JPH0992320A - Redox flow type secondary cell system - Google Patents
Redox flow type secondary cell systemInfo
- Publication number
- JPH0992320A JPH0992320A JP7239656A JP23965695A JPH0992320A JP H0992320 A JPH0992320 A JP H0992320A JP 7239656 A JP7239656 A JP 7239656A JP 23965695 A JP23965695 A JP 23965695A JP H0992320 A JPH0992320 A JP H0992320A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic solution
- electrolyte
- battery
- cell stacks
- cell
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電力負荷平準化など
を目的として開発されているレドックスフロー型二次電
池システムに関し、特に、高電圧で大容量のレドックス
フロー型二次電池の電流効率の改善に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a redox flow type secondary battery system developed for the purpose of power load leveling and the like, and more particularly to improvement of current efficiency of a high voltage and large capacity redox flow type secondary battery. It is about.
【０００２】[0002]
【従来の技術】図４は、従来のレドックスフロー型二次
電池システムを概略的に図解するブロック図である。こ
の電池システムは、６つの電池セルスタック１を含んで
いる。それらの電池セルスタック１の各々は１対の入出
力端子を含んでおり、電気的には導線８によって互いに
直列に接続されている。電池セルスタック１の各々はま
た、１対の入出力端子間において直接直列接続された複
数の電池セルを含んでいる。それらの電池セルの各々
は、正極と負極およびそれらの間に設けられたイオン交
換膜を含んでいる。2. Description of the Related Art FIG. 4 is a block diagram schematically illustrating a conventional redox flow type secondary battery system. This battery system includes six battery cell stacks 1. Each of the battery cell stacks 1 includes a pair of input / output terminals and is electrically connected to each other in series by a conductive wire 8. Each of the battery cell stacks 1 also includes a plurality of battery cells directly connected in series between a pair of input / output terminals. Each of those battery cells includes a positive electrode, a negative electrode, and an ion exchange membrane provided therebetween.
【０００３】６つの電池セルスタック１のそれぞれには
１つの正極電解液タンク２から正極電解液用ポンプ４と
正極電解液用配管６を介して正極電解液が並列に送り込
まれ、各セルスタック１から排出された正極電解液は正
極電解液タンク２に戻される。同様に、６つのセルスタ
ック１のそれぞれにはまた、１つの負極電解液タンク３
から負極電解液用ポンプ５と負極電解液用配管７を介し
て負極電解液が並列に送り込まれ、各セルスタック１か
ら排出された負極電解液は負極電解液タンク３に戻され
る。The positive electrode electrolytic solution is sent in parallel from each positive electrode electrolytic solution tank 2 to each of the six battery cell stacks 1 via the positive electrode electrolytic solution pump 4 and the positive electrode electrolytic solution pipe 6, and each cell stack 1 The positive electrode electrolytic solution discharged from is returned to the positive electrode electrolytic solution tank 2. Similarly, each of the six cell stacks 1 also has one negative electrolyte tank 3
The negative electrode electrolytic solution is fed in parallel from the negative electrode electrolytic solution pump 5 through the negative electrode electrolytic solution pipe 7 and the negative electrode electrolytic solution discharged from each cell stack 1 is returned to the negative electrode electrolytic solution tank 3.
【０００４】各電池セルスタック１内の複数のセルにお
いて、それぞれのイオン交換膜の正極側には正極電解液
が並列に供給され、同様にそれぞれのイオン交換膜の負
極側には負極電解液が並列に供給される。そして、イオ
ン交換膜を介した正極電解液と負極電解液との化学反応
によって、二次電池の充放電が生じる。In a plurality of cells in each battery cell stack 1, the positive electrode electrolyte solution is supplied in parallel to the positive electrode side of each ion exchange membrane, and the negative electrode electrolyte solution is similarly supplied to the negative electrode side of each ion exchange membrane. Supplied in parallel. Then, the secondary battery is charged and discharged due to a chemical reaction between the positive electrode electrolytic solution and the negative electrode electrolytic solution via the ion exchange membrane.
【０００５】[0005]
【発明が解決しようとする課題】図４に示されているよ
うな従来のレドックスフロー型二次電池システムにおい
ては、すべての複数の電池セルスタックを流れる電解液
が共通しているので、それらの直列接続されたすべての
複数のセルスタックの電圧がその電解液中に印加され、
電池システムの充放電に寄与しない漏れ電流が配管内の
電解液中を流れる。したがって、高い入出力電圧を得る
ために直列接続する電池セルスタックの数を増大すれ
ば、共通な電解液中を流れる漏れ電流が増大し、電池シ
ステムの電流効率の低下を生じるという問題がある。In the conventional redox flow type secondary battery system as shown in FIG. 4, since the electrolytes flowing through all the plurality of battery cell stacks are common, those The voltage of all cell stacks connected in series is applied in its electrolyte,
Leakage current that does not contribute to charging / discharging of the battery system flows in the electrolytic solution in the pipe. Therefore, if the number of battery cell stacks connected in series in order to obtain a high input / output voltage is increased, there is a problem that the leakage current flowing through the common electrolytic solution is increased and the current efficiency of the battery system is reduced.
【０００６】従来、このような問題を低減するために、
電解液の配管を細くかつ長くすることによって漏れ電流
に対する電解液の電気抵抗を増大させ、これによって電
解液中の漏れ電流を減らすことが試みられている。しか
し、このような従来の試みでは、配管径の減少と配管長
さの増大のために、電解液を送出するポンプ動力の負担
の増大を招き、電池システムの大容量化においてトータ
ルのエネルギ効率が低下するという課題がある。Conventionally, in order to reduce such a problem,
Attempts have been made to increase the electrical resistance of the electrolyte solution against leakage current by thinning and lengthening the electrolyte piping, thereby reducing the leakage current in the electrolyte solution. However, in such a conventional attempt, the decrease in the pipe diameter and the increase in the pipe length cause an increase in the load of the pump power for delivering the electrolytic solution, and the total energy efficiency in increasing the capacity of the battery system. There is a problem of decrease.
【０００７】以上のような先行技術における課題に鑑
み、本発明は、電流効率やエネルギ効率を低下させるこ
となく、高い入出力電圧を有し得る大容量のレドックス
フロー型二次電池システムを提供することを目的として
いる。In view of the above problems in the prior art, the present invention provides a large-capacity redox flow secondary battery system which can have a high input / output voltage without lowering current efficiency and energy efficiency. Is intended.
【０００８】[0008]
【課題を解決するための手段】本発明によるレドックス
フロー型二次電池システムは、電気的に直列に接続され
た複数の電池セルスタックを含み、それらの複数の電池
セルスタックは複数のグループに分けられており、電池
システムは複数の電池セルスタックを通して電解液を循
環させる複数の電解液循環系統をさらに含み、複数の電
解液循環系統は電気的に互いに分離されており、１つの
電解液循環系統は１つのグループ内の複数の電池セルス
タックのみを通して電解液を循環させることを特徴とし
ている。A redox flow type secondary battery system according to the present invention includes a plurality of battery cell stacks electrically connected in series, and the plurality of battery cell stacks are divided into a plurality of groups. The battery system further includes a plurality of electrolytic solution circulation systems that circulate an electrolytic solution through a plurality of battery cell stacks, and the plurality of electrolytic solution circulation systems are electrically separated from each other. Is characterized in that the electrolytic solution is circulated through only a plurality of battery cell stacks in one group.
【０００９】本発明によるレドックスフロー型二次電池
システムにおいては、複数の電解液循環系統が設けられ
ており、それらの複数の電解液循環系統は電気的に互い
に分離されていて、１つの電解液循環系統が１つのグル
ープ内の電池セルスタックのみを通して電解液を循環さ
せるので、電池システム全体にかかる高い入出力電圧が
１つの電解液循環系統内の電解液に印加されることがな
く、電解液中を流れる漏れ電流が減少され得る。したが
って、電池の電流効率を低下させることなく、高い入出
力電圧を有しかつ大容量のレドックスフロー型二次電池
システムを提供することが可能となる。In the redox flow type secondary battery system according to the present invention, a plurality of electrolyte solution circulation systems are provided, and the plurality of electrolyte solution circulation systems are electrically separated from each other to form one electrolyte solution. Since the circulation system circulates the electrolytic solution only through the battery cell stack in one group, the high input / output voltage applied to the entire battery system is not applied to the electrolytic solution in one electrolytic circulation system, Leakage current flowing therethrough can be reduced. Therefore, it is possible to provide a redox flow type secondary battery system having a high input / output voltage and a large capacity without lowering the current efficiency of the battery.
【００１０】[0010]
【発明の実施の形態】図１は、本発明の１つの実施の形
態によるレドックスフロー型二次電池システムを概略的
に図解するブロック図である。図１の電池システムは、
電気的に直列接続された６個の電池セルスタックを含ん
でいる。２個のセルスタック１ａを含む第１のセルスタ
ックグループには、第１の正極側電解液タンク２ａから
第１の正極側電解液用ポンプ４ａによって第１の正極側
電解液用配管６ａを介して第１の正極側電解液が循環さ
せられると同時に、第１の負極側電解液タンク３ａから
第１の負極側電解液用ポンプ５ａによって第１の負極側
電解液用配管７ａを介して第１の負極側電解液が循環さ
せられる。FIG. 1 is a block diagram schematically illustrating a redox flow type secondary battery system according to one embodiment of the present invention. The battery system of FIG. 1 is
It includes six battery cell stacks that are electrically connected in series. The first cell stack group including the two cell stacks 1a is connected to the first positive electrode side electrolytic solution tank 2a from the first positive electrode side electrolytic solution pump 4a through the first positive electrode side electrolytic solution pipe 6a. At the same time that the first positive electrode side electrolytic solution is circulated, the first negative electrode side electrolytic solution tank 3a is operated by the first negative electrode side electrolytic solution pump 5a via the first negative electrode side electrolytic solution pipe 7a. The negative electrode side electrolytic solution of No. 1 is circulated.
【００１１】同様に、２個のセルスタック１ｂを含む第
２のセルスタックグループのために、第２の正極側電解
液タンク２ｂ，第２の正極側電解液用ポンプ４ｂ，およ
び第２の正極側電解液用配管６ｂが設けられているとと
もに、第２の負極側電解液タンク３ｂ，第２の負極側電
解液用ポンプ５ｂ，および第２の負極側電解液用配管７
ｂが設けられている。Similarly, for the second cell stack group including the two cell stacks 1b, the second positive electrode side electrolyte solution tank 2b, the second positive electrode side electrolyte solution pump 4b, and the second positive electrode side. The side electrolytic solution pipe 6b is provided, and the second negative electrode side electrolytic solution tank 3b, the second negative electrode side electrolytic solution pump 5b, and the second negative electrode side electrolytic solution pipe 7 are provided.
b is provided.
【００１２】さらに、２個のセルスタック１ｃを含む第
３のセルスタックグループのためには、第３の正極側電
解液タンク２ｃ，第３の正極側電解液用ポンプ４ｃ，お
よび第３の正極側電解液用配管６ｃが設けられていると
ともに、第３の負極側電解液タンク３ｃ，第３の負極側
電解液用ポンプ５ｃ，および第３の負極側電解液用配管
７ｃが設けられている。Further, for the third cell stack group including the two cell stacks 1c, the third positive electrode side electrolyte solution tank 2c, the third positive electrode side electrolyte solution pump 4c, and the third positive electrode side. The side electrolytic solution pipe 6c is provided, and the third negative electrode side electrolytic solution tank 3c, the third negative electrode side electrolytic solution pump 5c, and the third negative electrode side electrolytic solution pipe 7c are provided. .
【００１３】すなわち、図１の電池システムは６つのセ
ルスタックに対して３つの電解液循環系統を備え、個々
の循環系統内の電解液に印加される電圧がセルスタック
の２つ分の電圧に限られるので、電解液中を流れる漏れ
電流が低減されて、電池システムのエネルギ損失が低減
され得る。That is, the battery system of FIG. 1 is provided with three electrolytic solution circulation systems for six cell stacks, and the voltage applied to the electrolytic solution in each circulation system is equal to the voltage for two cell stacks. Being limited, the leakage current flowing through the electrolyte can be reduced and the energy loss of the battery system can be reduced.
【００１４】図２においては、電気的に直列に接続され
た６つのセルスタックに対してｎ個の電解液循環系統を
含む電池システムの等価回路図が示されている。すなわ
ち、図２（Ａ），（Ｂ），（Ｃ）および（Ｄ）に示され
た電池システムは、６個のセルスタックに対してそれぞ
れ１つ，２つ，３つおよび６つの電解液循環系統を含ん
でいる。電解液循環系統の各々は互いにに等しい数のセ
ルスタックに接続されており、１つの循環系統は正極側
電解液と負極側電解液との両方の循環系を含んでいる。FIG. 2 shows an equivalent circuit diagram of a battery system including n electrolyte circulation systems for six cell stacks electrically connected in series. That is, the battery system shown in FIGS. 2 (A), (B), (C) and (D) has one, two, three and six electrolyte solution circulations for six cell stacks, respectively. Includes lineage. Each of the electrolytic solution circulation systems is connected to the same number of cell stacks as one another, and one circulation system includes both the positive electrode side electrolytic solution and the negative electrode side electrolytic solution.
【００１５】すなわち、６個のセルスタックに対してた
だ１つの電解液循環系統を含む図２（Ａ）の電池システ
ムは図４に示された従来の電池システムに対応してい
る。他方、６個のセルスタックに対して３つの電解液循
環系統を含む図２（Ｃ）の電池システムは、図１の実施
例の電池システムに対応している。That is, the battery system of FIG. 2 (A) including only one electrolyte circulation system for the six cell stacks corresponds to the conventional battery system shown in FIG. On the other hand, the battery system of FIG. 2C including three electrolyte solution circulation systems for six cell stacks corresponds to the battery system of the embodiment of FIG.
【００１６】図３は図２に示された種々の電池システム
を定電流制御で運転した場合の電流効率を示している。
図３のグラフにおいて、横軸は電解液循環系統の数ｎを
表わし、縦軸は電池システムの電流効率を表わしてい
る。また、図２の電池システムにおけるパラメータとし
ては、充電電流ＩC ＝２５０Ａ，放電電流ＩD ＝２５０
Ａ，セルの内部抵抗ＲC ＝０．０４９５Ω，電解液の入
出力ポート抵抗ＲS ＝３８．５４Ω，配管のマニホール
ド内抵抗ＲM ＝１．７Ω，そして電圧Ｅ0 ＝８２．９８
Ｖが用いられた。ここで、電流効率＝（充電時の反応電
流−充電時の漏れ電流）／（放電時の反応電流＋放電時
の漏れ電流）と定義されている。FIG. 3 shows the current efficiency when the various battery systems shown in FIG. 2 are operated under constant current control.
In the graph of FIG. 3, the horizontal axis represents the number n of electrolytic solution circulation systems, and the vertical axis represents the current efficiency of the battery system. Further, as parameters in the battery system of FIG. 2, the charging current I C = 250 A and the discharging current I D = 250.
A, cell internal resistance R C = 0.0495 Ω, electrolyte input / output port resistance R S = 38.54 Ω, piping manifold resistance R M = 1.7 Ω, and voltage E 0 = 82.98.
V was used. Here, current efficiency = (reaction current during charging−leakage current during charging) / (reaction current during discharging + leakage current during discharging) is defined.
【００１７】図３から明らかなように、ただ１つの電解
液循環系統を有する従来の電池システムにおいては、
０．９４未満の電流効率を有するにすぎないのに対し
て、２つの電解液循環系統を有する本発明による電池シ
ステムにおいては、０．９７を超える電流効率を示して
おり、電解液循環系統数ｎが増大するに従って電池シス
テムの電流効率が向上することがわかる。As is apparent from FIG. 3, in the conventional battery system having only one electrolyte circulation system,
The battery system according to the present invention having two electrolytic solution circulation systems has a current efficiency of more than 0.97, while the current efficiency of 0.94 is less than 0.94. It can be seen that the current efficiency of the battery system improves as n increases.
【００１８】[0018]
【発明の効果】以上のように、本発明によれば、レドッ
クスフロー型二次電池システムにおいて高電圧を得るた
めに多数の電池セルスタックを電気的に直列接続する場
合に、複数の電解液循環系統を設けて１循環系統中の電
解液が小数のセルスタックにのみ共通に供給されるよう
にすることによって電解液中を流れる漏れ電流を低減す
ることができ、その結果として電流効率を低下させるこ
となく電池の高電圧化または大容量化が可能となる。ま
た、漏れ電流によって生じる副反応熱が低減されるの
で、電解液やセル部材などの電池材料の劣化が低減さ
れ、電池の寿命が伸びることも期待され、電池の信頼性
も向上する。As described above, according to the present invention, when a plurality of battery cell stacks are electrically connected in series in order to obtain a high voltage in a redox flow type secondary battery system, a plurality of electrolytic solution circulations are performed. By providing a system so that the electrolytic solution in one circulation system is commonly supplied to only a small number of cell stacks, the leakage current flowing in the electrolytic solution can be reduced, and as a result, the current efficiency is reduced. It is possible to increase the voltage or the capacity of the battery without using it. Further, since the side reaction heat generated by the leakage current is reduced, it is expected that the deterioration of the battery material such as the electrolytic solution and the cell member is reduced, the life of the battery is extended, and the reliability of the battery is improved.
【図１】本発明の１つの実施の形態によるレドックスフ
ロー型電池システムを概略的に示すブロック図である。FIG. 1 is a block diagram schematically showing a redox flow battery system according to an embodiment of the present invention.
【図２】異なる数の電解液循環系統を有する種々のレド
ックスフロー型電池システムを示す等価回路図である。FIG. 2 is an equivalent circuit diagram showing various redox flow battery systems having different numbers of electrolyte circulation systems.
【図３】レドックスフロー型電池システムにおける電解
液循環系統の数と電流効率との関係を示すグラフであ
る。FIG. 3 is a graph showing the relationship between the number of electrolyte circulation systems and current efficiency in a redox flow battery system.
【図４】先行技術によるレドックスフロー型電池システ
ムの一例を概略的に示すブロック図である。FIG. 4 is a block diagram schematically showing an example of a redox flow battery system according to the prior art.
１，１ａ，１ｂ，１ｃ 電池セルスタック ２，２ａ，２ｂ，２ｃ 正極側電解液タンク ３，３ａ，３ｂ，３ｃ 負極側電解液タンク ４，４ａ，４ｂ，４ｃ 正極側電解液用ポンプ ５，５ａ，５ｂ，５ｃ 負極側電解液用ポンプ ６，６ａ，６ｂ，６ｃ 正極側電解液用配管 ７，７ａ，７ｂ，７ｃ 負極側電解液用配管 ８ 電気配線 1, 1a, 1b, 1c Battery cell stack 2, 2a, 2b, 2c Positive electrode side electrolytic solution tank 3, 3a, 3b, 3c Negative electrode side electrolytic solution tank 4, 4a, 4b, 4c Positive electrode side electrolytic solution pump 5, 5a , 5b, 5c Negative Electrolyte Pump 6,6a, 6b, 6c Positive Electrolyte Piping 7, 7a, 7b, 7c Negative Electrolyte Piping 8 Electrical Wiring
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 哲二 大阪市此花区島屋一丁目１番３号 住友電 気工業株式会社大阪製作所内 (72)発明者 徳田 信幸 大阪府大阪市北区中之島３丁目３番22号 関西電力株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuji Ito 1-3-3 Shimaya, Konohana-ku, Osaka City Sumitomo Electric Industries, Ltd. Osaka Works (72) Inventor Nobuyuki Tokuda 3-chome Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture No. 3-22 Kansai Electric Power Co., Inc.
Claims (2)
ルスタックを含み、前記複数の電池セルスタックは複数
のグループに分けられており、 前記複数の電池セルスタックを通して電解液を循環させ
る複数の電解液循環系統をさらに含み、前記複数の電解
液循環系統は電気的に互いに分離されており、１つの前
記電解液循環系統は前記グループの１つ内の複数の前記
電池セルスタックのみを通して前記電解液を循環させる
ことを特徴とするレドックスフロー型二次電池システ
ム。1. A plurality of battery cell stacks electrically connected in series, wherein the plurality of battery cell stacks are divided into a plurality of groups, and a plurality of electrolyte solutions are circulated through the plurality of battery cell stacks. Further electrolyte circulation system, the plurality of electrolyte circulation system is electrically separated from each other, one electrolyte circulation system through only a plurality of the battery cell stack in one of the group A redox flow type secondary battery system characterized by circulating an electrolytic solution.
直列に接続された複数のセルを含み、前記電解液循環系
統の１つは前記グループの電流効率が０．９５以上にな
るような電池セルの数にのみ前記電解液を循環させるこ
とを特徴とする請求項１に記載のレドックスフロー型二
次電池システム。2. Each of the battery cell stacks includes a plurality of cells electrically connected in series, and one of the electrolytic solution circulation systems is a battery such that the current efficiency of the group is 0.95 or more. The redox flow secondary battery system according to claim 1, wherein the electrolytic solution is circulated only for the number of cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23965695A JP3574514B2 (en) | 1995-09-19 | 1995-09-19 | Redox flow type secondary battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23965695A JP3574514B2 (en) | 1995-09-19 | 1995-09-19 | Redox flow type secondary battery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0992320A true JPH0992320A (en) | 1997-04-04 |
| JP3574514B2 JP3574514B2 (en) | 2004-10-06 |
Family
ID=17047955
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23965695A Expired - Lifetime JP3574514B2 (en) | 1995-09-19 | 1995-09-19 | Redox flow type secondary battery system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3574514B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403519A (en) * | 2011-08-19 | 2012-04-04 | 中国电力科学研究院 | Redox flow cell integrated system |
| KR20170064048A (en) * | 2015-11-30 | 2017-06-09 | 현대일렉트릭앤에너지시스템(주) | Apparatus for minimizing Leakage Current of Secondary Battery Energy Storage System |
| EP3522280A4 (en) * | 2016-09-30 | 2020-07-01 | Lotte Chemical Corporation | Redox flow cell |
| WO2022259616A1 (en) * | 2021-06-07 | 2022-12-15 | 三菱重工業株式会社 | Redox flow battery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487148B (en) * | 2010-12-01 | 2014-03-05 | 大连融科储能技术发展有限公司 | Large-scale all vanadium flow energy-storage battery system and its control method and use |
-
1995
- 1995-09-19 JP JP23965695A patent/JP3574514B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403519A (en) * | 2011-08-19 | 2012-04-04 | 中国电力科学研究院 | Redox flow cell integrated system |
| KR20170064048A (en) * | 2015-11-30 | 2017-06-09 | 현대일렉트릭앤에너지시스템(주) | Apparatus for minimizing Leakage Current of Secondary Battery Energy Storage System |
| EP3522280A4 (en) * | 2016-09-30 | 2020-07-01 | Lotte Chemical Corporation | Redox flow cell |
| WO2022259616A1 (en) * | 2021-06-07 | 2022-12-15 | 三菱重工業株式会社 | Redox flow battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3574514B2 (en) | 2004-10-06 |
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