CN104795577B - A kind of bipolar plates plate frame structure for large power redox flow cell heap - Google Patents
A kind of bipolar plates plate frame structure for large power redox flow cell heap Download PDFInfo
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- CN104795577B CN104795577B CN201410022422.9A CN201410022422A CN104795577B CN 104795577 B CN104795577 B CN 104795577B CN 201410022422 A CN201410022422 A CN 201410022422A CN 104795577 B CN104795577 B CN 104795577B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The present invention relates to a kind of bipolar plates plate frame structure for large power redox flow cell heap, including positive pole sheet frame and negative pole sheet frame, bipolar plates sheet frame is provided with fluid passing hole, described fluid inlet and outlet includes anode electrolyte manhole appendix and electrolyte liquid is imported and exported, described bipolar plates sheet frame includes sheet frame and cover plate, conductive bipolar plate is placed in positive pole, the centre of negative pole two boards frame, the two ends of sheet frame are provided with drainage trough, drainage groove upper cap sets cover plate, described anode electrolyte manhole appendix and electrolyte liquid are imported and exported to enter to have more setting more, i.e. anode electrolyte enters hole, anode electrolyte portals, electrolyte liquid enters hole and electrolyte liquid portals at least provided with 2.Compared with prior art, the present invention have will not self discharge, the advantages of easily sealing, save material.
Description
Technical field
The present invention relates to a kind of field of new energy technologies, more particularly, to a kind of for the bipolar of large power redox flow cell heap
Plate plate frame structure.
Background technology
It is that the mankind utilize the topmost side of generation of electricity by new energy in the future using renewable energy power generations such as wind energy, solar energy
Formula.Because wind energy, solar power generation process are influenceed by natural cause such as weather etc., with randomness, discontinuous feature, it is difficult to protect
The electric energy output for keeping steady fixed with the apparatus for storing electrical energy of certain scale, it is necessary to be engaged, the complete electric power system of composition, it is ensured that hold
Continue stable electric energy supply.Therefore, exploitation electric energy conversion efficiency height, the energy-storage system that storage volume is big, economic performance is good turn into
Utilize the key problem in technology of generation of electricity by new energy.With various forms of energy storage technologies, for example retaining energy-accumulating power station, high speed flywheel machinery
Energy storage, superconducting energy storage etc. compare, and electrochemical energy storage has energy conversion efficiency high, the features such as mobility is strong, in all kinds of storages
There can be unique advantage in technology.In various electrochemical energy storage technologies, flow battery system have Large Copacity electrical power storage with
Efficient Conversion function, and service life length, environmental protection, it is safe the characteristics of, it is easy to and wind energy, solar power generation match, can be with
Equipment manufacturing cost is greatly lowered, providing technology for generation of electricity by new energy ensures.For network system energy storage, it is suitable for medium-scale factory
Ore deposit enterprise, hotel, the uninterrupted power source of government department are used, and can be effectively improved grid supply quality, complete power network
" peak load shifting " is acted on.
All-vanadium flow battery (Vanadium Redox Battery, VRB) is a kind of mechanism of new electrochemical power sources, passes through different price
The vanadium ion of state mutually converts the storage and release for realizing electric energy, constitutes battery system using v element of the same race, is kept away from principle
The cross pollution that variety classes active material between positive and negative half-cell interpenetrates generation is exempted from.(Fig. 1) is used and is dissolved in electrolyte
Middle different valence state vanadium ion is separately stored as anode and negative electrode active material, anode electrolyte and electrolyte liquid, from
Battery storage process self-discharge phenomenon is avoided in principle, is suitable for extensive thermal energy storage process application.Anode electrolyte storage tank B and negative
Pole electrolyte reservoir A provides electrolyte, positive pole E and negative pole E ' by magnetic drive pump D for the positive pole E and negative pole E of all-vanadium flow battery
Separated by amberplex G, be that power source loads C powers.When the power of wind energy, device of solar generating exceedes rated output work(
During rate, by the charging to flow battery, convert electrical energy into chemical energy and be stored in the ion pair of different valence state；When the dress that generates electricity
Put when can not meet rated output power, flow battery starts electric discharge, and the chemical energy of storage is converted into electric energy, it is ensured that stable electricity
Power output.Due to significance of the flow battery for the renewable energy power generation process such as wind energy, solar energy, crucial skill is used as
Art at home and abroad obtains common concern.
Following redox reaction will occur on all-vanadium flow battery charge/discharge running, electrode.
Positive pole reacts：
Negative reaction：
Because anode electrolyte and electrolyte liquid are respectively at oxidisability valence state and reproducibility valence state, either in pile
Internal charge/discharge running, or electrolyte course of conveying is, it is necessary to keep anode electrolyte and electrolyte liquid not to send out
Raw mixing, otherwise exchanges electronics and produces self-discharge phenomenon, have a strong impact on battery efficiency each other between the vanadium ion of different valence state.Generally
Situation, two kinds of electrolyte transfer pipelines, delivery pumps, and storage container are easily realized independently of one another, do not produce anode electrolyte
With electrolyte liquid mixed problem.However, electrolyte is in pile internal flow process and flows through the flow process of storage container,
Cause positive pole, the mixing of electrolyte liquid or self-discharge phenomenon in the presence of three kinds.1) mixing of amberplex is passed through：Work as ion exchange
Film for vanadium ion barrier properties it is not good enough when, cell charging/discharging running is with hydrogen ions, and cross-film occurs for vanadium ion
Infiltration；It can improve to vanadium ion/hydrogen ion selective by selecting suitable membrane material, solve vanadium ion transmembranal penetration and ask
Topic.2) mixing of pile sealing structure is passed through：Two kinds of electrolyte are needed also cross same interface, and are assigned to electrode surface
It is electrochemically reacted.Pile sealing will ensure that electrolyte can neither be leaked into outside pile, ensure again inside pile each other
Between not liquid leakage, particularly realize that amberplex and two kinds of electrolyte are sealed simultaneously in approximately the same plane, it is often very difficult.
Existing flow battery technology (China Patent Publication No.：1531761A, 1515046A) using O-shaped sealing ring simultaneously crimp barrier film and
Hermetic electrolyte liquid mode, carries out pile sealing, obtains certain effect.However, the electric pile structure sealing means depend critically upon electricity
Pond sheet frame machining accuracy and seal member material properties, often because temperature change, amberplex size become during long-term use
The factors such as change, cause two kinds of electrolyte to be leaked from sealing position, produce mixed self discharge problem.3) electrolyte supply is passed through
There is it during each monocell and import and export total pipeline with electrolyte, or be common conduit, cause each inside battery to produce by-pass current,
Cause self-discharge of battery, and cause battery capacity partial loss.
In order to solve inside the pile of existing flow battery three kinds of electrolyte from sealing position leakage, crossover leaks and reduction
Pass through electrolyte self-discharge problem, it is to avoid electrolyte hands over justice pollution, reduce by electrolyte self-discharge, improve coulombic efficiency.Specially
Profit application 200910078434.2 discloses a kind of flow battery, and its positive and negative liquid stream sheet frame and its inside casing are square or square
Shape, positive and negative one jiao of setting inlet opening in liquid flow frame plate bottom, another angle sets liquid pass hole, one jiao of top setting fluid hole, another angle
Liquid pass hole is set, and positive and negative liquid stream sheet frame upper and lower part is respectively equipped with feed liquor branch flow channel and goes out liquid branch flow channel, feed liquor branch road
Runner and go out that liquid branch flow channel is uniform to connect and compose disk serpentine runner by three long straight trough head and the tail are roundabout, be multiplied liquid in-out
The length of branch flow channel, so that the resistance for the electrolyte liquid inlet and outlet branch flow channel that has been multiplied, thus liquid stream electricity is reduced at double
Pond self-discharge current, substantially increases the energy efficiency of flow battery.
But this scheme, the public dispensing orifice of turnover fluid is all disposed within deckle board, and public dispensing orifice will quadrature
It is larger, cause deckle board area to increase, and also the electrolyte of public dispensing orifice outflow is not directly entered electrode, but pass through Z-type
What liquid in-out branch flow channel was imported, Z-type liquid in-out branch flow channel is also disposed on deckle board, and area occupied is big, causes deckle board volume
Greatly, waste of materials, and the sealing of Z-type liquid in-out branch flow channel is more difficult, in order that Z-type fluid passage is sealed, there is provided cover plate lid
Firmly Z-type fluid passage, but be still difficult sealing, especially work as battery operation, when temperature is raised, due to expanding with heat and contract with cold, sealing
It is more difficult, easily occur electrolyte channelling, cause self discharge, in addition, Z-type fluid passage limited flow, flow resistance hands over big, increase
The power consumption of the electrolyte delivery pump of whole flow battery system, so as to reduce system effectiveness.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind can greatly reduce it is logical
Leakage self discharge is crossed, is easily sealedly used for the bipolar plates plate frame structure of large power redox flow cell heap.
