CN109888351A - A kind of tree-shaped uniform flow field flow battery and its working method - Google Patents
A kind of tree-shaped uniform flow field flow battery and its working method Download PDFInfo
- Publication number
- CN109888351A CN109888351A CN201910053625.7A CN201910053625A CN109888351A CN 109888351 A CN109888351 A CN 109888351A CN 201910053625 A CN201910053625 A CN 201910053625A CN 109888351 A CN109888351 A CN 109888351A
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- anode
- tree
- shaped
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
Abstract
The present invention discloses a kind of tree-shaped uniform flow field flow battery and its working method, tree-shaped electrolyte supply branch passes through the tree form dispersed step by step by electrolyte distribution flow path expansion in tree-shaped uniform flow field flow battery, using the tree-shaped longitudinal inflow flow field dispersed step by step, guarantee that electrolyte can uniformly enter electrode surface, the electrolyte extent of reaction is improved, battery efficiency is promoted；A plurality of array-like electrolyte discharge branch, which is uniformly distributed, recycles fluid communication with electrolyte, flow field is longitudinally flowed out using the array distribution combined with inflow flow field, guarantee that electrolyte can flow out electrode after completion of the reaction with shortest process, reduces the consumed pump work of battery.
Description
Technical field
The present invention relates to flow battery technology fields, and in particular to tree-shaped uniform flow field flow battery and its working method.
Background technique
With environmental pollution, fossil energy is in short supply the problems such as get worse, people are to renewable energies such as wind energy, solar energy
The development and utilization in source is more and more extensive, but it is the straight of renewable energy that these renewable energy, which have intermittent, fluctuation,
It connects and grid-connected brings huge challenge.Extensive energy storage technology is the important hand for solving renewable energy power generation intermittent problems
Section, while being also the key technology for solving electric system imbalance between supply and demand, guaranteeing power grid operation, developing smart grid.It is existing
Energy storage technology is shown due to technologies such as the requirement of special geology geography, low energy densities, Gao Chengben, low circulation service life, it is difficult to be obtained
It is widely applied.For example lithium ion battery higher cost, cycle life are limited, safety is poor, lead-acid battery cycle life is short, this
A little problems make this kind of technology be difficult to be competent at the requirement of extensive energy storage.As a kind of novel extensive electrochemical energy storage technology,
Flow battery has obtained people and has more and more paid close attention to.Flow battery passes through the gain and loss for dissolving active material electronics in the electrolytic solution
(variation of valence) carries out the conversion of " electric energy-chemical energy-electric energy ", and then realizes the storage and release of electric energy.Relative to other storages
Energy technology, flow battery has output power and capacity is mutually indepedent, system flexible design, fast response time, energy efficiency are high,
The advantages that self-discharge rate is low and long service life, has obtained more and more applications in extensive energy storage field.
Current flow battery can be divided into two kinds of " circulation type " and " flowing through type " according to the difference of flow field structure, wherein " stream
Flow-through " flow battery is to flow to the other side in electrode side by electrolyte to carry out redox reaction realization operation, this mistake
Journey needs electrolyte to flow transversely across entire electrode surface, while bringing huge pump work to consume, due to being electrolysed in flow process
The consumption of matter also causes electrode surface electrolyte concentration to be unevenly distributed, and largely reduces the work effect of flow battery
Rate.
Therefore, the electrolyte pump merits and demerits occurred in flow process for flow battery are high, electrode Inner electrolysis matter concentration point
The problems such as cloth is uneven, a kind of reaction is uniform, the lower efficient flow battery of pump work urgently occurs.
