CN205810966U - A kind of redox flow batteries - Google Patents
A kind of redox flow batteries Download PDFInfo
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- CN205810966U CN205810966U CN201620428407.9U CN201620428407U CN205810966U CN 205810966 U CN205810966 U CN 205810966U CN 201620428407 U CN201620428407 U CN 201620428407U CN 205810966 U CN205810966 U CN 205810966U
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- positive pole
- negative pole
- fluid reservoir
- auxiliary tank
- battery pile
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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
This utility model relates to a kind of redox flow batteries, including battery pile, positive pole fluid reservoir, positive pole auxiliary tank, negative pole fluid reservoir and negative pole auxiliary tank, the top of positive pole fluid reservoir is connected with the top of battery pile by the main input duct of band valve respectively with the top of negative pole fluid reservoir, the bottom of positive pole fluid reservoir is connected with the bottom of battery pile with the main drain pipe road of drawing liquid pump by band valve respectively with the bottom of negative pole fluid reservoir, the high level of positive pole auxiliary tank and negative pole auxiliary tank is below the minimum interface of battery pile, positive pole auxiliary tank is connected with battery pile by the auxiliary input duct of band valve respectively with negative pole auxiliary tank, positive pole auxiliary tank is connected with battery pile with the auxiliary drain pipe road of drawing liquid pump by band valve respectively with negative pole auxiliary tank.This battery solves the problems such as the burn into self discharge that in horizontal structure, pile long period of soaking is brought in the electrolytic solution, extends the service life of redox flow batteries, convenient maintenance.
Description
Technical field
This utility model belongs to field of batteries, is specifically related to a kind of redox flow batteries.
Background technology
Within the active substance of conventional accumulators is inclusive in solid state electrode, redox flow batteries (e.g., all-vanadium flow
Battery) positive and negative electrode active substance be primarily present in electrolyte, its electrolyte containing positive and negative electrode active matter is attached separately to
In two fluid reservoirs.As a example by all-vanadium flow battery, vanadium ion solution is positive and negative electrode active substance, and positive pole is V (IV)/V (V)
Electricity is right, and negative pole is then that V (III)/V (II) electricity is right, and its solvent used is dilute sulfuric acid, and anode electrolyte is V (V) and V (IV)
Sulfuric acid solution, electrolyte liquid is V (III) and V (II) sulfuric acid solution.Ideally, after battery is fully charged, positive solution is complete
Portion is (V) sulfate ion solution, negative solution all V (II) sulfuric acid solution, and OCP is more for 1.6V.All-vanadium flow electricity
During the work of pond, being circulated through all-vanadium flow battery by liquid-feeding pump, the positive and negative electrode electrolyte in all-vanadium flow battery is handed over by ion
Change film to separate.
Redox flow batteries structure is mainly horizontal structure or up-down structure at present.United States Patent (USP)
The all-vanadium flow battery of multiple fluid reservoirs disclosed in US20080241643, is that fluid reservoir is divided into multiple modularity, increases electrolysis
Liquid amasss, can effective electrolyte the first volume, maintain electrolyte the second volume, it is allowed to small lot operation electrolyte simultaneously, store up
Flow container and pile belong to horizontal structure design.A kind of flow battery, pile and liquid storage disclosed in Japan Patent JP2006147376
Tank is up-down structure, calculates pressure differential between anode electrolyte and electrolyte liquid by controller, and then controls each circulation
The rotating speed of pump, makes the pressure differential between anode electrolyte and electrolyte liquid in prescribed limit.Chinese patent
201010108417.1 disclosed a kind of redox flow battery system, pile and fluid reservoir are horizontal structure, a kind of permissible
Reducing redox flow batteries leakage current, improve the novel battery system of battery charging and discharging performance, positive and negative electrode fluid reservoir divides
It is not completely isolated to upper and lower two parts with dividing plate.But said structure there is problems in that 1) redox flow batteries employing
During horizontal structure, when battery does not runs, pile long period of soaking in the electrolytic solution, easily produces the problems such as burn into self discharge；2)
When redox flow batteries uses up-down structure, need from the fluid reservoir that potential energy is low, be transported to electrolyte the electricity that potential energy is high
In heap, causing pump loss to increase, system effectiveness reduces.
Utility model content
The purpose of this utility model is to provide a kind of redox flow batteries, and this redox flow batteries solves water
The problems such as the burn into self discharge that in flat structure, pile long period of soaking is brought in the electrolytic solution, extend redox flow batteries
Service life, convenient maintenance.
This utility model be the technical scheme is that
A kind of redox flow batteries, including battery pile, positive pole fluid reservoir, positive pole auxiliary tank, negative pole fluid reservoir and
Negative pole auxiliary tank, the top of positive pole fluid reservoir and the top of negative pole fluid reservoir are respectively by main input duct and the battery of band valve
The top connection of pile, the bottom of positive pole fluid reservoir and the bottom of negative pole fluid reservoir are gone out by the master of band valve and drawing liquid pump respectively
Liquid pipeline connects with the bottom of battery pile, and the high level of positive pole auxiliary tank and negative pole auxiliary tank is below battery pile
Low interface, positive pole auxiliary tank and negative pole auxiliary tank are connected with battery pile by the auxiliary input duct of band valve respectively, and positive pole is auxiliary
Tank is helped to be connected with battery pile with the auxiliary drain pipe road of drawing liquid pump by band valve respectively with negative pole auxiliary tank.
Further, main drain pipe road tank connected with positive pole liquid storage and assist tank connected auxiliary drain pipe road altogether with positive pole
With a drawing liquid pump, described drawing liquid pump is positive pole drawing liquid pump, wherein, and positive pole drawing liquid delivery side of pump and the connection pipeline of battery pile
For common conduit；Main drain pipe road tank connected with negative pole liquid storage and with negative pole assist tank connected auxiliary drain pipe road share one
Drawing liquid pump, described drawing liquid pump is negative pole drawing liquid pump, and wherein, negative pole drawing liquid delivery side of pump is shared with the connection pipeline of battery pile
Pipeline.
Further, the high level of positive pole fluid reservoir and negative pole fluid reservoir is above the highest interface of battery pile.
The beneficial effects of the utility model are:
1. this utility model sets up positive pole auxiliary tank and negative pole auxiliary tank and corresponding bypass duct, at redox flow
When galvanic battery is stopped transport, close main road pipeline valve, open bypass duct valve, the electrolysis under potential energy effect, in battery pile
Liquid stream is in auxiliary tank, when redox flow batteries runs, then the liquid drawing liquid pump in auxiliary tank is extracted into battery electricity
In heap, then open main road pipeline valve, close bypass duct valve, carry out normal power generation, this redox flow batteries solution
The problems such as the burn into self discharge that pile long period of soaking in horizontal structure of having determined is brought in the electrolytic solution, extend redox flow
The service life of galvanic battery；When battery pile needs to safeguard, can electrolyte be left in auxiliary tank, need not be separately provided
The tank body deposited specially, convenient maintenance.
2. due to operation when operation when redox flow batteries is stopped transport and redox flow batteries run it is not
Synchronization is carried out, so sharing drawing liquid pump not interfere with corresponding operating, and has saved cost.
3. redox flow batteries run time, electrolyte under the dual function of potential energy difference and drawing liquid pump from fluid reservoir
Flow to battery pile, reduce the loss of drawing liquid pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
In figure: 1-battery pile；2-positive pole fluid reservoir；3-negative pole fluid reservoir；4-positive pole drawing liquid pump；5-negative pole drawing liquid pump；
6-and the valve in the tank connected main input duct of positive pole liquid storage；7-and the valve in the tank connected main input duct of negative pole liquid storage
Door；8-and the valve on the tank connected main drain pipe road of positive pole liquid storage；On 9-and the tank connected main drain pipe road of positive pole liquid storage
Valve；10-assists the valve on tank connected auxiliary drain pipe road with positive pole；11-assists tank connected auxiliary input duct with positive pole
On valve；12-assists the valve in tank connected auxiliary input duct with negative pole；13-and negative pole auxiliary tank connected auxiliary go out liquid
Valve on pipeline；14-positive pole auxiliary tank；15-negative pole auxiliary tank.
Detailed description of the invention
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of redox flow batteries, including battery pile 1, positive pole fluid reservoir 2, positive pole auxiliary tank
14, negative pole fluid reservoir 3 and negative pole auxiliary tank 15, the top of positive pole fluid reservoir 2 and the top of negative pole fluid reservoir 3 are respectively by band valve
The door main input duct of (respectively 6 and 7) connects with the top of battery pile 1, the bottom of positive pole fluid reservoir 2 and negative pole fluid reservoir
The bottom of 3 is respectively by the main drain pipe road of band valve (respectively 8 and 9) and drawing liquid pump (respectively 4 and 5) and battery pile 1
Bottom connection, the high level of positive pole auxiliary tank 14 and negative pole auxiliary tank 15 is below the minimum interface of battery pile 1, positive pole
Auxiliary tank 14 and negative pole auxiliary tank 15 are respectively by the auxiliary input duct of band valve (respectively 11 and 12) with battery pile 1 even
Logical, positive pole auxiliary tank 14 and negative pole auxiliary tank 15 are respectively by band valve (respectively 10 and 13) and drawing liquid pump (respectively 4 and 5)
Auxiliary drain pipe road connect with battery pile 1.
This utility model sets up positive pole auxiliary tank 14 and negative pole auxiliary tank 15 and corresponding bypass duct, in oxidoreduction
When flow battery is stopped transport, close main road pipeline valve, open bypass duct valve, the electricity under potential energy effect, in battery pile 1
Solve liquid stream in auxiliary tank (14 and 15), when redox flow batteries runs, then by the liquid in auxiliary tank (14 and 15)
It is extracted in battery pile 1 with drawing liquid pump (4 and 5), then opens main road pipeline valve, close bypass duct valve, carry out normal
Generating, this redox flow batteries solves the burn into that in horizontal structure, pile long period of soaking is brought in the electrolytic solution and certainly puts
The problems such as electricity, extend the service life of redox flow batteries；When battery pile 1 needs to safeguard, can be by electrolyte
Leave in auxiliary tank (14 and 15), the tank body deposited specially, convenient maintenance need not be separately provided.
As it is shown in figure 1, in the present embodiment, the main drain pipe road that is connected with positive pole fluid reservoir 2 and with positive pole auxiliary tank 14
The auxiliary drain pipe road connected shares a drawing liquid pump 4(i.e., positive pole drawing liquid pump 4), wherein, the outlet of positive pole drawing liquid pump 4 and battery
The connection pipeline of pile 1 is common conduit；The main drain pipe road that is connected with negative pole fluid reservoir 3 and being connected with negative pole auxiliary tank 15
Auxiliary drain pipe road shares a drawing liquid pump 5(i.e., negative pole drawing liquid pump 5), wherein, the outlet of negative pole drawing liquid pump 5 and battery pile 1
Connection pipeline is common conduit.Due to time operation when redox flow batteries is stopped transport and redox flow batteries run
Operation is not to synchronize to carry out, so sharing drawing liquid pump (4 and 5) not interfere with corresponding operating, and has saved cost.
In the present embodiment, the high level of positive pole fluid reservoir 2 and negative pole fluid reservoir 3 is above the highest of battery pile 1
Interface.Redox flow batteries run time, electrolyte under the dual function of potential energy difference and drawing liquid pump (4 and 5) from fluid reservoir
(2 and 3) flow to battery pile 1, reduce the loss of drawing liquid pump (4 and 5).
In the present embodiment, positive pole fluid reservoir 2, positive pole auxiliary tank 14, negative pole fluid reservoir 3 and the volume of negative pole auxiliary tank 15
Specification and quantity according to battery pile 1 determine, general range is 1L ~ 1000L.In the present embodiment, positive pole drawing liquid pump 4 is with negative
Pole drawing liquid pump 5 is variable frequency pump.
The workflow of this utility model embodiment is:
When redox flow batteries is stopped transport, close main road pipeline valve (6,7,8 and 9) and partial bypass valve (10 Hes
13), opening partial bypass pipeline valve (11 and 12), under potential energy effect, it is auxiliary that the anode electrolyte in battery pile 1 flows to positive pole
Help in tank 14, in the electrolyte liquid stream in battery pile 1 to negative pole auxiliary tank 15, when redox flow batteries needs to run
Time, close part bypass duct valve (11 and 12), open partial bypass valve (10 and 13), positive pole drawing liquid pump 4 and negative pole drawing liquid
Pump 5, positive pole drawing liquid pump 4 is by anode electrolyte suction battery pile 1, and negative pole drawing liquid pump 5 is by electrolyte liquid suction battery pile
1, after the electrolyte in battery pile 1 is collected, close bypass valve (10,11,12 and 13), open main road pipeline valve
(6,7,8 and 9), now, redox flow batteries brings into operation, and anode electrolyte is at potential energy difference and positive pole drawing liquid pump 4
Under effect, the bottom from positive pole fluid reservoir 2 flows to battery pile 1, and the anode electrolyte in battery pile 1 is in extruding impetus
Under flow to positive pole fluid reservoir 2 from top, be thusly-formed circulation, meanwhile, electrolyte liquid is at potential energy difference and negative pole drawing liquid pump 5
Under effect, the bottom from negative pole fluid reservoir 3 flows to battery pile 1, and the electrolyte liquid in battery pile 1 is in extruding impetus
Under flow to negative pole fluid reservoir 3 from top, be thusly-formed circulation.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of this utility model claims.
Claims (3)
1. a redox flow batteries, it is characterised in that: include battery pile, positive pole fluid reservoir, positive pole auxiliary tank, negative pole
Fluid reservoir and negative pole auxiliary tank, the top of positive pole fluid reservoir and the top of negative pole fluid reservoir are respectively by the main feed tube of band valve
Road connects with the top of battery pile, and the bottom of positive pole fluid reservoir and the bottom of negative pole fluid reservoir are respectively by band valve and drawing liquid
The main drain pipe road of pump connects with the bottom of battery pile, and the high level of positive pole auxiliary tank and negative pole auxiliary tank is below battery
The minimum interface of pile, positive pole auxiliary tank and negative pole auxiliary tank are respectively by the auxiliary input duct of band valve with battery pile even
Logical, positive pole auxiliary tank is connected with battery pile with the auxiliary drain pipe road of drawing liquid pump by band valve respectively with negative pole auxiliary tank.
2. a kind of redox flow batteries as claimed in claim 1, it is characterised in that: master tank connected with positive pole liquid storage goes out
Liquid pipeline and with positive pole assist tank connected auxiliary drain pipe road share a drawing liquid pump, described drawing liquid pump is positive pole drawing liquid pump, its
In, positive pole drawing liquid delivery side of pump is common conduit with the connection pipeline of battery pile；Main drain pipe tank connected with negative pole liquid storage
Road and assist tank connected auxiliary drain pipe road to share a drawing liquid pump with negative pole, described drawing liquid pump is negative pole drawing liquid pump, wherein, negative
Pole drawing liquid delivery side of pump is common conduit with the connection pipeline of battery pile.
3. a kind of redox flow batteries as claimed in claim 1, it is characterised in that: positive pole fluid reservoir and negative pole fluid reservoir
High level be above the highest interface of battery pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428407.9U CN205810966U (en) | 2016-05-12 | 2016-05-12 | A kind of redox flow batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428407.9U CN205810966U (en) | 2016-05-12 | 2016-05-12 | A kind of redox flow batteries |
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| Publication Number | Publication Date |
|---|---|
| CN205810966U true CN205810966U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428407.9U Active CN205810966U (en) | 2016-05-12 | 2016-05-12 | A kind of redox flow batteries |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410248A (en) * | 2016-05-12 | 2017-02-15 | 国网电力科学研究院武汉南瑞有限责任公司 | Redox flow battery |
-
2016
- 2016-05-12 CN CN201620428407.9U patent/CN205810966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410248A (en) * | 2016-05-12 | 2017-02-15 | 国网电力科学研究院武汉南瑞有限责任公司 | Redox flow battery |
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| GR01 | Patent grant |