CN104409761B - A kind of liquid stream battery stack and its compressing method - Google Patents
A kind of liquid stream battery stack and its compressing method Download PDFInfo
- Publication number
- CN104409761B CN104409761B CN201410713705.8A CN201410713705A CN104409761B CN 104409761 B CN104409761 B CN 104409761B CN 201410713705 A CN201410713705 A CN 201410713705A CN 104409761 B CN104409761 B CN 104409761B
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- China
- Prior art keywords
- liquid flow
- flow frame
- battery
- steel plate
- barrier film
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Classifications
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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
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- 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
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
-
- 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
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- 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
- H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The present invention relates to flow battery field, specially a kind of new liquid stream battery stack and its compressing method.The new liquid stream battery stack includes multiple (multiple finger two or more) collectors, multiple electrodes, multiple liquid flow frames, multiple barrier films and multiple reinforcement steel plates composition, the battery pile includes multiple cell basic units, and each elementary cell is clamped liquid flow frame and barrier film with bolt by the way of reinforcement steel plate is combined with liquid flow frame.Passed through using bolt assembly be distributed in strengthen the through hole of steel plate clamp with self-contained battery liquid flow frame and barrier film, become an elementary cell, whole battery pile is made up of several elementary cells overlapping.The present invention can simply and easily assembled battery heap, simultaneously effective solve the problems, such as the leakage between battery pile elementary cell.
Description
Technical field
The present invention relates to flow battery field, specially a kind of new liquid stream battery stack and its compressing method.
Background technology
In the prior art, liquid flow frame, collector and barrier film are formed by multigroup series connection in battery pile, and they are by fastening
Part is pressed together realization sealing, and pressure distribution is uneven between this has resulted in single group, so as to there is the hidden trouble of leakage.
Meanwhile, after prolonged, some deformation can all occur for liquid flow frame and seal, cause local or most of leakage.
In addition, the compression mode of battery pile is generally manually to tighten or hydraulic press compression now, there is certain limitation in this
Property.Artificial tighten can cause discontinuity in compaction process, and inside misplaces, and there is the hidden danger of liquid leakage.And hydraulic press pressure
Tight cost is higher, and battery pile rigging position and limitations are big.
The content of the invention
It is an object of the invention to provide a kind of new liquid stream battery stack and its compressing method, change existing liquid stream battery stack
Sealing structure and compress mode, the phenomenon such as leakage, liquid leakage to solve battery pile, while realizing easy and effective group of battery pile
Dress.
The technical scheme is that：
A kind of new liquid stream battery stack, including multiple collectors, multiple electrodes, multiple liquid flow frames, multiple barrier films and multiple
Strengthen steel plate, the battery pile includes multiple cell basic units, and each elementary cell is combined using steel plate is strengthened with liquid flow frame
Mode bolt liquid flow frame and barrier film are clamped.
Described new liquid stream battery stack, rectangular recess is surrounded by liquid flow frame flow passage side, and steel plate is strengthened for placing；
Depth of groove is consistent with strengthening steel plate thickness, strengthens steel plate and is alternately laid out using big aperture, strengthens the big aperture and liquid of steel plate
The hole flowed on frame is corresponding, and the macropore on macropore, liquid flow frame is used in liquid flow frame relevant position with strengthening the macropore on steel plate
Diameter is identical.
Described new liquid stream battery stack, strengthen steel plate through hole with external position be provided with rectangular recess, depth of groove with it is U-shaped
Clamp wall thickness is consistent.
Described new liquid stream battery stack, each elementary cell is by 2 liquid flow frames, 1 barrier film and 2 reinforcement steel plates
Composition, will strengthen steel plate and is stacked together with liquid flow frame, added in the middle of latter two right liquid flow frame flow passage side back side outside barrier film, barrier film
Shape size is consistent with liquid flow frame appearance and size, and clear size of opening is consistent with clear size of opening size and location in liquid flow frame, with mutually fitting
The bolt of conjunction pierces into through hole attaching nut and tightens liquid flow frame and barrier film for an elementary cell.
Described new liquid stream battery stack, each elementary cell surrounds surrounding using U-shaped clamp, while on U-shaped clamp
Equipped with four fixed ears, fixed ear center is the circular hole of certain size, and the thickness of U-shaped clamp is superimposed thickness with 2 liquid flow frames
Unanimously；U-shaped clamp material is one kind or other metal materials in PP, PE or PVC.