Summary of the invention
In view of the above-mentioned problems of the prior art, it is an object of that present invention to provide a kind of reaction is efficient, power consumption saving
Tree-shaped uniform flow field flow battery and its working method improve battery efficiency, reduce the additional pump work of battery.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of tree-shaped uniform flow field flow battery, including be arranged on flow battery ontology positive flow-field plate, anode collection
Flowing plate, anode electrode, exchange membrane, negative electrode, negative pole currect collecting plate and cathode flow-field plate；
Anode collection plate is connected with positive flow-field plate and anode electrode, anode electrode and negative electrode pass through exchange membrane every
It opens, negative pole currect collecting plate is connected with negative electrode and cathode flow-field plate；
Anode electrolyte import, anode electrolyte distribution flow path, the supply of tree-shaped anode electrolyte are set in positive flow-field plate
Branch, array-like anode electrolyte discharge branch, anode electrolyte recycling flow path and anode electrolyte outlet；Anode electrolyte into
Mouth is that anode electrolyte distributes flow path import and flow battery outside is connected, tree-shaped anode electrolyte supply branch import and anode
Electrolyte distributes flow path and is connected, and tree-shaped anode electrolyte supply branch way outlet is connected by anode collection plate with anode electrode, battle array
The discharge branch import of column-shaped anode electrolyte is connected by anode collection plate with anode electrode, array-like anode electrolyte discharge branch
Way outlet is connected with anode electrolyte recycling flow path, and anode electrolyte outlet is that anode electrolyte recycles flowing path outlet and liquid stream electricity
It is connected on the outside of pond；
Tree-shaped anode electrolyte supply branch passes through the tree form dispersed step by step and distributes flow path expansion by anode electrolyte,
A plurality of array-like anode electrolyte discharge branch, which is uniformly distributed, recycles fluid communication with anode electrolyte；Anode collection plate be with
The plate in array distribution hole, duct and tree-shaped anode electrolyte supply branch way outlet and array-like anode electrolyte are arranged in collector plate
Out branch import is connected；
Cathode flow-field plate includes the import of electrolyte liquid, electrolyte liquid distribution flow path, tree-shaped electrolyte liquid supply branch
Road, array-like electrolyte liquid discharge branch, electrolyte liquid recycling flow path and the outlet of electrolyte liquid；Electrolyte liquid import
It distributes on the outside of flow path import and flow battery and is connected for cathode electrolyte, tree-shaped electrolyte liquid supply branch import and negative electricity
It solves liquid distribution flow path to be connected, tree-shaped electrolyte liquid supply branch way outlet is connected by negative pole currect collecting plate with negative electrode, array
The discharge branch import of shape electrolyte liquid is connected by negative pole currect collecting plate with negative electrode, and branch is discharged in array-like electrolyte liquid
Outlet is connected with electrolyte liquid recycling flow path, and the outlet of electrolyte liquid is that cathode electrolyte recycles flowing path outlet and flow battery
Outside is connected；
Tree-shaped electrolyte liquid supply branch passes through the tree form dispersed step by step and distributes flow path expansion by electrolyte liquid,
A plurality of array-like electrolyte liquid discharge branch is evenly distributed on electrolyte liquid recycling fluid communication；
Negative pole currect collecting plate is the plate with array distribution hole, and duct and tree-shaped electrolyte liquid supply branch in collector plate
Outlet and the discharge branch import of array-like electrolyte liquid are connected.
Further, tree-shaped anode electrolyte supply branch and tree-shaped electrolyte liquid supply branch divide step by step for y-bend is tree-shaped
Diffusing field, i.e., tree-shaped electrolyte supply branch route 1 electrolyte supply flow path and are divided into 4 branches, 4 branch with 90 ° of rotation arrays
Road is divided into 16 branches, and by " 1-4-16 ", dispersing mode is distributed step by step.
Further, array-like anode electrolyte discharge branch and array-like electrolyte liquid discharge branch are with " 3 × 3 " array
It is distributed on the outside of electrode.
Further, positive flow-field plate and cathode flow-field plate material therefor be inorganic non-metallic material, metallic composite or
High-molecular organic material.
Further, anode collection plate and negative pole currect collecting plate material are the conductive material of inorganic non-metallic or metal；Anode electricity
Pole and cathode electrode are conductive metallic material or carbon material with porous structure.
Further, exchange membrane is cation-exchange membrane, anion-exchange membrane or neutral exchange membrane.
Further, each tree-shaped anode electrolyte supply branch way outlet and the discharge branch import of each array-like anode electrolyte etc.
The setting of spacing interval.
Further, a plurality of tree-shaped electrolyte liquid supply branch way outlet and a plurality of array-like electrolyte liquid be discharged branch into
The equidistant interval setting of mouth.
The working method of tree-shaped uniform flow field flow battery, comprising the following steps:
Step S100: electrolyte is evenly distributed into electrode:
Anode electrolyte enters flow battery side of the positive electrode by anode electrolyte import, passes through anode under the action of pump work
Electrolyte distribution flow path is evenly distributed to tree-shaped anode electrolyte supply branch, into anode electrode；Meanwhile electrolyte liquid
Enter flow battery negative side by electrolyte liquid import, it is uniform by electrolyte liquid distribution flow path under the action of pump work
It is assigned to tree-shaped electrolyte liquid supply branch, into negative electrode；
Step S200: battery charging and discharging reaction:
Electrolyte carries out discharge and recharge reaction in electrode surface；
Step S300: the uniform short route outflow of electrolyte:
The electrolyte that anode electrolyte flows into after the reaction was completed, by each tree-shaped anode electrolyte supply branch outlet from away from
From the discharge branch entrance outflow of closer array-like anode electrolyte, converges into anode electrolyte recycling flow path and pass through anolyte
Liquid outlet discharge；Meanwhile electrolyte liquid is after the reaction was completed, the electricity flowed by each tree-shaped electrolyte liquid supply branch outlet
Solution liquid converges into electrolyte liquid recycling flow path and passes through from the array-like electrolyte liquid discharge branch entrance outflow being closer
Electrolyte liquid outlet discharge.
