Battery cell processing equipment

By designing battery cell processing equipment that integrates slice, laminate and preheating and hot pressing functions, the problems of pole sheet misalignment and particle pollution during battery cell processing are solved, and efficient processing of battery cells and improvement of yield rates are achieved.

CN222883573UActive Publication Date: 2025-05-16SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421310103.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-05-16
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

During the processing of existing battery cells, the problems of pole sheet misalignment and particle contamination are prone to occur, resulting in a low yield on the battery cells.

Method used

A battery cell processing equipment integrating slice, lamination and preheating hot pressing functions is designed. Through the slice mechanism, lamination mechanism and preheating hot pressing mechanism arranged in sequence in the first direction, the overall processing of the battery cell is realized, avoiding the use of additional preheating and hot pressing equipment.

Benefits of technology

It effectively avoids the risk of polar sheet misalignment and particle contamination during the transport of the battery cell after lamination, and significantly improves the yield rate of the battery cell.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222883573U_ABST
    Figure CN222883573U_ABST
Patent Text Reader

Abstract

The embodiment of the utility model provides battery cell processing equipment. The battery cell processing equipment comprises a slicing mechanism, a lamination mechanism and a preheating hot-pressing mechanism which are sequentially arranged along a first direction, wherein the slicing mechanism is used for slicing to obtain a positive plate and a negative plate, the lamination mechanism is used for laminating a diaphragm, the positive plate and the negative plate to obtain a laminated battery cell, and the preheating and hot pressing mechanism is used for preheating and hot pressing the laminated battery cell to obtain a battery cell. According to the invention, the risks of pole piece dislocation and particle pollution of the laminated battery cell in the transfer process can be avoided, and the yield of the battery cell is greatly increased.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application belongs to the field of battery processing technology, and specifically relates to a battery cell processing equipment. Background Art

[0002] With the continuous development of the new energy industry in recent years, lithium batteries have played an increasingly important role as the energy source of various electronic products, especially as an important part of new energy vehicles. Due to the continuous pursuit of energy density, space utilization, cost and efficiency, the stacking process is suitable for large-size batteries, has high stacking efficiency, and improves the quality of battery cells. It has been more and more widely used. As a common battery cell processing equipment, the cutting and stacking machine is widely used in the stacking and processing of battery cells.

[0003] In the existing technology, the cutting and stacking machine uses a cutter to cut the positive and negative pole pieces, and then transfers them to the diaphragm position by the feeding clamp, and then combines them into battery cells after stacking. The stacked battery cells are then transported to the cold press for shaping by a belt conveyor, and then the shaped battery cells are transferred to the preheating furnace and hot press by the logistics line to complete the subsequent preheating and hot pressing processes. The entire battery cell production line has many equipments and occupies a large space. Moreover, during the transportation process of belt conveyor or logistics line conveyor, the stacked battery cells are prone to the risk of pole piece dislocation and particle contamination, which greatly reduces the yield rate of the battery cells. Utility Model Content

[0004] The present application aims to provide a battery cell processing device to solve the problems of pole piece misalignment and particle contamination that are prone to occur in the existing battery cell processing process.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The present application discloses a battery core processing device, which comprises: a slicing mechanism, a laminating mechanism and a preheating and hot pressing mechanism arranged in sequence along a first direction; wherein:

[0007] The slicing mechanism is used for slicing to obtain positive and negative electrodes, the laminating mechanism is used for laminating the diaphragm, the positive electrode and the negative electrode to obtain a laminated battery cell, and the preheating and hot pressing mechanism is used for preheating and hot pressing the laminated battery cell to obtain a battery cell.

[0008] Optionally, the preheating and hot pressing mechanism comprises: a preheating furnace and a hot pressing machine; wherein,

[0009] The preheating furnace is used to preheat the laminated battery core, and the hot press is used to hot-press the preheated laminated battery core.

[0010] Optionally, the preheating and hot pressing mechanism further comprises: a cold press, wherein the cold press, the preheating furnace and the hot press are arranged in sequence along a second direction, and the second direction is arranged at a preset angle with the first direction; wherein,

[0011] The cold press is used to perform cold pressing and shaping on the laminated battery core, and the preheating furnace is used to preheat the laminated battery core after cold pressing and shaping.

[0012] Optionally, the preset angle is a right angle.

[0013] Optionally, the preheating and hot pressing mechanism further includes: a first transfer member and a second transfer member; wherein,

[0014] The first transport component is disposed between the cold press and the preheating furnace, and is used to transport the laminated battery core after cold pressing and shaping to the preheating furnace;

[0015] The second transport member is disposed between the preheating furnace and the hot press, and is used to transport the preheated laminated battery cells to the hot press.

[0016] Optionally, the first transfer member and the second transfer member include at least one of a robot, a belt conveyor, and a chain conveyor.

[0017] Optionally, the heat press comprises: a first frame, and a first driving member, a first heating plate and a second heating plate installed on the first frame; wherein,

[0018] The first heating plate and the second heating plate are arranged relatively spaced apart, and there is a space for accommodating the laminated battery core between the first heating plate and the second heating plate;

[0019] The first driving member is connected to the second heating plate, and the first driving member is used to drive the second heating plate to move toward or away from the first heating plate to achieve hot pressing of the laminated battery core.

[0020] Optionally, the cold press comprises: a second frame, and a second driving member, a first pressing plate, and a second pressing plate installed on the second frame; wherein,

[0021] The first pressing plate and the second pressing plate are arranged relatively spaced apart, and there is a space between the first pressing plate and the second pressing plate for accommodating the laminated battery core;

[0022] The second driving member is connected to the second pressing plate, and the second driving member is used to drive the second pressing plate to move toward or away from the first pressing plate to achieve cold pressing and shaping of the laminated battery core.

[0023] Optionally, the battery core processing equipment further includes: a first transport mechanism and a second transport mechanism; wherein,

[0024] The first transport mechanism is disposed between the slicing mechanism and the laminating mechanism, and is used to transport the positive electrode sheet and the negative electrode sheet to the laminating mechanism;

[0025] The second transport mechanism is disposed between the stacking mechanism and the preheating and hot-pressing mechanism, and the second transport mechanism is used to transport the stacked battery cells to the preheating and hot-pressing mechanism.

[0026] Optionally, the first transfer mechanism includes at least one of a belt conveyor and a chain conveyor, and the second transfer mechanism includes a robot.

[0027] In an embodiment of the present application, the battery cell processing equipment may include a slicing mechanism, a laminating mechanism, and a preheating and hot pressing mechanism arranged in sequence along a first direction. Among them, the slicing mechanism can be used for slicing to obtain positive and negative electrodes. The laminating mechanism can be used to stack the diaphragm, the positive electrode and the negative electrode to obtain a laminated battery cell. The preheating and hot pressing mechanism is used to preheat and hot press the laminated battery cell to obtain a battery cell. Since the battery cell processing equipment integrates the functions of lamination, preheating and hot pressing, it avoids the operation of transporting the battery cell through a logistics line to an additional preheating furnace and a hot press for subsequent preheating and hot pressing processes. In this way, the risk of electrode misalignment and particle contamination in the battery cell after lamination during transportation can be avoided, which greatly increases the yield rate of the battery cell.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 It is a structural schematic diagram of a battery core processing device described in an embodiment of the present application;

[0031] Figure 2 is a structural schematic diagram of another battery cell processing equipment described in an embodiment of the present application;

[0032] Figure 3 It is a structural schematic diagram of a cold press machine described in an embodiment of the present application;

[0033] Figure 4 It is a structural schematic diagram of a preheating furnace described in an embodiment of the present application;

[0034] Figure 5 yes Figure 4 The detailed structural diagram of the preheating furnace A position shown;

[0035] Figure 6 It is a structural schematic diagram of a hot press described in an embodiment of the present application.

[0036] Figure numerals: 10 - slicing mechanism, 11 - stacking mechanism, 12 - preheating and hot pressing mechanism, 121 - cold press, 1211 - second frame, 1212 - second driving member, 1213 - first pressing plate, 1214 - second pressing plate, 122 - preheating furnace, 1221 - first preheating plate, 1222 - second preheating plate, 123 - hot press, 1231 - first frame, 1232 - first driving member, 1233 - first heating plate, 1234 - second heating plate, 124 - first transfer member, 125 - second transfer member, 13 - first transfer mechanism, 14 - second transfer mechanism, 20 - stacked battery cell, x - first direction, y - second direction. DETAILED DESCRIPTION

[0037] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0039] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] An embodiment of the present application provides a battery cell processing device, which can be used to process battery cells, especially stacked battery cells.

[0042] Reference Figure 1 , shows a schematic structural diagram of a battery cell processing device according to an embodiment of the present application, such as Figure 1 As shown, the battery cell processing equipment may specifically include: a slicing mechanism 10, a laminating mechanism 11 and a preheating and hot pressing mechanism 12 arranged in sequence along a first direction x; wherein the slicing mechanism 10 can be used for slicing to obtain positive electrode sheets and negative electrode sheets, the laminating mechanism 11 can be used to stack the diaphragm, the positive electrode sheets and the negative electrode sheets to obtain a laminated battery cell 20, and the preheating and hot pressing mechanism 12 can be used to preheat and hot press the laminated battery cell 20 to obtain a battery cell.

[0043] In an embodiment of the present application, the battery cell processing equipment may include a slicing mechanism 10, a laminating mechanism 11, and a preheating and hot pressing mechanism 12 arranged in sequence along a first direction x. Among them, the slicing mechanism 10 can be used for slicing to obtain positive and negative electrodes. The laminating mechanism 11 can be used to stack the diaphragm, the positive electrode and the negative electrode to obtain a laminated battery cell 20. The preheating and hot pressing mechanism 12 can be used to preheat and hot press the laminated battery cell 20 to obtain a battery cell. Since the battery cell processing equipment integrates the functions of lamination, preheating and hot pressing, it avoids the operation of transporting the battery cell to an additional preheating furnace 122 and a hot press 123 through a logistics line for subsequent preheating and hot pressing processes. In this way, the risk of electrode misalignment and particle contamination in the battery cell after lamination during transportation can be avoided, which greatly increases the yield rate of the battery cell.

[0044] In a specific application, the slicing mechanism 10 can be used to cut the positive and negative electrode coils into the required sheet-shaped electrode sheets, namely the positive electrode sheets and the negative electrode sheets. The positive electrode sheets and the negative electrode sheets can be transported to the laminating mechanism 11 for Z-type lamination of the positive electrode sheets, the negative electrode sheets and the separator to obtain the laminated battery cell 20. In practical applications, the slicing mechanism 10 may include two parallel production lines, one for producing the positive electrode sheets and the other for producing the negative electrode sheets. The laminated battery cell 20 is unloaded to the preheating and hot pressing mechanism 12 through the glue pasting, so that the laminated battery cell 20 is preheated and hot pressed by the preheating and hot pressing mechanism 12 to obtain a battery cell.

[0045] Specifically, the preheating and hot pressing mechanism 12 may include: a preheating furnace 122 and a hot press 123; wherein the preheating furnace 122 may be used to preheat the laminated battery cell 20 so that the adhesive inside the laminated battery cell 20 is melted by the heat; the hot press 123 may be used to hot press the preheated laminated battery cell 20 so as to bond the electrode and the diaphragm together through the melted adhesive.

[0046] In the embodiment of the present application, by integrating the preheating furnace 122 for preheating the battery cell and the hot press 123 for hot pressing the battery cell in the same device, the operation of setting the preheating furnace 122 and the hot press 123 in different devices and using logistics lines to transport the laminated battery cell 20 between different devices in the traditional technology can be eliminated. In this way, the risk of pole piece misalignment and particle contamination in the laminated battery cell 20 during transportation can be avoided, and the yield rate of the battery cell can be greatly improved.

[0047] like Figure 1 As shown, the preheating and hot pressing mechanism 12 may also include: a cold press machine 121, the cold press machine 121, the preheating furnace 122 and the hot press machine 123 are arranged in sequence along the second direction y, and the second direction y is arranged at a preset angle with the first direction x; wherein the cold press machine 121 can be used to cold press and shape the laminated battery cell 20, and the preheating furnace 122 can be used to preheat the laminated battery cell 20 after cold pressing and shaping.

[0048] In a specific application, the cold press 121 can be used to perform cold pressing and shaping on the laminated battery core 20, improve the position accuracy of the positive electrode sheet and the negative electrode sheet in the laminated battery core 20, and thus improve the quality of the final battery core product. In the embodiment of the present application, by arranging the cold press 121, the preheating furnace 122, and the hot press 123 along the second direction y, and making the second direction y and the first direction x at a preset angle, the space occupied by the battery core processing equipment in the first direction x can be reduced, which is beneficial to the overall layout of the battery core processing equipment.

[0049] Optionally, the preset angle is a right angle. Figure 1 As shown, when the angle between the second direction y and the first direction x is a right angle, the space occupied by the preheating and hot pressing mechanism 12 in the first direction x can be made as small as possible. In this way, the space occupied by the battery cell processing equipment in the first direction x can be greatly reduced, which is beneficial to the overall layout of the battery cell processing equipment.

[0050] It should be noted that in specific applications, the angle between the second direction y and the first direction x can also be other values. For example, the angle can be 30 degrees, 55 degrees or 78 degrees, etc. The embodiment of the present application does not specifically limit the angle between the second direction y and the first direction x.

[0051] Reference Figure 2 , shows a structural schematic diagram of another battery core processing equipment described in an embodiment of the present application, such as Figure 2 As shown, the preheating and hot pressing mechanism 12 may further include: a first transfer member 124 and a second transfer member 125; wherein the first transfer member 124 is arranged between the cold press 121 and the preheating furnace 122, and the first transfer member 124 can be used to transfer the stacked battery cells 20 after cold pressing and shaping to the preheating furnace 122; the second transfer member 125 is arranged between the preheating furnace 122 and the hot press 123, and the second transfer member 125 can be used to transfer the preheated stacked battery cells 20 to the hot press 123.

[0052] In a specific application, after the cold press 121 completes the cold pressing and shaping of the laminated battery core 20, the first transporter 124 can transport the laminated battery core 20 to the preheating furnace 122. After the preheating furnace 122 heats the laminated battery core 20 so that the rubber inside the laminated battery core 20 melts, the second transporter 125 can transport the laminated battery core 20 to the hot press 123, so that the hot press 123 can perform hot pressing operation on the laminated battery core 20. Through the transport operation of the first transporter 124 and the second transporter 125, the laminated battery core 20 can be quickly circulated inside the preheating and hot pressing mechanism 12, so as to improve the preheating and hot pressing efficiency of the laminated battery core 20.

[0053] Optionally, the first transfer member 124 and the second transfer member 125 may include but are not limited to at least one of a robot, a belt conveyor, and a chain conveyor. The embodiment of the present application does not limit the specific forms of the first transfer member 124 and the second transfer member 125.

[0054] like Figure 2 As shown, the battery cell processing equipment may further include: a first transport mechanism 13 and a second transport mechanism 14; wherein the first transport mechanism 13 is arranged between the slicing mechanism 10 and the laminating mechanism 11, and after the slicing mechanism 10 slices the positive electrode sheet and the negative electrode sheet to obtain the positive electrode sheet and the negative electrode sheet, the first transport mechanism 13 may be used to transport the positive electrode sheet and the negative electrode sheet to the laminating mechanism 11. The second transport mechanism 14 is arranged between the laminating mechanism 11 and the preheating and hot pressing mechanism 12, and after the laminating mechanism 11 obtains the laminated battery cell 20 by laminating the positive electrode sheet, the negative electrode sheet and the diaphragm laminate, the second transport mechanism 14 may be used to transport the laminated battery cell 20 to the preheating and hot pressing mechanism 12, so that the preheating and hot pressing mechanism 12 may perform preheating and hot pressing operations on the laminated battery cell 20. Through the transfer operation of the first transfer mechanism 13 and the second transfer mechanism 14 , the stacked battery cells 20 can be quickly transferred between the slicing mechanism 10 , the stacking mechanism 11 and the preheating and hot pressing mechanism 12 , so as to improve the overall processing efficiency of the stacked battery cells 20 .

[0055] Optionally, the first transport mechanism 13 may include at least one of a belt conveyor and a chain conveyor, and transport the positive electrode sheet and the negative electrode sheet to the stacking mechanism 11 by means of a logistics line, so that the transport efficiency is high. The second transport mechanism 14 may include a manipulator, that is, the stacked battery cell 20 is transported to the preheating and hot pressing mechanism 12 by means of the manipulator grabbing, so as to achieve a compact layout between the stacking mechanism 11 and the preheating and hot pressing mechanism 12.

[0056] Reference Figure 3 , shows a schematic structural diagram of a cold press machine described in an embodiment of the present application, such as Figure 3 As shown, the cold press machine 121 may specifically include: a second frame 1211 and a second driving member 1212, a first pressing plate 1213 and a second pressing plate 1214 installed on the second frame 1211; wherein the first pressing plate 1213 and the second pressing plate 1214 are arranged relatively spaced apart, and there is a space between the first pressing plate 1213 and the second pressing plate 1214 to accommodate the laminated battery cells 20; the second driving member 1212 is connected to the second pressing plate 1214, and the second driving member 1212 can be used to drive the second pressing plate 1214 to move toward or away from the first pressing plate 1213, so as to realize the cold pressing and shaping of the laminated battery cells 20.

[0057] like Figure 3As shown, the first pressing plate 1213 can be used to contact the lower surface of the laminated battery core 20, and the second pressing plate 1214 can be used to contact the upper surface of the laminated battery core 20. The first pressing plate 1213 can be fixedly connected to the second frame 1211, and the second pressing plate 1214 can be movably connected to the second frame 1211. The second driving member 1212 can be used to drive the second pressing plate 1214 to move toward the first pressing plate 1213 to achieve cold pressing shaping of the laminated battery core 20. After completing the cold pressing shaping of the laminated battery core 20, the second driving member 1212 can drive the second pressing plate 1214 to move away from the first pressing plate 1213 to release the pressing of the laminated battery core 20 and facilitate the removal of the laminated battery core 20.

[0058] In a specific application, the laminated battery core 20 can be transferred to the cold press 121 by a manipulator, and the manipulator can withdraw after detecting that the laminated battery core 20 has been placed in place. The second driving member 1212 can drive the second pressing plate 1214 to perform cold pressing and shaping on the laminated battery core 20. In practical applications, a pressure sensor can also be provided on the first pressing plate 1213 and / or the second pressing plate 1214 to detect the pressure on the laminated battery core 20 in real time to avoid insufficient pressure or excessive pressure, so as to improve the quality of cold pressing and shaping of the laminated battery core 20.

[0059] Reference Figure 4 , showing a schematic diagram of the structure of a preheating furnace according to an embodiment of the present application, referring to Figure 5 , showing Figure 4 The detailed structural diagram of the preheating furnace A is shown in FIG. Figure 4 As shown, the preheating furnace 122 may be provided with a plurality of preheating stations, and one of the preheating stations may be used to perform cold pressing and shaping on a laminated battery core 20. By providing a plurality of preheating stations, a plurality of laminated battery cores 20 may be preheated at the same time, so as to improve the preheating efficiency of the laminated battery core 20. Figure 5 As shown, each preheating station includes a first preheating plate 1221 and a second preheating plate 1222 that are arranged relatively spaced apart, and the laminated battery cell 20 can be placed between the first preheating plate 1221 and the second preheating plate 1222. The first preheating plate 1221 can heat the laminated battery cell 20 from the bottom surface of the laminated battery cell 20, and the second preheating plate 1222 can move toward the first preheating plate 1221 under the drive of the driving member and abut against the top surface of the laminated battery cell 20 to heat the laminated battery cell 20 from the top surface of the laminated battery cell 20. Under the joint heating and baking action of the first preheating plate 1221 and the second preheating plate 1222, the glue in the laminated battery cell 20 can be completely melted to achieve sufficient preheating of the laminated battery cell 20.

[0060] Reference Figure 6 , shows a schematic structural diagram of a hot press machine described in an embodiment of the present application, such as Figure 6 As shown, the hot press 123 may specifically include: a first frame 1231 and a first driving member 1232, a first heating plate 1233 and a second heating plate 1234 installed on the first frame 1231; wherein the first heating plate 1233 and the second heating plate 1234 are arranged relatively spaced apart, and there is a space between the first heating plate 1233 and the second heating plate 1234 to accommodate the laminated battery cells 20; the first driving member 1232 is connected to the second heating plate 1234, and the first driving member 1232 can drive the second heating plate 1234 to move toward or away from the first heating plate 1233 to achieve hot pressing of the laminated battery cells 20.

[0061] like Figure 6 As shown, the first heating plate 1233 can be used to contact the lower surface of the laminated battery core 20, and the second heating plate 1234 can be used to contact the upper surface of the laminated battery core 20. The first heating plate 1233 can be fixedly connected to the first frame 1231, and the second heating plate 1234 can be movably connected to the first frame 1231. The first driving member 1232 can be used to drive the second heating plate 1234 to move toward the first heating plate 1233 to achieve hot pressing of the laminated battery core 20. After completing the hot pressing of the laminated battery core 20, the first driving member 1232 can drive the second heating plate 1234 to move away from the first heating plate 1233 to release the pressing of the laminated battery core 20 and facilitate the removal of the laminated battery core 20.

[0062] In a specific application, the laminated battery cell 20 can be transferred to the hot press 123 by a manipulator, and the manipulator can withdraw after detecting that the laminated battery cell 20 has been placed in place. The first driving member 1232 can drive the second heating plate 1234 to hot press the laminated battery cell 20. In practical applications, a pressure sensor can also be provided on the first heating plate 1233 and / or the second heating plate 1234 to detect the pressure on the laminated battery cell 20 in real time to avoid insufficient or excessive pressure, so as to improve the quality of hot pressing of the laminated battery cell 20. After the hot pressing is completed, the battery cell can be unloaded and transferred to the next inspection process, for example, an X-ray inspection process, to detect the quality of the battery cell.

[0063] In summary, the battery cell processing equipment described in the embodiment of the present application may at least include the following advantages:

[0064] In an embodiment of the present application, the battery cell processing equipment may include a slicing mechanism, a laminating mechanism, and a preheating and hot pressing mechanism arranged in sequence along a first direction. Among them, the slicing mechanism can be used for slicing to obtain positive and negative electrodes. The laminating mechanism can be used to stack the diaphragm, the positive electrode and the negative electrode to obtain a laminated battery cell. The preheating and hot pressing mechanism is used to preheat and hot press the laminated battery cell to obtain a battery cell. Since the battery cell processing equipment integrates the functions of lamination, preheating and hot pressing, it avoids the operation of transporting the battery cell through a logistics line to an additional preheating furnace and a hot press for subsequent preheating and hot pressing processes. In this way, the risk of electrode misalignment and particle contamination in the battery cell after lamination during transportation can be avoided, which greatly increases the yield rate of the battery cell.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery core processing equipment, characterized in that: The battery core processing equipment comprises: a slicing mechanism, a laminating mechanism and a preheating and hot pressing mechanism arranged in sequence along a first direction; wherein, The slicing mechanism is used for slicing to obtain positive and negative electrodes, the laminating mechanism is used for laminating the diaphragm, the positive electrode and the negative electrode to obtain a laminated battery cell, and the preheating and hot pressing mechanism is used for preheating and hot pressing the laminated battery cell to obtain a battery cell.

2. The battery core processing equipment according to claim 1, characterized in that: The preheating and hot pressing mechanism comprises: a preheating furnace and a hot pressing machine; wherein, The preheating furnace is used to preheat the laminated battery core, and the hot press is used to hot-press the preheated laminated battery core.

3. The battery core processing equipment according to claim 2, characterized in that: The preheating and hot pressing mechanism further includes: a cold press, wherein the cold press, the preheating furnace and the hot press are arranged in sequence along a second direction, and the second direction is arranged at a preset angle with the first direction; wherein The cold press is used to perform cold pressing and shaping on the laminated battery core, and the preheating furnace is used to preheat the laminated battery core after cold pressing and shaping.

4. The battery core processing equipment according to claim 3, characterized in that: The preset angle is a right angle.

5. The battery core processing equipment according to claim 3, characterized in that: The preheating and hot pressing mechanism further includes: a first transfer member and a second transfer member; wherein, The first transport component is disposed between the cold press and the preheating furnace, and is used to transport the laminated battery core after cold pressing and shaping to the preheating furnace; The second transport member is disposed between the preheating furnace and the hot press, and is used to transport the preheated laminated battery cells to the hot press.

6. The battery core processing equipment according to claim 5, characterized in that: The first transfer part and the second transfer part include at least one of a robot, a belt conveyor, and a chain conveyor.

7. The battery core processing equipment according to claim 2, characterized in that: The hot press comprises: a first frame, and a first driving member, a first heating plate and a second heating plate installed on the first frame; wherein, The first heating plate and the second heating plate are arranged relatively spaced apart, and there is a space for accommodating the laminated battery core between the first heating plate and the second heating plate; The first driving member is connected to the second heating plate, and the first driving member is used to drive the second heating plate to move toward or away from the first heating plate to achieve hot pressing of the laminated battery core.

8. The battery core processing equipment according to claim 3, characterized in that: The cold press comprises: a second frame, a second driving member, a first pressing plate and a second pressing plate installed on the second frame; wherein, The first pressing plate and the second pressing plate are arranged relatively spaced apart, and there is a space between the first pressing plate and the second pressing plate for accommodating the laminated battery core; The second driving member is connected to the second pressing plate, and the second driving member is used to drive the second pressing plate to move toward or away from the first pressing plate to achieve cold pressing and shaping of the laminated battery core.

9. The battery core processing equipment according to claim 1, characterized in that: The battery core processing equipment further includes: a first transport mechanism and a second transport mechanism; wherein, The first transport mechanism is disposed between the slicing mechanism and the laminating mechanism, and is used to transport the positive electrode sheet and the negative electrode sheet to the laminating mechanism; The second transport mechanism is disposed between the stacking mechanism and the preheating and hot-pressing mechanism, and the second transport mechanism is used to transport the stacked battery cells to the preheating and hot-pressing mechanism.

10. The battery core processing equipment according to claim 9, characterized in that: The first transfer mechanism includes at least one of a belt conveyor and a chain conveyor, and the second transfer mechanism includes a robot.