The purpose of the present invention can be achieved through the following technical solutions：It is a kind of to be used for the bipolar of large power redox flow cell heap
Plate plate frame structure, including positive pole sheet frame and negative pole sheet frame, bipolar plates plate frame structure are provided with fluid passing hole, and described fluid enters
Outlet includes anode electrolyte manhole appendix and electrolyte liquid is imported and exported, and described bipolar plates sheet frame includes sheet frame and cover plate, leads
Electric bipolar plates are placed in the middle of positive pole sheet frame and negative pole sheet frame two boards frame, and the two ends of sheet frame are provided with drainage trough, and drainage groove upper cap is set
Cover plate, it is characterised in that described anode electrolyte manhole appendix and electrolyte liquid are imported and exported to enter to have more setting, i.e. positive pole more
Electrolyte enters that hole, anode electrolyte are portalled, electrolyte liquid enters hole and electrolyte liquid portals at least provided with 2.
Described bipolar plates sheet frame is made up of positive pole sheet frame with negative pole sheet frame, and conductive bipolar plate is placed in the middle of two pieces of sheet frames,
The equal placing graphite felt in conductive bipolar plate both sides, the thickness of graphite felt is concordant with sheet frame after dress heap compression；Described positive pole sheet frame
It is symmetrical arranged with negative pole sheet frame, negative pole sheet frame is changed into after positive pole sheet frame rotation 180 degree.
The obverse and reverse of described positive pole sheet frame and negative pole sheet frame is equipped with a peripheral seal groove, and the peripheral seal groove is set
Put at sheet frame edge, and in the fluid passing hole and drainage trough on bipolar plates sheet frame be enclosed in, and the wherein periphery of reverse side
The seal groove on all fluid passing hole peripheries is together in series by seal groove respectively, with all streams of an integral sealing ring fitted seal
Body manhole appendix and peripheral part, reach the purpose of final sealing anti-leak.
Described anode electrolyte enters hole provided with 2~5, and anode electrolyte portals provided with 2~5, and electrolyte liquid enters
Hole is provided with 2~5, and electrolyte liquid portals provided with 2~5.
Described electrolyte drainage trough is looped around each fluid passing hole periphery, i.e., draw drainage trough simultaneously from each fluid passing hole
Around fluid passing hole formation annular flow path, the number of turns of annular flow path is 1~10 circle.
Guide from the public manhole appendix outflow of electrolyte flow, the electrolyte flowed into and enter conversion zone or outflow conversion zone
Drainage trough be made up of two parts：Annular flow path, then split into and a plurality of electrolyte is evenly distributed in effecting reaction region
Direct current groove, described annular flow path connects a plurality of direct current groove for evenly distributing electrolyte of the nearly comfort zone side of sheet frame, from
The liquid of electrolyte flow manhole appendix outflow flow to direct current groove through annular flow path, and the membrane electrode for entering back into the inside casing setting of sheet frame enters
Row reaction, flows out conversion zone and is imported into direct current groove and outflows back to annular flow path again and enter Fluid-exiting apertures after reaction.
Guide from the public manhole appendix outflow of electrolyte flow, the electrolyte flowed into and enter conversion zone or outflow conversion zone
The boss ridge sides of drainage trough both sides be provided with groove, described cover plate is provided with the raised line with the groove match, cover plate
When covering on sheet frame, the raised line on cover plate is inserted in corresponding groove, cover plate is tightly connected with sheet frame；Or be reversed：
Raised line is provided with i.e. on ridge side, and groove is set on cover plate corresponding thereto, when cover plate is covered on sheet frame, the raised line on sheet frame
On discrepancy cover plate in corresponding groove, cover plate is set to be tightly connected with sheet frame.
Sealing ring is provided with groove on sheet frame or cover plate or has cohesive glue, in the raised line insertion groove, is passed through
Sealing ring or glue bonding sealing.
The periphery of described conductive bipolar plate is enclosed with insulating elastomer, and insulating elastomer is with reeded annular insulation
Elastomeric material, the groove is fastened on conductive bipolar plate peripheral end surface.
The insulating elastomer pair that the marginal position that positive pole sheet frame compresses bipolar plates with negative pole sheet frame is wrapped up with bipolar plates periphery
The groove that should locate to be provided with groove, adjacent sheet frame is symmetrical arranged, and annular insulating elastomer is stuck in wherein；Described dielectric resilience
Body is a kind of acidproof, oxide etch elastomeric material or plastics.
