CN106229536A - Electrolyte balance device and there is its flow battery - Google Patents
Electrolyte balance device and there is its flow battery Download PDFInfo
- Publication number
- CN106229536A CN106229536A CN201610795605.3A CN201610795605A CN106229536A CN 106229536 A CN106229536 A CN 106229536A CN 201610795605 A CN201610795605 A CN 201610795605A CN 106229536 A CN106229536 A CN 106229536A
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- China
- Prior art keywords
- fluid reservoir
- electrolyte balance
- balance device
- port
- coke slurry
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Classifications
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- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
-
- 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
Abstract
The invention provides a kind of electrolyte balance device and have its flow battery, electrolyte balance device includes: connecting pipeline, for being arranged between the first fluid reservoir of flow battery and the second fluid reservoir to connect the first fluid reservoir and the second fluid reservoir；Water coke slurry parts, are arranged in connecting pipeline, are used for the moisture in connection the first fluid reservoir and the second fluid reservoir and isolate the electrolyte ion in the first fluid reservoir and the second fluid reservoir；The electrolyte balance device of application technical solution of the present invention, it is possible to prevent flow battery during life-time service and causes the volume of positive and negative electrode electrolyte the most unbalance owing to water migrates, solve that vanadium redox battery of the prior art electrolyte in During Process of Long-term Operation is unbalance and the problem that causes cell performance decay.
Description
Technical field
The present invention relates to flow battery field, in particular to a kind of electrolyte balance device and the liquid stream with it
Battery.
Background technology
Flow battery is a class model electrochemical energy storage system, and compared to other energy storage technologies, flow battery has power
Greatly, capacity is big, energy conversion efficiency is high, length in service life, safety are high and the advantage such as environmental protection, supporting in regenerative resource
The fields such as energy storage, intelligent grid peak regulation, communication base station and distributed power source are respectively provided with the prospect of being widely applied.
Vanadium redox battery is the one in flow battery, and its principle is to utilize between different valence state vanadium ion
Redox reaction carry out energy storage and utilization.As it is shown in figure 1, be different from the conventional chemical such as lead-acid battery, lithium battery electricity
Pond, the reactant electrolyte of vanadium cell is in the fluid reservoir 1 independently leaving outside in, and during discharge and recharge, electrolyte is by acidproof
Liquid pump 2 inputs battery pile 3 inside and is electrochemically reacted, and the electrolyte reacted returns in fluid reservoir 1, thus is formed
The circulating fluid loop of Guan Bi.
But, vanadium cell is during long-term cycle charge-discharge, owing to various side reactions and vanadium ion permeable membrane spread,
Positive and negative electrode electrolyte can be the most unbalance and occur serious water to migrate, and then causes the electrolyte volume in positive and negative electrode fluid reservoir
Unbalance, make from forming systematic function continuous decrement, and control to bring extreme difficulties to system.
Summary of the invention
Present invention is primarily targeted at and a kind of electrolyte balance device is provided and there is its flow battery, existing to solve
There is the electrolyte in During Process of Long-term Operation of the vanadium redox battery in technology unbalance and cause cell performance decay
Problem.
To achieve these goals, according to an aspect of the invention, it is provided a kind of electrolyte balance device, electrolyte
Bascule includes: connecting pipeline, for being arranged between the first fluid reservoir of flow battery and the second fluid reservoir to connect the
One fluid reservoir and the second fluid reservoir；Water coke slurry parts, are arranged in connecting pipeline, for connection the first fluid reservoir and the second liquid storage
Moisture in tank also isolates the electrolyte ion in the first fluid reservoir and the second fluid reservoir.
Further, connecting pipeline includes: communicating pipe, and one end of communicating pipe is used for connecting with the first fluid reservoir, communicating pipe
The other end for connect with the second fluid reservoir, it is interior so that the tube chamber of communicating pipe is divided into two that water coke slurry parts are arranged on communicating pipe
Section.
Further, electrolyte balance device also includes: the first control valve, is arranged on communicating pipe, and the first control valve sets
Put on the pipeline section between the water coke slurry parts and the first fluid reservoir of communicating pipe.
Further, electrolyte balance device also includes: the second control valve, is arranged on communicating pipe, and the second control valve sets
Put on the pipeline section between the water coke slurry parts and the second fluid reservoir of communicating pipe.
Further, water coke slurry parts are water coke slurry barrier film.
Further, connecting pipeline includes: commuting case, and commuting case has the first port for connecting with the first fluid reservoir
With the second port for connecting with the second fluid reservoir；It is interior to isolate the first port and second that water coke slurry parts are arranged on commuting case
Port.
Further, connecting pipeline also includes that the first arm, one end of the first arm connect with the first port, the first arm
The other end and the first fluid reservoir connection.
Further, the first arm is many, and each first arm is mounted on the first control valve.
Further, connecting pipeline also includes that the second arm, one end of the second arm connect with the second port, the second arm
The other end and the second fluid reservoir connection.
Further, the second arm is many, and each second arm is mounted on the second control valve.
Further, water coke slurry parts are water coke slurry barrier film, and the cavity of commuting case is divided into the first chamber by water coke slurry barrier film
Room and the second chamber, the first port and the first chamber, the second port and the second chamber.
Further, water coke slurry parts are exchange pipe, and the first port is two, one end of exchange pipe and first port
Connection, the other end of exchange pipe connects with another first port, and the second port connects with the cavity of commuting case.
Further, water coke slurry parts are made up of selectively permeable material.
According to a further aspect in the invention, it is provided that a kind of flow battery, including the first fluid reservoir and the second fluid reservoir, liquid
Galvanic battery also includes: electrolyte balance device, and electrolyte balance device is the electrolyte balance device of foregoing, electrolytic equilibrium
One end of the connecting pipeline of device connects with the first fluid reservoir, the other end of connecting pipeline and the connection of the second fluid reservoir.
The electrolyte balance device of application technical solution of the present invention, by arranging connecting pipeline by the first storage of flow battery
Flow container and the connection of the second fluid reservoir, be provided with water coke slurry parts in connecting pipeline, and water coke slurry parts are for connection the first liquid storage
Moisture in tank and the second fluid reservoir also isolates the electrolyte ion in the first fluid reservoir and the second fluid reservoir.As such, it is possible to it is anti-
Only flow battery causes the volume of positive and negative electrode electrolyte the most unbalance during life-time service owing to water migrates, and solves
Vanadium redox battery of the prior art electrolyte in During Process of Long-term Operation is unbalance and causes cell performance decay
Problem.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of flow battery of the prior art；
Fig. 2 is that the most optional a kind of electrolyte balance device structure that arranges on flow battery is shown
It is intended to；
Fig. 3 is that optional another kind of electrolyte balance device arranges structure on flow battery according to embodiments of the present invention
Schematic diagram；And
Fig. 4 is that the third electrolyte balance device optional arranges structure on flow battery according to embodiments of the present invention
Schematic diagram；And
Fig. 5 is the water coke slurry device in Fig. 4 and the cross-sectional view of inverting chamber.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, water coke slurry parts；20, the first fluid reservoir；30, the second fluid reservoir；40, communicating pipe；41, the first arm；42,
Two arms；50, the first control valve；60, the second control valve；70, commuting case.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Electrolyte balance device according to embodiments of the present invention, as in figure 2 it is shown, electrolyte balance device includes: communicating pipe
Road and water coke slurry parts 10, connecting pipeline for be arranged between the first fluid reservoir 20 and second fluid reservoir 30 of flow battery with
Connect the first fluid reservoir 20 and the second fluid reservoir 30；Water coke slurry parts 10 are arranged in connecting pipeline, for connection the first liquid storage
Moisture in tank 20 and the second fluid reservoir 30 also isolates the electrolyte ion in the first fluid reservoir 20 and the second fluid reservoir 30.
The electrolyte balance device of application technical solution of the present invention, by arranging connecting pipeline by the first storage of flow battery
Flow container 20 connects with the second fluid reservoir 30, is provided with water coke slurry parts 10 in connecting pipeline, and water coke slurry parts 10 are used for connecting
Moisture in first fluid reservoir 20 and the second fluid reservoir 30 also isolates the electrolyte in the first fluid reservoir 20 and the second fluid reservoir 30
Ion.As such, it is possible to prevent flow battery during life-time service owing to water migrates and cause the volume of positive and negative electrode electrolyte
The most unbalance, solve vanadium redox battery of the prior art electrolyte in During Process of Long-term Operation unbalance and lead
The problem causing cell performance decay.
Below in conjunction with specific embodiment, the solution of the present invention is described in detail:
Embodiment 1:
In the present embodiment, as in figure 2 it is shown, alternatively, connecting pipeline includes: communicating pipe 40, one end of communicating pipe 40 with
First fluid reservoir 20 connects, and the other end and second fluid reservoir 30 of communicating pipe 40 connect, and water coke slurry parts 10 are arranged on communicating pipe
It is divided into two sections with the tube chamber by communicating pipe 40 in 40.
Alternatively, water coke slurry parts 10 are the water coke slurry barrier film of former shape, water coke slurry barrier film and the cross section of communicating pipe 40
Matching, the cross-sectional direction along communicating pipe 40 of water coke slurry barrier film was arranged in communicating pipe 40, thus by the first fluid reservoir 20
Keep apart with the second fluid reservoir 30.
Water coke slurry barrier film can not only allow the moisture between the first fluid reservoir 20 and the second fluid reservoir 30 to flow freely, and
And the electrolyte ion in the first fluid reservoir 20 and the second fluid reservoir 30 can be stoped mutually to flow, thus at the first fluid reservoir 20
Water is occurred when migrating, to play the effect of equilibrium water conten with the second fluid reservoir 30, it is ensured that in the first fluid reservoir 20 and the second fluid reservoir 30
The balance of electrolyte.
Alternatively, the material of water coke slurry barrier film is selectively permeable material, it is possible to allows hydrone to pass freely through, and is electrolysed
Liquid ion is difficult to pass through.The kind of selectively permeable material include but not limited to cation exchange resin, anion exchange resin,
The Nafion of one or more in amphoteric ion-exchange resin, poromerics, such as DuPont, Japan Asahi
Flemion, Daramic film, sulfonated polyether sulfone, sulfonated polyether ketone, sulfonated polyimide, sulfonated poly aryl ether ketone and the sulphur of company
Change polyether sulphone etc..
In order to water coke slurry process is effectively controlled, alternatively, it is provided with the first control valve 50 communicating pipe 40
With the second control valve 60, the first control valve 50 is arranged on the pipeline section between water coke slurry parts 10 and the first fluid reservoir 20, and second
Control valve 60 is arranged on the pipeline section between water coke slurry parts 10 and second fluid reservoir 30 of communicating pipe 40, by arranging the first control
The water coke slurry process of the first fluid reservoir 20 and the second fluid reservoir 30 can individually be carried out by valve 50 processed and the second control valve 60 respectively
Control.
Embodiment 2:
As it is shown on figure 3, the present embodiment is relative to the difference of embodiment 1, connecting pipeline includes: commuting case 70, exchange
Case 70 has the first port connected with the first fluid reservoir 20 and the second port connected with the second fluid reservoir 30；Water coke slurry parts
10 are arranged in commuting case 70 to isolate the first port and the second port.
Alternatively, water coke slurry parts 10 are the water coke slurry barrier film that the cross section with commuting case 70 mates, water coke slurry barrier film edge
The cross-sectional direction of commuting case 70 arranges and commuting case 70 is divided into the first equal chamber of volume and the second chamber, the first port
With the first chamber, the second port and the second chamber thus the first fluid reservoir 20 and the second fluid reservoir 30 are kept apart,
Thus occur water when migrating, to play the effect of equilibrium water conten at the first fluid reservoir 20 and the second fluid reservoir 30, it is ensured that the first fluid reservoir
The balance of 20 and second electrolyte in fluid reservoir 30.
Alternatively, the material of water coke slurry barrier film is selectively permeable material, it is possible to allows hydrone to pass freely through, and is electrolysed
Liquid ion is difficult to pass through.The kind of selectively permeable material include but not limited to cation exchange resin, anion exchange resin,
The Nafion of one or more in amphoteric ion-exchange resin, poromerics, such as DuPont, Japan Asahi
Flemion, Daramic film, sulfonated polyether sulfone, sulfonated polyether ketone, sulfonated polyimide, sulfonated poly aryl ether ketone and the sulphur of company
Change polyether sulphone etc..
The first port and the first fluid reservoir 20 in order to make commuting case 70 can be easy to connection, alternatively, at commuting case 70
The first port and the first fluid reservoir 20 between be provided with the first arm 41, one end of the first arm 41 connects with the first port,
The other end and first fluid reservoir 20 of the first arm 41 connect.
Correspondingly, the second port and the second fluid reservoir 30 in order to make commuting case 70 can be easy to connection, at commuting case 70
The second port and the second fluid reservoir 30 between be provided with the second arm 42, one end of the second arm 42 connects with the second port,
The other end and second fluid reservoir 30 of the second arm 42 connect.Can be easy to by arranging the first arm 41 and the second arm 42
First fluid reservoir 20 connects with commuting case 70 with the second fluid reservoir 30.
In order to ensure the flow of water coke slurry, the first arm 41 and the second arm 42 are provided with many, by arranging many
First arm 41 and Duo Gen second arm 42 can strengthen the water coke slurry ability between the first fluid reservoir 20 and the second fluid reservoir 30.
In order to water coke slurry process is effectively controlled, each first arm 41 is mounted on the first control valve 50,
It is mounted on the second control valve 60 on each second arm 42.By arranging the first control on the first arm 41 and the second arm 42
The water coke slurry process of the first fluid reservoir 20 and the second fluid reservoir 30 can individually be carried out by valve 50 processed and the second control valve 60 respectively
Control.
Embodiment 3:
As shown in Figure 4, the present embodiment is relative to embodiment 2 difference, and water coke slurry parts 10 are exchange pipe, such as Fig. 4 and
Shown in Fig. 5, exchange pipe is provided with many, and many exchange the pipe length along commuting case 70 to being extended in commuting case 70.Exchange
Being provided with two the first ports on case 70, two the first ports lay respectively at the two ends of commuting case 70, one end of each exchange pipe
Being connected with one of them first port respectively, the other end of each exchange pipe is connected with another first port respectively, and two
Individual first port is connected with the first fluid reservoir 20 by two first arms 41, so that the inner chamber of each exchange pipe and the first storage
Flow container 20 connects.
Being further opened with two the second ports on the sidewall of commuting case 70, the cavity of two the second ports and commuting case 70 is even
Logical, two the second ports are connected with the second fluid reservoir 30 by two second arms 42 so that the cavity of commuting case 70 and
Second fluid reservoir 30 connects.By exchange pipe by mutually isolated to the first fluid reservoir 20 and the second fluid reservoir 30, exchange pipe is by selecting
Property penetration material is made.Alternatively, the cast of exchange pipe includes but not limited to straight type pipe, coil, U pipe etc..
Alternatively, the material of water coke slurry barrier film is selectively permeable material, it is possible to allows hydrone to pass freely through, and is electrolysed
Liquid ion is difficult to pass through, thus occurs water to play the work of equilibrium water conten when migrating at the first fluid reservoir 20 and the second fluid reservoir 30
With, it is ensured that the balance of electrolyte in the first fluid reservoir 20 and the second fluid reservoir 30.
Alternatively, the kind of selectively permeable material include but not limited to cation exchange resin, anion exchange resin,
The Nafion of one or more in amphoteric ion-exchange resin, poromerics, such as DuPont, Japan Asahi
Flemion, Daramic film, sulfonated polyether sulfone, sulfonated polyether ketone, sulfonated polyimide, sulfonated poly aryl ether ketone and the sulphur of company
Change polyether sulphone etc..
Present invention also offers a kind of flow battery, including the first fluid reservoir 20 and the second fluid reservoir 30, flow battery is also
Including: electrolyte balance device, electrolyte balance device is the electrolyte balance device of above-described embodiment, electrolytic equilibrium device
One end of connecting pipeline connects with the first fluid reservoir 20, and the other end and second fluid reservoir 30 of connecting pipeline connect.
The flow battery of the electrolyte balance device of application above-described embodiment, by arranging connecting pipeline by flow battery
First fluid reservoir 20 connects with the second fluid reservoir 30, is provided with water coke slurry parts 10 in connecting pipeline, and water coke slurry parts 10 are used
Moisture in connecting the first fluid reservoir 20 and the second fluid reservoir 30 is also isolated in the first fluid reservoir 20 and the second fluid reservoir 30
Electrolyte ion.As such, it is possible to prevent flow battery during life-time service owing to water migrates and cause positive and negative electrode electrolyte
Volume the most unbalance, solve vanadium redox battery of the prior art in During Process of Long-term Operation electrolyte lose
The problem weighed and cause cell performance decay.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (14)
1. an electrolyte balance device, it is characterised in that described electrolyte balance device includes:
Connecting pipeline, described for being arranged between first fluid reservoir (20) of flow battery and the second fluid reservoir (30) with connection
First fluid reservoir (20) and described second fluid reservoir (30)；
Water coke slurry parts (10), are arranged in described connecting pipeline, are used for connecting described first fluid reservoir (20) and described second
Moisture in fluid reservoir (30) also isolates the electrolyte ion in described first fluid reservoir (20) and described second fluid reservoir (30).
Electrolyte balance device the most according to claim 1, it is characterised in that described connecting pipeline includes:
Communicating pipe (40), one end of described communicating pipe (40) is used for connecting with described first fluid reservoir (20), described communicating pipe
(40) the other end is for connecting with described second fluid reservoir (30), and described water coke slurry parts (10) are arranged on described communicating pipe
(40) it is divided into two sections with the tube chamber by described communicating pipe (40) in.
Electrolyte balance device the most according to claim 2, it is characterised in that described electrolyte balance device also includes:
First control valve (50), was arranged on described communicating pipe (40), and described first control valve (50) is arranged on described communicating pipe
(40) on the pipeline section between described water coke slurry parts (10) and described first fluid reservoir (20).
Electrolyte balance device the most according to claim 3, it is characterised in that described electrolyte balance device also includes:
Second control valve (60), was arranged on described communicating pipe (40), and described second control valve (60) is arranged on described communicating pipe
(40) on the pipeline section between described water coke slurry parts (10) and described second fluid reservoir (30).
Electrolyte balance device the most according to claim 2, it is characterised in that described water coke slurry parts (10) are water coke slurry
Barrier film.
Electrolyte balance device the most according to claim 1, it is characterised in that described connecting pipeline includes:
Commuting case (70), described commuting case (70) has the first port for connecting with described first fluid reservoir (20) and is used for
The second port connected with described second fluid reservoir (30)；Described water coke slurry parts (10) be arranged in described commuting case (70) with
Isolate described first port and described second port.
Electrolyte balance device the most according to claim 6, it is characterised in that described connecting pipeline also includes the first arm
(41), one end of described first arm (41) connects with described first port, and the other end of described first arm (41) is with described
First fluid reservoir (20) connects.
Electrolyte balance device the most according to claim 7, it is characterised in that described first arm (41) is many, respectively
The first control valve (50) it is mounted on first arm (41) described in root.
Electrolyte balance device the most according to claim 6, it is characterised in that described connecting pipeline also includes the second arm
(42), one end of described second arm (42) connects with described second port, and the other end of described second arm (42) is with described
Second fluid reservoir (30) connects.
Electrolyte balance device the most according to claim 9, it is characterised in that described second arm (42) is many, respectively
The second control valve (60) it is mounted on second arm (42) described in root.
11. electrolyte balance devices according to claim 6, it is characterised in that described water coke slurry parts (10) are that water is handed over
Changing barrier film, the cavity of described commuting case (70) is divided into the first chamber and the second chamber by described water coke slurry barrier film, and described first
Port and described first chamber, described second port and described second chamber.
12. electrolyte balance devices according to claim 6, it is characterised in that described water coke slurry parts (10) are exchange
Pipe, described first port is two, and one end first port described with of described exchange pipe connects, another of described exchange pipe
End connects with the first port another described, and described second port connects with the cavity of described commuting case (70).
13. according to the electrolyte balance device according to any one of claim 1 to 12, it is characterised in that described water coke slurry portion
Part (10) is made up of selectively permeable material.
14. 1 kinds of flow batteries, including the first fluid reservoir (20) and the second fluid reservoir (30), it is characterised in that described liquid stream electricity
Pond also includes:
Electrolyte balance device, described electrolyte balance device is the electrolyte balance according to any one of claim 1 to 13
Device, one end of the connecting pipeline of described electrolytic equilibrium device connects with described first fluid reservoir (20), described connecting pipeline
The other end connects with described second fluid reservoir (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795605.3A CN106229536B (en) | 2016-08-31 | 2016-08-31 | Electrolyte balancing device and flow battery with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795605.3A CN106229536B (en) | 2016-08-31 | 2016-08-31 | Electrolyte balancing device and flow battery with same |
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| CN106229536B CN106229536B (en) | 2023-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11508975B2 (en) * | 2018-03-01 | 2022-11-22 | Invinity Energy Systems (Ireland) Limited | Means for maintaining desired liquid level between inter-connected tanks |
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