CN102136593A - Fluid flow battery galvanic pile structure for feeding liquid by using insulating plate and fluid flow battery comprising same - Google Patents
Fluid flow battery galvanic pile structure for feeding liquid by using insulating plate and fluid flow battery comprising same Download PDFInfo
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- CN102136593A CN102136593A CN2011100420555A CN201110042055A CN102136593A CN 102136593 A CN102136593 A CN 102136593A CN 2011100420555 A CN2011100420555 A CN 2011100420555A CN 201110042055 A CN201110042055 A CN 201110042055A CN 102136593 A CN102136593 A CN 102136593A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/30—Hydrogen technology
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Abstract
The invention provides a fluid flow battery galvanic pile structure for feeding liquid by using an insulating plate and a fluid flow battery comprising the same. The galvanic pile comprises two end plates 1, two multi-flow channel insulating plates 2, two main collector plates 3 and a single battery pack 4, wherein an electrolyte inlet/outlet 5 and an embedded flow channel 6 are reserved on the two multi-flow channel insulating plates 2. The invention also relates to a galvanic pile combination mode. The galvanic pile combined in the combination mode comprises two end plates 1 and two or more sub-galvanic piles 13; and the sub-galvanic piles 13 are galvanic pile structures from which the end plates are removed. In the galvanic pile structure, an electrolyte enters or exits the galvanic pile from holes and flow channels of the insulating plates; the end plates of the galvanic pile only have an effect of fixing the galvanic pile; therefore, the requirement on the machining precision of the end plates of the galvanic pile is greatly reduced; and assembly difficulties of the galvanic pile are reduced. Simultaneously, the galvanic pile structure also has the advantages that: the galvanic pile structure is easy to combine; and galvanic pile groups on different scales can be assembled simply and conveniently by adopting the galvanic pile combination mode provided by the invention.
Description
Technical field
The present invention relates to the manufacturing field of flow battery, particularly the design of flow battery electric pile structure and manufacturing.
Background technology
Fossil energy exhausted day by day and since the excessively serious environmental pollution of using fossil energy to cause make research and utilize regenerative resource to become the grand strategy of countries in the world energy security and sustainable development on a large scale.Regenerative resource (as wind energy, solar energy, oceanic energy and small power station etc.) generating has unstable and discontinuous characteristics, need exploitation and build supporting energy-storage system to guarantee the continuous and steady of renewable energy power generation and power supply, particularly large-scale wind electricity is incorporated into the power networks and carries out peak regulation and frequency modulation, guarantee the quality of grid generation.In existing energy storage scheme, flow battery (Flow Redox Cell) because have the energy efficiency height, capacitance of storage is big, addressing is free and advantage such as with low cost, is considered to be hopeful most to be applied to the energy storage scheme of extensive energy storage electric power storage occasion.In addition, efficient flow battery also can be used for " peak load shifting " of thermal power generation and nuclear power station electrical network; The emergency power supply of unusual time such as natural calamity, war, the stand-by station in important military base etc.; Through particular design and manufacturing, it also can replace lead acid accumulator to be used as the electrical source of power of submarine submerge.
Flow battery is by Thaller.L.H.(NASA Lewis Research Center, Cleveland, United States) in a kind of electrochemical energy storage notion of proposition in 1974.Flow battery partly is made up of pile, electrolyte solution and electrolyte storage donor system etc.With different in active material in the common storage battery is comprised in the positive and negative electrode of battery, the positive and negative electrode active material in the flow battery is dissolved in the electrolyte solution respectively, and is stored in two fluid reservoirs.When battery operated, the positive and negative electrode electrolyte solution flows into pile from fluid reservoir under the driving of pump, oxidation-reduction reaction takes place on inert electrode, flows out pile then and returns fluid reservoir.By electrolyte solution circulating in battery, finish the mutual conversion of electric energy and chemical energy, realize energy storage and power supply.
Pile is one of core of flow battery.General, the pile of flow battery adopts bipolar heap formula structure, and single pile realizes that by a plurality of oxidation-reduction reactions that carry out the monocell of charge and discharge process is formed, the shared bipolarity collector plate of adjacent two monocells, a plurality of monocells are connected by the filter press mode and are assembled into pile.Electrolyte is distributed to each monocell by the runner of arranging in the pile after entering pile under the driving of pump.General, the electrolyte import and export of pile is arranged on the end plate.The main effect of end plate is that the monocell assembly (as electrolyte water conservancy diversion frame, bipolar plates, electrode and barrier film etc.) that pile is stacked is fixed and clamped, and it is the topmost stress unit of pile.End plate feed liquor pattern need be punched on end plate, require end plate to have higher surface smoothness simultaneously, make closely to contact between end plate and the monocell group, thereby guarantee that electrolyte can not spilt by the slit of end plate and monocell group, and influence the sealing effectiveness of whole stack.Therefore, end plate feed liquor pattern proposes high requirement for the machining accuracy of pile end plate and the assembly precision of pile, has increased difficulty for the manufacturing of pile.
Summary of the invention
In order to solve the weak point of end plate feed liquor pattern, the invention provides a kind of flow battery electric pile structure of insulation board feed liquor and comprise the flow battery of this pile, compare with end plate feed liquor pattern, insulation board feed liquor pattern greatly reduces the assembling difficulty of the difficulty of processing and the pile of pile assembly.
For achieving the above object, technical scheme of the present invention is: the flow battery pile that the present invention relates to comprises two end plates 1, two multithread road insulation boards 2, two main collector plate 3 and monocell groups 4; Be provided with electrolyte import and export 5 and embedded runner 6 on the multithread road insulation board 2.
Multithread of the present invention road insulation board 2 is made by corrosion resistant electronic isolation material, includes but not limited to PE, PVC or PP; Its thickness is 1 ~ 10cm, and height is identical with the monocell of monocell group with width; Its thickness direction side is provided with electrolyte and imports and exports 5, and this mouthful links to each other with the electrolyte transfer pipeline of flow battery, is the passage of electrolyte turnover pile; Its height and width side are provided with electrolyte stream port 7, and this mouthful communicates with the sprue of battery pack; Electrolyte import and export 5 and electrolyte stream port 7 are communicated by L shaped embedded runner 6, and its diameter is 1 ~ 5cm.
The electric transmission interface that main collector plate 3 of the present invention is pile and external circuit is made by the material with high electronic conductivity, includes but not limited to copper coin or graphite cake; Its area is identical with the single-cell electrodes area of monocell group 4, or its length and width limit respectively increases by 0.1 ~ 1cm than electrode length and width limit.
The invention still further relates to a kind of compound mode of pile, the pile group of compound mode composition comprises two end plates 1, two or more sub-piles 13 thus; Described sub-pile 13 removes header portion for above-mentioned electric pile structure; The compound mode of pile is that each sub-pile is arranged formation one row along multithread road insulation board normal direction, and the multithread road insulation board of adjacent two sub-piles is adjacent to back-to-back, and pile group two ends are fixed with end plate; Can connect also can be in parallel for circuit between each sub-pile.
The invention still further relates to the flow battery that comprises this electric pile structure.
Advantage of the present invention and good effect show as: the flow battery electric pile structure of insulation board feed liquor provided by the present invention, electrolyte is by the hole and the runner turnover pile of insulation board, the pile end plate only plays the fixedly effect of pile, the requirement on machining accuracy that this greatly reduces for the pile end plate has reduced the assembling difficulty of pile.Simultaneously, this electric pile structure also has the advantage that is easy to make up, and adopts pile compound mode provided by the invention, can assemble the pile group of different scales simply and easily.
Description of drawings
Fig. 1 is the structural representation of the flow battery pile of insulation board feed liquor;
Fig. 2 is the decomposition texture schematic diagram of the flow battery pile of insulation board feed liquor;
Fig. 3 is the structural representation of multithread road insulation board of the flow battery pile of insulation board feed liquor;
The structural representation of the pile group that Fig. 4 is made up of the sub-pile of the flow battery of insulation board feed liquor;
Fig. 5 is the structural representation of flow battery.
Identify in the accompanying drawing: 1-multithread road end plate; 2-multithread road insulation board; 3-master's collector plate; 4-monocell group; 5-electrolyte is imported and exported; The embedded runner of 6-; 7-electrolyte stream port; The 8-monocell; 9-electrolyte water conservancy diversion frame; The 10-bipolar plates; The 11-electrode; The 12-barrier film; 13-pile; The 14-pile; The anodal electrolyte fluid reservoir of 15-; 16-negative pole electrolyte fluid reservoir; The 17-pump.
Specific embodiments
Adopt flow battery electric pile structure provided by the invention to manufacture and design pile, its main points are that pile comprises two end plates 1, two multithread road insulation boards 2, two main collector plate 3 and monocell groups 4; Be provided with electrolyte import and export 5 and embedded runner 6 on the multithread road insulation board 2.End plate 1 is made by the metal of high mechanical properties, includes but not limited to steel plate or aluminium sheet, and thickness is 1 ~ 8cm.Multithread road insulation board 2 is made by corrosion resistant electronic isolation material, includes but not limited to PE, PVC or PP; Its thickness is 1 ~ 10cm, and height is identical with the monocell of monocell group with width; Its thickness direction side is provided with electrolyte and imports and exports 5; Its height and width side are provided with electrolyte stream port 7; Electrolyte import and export 5 and electrolyte stream port 7 are communicated by L shaped embedded runner 6, and its diameter is 1 ~ 5cm.Main collector plate 3 is made by the material with high electronic conductivity, includes but not limited to copper coin or graphite cake; Its area is identical with the single-cell electrodes area of monocell group 4, or its length and width limit respectively increases by 0.1 ~ 1cm than electrode length and width limit.Monocell group 4 is composed in series by at least two monocells 8, and each monocell is made up of electrolyte water conservancy diversion frame 9, bipolar plates 10, electrode 11 and barrier film 12; Described electrolyte water conservancy diversion frame 9 is made by corrosion resistant electronic isolation material, includes but not limited to PE, PVC or PP; Described bipolar plates 10 is conductive plastic plate or graphite cake; Be mechanical connection or laser welding between electrolyte water conservancy diversion frame 9 and the bipolar plates 10; Described electrode 11 is graphite felt or graphite cake, and electrode area is 100 ~ 20000cm
2Described barrier film 12 can be selected anion-exchange membrane, cation-exchange membrane, composite membrane, PP felt, microporous glass fiber film or supermolecule microporous PE film for use; The thickness of described monocell 8 is 0.5 ~ 3cm, and the power of described monocell group 4 is 0.1 ~ 500kW.The pile group of electric pile structure composition comprises two end plates 1, two or more sub-piles 13 thus; Described sub-pile 13 removes header portion for above-mentioned electric pile structure; The compound mode of pile is that each sub-pile is arranged formation one row along multithread road insulation board normal direction, and the multithread road insulation board of adjacent two sub-piles is adjacent to back-to-back, and pile group two ends are fixed with end plate; Can connect also can be in parallel for circuit between each sub-pile.
This electric pile structure is applied to all vanadium ion redox flow battery, during battery charging and discharging, following reaction takes place at electrode surface:
Anodal:
VO
2+＋2H
++?e?←→?VO
2+＋H
2O
Negative pole:
V
2+?←→?V
3+＋e
According to the structural group packed battery of Fig. 4, and carry out performance test.
End plate is a steel plate, and thickness is 3cm; Multithread road insulation board is the PE plate, and thickness is 5cm, and area is 60cm * 40cm, and embedded runner diameter is 1.5cm; Main collector plate is a copper coin, and area is identical with the single-cell electrodes area; Monocell quantity is 10 joints in the monocell group, and electrolyte water conservancy diversion frame is made by PE, and bipolar plates is a conductive plastic plate, is laser welding between electrolyte water conservancy diversion frame and the bipolar plates, and electrode is a graphite felt, and area is 2000cm
2, barrier film is selected cation-exchange membrane for use, and the thickness of monocell is 1.5cm, and sub-pile power is 2.5kW.The all vanadium ion redox flow battery capacity of preparation is 10kWh.At 80mA/cm
2Discharge and recharge under the condition, the voltage efficiency of battery is 83%, energy efficiency is 82.5%, moving 100 its capacity attenuation rates of circulation back is 0.5%.
End plate is a steel plate, and thickness is 3cm; Multithread road insulation board is the PE plate, and thickness is 5cm, and area is 80cm * 60cm, and embedded runner diameter is 2cm; Main collector plate is a copper coin, and area is identical with the single-cell electrodes area; Monocell quantity is 20 joints in the monocell group, and electrolyte water conservancy diversion frame is made by PE, and bipolar plates is a conductive plastic plate, is laser welding between electrolyte water conservancy diversion frame and the bipolar plates, and electrode is a graphite felt, and area is 4000cm
2, barrier film is selected cation-exchange membrane for use, and the thickness of monocell is 1.5cm, and sub-pile power is 5kW.The all vanadium ion redox flow battery capacity of preparation is 20kWh.At 80mA/cm
2Discharge and recharge under the condition, the voltage efficiency of battery is 81%, energy efficiency is 80%, moving 100 its capacity attenuation rates of circulation back is 0.5%.
With 2 embodiment, 1 described pile, adopt pile compound mode of the present invention to form the pile group.Circuit adopts series system between pile, and pile group power is 5kW.At 80mA/cm
2Discharge and recharge under the condition, the voltage efficiency of battery is 81.5%, energy efficiency is 80%, moving 100 its capacity attenuation rates of circulation back is 0.5%.
Claims (7)
1. the flow battery electric pile structure of an insulation board feed liquor is characterized in that: pile comprises two end plates 1, two multithread road insulation boards 2, two main collector plate 3 and monocell groups 4; Be provided with electrolyte import and export 5 and embedded runner 6 on the multithread road insulation board 2.
2. the flow battery electric pile structure of a kind of insulation board feed liquor according to claim 1 is characterized in that: described end plate 1 is made by the metal of high mechanical properties, includes but not limited to steel plate or aluminium sheet, and thickness is 1 ~ 8cm.
3. the flow battery electric pile structure of a kind of insulation board feed liquor according to claim 1 is characterized in that: described multithread road insulation board 2 is made by corrosion resistant electronic isolation material, includes but not limited to PE, PVC or PP; Its thickness is 1 ~ 10cm, and height is identical with the monocell of monocell group with width; Its thickness direction side is provided with electrolyte and imports and exports 5; Its height and width side are provided with electrolyte stream port 7; Electrolyte import and export 5 and electrolyte stream port 7 are communicated by L shaped embedded runner 6, and its diameter is 1 ~ 5cm.
4. the flow battery electric pile structure of a kind of insulation board feed liquor according to claim 1 is characterized in that: described main collector plate 3 is made by the material with high electronic conductivity, includes but not limited to copper coin or graphite cake; Its area is identical with the single-cell electrodes area of monocell group 4, or its length and width limit respectively increases by 0.1 ~ 1cm than electrode length and width limit.
5. the flow battery electric pile structure of a kind of insulation board feed liquor according to claim 1, it is characterized in that: described monocell group 4 is composed in series by at least two monocells 8, and each monocell is made up of electrolyte water conservancy diversion frame 9, bipolar plates 10, electrode 11 and barrier film 12; Described electrolyte water conservancy diversion frame 9 is made by corrosion resistant electronic isolation material, includes but not limited to PE, PVC or PP; Described bipolar plates 10 is conductive plastic plate or graphite cake; Be mechanical connection or laser welding between electrolyte water conservancy diversion frame 9 and the bipolar plates 10; Described electrode 11 is graphite felt or graphite cake, and electrode area is 100 ~ 20000cm
2Described barrier film 12 can be selected anion-exchange membrane, cation-exchange membrane, composite membrane, PP felt, microporous glass fiber film or supermolecule microporous PE film for use; The thickness of described monocell 8 is 0.5 ~ 3cm, and the power of described monocell group 4 is 0.1 ~ 500kW.
6. pile compound mode is characterized in that: the pile group formed of compound mode comprises two end plates 1, two or more sub-piles 13 thus; Described sub-pile 13 removes header portion for above-mentioned electric pile structure; The compound mode of pile is that each sub-pile is arranged formation one row along multithread road insulation board normal direction, and the multithread road insulation board of adjacent two sub-piles is adjacent to back-to-back, and pile group two ends are fixed with end plate; Can connect also can be in parallel for circuit between each sub-pile.
7. the flow battery that comprises this electric pile structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100420555A CN102136593A (en) | 2011-02-22 | 2011-02-22 | Fluid flow battery galvanic pile structure for feeding liquid by using insulating plate and fluid flow battery comprising same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100420555A CN102136593A (en) | 2011-02-22 | 2011-02-22 | Fluid flow battery galvanic pile structure for feeding liquid by using insulating plate and fluid flow battery comprising same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623722A (en) * | 2012-04-13 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
| CN103887539A (en) * | 2012-12-20 | 2014-06-25 | 中国科学院大连化学物理研究所 | Zinc-nickel flow battery structure and zinc-nickel flow battery system |
| CN103988352A (en) * | 2011-12-20 | 2014-08-13 | 联合工艺公司 | Flow battery with enhanced durability |
| CN105047946A (en) * | 2015-06-30 | 2015-11-11 | 中国东方电气集团有限公司 | Cell stack and cell unit thereof |
| CN108134106A (en) * | 2018-01-10 | 2018-06-08 | 保定百能汇通新能源科技有限公司 | A kind of compound bipolar plates and preparation method thereof |
| CN108411327A (en) * | 2018-06-05 | 2018-08-17 | 深圳氢爱天下健康科技控股有限公司 | Safety inhales hydrogen machine |
| CN118231722A (en) * | 2024-03-12 | 2024-06-21 | 北京普能世纪科技有限公司 | Flow battery |
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| CN101047254A (en) * | 2006-03-27 | 2007-10-03 | 中国科学院大连化学物理研究所 | High power oxidation, reduction liquid energy-storage pile modular structure and its group mode |
| CN101651195A (en) * | 2009-08-03 | 2010-02-17 | 湖南维邦新能源有限公司 | Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing same |
| CN201985208U (en) * | 2011-02-22 | 2011-09-21 | 上海林洋储能科技有限公司 | Flow redox cell pile structure with insulation plates for electrolyte feed |
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| JPH0732023B2 (en) * | 1986-08-02 | 1995-04-10 | 東邦レーヨン株式会社 | Bipolar plate for redox flow battery |
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| CN101651195A (en) * | 2009-08-03 | 2010-02-17 | 湖南维邦新能源有限公司 | Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing same |
| CN201985208U (en) * | 2011-02-22 | 2011-09-21 | 上海林洋储能科技有限公司 | Flow redox cell pile structure with insulation plates for electrolyte feed |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103988352A (en) * | 2011-12-20 | 2014-08-13 | 联合工艺公司 | Flow battery with enhanced durability |
| CN103988352B (en) * | 2011-12-20 | 2016-11-09 | 联合工艺公司 | There is the flow battery strengthening durability |
| CN102623722A (en) * | 2012-04-13 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
| CN102623722B (en) * | 2012-04-13 | 2014-06-18 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
| CN103887539A (en) * | 2012-12-20 | 2014-06-25 | 中国科学院大连化学物理研究所 | Zinc-nickel flow battery structure and zinc-nickel flow battery system |
| CN103887539B (en) * | 2012-12-20 | 2017-03-15 | 中国科学院大连化学物理研究所 | A kind of Zn-Ni liquid battery structure and Zn-Ni liquid battery system |
| CN105047946A (en) * | 2015-06-30 | 2015-11-11 | 中国东方电气集团有限公司 | Cell stack and cell unit thereof |
| CN105047946B (en) * | 2015-06-30 | 2017-10-27 | 中国东方电气集团有限公司 | Battery pile and its battery unit |
| CN108134106A (en) * | 2018-01-10 | 2018-06-08 | 保定百能汇通新能源科技有限公司 | A kind of compound bipolar plates and preparation method thereof |
| CN108411327A (en) * | 2018-06-05 | 2018-08-17 | 深圳氢爱天下健康科技控股有限公司 | Safety inhales hydrogen machine |
| CN118231722A (en) * | 2024-03-12 | 2024-06-21 | 北京普能世纪科技有限公司 | Flow battery |
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Application publication date: 20110727 |