CN210595289U - Preparation device of carbon-silicon composite material - Google Patents
Preparation device of carbon-silicon composite material Download PDFInfo
- Publication number
- CN210595289U CN210595289U CN201921162518.XU CN201921162518U CN210595289U CN 210595289 U CN210595289 U CN 210595289U CN 201921162518 U CN201921162518 U CN 201921162518U CN 210595289 U CN210595289 U CN 210595289U
- Authority
- CN
- China
- Prior art keywords
- graphite
- inlet
- carbon
- supply port
- silicon
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Silicon Compounds (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model provides a preparation facilities of carbon-silicon composite. The preparation device comprises a polycrystalline silicon preparation device, a graphite supply device, a mixing device and a roasting unit, wherein the polycrystalline silicon preparation device is provided with an amorphous silicon powder supply port for supplying amorphous silicon powder; the graphite supply device is provided with a graphite supply port for supplying graphite; the material mixing device is provided with a feed inlet and a material mixing outlet, the feed inlet is respectively communicated with the amorphous silicon powder supply port and the graphite supply port, and the feed inlet is also used for adding a carbon source and an organic solvent; the roasting unit is provided with a mixing inlet, and a mixing outlet is communicated with the mixing inlet through a mixing conveying pipeline. The carbon-silicon composite material prepared by the preparation device has smaller silicon source volume expansion rate and larger battery capacity. In addition, the preparation device also has the advantages of short flow, low energy consumption, environmental friendliness and the like.
Description
Technical Field
The utility model relates to a polycrystalline silicon production field particularly, relates to a carbon-silicon composite's preparation facilities.
Background
At present, the main factors limiting the increase of the battery capacity are that the capacity of the commonly used carbon negative electrode material is too low to enable the battery capacity to reach relevant regulations, the battery capacity can reach the requirements only by adopting a novel negative electrode material with higher capacity, and in all negative electrode materials, the silicon-carbon composite material is most hopeful to replace the carbon negative electrode material. Therefore, the development of low-cost, high-capacity silicon-carbon composite materials is a current hot topic.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a carbon-silicon composite's preparation facilities to there is the great problem of silicon material volume expansion in solving current silicon negative electrode material.
In order to achieve the above object, according to the present invention, there is provided a carbon-silicon composite material manufacturing apparatus, comprising a polysilicon manufacturing apparatus, a graphite supply apparatus, a mixing apparatus, and a baking unit, the polysilicon manufacturing apparatus being provided with an amorphous silicon powder supply port for supplying amorphous silicon powder; the graphite supply device is provided with a graphite supply port for supplying graphite; the material mixing device is provided with a feed inlet and a material mixing outlet, the feed inlet is respectively communicated with the amorphous silicon powder supply port and the graphite supply port, and the feed inlet is also used for adding a carbon source and an organic solvent; the roasting unit is provided with a mixing inlet, and a mixing outlet is communicated with the mixing inlet through a mixing conveying pipeline.
Further, the firing unit includes: the device comprises a roasting device and a grinding and screening device, wherein the roasting device is provided with a material mixing inlet and a roasted product outlet; and the grinding and screening device is provided with a roasted product inlet which is communicated with the roasted product outlet.
Further, grind screening plant and be provided with the export of screening material, above-mentioned preparation facilities still includes the washing unit, and the washing unit includes: the device comprises a hydrofluoric acid supply device, a washing device and a filtering device, wherein the hydrofluoric acid supply device is provided with a hydrofluoric acid supply port; the washing device is provided with a washing liquid inlet, a screening material inlet and a washing material outlet, the screening material inlet is communicated with the screening material outlet, and the washing liquid inlet is communicated with a hydrofluoric acid supply port; and the filtering device is provided with a washing material inlet which is communicated with the washing material outlet.
Furthermore, filter equipment is provided with the solid phase export, and above-mentioned washing unit still includes drying device, and drying device sets up and waits to dry the material entry, waits to dry the material entry and is linked together the solid phase export for dry through the material of solid phase export exhaust.
Further, the roasting unit is also provided with a temperature control device, and the temperature control device is used for controlling the temperature in the roasting device.
Further, the preparation device also comprises a feeding metering device, and the feeding metering device is used for controlling the feeding amount of the amorphous silicon powder, the graphite, the carbon source and the organic solvent.
Furthermore, the preparation device also comprises a carbon source supply device and a first control valve, wherein the carbon source supply device is provided with a carbon source supply port, the carbon source supply port is communicated with the feed port through a carbon source supply pipeline, the first control valve is arranged on the carbon source supply pipeline, and the first control valve is electrically connected with the feed metering device.
Furthermore, the preparation device also comprises an organic solvent supply device and a second control valve, wherein the organic solvent supply device is provided with an organic solvent supply port, the organic solvent supply port is communicated with the feed port through an organic solvent supply pipeline, the second control valve is arranged on the organic solvent supply pipeline, and the second control valve is electrically connected with the feed metering device.
Furthermore, the silicon powder supply port is communicated with the feeding port through a silicon powder supply pipeline, the preparation device comprises a third control valve, the third control valve is arranged on the silicon powder supply pipeline, and the third control valve is electrically connected with the feeding metering device.
Further, the graphite supply port is communicated with the charging port through a graphite supply pipeline, the preparation device comprises a fourth control valve, the fourth control valve is arranged on the graphite supply pipeline, and the fourth control valve is electrically connected with the charging metering device.
By applying the technical scheme of the utility model, in the preparation device of the carbon-silicon composite material, the silicon powder supplied in the polysilicon preparation device is generated in a gas phase environment, the particle diameter is more uniform than the particle diameter obtained by ball milling, and the coating is very suitable, so that the volume change of the silicon in the application process of the carbon-silicon composite material is relatively small; meanwhile, when the graphite provided by the graphite device is added into the mixing device, the graphite is a continuous conductive phase, and the added graphite can play a role in inhibiting the volume expansion of silicon. Under the two reasons, the carbon-silicon composite material prepared by the preparation device has smaller silicon source volume expansion rate and larger battery capacity. In addition, the preparation device also has the advantages of short flow, low energy consumption, environmental friendliness and the like.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram illustrating an apparatus for preparing a carbon-silicon composite material according to an exemplary embodiment of the present invention; and
fig. 2 shows a flow chart of a preparation process of a carbon-silicon composite material prepared by using the preferred preparation device of the carbon-silicon composite material of the present invention.
Wherein the figures include the following reference numerals:
11. a polysilicon preparation device; 12. a graphite supply device; 13. a carbon source supply device; 14. an organic solvent supply device;
20. a mixing device;
30. a roasting unit; 31. a roasting device; 32. grinding and screening devices;
40. a washing unit; 41. a hydrofluoric acid supply device; 42. a washing device; 43. a filtration device; 44. and a drying device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail with reference to examples.
As described in the background art, the conventional silicon negative electrode material has a problem that the volume expansion of the silicon material is large. In order to solve the above technical problem, the present application provides a preparation apparatus of a carbon-silicon composite material, as shown in fig. 1, the preparation apparatus including: a polycrystalline silicon preparation device 11, a graphite supply device 12, a mixing device 20 and a roasting unit 30. The polycrystalline silicon preparation device 11 is provided with an amorphous silicon powder supply port for supplying amorphous silicon powder; the graphite supply device 12 is provided with a graphite supply port for supplying graphite; the mixing device 20 is provided with a feed inlet and a mixing outlet, the feed inlet is respectively communicated with an amorphous silicon powder supply port and a graphite supply port, the feed inlet is also used for adding a carbon source and an organic solvent, the roasting unit 30 is provided with a mixing inlet, and the mixing outlet is communicated with the mixing inlet through a mixing conveying pipeline.
In the preparation device of the carbon-silicon composite material, the silicon powder supplied in the polysilicon preparation device 11 is generated in a gas phase environment, the particle diameter is generally 1-300 nm larger than the particle diameter obtained by ball milling, and the carbon-silicon composite material is very suitable for coating, so that the volume change of silicon in the application process of the carbon-silicon composite material is relatively small, and the preparation cost is favorably reduced; meanwhile, when the graphite provided by the graphite device is added into the mixing device 20, the graphite is a continuous conductive phase, and the added graphite can play a role in inhibiting volume expansion of a silicon source. Under the two reasons, the carbon-silicon composite material prepared by the preparation device has smaller silicon volume expansion rate and larger battery capacity. In addition, the preparation device also has the advantages of short flow, low energy consumption, environmental friendliness and the like.
The preparation device adopting the carbon-silicon composite material is beneficial to reducing the volume expansion rate of silicon. In a preferred embodiment, as shown in fig. 1, the roasting unit 30 comprises a roasting device 31 and a grinding and screening device 32, the roasting device 31 being provided with a mixing inlet and a roasting product outlet; and the grinding and screening device 32 is provided with a roasted product inlet which is communicated with the roasted product outlet.
The mixed material obtained after mixing by the mixing device 20 is conveyed to the roasting device 31 for roasting, so that the carbon-silicon composite material forms a stable porous structure, and graphite is embedded into the stable porous structure. Due to the existence of the pores, the expansion process of the silicon volume has little influence on the performance of the electrode of the subsequent carbon-silicon-containing composite material. Meanwhile, the carbon-silicon composite material is ground into finer particles through the grinding and screening device 32, so that the influence of the volume expansion of silicon on the performance of the electrode of the subsequent carbon-silicon-containing composite material is further reduced.
In a preferred embodiment, as shown in fig. 1, the grinding and sieving device 32 is provided with a sieved material outlet, the preparation device further comprises a washing unit 40, the washing unit 40 further comprises a hydrofluoric acid supply device 41, a washing device 42 and a filtering device 43, the hydrofluoric acid supply device 41 is provided with a hydrofluoric acid supply port; the washing device 42 is provided with a washing liquid inlet, a screening material inlet and a washing material outlet, the screening material inlet is communicated with the screening material outlet, and the washing liquid inlet is communicated with a hydrofluoric acid supply port; and the filtering device 43 is provided with a washing material inlet which is communicated with the washing material outlet.
And the screened roasting powder is washed by using hydrofluoric acid with strong corrosivity, so that metal and other impurities in a roasting product can be removed, and the purity of the carbon-silicon composite material can be further improved.
In order to remove the cleaning solution, as shown in fig. 1, preferably, the filtering device 43 is provided with a solid phase outlet, and the washing unit 40 further includes a drying device 44, where the drying device 44 is provided with a material inlet to be dried, and the material inlet to be dried is communicated with the solid phase outlet and is used for drying the material discharged through the solid phase outlet.
More preferably, as shown in fig. 1, the drying device 44 is a negative pressure roasting device 31. The negative pressure in the roasting process is beneficial to improving the drying efficiency, and the preparation period is further shortened.
In order to more precisely control the firing temperature in the firing unit 30, as shown in fig. 1, it is preferable that the firing unit 30 is further provided with a temperature control device for controlling the temperature in the firing device 31.
In order to better control the adding amount of the silicon powder, the graphite, the carbon source and the organic solvent, preferably, the preparation device further comprises a feeding metering device, and the feeding metering device is used for controlling the adding amount of the amorphous silicon powder, the graphite, the carbon source and the organic solvent.
In order to further improve the automation degree of the carbon-silicon composite material preparation device, an automatic feeding device can be arranged. The automatic feeding device is not particularly limited in structure as long as the above-described functions can be realized.
In a preferred embodiment, as shown in FIG. 1, the preparation apparatus further comprises a carbon source supply device 13 and a first control valve, the carbon source supply device 13 is provided with a carbon source supply port, the carbon source supply port is communicated with the feed port through a carbon source supply pipeline, the first control valve is arranged on the carbon source supply pipeline, and the third control valve is electrically connected with the feed metering device.
In a preferred embodiment, as shown in fig. 1, the above-mentioned preparation apparatus further comprises an organic solvent supply device 14 and a second control valve, the organic solvent supply device 14 is provided with an organic solvent supply port, the organic solvent supply port is communicated with the feed port through an organic solvent supply line, the second control valve is arranged on the organic solvent supply line, and the second control valve is electrically connected with the feed metering device.
Specifically, as shown in fig. 1, in a preferred embodiment, the preparation device includes a third control valve, the silicon powder supply port is communicated with the feeding port through a silicon powder supply pipeline, the third control valve is arranged on the silicon powder supply pipeline, and the third control valve is electrically connected with the feeding metering device.
In a preferred embodiment, the preparation device comprises a fourth control valve, the graphite supply port is communicated with the feeding port through a graphite supply pipeline, the fourth control valve is arranged on the graphite supply pipeline, and the fourth control valve is electrically connected with the feeding metering device.
Another aspect of the present application also provides a method for preparing a carbon-silicon composite material, as shown in fig. 2, the method comprising: mixing a silicon source, a carbon source, graphite and an organic solvent to obtain a mixture, wherein in the preparation process of the carbon-silicon composite material, the silicon source is nanoscale amorphous silicon powder generated in the production process of polycrystalline silicon; and roasting the mixture under a protective atmosphere to obtain the carbon-silicon composite material.
The silicon source amorphous silicon powder is generated in a gas phase environment, has uniform particle diameter compared with the particle diameter obtained by ball milling, and is very suitable for coating, so that the volume change of the carbon-silicon composite material in the application process is relatively small; meanwhile, the graphite is a continuous conductive phase, and the graphite added in the preparation process can play a role in inhibiting the volume expansion of the silicon source. For the two reasons, the carbon-silicon composite material has a smaller silicon volume expansion rate and a larger battery capacity. In addition, the process also has the advantages of simple flow, low energy consumption, environmental friendliness and the like.
The carbon-silicon composite material prepared by the preparation method has lower silicon volume expansion rate and higher battery capacity. In a preferred embodiment, the weight ratio of the silicon source, the carbon source and the graphite is (1-30): 20-69): 30-50. The weight ratio of the silicon source, the carbon source and the graphite includes, but is not limited to, the above range, and it is preferable to further suppress the volume expansion rate of silicon and improve the battery capacity by limiting the weight ratio to the above range.
The carbon source used in the preparation process of the silicon-carbon composite material can be a carbon source commonly used in the field. Preferably, the carbon source includes, but is not limited to, one or more of the group consisting of pitch, coke, thermally decomposed char, polyvinyl chloride, and glucose, or a solution containing the same. The carbon source has the advantages of low price, easy obtaining and the like, and the carbon source is selected to be beneficial to reducing the cost of the silicon-carbon composite material.
The graphite adopted in the preparation process of the silicon-carbon composite material can be natural graphite or artificial graphite.
The organic solvent used in the preparation process of the silicon-carbon composite material can be an organic solvent commonly used in the field. Preferably, the organic solvent includes, but is not limited to, one or more of the group consisting of tetrahydrofuran, glucose, toluene, and n-hexane.
The carbon source, the silicon source and the graphite are combined more tightly in the roasting process, and active functional groups on the surface of the silicon-carbon material can be removed, so that the capacity of the battery can be improved. In a preferred embodiment, the calcination is carried out at a pressure of-0.2 to 0.2 bar. The roasting process is carried out under negative pressure, so that the discharge efficiency of gas products is improved, the roasting process is improved, and the capacity and the first charge-discharge efficiency of the battery are improved.
The protective atmosphere is a non-oxidizing gas, preferably argon and/or hydrogen.
In a preferred embodiment, the temperature during the roasting process is 600-1300 ℃. Because the specific nanometer amorphous silicon powder is added as a silicon source and the graphite is also added in the process of preparing the carbon-silicon composite material, the roasting temperature is limited in the range due to the particularity of the raw materials, so that the reaction degree in the roasting process is favorably improved, and the volume expansion rate of the silicon source and the battery capacity in the carbon-silicon composite material are favorably reduced. More preferably, the temperature of the roasting process is 850-1200 ℃.
In order to further improve the comprehensive performance of the carbon-silicon composite material, in a preferred embodiment, the preparation method further comprises the steps of sequentially grinding, screening, acid washing and drying a product system of the roasting reaction.
Preferably, the particle size of the solid particles obtained after the screening process is 100-500 μm. The particle size of the solid particles is limited in the range, and the expansion change of the volume of the silicon source is low relative to the total volume of the silicon source in the using process, so that the influence of the silicon source on the battery capacity is small. More preferably, the particle size of the solid particles obtained after the screening process is 100-300 μm.
In a preferred embodiment, the acid used in the acid cleaning process is hydrofluoric acid. And the screened roasting powder is washed by using hydrofluoric acid with strong corrosivity, so that metal and other impurities in a roasting product can be removed, and the purity of the carbon-silicon composite material can be further improved.
In a preferred embodiment, the drying step is carried out at-0.1 to 0bar and 100 to 250 ℃. The drying process is carried out under the conditions, which is favorable for shortening the time of the drying process and further is favorable for shortening the preparation period.
Another aspect of the present application also provides a carbon-silicon composite electrode comprising the above silicon-carbon composite material.
The silicon source amorphous silicon powder is generated in a gas phase environment, has uniform particle diameter compared with the particle diameter obtained by ball milling, and is very suitable for coating, so that the volume change of the carbon-silicon composite material in the application process is relatively small; meanwhile, the graphite is a continuous conductive phase, and the graphite added in the preparation process can play a role in inhibiting the volume expansion of the silicon source. Therefore, the carbon-silicon composite material has a smaller silicon volume expansion rate and a larger battery capacity. On the basis, the electrode containing the carbon-silicon composite material has stable battery capacity and energy density.
In yet another aspect, a battery is provided that includes a carbon-silicon composite electrode provided herein.
Because the electrode containing the carbon-silicon composite material has stable battery capacity and energy density, the battery containing the carbon-silicon composite electrode has stable battery capacity and first charge-discharge efficiency.
The present application is described in further detail below with reference to specific examples, which should not be construed as limiting the scope of the invention as claimed.
In the examples of the present application, a carbon-silicon composite material was prepared using the preparation apparatus shown in fig. 1.
Example 1
The polycrystalline silicon preparation device 11 is used for supplying amorphous silicon powder; the graphite supply device 12 is used to supply graphite.
Screening the collected amorphous silicon powder in a grinding and screening device 32, and mixing the amorphous silicon powder with an organic solvent, ground graphite and carbon in a mixing device 20 to obtain a mixture; the above mixture is put into a roasting device 31 (high temperature furnace) and roasted under a protective atmosphere to obtain a roasted product. And gradually cooling the roasted product to normal temperature, taking out, cleaning, filtering, drying, and putting the obtained solid into a drying box for drying. Grinding the dried solid to meet the requirement, and finally screening to obtain the qualified silicon-carbon composite material.
The specific conditions of this example are as follows:
(1) the amorphous silicon powder is sieved by a 300-mesh sieve, and the qualified powder is reserved.
(2) And (4) screening the ground natural graphite by using a 300-mesh screen, and reserving the qualified powder after screening.
(3) In a mixing device 20, silicon powder, graphite and asphalt are mixed according to a weight ratio of 25:45:30, then the asphalt, the sieved amorphous silicon powder and the graphite are completely dissolved in an organic solvent (tetrahydrofuran), and after uniform stirring, insoluble substances are filtered out to obtain filtrate.
(4) In a roasting device 31, roasting the filtrate at 850 ℃, minus 0.05bar to minus 0.1bar and under the environment of argon gas as protective gas until all the solvent is volatilized to obtain a roasted product solid, and then continuously cooling the roasted product solid to the normal temperature under the argon atmosphere.
(5) Conveying the roasted product to a grinding and screening device 32, and grinding the solid of the roasted product to 200 mu m under argon atmosphere to leave a screened product; the screened product is washed with hydrofluoric acid in a washing device 42 to remove metals and other impurities in the screened qualified powder, and finally filtered by a filtering device 43 to obtain solid powder.
(6) And (4) drying the solid obtained by filtering in the step (5) in a drying device 44 under the conditions of-0.1 bar, 150 ℃ and argon atmosphere, wherein the dried and cooled solid powder is the finished product of the silicon-carbon composite material.
(7) A button cell tester of Kejing company tests the performance of a button cell made of the silicon-carbon negative electrode powder material, and the capacity of the button cell is still more than 1000mAh/g after 1000 cycles.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the carbon-silicon composite material prepared by the preparation device has smaller silicon source volume expansion rate and larger battery capacity. In addition, the preparation device also has the advantages of short flow, low energy consumption, environmental friendliness and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for preparing a carbon-silicon composite material, the device comprising:
the polycrystalline silicon preparation device (11), the polycrystalline silicon preparation device (11) is provided with an amorphous silicon powder supply port for supplying amorphous silicon powder;
a graphite supply device (12), the graphite supply device (12) being provided with a graphite supply port for supplying graphite;
the mixing device (20) is provided with a feeding port and a mixing outlet, the feeding port is respectively communicated with the amorphous silicon powder supply port and the graphite supply port, and the feeding port is also used for adding a carbon source and an organic solvent;
the device comprises a roasting unit (30), wherein the roasting unit (30) is provided with a material mixing inlet, and a material mixing outlet is communicated with the material mixing inlet through a material mixing conveying pipeline.
2. The production device according to claim 1, characterized in that the baking unit (30) comprises:
a roasting device (31), the roasting device (31) being provided with the mixing inlet and a roasted product outlet; and
the grinding and screening device (32), the grinding and screening device (32) is provided with a roasted product inlet, and the roasted product inlet is communicated with the roasted product outlet.
3. A preparation device according to claim 2, characterized in that the grinding and screening device (32) is provided with a screened material outlet, the preparation device further comprising a washing unit (40), the washing unit (40) comprising:
a hydrofluoric acid supply device (41), wherein the hydrofluoric acid supply device (41) is provided with a hydrofluoric acid supply port;
the washing device (42) is provided with a washing liquid inlet, a screening material inlet and a washing material outlet, the screening material inlet is communicated with the screening material outlet, and the washing liquid inlet is communicated with the hydrofluoric acid supply port; and
the filter device (43), filter device (43) is provided with the washing material entry, the washing material entry with the washing material export is linked together.
4. A preparation device according to claim 3, wherein the filtering device (43) is provided with a solid phase outlet, the washing unit (40) further comprising a drying device (44), the drying device (44) being provided with an inlet for the material to be dried, which inlet is in communication with the solid phase outlet for drying the material discharged through the solid phase outlet.
5. A production arrangement according to claim 2, characterized in that the roasting unit (30) is further provided with temperature control means for controlling the temperature in the roasting means (31).
6. The manufacturing apparatus as set forth in any one of claims 1 to 5 further comprising a charge metering device for controlling the charge amounts of the amorphous silicon powder, the graphite, the carbon source and the organic solvent.
7. The apparatus according to claim 6, further comprising a carbon source supply device (13) and a first control valve, wherein the carbon source supply device (13) is provided with a carbon source supply port, the carbon source supply port is communicated with the feed port through a carbon source supply line, the first control valve is provided on the carbon source supply line, and the first control valve is electrically connected with the feed metering device.
8. The manufacturing apparatus according to claim 6, further comprising an organic solvent supply device (14) and a second control valve, wherein the organic solvent supply device (14) is provided with an organic solvent supply port, the organic solvent supply port is communicated with the feed port through an organic solvent supply line, the second control valve is provided on the organic solvent supply line, and the second control valve is electrically connected with the feed metering device.
9. The apparatus according to claim 6, wherein the silicon powder supply port and the charging port are communicated through a silicon powder supply line, the apparatus comprises a third control valve provided on the silicon powder supply line, and the third control valve is electrically connected to the charging metering device.
10. The apparatus according to claim 6, wherein the graphite supply port is in communication with the feed port via a graphite supply line, the apparatus comprises a fourth control valve disposed on the graphite supply line, and the fourth control valve is electrically connected to the feed metering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162518.XU CN210595289U (en) | 2019-07-23 | 2019-07-23 | Preparation device of carbon-silicon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162518.XU CN210595289U (en) | 2019-07-23 | 2019-07-23 | Preparation device of carbon-silicon composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210595289U true CN210595289U (en) | 2020-05-22 |
Family
ID=70711799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921162518.XU Active CN210595289U (en) | 2019-07-23 | 2019-07-23 | Preparation device of carbon-silicon composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210595289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294479A (en) * | 2019-07-23 | 2019-10-01 | 中国恩菲工程技术有限公司 | The preparation facilities of carbon-silicon composite material |
-
2019
- 2019-07-23 CN CN201921162518.XU patent/CN210595289U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294479A (en) * | 2019-07-23 | 2019-10-01 | 中国恩菲工程技术有限公司 | The preparation facilities of carbon-silicon composite material |
| CN110294479B (en) * | 2019-07-23 | 2024-05-28 | 中国恩菲工程技术有限公司 | Preparation device of carbon-silicon composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102013477B (en) | Method for preparing lithium iron phosphate/carbon composite material of lithium ion battery | |
| CN112467067B (en) | Three-dimensional porous silicon-carbon material prepared by purifying photovoltaic silicon mud and preparation method thereof | |
| CN105895873B (en) | A kind of silicon-carbon composite cathode material of lithium ion battery and preparation method and application | |
| CN103326023A (en) | High-performance lithium ion battery silicon-carbon cathode material and preparation method thereof | |
| CN106099105A (en) | A kind of spherical porous artificial plumbago negative pole material | |
| CN112349899B (en) | Silicon-based composite negative electrode material, preparation method thereof and lithium ion battery | |
| CN103165862A (en) | High-performance negative material of lithium ion cell and preparation method of material | |
| CN106848268A (en) | A kind of carbon-silicon composite material, Preparation Method And The Use | |
| CN106169582B (en) | A kind of natural needle coke composite graphite negative electrode material production method | |
| CN101710632A (en) | Method for recovering and restoring anode material graphite of waste lithium ion battery | |
| CN102394287A (en) | Silicon-carbon negative electrode material of lithium ion battery and preparation method thereof | |
| CN112234171B (en) | Silicon-natural graphite composite material, application thereof and method for preparing silicon-natural graphite composite material by catalyzing with trace harmless impurities | |
| CN103030128A (en) | Industrial production method for preparing nanometer lithium iron phosphate by adopting solvent thermal method | |
| CN110416513B (en) | Preparation method of carbon-silicon composite material, carbon-silicon composite electrode and battery comprising carbon-silicon composite electrode | |
| CN210595289U (en) | Preparation device of carbon-silicon composite material | |
| CN111799098A (en) | Porous carbon/metal oxide composite material and preparation method and application thereof | |
| CN110429264A (en) | A method of preparing rice husk base negative electrode material | |
| CN111517317A (en) | Silicon-carbon composite negative electrode material and preparation method thereof | |
| CN102569752A (en) | Carbon modified material for lithium ion secondary battery cathode and preparation method for carbon modified material | |
| CN108417816A (en) | Silicon-carbon cathode material and preparation method thereof with include its electrode | |
| CN108987741B (en) | Nickel cobalt lithium manganate positive electrode material and preparation method thereof | |
| CN107732192A (en) | Used as negative electrode of Li-ion battery Si-C composite material and preparation method thereof | |
| CN110668422A (en) | Porous carbon material prepared from gasified ash, preparation method and application thereof | |
| CN100526218C (en) | Preparation of nano titanium carbide by liquid alkane backflow carbon packaging process | |
| CN107170962A (en) | A kind of lithium ion battery silicium cathode electrode slice and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |