CN106654317A - Sealing structure for redox flow battery - Google Patents
Sealing structure for redox flow battery Download PDFInfo
- Publication number
- CN106654317A CN106654317A CN201710007346.8A CN201710007346A CN106654317A CN 106654317 A CN106654317 A CN 106654317A CN 201710007346 A CN201710007346 A CN 201710007346A CN 106654317 A CN106654317 A CN 106654317A
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- Prior art keywords
- sealing ring
- flow battery
- sheet frame
- sealing
- sealing structure
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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
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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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- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a sealing structure for a redox flow battery. The sealing structure comprises a positive electrode plate frame and a negative electrode plate frame which are arranged adjacently; a groove is formed in the connecting place between the positive electrode plate frame and the negative electrode plate frame; a square-shaped sealing ring is embedded in the groove; the free thickness of the sealing ring is slightly greater than the depth of the groove; the cross section of the sealing ring adopts a rightward-n-shaped opening structure, and the inner side of the sealing ring is used for enveloping a dual-polar plate; at least two protruding long water lines are correspondingly arranged on the two inner side surfaces and two outer side surfaces of the rightward-n-shaped opening; and the distance between the two water lines which are correspondingly arranged on the upper and lower two inner side surfaces is slightly less than the thickness of the dual-polar plate. The sealing structure provided by the invention can effectively prevent the shortcomings of electrolyte leakage and electrolyte mixing in the existing redox flow battery; and in addition, the sealing structure has the advantages of simple structure, high sealing reliability, good-quality material, feasible process, convenience in installation, stable performance and the like.
Description
Technical field
The invention belongs to flow battery technology field, and in particular to a kind of flow battery sealing structure.
Background technology
At present, sealing problem is the bottleneck for restricting flow battery service life.The pile of flow battery is by several batteries
Unit is constituted.In the B of prior art CN 102867974, the such as Fig. 6 of the sealing means between positive and negative electrode sheet frame and bipolar plates, one
Battery unit includes positive pole sheet frame 16, bipolar plates 15, electrode, ionic isolation film, negative pole sheet frame 18 and sealing ring 17 etc..Sealing ring
Among being embedded in the groove between sheet frame, the sealing ring adopts hardness and is made up of 60 degree of nitrile rubbers, and section adopts inverted U-shaped slot structure.
The upper and lower surface of inverted U-channel is respectively equipped with the ridge 13 and 14 being mutually staggered.The edge of bipolar plates load upper and lower two-layer ridge it
Between.Because the thickness of sealing ring is slightly larger than the total depth of groove, the distance of upper and lower ridge is slightly less than the thickness of bipolar plates in inverted U-channel
Degree, therefore after the assembling of several battery units, the pressure at right angle that both sides bolted end-plate applies is by sealing ring and sheet frame, bipolar plates
It is brought into close contact, realizes sealing.
Ridge up and down in sealing ring U-type groove is mutually staggered, and U-type groove outerplanar is sealed, and the pretightning force of needs is larger.And
Bipolar plates are typically by made by the material with carbon element of fragility, and above-mentioned fastening pressure easily makes the edge of bipolar plates produce larger bending
And shear stress.Pressure will make bipolar plates distortion even breakage occur when excessive, and then affect sealing property, or even directly result in
Whole battery pile is scrapped.
And because without location structure, sealing ring easy deviation position after placing in sheet frame groove, sealing ring occurs
After dislocation, the risk of leakage of electrolyte will be brought：One is that electrode material may be clipped between sealing ring and sheet frame, causes electrolysis
Liquid leaks outside；Two is the presence of gap between sealing ring and electrode, and partial electrolyte liquid can produce leakage, shadow in electrolyte without electrode
Ring stack performance.Additionally, the nitrile rubber for being adopted is not suitable for being worked in long-term sour environment, particularly in height
In warm, middle strong acid environment.
The content of the invention
The present invention proposes a kind of flow battery sealing structure, to avoid to solve the problems referred to above of the prior art
Bending and shear stress are produced to bipolar plates when sealing ring works, reduces the damaged possibility of bipolar plates, improve sealing structure
Reliability.
For achieving the above object, the present invention is employed the following technical solutions：
The present invention provides a kind of flow battery sealing structure, including the positive pole sheet frame and negative pole sheet frame that are disposed adjacent, institute
State positive pole sheet frame and negative pole sheet frame connection open up fluted, the sealing ring of " " font structure is embedded with the groove,
Depth of the free thickness of the sealing ring slightly larger than the groove；The cross section of the sealing ring is " Contraband " font opening knot
Structure, inner side is used for the double plate electrodes of envelope, at least 2 is correspondingly arranged on two medial surfaces and two lateral surfaces of " Contraband " font opening and is dashed forward
The long waterline for rising, is parallel to each other and is leveled up and down between each long waterline；Two are correspondingly arranged in respectively upper and lower two medial surface
On the distance between long waterline be slightly less than the thickness of bipolar plates；The positive pole sheet frame and negative pole sheet frame are twisted using bolted end-plate
Tightly, make the positive pole sheet frame, be brought into close contact between sealing ring, bipolar plates and negative pole sheet frame.
Further, in the flow battery sealing structure, the length and width size of the sealing ring is than the bipolar plates
Length and width undersized.
Further, in the flow battery sealing structure, in two medial surfaces of the sealing ring " Contraband " font opening
And/or two between adjacent two long waterlines on lateral surface, the auxiliary waterline of some vertical direction is disposed with.
Preferably as a preferred technical scheme, in the flow battery sealing structure, the sealing ring appearance
Several circular arc location structures are disposed with the corner location in face and four sides.
Preferably as a preferred technical scheme, in the flow battery sealing structure, the sealing ring it is interior
It is raised that side is provided with several.
Further, in the flow battery sealing structure, the sealing ring outer surface be provided with one it is recessed with described
The "convex" shaped plug of groove connection, the upper end of the "convex" shaped plug is provided with opening.
Further, in the flow battery sealing structure, the sealing ring is the integral type knot being an integrally-molded
Structure.
Preferably as a preferred technical scheme, in the flow battery sealing structure, the sealing ring is adopted
Ethylene propylene diene rubber or fluorubber material are made, and hardness is 60～75 degree of shore.
The present invention adopts above-mentioned technical proposal, compared with prior art, have the following technical effect that：
The flow battery sealing structure of the present invention, by the structure to sealing ring innovation is improved, and is further improved
Sealing property between sheet frame and bipolar plates, effectively prevent electrolyte leakage and the mixed liquid in flow battery；Sealing ring is adopted
With section for the upper and lower both sides of " Contraband " font structure projection waterline flush arrangement, bipolar plates at work mainly receive pressure at right angle,
Flecition is produced to bipolar plates when can prevent sealing ring from working, strengthens the safety in utilization (compression strength of material of bipolar plates
Typically greater than bending strength)；When especially needing secondary dismounting, bipolar plates can be reused, and reduce scrappage；The sealing
Enclose as overall structure, mould single injection-molded, low cost can be utilized after the completion of design；The groove being installed between sheet frame
When, it is only necessary to when gently the circular arc location structure of surrounding and corner is pressed into groove, installation does not need special instrument
With binding agent, it is simple and practical；Sealing ring is adapted to various acid or alkali environments using ethylene propylene diene rubber or fluorubber material,
Stable work in work in 10～100 DEG C of temperature ranges, ageing-resistant performance is excellent, and electrical insulating property is good, and the sexual valence of the material
Than high, sealing property can be increased substantially on the premise of cost is not improved.
In sum, the sealing reliability of sealing structure of the present invention is high, and its simple structure, material high-quality, technique can
Capable, easy for installation, stable performance, can effectively improve the security of flow battery, it is ensured that the stable and reliability of its function, have
Beneficial to the large-scale production of liquid stream battery stack.Therefore, have broad application prospects and good market potential.
Description of the drawings
Fig. 1 is a kind of mounting structure schematic diagram of flow battery sealing structure of the invention；
Fig. 2 is the overall structure diagram of sealing ring in a kind of flow battery sealing structure of the invention；
Fig. 3 is the local structural graph and corresponding cross section structure of sealing ring in a kind of flow battery sealing structure of the invention
Schematic diagram；
Fig. 4 is the structural representation of convex shape plug in a kind of flow battery sealing structure of the invention；
Fig. 5 is the concrete structure schematic diagram of plug in a kind of flow battery sealing structure of the invention；
Fig. 6 is the structural representation of flow battery sealing structure in prior art.
Specific embodiment
As shown in figure 1, the invention provides a kind of flow battery sealing structure, including the positive pole sheet frame 2 being disposed adjacent,
Negative pole sheet frame 3, electrode 4, battery lead plate 5, positive pole sheet frame 2 and the connection of negative pole sheet frame 3 open up and are embedded with fluted 6, groove 6
The sealing ring 1 of " " font structure, the free thickness of sealing ring 1 is slightly larger than the depth of groove 6；From the office of sealing ring shown in Fig. 3
It is interior as can be seen that the cross section of sealing ring 1 is " Contraband " font hatch frame in portion's structure chart and corresponding cross section structure schematic diagram
Side is used for the double plate electrode 5 of envelope, and at least 2 projections are correspondingly arranged on two medial surfaces and two lateral surfaces of " Contraband " font opening
Long waterline 9, is parallel to each other and is leveled up and down between each long waterline 9；Two length being correspondingly arranged in respectively on upper and lower two medial surface
The distance between waterline 9 is slightly less than the thickness of bipolar plates 5；After bolt on the end plate of battery pile two ends is tightened, positive pole sheet frame 2,
Realize being brought into close contact between sealing ring 1, bipolar plates 5 and negative pole sheet frame 3.
On the basis of above-mentioned technical proposal, in the flow battery sealing structure, the length and width size of sealing ring 1 is than double
The length and width undersized of pole plate 5, such sealing ring 1 can be brought into close contact after fit bipolar plates 5 with bipolar plates 5.
As a preferred technical scheme, as shown in figure 3, sealing ring 1 " Contraband " font opening two medial surfaces and/or
On two lateral surfaces between two adjacent long waterlines 9, some auxiliary waterlines 7 perpendicular to the direction of two long waterline 9 are disposed with, this is auxiliary
Help waterline 7 that the liquid leakage inside sealing ring can be prevented when contacting with pole plate frame 2 and negative pole sheet frame 3.
It is as Figure 2-3 the entirety and partial structural diagram of sealing ring 1 as a preferred technical scheme,
In the flow battery sealing structure, several circular arc positioning are disposed with the corner location of the outer surface of sealing ring 1 and four sides
Structure 8, the location structure 8 is pressed into groove 6 when sealing ring 1 is installed, and small deformation is produced, while so that sealing ring 1
The presence for having a pressure, pressure with groove 6 causes the possibility motion in vertical direction of sealing ring 1 to run into very big friction resistance
Power.The location structure 8 ensure that sealing ring 1 is in a suitable scope with the distance of the surrounding of groove 6, can fixed seal ring
1 horizontal level, while and sealing ring 1 can be allowed closely to be embedded in groove 6, and will not depart from easily in vertical direction.
As a preferred technical scheme, in the flow battery sealing structure, set on the inner side edge of sealing ring 1
There are several projections 10, the inner side of sealing ring 1 and the good contact of compressible electrodes 4 can be caused, further prevent internal leakage.
As the present invention a preferred technical scheme, in order to measure flow battery group in each pair monocell electricity
Pressure, bipolar plates 5 need an outwardly directed tap.Corresponding, sealing ring 1 needs the tap for increasing an opening
Sealing structure.As illustrated in figures 4-5, a "convex" shaped plug 11 connected with groove 6 is provided with the outer surface of sealing ring 1,
The upper end of "convex" shaped plug 11 is provided with opening 12.Double-deck "convex" shaped plug 11 is the sealing for the tap of double plate electrodes 5
And specially design；Opening 12 is provided with the top of "convex" shaped structure plug 11, to allow the tap of double plate electrodes 5 to pass through plug
11 stretch out from opening 12, and width and the height of opening 12 are slightly larger than on double plate electrodes 5 width and thickness at tap.
As a preferred technical scheme, as shown in Fig. 2 sealing ring 1 is the one being an integrally-molded using mould
Formula structure, can effectively reduce production cost.Additionally, in order to be adapted to long-term high temperature and acid working environment, sealing ring is adopted
With ethylene propylene diene rubber or fluorubber material, hardness is 60～75 degree of shore, can in 10～100 DEG C of temperature ranges service behaviour
Stable, ageing-resistant performance is excellent, and electrical insulating property is good, and the cost performance of the material is high, can be in the premise for not improving cost
Under increase substantially sealing property.
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
As Figure 1-3, the material of the sealing ring 1 of the present embodiment one selects to be ethylene propylene diene rubber that hardness is to embodiment one
60～75 degree of shore；Sealing ring 1 is " " font overall structure, is molded by Shooting Technique, and its free thickness is slightly larger than on sheet frame
The depth of groove 6, undersized of the length and width size inside sealing ring 1 than bipolar plates 5.As shown in Fig. 1 or 3, the sealing ring 1
Section is " Contraband " font hatch frame, and opening inner side is used for the double plate electrode 5 of envelope, upper and lower two medial surface of opening and two outsides totally 4
It is provided with the long waterline 9 of 8 (4 rows 2 arrange) projections on individual face altogether, the position of the long waterline 9 of two row is leveled up and down.It is upper and lower in sealing ring 1
Between two long waterlines 9 of lateral surface, the auxiliary waterline 7 of some vertical direction is set, the liquid inside sealing ring 1 can be prevented
Body is leaked.Be leveled up and down cloth between long waterline 9 on two medial surfaces and each face of two lateral surfaces of sealing ring 1 " Contraband " font opening
Put so that when sealing ring 1 works bipolar plates 5 are produced with the extruding of vertical direction rather than is bent or shear action.Due to bipolar
The compression strength of the material of plate 5 is produced by the way of long waterline 9 using arranging more than its bending strength and shearing strength to bipolar plates 5
Damage may be less, improve the reliability of sealing.
Additionally, being provided with several circular arc location structures 8 in the corner of sealing ring 1 and four sides.So, the length of sealing ring 1
Size of the overall dimension on cross direction slightly larger than sheet frame upper groove 6.
Additionally, as shown in figure 3, the inner side edge of sealing ring 1 is provided with several projections 10, the inner side of sealing ring 1 can be caused
With the good contact of compressible electrodes 4, internal leakage is further prevented.
During installation, first sealing ring 1 is gently drawn outward in the horizontal direction, bipolar plates 5 of closing are covered, using the screen resilience of rubber
The inner side that sealing ring 1 is open is set to be brought into close contact with bipolar plates 5.Then, sealing ring 1 is first put into sheet frame groove 6 on one side, is slightly exerted oneself
The circular arc location structure 8 of this side is extruded, sealing ring 1 is then laid flat, opposite side is pressed into sheet frame groove 6.Finally each is justified
Arc location structure 8 is all pressed into groove 6, flattens sealing ring 1 so as to suitable with the distance of the surrounding of sheet frame groove 6.Due to sealing ring
1 has in the horizontal direction mutual pressure with groove 6, and sealing ring 1 can be closely embedded in groove 6, and will not be light in vertical direction
Easily depart from.
After all plate-and-frame module installation blending bolts of pile tighten end plate, the pressure that vertical direction transmission comes will be close
Seal 1 is compressed, and will be brought into close contact between sealing ring 1 and bipolar plates 5, sheet frame 2 and 3, realizes the excellent sealing to electrolyte.
Jing tests adopt the 2kW-50 of the sealing structure of the present embodiment one to liquid stream battery stack, after assembling through 120kPa gas
Pressure test, No leakage phenomenon；And charge and discharge cycles test more than 180 days is carried out in energy-storage system, there is not electrolyte and show
As.Above example proves that the sealing structure of the embodiment one can be effectively ensured the safety and reliability of flow battery.
As illustrated in figures 4-5, the material of the sealing ring 1 of the present embodiment two selects to be fluorubber that hardness is shore 60 to embodiment two
～75 degree.Sealing ring 1 is " " font structure, and the minor face middle part of sealing ring 1 is provided with the sealing structure tap of bipolar plates tap
11, the sealing ring 1 is overall to be molded by Shooting Technique, depth of its free thickness slightly larger than sheet frame upper groove 6；In the sealing ring 1
Undersized of the length and width size in portion than bipolar plates 5；The section of sealing ring 1 is " Contraband " font structure, and opening inner side is used for envelope
Double plate electrodes 5, upper and lower two medial surface of opening and two outsides are provided with altogether the long waterline 9 of 8 (4 rows 2 arrange) projections totally on 4 faces, and two
The position for arranging long waterline 9 is leveled up and down.Between two long waterlines 9 on upper and lower two lateral surface of sealing ring 1, some are arranged
The auxiliary waterline 7 of vertical direction, the arrangement of auxiliary waterline 7 can prevent the liquid leakage inside sealing ring 1.Length on each face
Waterline about 9 correspond to flush arrangement so that sealing ring work when to bipolar plates 5 produce vertical direction extruding rather than bend or
Shear action.Because the compression strength of the material of bipolar plates 5 is more than bending resistance and shearing strength, this arrangement pair of long waterline 9
The damage that bipolar plates 5 are produced may be less, improves the reliability of sealing.The corner of sealing ring 1 is provided with several circles with four sides
Arc location structure 8, so, need to cause the overall dimension on the long cross direction of sealing ring 1 slightly larger than the size of sheet frame upper groove 6.
During installation, the tap of bipolar plates 5 is first carefully passed the opening 12 of sealing ring "convex" shaped structure plug 11, by this
The sealing ring set of one minor face shares bipolar plates 5；Then 1 liang of long side of sealing ring and another minor face are gently drawn outward, set closes whole
Bipolar plates 5, make the inner side that sealing ring 1 is open be brought into close contact with bipolar plates 5 using the screen resilience of rubber.Then, by sealing ring 1 one
Side is first put into sheet frame groove 6, slightly firmly extrudes the circular arc location structure 8 of this side, sealing ring 1 is then laid flat, by opposite side
It is pressed into sheet frame groove 6.Finally each circular arc location structure 8 is all pressed into groove 6, sealing ring 1 is flattened, sealing ring 1 is made
Four sides are suitable with the distance of the surrounding of sheet frame groove 6.It is close because sealing ring 1 and sheet frame groove 6 have in the horizontal direction mutual pressure
Seal 1 can be closely embedded in groove 6 will not be departed from easily in vertical direction.
After all plate-and-frame module installation blending bolts of pile tighten end plate, the pressure that vertical direction transmission comes will be close
Seal 1 is compressed, and will be brought into close contact between sealing ring 1 and bipolar plates 5, sheet frame 2 and 3, realizes the excellent sealing to electrolyte.
Jing tests adopt the 2kW-40 of the sealing structure of the present embodiment two to liquid stream battery stack, after assembling through 120kPa gas
Pressure test, No leakage phenomenon；Charge and discharge cycles are carried out in energy-storage system to test more than 150 days, electrolyte phenomenon do not occur.
Above example proves that the sealing structure of the present embodiment two can be effectively ensured the safety and reliability of flow battery.
In sum, the flow battery sealing structure that the present invention is provided, can efficiently solve sealing ring in prior art
Defect in structure, it is to avoid bending and shear stress are produced to bipolar plates when sealing ring works, reduce bipolar plates it is damaged can
Energy property, improves the reliability of sealing structure；Positioning and fixation problem of the sealing ring in sheet frame groove is solved, interior leakage is prevented,
Increase easy self positioning structure；The sealing ring material for being adopted is more suitable for high temperature and strong acid environment.And its simple structure,
Material high-quality, feasible process, easy for installation, stable performance, are conducive to the large-scale production of liquid stream battery stack, should with wide
With prospect and good market potential.
The specific embodiment of the present invention has been described in detail above, but it is intended only as example, and the present invention is not limited
It is formed on particular embodiments described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and
Replacement is also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, all should cover within the scope of the invention.
Claims (8)
1. a kind of flow battery sealing structure, it is characterised in that described including the positive pole sheet frame and negative pole sheet frame that are disposed adjacent
Positive pole sheet frame and negative pole sheet frame connection open up fluted, and the sealing ring of " " font structure, institute are embedded with the groove
State the depth of the free thickness slightly larger than the groove of sealing ring；The cross section of the sealing ring is " Contraband " font hatch frame,
Inner side is correspondingly arranged at least 2 projections for the double plate electrodes of envelope on two medial surfaces and two lateral surfaces of " Contraband " font opening
Long waterline, be parallel to each other and be leveled up and down between each long waterline；Two are correspondingly arranged in respectively on upper and lower two medial surface
The distance between long waterline be slightly less than the thickness of bipolar plates；The positive pole sheet frame and negative pole sheet frame are tightened using bolted end-plate,
Make the positive pole sheet frame, be brought into close contact between sealing ring, bipolar plates and negative pole sheet frame.
2. flow battery sealing structure according to claim 1, it is characterised in that the length and width size ratio of the sealing ring
The length and width undersized of the bipolar plates.
3. flow battery sealing structure according to claim 1, it is characterised in that open in the sealing ring " Contraband " font
On two medial surfaces and/or two lateral surfaces of mouth between two adjacent long waterlines, the auxiliary waterline of some vertical direction is disposed with.
4. flow battery sealing structure according to claim 1, it is characterised in that the corner of the sealing ring outer surface
Several circular arc location structures are disposed with position and four sides.
5. flow battery sealing structure according to claim 1, it is characterised in that cloth on the inner side edge of the sealing ring
It is equipped with several raised.
6. flow battery sealing structure according to claim 1, it is characterised in that the sealing ring outer surface is provided with
One "convex" shaped plug connected with the groove, the upper end of the "convex" shaped plug is provided with opening.
7. flow battery sealing structure according to claim 1, it is characterised in that the sealing ring is for integral molded plastic
Into integral structure.
8. flow battery sealing structure according to claim 1, it is characterised in that the sealing ring adopts EPDM
Rubber or fluorubber material are made, and hardness is 60～75 degree of shore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007346.8A CN106654317A (en) | 2017-01-05 | 2017-01-05 | Sealing structure for redox flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007346.8A CN106654317A (en) | 2017-01-05 | 2017-01-05 | Sealing structure for redox flow battery |
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| Publication Number | Publication Date |
|---|---|
| CN106654317A true CN106654317A (en) | 2017-05-10 |
Family
ID=58842646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710007346.8A Pending CN106654317A (en) | 2017-01-05 | 2017-01-05 | Sealing structure for redox flow battery |
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| CN (1) | CN106654317A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461776A (en) * | 2017-12-29 | 2018-08-28 | 上海神力科技有限公司 | A kind of fuel cell pile gasket and preparation method thereof |
| CN109616686A (en) * | 2018-12-11 | 2019-04-12 | 中国科学院大连化学物理研究所 | It is a kind of to improve the fuel cell seal gasket construction for resisting sliding ability |
| 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 |
| CN112290046A (en) * | 2020-09-21 | 2021-01-29 | 国家电投集团科学技术研究院有限公司 | Fluid plate frame for flow battery |
| CN112993310A (en) * | 2019-12-18 | 2021-06-18 | 坤厚储能科技有限公司 | Battery flow passage sealing structure and application thereof |
| CN114695913A (en) * | 2020-12-30 | 2022-07-01 | 上海德迩新能源技术有限公司 | Sealing ring assembly, assembling method of sealing ring and jig |
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| CN102867974A (en) * | 2012-09-26 | 2013-01-09 | 贵州省岑巩县银峰矿业有限公司长沙分公司 | Sealing structure and electric pile of liquid flow battery |
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| 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 |
| CN112993310A (en) * | 2019-12-18 | 2021-06-18 | 坤厚储能科技有限公司 | Battery flow passage sealing structure and application thereof |
| CN112290046A (en) * | 2020-09-21 | 2021-01-29 | 国家电投集团科学技术研究院有限公司 | Fluid plate frame for flow battery |
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