Mixing equipment and battery production device

Abstract

The utility model discloses material mixing equipment and a battery production device, the material mixing equipment comprises a material mixing container, a stirring assembly and a spraying assembly, the material mixing container is internally provided with an accommodating cavity, and the accommodating cavity is used for accommodating a mixture to be mixed; the stirring assembly extends into the accommodating cavity and can be used for stirring a mixture to be mixed; the spraying assembly is communicated with the containing cavity and can spray plasma jet in the stirring process and modify a to-be-mixed material, so that the surface property of the to-be-mixed material can be changed, depolymerization among particles of the to-be-mixed material can be conveniently achieved, the mixing uniformity of the to-be-mixed material can be improved, and the mixing efficiency of the to-be-mixed material is improved. And the mixing effect of the mixing equipment is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, and more specifically, to a mixing device and a battery production apparatus. Background Art

[0002] During battery production, the performance of the electrode directly impacts the performance of the finished battery. Currently, electrode manufacturing methods include dry electrode technology and wet electrode technology. Dry electrode technology is favored by battery manufacturers due to its lower energy consumption, lower cost, and better environmental performance.

[0003] However, in the powder mixing process, since the dry electrode technology eliminates the participation of solvents, its mixing effect is not ideal. Utility Model Content

[0004] The purpose of the utility model is to provide a new technical solution for mixing equipment and battery production equipment.

[0005] According to one aspect of the present invention, there is provided a mixing device comprising:

[0006] A mixing container, wherein the mixing container has a receiving cavity therein, and the receiving cavity is used to receive the mixture;

[0007] a stirring assembly, the stirring assembly extending into the accommodating cavity and capable of stirring the mixture;

[0008] The injection assembly is communicated with the accommodating chamber and can inject a plasma jet during the stirring process to modify the mixture.

[0009] Optionally, the injection assembly has an injection port, the inner wall of the mixing container has a first opening, the injection assembly is located at the first opening, and the injection port can be communicated with the accommodating cavity.

[0010] Optionally, the mixing container includes a shell and a first cover, wherein the first cover is movably connected to the shell, and the first cover can close or open the first opening.

[0011] Optionally, the first opening is provided on an upper portion of a side wall of the shell, and / or the first opening is provided on a top wall of the shell.

[0012] Optionally, the mixing container includes a shell having a second opening, and the stirring assembly can extend into the accommodating cavity from the second opening.

[0013] Optionally, the stirring assembly includes a stirring member and a driving member, one end of the stirring member is connected to the output end of the driving member, and the other end of the stirring member can extend into the accommodating cavity from the second opening; under the drive of the driving member, the stirring member can stir the mixture.

[0014] Optionally, the stirring member includes a rotating shaft and at least one blade provided on the rotating shaft, the rotating shaft is connected to the output end of the driving member, and under the drive of the driving member, the blade can rotate around the rotating shaft and stir the mixture.

[0015] Optionally, the second opening is located in the middle of the bottom wall of the shell.

[0016] Optionally, a flow stirring member is further included, wherein the flow stirring member is arranged on the side wall of the shell and is used to mix the mixture.

[0017] Optionally, the mixing container includes a shell and a second cover plate, the shell has a third opening, the third opening is communicated with the accommodating cavity, and the second cover plate is connected to the shell and can close or open the third opening.

[0018] Optionally, the mixing container further includes a third cover plate, the shell further includes a fourth opening, the fourth opening is communicated with the accommodating cavity, the third cover plate is connected to the shell and can close or open the fourth opening, and one of the third opening and the fourth opening is used for feeding, and the other of the third opening and the fourth opening is used for discharging.

[0019] Optionally, the shell has a hollow sandwich structure, and a temperature-conducting medium flows in the hollow sandwich of the shell, and the temperature-conducting medium is used to control the temperature of the mixing equipment.

[0020] Optionally, a liquid inlet and a liquid outlet are further provided on the shell, and the temperature conducting medium can flow into the liquid inlet and flow out of the liquid outlet, and the liquid inlet or the liquid outlet is connected to a temperature control device.

[0021] According to another aspect of the present invention, a battery production device is provided, comprising the above-mentioned mixing equipment.

[0022] One of the technical effects of the present invention is:

[0023] The mixing equipment includes a mixing container, a stirring assembly and a spraying assembly. The mixing container has a accommodating cavity, which is used to accommodate the mixture; the stirring assembly extends into the accommodating cavity and can stir the mixture; the spraying assembly is connected to the accommodating cavity, and can spray a plasma jet during the stirring process and modify the mixture, thereby changing the surface properties of the mixture, facilitating the deagglomeration between the particles of the mixture, so as to improve the mixing uniformity of the mixture and also improve the mixing effect of the mixing equipment.

[0024] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0026] Figure 1 It is a schematic diagram of a mixing device according to an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 10. Mixing container; 101. Shell; 1011. Accommodating chamber; 1012. Liquid inlet; 1013. Liquid outlet; 102. First cover plate; 103. Second cover plate; 104. Third cover plate; 20. Stirring assembly; 201. Stirring member; 2011. Rotating shaft; 2012. Blade; 202. Driving member; 30. Injection assembly; 301. Injection port; 40. Flow stirring member. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0031] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0032] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0033] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0034] The utility model provides a mixing device that can be used in a battery production process. The battery includes pole pieces, which can be manufactured using dry electrode technology or wet electrode technology.

[0035] like Figure 1 As shown, the mixing equipment provided by the utility model includes:

[0036] A mixing container 10, wherein the mixing container 10 has a receiving cavity 1011 therein, and the receiving cavity 1011 is used to receive the mixture;

[0037] A stirring assembly 20, the stirring assembly 20 extends into the accommodating cavity 1011 and is capable of stirring the mixture;

[0038] The injection assembly 30 is connected to the accommodating chamber 1011. The injection assembly 30 can inject a plasma jet during the stirring process and modify the mixture.

[0039] Specifically, the mixing container 10 is used to hold the mixture and facilitate subsequent stirring and mixing processes. The mixing container 10 includes a chamber 1011. The size and shape of the chamber 1011 can be designed to accommodate various sizes of mixtures. The container 10 can be constructed from high-temperature and corrosion-resistant materials, such as stainless steel or ceramic composites, to ensure the stability and safety of the mixing equipment during extended use.

[0040] The stirring assembly 20 may include a stirring shaft and stirring blades, wherein one end of the stirring shaft can extend into the accommodating chamber 1011, and the stirring blades are fixed to the stirring shaft. The stirring assembly 20 also includes a drive portion, which can be located outside the mixing container 10 and connected to the other end of the stirring shaft inside the mixing container 10 via a sealing structure to prevent leakage of the mixed material. The shape and number of the stirring blades can be designed according to the characteristics of the mixed material and the stirring requirements to achieve a good stirring effect.

[0041] like Figure 1As shown, the injection assembly 30 is connected to the receiving chamber 1011 and can generate plasma jets. These plasma jets can enter the receiving chamber 1011 and contact the mixed material in the receiving chamber 1011, thereby modifying the mixed material, thereby changing the surface properties of the mixed material, facilitating the depolymerization of the mixed material, and thereby improving the mixing uniformity of the mixed material. The connection between the injection assembly 30 and the mixing container 10 can be provided with a sealing structure to ensure that the plasma jet can be accurately and stably injected into the mixed material while preventing leakage of the mixed material.

[0042] When using the mixing device of the present invention, the mixture is first placed into the receiving chamber 1011 through the feed port. The stirring assembly 20 is then activated, and the stirring blades are rotated by the stirring shaft to stir the mixture. During the stirring process, the spray assembly 30 is activated to generate a plasma jet, which is then injected into the mixture to modify it.

[0043] The plasma jet ejected by the injection assembly 30 during the mixing process is characterized by high temperature, high velocity, and high energy, enabling surface modification of the mixture. This modification can improve the surface properties of the mixture, such as increasing surface activity and modifying surface roughness, thereby enhancing the overall performance of the mixture and facilitating the disaggregation of particles in the mixture. Furthermore, by combining the mixing and modification steps into one, the modification process is completed during the mixing process, significantly improving the production efficiency of the mixing equipment.

[0044] The stirring assembly 20 stirs the mixture so that it is fully mixed within the receiving chamber 1011, thus preventing sedimentation and stratification of the mixture. The plasma jet is ejected by the injection assembly 30, so that during the stirring process, the plasma jet can penetrate deep into the mixture, further breaking up the agglomeration between particles, making the mixture more uniform and ensuring the performance of the electrode produced using the mixing device.

[0045] Optionally, the injection assembly 30 has an injection port 301 , and the inner wall of the mixing container 10 has a first opening. The injection assembly 30 is located at the first opening, and the injection port 301 can be communicated with the accommodating cavity 1011 .

[0046] like Figure 1 As shown, according to the specific design of the mixing equipment and the actual mixing needs, the first opening can be provided on the side wall of the shell of the mixing container 10, the first opening can also be provided on the top wall of the shell of the mixing container 10, or the first opening can also be provided on the bottom wall of the shell of the mixing container 10.

[0047] The injection assembly 30 is disposed at a position corresponding to the first opening of the housing 101, so that the injection port 301 of the injection assembly 30 can communicate with the accommodating chamber 1011. The injection port 301 can extend directly into the accommodating chamber 1011 and communicate with the accommodating chamber 1011, or the injection port 301 can communicate with the accommodating chamber 1011 through the first opening. This facilitates the plasma jet injected by the injection assembly 30 through the injection port 301 to enter the accommodating chamber 1011 and contact the mixture in the accommodating chamber 1011, thereby modifying the mixture to change the surface properties of the mixture, facilitating the depolymerization of the mixture, and thereby improving the mixing uniformity of the mixture.

[0048] Optionally, the mixing container 10 includes a shell 101 and a first cover 102 , wherein the first cover 102 is movably connected to the shell 101 , and the first cover 102 can close or open the first opening.

[0049] like Figure 1 As shown, the housing 101 forms a receiving chamber 1011 for holding a mixture. The housing 101 has a first opening, and the first cover 102 is movably connected to the first opening of the housing 101. For example, the first cover can rotate or flip along its connection with the housing 101 to open or close the first opening, or the first cover can translate within a corresponding region of the housing 101 to open or close the first opening. This allows the first opening to be opened during the spraying process of the spray assembly 30 and closed after spraying is complete to prevent dust from entering.

[0050] Optionally, the first opening is provided on an upper portion of a side wall of the housing 101 , and / or the first opening is provided on a top wall of the housing 101 .

[0051] Specifically, a first opening can be opened on the upper part of the side wall of the shell 101, that is, the height of the first opening is not less than half of the height of the side wall of the shell 101; a first opening can also be opened on the top wall of the shell 101; and first openings can also be opened on the upper part of the side wall and the top wall of the shell 101 respectively, so as to adapt to different mixing requirements and improve the modification effect of the mixing equipment.

[0052] Optionally, the mixing container 10 includes a shell 101 having a second opening, and the stirring assembly 20 can extend into the accommodating cavity 1011 through the second opening. Figure 1 As shown, the second opening may be located on the bottom wall of the housing 101 , so that the stirring assembly 20 can extend from the bottom into the accommodating cavity 1011 and stir the mixture therein.

[0053] Optionally, the stirring assembly 20 includes a stirring member 201 and a driving member 202, one end of the stirring member 201 is connected to the output end of the driving member 202, and the other end of the stirring member 201 can extend into the accommodating cavity 1011 from the second opening; under the drive of the driving member 202, the stirring member 201 can stir the mixture.

[0054] like Figure 1 As shown, the driving member 202 includes a driving source and a transmission member. The driving source includes, but is not limited to, a motor and a cylinder, and the transmission member includes, but is not limited to, a belt and pulley, a chain, and a sprocket. One end of the transmission member is connected to the output end of the driving source, and the other end of the transmission member is connected to the stirring member 201, so that under the drive of the driving source, the transmission member can drive the stirring member 201 to move and stir the mixture.

