Fusion machine and fusion method

Abstract

The invention discloses a fusion machine and a fusion method, and relates to the technical field of lithium batteries, the fusion machine comprises a shell, a rotor structure and a rotation driving structure, the shell is provided with a feeding structure and a discharging structure, the feeding structure is provided with a feeding port, the discharging structure is provided with a discharging port, the rotor structure is arranged in the shell, and the rotation driving structure is arranged in the shell. The rotation driving structure is used for driving the rotor structure to rotate relative to the shell, spherical graphite enters the shell through the feeding port, the rotation driving structure drives the rotor structure to rotate, and the spherical graphite collides with the rotor structure and the shell so that embedding fusion of the spherical graphite can be achieved. According to the fusion machine and the fusion method, the spherical graphite can be effectively embedded and fused, and the effect of improving the tap density of the lithium battery negative electrode material is achieved.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, and in particular to a fusion machine and fusion method. Background Technology

[0002] Spherical graphite is a graphite product made from high-quality, high-carbon natural flake graphite as raw material, using advanced processing technology to modify the graphite surface, producing micro-particles of different sizes that resemble elliptical spheres.

[0003] Spherical graphite can be used as the negative electrode material in lithium-ion batteries. It stores lithium ions during charging and releases them during discharging. The layered structure of spherical graphite allows lithium ions to be embedded between the graphite layers, achieving efficient electronic energy storage and release. Spherical graphite has good electrical conductivity, which facilitates the rapid transport of lithium ions between the graphite layers. It also has a high specific capacity, meaning it can store more lithium ions, thus increasing the battery's energy density. The relatively low cost of spherical graphite contributes to the affordability of lithium-ion batteries. The structural stability of spherical graphite helps improve the battery's cycle life. During charge-discharge cycles, the negative electrode material expands and contracts; spherical graphite effectively resists this stress, extending the battery's lifespan. Finally, spherical graphite exhibits good chemical stability, contributing to stable battery operation under various working conditions.

[0004] The tap density of spherical graphite primarily affects lithium-ion batteries in terms of energy density, charge-discharge performance, and cycle life. Its tap density significantly influences its application in lithium-ion batteries. Higher tap density means more graphite particles can be packed into the same volume, thus increasing the battery's energy density. For lithium-ion battery anode materials, higher tap density helps increase the mass of active material per unit volume, thereby improving the battery's volumetric capacity. However, current technology lacks equipment capable of increasing the tap density of spherical graphite through intercalation and fusion. Summary of the Invention

[0005] The purpose of this invention is to provide a fusion machine and fusion method to solve the problems existing in the prior art, which can effectively embed and fuse spherical graphite and improve the tap density of lithium battery anode materials.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] This invention provides a fusion machine, comprising: a housing, a rotor structure, and a rotation drive structure. The housing is provided with a feeding structure and a discharging structure. The feeding structure is provided with a feeding port, and the discharging structure is provided with a discharging port. The rotor structure is disposed in the housing. The rotation drive structure is used to drive the rotor structure to rotate relative to the housing. Spherical graphite enters the housing through the feeding port. The rotation drive structure drives the rotor structure to rotate. The spherical graphite collides with the rotor structure and the housing to achieve the embedding and fusion of the spherical graphite.

[0008] Preferably, the rotor structure includes a turntable, at least two collision blocks, and at least two column structures. The rotation drive structure is connected to the turntable. The collision blocks are disposed on the outer side of the turntable and have a first collision surface. The first collision surface is inclined. One end of the collision block is connected to the turntable. One end of the column structure is connected to the collision block and has a column collision surface. During the rotation of the turntable, the collision blocks, and the column structures, the spherical graphite can be embedded and fused by colliding with the first collision surface, the column collision surface, and the shell.

[0009] Preferably, the center lines of the collision blocks do not pass through the center of the turntable; the angle between the first collision surface of each collision block and the axis of the turntable is the same.

[0010] Preferably, the other end of the collision block is a second collision surface, which corresponds to the collision surface of the column; the second collision surface is a first arc-shaped surface, the collision surface of the column is a second arc-shaped surface, the first arc-shaped surface and the second arc-shaped surface are located on the same arc surface, and the center and radius of the circles corresponding to each first arc-shaped surface are the same.

