CN204651395U - A kind of baffler for all-vanadium flow battery - Google Patents
A kind of baffler for all-vanadium flow battery Download PDFInfo
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- CN204651395U CN204651395U CN201520402748.4U CN201520402748U CN204651395U CN 204651395 U CN204651395 U CN 204651395U CN 201520402748 U CN201520402748 U CN 201520402748U CN 204651395 U CN204651395 U CN 204651395U
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- runner
- baffler
- loose structure
- fluid
- hole
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- 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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Abstract
A kind of baffler for all-vanadium flow battery, comprise the baffler with hollow cavity, the diagonal position of described baffler both sides has inlet opening and fluid hole, the runner of loose structure is provided with in the hollow cavity of baffler, hole in the runner of described runner loose structure is through hole, gap reserved between the end of the runner of described runner loose structure and baffler inwall forms the public runner of the feed liquor being positioned at feed liquor nose end respectively and is positioned at the public runner of fluid of fluid nose end, the two ends of the runner of described loose structure are respectively arranged with multiple feed liquor runner distribution openings and multiple fluid runner distribution openings, the utility model makes electrolyte being more evenly distributed at electrode surface, different distribution openings is entered and the electrolyte flow rate that flows out homogeneous, improve the current density on electrode unit area, thus carry high-octane transformation efficiency.
Description
Technical field
The utility model relates to all-vanadium flow battery field, is specifically related to a kind of baffler for all-vanadium flow battery.
Background technology
" 12 " period, the constantly dark people built along with China's intelligent grid, the exploitation of the new forms of energy such as solar energy, wind energy are by sustainable growth.The powerful support that extensive energy storage develops as new forms of energy also will be developed fast.In world wide, the cry of green energy resource and regenerative resource is also grown to even greater heights.But, all there is the unsteadiness of energy supply, need the energy-storage system of function admirable supporting with it in no matter solar energy or wind energy.Peak load shifting, the balanced load of electrical network also need scale energy storage technology.All-vanadium flow battery (VRB) has that Expansion is easy, the life-span is long, respond the features such as fast, safe and reliable, operating maintenance expense is low, has unique advantage and receive much concern in extensive energy storage.The basic structure of pile comprises collector plate, hermetically-sealed construction, electrode frame, baffler, electrode and ion-conductive membranes.Allocation of space, the electrochemical reaction of electrolyte can be affected by design baffler, and then affect the properties of pile.Because high-power pile is made up of cell, therefore electrolyte often can not uniform distribution on cell and battery lead plate, and this can cause local current densities uneven, cause side reaction or heat distribution uneven, thus battery performance is declined.Increase the distribution that electrolyte baffler can improve electrolyte, but also can increase electrolyte stream dynamic resistance simultaneously, pump consumption increases, whole system charge-discharge energy decrease in efficiency.Therefore be necessary design a kind of can uniform distribution electrolyte and also flow resistance little baffler to solve the problem.
Summary of the invention
In order to overcome above-mentioned prior art Problems existing, the purpose of this utility model is to provide a kind of baffler for all-vanadium flow battery, make electrolyte being more evenly distributed at electrode surface, the electrolyte flow rate different distribution openings being entered and flow out is homogeneous, improve the current density on electrode unit area, thus carry high-octane transformation efficiency.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of baffler for all-vanadium flow battery, comprise the baffler 1 with hollow cavity, the diagonal position of described baffler 1 both sides has inlet opening 2 and fluid hole 8, the runner 5 of loose structure is provided with in the hollow cavity of baffler 1, hole in the runner 5 of described runner loose structure is through hole, gap reserved between the end of the runner 5 of described runner loose structure and baffler 1 inwall forms the public runner of feed liquor 3 being positioned at inlet opening 2 end and the public runner 6 of fluid being positioned at fluid hole 8 end respectively, the two ends of the runner 5 of described loose structure are respectively arranged with multiple feed liquor runner distribution openings 4 and multiple fluid runner distribution openings 7.
The porosity of the runner 5 of described loose structure is greater than 50%.
The material of described baffler 1 is polyethylene, polyvinyl chloride or polypropylene
Compared to the prior art comparatively, the utility model possesses following advantage:
1, electrolyte stream enters the public runner of feed liquor through baffler by inlet opening, then be distributed into a plurality of fluids uniformly through feed liquor runner distribution openings and enter different runners, the loose structure arranged in runner can extend the flow distance of electrolyte in baffler to greatest extent, improve electrolyte at the even distribution of electrode surface, effectively prevent the appearance of flow dead.This kind of design makes the electric current of flow battery when discharging in unit are larger, and the discharge power of whole battery is larger.Make battery when idle state, increase the effective resistance of self-discharge of battery, thus improve the combination property of all-vanadium flow battery.Ensure that the stability that all-vanadium flow battery runs and efficiency.
2, the utility model is reasonable in design, novel structure, is convenient to processing.It is assigned with the flow of electrolyte uniformly by runner distribution openings, and define the flow direction of electrolyte in baffler, loose structure design in runner had both extended the flow distance of electrolyte at electrode surface, make again the on-way resistance of flowing very little, the reaction that pile inside participates in electrode can be entered fully fast, thus improve the efficiency of battery.And the design of loose structure also makes the flow distance of electrolyte in each cell similar with mode, ensure that the consistency of each monomer battery voltage, improve the efficiency of Knockdown block, extend the life of a cell.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the utility model baffler.
Embodiment
Below in conjunction with embodiment, the utility model is described further.
As shown in drawings, a kind of baffler for all-vanadium flow battery of the utility model, comprise the baffler 1 with hollow cavity, the diagonal position of described baffler 1 both sides has inlet opening 2 and fluid hole 8, the runner 5 of loose structure is provided with in the hollow cavity of baffler 1, hole in the runner 5 of described runner loose structure is through hole, gap reserved between the end of the runner 5 of described runner loose structure and baffler 1 inwall forms the public runner of feed liquor 3 being positioned at inlet opening 2 end and the public runner 6 of fluid being positioned at fluid hole 8 end respectively, the two ends of the runner 5 of described loose structure are respectively arranged with multiple feed liquor runner distribution openings 4 and multiple fluid runner distribution openings 7.
A cell adopts two bafflers.Due to positive pole and negative pole baffler design and use method used completely the same.Only with just very routine, its using method is described at this, negative pole in like manner can be analogized.Baffler 1 has inlet opening 2 and fluid hole 8 on the diagonal angle of both sides, for the circulation of anode electrolyte.The course of work of the present utility model is that the electrolyte of positive pole enters baffler 1 by fluid reservoir from inlet opening 2 by pump, then the end is flow to along the public runner 3 of feed liquor, electrolyte enters the runner 5 of loose structure from each feed liquor runner distribution openings 4 respectively, arrive fluid runner distribution openings 7, converge at the public runner 6 of fluid, final electrolyte arrives the fluid reservoir that fluid hole 8 gets back to positive pole, completes a circulation.The runner 5 of more than three and three loose structures is at least adopted in the utility model.
The loose structure of the baffler 1 that the present invention adopts increases electrolyte in baffler internal flow path, increases the uniformity that electrolyte distributes on electrode, improves the performance of all-vanadium flow battery.
Claims (3)
1. the baffler for all-vanadium flow battery, comprise the baffler (1) with hollow cavity, it is characterized in that: the diagonal position of described baffler (1) both sides has inlet opening (2) and fluid hole (8), the runner (5) of loose structure is provided with in the hollow cavity of baffler (1), hole in the runner (5) of described runner loose structure is through hole, gap reserved between the end of the runner (5) of described runner loose structure and baffler (1) inwall is formed respectively and is positioned at the public runner of feed liquor (3) that inlet opening (2) holds and is positioned at the public runner of fluid (6) that fluid hole (8) holds, the two ends of the runner (5) of described loose structure are respectively arranged with multiple feed liquor runner distribution openings (4) and multiple fluid runner distribution openings (7).
2. a kind of baffler for all-vanadium flow battery according to claim 1, is characterized in that: the porosity of the runner (5) of described loose structure is greater than 50%.
3. a kind of baffler for all-vanadium flow battery according to claim 1, is characterized in that: the material of described baffler (1) is polyethylene, polyvinyl chloride or polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402748.4U CN204651395U (en) | 2015-06-09 | 2015-06-09 | A kind of baffler for all-vanadium flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402748.4U CN204651395U (en) | 2015-06-09 | 2015-06-09 | A kind of baffler for all-vanadium flow battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651395U true CN204651395U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402748.4U Active CN204651395U (en) | 2015-06-09 | 2015-06-09 | A kind of baffler for all-vanadium flow battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN204651395U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634241A (en) * | 2017-08-25 | 2018-01-26 | 清华大学 | Liquid flow frame for flow battery |
| CN108232368A (en) * | 2016-12-15 | 2018-06-29 | 中国科学院大连化学物理研究所 | A kind of metal-air batteries system |
-
2015
- 2015-06-09 CN CN201520402748.4U patent/CN204651395U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232368A (en) * | 2016-12-15 | 2018-06-29 | 中国科学院大连化学物理研究所 | A kind of metal-air batteries system |
| CN107634241A (en) * | 2017-08-25 | 2018-01-26 | 清华大学 | Liquid flow frame for flow battery |
| CN107634241B (en) * | 2017-08-25 | 2024-03-12 | 清华大学 | Flow frame for flow battery |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |