CN104409761A - Novel flow cell stack and pressing method thereof - Google Patents
Novel flow cell stack and pressing method thereof Download PDFInfo
- Publication number
- CN104409761A CN104409761A CN201410713705.8A CN201410713705A CN104409761A CN 104409761 A CN104409761 A CN 104409761A CN 201410713705 A CN201410713705 A CN 201410713705A CN 104409761 A CN104409761 A CN 104409761A
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- Prior art keywords
- liquid flow
- flow frame
- steel plate
- consistent
- collector
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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
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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)
- Primary Cells (AREA)
Abstract
The invention relates to the field of flow cells, in particular to a novel flow cell stack and a pressing method thereof. The novel flow cell stack comprises a plurality of (two or more than two) current collectors, a plurality of electrodes, a plurality of flow frames, a plurality of membranes and a plurality of strengthening steel plates, and also comprises a plurality of cell elementary units, wherein each elementary unit adopts the structure that the flow frames and the membranes are clamped by bolts in a combined manner of the strengthening steel plates and the flow frames. The bolt assemblies penetrate through through-holes uniformly distributed in the strengthening steel plates to clamp and fix the flow frames and the membranes of the cell to form one elementary unit, and the whole cell stack is formed by superposing multiple elementary units. The method can be used for simply and conveniently assembling the cell stack, and meanwhile, the method can be used for effectively solving the problem of the leakage among the elementary units of the cell stack.
Description
Technical field
The present invention relates to flow battery field, be specially a kind of novel liquid stream battery stack and compressing method thereof.
Background technology
In the prior art, in battery pile, liquid flow frame, collector and barrier film are formed by many group series connection, and they are pressed together by securing member and realize sealing, and it is uneven that this just causes pressure distribution between single group, thus there is the hidden trouble of leakage.Meanwhile, after prolonged, all can there are some deformation in liquid flow frame and seal, causes local or most of leakage.
In addition, the compression mode of present battery pile mostly is manually tightens or hydraulic press compression, and this has some limitations.Manually tighten and can cause discontinuity in compaction process, inside misplaces, and there is the hidden danger of string liquid.And hydraulic press compress cost higher, and battery pile rigging position and limitations large.
Summary of the invention
The object of the present invention is to provide a kind of novel liquid stream battery stack and compressing method thereof, change hermetically-sealed construction and the compression mode of existing liquid stream battery stack, to solve the phenomenon such as leakage, string liquid of battery pile, realize the simple effectively assembling of battery pile simultaneously.
Technical scheme of the present invention is:
A kind of novel liquid stream battery stack, comprise multiple collector, multiple electrode, multiple liquid flow frame, multiple barrier film and multiple reinforcement steel plate, described battery pile comprises multiple cell basic unit, and liquid flow frame and barrier film clamp by the mode bolt that each elementary cell adopts reinforcement steel plate and liquid flow frame to combine.
Described novel liquid stream battery stack, is provided with rectangular recess in liquid flow frame flow passage side surrounding, for placing reinforcement steel plate; Depth of groove is consistent with reinforcement steel plate thickness, strengthen the layout that steel plate adopts large aperture to replace, the large aperture strengthening steel plate is corresponding with the hole on liquid flow frame, all adopts macropore in liquid flow frame relevant position, and the macropore on liquid flow frame is identical with the diameter macropores strengthened on steel plate.
Described novel liquid stream battery stack, be provided with rectangular recess at reinforcement steel plate through hole with external position, depth of groove is consistent with U-shaped clamp wall thickness.
Described novel liquid stream battery stack, each elementary cell is made up of 2 liquid flow frames, 1 barrier film and 2 reinforcement steel plates, reinforcement steel plate and liquid flow frame are stacked together, so add barrier film in the middle of latter two liquid flow frame flow passage side back side, barrier film overall dimension is consistent with liquid flow frame overall dimension, clear size of opening is consistent with clear size of opening size in liquid flow frame and position, and piercing into that liquid flow frame and barrier film tighten by through hole attaching nut with matched bolt is an elementary cell.
Described novel liquid stream battery stack, each elementary cell adopts U-shaped clamp to surround surrounding, and U-shaped clamp is furnished with four fixing ears, fixing ear center is the circular hole of certain size, and the thickness of U-shaped clamp superposes consistency of thickness with 2 liquid flow frames simultaneously; U-shaped clamp material is one in PP, PE or PVC or other metal materials.
Described novel liquid stream battery stack, two thin backing plates are all had in each collector both sides, on backing plate, lead to the hole site is consistent with liquid flow frame, the rectangular through-hole consistent with electrode overall dimension is left in centre position, and backing plate and collector are equipped with the fixing ear consistent with U-shaped clamp in two sides, elementary cell and collector are positioned by fixing ear.
Described novel liquid stream battery stack, battery pile is all-vanadium flow battery heap.
A compressing method for novel liquid stream battery stack, comprises the following steps:
(1) electrode is put in the cell internal liquid flow frame fixed;
(2) install to one by one successively in Battery case according to the order of backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate, by fixing ear being penetrated four column type guide rails on casing, fix collector, distance between battery unit and box house three with this;
(3), after being added to group number required according to said sequence, carry out packaged battery heap with the side with steering-wheel type, compress.
The compressing method of described novel liquid stream battery stack, has four cylindrical guides in Battery case, particular location is consistent with the fixing ear on U-shaped clamp, cylindrical guide adopts heat-shrink tube carry out insulation protection.
The compressing method of described novel liquid stream battery stack, compresses the power that the screws encapsulation produced by the bolt rotary of steering-wheel type.
Advantage of the present invention and beneficial effect are:
1, novel battery of the present invention heap is by the formation elementary cell that liquid flow frame and barrier film etc. to be fixed together with bolt, ensures the independence of each elementary cell, can overcome the problem that between single group, pressure distribution is uneven.
2, novel battery heap of the present invention comprises multiple elementary cell, and liquid flow frame and barrier film bolt are fixed up by reinforcement steel plate by each elementary cell, strengthens by increasing the hidden danger that steel plate solves liquid flow frame deformation.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the exploded view of basic according to an embodiment of the invention battery unit;
Fig. 2 assembles 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. backing plate; 9. fixed guide; 10. case lid;
push pedal;
casing;
steering wheel;
fixing ear.
Embodiment
In a specific embodiment, novel liquid stream battery stack of the present invention, comprise multiple collector, multiple electrode, multiple liquid flow frame, multiple barrier film and multiple reinforcement steel plate composition, described battery pile comprises multiple cell basic unit, liquid flow frame and barrier film clamp by the mode bolt that each elementary cell adopts reinforcement steel plate and liquid flow frame to combine, multiple finger two or more.
Wherein, be provided with rectangular recess in liquid flow frame flow passage side surrounding, for placing reinforcement steel plate.Depth of groove is consistent with reinforcement steel plate thickness, and strengthen the layout that steel plate adopts large aperture to replace, liquid flow frame all adopts macropore in relevant position.Be provided with rectangular recess at reinforcement steel plate through hole with external position, depth of groove is consistent with U-shaped clamp wall thickness.Each elementary cell is made up of 2 liquid flow frames, 1 barrier film and 2 reinforcement steel plates, reinforcement steel plate and liquid flow frame are stacked together, so add barrier film in the middle of latter two liquid flow frame flow passage side back side, barrier film overall dimension is consistent with liquid flow frame overall dimension, clear size of opening is consistent with liquid flow frame clear size of opening size and position, and piercing into that liquid flow frame and barrier film tighten by through hole attaching nut with matched bolt is an elementary cell.Each elementary cell adopts U-shaped clamp to surround surrounding, meanwhile, U-shaped clamp is furnished with four fixing ears, and fixing ear center is the circular hole of certain size, and it is consistent that thickness and 2 liquid flow frames of U-shaped clamp superpose thickness.Clamp material can be one in PP, PE or PVC or other metal materials.Two thin backing plates are all had in each collector both sides, on backing plate, lead to the hole site is consistent with liquid flow frame, the rectangular through-hole consistent with electrode overall dimension is left in centre position, and backing plate and collector are equipped with the fixing ear consistent with U-shaped clamp in two sides, elementary cell and collector are positioned by fixing ear.
In a specific embodiment, the compressing method of liquid stream battery stack of the present invention, concrete steps are:
(1) electrode is put in the cell internal liquid flow frame fixed;
(2) install to one by one successively in Battery case according to the order of backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate, by fixing ear being penetrated four column type guide rails on casing, fix collector, distance between battery unit and box house three with this.
