Disc type dispersion pump for single-walled carbon nanotube battery slurry

Abstract

The utility model belongs to the technical field of dispersion pumps, and particularly relates to a disc type dispersion pump for single-walled carbon nanotube battery slurry, which comprises a base, the top of the base is fixedly connected with a servo motor, and the rotating end of the servo motor is fixedly connected with a dispersion cavity; a dispersing disc driven by a servo motor is arranged in the dispersing cavity; a feeding hole is formed in the upper wall of the dispersing cavity above the dispersing disc; inner teeth, middle teeth and outer teeth which are concentrically distributed in an equal-tooth manner are sequentially arranged on the dispersion disc; according to the disc-type dispersion pump, the inner teeth, the middle teeth and the outer teeth which are concentrically distributed in an equal-tooth mode are arranged, gradient centrifugal force is formed by means of the diameter difference of different layers of teeth so as to cope with slurry materials with different surface energies, and the teeth and the outer teeth can disperse materials with high surface energies such as single-walled carbon nanotubes; meanwhile, the concentric equal-tooth arrangement can ensure the uniform stirring rotating speed, and the phenomenon that the agglomerated materials are blocked in the dispersion process and the dispersion efficiency is influenced is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of dispersion pump technology, specifically relating to a disc dispersion pump for single-walled carbon nanotube battery slurry. Background Technology

[0002] During the stirring and dispersion process of lithium-ion battery slurry, some active materials such as lithium iron phosphate and ternary materials are prone to forming hard agglomerates due to their high surface energy and strong van der Waals forces. The existing disc dispersion process used to disperse slurries containing multiple components has the defects of low dispersion efficiency and inability to fully and uniformly dissolve the materials. The existing disc dispersion pump has a dispersion efficiency of less than 80% for lithium iron phosphate battery slurry.

[0003] In particular, single-walled carbon nanotubes, when applied to battery slurries, can reach a surface area of ​​about 500 eV / μm, and the inter-tube van der Waals forces are also stronger than those of ordinary nanomaterials. This makes it easy for them to form tube bundles or entangled structures through adsorption during the dispersion process. Such agglomeration structures will seriously affect the dispersion uniformity of lithium battery slurries.

[0004] Therefore, overcoming the defect of uneven dispersion of lithium battery slurry containing single-walled carbon nanotubes by disc dispersion pumps is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one disc dispersion pump for single-walled carbon nanotube battery slurry.

[0007] In a first aspect, embodiments of this disclosure provide a disc-type dispersion pump for single-walled carbon nanotube battery slurry, comprising: a base, a servo motor fixedly connected to the top of the base, and a dispersion chamber fixedly connected to the rotating end of the servo motor; a dispersion disc driven by the servo motor is disposed inside the dispersion chamber, and a feeding port is opened on the upper wall of the dispersion chamber above the dispersion disc; and inner teeth, middle teeth and outer teeth are arranged concentrically and equally distributed on the dispersion disc.

[0008] In one optional embodiment, the inter-ring spacing between the internal teeth and the middle teeth ranges from 2 to 5 mm.

[0009] In one optional embodiment, the pitch between the middle and outer teeth ranges from 2 to 4 mm.

[0010] In one alternative embodiment, the number of teeth per ring of the dispersing disc is 18 to 36.

[0011] In one optional embodiment, the outer tooth diameter of the dispersing disc ranges from 100 to 200 mm.

[0012] In one alternative embodiment, the thickness of the internal teeth ranges from 1.5 to 2.5 mm.

[0013] In one alternative embodiment, the thickness of the middle tooth ranges from 2 to 2.5 mm.

[0014] In one alternative embodiment, the thickness of the external teeth ranges from 2 to 3 mm.

[0015] In one alternative embodiment, the inner diameter of the dispersing disc ranges from 8 to 35 mm.

[0016] In one optional embodiment, an observation port is provided on the side wall of the dispersion chamber.

[0017] The beneficial effects of this invention are that the disc dispersion pump for single-walled carbon nanotube battery slurry uses concentrically distributed inner, middle, and outer teeth to create a gradient centrifugal force by utilizing the diameter difference of different layers of teeth. This is to cope with slurry materials with different surface energies. The inner and outer teeth can disperse materials with high surface energy, such as single-walled carbon nanotubes. At the same time, the concentrically distributed teeth can ensure a uniform stirring speed and avoid clogging of agglomerated materials during the dispersion process, which would affect the dispersion efficiency.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a dispersion disk provided in an embodiment of the present disclosure;

[0022] Figure 2This is a schematic diagram of the structure of a disc dispersion pump for single-walled carbon nanotube battery slurry provided in an embodiment of the present disclosure;

[0023] Figure 3 This is a schematic diagram of the structure of a disc dispersion pump for single-walled carbon nanotube battery slurry provided in an embodiment of this disclosure.

[0024] In the picture:

[0025] 100, base; 200, servo motor; 300, dispersion chamber; 310, feeding port; 320, dispersion disc; 321, internal teeth; 322, middle teeth; 323, external teeth; 330, observation port. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0028] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0029] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] Please see Figure 1-3 As shown in the figure, this disclosure provides a disc dispersion pump for single-walled carbon nanotube battery slurry, including: a base 100, a servo motor 200 fixedly connected to the top of the base 100, and a dispersion chamber 300 fixedly connected to the rotating end of the servo motor 200; a dispersion disc 320 driven by the servo motor 200 is provided in the dispersion chamber 300, and a feeding port 310 is opened on the upper wall of the dispersion chamber 300 above the dispersion disc 320; the dispersion disc 320 is provided with concentric and equally distributed inner teeth 321, middle teeth 322 and outer teeth 323 in sequence.

[0033] Specifically, concentric tooth distribution is used to avoid material blockage. Therefore, an approximately concentric tooth distribution can also achieve a similar effect. When the center deviation is no more than 1 mm or the tooth angle deviation is no more than 5°, it can also be regarded as a concentric tooth distribution.

[0034] In some embodiments, specifically, the inter-ring spacing between the internal teeth and the middle teeth ranges from 2 to 5 mm.

[0035] In some embodiments, specifically, the inter-ring spacing between the middle teeth and the outer teeth ranges from 2 to 4 mm.

[0036] In some embodiments, specifically, the number of teeth per ring of the dispersing disc is 18 to 36, preferably 18, 20, 24, 30, and 36.

[0037] In some embodiments, specifically, the outer tooth diameter of the dispersion disc ranges from 100 to 200 mm, preferably 100 mm, 120 mm, 150 mm, 180 mm, and 200 mm.

[0038] In some embodiments, specifically, the thickness of the internal teeth ranges from 1.5 to 2.5 mm, preferably 1.5 mm, 2 mm, and 2.5 mm.

[0039] In some embodiments, specifically, the thickness of the middle tooth ranges from 2 to 2.5 mm, preferably 2 mm and 2.5 mm.

[0040] In some embodiments, specifically, the thickness of the external teeth ranges from 2 to 3 mm, preferably 2 mm, 2.5 mm, and 3 mm.

[0041] In some embodiments, specifically, the inner diameter of the dispersing disc ranges from 8 to 35 mm, preferably 8 mm, 10 mm, 12 mm, and 35 mm.

[0042] Specifically, the dispersion disc is made of 304 steel, and the inner, middle and outer teeth arranged in sequence can effectively disperse lithium iron phosphate materials, conductive agents, binders and other additives, overcome the surface energy differences of different materials, and improve the dispersion efficiency to no less than 90%.

[0043] In some embodiments, specifically, an observation port 330 is provided on the side wall of the dispersion chamber, which is provided with a transparent window for real-time observation of the stirring and dispersion process.

[0044] In summary, this disc dispersion pump for single-walled carbon nanotube battery slurry utilizes concentrically distributed inner, middle, and outer teeth to create a gradient centrifugal force based on the diameter differences of different tooth layers. This is effective for dispersing slurry materials with different surface energies. The inner and outer teeth can disperse materials with high surface energy, such as single-walled carbon nanotubes, while the concentric arrangement of the teeth ensures a uniform stirring speed, preventing blockage of agglomerated materials during dispersion and thus improving dispersion efficiency.

[0045] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A disc dispersion pump for single-walled carbon nanotube battery slurry, characterized by, include: A base (100) is fixedly connected to the top of the base (100), and a servo motor (200) is fixedly connected to the rotating end of the servo motor (200). The dispersion chamber (300) is provided with a dispersion disk (320) driven by a servo motor (200), and a feeding port (310) is provided on the upper wall of the dispersion chamber (300) above the dispersion disk (320). The dispersion disk (320) is provided with concentric and equally distributed inner teeth (321), middle teeth (322) and outer teeth (323).

2. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The spacing between the internal and middle teeth ranges from 2 to 5 mm.

3. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The spacing between the middle and outer teeth ranges from 2 to 4 mm.

4. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The number of teeth per ring of the dispersion disc is 18 to 36.

5. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The diameter of the outer teeth of the dispersion disc ranges from 100 to 200 mm.

6. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The thickness of the internal teeth ranges from 1.5 to 2.5 mm.

7. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The thickness of the intermediate teeth ranges from 2 to 2.5 mm.

8. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The thickness of the external teeth ranges from 2 to 3 mm.

9. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, The inner diameter of the dispersion disc ranges from 8 to 35 mm.

10. The disc dispersion pump for single-walled carbon nanotube battery slurry as described in claim 1, characterized in that, An observation port (330) is provided on the side wall of the dispersion chamber (300).

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