CN219203453U - Vacuum pump filtration system for lithium ion battery liquid injection - Google Patents
Vacuum pump filtration system for lithium ion battery liquid injection Download PDFInfo
- Publication number
- CN219203453U CN219203453U CN202223054578.4U CN202223054578U CN219203453U CN 219203453 U CN219203453 U CN 219203453U CN 202223054578 U CN202223054578 U CN 202223054578U CN 219203453 U CN219203453 U CN 219203453U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- vacuum pump
- pipeline
- lithium ion
- ion battery
- 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
- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model discloses a vacuum pump filtering system for lithium ion battery liquid injection, which comprises a liquid injection machine, a stuffing box, a filtering water tank and a vacuum pump, wherein the liquid injection machine is connected with the stuffing box for adsorbing hydrofluoric acid and organic solvent volatile matters through a first vacuum pipeline, the stuffing box is connected with the filtering water tank for collecting trace residual gas through a second vacuum pipeline, and the filtering water tank is connected with the vacuum pump for vacuumizing through a third vacuum pipeline.
Description
Technical Field
The utility model relates to the field of manufacturing of lithium ion batteries, in particular to a vacuum pump filtering system for lithium ion battery liquid injection.
Background
One procedure in the preparation process of the lithium ion battery is the injection of the lithium ion battery, generally, electrolyte with a certain weight is injected into a battery shell body filled with a battery pole piece combination, and then the electrolyte is placed in a vacuumizing environment to suck out air in a pole piece gap so as to accelerate the permeation of the electrolyte, thereby reducing the time required by the injection process, wherein the electrolyte comprises the following main components: organic solvents such as ethylene carbonate, methyl ethyl carbonate, dimethyl carbonate and the like, and solutes are lithium hexafluorophosphate, because most of liquid injection machines used in the existing process have liquid injection and vacuumizing double stations, partial electrolyte volatilizes and reaches the position of a vacuum pump body along a pipeline after the liquid injection is completed and vacuumized, and because lithium hexafluorophosphate in the electrolyte is highly corrosive when meeting hydrofluoric acid, the volatilized electrolyte gas can corrode a vacuum pump, the service life of the vacuum pump is shortened, and after the lithium hexafluorophosphate is discharged from tail gas of the vacuum pump, environment is easily polluted.
Disclosure of Invention
The utility model aims to: the utility model aims to provide a vacuum pump filtering system for lithium ion battery liquid injection, which can filter partial volatilized electrolyte when the lithium ion battery is vacuumized after liquid injection, prevent equipment from being damaged and reduce the pollution of tail gas finally discharged out of a vacuum pump to the environment.
The technical scheme is as follows: the utility model relates to a vacuum pump filtering system for lithium ion battery liquid injection, which comprises a liquid injection machine, a stuffing box, a filtering water tank and a vacuum pump, wherein the liquid injection machine is connected with the stuffing box for adsorbing hydrofluoric acid and organic solvent volatile through a first vacuum pipeline, and a liquid storage bay for collecting liquid electrolyte is arranged on the first vacuum pipeline; the packing box is connected with a filtering water tank for collecting trace residual gas through a second vacuum pipeline, and the filtering water tank is connected with a vacuum pump for vacuumizing through a third vacuum pipeline.
Preferably, the liquid storage bay is arranged between the first vacuum pipelines, is lower than the first vacuum pipelines in height, is made of semitransparent PPR materials, and is provided with a sealing valve for liquid drainage at the bottom.
The setting that the liquid bay is less than the high of first vacuum pipeline can ensure that all get into the liquid bay through the liquid electrolyte of first vacuum pipeline in, and the liquid bay of translucent material can ensure that the staff regularly opens sealing valve according to the liquid quantity of depositing simultaneously, gets rid of whole system with abandonment electrolyte.
Preferably, a plurality of layers of combined fillers of the SDG adsorbent and the activated carbon are arranged in the stuffing box at intervals, and a partition plate is arranged between adjacent fillers.
The combined filler of the multi-layer SDG adsorbent and the activated carbon ensures that the stuffing box can adsorb hydrofluoric acid and organic solvent volatile matters to the greatest extent, and the arrangement of the partition plates can ensure that the SDG adsorbent and the activated carbon are not mixed with each other, so that the self efficacy is reduced.
Preferably, one end of the partition plate is a stainless steel net, the other end of the partition plate is a stainless steel plate, the length of the stainless steel plate is longer than that of the stainless steel net, and one ends of the stainless steel nets of any adjacent partition plates are not on the same side.
The baffle adopts the design of partial steel sheet part steel mesh can ensure the circulation of gas, and the one end of the stainless steel mesh of adjacent baffle is not in the same side can ensure that the gaseous when passing through the packing of circulation, can lengthen the path length of packing that passes through as far as possible, and then ensures the abundant absorption to acid hydrofluoric acid and organic solvent volatile in the gas.
Preferably, the filter water tank is internally provided with an air outlet pipeline and an air inlet pipeline, the air inlet of the air inlet pipeline is arranged below the water surface, the air outlet of the air outlet pipeline is arranged above the water surface, and the design can ensure that residual trace electrolyte in gas is further absorbed by water, so that the air cleanliness of the air entering the vacuum pump is ensured.
Preferably, the first vacuum pipeline, the second vacuum pipeline and the third vacuum pipeline are all made of PVC or PPR materials.
PVC material or PPR material is selected to be more corrosion-resistant, and the cost is low.
The beneficial effects are that: this application simple structure through depositing liquid bay, packing box and filtering water tank one step with volatilizing electrolyte absorb completely, ensures the cleanliness factor that gets into the vacuum pump air, has improved the life of vacuum pump, has reduced the pollution of vacuum pump tail gas to the environment.
Drawings
Fig. 1 is a schematic structural view of the present application.
Detailed Description
The present application is further illustrated below in conjunction with specific embodiments.
As shown in fig. 1, in the present embodiment, the apparatus comprises a liquid injector 1, a stuffing box 2, a filtering water tank 3 and a vacuum pump 4, wherein the liquid injector 1 is connected with the stuffing box 2 for adsorbing hydrofluoric acid and volatile organic solvent through a first vacuum pipeline 5, the stuffing box 2 is connected with the filtering water tank 3 for collecting trace residual gas through a second vacuum pipeline 7, and the filtering water tank 3 is connected with the vacuum pump 4 for vacuumizing through a third vacuum pipeline 8.
In this embodiment, be provided with the liquid bay 6 that is used for collecting liquid electrolyte on the first vacuum pipe 5, liquid bay 6 sets up between first vacuum pipe 5, be less than the height of first vacuum pipe 5, adopt semitransparent PPR material to constitute, the bottom of liquid bay 6 is provided with the sealing valve who is used for flowing back, such setting can ensure that the liquid electrolyte through first vacuum pipe 5 gets into liquid bay 6 entirely, simultaneously the liquid bay 6 of semitransparent material can ensure that the staff regularly opens sealing valve according to the volume of depositing, discharge the whole system with abandonment electrolyte.
In this embodiment, the stuffing box 2 is internally provided with a plurality of layers of combined stuffing of SDG adsorbent and activated carbon at intervals, which can adsorb hydrofluoric acid and organic solvent volatile to the maximum extent, and in order to prevent the reduction of the self-efficacy caused by the intermixing of the SDG adsorbent and activated carbon, a partition 21 is provided between adjacent stuffing.
In this embodiment, the stainless steel mesh 22 is disposed at one end of the separator 21, the stainless steel plate 23 is disposed at the other end, the length of the stainless steel plate 23 is greater than that of the stainless steel mesh 22, and the design of a part of the steel plates and a part of the steel mesh can ensure the circulation of the gas, and at the same time, in order to prolong the path length of the gas passing through the filler as much as possible, the acid hydrofluoric acid and the volatile organic solvent in the gas are fully absorbed, and one end of the stainless steel mesh 22 of any adjacent separator 21 is not located at the same side.
In this embodiment, the air outlet pipeline 32 and the air inlet pipeline 31 are arranged in the filtering water tank 3, the air inlet of the air inlet pipeline 31 is arranged below the water surface, the air outlet of the air outlet pipeline 32 is arranged above the water surface, and the design can ensure that the residual trace electrolyte in the air is further absorbed by water, so that the air cleanliness entering the vacuum pump 4 is ensured.
In this embodiment, the first vacuum pipe 5, the second vacuum pipe 7 and the third vacuum pipe 8 are made of PVC or PPR, which is more corrosion resistant and has low cost.
This application simple structure through depositing liquid bay 6, packing box 2 and filtering water tank 3 one step with volatilizing electrolyte absorb completely, ensures the cleanliness factor that gets into vacuum pump 4 air, has improved vacuum pump 4's life, has reduced vacuum pump 4 tail gas and has polluted the environment, is suitable for extensive popularization.
Claims (6)
1. A vacuum pump filtration system for lithium ion battery liquid injection is characterized in that: the liquid filling machine comprises a liquid filling machine (1), a stuffing box (2), a filtering water tank (3) and a vacuum pump (4), wherein the liquid filling machine (1) is connected with the stuffing box (2) for adsorbing hydrofluoric acid and organic solvent volatile substances through a first vacuum pipeline (5), and a liquid storage bay (6) for collecting liquid electrolyte is arranged on the first vacuum pipeline (5); the packing box (2) is connected with the filtering water tank (3) for collecting trace residual gas through a second vacuum pipeline (7), and the filtering water tank (3) is connected with the vacuum pump (4) for vacuumizing through a third vacuum pipeline (8).
2. The vacuum pump filtration system for lithium ion battery liquid injection according to claim 1, wherein: the liquid storage bay (6) is arranged between the first vacuum pipelines (5), is lower than the first vacuum pipelines (5) in height, is made of semitransparent PPR materials, and is provided with a sealing valve for liquid drainage at the bottom of the liquid storage bay (6).
3. The vacuum pump filtration system for lithium ion battery liquid injection according to claim 1, wherein: and a plurality of layers of combined fillers of the SDG adsorbent and the activated carbon are arranged in the stuffing box (2) at intervals, and a partition plate (21) is arranged between every two adjacent fillers.
4. A vacuum pump filtration system for lithium ion battery liquid injection as claimed in claim 3, wherein: one end of each partition plate (21) is provided with a stainless steel net (22), the other end of each partition plate is provided with a stainless steel plate (23), the length of each stainless steel plate (23) is larger than that of each stainless steel net (22), and one ends of the stainless steel nets (22) of any adjacent partition plates (21) are not on the same side.
5. The vacuum pump filtration system for lithium ion battery liquid injection according to claim 1, wherein: an air outlet pipeline (32) and an air inlet pipeline (31) are arranged in the filtering water tank (3), an air inlet of the air inlet pipeline (31) is arranged below the water surface, and an air outlet of the air outlet pipeline (32) is arranged above the water surface.
6. The vacuum pump filtration system for lithium ion battery liquid injection according to claim 1, wherein: the first vacuum pipeline (5), the second vacuum pipeline (7) and the third vacuum pipeline (8) are made of PVC or PPR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223054578.4U CN219203453U (en) | 2022-11-17 | 2022-11-17 | Vacuum pump filtration system for lithium ion battery liquid injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223054578.4U CN219203453U (en) | 2022-11-17 | 2022-11-17 | Vacuum pump filtration system for lithium ion battery liquid injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219203453U true CN219203453U (en) | 2023-06-16 |
Family
ID=86701743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223054578.4U Active CN219203453U (en) | 2022-11-17 | 2022-11-17 | Vacuum pump filtration system for lithium ion battery liquid injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219203453U (en) |
-
2022
- 2022-11-17 CN CN202223054578.4U patent/CN219203453U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204107268U (en) | Device for recovering oil and gas | |
| CN1806894A (en) | Oil gas absorptive reclaiming method and apparatus | |
| CN202224049U (en) | Acid and hydrocarbon mixed waste gas treatment equipment | |
| CN219203453U (en) | Vacuum pump filtration system for lithium ion battery liquid injection | |
| CN204502711U (en) | Embrane method combination gas recovery system for oil | |
| CN208943798U (en) | A kind of tyre vulcanization house exhaust pretreatment unit | |
| CN206660883U (en) | A kind of waste gas treatment equipment for industry environmental protection | |
| CN204522671U (en) | Multistage handing-over absorption method oil-gas recovery processing device | |
| CN201889143U (en) | Dry desorption unit for organic waste gas activated carbon absorption | |
| CN209363277U (en) | A kind of organic polluted soil reparation heap body hypothermia thermal desorption device | |
| CN111346480A (en) | Treatment device and treatment method for methanol waste gas | |
| CN208527692U (en) | A kind of restoration of the ecosystem bed of heavy-metal contaminated soil | |
| CN210945283U (en) | Negative pressure aeration deodorizing device | |
| CN211035407U (en) | Vertical multistage constructed wetland device | |
| CN212309061U (en) | Low concentration metal ion's purification device | |
| CN210473487U (en) | Vertical active carbon tower | |
| CN204364941U (en) | A kind of for transformer oil regeneration, can the adsorbent equipment of situ regeneration adsorbent | |
| CN209602074U (en) | A kind of device for recovering oil and gas | |
| CN206660866U (en) | The collection device of organic volatile | |
| CN214634997U (en) | Waste gas purification device | |
| CN110448991B (en) | Pipe gallery sewage pressure pipe deodorization and filtration method | |
| CN208229517U (en) | Purifying Device for Organic Solvent for lithium battery electrolytes | |
| CN203441640U (en) | Embedded oil-gas separator for oil tank of motorcycle | |
| CN214914722U (en) | Active carbon adsorption system with dual filtration framework | |
| CN210385243U (en) | Small-size earthwork transport vehicle with humidifying structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |