CN206461031U - Strength fluidized CVD device - Google Patents
Strength fluidized CVD device Download PDFInfo
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- CN206461031U CN206461031U CN201720149041.6U CN201720149041U CN206461031U CN 206461031 U CN206461031 U CN 206461031U CN 201720149041 U CN201720149041 U CN 201720149041U CN 206461031 U CN206461031 U CN 206461031U
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- airflow inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of strength fluidized CVD device, including mixing bunker, mixing bunker is provided with inlet valve provided with two material inlets on the feed pipe that two material inlets are connected respectively；Airflow inlet and air stream outlet are respectively arranged with mixing bunker, air-introduced machine is provided between air stream outlet and airflow inlet, air stream outlet is connected to the import of air-introduced machine by pipeline, and airflow inlet is connected to the outlet of air-introduced machine by pipeline；It is connected with pipeline between the outlet of air-introduced machine and airflow inlet on discharge nozzle, discharge nozzle and is provided with outlet valve；Control valve is installed on the pipeline between discharge nozzle and airflow inlet, is connected with the pipeline between control valve and airflow inlet on bypass line, bypass line and is provided with by-passing valve.Strength fluidized CVD device covered effect of the present utility model is good and pollution is not resulted in environment.
Description
Technical field
The utility model is related to material lithium ion battery negative material field, specifically, is related to a kind of strength fluidization
Coating unit.
Background technology
The negative material of lithium ion battery has graphite, carbon and metal oxide etc., and graphite is current lithium ion battery
The most frequently used negative material, during lithium ion battery charges, can react generation LiC6 compound, it is theoretical with Li+
Specific capacity is 372mAh/g, and current capacity highest graphite cathode material actual specific capacity is 360mAh/g, already close to theory
Capacity, and most of graphite cathode material specific capacities are generally 300mAh/g, specific capacity is relatively low.
In order to overcome the shortcomings of graphite material specific capacity is low, real density is low and compatibility of electrolyte is poor, pitch bag is utilized
Cover to be modified graphite material and turn into the focus of graphite cathode material research in recent years.Traditional asphalt coated graphite material
Method be essentially divided into three kinds：That is solid phase mixing, liquid phase mixing and vapour deposition.But existing three kinds of method for coating are deposited
In defect.The production method of solid phase mixing is simple, but production process quality is not easily controlled, and particularly pitch micro mist cladding is complete
Whole property is difficult to ensure that；The condition of vapour deposition is harsher, and cost is higher, does not possess industrialized condition also at present；Liquid phase is mixed
During cladding, pitch is dissolved in organic solvent, then mixed, by 400-500 DEG C of high-temperature process, evaporation solvent forms middle
Phase pitch, is coated to graphite, removes the processes such as light asphalt, solvent, then carbonization treatment, is formed and wrapped on carbon particle surface
Cover carbon, the negative material good cycle that this method is obtained, but this method complex disposal process, pyroreaction kettle operation fiber crops
Tired, production cost is higher and environment is polluted larger.
Utility model content
Technical problem to be solved in the utility model is：There is provided a kind of covered effect good and dirt is not resulted in environment
The strength fluidized CVD device of dye.
In order to solve the above technical problems, the technical solution of the utility model is：
Strength fluidized CVD device, including mixing bunker, the mixing bunker enter provided with two material inlets, two materials
Inlet valve is provided with the feed pipe that mouth is connected respectively；
Be respectively arranged with airflow inlet and air stream outlet on the mixing bunker, the air stream outlet and the airflow inlet it
Between be provided with air-introduced machine, the air stream outlet is connected to the import of the air-introduced machine by pipeline, and the airflow inlet passes through pipe
Road is connected to the outlet of the air-introduced machine；
It is connected with discharge nozzle, the discharge nozzle and sets on pipeline between the outlet of the air-introduced machine and the airflow inlet
It is equipped with outlet valve；
Control valve, the control valve and the air-flow are installed on the pipeline between the discharge nozzle and the airflow inlet
It is connected with pipeline between import on bypass line, the bypass line and is provided with by-passing valve.
It is preferred that, it is provided with tapering type nozzle at the airflow inlet, the diameter of section of the tapering type nozzle is towards institute
The direction for stating airflow inlet is gradually reduced.
It is preferred that, it is provided with collection feed bin, the discharging on the pipeline between the air-introduced machine outlet and the control valve
Pipe is connected on the collection feed bin.
It is preferred that, the every feed pipe upper end is provided with hopper.
It is preferred that, the airflow inlet and the air stream outlet are separately positioned on the two ends of the mixing bunker.
It is preferred that, the inlet valve, the outlet valve, the control valve and the by-passing valve are automatic valve.
Employ after above-mentioned technical proposal, the beneficial effects of the utility model are：
Lithium ion battery negative material of the present utility model coats coating unit, using a kind of strength fluidization bag of innovation
Coating process, adds mixing bunker by covering material powder and lithium ion battery former material feed powder and mixes, under the influence of air pressure, compound exists
In mixing bunker and high velocity impact, mixing in pipeline, the airflow of formation can not only realize that particle is sufficiently coated, and
Also there is depolymerization, the effect broken up, be evenly coated material, fine and close, high-temperature process and carbonization treatment are carried out afterwards, is made higher
The lithium ion battery negative material of chemical property.Gained negative material has that first charge-discharge efficiency is high, specific capacity is big, circulation
The higher chemical property such as superior performance.Strength fluidized CVD apparatus structure of the present utility model is simple, lithium ion battery
Negative material cladding process is simple, and covered effect is good, effectively reduces production cost, environmentally safe, is adapted to extensive production
Industry metaplasia is produced.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the strength fluidized CVD device in the utility model；
In figure：1st, mixing bunker；2nd, feed pipe；3rd, inlet valve；4th, airflow inlet；5th, tapering type nozzle；6th, air stream outlet；
7th, air-introduced machine；8th, feed bin is collected；9th, discharge valve；10th, control valve；11st, bypass line；12nd, by-passing valve；13rd, discharge nozzle.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Reference picture 1, strength fluidized CVD device of the present utility model, including mixing bunker 1, mixing bunker 1 are provided with two
Inlet valve 3 is provided with material inlet, the feed pipe 2 that two material inlets are connected respectively.
Airflow inlet 4 and air stream outlet 6 are respectively arranged with mixing bunker 1, airflow inlet 4 and air stream outlet 6 are set respectively
At the two ends of mixing bunker 1.Air-introduced machine 7 is provided between air stream outlet 6 and airflow inlet 4, air stream outlet 4 is connected to by pipeline
The import of air-introduced machine 7, airflow inlet 4 is connected to the outlet of air-introduced machine 7 by pipeline.
It is connected with discharge nozzle 13, discharge nozzle 13 and is provided with out on pipeline between the outlet of air-introduced machine 7 and airflow inlet 4
Expect valve 9.
Control valve 10 is installed, between control valve 10 and airflow inlet 4 on the pipeline between discharge nozzle 13 and airflow inlet 4
Pipeline on be connected with bypass line 11, bypass line 11 and be provided with by-passing valve 12.
Tapering type nozzle 5 is provided with wind speed, airflow inlet 4 in order to improve, the diameter of section of tapering type nozzle 5 is towards gas
The direction for flowing into mouth 4 is gradually reduced.
Inlet valve 3, outlet valve 9, control valve 10 and by-passing valve 12 use automatic valve, for example with magnetic valve, can set
Controller is put, makes strength fluidized CVD device automatic running.
As preferred scheme, collection feed bin 8 is provided with the pipeline between the outlet of air-introduced machine 7 and control valve 10, is gone out
Expects pipe 13 is connected on collection feed bin 8.
The every upper end of feed pipe 2 is provided with hopper.Spherical, the appearance at the both ends of mixing bunker 1 can be used by collecting feed bin 8
Face can use arc-shaped outer surface.
Using the lithium ion battery negative material cladding process of strength fluidized CVD device of the present utility model, including with
Lower step：
A, graphite and pitch crushed and drying process respectively, graphite crush after by 300 mesh sieves, extracting screen underflow, drip
Green grass or young crops is crushed to 3~5 μm, generates negative electrode of lithium ion battery former material feed powder and covering material powder, and the particle diameter of covering material powder is less than lithium
The particle diameter of ion battery negative pole former material feed powder；
B, unlatching inlet valve 3, make graphite powder and asphalt powder according to weight ratio 1：0.02~0.05 passes through two respectively
Material inlet adds mixing bunker 1；
C, closing inlet valve 3, opening controlling valve 10 starts air-introduced machine 7, under the gas pressure that air-introduced machine 7 is produced, mixing
Graphite powder and asphalt powder in storehouse 1 is in mixing bunker 1 and pipeline high speed collisional mixing, and asphalt powder is coated on graphite powder surface and its
In distinctive micropore, graphite covered by asphalt material is formed；
After d, the wind-force of relative reduction air-introduced machine 7, closing control valve 10, open by-passing valve 12, graphite covered by asphalt with
Air-flow is discharged by discharge nozzle 13；
E, graphite covered by asphalt sequentially pass through 3000~3500 DEG C of high temperature graphitization processing, and roller kilns carbonization treatment
After be cooled to normal temperature, negative electrode of lithium ion battery covering material is made.
Wherein, for stably discharging, in step c, set on pipeline that can be between the outlet of air-introduced machine 7 and control valve 10
Collection feed bin is put, discharge nozzle 13 is connected on collection feed bin 8, negative electrode of lithium ion battery cladding material is concentrated by collecting feed bin 8
Afterwards as air-flow is discharged by discharge nozzle 13.
Certainly, lithium ion battery negative material cladding process of the present utility model, is not limited solely to pitch for graphite
Cladding, amorphous carbon, amorphous silicon, amorphous silica are to the cladding of carbon, and carbon is to the cladding of metal oxide, together
Sample is applicable, and is had a wide range of application.
Lithium ion battery negative material cladding process of the present utility model, under gas pressure, compound mixing bunker 1 with
And high velocity impact in pipeline, mixing, the airflow of formation can not only realize that particle is fully coated, but also with depolymerization,
The effect broken up, is evenly coated material, fine and close.Gained negative material has that first charge-discharge efficiency is high, specific capacity is big, circulation
The higher chemical property such as superior performance.It is fully able to reach abundant cladding.
Lithium ion battery negative material cladding process of the present utility model, solves solid phase mixing cladding production process quality
It is not easily controlled, the integrality of particularly pitch micro mist cladding is difficult to ensure that, coats uneven, unsound problem.Solid phase is mixed
There is intrinsic dead angle between legitimate device itself and equipment and agitating paddle, even lengthen the mixing cladding time, it is also not possible to reach
To abundant cladding, the waste of the energy and resource is caused.And in lithium ion battery negative material cladding process of the present utility model, gas
Power fluidized CVD flow is carried out inside equipment cavity, and mixing bunker and collection feed bin have unique circular-arc-shaped design, cladding
Uniform force, is fully able to reach abundant cladding, is conducive to saving the energy, reduction production cost, while whole flow process is in equipment
Inside cavity is carried out, completely isolation external contamination factor, and covering material purity is secure.
A lithium ion battery negative material cladding process of the present utility model, without can be realized as using organic solvent again
The abundant cladding of grain, ensure that equipment is continuously run, production cost can be reduced using this method, pollution-free, can solve the problem that
The negative effect that environmental pollution is brought.
Strength fluidized CVD apparatus structure of the present utility model is simple, the letter of lithium ion battery negative material cladding process
Single, equipment failure rate is low, and long-term operating is stable；System is using automatically controlling, and automaticity is high, easy to operate, saves people
Power is configured, and traditional coating assembly line need to typically be equipped with seven to eight people, and strength fluidized CVD production line only needs two people real
Now to the control and operation of whole production line, labour is saved.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, do not depart from the utility model spirit and
On the premise of scope, the utility model also has various changes and modifications, and these changes and improvements both fall within claimed sheet
In the range of utility model.Scope is claimed by appended claims and its equivalent thereof in the utility model.
Claims (6)
1. strength fluidized CVD device, it is characterised in that including mixing bunker, the mixing bunker is provided with two material inlets,
Inlet valve is provided with the feed pipe that two material inlets are connected respectively；
Airflow inlet and air stream outlet are respectively arranged with the mixing bunker, is set between the air stream outlet and the airflow inlet
Air-introduced machine is equipped with, the air stream outlet is connected to the import of the air-introduced machine by pipeline, and the airflow inlet is connected by pipeline
It is connected to the outlet of the air-introduced machine；
It is connected with discharge nozzle, the discharge nozzle and is provided with pipeline between the outlet of the air-introduced machine and the airflow inlet
Outlet valve；
Control valve, the control valve and the airflow inlet are installed on the pipeline between the discharge nozzle and the airflow inlet
Between pipeline on be connected with bypass line, the bypass line and be provided with by-passing valve.
2. strength fluidized CVD device as claimed in claim 1, it is characterised in that：It is provided with the airflow inlet tapered
Formula nozzle, the direction of diameter of section towards the airflow inlet of the tapering type nozzle is gradually reduced.
3. strength fluidized CVD device as claimed in claim 1 or 2, it is characterised in that：Air-introduced machine outlet with it is described
Collection feed bin is provided with pipeline between control valve, the discharge nozzle is connected on the collection feed bin.
4. strength fluidized CVD device as claimed in claim 3, it is characterised in that：The every feed pipe upper end is set
There is hopper.
5. strength fluidized CVD device as claimed in claim 3, it is characterised in that：The airflow inlet and the air-flow go out
Mouth is separately positioned on the two ends of the mixing bunker.
6. strength fluidized CVD device as claimed in claim 3, it is characterised in that：The inlet valve, the outlet valve, institute
It is automatic valve to state control valve and the by-passing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720149041.6U CN206461031U (en) | 2017-02-18 | 2017-02-18 | Strength fluidized CVD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720149041.6U CN206461031U (en) | 2017-02-18 | 2017-02-18 | Strength fluidized CVD device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206461031U true CN206461031U (en) | 2017-09-01 |
Family
ID=59691114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720149041.6U Withdrawn - After Issue CN206461031U (en) | 2017-02-18 | 2017-02-18 | Strength fluidized CVD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206461031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602045A (en) * | 2017-02-18 | 2017-04-26 | 山东六聚新材料科技有限公司 | Pneumatic fluidized coating device and lithium ion battery cathode material coating process |
| CN114497548A (en) * | 2022-01-28 | 2022-05-13 | 佛山市德方纳米科技有限公司 | Nanoscale cathode material, preparation method and preparation device thereof and lithium ion battery |
-
2017
- 2017-02-18 CN CN201720149041.6U patent/CN206461031U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602045A (en) * | 2017-02-18 | 2017-04-26 | 山东六聚新材料科技有限公司 | Pneumatic fluidized coating device and lithium ion battery cathode material coating process |
| CN106602045B (en) * | 2017-02-18 | 2023-08-01 | 潍坊正远粉体工程设备有限公司 | Pneumatic fluidization coating device and coating process for lithium ion battery cathode material |
| CN114497548A (en) * | 2022-01-28 | 2022-05-13 | 佛山市德方纳米科技有限公司 | Nanoscale cathode material, preparation method and preparation device thereof and lithium ion battery |
| CN114497548B (en) * | 2022-01-28 | 2023-10-03 | 佛山市德方纳米科技有限公司 | Nanoscale positive electrode material, preparation method and preparation device thereof and lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20230801 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20230801 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |