CN220026807U - Wet coating system for anode material - Google Patents
Wet coating system for anode material Download PDFInfo
- Publication number
- CN220026807U CN220026807U CN202320806916.0U CN202320806916U CN220026807U CN 220026807 U CN220026807 U CN 220026807U CN 202320806916 U CN202320806916 U CN 202320806916U CN 220026807 U CN220026807 U CN 220026807U
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- China
- Prior art keywords
- kettle
- solvent
- branch tube
- cauldron
- wet coating
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- 238000000576 coating method Methods 0.000 title claims abstract description 72
- 239000011248 coating agent Substances 0.000 title claims abstract description 68
- 239000010405 anode material Substances 0.000 title abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000005253 cladding Methods 0.000 claims description 20
- 239000010406 cathode material Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000007774 positive electrode material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000011261 inert gas Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model belongs to the technical field of production of anode materials, and discloses a wet coating system for the anode materials, which comprises a coating kettle and a solvent collecting kettle, wherein the coating kettle is connected with the solvent collecting kettle through a condensing pipe, a heating unit is arranged on the coating kettle, an annular air jet pipe is arranged at the kettle bottom of the coating kettle, a plurality of air jet holes are formed in the air jet pipe, and the air jet pipe is connected with an inert gas source arranged outside. According to the utility model, in the anode material wet coating system, liquid is vaporized by heating and enters the solvent collecting kettle for recovery, inert gas is sprayed out by the annular air nozzle to rapidly take away the heated liquid, so that the solid-liquid separation efficiency is accelerated, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of production of anode materials, and particularly relates to a wet coating system for an anode material.
Background
The conventional coating method of the cathode material is roughly divided into two types, one is dry coating and the other is wet coating; the dry coating method has the advantages of convenience, rapidness and low energy consumption, is suitable for the production and application of wide lithium battery anode materials, but has poor coating effect, and is not suitable for anode materials with high performance requirements.
The wet coating has the advantages of good coating effect, suitability for production and application of high-precision lithium battery anode materials, and realization of solid-phase and liquid-phase coating, so the wet coating is named.
Chinese patent 202121592637.6 discloses wet coating equipment for producing lithium ion battery cathode materials, which comprises a tank body, a transmission motor is arranged on the outer wall of the top of the tank body, a transmission shaft which is connected with the transmission motor and penetrates through the interior of the tank body, a propeller is arranged below the transmission shaft, the tank body is of a double-layer structure, a baffle is arranged on the inner side wall of the inner layer of the tank body, the mixing time can be shortened, meanwhile, materials are more uniformly mixed, a channel is formed between the inner layer of the tank body and the outer layer of the tank body, a heating medium is communicated in the channel, a heating medium outlet and a heating medium inlet are formed in the outer layer of the tank body, a feeding pipe and a PH value adjusting liquid inlet pipe are arranged at the top of the tank body, an additive pipe, a temperature probe and a viewing mirror are arranged at the bottom of the tank body, a pipeline of the discharging port is connected with a slurry discharging pump, and an outlet of the slurry discharging pump is connected with a membrane filtering device and a demagnetizing device.
The wet coating device disclosed in the above patent only discloses how to mix and coat by wet method, and discloses that the mixed solid phase and liquid phase are discharged together from a pipeline of a discharge port, and the process passes through a membrane filtering device and a demagnetizing device; that is, the above patent does not separate the solid phase from the liquid phase after wet coating, and requires an additional process for performing the solid-liquid separation, which may result in a decrease in the production efficiency of the cathode material.
Disclosure of Invention
The utility model aims to provide a wet coating system of a positive electrode material, which solves the problem that the production efficiency is reduced due to the fact that the wet coating and solid-liquid separation of the positive electrode material are separate procedures in the prior art, and improves the production efficiency.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an anode material wet coating system, includes cladding cauldron and solvent collection cauldron, cladding cauldron passes through the condenser pipe with the solvent collection cauldron and is connected, set up heating element on the cladding cauldron, the cauldron of cladding cauldron is provided with annular jet-propelled pipe, be provided with a plurality of fumaroles on the jet-propelled pipe, the jet-propelled pipe is connected with the inert air supply of peripheral hardware.
In the above-mentioned positive material wet coating system, the top of cladding cauldron is provided with feed inlet and agitator motor, agitator motor's power take off end is for stretching into the (mixing) shaft in the cladding cauldron, be provided with a plurality of stirring rake on the (mixing) shaft, the end of stirring rake is provided with the scraper blade.
In the above-mentioned positive electrode material wet coating system, the condenser pipe includes first branch pipe, second branch pipe and third branch pipe, first branch pipe is vertical to be set up on the cladding cauldron, first branch pipe one end is connected with the cladding cauldron, and the other end and the second branch pipe of first branch pipe are connected, the second branch pipe is the slope of preset angle and sets up, the high side and the first branch pipe of second branch pipe are connected, the low side and the third branch pipe of second branch pipe are connected, the vertical setting of third branch pipe is on the solvent collection cauldron.
In the above-mentioned cathode material wet coating system, the second branch pipe is provided with a first condenser, and the third branch pipe is provided with a second condenser.
In the above-mentioned cathode material wet coating system, a vacuum tube is arranged at the top of the solvent collecting kettle, and the vacuum tube is connected with an external vacuum pump.
In the above-mentioned positive electrode material wet coating system, the bottom of solvent collecting kettle is provided with the liquid outlet, the liquid outlet is connected with the solvent through the pipeline and disposes the groove, the solvent disposes the groove and is connected with the solvent jar of a plurality of different solvents of peripheral hardware through the pipeline.
In the above-mentioned cathode material wet coating system, a return pipe is arranged at the bottom of the solvent configuration tank, and the other end of the return pipe is connected with the top of the coating kettle.
In the above-mentioned cathode material wet coating system, a discharge port is arranged at the bottom of the coating kettle.
In the above-mentioned cathode material wet coating system, the heating unit includes a jacket disposed on the coating kettle and an electric heating wire disposed in the jacket.
Compared with the prior art, the utility model has the beneficial effects that: in the anode material wet coating system, liquid is vaporized by heating and enters a solvent collecting kettle for recovery, inert gas is sprayed out by an annular air nozzle to rapidly take away the heated liquid, so that the solid-liquid separation efficiency is accelerated, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a connection according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of the coating tank and the solvent collection tank of fig. 1.
In the figure: 1. coating cauldron, 2, solvent collection cauldron, 3, jet tube, 4, vacuum tube, 5, agitator motor, 6, scraper blade, 7, first branch pipe, 8, second branch pipe, 9, third branch pipe, 10, first condenser, 11, second condenser, 12, solvent configuration groove, 13, back flow.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a positive pole material wet process cladding system, includes cladding cauldron 1 and solvent collection cauldron 2, cladding cauldron 1 passes through the condenser pipe with solvent collection cauldron 2 and is connected, set up heating element on the cladding cauldron 1, the cauldron bottom of cladding cauldron 1 is provided with annular jet-propelled pipe 3, be provided with a plurality of fumaroles on the jet-propelled pipe 3, jet-propelled pipe 3 is connected with the inert air supply of peripheral hardware.
In practical application, after the cathode material and the solvent in the coating kettle 1 are coated by a wet method, the coating kettle 1 is continuously heated by a heating unit to convert the liquid in the coating kettle 1 into gas, the solvent enters the solvent collecting kettle 2 through a condensing tube after being in a gas state, and the gaseous solvent is returned to a liquid state in the process and flows to the solvent collecting kettle 2 for recycling of the solvent; in order to accelerate the recovery of the solvent and improve the efficiency of solid-liquid separation, inert gas is input into the gas spraying pipe 3 in the solid-liquid separation process, so that part of the solvent is attached to the inert gas in the process of rising into the condensing pipe, the solid-liquid separation speed is accelerated, and the solid-liquid separation efficiency is improved.
In order to balance the increase in air pressure brought by the inert gas to the coating kettle 1 and the solvent collecting kettle 2, in this embodiment, a vacuum tube 4 is disposed at the top of the solvent collecting kettle 2, and the vacuum tube 4 is connected to an external vacuum pump.
By performing a certain degree of vacuum pumping in the solvent collection kettle 2, a certain degree of vacuum is formed in the solvent collection kettle 2, which effectively increases the speed of the vaporized solvent passing through the present condenser pipe and effectively reduces the increase of the air pressure brought by the inert gas to the coating kettle 1 and the solvent collection kettle 2.
In this embodiment, the top of cladding cauldron 1 is provided with feed inlet and agitator motor 5, agitator motor 5's power take off end is for stretching into the (mixing) shaft in the cladding cauldron 1, be provided with a plurality of stirring rake on the (mixing) shaft, the end of stirring rake is provided with scraper blade 6.
In practical application, since part of solids remain on the inner wall of the coating kettle 1 in a powder state after solid-liquid separation, the solids can be effectively scraped off from the inner wall of the coating kettle 1 by arranging the scraping plate 6 on the stirring paddle, so that the cathode material powder after wet coating is completely recovered.
In order to improve the condensing effect of the solvent, in this embodiment, the condensing tube includes a first branch pipe 7, a second branch pipe 8 and a third branch pipe 9, the first branch pipe 7 is vertically disposed on the coating kettle 1, one end of the first branch pipe 7 is connected with the coating kettle 1, the other end of the first branch pipe 7 is connected with the second branch pipe 8, the second branch pipe 8 is obliquely disposed at a preset angle, the high side of the second branch pipe 8 is connected with the first branch pipe 7, the low side of the second branch pipe 8 is connected with the third branch pipe 9, and the third branch pipe 9 is vertically disposed on the solvent collecting kettle 2.
Further, a first condenser 10 is provided on the second branch pipe 8, and a second condenser 11 is provided on the third branch pipe 9.
In practical application, the gaseous solvent enters the second branch pipe 8 which is obliquely arranged from the first branch pipe 7, and is converted into liquid to flow into the solvent collecting kettle 2 through the third branch pipe 9 under the action of the first condenser 10, and the second condenser 11 on the third branch pipe 9 prevents the condensation speed of the first condenser 10 from being lower than the passing speed of the gaseous solvent, so that the condensation effect is improved.
It should be noted that, the second branch pipe 8 and the first branch pipe 7 are disposed at a preset angle, the preset angle formed by the second branch pipe 8 and the first branch pipe 7 is 45-60 °, and in this embodiment, the preset angle formed by the second branch pipe 8 and the first branch pipe 7 is 60 °.
In this embodiment, a liquid outlet is disposed at the bottom of the solvent collecting kettle 2, and the liquid outlet is connected with a solvent configuration tank 12 through a pipeline, and the solvent configuration tank 12 is connected with a plurality of solvent tanks of different solvents.
In practical application, the solvent collected by the solvent collecting kettle 2 can be used for wet coating again, but because the loss of various solvent raw materials is different in the wet coating process, the solvent raw materials are added again according to the loss to prepare the solvent combination required by the wet coating, so that the solvent collected by the solvent collecting kettle 2 can enter the solvent configuration tank 12, an operator can detect and calculate the amount of various solvent raw materials required to be supplemented for the liquid in the solvent configuration tank 12, and then the solvent raw materials are supplemented through pipelines connected with a plurality of solvent tanks of different solvents outside to prepare a new solvent combination, so that the recycling rate of the solvent used for the wet coating is effectively improved.
In this embodiment, a return pipe 13 is disposed at the bottom of the solvent distribution tank 12, and the other end of the return pipe 13 is connected to the top of the coating kettle 1.
In practice, the reconfigured solvent combination may be returned to the coating tank 1 through the return pipe 13 to be mixed with a new batch of solid positive electrode material for the wet coating process again.
In this embodiment, a discharge port is provided at the bottom of the coating kettle 1.
The heating unit according to the present utility model may be a heating technology commonly used in the art, such as conduction oil heating, electric heating, etc.
In this embodiment, the heating unit includes a jacket provided on the coating kettle 1 and heating wires provided in the jacket.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a positive pole material wet process cladding system, includes cladding cauldron and solvent collection cauldron, its characterized in that, cladding cauldron passes through the condenser pipe with the solvent collection cauldron and is connected, set up heating element on the cladding cauldron, the cauldron bottom of cladding cauldron is provided with annular jet-propelled pipe, be provided with a plurality of fumaroles on the jet-propelled pipe, the jet-propelled pipe is connected with the inert air supply of peripheral hardware.
2. The cathode material wet coating system according to claim 1, wherein a feed inlet and a stirring motor are arranged at the top of the coating kettle, a power output end of the stirring motor is a stirring shaft extending into the coating kettle, a plurality of stirring paddles are arranged on the stirring shaft, and scraping plates are arranged at the tail ends of the stirring paddles.
3. The positive electrode material wet coating system according to claim 1, wherein the condensing tube comprises a first branch tube, a second branch tube and a third branch tube, the first branch tube is vertically arranged on the coating kettle, one end of the first branch tube is connected with the coating kettle, the other end of the first branch tube is connected with the second branch tube, the second branch tube is obliquely arranged at a preset angle, the high side of the second branch tube is connected with the first branch tube, the low side of the second branch tube is connected with the third branch tube, and the third branch tube is vertically arranged on the solvent collecting kettle.
4. The cathode material wet coating system of claim 3, wherein the second branch pipe is provided with a first condenser, and the third branch pipe is provided with a second condenser.
5. The cathode material wet coating system according to claim 1, wherein a vacuum tube is arranged at the top of the solvent collection kettle, and the vacuum tube is connected with a vacuum pump arranged outside.
6. The cathode material wet coating system according to any one of claims 1 to 5, wherein a liquid outlet is arranged at the bottom of the solvent collecting kettle, the liquid outlet is connected with a solvent configuration groove through a pipeline, and the solvent configuration groove is connected with a plurality of solvent tanks of different solvents arranged outside through pipelines.
7. The cathode material wet coating system according to claim 6, wherein a return pipe is arranged at the bottom of the solvent configuration tank, and the other end of the return pipe is connected with the top of the coating kettle.
8. The cathode material wet coating system according to claim 1, wherein a discharge port is provided at the bottom of the coating kettle.
9. The cathode material wet coating system according to claim 1, wherein the heating unit comprises a jacket provided on the coating kettle and a heating wire provided in the jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320806916.0U CN220026807U (en) | 2023-04-12 | 2023-04-12 | Wet coating system for anode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320806916.0U CN220026807U (en) | 2023-04-12 | 2023-04-12 | Wet coating system for anode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220026807U true CN220026807U (en) | 2023-11-17 |
Family
ID=88724938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320806916.0U Active CN220026807U (en) | 2023-04-12 | 2023-04-12 | Wet coating system for anode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220026807U (en) |
-
2023
- 2023-04-12 CN CN202320806916.0U patent/CN220026807U/en active Active
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| GR01 | Patent grant |