JPH07192749A - Electrolyte flow-through type cell - Google Patents
Electrolyte flow-through type cellInfo
- Publication number
- JPH07192749A JPH07192749A JP5347574A JP34757493A JPH07192749A JP H07192749 A JPH07192749 A JP H07192749A JP 5347574 A JP5347574 A JP 5347574A JP 34757493 A JP34757493 A JP 34757493A JP H07192749 A JPH07192749 A JP H07192749A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electric circuit
- electrolytic solution
- electrolyte
- flow type
- 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.)
- Granted
Links
Classifications
-
- 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
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電解液流通型電池に関
するもので、特に充放電に使用する電池スタック数を適
宜変更し高水準の電流効率を維持し、かつ、電解液循環
用のポンプ動力を低減しシステム効率の向上を図った電
解液流通型電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolyte flow type battery, and particularly to a pump for circulating an electrolyte solution which maintains a high level of current efficiency by appropriately changing the number of battery stacks used for charging and discharging. The present invention relates to an electrolyte flow type battery that reduces power and improves system efficiency.
【０００２】[0002]
【従来技術】従来の電解液流通型電池の例として、レド
ックスフロ−電池について説明する。図７にレドックス
フロ−電池のセルの構造を示す。図示するようにレドッ
クスフロ−電池は、隔膜１００ｃにより仕切られた正極
室１００ａ及び負極室１００ｂを有する電解液流通型電
解槽１００、正極電解液タンク１０１、負極電解液タン
ク１０２、正極電解液を正極室１００ａに供給するポン
プ１０３、負極電解液を負極室１００ｂに供給するポン
プ１０４及びそれらを接続する管で構成されている。ま
た、正極室１００ａには正電極１００ｄ、負極室１００
ｂには負電極１００ｅがそれぞれ設けられている。2. Description of the Related Art A redox flow battery will be described as an example of a conventional electrolyte flow type battery. FIG. 7 shows the structure of a redox flow battery cell. As shown in the figure, the redox flow battery has an electrolytic solution flow type electrolytic cell 100 having a positive electrode chamber 100a and a negative electrode chamber 100b partitioned by a diaphragm 100c, a positive electrode electrolytic solution tank 101, a negative electrode electrolytic solution tank 102, and a positive electrode electrolytic solution. It is composed of a pump 103 for supplying the chamber 100a, a pump 104 for supplying the negative electrode electrolytic solution to the negative electrode chamber 100b, and a pipe connecting them. In addition, the positive electrode chamber 100a includes a positive electrode 100d and a negative electrode chamber 100.
Negative electrodes 100e are provided on b.
【０００３】電解液としてクロムイオン塩酸溶液と鉄イ
オン塩酸溶液を使用する鉄−クロム電池を例に説明す
る。正極電解液タンク１０１には鉄イオン塩酸溶液が貯
えられ、同液はポンプ１０３によって正極室１００ａと
正極電解液タンク１０１とを循環する。負極電解液タン
ク１０２にはクロムイオン塩酸溶液が貯えられ、同液は
ポンプ１０４によって負極室１００ｂと負極電解液タン
ク１０２とを循環する。An iron-chromium battery using a chromium ion hydrochloric acid solution and an iron ion hydrochloric acid solution as an electrolytic solution will be described as an example. The iron ion hydrochloric acid solution is stored in the positive electrode electrolytic solution tank 101, and the solution is circulated between the positive electrode chamber 100 a and the positive electrode electrolytic solution tank 101 by the pump 103. A chromium ion hydrochloric acid solution is stored in the negative electrode electrolytic solution tank 102, and the solution is circulated between the negative electrode chamber 100b and the negative electrode electrolytic solution tank 102 by the pump 104.
【０００４】上記構成のレドックスフロ−電池におい
て、正電極１００ｄ及び負電極１００ｅの間に電圧を印
加して充電を行うと、正極室１００ａでは、 この状態で電気エネルギ−が貯蔵される。放電の場合
は、この逆の反応が起こり外部に電力を取り出すことが
出来る。In the redox flow battery having the above structure, when a voltage is applied between the positive electrode 100d and the negative electrode 100e to perform charging, in the positive electrode chamber 100a, In this state, electric energy is stored. In the case of discharge, the opposite reaction occurs and electric power can be extracted to the outside.
【０００５】レドックスフロ−型電池では、充電または
放電は、上記に示すように、電解液が組成変化すること
で進行し、各セル内の電極自体は変化しないため、充電
又は放電中に、必要に応じて使用セル数を変更すること
が可能となる。特開昭６１−１９３３７５号公報及び、
特開平１−１４６２６９号公報に開示された技術はレド
ックスフロ−電池の上記に示す特徴を利用して、積層し
たレドックスフロ−電池本体にトリミング端子を設け
て、充電／放電運転中に使用セル数を切り替えて電圧調
整を行うものである。In the redox flow type battery, charging or discharging proceeds as the composition of the electrolytic solution changes as described above, and the electrodes themselves in each cell do not change. Therefore, charging or discharging is required during charging or discharging. It is possible to change the number of cells used according to. Japanese Patent Laid-Open No. 61-193375 and
The technology disclosed in Japanese Patent Laid-Open No. 1-146269 utilizes the above-described characteristics of the redox flow battery, and provides trimming terminals on the body of the redox flow battery that is stacked, and the number of cells used during charge / discharge operation. Is switched to adjust the voltage.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、この従
来の方法ではレドックスフロ−電池電圧を調整すること
は可能だが、運転中に不使用セルが生ずることにより電
流効率が低下し、更に、不使用セルに電解液を供給する
ポンプ動力が増加することによりシステム効率が低下す
ると云う問題がある。即ち、充電又は放電中に使用セル
数を切り替える場合、不使用セルに電解液を供給し続け
ると、セル内電極上で電解液の自己放電が進行し電流効
率の低下を招く。また不使用セルに対して無用な電解液
を供給することになるためポンプ動力の損失も増大する
ことになる（図２参照）。特に、規模が大きく、電池セ
ル数が複数個設定されるシステムでは、上記の影響が大
きくなり、ポンプ動力を含めたシステム効率が低下する
と云う問題点がある。However, although it is possible to adjust the redox flow battery voltage by this conventional method, the current efficiency is lowered due to the generation of unused cells during operation, and further, the unused cells are There is a problem that the system efficiency decreases due to an increase in pump power for supplying the electrolytic solution to the. That is, when the number of used cells is switched during charging or discharging, if the electrolytic solution is continuously supplied to the unused cells, the self-discharge of the electrolytic solution progresses on the in-cell electrodes, resulting in a decrease in current efficiency. Further, since unnecessary electrolyte is supplied to the unused cells, the loss of pump power also increases (see FIG. 2). In particular, in a system having a large scale and a plurality of battery cells set, there is a problem that the above-mentioned influence becomes great and system efficiency including pump power is lowered.
【０００７】本発明は上述の点に鑑みてなされたもの
で、上記問題点を除去し、複数個の電池スタック（複数
個の電池セルを積層化したもの）よりなる電池システム
において、使用スタック数を必要に応じて切り替える場
合に、電路接続スイッチおよび電解液供給用電動バルブ
を適宜切り替え可能とすることで、電解液流通型電池の
電流効率の低下を防止すると共にポンプ消費動力を低減
し、ポンプ動力を含めたシステム効率を向上させた電解
液流通型電池を提供することを目的とする。The present invention has been made in view of the above points, and eliminates the above-mentioned problems, and in a battery system including a plurality of battery stacks (a plurality of battery cells stacked), the number of stacks used By switching the electric circuit connection switch and the electric valve for supplying the electrolytic solution as needed, the current consumption of the electrolytic flow type battery can be prevented from decreasing and the power consumption of the pump can be reduced. It is an object of the present invention to provide an electrolyte flow type battery with improved system efficiency including power.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
本発明の請求項１の発明は、隔膜で分けられた正極室及
び負極室からなる電池セルを積層してなる複数個の電池
スタック１〜６と、各極室に電解液を循環させるポンプ
９，１０を有する電解液流通型電池において、図１に示
すように前記電池スタック１〜６の電解液流入口と流出
口の管に電動バルブ１ａ〜６ａ，１ｂ〜６ｂ，１ｃ〜６
ｃ，１ｄ〜６ｄを設けると共に、各電池スタック１〜６
の出力を直列に接続し各接続部の出力を電路開閉器１ｆ
〜６ｆを介して出力端子１２に導くように構成し、該電
動バルブの開閉制御により前記電解液の循環を制御する
と共に、前記電路開閉器の開閉制御により出力端子１２
の電圧を制御する制御部１１を設けたことを特徴とす
る。In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention comprises a plurality of battery stacks 1 in which battery cells each having a positive electrode chamber and a negative electrode chamber separated by a diaphragm are stacked. ˜6, and an electrolyte flow type battery having pumps 9 and 10 for circulating the electrolyte in each electrode chamber, as shown in FIG. 1, electric power is applied to the electrolyte inlet and outlet pipes of the battery stacks 1 to 6. Valves 1a to 6a, 1b to 6b, 1c to 6
c, 1d to 6d, and each of the battery stacks 1 to 6
The output of each is connected in series, and the output of each connection part is the electric circuit switch 1f.
Through 6f, the circulation of the electrolytic solution is controlled by the opening / closing control of the electric valve, and the output terminal 12 is controlled by the opening / closing control of the electric path switch.
It is characterized in that a control unit 11 for controlling the voltage is provided.
【０００９】また、請求項２の発明は、前記制御部は充
電用電源の電気特性または、負荷特性に応じて前記電解
液流通型電池の電流効率及びシステム効率が最適になる
ように前記電路開閉器１ｆ〜６ｆ及び電動バルブ１ａ〜
６ａ，１ｂ〜６ｂ，１ｃ〜６ｃ，１ｄ〜６ｄを開閉制御
ができることを特徴とする。According to a second aspect of the present invention, the control unit opens and closes the electric circuit so that the current efficiency and system efficiency of the electrolyte flow type battery are optimized according to the electrical characteristics or the load characteristics of the charging power source. 1f-6f and electric valve 1a-
6a, 1b to 6b, 1c to 6c, 1d to 6d can be controlled to be opened and closed.
【００１０】また、請求項３の発明は、前記充電用電源
が太陽電池であり、制御部は該太陽電池の電気特性に合
わせて発電効率が最適になるように前記電路開閉器及び
電動バルブの開閉制御をすることを特徴とする。According to a third aspect of the present invention, the charging power source is a solar cell, and the controller controls the electric circuit switch and the electric valve so that the power generation efficiency is optimized in accordance with the electric characteristics of the solar cell. It is characterized by performing opening / closing control.
【００１１】[0011]
【作用】本発明は上記構成を採用することにより、レド
ックスフロ−電池は、充放電の際、上述のように電解液
が組成変化するのみで、電池内部の電極自身は全く変化
しないことを特徴とする。従って、充電中または放電中
に使用する電池スタック１〜６を任意に選択することが
出来る。例えば、電池スタック１〜６を使用して電解液
流通型電池の充電を実施し、放電に際しては、電池スタ
ック１〜４だけを使用すると云った運用パタ−ンが可能
となる。即ち、充電時は電路開閉器６ｆのみを閉状態
（接続状態）とし、放電時は４ｆのみを閉状態とすれば
よい。According to the present invention, by adopting the above-mentioned constitution, the redox flow battery is characterized in that only the composition of the electrolytic solution is changed during charging and discharging as described above, and the electrodes themselves inside the battery are not changed at all. And Therefore, the battery stacks 1 to 6 used during charging or discharging can be arbitrarily selected. For example, it is possible to perform an operation pattern in which battery stacks 1 to 6 are used to charge an electrolyte flow type battery and only battery stacks 1 to 4 are used for discharging. That is, only the electric circuit switch 6f is closed (connected state) during charging, and only 4f is closed during discharging.
【００１２】また、充電又は放電に関与しない電池スタ
ックに対して、電解液を供給し続けると余分のポンプ動
力を消費するため（図２参照）、全体のシステム効率が
低下し電池内部の電極上で、電解液の自己放電が進行し
やすく電流効率が低下するが、各電池スタック１〜６の
電解液流入口と流出口の管に電動バルブを設けることに
より、使用しない電池スタックに対しては制御部１１は
該電動バルブを閉じて電解液の供給を停止することによ
り、これらの効率の低下を防止できる。Further, if the electrolytic solution is continuously supplied to the battery stack that is not involved in charging or discharging, extra pump power is consumed (see FIG. 2), so that the overall system efficiency is lowered and the electrode inside the battery is deteriorated. Thus, the self-discharge of the electrolytic solution is likely to proceed and the current efficiency is reduced. However, by providing an electric valve in the electrolytic solution inlet and outlet pipes of each of the battery stacks 1 to 6, The control unit 11 can prevent the efficiency from being lowered by closing the electric valve to stop the supply of the electrolytic solution.
【００１３】また、各電池スタック１〜６の出力を直列
に接続し各接続部の出力を電路開閉器１ｆ〜６ｆを介し
て出力端子１２に導くように構成することにより、全体
の電池電圧を該電路開閉器１ｆ〜６ｆの開閉で調整可能
としたことで、例えば後述するように、太陽電池等の電
気特性に合わせることにより発電効率を高めることがで
きる。また、負荷需要に応じた出力電圧を設定すること
ができる。Further, by connecting the outputs of the respective battery stacks 1 to 6 in series and guiding the outputs of the respective connecting portions to the output terminal 12 via the electric path switches 1f to 6f, the total battery voltage is reduced. By adjusting the opening / closing of the electric circuit switches 1f to 6f, the power generation efficiency can be increased by adjusting the electric characteristics of the solar cell or the like, for example, as described later. Also, the output voltage can be set according to the load demand.
【００１４】[0014]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。図１は本発明の電解液流通型電池の構成
を示す図である。図示するように本発明の電解液流通型
電池は複数の電池スタック（本図では６個）１〜６を有
し、各電池スタック１〜６の負極室に供給される電解液
は負極液タンク７に貯えられ、ポンプ９により循環する
ように配管され、更に各電池スタック１〜６の入口と出
口には電解液の流れを制御するための電動バルブ１ｃ〜
６ｃ、１ｄ〜６ｄが設けられている。各電池スタック１
〜６の正極室に供給される電解液は正極液タンク８に貯
えられ、ポンプ１０により循環するように配管され、更
に各電池スタック１〜６の入口と出口には電解液の流れ
を制御するための電動バルブ１ａ〜６ａ、１ｂ〜６ｂが
設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a diagram showing the configuration of an electrolyte flow type battery of the present invention. As shown in the figure, the electrolytic solution flow type battery of the present invention has a plurality of battery stacks (six in this figure) 1 to 6, and the electrolytic solution supplied to the negative electrode chambers of the battery stacks 1 to 6 is a negative electrode liquid tank. 7 and is circulated by a pump 9 so as to circulate. Further, at the inlet and the outlet of each of the battery stacks 1 to 6, an electric valve 1c for controlling the flow of the electrolytic solution is provided.
6c, 1d to 6d are provided. Each battery stack 1
Electrolyte solutions to be supplied to the positive electrode chambers 6 to 6 are stored in the positive electrode solution tank 8 and are circulated by a pump 10 to further control the flow of the electrolytic solution at the inlets and outlets of the battery stacks 1 to 6. The electric valves 1a to 6a and 1b to 6b are provided.
【００１５】各電池スタック１〜６の出力は直列に接続
され、更に各電池スタック１〜６の接続部は電路開閉器
１ｆ〜６ｆを介して出力端子１２へ接続されている。制
御部１１は出力電圧或いは充電電圧に応じて電路開閉器
１ｆ〜６ｆの内、指定された一つだけを閉じ、更に制御
部１１は閉じられた電路開閉器に対応する電池スタック
より正側、例えば電路開閉器４ｆが閉じられた場合に電
池スタック５，６の電動バルブ５ａ，６ａ，５ｂ，６
ｂ，５ｃ，６ｃ，５ｄ，６ｄを閉じるように制御する。The outputs of the battery stacks 1 to 6 are connected in series, and the connecting portions of the battery stacks 1 to 6 are connected to the output terminal 12 via the electric circuit switches 1f to 6f. The control unit 11 closes only the designated one of the electric circuit switches 1f to 6f according to the output voltage or the charging voltage, and the control unit 11 further controls the positive side of the battery stack corresponding to the closed electric circuit switch, For example, the electric valves 5a, 6a, 5b, 6 of the battery stacks 5, 6 when the electric circuit switch 4f is closed.
b, 5c, 6c, 5d and 6d are controlled to be closed.
