CN102780018B - Integration fluid reservoir and novel zinc-bromine flow battery - Google Patents
Integration fluid reservoir and novel zinc-bromine flow battery Download PDFInfo
- Publication number
- CN102780018B CN102780018B CN201210286862.6A CN201210286862A CN102780018B CN 102780018 B CN102780018 B CN 102780018B CN 201210286862 A CN201210286862 A CN 201210286862A CN 102780018 B CN102780018 B CN 102780018B
- Authority
- CN
- China
- Prior art keywords
- tank body
- return duct
- fluid reservoir
- feed pump
- bromine
- 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.)
- Active
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
Landscapes
- Hybrid Cells (AREA)
Abstract
The invention discloses a kind of structure of integrated fluid reservoir, manufacture method and novel zinc-bromine flow battery, described novel zinc-bromine flow battery comprises fluid reservoir 1, solution feed pump A2, solution feed pump B3, positive pole pipe-line system 41, negative pole pipe-line system 42, pile 5, positive pole return duct 71, negative pole return duct 72, fluid reservoir 1 respectively with solution feed pump A2, solution feed pump B3, positive pole return duct 71 is connected with negative pole return duct 72, pile 5 respectively with positive pole pipe-line system 41, negative pole pipe-line system 42, positive pole return duct 71 is connected with negative pole return duct 72, solution feed pump B3 is connected with positive pole pipe-line system 41, solution feed pump A2 is connected with positive pole pipe-line system 41 and negative pole pipe-line system 42 respectively.Both positive and negative polarity of the present invention is got back in identical fluid reservoir 1, fundamentally solves the problem of migration; System is simple, failure rate is low; Use identical solution feed pump feed flow, balance the pressure of both positive and negative polarity pipe-line system both sides, reduce the deformation rate of material.
Description
Technical field
The present invention relates to a kind of integrated fluid reservoir and novel zinc-bromine flow battery, belong to flow battery field.
Background technology
Along with the continuous deterioration of global environment and people are to the attention of environmental problem, the eco-friendly clean energy resource of development of new is extremely urgent, redox flow batteries (Redox flow battery) is a kind of energy-storage system of rising in recent years, it has the performance of common batteries and fuel cell concurrently, have working life and storage life long, the advantages such as fast charging and discharging, depth of discharge performance are good, airtight circulating system avoids and extraneous contact simultaneously, avoid the pollution to environment, electrode material need not use valuable metallic catalyst etc.Therefore, realize scale high-efficiency energy-storage, accelerate economic development, develop redox flow batteries significant.
Zinc bromine redox flow batteries is the one of redox flow batteries, and electrolyte is the zinc bromide aqueous solution, and in charging process, zinc is deposited on electrode surface with metal form, and bromine forms oily complex compound, is stored in the bottom of anode electrolyte.Zinc-bromine flow battery theoretical open circuit voltage 1.82V, gross efficiency is 75%, theoretical energy density 430Wh/kg, battery can 100% deep discharge thousands of time, compared with lead-acid battery, there is higher energy density and power density and superior cycle charge discharge electrical property.Zinc-bromine bettery works under near ambient temperature, do not need complicated thermal control system, and the cost of raw material is cheap, makes it become one of selection of extensive energy-storage battery.
Zinc-bromine flow battery also also exists some technical problems, and as battery uses micro-pore septum, in cell operation, electrolyte moves, and causes both positive and negative polarity electrolyte not mate, affects battery performance.When migration amount is larger, high-order side electrolyte liquid level rises to fluid reservoir mouth place, because pressure may cause seal failure, electrolyte is revealed; Low level side, because of the suction Cheng Zengjia of solution feed pump, may cause pump transship and damage.Therefore, electrolyte migration problem also has serious impact to battery life.
The reason causing electrolyte to move is a lot, typically, and as:
1, the pressure reduction in both positive and negative polarity pipeline;
2, the migration that in barrier film, both sides concentration difference is brought;
3, the migration that water yield difference causes is carried during ionic transfer.
Traditional way is by both sides pump frequency modulation, changes both sides liquid supply pressure, thus reaches the object regulating liquid level.But there is following shortcoming in the method:
1. system complex, failure rate is high;
2. people's for a change pump pressure in adjustment process, has certain influence to battery performance;
3. electrolyte is regulated by the artificial both positive and negative polarity pressure reduction that manufactures, and can increase material deformation rate;
4. limit by operating mode when regulating, likely cannot realize;
5., for manufacturing pressure reduction, needing extra energy, system effectiveness is reduced.
Summary of the invention
The object of the invention is to, there is provided a kind of structure of integrated fluid reservoir, manufacture method and novel zinc-bromine flow battery, it effectively can solve problems of the prior art, particularly electrolyte migration, cause both positive and negative polarity electrolyte to mate uneven, affect the performance of battery and the problem in life-span.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of integrated fluid reservoir, comprise: tank body, confession bromine pipeline, total return duct and feed pipe, for bromine pipeline one end through tank body sidewall and be positioned at tank body, one end of total return duct and feed pipe through tank body top and be positioned at the top of tank base.
In aforesaid integrated fluid reservoir, be also provided with deflection plate and base plate in described tank body, one end of base plate is connected with the close side for bromine pipeline, tank body bottom surface and the angle of base plate and tank body bottom surface is 5 ° ~ 10 °; Deflection plate is located between base plate and feed pipe, and one end of total return duct is through deflection plate and be positioned at the top of base plate, and the angle of deflection plate and horizontal plane is 0 ° ~ 30 °, and the nearer one end of deflection plate distance horizontal plane is provided with spout hole; When the angle of deflection plate and horizontal plane is 0 °, spout hole is located at any one end of deflection plate, thus effectively can prevent the self-discharge phenomenon that both positive and negative polarity electrolyte produces in integrated fluid reservoir, improve the performance and used life of the flow battery that this integrated fluid reservoir of application is made into.
In above-mentioned integrated fluid reservoir, deflection plate and the angle between base plate and tank base larger, more obvious to the high density phase reflowing result be sorted, but the velocity component of corresponding vertical direction is also larger, also can have a certain impact to tank volume and weight.Deflection plate plays a part to increase electrolyte flow path in fluid reservoir, the high density gone out is had mutually to the effect of backflow guiding by gravity separation simultaneously.
Described spout hole, can compensate upper strata electrolyte, namely supernatant liquor is pumped, and after electrode surface generation chemical reaction, is back near bottom fluid reservoir by total return duct, and cause pressure near bottom to raise, electrolyte is moved to upper stream by lower floor.
In aforesaid integrated fluid reservoir, described deflection plate and the angle of horizontal plane are 5 °, the angle of base plate and tank body bottom surface is 5 °, thus makes the resultant effect of the velocity component of the reflowing result of the high density phase be sorted, vertical direction, tank volume and weight best.
In aforesaid integrated fluid reservoir, the quantity of described deflection plate is at least one deck, and when the quantity of deflection plate is greater than one deck, the two-layer deflection plate of arbitrary neighborhood surrounds a ladder cavity, thus can improve the effect of bromine sorting further.
In aforesaid integrated fluid reservoir, the narrow end of ladder cavity is located near the side for bromine pipeline on tank body, thus makes the flow path of electrolyte the longest, best to the separating effect of bromine simple substance, complexing bromine and electrolyte clear liquid.
In aforesaid integrated fluid reservoir, described spout hole both sides are also provided with magnetic material, utilize magnetic field to produce positive coopertive effect, can assisted Extraction height separating effect and not extra consumption.
Described magnetic material is general permanent magnet, and as magnet, its magnetic field intensity is less than or equal to 1T; If when the magnetic field intensity of magnetic material is greater than 1T, then magnetic field is as auxiliary separating structure, separating effect not only can not be made to improve, also add cost and weight on the contrary; In addition, if the magnetic field intensity of magnetic material is greater than 1T, magnetic field intensity is excessive, may impact the electronic component (as transducer) outside tank and equipment (as pump).
Preferably, the magnetic field intensity of magnetic material is less than or equal to 3000 Gausses.
Described magnetic material by plastic wraps, thus prevents magnetic material to be corroded.
Described spout hole accounts for 50% of deflection plate width, if spout hole is too small, then liquid is by bringing larger change in flow during spout hole, thus affects separating effect, but also may increase energy ezpenditure; If spout hole is excessive, then the auxiliary separating effect of magnetic material can decline.
In aforesaid integrated fluid reservoir, described total return duct is located at the side that distance on tank body supplies bromine pipeline nearer, owing to being positioned at the least significant end of tank wall for bromine pipeline, belong to bromine enrichment region, in charging process, the bromine that positive pole produces can directly be back to this region with total return duct, reduces the convection current with electrolyte, improves separating effect; During electric discharge, when total backflow liquid in pipe is discharged from pipeline, itself there is certain flow velocity, this flow velocity can make " the pure bromine " of bromine enrichment region that disturbance occurs, by extracting bromine mixed solution for bromine pipeline, contributing to bromine and disperseing in electrode solution, reduce the pressure for bromine pipeline simultaneously, reduce pump consumption, improve battery life; In addition, in discharge process unreacted completely bromine get back to bromine enrichment region with shortest path, reduce convection current, further increase separating effect.
A manufacture method for integrated fluid reservoir, adopt the methods such as sheet material sweat soldering, blowing or rotational moulding to be made, the technological parameter be wherein specifically related to is determined according to sheet material.
Utilize the novel zinc-bromine flow battery that aforesaid integrated fluid reservoir is made into, comprise fluid reservoir, solution feed pump A, solution feed pump B, positive pole pipe-line system, negative pole pipe-line system, pile, positive pole return duct and negative pole return duct, fluid reservoir is connected with solution feed pump A, solution feed pump B, positive pole return duct and negative pole return duct respectively, pile is connected with positive pole pipe-line system, negative pole pipe-line system, positive pole return duct and negative pole return duct respectively, solution feed pump B is connected with positive pole pipe-line system, and solution feed pump A is connected with positive pole pipe-line system and negative pole pipe-line system respectively.
In aforesaid novel zinc-bromine flow battery, in described fluid reservoir, supply one end of bromine pipeline through the sidewall of tank body and be positioned at tank body, the other end is connected with solution feed pump B, one end of total return duct through tank body top and be located at the top of tank base, the other end is connected with positive pole return duct and negative pole return duct respectively, one end of feed pipe through tank body top and be located at the top of tank base, the other end is connected with solution feed pump A, solution feed pump B quits work when charging, start when discharging, reduce system energy consumption and self discharge amount, thus improve the operating efficiency of zinc-bromine flow battery, reacted both positive and negative polarity electrolyte can flow and be back to integrated fluid reservoir after total return duct, fundamentally solves the problem of electrolyte migration, electrolyte pumps from same pump (solution feed pump A), branches to both positive and negative polarity, because the loine pressure shunting side is identical, thus reduces both positive and negative polarity total pressure head.
In aforesaid novel zinc-bromine flow battery, also comprise: heat-exchange system, described heat-exchange system comprises: heat exchanger and cooler, cooler is connected with heat exchanger, heat exchanger is connected with positive pole return duct, negative pole return duct or fluid reservoir, after heat exchanger absorbs heat, release at cooler, thus effectively can reduce the temperature of electrolyte.
In aforesaid novel zinc-bromine flow battery, described cooler is connected with heat exchanger, and heat exchanger is connected with fluid reservoir, thus makes to reach best to the cooling-down effect of electrolyte.
Compared with prior art, the present invention has the following advantages:
1. devise integrated fluid reservoir, both positive and negative polarity electrolyte is got back in identical storage tank, then is pumped out, fundamentally solve the problem of electrolyte migration;
2. by the spout hole on design deflection plate, base plate and deflection plate, thus can utilize that gravity separation makes bromine simple substance, complexing bromine is separated with electrolyte clear liquid, in addition, it is at least one deck by baffle design, when being greater than one deck, the two-layer deflection plate of arbitrary neighborhood surrounds a ladder cavity and arranges magnetic material in the both sides of spout hole, offset or cut down the velocity component of (contrary with gravity direction) straight up, fluid is slowly flowed along the region of deflection plate, thus can Br be increased
3 -residence time, further enhancing the effect of gravity separation; Not only without the need to extra power consumption in whole assorting room, but also effectively can prevent the self-discharge phenomenon that both positive and negative polarity electrolyte produces in integrated fluid reservoir, improve the performance and used life of the flow battery that this integrated fluid reservoir of application is made into;
3., without the need to management such as electrolyte coupling, both positive and negative polarity pressure match, thus simplify system, reduce the failure rate of system;
4. compared with traditional fluid reservoir, the liquid storage tank structure designed by the present invention is simple, size is little, lightweight, effectively can reduce the danger of electrolyte leakage, improve the energy density of system simultaneously; In addition, traditional fluid reservoir is two jar structures, and the integrated fluid reservoir in the present invention is single tank, and the material of use is less, and space availability ratio is higher, simultaneously the area also corresponding minimizing of sealing area;
5. use same solution feed pump (solution feed pump A) to both positive and negative polarity feed flow, to balance pressure at both sides, reduce the deformation probability of material, improve the life-span of zinc-bromine flow battery simultaneously;
6. solution feed pump B quits work when battery charges, and starts during battery discharge, reduces system energy consumption and the self discharge amount of zinc-bromine flow battery, improves the energy efficiency of zinc-bromine flow battery;
7. after the bromo-complex of tank base is pumped into positive pole pipe-line system by solution feed pump B, the electrolyte clear liquid on bromo-complex and upper strata mixes due to the effect of flow rate of liquid naturally in pipe-line system inside, then pile is entered, compared with conventional art, present invention saves the equipment playing mixed function added in solution feed pump B rear end, as blender etc., thus simplify the structure of battery system, save cost;
8. the cooler of heat-exchange system is connected with heat exchanger, heat exchanger is connected with fluid reservoir, because the electrolyte in storage tank is in stable condition, substantially not by flow effect, and the total thermal capacitance of storage tank electrolyte inside is larger, variations in temperature is slow, easy control, in addition, by changing cooling fluid temperature and flow velocity in heat exchanger, change system heat exchange amount, most high energy efficiency point is reached according to heat transfer requirements, and do not affect the stable performance of battery system, therefore, the heat exchange cooling-down effect that heat exchanger and storage tank are directly connected generation is best.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel zinc-bromine flow battery;
Fig. 2 is the structural representation of integrated fluid reservoir;
Fig. 3 is the profile of integrated fluid reservoir;
Fig. 4 is the vertical view of deflection plate;
Fig. 5 is the position view of magnetic material;
Fig. 6 is 25 DEG C, record Br in the electrolyte of 2.5M
3 -concentration schematic diagram.
Reference numeral: 1-fluid reservoir, 2-solution feed pump A, 3-solution feed pump B, 41-positive pole pipe-line system, 42-negative pole pipe-line system, 4-feed pipe, 5-pile, 61-heat exchanger, 62-cooler, 71-positive pole return duct, 72-negative pole return duct, the total return duct of 7-, 8-supplies bromine pipeline, 9-spout hole, 10-tank body, 11-deflection plate, 12-base plate.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment
Embodiment 1: a kind of integrated fluid reservoir, as shown in Figure 2, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.
Embodiment 2: a kind of integrated fluid reservoir, as shown in Figure 2, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Deflection plate 11 and base plate 12(is also provided with as shown in Figure 3 in described tank body 10), one end of base plate 12 and tank body 10 bottom surface are connected near the side for bromine pipeline 8 and the angle of base plate 12 and tank body 10 bottom surface is 5 °; Deflection plate 11 is located between base plate 12 and feed pipe 4, one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, deflection plate 11 is 5 ° with the angle of horizontal plane, and deflection plate 11 one end nearer apart from horizontal plane is provided with spout hole 9(as shown in Figure 4).
Embodiment 3: a kind of integrated fluid reservoir, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Also be provided with deflection plate 11 and base plate 12 in described tank body 10, one end of base plate 12 is connected with the close side for bromine pipeline 8, tank body 10 bottom surface and base plate 12 is 5 ° with the angle of tank body 10 bottom surface; Deflection plate 11 is located between base plate 12 and feed pipe 4, and one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, and deflection plate 11 is 5 ° with the angle of horizontal plane, and deflection plate 11 one end nearer apart from horizontal plane is provided with spout hole 9.Described spout hole 9 both sides are also provided with magnetic material (as shown in Figure 5).
Embodiment 4: a kind of integrated fluid reservoir, as shown in Figure 2, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Deflection plate 11 and base plate 12(is also provided with as shown in Figure 3 in described tank body 10), one end of base plate 12 and tank body 10 bottom surface are connected near the side for bromine pipeline 8 and the angle of base plate 12 and tank body 10 bottom surface is 10 °; Deflection plate 11 is located between base plate 12 and feed pipe 4, one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, deflection plate 11 is 30 ° with the angle of horizontal plane, and deflection plate 11 one end nearer apart from horizontal plane is provided with spout hole 9(as shown in Figure 4).The quantity of described deflection plate 11 is greater than one deck, and the two-layer deflection plate 11 of arbitrary neighborhood surrounds a ladder cavity.
Embodiment 5: a kind of integrated fluid reservoir, as shown in Figure 2, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Described total return duct 7 is located at the side that distance on tank body 10 supplies bromine pipeline 8 nearer.
Embodiment 6: a kind of integrated fluid reservoir, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Also be provided with deflection plate 11 and base plate 12 in described tank body 10, one end of base plate 12 is connected with the close side for bromine pipeline 8, tank body 10 bottom surface and base plate 12 is 5 ° with the angle of tank body 10 bottom surface; Deflection plate 11 is located between base plate 12 and feed pipe 4, and one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, and deflection plate 11 is 0 ° with the angle of horizontal plane, and any one end of deflection plate 11 is provided with spout hole 9.Described total return duct 7 is located at the side that distance on tank body 10 supplies bromine pipeline 8 nearer.
Embodiment 7: a kind of integrated fluid reservoir, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Also be provided with deflection plate 11 and base plate 12 in described tank body 10, one end of base plate 12 is connected with the close side for bromine pipeline 8, tank body 10 bottom surface and base plate 12 is 5 ° with the angle of tank body 10 bottom surface; Deflection plate 11 is located between base plate 12 and feed pipe 4, and one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, and deflection plate 11 is 5 ° with the angle of horizontal plane, and deflection plate 11 one end nearer apart from horizontal plane is provided with spout hole 9.The quantity of described deflection plate 11 is one deck.
Embodiment 8: utilize the novel zinc-bromine flow battery that the arbitrary described integrated fluid reservoir of embodiment 1 ~ 6 is made into, as shown in Figure 1, comprise fluid reservoir 1, solution feed pump A2, solution feed pump B3, positive pole pipe-line system 41, negative pole pipe-line system 42, pile 5, positive pole return duct 71 and negative pole return duct 72, fluid reservoir 1 respectively with solution feed pump A2, solution feed pump B3, positive pole return duct 71 is connected with negative pole return duct 72, pile 5 respectively with positive pole pipe-line system 41, negative pole pipe-line system 42, positive pole return duct 71 is connected with negative pole return duct 72, solution feed pump B3 is connected with positive pole pipe-line system 41, solution feed pump A2 is connected with positive pole pipe-line system 41 and negative pole pipe-line system 42 respectively.
Embodiment 9: utilize the novel zinc-bromine flow battery that the arbitrary described integrated fluid reservoir of embodiment 1 ~ 6 is made into, as shown in Figure 1, comprise fluid reservoir 1, solution feed pump A2, solution feed pump B3, positive pole pipe-line system 41, negative pole pipe-line system 42, pile 5, positive pole return duct 71 and negative pole return duct 72, fluid reservoir 1 respectively with solution feed pump A2, solution feed pump B3, positive pole return duct 71 is connected with negative pole return duct 72, pile 5 respectively with positive pole pipe-line system 41, negative pole pipe-line system 42, positive pole return duct 71 is connected with negative pole return duct 72, solution feed pump B3 is connected with positive pole pipe-line system 41, solution feed pump A2 is connected with positive pole pipe-line system 41 and negative pole pipe-line system 42 respectively.In described fluid reservoir 1, supply one end of bromine pipeline 8 through the sidewall of tank body 10 and be positioned at tank body 10, the other end is connected with solution feed pump B3, one end of total return duct 7 is through the top of tank body 10 and the top be located at bottom tank body 10, the other end is connected with positive pole return duct 71 and negative pole return duct 72 respectively, one end of feed pipe 4 is through the top of tank body 10 and the top be located at bottom tank body 10, and the other end is connected with solution feed pump A2.
Embodiment 10: utilize the novel zinc-bromine flow battery that the arbitrary described integrated fluid reservoir of embodiment 1 ~ 6 is made into, as shown in Figure 1, comprise fluid reservoir 1, solution feed pump A2, solution feed pump B3, positive pole pipe-line system 41, negative pole pipe-line system 42, pile 5, positive pole return duct 71 and negative pole return duct 72, fluid reservoir 1 respectively with solution feed pump A2, solution feed pump B3, positive pole return duct 71 is connected with negative pole return duct 72, pile 5 respectively with positive pole pipe-line system 41, negative pole pipe-line system 42, positive pole return duct 71 is connected with negative pole return duct 72, solution feed pump B3 is connected with positive pole pipe-line system 41, solution feed pump A2 is connected with positive pole pipe-line system 41 and negative pole pipe-line system 42 respectively.In described fluid reservoir 1, supply one end of bromine pipeline 8 through the sidewall of tank body 10 and be positioned at tank body 10, the other end is connected with solution feed pump B3, one end of total return duct 7 is through the top of tank body 10 and the top be located at bottom tank body 10, the other end is connected with positive pole return duct 71 and negative pole return duct 72 respectively, one end of feed pipe 4 is through the top of tank body 10 and the top be located at bottom tank body 10, and the other end is connected with solution feed pump A2.Also comprise: heat-exchange system, described heat-exchange system comprises: heat exchanger 61 and cooler 62, and cooler 62 is connected with heat exchanger 61, and heat exchanger 61 is connected with positive pole return duct 71.
Embodiment 11: a kind of integrated fluid reservoir, as shown in Figure 2, comprise: tank body 10, confession bromine pipeline 8, total return duct 7 and feed pipe 4, for bromine pipeline 8 one end through tank body 10 sidewall and be positioned at tank body 10, one end of total return duct 7 and feed pipe 4 is through the top of tank body 10 and the top be positioned at bottom tank body 10.Deflection plate 11 and base plate 12(is also provided with as shown in Figure 3 in described tank body 10), one end of base plate 12 and tank body 10 bottom surface are connected near the side for bromine pipeline 8 and the angle of base plate 12 and tank body 10 bottom surface is 5 °; Deflection plate 11 is located between base plate 12 and feed pipe 4, one end of total return duct 7 is through deflection plate 11 and be positioned at the top of base plate 12, deflection plate 11 is 5 ° with the angle of horizontal plane, and deflection plate 11 one end nearer apart from horizontal plane is provided with spout hole 9(as shown in Figure 4).The quantity of described deflection plate 11 is two-layer, and two-layer deflection plate 11 surrounds a ladder cavity.Described spout hole 9 both sides are also provided with magnetic material (as shown in Figure 5).Described total return duct 7 is located at the side that distance on tank body 10 supplies bromine pipeline 8 nearer.
Utilize the novel zinc-bromine flow battery that above-mentioned integrated fluid reservoir is made into, as shown in Figure 1, comprise fluid reservoir 1, solution feed pump A2, solution feed pump B3, positive pole pipe-line system 41, negative pole pipe-line system 42, pile 5, positive pole return duct 71 and negative pole return duct 72, fluid reservoir 1 respectively with solution feed pump A2, solution feed pump B3, positive pole return duct 71 is connected with negative pole return duct 72, pile 5 respectively with positive pole pipe-line system 41, negative pole pipe-line system 42, positive pole return duct 71 is connected with negative pole return duct 72, solution feed pump B3 is connected with positive pole pipe-line system 41, solution feed pump A2 is connected with positive pole pipe-line system 41 and negative pole pipe-line system 42 respectively.In described fluid reservoir 1, supply one end of bromine pipeline 8 through the sidewall of tank body 10 and be positioned at tank body 10, the other end is connected with solution feed pump B3, one end of total return duct 7 is through the top of tank body 10 and the top be located at bottom tank body 10, the other end is connected with positive pole return duct 71 and negative pole return duct 72 respectively, one end of feed pipe 4 is through the top of tank body 10 and the top be located at bottom tank body 10, and the other end is connected with solution feed pump A2.Also comprise: heat-exchange system, described heat-exchange system comprises: heat exchanger 61 and cooler 62, and cooler 62 is connected with heat exchanger 61, and heat exchanger 61 is connected with fluid reservoir 1.
In above-described embodiment 10 and embodiment 11, described heat-exchange system comprises: heat exchanger 61 and cooler 62, and cooler 62 is connected with heat exchanger 61, and heat exchanger 61 can also be connected with negative pole return duct 72.
The operation principle of a kind of embodiment of the present invention: zinc-bromine flow battery operationally, the reaction that both positive and negative polarity occurs at electrode surface respectively:
Positive pole: Br
2+ 2e
-→ 2Br
-
Negative pole: Zn-2e
-→ Zn
2+
Overall reaction: Zn+Br
2→ Zn
2++ 2Br
-
In operation process, should ensure in the electrolyte extracted out by feed pipe 4, Br
2concentration minimum.What affect bromine concentration has three factors:
1, electrolyte clear liquid middle Br is mutually dissolved in
2;
2, due to flowing be suspended in electrolyte clear liquid mutually in bromo-complex
3、Br
3 -。
In system, there is reaction:
This reaction
therefore can spontaneously carry out at normal temperatures.
Due to Br
2solubility in water is less, and bromo-complex with mutually immiscible with clear liquid, and has larger density contrast mutually with clear liquid, therefore limited on the impact of self discharge.Br
3 -being be present in the middle of electrolyte with the form of ion, having good dissolubility, therefore, is one of major reason causing zinc-bromine flow battery self discharge.As shown in Figure 6, with battery charge state change, Br
3 -ion concentration as shown in the graph, 2.5M ZnBr at 25 DEG C
2in electrolyte, in battery charge and discharge process, Br
3 -ion concentration can reach 1.4mol/L, the Br of high concentration
3 -ion enters negative pole, will cause corrosion by anticathode surface zinc sedimentary deposit, thus cause more serious self discharge.
Figure 1 shows that the structural representation of zinc-bromine flow battery in this programme, its operation principle is, electrolyte is pumped from liquid storage pipe 1 by solution feed pump A2, shunting enters anode electrolyte pipe-line system 41 and electrolyte liquid pipeline system 42, then enter the both positive and negative polarity of pile 5 respectively, after there is electrochemical reaction, flow out from positive pole return duct 71 and negative pole return duct 72 respectively, gather to total return duct 7, return fluid reservoir 5.Have heat-exchange system in system, comprise institute's mark in heat exchanger 61 and cooler 62, Fig. 1 and be set to the heat exchange of electrolyte liquid, same, heat-exchange system can be arranged on positive pole pipe-line system 71 place, or directly to fluid reservoir 1 heat exchange.Fig. 1 institute marking structure is the typical flow battery structure of the present invention, and all the sensors and control section do not mark.
Fig. 2, Fig. 3 are the structural representation of fluid reservoir 1, comprise tank body 10, for bromine pipeline 8, total return duct 7 and feed pipe 4, be also provided with deflection plate 11 and base plate 12 in tank body 10, one end nearer bottom the distance tank body 10 of deflection plate 11 is also provided with spout hole 9.Electrolyte in the operation principle of liquid storage pipe 1 inside is: electrolyte is extracted out from feed pipe 4, enters solution feed pump A2, after completing circulation, gets back to fluid reservoir 1 by total return duct 7.Bromo-complex in pipeline, due to the density of self, is settled down near base plate 12, and is back to near bromine pipeline 8 entrance along base plate 12 clinoplain.In other electrolyte, clear liquid phase (containing a small amount of bromo-complex) is compensated by spout hole 9 pairs of upper strata electrolyte.In flow process, the bromo-complex that is not sorted of part continue from clear liquid mutually separation, and be back to the orlop of fluid reservoir 1 along the inclined-plane of deflection plate 11.Be now bromo-complex enrichment region near confession bromine pipeline 8.During charging, attonity; During electric discharge, bromo-complex, due to the effect of solution feed pump B3, is drawn out of from for bromine pipeline 8, enters anode electrolyte pipe-line system 41.
At overfall 9 place, be provided with magnetic material, described magnetic material is general permanent magnet, as magnet, its magnetic field intensity is less than or equal to 1T, as shown in Figure 5, for convenience of statement, as shown in Figure 2, the horizontal long side direction of definition fluid reservoir is X-direction, and height is Y-direction, and horizontal short direction is Z-direction.At spout hole 9 place, N represents magnetic field north, and S represents the South Pole, magnetic field, and magnetic line of force direction is Z-direction.
When under the effect of charged ion in electrolyte flow, when moving by spout hole 9 with speed v, under the effect of magnetic field B, be subject to the active force that size is F.For convenience of setting forth, definition speed v has corresponding velocity component v
x, v
y, v
z, the corresponding F of corresponding existence
x, F
y, F
z, direction and v
x, v
y, v
zvertically.Definition magnetic field is in X-Z plane, and for simplifying problem, suppose that this magnetic field is uniform magnetic field, magnetic field intensity is B, along Z axis just (or negative) direction.Then have:
F
X＝qv
xB
F
Y＝qv
YB
F
Z＝0
Ion is stressed in magnetic field, and the direction of motion of its original ion changes, thus improves Br
3 -the ion residence time at the volley, improve the effect of gravity separation.
Claims (11)
1. an integrated fluid reservoir, it is characterized in that, comprise: tank body (10), confession bromine pipeline (8), total return duct (7) and feed pipe (4), for bromine pipeline (8) one end through tank body (10) sidewall and be positioned at tank body (10), one end of total return duct (7) and feed pipe (4) is through the top of tank body (10) and the top be positioned at bottom tank body (10).
2. integrated fluid reservoir according to claim 1, it is characterized in that, also be provided with deflection plate (11) and base plate (12) in described tank body (10), one end of base plate (12) is connected with the close side for bromine pipeline (8), tank body (10) bottom surface and base plate (12) is 5 ° ~ 10 ° with the angle of tank body (10) bottom surface; Deflection plate (11) is located between base plate (12) and feed pipe (4), one end of total return duct (7) is through deflection plate (11) and be positioned at the top of base plate (12), the angle of deflection plate (11) and horizontal plane is 0 ° ~ 30 °, and the nearer one end of deflection plate (11) distance horizontal plane is provided with spout hole (9).
3. integrated fluid reservoir according to claim 2, is characterized in that, described deflection plate (11) is 5 ° with the angle of horizontal plane, and base plate (12) is 5 ° with the angle of tank body (10) bottom surface.
4. the integrated fluid reservoir according to Claims 2 or 3, is characterized in that, the quantity of described deflection plate (11) is at least one deck, and when the quantity of deflection plate (11) is greater than one deck, the two-layer deflection plate (11) of arbitrary neighborhood surrounds a ladder cavity.
5. the integrated fluid reservoir according to Claims 2 or 3, is characterized in that, described spout hole (9) both sides are also provided with magnetic material.
6. the integrated fluid reservoir according to claim 1,2 or 3, is characterized in that, described total return duct (7) is located at the side that the upper distance of tank body (10) supplies bromine pipeline (8) nearer.
7. integrated fluid reservoir according to claim 5, is characterized in that, described total return duct (7) is located at the side that the upper distance of tank body (10) supplies bromine pipeline (8) nearer.
8. utilize the novel zinc-bromine flow battery that the arbitrary described integrated fluid reservoir of claim 1 ~ 7 is made into, it is characterized in that, comprise fluid reservoir (1), solution feed pump A(2), solution feed pump B(3), positive pole pipe-line system (41), negative pole pipe-line system (42), pile (5), positive pole return duct (71) and negative pole return duct (72), fluid reservoir (1) respectively with solution feed pump A(2), solution feed pump B(3), positive pole return duct (71) is connected with negative pole return duct (72), pile (5) respectively with positive pole pipe-line system (41), negative pole pipe-line system (42), positive pole return duct (71) is connected with negative pole return duct (72), solution feed pump B(3) be connected with positive pole pipe-line system (41), solution feed pump A(2) be connected with positive pole pipe-line system (41) and negative pole pipe-line system (42) respectively.
9. novel zinc-bromine flow battery according to claim 8, it is characterized in that, in described fluid reservoir (1), supply one end of bromine pipeline (8) through the sidewall of tank body (10) and be positioned at tank body (10), the other end and solution feed pump B(3) be connected, one end of total return duct (7) through tank body (10) top and be located at the top of tank body (10) bottom, the other end is connected with positive pole return duct (71) and negative pole return duct (72) respectively, one end of feed pipe (4) through tank body (10) top and be located at the top of tank body (10) bottom, the other end and solution feed pump A(2) be connected.
10. novel zinc-bromine flow battery according to claim 8 or claim 9, it is characterized in that, also comprise: heat-exchange system, described heat-exchange system comprises: heat exchanger (61) and cooler (62), cooler (62) is connected with heat exchanger (61), and heat exchanger (61) is connected with positive pole return duct (71), negative pole return duct (72) or fluid reservoir (1).
11. novel zinc-bromine flow battery according to claim 10, is characterized in that, described cooler (62) is connected with heat exchanger (61), and heat exchanger (61) is connected with fluid reservoir (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286862.6A CN102780018B (en) | 2012-08-13 | 2012-08-13 | Integration fluid reservoir and novel zinc-bromine flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286862.6A CN102780018B (en) | 2012-08-13 | 2012-08-13 | Integration fluid reservoir and novel zinc-bromine flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102780018A CN102780018A (en) | 2012-11-14 |
| CN102780018B true CN102780018B (en) | 2015-07-29 |
Family
ID=47124851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286862.6A Active CN102780018B (en) | 2012-08-13 | 2012-08-13 | Integration fluid reservoir and novel zinc-bromine flow battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102780018B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014225947B2 (en) * | 2013-03-08 | 2017-10-19 | Primus Power Corporation | Reservoir for multiphase electrolyte flow control |
| CN105680082A (en) * | 2014-11-17 | 2016-06-15 | 中国科学院大连化学物理研究所 | Long-lifetime zinc-bromine flow battery structure and electrolyte |
| CN105702996B (en) * | 2016-03-26 | 2018-03-09 | 江西理工大学 | A kind of flow battery positive pole bromo il electrolyte and preparation method thereof |
| CN107845826B (en) * | 2016-09-21 | 2023-08-11 | 中国科学院大连化学物理研究所 | Zinc bromine single flow battery |
| CN107887566B (en) * | 2016-09-30 | 2020-08-04 | 北京好风光储能技术有限公司 | Drive control method of lithium ion flow battery system |
| CN106910918A (en) * | 2017-03-31 | 2017-06-30 | 湖南省德沃普储能有限公司 | Flow battery energy storage mixes liquid system and its control method |
| CN109860658B (en) * | 2017-11-28 | 2022-02-22 | 中国科学院大连化学物理研究所 | Method for recovering performance of zinc-bromine single flow battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256368A (en) * | 1998-12-08 | 2000-06-14 | 李勇前 | Liquid sucking and storing method and apparatus to utilize an engine to form negative pressure |
| CN102148388A (en) * | 2010-02-10 | 2011-08-10 | 大连融科储能技术发展有限公司 | Redox flow battery system |
| CN102544563A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院大连化学物理研究所 | Zinc-deposition type liquid flow energy-storage battery system and running way thereof |
| CN102593490A (en) * | 2012-03-06 | 2012-07-18 | 北京百能汇通科技股份有限公司 | Flow battery system and battery storage tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001216994A (en) * | 2000-02-02 | 2001-08-10 | Sumitomo Electric Ind Ltd | Electrolyte tank for redox flow battery |
-
2012
- 2012-08-13 CN CN201210286862.6A patent/CN102780018B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256368A (en) * | 1998-12-08 | 2000-06-14 | 李勇前 | Liquid sucking and storing method and apparatus to utilize an engine to form negative pressure |
| CN102148388A (en) * | 2010-02-10 | 2011-08-10 | 大连融科储能技术发展有限公司 | Redox flow battery system |
| CN102544563A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院大连化学物理研究所 | Zinc-deposition type liquid flow energy-storage battery system and running way thereof |
| CN102593490A (en) * | 2012-03-06 | 2012-07-18 | 北京百能汇通科技股份有限公司 | Flow battery system and battery storage tank |
Non-Patent Citations (1)
| Title |
|---|
| Stability of zinic/bromine battery electrolytes;P.M.Hoobin,et.al;《Journal of Applied electrochemistry》;19890225;第943-945页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102780018A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780018B (en) | Integration fluid reservoir and novel zinc-bromine flow battery | |
| CN102549834B (en) | Rechargeable metal-air cell with flow management system | |
| CN102593490B (en) | Flow battery system and battery storage tank | |
| CN102479968B (en) | Zinc / polyhalide energy storage cell | |
| KR101009440B1 (en) | Electrode for soluble lead acid redox flow battery and soluble lead acid redox flow battery using the same | |
| CN103296337B (en) | A metal-air battery | |
| CN101997129A (en) | Liquid flow battery | |
| CN202153549U (en) | Zinc-bromine flow battery and battery pack | |
| CN102035007A (en) | Water-soluble organic couple redox flow battery | |
| CN101853956A (en) | Lead-acid flow battery | |
| CN104716304A (en) | Zinc-nickel double-fluid flow battery | |
| CN101567459A (en) | Acid single flow cell | |
| CN102201590A (en) | Acidic zinc single liquid flow energy storage battery | |
| CN107221677A (en) | A kind of liquid metal cell of high-energy-density | |
| CN102723518A (en) | All-lead liquid flow battery | |
| CN104143646A (en) | Flow energy storage cell or pile running method | |
| WO2021139162A1 (en) | Application of quaternary ammonium salt type anthraquinone active substance, and organic aqueous phase salt cavern battery | |
| CN108808053B (en) | Zinc-nickel liquid flow energy storage battery | |
| CN108134141A (en) | A kind of no diaphragm static state zinc-bromine bettery | |
| CN105098292A (en) | Horizontal three-electrode electrochemical rechargeable zinc-air battery | |
| CN106532145A (en) | Liquid metal battery | |
| CN107464967A (en) | A kind of metal-air battery | |
| CN203589164U (en) | Lead-acid storage battery inner formation cooling water bath | |
| CN103904352B (en) | Zinc electrolyte for flow battery and preparation method thereof | |
| CN105914430A (en) | Zinc-air battery pack employing vertical circulation of electrolyte |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 501, Building 33, 109 Jinghai Third Road, Daxing District Economic and Technological Development Zone, Beijing, 100176 Patentee after: Beijing baineng Huitong Technology Co., Ltd. Address before: Room 5125, 5th floor, No. 10 Hongda North Road, Daxing Economic and Technological Development Zone, Beijing, 100176 Patentee before: Beijing Baineng Huitong Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220330 Address after: 210000 No. 109, zhuangpai Road, moling street, Jiangning District, Nanjing, Jiangsu Province (Jiangning Development Zone) Patentee after: Jiangsu HengAn Energy Storage Technology Co.,Ltd. Address before: Room 501, Building 33, 109 Jinghai Third Road, Daxing District Economic and Technological Development Zone, Beijing, 100176 Patentee before: Beijing baineng Huitong Technology Co.,Ltd. |