CN207957777U - Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon - Google Patents
Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon Download PDFInfo
- Publication number
- CN207957777U CN207957777U CN201820108948.2U CN201820108948U CN207957777U CN 207957777 U CN207957777 U CN 207957777U CN 201820108948 U CN201820108948 U CN 201820108948U CN 207957777 U CN207957777 U CN 207957777U
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- CN
- China
- Prior art keywords
- plasma
- atomization
- silicon
- plasma generator
- tank body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000889 atomisation Methods 0.000 title claims abstract description 58
- 239000005543 nano-size silicon particle Substances 0.000 title claims abstract description 28
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 235000013312 flour Nutrition 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000003534 oscillatory effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 238000002663 nebulization Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 8
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 239000003708 ampul Substances 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 208000006673 asthma Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Silicon Compounds (AREA)
Abstract
Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon, including atomization tank body, vacuum system, air exchange system, plasma generator, dust feeder, air supply plant and cooling device；Vacuum system and air exchange system are connected with atomization tank body respectively；Dust feeder and air supply plant are connected by powder feeding pipe and snorkel with atomization tank body upper end respectively, and snorkel is set on the outside of powder feeding pipe；Plasma generator includes plasma generator and mounting base, plasma generator is threaded through in mounting base, and can be moved forward and backward along mounting base, the plasma that plasma generator ejects converges at powder feeding pipe exit lower end center to be formed plasma and collects focal area；Atomization tank wall and bottom are respectively arranged with cooling device and flour extraction pipe.The apparatus structure is simple and convenient to operate and the lower silica flour of use cost is as raw material, while the dead angle in the device nebulization region is few, has the characteristics that nebulization efficiency height, silicon nanoparticle good evenness.
Description
Technical field
This practicality is related to a kind of powder by atomization equipment, is prepared more particularly, to the plasma atomization under a kind of vacuum melting high
The device of energy density lithium ion cell nano silicon and its powder by atomization equipment of composition.
Background technology
Silicon is the semi-conducting material being most widely used so far, in integrated circuit, photovoltaic and high-performance
The fields such as battery have had been provided with good industrial foundation.As the application range of lithium ion battery is to hull cell, power electric
The fields such as pond extend, and more stringent requirements are proposed for energy density and service life to battery, to the nanometer as negative material
The requirement of silicon particle also increasingly improves.
CN203333311U discloses a kind of plasma device being used for preparing nano silica fume, which is characterized in that including
Hollow cavity, the air curtain that the cavity upper end is passed through equipped with the feeding port and protective atmosphere entered for silica flour material：The cavity
Inside is divided into upper, middle and lower three parts, and top half is combustion chamber, and middle section is graft reaction chamber, and lower half portion is precipitation chamber：
Quartz ampoule is housed in the combustion chamber, discharge coil is surrounded with outside quartz ampoule, is plasma arc high-temperature area in quartz ampoule：It is described
Quartz ampoule upper end connects feeding port and air curtain into asthma：Plasma arc high-temperature area lower end is located at graft reaction intracavitary, and grafting is anti-
Cavity wall is answered to be equipped with the admission line for being passed through clean property gas and graft reaction gas from outside.The plasma arc high-temperature region of the device
There is certain powder blind area processed in domain, part silicon power raw material can not be with Plasma contact, and influence nano-silicon product
Fineness and the uniformity.
Invention content
This practicality technical problems to be solved are：It overcomes the deficiencies of the prior art and provide plasma atomization and prepares high-energy
The device of density lithium ion cell nano silicon, which is simple and convenient to operate and the lower silica flour of use cost is made
To process raw material, meanwhile, the atomization dead angle in the device nebulization region is few, to which high with nebulization efficiency, silicon nanoparticle is equal
The good feature of evenness.
Technical solution is used by this practicality solves its technical problem：Plasma atomization prepares high energy density lithium ion
The device of cell nano silicon, including：Atomization tank body, air exchange system, plasma generator, dust feeder, is sent vacuum system
Device of air and cooling device；The vacuum system and air exchange system are connected with atomization tank body respectively；It the dust feeder and send
Device of air is connected by powder feeding pipe and snorkel with atomization tank body upper end respectively, and the snorkel is set in outside powder feeding pipe
Side；The plasma generator includes plasma generator and mounting base, and the mounting base is set in a manner of circumferentially uniformly distributed
It sets above atomization tank body, the plasma generator is threaded through in mounting base, and can be moved forward and backward along mounting base, described etc.
The plasma that ion generator ejects converges at powder feeding pipe exit lower end center to be formed plasma and collects focal area；It is described
Cooling device is arranged on the side wall of atomization tank body；The atomization tank base is provided with flour extraction pipe.
In the above scheme, silicon power raw material is sprayed to plasma by dust feeder and collects focal area, silicon power raw material
It is instantly melted in the region, and by plasma high speed impact aerosol dispersion at fine droplets, drop is blown out in air supply plant
It scatters under the action of air-flow and gravity, meanwhile, the drop to scatter is cooled to nano-silicon by the cooling gas that air interchanger is blown into
Particle；Finally, after silicon nanoparticle is fallen on atomization tank wall face, it is atomized cooling device secondary cooling in tank wall, most
It is discharged afterwards by flour extraction pipe.
Further, the quantity of the plasma generator is 2 ~ 6 groups.By multiple plasma generators to central-injection
It forming plasma and collects focal area, this form to spray can eliminate the atomization dead angle in the region to greatest extent, from
And ensure the fineness and the uniformity of powder processed.
Further, the plasma generator is connected by screw-type regulating device with mounting base, the mounting base inner wall
It is provided with the sealing element to fit with plasma generator.Plasma generator can be adjusted by screw-type regulating device pacifying
The front and back position on seat is filled, to coordinate the working law size for changing plasma generator, plasma can be adjusted and collected
The size of focal area, to ensure atomizing effect and control nebulization efficiency.
Further, the atomization tank wall is provided with oscillatory type blanking device, the oscillatory type powder blanking device packet
Include oscillating plate, flexible connector, vibration generating arrangement and control device：The oscillating plate is mounted on vacuum by flexible connector
On inner wall below atomisation tower, and it is connect with vibration generating arrangement：The control device is occurred by wired or wireless with vibration
Device is electrically connected.Oscillating plate can drive atomization tank wall to vibrate, so as to protect under the driving of vibration generating arrangement
Card silicon nanoparticle will not be deposited on atomization tank wall.
Further, it is provided with filter screen on the flour extraction pipe.The filter screen in suitable aperture is set, can say size not
Qualified silicon nanoparticle filtering, anyway it enters subsequent handling.
Further, the cooling device is the dish type water pipe being embedded in atomization tank wall, is atomized up and down the two of tank body
Side is respectively arranged with cooling water inlet and cooling water outlet, and the cooling water inlet and cooling water outlet form water with dish type water pipe
Cycle.
This practicality plasma atomization prepares the advantageous effect of the device of lithium ion battery with high energy density nano-silicon：The dress
The lower silica flour conduct of simple in structure, easy to operate and use cost is set to process raw material, meanwhile, in the device nebulization region
It is few to be atomized dead angle, to have the characteristics that nebulization efficiency height, silicon nanoparticle good evenness.
Description of the drawings
Fig. 1-plasma atomizations of the present invention prepare the structural representation of the device of lithium ion battery with high energy density nano-silicon
Figure；
Fig. 2-plasma atomizations of the present invention prepare the structural representation of the device of lithium ion battery with high energy density nano-silicon
Figure；
Fig. 3-is the structural schematic diagram of plasma generator in Fig. 1.
In figure：1-atomization tank body, 2-vacuum systems, 3-snorkels, 4-powder feeding pipes, 5-plasma generators, 6-
Mounting base, 7-air exchange systems, 8-flour extraction pipes, 9-vibration generating arrangements, 10-flexible connectors, 11-oscillating plates, 12-disks
Shape water pipe, 51-screw-type regulating devices, 52-sealing elements, 81-filter screens.
Specific implementation mode
This practicality is described further with reference to the accompanying drawings and embodiments.
Referring to Fig.1 ~ 3：Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon, including：Atomization
Tank body 1, vacuum system 2, air exchange system 7, plasma generator, dust feeder, air supply plant and cooling device；The vacuum
System 2 and air exchange system 7 are connected with atomization tank body 1 respectively；The dust feeder and air supply plant pass through 4 He of powder feeding pipe respectively
Snorkel 3 is connected with 1 upper end of atomization tank body, and the snorkel 3 is set in 4 outside of powder feeding pipe；The plasma fills
It sets including plasma generator 5 and mounting base 6, the mounting base 6 is arranged in a manner of circumferentially uniformly distributed on atomization tank body 1
Side, the plasma generator 5 is threaded through in mounting base 6, and can be moved forward and backward along mounting base 6, the plasma generator 5
The plasma ejected converges at 4 exit lower end center of powder feeding pipe to be formed plasma and collects focal area；The cooling device
It is arranged on the side wall of atomization tank body 1；1 bottom of atomization tank body is provided with flour extraction pipe 8.
In the above scheme, silicon power raw material is sprayed to plasma by dust feeder and collects focal area, silicon power raw material
It is instantly melted in the region, and by plasma high speed impact aerosol dispersion at fine droplets, drop is blown out in air supply plant
It scatters under the action of air-flow and gravity, meanwhile, the drop to scatter is cooled to nano-silicon by the cooling gas that air interchanger is blown into
Particle；Finally, after silicon nanoparticle is fallen on atomization 1 wall surface of tank body, it is atomized cooling device secondary cooling in 1 side wall of tank body,
Finally it is discharged by flour extraction pipe 8.
The quantity of the plasma generator is 2 ~ 6 groups.It is formed to central-injection by multiple plasma generators 5
Gas ions collect focal area, and this form to spray can eliminate the atomization dead angle in the region to greatest extent, to ensure
The fineness and the uniformity of powder processed.
The plasma generator 5 is connected by screw-type regulating device 51 with mounting base 6, and 6 inner wall of the mounting base is set
It is equipped with the sealing element 52 to fit with plasma generator 5.Plasma generator 5 can be adjusted by screw-type regulating device 51
Front and back position in mounting base 6 can adjust plasma to coordinate the working law size for changing plasma generator 5
Body collects the size of focal area, to ensure atomizing effect and control nebulization efficiency.
1 side wall of atomization tank body is provided with oscillatory type blanking device, and the oscillatory type powder blanking device includes vibration
Plate 11, flexible connector 10, vibration generating arrangement 9 and control device：The oscillating plate 11 is mounted on by flexible connector 10
On inner wall below vacuum atomizing tower, and it is connect with vibration generating arrangement 9：The control device passes through wired or wireless and vibration
Generator is electrically connected.Oscillating plate 11 can drive atomization 1 side wall of tank body to vibrate under the driving of vibration generating arrangement 9, from
And can ensure silicon nanoparticle will not be deposited on atomization 1 side wall of tank body.
Filter screen 81 is provided on the flour extraction pipe 8.The filter screen 81 in suitable aperture is set, can be said off size
The silicon nanoparticle of lattice filters, anyway it enters subsequent handling.
The cooling device is the dish type water pipe 12 being embedded in atomization 1 side wall of tank body, the both sides up and down point of atomization tank body 1
It is not provided with cooling water inlet and cooling water outlet, the cooling water inlet and cooling water outlet form water with dish type water pipe 12 and follow
Ring.
Claims (6)
1. plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon, which is characterized in that including atomization tank
Body, vacuum system, air exchange system, plasma generator, dust feeder, air supply plant and cooling device；The vacuum system
It is connected respectively with atomization tank body with air exchange system；The dust feeder and air supply plant respectively by powder feeding pipe and snorkel with
Atomization tank body upper end is connected, and the snorkel is set on the outside of powder feeding pipe；The plasma generator includes plasma
Generator and mounting base, the mounting base are arranged in a manner of circumferentially uniformly distributed above atomization tank body, and the plasma occurs
Device is threaded through in mounting base, and can be moved forward and backward along mounting base, and the plasma that the plasma generator ejects is in powder feeding
Converge at pipe exit lower end center and to form plasma and collect focal area；The side wall in atomization tank body is arranged in the cooling device
On；The atomization tank base is provided with flour extraction pipe.
2. plasma atomization as described in claim 1 prepares the device of lithium ion battery with high energy density nano-silicon, feature
It is, the quantity of the plasma generator is 2 ~ 6 groups.
3. plasma atomization as claimed in claim 1 or 2 prepares the device of lithium ion battery with high energy density nano-silicon, special
Sign is that the plasma generator is connected by screw-type regulating device with mounting base, the mounting base inner wall be provided with
The sealing element that plasma generator fits.
4. plasma atomization as claimed in claim 1 or 2 prepares the device of lithium ion battery with high energy density nano-silicon, special
Sign is that the atomization tank wall is provided with oscillatory type blanking device, and the oscillatory type blanking device includes oscillating plate, elasticity
Connector, vibration generating arrangement and control device：The oscillating plate is mounted on by flexible connector below vacuum atomizing tower
On inner wall, and it is connect with vibration generating arrangement：The control device is electrically connected by wired or wireless with vibration machine.
5. plasma atomization as claimed in claim 4 prepares the device of lithium ion battery with high energy density nano-silicon, feature
It is, filter screen is provided on the flour extraction pipe.
6. plasma atomization as claimed in claim 1 or 2 prepares the device of lithium ion battery with high energy density nano-silicon, special
Sign is that the cooling device is the dish type water pipe being embedded in atomization tank wall, and the both sides up and down for being atomized tank body are set respectively
It is equipped with cooling water inlet and cooling water outlet, the cooling water inlet and cooling water outlet form water cycle with dish type water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108948.2U CN207957777U (en) | 2018-01-23 | 2018-01-23 | Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108948.2U CN207957777U (en) | 2018-01-23 | 2018-01-23 | Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207957777U true CN207957777U (en) | 2018-10-12 |
Family
ID=63734656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820108948.2U Withdrawn - After Issue CN207957777U (en) | 2018-01-23 | 2018-01-23 | Plasma atomization prepares the device of lithium ion battery with high energy density nano-silicon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207957777U (en) |
-
2018
- 2018-01-23 CN CN201820108948.2U patent/CN207957777U/en not_active Withdrawn - After Issue
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181012 Effective date of abandoning: 20231215 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181012 Effective date of abandoning: 20231215 |