[0011] Preferably, the height of the rotor structure is H, the outer diameter of the rotor structure is K, and the ratio of K / H is between 2.5 and 3.

[0012] Preferably, a cooling channel is provided inside the side wall of the housing, and a cooling medium is introduced into the cooling channel. The inlet of the cooling channel is lower than the outlet of the cooling channel.

[0013] Preferably, the rotation drive structure and the rotor structure are connected by a main shaft drive. A bearing housing is provided on the outside of the main shaft, and a bearing housing cooling channel is provided on the outside of the bearing housing. Cooling medium is introduced into the bearing housing cooling channel.

[0014] Preferably, the housing is provided with a temperature detection element, a pressure detection element, an observation port and a gas inlet, wherein the temperature detection element is used to detect the temperature inside the housing and the pressure detection element is used to detect the pressure inside the housing.

[0015] Preferably, the feeding structure is coaxially arranged with the rotor structure; the housing is coaxially arranged with the rotor structure.

[0016] The present invention also provides a fusion method using the aforementioned fusion machine, comprising:

[0017] Based on the usage requirements of the prepared battery, the proportion of spherical graphite of each particle size is calculated, and the spherical graphite is put into the shell through the feed port;

[0018] After the spherical graphite enters the shell, it comes into contact with the rotor structure. Through the rotation drive structure, the rotor structure is driven to rotate. During the rotation of the rotor structure, the spherical graphite comes into contact with the rotor structure and forms a vortex from bottom to top. After the spherical graphite moves to the highest point, it descends. Under the action of centrifugal force, the spherical graphite enters the gap between the rotor structure and the shell. The spherical graphite collides with the rotor structure and the shell. The spherical graphite repeatedly rises and falls from bottom to top in the shell. The spherical graphite collides with each other, and the smaller spherical graphite is embedded in the gap of the larger spherical graphite until the required tap density is achieved.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] This invention utilizes a rotational drive structure to rotate a rotor structure. Spherical graphite particles move within the housing, colliding with the rotor structure and the housing. Smaller spherical graphite particles can embed and fuse into the gaps between larger ones. After a period of rotation, the desired tap density is achieved. This invention effectively embeds and fuses spherical graphite, thereby improving the tap density of lithium-ion battery anode materials. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 These are isometric views of the fusion machine in some embodiments of the present invention;

[0023] Figure 2 This is a schematic diagram of the movement of spherical graphite within a fusion machine in some embodiments of the present invention;

[0024] Figure 3 This is a cross-sectional view of the top cover in some embodiments of the present invention;

[0025] Figure 4 This is a top view of the top cover in some embodiments of the present invention;

[0026] Figure 5 This is a top view of the middle section in some embodiments of the present invention;

[0027] Figure 6 This is a side view of the middle section in some embodiments of the present invention;

[0028] Figure 7 This is a front view of the middle section in some embodiments of the present invention;

[0029] Figure 8 This is a top view of the base in some embodiments of the present invention;

[0030] Figure 9 This is a side view of the base in some embodiments of the present invention;

[0031] Figure 10 This is a front view of the base in some embodiments of the present invention;

[0032] Figure 11 These are isometric views of the rotor structure in some embodiments of the present invention;

[0033] Figure 12 This is a front view of the rotor structure in some embodiments of the present invention;

[0034] Figure 13 This is a top view of the rotor structure in some embodiments of the present invention;

[0035] Figure 14 This is a side view of a collision block in some embodiments of the present invention;

[0036] Figure 15 These are cross-sectional views of the rotor structure and housing in some embodiments of the present invention;

[0037] In the diagram: 1000 - Fusion machine, 100 - Rotor structure, 1 - Turntable, 2 - Collision block, 3 - Column structure, 4 - Connecting plate, 5 - First collision surface, 6 - Boss, 7 - First plane, 8 - Second plane, 9 - Third plane, 10 - Second collision surface, 11 - Column collision surface, 12 - Shell, 13 - Feed port, 14 - Discharge port, 15 - Frame, 16 - Rotary drive structure, 17 - Feed pipe, 18 - Closed drive Structure, 19-Shell cooling channel, 20-Inlet of shell cooling channel, 21-Outlet of shell cooling channel, 22-Hammer seat, 23-Water inlet branch pipe, 24-Water inlet main pipe, 25-Water return branch pipe, 26-Water return main pipe, 27-Spindle, 28-Speed ​​sensor switch, 29-Temperature detection element, 30-Pressure detection element, 31-Observation port, 32-Gas inlet, 33-Top cover, 34-Middle section, 35-Base. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The purpose of this invention is to provide a fusion machine and fusion method to solve the problems existing in the prior art, which can effectively embed and fuse spherical graphite and improve the tap density of lithium battery anode materials.

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] like Figures 1 to 15 As shown, this embodiment provides a fusion machine 1000, including: a housing 12, a rotor structure 100, and a rotation drive structure 16. The housing 12 and the rotation drive structure 16 are both mounted on a frame 15. The housing 12 is provided with a feeding structure and a discharging structure. The feeding structure is provided with a feeding port 13, and the discharging structure is provided with a discharging port 14. The rotor structure 100 is disposed in the housing 12. The rotation drive structure 16 is used to drive the rotor structure 100 to rotate relative to the housing 12. Spherical graphite enters the housing 12 through the feeding port 13. The rotation drive structure 16 drives the rotor structure 100 to rotate. The collision between the spherical graphite and the rotor structure 100 and the housing 12 can realize the embedding and fusion of the spherical graphite.

[0043] In some specific embodiments, the rotor structure 100 includes a turntable 1, at least two collision blocks 2, and at least two column structures 3. The turntable 1 is a disc, and the collision blocks 2 are disposed on the outer side of the turntable 1. The collision blocks 2 are provided with a first collision surface 5, which is inclined. One end of the collision blocks 2 is connected to the turntable 1, and the connection method is not limited. One end of the column structure 3 is connected to the collision blocks 2, and the column structure 3 is provided with a column collision surface 11. During the rotation of the turntable 1, the collision blocks 2, and the column structure 3, the spherical graphite collides with the first collision surface 5, the column collision surface 11, and the shell 12, which can achieve the embedding and fusion of the spherical graphite. The rotor structure 100 of this embodiment can effectively embed and fuse spherical graphite, thereby improving the tap density of the lithium battery negative electrode material.

[0044] In some specific embodiments, the collision blocks 2 and the column structures 3 correspond one-to-one, and the number of collision blocks 2 and column structures 3 can be adjusted according to requirements. At least two collision blocks 2 are evenly arranged along the circumference of the turntable 1.

[0045] In some specific embodiments, the center line of the collision block 2 does not pass through the center of the turntable 1.

[0046] In some specific embodiments, the angle between the first collision surface 5 of each collision block 2 and the axis of the turntable 1 is the same, and when each collision block 2 rotates to the same position, each collision block 2 can overlap.

[0047] In some specific embodiments, the other end of the collision block is a second collision surface 10, which corresponds to the position of the column collision surface 11, and the column collision surface 11 is located above the second collision surface 10.

[0048] In some specific embodiments, the second collision surface 10 is a first arc-shaped surface, and the column collision surface 11 is a second arc-shaped surface. The first and second arc-shaped surfaces are located on the same circular arc surface, and the center and radius of the circles corresponding to each first arc-shaped surface are the same. That is, from a top view of the rotor structure 100, the first arc-shaped surface coincides with the corresponding second arc-shaped surface, and each first arc-shaped surface is located on the same circumference. The inner wall of the housing 12 is circular, and the distance between each second collision surface 10 and the inner wall of the housing 12, as well as the distance between each column collision surface 11 and the inner wall of the housing 12, are the same. That is, the circle containing the first arc-shaped surface and the circle containing the inner wall of the housing 12 are concentrically arranged. The distance between the second collision surface 10 and the inner wall of the housing 12, and the distance between each column collision surface 11 and the inner wall of the housing 12, are 1mm to 6mm.

[0049] In some specific embodiments, the collision block 2 further includes a first plane 7, a second plane 8, and a third plane 9. The first plane 7 and the second plane 8 are arranged opposite to each other, the third plane 9 and the first collision surface 5 are arranged opposite to each other, the third plane 9 and the first collision surface 5 are both connected to the first plane 7, the third plane 9 and the first collision surface 5 are both connected to the second plane 8, and the second collision surface 10 is connected to the first collision surface 5, the first plane 7, the second plane 8 and the third plane 9 respectively. The second collision surface 10 and the second plane 8 are connected by a rounded transition to adapt to the rounded corners of the housing 12.

[0050] In some specific embodiments, the first plane 7 and the second plane 8 are both arranged parallel to the turntable 1, the third plane 9 is arranged parallel to the first collision surface 5, and both the third plane 9 and the first collision surface 5 are arranged parallel to the center line of the collision block 2, such as... Figure 3 As shown, neither the third plane 9 nor the first collision surface 5 passes through the center of the turntable 1.

[0051] In some specific embodiments, the angle between the third plane 9 or the first collision surface 5 of the collision block 2 and the vertical plane is S, where S is between 15° and 25°.

[0052] In some specific embodiments, the lower end of the column structure 3 is connected to the first plane 7 of the collision block 2.

[0053] In some specific embodiments, the rotor structure 100 of this embodiment further includes a connecting plate 4, which is annular. The upper end of the column structure 3 is connected to the connecting plate 4, and the connecting plate 4 is arranged parallel to the turntable 1.

[0054] In some specific embodiments, a boss 6 is provided at the center of the turntable 1. The boss 6 is a frustum, and the angle between the side wall of the frustum and the lower surface of the frustum is P, where P is between 15° and 25°.

[0055] In some specific embodiments, the height of the rotor structure 100 is H, which is between 300mm and 450mm, the outer diameter of the rotor structure 100 is K, which is between 992mm and 995mm, and the ratio of K to H is between 2.5 and 3.

[0056] In some specific embodiments, the feeding structure and the rotor structure 100 are coaxially arranged; the housing 12 and the rotor structure 100 are coaxially arranged.

[0057] In some specific embodiments, the feeding structure includes a feeding pipe 17, which is coaxially arranged with the rotor structure 100. The feeding pipe 17 is located in the housing 12 and is a hollow pipe with openings at both ends. The upper end of the feeding pipe 17 is provided with a feeding port 13, and the lower end of the feeding pipe 17 is located above the boss 6. One end of the discharge structure is provided with an opening at the connection with the housing 12, and the other end of the discharge structure is provided with a discharge port 14. The discharge structure is provided with a sealing structure for closing and opening the opening. The sealing structure includes a sealing drive structure 18 and a sealing plate. The sealing drive structure 18 is a cylinder that can drive the sealing plate to move, so as to realize the opening and closing of the opening. When the opening is open, the spherical graphite can be discharged from the housing 12 through the opening and the discharge port 14.

[0058] In some specific embodiments, the housing 12 is an integral structure, or the housing 12 includes an upper cover 33, a middle section 34 and a base 35 arranged from top to bottom. A hammer seat 22 is provided on the middle section 34. The hammer seat 22 is used to set a hammer. The hammer is used to strike the housing 12 to prevent spherical graphite from adhering to the housing 12. A housing cooling channel 19 is provided in the side wall of the housing 12. Several housing cooling channels 19 can be arranged from top to bottom along the axial direction of the housing 12. For example, the upper cover 33, the middle section 34 and the base 35 are each provided with at least one housing cooling channel 19. When the upper cover 33, the middle section 34 or the base 35 are provided with at least two housing cooling channels 19, the adjacent housing cooling channels 19 are separated. A cooling medium is introduced into the housing cooling channel 19. The cooling medium is preferably water. The position of the inlet 20 of the housing cooling channel is lower than the position of the outlet 21 of the housing cooling channel. Each inlet is connected to the main return water pipe 26 via a return water branch pipe 25. The main return water pipe 26 is equipped with a return water temperature sensor and a return water pressure sensor. Each inlet is connected to the main inlet water pipe 24 via an inlet water branch pipe 23. The main inlet water pipe 24 is equipped with an inlet water temperature sensor and an inlet water pressure sensor. Both the main return water pipe 26 and the main inlet water pipe 24 have exhaust ports. The cooling medium enters each inlet water branch pipe 23 through the main inlet water pipe 24, and then enters the corresponding shell cooling channel 19 through each inlet to cool the shell 12. After moving through the shell cooling channel 19, it is discharged from the shell cooling channel outlet 21 and enters the main return water pipe 26 via the return water branch pipe 25. Both the main inlet water pipe 24 and the main return water pipe 26 can be connected to a water tank. A heat exchanger can be installed on the main return water pipe 26 to achieve heat exchange.

[0059] In some specific embodiments, the rotation drive structure 16 provides power for the rotation of the rotor structure and also has an overload protection function to ensure the safe operation of the equipment. The rotation drive structure 16 and the rotor structure 100 are connected by a main shaft 27. For example, the rotation drive structure 16 is a motor. The power output end of the motor is connected to the main shaft 27 through a transmission structure. The transmission structure includes a first pulley, a second pulley, and a transmission belt. The first pulley is located at the power output end of the motor, and the second pulley is located on the main shaft 27. The first pulley and the second pulley are connected by a belt drive. A bearing housing is provided on the outside of the main shaft 27 and is mounted on the frame 15. A bearing is provided between the main shaft 27 and the bearing housing. A bearing housing cooling sleeve is provided on the outside of the bearing housing. A bearing housing cooling channel is formed between the bearing housing and the bearing housing cooling sleeve. A cooling medium is introduced into the bearing housing cooling channel. The cooling medium is preferably water. The inlet and outlet of the bearing housing cooling sleeve are both connected to a water tank. The bearing housing cooling channel and the shell cooling channel 19 can share a water tank. By cooling the housing 12 and the bearing box, the conditions for embedding and fusing lithium battery anode materials are met.

[0060] In some specific embodiments, a speed sensing switch 28 is provided on the frame 15 to detect the speed of the spindle 27, and the controller can control the rotation drive structure 16 according to the speed detected by the speed sensing switch 28.

[0061] In some specific embodiments, the housing 12 is provided with a temperature detection element 29, a pressure detection element 30, an observation port 31, and a gas inlet 32. The temperature detection element 29 is used to detect the temperature inside the housing 12, the pressure detection element 30 is used to detect the pressure inside the housing 12, and the gas inlet 32 ​​is used to introduce a gas medium. After the spherical graphite has been fused, the gas medium is introduced into the housing 12 through the gas inlet 32, so that the spherical graphite can be discharged from the discharge port 14.

[0062] In some specific embodiments, a control panel is also included, which displays in real time the rotational speed of the rotor structure 100, the temperature of the housing 12, and the pressure of the housing 12.

[0063] like Figure 6 and Figure 7 As shown, when the fusion machine 1000 of this embodiment is used, the rotor structure 100 is placed in the housing 12 of the fusion machine 1000. The housing 12 of the fusion machine 1000 is provided with a feed port 13 and a discharge port 14. The rotation drive structure 16 of the fusion machine 1000 is used to drive the rotor structure 100 to rotate.

[0064] This invention employs mechanical force to efficiently and uniformly fuse natural graphite, resulting in a more environmentally friendly and energy-efficient process. A special rotor structure 100 optimizes the shape and arrangement angle of the collision blocks 2, achieving material fusion through high-speed collision and friction. The angle and shape of the collision blocks 2, along with the height of the rotor structure 100 and the rotational speed, embed smaller spherical graphite particles between the existing spherical graphite particles, increasing the tap density of the natural graphite. The fusion machine 1000 in this embodiment is a professional device integrating advanced technology and high efficiency, specifically designed to improve the tap density of lithium-ion battery anode materials. Through precise parameter control and the unique rotor structure 100 design, it ensures uniform embedding and fusion of lithium-ion battery anode materials in a short time, effectively improving production efficiency and product quality.

[0065] Example 2

[0066] This embodiment discloses a fusion method using the fusion machine 1000 of Embodiment 1, comprising: calculating the proportion of spherical graphite of various particle sizes according to the usage requirements of the prepared battery; placing the spherical graphite into the fusion machine 1000 through the feed inlet 13; after the spherical graphite contacts the boss 6, it moves to the periphery of the boss 6; and driving the rotor structure 100 to rotate through the rotation drive structure 16. Figure 3 The arrangement direction rotates counterclockwise. During the rotation of the rotor structure 100, the spherical graphite contacts the first collision surface 5 of the collision block 2, forming a vortex from bottom to top. After the spherical graphite moves to the highest point, it descends. Under the action of centrifugal force, the spherical graphite enters the gap between the column collision surface 11 and the shell 12, and the gap between the second collision surface 10 and the shell 12. The spherical graphite collides with the column collision surface 11, the shell 12, and the second collision surface 10. The spherical graphite continuously rises and falls from bottom to top in the fusion machine 1000. The spherical graphite collides with each other, and the smaller spherical graphite is embedded in the gap of the larger spherical graphite. After a period of rotation, the required compaction density is achieved.

[0067] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0068] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] If this invention discloses or relates to components or structural parts that are fixedly connected to each other, then, unless otherwise stated, a fixed connection can be understood as: a fixed connection that can be detached (e.g., using bolts or screws), or a fixed connection that cannot be detached (e.g., riveting, welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0070] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0071] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0072] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0073] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0074] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0075] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A fusion machine, characterized in that: include: The system comprises a housing, a rotor structure, and a rotation drive structure. The housing has a feeding structure and a discharging structure. The feeding structure has a feeding port, and the discharging structure has a discharging port. The rotor structure is disposed within the housing. The rotation drive structure drives the rotor structure to rotate relative to the housing. Spherical graphite enters the housing through the feeding port. The rotation drive structure drives the rotor structure to rotate. The spherical graphite collides with the rotor structure and the housing to achieve embedding and fusion of the spherical graphite.

2. The fusion machine according to claim 1, characterized in that: The rotor structure includes a turntable, at least two collision blocks, and at least two column structures. The rotation drive structure is connected to the turntable. The collision blocks are disposed on the outer side of the turntable and have a first collision surface. The first collision surface is inclined. One end of the collision block is connected to the turntable. One end of the column structure is connected to the collision block and has a column collision surface. During the rotation of the turntable, the collision blocks, and the column structures, the spherical graphite collides with the first collision surface, the column collision surface, and the shell to achieve the embedding and fusion of the spherical graphite.

3. The fusion machine according to claim 2, characterized in that: The center lines of the collision blocks do not pass through the center of the turntable; the angles between the first collision surface of each collision block and the axis of the turntable are all the same.

4. The fusion machine according to claim 2, characterized in that: The other end of the collision block is a second collision surface, which corresponds to the collision surface of the column. The second collision surface is a first arc-shaped surface, and the collision surface of the column is a second arc-shaped surface. The first arc-shaped surface and the second arc-shaped surface are located on the same arc surface, and the center and radius of the circles corresponding to each first arc-shaped surface are the same.

5. The fusion machine according to claim 1, characterized in that: The height of the rotor structure is H, the outer diameter of the rotor structure is K, and the ratio of K / H is between 2.5 and 3.

6. The fusion machine according to claim 1, characterized in that: The shell has a cooling channel inside its side wall, through which a cooling medium is introduced. The inlet of the cooling channel is lower than the outlet of the cooling channel.

7. The fusion machine according to claim 1, characterized in that: The rotation drive structure and the rotor structure are connected by a main shaft drive. A bearing housing is provided on the outside of the main shaft, and a bearing housing cooling channel is provided on the outside of the bearing housing. Cooling medium is introduced into the bearing housing cooling channel.

8. The fusion machine according to claim 1, characterized in that: The housing is provided with a temperature detection element, a pressure detection element, an observation port, and a gas inlet. The temperature detection element is used to detect the temperature inside the housing, and the pressure detection element is used to detect the pressure inside the housing.

9. The fusion machine according to claim 1, characterized in that: The feeding structure is coaxially arranged with the rotor structure; the housing is coaxially arranged with the rotor structure.

10. A fusion method using a fusion machine as described in any one of claims 1-9, characterized in that: include: Based on the usage requirements of the prepared battery, the proportion of spherical graphite of each particle size is calculated, and the spherical graphite is put into the shell through the feed port; After the spherical graphite enters the shell, it comes into contact with the rotor structure. Through the rotation drive structure, the rotor structure is driven to rotate. During the rotation of the rotor structure, the spherical graphite comes into contact with the rotor structure and forms a vortex from bottom to top. After the spherical graphite moves to the highest point, it descends. Under the action of centrifugal force, the spherical graphite enters the gap between the rotor structure and the shell. The spherical graphite collides with the rotor structure and the shell. The spherical graphite repeatedly rises and falls from bottom to top in the shell. The spherical graphite collides with each other, and the smaller spherical graphite is embedded in the gap of the larger spherical graphite until the required tap density is achieved.

Images