[0055] Optionally, the stirring member 201 includes a rotating shaft 2011 and at least one blade 2012 provided on the rotating shaft 2011, and the rotating shaft 2011 is connected to the output end of the driving member 202. Under the drive of the driving member 202, the blade 2012 can rotate around the rotating shaft 2011 and stir the mixture.

[0056] like Figure 1 As shown, according to actual design and stirring requirements, the number and specific positions of the blades 2012 connected to the rotating shaft 2011 can be adjusted. Driven by the driving member 202, the blades 2012 can rotate around the rotating shaft 2011 and stir the mixture so that the mixture can be mixed evenly.

[0057] Optionally, the second opening is located in the middle of the bottom wall of the housing 101 .

[0058] Specifically, on the one hand, the stirring assembly 20 can extend from the bottom into the accommodating chamber 1011 and stir and mix the mixture therein, and can also ensure that the stirring assembly 20 contacts a sufficient amount of the mixture. On the other hand, the second opening is provided in the middle of the bottom wall of the housing 101, which can facilitate the installation and fixation of the stirring assembly 20 and provide sufficient stirring space for the stirring assembly 20.

[0059] Optionally, a flow stirring member 40 is further included, and the flow stirring member 40 is provided on the side wall of the housing 101, and the flow stirring member 40 is used to mix the mixture. Figure 1 As shown, the flow stirring member 40 can enhance the airflow during the stirring process to improve the mixing effect of the mixture.

[0060] Optionally, the mixing container 10 includes a shell 101 and a second cover 103 , the shell 101 has a third opening, the third opening is communicated with the accommodating cavity 1011 , and the second cover 103 is connected to the shell 101 and can close or open the third opening.

[0061] like Figure 1 As shown, the third opening can be an inlet or outlet of the mixing device. The second cover plate 103 is detachably connected to the third opening of the housing 101, or the second cover plate 103 is movably connected to the third opening of the housing 101 and can close or open the third opening to facilitate feeding or discharging.

[0062] Optionally, the mixing container 10 further includes a third cover plate 104, and the shell 101 further includes a fourth opening, which is connected to the accommodating cavity 1011. The third cover plate 104 is connected to the shell 101 and can close or open the fourth opening, and one of the third opening and the fourth opening is used for feeding, and the other of the third opening and the fourth opening is used for discharging.

[0063] like Figure 1 As shown, the third opening can be set as the inlet of the mixing device, and the fourth opening can be set as the outlet of the mixing device. Usually the inlet is located above the outlet, that is, Figure 1 The third opening is located above the fourth opening, which facilitates easy entry and discharge of the mixture and saves driving force.

[0064] The third cover plate 104 can be detachably connected to the fourth opening of the shell 101, or the third cover plate 104 can be movably connected to the fourth opening of the shell 101, and can close or open the fourth opening, so that the fourth opening can be closed to avoid leakage of the mixture, and the fourth opening can be opened after the mixing is completed to facilitate the discharge of the mixed mixture.

[0065] Optionally, the shell 101 is a hollow sandwich structure, and a heat-conducting medium flows in the hollow sandwich of the shell 101, and the heat-conducting medium is used to control the temperature of the mixing equipment.

[0066] Specifically, the heat transfer medium includes but is not limited to heat transfer oil and cooling water. The flow of the heat transfer medium in the hollow interlayer of the shell 101 can conveniently adjust the working temperature of the mixing equipment, so that the mixing equipment can be at a good working temperature, thereby improving the mixing effect.

[0067] Optionally, the shell 101 is further provided with a liquid inlet 1012 and a liquid outlet 1013 , the temperature conducting medium can flow in from the liquid inlet 1012 and flow out from the liquid outlet 1013 , and the liquid inlet 1012 or the liquid outlet 1013 is connected to a temperature control device.

[0068] like Figure 1 As shown, the liquid inlet 1012 is used for the inflow of the heat transfer medium, and the liquid outlet 1013 is used for the outflow of the heat transfer medium. The liquid inlet 1012 or the liquid outlet 1013 is connected to a temperature control device so that the temperature of the heat transfer medium can be adjusted by the temperature control device, thereby adjusting the operating temperature of the mixing device. The liquid inlet 1012 is usually located above the liquid outlet 1013 to facilitate the flow of the heat transfer medium and save driving force.

[0069] The utility model also provides a battery production device, characterized in that it includes the aforementioned mixing equipment.

[0070] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0071] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art will appreciate that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A mixing device, characterized in that: include: A mixing container (10), wherein the mixing container (10) has a receiving cavity (1011) therein, and the receiving cavity (1011) is used to receive a substance to be mixed; a stirring assembly (20), the stirring assembly (20) extending into the accommodating cavity (1011) and capable of stirring the mixture; A spray assembly (30) is connected to the accommodating chamber (1011), and the spray assembly (30) is capable of spraying a plasma jet during the stirring process and modifying the mixture.

2. The mixing equipment according to claim 1, characterized in that The injection assembly (30) has an injection port (301), the inner wall of the mixing container (10) has a first opening, the injection assembly (30) is located at the first opening, and the injection port (301) can be communicated with the accommodating cavity (1011).

3. The mixing device according to claim 2, characterized in that The mixing container (10) comprises a shell (101) and a first cover (102), wherein the first cover (102) is movably connected to the shell (101), and the first cover (102) can close or open the first opening.

4. The mixing device according to claim 3, characterized in that The first opening is provided on the upper portion of the side wall of the shell (101), and / or the first opening is provided on the top wall of the shell (101).

5. The mixing equipment according to claim 1, characterized in that The mixing container (10) comprises a shell (101), the shell (101) has a second opening, and the stirring component (20) can extend into the accommodating cavity (1011) from the second opening.

6. The mixing device according to claim 5, characterized in that The stirring assembly (20) comprises a stirring member (201) and a driving member (202); one end of the stirring member (201) is connected to the output end of the driving member (202); the other end of the stirring member (201) can extend from the second opening into the accommodating cavity (1011); and under the drive of the driving member (202), the stirring member (201) can stir the mixture.

7. The mixing device according to claim 6, characterized in that The stirring member (201) comprises a rotating shaft (2011) and at least one blade (2012) provided on the rotating shaft (2011); the rotating shaft (2011) is connected to the output end of the driving member (202); and under the drive of the driving member (202), the blade (2012) can rotate around the rotating shaft (2011) and stir the mixture.

8. The mixing device according to claim 5, characterized in that The second opening is located in the middle of the bottom wall of the housing (101).

9. The mixing device according to claim 8, characterized in that It also includes a flow stirring member (40), which is arranged on the side wall of the shell (101) and is used to mix the mixture.

10. The mixing device according to claim 1, characterized in that The mixing container (10) comprises a shell (101) and a second cover plate (103); the shell (101) has a third opening, the third opening is communicated with the accommodating cavity (1011); the second cover plate (103) is connected to the shell (101) and can close or open the third opening.

11. The mixing device according to claim 10, characterized in that The mixing container (10) further includes a third cover plate (104), and the shell (101) further has a fourth opening, the fourth opening being in communication with the accommodating chamber (1011), the third cover plate (104) being connected to the shell (101) and capable of closing or opening the fourth opening, and one of the third opening and the fourth opening is used for material input, and the other of the third opening and the fourth opening is used for material output.

12. The mixing device according to claim 10, characterized in that The shell (101) is a hollow sandwich structure, and a heat-conducting medium flows in the hollow sandwich of the shell (101), and the heat-conducting medium is used to control the temperature of the mixing equipment.

13. The mixing device according to claim 12, characterized in that The housing (101) is further provided with a liquid inlet (1012) and a liquid outlet (1013); the temperature conducting medium can flow in from the liquid inlet (1012) and flow out from the liquid outlet (1013); and the liquid inlet (1012) or the liquid outlet (1013) is connected to a temperature control device.

14. A battery production device, characterized in that: A mixing device comprising the mixing device according to any one of claims 1 to 13.

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