CN209655801U - Graphite crucible is used in a kind of purification of cathode of lithium battery - Google Patents
Graphite crucible is used in a kind of purification of cathode of lithium battery Download PDFInfo
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- CN209655801U CN209655801U CN201920107090.2U CN201920107090U CN209655801U CN 209655801 U CN209655801 U CN 209655801U CN 201920107090 U CN201920107090 U CN 201920107090U CN 209655801 U CN209655801 U CN 209655801U
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- crucible
- cylinder
- cathode
- lithium battery
- circular cone
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Abstract
The utility model relates to a kind of cathode of lithium battery purification graphite crucibles, including crucible cover and crucible, the integral cavity structure that the crucible is made of crucible cylinder and crucible bottom plate, the intersection of the crucible cylinder and crucible bottom plate is equipped with transition arc, the inner cavity of the crucible cylinder is equipped in arrival end thickeies cylinder, the intersection for thickening cylinder and crucible tube inner chamber is equipped with transition circular cone, the transition circular cone is also matched with heat insulation cylinder in the outer wall of crucible cylinder and reinforces cylinder, first cylinder boss of the crucible cover is equipped with groove, and the outside of the groove is equipped with strainer.A kind of cathode of lithium battery purification graphite crucible of the utility model, can prevent from cracking at the crucible mouth of the crucible bottom of crucible and the intersection of crucible cylinder and crucible；Not only the gas in crucible is easily drained, but also can prevent filler material from entering in crucible, influences the quality of product；It can prevent crucible cylinder stress due to caused by wall thickness change at transition circular cone from changing and crucible cylinder is caused to crack.
Description
Technical field
The utility model relates to a kind of graphite crucibles, more particularly to a kind of cathode of lithium battery purification graphite crucible.
Background technique
When graphite crucible is purified for cathode of lithium battery, negative electrode powder is installed as container, and carry out more than 3000 degrees Celsius
High-temperature heat treatment, since during heat treatment, negative electrode powder can expand, thus it is very high to the intensity requirement of crucible.
Common cathode of lithium battery purification graphite crucible: under the action of by negative electrode powder expansive force in crucible, earthenware
The crucible bottom of crucible and the intersection of crucible cylinder are easy cracking, are easy cracking at the crucible mouth of crucible；Crucible when heated, covers crucible cover
Afterwards, the gas in crucible is difficult to be discharged, some crucible covers with gas vent, and when high-temperature process is easily accessible again for preventing crucible
The filler material of body deformation, influences product quality.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of cathode of lithium battery purification graphite crucible.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The cathode of lithium battery purification graphite crucible includes crucible cover and crucible, and the crucible cover is covered on entering for crucible
At mouthful, it is characterised in that: the integral cavity structure that the crucible is made of crucible cylinder and crucible bottom plate, the crucible cylinder and crucible bottom plate
Intersection is equipped with transition arc, and the inner cavity of the crucible cylinder is equipped in arrival end thickeies cylinder, the friendship for thickening cylinder and crucible tube inner chamber
Transition circular cone is equipped at boundary, the bottom surface of the crucible cover is equipped with the first cylinder boss to connect with the crucible arrival end, described
First cylinder boss is equipped with diameter and is less than second cylinder boss for thickening cylinder internal diameter, and on first cylinder boss also
Concordant with the periphery of second cylinder boss equipped with one end, other end is more through the first cylinder boss periphery
A uniformly distributed groove.
In a kind of preferred embodiment of cathode of lithium battery purification graphite crucible provided by the utility model, the transition
Circular cone is also matched with heat insulation cylinder in the outer wall of crucible cylinder, and the outer wall of the heat insulation cylinder is also matched with reinforcement cylinder.
It is described heat-insulated in a kind of preferred embodiment of cathode of lithium battery purification graphite crucible provided by the utility model
Cylinder is contour with the reinforcements cylinder, and the heat insulation cylinder and it is described reinforce cylinder more than the height of transition circular cone upper and lower end be 20~
30mm。
In a kind of preferred embodiment of cathode of lithium battery purification graphite crucible provided by the utility model, the transition
The cone-apex angle α of circular cone is 30~40 °.
In a kind of preferred embodiment of cathode of lithium battery purification graphite crucible provided by the utility model, described first
Strainer is also matched on the periphery of cylinder boss.
In a kind of preferred embodiment of cathode of lithium battery purification graphite crucible provided by the utility model, the earthenware
Crucible, crucible cover are suppressed by pitch and after-smithing petroleum coke.
Compared with prior art, the beneficial effect of cathode of lithium battery purification graphite crucible provided by the utility model is:
One, transition arc is arranged by the intersection at the crucible bottom of crucible and crucible cylinder in the utility model, in the crucible mouth of crucible
Place's setting thickeies cylinder, can prevent under the action of by negative electrode powder expansive force, the crucible bottom of crucible and the intersection and earthenware of crucible cylinder
It cracks at the crucible mouth of crucible；By the way that the groove in outside in connection crucible is arranged on the first cylinder boss of the crucible cover, in earthenware
When crucible heats, be conducive to the gas discharge in crucible；Strainer is set again in the outside of the groove, not only the gas in crucible can
With discharge, and since the effect of strainer can also prevent filler material from entering in crucible, the quality of product is influenced.
Two, by the way that the transition circular cone of special angle is arranged in the intersection of the thickening cylinder and crucible tube inner chamber, and in transition
The outer wall matching setting heat insulation cylinder and reinforcement cylinder of crucible tube, can increase the stress non-deformability at transition circular cone at circular cone, can
The crucible cylinder of crucible is caused to crack to prevent crucible cylinder stress due to caused by wall thickness change at transition circle cone from changing.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the structural schematic diagram of cathode of lithium battery purification graphite crucible provided by the utility model；
Fig. 2 is the bottom view of the crucible cover of cathode of lithium battery purification graphite crucible provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Also referring to Fig. 1 and Fig. 2, the cathode of lithium battery purification graphite crucible includes crucible cover 1 and crucible 5, institute
State the inlet that crucible cover 1 is covered on crucible 5, the integral cavity structure that the crucible 5 is made of crucible cylinder 53 and crucible bottom plate 51,
The intersection of the crucible cylinder 53 and crucible bottom plate 51 is equipped with transition arc 52, and the inner cavity of the crucible cylinder 53 is equipped in arrival end thickeies cylinder
55, the intersection for thickening cylinder 55 and 53 inner cavity of crucible cylinder is equipped with transition circular cone 54, the bottom surface of the crucible cover 1 be equipped with it is described
The first cylinder boss 11 that 5 arrival end of crucible connects, first cylinder boss 11 are equipped with diameter and are less than the thickening cylinder 55
Second cylinder boss 12 of internal diameter, the design are formed after closing the lid of the first cylinder boss 11 with the inner wall for thickening cylinder 55
Airflow channel, and it is concordant with the periphery of second cylinder boss 12 to be additionally provided with one end on first cylinder boss 11, separately
Multiple uniformly distributed grooves 13 of 11 periphery of the first cylinder boss are run through in outer one end, and the groove 13 is for being vented.
The transition circular cone 54 is also matched with heat insulation cylinder 4 in the outer wall of crucible cylinder 53, and the outer wall of the heat insulation cylinder 4 is also matched with
Reinforce cylinder 3.
The heat insulation cylinder 4 and the reinforcement cylinder 3 are contour, and the heat insulation cylinder 4 and the reinforcement cylinder 3 are more than transition circular cone 54
The height of upper and lower end is 20~30mm, which can avoid the upper and lower ends with 54 intersection of transition circular cone due to stress collection
In and crack.
The cone-apex angle α of the transition circular cone 54 is 30~40 °, and the angled transition is more gentle, can avoid stress change dramatically,
Stress is generated to concentrate.
It is also matched with strainer 2 on the periphery of first cylinder boss 11,2 one side of strainer is another for being vented
Aspect is used to prevent filler material from entering in crucible 5, influences the quality of product.
The crucible 5, crucible cover 1 are suppressed by pitch and after-smithing petroleum coke, and the pitch and after-smithing petroleum coke
Accounting be 30% and 70% respectively, crucible 5 made of pitch and the after-smithing petroleum coke compacting of the ratio and crucible cover 1 can be born
More than 3000 degrees Celsius of high temperature.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass similarly includes within the scope of patent protection of the utility model.
Claims (6)
1. a kind of cathode of lithium battery purification uses graphite crucible, including crucible cover and crucible, the crucible cover to be covered on entering for crucible
At mouthful, it is characterised in that: the integral cavity structure that the crucible is made of crucible cylinder and crucible bottom plate, the crucible cylinder and crucible bottom plate
Intersection is equipped with transition arc, and the inner cavity of the crucible cylinder is equipped in arrival end thickeies cylinder, the friendship for thickening cylinder and crucible tube inner chamber
Transition circular cone is equipped at boundary, the bottom surface of the crucible cover is equipped with the first cylinder boss to connect with the crucible arrival end, described
First cylinder boss is equipped with diameter and is less than second cylinder boss for thickening cylinder internal diameter, and on first cylinder boss also
Concordant with the periphery of second cylinder boss equipped with one end, other end is more through the first cylinder boss periphery
A uniformly distributed groove.
2. cathode of lithium battery purification graphite crucible according to claim 1, it is characterised in that: the transition circular cone is in crucible
The outer wall of cylinder is also matched with heat insulation cylinder, and the outer wall of the heat insulation cylinder is also matched with reinforcement cylinder.
3. cathode of lithium battery according to claim 2 purification graphite crucible, it is characterised in that: the heat insulation cylinder with it is described
Reinforcement cylinder is contour, and the heat insulation cylinder and the reinforcement cylinder are 20~30mm more than the height of transition circular cone upper and lower end.
4. cathode of lithium battery purification graphite crucible according to claim 1, it is characterised in that: the cone of the transition circular cone
Apex angle α is 30~40 °.
5. cathode of lithium battery purification graphite crucible according to claim 1, it is characterised in that: first cylinder boss
Periphery on be also matched with strainer.
6. cathode of lithium battery purification graphite crucible according to claim 1, it is characterised in that: the crucible, crucible cover
It is suppressed by pitch and after-smithing petroleum coke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107090.2U CN209655801U (en) | 2019-01-22 | 2019-01-22 | Graphite crucible is used in a kind of purification of cathode of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107090.2U CN209655801U (en) | 2019-01-22 | 2019-01-22 | Graphite crucible is used in a kind of purification of cathode of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209655801U true CN209655801U (en) | 2019-11-19 |
Family
ID=68521964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107090.2U Expired - Fee Related CN209655801U (en) | 2019-01-22 | 2019-01-22 | Graphite crucible is used in a kind of purification of cathode of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209655801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436249A (en) * | 2022-03-04 | 2022-05-06 | 常州二维碳素科技股份有限公司 | Graphite crucible |
-
2019
- 2019-01-22 CN CN201920107090.2U patent/CN209655801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436249A (en) * | 2022-03-04 | 2022-05-06 | 常州二维碳素科技股份有限公司 | Graphite crucible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 Termination date: 20210122 |