CN204464378U - A kind of all-vanadium flow battery - Google Patents
A kind of all-vanadium flow battery Download PDFInfo
- Publication number
- CN204464378U CN204464378U CN201420791577.4U CN201420791577U CN204464378U CN 204464378 U CN204464378 U CN 204464378U CN 201420791577 U CN201420791577 U CN 201420791577U CN 204464378 U CN204464378 U CN 204464378U
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- China
- Prior art keywords
- storage tank
- flow battery
- battery
- vanadium flow
- negative electrode
- Prior art date
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- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000004146 energy storage Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 4
- 229910001456 vanadium ion Inorganic materials 0.000 abstract description 4
- 239000011149 active material Substances 0.000 abstract description 3
- 238000012983 electrochemical energy storage Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000033116 oxidation-reduction process Effects 0.000 abstract description 2
- 230000010287 polarization Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000006479 redox reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
Abstract
A kind of all-vanadium flow battery, comprises cathode electrolyte storage tank, anolyte liquid storage tank, negative electrode, positive electrode, amberplex, the first pump, the second pump and load; Described cathode electrolyte storage tank, negative electrode are connected with the first series connection of pumps; Described anolyte liquid storage tank, positive electrode are connected with the second series connection of pumps; Described amberplex is arranged between positive electrode and negative electrode; Be converted mutually between the oxidation-reduction pair of all-vanadium flow battery by the different valence state of vanadium ion in fluid reservoir and realize the charge and discharge of electric energy, it is the electrochemical energy storage system be uniquely made up of same element, there is not variety classes active material between positive and negative level battery and interpenetrate the pollution of generation, can not set off an explosion; All-vanadium flow battery electrochemical polarization is less, makes battery to realize high current charge-discharge, visible, and all-vanadium flow battery is in the life-span, and efficiency, expense, secure context, meets the technical requirement of wind energy energy-storage system completely.
Description
Technical field
The utility model relates to savings battery applications field, especially a kind of all-vanadium flow battery.
Background technology
The scale of chemical cell stored energy capacitance is controlled, to place without particular/special requirement, is applicable to being applied in the energy-storage system of large-scale wind power field.The chemical energy storage system being applied to wind energy turbine set is at present main lead-acid battery, lead-acid battery is in charging process, lead ion in solution is converted into solid oxide lead deposit at electrode surface, in discharge process, solid oxide lead electrode again dissolves and enters liquid phase, charge and discharge process with battery lead plate material liquid/solid phases between conversion.In order to ensure the stability of solid oxide lead electrode crystal formation, battery charging and discharging degree needs strict control; The change of electrode structure causes chemical property deteriorated gradually, and principle determines limited charge and discharge cycles and battery life.The intermittence of wind-powered electricity generation needs battery can discharge and recharge continually, and often cause battery to be often in the little state of charging and discharging currents, this will accelerate the ager process of lead-acid battery, and lead-acid battery can only use some months at most in this case, substantially reduces and recycles the longevity.
Prior art can not meet the needs of people, and for the problems referred to above, the utility model aims to provide a kind of all-vanadium flow battery.
For realizing this technical purpose, scheme of the present utility model is: a kind of all-vanadium flow battery, comprises cathode electrolyte storage tank, anolyte liquid storage tank, negative electrode, positive electrode, amberplex, the first pump, the second pump and load; Described cathode electrolyte storage tank, negative electrode are connected with the first series connection of pumps; Described anolyte liquid storage tank, positive electrode are connected with the second series connection of pumps; Described amberplex is arranged between positive electrode and negative electrode; Described load connects positive electrode and negative electrode.
As prioritization scheme of the present utility model, this flow battery is adopted as full vanadium liquid.
Compared with prior art, the beneficial effects of the utility model are: this automobile arrangement for adjusting height, all-vanadium flow battery has that scale is large, the life-span is long, respond fast, low maintenance, at room temperature run and to change and maintenance cost is low, efficiency is high, the feature such as safe and reliable, being well suited for as extensive power energy storage, is a kind of novel environment friendly energy-storage battery had a high potential.
Scale is large
Rated power and rated energy are separate, and this system, by changing the capacity of electrolyte in fluid reservoir, can meet storage and the Efficient Conversion demand of large-scale electric energy; By the number of monocell in parallel and the area of single-cell electrodes in adjustment pile, the nominal discharge power of demand can be met.
Life-span is long
The both positive and negative polarity reaction of battery realizes all in the liquid phase, do not undergo phase transition both positive and negative polarity electrode and do not participate in electrochemical reaction, charge and discharge process only changes the valence state of vanadium ion in solution, therefore can carry out the charge and discharge cycles of unlimited arbitrary extent in theory, the long service life of battery.
The VRB built up in the world tests pile, and through 13000 cycle charge-discharges, the stability of verification system and engineering reliability, the discharge and recharge number of times of other energy-storage battery all only has several thousand times.Because electrolyte is without other metal impurities, after operation is aging, can directly recover system activity through electrolysis, replacing barrier film also can life-saving again, this means that the alternative costs of all-vanadium flow battery are far below other any one chemical cells.
Cost is low
The reserves of the main material vanadium of all-vanadium redox flow battery electrolyte are large, low price, and the preparation of battery critical material progressively will realize production domesticization, and VRB system cost can far below chemical power sources such as fuel cells.
Efficiency is high
Because both positive and negative polarity active material is separately stored in different fluid reservoirs, stop electrolyte and deposit process self discharge consumption possibility, battery system energy efficiency can reach 75% ~ 85%.
Safe and reliable
Be converted mutually between the oxidation-reduction pair of all-vanadium flow battery by the different valence state of vanadium ion in fluid reservoir and realize the charge and discharge of electric energy, it is the electrochemical energy storage system be uniquely made up of same element, there is not variety classes active material between positive and negative level battery and interpenetrate the pollution of generation, can not set off an explosion.Because battery electrolyte circulates, battery there will not be the phenomenon of thermal runaway, and it is much smaller that the influence of temperature to all-vanadium flow battery performance compares lead accumulator, and after the recovery of temperature, battery performance also recovers completely.All-vanadium flow battery electrochemical polarization is less, makes battery to realize high current charge-discharge, visible, and all-vanadium flow battery is in the life-span, and efficiency, expense, secure context, meets the technical requirement of wind energy energy-storage system completely.
Utility model content
Accompanying drawing explanation
Fig. 1 is the utility model overall structure sketch;
Wherein: 1, cathode electrolyte storage tank, 2, anolyte liquid storage tank, 3, negative electrode, 4, positive electrode, 5, amberplex, the 6, first pump, the 7, second pump, 8, load.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of all-vanadium flow battery, comprises cathode electrolyte storage tank 1, anolyte liquid storage tank 2, negative electrode 3, positive electrode 4, amberplex 5, first pump 6, second pump 7 and load 8; Described cathode electrolyte storage tank 1, negative electrode 3 and the first pump 6 are connected in series; Described anolyte liquid storage tank 2, positive electrode 4 and the second pump 7 are connected in series; Described amberplex 5 is arranged between positive electrode 4 and negative electrode 3; Described load 8 connects positive electrode 4 and negative electrode 3.
As prioritization scheme of the present utility model, this flow battery is adopted as full vanadium liquid.
The redox reaction that all-vanadium flow battery positive electrode occurs is:
The redox reaction that negative electrode occurs is:
When there is redox reaction in the vanadium ion of different valence state on electrode, a normal potential E0 can be produced, when temperature is 298K, the E0+=+1.004V that redox reaction between the V4+/V5+ of positive electrode produces, the E0-=-0.255V that redox reaction between the V2+/V3+ of negative electrode produces, therefore E0 is 1.259V.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection range that all should be included in technical solutions of the utility model.
Claims (1)
1. an all-vanadium flow battery, comprises cathode electrolyte storage tank (1), anolyte liquid storage tank (2), negative electrode (3), positive electrode (4), amberplex (5), the first pump (6), the second pump (7) and load (8); It is characterized in that: described cathode electrolyte storage tank (1), negative electrode (3) and the first pump (6) are connected in series; Described anolyte liquid storage tank (2), positive electrode (4) and the second pump (7) are connected in series; Described amberplex (5) is arranged between positive electrode (4) and negative electrode (3); Described load (8) connects positive electrode (4) and negative electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791577.4U CN204464378U (en) | 2014-12-04 | 2014-12-04 | A kind of all-vanadium flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791577.4U CN204464378U (en) | 2014-12-04 | 2014-12-04 | A kind of all-vanadium flow battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464378U true CN204464378U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420791577.4U Expired - Fee Related CN204464378U (en) | 2014-12-04 | 2014-12-04 | A kind of all-vanadium flow battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN204464378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883596A (en) * | 2020-12-21 | 2022-08-09 | 广东三水合肥工业大学研究院 | Positive electrode precipitate recovery device for managing all-vanadium redox flow battery |
-
2014
- 2014-12-04 CN CN201420791577.4U patent/CN204464378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883596A (en) * | 2020-12-21 | 2022-08-09 | 广东三水合肥工业大学研究院 | Positive electrode precipitate recovery device for managing all-vanadium redox flow battery |
| CN114883596B (en) * | 2020-12-21 | 2024-04-26 | 广东三水合肥工业大学研究院 | Positive electrode precipitate recovery device for managing all-vanadium redox flow battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20151204 |
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| EXPY | Termination of patent right or utility model |