Lithium battery carbon foil coating slurry preparation equipment

By introducing a crushing and stirring mechanism into the lithium battery carbon foil coating slurry preparation equipment, the problem of carbon foil coating raw material agglomeration was solved, automatic crushing of large-particle raw materials and fast and efficient slurry preparation were achieved, thereby improving the uniformity of the coating and the performance of the lithium battery.

CN223381701UActive Publication Date: 2025-09-26SICHUAN NATUO NEW MATERIALS TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422108545.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-09-26
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

Existing equipment for preparing lithium battery carbon foil slurry easily forms agglomerates during the stirring and mixing process, making it difficult to crush large particles in the carbon foil raw materials, affecting the coating uniformity and lithium battery quality.

Method used

A lithium battery carbon foil slurry preparation equipment including a crushing mechanism and a stirring mechanism was designed. The large particles of raw materials were crushed by crushing rollers and arc blocks, and the carbon foil raw materials and solution were quickly and fully stirred by multiple stirring blades to ensure uniform mixing.

Benefits of technology

The automatic crushing of large particles in the carbon foil raw material and the rapid and efficient slurry preparation are realized, which improves the uniformity of the coating and the quality of the lithium battery.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223381701U_ABST
    Figure CN223381701U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of slurry preparation equipment, and discloses lithium battery carbon foil coating slurry preparation equipment, which comprises a shell, a carbon foil coating device, a lithium battery carbon foil coating device and a lithium battery carbon foil coating device, part of the crushing mechanism is arranged outside the crushing barrel, and part of the crushing mechanism extends into the crushing barrel; and the crushing mechanism comprises a driving motor, the right side of the driving motor is fixedly connected with the left side of the crushing barrel, the driving motor is located in the shell, and the other end of an output shaft of the driving motor is fixedly connected with a rotating shaft in a sleeving mode. Through the arrangement of the driving motor, the rotating block, the crushing roller and the arc-shaped block, when the driving motor runs, the rotating shaft drives the crushing roller to rotate through the rotating block, and due to the design of the arc-shaped block, the crushing roller is matched with the arc-shaped block to crush large-particle raw materials in the crushing barrel; and therefore, the effect of automatically crushing the large-particle raw materials in the carbon foil coating raw materials is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of slurry preparation equipment, and more specifically, to a slurry preparation equipment for lithium battery carbon foil coating. Background Art

[0002] Lithium batteries use lithium metal or lithium alloys as anode materials and non-aqueous electrolyte solutions. With the development of microelectronics technology, the number of miniaturized devices has increased, placing high demands on power sources. Lithium batteries are widely used in many areas due to their excellent performance in many aspects.

[0003] When operators process lithium batteries, they often evenly apply carbon foil slurry to the positive or negative electrode of the lithium battery, so that a current collector functional carbon foil can be formed on the conductive current collector substrate. The current collector functional carbon foil can effectively improve and optimize the performance of the lithium battery. At the same time, the carbon foil slurry can also improve the mechanical strength and stability of the current collector, and extend the service life of the lithium-ion battery. In actual use, the existing lithium battery carbon foil slurry preparation equipment has the function of stirring and mixing the carbon foil raw material and the solution. However, since the carbon foil raw material is often in dry powder form, this causes the carbon foil raw material to easily form lumps, and large particles of raw materials may be mixed in the carbon foil raw material, which will reduce the quality of the prepared slurry, affect the uniformity of the subsequent coating, and further reduce the quality of the lithium battery, which brings inconvenience to the operator's operation and use, so it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a lithium battery carbon foil slurry preparation device, which has the advantage of automatically crushing large particles of carbon foil raw materials.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium battery carbon foil slurry preparation device, comprising:

[0006] An outer shell, wherein a crushing barrel is fixedly installed inside the top end of the outer shell;

[0007] A crushing mechanism, wherein the crushing mechanism is partially disposed outside the crushing barrel and partially extends into the crushing barrel;

[0008] In which, the crushing mechanism includes a driving motor, the right side of the driving motor is fixedly connected to the left side of the crushing barrel, the driving motor is located inside the shell, the other end of the output shaft of the driving motor is fixedly sleeved with a rotating shaft, the other end of the rotating shaft passes through the left side of the crushing barrel and extends to the interior of the crushing barrel, the outer surface of the rotating shaft located inside the crushing barrel is fixedly installed with a rotating block, the other end of the rotating block is fixedly installed with a crushing roller, the outer surface of the crushing roller is movably sleeved with the interior of the crushing barrel, the outer surface of the crushing roller is movably connected with an arc block, and the outer surface of the arc block is fixedly connected to the interior of the crushing barrel.

[0009] As an optimal technical solution of the present invention, a filter is fixedly installed at the bottom end of the crushing barrel, the outer surface of the filter is fixedly connected to the outer surface of the arc block, and the outer surface of the filter is movably connected to the outer surface of the crushing roller.

[0010] As a preferred technical solution of the present invention, a mixing barrel is fixedly sleeved inside the shell, a discharge port is fixedly sleeved inside the bottom end of the mixing barrel, and a control valve is installed on the discharge port.

[0011] As an optimal technical solution of the present invention, a fixed plate is fixedly sleeved on the top of the mixing barrel, a power motor is fixedly installed on the top of the fixed plate, and a rotating shaft is fixedly sleeved on the other end of the output shaft of the power motor, and the bottom end of the rotating shaft passes through the top of the fixed plate and extends to the interior of the mixing barrel.

[0012] As a preferred technical solution of the present invention, the outer surface of the rotating shaft located inside the mixing barrel is fixedly sleeved with a first mixing blade.

[0013] As an optimal technical solution of the present invention, a long plate is fixedly installed on the bottom end of the fixed plate, the interior of the long plate is movably connected to the outer surface of the rotating shaft, and the top end of the long plate is movably connected to a driving wheel, and the interior of the driving wheel is fixedly connected to the outer surface of the rotating shaft.

[0014] As a preferred technical solution of the present invention, both left and right sides of the top end of the longboard are movably connected with driven wheels, and the driven wheels are connected to the driving wheels through a transmission belt.

[0015] As a preferred technical solution of the present invention, a long shaft is fixedly sleeved inside the driven wheel, and the bottom end of the long shaft passes through the top end of the long plate and extends to the interior of the mixing barrel.

[0016] As a preferred technical solution of the present invention, the outer surface of the long axis located inside the mixing barrel is fixedly sleeved with a second mixing blade, and the second mixing blade is made of metal.

[0017] As a preferred technical solution of the present invention, a fixing ring is fixedly installed on the bottom end of the mixing barrel, a support rod is fixedly installed on the bottom end of the fixing ring, and a base is fixedly installed on the bottom end of the support rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The utility model is provided with a driving motor, a rotating block, a crushing roller and an arc block. When the driving motor is running, the rotating shaft will drive the crushing roller to rotate through the rotating block. Due to the design of the arc block, the crushing roller will cooperate with the arc block to crush the large particles of raw materials inside the crushing barrel, thereby achieving the effect of automatically crushing the large particles of raw materials in the carbon-coated foil raw materials.

[0020] 2. The utility model is provided with a rotating shaft, a first stirring blade, a driven wheel and a second stirring blade. When the power motor is running, the rotating shaft will simultaneously drive the driving wheel and the four first stirring blades to rotate. At this time, the driving wheel will drive the two driven wheels to rotate through two transmission belts. Then the two driven wheels will drive the eight second stirring blades to rotate through two long shafts. At this time, the four first stirring blades and the eight second stirring blades will quickly and fully stir the carbon-coated foil raw material and the solution during rotation, thereby achieving the effect of quickly and efficiently preparing the carbon-coated foil slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the long shaft of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the power motor of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the filter screen of the utility model;

[0027] Figure 7 This is a structural diagram of the arc block of the utility model.

[0028] In the figure: 1. Outer shell; 2. Crushing barrel; 3. Filter; 4. Driving motor; 5. Rotating shaft; 6. Rotating block; 7. Crushing roller; 8. Arc block; 9. Mixing barrel; 10. Discharge port; 11. Fixed plate; 12. Power motor; 13. Rotating shaft; 14. First stirring blade; 15. Long plate; 16. Driving wheel; 17. Driven wheel; 18. Transmission belt; 19. Long shaft; 20. Second stirring blade; 21. Fixed ring; 22. Support rod; 23. Base. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 7 As shown, the utility model provides a lithium battery carbon foil slurry preparation device, including:

[0031] The outer shell 1 has a crushing barrel 2 fixedly mounted on the top of the outer shell 1;

[0032] The crushing mechanism is partially arranged outside the crushing barrel 2 and partially extends into the crushing barrel 2;

[0033] Among them, the crushing mechanism includes a driving motor 4, the right side of the driving motor 4 is fixedly connected to the left side of the crushing barrel 2, the driving motor 4 is located inside the outer shell 1, and the other end of the output shaft of the driving motor 4 is fixedly sleeved with a rotating shaft 5. The other end of the rotating shaft 5 passes through the left side of the crushing barrel 2 and extends to the interior of the crushing barrel 2. The outer surface of the rotating shaft 5 located inside the crushing barrel 2 is fixedly installed with a rotating block 6, and the other end of the rotating block 6 is fixedly installed with a crushing roller 7. The outer surface of the crushing roller 7 is movably sleeved with the interior of the crushing barrel 2, and the outer surface of the crushing roller 7 is movably connected with an arc block 8. The outer surface of the arc block 8 is fixedly connected to the interior of the crushing barrel 2.

[0034] When the driving motor 4 is running, the rotating shaft 5 will drive the crushing roller 7 to rotate through the rotating block 6. At this time, the crushing roller 7 will cooperate with the arc block 8 to crush the large particles of carbon-coated foil raw materials during rotation.

[0035] Among them, a filter screen 3 is fixedly installed at the bottom end of the crushing barrel 2, the outer surface of the filter screen 3 is fixedly connected to the outer surface of the arc block 8, and the outer surface of the filter screen 3 is movably connected to the outer surface of the crushing roller 7.

[0036] Due to the design of the filter screen 3, a good filtering effect can be achieved on large particles of carbon-coated foil raw materials.

[0037] The outer shell 1 has a mixing barrel 9 fixedly sleeved therein, and the bottom of the mixing barrel 9 has a discharge port 10 fixedly sleeved therein, and a control valve is installed on the discharge port 10 .

[0038] Due to the design of the discharge port 10 , the carbon-coated foil slurry prepared in the mixing barrel 9 can be discharged.

[0039] Among them, a fixed plate 11 is fixedly sleeved on the top of the mixing barrel 9, a power motor 12 is fixedly installed on the top of the fixed plate 11, and a rotating shaft 13 is fixedly sleeved on the other end of the output shaft of the power motor 12. The bottom end of the rotating shaft 13 passes through the top of the fixed plate 11 and extends to the inside of the mixing barrel 9.

[0040] When the power motor 12 is running, the rotating shaft 13 will rotate.

[0041] The outer surface of the rotating shaft 13 located inside the mixing barrel 9 is fixedly sleeved with a first mixing blade 14 .

[0042] When the rotating shaft 13 rotates, the four first stirring blades 14 will rotate driven by the rotating shaft 13. Due to the design of the four first stirring blades 14, when the four first stirring blades 14 rotate, the carbon-coated foil raw material and the solution inside the stirring barrel 9 are stirred and mixed.

[0043] Among them, a long plate 15 is fixedly installed at the bottom end of the fixed plate 11, and the interior of the long plate 15 is movably connected to the outer surface of the rotating shaft 13. The top end of the long plate 15 is movably connected to a driving wheel 16, and the interior of the driving wheel 16 is fixedly connected to the outer surface of the rotating shaft 13.

[0044] When the rotating shaft 13 rotates, the driving wheel 16 will rotate driven by the rotating shaft 13 .

[0045] The left and right sides of the top of the long board 15 are movably connected to driven wheels 17 , and the driven wheels 17 are connected to the driving wheel 16 through a transmission belt 18 .

[0046] When the driving wheel 16 rotates, the driving wheel 16 drives the two driven wheels 17 to rotate via the two transmission belts 18 .

[0047] A long shaft 19 is fixedly sleeved inside the driven wheel 17 , and the bottom end of the long shaft 19 passes through the top end of the long plate 15 and extends to the inside of the mixing barrel 9 .

[0048] When the two driven wheels 17 rotate, the two long shafts 19 will rotate driven by the two driven wheels 17 .

[0049] The outer surface of the long axis 19 located inside the mixing barrel 9 is fixedly sleeved with a second mixing blade 20 , and the second mixing blade 20 is made of metal.

[0050] When the two long shafts 19 rotate, the two long shafts 19 will respectively drive the eight second stirring blades 20 to rotate. Due to the design of the eight second stirring blades 20, when the eight second stirring blades 20 rotate, the carbon-coated foil raw material and the solution inside the stirring barrel 9 will be stirred and mixed.

[0051] A fixing ring 21 is fixedly mounted on the bottom end of the mixing barrel 9 , a support rod 22 is fixedly mounted on the bottom end of the fixing ring 21 , and a base 23 is fixedly mounted on the bottom end of the support rod 22 .

[0052] Due to the design of the fixing ring 21, the support rod 22 and the base 23, the mixing barrel 9 as a whole can be well supported, so that the mixing barrel 9 as a whole can be placed stably on the ground.

[0053] The working principle and use process of this utility model:

[0054] First, the operator pours the carbon-coated foil raw material into the inside of the crushing barrel 2, and then the operator starts the drive motor 4. At this time, the rotating shaft 5 will drive the several rotating blocks 6 to rotate, and then the crushing roller 7 will rotate inside the crushing barrel 2 under the drive of the several rotating blocks 6. Due to the design of the several arc blocks 8, the crushing roller 7 will cooperate with the several arc blocks 8 during rotation to crush the large particles and agglomerated materials in the carbon-coated foil raw material, thereby realizing the function of automatically crushing the large particles in the carbon-coated foil raw material. At the same time, the carbon-coated foil raw material smaller than the mesh diameter of the filter 3 will pass through the mesh of the filter 3 and fall into the inside of the mixing barrel 9.

[0055] When all the carbon-coated foil raw materials inside the crushing barrel 2 fall into the interior of the mixing barrel 9, the operator adds the solution to the interior of the mixing barrel 9, and then the operator starts the power motor 12. At this time, the rotating shaft 13 will drive the four first stirring blades 14 to rotate at the same time. Due to the design of the four first stirring blades 14, when the four first stirring blades 14 rotate, the carbon-coated foil raw materials and the solution inside the mixing barrel 9 will be stirred and mixed. At the same time, the rotating shaft 13 will drive the driving wheel 16 to rotate. When the driving wheel 16 rotates, it will drive the two driven wheels 17 to rotate through two transmission belts 18. Then the two driven wheels 17 will respectively drive the two long shafts 19 to rotate. At this time, the two long shafts 19 will respectively drive the eight second stirring blades 20 to rotate. Due to the design of the eight second stirring blades 20, the carbon-coated foil raw materials and the solution inside the mixing barrel 9 will be quickly and fully stirred and mixed in the rotation of the four first stirring blades 14 and the eight second stirring blades 20, thereby realizing the function of quickly and efficiently preparing carbon-coated foil slurry.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery carbon foil slurry preparation device, characterized in that: Includes: A housing (1), wherein a crushing barrel (2) is fixedly mounted inside the top end of the housing (1); A pulverizing mechanism, wherein the pulverizing mechanism is partially arranged outside the pulverizing barrel (2) and partially extends into the interior of the pulverizing barrel (2); The crushing mechanism comprises a driving motor (4), the right side of the driving motor (4) is fixedly connected to the left side of the crushing barrel (2), the driving motor (4) is located inside the housing (1), the other end of the output shaft of the driving motor (4) is fixedly sleeved with a rotating shaft (5), the other end of the rotating shaft (5) passes through the left side of the crushing barrel (2) and extends into the interior of the crushing barrel (2), the outer surface of the rotating shaft (5) located inside the crushing barrel (2) is fixedly mounted with a rotating block (6), the other end of the rotating block (6) is fixedly mounted with a crushing roller (7), the outer surface of the crushing roller (7) is movably sleeved with the interior of the crushing barrel (2), the outer surface of the crushing roller (7) is movably connected with an arc block (8), and the outer surface of the arc block (8) is fixedly connected to the interior of the crushing barrel (2).

