Auxiliary compaction and segmentation device for material sintering
By designing material sintering auxiliary compaction and division device, the driving part and the division part are used to compact and divide the positive electrode material of the lithium-ion battery, which solves the problems of insufficient sintering and difficulty in gas discharge, and achieves efficient production and excellent battery performance.
Patent Information
- Application Number
- CN202421432721.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The sintering of the positive electrode material of traditional lithium-ion batteries leads to poor battery performance, and material loss and dust problems occur during the uniform tiling process. The lithium salt is not in sufficient contact with the precursor components, making it difficult for gas to be discharged during the sintering process.
A material sintering auxiliary compaction and division device is designed, including a seat body and a compacting dividing member. The material is compacted and divided through the driving part and the dividing part to avoid losses and dust problems caused by the vibration uniform process, and ensure that the material is in full contact and gas discharge.
It realizes efficient compaction and division of materials, solves the problems of insufficient sintering, high material looseness and difficulty in gas discharge, and improves the production efficiency and battery performance of the battery positive electrode material.
Smart Images
Figure CN222837356U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production equipment, in particular to a material sintering auxiliary compaction and segmentation device. Background Art
[0002] Lithium-ion batteries are widely used in new energy vehicles, computers, mobile phones and other products. Positive electrode materials are an important component of lithium-ion batteries, such as lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, ternary, lithium-rich manganese-based positive electrode materials. Positive electrode materials are crucial to battery performance. Their production mainly adopts high-temperature solid-phase process, and the sintering process is the most core part.
[0003] Before the positive electrode material enters the furnace for sintering, it needs to be loaded into the bowl. Small piles will be formed during loading. The current common method is to spread the material flat by vibrating it. This process will cause material loss and dust problems, and the material after vibration is still in a loose state. The precursor and the lithium salt components cannot be fully in contact, which is not conducive to the diffusion of lithium salt into the precursor, resulting in insufficient sintering. The positive electrode material sintered in this way is difficult to achieve better battery performance.
[0004] The material laid flat by the vibration operation is in a whole block, and the contact between the surface and bottom of the sagger and the gas is quite different. The probability of the bottom material contacting the gas reactant is small, and the material in the same sagger may have poor consistency. On the other hand, the gas products such as CO2 generated at the bottom during sintering are difficult to discharge, which inhibits the forward progress of the sintering reaction, resulting in insufficient sintering, thereby affecting the material production efficiency. Utility Model Content
[0005] The utility model provides a material sintering auxiliary compacting and dividing device, aiming to solve the problems of insufficient sintering of battery positive electrode materials and difficulty in exhausting generated gas in traditional technologies.
[0006] In view of the problems existing in the prior art, the embodiment of the utility model provides a material sintering auxiliary compaction and segmentation device, comprising:
[0007] The base body includes a first plate body and a second plate body which are arranged opposite to each other in the vertical direction, and the second plate body is used for placing the material sagger;
[0008] The compacting and dividing part is arranged on the first plate body, and comprises a driving part and a dividing part. The driving part drives and connects the dividing part so that the dividing part has an active stroke approaching or moving away from the second plate body. The dividing part is used to compact and divide the material in the process of approaching the material sagger.
[0009] According to the material sintering auxiliary compaction and splitting device provided by the utility model, the driving part includes a driving cylinder arranged on the first plate body, and the splitting part is arranged at the end of the driving cylinder.
[0010] According to a material sintering auxiliary compaction and dividing device provided by the utility model, the dividing part includes a mounting plate and a dividing plate, the mounting plate is arranged at the end of the driving cylinder, and the dividing plate is arranged on one side of the mounting plate; the dividing plate is used to extend into the material sagger, and the mounting plate is used to cover the opening of the material sagger.
[0011] According to the material sintering auxiliary compaction and segmentation device provided by the utility model, the segmentation plates include a plurality of segments, and the segmentation plates are cross-arranged.
[0012] According to a material sintering auxiliary compaction and segmentation device provided by the utility model, the segmentation plate comprises a first segmentation plate and a second segmentation plate, and the first segmentation plate and the second segmentation plate are perpendicular to each other.
[0013] According to a material sintering auxiliary compaction and segmentation device provided by the utility model, the first segmentation plate and the second segmentation plate each include a plurality of plates, each of the first segmentation plates is arranged parallel to each other, and each of the second segmentation plates is arranged parallel to each other.
[0014] According to the material sintering auxiliary compaction and splitting device provided by the utility model, a spring is sleeved on the driving end of the driving cylinder, one end of the spring abuts against the driving cylinder, and the other end abuts against the mounting plate.
[0015] According to the material sintering auxiliary compaction and splitting device provided by the utility model, a conveyor belt is provided on the second plate body, the conveyor belt extends along the length direction of the second plate body, and the conveyor belt is used to convey the material sagger.
[0016] According to the material sintering auxiliary compaction and segmentation device provided by the utility model, a sensor is provided on the segmentation part, the sensor is used to sense the incoming material from the material sagger, and the sensor is electrically connected to the driving part.
[0017] According to the material sintering auxiliary compaction and segmentation device provided by the utility model, the seat body also includes a support rod connected between the first plate body and the second plate body.
[0018] The material sintering auxiliary compaction and splitting device provided by the utility model can compact and split the material by setting a driving part and a splitting part, which can avoid the material loss and dust problems generated during the vibration or leveling process; it can also solve the problem of high material looseness and insufficient contact between lithium salt and precursor components; it can also solve the problem that the bottom of the whole material is not in sufficient contact with the air and the reaction gas is difficult to discharge. The integrated device is simple and easy to operate, has low operating costs and high working efficiency. It is helpful to achieve efficient production of battery positive electrode materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a structural schematic diagram of the material sintering auxiliary compaction and segmentation device provided by the utility model;
[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the compaction splitter.
[0022] Figure numerals: 1. base body; 11. first plate body; 12. second plate body; 13. support rod; 14. conveyor belt; 2. compaction dividing piece; 21. driving part; 22. dividing part; 221. mounting plate; 222. first dividing plate; 223. second dividing plate; 23. spring; 3. material sagger. DETAILED DESCRIPTION
[0023] The following is a further detailed description of the implementation methods of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the embodiments of the utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0024] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Combine the following Figure 1-Figure 2 The utility model describes a material sintering auxiliary compacting and dividing device.
[0029] In view of the problem of insufficient sintering of battery positive electrode materials in traditional technology, please refer to Figure 1 An embodiment of the utility model provides a material sintering auxiliary compaction and splitting device, including a base body 1 and a compaction and splitting piece 2.
[0030] The base body 1 includes a first plate body 11 and a second plate body 12 which are arranged opposite to each other in the vertical direction. The second plate body 12 is used to place a material sagger 3, and the material sagger 3 contains a positive electrode material of a battery. The compacting and dividing member 2 is provided on the first plate body 11, a driving part 21 and a dividing part 22. The driving part 21 drives and connects the dividing part 22 so that the dividing part 22 has a movable stroke approaching or moving away from the second plate body 12. The dividing part 22 can compact and divide the material in the process of approaching the material sagger 3.
[0031] It should be noted that in the conventional technology, when the positive electrode material is flattened and vibrated, the material is in a loose state after the vibration, and the precursor and the lithium salt component are not in sufficient contact, which is not conducive to the diffusion of lithium salt into the precursor; after the material is flattened, it is in a block shape, and the probability of contact between the surface and bottom materials of the sagger and the gas reactant is different, and the probability of the bottom material contacting the gas is relatively small; and the sintering process will produce gas, and the gas generated at the bottom is difficult to discharge, which inhibits the forward progress of the sintering reaction. The material sintering auxiliary compaction and segmentation device provided by the utility model can compact and segment the material by setting a driving part 21 and a segmentation part 22, which can avoid the material loss and dust problems generated during the vibration or leveling process; it can also solve the problem of high material looseness and insufficient contact between the lithium salt and the precursor component; it can also solve the problem that the bottom of the whole block of material is not in sufficient contact with the air and the reaction gas is difficult to discharge. The integrated device is simple and easy to operate, has low operating cost and high work efficiency. It is helpful to achieve efficient production of battery positive electrode materials.
[0032] Specifically, see Figure 2 , the driving part 21 includes a driving cylinder provided on the first plate body 11, and the dividing part 22 is provided on the end of the driving cylinder. The driving cylinder drives the connecting dividing part 22 so that the dividing part 22 has a movable stroke close to or away from the second plate body 12. In an optional embodiment, the dividing part 22 includes a mounting plate 221 and a dividing plate, the mounting plate 221 is provided on the end of the driving cylinder, and the dividing plate is provided on one side of the mounting plate 221. It should be noted that the material sagger 3 has an opening, generally in the shape of a square box, the dividing plate is used to extend into the material sagger 3 to cut the material, and the mounting plate 221 is used to cover the opening of the material sagger 3 and abut against the material to compact the material. In this way, the material can be compacted to prevent material dust, and the material can also be divided to improve the subsequent sintering effect.
[0033] In order to improve the dividing effect of the material, the material can be divided into as many blocks as possible, and the dividing plates include multiple dividing plates, and each dividing plate is arranged crosswise. The divided material blocks can have the same specifications and shapes, or different specifications and shapes, depending on the setting form of the dividing plate, and the utility model does not limit this. In an optional embodiment, the dividing plate includes a first dividing plate 222 and a second dividing plate 223, and the first dividing plate 222 and the second dividing plate 223 are perpendicular to each other, so that the material blocks can be divided into square blocks. When the first dividing plate 222 and the second dividing plate 223 are arranged obliquely, they can also be cut to form triangular material blocks.
[0034] Furthermore, the first partition plate 222 and the second partition plate 223 each include a plurality of first partition plates 222 and second partition plates 223, and each first partition plate 222 is arranged parallel to each other, and each second partition plate 223 is arranged parallel to each other. In this way, the first partition plate 222 and the second partition plate 223 can form a plurality of squares, each of which is used to cut and form a material block, so that the cutting of the material block is more delicate and the sintering effect is improved. In other optional embodiments, the first partition plate 222 and the second partition plate 223 can also be arranged at an angle, and a plurality of them can be respectively arranged, so that a plurality of rhombus-shaped material blocks can be cut and formed.
[0035] Furthermore, in order to reduce vibration, a spring 23 is sleeved on the driving end of the driving cylinder, one end of the spring 23 abuts against the driving cylinder, and the other end abuts against the mounting plate 221. The setting of the spring 23 can prevent the mounting plate 221 and the dividing plate from vibrating greatly during movement, thereby avoiding overturning materials.
[0036] Furthermore, in order to improve the processing efficiency of the material, a conveyor belt 14 is provided on the second plate body 12, and the conveyor belt 14 extends along the length direction of the second plate body 12, and the conveyor belt 14 is used to convey the material sagger 3. In the actual production process, the material sagger 3 can be placed on the conveyor belt 14 in sequence. When the conveyor belt 14 conveys the material sagger 3 to the compacting and dividing piece 2, the driving part 21 drives the dividing part 22 to move, and compacts and cuts the material downward. Correspondingly, a sensor is provided on the dividing part 22, and the sensor is used to sense the incoming material from the material sagger 3, and the sensor is electrically connected to the driving part 21. When the sensor senses the incoming material from the material sagger 3, the driving part 21 starts to drive the dividing part 22 to press downward.
[0037] In the technical solution provided by the present utility model, the seat body 1 further includes a support rod 13 connected between the first plate body 11 and the second plate body 12 , which can significantly improve the stability of the seat body 1 .
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A material sintering auxiliary compaction and splitting device, characterized in that: include: The base body includes a first plate body and a second plate body which are arranged opposite to each other in the vertical direction, and the second plate body is used for placing the material sagger; The compacting and dividing part is arranged on the first plate body, and comprises a driving part and a dividing part. The driving part drives and connects the dividing part so that the dividing part has an active stroke approaching or moving away from the second plate body. The dividing part is used to compact and divide the material in the process of approaching the material sagger.
2. The material sintering auxiliary compaction and segmentation device according to claim 1, characterized in that: The driving part includes a driving cylinder disposed on the first plate body, and the dividing part is disposed at an end of the driving cylinder.
3. The material sintering auxiliary compaction and segmentation device according to claim 2, characterized in that: The dividing portion includes a mounting plate and a dividing plate, wherein the mounting plate is arranged at the end of the driving cylinder, and the dividing plate is arranged at one side of the mounting plate; the dividing plate is used to extend into the material crate, and the mounting plate is used to cover the opening of the material crate.
4. The material sintering auxiliary compaction and segmentation device according to claim 3, characterized in that: The partition plates include a plurality of partition plates, each of which is cross-arranged.
5. The material sintering auxiliary compaction and segmentation device according to claim 4, characterized in that: The partition plate includes a first partition plate and a second partition plate, and the first partition plate and the second partition plate are perpendicular to each other.
6. The material sintering auxiliary compaction and segmentation device according to claim 5, characterized in that: The first partition plates and the second partition plates each include a plurality of plates, the first partition plates are arranged parallel to each other, and the second partition plates are arranged parallel to each other.
7. The material sintering auxiliary compaction and segmentation device according to claim 3, characterized in that: A spring is sleeved on the driving end of the driving cylinder, one end of the spring abuts against the driving cylinder, and the other end abuts against the mounting plate.
8. The material sintering auxiliary compaction and segmentation device according to claim 1, characterized in that: A conveyor belt is provided on the second plate body. The conveyor belt extends along the length direction of the second plate body and is used to convey the material sagger.
9. The material sintering auxiliary compaction and segmentation device according to claim 8, characterized in that: The dividing part is provided with a sensor, the sensor is used for sensing the incoming material from the material sagger, and the sensor is electrically connected to the driving part.
10. The material sintering auxiliary compaction and segmentation device according to claim 1, characterized in that: The seat body also includes a support rod connected between the first plate body and the second plate body.