CN207456192U - A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven - Google Patents
A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven Download PDFInfo
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- CN207456192U CN207456192U CN201720867606.4U CN201720867606U CN207456192U CN 207456192 U CN207456192 U CN 207456192U CN 201720867606 U CN201720867606 U CN 201720867606U CN 207456192 U CN207456192 U CN 207456192U
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- China
- Prior art keywords
- saggar
- kiln car
- loaded
- high temperature
- lithium cell
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 239000010406 cathode material Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 20
- 239000010439 graphite Substances 0.000 claims abstract description 20
- 239000011819 refractory material Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 11
- 239000011449 brick Substances 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 7
- 238000005245 sintering Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005255 carburizing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The utility model discloses a kind of high temperature resistant kiln cars that lithium cell cathode material is loaded in tunnel oven, including kiln car main body and at least one saggar being loaded in the kiln car main body, the saggar is double-layer structure, including outer saggar and interior saggar, the outer saggar and the upper opening of interior saggar are stamped sealing upper cover, and packing material is filled between the outer saggar and interior saggar, the interior saggar is saggar in graphite, and the outer saggar is built using refractory material.The high temperature resistant kiln car of this practicality habit can realize lithium cell cathode material in tunnel oven in 850 DEG C or more of carbonization.
Description
Technical field
The utility model is related to a kind of kiln car more particularly to a kind of resistance to height that lithium cell cathode material is loaded in tunnel oven
Warm kiln car.
Background technology
Lithium ion battery has that energy density is high, environmental-friendly, structure diversification and the excellent specific properties such as cheap, is not
Carry out the ideal source of the high-end energy-storage system such as hybrid vehicle, space technology.Lithium ion battery by anode, cathode, membrane and
Electrolyte forms.At present, lithium ion battery negative material mainly includes carbonaceous mesophase spherules, native graphite and Delanium,
Preparation process comprises the following steps：（1）By material disintegrating；（2）The material of crushing is subjected to high temperature under the protection of nitrogen atmosphere
Carbonization；（3）Graphitization processing is carried out at a high temperature of 2900 ~ 3200 DEG C；（4）Carbonization treatment is finally carried out again or is directly wrapped
Dress.
At present, the common practice of the high temperature cabonization of lithium cell cathode material is in electrical heating roller kilns under nitrogen protection
It carries out.Roller kilns are a kind of continuous sintering furnaces for material being conveyed in graphite saggar by ceramic rod material.Work
Lithium cell cathode material is placed in the graphite saggar of sealing by personnel first, then graphite saggar is loaded into the ceramic roller of roller kilns
On stick.
In order to reduce production and application cost, yield is improved, occurs low-temperature carbonization tunnel oven, material in the market recently
Load mode as shown in Figure 1, including kiln car main body 5 and at least one saggar for being loaded in the kiln car main body 5, it is described
Saggar is double-layer structure, saggar 2 in the graphite of the internal layer including saggar outside stainless steel 1 and inside the stainless steel saggar 1,
And packing material 3 is filled in the outer saggar 1 of stainless steel and graphite between saggar 2, which is river sand/alumina powder.Outside
The upper opening of saggar and interior saggar is stamped sealing upper cover, to form double-layer sealing structure, it is ensured that material will not be aoxidized.
Big yield to realize lithium cell cathode material is efficiently carbonized, and preferable carburizing temperature should be at 1100 DEG C or more.So
And since the material temperature of 310S stainless steels used in saggar outside stainless steel limits, current carburizing temperature must control
850 DEG C or less, otherwise saggar can damage outside stainless steel, so as to cause the destruction of saggar in graphite.This causes current lithium electricity
The carbonization time of pond negative material is longer, and yield is restricted.
Utility model content
The purpose of this utility model is to provide it is a kind of in tunnel oven load lithium cell cathode material high temperature resistant kiln car,
It can realize lithium cell cathode material in tunnel oven in 850 DEG C or more of carbonization.
For achieve the above purposes, the technical solution adopted by the present invention is as follows：
A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven including kiln car main body and is loaded in described
At least one saggar in kiln car main body, the saggar is double-layer structure, including outer saggar and interior saggar, the outer saggar
Sealing upper cover is stamped with the upper opening of interior saggar, and filled with packing material, institute between the outer saggar and interior saggar
The interior saggar stated is saggar in graphite, it is characterised in that：The outer saggar is built using refractory material.
The saggar of the utility model is designed using double-layer structure, and outer layer is built using refractory material, and internal layer is stone
Black saggar.The refractory material for building outer saggar has more superior high temperature resistance, energy compared with existing stainless steel saggar
Lithium cell cathode material is enough realized at a high temperature of 500 ~ 1250 DEG C, the high temperature cabonization especially at a temperature of 850 DEG C or more,
Production efficiency is effectively improved, shortens sintering time, improves yield.
Preferably, the sealing upper cover for covering the opening on the interior saggar is graphite cover board.
Preferably, the sealing upper cover for covering the opening on the outer saggar is cover board made of refractory material.
Preferably, the refractory material is refractory brick or refractory slab.
Preferably, the packing material is graphite powder.
To ensure the purity of product, lithium cell cathode material cannot be contacted in high temperature sintering with oxygen.In order to ensure casket
The leakproofness of alms bowl internal material, be equipped in the top of interior saggar with the graphite cover board that is adapted of being open thereon, and made with graphite powder
For packing material, to carry out double-deck insulation blocking to saggar internal material.Sintering when, as packing material graphite powder and
Graphite in graphite cover can be reacted with the residual oxygen inside kiln, it is ensured that inside kiln, not have oxygen inside saggar especially
Gas.Inventor has found, when being sintered using the kiln car of the utility model, material can be also realized without using nitrogen atmosphere protection
Safety sintering, material will not be aoxidized.
Advantageous effect：
（1）Due to substituting the stainless steel casket of existing kiln car saggar using the superior refractory material saggar of high temperature resistance
Alms bowl.The utility model kiln car can be sintered at 500 ~ 1250 DEG C, and the carbonization time of lithium cell cathode material is made to obtain pole
The shortening of the earth, production efficiency are improved, so as to increase substantially lithium cell cathode material；
（2）The saggar of the kiln car of the utility model uses the sealing upper cover of graphite material, and uses graphite powder as filling
Material can effectively ensure the air-tightness inside saggar, ensure that saggar internal material is not oxidized；
（3）It is protected when being sintered using the kiln car of the utility model without filling nitrogen in kiln, Neng Gouyou
Effect reduces production cost.
Description of the drawings
Below in conjunction with Figure of description and specific embodiment, the utility model is further described.
Fig. 1 is the structural representation currently with used kiln car during carbonization tunnel kiln sintering lithium cell cathode material
Figure；
Fig. 2 is the structure diagram of the high temperature resistant kiln car of the utility model；
The top view of the saggar of the high temperature resistant kiln car of Fig. 3 positions the utility model（Sealing upper cover is not shown）.
Reference numeral：The outer saggar of 1- stainless steels；Saggar in 2- graphite；3- packing materials；The outer saggar sealing upper covers of 4-；5- kilns
Vehicle main body；Saggar seals upper cover in 6-；The outer saggar of 7- refractory materials.
Specific embodiment
It is described that lithium is loaded in tunnel oven in a kind of preferred embodiment of the utility model as shown in Fig. 2 ~ 3
The high temperature resistant kiln car of cell negative electrode material includes kiln car main body 5 and two saggars 6 being loaded in the kiln car main body.Saggar 6
For double-layer structure, including saggar 2 in saggar outside refractory material 7 and graphite on its interior.It is opened on the outer saggar 7 of refractory material
It is stamped outer saggar sealing upper cover 4 made of refractory material at mouthful, the upper opening of saggar 2 is stamped as the sealing of interior saggar in graphite
The graphite cover board of upper cover 6.It is filled with packing material 3, the packing material between saggar 2 in the outer saggar 7 of refractory material and graphite
Graphite powder.Refractory material is refractory slab.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
It says, can still modify to the technical solution recorded in previous embodiment or which part technical characteristic is carried out
Equivalent substitution, within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should all wrap
It is contained within the scope of protection of the utility model.
Claims (5)
1. a kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven, including kiln car main body and is loaded in the kiln
At least one saggar in vehicle main body, the saggar be double-layer structure, including outer saggar and interior saggar, the outer saggar and
The upper opening of interior saggar is stamped sealing upper cover, and filled with packing material between the outer saggar and interior saggar, it is described
Interior saggar be saggar in graphite, it is characterised in that：The outer saggar is built using refractory material.
2. the high temperature resistant kiln car according to claim 1 that lithium cell cathode material is loaded in tunnel oven, it is characterised in that：
The sealing upper cover for covering the opening on the interior saggar is graphite cover board.
3. the high temperature resistant kiln car according to claim 1 that lithium cell cathode material is loaded in tunnel oven, it is characterised in that：
The sealing upper cover for covering the opening on the outer saggar is cover board made of refractory material.
4. the high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven according to claim 1 or 3, feature exist
In：The refractory material is refractory brick or refractory slab.
5. the high temperature resistant kiln car according to claim 1 that lithium cell cathode material is loaded in tunnel oven, it is characterised in that：
The packing material is graphite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867606.4U CN207456192U (en) | 2017-07-18 | 2017-07-18 | A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867606.4U CN207456192U (en) | 2017-07-18 | 2017-07-18 | A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207456192U true CN207456192U (en) | 2018-06-05 |
Family
ID=62247642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720867606.4U Active CN207456192U (en) | 2017-07-18 | 2017-07-18 | A kind of high temperature resistant kiln car that lithium cell cathode material is loaded in tunnel oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207456192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320297A (en) * | 2018-10-27 | 2019-02-12 | 景德镇陶瓷大学 | A kind of medium temperature secret colour ware glaze and its application method prepared using pine ash |
| CN114353536A (en) * | 2021-12-02 | 2022-04-15 | 广州小鹏汽车科技有限公司 | Roasting sagger and electrode roasting method |
-
2017
- 2017-07-18 CN CN201720867606.4U patent/CN207456192U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320297A (en) * | 2018-10-27 | 2019-02-12 | 景德镇陶瓷大学 | A kind of medium temperature secret colour ware glaze and its application method prepared using pine ash |
| CN114353536A (en) * | 2021-12-02 | 2022-04-15 | 广州小鹏汽车科技有限公司 | Roasting sagger and electrode roasting method |
| CN114353536B (en) * | 2021-12-02 | 2024-04-16 | 广州小鹏汽车科技有限公司 | Roasting sagger and electrode roasting method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190916 Address after: 528000 No. 21, Industrial Road, Dafucun North Industrial Zone, Zhangcha Street, Chancheng District, Foshan City, Guangdong Province (Residence Declaration) Patentee after: Foshan Tian Lu Intelligent Equipment Technology Co., Ltd. Address before: 528000 No. 13 purple Lake Road, Hu Jing Road, Chancheng District, Foshan, Guangdong Patentee before: Shen Shu Cheng |