CN204651407U - A kind of flow passage structure of single flow battery - Google Patents
A kind of flow passage structure of single flow battery Download PDFInfo
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- CN204651407U CN204651407U CN201520419734.3U CN201520419734U CN204651407U CN 204651407 U CN204651407 U CN 204651407U CN 201520419734 U CN201520419734 U CN 201520419734U CN 204651407 U CN204651407 U CN 204651407U
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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 utility model relates to a kind of flow passage structure of single flow battery, it comprises being bonded together and collector electrode is fixed on two pieces of middle grids, this grid comprises two positioning strips paralleled, both ends are erected at many grizzly bars on two positioning strips respectively, wherein many grizzly bars are spaced apart along the bearing of trend of positioning strip, grizzly bar comprises the protuberance being positioned at two positioning strip homonymies, and protuberance is wholely set the spacer portion between two positioning strips, collector electrode can be fixed on centre from the protuberance of grizzly bar or positioning strip by two pieces of grids, grizzly bar and positioning strip, and between grid and collector electrode, be formed with the runner that electrolysis matter solution flows through.The utility model can specification electrolyte solution flowing direction and uniformity, and structure is simple, is applicable in electroplating industry and appositional pattern flow battery system.
Description
Technical field
The utility model belongs to Electrochemical Engineering and commercial plant field, is related specifically to a kind of flow passage structure of single flow battery.
Background technology
Flow battery is one of worldwide largest energy-storage battery, because flexible design, life cycle cost are minimum, can be applicable to various energy storage occasion, therefore competitiveness is very strong, and application prospect is boundless, is one of indispensable technology of renewable energy utilization and intelligent grid development.Accelerate development the regenerative resources such as wind energy, solar energy, biomass energy now very urgent, develop efficient scale energy storage technology meaning very great.
The positive and negative electrode active material of flow battery is mainly present in electrolyte, comprises dual-liquid flow type and appositional pattern flow battery two class, and wherein the active material of one or two electrode of appositional pattern flow battery is with electrochemical deposition/course of dissolution energy storage.Document (J. Power Sources 27 (1989) 219) shows, the eighties in last century, researcher proposed the right flow battery system of the electricity such as the appositional pattern that adopts copper, zinc, iron, but the surface topography of deposition type electrode is wayward, easily produce sedimentary deposit accumulation.Within 2004, southern Pletcher seminar of the University of Cape Town (Phys.Chem. Chem. Phys. 2004 (6) 1773) of Britain is based on a kind of full appositional pattern liquid flow energy storage battery system newly of concept proposition of conventional lead acid secondary cell, deposits PbO respectively with the lead ion be dissolved in pyrovinic acid non-aqueous electrolytic solution on both positive and negative polarity
2with Pb energy storage.But the problems such as sedimentary deposit is uneven, accumulation, pattern is not good that this battery does not still solve.Our problem proposes zinc-nickel single flow battery (ZL 200610109424.7), also there is the problems such as zinc uneven, the improper deposition in edge of deposition and growth.
Single flow battery is used for the electric power storage of the unsteadiness such as solar photovoltaic generating, wind-force generating, is relatively optimum scale energy-storage battery system from aspects such as safety, energy storage efficiency, cost performances.Single flow battery structure is simple, and electrolyte is single, only has an electrolyte loop, and need not use the amberplex that price is high, avoid the problem of ion cross pollution, therefore maintenance cost is lower.
In single flow battery internal structure, need between positive and negative electrode to add screen to separate two electrodes and to form the flow passage structure needed for electrolyte solution flowing.Flow passage structure is the key factor affecting flow battery performance.Flow passage structure determines the distribution of electrolyte in electrode, directly has influence on the key issues such as the mass transfer rate of electrolyte, electric current distribution and overpotential distribution.Electric current distribution is uneven not only can reduce flow battery performance with local overpotential height, and easily causes the corrosion of critical material, shortens the useful life of flow battery.
Between the electrode of single flow battery, screen is the important composition parts of storage battery, not only needs the current density of specifications set electrode, also will avoid on unexpected surface, occurring deposition and the phenomenons such as dendrite short circuit occurring.In addition, between the electrode of single flow battery, the effect in fixed set electrode, specification electrolyte solution flowing direction also born by screen.But electrode screen ubiquity general at present complex structure, and manufacturing cost is high, assembles loaded down with trivial details, the defects such as useful life is short.
Based on above consideration, we have proposed a kind of flow passage structure of single flow battery, can specification electrolyte solution flowing direction and uniformity on this flow passage structure, simultaneously can also fixed set electrode electrolyte solution and unexpected collector electrode surface are kept apart, structure is simple, can be used in electroplating industry and appositional pattern flow battery system.
Summary of the invention
The utility model, for solving above-mentioned defect in prior art, provides a kind of flow passage structure of single flow battery of improvement, can specification electrolyte solution flowing direction and uniformity, and structure is simple, is applicable in electroplating industry and appositional pattern flow battery system.
The purpose of this utility model is realized by following manner:
A kind of flow passage structure of single flow battery, it comprises being bonded together and collector electrode is fixed on two pieces of middle grids, this grid comprises two positioning strips paralleled, both ends are erected at many grizzly bars on two positioning strips respectively, wherein many grizzly bars are spaced apart along the bearing of trend of positioning strip, grizzly bar comprises the protuberance being positioned at two positioning strip homonymies, and protuberance is wholely set the spacer portion between two positioning strips, collector electrode can be fixed on centre from the protuberance of grizzly bar or positioning strip by two pieces of grids, grizzly bar and positioning strip, and between grid and collector electrode, be formed with the runner that electrolysis matter electrolyte solution flows through.
Specifically implement and preferred aspect according to one of the present utility model, collector electrode is fixed on centre from the protuberance of grizzly bar by two pieces of grids, the protuberance being positioned at two grizzly bars outside two of a grid is wherein respectively equipped with projection and short slot, the protuberance being positioned at two grizzly bars outside two of another grid is respectively equipped with and coordinates with it and short slot and projection one to one.
Preferably, two pieces of grids are symmetrical arranged about collector electrode.That is, the structure of two pieces of grids is identical.Protruding width is equal with the width of short slot, is between 0.2 ~ 2mm, and the lateral surface of projection, short slot and the protuberance that is positioned at two grizzly bars outside two is coplanar.
Preferably, be arranged on projection on protuberance and short slot extends along protuberance length side respectively, and the length extended is less than or equal to 1/2 of protuberance length.
Specifically implement and preferred aspect according to of the present utility model another, collector electrode is fixed on centre by two pieces of self-align bars of grid, wherein a grid on the side of the positioning strip with collector contact, be respectively equipped with projection and short slot, coordinate with it and short slot and projection one to one being respectively equipped with on the side of the positioning strip with collector contact of another grid.
Preferably, be arranged on projection on the side of positioning strip and short slot extends along positioning strip length side, and the length extended is less than or equal to 1/2 of positioning strip length.
Preferably, the end face of protuberance flushes setting with positioning strip lateral surface, and the lateral surface of protuberance and the end face of positioning strip that are positioned at two grizzly bars in outside are arranged, and the bottom surface of spacer portion flushes setting with positioning strip bottom surface.
Preferably, the thickness of protuberance is 1/2 ~ 1/5 of grizzly bar thickness.
Preferably, many grizzly bars along positioning strip bearing of trend between be uniformly distributed.
In addition, the physical dimension of grid is more than or equal to the physical dimension of collector electrode; The material of grid is insulating material, and this insulating material is acrylonitrile-butadiene-styrene copolymer, polymethylpentene, polyethylene, polypropylene, polybutene, nylon, polystyrene, polyvinyl chloride, polyvinylidene chloride, rubber or silicon rubber.When two pieces of grids adopt the cooperation of protrusion and short slot, the physical dimension of grid is greater than the physical dimension of collector electrode, when the mode that two pieces of grids employing outer connectors such as press from both sides or directly adhere to, the physical dimension of grid can be more than or equal to the physical dimension of collector electrode.
Due to the enforcement of above technical scheme, the utility model compared with prior art tool has the following advantages:
The utility model can specification electrolyte solution flowing direction and uniformity, and structure is simple, is applicable in electroplating industry and appositional pattern flow battery system.
Accompanying drawing explanation
Fig. 1 is the structural representation according to the utility model screen I;
Fig. 2 is the structural representation according to screen II of the present utility model;
Fig. 3 is the schematic front view according to the utility model flow passage structure (screen I, II combination);
Fig. 4 is that schematic diagram is looked on a left side of Fig. 3;
Fig. 5 is the screen I, II anabolic process schematic diagram (left side is looked) of Fig. 3;
Wherein: 1, grid; 10, positioning strip; 11, grizzly bar; 110, protuberance; 111, spacer portion; 2, runner; 3, collector electrode; A, a ', protruding; B, b ', short slot.
Embodiment
Below with reference to accompanying drawing, comparatively detailed explanation is carried out to the utility model.
As shown in Figures 1 to 5, the flow passage structure of the single flow battery that the present embodiment provides, it comprises being bonded together and collector electrode 3 is fixed on two pieces of middle grids 1, this grid 1 comprises two positioning strips 10 paralleled, both ends are erected at the many grizzly bars 11 on two positioning strips 10 respectively, wherein many grizzly bars 11 are spaced apart along the bearing of trend of positioning strip 10, grizzly bar 11 comprises the protuberance 110 being positioned at two positioning strip 10 homonymies, and protuberance 110 is wholely set the spacer portion 111 between two positioning strips 10, collector electrode 3 can be fixed on centre from the protuberance 110 of grizzly bar 11 or positioning strip 10 by two pieces of grids 1, grizzly bar 11 and positioning strip 10, and between grid 1 and collector electrode 3, be formed with the runner 2 that electrolysis matter electrolyte solution flows through.
In this example, the physical dimension of grid 1 is more than or equal to the physical dimension of collector electrode 3, when two pieces of grids 1 adopt the cooperation of protrusion and short slot, the physical dimension of grid 1 is greater than the physical dimension of collector electrode 3, when two pieces of grids 1 adopt outer connector such as to press from both sides or directly adhere to mode time, the physical dimension of grid 1 can be more than or equal to the physical dimension of collector electrode 3, and two pieces of grids 1 are symmetrical arranged about collector electrode 3 simultaneously, in other words, the structure of two pieces of grids 1 is identical.
Concrete, engaging to realize two pieces of grids 1, having two kinds of modes:
The first is: collector electrode 3 is fixed on centre from the protuberance 110 of grizzly bar 11 by two pieces of grids, the protuberance 110 being positioned at two grizzly bars 11 outside two of a grid (being defined as I) is wherein respectively equipped with protruding a and short slot b, the protuberance 110 being positioned at two grizzly bars 11 outside two of another grid (being defined as II) is respectively equipped with and coordinates with it and short slot b ' and protruding a ' one to one.Further, be arranged on protruding a, a ' on protuberance 110 and short slot b, b ' extend along protuberance 110 length side respectively, and the length extended is less than or equal to 1/2 of protuberance 110 length.Concrete fit system, grid I projection a with on grid II one to one short slot b ' coordinate; Grid I projection b with on grid II one to one protruding a ' coordinate, the width of its protrusions a, a ' and short slot b, b ' width equal, be between 0.2 ~ 2mm, and protruding a, a ', the lateral surface of short slot b, b ' and the protuberance 110 that is positioned at two grizzly bars outside two is coplanar.
The mode that the second is arranged is substantially identical with the first, but (those skilled in the art are easy to expect the position difference arranged, therefore omit its view), particularly: collector electrode 3 is fixed on centre by two pieces of self-align bars 10 of grid, the side for the positioning strip with collector contact of a grid is provided with projection or short slot wherein, coordinates with it and short slot or projection one to one being provided with on the side of the positioning strip with collector contact of another grid.Further, be arranged on projection on the side of positioning strip or short slot extends along positioning strip length side, and the length extended is less than or equal to 1/2 of positioning strip length, the width of its protrusions a, a ' and short slot b, b ' width equal, be between 0.2 ~ 2mm, and protruding a, a ', short slot b, b ' and to be positioned at the lateral surface of two positioning strips 10 outside two coplanar.
Have employed first kind of way in this example to realize, the physical dimension of grid is greater than the physical dimension of collector electrode 3.
The end face of protuberance 110 flushes setting with positioning strip 10 lateral surface, and the lateral surface of protuberance 110 and the end face of positioning strip 10 that are positioned at two grizzly bars 11 in outside are arranged; The bottom of spacer portion 111 flushes setting with the bottom of positioning strip 10.
In this example, the thickness of protuberance 110 is 1/2 ~ 1/5 of grizzly bar thickness.Many grizzly bars 11 along positioning strip 10 bearing of trend between be uniformly distributed.
The material of grid 1 is insulating material, and this insulating material is acrylonitrile-butadiene-styrene copolymer, polymethylpentene, polyethylene, polypropylene, polybutene, nylon, polystyrene, polyvinyl chloride, polyvinylidene chloride, rubber or silicon rubber.
In sum, the utility model forms passage by grid and collector electrode, can the mode of specification electrolyte flow or stirring, and deposition type electrode surface current density is evenly distributed, thus sedimentary deposit and the battery performance of needs can be obtained, be applicable in electroplating industry and appositional pattern battery system.
Above the utility model is described in detail; its object is to allow the personage being familiar with this art can understand content of the present utility model and be implemented; protection range of the present utility model can not be limited with this; all equivalences done according to Spirit Essence of the present utility model change or modify, and all should be encompassed in protection range of the present utility model.
Claims (10)
1. the flow passage structure of a single flow battery, it is characterized in that: described flow passage structure comprises being bonded together and collector electrode (3) is fixed on two pieces of middle grids (1), described grid (1) comprises two positioning strips (10) paralleled, both ends are erected at the many grizzly bars (11) on two described positioning strips (10) respectively, described many grizzly bars (11) are spaced apart along the bearing of trend of described positioning strip (10), described grizzly bar (11) comprises the protuberance (110) being positioned at two described positioning strip (10) homonymies, and described protuberance (110) is wholely set the spacer portion (111) be positioned between two described positioning strips (10), described collector electrode (3) can be fixed on centre from the protuberance of described grizzly bar (11) (110) or described positioning strip (10) by two pieces of described grids (1), described grizzly bar (11) and described positioning strip (10), and between described grid (1) and described collector electrode (3), be formed with the runner (2) that electrolysis matter solution flows through.
2. the flow passage structure of single flow battery according to claim 1, it is characterized in that: described collector electrode (3) is fixed on centre by the protuberance (110) of two pieces of described grids (1) from described grizzly bar (11), the protuberance (110) being positioned at two described grizzly bars (11) outside two of the grid (1) wherein described in is respectively equipped with projection and short slot, the protuberance (110) being positioned at two described grizzly bars (11) outside two of the grid (1) described in another is respectively equipped with and coordinates with it and short slot and projection one to one.
3. the flow passage structure of single flow battery according to claim 2, it is characterized in that: two pieces of described grids (1) are symmetrical arranged about described collector electrode (3), the width of described projection is equal with the width of described short slot, be between 0.2 ~ 2mm, and the lateral surface of described projection, short slot and the protuberance (110) that is positioned at two described grizzly bars (11) outside two is coplanar.
4. the flow passage structure of the single flow battery according to Claims 2 or 3, it is characterized in that: be arranged on projection on described protuberance (110) and short slot extends along described protuberance (110) length side respectively, and the length extended is less than or equal to 1/2 of described protuberance (110) length.
5. the flow passage structure of single flow battery according to claim 1, it is characterized in that: described collector electrode (3) is fixed on centre from described positioning strip (10) by two pieces of described grids (1), grid (1) wherein described in one on the side of the described positioning strip (10) with described collector contact, be respectively equipped with projection and short slot, being respectively equipped with on the side of the described positioning strip (10) with described collector contact of the grid (1) described in another coordinates with it and short slot and projection one to one.
6. the flow passage structure of single flow battery according to claim 5, it is characterized in that: be arranged on projection on the side of described positioning strip (10) and short slot extends along described positioning strip (10) length side, and the length extended is less than or equal to 1/2 of described positioning strip (10) length.
7. the flow passage structure of single flow battery according to claim 1, it is characterized in that: the end face of described protuberance (110) flushes setting with described positioning strip (10) lateral surface, the lateral surface of described protuberance (110) and the end face of described positioning strip (10) that are positioned at two described grizzly bars (11) in outside are arranged; The bottom surface of described spacer portion (111) flushes setting with described positioning strip (10) bottom surface.
8. the flow passage structure of single flow battery according to claim 1, is characterized in that: the thickness of described protuberance (110) is 1/2 ~ 1/5 of described grizzly bar thickness.
9. the flow passage structure of single flow battery according to claim 1, is characterized in that: the grizzly bar (11) described in many along described positioning strip (10) bearing of trend between be uniformly distributed.
10. the flow passage structure of single flow battery according to claim 1, it is characterized in that: the material of described grid (1) is insulating material, and this insulating material is acrylonitrile-butadiene-styrene copolymer, polymethylpentene, polyethylene, polypropylene, polybutene, nylon, polystyrene, polyvinyl chloride, polyvinylidene chloride, rubber or silicon rubber.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3439092A1 (en) * | 2017-08-04 | 2019-02-06 | Siemens Aktiengesellschaft | Electrode structure for a redox flow battery as well as redox flow battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3439092A1 (en) * | 2017-08-04 | 2019-02-06 | Siemens Aktiengesellschaft | Electrode structure for a redox flow battery as well as redox flow battery |
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Effective date of registration: 20171221 Address after: 313100 Zhejiang Huzhou city Changxing County Development Zone, No. 669 National University Science Park, No. 4, No. 1 building Patentee after: ZHEJIANG YUYUAN ENERGY STORAGE TECHNOLOGY Co.,Ltd. Address before: Room 232, No. 1, No. 1, Guotai North Road, Zhangjiagang, Zhangjiagang, Jiangsu Patentee before: ZHANGJIAGANG SMARTGRID FANGHUA ELECTRICAL ENERGY STORAGE RESEARCH INSTITUTE CO. |
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Effective date of registration: 20221026 Address after: 100191 Beijing box 925 Haidian District West Patentee after: INSTITUTE OF CHEMICAL DEFENSE, CHINESE ACADEMY OF MILITARY SCIENCES Address before: 313100 floor 1, plant 4, National University Science Park, No. 669 Gaotie railway, Changxing County Development Zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG YUYUAN ENERGY STORAGE TECHNOLOGY Co.,Ltd. |