Described new liquid stream battery stack, have in each collector both sides on two thin backing plates, backing plate lead to the hole site with
Liquid flow frame is consistent, and the rectangular through-hole consistent with electrode appearance and size is left in centre position, and backing plate and collector are in both sides
Face is equipped with the fixation ear consistent with U-shaped clamp, is positioned elementary cell with collector by fixed ear.
Described new liquid stream battery stack, battery pile is all-vanadium flow battery heap.
A kind of compressing method of new liquid stream battery stack, comprises the following steps：
（1）Put the electrodes into the cell internal liquid flow frame fixed；
（2）Order according to backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate is attached to electricity one by one successively
In the casing of pond, by four cylindrical type guide rails for penetrating fixed ear on casing, collector, battery unit and case are fixed with this
The distance between internal portion three；
（3）It is added in the order described above after required group number, battery pile is encapsulated with the side with steering-wheel type,
Compressed.
There is four cylindrical guides, particular location and U in the compressing method of described new liquid stream battery stack, Battery case
Fixation ear on molding box folder is consistent, and insulation protection is carried out using heat-shrink tube on cylindrical guide.
The compressing method of described new liquid stream battery stack, compresses and screws power by what the screw rod rotation of steering-wheel type was produced
Encapsulation.
Advantages of the present invention and beneficial effect are：
1st, novel battery heap of the present invention liquid flow frame and barrier film etc. are fixed together by using bolt to be formed one it is substantially single
Member, it is ensured that the independence of each elementary cell, can overcome the problem of pressure distribution is uneven between single group.
2nd, novel battery heap of the present invention includes multiple elementary cells, each elementary cell by strengthen steel plate by liquid flow frame and
Barrier film is fixed up with bolt, and the hidden danger that steel plate solves liquid flow frame deformation is strengthened by increasing.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the exploded view of basic battery unit according to an embodiment of the invention；
Fig. 2 is assembling schematic diagram according to an embodiment of the invention；
Fig. 3 is compaction process schematic diagram according to an embodiment of the invention.
In figure, 1. liquid flow frame；2. steel plate is strengthened；3. barrier film；4. electrode；5. groove；6. U-shaped clamp；7. collector；8. pad
Plate；9. guide rail is fixed；10. case lid；Push pedal；Casing；Steering wheel；Fixed ear.
Embodiment
In a specific embodiment, new liquid stream battery stack of the invention, including it is multiple collectors, multiple electrodes, multiple
Liquid flow frame, multiple barrier films and multiple reinforcement steel plates composition, the battery pile include multiple cell basic units, each elementary cell
Liquid flow frame and barrier film are clamped with bolt by the way of reinforcement steel plate is combined with liquid flow frame, multiple finger two or more.
Wherein, rectangular recess is surrounded by liquid flow frame flow passage side, steel plate is strengthened for placing.Depth of groove is with strengthening steel
Plate thickness is consistent, strengthens steel plate and is alternately laid out using big aperture, liquid flow frame uses macropore in relevant position.Strengthening steel plate
Through hole is provided with rectangular recess with external position, and depth of groove is consistent with U-shaped clamp wall thickness.Each elementary cell is by 2 liquid streams
Frame, 1 barrier film and 2 strengthen steel plate composition, will strengthen steel plate and are stacked together with liquid flow frame, latter two right liquid flow frame flow passage side
Barrier film is added in the middle of the back side, barrier film appearance and size is consistent with liquid flow frame appearance and size, and clear size of opening and liquid flow frame clear size of opening are big
It is small consistent with position, pierce into through hole attaching nut with the bolt matched and tighten liquid flow frame and barrier film for an elementary cell.
Each elementary cell surrounds surrounding using U-shaped clamp, meanwhile, equipped with four fixed ears on U-shaped clamp, fixed ear center is
The circular hole of certain size, the thickness of U-shaped clamp is consistent with 2 liquid flow frame superposition thickness.Clamp material can for PP, PE or
One kind or other metal materials in PVC.There are lead to the hole site and liquid on two thin backing plates, backing plate in each collector both sides
Flow frame consistent, the rectangular through-hole consistent with electrode appearance and size is left in centre position, and backing plate and collector are in two sides
The fixation ear consistent with U-shaped clamp is equipped with, is positioned elementary cell with collector by fixed ear.
In a specific embodiment, the compressing method of liquid stream battery stack of the present invention, is concretely comprised the following steps：
（1）Put the electrodes into the cell internal liquid flow frame fixed；
（2）Order according to backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate is attached to electricity one by one successively
In the casing of pond, by four cylindrical type guide rails for penetrating fixed ear on casing, collector, battery unit and case are fixed with this
The distance between internal portion three.
（3）It is added in the order described above after required group number, battery pile is encapsulated with the side with steering-wheel type,
Compressed, the battery pile is all-vanadium flow battery heap.
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is further elaborated on.
As shown in figure 1, according to the basic battery unit exploded view of a specific embodiment of the invention, in the stream of liquid flow frame 1.
Provided with groove 5., 5. groove is used for and strengthens steel plate and 2. coordinate for road side.Liquid flow frame thickness is 4mm, and 5. depth is 2mm to groove,
The groove 5. interior through hole for being evenly distributed with Φ 18mm.Strengthening steel plate, 2. surrounding has the through hole concentric with liquid flow frame, but through hole is
Size is alternately distributed, and through-hole diameter is respectively Φ 18mm and Φ 10mm.Strengthening steel plate, 2. surrounding through hole is provided with square with exterior domain
Connected in star, steel plate thickness is 2mm, and rectangular recess depth is 1mm, it will be seen from figure 1 that will be with liquid flow frame size and lead to the hole site
3. consistent barrier film is placed between two liquid flow frames, will be strengthened steel plate and is 2. 1. stacked together with liquid flow frame, by matching
Bolt pierce into screw attaching nut and be fixed.6. then U-shaped clamp surrounded to the liquid flow frame fixed 1., U-shaped clamp is 6.
Wall thickness is 1mm, and 6. through-hole diameter is Φ 18mm to U-shaped clamp on the fixation ear of side.Finally, electrode is put into liquid flow frame is 1. interior
4., such a basic battery unit is just completed.
As shown in Fig. 2 according to the installation diagram of a specific embodiment of the invention, in Battery case there are four cylinders to lead
Rail 9., particular location and U-shaped clamp 6. on fixation ear it is consistent, cylindrical guide 9. on insulation guarantor carried out using heat-shrink tube
Shield.As can be seen that only need to by backing plate 8., collector 7., backing plate elementary cell 8., in Fig. 1, backing plate 8., collector 7., backing plate
8. during 9. order penetrates into four in casing cylindrical types fixation guide rails successively, after group number needed for being added to, by Fig. 3
The push pedal with steering wheel is sealed up in outermost, the power that screws produced by rotating steering wheel drives push pedal campaign pair
Battery pile is sealed, you can complete the sealing of battery pile, finally 10. completes encapsulation, described clamping side plus case lid at top
Formula is to rotate the power that screws produced by the screw rod of steering-wheel type to play sealed effect.
In the present invention, by the way that liquid flow frame and barrier film are constituted into an elementary cell, in the presence of fastener, Ke Yishi
Existing sealing between liquid flow frame and barrier film, so as to avoid the infiltration problem of electrolyte at elevated pressures.Moreover, liquid flow frame and reinforcement
Steel plate is combined using aspectant mode, hence it is evident that can reduce local pressure, it is to avoid the deformation of liquid flow frame, so as to avoid leakage
Risk.
Embodiment result shows that new liquid stream battery stack of the invention passes through to be distributed in using bolt assembly strengthens the logical of steel plate
Hole come clamp with self-contained battery liquid flow frame and barrier film, become an elementary cell, whole battery pile is substantially single by several
Member overlapping composition.Battery pile base can simultaneously effective be solved with easy and effective, convenient assembled battery heap according to the inventive method
Leakage problem between this unit.
The section Example of the present invention is these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., all should be within protection scope of the present invention.
Claims (4)
1. a kind of compressing method of liquid stream battery stack, liquid stream battery stack include multiple collectors, multiple electrodes, multiple liquid flow frames,
Multiple barrier films and multiple reinforcement steel plates, it is characterised in that the battery pile includes multiple cell basic units, each elementary cell
Liquid flow frame and barrier film are clamped with bolt by the way of reinforcement steel plate is combined with liquid flow frame；
Rectangular recess is surrounded by liquid flow frame flow passage side, steel plate is strengthened for placing；Depth of groove is with strengthening steel plate thickness one
Cause, strengthen steel plate and be alternately laid out using big aperture, the big aperture for strengthening steel plate is corresponding with the hole on liquid flow frame, in liquid flow frame
Relevant position uses the macropore on macropore, liquid flow frame identical with strengthening the diameter macropores on steel plate；
Strengthening steel plate through hole with external position provided with rectangular recess, depth of groove is consistent with U-shaped clamp wall thickness；
Each elementary cell is strengthened steel plate by 2 liquid flow frames, 1 barrier film and 2 and constituted, and will strengthen steel plate and is folded with liquid flow frame
Put together, barrier film, barrier film appearance and size and liquid flow frame appearance and size one are added in the middle of latter two right liquid flow frame flow passage side back side
Cause, clear size of opening is consistent with clear size of opening size and location in liquid flow frame, and through hole attaching nut is pierced into the bolt matched
Liquid flow frame and barrier film are tightened as an elementary cell；
Each elementary cell surrounds surrounding using U-shaped clamp, while equipped with four fixed ears on U-shaped clamp, fixed ear center
It is the circular hole of certain size, the thickness of U-shaped clamp is superimposed consistency of thickness with 2 liquid flow frames；U-shaped clamp material be PP, PE or
One kind or other metal materials in person PVC；
Have lead to the hole site on two thin backing plates, backing plate consistent with liquid flow frame in each collector both sides, centre position leave with
The consistent rectangular through-hole of electrode appearance and size, and backing plate and collector are equipped with consistent with U-shaped clamp consolidate in two sides
Determine ear, positioned elementary cell with collector by fixed ear；
The compressing method of liquid stream battery stack, comprises the following steps：
（1）Put the electrodes into the cell internal liquid flow frame fixed；
（2）Order according to backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate is attached to battery case one by one successively
In vivo, by four cylindrical type guide rails for penetrating fixed ear on casing, fixed with this in collector, battery unit and casing
The distance between portion three；
（3）It is added in the order described above after required group number, battery pile is encapsulated with the side with steering-wheel type, carries out
Compress.
2. according to the compressing method of the liquid stream battery stack described in claim 1, it is characterised in that have four circles in Battery case
Post guide rail, particular location is consistent with the fixation ear on U-shaped clamp, and insulation protection is carried out using heat-shrink tube on cylindrical guide.
3. according to the compressing method of the liquid stream battery stack described in claim 1, it is characterised in that compress the spiral shell by steering-wheel type
Bar rotates the power that screws produced and encapsulated.
4. the compressing method of liquid stream battery stack according to claim 1, it is characterised in that battery pile is all-vanadium flow battery
Heap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713705.8A CN104409761B (en) | 2014-11-28 | 2014-11-28 | A kind of liquid stream battery stack and its compressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713705.8A CN104409761B (en) | 2014-11-28 | 2014-11-28 | A kind of liquid stream battery stack and its compressing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104409761A CN104409761A (en) | 2015-03-11 |
| CN104409761B true CN104409761B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410713705.8A Active CN104409761B (en) | 2014-11-28 | 2014-11-28 | A kind of liquid stream battery stack and its compressing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047945A (en) * | 2015-06-10 | 2015-11-11 | 中国东方电气集团有限公司 | Electrode module for flow battery, preparation method of electrode module and battery stack containing electrode module |
| CN106099154B (en) * | 2016-08-25 | 2018-11-06 | 中国科学院金属研究所 | A kind of serialization battery pack structure device |
| CN107196021B (en) * | 2017-05-18 | 2023-06-23 | 安徽乾源新能源科技有限公司 | Electrode pressing plate of zinc-air battery |
| CN117096408B (en) * | 2023-10-20 | 2024-01-16 | 博鼎储能科技(山东)有限公司 | Liquid flow energy storage battery structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814618B (en) * | 2009-02-23 | 2012-05-30 | 北京金能燃料电池有限公司 | Flow battery |
| CN101656326B (en) * | 2009-09-27 | 2012-02-29 | 湖南维邦新能源有限公司 | Redox flow cell stack |
| CN102148389A (en) * | 2010-02-10 | 2011-08-10 | 大连融科储能技术发展有限公司 | Structure of redox flow battery |
| CN102195009A (en) * | 2010-03-10 | 2011-09-21 | 北京普能世纪科技有限公司 | Locking device for liquid stream cell stack |
| EP2528145A1 (en) * | 2011-05-25 | 2012-11-28 | NIM Energy | Power and hydrogen generator |
| CN103647101B (en) * | 2013-12-06 | 2015-09-23 | 中国东方电气集团有限公司 | Flow battery |
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