JPS63164172A - Shunt current erasing device for redox flow battery - Google Patents
Shunt current erasing device for redox flow batteryInfo
- Publication number
- JPS63164172A JPS63164172A JP61308188A JP30818886A JPS63164172A JP S63164172 A JPS63164172 A JP S63164172A JP 61308188 A JP61308188 A JP 61308188A JP 30818886 A JP30818886 A JP 30818886A JP S63164172 A JPS63164172 A JP S63164172A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- positive electrode
- positive
- shunt current
- negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims description 47
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003014 ion exchange membrane Substances 0.000 claims description 5
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910001430 chromium ion Inorganic materials 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 9
- 239000011651 chromium Substances 0.000 description 5
- -1 iron ions Chemical class 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/70—Arrangements for stirring or circulating the electrolyte
- H01M50/77—Arrangements for stirring or circulating the electrolyte with external circulating path
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
-
- 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
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はレドックス金フロー電池のシャントカレントを
消去するレドックス・フロー電池のシャントカレント消
去装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shunt current eliminating device for a redox flow battery that eliminates shunt current in a redox gold flow battery.
［従来の技術］
電力貯蔵設備は発電設備の有効利用、電力の安定供給上
重要である。現在新型電池の開発が積極的に進められお
り、その一つにレドックス・フロー電池がある。[Background Art] Power storage equipment is important for effective use of power generation equipment and stable supply of power. Currently, new types of batteries are being actively developed, and one of them is the redox flow battery.
レドックス・フロー電池はクロムイオン又は鉄イオン等
のように原子価が変化し得るイオン（レドックス・イオ
ン）の溶液をタンクに貯蔵しておき、これをポンプで電
解槽に供給して、充電及び放電を行なうものである。In a redox flow battery, a solution of ions (redox ions) whose valence can change, such as chromium ions or iron ions, is stored in a tank, and this is supplied to an electrolytic cell using a pump for charging and discharging. This is what we do.
第５図は従来のレドックス・フロー電池の概略図である
。第５図において、１はクロムイオンＣｒ”＋の溶液が
貯蔵されている負極側タンク、２は鉄イオンＦｅ３＋の
溶液が貯蔵されている正極側タンク、３はクロムイオン
Ｃｒ２＋の溶液及び鉄イオンＦｅ３“の溶液が反応する
セル、４はセル３にクロムイオンＣｒ２＋の溶液を供給
するポンプ、５はセル３に鉄イオンＦｅ３＋の溶液を供
給するポンプである。FIG. 5 is a schematic diagram of a conventional redox flow battery. In Fig. 5, 1 is a negative electrode side tank in which a solution of chromium ions Cr''+ is stored, 2 is a positive electrode side tank in which a solution of iron ions Fe3+ is stored, and 3 is a tank in which a solution of chromium ions Cr2+ and iron ions Fe3 are stored. 4 is a pump that supplies a solution of chromium ions Cr2+ to the cell 3, and 5 is a pump that supplies a solution of iron ions Fe3+ to the cell 3.
なお、セル３の負極でクロムイオンＣｒ２＋（７）溶液
から放出される電子は図示しない外部回路を介してセル
３の正極に送られる。Note that electrons released from the chromium ion Cr2+(7) solution at the negative electrode of the cell 3 are sent to the positive electrode of the cell 3 via an external circuit (not shown).