Compared with prior art, the present invention has advantages below：
1. more enter the fluid passing hole having more design make fluid dispersion to conversion zone evenly, reduce fluid resistance；
2. setting the tongue and groove matched to carry out clamping on the drainage trough and cover plate at bipolar plates two ends, both can quickly it tear open
Dress, reaches security seal again, efficiency high, and and sealing ring is provided with groove or fluid in glue, each drainage trough is bonded
Will not occur crossfire, not easy to leak, reduce the possibility of self discharge；
3. annular electro-insulating rubber parcel is set on the end face on the whole periphery of conductive bipolar plate, and in positive and negative electrode sheet frame and pressure
The marginal position of tight bipolar plates sets groove to seal annular insulating cement screens, substantially increases sealing property.
Brief description of the drawings
Fig. 1 is all-vanadium flow battery schematic diagram；
Fig. 2 is sheet frame front schematic view；
Fig. 3 is sheet frame reverse side schematic diagram；
Fig. 4 is cover plate front schematic view；
Fig. 5 is cover plate reverse side schematic diagram；
Fig. 6 is conductive bipolar plate and sheet frame and sealing ring connected component structural representation；
Fig. 7 is the structural representation of monocell
Fig. 8 is the structural representation of fuel cell pack.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Fig. 2-3,7, a kind of bipolar plates plate frame structure for high-power MW class liquid stream battery stack, including positive pole
Sheet frame, negative pole sheet frame, size are 800mm × 1000mm × 7mm, and the bipolar plates sheet frame is provided with fluid passing hole, described stream
Body, which is imported and exported, to be included anode electrolyte manhole appendix and electrolyte liquid and imports and exports, and described bipolar plates sheet frame is by positive pole sheet frame with bearing
Pole plate frame is constituted, and two pieces of sheet frames include placing conductive bipolar plate 5, conductive bipolar plate 5 in the middle of sheet frame 2 and cover plate 1, two pieces of sheet frames
Carbon felt 4 is placed in both sides, and the thickness of carbon felt 4 is concordant with sheet frame after dress heap compression；Described positive pole sheet frame and negative pole sheet frame pair
Claim to set, bipolar plates and carbon felt 4 and the composition monocell of membrane electrode 3.As shown in figure 8, described bipolar plates and membrane electrode assembly Cheng Dan
Battery, multiple monocell superposition composition piles, pile two ends are provided with end plate 10, and end plate is provided with fastener hole, and pile passes through screw rod
101 are fixed through the fastener hole on the end plate of two ends.Fluid passing hole in each bipolar plates is superimposed to form electrolyte flow public affairs
Common manhole appendix.Guide from the public manhole appendix outflow of electrolyte flow, the electrolyte flowed into and enter conversion zone or outflow reaction zone
The drainage trough in domain is made up of two parts：Annular flow path 22, then split into and a plurality of electrolyte is evenly distributed to effecting reaction region
In direct current groove 23.
The obverse and reverse of described positive pole sheet frame and negative pole sheet frame is equipped with a peripheral seal groove, and the peripheral seal groove is set
Put at sheet frame edge, and in the fluid passing hole and drainage trough on bipolar plates sheet frame be enclosed in, and the wherein periphery of reverse side
The seal groove on all fluid passing hole peripheries is together in series by seal groove respectively, with all streams of an integral sealing ring fitted seal
Body manhole appendix and peripheral part, reach the purpose of final sealing anti-leak.
Described annular flow path 22 is looped around each periphery of fluid passing hole 21, i.e., draw drainage trough from each fluid passing hole 21
And around fluid passing hole formation annular flow path, the number of turns of annular flow path is 1~10 circle.Described annular flow path through plate inframe
The direct current groove 23 of frame front side edge, enters the liquid flowed out in hole from fluid and flow to direct current groove through annular flow path, entering the inside casing of sheet frame
The membrane electrode of preceding setting is reacted.
The drainage groove upper cap that the two ends of sheet frame 2 are set sets cover plate, described anode electrolyte manhole appendix and electrolyte liquid
Import and export and enter that hole, anode electrolyte are portalled, electrolyte liquid enters hole and electrolyte more to enter to have more setting, i.e. anode electrolyte
Liquid, which portals, is equipped with 2.
Boss ridge side between two drainage troughs is provided with groove 24, and described cover plate is provided with and the groove match
Raised line 11, when cover plate is covered on sheet frame, the raised line 11 on cover plate is inserted in corresponding groove 24, cover plate 1 is sealed with sheet frame 2
Connection is (as illustrated in figures 4-5).It is provided with described groove 24 in sealing ring, the insertion of raised line 11 groove 24, passes through sealing ring
Sealing.
As shown in fig. 6, being enclosed with electro-insulating rubber 6 on the whole peripheral end surface of described conductive bipolar plate 5, insulating cement 6 is
With reeded annular insulating cement, monoblock bipolar plates periphery snare is got up, the conductive bipolar plate 5 with sealing rubber cover
Peripheral sealing part entire card enters to be located in the groove on both positive and negative polarity bipolar plates sheet frame 2, with good exhausted of snare on described sheet frame 2
The groove 25 that edge rubber corresponding position is provided with groove 25, adjacent sheet frame is symmetrical arranged, and annular electro-insulating rubber is stuck in wherein.Insulation
Rubber is elastomer, and is acidproof, oxide etch elastomeric material or plastics.
Embodiment 2
The ridge side of described sheet frame is provided with raised line, and sets groove on cover plate corresponding thereto, and cover plate is covered in sheet frame
When upper, on the raised line discrepancy cover plate on sheet frame in corresponding groove, cover plate was set to be tightly connected with sheet frame.
Described anode electrolyte enters hole and also can be set more than 2, and such as 3,4 or 5, anode electrolyte portals, born
Pole electrolyte enters hole and may also set up 3,4 or 5 provided with portalling with electrolyte liquid.Remaining be the same as Example 1.
Claims (7)
1. a kind of bipolar plates plate frame structure for large power redox flow cell heap, including positive pole sheet frame and negative pole sheet frame, bipolar plates
Plate frame structure is provided with fluid passing hole, and described fluid passing hole includes anode electrolyte manhole appendix and electrolyte liquid is passed in and out
Hole, bipolar plates sheet frame includes sheet frame and cover plate, and conductive bipolar plate is placed in the middle of positive pole sheet frame and negative pole sheet frame two boards frame, sheet frame
Two ends be provided with drainage trough, drainage groove upper cap sets cover plate, it is characterised in that described anode electrolyte manhole appendix and electrolyte
Liquid manhole appendix enters that hole, anode electrolyte are portalled, electrolyte liquid enters hole and negative electricity more to enter to have more setting, i.e. anode electrolyte
Solution liquid portals at least provided with 2；
Described electrolyte drainage trough is looped around each fluid passing hole periphery, i.e., draw drainage trough from each fluid passing hole and surround
Fluid passing hole formation annular flow path, the number of turns of annular flow path is 1~10 circle；
Guide and enter conversion zone from the public manhole appendix outflow of electrolyte flow, the electrolyte flowed into or flow out drawing for conversion zone
Chute is made up of two parts：Annular flow path and direct current groove, wherein annular flow path will draw drainage trough and ring from each fluid passing hole
After hydrodynamic form manhole appendix, then split into a plurality of direct current groove electrolyte being evenly distributed in effecting reaction region, described ring
The a plurality of direct current groove for evenly distributing electrolyte of the nearly comfort zone side of shape fluid communication sheet frame, from electrolyte flow manhole appendix
The liquid of outflow flow to direct current groove through annular flow path, and the membrane electrode for entering back into the inside casing setting of sheet frame is reacted, and is flowed after reaction
Go out conversion zone and be imported into direct current groove and outflow back to annular flow path again to enter Fluid-exiting apertures；
Guide and enter conversion zone from the public manhole appendix outflow of electrolyte flow, the electrolyte flowed into or flow out drawing for conversion zone
The boss ridge side of chute both sides is provided with groove, and described cover plate is provided with the raised line with the groove match, and cover plate is covered
When on sheet frame, the raised line on cover plate is inserted in corresponding groove, cover plate is tightly connected with sheet frame；Or be reversed：Exist
Ridge side is provided with raised line, and sets groove on cover plate corresponding thereto, and when cover plate is covered on sheet frame, the raised line on sheet frame comes in and goes out
On cover plate in corresponding groove, cover plate is set to be tightly connected with sheet frame.
2. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 1, it is characterised in that
Described bipolar plates sheet frame includes placing conductive bipolar plate, conductive bipolar plate in the middle of positive pole sheet frame and negative pole sheet frame, two pieces of sheet frames
The equal placing graphite felt in both sides, the thickness of graphite felt is concordant with sheet frame after dress heap compression；Described positive pole sheet frame and negative pole sheet frame
It is symmetrical arranged, negative pole sheet frame is changed into after positive pole sheet frame rotation 180 degree.
3. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 1, it is characterised in that
The obverse and reverse of described positive pole sheet frame and negative pole sheet frame is equipped with a peripheral seal groove, and the peripheral seal groove is arranged on sheet frame
Edge, and in the fluid passing hole and drainage trough on bipolar plates sheet frame be enclosed in, and the wherein peripheral seal groove point of reverse side
The seal groove on all fluid passing hole peripheries is not together in series, with all fluid passing holes of integral sealing ring fitted seal
And peripheral part, reach the purpose of final sealing anti-leak.
4. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 1, it is characterised in that
Described anode electrolyte enters hole provided with 2~5, and anode electrolyte portals provided with 2~5, electrolyte liquid enter hole provided with 2~
5, electrolyte liquid portals provided with 2~5.
5. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 1, it is characterised in that
Provided with sealing ring or have cohesive glue in groove on sheet frame or cover plate, in the raised line insertion groove, by sealing ring or
Glue bonding is sealed.
6. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 1, it is characterised in that
The periphery of described conductive bipolar plate is enclosed with insulating elastomer, and insulating elastomer is with reeded annular electro-insulating rubber material
Material, the groove is fastened on conductive bipolar plate peripheral end surface.
7. a kind of bipolar plates plate frame structure for large power redox flow cell heap according to claim 6, it is characterised in that
The insulating elastomer corresponding position that the marginal position that positive pole sheet frame compresses bipolar plates with negative pole sheet frame is wrapped up with bipolar plates periphery is provided with
Groove on groove, adjacent sheet frame is symmetrical arranged, and annular insulating elastomer is stuck in wherein；Described insulating elastomer is a kind of
Acidproof, oxide etch elastomeric material or acidproof, oxide etch plastics.
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| CN201410022422.9A CN104795577B (en) | 2014-01-17 | 2014-01-17 | A kind of bipolar plates plate frame structure for large power redox flow cell heap |
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| CN201410022422.9A CN104795577B (en) | 2014-01-17 | 2014-01-17 | A kind of bipolar plates plate frame structure for large power redox flow cell heap |
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| CN106960968A (en) * | 2016-01-11 | 2017-07-18 | 上海电气集团股份有限公司 | A kind of integrated electrode |
| US10381674B2 (en) | 2016-04-07 | 2019-08-13 | Lockheed Martin Energy, Llc | High-throughput manufacturing processes for making electrochemical unit cells and electrochemical unit cells produced using the same |
| WO2018025406A1 (en) * | 2016-08-05 | 2018-02-08 | 昭和電工株式会社 | Redox flow battery |
| CN110048141A (en) * | 2019-04-22 | 2019-07-23 | 高岩 | A kind of electrode of liquid flow cell sheet frame runner and flow battery runner |
| CN112151827A (en) * | 2019-11-25 | 2020-12-29 | 国家电投集团科学技术研究院有限公司 | Battery unit of flow battery and flow battery with same |
| CN111446465B (en) * | 2020-04-08 | 2021-10-19 | 承德新新钒钛储能科技有限公司 | Integrated plate frame and electric pile of flow battery |
| CN112909280B (en) * | 2020-12-31 | 2022-02-11 | 大连融科储能技术发展有限公司 | Method for insulating surface edge of bipolar plate and application thereof |
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| JP5338218B2 (en) * | 2008-09-18 | 2013-11-13 | Ｓｍｃ株式会社 | Double rack and pinion type rocking device |
| JP5628063B2 (en) * | 2010-03-26 | 2014-11-19 | 富士フイルム株式会社 | Method for producing metal hydroxide fine particles for flame retardant |
| JP5477672B2 (en) * | 2011-03-31 | 2014-04-23 | 住友電気工業株式会社 | Cell frame for electrolyte flow type battery, cell stack for electrolyte flow type battery, and electrolyte flow type battery |
| CN202888318U (en) * | 2012-08-03 | 2013-04-17 | 上海神力科技有限公司 | Flow cell pile with external distribution pipe |
| CN203733887U (en) * | 2014-01-17 | 2014-07-23 | 上海神力科技有限公司 | Bipolar plate frame structure for high-power flow battery stack |
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