(3), after being added to group number required according to said sequence, carry out packaged battery heap with the side with steering-wheel type, compress, this battery pile is all-vanadium flow battery heap.
Below with reference to the accompanying drawings and, the present invention is elaborated further in conjunction with the embodiments.
As shown in Figure 1, according to the basic battery unit exploded view of the present invention's specific embodiment, be provided with groove 5. in liquid flow frame flow passage side 1., 2. groove 5. for coordinating with reinforcement steel plate.Liquid flow frame thickness is 4mm, and the groove 5. degree of depth is 2mm, groove 5. in be evenly distributed with the through hole of Φ 18mm.Reinforcement steel plate 2. surrounding has the through hole concentric with liquid flow frame, but is alternately distributed sized by through hole, and through-hole diameter is respectively Φ 18mm and Φ 10mm.Reinforcement steel plate 2. surrounding through hole be provided with rectangular recess with exterior domain, steel plate thickness is 2mm, the rectangular recess degree of depth is 1mm, as can be seen from Figure 1,3. the barrier film consistent with liquid flow frame size and lead to the hole site is placed between two liquid flow frames, 1. 2. reinforcement steel plate is stacked together with liquid flow frame, pierces into screw attaching nut by matched bolt and be fixed.Then 6. U-shaped clamp is surrounded the liquid flow frame that fixes 1., U-shaped clamp 6. wall thickness is 1mm, the fixing ear of U-shaped clamp 6. side
upper through-hole diameter is Φ 18mm.Finally, liquid flow frame 1. in put into electrode 4., so basic battery unit just completes.
As shown in Figure 2, according to the installation diagram of the present invention's specific embodiment, there are four cylindrical guides in Battery case 9., the fixing ear that 6. particular location and U-shaped clamp are gone up
unanimously, cylindrical guide 9. on adopt heat-shrink tube to carry out insulation protection.Can find out, only need by backing plate 8., collector 7., the elementary cell of backing plate 8., in Fig. 1, backing plate 8., collector 7., backing plate order 8. penetrates into casing successively
in four column type fixed guides 9. in, be added to after required group number, seal up in Fig. 3 with steering wheel in outermost
push pedal
by rotating steering wheel
the power that screws produced drives push pedal
motion seals battery pile, and can complete the sealing of battery pile, finally add upper box lid at top and 10. complete encapsulation, described clamping mode is the effect that the power that screws produced by the bolt rotary of steering-wheel type plays sealing.
In the present invention, by liquid flow frame and barrier film are formed an elementary cell, under the effect of securing member, the sealing between liquid flow frame and barrier film can be realized, thus avoid the infiltration problem of electrolyte at elevated pressures.And liquid flow frame and reinforcement steel plate adopt aspectant mode to combine, and obviously can reduce local pressure, avoid the distortion of liquid flow frame, thus avoid the risk of leakage.
Embodiment result shows, the novel liquid stream battery stack of the present invention utilizes bolt assembly to pass to be distributed in the through hole strengthening steel plate to clamp and self-contained battery liquid flow frame and barrier film, and become an elementary cell, whole battery pile forms by several elementary cells are superimposed.According to the inventive method can simply effectively, the heap of assembled battery easily, effectively solve the leakage problem between battery pile elementary cell simultaneously.
These are only section Example of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should within protection scope of the present invention.
Claims (10)
1. a novel liquid stream battery stack, comprise multiple collector, multiple electrode, multiple liquid flow frame, multiple barrier film and multiple reinforcement steel plate, it is characterized in that, described battery pile comprises multiple cell basic unit, and liquid flow frame and barrier film clamp by the mode bolt that each elementary cell adopts reinforcement steel plate and liquid flow frame to combine.
2. novel liquid stream battery stack according to claim 1, is characterized in that, is provided with rectangular recess in liquid flow frame flow passage side surrounding, for placing reinforcement steel plate; Depth of groove is consistent with reinforcement steel plate thickness, strengthen the layout that steel plate adopts large aperture to replace, the large aperture strengthening steel plate is corresponding with the hole on liquid flow frame, all adopts macropore in liquid flow frame relevant position, and the macropore on liquid flow frame is identical with the diameter macropores strengthened on steel plate.
3. novel liquid stream battery stack according to claim 1, is characterized in that, be provided with rectangular recess at reinforcement steel plate through hole with external position, depth of groove is consistent with U-shaped clamp wall thickness.
4. novel liquid stream battery stack according to claim 1, it is characterized in that, each elementary cell is made up of 2 liquid flow frames, 1 barrier film and 2 reinforcement steel plates, reinforcement steel plate and liquid flow frame are stacked together, so add barrier film in the middle of latter two liquid flow frame flow passage side back side, barrier film overall dimension is consistent with liquid flow frame overall dimension, clear size of opening is consistent with clear size of opening size in liquid flow frame and position, and piercing into that liquid flow frame and barrier film tighten by through hole attaching nut with matched bolt is an elementary cell.
5. novel liquid stream battery stack according to claim 1, it is characterized in that, each elementary cell adopts U-shaped clamp to surround surrounding, U-shaped clamp is furnished with four fixing ears simultaneously, fixing ear center is the circular hole of certain size, and the thickness of U-shaped clamp superposes consistency of thickness with 2 liquid flow frames; U-shaped clamp material is one in PP, PE or PVC or other metal materials.
6. novel liquid stream battery stack according to claim 1, it is characterized in that, two thin backing plates are all had in each collector both sides, on backing plate, lead to the hole site is consistent with liquid flow frame, the rectangular through-hole consistent with electrode overall dimension is left in centre position, and backing plate and collector are equipped with the fixing ear consistent with U-shaped clamp in two sides, elementary cell and collector are positioned by fixing ear.
7. novel liquid stream battery stack according to claim 1, is characterized in that, battery pile is all-vanadium flow battery heap.
8. a compressing method for novel liquid stream battery stack, is characterized in that, comprises the following steps:
(1) electrode is put in the cell internal liquid flow frame fixed;
(2) install to one by one successively in Battery case according to the order of backing plate, collector, backing plate, battery unit, backing plate, collector, backing plate, by fixing ear being penetrated four column type guide rails on casing, fix collector, distance between battery unit and box house three with this;
(3), after being added to group number required according to said sequence, carry out packaged battery heap with the side with steering-wheel type, compress.
9. according to the compressing method of novel liquid stream battery stack according to claim 8, it is characterized in that having four cylindrical guides in Battery case, particular location is consistent with the fixing ear on U-shaped clamp, cylindrical guide adopts heat-shrink tube carry out insulation protection.
10. according to the compressing method of novel liquid stream battery stack according to claim 8, it is characterized in that, compress the power that the screws encapsulation produced by the bolt rotary of steering-wheel type.
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 true CN104409761A (en) | 2015-03-11 |
| CN104409761B CN104409761B (en) | 2017-08-11 |
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Cited By (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 |
| CN106099154A (en) * | 2016-08-25 | 2016-11-09 | 中国科学院金属研究所 | A kind of serialization battery pack structure device |
| CN107196021A (en) * | 2017-05-18 | 2017-09-22 | 安徽晟麦德机电设备有限公司 | Zinc-air battery electrode pressing plate |
| CN117096408A (en) * | 2023-10-20 | 2023-11-21 | 博鼎储能科技(山东)有限公司 | Liquid flow energy storage battery structure |
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| 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 |
| US20120301751A1 (en) * | 2011-05-25 | 2012-11-29 | NIM Energy Inc. | Power and hydrogen generator |
| CN103647101A (en) * | 2013-12-06 | 2014-03-19 | 中国东方电气集团有限公司 | Flow battery |
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Cited By (7)
| 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 |
| CN106099154A (en) * | 2016-08-25 | 2016-11-09 | 中国科学院金属研究所 | A kind of serialization battery pack structure device |
| 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 |
| CN107196021A (en) * | 2017-05-18 | 2017-09-22 | 安徽晟麦德机电设备有限公司 | Zinc-air battery electrode pressing plate |
| 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 |
| CN117096408A (en) * | 2023-10-20 | 2023-11-21 | 博鼎储能科技(山东)有限公司 | Liquid flow energy storage battery structure |
| 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 |
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| CN104409761B (en) | 2017-08-11 |
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