次に、従来のレドックス・フロー電池の放電時の動作に
ついて説明する。ポンプ４及び５はそれぞれタンク１及
び２に貯蔵されているクロムイオンＣｒ２”（７）溶液
及び鉄イオンＰｅ３＋の溶液をセル３の負極及び正極に
それぞれ供給する。負極に供給されたクロムイオンＣｒ
２＋の溶液は電子を放出してクロムイオンＣ「３＋に酸
化される。酸化したクロムイオンＣｒ３＋の溶液は負極
側タンク１に戻る。又、正極に供給された秋イオンＦｅ
””（７）溶液は電子を得て鉄イオンＦｅ２＋に還元さ
れる。還元された鉄イオンＰｃ””Ｏ溶液は正極側タン
ク２に戻る。この反応で過剰になった塩素Ｃ１−はイオ
ン交換膜を介して負極に移動し、負極での塩素Ｃ１−の
不足を補う。Next, the operation of the conventional redox flow battery during discharging will be explained. Pumps 4 and 5 supply the chromium ion Cr2''(7) solution and the iron ion Pe3+ solution stored in tanks 1 and 2, respectively, to the negative and positive electrodes of the cell 3.The chromium ion Cr supplied to the negative electrode
The 2+ solution emits electrons and is oxidized to chromium ion C (3+).The oxidized chromium ion Cr3+ solution returns to the negative electrode side tank 1.In addition, the fall ion Fe supplied to the positive electrode
``''(7) The solution gains electrons and is reduced to iron ions Fe2+. The reduced iron ion Pc""O solution returns to the positive electrode side tank 2. Excessive chlorine C1- in this reaction moves to the negative electrode via the ion exchange membrane and compensates for the lack of chlorine C1- at the negative electrode.
次に、第６図は第５図に示したセル３の原理図である。Next, FIG. 6 is a diagram showing the principle of the cell 3 shown in FIG.
第６図において、１０はイオン交換膜、１１は負極側の
カーボンファイバ電極、１２は負極側のバイポーラ板、
１３は正極側のカーボンファイバ電極、１４は正極側の
カーボンファイバ電極である。In FIG. 6, 10 is an ion exchange membrane, 11 is a carbon fiber electrode on the negative electrode side, 12 is a bipolar plate on the negative electrode side,
13 is a carbon fiber electrode on the positive electrode side, and 14 is a carbon fiber electrode on the positive electrode side.
セル３内での充電反応及び放電反応は以下のようになる
。The charging reaction and discharging reaction within the cell 3 are as follows.
（１）放電反応
正極 ＦＯ”＋ ｅ −＝Ｆｅ２”負極 ＣＩ”
” −Ｃｒ”＋ ｅ全体 Ｆｅ３＋＋ Ｃｒ
２” −＝ Ｐｅ２”＋ Ｏｒ３＋（２〉充電反応
正極 Ｐｅ３＋十ｅ ＋Ｆｅ”
負極 Ｃｒ２＋＝Ｏｒ”＋ ｅ
全体 Ｐａ ＋ Ｃｒ −Ｆｅ”＋ Ｃｒ３”
３＋ ２＋
ところで、一般に電池の効率は電池の充電電気口に対す
る放電電気量の比であり、この比が高いことが重要であ
る。レドックス・フロー電池の場合、電池本体の内部抵
抗及び電解液の運転のための圧損がこの効率を低下させ
る要因になる。(1) Discharge reaction positive electrode FO”+ e −=Fe2” negative electrode CI”
"-Cr"+ e whole Fe3++ Cr
2” −= Pe2”+ Or3+ (2> Charging reaction positive electrode Pe3+10e + Fe” negative electrode Cr2+=Or”+ e Overall Pa + Cr −Fe”+ Cr3”
3+ 2+ Generally, the efficiency of a battery is the ratio of the amount of electricity discharged to the charging port of the battery, and it is important that this ratio is high. In the case of a redox flow battery, the internal resistance of the battery body and the pressure drop due to operation of the electrolyte are factors that reduce this efficiency.
第７図は第５図に示した従来のレドックス・フロー電池
の電圧分布を示す図である。放電反応によって生じた起
電力から電流を取り出す場合、第７図（ａ）に示すよう
に電流■が流れ、電圧は第７図（ｂ）に示すように分布
する。このとき、正極液及び負極液の供給流路にシャン
トカレント電流ｉが流れる。このシャントカレント電流
りは、充電、放電及び停電時に生じるもので、正極液に
接している正極及び負極液に接している負極の各電極間
に電位差かあるため、正極液及び負極液の供給流路Ｊｐ
、びにセル３によって電気回路が形成されることが原因
になっている。充電時及び放電時のシャントカレントロ
スは効率の低下に、又停電時のシャントカレントロスは
充電されたセル３内の正極液、負極液の放電をもたらし
、次の起動時に停電前の連続運転状態における電圧、電
流状態に達するまでの時間を長くしてしまう。FIG. 7 is a diagram showing the voltage distribution of the conventional redox flow battery shown in FIG. When a current is extracted from the electromotive force generated by the discharge reaction, a current ■ flows as shown in FIG. 7(a), and the voltage is distributed as shown in FIG. 7(b). At this time, a shunt current i flows through the supply channels of the positive and negative electrode liquids. This shunt current occurs during charging, discharging, and power outages, and because there is a potential difference between the positive electrode that is in contact with the positive electrode liquid and the negative electrode that is in contact with the negative electrode liquid, the supply flow of the positive and negative electrode liquids is Road JP
This is due to the fact that an electric circuit is formed by the cells 3 and 3. Shunt current loss during charging and discharging causes a decrease in efficiency, and shunt current loss during power outage causes discharge of the positive and negative electrolyte in the charged cell 3, and the continuous operation state before the power outage occurs at the next startup. This increases the time it takes to reach the voltage and current conditions at .
［発明が解決しようとする問題点］
このシャントカレントロスを減少させるには、正極液、
負極液の流路の電気抵抗を大きくすればよい。即ち、正
極液、負極液の流路を長くしたり、流路の断面積を小さ
くすればよいことになる。[Problems to be solved by the invention] In order to reduce this shunt current loss, positive electrode liquid,
What is necessary is to increase the electrical resistance of the negative electrode liquid flow path. That is, it is sufficient to lengthen the flow paths of the positive and negative electrode liquids or to reduce the cross-sectional area of the flow paths.
しかし、流路を長くしたり、流路の断面積を小さくする
と、正極液、負極液を循環させるポンプ４．５の圧損が
大きくなってしまうという問題があった。現在、このよ
うな相反する現象を考慮して、シャントカレントロスを
最小とするレドックス・フロー電池の正極液、負極液の
流路を設計している。However, when the flow path is lengthened or the cross-sectional area of the flow path is reduced, there is a problem in that the pressure loss of the pump 4.5 that circulates the positive and negative electrode liquids becomes large. Currently, in consideration of these contradictory phenomena, we are designing the channels for the positive and negative electrolytes in redox flow batteries that minimize shunt current loss.
又、このようなレドックス・フロー電池を瞬停用に用い
た場合、充電後に充電された状態の正極液、負極液は上
述した電気回路により電力が消費され、セル３内の正極
液、負極液は放電状態になる。このような状態でポンプ
４．５を起動させると、充電状態にある正極液、負極液
はセル３内に送り込まれ、定常状態の起電力を発生させ
るのに第８図に示すように時間がかかるという問題があ
った。In addition, when such a redox flow battery is used for instantaneous power outages, power is consumed by the above-mentioned electric circuit for the positive and negative electrode liquids in the charged state after charging, and the positive and negative electrode liquids in the cell 3 are becomes a discharge state. When the pump 4.5 is started in this state, the charged positive and negative electrode liquids are pumped into the cell 3, and it takes time to generate a steady-state electromotive force as shown in Figure 8. There was a problem that it took a while.
本発明は上記問題点を解決するためになされたもので、
効率、停止状態から起動時の特性を改良したレドックス
・フロー電池のシャントカレントロスの消去装置を提供
することを目的とする。The present invention has been made to solve the above problems,
The object of the present invention is to provide a device for eliminating shunt current loss in a redox flow battery, which has improved efficiency and characteristics when starting from a stopped state.
［問題点を解決するための手段］
そこで、本発明ではイオン交換膜を挟んで設けられた負
極及び正極から構成されるセルに原子価の変化し得る負
極液及び正極液をそれぞれ供給する流路に、正極液及び
負極液を断続的にセルに送り負極液及び正極液を介して
シャントカレントが流れないようにする遮断装置を設け
たレドックス・フロー電池のシャントカレントロスの消
去装置を構成する。[Means for Solving the Problems] Therefore, in the present invention, a flow channel is provided for supplying a negative electrode liquid and a positive electrode liquid whose valences can be changed to a cell composed of a negative electrode and a positive electrode provided with an ion exchange membrane in between. A device for eliminating shunt current loss in a redox flow battery is constructed, which is provided with a shutoff device that intermittently sends a positive electrode liquid and a negative electrode liquid to the cell and prevents a shunt current from flowing through the negative electrode liquid and positive electrode liquid.
Ｃ作 用］
上記構成のレドックス・フロー電池のシャントカレント
ロスの消去装置は、遮断装置を介して負極液及び正極液
をセルに断続的に送り、負極液及び正極液を介してシャ
ントカレントが流れるのを防ぐ。C action] The shunt current loss elimination device of the redox flow battery configured as described above intermittently sends the negative electrode liquid and the positive electrode liquid to the cell via the cutoff device, and causes the shunt current to flow through the negative electrode liquid and the positive electrode liquid. prevent
［実施例］
以下、本発明の一実施例を添付図面を参照して詳細に説
明する。[Example] Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明に係るレドックス・フロー電池のシャン
トカレント消去装置の概略図である。第１図において、
１はクロムイオンＣｒ２＋の溶液が貯蔵されている負極
側タンク、２は鉄イオンＦｅ３＋の溶液が貯蔵されてい
る正極側タンク、３はクロムイオンＣ「２＋の溶液及び
鉄イオンＦｅ３＋の溶液が反応するセル、４はセル３に
クロムイオンＣ「２＋の溶液を供給するポンプ、５はセ
ル３に鉄イオンＦｅ３＋の溶液を供給するポンプ、６は
負極液及び正極液を負極及び正極に供給する流路にそれ
ぞれ設けられており、セル３に負極液及び正極液を断続
的に送ることによって、正極液及び負極液の供給流路並
びにセル３によって電気回路が形成されないようにする
遮断装置である。FIG. 1 is a schematic diagram of a shunt current eliminating device for a redox flow battery according to the present invention. In Figure 1,
1 is a tank on the negative side where a solution of chromium ions Cr2+ is stored, 2 is a tank on the positive side where a solution of iron ions Fe3+ is stored, and 3 is a tank where a solution of chromium ions C2+ and a solution of iron ions Fe3+ react. A cell, 4 is a pump that supplies a solution of chromium ion C2+ to the cell 3, 5 is a pump that supplies a solution of iron ions Fe3+ to the cell 3, 6 is a flow path that supplies the negative electrode liquid and the positive electrode liquid to the negative electrode and the positive electrode This is a cutoff device that prevents an electric circuit from being formed by the supply channels for the cathode liquid and the anode liquid and the cells 3 by intermittently sending the anode liquid and the cathode liquid to the cells 3.
遮断装置６は第２図に示すように負極側タンク１及び正
極側タンクから供給される負極液及び正極液を断続的に
送る点滴装置によって構成されている。従って、負極液
及び正極液はセル３に送られるが、セル３の負極及び正
極はそれぞれ電気的に遮断されているので上述したシャ
ントカレント電流ｉは流れない。As shown in FIG. 2, the shutoff device 6 is constituted by a drip device that intermittently sends the negative electrode liquid and positive electrode liquid supplied from the negative electrode side tank 1 and the positive electrode side tank. Therefore, the negative electrode liquid and the positive electrode liquid are sent to the cell 3, but since the negative electrode and the positive electrode of the cell 3 are electrically cut off, the above-mentioned shunt current i does not flow.
なお、本実施例では点滴装置によって遮断装置を構成し
たが、これに限るものではなく、例えば第３図に示すよ
うな羽根車によって構成してもよい。この羽根車を第４
図に示すように各セル毎に設けることにより、シャント
カレント電流ｉが流れるのを防止できる。即ち、羽根車
により負極液及び正極液が遮断される（空間ができる）
ため、シャントカレント電流ｉが流れるのを防止できる
のである。In this embodiment, the cutoff device is configured by a drip device, but it is not limited to this, and may be configured by an impeller as shown in FIG. 3, for example. This impeller is the fourth
By providing each cell as shown in the figure, it is possible to prevent the shunt current i from flowing. In other words, the impeller blocks the negative and positive electrode fluids (a space is created).
Therefore, it is possible to prevent the shunt current i from flowing.
［発明の効果］
以上説明したように本発明によれば、負極液及び正極液
をセルに送る流路に負極液及び正極液を断続的に送り、
負極液及び正極液を介してシャントカレント電流が流れ
ないようにする遮断装置を設けることにより、正極液、
負極液を循環させるポンプの圧損が大きくならないレド
ックス・フロー電池のシャントカレント消去装置が得ら
れる。[Effects of the Invention] As explained above, according to the present invention, the anode solution and the cathode solution are intermittently sent to the channel that sends the anode solution and the cathode solution to the cell,
By providing a cutoff device that prevents shunt current from flowing through the negative and positive electrode liquids, the positive and negative electrode liquids can be
A shunt current eliminating device for a redox flow battery in which the pressure drop of a pump that circulates the negative electrode liquid does not become large can be obtained.
又、シャントカレント電流が流れないので、充電された
状態の正極液、負極液が放電状態にならず、定常状態の
起電力を短時間で発生させることができるレドックス・
フロー電池のシャントカレント消去装置が得られるとい
う効果を奏する。In addition, since no shunt current flows, the charged catholyte and anode solution do not become discharged, and redox electromotive force can be generated in a short time in a steady state.
This has the effect of providing a shunt current erasing device for a flow battery.
第１図は本発明に係るレドックス・フロー電池のシャン
トカレント消去装置の概略図、第２図、第３図及び第４
図は第１図に示した遮断装置の説明図、第５図は従来の
レドックス・フロー電池の概略図、第６図は第５図に示
したセル３の原理図、第７図はシャントカレント電流発
生の説明図、第８図はシャントカレント電流による悪影
響の説明図である。
１・・・負極側タンク、２・・・正極側タンク、３・・
・セル、４．５・・・ポンプ、６・・・遮断装置。FIG. 1 is a schematic diagram of a shunt current elimination device for a redox flow battery according to the present invention, FIGS. 2, 3, and 4.
The figure is an explanatory diagram of the disconnection device shown in Fig. 1, Fig. 5 is a schematic diagram of a conventional redox flow battery, Fig. 6 is a principle diagram of the cell 3 shown in Fig. 5, and Fig. 7 is a shunt current diagram. FIG. 8 is an explanatory diagram of current generation, and is an explanatory diagram of the adverse effects caused by shunt current. 1... Negative electrode side tank, 2... Positive electrode side tank, 3...
・Cell, 4.5... Pump, 6... Shutoff device.
Claims (4)
れた負極及び正極から構成されているセルに原子価の変
化し得る負極液及び正極液をそれぞれ供給するとともに
、充電時には前記負極及び正極に所定の電圧を印加して
、前記負極液及び正極液に充電反応を生じさせ、放電時
には該充電反応を生じさせた負極液及び正極液に放電反
応を生じさせ、該負極と正極との間に発生する電圧を出
力するレドックス・フロー電池のシャントカレント消去
装置において、前記負極液及び正極液をそれぞれ前記負
極及び正極に供給する流路に、前記負極液及び正極液を
断続的に送り、該負極液及び正極液を介してシャントカ
レント電流が流れないようにする遮断装置を備えたこと
を特徴とするレドックス・フロー電池のシャントカレン
ト消去装置。(1) A cell consisting of an ion exchange membrane and a negative electrode and a positive electrode provided with the ion exchange membrane sandwiched therebetween is supplied with a negative electrode liquid and a positive electrode liquid whose valences can change, and when charging, the negative electrode and the positive electrode liquid are supplied. A predetermined voltage is applied to the positive electrode to cause a charging reaction in the negative electrode liquid and the positive electrode liquid, and during discharging, a discharge reaction is caused in the negative electrode liquid and the positive electrode liquid that caused the charging reaction, and the negative electrode and the positive electrode are connected. In a shunt current erasing device for a redox flow battery that outputs a voltage generated between the two, the negative electrode liquid and the positive electrode liquid are intermittently sent to the flow paths that supply the negative electrode liquid and the positive electrode liquid to the negative electrode and the positive electrode, respectively, A shunt current erasing device for a redox flow battery, comprising a shutoff device that prevents a shunt current from flowing through the negative electrode liquid and the positive electrode liquid.
１項記載のレドックス・フロー電池のシャントカレント
消去装置。(2) A shunt current erasing device for a redox flow battery according to claim 1, wherein a plurality of cells are connected.
項記載のレドックス・フロー電池のシャントカレント消
去装置。(3) The blocking device is a drip device.
A shunt current elimination device for a redox flow battery as described in .
記載のレドックス・フロー電池のシャントカレント消去
装置。(4) A shunt current erasing device for a redox flow battery according to claim 1, wherein the shutoff device is an impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61308188A JPS63164172A (en) | 1986-12-26 | 1986-12-26 | Shunt current erasing device for redox flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61308188A JPS63164172A (en) | 1986-12-26 | 1986-12-26 | Shunt current erasing device for redox flow battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164172A true JPS63164172A (en) | 1988-07-07 |
Family
ID=17977969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61308188A Pending JPS63164172A (en) | 1986-12-26 | 1986-12-26 | Shunt current erasing device for redox flow battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164172A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213964A (en) * | 1988-02-22 | 1989-08-28 | Agency Of Ind Science & Technol | Operating method for redox battery |
| US5733153A (en) * | 1994-07-28 | 1998-03-31 | Mitsubishi Denki Kabushiki Kaisha | Safety connector |
| WO2001076000A1 (en) * | 2000-03-31 | 2001-10-11 | Squirrel Holdings Ltd. | Redox flow battery and method of operating it |
| AT502979B1 (en) * | 2006-05-15 | 2007-06-15 | Funktionswerkstoffe Forschungs | Electrochemical flow module e.g. vanadium redox-flow battery, has flowable device in which electrically nonconducting phase with thickness different from that of electrolyte fluid is given, which increases electrical resistance in circuit |
| JP2008103360A (en) * | 2008-01-15 | 2008-05-01 | Idec Corp | Discrete type terminal board |
| CN102403519A (en) * | 2011-08-19 | 2012-04-04 | 中国电力科学研究院 | Redox flow cell integrated system |
-
1986
- 1986-12-26 JP JP61308188A patent/JPS63164172A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213964A (en) * | 1988-02-22 | 1989-08-28 | Agency Of Ind Science & Technol | Operating method for redox battery |
| US5733153A (en) * | 1994-07-28 | 1998-03-31 | Mitsubishi Denki Kabushiki Kaisha | Safety connector |
| US5823810A (en) * | 1994-07-28 | 1998-10-20 | Mitsubishi Denki Kabushiki Kaisha | Safety connector |
| WO2001076000A1 (en) * | 2000-03-31 | 2001-10-11 | Squirrel Holdings Ltd. | Redox flow battery and method of operating it |
| US6692862B1 (en) | 2000-03-31 | 2004-02-17 | Squirrel Holdings Ltd. | Redox flow battery and method of operating it |
| AT502979B1 (en) * | 2006-05-15 | 2007-06-15 | Funktionswerkstoffe Forschungs | Electrochemical flow module e.g. vanadium redox-flow battery, has flowable device in which electrically nonconducting phase with thickness different from that of electrolyte fluid is given, which increases electrical resistance in circuit |
| WO2007131250A1 (en) * | 2006-05-15 | 2007-11-22 | Cellstrom Gmbh | Electrochemical flow module with a device for suppressing an electrical shunt current |
| JP2008103360A (en) * | 2008-01-15 | 2008-05-01 | Idec Corp | Discrete type terminal board |
| CN102403519A (en) * | 2011-08-19 | 2012-04-04 | 中国电力科学研究院 | Redox flow cell integrated system |
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