressing device described in the embodiment of the present application has the following beneficial effects:

[0044] 1. By transporting the battery via the pallet 100, there is no need to set a battery cell unloading and battery cell fixing mechanism on the heating mechanism 500, so that the hot pressing mechanism 500 can heat the battery cell over a large area. The structure of the transport pallet 100 is simpler than that of the transport battery cell, and has the advantages of good heating effect, simple structure and low failure rate.

[0045] 2. By setting the upper pressing block 212 above the clamping jaws 211, the upper pressing block 212 is driven to abut against the upper surface of the battery cell when clamping the battery cell 10 to be hot-pressed, so that the battery cell is firmly clamped and grasped by the clamping jaws 211 and the upper pressing block 212, avoiding the battery cell from falling during the clamping process, thereby ensuring production safety.

[0046] 3. By setting an avoidance groove 520A at the position of the upper heating plate 520 corresponding to the first pressing knife 310 and the second pressing knife 330, when the upper heating plate 520 contacts the battery cell 10 to be hot-pressed, the first pressing knife 310 and the second pressing knife 330 are placed in the avoidance groove 520A, so that the upper heating plate 520 is in full contact with the battery cell 10 to be hot-pressed, which has the advantages of high heating efficiency and good effect.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0048] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A battery core hot pressing device, characterized in that: include: A support plate (100), the support plate (100) being used to support the battery core (10) to be hot pressed; a material unloading mechanism (200), the material unloading mechanism (200) being movably placed on the support plate (100), the material unloading mechanism (200) being used to transfer the battery core (10) to be hot pressed onto the support plate (100); A pressing mechanism (300), the pressing mechanism (300) being arranged on a side of the support plate (100), the pressing mechanism (300) being used to press the battery core (10) to be hot-pressed and placed on the support plate (100); A transfer mechanism (400) and a hot pressing mechanism (500), wherein the transfer mechanism (400) is movably connected to the support plate (100), the transfer mechanism (400) is used to transfer the support plate (100) to the hot pressing mechanism (500), the support plate (100) is movably arranged on the hot pressing mechanism (500), and the hot pressing mechanism (500) is used to hot press the battery core (10) to be hot pressed.

2. The battery core hot pressing device according to claim 1, characterized in that: The unloading mechanism (200) comprises a clamp (211) and an upper pressing block (212), wherein the upper pressing block (212) is movably connected to the top of the clamp (211), and the clamp (211) comprises a bottom plate and a side plate, wherein the bottom plate and the side plate form a limiting portion, and the upper pressing block (212) abuts against the upper surface of the battery core (10) to be hot pressed.

3. The battery core hot pressing device according to claim 2, characterized in that: The material unloading mechanism (200) further comprises a material unloading pressing plate (220), wherein the material unloading pressing plate (220) is movably abutted against the upper surface of the battery core (10) to be hot pressed.

4. The battery core hot pressing device according to claim 1, characterized in that: The pressing mechanism (300) comprises a first pressing knife (310), a first driving unit (320), a second pressing knife (330) and a second driving unit (340); the first driving unit (320) and the second driving unit (340) are respectively arranged on both sides of the support plate (100); a power output end of the first driving unit (320) is connected to the first pressing knife (310); a power output end of the second driving unit (340) is connected to the second pressing knife (330); the first driving unit (320) is used to drive the first pressing knife (310) to press the battery core (10) to be heated and pressed on the support plate (100); and the second driving unit (340) is used to drive the second pressing knife (330) to press the battery core (10) to be heated and pressed on the support plate (100).

5. The battery core hot pressing device according to claim 4, characterized in that: The first pressing knife (310) and the second pressing knife (330) are arranged in a staggered manner in the length direction of the support plate (100).

6. The battery core hot pressing device according to claim 4, characterized in that: A limit block is provided on the surface of the support plate (100), and the limit block is arranged around the placement position of the battery core (10) to be hot pressed.

7. The battery core hot pressing device according to claim 1, characterized in that: The transfer mechanism (400) comprises a clamping piece (410), and clamping portions (110) are provided at both ends of the support plate (100), and the clamping piece (410) is used to clamp the clamping portion (110) and transfer it to the hot pressing mechanism (500).

8. The battery core hot pressing device according to claim 7, characterized in that: The clamping portion (110) is provided with a clamping groove (110A), and the clamping member (410) is movably mounted in the clamping groove (110A).

9. The battery core hot pressing device according to claim 4, characterized in that: The hot pressing mechanism (500) comprises an upper heating plate (520) and a lower heating plate (510); the support plate (100) is movably arranged on the lower heating plate (510); the upper heating plate (520) is movably covered on the battery cell (10) to be hot pressed on the support plate (100); the upper heating plate (520) and the lower heating plate (510) are used to pressurize and heat the battery cell (10) to be hot pressed.

10. The battery core hot pressing device according to claim 9, characterized in that: The bottom surface of the upper heating plate (520) is provided with an avoidance groove (520A), and the position of the avoidance groove (520A) corresponds to the first pressing knife (310) and the second pressing knife (330).

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