CN206322812U - A kind of electrolyte continuous purification knot screen - Google Patents
A kind of electrolyte continuous purification knot screen Download PDFInfo
- Publication number
- CN206322812U CN206322812U CN201621370008.8U CN201621370008U CN206322812U CN 206322812 U CN206322812 U CN 206322812U CN 201621370008 U CN201621370008 U CN 201621370008U CN 206322812 U CN206322812 U CN 206322812U
- Authority
- CN
- China
- Prior art keywords
- liquid
- electrolyte
- settling tank
- collecting barrel
- fluid injection
- 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.)
- Expired - Fee Related
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 48
- 238000000746 purification Methods 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 abstract description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 4
- 229910003002 lithium salt Inorganic materials 0.000 description 4
- 159000000002 lithium salts Chemical class 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000005486 organic electrolyte Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005349 anion exchange Methods 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- -1 methoxyl group Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000243 solution Substances 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
- Secondary Cells (AREA)
Abstract
The utility model belongs to technical field of electrolyte, more particularly to a kind of electrolyte continuous purification knot screen, including fluid injection groove, adsorbing sphere, decontaminating column, settling tank, liquid-collecting barrel and bubble removing mechanism, the lower end of the fluid injection groove is provided with drain pipe, the drain pipe successively with the adsorbing sphere, the decontaminating column and settling tank connection, the side of the fluid injection groove is provided with liquid back pipe, the liquid back pipe is connected by circulating pump with the side of the settling tank upper end, the liquid-collecting barrel is connected with the opposite side of the settling tank upper end, the bubble removing mechanism is connected with the liquid-collecting barrel.The utility model is not only simple in structure, and realizes the high-efficient purification removal of impurities to electrolyte.
Description
Technical field
The utility model belongs to technical field of electrolyte, more particularly to a kind of electrolyte continuous purification knot screen.
Background technology
Organic electrolyte is the important component of lithium ion battery, and it transmits electricity between carry both positive and negative polarity in the battery
The effect of lotus, there is important influence to main performances such as the operating temperature of battery, specific energy, cycle efficieny, securities.And lithium
Inevitably contain a small amount of impurity, such as water, hydrogen fluoride, alcohol and other metal impurities ions in ion battery electrolyte.Impurity
Content material impact can be produced to performance of lithium ion battery.Wherein, electrolyte reclaimed water can cause LiPF6Be decomposed to form
LiF, hydrogen fluoride also can play catalytic action to the hydrolysis of lithium hexafluoro phosphate, at the same the hydrogen fluoride in electrolyte can with electrode surface
SEI film reactions generation LiF.LiF leads lithium ability, causes SEI film properties to be deteriorated, so as to influence battery electrical property.Electrolyte
Influence of the methanol contaminant content to graphite electrode performance, when research finds methanol content more than 0.5%, in first charge-discharge process
In, it can be decomposed in 2.0V or so, formed methoxyl group lithium and be deposited on graphite cathode surface, influence the performance of battery.High concentration
The content of metal impurities ion not only result in lithium ion battery reversible specific capacity decline, and metal impurities ion precipitation also
Graphite electrode surface may be caused can not to form effective passivation layer, whole battery is destroyed.
Utility model content
The purpose of this utility model is：In view of the shortcomings of the prior art, a kind of electrolyte continuous purification removal of impurities is provided
Device, it is simple in construction, high-efficient purification removal of impurities can be carried out to electrolyte.
To achieve these goals, the utility model uses following technical scheme：
A kind of electrolyte continuous purification knot screen, including fluid injection groove, adsorbing sphere, decontaminating column, settling tank, liquid-collecting barrel and remove
Bubble mechanism, the lower end of the fluid injection groove is provided with drain pipe, the drain pipe successively with the adsorbing sphere, the decontaminating column and
The settling tank connection, the side of the fluid injection groove is provided with liquid back pipe, and the liquid back pipe passes through circulating pump and the settling tank
The side connection of upper end, the liquid-collecting barrel is connected with the opposite side of the settling tank upper end, the bubble removing mechanism and the collection
Liquid bucket connection.
First, the electrolyte of removal of impurities to be clean is injected by fluid injection groove, sequentially passes through adsorbing sphere, decontaminating column and settling tank by electricity
The impurity absorption solved in liquid is removed；Then, in the presence of circulating pump, flow back to fluid injection groove by the electrolyte of primary purification and enter again
Row primary purification, so circulation are repeatedly；Finally, electrolyte is entered in liquid-collecting barrel, is removed by air bubble eliminating device in electrolyte
Bubble.
Improved as one kind of electrolyte continuous purification knot screen described in the utility model, bubble removing mechanism bag
Inert gas bottle is included, the inert gas bottle is connected by wireway with the liquid-collecting barrel.
Improved as one kind of electrolyte continuous purification knot screen described in the utility model, the bubble removing mechanism is also
Including sealing bucket, the sealing bucket is provided with vent valve and discharging tube, and the discharging tube is connected with the liquid-collecting barrel.
First, inert gas is imported into liquid-collecting barrel to drive the bubble in electrolyte away；Then, putting on sealing bucket is opened
Air valve, now, has gone the electrolyte of bubble removing to be flowed into via discharging tube in sealing bucket in liquid-collecting barrel；Finally, sealing bucket is closed
On vent valve.
As electrolyte continuous purification knot screen described in the utility model one kind improve, the settling tank with it is described
Tapping valve is provided between liquid-collecting barrel.The setting of tapping valve is mainly used for the logical of electrolyte between control settlement pond and liquid-collecting barrel
It is disconnected.
Improve, set in the decontaminating column as one kind of electrolyte continuous purification knot screen described in the utility model
There is screen cloth, the decontaminating column is divided into multiple purifying areas by the screen cloth.
The beneficial effects of the utility model are：The utility model provides a kind of electrolyte continuous purification knot screen, bag
Fluid injection groove, adsorbing sphere, decontaminating column, settling tank, liquid-collecting barrel and bubble removing mechanism are included, the lower end of the fluid injection groove is provided with out liquid
Pipe, the drain pipe is connected with the adsorbing sphere, the decontaminating column and the settling tank successively, and the side of the fluid injection groove is set
There is liquid back pipe, the liquid back pipe is connected by circulating pump with the side of the settling tank upper end, the liquid-collecting barrel and the sedimentation
The opposite side connection of pond upper end, the bubble removing mechanism is connected with the liquid-collecting barrel.The utility model is not only simple in structure, and
Realize the high-efficient purification removal of impurities to electrolyte.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1- fluid injection grooves, 2- adsorbing spheres, 3- decontaminating columns, 4- settling tanks, 5- liquid-collecting barrels, 6- bubble removings mechanism, 7- circulations
Pump, 8- tapping valves, 11- drain pipes, 12- liquid back pipes, 31- screen clothes, 32- purifying areas, 61- inert gases bottle, 62- sealing buckets, 63-
Wireway, 621- vent valves, 622- discharging tubes.
Embodiment
With reference to embodiment and Figure of description, the utility model is described in further detail, but this
The embodiment of utility model is not limited to this.
As shown in figure 1, a kind of electrolyte continuous purification knot screen, including fluid injection groove 1, adsorbing sphere 2, decontaminating column 3, sedimentation
Pond 4, liquid-collecting barrel 5 and bubble removing mechanism 6, the lower end of fluid injection groove 1 are provided with drain pipe 11, drain pipe 11 successively with adsorbing sphere 2, net
Change post 3 and settling tank 4 is connected, the side of fluid injection groove 1 is provided with liquid back pipe 12, and liquid back pipe 12 passes through on circulating pump 7 and settling tank 4
The side connection at end, liquid-collecting barrel 5 is connected with the opposite side of the upper end of settling tank 4, and bubble removing mechanism 6 is connected with liquid-collecting barrel 5.Bubble removing
Mechanism 6 includes inert gas 61 inert gases of bottle bottle 61 and is connected by wireway 63 with liquid-collecting barrel 5.Bubble removing mechanism 6 also includes
Bucket 62 is sealed, sealing bucket 62 is provided with vent valve 621 and discharging tube 622, and discharging tube 622 is connected with liquid-collecting barrel 5.Settling tank 4 with
Tapping valve 8 is provided between liquid-collecting barrel 5.Screen cloth 31 is provided with decontaminating column 3, decontaminating column 3 is divided into multiple purifying areas by screen cloth 31
32。
It is preferred that, lithiated molecular sieve is filled with adsorbing sphere 2.Electrolyte can make electricity after the lithiated molecular sieve removal of impurity
The water introduced in solution liquid process for preparation and electrolyte lithium salt is further removed, and hydrogen fluoride can also obtain preliminary removing,
Simultaneously because molecular sieve has ion exchanging function, content higher other metal ions and lithiated molecular sieve in electrolyte can be made
In lithium exchange, so as to reduce the content of the metal impurities ion of other in organic electrolyte.
It is preferred that, multiple purifying areas 32 are separately filled with different weak basic anion exchanges.Electrolyte is by electricity
Solve matter lithium salts and organic solvent composition.In the storage and transportation of electrolyte, electrolyte lithium salt has micro generation unavoidably
Hydrolysis, produces some acid impurities, these acid impurities enter in the process for preparation of organic electrolyte with electrolyte lithium salt
Enter into electrolyte.Different weak basic anion exchanges is mainly used for removing the acid contained in electrolyte
Matter.
Operating process of the present utility model is：
1）The electrolyte of removal of impurities to be clean is injected by fluid injection groove 1, and sequentially passing through adsorbing sphere 2, decontaminating column 3 and settling tank 4 will
Impurity absorption in electrolyte is removed；Then, in the presence of circulating pump 7, fluid injection groove 1 is flowed back to by the electrolyte of primary purification
Primary purification is carried out again, is so circulated repeatedly；
2）The tapping valve 8 between settling tank 4 and liquid-collecting barrel 5 is opened, electrolyte is entered in liquid-collecting barrel 5, discharge opeing is finished
Tapping valve 8 is closed afterwards；
3）Inert gas is imported into liquid-collecting barrel 5 to drive the bubble in electrolyte away, is then turned on sealing putting on bucket 62
Air valve 621, makes to go the electrolyte of bubble removing to be flowed into via discharging tube 622 in sealing bucket 62 in liquid-collecting barrel 5, finally closes close
The vent valve 621 sealed on bucket 62.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and changed.Therefore, the utility model is not limited to above-mentioned embodiment, every this area skill
It is new that art personnel any conspicuously improved, replacement made on the basis of the utility model or modification belong to this practicality
The protection domain of type.Although in addition, having used some specific terms in this specification, these terms are intended merely to convenient say
It is bright, any limitation is not constituted to the utility model.
Claims (5)
1. a kind of electrolyte continuous purification knot screen, it is characterised in that：Including fluid injection groove, adsorbing sphere, decontaminating column, settling tank,
Liquid-collecting barrel and bubble removing mechanism, the lower end of the fluid injection groove are provided with drain pipe, the drain pipe successively with the adsorbing sphere, institute
State decontaminating column and settling tank connection, the side of the fluid injection groove is provided with liquid back pipe, the liquid back pipe by circulating pump with
The side connection of the settling tank upper end, the liquid-collecting barrel is connected with the opposite side of the settling tank upper end, the bubble removing machine
Structure is connected with the liquid-collecting barrel.
2. electrolyte continuous purification knot screen according to claim 1, it is characterised in that：The bubble removing mechanism includes
Inert gas bottle, the inert gas bottle is connected by wireway with the liquid-collecting barrel.
3. electrolyte continuous purification knot screen according to claim 2, it is characterised in that：The bubble removing mechanism is also wrapped
Sealing bucket is included, the sealing bucket is provided with vent valve and discharging tube, and the discharging tube is connected with the liquid-collecting barrel.
4. electrolyte continuous purification knot screen according to claim 1, it is characterised in that：The settling tank and the collection
Tapping valve is provided between liquid bucket.
5. electrolyte continuous purification knot screen according to claim 1, it is characterised in that：It is provided with the decontaminating column
The decontaminating column is divided into multiple purifying areas by screen cloth, the screen cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370008.8U CN206322812U (en) | 2016-12-13 | 2016-12-13 | A kind of electrolyte continuous purification knot screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370008.8U CN206322812U (en) | 2016-12-13 | 2016-12-13 | A kind of electrolyte continuous purification knot screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206322812U true CN206322812U (en) | 2017-07-11 |
Family
ID=59267449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370008.8U Expired - Fee Related CN206322812U (en) | 2016-12-13 | 2016-12-13 | A kind of electrolyte continuous purification knot screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206322812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473724A (en) * | 2018-10-12 | 2019-03-15 | 薛利 | A kind of lithium-ion battery electrolytes purifying plant and method of purification |
| CN110311180A (en) * | 2019-08-13 | 2019-10-08 | 中南大学 | Lithium-ion battery electrolytes circulation and purification closed-circuit system |
-
2016
- 2016-12-13 CN CN201621370008.8U patent/CN206322812U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473724A (en) * | 2018-10-12 | 2019-03-15 | 薛利 | A kind of lithium-ion battery electrolytes purifying plant and method of purification |
| CN110311180A (en) * | 2019-08-13 | 2019-10-08 | 中南大学 | Lithium-ion battery electrolytes circulation and purification closed-circuit system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |