CN201845830U - Flow battery galvanic pile - Google Patents
Flow battery galvanic pile Download PDFInfo
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- CN201845830U CN201845830U CN2010206018716U CN201020601871U CN201845830U CN 201845830 U CN201845830 U CN 201845830U CN 2010206018716 U CN2010206018716 U CN 2010206018716U CN 201020601871 U CN201020601871 U CN 201020601871U CN 201845830 U CN201845830 U CN 201845830U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model belongs to the field of electrochemical engineering and industrial devices, in particular to a flow battery galvanic pile. An anode, a flow passage and a cathode form a battery monomer, the battery monomers are connected in the way that the anode is connected with the anode and the cathode is connected with the cathode, anode leads are connected into groups to lead out anode terminals, cathode leads are connected into groups to lead out cathode terminals, a plurality of battery monomers are placed into a case after being combined to form the flow battery galvanic pile, an electrolyte conveying pipeline, a flow passage, a liquid transfer pump and an electrolyte storage tank are connected, and the electrolyte is filled to form a flow battery galvanic pile system with the parallelly connected inside. The galvanic pile can completely avoid the inner self discharge caused by potential difference among the monomers, can not generate the electrolyte leakage caused by problems such as nonuniform pressure sealing among the monomers and the like, has the advantage of simple structure, is simple and convenient to maintain and can be applied to electrochemical synthesis industry and flow battery systems.
Description
Technical field
The utility model relates to a kind of flow battery pile, be used for solving inside self discharge that causes owing to the potential difference between the monomer in Electrochemical Engineering and industry electrolysis, electro-deposition and the flow battery system and the inhomogeneous problems such as electrolyte leakage that cause of wiper seal that occur easily, can be widely used in Electrochemical Engineering and the commercial plant field.
Background technology
The a large amount of consumption of the disposable energy causes world energy sources anxiety and ecological deterioration.Saving the energy, reduce environmental pollution, keep social sustainable development, is current global important topic.Regenerative resources such as exploitation wind energy, solar energy, tidal energy and biomass energy are the keys that solves energy problem and environmental problem.China has abundant regenerative resource resource, and the utilization of accelerating development regenerative resources such as wind energy, solar energy, biomass energy is very urgent.Formulate and implementing the strategy of sustainable development, strengthen the scale development utilization of regenerative resource.But when no matter being renewable energy power generations such as wind energy or solar energy, all there is the surging of power, voltage and frequency, is difficult to stable power-supplying.Test shows, electricity generation systems such as energy-storage system and wind energy, solar energy is cooperated can alleviate the fluctuation of total output greatly, therefore must develop scale energy storage technology efficiently for the realization stable power-supplying.China sets up the distributed power supply system to solve remote area power supplies, also needs " the electric energy bank " of scale energy-storage units as the distributed power supply system, is one of key technology that must effectively solve.Flow battery flexible design, life cycle cost are minimum, be the chemical cell of the most suitable scale energy storage now, so competitiveness are very strong, and application prospect is boundless, is one of indispensable technology of renewable energy utilization.
Flow battery is different from the traditional secondary battery, its positive and negative electrode active material mainly is present in the electrolyte, the electrolyte of positive and negative electrode is stored in battery outward separately independently in the fluid reservoir, flows through flow battery by liquid-feeding pump, and the positive and negative electrode electrolyte in the battery is separated by amberplex.In battery charge and discharge process, the variation of valence state takes place in the active material ion in the electrolyte on the inert electrode surface.During these, the electric charge of film both sides solution must have a kind of ion (as H in order to reach balance
+) synchronously move to another utmost point solution by amberplex by a utmost point solution.Another flow battery system is the appositional pattern flow battery, and the active material of one or two electrode of battery is with electrochemical deposition/course of dissolution energy storage.
Existing flow battery all adopts the electric pile structure of internal series-connection, patent (200810011542.3) as United States Patent (USP) (US2004/0202915A1) and Dalian Raycom Storage Technology Development Co., Ltd's application, the electrolyte of positive and negative electrode parallel flow is respectively crossed each battery cell, by bipolar plates monomer is unified into pile in the mode that positive pole connects negative pole between the monomer of single pile inside.This connection group heap mode is accomplished the voltage conforms instructions for use of single pile easily.Because the battery coupled in series, one part of current can pass through electrolyte house steward and branch road in the charge and discharge process of battery, and Here it is by-pass current causes the reduction of self discharge and energy efficiency.This part electric current also may produce complicated, unexpected electrochemical reaction on each electrode.Bring thus that self discharge is big, assembling needs accurately problem such as location and sealing difficulty.
In many cases, owing to exist by-pass current, monomer series-connected pile system to have to adopt modes such as long narrow passage or formation tortuous passageway to weaken by-pass current, can not be fully with its elimination.Feed protective current the electrolyte house steward and eliminate the method for by-pass current and need external power supply to regulate automatically, system complex not only, and need the additive decrementation electric energy.
Also usually use in electrolysis and the electroplating industry electrolyte crossfire and and the electrochemical reactor (as box, plunger streaming and plate and frame filter press formula electrochemical reactor etc.) of stream, in most cases also have by-pass current when adopting bipolar plate structure to reach required voltage between the monomer.
No matter be in the flow battery or electrolysis and electroplating industry in, eliminate even avoid by-pass current by designing special electric pile structure.Based on above consideration, we have proposed a kind of inner flow battery electric pile structure in parallel, are used for solving in Electrochemical Engineering and industry electrolysis, electro-deposition and the flow battery system because inside self discharge that the potential difference between the monomer causes and the easy inhomogeneous problems such as electrolyte leakage that cause of wiper seal that occur.
Summary of the invention
The purpose of this utility model is inside self discharge that causes for the potential difference that overcomes between the bipolar plates series connection monomer that existing flow battery electric pile structure adopts and the inhomogeneous problems such as electrolyte leakage that cause of wiper seal that occur easily, has simple in structure, easy to maintenance and is easy to advantage such as control.
The purpose of this utility model realizes by following manner:
A kind of flow battery pile, constitute battery cell 1 by positive pole 2, runner 4 and negative pole 3, battery cell 1 is connect mode anodal 2, that negative pole 3 connects negative pole 3 according to anodal 2 to be coupled together, anodal 2 lead-in wires are linked to be group and draw positive terminal 6, negative pole 3 lead-in wires are linked to be group and draw negative terminal 5, to put into 7 one-tenth flow battery piles 11 of shell after two above battery cell 1 combinations, electrolyte feed-line 10 is connected with runner 4, infusion pump 9 and electrolyte storage tank 8, inject electrolyte, form inner flow battery pile system in parallel.
The electrolyte of the flow battery pile of this inside parallel connection by runner 4 parallel flowing, is easy to guarantee that electrolyte is evenly distributed in pile inside, the flow velocity unanimity in flow battery pile 11.
In the flow battery electric pile structure of this inside parallel connection, shell 7 can add 1 one-tenth flow battery pile 11 of two above battery cells of press fit, be easy to guarantee the electrical connection between the electrode, flow through at the position that limits when accomplishing easily also that electrolyte flows in pile and can not reveal.
In the flow battery electric pile structure of this inside parallel connection, shell 7 can seal, and the position of drawing positive terminal 6 and negative terminal 5 is airtight, and electrolyte can only be flowed into and outflow pile 11 by runner 4.
In the flow battery electric pile structure of this inside parallel connection, an one battery cell 1 can have only a runner 4, and promptly a battery cell 1 has only an electrolyte liquor chamber.In this case, this flow battery pile only needs an electrolyte storage tank 8, promptly is the single flow battery pile.
In the flow battery electric pile structure of this inside parallel connection, an one battery cell 1 can have two runners of separating with amberplex 12 4, and promptly a battery cell 1 can have two electrolyte liquor chambers, and one flows through anodal electrolyte, and another flows through negative pole electrolyte.In this case, the anodal electrolyte and the negative pole electrolyte that flow through in the flow battery pile 11 can not mix, and must have two electrolyte storage tanks to store anodal electrolyte and negative pole electrolyte respectively.
The utility model can alleviate even eliminate because the inside self discharge problem that the potential difference between the monomer causes is easy to solve the inhomogeneous problems such as electrolyte leakage that cause of wiper seal in the Series Sheet body structure by the special design of the flow battery electric pile structure of inner parallel connection.But the CURRENT DISTRIBUTION of the flow battery electric pile structure standard electrode reaction of inner parallel connection, the strict demand that has alleviated monomer consistency aspect is easy to processing and assembling, and is simple in structure, easy to maintenance, can be used in electrolysis, electroplating industry and the flow battery system.Adopt inner flow battery electric pile structure in parallel, can reach the target of expansion voltage and current by the connection in series-parallel between the pile.
Description of drawings
The structural representation of a kind of flow battery pile of Fig. 1
1. battery cell, 2. positive pole, 3. negative pole, 4. runner, 5. negative terminal, 6. positive terminal, 7. shell, 8. electrolyte storage tank, 9. infusion pump, 10. electrolyte feed-line, 11. piles
The structural representation of a kind of flow battery pile of Fig. 2
1. battery cell, 2. positive pole, 3. negative pole, 4. runner, 5. negative terminal, 6. positive terminal, 7. shell, 8. electrolyte storage tank, 9. infusion pump, 10. electrolyte feed-line, 11. piles, 12. amberplexes
Embodiment
Example 1
As shown in Figure 1.The basic composition unit cells monomer 1 of forming flow battery pile 11 with the sintered type nickel oxide electrode as positive pole 2, by the polypropylene barrier of chute as runner 4 and punching nickel plated steel strip as negative pole 3.A plurality of battery cells 1 are connect mode (shown in Figure 1) anodal 2, that negative pole 3 connects negative pole 3 according to anodal 2 to be coupled together, anodal 2 lead-in wires are linked to be group and draw positive terminal 6, negative pole 3 lead-in wires are linked to be group and draw negative terminal 5, will put into 7 one-tenth flow battery piles 11 of shell after a plurality of battery cell 1 combinations.Electrolyte feed-line 10 is connected with runner 4, infusion pump 9 and electrolyte storage tank 8, and the aqueous alkaline electrolyte that injects zincate is formed parallel, the inner zinc-nickel single flow battery in parallel of electrolyte, the anodal generation when discharging and recharging as electrolyte
Electrochemical reaction, the deposition of negative pole generation zinc/dissolving electrochemical reaction.Adopt inner flow battery electric pile structure in parallel can avoid fully because the inside self discharge that the potential difference between the monomer causes, only there is flow of solution pipe joint etc. to locate to occur problems such as electrolyte leakage, can not occur because the electrolyte leakage that problems such as wiper seal is inhomogeneous cause between the monomer has advantage simple in structure, easy maintenance.Runner 4 can be rubber, polyethylene, polyvinyl chloride, polypropylene, nylon, ABS plastic, polysulfone plastic, epoxy resin, Polyurethane or their materials such as composite material, and electron conduction can not be arranged.Shell 7 can be rubber, polyethylene, polyvinyl chloride, polypropylene, nylon, ABS plastic, polysulfone plastic, epoxy resin, Polyurethane or their materials such as composite material, also can adopt metal material.Anodal 2 can be welded to connect with positive terminal 6 or riveted joint or bolt are connected by collector, and positive pole 2 and positive terminal 6 must be electronic conduction.Negative pole 3 can be welded to connect with negative terminal 5 or riveted joint or bolt are connected by collector, and negative pole 3 and negative terminal 5 also must be electronic conduction.Not conducting of electronics between positive terminal 6 and the negative terminal 5.Have one to be electronic conduction at the most between positive terminal 6, negative terminal 5 and the shell 7, promptly positive terminal 6 or negative terminal 5 have at the most one can be by drawing on the shell 7.
Example 2
As shown in Figure 1.With the impermeability glassy carbon electrodes as anodal 2, forms the basic composition unit cells monomer 1 of flow battery pile 11, the wherein electrolyte flow channel of positive pole 2 and negative pole 3 shared runners 4 by the ABS plastic runner 4 of chute and impermeability flexible graphite electrodes as negative pole 3.A plurality of battery cells 1 are connect mode (shown in Figure 1) anodal 2, that negative pole 3 connects negative pole 3 according to anodal 2 to be coupled together, wherein sandwich the lead plating copper coin as collector plate between two positive poles 2 and between two negative poles 3, anodal 2 are linked to be group by lead plating copper coin lead-in wire draws positive terminal 6, negative pole 3 is linked to be group by lead plating copper coin lead-in wire and draws negative terminal 5, will put into 7 one-tenth flow battery piles 11 of shell after a plurality of battery cell 1 combinations.Electrolyte feed-line 10 is connected with runner 4, infusion pump 9 and electrolyte storage tank 8, the electrolyte aqueous solution that injects copper methanesulfonate, pyrovinic acid lead and pyrovinic acid composition is as electrolyte, form parallel, the inner copper-lead single flow battery in parallel of electrolyte, anodal deposition/dissolving that brown lead oxide takes place when discharging and recharging
Electrochemical reaction, the deposition of negative pole generation copper/dissolving electrochemical reaction.
Example 3
As shown in Figure 2.With impermeability flexible graphite stack graphitization carbon felt electrode as basic composition unit cells monomer 1 anodal 2, that form flow battery pile 11 as negative pole 3 by the ABS plastic runner 4 and the impermeability flexible graphite stack graphitization carbon felt electrode of chute, wherein anodal 2 and runners 4 are formed positive polar region, negative pole 3 and a runner 4 and are formed the negative pole district, separate with perfluorinated sulfonic acid ion exchange membrane 12 in positive polar region and negative pole district (being between the runner 4 in the runner 4 ' of positive polar region and negative pole district), and the electrolyte that flows through positive polar region and negative pole district does not mix.A plurality of battery cells 1 are connect mode (shown in Figure 2) anodal 2, that negative pole 3 connects negative pole 3 according to anodal 2 to be coupled together, wherein sandwich the lead plating copper coin as collector plate between two positive poles 2 and between two negative poles 3, be linked to be group respectively by the collector plate lead-in wire and draw positive terminal 6 and negative terminal 5, will put into 7 one-tenth flow battery piles 11 of shell after a plurality of battery cell 1 combinations.Electrolyte feed-line 10 is connected with runner 4, infusion pump 9 and electrolyte storage tank 8, in anodal electrolysis liquid storage tank 8 ', inject the aqueous solution of sulfuric acid, vanadic sulfate (tetravalence) as electrolyte, the aqueous solution that injects sulfuric acid, vanadic sulfate (trivalent) in the negative pole electrolysis liquid storage tank 8 is as electrolyte, form parallel, the inner all-vanadium flow battery in parallel of electrolyte, the anodal generation when discharging and recharging
Electrochemical reaction, negative pole takes place
Electrochemical reaction.
Claims (5)
1. flow battery pile, it is characterized in that constituting battery cell (1) by anodal (2), runner (4) and negative pole (3), battery cell (1) is connect the mode that positive pole (2), negative pole (3) connect negative pole (3) according to anodal (2) to be coupled together, anodal (2) lead-in wire is linked to be group and draws positive terminal (6), negative pole (3) lead-in wire is linked to be group and draws negative terminal (5), becomes flow battery pile (11) with putting into shell (7) after two above battery cells (1) combination; Electrolyte feed-line (10) is connected with runner (4), infusion pump (9) and electrolyte storage tank (8), injects electrolyte, form inner flow battery pile system in parallel.
2. flow battery pile according to claim 1 is characterized in that electrolyte flows by runner (4) is parallel in flow battery pile (11).
3. flow battery pile according to claim 1, it is characterized in that shell (7) can add two above battery cells of press fit (1) and become flow battery pile (11), shell (7) can seal, the position of drawing positive terminal (6) and negative terminal (5) is airtight, and electrolyte can only be flowed into and outflow by runner (4).
4. flow battery pile according to claim 1 is characterized in that a battery cell (1) has only a runner (4), and promptly a battery cell (1) has only an electrolyte liquor chamber.
5. flow battery pile according to claim 1, it is characterized in that a battery cell (1) has two runners of separating with amberplex (12) (4), promptly a battery cell (1) has two electrolyte liquor chambers, one flows through anodal electrolyte, another flows through negative pole electrolyte, and anodal electrolyte and negative pole electrolyte can not mix in whole flow battery pile (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206018716U CN201845830U (en) | 2010-11-11 | 2010-11-11 | Flow battery galvanic pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206018716U CN201845830U (en) | 2010-11-11 | 2010-11-11 | Flow battery galvanic pile |
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| CN201845830U true CN201845830U (en) | 2011-05-25 |
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| CN2010206018716U Expired - Fee Related CN201845830U (en) | 2010-11-11 | 2010-11-11 | Flow battery galvanic pile |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593481A (en) * | 2012-03-14 | 2012-07-18 | 中国东方电气集团有限公司 | Flow battery, battery stack, battery system and control method for electrolyte thereof |
| CN103268951A (en) * | 2013-05-16 | 2013-08-28 | 中国科学院长春应用化学研究所 | Cerium copper redox flow battery |
| CN104335405A (en) * | 2012-08-22 | 2015-02-04 | 日新电机株式会社 | Energy storage battery |
| CN106252683A (en) * | 2016-08-31 | 2016-12-21 | 安徽远东船舶有限公司 | A kind of all-vanadium flow battery galvanic pile module peculiar to vessel |
| CN106654294A (en) * | 2017-01-16 | 2017-05-10 | 中国东方电气集团有限公司 | Bipolar plate, flow battery and flow battery stack |
| CN107240706A (en) * | 2017-06-29 | 2017-10-10 | 江苏科技大学 | One kind is based on bilateral feed flow modularization zinc-nickel list liquid energy-storage system |
| WO2018032409A1 (en) * | 2016-08-17 | 2018-02-22 | 大连融科储能技术发展有限公司 | Flow battery system and large scale flow battery energy storage device |
| CN108134123A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of pile of redox flow batteries |
| CN109755621A (en) * | 2017-11-08 | 2019-05-14 | 中国科学院大连化学物理研究所 | A kind of zinc-nickel single flow battery |
| CN110247093A (en) * | 2019-06-25 | 2019-09-17 | 西安理工大学 | A kind of preparation method of lead liquid stream pile |
| CN110635148A (en) * | 2019-09-23 | 2019-12-31 | 中国东方电气集团有限公司 | Flow battery |
| CN114497670A (en) * | 2020-11-12 | 2022-05-13 | 中国科学院大连化学物理研究所 | Zinc-bromine single-flow galvanic pile |
-
2010
- 2010-11-11 CN CN2010206018716U patent/CN201845830U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593481A (en) * | 2012-03-14 | 2012-07-18 | 中国东方电气集团有限公司 | Flow battery, battery stack, battery system and control method for electrolyte thereof |
| CN104335405A (en) * | 2012-08-22 | 2015-02-04 | 日新电机株式会社 | Energy storage battery |
| CN103268951A (en) * | 2013-05-16 | 2013-08-28 | 中国科学院长春应用化学研究所 | Cerium copper redox flow battery |
| WO2018032409A1 (en) * | 2016-08-17 | 2018-02-22 | 大连融科储能技术发展有限公司 | Flow battery system and large scale flow battery energy storage device |
| US11705570B2 (en) | 2016-08-17 | 2023-07-18 | Dalian Rongkepower Co., Ltd | Flow battery system and large scale flow battery energy storage device |
| CN106252683A (en) * | 2016-08-31 | 2016-12-21 | 安徽远东船舶有限公司 | A kind of all-vanadium flow battery galvanic pile module peculiar to vessel |
| CN108134123A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of pile of redox flow batteries |
| CN106654294A (en) * | 2017-01-16 | 2017-05-10 | 中国东方电气集团有限公司 | Bipolar plate, flow battery and flow battery stack |
| CN107240706A (en) * | 2017-06-29 | 2017-10-10 | 江苏科技大学 | One kind is based on bilateral feed flow modularization zinc-nickel list liquid energy-storage system |
| CN109755621A (en) * | 2017-11-08 | 2019-05-14 | 中国科学院大连化学物理研究所 | A kind of zinc-nickel single flow battery |
| CN110247093A (en) * | 2019-06-25 | 2019-09-17 | 西安理工大学 | A kind of preparation method of lead liquid stream pile |
| CN110635148A (en) * | 2019-09-23 | 2019-12-31 | 中国东方电气集团有限公司 | Flow battery |
| CN114497670A (en) * | 2020-11-12 | 2022-05-13 | 中国科学院大连化学物理研究所 | Zinc-bromine single-flow galvanic pile |
| CN114497670B (en) * | 2020-11-12 | 2023-10-13 | 中国科学院大连化学物理研究所 | Zinc bromine single-liquid flow galvanic pile |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANGJIAGANG SMARTGRID FANGHUA ELECTRICAL ENERGY S Effective date: 20140402 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140402 Address after: 925 box 100191, Beijing, Beijing Patentee after: No.63971 Troops, PLA Patentee after: ZHANGJIAGANG SMARTGRID FANGHUA ELECTRICAL ENERGY STORAGE RESEARCH INSTITUTE CO., LTD. Address before: 925 box 100191, Beijing, Beijing Patentee before: No.63971 Troops, PLA |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20181111 |