The present invention compared with the existing technology, has the following advantages that and effect:
Tree-shaped uniform flow field flow battery of the invention includes the positive flow-field plate being arranged on flow battery ontology, anode
Collector plate, anode electrode, exchange membrane, negative electrode, negative pole currect collecting plate and cathode flow-field plate；Anode collection plate and positive flow-field plate
It is connected with anode electrode, anode electrode and negative electrode are separated by exchange membrane, negative pole currect collecting plate and negative electrode and cathode stream
Field plate is connected；Tree-shaped electrolyte supply branch passes through the tree form dispersed step by step and distributes flow path expansion by electrolyte, using tree
Longitudinal inflow flow field that shape disperses step by step, guarantees that electrolyte can uniformly enter electrode surface, improves the electrolyte extent of reaction,
Further promote battery efficiency；A plurality of array-like electrolyte discharge branch, which is uniformly distributed, recycles fluid communication with electrolyte, uses
Flow field is longitudinally flowed out with flowing into the array distribution that flow field combines, guarantees that electrolyte after completion of the reaction can be with shortest process
Electrode is flowed out, the consumed pump work of battery is reduced.
Further, each tree-shaped electrolyte supply branch way outlet is equidistantly spaced with the discharge branch import of each array-like electrolyte
Setting, electrolyte export the electrolyte flowed into from the battle array being closer after the reaction was completed, by each tree-shaped electrolyte supply branch
The outflow of branch entrance is discharged in column-shaped electrolyte, converges into electrolyte recycling flow path discharge, further decreases the pressure between inlet and outlet
Difference reduces the additional pump work of battery, improves battery efficiency.
Detailed description of the invention
Fig. 1 is the tree-shaped uniform flow field flow battery structural schematic diagram of the present invention
Fig. 2 is the tree-shaped uniform flow field current collector of liquid flow battery plate side view of the present invention
Fig. 3 is that electrode of liquid flow cell Inner electrolysis mass flow moves process schematic under traditional " circulation type " type of flow
Fig. 4 is that electrode of liquid flow cell Inner electrolysis mass flow of the present invention moves process schematic
In figure: 1- anode flow-field plate, 2- anode collection plate, 3- anode electrode, 4- exchange membrane, 5- negative electrode, 6- cathode
Collector plate, 7- cathode flow-field plate, 8- anode electrolyte import, 9- anode electrolyte distribute flow path, and the tree-shaped anode electrolyte of 10- supplies
To branch, branch is discharged in 11- array-like anode electrolyte, and 12- anode electrolyte recycles flow path, and 13- anode electrolyte exports,
14- electrolyte liquid import, 15- electrolyte liquid distribute flow path, and the tree-shaped electrolyte liquid of 16- supplies branch, and 17- array-like is negative
Branch is discharged in pole electrolyte, and 18- electrolyte liquid recycles flow path, the outlet of 19- electrolyte liquid.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as to limit of the invention
It is fixed.
Referring to Fig. 1-2, tree-shaped uniform flow field flow battery of the invention, including the anode being arranged on flow battery ontology
Flow-field plate 1, anode collection plate 2, anode electrode 3, exchange membrane 4, negative electrode 5, negative pole currect collecting plate 6 and cathode flow-field plate 7；Anode
Collector plate 2 is connected with positive flow-field plate 1 and anode electrode 3, and anode electrode 3 and negative electrode 5 are separated by exchange membrane 4, cathode
Collector plate 6 is connected with negative electrode 5 and cathode flow-field plate 7.
Positive flow-field plate 1 includes anode electrolyte import 8, anode electrolyte distribution flow path 9, the supply of tree-shaped anode electrolyte
Branch 10, array-like anode electrolyte discharge branch 11, anode electrolyte recycling flow path 12 and anode electrolyte outlet 13；Anode
Electrolyte inlet 8 is that anode electrolyte distributes 9 import of flow path and flow battery outside is connected, and tree-shaped anode electrolyte supplies branch
10 imports and anode electrolyte distribution flow path 9 are connected, tree-shaped anode electrolyte supply branch 10 outlet by anode collection plate 2 and
Anode electrode 3 is connected, and tree-shaped anode electrolyte supply branch 10 is not connected to directly with array-like anode electrolyte discharge branch 11,
Discharge 11 import of branch of array-like anode electrolyte is connected by anode collection plate 2 with anode electrode 3, array-like anode electrolyte
The outlet of discharge branch 11 is connected with anode electrolyte recycling flow path 12, and flow path is recycled for anode electrolyte in anode electrolyte outlet 13
It is connected on the outside of 12 outlets and flow battery.
Positive flow-field plate 1 is to have anode electrolyte to distribute flow path 9, tree-shaped anode electrolyte supply branch 10, array-like
The flow-field plate that branch 11 and anode electrolyte recycling flow path 12 are distributed is discharged in anode electrolyte, wherein tree-shaped anode electrolyte supplies
Branch 10 passes through the binary tree form dispersed step by step and is unfolded by anode electrolyte distribution flow path 9, the discharge of array-like anode electrolyte
Branch 11 is evenly distributed on anode electrolyte recycling flow path 12.
Anode collection plate 2 is the plate with array distribution hole, duct and tree-shaped anode electrolyte supply branch in collector plate
The outlet of road 10 and discharge 11 import of branch of array-like anode electrolyte are connected.
Anode electrolyte recycling flow path 12 is disposed longitudinally in positive flow-field plate 1, and anode electrolyte outlet 13 is located at anode
1 top of flow-field plate, anode electrolyte import 8 are located on 1 side wall of positive flow-field plate.
The tree-shaped anode electrolyte supply branch 10 and array-like anode electrolyte discharge branch 11 are to flow positioned at anode
Intermesh disconnected pipeline in field plate 1, and tree-shaped anode electrolyte supply branch 10 outlet is arranged with array-like anode electrolyte
11 import of out branch is equidistantly spaced setting.
Cathode flow-field plate 7 includes electrolyte liquid import 13, electrolyte liquid distribution flow path 14, the confession of tree-shaped electrolyte liquid
To branch 16, array-like electrolyte liquid discharge branch 17, electrolyte liquid recycling flow path 18 and electrolyte liquid outlet 19；It is negative
Pole electrolyte inlet 14 is that cathode electrolyte distributes 15 import of flow path and flow battery outside is connected, tree-shaped electrolyte liquid supply
16 import of branch is connected with electrolyte liquid distribution flow path 15, and tree-shaped electrolyte liquid supply branch 16 outlet passes through negative pole currect collecting
Plate 6 is connected with negative electrode 5, and tree-shaped electrolyte liquid supply branch 16 and array-like electrolyte liquid discharge branch 17 be not direct
Connection, discharge 17 import of branch of array-like electrolyte liquid are connected by negative pole currect collecting plate 6 with negative electrode 5, array-like cathode
Electrolyte discharge branch 17 outlet is connected with electrolyte liquid recycling flow path 18, and electrolyte liquid outlet 19 is returned for cathode electrolyte
It receives and is connected on the outside of the outlet of flow path 18 and flow battery.
Cathode flow-field plate 7 is to have electrolyte liquid to distribute flow path 15, tree-shaped electrolyte liquid supply branch 16, array-like
The flow-field plate that branch 17 and electrolyte liquid recycling flow path 18 are distributed is discharged in electrolyte liquid, wherein tree-shaped electrolyte liquid supplies
Branch 16 passes through the binary tree form dispersed step by step and is unfolded by electrolyte liquid distribution flow path 15, the discharge of array-like electrolyte liquid
Branch 17 is evenly distributed on electrolyte liquid recycling flow path 18.
Negative pole currect collecting plate 6 is the plate with array distribution hole, duct and tree-shaped electrolyte liquid supply branch in collector plate
The outlet of road 16 and discharge 17 import of branch of array-like electrolyte liquid are connected.
Electrolyte liquid recycling flow path 18 is disposed longitudinally in cathode flow-field plate 7, and electrolyte liquid outlet 19 is located at cathode
7 top of flow-field plate, electrolyte liquid import 14 are located on 7 side wall of cathode flow-field plate.
Tree-shaped electrolyte liquid supply branch 16 and array-like electrolyte liquid discharge branch 17 are positioned at cathode flow-field plate 7
In intermesh disconnected pipeline.Branch is discharged with array-like electrolyte liquid in tree-shaped electrolyte liquid supply branch 16 outlet
17 imports are equidistantly spaced setting.
Tree-shaped anode electrolyte supply branch 10 and tree-shaped electrolyte liquid supply branch 16 are that y-bend is tree-shaped to be dispersed step by step
Flow field, i.e., tree-shaped electrolyte supply branch can be divided into 4 branches by 1 electrolyte supply flow path with 90 ° of rotation arrays, 4
Branch is further divided into 16 branches, and by " 1-4-16 ", so that electrolyte is entered electrode more uniform for dispersing mode step by step；Battle array
Branch 11 and array-like electrolyte liquid discharge branch 17 is discharged with " 3 × 3 " array distribution in outside electrode in column-shaped anode electrolyte
Side.
Positive flow-field plate 1 and 7 material therefor of cathode flow-field plate have mechanical strength required for flow battery and for institute
With the corrosion resistance of electrolyte, the metallic composites such as inorganic non-metallic materials, stainless steel, polymethylacrylic acid such as including graphite
The high-molecular organic materials such as methyl esters.
Anode collection plate 2 and 6 material of negative pole currect collecting plate are the conductive material of the metals such as inorganic non-metallics or red copper such as graphite；
Anode electrode and cathode electrode are conductive metallic material or carbon material with porous structure；Exchange membrane 4 be cation-exchange membrane,
Anion-exchange membrane or neutral exchange membrane.
Wherein electrolyte is that the electrolyte with redox characteristic contains oxidation-reduction pair V4+/V5+、V2+/V3+、
Cr2+/Cr3+、Fe2+/Fe3+、Mn2+/Mn3+Inorganic electrolyte liquid, the organic electrolyte based on alloxazine, nitroxyl radicals or quinones,
Nano-fluid electrolyte containing lithium sulfide, lithium titanate, Li, Ni, Mn oxide or high molecular polymer.
Referring to Fig. 3-4, present invention advance theory analysis is as follows:
According to fluid flow equations Darcy-Brinkman update equation in porous media:
WhereinFor barometric gradient, μ is viscosity, and k is porous media permeability, and V is the superficial velocity of fluid, μmFor
Coefficient of virtual viscosity, wherein in the case where identical electrodes material, μ, k and μmIt is constant.
The pressure difference value Δ P imported and exported under a certain length in electrode can further be obtained:
Wherein l is the process of fluid.
In the identical situation of the conditions such as resistance, distance, each branch pressure is identical as gross pressure, as a result, can be with according to Fig. 3
Obtain the pressure difference of traditional " circulation type " flow path:
As a comparison, " circulation type " structure flow battery and flow battery of the present invention use same traffic, it may be assumed that
Q1=Q2
Wherein flow and length velocity relation are as follows:
Wherein, w is branch flow passage cross-sectional diameter.
Due to traditional structure and electrode of liquid flow cell branch flow passage cross-sectional diameter Relationship of the present invention are as follows:
w1=w2
Therefore the two fluid velocity relationship are as follows:
It can be obtained by Fig. 3-4, traditional structure and flow battery branch process relationship of the present invention are as follows:
Therefore, traditional structure and flow battery inlet outlet pressure differential relationship of the present invention are as follows:
Therefore flow field pressure difference is much smaller than traditional structure flow differential pressure in flow battery of the present invention, is guaranteeing that electrolyte is more equal
It is even while be assigned to electrode surface, there is smaller pump work.
Tree-shaped uniform flow field flow battery working method of the invention the following steps are included:
Step S100: electrolyte is evenly distributed into electrode:
The unreacted anode electrolyte of flow battery enters flow battery side of the positive electrode by anode electrolyte import 8, is pumping
Flow path 9 is distributed by anode electrolyte under the action of function and is evenly distributed to tree-shaped anode electrolyte supply branch 10, into anode
In electrode 3；Equally, the unreacted electrolyte liquid of flow battery enters flow battery cathode by electrolyte liquid import 14
Side distributes flow path 15 by electrolyte liquid under the action of pump work and is evenly distributed to tree-shaped electrolyte liquid supply branch 16,
Into in negative electrode 5；
Step S200: battery charging and discharging reaction:
By taking acid water system flow battery as an example, during the charging process, catholyte is aoxidized on 3 surface of anode electrode
Reaction, loses electronics and increases price, and the electronics lost is entered via anode electrode 3, anode collection plate 2 by external circuit negative
Pole side, electrolyte inner proton enters negative side by exchange membrane 4 under electric field action；Electronics passes through negative pole currect collecting by external circuit
Plate 6, negative electrode 5 reach 5 surface of negative electrode, and anolyte occurs reduction reaction in negative terminal surface and obtains electronics reduction valence
Position, is achieved in the primary charging reaction of battery；
During discharge, anolyte carries out oxidation reaction on 5 surface of negative electrode, loses electronics and increases valence
Position, the electronics lost enter side of the positive electrode by external circuit via negative electrode 5, negative pole currect collecting plate 6, are electrolysed under electric field action
Liquid inner proton enters side of the positive electrode by exchange membrane 4；Electronics reaches anode by anode collection plate 2, anode electrode 3 by external circuit
Reduction reaction occur for 3 surface of electrode, catholyte obtain electronics in positive electrode surface to reduce price, and it is primary to be achieved in battery
Exoelectrical reaction；
Step S300: the uniform short route outflow of electrolyte:
The electrolyte that anode electrolyte flows into after the reaction was completed, by each tree-shaped anode electrolyte supply branch 10 outlet from
Be closer array-like anode electrolyte discharge 11 entrance of branch outflow, guarantee homogeneous reaction while with minimum process stream
Out, further electrolyte by array-like anode electrolyte discharge branch 11 converge into anode electrolyte recycling flow path 12 pass through anode
Electrolyte outlet 13 is discharged；Meanwhile electrolyte liquid is after the reaction was completed, is exported by each tree-shaped electrolyte liquid supply branch 16
The electrolyte of inflow is from array-like electrolyte liquid discharge 17 entrance of the branch outflow being closer, while guaranteeing homogeneous reaction
It is flowed out with minimum process, further electrolyte converges into electrolyte liquid by array-like electrolyte liquid discharge branch 17 and recycles
Flow path 18 passes through 19 discharge of electrolyte liquid outlet.
The present invention compared with the existing technology, using a kind of tree-shaped longitudinal inflow flow field dispersed step by step of novel y-bend, guarantees
Electrolyte can uniformly enter electrode surface, improve the electrolyte extent of reaction, further promote battery efficiency；The present invention simultaneously
Flow field is longitudinally flowed out using the array distribution combined with inflow flow field, guarantees that electrolyte after completion of the reaction can be with shortest
Process flows out electrode, reduces the consumed pump work of battery.
Finally it should be noted that: the above examples are only used to illustrate the technical scheme of the present invention rather than its limitations, to the greatest extent
Pipe is described the invention in detail referring to above-described embodiment, it should be understood by those ordinary skilled in the art that: still may be used
With modifications or equivalent substitutions are made to specific embodiments of the invention, and repaired without departing from any of spirit and scope of the invention
Change or equivalent replacement, should all cover in present claims range.
Claims (9)
1. a kind of tree-shaped uniform flow field flow battery, it is characterised in that: including the positive flow field being arranged on flow battery ontology
Plate (1), anode collection plate (2), anode electrode (3), exchange membrane (4), negative electrode (5), negative pole currect collecting plate (6) and cathode flow field
Plate (7)；
Anode collection plate (2) is connected with positive flow-field plate (1) and anode electrode (3), and anode electrode (3) and negative electrode (5) are logical
It crosses exchange membrane (4) to separate, negative pole currect collecting plate (6) is connected with negative electrode (5) and cathode flow-field plate (7)；
Setting anode electrolyte import (8), anode electrolyte distribute flow path (9), tree-shaped anode electrolyte in positive flow-field plate (1)
Supply branch (10), array-like anode electrolyte discharge branch (11), anode electrolyte recycling flow path (12) and anode electrolyte
It exports (13)；Anode electrolyte import (8) is that anode electrolyte distributes flow path (9) import and flow battery outside is connected, tree-shaped
Anode electrolyte supplies branch (10) import and is connected with anode electrolyte distribution flow path (9), and tree-shaped anode electrolyte supplies branch
(10) outlet is connected by anode collection plate (2) with anode electrode (3), and it is logical that branch (11) import is discharged in array-like anode electrolyte
It crosses anode collection plate (2) to be connected with anode electrode (3), branch (11) outlet and anode electrolyte is discharged in array-like anode electrolyte
It recycles flow path (12) to be connected, anode electrolyte outlet (13) is that anode electrolyte recycles flow path (12) outlet and flow battery outside
It is connected；
Tree-shaped anode electrolyte supply branch (10) passes through the tree form dispersed step by step by anode electrolyte distribution flow path (9) exhibition
It opens, a plurality of array-like anode electrolyte discharge branch (11) is uniformly distributed to be connected to anode electrolyte recycling flow path (12)；Anode
Collector plate (2) is the plate with array distribution hole, duct and tree-shaped anode electrolyte supply branch (10) outlet in collector plate
And discharge branch (11) import of array-like anode electrolyte is connected；
Cathode flow-field plate (7) includes electrolyte liquid import (13), the distribution of electrolyte liquid flow path (14), tree-shaped electrolyte liquid
Supply branch (16), array-like electrolyte liquid discharge branch (17), electrolyte liquid recycling flow path (18) and electrolyte liquid
It exports (19)；Electrolyte liquid import (14) is that cathode electrolyte distributes flow path (15) import and flow battery outside is connected, and is set
Shape electrolyte liquid supplies branch (16) import and is connected with electrolyte liquid distribution flow path (15), tree-shaped electrolyte liquid supply branch
Road (16) outlet is connected by negative pole currect collecting plate (6) with negative electrode (5), and branch (17) import is discharged in array-like electrolyte liquid
It is connected by negative pole currect collecting plate (6) with negative electrode (5), branch (17) outlet and electrolyte is discharged in array-like electrolyte liquid
Liquid recycle flow path (18) be connected, electrolyte liquid export (19) be cathode electrolyte recycle flow path (18) outlet with flow battery outside
Side is connected；
Tree-shaped electrolyte liquid supply branch (16) passes through the tree form dispersed step by step and distributes flow path (15) by electrolyte liquid
Expansion, a plurality of array-like electrolyte liquid discharge branch (17) are evenly distributed on electrolyte liquid recycling flow path (18) connection；
Negative pole currect collecting plate (6) is the plate with array distribution hole, and duct and tree-shaped electrolyte liquid supply branch in collector plate
(16) outlet and discharge branch (17) import of array-like electrolyte liquid are connected.
2. tree-shaped uniform flow field flow battery as described in claim 1, it is characterised in that: tree-shaped anode electrolyte supplies branch
(10) and tree-shaped electrolyte liquid supply branch (16) is the tree-shaped dispersive flow field step by step of y-bend, i.e., tree-shaped electrolyte supply branch routing
1 electrolyte supply flow path is divided into 4 branches with 90 ° of rotation arrays, and 4 branches are divided into 16 branches, by " 1-4-16 " by
Grade dispersing mode distribution.
3. tree-shaped uniform flow field flow battery as claimed in claim 2, it is characterised in that: array-like anode electrolyte discharge branch
Branch (17) are discharged with " 3 × 3 " array distribution in electrode outside in road (11) and array-like electrolyte liquid.
4. tree-shaped uniform flow field flow battery as described in any one of claims 1-3, it is characterised in that: positive flow-field plate (1)
It is inorganic non-metallic material, metallic composite or high-molecular organic material with cathode flow-field plate (7) material therefor.
5. tree-shaped uniform flow field flow battery as described in any one of claims 1-3, it is characterised in that: anode collection plate (2)
It is the conductive material of inorganic non-metallic or metal with negative pole currect collecting plate (6) material；Anode electrode and cathode electrode are with porous
The conductive metallic material or carbon material of structure.
6. tree-shaped uniform flow field flow battery as described in any one of claims 1-3, it is characterised in that: exchange membrane (4) is sun
Amberplex, anion-exchange membrane or neutral exchange membrane.
7. tree-shaped uniform flow field flow battery as described in any one of claims 1-3, it is characterised in that: each tree-shaped anolyte
Liquid supply branch (10) outlet is equidistantly spaced setting with discharge branch (11) import of each array-like anode electrolyte.
8. tree-shaped uniform flow field flow battery as described in any one of claims 1-3, it is characterised in that: a plurality of tree-shaped negative electricity
Solution liquid supply branch (16) outlet is equidistantly spaced setting with discharge branch (17) import of a plurality of array-like electrolyte liquid.
9. the working method of tree-shaped uniform flow field flow battery as described in claim 1, it is characterised in that the following steps are included:
Step S100: electrolyte is evenly distributed into electrode:
Anode electrolyte enters flow battery side of the positive electrode by anode electrolyte import (8), passes through anode under the action of pump work
Electrolyte distribution flow path (9) is evenly distributed to tree-shaped anode electrolyte supply branch (10), into anode electrode (3)；Meanwhile
Electrolyte liquid enters flow battery negative side by electrolyte liquid import (14), passes through electrolyte under the action of pump work
Liquid distribution flow path (15) is evenly distributed to tree-shaped electrolyte liquid supply branch (16), into negative electrode (5)；
Step S200: battery charging and discharging reaction:
Electrolyte carries out discharge and recharge reaction in electrode surface；
Step S300: the uniform short route outflow of electrolyte:
The electrolyte that anode electrolyte flows into after the reaction was completed, by each tree-shaped anode electrolyte supply branch (10) outlet from away from
From discharge branch (11) the entrance outflow of closer array-like anode electrolyte, converges into anode electrolyte recycling flow path (12) and pass through
Anode electrolyte exports (13) discharge；Meanwhile electrolyte liquid is after the reaction was completed, supplies branch by each tree-shaped electrolyte liquid
(16) electrolyte that outlet flows into converges into negative from array-like electrolyte liquid discharge branch (17) the entrance outflow being closer
Pole electrolyte recycles flow path (18) and passes through electrolyte liquid outlet (19) discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053625.7A CN109888351B (en) | 2019-01-21 | 2019-01-21 | Tree-shaped uniform flow field flow battery and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053625.7A CN109888351B (en) | 2019-01-21 | 2019-01-21 | Tree-shaped uniform flow field flow battery and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109888351A true CN109888351A (en) | 2019-06-14 |
| CN109888351B CN109888351B (en) | 2021-03-12 |
Family
ID=66926357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910053625.7A Active CN109888351B (en) | 2019-01-21 | 2019-01-21 | Tree-shaped uniform flow field flow battery and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109888351B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824338A (en) * | 2022-04-01 | 2022-07-29 | 香港科技大学 | Flow battery runner with two-fork finger type structure on bipolar plate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271979A (en) * | 2007-03-23 | 2008-09-24 | 株式会社东芝 | Fuel cell system |
| WO2008116249A1 (en) * | 2007-03-28 | 2008-10-02 | Redflow Pty Ltd | Flowing electrolyte battery cell stack having an improved flow distribution zone |
| CN101459246A (en) * | 2008-12-18 | 2009-06-17 | 浙江工业大学 | Leaf vein shaped fuel cell flow field plate |
| CN101944618A (en) * | 2010-10-08 | 2011-01-12 | 武汉理工大学 | Tree-structured flow field proton exchange membrane fuel cell bipolar plate |
| CN102931427A (en) * | 2012-11-07 | 2013-02-13 | 北京好风光储能技术有限公司 | Lithium-ion flow battery reactor |
| CN106611861A (en) * | 2015-10-16 | 2017-05-03 | 中国科学院大连化学物理研究所 | Redox flow battery structure |
| US20180062188A1 (en) * | 2016-08-26 | 2018-03-01 | Oci Company Ltd. | Flow frame for redox flow battery |
| CN207611821U (en) * | 2016-12-22 | 2018-07-13 | 住友电气工业株式会社 | Battery frame, battery pile and redox flow batteries |
| CN108461661A (en) * | 2018-04-22 | 2018-08-28 | 赣州天目领航科技有限公司 | A kind of novel pile vanadium energy storage system |
-
2019
- 2019-01-21 CN CN201910053625.7A patent/CN109888351B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271979A (en) * | 2007-03-23 | 2008-09-24 | 株式会社东芝 | Fuel cell system |
| WO2008116249A1 (en) * | 2007-03-28 | 2008-10-02 | Redflow Pty Ltd | Flowing electrolyte battery cell stack having an improved flow distribution zone |
| CN101459246A (en) * | 2008-12-18 | 2009-06-17 | 浙江工业大学 | Leaf vein shaped fuel cell flow field plate |
| CN101944618A (en) * | 2010-10-08 | 2011-01-12 | 武汉理工大学 | Tree-structured flow field proton exchange membrane fuel cell bipolar plate |
| CN102931427A (en) * | 2012-11-07 | 2013-02-13 | 北京好风光储能技术有限公司 | Lithium-ion flow battery reactor |
| CN106611861A (en) * | 2015-10-16 | 2017-05-03 | 中国科学院大连化学物理研究所 | Redox flow battery structure |
| US20180062188A1 (en) * | 2016-08-26 | 2018-03-01 | Oci Company Ltd. | Flow frame for redox flow battery |
| CN207611821U (en) * | 2016-12-22 | 2018-07-13 | 住友电气工业株式会社 | Battery frame, battery pile and redox flow batteries |
| CN108461661A (en) * | 2018-04-22 | 2018-08-28 | 赣州天目领航科技有限公司 | A kind of novel pile vanadium energy storage system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824338A (en) * | 2022-04-01 | 2022-07-29 | 香港科技大学 | Flow battery runner with two-fork finger type structure on bipolar plate |
| CN114824338B (en) * | 2022-04-01 | 2023-12-22 | 香港科技大学 | Flow battery runner with two interdigital structures on bipolar plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109888351B (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103579658B (en) | A kind of liquid stream battery stack | |
| CN100578849C (en) | High power oxidation, reduction liquid energy-storage pile modular structure and its group mode | |
| CN201845830U (en) | Flow battery galvanic pile | |
| CN201549546U (en) | Columnar flow battery device | |
| Hsieh et al. | Measurement of local current density of all-vanadium redox flow batteries | |
| CN101614794A (en) | A kind of method for online detecting charge state of flow battery based on potential difference parameter | |
| CN107634241B (en) | Flow frame for flow battery | |
| CN102842730A (en) | All-vanadium flow battery | |
| CN102468499A (en) | Regeneration method for waste liquor of all-vanadium flow battery | |
| CN109037725B (en) | Flow battery capable of improving distribution uniformity of electrolyte, electrode structure and method | |
| CN102136594A (en) | Double-power liquid stream battery electric pile structure and liquid stream battery containing electric pile | |
| CN110048141A (en) | A kind of electrode of liquid flow cell sheet frame runner and flow battery runner | |
| CN100376055C (en) | Flow battery making electrolyte cross porous electrode | |
| CN105609796A (en) | Modification method of electrode material for all-vanadium redox flow battery | |
| CN201956424U (en) | Double power fluid redox cell stack structure | |
| CN107845823B (en) | Electrode frame structure of flow battery pile | |
| CN106532093A (en) | Quinone metal redox couple flow cell system | |
| CN103887539B (en) | A kind of Zn-Ni liquid battery structure and Zn-Ni liquid battery system | |
| CN202888323U (en) | Electric pile structure of flow battery having less possibility of leaking | |
| CN109888351A (en) | A kind of tree-shaped uniform flow field flow battery and its working method | |
| CN103579641B (en) | A kind of electric pile structure of flow battery | |
| CN108656993A (en) | It is a kind of distributed from cooling storing up electricity charging pile and its charging method | |
| Liu et al. | Effect of variable cross-section electrode on the battery performance of all-vanadium redox flow battery | |
| CN206349448U (en) | A kind of pile of redox flow batteries | |
| CN108630974A (en) | A kind of distributed heat balance storing up electricity charging unit and its charging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |