Electrode slurry treatment device and battery production equipment

Abstract

The invention provides an electrode slurry treatment device and battery production equipment. The electrode slurry treatment device comprises a container and a power source, and the container is provided with a containing cavity used for containing electrode slurry. The power supply comprises a positive electrode part and a negative electrode part which are both connected to the container, and the power supply is used for applying an electric field to the electrode slurry contained in the containing cavity. Wherein the container comprises a tank body, a stirring paddle, a first conductive part and a second conductive part, the tank body comprises a containing cavity, the stirring paddle is arranged in the containing cavity and is configured to rotate relative to the tank body, and the stirring paddle is used for stirring electrode slurry. The first conductive part and the second conductive part are both arranged in the accommodating cavity, and the first conductive part, the second conductive part and the stirring paddle are arranged at intervals. One of the positive electrode portion and the negative electrode portion is connected to the first conductive member, and the other of the positive electrode portion and the negative electrode portion is connected to the second conductive member. According to the invention, the quality of the electrode slurry can be effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to an electrode paste processing device and a battery production device. Background Art

[0002] With the development of new energy technologies, batteries are increasingly widely used, such as in mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc.

[0003] As an important material in the battery manufacturing process, the quality of the electrode paste will directly affect the performance and reliability of the battery. Therefore, how to effectively improve the quality of the electrode paste is an ongoing research direction in battery technology. Summary of the Invention

[0004] In view of the above problems, this application provides an electrode paste processing device and a battery production device, which can effectively improve the quality of the electrode paste.

[0005] In a first aspect, an embodiment of this application provides an electrode paste processing device. The electrode paste processing device includes a container and a power source. The container has a receiving cavity for receiving the electrode paste. The power source includes a positive electrode part and a negative electrode part, both of which are connected to the container, and the power source is used to apply an electric field to the electrode paste received in the receiving cavity. Among them, the container includes a tank body, a stirring paddle, a first conductive member, and a second conductive member. The tank body includes a receiving cavity. The stirring paddle is arranged in the receiving cavity and is configured to be able to rotate relative to the tank body. The stirring paddle is used to stir the electrode paste. Both the first conductive member and the second conductive member are arranged in the receiving cavity, and the first conductive member, the second conductive member, and the stirring paddle are spaced apart from each other. One of the positive electrode part and the negative electrode part is connected to the first conductive member, and the other of the positive electrode part and the negative electrode part is connected to the second conductive member.

[0006] The above technical solution can electrolyze and ionize impurities such as metal particles in the electrode paste by applying an electric field to the electrode paste located in the container, so that impurities such as metal particles in the electrode paste can be effectively removed, and the quality of the electrode paste can be effectively improved.

[0007] By stirring the electrode paste with the stirring paddle, the sedimentation and accumulation of solid particles in the electrode paste can be effectively reduced, and the uniformity of substances in the electrode paste can be improved. The fluid shear force and macroscopic circulation generated by the stirring movement of the stirring paddle can promote the uniform suspension of impurities such as metal particles in the electrode paste, further enhancing the rate and efficiency of the ionization of impurities such as metal particles, and thus significantly improving the removal effect of impurities such as metal particles in the electrode paste.

[0008] By introducing the first conductive member and the second conductive member to respectively undertake the electrode functions, the positions, shapes and spacing designs of the first conductive member and the second conductive member can be adjusted according to different requirements to control the electric field intensity distribution, so as to efficiently and specifically remove metal particles with different particle sizes and different components, thereby further improving the applicability and flexibility of the electrode paste processing device.

[0009] In some embodiments of the first aspect, one of the positive electrode part and the negative electrode part is also connected to the tank body.

[0010] By making the tank body undertake the electrode function, the reuse design of the mechanical structure function and the electrode function is realized, and it helps to further improve the balance of applying an electric field to the electrode paste accommodated in the accommodation cavity.

[0011] In some embodiments of the first aspect, one of the positive electrode part and the negative electrode part is also connected to the stirring paddle.

[0012] By making the stirring paddle undertake the electrode function, the reuse design of the mechanical structure function and the electrode function is realized, and it helps to further improve the balance of applying an electric field to the electrode paste accommodated in the accommodation cavity.

[0013] In some embodiments of the first aspect, the stirring paddle includes a first main body part and a first conductive layer. The first conductive layer is arranged on the outer surface of the first main body part, and the conductivity of the first conductive layer is greater than that of the first main body part. One of the positive electrode part and the negative electrode part is connected to the first conductive layer.

[0014] Through the layered design of the first main body part and the first conductive layer, it is possible to take into account improving the mechanical properties and conductive properties of the stirring paddle. It not only helps to improve the overall functional integration of the stirring paddle, but also reduces the design limitations brought by the compromise of material properties, thereby further optimizing the working efficiency and reliability of the electrode paste processing device.

[0015] In some embodiments of the first aspect, the container further includes a dispersion disk. The dispersion disk is arranged in the accommodation cavity and is spaced apart from the stirring paddle. The dispersion disk is configured to be able to rotate relative to the tank body, and the dispersion disk is used for stirring the electrode paste.

[0016] The dispersion disk and the stirring paddle can cooperate with each other to form a multi-level and multi-angle stirring flow field, thereby further improving the stirring uniformity of the electrode paste. The rotation of the dispersion disk can generate local high shear force and strong turbulence, effectively break up the particle aggregates in the electrode paste, and promote the suspension and uniform distribution of metal particle impurities, thereby providing a better environment for the removal of metal particle impurities.

[0017] In some embodiments of the first aspect, one of the positive electrode part and the negative electrode part is also connected to the dispersion disk.

[0018] By enabling the dispersion disk to undertake the electrode function, a multiplexed design of the mechanical structure function and the electrode function of the dispersion disk is achieved. Moreover, it helps to further improve the uniformity of the electric field applied to the electrode paste accommodated in the accommodation cavity.

[0019] In some embodiments of the first aspect, the dispersion disk includes a second main body portion and a second conductive layer. The second conductive layer is disposed on the outer surface of the second main body portion, and the conductivity of the second conductive layer is greater than that of the second main body portion. One of the positive electrode portion and the negative electrode portion is connected to the second conductive layer.

[0020] Through the layered design of the second main body portion and the second conductive layer, it is possible to take into account improving the mechanical properties and the conductive properties of the dispersion disk. This not only helps to enhance the overall functional integration of the dispersion disk, but also reduces the design limitations caused by the compromise of material properties, thereby further optimizing the working efficiency and reliability of the electrode paste processing device.

[0021] In some embodiments of the first aspect, the positive electrode portion is connected to a first conductive member. The number of the first conductive members is multiple, and the multiple first conductive members are spaced apart along the outer circumference of the stirring paddle.

[0022] By spacing the multiple first conductive members along the outer circumference of the stirring paddle, the multiple first conductive members can increase the probability of contact with impurities such as metal particles in the electrode paste. Moreover, during the rotation of the stirring paddle, the metal particles and other impurities in the electrode paste can quickly contact the surface of the first conductive member, which helps to improve the removal efficiency of the metal particles and other impurities.

[0023] In some embodiments of the first aspect, the positive electrode portion is connected to a first conductive member, the negative electrode portion is connected to a second conductive member, and the number of the first conductive members is greater than the number of the second conductive members.

[0024] By using the first conductive member as the positive electrode of the electric field and increasing the number of the first conductive members, the probability of contact between metal particles and other impurities in the electrode paste and the positive electrode of the electric field can be increased, which helps to improve the removal efficiency of the metal particles and other impurities.

[0025] In some embodiments of the first aspect, the tank body includes a first tank portion and a second tank portion. The first tank portion includes at least part of the accommodation cavity. The first tank portion and the second tank portion are arranged along a first direction, and the second tank portion is configured to be movable relative to the first tank portion along the first direction. The stirring paddle is rotatably connected to the second tank portion.

[0026] By setting the tank body to include a first tank part and a second tank part, and the second tank part is designed to be movable, the container can have higher operation flexibility, greatly improving convenience and efficiency during the processes of electrode paste loading, internal maintenance, cleaning, etc., reducing manual operation intensity and downtime. The stirring paddle is rotatably connected to the second tank part and can be conveniently exposed or retracted as the second tank part moves, greatly facilitating the maintenance, disassembly, and cleaning of the stirring paddle, and enhancing the overall maintainability of the electrode paste processing device.

[0027] In some embodiments of the first aspect, the tank body has a first wall in a direction parallel to the rotation axis of the stirring paddle, and a paste outlet is provided on the first wall, and the paste outlet is located in the middle area of the first wall.

[0028] It can enable the electrode paste to be under the dual action of gravity and stirring flow during the discharging process, forming a stable, continuous, and uniform flow, significantly improving the discharging efficiency of the electrode paste and reducing residues.

[0029] In some embodiments of the first aspect, the voltage between the positive electrode part and the negative electrode part is 3.5V - 36V; and / or, the current between the positive electrode part and the negative electrode part is 1mA - 10mA.

[0030] While ensuring the removal effect of impurities such as metal particles in the electrode paste to a certain extent, it can reduce the risk of operators being injured when accidentally touching the electrode, improving the safety of the electrode paste processing device.

[0031] In some embodiments of the first aspect, the voltage between the positive electrode part and the negative electrode part is a pulsed voltage; and / or, the current between the positive electrode part and the negative electrode part is a pulsed current.

[0032] Through the periodically changing electric field environment, not only can the ionization efficiency of metal impurities be effectively improved, but also by flexibly adjusting the pulse frequency or amplitude, a processing scheme can be customized according to different electrode paste characteristics, enhancing the versatility and process adaptability of the electrode paste processing device. In addition, the application methods of pulsed voltage and pulsed current can effectively reduce energy consumption, reduce the problem of heat accumulation, and improve the energy efficiency ratio.

[0033] In a second aspect, the present application provides a battery production device, which includes the electrode paste processing device provided in any embodiment of the first aspect.

[0034] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. Description of the Drawings

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present application. Also, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings: Figure 1 FIG. 3 is an exploded schematic structural view of an electrode paste processing device provided by some embodiments of the present application; Figure 2 FIG. 6 is an exploded schematic structural view of another electrode paste processing device provided by some embodiments of the present application; Figure 3 is Figure 2 a top view structural view of the container shown; Figure 4 FIG. 14 is an exploded schematic structural view of yet another electrode paste processing device provided by some embodiments of the present application; Figure 5 is Figure 4 a top view structural view of the container shown; Figure 6 FIG. 22 is an exploded schematic structural view of still another electrode paste processing device provided by some embodiments of the present application; Figure 7 is Figure 6 a top view structural view of the container shown; Figure 8 FIG. 30 is an exploded schematic structural view of still another electrode paste processing device provided by some embodiments of the present application; Figure 9 is Figure 8 a top view structural view of the container shown; Figure 10 FIG. 38 is an exploded schematic structural view of a container of an electrode paste processing device provided by some embodiments of the present application; Figure 11 is Figure 10 a top view structural view of the first tank portion shown.

[0036] The reference numerals in the specific embodiments are as follows: 10. Container; 11. Accommodation cavity; 12. Tank body; 12a. First tank portion; 12b. Second tank portion; 121. First wall; 122. Paste outlet; 13. Stirring paddle; 14. Dispersion plate; 15. First conductive member; 16. Second conductive member; 20. Power supply; 21. Positive electrode portion; 22. Negative electrode portion; X. First direction. Specific embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0039] Referring to "embodiments" in this application means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appearing at various positions in the description does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0040] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", and "attached" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0042] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components shown in the drawings in the embodiments of this application, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0043] In this application, "a plurality of" means two or more (including two).

[0044] In this application, the term "parallel" not only includes the case of absolute parallelism, but also includes the case of approximately parallelism as conventionally recognized in engineering; at the same time, "perpendicular" not only includes the case of absolute perpendicularity, but also includes the case of approximately perpendicularity as conventionally recognized in engineering.

[0045] In this application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell, a magnesium-ion battery cell, etc., and the embodiments of this application do not limit this. The battery cell can be in the shape of a cylinder, a flat body, a cuboid or other shapes, etc., and the embodiments of this application do not limit this either.

[0046] With the development of new energy technologies, batteries are increasingly widely used, such as in mobile phones, laptop computers, battery-powered vehicles, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and power tools, etc.

[0047] As an important material in the battery manufacturing process, the quality of the electrode paste will directly affect the electrical performance and reliability of the battery. Therefore, how to effectively improve the quality of the electrode paste is a continuous research direction in battery technology.

[0048] In the production process of the electrode paste, equipment made of stainless steel is usually used for processing. During the raw material production and transportation process, although there are sealing measures, some metal particles and other impurities in the equipment will inevitably fall into the electrode paste, affecting the paste quality.

[0049] These metal particles and other impurities may cause short circuits between the positive and negative electrodes of the battery and poor self-discharge performance of the battery, etc., thereby affecting the electrical performance and reliability of the produced battery. Therefore, in order to make the prepared battery have better electrical performance and reliability, it is necessary to remove metal particles and other impurities in the electrode paste during the battery manufacturing process.

[0050] In the related art, usually the magnetic attraction method is used to remove metal particles and other impurities in the electrode paste. For example, a magnet is set in a container containing the electrode paste to adsorb metal particles and other impurities in the electrode paste. However, this method is difficult to remove weakly magnetic or micron-sized magnetic metal particles in the electrode paste, and non-magnetic metal particles cannot be removed, and the effect is poor. Moreover, after the magnet adsorbs the metal particles, it is also necessary to regularly clean the metal particles on the magnet, which is time-consuming and laborious and affects the production efficiency of the battery.

[0051] Based on the above considerations, the present application designs an electrode paste processing device. The electrode paste processing device includes a container and a power supply. The container has a receiving cavity for receiving the electrode paste. The power supply includes a positive electrode part and a negative electrode part, both of which are connected to the container. The power supply is used to apply an electric field to the electrode paste received in the receiving cavity.

[0052] By setting the power supply to apply an electric field to the electrode paste located in the container, the impurities such as metal particles in the electrode paste can be electrolytically ionized, so that the impurities such as metal particles in the electrode paste can be effectively removed, and the quality of the electrode paste can be effectively improved.

[0053] Figure 1 It is an exploded structural schematic diagram of an electrode paste processing device provided by some embodiments of the present application.

[0054] As Figure 1 shown, the embodiments of the present application provide an electrode paste processing device. The electrode paste processing device includes a container 10 and a power supply 20. The container 10 has a receiving cavity 11 for receiving the electrode paste. The power supply 20 includes a positive electrode part 21 and a negative electrode part 22. Both the positive electrode part 21 and the negative electrode part 22 are connected to the container 10. The power supply 20 is used to apply an electric field to the electrode paste received in the receiving cavity 11.

[0055] Exemplarily, the electrode paste processing device can be applied to, but is not limited to, scenarios such as an electrode paste stirring tank, an electrode paste transfer tank, and an electrode paste buffer tank.

[0056] The container 10 is mainly used to receive the electrode paste. The container 10 can be made of a material with excellent corrosion resistance, such as a polymer or a ceramic material.

[0057] The power supply 20 can be directly connected to the container 10 or indirectly connected to the container 10 through other components. Exemplarily, the power supply 20 applies a voltage to the container 10 to cause a current to flow in the electrode paste, thereby generating an electric field in the receiving cavity 11, which can electrolytically ionize the tiny metal particles and other impurities in the electrode paste, and the large metal particles are electrolyzed into small metal particles, and the small metal particles are further electrolytically ionized.

[0058] As an example, a positive electrode wire can be led out from the positive electrode part 21 of the power supply 20 and extended into the electrode paste in the receiving cavity 11, and a negative electrode wire can be led out from the negative electrode part 22 of the power supply 20 and extended into the electrode paste in the receiving cavity 11 to apply an electric field to the electrode paste received in the receiving cavity 11.

[0059] Of course, it can also be achieved by other means to apply an electric field to the electrode paste received in the receiving cavity 11, which will be introduced in detail later.

[0060] Through the above technical solution, by applying an electric field to the electrode paste located in the container 10 with the power supply 20, metal particles and other impurities in the electrode paste can be electrolytically ionized, so that metal particles and other impurities in the electrode paste can be effectively removed, and the quality of the electrode paste can be effectively improved.

[0061] The power supply 20 can be a DC power supply or an AC power supply, and appropriate voltage and current parameters can be selected according to specific processing requirements.

[0062] In some embodiments, the power supply 20 is a DC power supply, and the electrolytic ionization efficiency of the DC current for metal particles and other impurities is relatively higher.

[0063] In some embodiments, the electrode paste processing device may further include a voltage controller. The voltage controller is connected to the power supply 20 and is used to adjust the output voltage of the power supply 20 so that the electrode paste processing device can flexibly adjust the applied electric field strength according to different types of electrode paste, impurity components, and processing stages.

[0064] Figure 2 The following is an exploded structural schematic diagram of another electrode paste processing device provided by some embodiments of the present application. Figure 3 is Figure 2 a top view structural schematic diagram of the shown container.

[0065] Continuing to refer to Figures 2 to 3 , in some embodiments, the container 10 includes a tank body 12 and a stirring paddle 13. The tank body 12 includes a receiving cavity 11. The stirring paddle 13 is arranged in the receiving cavity 11 and is configured to be able to rotate relative to the tank body 12. The stirring paddle 13 is used to stir the electrode paste.

[0066] Exemplarily, the shape of the tank body 12 can be but is not limited to cylindrical or square-columnar, etc., and the stirring paddle 13 can be but is not limited to a blade-type paddle, an anchor-type paddle, a helical-ribbon-type paddle, or a spiral-type paddle, etc., and can be selected according to the actual application environment.

[0067] Both the tank body 12 and the stirring paddle 13 can be but are not limited to being made of materials such as ceramics, polyethylene, polypropylene, or polyvinyl chloride.

[0068] The tank body 12 and the stirring paddle 13 can be made of the same material or different materials. As an example, making the tank body 12 and the stirring paddle 13 of the same material helps to simplify the preparation process flow and reduce costs.

[0069] On the one hand, by stirring the electrode paste with the stirring paddle 13, the sedimentation and accumulation of solid particles in the electrode paste can be effectively reduced, and the uniformity of substances in the electrode paste can be improved; on the other hand, the fluid shear force and macroscopic circulation generated by the stirring motion of the stirring paddle 13 can promote the uniform suspension of impurities such as metal particles in the electrode paste, further enhancing the ionization rate and efficiency of impurities such as metal particles, thereby significantly improving the removal effect of impurities such as metal particles in the electrode paste.

[0070] In some embodiments, the shape of the tank body 12 is set to be cylindrical, which is beneficial to the uniform distribution of the electric field in the accommodating cavity 11, and at the same time facilitates the flow and stirring of the paste, improving the removal effect of impurities such as metal particles in the electrode paste.

[0071] In some embodiments, the stirring paddle 13 is a spiral paddle body, which can further improve the stirring uniformity of the electrode paste to a certain extent.

[0072] In some embodiments, the inner surface of the tank body 12 can be provided with an anti-sticking coating, such as a polytetrafluoroethylene coating, to reduce the possibility of the electrode paste adhering to the inner surface of the tank body 12, facilitating subsequent cleaning and maintenance.

[0073] In some embodiments, the stirring paddle 13 is rotatably connected to the tank body 12, and the stirring paddle 13 is insulated from the tank body 12.

[0074] In some embodiments, the stirring paddle 13 and the tank body 12 are independently arranged. The electrode paste processing device further includes a first driving mechanism. The stirring paddle 13 is connected to the first driving mechanism. The first driving mechanism is used to drive the stirring paddle 13 to rotate. The stirring paddle 13 extends into the accommodating cavity 11, and the stirring paddle 13 is spaced from the tank body 12.

[0075] In some embodiments, one of the positive electrode part 21 and the negative electrode part 22 is also connected to the tank body 12.

[0076] By making the tank body 12 undertake the electrode function, the reuse design of the mechanical structure function and the electrode function is realized, and it helps to further improve the balance of the electric field applied to the electrode paste accommodated in the accommodating cavity.

[0077] In some embodiments, one of the positive electrode part 21 and the negative electrode part 22 is also connected to the stirring paddle 13.

[0078] By making the stirring paddle 13 undertake the electrode function, the reuse design of the mechanical structure function and the electrode function is realized, and it helps to further improve the balance of the electric field applied to the electrode paste accommodated in the accommodating cavity.

[0079] One of the positive electrode part 21 and the negative electrode part 22 can be directly connected to the tank body 12, or can be indirectly connected to the tank body 12 through other components. One of the positive electrode part 21 and the negative electrode part 22 can be directly connected to the stirring paddle 13, or can be indirectly connected to the stirring paddle 13 through other components.

[0080] Exemplarily, when the positive electrode part 21 is connected to the tank body 12 and the negative electrode part 22 is connected to the stirring paddle 13, the tank body 12 constitutes the positive electrode of the electric field, and the stirring paddle 13 constitutes the negative electrode of the electric field. When the positive electrode part 21 is connected to the stirring paddle 13 and the negative electrode part 22 is connected to the tank body 12, the stirring paddle 13 constitutes the positive electrode of the electric field, and the tank body 12 constitutes the negative electrode of the electric field.

[0081] In some embodiments, the negative electrode part 22 is connected to the tank body 12, and the positive electrode part 21 is connected to the stirring paddle 13.

[0082] It can be understood that when impurities such as metal particles contact the positive electrode surface of the electric field, they can lose electrons more quickly to generate ionization, and during the rotation of the stirring paddle 13, the probability of the stirring paddle 13 contacting impurities such as metal particles in the electrode slurry is greater. Therefore, using the stirring paddle 13 as the positive electrode of the electric field helps to improve the removal efficiency of impurities such as metal particles.

[0083] In some embodiments, the stirring paddle 13 includes a first main body part and a first conductive layer. The first conductive layer is disposed on the outer surface of the first main body part, and the conductivity of the first conductive layer is greater than that of the first main body part. One of the positive electrode part 21 and the negative electrode part 22 is connected to the first conductive layer.

[0084] The first main body part is the basic support and morphological structure of the stirring paddle 13. Exemplarily, the first main body part can be made of a light and mechanically strong material, such as polyether ether ketone, carbon fiber composite material or aluminum alloy, etc., which helps to reduce the overall weight of the stirring paddle 13, reduce the rotational inertia, and improve the stirring energy efficiency.

[0085] The first conductive layer can be coated, sprayed or adhered to the outer surface of the first main body part. Exemplarily, the first conductive layer can be but is not limited to high-conductivity metal materials such as ruthenium-iridium alloy and iridium-tantalum alloy.

[0086] One of the positive electrode part 21 and the negative electrode part 22 is connected to the tank body 12, and the other of the positive electrode part 21 and the negative electrode part 22 is connected to the first conductive layer.

[0087] Exemplarily, when the positive electrode part 21 is connected to the tank body 12 and the negative electrode part 22 is connected to the first conductive layer, the tank body 12 constitutes the positive electrode of the electric field, and the first conductive layer constitutes the negative electrode of the electric field. When the positive electrode part 21 is connected to the first conductive layer and the negative electrode part 22 is connected to the tank body 12, the first conductive layer constitutes the positive electrode of the electric field, and the tank body 12 constitutes the negative electrode of the electric field.

[0088] In some embodiments, the negative electrode part 22 is connected to the tank body 12, and the positive electrode part 21 is connected to the first conductive layer.

[0089] Through the layered design of the first main body part and the first conductive layer, it is possible to take into account improving the mechanical properties and conductive properties of the stirring paddle 13. It not only helps to improve the overall functional integration of the stirring paddle 13, but also can reduce the design limitations caused by the compromise of material properties, thereby further optimizing the working efficiency and reliability of the electrode paste processing device.

[0090] As an example, the conductivity of the first main body part and the first conductive layer can be tested with reference to the national standard GB / T 4340.10-2009 "Determination of Electrical Conductivity of Metallic Materials Eddy Current Method".

[0091] In some embodiments, the first main body part is insulated.

[0092] Figure 4 It is an exploded structural schematic diagram of another electrode paste processing device provided by some embodiments of the present application. Figure 5 is Figure 4 a top view structural schematic diagram of the shown container.

[0093] Continue to refer to Figures 4 to 5 , in some embodiments, the container 10 further includes a dispersion disk 14. The dispersion disk 14 is arranged in the accommodation cavity 11 and is spaced apart from the stirring paddle 13. The dispersion disk 14 is configured to be able to rotate relative to the tank body 12, and the dispersion disk 14 is used for stirring the electrode paste.

[0094] The dispersion disk 14 can be, but is not limited to, made of materials such as ceramics, polyethylene, polypropylene, or polyvinyl chloride.

[0095] The tank body 12, the stirring paddle 13, and the dispersion disk 14 can be made of the same material or different materials. As an example, making the tank body 12, the stirring paddle 13, and the dispersion disk 14 of the same material helps to simplify the preparation process flow and reduce costs.

[0096] The dispersion disk 14 and the stirring paddle 13 can cooperate to form a multi-level and multi-angle stirring flow field, thereby further improving the stirring uniformity of the electrode paste. The rotation of the dispersion disk 14 can generate local high shear force and strong turbulence, effectively break up the particle aggregates in the electrode paste, and promote the suspension and uniform distribution of metal particle impurities, thereby providing a better environment for the removal of metal particle impurities.

[0097] In some embodiments, an anti-sticking coating, such as a polytetrafluoroethylene coating, can be provided on the outer surface of the dispersion disk 14 to reduce the possibility of the electrode paste adhering to the outer surface of the dispersion disk 14, facilitating subsequent cleaning and maintenance.

[0098] In some embodiments, the dispersion disk 14 can be rotatably connected to the tank body 12, and the dispersion disk 14 is insulated from the tank body 12.

[0099] In some embodiments, the dispersion disk 14 and the tank body 12 can be independently arranged. The electrode paste processing device further includes a second driving mechanism. The dispersion disk 14 is connected to the second driving mechanism. The second driving mechanism is used to drive the dispersion disk 14 to rotate. The dispersion disk 14 extends into the accommodation cavity 11, and the dispersion disk 14 is spaced from the tank body 12.

[0100] In some embodiments, the rotation speed of the dispersion disk 14 and the rotation speed of the stirring paddle 13 can be synchronously set. The synchronous rotation of the dispersion disk 14 and the stirring paddle 13 can enhance the flow field synergy effect and improve the movement stability of the electrode paste in the tank body 12.

[0101] In some embodiments, the rotation speed of the dispersion disk 14 and the rotation speed of the stirring paddle 13 can be set asynchronously or at a differential speed. The asynchronous or differential rotation of the dispersion disk 14 and the stirring paddle 13 can further increase the overall shear force and disturbance intensity applied to the electrode paste to further improve the suspension effect of metal particle impurities in the electrode paste.

[0102] In some embodiments, the number of the dispersion disks 14 is multiple, and the multiple dispersion disks 14 are spaced in the accommodation cavity 11. Herein, multiple means two or more.

[0103] In some embodiments, the number of the stirring paddles 13 is multiple, and the multiple stirring paddles 13 are spaced in the accommodation cavity 11. Herein, multiple means two or more.

[0104] In some embodiments, the number of both the stirring paddles 13 and the dispersion disks 14 is multiple, and the multiple stirring paddles 13 and the multiple dispersion disks 14 are arranged in an array.

[0105] In some embodiments, one of the positive electrode part 21 and the negative electrode part 22 is also connected to the dispersion disk 14.

[0106] By enabling the dispersion disk 14 to assume the electrode function, a multiplex design of the mechanical structure function and the electrode function of the dispersion disk 14 is achieved, and it helps to further improve the uniformity of the electric field applied to the electrode paste accommodated in the accommodation cavity.

[0107] In some embodiments, the negative electrode part 22 is connected to the tank body 12, and the positive electrode part 21 is connected to the dispersion disk 14.

[0108] It can be understood that when impurities such as metal particles come into contact with the positive electrode surface of the electric field, they can lose electrons more quickly to generate ionization, and during the rotation of the dispersion disk 14, the probability of the dispersion disk 14 coming into contact with impurities such as metal particles in the electrode paste is greater. Therefore, using the dispersion disk 14 as the positive electrode of the electric field helps to improve the removal efficiency of impurities such as metal particles.

[0109] In some embodiments, it can be that the negative electrode part 22 is connected to the stirring paddle 13, and the positive electrode part 21 is connected to the dispersion disk 14.

[0110] In some embodiments, it can also be that the negative electrode part 22 is connected to the dispersion disk 14, and the positive electrode part 21 is connected to the tank body 12.

[0111] In some embodiments, it can also be that the negative electrode part 22 is connected to the dispersion disk 14, and the positive electrode part 21 is connected to the stirring paddle 13.

[0112] In some embodiments, the dispersion disk 14 includes a second main body part and a second conductive layer. The second conductive layer is disposed on the outer surface of the second main body part, and the conductivity of the second conductive layer is greater than that of the second main body part. One of the positive electrode part 21 and the negative electrode part 22 is connected to the second conductive layer.

[0113] The second main body part is the basic support and morphological structure of the dispersion disk 14. Exemplarily, the second main body part can be made of a lightweight material with a certain mechanical strength, such as polyether ether ketone, carbon fiber composite material, or aluminum alloy, which helps to reduce the overall weight of the dispersion disk 14, reduce the rotational inertia, and improve the stirring energy efficiency.

[0114] The second conductive layer can be coated, sprayed, or adhered to the outer surface of the second main body part. Exemplarily, the second conductive layer can but is not limited to using highly conductive metal materials such as ruthenium-iridium alloy and iridium-tantalum alloy.

[0115] Through the layered design of the second main body part and the second conductive layer, it is possible to take into account improving the mechanical properties and conductive properties of the dispersion disk 14. It not only helps to improve the overall functional integration of the dispersion disk 14, but also reduces the design limitations caused by the compromise of material properties, thereby further optimizing the working efficiency and reliability of the electrode paste processing device.

[0116] In some embodiments, the negative electrode part 22 is connected to the tank body 12, and the positive electrode part 21 is connected to the second conductive layer.

[0117] As an example, the conductivity of the second main body part and the second conductive layer can be tested with reference to the national standard GB / T 4340.10 - 2009 "Determination of Electrical Conductivity of Metallic Materials - Eddy Current Method".

[0118] In some embodiments, the second main body part is insulated.

[0119] Figure 6 FIG. is an exploded structural schematic diagram of another electrode paste processing device provided by some embodiments of the present application. Figure 7 For Figure 6 the top - view structural schematic diagram of the container shown.

[0120] Continuing to refer to Figures 6 to 7 , in some embodiments, the container 10 further includes a first conductive member 15. The first conductive member 15 is disposed in the accommodation cavity 11 and is spaced apart from the stirring paddle 13. One of the positive electrode part 21 and the negative electrode part 22 is connected to the first conductive member 15, and the other of the positive electrode part 21 and the negative electrode part 22 is connected to the tank body 12 or the stirring paddle 13.

[0121] By introducing the first conductive member 15 to undertake the electrode function, not only can the position of the first conductive member 15 be flexibly adjusted according to different requirements, but also the first conductive member 15 made of different materials can be flexibly replaced according to different electrode paste systems or process requirements, improving the applicability and flexibility of the electrode paste processing device.

[0122] Optionally, the first conductive member 15 can be, but is not limited to, a columnar structure body, a block - like structure body, or a plate - like structure body, etc.

[0123] Optionally, the first conductive member 15 can be made of, but is not limited to, materials such as titanium alloy, platinum - coated metal, or nickel - based alloy, etc.

[0124] In some embodiments, the first conductive member 15 can be connected to the tank body 12, and the first conductive member 15 is insulated from the tank body 12.

[0125] In some embodiments, it can be that the negative electrode part 22 is connected to the tank body 12 and the positive electrode part 21 is connected to the first conductive member 15.

[0126] In some embodiments, it can also be that the negative electrode part 22 is connected to the stirring paddle 13 and the positive electrode part 21 is connected to the first conductive member 15.

[0127] In some embodiments, it can also be that the negative electrode part 22 is connected to the first conductive member 15 and the positive electrode part 21 is connected to the tank body 12.

[0128] In some embodiments, the negative electrode portion 22 may also be connected to the first conductive member 15, and the positive electrode portion 21 may be connected to the stirring paddle 13.

[0129] In some embodiments, the number of the first conductive members 15 is multiple, and the multiple first conductive members 15 are arranged in an array.

[0130] Exemplarily, during the stirring process of the electrode paste, the first conductive members 15 may be reasonably arranged according to the stirring track of the stirring paddle 13, so that the metal impurity particles in the electrode paste can come into contact with the surface of the first conductive members 15 multiple times during the stirring process, or the first conductive members 15 are reasonably arranged so that the formed conductive network completely covers the entire accommodating cavity 11, so that the voltage potential in the entire accommodating cavity 11 is above the corrosion dissolution potential of the metal impurity particles in the electrode paste.

[0131] In some embodiments, the positive electrode portion 21 is connected to the first conductive member 15, the negative electrode portion 22 is connected to the tank body 12 or the stirring paddle 13, the number of the first conductive members 15 is multiple, and the multiple first conductive members 15 are arranged at intervals along the outer periphery of the stirring paddle 13.

[0132] It can be understood that when impurities such as metal particles come into contact with the positive electrode surface of the electric field, they can lose electrons more quickly to generate ionization.

[0133] Therefore, by arranging the multiple first conductive members 15 at intervals along the outer periphery of the stirring paddle 13, the multiple first conductive members 15 can increase the probability of contacting impurities such as metal particles in the electrode paste, and during the rotation of the stirring paddle 13, the metal particles and other impurities in the electrode paste can be quickly brought into contact with the surface of the first conductive members 15, which helps to improve the removal efficiency of the metal particles and other impurities.

[0134] Exemplarily, the number of the first conductive members 15 may be, but is not limited to, two, three, four, five or more.

[0135] Figure 8 FIG. is an exploded structural schematic diagram of another electrode paste processing device provided by some embodiments of the present application. Figure 9 is Figure 8 a top view structural schematic diagram of the container shown.

[0136] Continuing to refer to Figures 8 to 9 , in some embodiments, the container 10 further includes a first conductive member 15 and a second conductive member 16. The first conductive member 15 and the second conductive member 16 are both arranged in the accommodating cavity 11, and the first conductive member 15, the second conductive member 16 and the stirring paddle 13 are arranged at intervals from each other. One of the positive electrode portion 21 and the negative electrode portion 22 is connected to the first conductive member 15, and the other of the positive electrode portion 21 and the negative electrode portion 22 is connected to the second conductive member 16.

[0137] The first conductive member 15 , the second conductive member 16 and the stirring paddle 13 are spaced at an appropriate distance to prevent the first conductive member 15 and the second conductive member 16 from interfering with the rotation of the stirring paddle 13 .

[0138] Optionally, the second conductive member 16 may be, but is not limited to, a columnar structure, a block structure, or a plate structure.

[0139] Optionally, the second conductive member 16 may be made of, but is not limited to, titanium alloy, platinum-coated metal, or nickel-based alloy.

[0140] The first conductive member 15 and the second conductive member 16 may be made of the same material or different materials. As an example, the first conductive member 15 and the second conductive member 16 are made of the same material, which helps to simplify the preparation process and reduce costs.

[0141] In some embodiments, the second conductive member 16 may be connected to the tank body 12 , and the second conductive member 16 is insulated from the tank body 12 .

[0142] By introducing the first conductive member 15 and the second conductive member 16 to respectively assume the electrode functions, the position, shape and spacing design of the first conductive member 15 and the second conductive member 16 can be adjusted according to different needs to control the electric field strength distribution, so as to efficiently and specifically remove metal particles of different particle sizes and compositions, thereby further improving the applicability and flexibility of the electrode slurry processing device.

[0143] In some embodiments, the negative electrode portion 22 may be connected to the second conductive member 16 , and the positive electrode portion 21 may be connected to the first conductive member 15 .

[0144] In some embodiments, the negative electrode portion 22 may be connected to the first conductive member 15 , and the positive electrode portion 21 may be connected to the second conductive member 16 .

[0145] Exemplarily, during the stirring process of the electrode slurry, the first conductive member 15 and the second conductive member 16 can be reasonably arranged according to the stirring trajectory of the stirring paddle 13, so that the metal impurity particles in the electrode slurry can contact the surface of the positive electrode multiple times during the stirring process, or the first conductive member 15 and the second conductive member 16 can be reasonably arranged so that the formed conductive network completely covers the entire containing cavity 11, so that the voltage potential in the entire containing cavity 11 is above the corrosion and dissolution potential of the metal impurity particles in the electrode slurry.

[0146] It should be noted that when the positive electrode of the power source is connected to the first conductive member 15 , the first conductive member 15 is the positive electrode; when the positive electrode of the power source is connected to the second conductive member 16 , the second conductive member 16 is the positive electrode.

[0147] In some embodiments, the positive electrode part 21 is connected to the first conductive member 15, the negative electrode part 22 is connected to the second conductive member 16, and the number of the first conductive members 15 is greater than the number of the second conductive members 16.

[0148] By using the first conductive member 15 as the positive electrode of the electric field and increasing the number of the first conductive members 15, the probability that impurities such as metal particles in the electrode paste come into contact with the positive electrode of the electric field can be increased, which helps to improve the removal efficiency of impurities such as metal particles. Moreover, by appropriately reducing the number of the second conductive members 16, the cost can be reduced to a certain extent.

[0149] In some embodiments, the number of the first conductive members 15 is equal to the number of the second conductive members 16 to enhance the stability of the electric field.

[0150] In some embodiments, the number of the first conductive members 15 and the number of the second conductive members 16 are both plural, and the first conductive members 15 and the second conductive members 16 are arranged in groups.

[0151] Exemplarily, one first conductive member 15 and one second conductive member 16 are combined into a conductive group, and the container 10 includes a plurality of conductive groups. Among them, the plurality of conductive groups are arranged at intervals, and the first conductive members 15 and the second conductive members 16 in each conductive group are arranged at intervals.

[0152] In some embodiments, the first conductive member 15 is disposed on the stirring track of the stirring paddle 13 and / or the dispersion disk 14.

[0153] In some embodiments, the second conductive member 16 is disposed on the stirring track of the stirring paddle 13 and / or the dispersion disk 14.

[0154] Figure 10 It is an exploded structural schematic diagram of a container of an electrode paste processing device provided by some embodiments of the present application. Figure 11 For Figure 10 the top view structural schematic diagram of the first tank part shown.

[0155] Continue to refer to Figures 10 to 11 , in some embodiments, the tank body 12 includes a first tank part 12a and a second tank part 12b. The first tank part 12a includes at least part of the accommodation cavity 11. The first tank part 12a and the second tank part 12b are arranged along the first direction X, and the second tank part 12b is configured to be movably arranged relative to the first tank part 12a along the first direction X, and the stirring paddle 13 is rotatably connected to the second tank part 12b.

[0156] Exemplarily, the first tank part 12a serves as the main part for accommodating the electrode paste. The first tank part 12a may include all of the accommodation cavity 11 or may include part of the accommodation cavity 11.

[0157] As an example, the first tank portion 12a includes the entire accommodation cavity 11, and the second tank portion 12b can be a cover plate structure. One end of the first tank portion 12a along the first direction X has a first opening, and the second tank portion 12b is disposed on a side of the first tank portion 12a close to the first opening.

[0158] By configuring the tank body 12 to include the first tank portion 12a and the second tank portion 12b, and with the second tank portion 12b being designed to be movable, the container 10 can have higher operation flexibility, significantly improving convenience and efficiency during the processes of loading electrode paste, internal maintenance, cleaning, etc., and reducing manual operation intensity and downtime. The stirring paddle 13 is rotatably connected to the second tank portion 12b and can be conveniently exposed or retracted as the second tank portion 12b moves, greatly facilitating the maintenance, disassembly, and cleaning of the stirring paddle 13 and enhancing the overall maintainability of the electrode paste processing device.

[0159] In some embodiments, the second tank portion 12b can be connected to the first tank portion 12a, that is, the second tank portion 12b is movably connected to the first tank portion 12a.

[0160] In some embodiments, the first tank portion 12a and the second tank portion 12b are independently provided, and the electrode paste processing device further includes a third driving mechanism. The second tank portion 12b is connected to the third driving mechanism, and the third driving mechanism is used to drive the second tank portion 12b to move along the first direction X.

[0161] In some embodiments, the dispersion disk 14 is rotatably connected to the second tank portion 12b.

[0162] In some embodiments, the first conductive member 15 is connected to the second tank portion 12b.

[0163] In some embodiments, the second conductive member 16 is connected to the second tank portion 12b.

[0164] In some embodiments, the stirring paddle 13 is detachably connected to the second tank portion 12b.

[0165] In some embodiments, the dispersion disk 14 is detachably connected to the second tank portion 12b.

[0166] In some embodiments, the first conductive member 15 is detachably connected to the second tank portion 12b.

[0167] In some embodiments, the second conductive member 16 is detachably connected to the second tank portion 12b.

[0168] In some embodiments, the tank body 12 has a first wall 121 in a direction parallel to the rotation axis of the stirring paddle 13. A slurry outlet 122 is formed on the first wall 121, and the slurry outlet 122 is located in the middle area of the first wall 121. This can enable the electrode slurry to be under the dual action of gravity and stirring flow during the discharging process, forming a stable, continuous and uniform flow, significantly improving the discharging efficiency of the electrode slurry and reducing the residue.

[0169] In some embodiments, the first tank portion 12a includes the first wall 121.

[0170] In some embodiments, the voltage between the positive electrode portion 21 and the negative electrode portion 22 is 3.5V - 36V.

[0171] As an example, the voltage between the positive electrode portion 21 and the negative electrode portion 22 can be, but is not limited to, 3.5V, 5V, 10V, 15V, 20V, 25V, 30V, 35V, 36V, etc.

[0172] Setting the voltage between the positive electrode portion 21 and the negative electrode portion 22 to be greater than or equal to 3.5V can, to a certain extent, ensure the removal effect of impurities such as metal particles in the electrode slurry; setting the voltage between the positive electrode portion 21 and the negative electrode portion 22 to be less than or equal to 36V can reduce the risk of injury to the operator when accidentally touching the electrode, improving the safety of the electrode slurry processing device.

[0173] In some embodiments, the voltage between the positive electrode portion 21 and the negative electrode portion 22 is 5V - 12V.

[0174] As an example, the voltage between the positive electrode portion 21 and the negative electrode portion 22 can be, but is not limited to, 5V, 6V, 7V, 8V, 9V, 10V, 11V, 12V, etc.

[0175] In some embodiments, the current between the positive electrode portion 21 and the negative electrode portion 22 is 1mA - 10mA.

[0176] As an example, the current between the positive electrode portion 21 and the negative electrode portion 22 can be, but is not limited to, 1mA, 2mA, 3mA, 4mA, 5mA, 6mA, 7mA, 8mA, 9mA, 10mA, etc.

[0177] Setting the current between the positive electrode portion 21 and the negative electrode portion 22 to be greater than or equal to 1mA can, to a certain extent, ensure the removal effect of impurities such as metal particles in the electrode slurry; setting the current between the positive electrode portion 21 and the negative electrode portion 22 to be less than or equal to 10mA can reduce the risk of injury to the operator when accidentally touching the electrode, improving the safety of the electrode slurry processing device.

[0178] In some embodiments, the current between the positive electrode portion 21 and the negative electrode portion 22 is 3mA - 6mA.

[0179] As an example, the current between the positive electrode part 21 and the negative electrode part 22 can be, but is not limited to, 3 mA, 3.5 mA, 4 mA, 4.5 mA, 5 mA, 5.5 mA, 6 mA, etc.

[0180] In some embodiments, a pulsed voltage is applied between the positive electrode part 21 and the negative electrode part 22.

[0181] In some embodiments, a pulsed current is applied between the positive electrode part 21 and the negative electrode part 22.

[0182] Through the periodically changing electric field environment, not only can the ionization efficiency of metal impurities be effectively improved, but also by flexibly adjusting the pulse frequency or amplitude, a processing solution can be customized according to different electrode paste characteristics, enhancing the versatility and process adaptability of the electrode paste processing device. In addition, the pulsed voltage and pulsed current application methods can effectively reduce energy consumption, reduce the problem of heat accumulation, and improve the energy efficiency ratio.

[0183] According to some embodiments of the present application, the present application also provides a battery production device, including the electrode paste processing device of any of the above solutions.

[0184] To better understand the electrode paste processing device provided by the embodiments of the present application, based on the same inventive concept, embodiments of the above electrode paste processing device in practical applications are provided here for illustration.

[0185] The embodiments of the present application provide an electrode paste processing device. The electrode paste processing device includes a container 10 and a power supply 20. The container 10 includes a tank body 12, a stirring paddle 13, a dispersion disk 14, a first conductive member 15, and a second conductive member 16. The tank body 12 includes a receiving cavity 11 for receiving the electrode paste. The stirring paddle 13 is disposed in the receiving cavity 11 and is configured to be rotatable relative to the tank body 12. The stirring paddle 13 is used for stirring the electrode paste. The dispersion disk 14 is disposed in the receiving cavity 11 and is configured to be rotatable relative to the tank body 12. The dispersion disk 14 is used for stirring the electrode paste. The first conductive member 15 and the second conductive member 16 are both disposed in the receiving cavity 11, and the first conductive member 15, the second conductive member 16, the stirring paddle 13, and the dispersion disk 14 are spaced apart from each other.

[0186] The power supply 20 includes a positive electrode part 21 and a negative electrode part 22. One of the positive electrode part 21 and the negative electrode part 22 is connected to the first conductive member 15, and the other of the positive electrode part 21 and the negative electrode part 22 is connected to the second conductive member 16. The power supply 20 is used to apply an electric field to the electrode paste received in the receiving cavity 11.

[0187] Through the above technical solution, by applying an electric field to the electrode paste located in the container 10 with the power supply 20, metal particles and other impurities in the electrode paste can be electrolytically ionized, so that the metal particles and other impurities in the electrode paste can be effectively removed, and the quality of the electrode paste can be effectively improved.

[0188] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0189] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; 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 covered by the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrode paste processing device, characterized in that, Comprising: A container having a receiving cavity for receiving electrode paste; A power supply including a positive electrode part and a negative electrode part, both the positive electrode part and the negative electrode part being connected to the container, the power supply being configured to apply an electric field to the electrode paste received in the receiving cavity; Wherein, the container includes a tank body, a stirring paddle, a first conductive member and a second conductive member, the tank body includes the receiving cavity, the stirring paddle is disposed in the receiving cavity and is configured to be rotatable relative to the tank body, the stirring paddle being used for stirring the electrode paste; Both the first conductive member and the second conductive member are disposed in the receiving cavity, and the first conductive member, the second conductive member and the stirring paddle are spaced apart from each other; One of the positive electrode part and the negative electrode part is connected to the first conductive member, and the other of the positive electrode part and the negative electrode part is connected to the second conductive member.

2. The electrode paste processing device according to claim 1, wherein One of the positive electrode part and the negative electrode part is further connected to the tank body.

3. The electrode paste processing device according to claim 1, wherein, One of the positive electrode part and the negative electrode part is further connected to the stirring paddle.

4. The electrode paste processing device according to claim 3, wherein, The stirring paddle includes a first main body part and a first conductive layer disposed on an outer surface of the first main body part, the conductivity of the first conductive layer being greater than the conductivity of the first main body part, and one of the positive electrode part and the negative electrode part being connected to the first conductive layer.

5. The electrode paste processing device according to claim 1, wherein The container further includes a dispersion disk disposed in the receiving cavity and spaced apart from the stirring paddle, the dispersion disk being configured to be rotatable relative to the tank body, the dispersion disk being used for stirring the electrode paste.

6. The electrode paste processing device according to claim 5, wherein One of the positive electrode part and the negative electrode part is further connected to the dispersion disk.

7. The electrode paste processing device according to claim 6, characterized in that, The dispersion disk includes a second main body part and a second conductive layer disposed on an outer surface of the second main body part, the conductivity of the second conductive layer being greater than the conductivity of the second main body part, and one of the positive electrode part and the negative electrode part being connected to the second conductive layer.

8. The electrode paste processing device according to claim 1, wherein, The positive electrode part is connected to the first conductive member, and the number of the first conductive members is multiple, and the multiple first conductive members are spaced apart along the outer periphery of the stirring paddle.

9. The electrode paste processing device according to claim 1, wherein The positive electrode part is connected to the first conductive member, and the negative electrode part is connected to the second conductive member; The number of the first conductive members is greater than the number of the second conductive members.

10. The electrode paste processing device according to claim 1, characterized in that The tank body includes a first tank part and a second tank part, the first tank part includes at least part of the receiving cavity, the first tank part and the second tank part are disposed along a first direction, and the second tank part is configured to be movable relative to the first tank part along the first direction, and the stirring paddle is rotatably connected to the second tank part.

11. The electrode paste processing device according to claim 1, characterized in that, The tank body has a first wall in a direction parallel to the rotation axis of the stirring paddle, and a paste outlet is formed in the first wall, and the paste outlet is located in a middle area of the first wall.

12. The electrode paste processing device according to claim 1, characterized in that, The voltage between the positive electrode part and the negative electrode part is 3.5V - 36V; and / or, The current between the positive electrode part and the negative electrode part is 1mA - 10mA.

13. The electrode paste processing device according to claim 1, characterized in that, The voltage between the positive electrode part and the negative electrode part is a pulsed voltage; and / or, The current between the positive electrode part and the negative electrode part is a pulsed current.

14. A battery production device, characterized in that, Comprising the electrode paste processing device according to any one of claims 1-13.

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