CN108550885A - A kind of electrode frame used for all-vanadium redox flow battery - Google Patents
A kind of electrode frame used for all-vanadium redox flow battery Download PDFInfo
- Publication number
- CN108550885A CN108550885A CN201810671714.3A CN201810671714A CN108550885A CN 108550885 A CN108550885 A CN 108550885A CN 201810671714 A CN201810671714 A CN 201810671714A CN 108550885 A CN108550885 A CN 108550885A
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- Prior art keywords
- positive
- electrode frame
- anode
- runner
- liquid outlet
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Links
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 12
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims 1
- 229920002521 macromolecule Polymers 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000036647 reaction Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Present invention mainly discloses a kind of electrode frame used for all-vanadium redox flow battery, technical solutions：Electrode cavity is set among electrode frame main body, electrode frame main body quadrangle is respectively equipped with positive inlet, positive liquid outlet, cathode inlet and cathode liquid outlet, the anode inlet is connected with positive feed liquor sprue in turn, the first runner of positive feed liquor and positive feed liquor interlayer runner, positive liquid outlet is connected with anode in turn and goes out liquid sprue, anode goes out the first runner of liquid and anode goes out liquid interlayer runner, the electrode frame main body reverse side is equipped with amberplex, the anode inlet, positive liquid outlet, electrode cavity and amberplex edge are equipped with seal groove, sealing strip is equipped at the seal groove, the amberplex surrounding is fixed by sealing strip.The distributing homogeneity of electrolyte can be improved, cell reaction efficiency is improved, partition type Seal Design reduces leakage current, pile thickness, reduces assembling procedure, reduces assembling difficulty, reduces pile cost.
Description
Technical field
The present invention relates to battery technology field, especially a kind of electrode frame used for all-vanadium redox flow battery.
Background technology
All-vanadium flow battery normal temperature and pressure is run, and securely and reliably, even if positive and negative anodes electrolyte occurs mutually to mix, will not be occurred
Explosion and burning；Have extended cycle life, can depth charge and discharge, charge-discharge characteristic is good, fast response time, and energy efficiency is high；Vanadium from
The electrochemical reversibility of son is high, and activation polarization is small, is suitble to high current fast charging and discharging；Power and capacity are respectively by battery core and electricity
The quantity for solving liquid determines, thus power and capacity can independent design, flexible design；It is environmental-friendly, electrolyte can be recycled and
Regeneration.The components such as electrode, bipolar plates, amberplex are mainly assembled into pile by all-vanadium flow battery by electrode frame.
Electrode frame is the carrier of electrode material, bipolar plate material, also provides runner for electrolyte, to the load as electrochemical reaction
Body, therefore the structure design of electrode frame to Performance data and has run vital effect.Outstanding electrode frame structure design
Be not only able to reduce pile volume, moreover it is possible to improve electrolyte electrode distributing homogeneity, to improve cell reaction efficiency,
The waste for reducing raw material, reduces the cost of pile, is conducive to industrialization.
All-vanadium flow battery volume is larger at present, and the distribution of electrolyte is easy uneven, influences battery system performance；Some
The amberplex and bipolar plate material that electrode frame design needs are on the high side, increase production cost；And it is needed when processing assembling
Punch operation is carried out to amberplex and bipolar plates and increases battery production operational sequence, is unfavorable for the industry of battery system
Change.
Invention content
In view of the deficienciess of the prior art, the present invention provides a kind of electrode frame used for all-vanadium redox flow battery, and it is simple in structure, it can
The distributing homogeneity of electrolyte is improved, cell reaction efficiency and energy efficiency are improved；The design sealed using partition type can be reduced
Leakage current, pile thickness and raw material usage quantity simplify production process, reduce production cost.
In order to achieve the above object, the present invention is achieved through the following technical solutions：A kind of electrode used for all-vanadium redox flow battery
Frame, including electrode frame main body, the promising electrode cavity for placing electrode of electrode frame main body centre setting, electrode frame main body quadrangle point
Not She You positive inlet, positive liquid outlet, cathode inlet and cathode liquid outlet, the anode inlet and positive liquid outlet
In diagonal relationship, cathode inlet and cathode liquid outlet are in diagonal relationship, and the anode inlet is connected in turn positioned at electrode
The positive positive feed liquor sprue of frame main body, positive the first runner of feed liquor and positive feed liquor interlayer runner, positive liquid outlet
It is connected in turn positioned at the positive anode of electrode frame main body goes out liquid sprue, anode goes out the first runner of liquid and anode goes out liquid folder
Laminar flow road, the electrode frame main body reverse side are equipped with amberplex, the anode inlet, positive liquid outlet, electrode cavity and
Amberplex edge is equipped with seal groove, and sealing strip is equipped at the seal groove, and the amberplex surrounding is logical
Sealing strip is crossed to fix.
The present invention is further：The range of the anode inlet and the sealing strip of positive liquid outlet edge is no more than electricity
The center line of pole frame main body.
The present invention is further：Four sides of the amberplex exceed sealing strip, but do not cover positive inlet, anode
Liquid outlet, cathode inlet and cathode liquid outlet.There are certain spacing, ion due to sealing strip regular shape and with liquid in-out mouth
Exchange membrane need not be punched, to reduce waste of material, reduce that assembling procedure, to reduce assembling difficult, by sealing strip with
Seal groove fixes amberplex.
The present invention is further：It is identical that the anode feed liquor interlayer runner and anode go out liquid interlayer flow passage structure, and is equipped with
Second runner, the second runner groove depth is more than positive the first runner of feed liquor or anode goes out the slot of the first runner of liquid
Depth.Mutual groove depth has certain drop.
The present invention is further：The material of the electrode frame main body is using resistance toization such as copolymerization PP, HDPE, LLDPE, PVC, PVDF
Learn corrosive nature and the preferable high molecular material of moulding processability.
The present invention is further：Electrode frame body thickness is 2-15mm.
The present invention is further：The first runner of the anode feed liquor, anode go out the first runner of liquid and divide by uniform intervals
There are small flow channels, improves the distributing homogeneity of electrolyte.
The present invention has the beneficial effect that：
The electrode frame body contours are rectangular thin plate, and electrode frame main body quadrangle is respectively equipped with positive inlet, anode
Liquid outlet, cathode inlet and cathode liquid outlet, no matter positive inlet or liquid outlet is respectively connected with positive entry/exit liquid master
Runner, positive entry/exit liquid runner and positive entry/exit liquid interlayer runner, electrolyte after runner by that can be evenly distributed on
On electrode.
The anode inlet, positive liquid outlet, electrode cavity and amberplex edge are equipped with seal groove,
At the seal groove be equipped with sealing strip, electrode frame main body with sealing strip to being sealed everywhere, and using partition type sealing side
Formula, electrolyte on the runner before flowing into electrode will not contact ions exchange membrane, to greatly reduce on amberplex
Leakage current.
There are certain spacing, amberplex that need not be punched due to sealing strip regular shape and with liquid in-out mouth,
To reduce waste of material, reduce assembling procedure, reduction assembling difficulty, it is connect amberplex with seal groove by sealing strip
It is fixed.
The present invention has simple in structure, improves the distributing homogeneity of electrolyte, improves cell reaction efficiency and energy efficiency,
Leakage current and pile thickness are reduced using the design of partition type sealing, reduce assembling difficulty, reduction pile cost.
Description of the drawings
Fig. 1 is the positive structure schematic of electrode frame main body of the present invention；
Fig. 2 is partial schematic diagram in the present invention；
Fig. 3 is the reverse structure schematic of electrode frame main body of the present invention；
Fig. 4 is schematic cross-section of second runner in electrode frame main body in the present invention；
Fig. 5 is the second runner structural schematic diagram in the present invention.
Reference numeral：1, electrode cavity；2, amberplex；3, sealing strip；5, the second runner；11, positive inlet；
12, positive liquid outlet；13, cathode inlet；14, cathode liquid outlet；21, positive feed liquor sprue；22, positive feed liquor first divides
Runner；23, positive feed liquor interlayer runner；24, anode goes out liquid sprue, 25, anode go out the first runner of liquid, 26, anode go out liquid
Interlayer runner.
Specific implementation mode
In conjunction with attached drawing, present pre-ferred embodiments are described in further details.
A kind of electrode frame used for all-vanadium redox flow battery picture 1-4, including electrode frame main body, shape are rectangular thin plate, electricity
Pole frame body thickness is 7mm, and the promising electrode cavity 1 for placing electrode, electrode frame main body quadrangle are arranged among electrode frame main body
It is respectively equipped with positive inlet 11, positive liquid outlet 12, cathode inlet 13 and cathode liquid outlet 14, the anode inlet 11
It is in diagonal relationship with positive liquid outlet 12, cathode inlet 13 and cathode liquid outlet 14 are in diagonal relationship, the anode inlet
11 are connected in turn positioned at the positive positive feed liquor sprue 21 of electrode frame main body, the first runner of positive feed liquor 22 and anode
Feed liquor interlayer runner 23, positive liquid outlet 12 is connected in turn goes out liquid sprue 24, just positioned at the positive anode of electrode frame main body
Pole goes out the first runner of liquid 25 and anode goes out liquid interlayer runner 26.Anode feed liquor first runner 22, anode go out liquid the
One runner 25 has small flow channels by uniform intervals segmentation, improves the distributing homogeneity of electrolyte, improves cell reaction efficiency and energy
Amount efficiency.It is identical that the anode feed liquor interlayer runner 23 and anode go out liquid interlayer 26 structures of runner, and is equipped with the second runner
5,5 groove depth of the second runner is more than the first runner of positive feed liquor 22 or anode goes out the groove depth of the first runner of liquid 25
Degree, mutual groove depth have certain drop.
The electrode frame main body reverse side is equipped with amberplex 2, the anode inlet 11, positive liquid outlet 12, electrode
Chamber 1 and 2 edge of amberplex are equipped with seal groove, and sealing strip 3 is equipped at the seal groove, and sealing strip 3 is placed
In the seal groove held successfully in advance, 2 surrounding of the amberplex is fixed by sealing strip 3.The anode inlet 11 and just
The range of the sealing strip 3 of 12 edge of pole liquid outlet is no more than the center line of electrode frame main body.The four of the amberplex 2
Side exceeds sealing strip 3, but does not cover positive inlet 11, positive liquid outlet 12, cathode inlet 13 and cathode liquid outlet 14.
There is certain spacing due to 3 regular shape of sealing strip and with liquid in-out mouth, amberplex 2 need not be punched, to subtract
Few waste of material reduces assembling procedure, reduces assembling difficulty, is connect with seal groove by sealing strip 3 and consolidates amberplex 2
It is fixed, and sealing strip 3 flows through region to the electrolyte of 2 times coverings of amberplex and is sealed.The material of the electrode frame main body
Using resistances to chemical corrosion and the preferable high molecular materials of moulding processability such as copolymerization PP, HDPE, LLDPE, PVC, PVDF.
There are two electrode frame main bodys, is anode electrode frame main body and negative electrode frame main body, the two structure design complete one
It causes, the concrete structure in anode electrode frame main body, anode electrode frame main body and negative electrode frame main body is described in this implementation column
All entry/exit liquid mouth alignment, and the side of two pieces of electrode frame main bodys placement amberplexes 2 is located at the inside of assembly.It is practical
When work, electrolyte is entered by positive inlet 11, then flows to positive feed liquor sprue 21 successively, positive feed liquor first divides
Runner 22, positive feed liquor interlayer runner 23 and the second runner 5, are evenly distributed by the second runner 5 to electrode cavity 1,
And after the reaction of electrode cavity 1, and pass through that the second runner 5, anode go out liquid interlayer runner 26, anode goes out the shunting of liquid first successively
Road 25, anode go out liquid sprue 24, are finally flowed out from positive liquid outlet 12；14 electrolyte of cathode inlet 13 and cathode liquid outlet
Inflow and outflow it is identical with sequence described above.Electrolyte after runner by that can be uniformly distributed on the electrode, reduction activation polarization,
Reaction efficiency is improved, the anode inlet 11, positive liquid outlet 12, electrode cavity 1 and 2 edge of amberplex are equal
Equipped with seal groove, at the seal groove be equipped with sealing strip 3, electrode frame main body with sealing strip 3 to being sealed everywhere, and using point
Cut formula sealing mode, electrolyte on the runner before flowing into electrode will not contact ions exchange membrane 2, to greatly reduce from
Leakage current on proton exchange 2.
There are certain spacing, amberplex 2 that need not be beaten due to 3 regular shape of sealing strip and with liquid in-out mouth
Hole is connect with seal groove by sealing strip 3 to reduce waste of material, reduce assembling difficulty and fixes amberplex 2.This
Invention has simple in structure, improves the distributing homogeneity of electrolyte, cell reaction efficiency and energy efficiency is improved, using partition type
The design of sealing reduces leakage current, pile thickness；Assembling procedure is reduced, assembling difficulty is reduced, reduces pile cost.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention,
All changes for carrying out unsubstantiality to the present invention using this design, should all fall into protection scope of the present invention.
Claims (7)
1. a kind of electrode frame used for all-vanadium redox flow battery, including electrode frame main body, promising placement electrode is arranged in electrode frame main body centre
Electrode cavity（1）, it is characterised in that：Electrode frame main body quadrangle is respectively equipped with positive inlet（11）, positive liquid outlet
（12）, cathode inlet（13）With cathode liquid outlet（14）, the anode inlet（11）With positive liquid outlet（12）In diagonal
Relationship, cathode inlet（13）With cathode liquid outlet（14）In diagonal relationship, the anode inlet（11）It is connected with position in turn
In the positive positive feed liquor sprue of electrode frame main body（21）, positive the first runner of feed liquor（22）And positive feed liquor interlayer stream
Road（23）, positive liquid outlet（12）It is connected in turn and goes out liquid sprue positioned at the positive anode of electrode frame main body（24）, anode goes out
The first runner of liquid（25）And anode goes out liquid interlayer runner（26）, the electrode frame main body reverse side is equipped with amberplex（2）,
The anode inlet（11）, positive liquid outlet（12）, electrode cavity（1）And amberplex（2）Edge is equipped with
Seal groove is equipped with sealing strip at the seal groove（3）, the amberplex（2）Surrounding passes through sealing strip（3）It is fixed.
2. a kind of electrode frame used for all-vanadium redox flow battery according to claim 1, it is characterised in that：The anode inlet
（11）With positive liquid outlet（12）The sealing strip of edge（3）Range be no more than electrode frame main body center line.
3. a kind of electrode frame used for all-vanadium redox flow battery according to claim 1 or 2, it is characterised in that：The ion exchange
Film（2）Four sides exceed sealing strip（3）, but positive inlet is not covered（11）, positive liquid outlet（12）, cathode inlet
（13）With cathode liquid outlet（14）.
4. a kind of electrode frame used for all-vanadium redox flow battery according to claim 1 or 2, it is characterised in that：The anode feed liquor
Interlayer runner（23）Go out liquid interlayer runner with anode（26）Structure is identical, and is equipped with the second runner（5）, second shunting
Road（5）Groove depth is more than the first runner of positive feed liquor（22）Or anode goes out the first runner of liquid（25）Groove depth.
5. a kind of electrode frame used for all-vanadium redox flow battery according to claim 4, it is characterised in that：The electrode frame main body
Material is using resistances to chemical corrosion and the preferable macromolecules of moulding processability such as copolymerization PP, HDPE, LLDPE, PVC, PVDF
Material.
6. a kind of electrode frame used for all-vanadium redox flow battery according to claim 5, it is characterised in that：Electrode frame body thickness is
2-15mm。
7. a kind of electrode frame used for all-vanadium redox flow battery according to claim 1, it is characterised in that：The anode feed liquor first
Runner（22）, anode go out the first runner of liquid（25）There are small flow channels by uniform intervals segmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671714.3A CN108550885B (en) | 2018-06-26 | 2018-06-26 | Electrode frame for all-vanadium redox flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671714.3A CN108550885B (en) | 2018-06-26 | 2018-06-26 | Electrode frame for all-vanadium redox flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108550885A true CN108550885A (en) | 2018-09-18 |
| CN108550885B CN108550885B (en) | 2024-03-15 |
Family
ID=63493271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810671714.3A Active CN108550885B (en) | 2018-06-26 | 2018-06-26 | Electrode frame for all-vanadium redox flow battery |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970634A (en) * | 2018-09-29 | 2020-04-07 | 中国科学院大连化学物理研究所 | Electrode frame for all-vanadium redox flow battery and application |
| CN113823806A (en) * | 2020-06-19 | 2021-12-21 | 中国科学院大连化学物理研究所 | Integrated electrode frame structure for all-vanadium redox flow battery, preparation method and application |
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| Publication number | Publication date |
|---|---|
| CN108550885B (en) | 2024-03-15 |
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