Sagger and sintering device
By designing a cassette with an inner lining with an anti-bonding structure, the problem of the existing cassette's rough surface leading to the bonding of the cathode material is solved, and better cleanliness and service life is achieved.
Patent Information
- Application Number
- CN202421765814.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The surface of the existing cassette is rough, which makes the battery positive electrode material easy to stick to the surface of the cassette and difficult to clean, affecting the preparation of the battery positive electrode material.
A cassette is designed, including a cassette body and a removable inner lining. The inner lining covers the bottom plate and the side plate, and an anti-bonding structure is provided on the side facing away from the cassette body to prevent the positive electrode material from being bonded.
Through the gap between the inner lining and the cassette body, the bonding between the positive electrode material and the cassette body is avoided, the cleaning process is simplified, the service life of the cassette is extended, and the preparation quality of the cathode material is improved.
Smart Images
Figure CN222824834U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery positive electrode material production equipment, and in particular to a sagger and a sintering device. Background Art
[0002] The production process of the battery positive electrode material is as follows: the raw material powder is mixed and then placed in a sagger for high-temperature roasting to obtain the battery positive electrode material.
[0003] Existing saggers are usually made of mullite, corundum powder, mullite cordierite or corundum mullite, etc. The surface of the sagger is rough, which makes it easy for the positive electrode material of the battery to stick to the surface of the sagger, making it difficult to clean, affecting the preparation of the positive electrode material of the battery. Utility Model Content
[0004] In view of this, the present application provides a sagger and a sintering device, the purpose of which is to solve one of the technical problems in the prior art.
[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:
[0006] In a first aspect, an embodiment of the present application provides a sagger, comprising:
[0007] The sagger body includes a bottom plate and side plates;
[0008] A lining member is removably arranged in the sagger body. When the lining member is arranged in the sagger body, the lining member covers the bottom plate and the side plate. An anti-adhesion structure is arranged on a side of the lining member facing away from the sagger body.
[0009] In one embodiment of the first aspect, the anti-adhesion structure is an alkali-resistant coating, and / or the anti-adhesion structure is a polished surface formed by mechanical processing.
[0010] In one embodiment of the first aspect, the lining member includes a plurality of first basic blocks and a plurality of second basic blocks, the plurality of first basic blocks are spliced to form an inner lining wall covering the bottom plate, and / or the area of the first basic blocks accounts for 10% to 50% of the area of the bottom plate;
[0011] A plurality of the second basic blocks are spliced to form a lining side wall covering the side panel, and / or the area of the second basic block accounts for 10% to 50% of the area of the side panel;
[0012] The inner lining bottom wall and the inner lining side wall are cooperatively connected to form a receiving space.
[0013] In one embodiment of the first aspect, the first base block and the second base block are made of at least one of mullite, corundum powder, cordierite, and corundum.
[0014] In one embodiment of the first aspect, a lining side wall and a lining bottom wall are respectively provided with a protruding structure on a side facing the sagger body, so as to form a gap between the lining member and the sagger body.
[0015] In one of the embodiments of the first aspect, the side wall is provided with a plurality of through holes, and the through holes are connected to the outside and the gap.
[0016] In one embodiment of the first aspect, the protrusion structure is in any one of an arc shape, a truncated cone shape, a cone shape, a hexahedron shape, and a rectangle shape.
[0017] In one embodiment of the first aspect, the sagger further includes a limiting member, and the limiting member is detachably connected to the sagger body, so that the lining member is separated from the sagger body or the lining member is accommodated in the sagger body.
[0018] In one embodiment of the first aspect, the limiting member includes an annular stopper connected to a side of the side plate away from the bottom plate.
[0019] In a second aspect, an embodiment of the present application further provides a sintering device, comprising the sagger described in any of the above embodiments.
[0020] Compared with the prior art, the beneficial effects of the present application are as follows: the present application proposes a sagger, comprising a sagger body and a lining member, the sagger body comprising a bottom plate and a side plate; the lining member is removably arranged in the sagger body, and when the lining member is arranged in the sagger body, the lining member covers the bottom plate and the side plate, and an anti-bonding structure is provided on the side of the lining member facing away from the sagger body. During the sintering process, the positive electrode material is contained in the lining member, and the positive electrode material is separated from the sagger body, thereby solving the problem of easy bonding between the positive electrode material and the inner surface of the sagger body. In addition, the lining member can be removed from the sagger body, and an anti-bonding structure is provided on the side of the lining member facing away from the sagger body, which is convenient for cleaning the lining and makes the lining member reusable. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It shows a schematic diagram of the structure of the sagger in some embodiments of the present application;
[0023] Figure 2 A schematic diagram of the cross-sectional structure of a sagger in some embodiments of the present application is shown;
[0024] Figure 3 A schematic diagram of the structure of the liner side wall in some embodiments of the present application is shown;
[0025] Figure 4 A schematic diagram of the structure of the inner substrate wall in some embodiments of the present application is shown.
[0026] Explanation of the main component symbols: 100-sagger; 110-sagger body; 120-lining; 150-cover; 151-air port; 111-bottom plate; 112-side plate; 123-anti-adhesion structure; 1211-first base block; 121-lining wall; 1221-second base block; 122-lining side wall; 124-protrusion structure; 140-gap; 1121-through hole; 130-limiting member. DETAILED DESCRIPTION
[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a 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, a first feature being “above”, “above”, and “above” a 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. A first feature being “below”, “below”, and “below” a 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.
[0032] The surface of the sagger 100 in the related art is rough, and the positive electrode material is easy to stick to the surface of the sagger 100 and is difficult to clean. If the sagger 100 is not cleaned or is not cleaned and used continuously, the positive electrode material will continue to accumulate on the surface of the sagger 100. After multiple sintering, the residual material on the surface of the sagger 100 will fall off and mix into the positive electrode material, thereby affecting the quality of the positive electrode material.
[0033] In response to the above problems, Figure 1 and Figure 2 As shown, an embodiment of the present application provides a sagger 100, which is mainly used as a container for high-temperature sintered battery positive electrode materials.
[0034] The sagger 100 includes a sagger body 110 , a lining member 120 and a cover 150 .
[0035] The cover 150 is used to cover the sagger body 110 , and a plurality of air ports 151 are provided on the cover 150 .
[0036] In the present embodiment, the length x width x height dimensions of the sagger body 110 are 330 cm x 330 cm x 120 cm. In other embodiments, the dimensions of the sagger body 110 can be set as required.
[0037] The sagger body 110 includes a bottom plate 111 and a side plate 112; the lining member 120 is removably disposed in the sagger body 110. When the lining member 120 is disposed in the sagger body 110, the lining member 120 covers the bottom plate 111 and the side plate 112. In this way, during the sintering process, the positive electrode material is contained in the lining member 120, and the positive electrode material is separated from the sagger body 110, so as to solve the problem that the positive electrode material and the inner surface of the sagger body 110 are easily bonded, and the service life of the sagger body 110 is extended.
[0038] The lining member 120 is provided with an anti-adhesion structure on one side away from the sagger body 110, and the lining member 120 can be removed from the sagger body 110, and the lining member 120 is provided with an anti-adhesion structure on one side away from the sagger body 110. In this way, the positive electrode material can be reduced from adhering to the surface of the lining member 120, and the residual positive electrode material can be removed easily, so that the lining member 120 can be reused.
[0039] The anti-bonding structure 123 is an alkali-resistant coating, and / or the anti-bonding structure 123 is a polished surface formed by mechanical processing.
[0040] For example, an alkali-resistant coating may be applied to the side of the lining member 120 that is away from the sagger body 110. Most positive electrode materials are alkaline, and by providing the alkali-resistant coating, the surface roughness of the lining member 120 is reduced by the dense characteristics of the alkali-resistant coating, and the positive electrode material can be prevented from corroding the lining member 120, thereby extending the service life of the lining member 120.
[0041] The alkali-resistant coating is made of magnesium oxide, aluminum oxide and zirconium oxide materials.
[0042] The thickness of the alkali-resistant coating is 0.01 to 0.1 cm.
[0043] Exemplarily, the side of the lining member 120 facing away from the sagger body 110 is mechanically polished to reduce the surface roughness of the lining member 120 , and the surface roughness of the lining member 120 is 0.2 to 1.6 Ra.
[0044] For example, the side of the lining member 120 facing away from the sagger body 110 may be mechanically polished first, and then an alkali-resistant coating may be provided on the polished surface.
[0045] For example, an alkali-resistant coating may be provided on a side of the lining member 120 facing away from the bottom plate 111 , and mechanical polishing may be performed on a side of the lining member 120 facing away from the side plate 112 .
[0046] In some embodiments, Figure 1As shown, the lining member 120 includes multiple first basic blocks 1211 and multiple second basic blocks 1221. The multiple first basic blocks 1211 are spliced to form an inner lining wall 121 covering the base plate 111, and / or the area of the first basic blocks 1211 accounts for 10% to 50% of the area of the base plate 111.
[0047] For example, Figure 4 As shown, the structure of the first basic block 1211 is roughly rectangular, and the area of the first basic block 1211 accounts for 1 / 9 of the area of the bottom plate 111. Nine first basic blocks 1211 are spliced in a 3*3 manner to form the inner substrate wall 121.
[0048] A plurality of second basic blocks 1221 are spliced to form the lining side wall 122 covering the side plate 112 , and / or the area of the second basic blocks 1221 accounts for 10% to 50% of the area of the side plate 112 .
[0049] For example, Figure 3 As shown, the structure of the second basic block 1221 is roughly rectangular, and the area of the second basic block 1221 accounts for 1 / 3 of the area of the bottom plate 111 . Three second basic blocks 1221 are spliced side by side to form the lining side wall 122 .
[0050] The lining bottom wall 121 is formed by splicing multiple first basic blocks 1211, and the lining side wall 122 is formed by splicing multiple second basic blocks 1221. When the lining side wall 122 or the lining bottom wall 121 is damaged, only the corresponding second basic block 1221 or the first basic block 1211 needs to be replaced, and the remaining basic blocks can continue to be used, thereby extending the service life of the lining part 120 and reducing the renewal cost.
[0051] The inner liner bottom wall 121 and the inner liner side wall 122 are connected to form a receiving space for containing positive electrode materials, separating the positive electrode materials from the sagger body 110, so that the sagger body 110 can be used multiple times, extending the service life and reducing production costs.
[0052] In some embodiments, the lining member 120 has four lining side walls 122 , each lining side wall 122 is rectangular and has a thickness of 0.2 to 1 cm, and the lining bottom wall 121 is rectangular and has a thickness of 0.3 to 1.2 cm.
[0053] Exemplarily, the thickness of the liner side wall 122 is 0.8 cm, and the thickness of the liner bottom wall 121 is 0.9 cm.
[0054] In some embodiments, the first base block 1211 and the second base block 1221 are made of at least one of mullite, corundum powder, cordierite, and corundum. The first base block 1211 and the second base have higher corrosion resistance to avoid reaction with the positive electrode material. The lining member 120 can be cleaned and reused after use, and the surface of the lining member 120 is smooth and corrosion-free after cleaning.
[0055] In the related art, the positive electrode material and the sagger 100 are tightly fitted around each other, resulting in oxygen deficiency in the material at the bottom of the sagger 100 during the roasting process. The roasted positive electrode material has poor consistency due to different oxygen conditions on the surface and the bottom.
[0056] For the above questions, please continue to refer to Figure 1 and Figure 2 In some embodiments, the lining side wall 122 and the lining bottom wall 121 are respectively provided with a protruding structure 124 on the side facing the sagger body 110, so that a gap 140 is formed between the lining member 120 and the sagger body 110. In addition, a plurality of through holes 1121 are provided on the side wall, and the through holes 1121 are connected to the outside and the gap 140. In this way, the outside air enters the gap 140 through the through holes 1121, and the gap 140 is used as an oxygen supply channel in the sagger body 110, so that the oxygen conditions on the surface and the bottom wall of the positive electrode material contained in the lining member 120 are consistent, thereby improving the consistency of the positive electrode material.
[0057] In some embodiments, the protrusion structure 124 is in any of the following shapes: arc, truncated cone, cone, hexahedron, or rectangle. Exemplarily, there are multiple protrusion structures 124 on each liner sidewall 122, and the multiple protrusion structures 124 are evenly distributed, so that the oxygen distribution at each side of the liner 120 is even, which is beneficial to improve the consistency of the sintering of the positive electrode material.
[0058] In some embodiments, the distribution density of the protrusion structure 124 on the inner substrate wall 121 is lower than the distribution density of the protrusion structure 124 at the inner liner side wall 122, so that the gas flow speed at the inner substrate wall 121 is faster and the oxygen content is increased, which is beneficial to improving the consistency of the sintering of the positive electrode material.
[0059] In addition, in some embodiments, by opening a through hole 1121 on the side plate 112, a space for accommodating the expansion of the sagger body 110 is reserved, thereby reducing cracking of the sagger body 110 due to thermal expansion, extending the service life of the sagger body 110 and reducing costs.
[0060] In some embodiments, the sagger 100 further includes a stopper 130 , which is detachably connected to the sagger body 110 , so that the lining member 120 is separated from the sagger body 110 or the lining member 120 is accommodated in the sagger body 110 .
[0061] In some embodiments, the stopper 130 includes an annular stopper connected to the side of the side plate 112 away from the bottom plate 111. Accordingly, an annular groove is provided at the end of the side plate 112 away from the bottom plate 111, and the annular stopper is partially engaged in the annular groove (not shown).
[0062] When the liner is needed, the liner 120 is placed into the sagger body 110, and the annular stopper is inserted into the annular groove, so that the liner 120 and the sagger body 110 are combined together; when the liner 120 needs to be cleaned or replaced, the annular stopper is removed from the annular groove, and the liner 120 and the sagger body 110 are separated.
[0063] The embodiment of the present application further provides a sintering device, including the sagger 100 of any of the above embodiments. Therefore, all the beneficial effects of the sagger 100 of any of the above embodiments are possessed, which will not be described in detail here.
[0064] 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 present application. 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.
[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A sagger, characterized in that: include: The sagger body includes a bottom plate and side plates; A lining member is removably arranged in the sagger body. When the lining member is arranged in the sagger body, the lining member covers the bottom plate and the side plate. An anti-adhesion structure is arranged on a side of the lining member facing away from the sagger body.
2. The sagger according to claim 1, characterized in that: The anti-bonding structure is an alkali-resistant coating, and / or the anti-bonding structure is a polished surface formed by mechanical processing.
3. The sagger according to claim 2, characterized in that: The lining member comprises a plurality of first basic blocks and a plurality of second basic blocks, the plurality of first basic blocks are spliced to form an inner lining wall covering the bottom plate, and / or the area of the first basic blocks accounts for 10% to 50% of the area of the bottom plate; A plurality of the second basic blocks are spliced to form a lining side wall covering the side panel, and / or the area of the second basic block accounts for 10% to 50% of the area of the side panel; The inner lining bottom wall and the inner lining side wall are cooperatively connected to form a receiving space.
4. The sagger according to claim 3, characterized in that: The first basic block and the second basic block are made of at least one of mullite, corundum powder, cordierite and corundum.
5. The sagger according to claim 3, characterized in that: The lining side wall and the lining bottom wall are respectively provided with a protruding structure on one side facing the sagger body, so as to form a gap between the lining member and the sagger body.
6. The sagger according to claim 5, characterized in that: The side wall is provided with a plurality of through holes, and the through holes are connected with the outside and the gap.
7. The sagger according to claim 5, characterized in that: The protruding structure is in any one of an arc shape, a truncated cone shape, a cone shape, a hexahedron shape, and a rectangle shape.
8. The sagger according to any one of claims 1 to 7, characterized in that The sagger further comprises a limiting member, and the limiting member is detachably connected to the sagger body so as to separate the lining member from the sagger body or to accommodate the lining member in the sagger body.
9. The sagger according to claim 8, characterized in that: The limiting member comprises an annular stopper connected to a side of the side plate away from the bottom plate.
10. A sintering device, characterized in that: The invention comprises the sagger according to any one of claims 1 to 9.