2. The lithium battery carbon foil slurry preparation device according to claim 1, characterized in that: A filter screen (3) is fixedly mounted on the bottom end of the crushing barrel (2); the outer surface of the filter screen (3) is fixedly connected to the outer surface of the arc block (8); and the outer surface of the filter screen (3) is movably connected to the outer surface of the crushing roller (7).

3. The lithium battery carbon foil slurry preparation device according to claim 1, characterized in that: A stirring barrel (9) is fixedly sleeved inside the outer shell (1), a discharge port (10) is fixedly sleeved inside the bottom end of the stirring barrel (9), and a control valve is installed on the discharge port (10).

4. The lithium battery carbon foil slurry preparation device according to claim 3, characterized in that: A fixed plate (11) is fixedly sleeved on the top of the interior of the mixing barrel (9), a power motor (12) is fixedly mounted on the top of the fixed plate (11), a rotating shaft (13) is fixedly sleeved on the other end of the output shaft of the power motor (12), and the bottom end of the rotating shaft (13) passes through the top of the fixed plate (11) and extends into the interior of the mixing barrel (9).

5. The lithium battery carbon foil slurry preparation device according to claim 4, characterized in that: The outer surface of the rotating shaft (13) located inside the stirring barrel (9) is fixedly sleeved with a first stirring blade (14).

6. The lithium battery carbon foil slurry preparation device according to claim 4, characterized in that: A long plate (15) is fixedly mounted on the bottom end of the fixed plate (11), the interior of the long plate (15) is movably sleeved with the outer surface of the rotating shaft (13), and a driving wheel (16) is movably connected to the top end of the long plate (15), the interior of the driving wheel (16) is fixedly sleeved with the outer surface of the rotating shaft (13).

7. The lithium battery carbon foil slurry preparation device according to claim 6, characterized in that: The left and right sides of the top of the long board (15) are both movably connected to driven wheels (17), and the driven wheels (17) are transmission-connected to the driving wheels (16) via a transmission belt (18).

8. The lithium battery carbon foil slurry preparation device according to claim 7, characterized in that: A long shaft (19) is fixedly sleeved inside the driven wheel (17), and the bottom end of the long shaft (19) passes through the top end of the long plate (15) and extends to the inside of the mixing barrel (9).

9. The lithium battery carbon foil slurry preparation device according to claim 8, characterized in that: The outer surface of the long shaft (19) located inside the stirring barrel (9) is fixedly sleeved with a second stirring blade (20), and the second stirring blade (20) is made of metal.

10. The lithium battery carbon foil slurry preparation device according to claim 3, characterized in that: A fixing ring (21) is fixedly mounted on the bottom end of the mixing barrel (9), a support rod (22) is fixedly mounted on the bottom end of the fixing ring (21), and a base (23) is fixedly mounted on the bottom end of the support rod (22).