【００１６】図３に電解液流通型電池の応用例を示す。
ここでは、太陽電池３０で発電された電力を負荷３２に
供給すると共に、電解液流通型電池３１に蓄電する場合
を示す。一般に、太陽電池は図４に示すＩ−Ｖ特性（電
流−電圧特性）及び電力特性（電力−電圧特性）を有す
る。従って、この特性から太陽電池の発電電力特性が決
まる。即ち図４の電圧ＶＳｍのポイントで最大の発電電
力が得られることになる。従って、電解液流通型電池３
１の電池電圧を、このＶＳｍとなるように設定できれ
ば、効率的に太陽電池３０の発電電力を電解液流通型電
池に蓄電（充電）できることになる。即ち、図１におい
て、制御部１１は出力端子１２の電圧がこのＶＳｍに一
致するように電路開閉器１ｆ〜６ｆの内の一つを選択し
て閉じると共に、充電に使用されない電池スタックの電
動バルブを閉じる。FIG. 3 shows an application example of the electrolyte flow type battery.
Here, the case where the electric power generated by the solar cell 30 is supplied to the load 32 and stored in the electrolyte flow type battery 31 is shown. Generally, a solar cell has IV characteristics (current-voltage characteristics) and power characteristics (power-voltage characteristics) shown in FIG. Therefore, the power generation power characteristic of the solar cell is determined from this characteristic. That is, the maximum generated power can be obtained at the point of the voltage VSm in FIG. Therefore, the electrolyte flow type battery 3
If the battery voltage of No. 1 can be set to this VSm, the power generated by the solar cell 30 can be efficiently stored (charged) in the electrolyte flow type battery. That is, in FIG. 1, the control unit 11 selects and closes one of the electric circuit switches 1f to 6f so that the voltage of the output terminal 12 coincides with VSm and closes the electric valve of the battery stack that is not used for charging. Close.
【００１７】一方、電解液流通型電池では電解液の充電
深度の状態に応じて、電池電圧は変化する。図５に１ス
タック当りの電池電圧と充電深度の関係を示す電圧−充
電深度特性を示す。図示するように、１スタック当りの
電池電圧は充電深度Ｔａ，Ｔｂ，Ｔｃに応じてＶＲａ，
ＶＲｂ，ＶＲｃと変化する。電解液流通型電池全体の電
池電圧は、充電深度Ｔに応じて直列接続した電池スタッ
ク数によって決まるため、この電圧ＶＲａ〜ＶＲｃの各
電圧値に電池スタック数を掛けることで、全体の電池電
圧が求まる。On the other hand, in the electrolytic solution flow type battery, the battery voltage changes according to the state of the depth of charge of the electrolytic solution. FIG. 5 shows a voltage-charge depth characteristic showing the relationship between the battery voltage per stack and the charge depth. As shown in the figure, the battery voltage per stack is VRa depending on the charging depths Ta, Tb, and Tc.
It changes to VRb and VRc. Since the battery voltage of the entire electrolyte flow type battery is determined by the number of battery stacks connected in series according to the charging depth T, by multiplying each voltage value of the voltages VRa to VRc by the number of battery stacks, the total battery voltage becomes I want it.
【００１８】従って、電解液流通型電池電圧を、図４で
示すＶＳｍとなるように設定するには、ＶＳｍ＝ＶＲａ
×Ｎａ〜ＶＳｍ＝ＶＲｃ×Ｎｃになるように１スタック
電圧の変化に応じてスタック数Ｎａ〜Ｎｃを決めればよ
いことになる。制御部１１では現在の充電深度に応じて
全体の電池電圧がＶＳｍに等しくなるようなスタック数
Ｎを求め、それに対応する電路開閉器を閉じ、使用しな
い電池スタックの電動バルブを閉める。こうすることに
より太陽電池の発電を効率的に蓄電することが出来る。Therefore, in order to set the electrolytic solution flow type battery voltage to VSm shown in FIG. 4, VSm = VRa
The number of stacks Na to Nc may be determined according to the change of one stack voltage so that × Na to VSm = VRc × Nc. The control unit 11 obtains the number of stacks N such that the entire battery voltage becomes equal to VSm according to the current charging depth, closes the corresponding electric circuit switch, and closes the electric valve of the unused battery stack. By doing so, the power generated by the solar cell can be efficiently stored.
【００１９】図６に負荷需要パタ−ンの例を示す。負荷
需要に関しては様々なパタ−ンが考えられるが、例えば
負荷需要パタ−ンの一例として、図６のようなケ−スを
想定できる。必要とされる電力需要は５段階（Ｌ１〜Ｌ
５）程度に大別できる。従って、制御部１１でこの需要
レベルに合わせて、電解液流通型電池の使用電池スタッ
ク数を前記のように調整すれば、電解液流通型電池のシ
ステム効率を維持しながら安定した電力を供給できる。FIG. 6 shows an example of the load demand pattern. Various patterns are conceivable for the load demand. For example, as an example of the load demand pattern, the case shown in FIG. 6 can be assumed. The required power demand is 5 levels (L1 to L
It can be roughly divided into 5). Therefore, if the control unit 11 adjusts the number of used battery stacks of the electrolyte flow type battery according to the demand level as described above, stable power can be supplied while maintaining the system efficiency of the electrolyte flow type battery. .
【００２０】[0020]
【発明の効果】以上、詳細に説明したように本発明によ
れば、下記のような優れた効果が期待される。 （１）電動バルブを設け不使用電池スタックへの電解液
供給を停止するため、高水準の電流効率が維持されると
共に、ポンプ動力の消費電力が低減されシステム効率が
向上する。As described in detail above, according to the present invention, the following excellent effects are expected. (1) Since the electric valve is provided and the supply of the electrolytic solution to the unused battery stack is stopped, a high level of current efficiency is maintained and the power consumption of the pump power is reduced to improve the system efficiency.
【００２１】（２）電解液流通型電池の電池電圧調整が
可能なため、太陽電池等の発電電力を常に最大に利用で
きる。(2) Since the battery voltage of the electrolyte flow type battery can be adjusted, the generated electric power of the solar cell or the like can always be maximized.
【図１】本発明の電解液流通型電池の構成を示す図であ
る。FIG. 1 is a diagram showing the configuration of an electrolyte flow type battery of the present invention.
【図２】充電時と放電時の使用スタック数が異なる時の
ポンプ動力を示す図である。FIG. 2 is a diagram showing pump power when the number of stacks used is different between charging and discharging.
【図３】電解液流通型電池の応用例を示す図である。FIG. 3 is a diagram showing an application example of an electrolyte flow type battery.
【図４】太陽電池の特性を示す図である。FIG. 4 is a diagram showing characteristics of a solar cell.
【図５】１スタック当りの充電深度と電圧特性を示す図
である。FIG. 5 is a diagram showing a charge depth and a voltage characteristic per stack.
【図６】負荷需要パタ−ンの例を示す図である。FIG. 6 is a diagram showing an example of a load demand pattern.
【図７】レドックスフロ−電池のセルの構造を示す図で
ある。FIG. 7 is a diagram showing a structure of a cell of a redox flow battery.
１〜６ 電池スタック １ａ〜６ａ 電動バルブ １ｂ〜６ｂ 電動バルブ １ｃ〜６ｃ 電動バルブ １ｄ〜６ｄ 電動バルブ １ｆ〜６ｆ 電路開閉器 ７ 負極液タンク ８ 正極液タンク ９ ポンプ １０ ポンプ １１ 制御部 １２ 出力端子 1-6 Battery stack 1a-6a Electric valve 1b-6b Electric valve 1c-6c Electric valve 1d-6d Electric valve 1f-6f Electric path switch 7 Anode liquid tank 8 Cathode liquid tank 9 Pump 10 Pump 11 Control part 12 Output terminal
フロントページの続き (72)発明者 野崎 健 茨城県つくば市梅園１丁目１番４ 工業技 術院電子技術総合研究所内 (72)発明者 津田 泉 茨城県つくば市梅園１丁目１番４ 工業技 術院電子技術総合研究所内 (72)発明者 和田 雄高 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 赤井 勇一 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内Front page continued (72) Inventor Ken Nozaki Ken 1-4 Umezono, Tsukuba-shi, Ibaraki Electronic Technology Research Institute, Industrial Technology Institute (72) Izumi Tsuda 1-4 1-4 Umezono, Tsukuba-shi, Ibaraki Industrial Technology (72) Inventor Yutaka Wada 11-1 Haneda Asahi-cho, Ota-ku, Tokyo Inside EBARA CORPORATION (72) Inventor Yuichi Akai 11-1 Haneda-Asahi-cho, Ota-ku, Tokyo Inside the EBARA CORPORATION
Claims (3)
なる電池セルを積層してなる電池スタックを複数個具備
し、前記正極室及び負極室に電解液を循環させるポンプ
を有する電解液流通型電池において、 前記各電池スタックの電解液流入口と流出口の管に自動
バルブを設けると共に、前記各電池スタックの出力を直
列に接続し各接続部の出力を電路開閉器を介して出力端
子に導くように構成し、 該自動バルブの開閉制御により前記電解液の循環を制御
すると共に、前記電路開閉器の開閉制御により前記出力
端子の電圧を制御する制御部を設けたことを特徴とする
電解液流通型電池。1. An electrolytic solution flower comprising a plurality of battery stacks, each of which is formed by stacking battery cells including a positive electrode chamber and a negative electrode chamber separated by a diaphragm, and a pump for circulating an electrolytic solution in the positive electrode chamber and the negative electrode chamber. Type batteries, an automatic valve is provided in the electrolyte inlet and outlet pipes of each battery stack, the outputs of the battery stacks are connected in series, and the output of each connection part is output through an electric circuit switch. And a control unit for controlling the circulation of the electrolytic solution by controlling the opening / closing of the automatic valve and controlling the voltage of the output terminal by controlling the opening / closing of the electric circuit switch. Electrolyte flow type battery.
は、負荷特性に応じて前記電解液流通型電池の電池効率
及びシステム効率が最適になるように前記電路開閉器及
び自動バルブを開閉制御ができることを特徴とする請求
項１に記載の電解液流通型電池。2. The control unit controls the opening and closing of the electric circuit switch and the automatic valve so that the battery efficiency and system efficiency of the electrolyte flow type battery are optimized in accordance with the electrical characteristics or load characteristics of the charging power source. The electrolytic solution flow type battery according to claim 1, wherein
制御部は該太陽電池の電気特性に合わせて発電効率が最
大になるように前記電路開閉器による電圧制御及び自動
バルブの開閉制御をすることを特徴とする請求項２に記
載の電解液流通型電池。3. The charging power source is a solar cell, and the control unit controls the voltage by the electric circuit switch and the opening / closing control of an automatic valve so that the power generation efficiency is maximized in accordance with the electrical characteristics of the solar cell. The electrolytic solution flow type battery according to claim 2, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34757493A JP3193992B2 (en) | 1993-12-24 | 1993-12-24 | Electrolyte flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34757493A JP3193992B2 (en) | 1993-12-24 | 1993-12-24 | Electrolyte flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07192749A true JPH07192749A (en) | 1995-07-28 |
| JP3193992B2 JP3193992B2 (en) | 2001-07-30 |
Family
ID=18391143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34757493A Expired - Lifetime JP3193992B2 (en) | 1993-12-24 | 1993-12-24 | Electrolyte flow battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3193992B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101433048B1 (en) * | 2011-11-18 | 2014-08-25 | 세하특허 주식회사 | Redox flow battery system for multiple storage of renewable energy |
| KR101655292B1 (en) * | 2016-04-15 | 2016-09-07 | 스탠다드에너지(주) | Redox flow battery |
| JP2017134938A (en) * | 2016-01-26 | 2017-08-03 | 学校法人智香寺学園埼玉工業大学 | Redox secondary battery system |
| KR20180131050A (en) * | 2017-05-31 | 2018-12-10 | (주)에너지와공조 | Redox flow battery system capable of concurrently performing charge and discharge of redox flow battery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102161420B1 (en) * | 2020-01-08 | 2020-10-05 | 주식회사 에이치투 | Redox flow battery having a function of preventing shunt curent and leakage |
-
1993
- 1993-12-24 JP JP34757493A patent/JP3193992B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101433048B1 (en) * | 2011-11-18 | 2014-08-25 | 세하특허 주식회사 | Redox flow battery system for multiple storage of renewable energy |
| JP2017134938A (en) * | 2016-01-26 | 2017-08-03 | 学校法人智香寺学園埼玉工業大学 | Redox secondary battery system |
| KR101655292B1 (en) * | 2016-04-15 | 2016-09-07 | 스탠다드에너지(주) | Redox flow battery |
| US10090550B2 (en) | 2016-04-15 | 2018-10-02 | Standard Energy Co., Ltd. | Redox flow battery |
| KR20180131050A (en) * | 2017-05-31 | 2018-12-10 | (주)에너지와공조 | Redox flow battery system capable of concurrently performing charge and discharge of redox flow battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3193992B2 (en) | 2001-07-30 |
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