Infiltration device and battery production line

Abstract

The utility model discloses an infiltration device and a battery production line, and the infiltration device comprises a tray; the electromagnetic coil is arranged on a bottom plate of the tray; and the elastic shifting piece is arranged on the bottom surface of the interior of the first shell on the battery cell, and under the condition that the battery cell is placed on the bottom plate, the electromagnetic coil can drive the elastic shifting piece to move in the height direction of the battery cell after being charged and discharged. According to the scheme provided by the invention, when the electromagnetic coil is electrified to generate magnetism, the electromagnetic coil adsorbs the elastic shifting piece to bend towards one side of the bottom surface in the first shell, when the electromagnetic coil is powered off, the magnetic force acting on the elastic shifting piece disappears, the elastic shifting piece rebounds, and at the moment, the elastic shifting piece applies upward force to electrolyte in the battery cell, so that the electrolyte in the battery cell is separated from the battery cell. Therefore, the electrolyte is driven to infiltrate upwards, so that the electrolyte overcomes the gravity to infiltrate the pole piece quickly, the infiltration of the battery cell is accelerated, and the infiltration effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell preparation, and in particular to an impregnation device and a battery production line. Background Art

[0002] In the production process of battery cells, after the battery cells are filled with electrolyte and left to stand, the battery cells need to be acted on by an infiltration device so that the electrodes in the battery cells are infiltrated with the electrolyte.

[0003] During use of the wetting equipment in the related art, the electrode wetting efficiency is low, which affects the wetting effect of the battery cell. Utility Model Content

[0004] In view of the above problems, the present application provides a wetting device and a battery production line, which can solve the problem that during the use of existing wetting equipment, the electrode wetting efficiency is low, which affects the wetting effect of the battery cell.

[0005] In order to solve the above technical problems, in the first aspect, the present application proposes an infiltration device, comprising:

[0006] tray;

[0007] An electromagnetic coil, wherein the electromagnetic coil is arranged on the bottom plate of the tray;

[0008] An elastic paddle is arranged on the inner bottom surface of the first shell on the battery core. When the battery core is placed on the bottom plate, the electromagnetic coil can drive the elastic paddle to move along the height direction of the battery core after charging and discharging.

[0009] In the technical solution of the embodiment of the present application, when the electromagnetic coil is energized to generate magnetism, the electromagnetic coil adsorbs the elastic paddle and bends it toward one side of the bottom surface of the first shell. When the electromagnetic coil is de-energized, the magnetic force acting on the elastic paddle disappears and the elastic paddle rebounds. At this time, the elastic paddle gives an upward force to the electrolyte inside the battery cell, thereby driving the electrolyte to infiltrate upward, so that the electrolyte overcomes gravity and quickly infiltrates with the electrode, thereby accelerating the infiltration of the battery cell and improving the infiltration effect.

[0010] In some embodiments, the elastic pick includes a magnetic sheet, and the magnetic sheet is disposed on the bottom surface of the first shell.

[0011] In some embodiments, the elastic pick further includes an anti-corrosion layer, and the anti-corrosion layer is disposed on the surface of the magnetic sheet, so that the magnetic sheet can be prevented from being corroded.

[0012] In some embodiments, the infiltration device further comprises at least two fixing blocks;

[0013] The fixing block is arranged on the bottom surface of the first shell, the elastic paddle is arranged between the two fixing blocks, and there is a gap between the elastic paddle and the bottom surface of the first shell, so that the installation of the elastic paddle is convenient.

[0014] In some embodiments, an adhesive layer is provided on the fixing block, and the elastic pick is bonded to the fixing block via the adhesive layer, so that it is convenient to fix the elastic pick to the fixing block.

[0015] In some embodiments, the surface of the fixing block is provided with an anti-corrosion layer, so that the fixing block can be prevented from being corroded.

[0016] In some embodiments, the electromagnetic coil is disposed inside the base plate, and the lead heads on the electromagnetic coil are located outside the base plate.

[0017] In some embodiments, the immersion device further comprises a power supply, and the power supply is electrically connected to the lead head, so as to facilitate power supply to the electromagnetic coil.

[0018] In some embodiments, the immersion device further comprises a resistor, and the resistor is arranged between the power supply and the lead head. In this way, it is convenient to adjust the magnitude of the magnetic force on the electromagnetic coil.

[0019] In a second aspect, the present application proposes a battery production line, comprising an infiltration device as described in any one of the embodiments of the present application.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the embodiments below. The accompanying drawings are only for the purpose of illustrating the embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of an electric device provided in some embodiments of the present application;

[0023] Figure 2 A schematic diagram of the structure of a battery provided in some embodiments of the present application;

[0024] Figure 3 A schematic diagram of the structure of a battery cell provided in some embodiments of the present application;

[0025] Figure 4 A schematic diagram of the structure of an infiltration device provided in some embodiments of the present application;

[0026] Figure 5 A cross-sectional view of an infiltration device provided in some embodiments of the present application;

[0027] Figure 6 for Figure 4 A top view of

[0028] Figure 7 A schematic diagram of a connection structure between a battery cell and an elastic paddle provided in some embodiments of the present application;

[0029] Figure 8 for Figure 7 An enlarged schematic diagram of

[0030] Fig. 9 A schematic diagram of the infiltration device provided in some embodiments of the present application when in operation.

[0031] The reference numerals in the specific implementation manner are as follows:

[0032] 1000. Vehicles;

[0033] 100, battery; 200, controller; 300, motor;

[0034] 110, box body; 111, first part; 112, second part; 120, battery cell; 121, second shell; 122, end cover; 123, electrode assembly;

[0035] 10. Battery cell; 101. First shell; 102. Electrolyte; 11. Tray; 113. Bottom plate; 12. Electromagnetic coil; 13. Elastic pick; 14. Fixing block. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0042] In the description of the embodiments of the present application, the technical 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application 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 embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0045] In the battery production process, the adequacy of the battery electrolyte wetting on the pole piece is closely related to the efficiency of the cell wetting, which exists in the process of the cell standing still after the cell is injected. The adequacy of the pole piece wetting directly determines the efficiency of the cell wetting.

[0046] In the related art, ultrasonic waves are used to accelerate the wetting. However, as the volume of power batteries increases, and the outer shells of power batteries are mostly made of steel shells, this will affect the penetration effect of ultrasonic waves, resulting in insufficient wetting of the electrode and low wetting efficiency, which affects the electrical performance and production efficiency of the battery cell.

[0047] Based on the above considerations, in order to solve the problem that the electrode wetting efficiency is low during the ultrasonic wetting process, which affects the wetting effect of the battery cell, a wetting device is designed. The wetting device includes a tray, an electromagnetic coil and an elastic paddle, wherein the electromagnetic coil is arranged on the bottom plate of the tray, and the elastic paddle is arranged on the bottom surface inside the first shell on the battery cell. When the battery cell is placed on the bottom plate, the electromagnetic coil can drive the elastic paddle to move along the height direction of the battery cell after charging and discharging.

[0048] During use, when the electromagnetic coil is energized to generate magnetism, the electromagnetic coil adsorbs the elastic paddle to bend toward one side of the bottom surface of the first shell; when the electromagnetic coil is de-energized, the magnetic force acting on the elastic paddle disappears and the elastic paddle rebounds. At this time, the elastic paddle gives an upward force to the electrolyte inside the battery cell, thereby driving the electrolyte to infiltrate upward, so that the electrolyte overcomes gravity and quickly infiltrates the electrode, thereby accelerating the infiltration of the battery cell and improving the infiltration effect.

[0049] The infiltration device disclosed in the embodiment of the present application can be used in, but is not limited to, the production of batteries. It should be noted that the battery in the present application refers to a single physical module including one or more battery cells to provide a higher voltage and capacity. For example, the battery mentioned in the present application may include a battery pack, etc. The battery can be used as a power source or power system for an electrical device, which is conducive to improving the overall performance of the battery and facilitating the promotion of the battery.

[0050] The above-mentioned electrical devices may be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0051] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0052] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0053] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0054] Please refer to Figure 2 , Figure 2An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box body 110 and a battery cell 120, and the battery cell 120 is contained in the box body 110. Among them, the box body 110 is used to provide a storage space for the battery cell 120, and the box body 110 can adopt a variety of structures. In some embodiments, the box body 110 may include a first part 111 and a second part 112, and the first part 111 and the second part 112 cover each other, and the first part 111 and the second part 112 jointly define a storage space for accommodating the battery cell 120. The second part 112 may be a hollow structure with one end open, and the first part 111 may be a plate-like structure, and the first part 111 covers the open side of the second part 112, so that the first part 111 and the second part 112 jointly define a storage space; the first part 111 and the second part 112 may also be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the box body 110 formed by the first part 111 and the second part 112 can be in various shapes, such as a cylinder, a cuboid, etc.

[0055] In the battery 100, there may be multiple battery cells 120, and the multiple battery cells 120 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 120 are both connected in series and in parallel. The multiple battery cells 120 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 120 is accommodated in the box 110; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 120 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 110. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 120.

[0056] Each battery cell 120 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 120 may be cylindrical, flat, rectangular, or in other shapes.

[0057] like Figure 3 As shown, the battery cell 120 may include a housing, an electrode assembly 123 and electrode terminals. The housing includes a second housing 121 and an end cap 122. The second housing 121 has an opening, and the end cap 122 closes the opening to isolate the internal environment of the battery cell 120 from the external environment.

[0058] The second shell 121 is a component used to cooperate with the end cap 122 to form an internal environment of the battery cell 120, wherein the formed internal environment can be used to accommodate the electrode assembly 123, the electrolyte and other components. The second shell 121 and the end cap 122 can be independent components. The second shell 121 can be of various shapes and sizes. Specifically, the shape of the second shell 121 can be determined according to the specific shape and size of the electrode assembly 123. The material of the second shell 121 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc.

[0059] The end cap 122 refers to a component that covers the opening of the second shell 121 to isolate the internal environment of the battery cell 120 from the external environment. Without limitation, the shape of the end cap 122 can be adapted to the shape of the second shell 121 to match the second shell 121. Optionally, the end cap 122 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 122 is not easily deformed when squeezed and collided, so that the battery cell 120 can have a higher structural strength and reliability can also be improved. Functional components such as electrode terminals can be provided on the end cap 122. The electrode terminal can be used to electrically connect to the electrode assembly 123 for outputting or inputting electrical energy of the battery cell 120. The material of the end cap 122 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose any special restrictions on this. In some embodiments, an insulating structure may be provided inside the end cap 122, and the insulating structure may be used to isolate the electrical connection components in the second housing 121 from the end cap 122 to reduce the risk of short circuit. For example, the insulating structure may be plastic, rubber, or the like.

[0060] The electrode assembly 123 is a component in the battery cell 120 where an electrochemical reaction occurs. One or more electrode assemblies 123 may be included in the second shell 121. The electrode assembly 123 is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet, and the separator is used to separate the positive electrode sheet and the negative electrode sheet to avoid short circuit between the positive electrode sheet and the negative electrode sheet. The part of the positive electrode sheet and the negative electrode sheet with active material constitutes the main body of the electrode assembly 123, and the part of the positive electrode sheet and the negative electrode sheet without active material each constitutes a pole ear. The positive pole ear and the negative pole ear may be located at one end of the main body or at both ends of the main body respectively. During the charge and discharge process of the battery 100, the positive active material and the negative active material react with the electrolyte, and the pole ear connects the electrode terminal to form a current loop. In addition, the electrode assembly 123 may be a winding structure or a laminated structure.

[0061] According to some embodiments of the present application, Figure 4 is a schematic diagram of the structure of the infiltration device in this application, Figure 5 is a cross-sectional view of the infiltration device in this application, Figure 6 for Figure 4 A top view of Figure 7 This is a schematic diagram of the connection structure between the battery cell and the elastic paddle in this application. Figure 8 for Figure 7 An enlarged schematic diagram of Figures 4 to 8 As shown, the present application provides an immersion device, which includes a tray 11, an electromagnetic coil 12 and an elastic paddle 13, wherein the electromagnetic coil 12 is arranged on the bottom plate 113 of the tray 11, and the elastic paddle 13 is arranged on the inner bottom surface of the first shell 101 on the battery cell 10. When the battery cell 10 is placed on the bottom plate 113, the electromagnetic coil 12 can drive the elastic paddle 13 to move along the height direction of the battery cell 10 after charging and discharging.

[0062] The tray 11 in this embodiment can be made of resin, plastic, etc. The specific material can be determined according to actual conditions, and this embodiment of the specification does not limit this.

[0063] In this embodiment, the elastic paddle 13 may refer to a material that can be deformed under the action of an external force and return to its original shape after the external force is removed. The elastic paddle 13 can bend in the height direction of the battery core 10. The elastic paddle 13 is made of metal, such as an elastic sheet, a spiral spring, etc. The specific material can be determined based on actual conditions, and this specification does not limit this.

[0064] In the technical solution of the embodiment of the present application, when the electromagnetic coil 12 is energized to generate magnetism, Fig. 9 As shown, the electromagnetic coil 12 absorbs the elastic pick 13 and bends it toward one side of the bottom surface of the first shell 101. When the electromagnetic coil 12 is powered off, the magnetic force acting on the elastic pick 13 disappears. At this time, the elastic pick 13 rebounds upward, and the elastic pick 13 gives an upward force F to the electrolyte 102 in the battery cell 10, thereby driving the electrolyte to infiltrate upward, so that the electrolyte overcomes gravity and quickly infiltrates with the electrode, thereby accelerating the infiltration of the battery cell and improving the infiltration effect.

[0065] According to some embodiments of the present application, the elastic pick 13 includes a magnetic sheet, which is disposed on the bottom surface inside the first shell 101 .

[0066] The magnetic sheet in this embodiment can be a ferromagnetic sheet, a steel magnetic sheet, etc. The specific one can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0067] Since the elastic pick 13 is a magnetic sheet, when the electromagnetic coil 12 is energized to generate magnetism, the magnetic sheet can be quickly attracted and bent toward one side of the bottom surface of the first shell 101 .

[0068] According to some embodiments of the present application, the elastic pick 13 further includes an anti-corrosion layer, and the anti-corrosion layer is disposed on the surface of the magnetic sheet.

[0069] The anti-corrosion layer in this embodiment may be coated with styrene-butadiene rubber, fluorinated rubber, etc. The specific coating may be determined according to actual conditions, and this specification does not limit this.

[0070] Since an anti-corrosion layer is provided on the surface of the magnetic sheet, the magnetic sheet can be prevented from being corroded by the electrolyte.

[0071] According to some embodiments of the present application, Figure 5 The illustrated immersion device further includes at least two fixing blocks 14 , which are disposed on the bottom surface of the first shell 101 . The elastic paddle 13 is disposed between the two fixing blocks 14 , and there is a gap between the elastic paddle 13 and the bottom surface of the first shell 101 .

[0072] In this embodiment, a fixing block 14 is provided on the bottom surface of the first housing 101 to facilitate the fixing of the elastic paddle 13. Since there is a gap between the elastic paddle 13 and the bottom surface of the first housing 101, the elastic paddle 13 can be bent relative to the bottom surface of the first housing 101.

[0073] According to some embodiments of the present application, an adhesive layer is provided on the fixing block 14 , and the elastic paddle 13 is bonded to the fixing block 14 via the adhesive layer.

[0074] The adhesive layer in this embodiment can be double-sided tape, Velcro, etc. The specific adhesive layer can be determined according to actual conditions, and this specification does not limit this.

[0075] In this embodiment, an adhesive layer is provided on the fixing block 14 , so that the elastic paddle 13 can be quickly connected to the fixing block 14 .

[0076] According to some embodiments of the present application, an anti-corrosion layer is provided on the surface of the fixing block 14 .

[0077] The anti-corrosion layer in this embodiment may be coated with styrene-butadiene rubber, fluorinated rubber, etc. The specific coating may be determined according to actual conditions, and this specification does not limit this.

[0078] Since an anti-corrosion layer is provided on the surface of the fixing block 14 , the fixing block 14 can be prevented from being corroded by the electrolyte.

[0079] According to some embodiments of the present application, Figure 5 As shown, the electromagnetic coil 12 is disposed inside the bottom plate 113 , and the lead ends on the electromagnetic coil 12 are located outside the bottom plate 113 .

[0080] In this embodiment, the electromagnetic coil 12 is disposed inside the bottom plate 113 , which can prevent the electromagnetic coil 12 from being damaged by external collision.

[0081] According to some embodiments of the present application, the immersion device further includes a power supply, which is electrically connected to the lead head.

[0082] The power supply in this embodiment can be a storage battery, a dry cell, a generator, etc. The specific power supply can be determined according to actual conditions, and this specification does not limit this.

[0083] In this embodiment, a power supply is provided so that the electromagnetic coil 12 can be easily powered.

[0084] According to some embodiments of the present application, the immersion device further includes a resistor, wherein the resistor is disposed between the power supply and the lead head.

[0085] In this embodiment, by adjusting the resistance value of the resistor, the corresponding current can be adjusted, thereby adjusting the magnetic force on the electromagnetic coil 12, and further adjusting the curvature of the elastic pick 13. For example, when the magnetic force generated by the electromagnetic coil 12 is large, the curvature of the elastic pick 13 is large, and when the magnetic force generated by the electromagnetic coil 12 is small, the curvature of the elastic pick 13 is small. In this way, the force F acting on the electrolyte 102 in the battery cell 10 can be adjusted.

[0086] Of course, it is understandable that the present embodiment can also adjust the magnitude of the corresponding current by adjusting the output voltage of the power supply component, and the specific amount can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0087] The present application also provides a battery production line, comprising an infiltration device as described in any one of the embodiments of the present application.

[0088] The specific structure of the impregnation device in this embodiment refers to the above embodiment. Since all the technical solutions of all the above embodiments are adopted in the battery production line, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An infiltration device, characterized in that: include: tray; An electromagnetic coil, wherein the electromagnetic coil is arranged on the bottom plate of the tray; An elastic paddle is arranged on the inner bottom surface of the first shell on the battery core. When the battery core is placed on the bottom plate, the electromagnetic coil can drive the elastic paddle to move along the height direction of the battery core after charging and discharging.

2. The infiltration device according to claim 1, characterized in that: The elastic pick includes a magnetic sheet, and the magnetic sheet is arranged on the bottom surface inside the first shell.

3. The infiltration device according to claim 2, characterized in that: The elastic pick also includes an anti-corrosion layer, and the anti-corrosion layer is arranged on the surface of the magnetic sheet.

4. The infiltration device according to any one of claims 1 to 3, characterized in that: The infiltration device also includes at least two fixing blocks; The fixing block is arranged on the bottom surface of the first shell, the elastic paddle is arranged between the two fixing blocks, and there is a gap between the elastic paddle and the bottom surface of the first shell.

5. The infiltration device according to claim 4, characterized in that: The fixing block is provided with an adhesive layer, and the elastic paddle is bonded to the fixing block through the adhesive layer.

6. The infiltration device according to claim 4, characterized in that: The surface of the fixing block is provided with an anti-corrosion layer.

7. The infiltration device according to claim 1, characterized in that: The electromagnetic coil is arranged inside the bottom plate, and the lead head on the electromagnetic coil is located outside the bottom plate.

8. The infiltration device according to claim 7, characterized in that: The immersion device further comprises a power supply, and the power supply is electrically connected to the lead head.

9. The infiltration device according to claim 8, characterized in that: The immersion device further includes a resistor, and the resistor is arranged between the power supply and the lead head.

10. A battery production line, characterized in that: Comprising an infiltration device as claimed in any one of claims 1 to 9.

Images