CN219913986U - Atmosphere uniformity device for high-temperature sintering of sodium ion battery - Google Patents
Atmosphere uniformity device for high-temperature sintering of sodium ion battery Download PDFInfo
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- CN219913986U CN219913986U CN202320974007.8U CN202320974007U CN219913986U CN 219913986 U CN219913986 U CN 219913986U CN 202320974007 U CN202320974007 U CN 202320974007U CN 219913986 U CN219913986 U CN 219913986U
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- sodium ion
- ventilation
- column
- temperature sintering
- atmosphere
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- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 43
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000005245 sintering Methods 0.000 title claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 106
- 239000002243 precursor Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims description 4
- 229920000447 polyanionic polymer Polymers 0.000 claims description 4
- 229960003351 prussian blue Drugs 0.000 claims description 4
- 239000013225 prussian blue Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses an atmosphere uniformity device for high-temperature sintering of a sodium ion battery, which comprises a bottom shell for bearing precursor raw materials and a surface shell buckled on the bottom shell, wherein a precursor raw material accommodating cavity is formed between the bottom shell and the surface shell, a plurality of lower ventilation columns are arranged on the bottom shell, lower ventilation holes are formed in the outer wall of each lower ventilation column, an upper ventilation column corresponding to the lower ventilation column in position is arranged on the surface shell, upper ventilation holes are formed in each upper ventilation column, the upper ventilation columns are movably embedded into the lower ventilation columns, ventilation gaps are formed between the upper ventilation columns and the lower ventilation columns, and the upper ventilation holes and the lower ventilation holes are communicated in a staggered manner. The atmosphere uniformity device for high-temperature sintering of the sodium ion battery has the characteristics of high atmosphere uniformity, good anti-blocking property and low gas consumption.
Description
Technical Field
The utility model relates to the technical field of paint tools, in particular to an atmosphere uniformity device for high-temperature sintering of a sodium ion battery.
Background
The sodium ion battery is similar to the lithium ion battery in working principle, and is charged and discharged through the processes of moving sodium ions between the anode and the cathode, inserting/extracting and the like, so that energy conversion is realized. Sodium ion batteries have the following distinct advantages over lithium ion batteries.
In the preparation process of the positive electrode material or the negative electrode material of the sodium ion battery, the precursor is required to be sintered at high temperature under the protection atmosphere condition, and the process is related to the Chinese patent application CN115385380A, CN115050957A, CN115513452A and the like. The existing mode is mainly to directly introduce atmosphere into a tube furnace for protection, and because more dead volume exists in the tube furnace, the protective atmosphere has poor fluidity in the tube furnace, the uniformity of the protective atmosphere fully contacted with the precursor is poor, the gas consumption is large, and the purity of the prepared material is affected.
Disclosure of Invention
The utility model aims to provide an atmosphere uniformity device for high-temperature sintering of a sodium ion battery, which has the characteristics of high atmosphere uniformity, good anti-blocking property and low air consumption.
The utility model can be realized by the following technical scheme:
the utility model discloses an atmosphere uniformity device for high-temperature sintering of a sodium ion battery, which comprises a bottom shell for bearing precursor raw materials and a surface shell buckled on the bottom shell, wherein a precursor raw material accommodating cavity is formed between the bottom shell and the surface shell, a plurality of lower ventilation columns are arranged on the bottom shell, lower ventilation holes are formed in the outer wall of each lower ventilation column, an upper ventilation column corresponding to the lower ventilation column in position is arranged on the surface shell, upper ventilation holes are formed in each upper ventilation column, the upper ventilation columns are movably embedded into the lower ventilation columns, ventilation gaps are formed between the upper ventilation columns and the lower ventilation columns, and the upper ventilation holes and the lower ventilation holes are communicated in a staggered manner.
Further, the outer wall of the lower ventilation column is also sleeved with a protection column, the outer wall of the protection column is provided with a protection air hole, a ventilation gap is formed between the protection column and the lower ventilation column, and the protection air hole is communicated with the lower ventilation hole in a dislocation manner. Through setting up the guard post, form the protection between precursor powder and lower bleeder vent, the precursor powder that sees through the guard vent falls back to the drain pan through the clearance again.
Further, the top of the face shell is provided with an air inlet hole, the air inlet hole is communicated with an air passage air circuit in the upper ventilation column, air inlet protection can be achieved only by a single air inlet hole, and a connecting structure is simplified.
Further, the side wall of the bottom shell is provided with a plurality of air outlet holes which are uniformly distributed on the outer side of the side wall to form multidirectional flowing air outlet, so that the atmosphere protection effect is ensured.
Further, the bottom shell and the face shell are square shells, the lower ventilation columns and the upper ventilation columns are distributed in a longitudinal and transverse arrangement mode, and uniformity of atmosphere protection is improved.
Further, the bottom shell and the face shell are circular shells, the lower ventilation columns and the upper ventilation columns are annularly arranged and distributed, and the uniformity of atmosphere protection is improved.
Furthermore, the bottom shell and the surface shell are metal shells or ceramic shells, and shell types with different materials can be flexibly selected according to actual requirements, so that the requirements of different sintering temperatures are met.
Further, the upper vent holes, the lower vent holes and the protective vent holes are round holes and/or square holes, so that the processing process is convenient.
Further, the air inlet is communicated with an external protective atmosphere air passage through a pipeline. In particular, the internal piping of the tube furnace may be stainless steel piping or metal hoses.
Further, the sodium ion battery is a layered oxide sodium ion battery, a polyanion sodium ion battery or a Prussian blue sodium ion battery, so that the application requirements of different types of sodium ion batteries are met.
The atmosphere uniformity device for high-temperature sintering of the sodium ion battery has the following beneficial effects:
firstly, the atmosphere uniformity is high, and the flowing protective atmosphere is fully contacted and diffused with precursor powder directly through the upper ventilation holes and the lower ventilation holes by adopting a mode of matching the upper ventilation column and the lower ventilation column, so that the precursor powder has better uniformity;
secondly, the anti-blocking performance is good, gaps are formed between the upper vent holes and the lower vent holes, the precursor powder entering from the lower vent holes is conducted in a staggered mode, the precursor powder falls through the gaps to avoid blocking the upper vent holes and the lower vent holes, and the blockage of a gas path is effectively avoided;
thirdly, the consumption of gas is little, through adopting the protection atmosphere directly through last ventilative post, the mode of the direct and abundant contact protection of lower ventilative post and precursor powder inside, the dead volume in the tubular furnace reduces to flowing atmosphere's influence, adopts the protection atmosphere of reducing flow to satisfy sintering protection needs.
Drawings
FIG. 1 is a schematic diagram showing the decomposition structure of an example 1 of an atmosphere uniformity apparatus for high-temperature sintering of sodium ion batteries according to the present utility model;
fig. 2 is a schematic diagram of an exploded structure of an embodiment 1 of an atmosphere uniformity apparatus for high-temperature sintering of a sodium ion battery according to the present utility model in embodiment 2;
the labels in the drawings include: 100 face shells, 110, upper ventilation columns, 111, upper ventilation holes, 120, air inlet holes, 200, bottom shells, 210, lower ventilation columns, 211 and lower ventilation holes.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the following further details of the present utility model will be described with reference to examples and drawings.
Example 1
As shown in fig. 1, the utility model discloses an atmosphere uniformity device for high-temperature sintering of a sodium ion battery, which comprises a bottom shell 200 for bearing precursor raw materials and a surface shell 100 buckled on the bottom shell 200, wherein the bottom shell 200 and the surface shell 100 are square shells, a precursor raw material accommodating cavity is formed between the bottom shell 200 and the surface shell 100, a plurality of lower ventilation columns 210 (only one is shown in the figure and the other are not shown in the figure) are arranged on the bottom shell 200, lower ventilation holes 211 are formed in the outer wall of the lower ventilation columns 210, an upper ventilation column 110 corresponding to the positions of the lower ventilation columns 210 is arranged on the surface shell 100, an upper ventilation hole 111 is formed in the upper ventilation column 110, the upper ventilation column 110 is movably embedded into the lower ventilation column 210, ventilation gaps are formed between the upper ventilation column 110 and the lower ventilation column 210, and the upper ventilation holes 111 and the lower ventilation holes 211 are in dislocation conduction.
In this embodiment, the outer wall of the lower ventilation column 210 is further sleeved with a protection column (not shown), the outer wall of the protection column is provided with a protection air hole, a ventilation gap is formed between the protection column and the lower ventilation column 210, and the protection air hole is in dislocation conduction with the lower ventilation hole 211.
As shown in fig. 1, an air inlet hole 120 is formed at the top of the face casing 100, and the air inlet hole 120 is in air path communication with the air passage inside the upper ventilation column 110.
In this embodiment, in order to facilitate the gas discharge, the side wall of the bottom case 200 is provided with a plurality of gas outlet holes (the gas outlet holes are needle-shaped holes, not shown), and the gas outlet holes are uniformly distributed on the outer side of the side wall.
In the present embodiment, if there are a plurality of lower ventilation columns 210 and upper ventilation columns 110, the lower ventilation columns 210 and the upper ventilation columns 110 are annularly arranged.
In the present embodiment, the bottom case 200 and the face case 100 are metal cases or ceramic cases. Specifically, the upper ventilation holes 111, the lower ventilation holes 211, and the protection ventilation holes are circular holes and/or square holes; the air inlet hole 120 is communicated with an external protective atmosphere gas circuit through a pipeline. The sodium ion battery is a layered oxide sodium ion battery, a polyanion sodium ion battery or a Prussian blue sodium ion battery.
Example 2
As shown in fig. 2, the utility model discloses an atmosphere uniformity device for high-temperature sintering of a sodium ion battery, which comprises a bottom shell 200 for bearing precursor raw materials and a surface shell 100 buckled on the bottom shell 200, wherein the bottom shell 200 and the surface shell 100 are square shells, a precursor raw material accommodating cavity is formed between the bottom shell 200 and the surface shell 100, a plurality of lower air permeable columns 210 are arranged on the bottom shell 200, lower air holes 211 are formed in the outer wall of the lower air permeable columns 210, an upper air permeable column 110 corresponding to the position of the lower air permeable columns 210 is arranged on the surface shell 100, lower air holes 211 are formed in the upper air permeable columns 110, the upper air permeable columns 110 are movably embedded into the lower air permeable columns 210, air permeable gaps are formed between the upper air permeable columns 110 and the lower air permeable columns 210, and the upper air holes 111 are communicated with the lower air holes 211 in a staggered manner.
In this embodiment, the outer wall of the lower ventilation column 210 is further sleeved with a protection column (not shown), the outer wall of the protection column is provided with a protection air hole, a ventilation gap is formed between the protection column and the lower ventilation column 210, and the protection air hole is in dislocation conduction with the lower ventilation hole 211.
As shown in fig. 2, an air inlet hole 120 is formed at the top of the face casing 100, and the air inlet hole 120 is in air path communication with the air passage inside the upper ventilation column 110.
In this embodiment, in order to facilitate the gas discharge, the side wall of the bottom case 200 is provided with a plurality of gas outlet holes (the gas outlet holes are needle-shaped holes, not shown), and the gas outlet holes are uniformly distributed on the outer side of the side wall.
In the present embodiment, if the number of the lower ventilation columns 210 and the number of the lower ventilation columns 210 are plural, the lower ventilation columns 210 and the upper ventilation columns 110 are arranged vertically and horizontally.
In the present embodiment, the bottom case 200 and the face case 100 are metal cases or ceramic cases. Specifically, the upper ventilation holes 111, the lower ventilation holes 211, and the protection ventilation holes are circular holes and/or square holes; the air inlet hole 120 is communicated with an external protective atmosphere gas circuit through a pipeline. The sodium ion battery is a layered oxide sodium ion battery, a polyanion sodium ion battery or a Prussian blue sodium ion battery.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.
Claims (10)
1. The utility model provides an atmosphere even device for sodium ion battery high temperature sintering, includes the drain pan that bears precursor raw materials and the face-piece of lock on the drain pan, form precursor raw materials between drain pan and the face-piece and hold the chamber, its characterized in that: the bottom shell is provided with a plurality of lower ventilation columns, the outer wall of each lower ventilation column is provided with a lower ventilation hole, the face shell is provided with an upper ventilation column corresponding to the position of each lower ventilation column, the upper ventilation column is provided with an upper ventilation hole, the upper ventilation column is movably embedded into the lower ventilation column, a ventilation gap is formed between the upper ventilation column and the lower ventilation column, and the upper ventilation holes are communicated with the lower ventilation holes in a staggered mode.
2. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 1, wherein: the outer wall of the lower ventilation column is also sleeved with a protection column, the outer wall of the protection column is provided with a protection air hole, a ventilation gap is formed between the protection column and the lower ventilation column, and the protection air hole is communicated with the lower ventilation hole in a dislocation manner.
3. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 2, wherein: the top of the shell is provided with an air inlet hole which is communicated with an air passage air circuit in the upper ventilation column.
4. An atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 3, wherein: the lateral wall of drain pan is equipped with a plurality of ventholes, venthole evenly distributed is in the lateral wall outside.
5. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 4, wherein: the bottom shell and the face shell are square shells, and the lower ventilation columns and the upper ventilation columns are distributed in a longitudinal and transverse arrangement mode.
6. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 4, wherein: the bottom shell and the face shell are round shells, and the lower ventilation columns and the upper ventilation columns are annularly arranged and distributed.
7. The atmosphere uniformity device for high temperature sintering of sodium ion battery according to claim 5 or 6, wherein: the bottom shell and the face shell are metal shells or ceramic shells.
8. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 7, wherein: the upper vent holes, the lower vent holes and the protective vent holes are round holes and/or square holes.
9. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 8, wherein: the air inlet is communicated with an external protective atmosphere air passage through a pipeline.
10. The atmosphere uniformity device for high temperature sintering of sodium ion batteries according to claim 9, wherein: the sodium ion battery is a layered oxide sodium ion battery, a polyanion sodium ion battery or a Prussian blue sodium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974007.8U CN219913986U (en) | 2023-04-26 | 2023-04-26 | Atmosphere uniformity device for high-temperature sintering of sodium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974007.8U CN219913986U (en) | 2023-04-26 | 2023-04-26 | Atmosphere uniformity device for high-temperature sintering of sodium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219913986U true CN219913986U (en) | 2023-10-27 |
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ID=88440958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974007.8U Active CN219913986U (en) | 2023-04-26 | 2023-04-26 | Atmosphere uniformity device for high-temperature sintering of sodium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219913986U (en) |
-
2023
- 2023-04-26 CN CN202320974007.8U patent/CN219913986U/en active Active
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