CN103296300A - Vanadium battery pack, liquid flow frame and liquid storage tank for laboratory investigation - Google Patents
Vanadium battery pack, liquid flow frame and liquid storage tank for laboratory investigation Download PDFInfo
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- CN103296300A CN103296300A CN2013102202910A CN201310220291A CN103296300A CN 103296300 A CN103296300 A CN 103296300A CN 2013102202910 A CN2013102202910 A CN 2013102202910A CN 201310220291 A CN201310220291 A CN 201310220291A CN 103296300 A CN103296300 A CN 103296300A
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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
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Abstract
The invention discloses a vanadium battery pack, a liquid flow frame and a liquid storage tank for laboratory investigation. The related vanadium battery pack is mainly composed of the liquid flow frame, a porous electrode, a diaphragm, a collector plate, a copper sheet, a housing, a fastener, a liquid flow passage and the liquid storage tank. The vanadium battery pack is assembled mainly by repeated structural units of the liquid flow frame, the porous electrode and the diaphragm and the proper liquid flow passage, wherein an electrolyte can be shunted better by the liquid flow frame through the designed streamlined flow passage, the flow resistance of the electrolyte is reduced, so that the electrolyte is uniformly distributed and quickly flows on the surface of the porous electrode, and the energy efficiency of a vanadium battery is effectively improved. A liquid inlet valve, an air inlet valve and an air evacuation valve are arranged on the top end of the liquid storage tank, a liquid draining valve is arranged on the bottom end of the liquid storage tank, so that the electrolyte can be conveniently analyzed and managed on site, and the storage effect is good and safe. The design can satisfy the requirement of laboratory simulation investigation of large-scale vanadium battery industrialized operation.
Description
Technical field
The present invention relates to the vanadium cell field, be specifically related to a kind of vanadium cell group, liquid flow frame and fluid reservoir for laboratory research.
Background technology
Vanadium redox battery (being called for short vanadium cell or VRFB) is that a kind of vanadium ion solution with different valence state is the energy-storage battery of the novel high-efficiency environment friendly of both positive and negative polarity active material.Different with traditional storage battery, the big degree of depth heavy-current discharge of capacity, life-span are long, active material can be recycled, do not have advantages such as cross pollution, environmental protection but vanadium cell has, and become the focus of energy-storage battery research in recent years gradually.
Vanadium cell is stored in vanadium ion both positive and negative polarity active material respectively in the both positive and negative polarity fluid reservoir, drives vanadium cell group (abbreviation pile) generation redox reaction by the liquid pump and flows back in the fluid reservoir again, forms the circulating fluid loop, finally realizes charge and discharge process.As the core component of vanadium cell, the quality of pile performance directly affects the overall performance of vanadium cell.Pile is to be in series through repetitive liquid flow frame, porous electrode and barrier film by a plurality of monocells.At present, because the restriction of design processing conditions, laboratory main research is mostly studied seldom assembling and the overall performance of basic material in pile of pile in the performance of basic materials such as vanadium monocell septation, electrode and electrolyte, and this is unfavorable for the large-scale commercial applications application of vanadium cell.The design of the runner of liquid flow frame directly influences electrolyte flow mode and flowing velocity in the pile, and then influences the overall performance of pile.In order to allow the even dispersion flows of electrolyte, generally can design a plurality of fluid courses at inlet and liquid flow frame hollow space junction, the equally spaced small solid rectangle of normal employing, this design can be shunted electrolyte preferably, but be unfavorable for flowing fast of electrolyte, finally influence the performance of pile.Therefore, design and develop a kind of streamlined be conducive to electrolyte shunting and the liquid flow flowing frame very important.Fluid reservoir is as the storage place of V electrolyte, need possess acid corrosion-resistant, the on-the-spot detection taken basic functions such as convenience, safety, preservation be permanent.At present, the laboratory gets seldom the design studies of V electrolyte fluid reservoir, and the liquid storage tank structure of industrial design is very complicated, is unfavorable for the laboratory research vanadium cell.Therefore, design and develop a kind of simple in structurely, the fluid reservoir that can satisfy the laboratory research needs is very important.
In order further to promote the commercialization process of vanadium cell, more the industrialization ruuning situation of the extensive vanadium cell of real simulated is necessary to design and develop out a kind of vanadium cell group, liquid flow frame and fluid reservoir for laboratory research.
Summary of the invention
The present invention has designed and developed out a kind of vanadium cell group, liquid flow frame and fluid reservoir for laboratory research.Purpose is, satisfies the needs that extensive vanadium cell industrialization ruuning situation is studied in laboratory simulation.
Disclosed by the invention for laboratory research vanadium cell group inside and the surface structure schematic diagram respectively referring to Fig. 1 and Fig. 2, a side plane of liquid flow frame and schematic perspective view are respectively referring to Fig. 3 and Fig. 4, the structural representation of fluid reservoir is referring to Fig. 5.
As depicted in figs. 1 and 2, the vanadium cell group mainly is made up of liquid flow frame 3, porous electrode 2, barrier film 1, collector plate 4, copper sheet 5, shell 6 and securing member 12, fluid course 10 and fluid reservoir 13, is that the plane of symmetry is symmetrically distributed with barrier film 1.Mainly the constitutional repeating unit by liquid flow frame 3, porous electrode 2, barrier film 1 and suitable fluid course 10 assembles, and can satisfy the needs of laboratory research vanadium cell group 13.
As shown in Figure 3 and Figure 4, liquid flow frame 3 comprises the framework with hollow space 11, and the inlet 7 that a side arranges and liquid outlet 8 are communicated with recessed fluid course 10 and hollow space 11.The small shell type of the recessed fluid course 10 even equally spaced distributions in surface of liquid flow frame 3 protrudes 9, and this protrusion 9 is contour with liquid flow frame 3 edges, is airflow design, smooth surface.This design can well be held porous electrode 2, shunts electrolyte uniformly, reduces the electrolyte stream dynamic resistance, makes electrolyte evenly distribute and flow fast on the porous electrode surface, has improved the energy efficiency of vanadium cell effectively.
As shown in Figure 5, there are feed liquor valve 15, intake valve 17 and vent valve 18 in fluid reservoir 14 tops, and there is tapping valve 16 bottom, and these designs make the electrolyte field assay convenient with management, store better effects and if safer.
In the vanadium cell group 13 related barrier film 1 be Nafion series membranes, polyether-ketone series membranes, polyether sulfone series membranes or and modification composite membrane based on this; Porous electrode 2 be graphite felt, charcoal felt, carbon paper or and the compound porous felt of modification based on this; Collector plate 4 is acidproof conducting polymer plate, graphite cake, acid metal plate or modified composite board based on this; Liquid flow frame 3, fluid reservoir 14, shell 6 and fluid flow tube road are acidproof polymeric material, such as polyvinyl chloride, polytetrafluoroethylene or polypropylene etc.These materials mostly are common industrial materials greatly except barrier film, less expensive, and it is also very easy to process, and is conducive to the more jumbo vanadium cell group of assembling.
In the structure of vanadium cell group 13, barrier film 1 and liquid flow frame 3 are all used acidproof polymer pad (not shown) sealing between liquid flow frame 3 and the collector plate 4, can prevent that electrolyte from influencing energy content of battery efficient because of leakage when circulating.The flow direction of positive and negative electrode electrolyte (not shown) in pipeline makes them more abundant in the redox reaction on barrier film 1 and porous electrode 2 surfaces for flowing (Fig. 2) in opposite directions, to improve the energy efficiency of battery.
Designed vanadium cell group, liquid flow frame and the liquid storage tank structure of technical scheme disclosed by the invention is simple, processes easily and assembles, and energy content of battery efficient height can satisfy the needs that extensive vanadium cell industrialization ruuning situation is studied in laboratory simulation.
Description of drawings
Fig. 1 vanadium cell group internal structure schematic diagram
Fig. 2 vanadium cell group surface structure schematic diagram
Fig. 3 liquid flow frame one side plane structural representation
Fig. 4 liquid flow frame one edge-on body structure schematic diagram
Fig. 5 liquid storage tank structure schematic diagram.
Claims (9)
1. vanadium cell group (13) that is used for laboratory research, mainly being made up of liquid flow frame (3), porous electrode (2), barrier film (1), collector plate (4), copper sheet (5), shell (6) and securing member (12), fluid course (10) and fluid reservoir (14), is that the plane of symmetry is symmetrically distributed with the barrier film; Mainly the constitutional repeating unit by liquid flow frame (3), porous electrode (2), barrier film (1) and suitable fluid course (10) assembles.
2. liquid flow frame according to claim 1 (3) is characterized in that, comprises the have hollow space framework of (11), and the inlet (7) that a side arranges and liquid outlet (8) are communicated with recessed fluid course (10) and hollow space (11).
3. liquid flow frame according to claim 2 (3), it is characterized in that the small shell type of described recessed fluid course (10) the even equally spaced distribution in surface is protruded (9), this protrusion (9) is contour with liquid flow frame (3) edge, be airflow design, smooth surface.
4. fluid reservoir according to claim 1 (14) is made up of the tapping valve (16) of feed liquor valve (15), intake valve (17), vent valve (18) and the bottom on top.
5. barrier film according to claim 1 (1) is Nafion series membranes, polyether-ketone series membranes, polyether sulfone series membranes or and modification composite membrane based on this.
6. porous electrode according to claim 1 (2) is graphite felt, charcoal felt, carbon paper or and the compound porous felt of modification based on this.
7. collector plate 4 according to claim 1 is acidproof conducting polymer plate, graphite cake, acid metal plate or modified composite board based on this.
8. liquid flow frame according to claim 1 (3), fluid reservoir (14), shell (6) and fluid flow tube road are acidproof polymeric material, such as polyvinyl chloride, polytetrafluoroethylene or polypropylene etc.
9. vanadium cell group according to claim 1 (13), its septation (1) and liquid flow frame (3) are all used acidproof polymer pad between liquid flow frame (3) and the collector plate (4), such as polyvinyl chloride, polypropylene, fluorubber or teflon seal; The flow direction of positive and negative electrode electrolyte in fluid course (10) and pipeline is for flowing in opposite directions.
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| CN2013102202910A CN103296300A (en) | 2013-06-05 | 2013-06-05 | Vanadium battery pack, liquid flow frame and liquid storage tank for laboratory investigation |
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Cited By (3)
| 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 |
| CN111293340A (en) * | 2020-02-26 | 2020-06-16 | 西北大学 | Neutral organic redox flow battery |
| CN111653812A (en) * | 2020-06-09 | 2020-09-11 | 国网电力科学研究院有限公司 | Novel vanadium cell stack capable of being modularized |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201266642Y (en) * | 2008-07-31 | 2009-07-01 | 比亚迪股份有限公司 | Electric stack structure of liquid stream battery |
| CN101764237A (en) * | 2008-12-23 | 2010-06-30 | 比亚迪股份有限公司 | Liquid flow frame, vanadium battery and vanadium battery pack |
| CN101872847A (en) * | 2009-04-23 | 2010-10-27 | 夏嘉琪 | Storage tank of cathodic electrolyte of thin-film type full-vanadium liquid flow energy storage battery |
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2013
- 2013-06-05 CN CN2013102202910A patent/CN103296300A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266642Y (en) * | 2008-07-31 | 2009-07-01 | 比亚迪股份有限公司 | Electric stack structure of liquid stream battery |
| CN101764237A (en) * | 2008-12-23 | 2010-06-30 | 比亚迪股份有限公司 | Liquid flow frame, vanadium battery and vanadium battery pack |
| CN101872847A (en) * | 2009-04-23 | 2010-10-27 | 夏嘉琪 | Storage tank of cathodic electrolyte of thin-film type full-vanadium liquid flow energy storage battery |
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 |
| CN111293340A (en) * | 2020-02-26 | 2020-06-16 | 西北大学 | Neutral organic redox flow battery |
| CN111653812A (en) * | 2020-06-09 | 2020-09-11 | 国网电力科学研究院有限公司 | Novel vanadium cell stack capable of being modularized |
| CN111653812B (en) * | 2020-06-09 | 2022-06-03 | 国网电力科学研究院有限公司 | Novel vanadium cell stack capable of being modularized |
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Application publication date: 20130911 |