JPH0821400B2 - Electrolyte circulation type secondary battery - Google Patents
Electrolyte circulation type secondary batteryInfo
- Publication number
- JPH0821400B2 JPH0821400B2 JP62049474A JP4947487A JPH0821400B2 JP H0821400 B2 JPH0821400 B2 JP H0821400B2 JP 62049474 A JP62049474 A JP 62049474A JP 4947487 A JP4947487 A JP 4947487A JP H0821400 B2 JPH0821400 B2 JP H0821400B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- conductive plate
- frame body
- positive electrode
- negative electrode
- 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.)
- Expired - Lifetime
Links
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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- 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
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、電解液を循環して充放電する電解液循環
型２次電池に関するものであり、特に単位セルを直列に
接続した多段接続型の電解液循環型２次電池の双極板の
構造に関するものである。Description: TECHNICAL FIELD The present invention relates to an electrolytic solution circulating secondary battery that circulates and charges an electrolytic solution, and particularly relates to a multistage connection type in which unit cells are connected in series. The present invention relates to the structure of the bipolar plate of the electrolytic solution circulation type secondary battery.
［従来の技術］ 電解循環型２次電池としては、たとえばレドックスフ
ロー電池が知られている。この種のレドックスフロー電
池では、流通型電解セルを用いており、電極活物質を含
む電解液が、電解液タンクと流通型電解セルとの間を循
環して充放電が行なわれる。電解液としては、たとえば
塩酸が用いられ、電極活物質としては、たとえばFeCl2
およびCrCl3などが用いられている。[Prior Art] As an electrolytic circulation type secondary battery, for example, a redox flow battery is known. In this type of redox flow battery, a flow-through type electrolytic cell is used, and an electrolyte containing an electrode active material is circulated between an electrolytic solution tank and a flow-through type electrolytic cell to perform charging and discharging. Hydrochloric acid is used as the electrolytic solution, and FeCl 2 is used as the electrode active material.
And CrCl 3 are used.
レドックスフロー電池は、特に電力貯蔵用２次電池と
して開発が進められており、その発生電圧を高める必要
があるため、セルを直列に接続した多段接続型のものが
提唱されている。The redox flow battery is being developed especially as a secondary battery for power storage, and since it is necessary to increase the generated voltage, a multi-stage connection type cell in which cells are connected in series has been proposed.
第７図に、多段接続型のレドックスフロー電池の概略
構成図を示す。第７図において、単位セルは、隔膜１な
らびに該隔膜１の両側に設けられる電池反応をする正極
２および負極３から構成されている。単位セルは、双極
板４を介して直列に多段接続されている。単位セルは、
隔膜１により正極側と負極側に分けられている。単位セ
ル内の正極側には、正極液流入路６および正極液流出路
７がそれぞれ接続されており、該正極液流入路６および
該正極液流出路７は正極液タンク５に接続されている。
単位セル内の負極側も同様に、負極液流入路９および負
極液流出路10が接続されており、該負極液流入路９およ
び該負極液流出路10は負極液タンク８にそれぞれ接続さ
れている。FIG. 7 shows a schematic configuration diagram of a multi-stage connection type redox flow battery. In FIG. 7, the unit cell is composed of a diaphragm 1, and a positive electrode 2 and a negative electrode 3 which are provided on both sides of the diaphragm 1 and which perform a battery reaction. The unit cells are connected in multiple stages in series via the bipolar plate 4. The unit cell is
It is divided into a positive electrode side and a negative electrode side by a diaphragm 1. The positive electrode solution inflow channel 6 and the positive electrode solution outflow channel 7 are connected to the positive electrode side in the unit cell, respectively. The positive electrode solution inflow channel 6 and the positive electrode solution outflow channel 7 are connected to the positive electrode solution tank 5. .
Similarly, the negative electrode side in the unit cell is connected to the negative electrode liquid inflow passage 9 and the negative electrode liquid outflow passage 10, and the negative electrode liquid inflow passage 9 and the negative electrode liquid outflow passage 10 are connected to the negative electrode liquid tank 8, respectively. There is.
充放電動作に際し、正極液は正極液タンク５から正極
液流入路６を通りセル内の正極側に供給される。供給さ
れた正極液は、電池反応後正極液流出路７を通り再び正
極液タンク５に戻される。負極液も同様にして、負極液
タンク８から負極液流入路９を通り、セル内の負極側に
供給される。供給された負極液は、電池反応後負極液流
出路10を通り再び負極液タンク８内に戻される。多段接
続型レドックスフロー電池のセル構造についてさらに説
明するため、第６図を示す。During the charge / discharge operation, the positive electrode solution is supplied from the positive electrode solution tank 5 through the positive electrode solution inflow path 6 to the positive electrode side in the cell. The supplied positive electrode liquid is returned to the positive electrode liquid tank 5 again through the positive electrode liquid outflow passage 7 after the battery reaction. Similarly, the negative electrode liquid is supplied from the negative electrode liquid tank 8 through the negative electrode liquid inflow path 9 to the negative electrode side in the cell. The supplied negative electrode liquid is returned to the negative electrode liquid tank 8 again through the negative electrode liquid outflow passage 10 after the battery reaction. FIG. 6 is shown in order to further explain the cell structure of the multi-stage connection type redox flow battery.
第６図は、多段接続型のレドックスフロー電池のセル
構造を示す分解斜視図である。隔膜１の両側には、電池
反応する正極２および負極３が位置している。該正極２
のまわりには、枠体12が位置し、該正極２を支持してい
る。負極３のまわりにも同様に、枠体13が位置し、該負
極３を支持している。単位セルは、隔膜１、正極２およ
び負極３ならびにその枠体12および13から構成されてい
る。この単位セルを直列に接続させるため、双極板4a,4
bを介して積層されている。該双極板4a,4bは、導電板お
よび導電板を囲む枠体14,11から構成されている。FIG. 6 is an exploded perspective view showing a cell structure of a multi-stage connection type redox flow battery. On both sides of the diaphragm 1, a positive electrode 2 and a negative electrode 3 that react with the battery are located. The positive electrode 2
A frame body 12 is located around and supports the positive electrode 2. Similarly, a frame 13 is located around the negative electrode 3 to support the negative electrode 3. The unit cell is composed of a diaphragm 1, a positive electrode 2, a negative electrode 3, and frames 12 and 13 thereof. In order to connect these unit cells in series, the bipolar plates 4a, 4
Stacked via b. The bipolar plates 4a and 4b are composed of a conductive plate and frames 14 and 11 surrounding the conductive plate.
枠体12には、貫通孔6b,7b,9b,10bが形成されており、
枠体13にも同様に、貫通孔6d,7d,9d,10dが形成されてい
る。また、双極板4aの枠体14にも、貫通孔6a,7a,9a,10a
が形成されている。それぞれの貫通孔は、積層された際
正極液流入路6,正極液流出路7,負極液流入路９および負
極液流出路10の一部をそれぞれ形成する。Through holes 6b, 7b, 9b, 10b are formed in the frame body 12,
Similarly, through holes 6d, 7d, 9d, and 10d are formed in the frame 13. The frame 14 of the bipolar plate 4a also has through holes 6a, 7a, 9a, 10a.
Are formed. Each of the through holes forms a part of the positive electrode liquid inflow path 6, the positive electrode liquid outflow path 7, the negative electrode liquid inflow path 9, and a part of the negative electrode liquid outflow path 10 when they are laminated.
枠体14には、正極液を正極２に供給するため貫通孔6a
に通じた流入口20と、正極液と正極液流出路７に排出す
るため貫通孔7aに通じた流出口21が形成されている。隣
接する単位セルの双極板4bの枠体11にも同様に、負極液
の流入口22および流出口23が形成されている。枠体12と
正極２との間には、正極２の端縁に沿ってスリット部1
5,16が形成されている。枠体13においても同様に、負極
３との間に、負極３の端縁に沿ってスリット部17,18が
それぞれ形成されている。The frame 14 has a through hole 6a for supplying the positive electrode solution to the positive electrode 2.
An inflow port 20 communicating with the positive electrode liquid and an outflow port 21 communicating with the through hole 7a for discharging to the positive electrode liquid outflow passage 7 are formed. Similarly, an inflow port 22 and an outflow port 23 for the negative electrode liquid are formed in the frame body 11 of the bipolar plates 4b of the adjacent unit cells. Between the frame body 12 and the positive electrode 2, the slit portion 1 is formed along the edge of the positive electrode 2.
5,16 are formed. Similarly, the slits 17 and 18 are formed between the frame 13 and the negative electrode 3 along the edge of the negative electrode 3.
以上の単位セルの構造においては、正極側と負極側が
同様に構成されているので、以下正極側における正極液
の流れについてのみ説明する。正極液は、正極液流入路
６の中を通って流れ、該正極液流入路の途中に形成され
る流入口20から正極２の設けられたセル内に流入する。
流入した正極液は、スリット部15に沿って横方向に流れ
るとともに、流出口21の設けられた側に向かって正極２
上を電池反応しながら流れる。流出口21側の正極２の端
縁に到達した正極液は、スリット部16に沿って集めら
れ、流出口21から正極液流出路７に排出される。In the structure of the unit cell described above, the positive electrode side and the negative electrode side are configured in the same manner, so only the flow of the positive electrode liquid on the positive electrode side will be described below. The positive electrode liquid flows through the positive electrode liquid inflow passage 6 and flows into the cell provided with the positive electrode 2 from the inflow port 20 formed in the middle of the positive electrode liquid inflow passage.
The positive electrode liquid that has flowed in flows laterally along the slit portion 15 and moves toward the side where the outlet 21 is provided.
It flows while reacting with the battery. The positive electrode liquid that has reached the edge of the positive electrode 2 on the outlet 21 side is collected along the slit portion 16 and discharged from the outlet 21 to the positive electrode outflow passage 7.
［発明が解決しようとする問題点］ 以上説明したように、単位セルを多段接続して発生電
圧を高めることは従来から行なわれているが、電力貯蔵
用としては、これとともに単位セル内での充放電量を大
きくする必要もある。したがって、単位セルを大形化す
なわち電極面積を大きくする必要が生じてくる。[Problems to be Solved by the Invention] As described above, it has been conventionally performed to connect unit cells in multiple stages to increase the generated voltage. It is also necessary to increase the charge / discharge amount. Therefore, it becomes necessary to increase the size of the unit cell, that is, increase the electrode area.
しかしながら、このように大形化しようとすると、双
極板の導電板を大きくしなければならず、グラファイト
板などの導電板は一般に高価であるため、電池全体が高
価格化するという問題を生じる。また、電池全体におい
て導電板が占める重量の割合は比較的大きく、したがっ
て導電板を大形化すると、電池全体の重量が大きくなる
という問題も生じる。However, in order to increase the size in this way, the conductive plate of the bipolar plate has to be made large, and the conductive plate such as a graphite plate is generally expensive, which causes a problem that the cost of the entire battery increases. In addition, the weight ratio of the conductive plate in the entire battery is relatively large, so that if the conductive plate is made larger, the weight of the entire battery also increases.
そこで、導電板の厚みは大きくせず、面積のみを大き
くすることが必要になる。しかしながら、面積のみを大
きくし厚みを薄いままにすると、新たな問題を生じる。
この問題を説明するため、第８図を示す。第８図は、従
来のレドックスフロー電池の双極板の枠体の一部を示す
斜視図である。導電板は、この枠体14の内周面14aに接
触して支持されるのであるが、導電板の厚みが大きくな
らないとすれば、導電板と枠体の内周面14aとの間の接
着部分の面積が小さくなり、この接着部分の強度が不足
するという問題を生じる。また、導電板の厚みをたとえ
ば約１ミリとし、これとともに枠体の厚みも約１ミリに
するとすれば、第８図に図示されているような流入口20
の形成も困難となる。Therefore, it is necessary to increase only the area of the conductive plate without increasing its thickness. However, if only the area is increased and the thickness remains thin, a new problem occurs.
To illustrate this problem, FIG. 8 is shown. FIG. 8 is a perspective view showing a part of a frame body of a bipolar plate of a conventional redox flow battery. The conductive plate is in contact with and supported by the inner peripheral surface 14a of the frame body 14, but if the thickness of the conductive plate is not increased, the adhesion between the conductive plate and the inner peripheral surface 14a of the frame body. This causes a problem that the area of the portion becomes small and the strength of the adhesive portion becomes insufficient. Further, assuming that the thickness of the conductive plate is, for example, about 1 mm and the thickness of the frame body is also about 1 mm, the inlet port 20 as shown in FIG.
Is also difficult to form.
それゆえに、この発明の目的は、このような導電板の
大形化に伴なう従来の問題を解消するためなされたもの
であり、電力貯蔵用として最適な電解液循環型２次電池
を提供することにある。Therefore, an object of the present invention is to solve the conventional problems associated with the increase in size of such a conductive plate, and to provide an electrolyte circulating secondary battery most suitable for power storage. To do.
［問題点を解決するための手段および作用］ この発明の電解液循環型２次電池では、導電板が枠体
により挾まれて支持されていることを特徴としている。
従来のように、導電板の外周面と枠体の内周面との間で
接着して支持する場合には、導電板の厚みと枠体の厚み
をほぼ同じにする必要があり、導電板の厚みを薄くする
につれ枠体との接触面積が小さくなり、かつ枠体の厚み
も小さくなって流出口または流入口の形成が難しくなっ
た。[Means and Actions for Solving Problems] The electrolytic solution circulating secondary battery of the present invention is characterized in that the conductive plate is sandwiched and supported by the frame body.
When the outer peripheral surface of the conductive plate and the inner peripheral surface of the frame are adhered and supported as in the conventional case, the thickness of the conductive plate and the thickness of the frame need to be substantially the same. The contact area with the frame becomes smaller as the thickness of the frame becomes thinner, and the thickness of the frame also becomes smaller, making it difficult to form the outflow port or the inflow port.
これに対して、この発明によれば、導電板が枠体によ
り挾まれて支持されるため、導電板の厚みが薄くなって
も枠体との間の接触面積が小さくなることはない。ま
た、枠体の厚みも導電板の厚みに合わせて小さくする必
要がないため、流出口および流入口の形成も困難になる
ことはない。On the other hand, according to the present invention, since the conductive plate is sandwiched and supported by the frame body, the contact area with the frame body does not become small even if the conductive plate becomes thin. Further, since it is not necessary to reduce the thickness of the frame body according to the thickness of the conductive plate, it is not difficult to form the outflow port and the inflow port.
［実施例］ 第１図は、この発明の一実施例を示す分解斜視図であ
る。第１図に示す双極板30の第１の枠体31には、導電板
32を嵌めることのできる大きさの枠が形成されており、
この枠の周囲には、導電板32を挾持するための挾持部34
が枠体31の中央に向かって延びるように形成されてい
る。また、もう一方の第２の枠体33にも、同様に導電板
32を嵌め入れることのできる大きさの枠が形成されてお
り、この枠の周囲からは、枠の中央に向かって延びる挾
持部36が第１図に示すとおり、挾持部34および挾持部36
はそれぞれ、第１の枠体31および第２の枠体33におい
て、他の部分よりも厚みが薄くされている。[Embodiment] FIG. 1 is an exploded perspective view showing an embodiment of the present invention. The first frame 31 of the bipolar plate 30 shown in FIG.
A frame of a size that can fit 32 is formed,
A gripping portion 34 for gripping the conductive plate 32 is provided around the frame.
Are formed so as to extend toward the center of the frame body 31. In addition, the other second frame 33 is also provided with a conductive plate in the same manner.
A frame having a size into which 32 can be fitted is formed, and a holding portion 36 extending from the periphery of the frame toward the center of the frame is a holding portion 34 and a holding portion 36 as shown in FIG.
In each of the first frame body 31 and the second frame body 33, each has a smaller thickness than other portions.
第１図に示すとおり、導電板32は、厚み方向に重ねら
れる第１の枠体31と第２の枠体33との間に嵌め込まれ
る。また導電板32は、第１の枠体31の挾持部34と第２の
枠体33の挾持部36に挾まれることにより支持される。挾
持部34,36と導電板32は、接着剤により接着され、枠体3
1,33による支持を補強するとともに、導電板32を境にし
て一方から他方に電解液が漏れることのないようにされ
ている。As shown in FIG. 1, the conductive plate 32 is fitted between the first frame body 31 and the second frame body 33 that are stacked in the thickness direction. Further, the conductive plate 32 is supported by being sandwiched between the holding portion 34 of the first frame body 31 and the holding portion 36 of the second frame body 33. The sandwiching portions 34, 36 and the conductive plate 32 are bonded by an adhesive to form the frame 3
The support by 1, 33 is reinforced, and the electrolytic solution does not leak from one side to the other side with the conductive plate 32 as a boundary.
枠体31および枠体33には、同じ位置に貫通孔37,39が
形成されており、枠体31には該貫通孔37に通じる流入口
38が形成されている。また、重ね合わされた際、流入口
38が位置する導電板32の部分には、切欠35が形成されて
いる。貫通孔37,39を流れる電解液は、流入口38を通
り、切欠35からセル内部（第１図においては導電板32の
図面上側に構成されるセル内部）に導かれる。Through holes 37 and 39 are formed at the same position in the frame body 31 and the frame body 33, and the frame body 31 has an inflow port communicating with the through hole 37.
38 are formed. Also, when overlapped, the inlet
A cutout 35 is formed in the portion of the conductive plate 32 where the 38 is located. The electrolytic solution flowing through the through holes 37 and 39 passes through the inflow port 38 and is guided from the notch 35 to the inside of the cell (in FIG. 1, the inside of the cell formed above the conductive plate 32 in the drawing).
この実施例において、２つの枠体の挾持部はいずれも
その厚みを枠体よりも薄くして、導電板を挾持できるよ
うに形成されているが、一方の枠体の挾持部のみを導電
板の厚み分だけ薄くし、他方の枠体の挾持部は枠体と同
じ厚みに構成して、導電板を挾持させてもよい。In this embodiment, the holding portions of the two frame bodies are both formed to have a thickness smaller than that of the frame body so as to be able to hold the conductive plate. However, only the holding portion of one frame body has the conductive plate. May be thinned by the thickness of the other frame, and the holding portion of the other frame may be configured to have the same thickness as the frame so that the conductive plate can be held.
この発明に用いられる導電板としては、従来から使用
されているグラファイト板や、あるいは樹脂中にカーボ
ンを練り込んで成形されたいわゆるセミグラシカーボン
板なども使用することができる。特に、セミグラシカー
ボン板はグラファイト板に比べ機械的強度が高いので、
厚みを薄くしてその機械的強度が問題となる場合には、
有効に利用され得る。また、これらのもの以外でも、耐
酸性を有し、かつ電解液を透過させないものであれば、
金属板や導電性プラスチック板などを用いることもでき
る。As the conductive plate used in the present invention, a graphite plate which has been conventionally used, or a so-called semi-grass carbon plate formed by kneading carbon into resin can be used. Especially, since the semi-grass carbon plate has higher mechanical strength than the graphite plate,
When the thickness is reduced and its mechanical strength becomes a problem,
It can be used effectively. Further, other than these, as long as it has acid resistance and does not allow the electrolyte solution to permeate,
A metal plate or a conductive plastic plate can also be used.
この発明に用いられる枠体としては、塩化ビニル樹脂
等を使用することができるが、使用する電解液に応じた
耐酸性や絶縁性を有すればその他の材質も使用可能であ
ることは言うまでもない。As the frame used in the present invention, vinyl chloride resin or the like can be used, but it goes without saying that other materials can be used as long as they have acid resistance and insulating properties according to the electrolytic solution used. .
第２図〜第４図は、この発明の他の実施例を示す正面
図であり、第２図は枠体の一方、第３図は導電板、第４
図は枠体の他方をそれぞれ示している。第２図におい
て、41は枠体、47a〜47fは貫通孔、48bは流出口、48d,4
8fは流入口、44は挾持部を示している。第３図におい
て、42は導電板、45a〜45fは切欠を示している。第４図
において、43は枠体、46は挾持部、49a〜49fは貫通孔、
48a,48cは流出口、48eは流入口を示している。2 to 4 are front views showing another embodiment of the present invention, FIG. 2 is one of the frames, FIG. 3 is a conductive plate, and FIG.
The figure shows the other of the frames, respectively. In FIG. 2, 41 is a frame, 47a to 47f are through holes, 48b is an outlet, and 48d, 4.
8f is an inlet, 44 is a holding part. In FIG. 3, 42 is a conductive plate and 45a to 45f are notches. In FIG. 4, 43 is a frame, 46 is a holding part, 49a to 49f are through holes,
Reference numerals 48a and 48c denote outlets, and 48e denotes an inlet.
この実施例の双極板は、第２図に示す枠体41を、第３
図に示す導電板42の下に、第４図に示す枠体43を第３図
に示す導電板42の上に配置し、導電板42を枠体41,43で
挾持することにより構成される。第２図において、一点
鎖線で示す部分は重ね合わせた際の導電板の外周の位置
を示している。同様に、第４図においても、一点鎖線は
重ね合わせた際の導電板の外周の位置を示している。The bipolar plate of this embodiment has a frame body 41 shown in FIG.
The frame body 43 shown in FIG. 4 is arranged below the conductive plate 42 shown in the figure, and is arranged on the conductive plate 42 shown in FIG. 3, and the conductive plate 42 is held between the frame bodies 41 and 43. . In FIG. 2, the portion indicated by the alternate long and short dash line shows the position of the outer periphery of the conductive plates when they are superposed. Similarly, also in FIG. 4, the alternate long and short dash line indicates the position of the outer periphery of the conductive plates when they are superposed.
貫通孔47e,49eを流れる電解液は、流入口48eを通り、
第３図に示す導電板42の図面手前側に構成されるセル内
に流入し、流出口48a,48cから、貫通孔49a,49cを通り流
出される。また貫通孔47d,49dおよび貫通孔47f,49fを通
る電解液は、流入口48d,48fを通り、第３図に示す導電
板42の図面奥側に構成されるセル内に流入し、流出口48
bから、貫通孔47bを通り流出される。The electrolytic solution flowing through the through holes 47e, 49e passes through the inflow port 48e,
It flows into the cell formed on the front side of the conductive plate 42 shown in FIG. 3, and flows out from the outlets 48a and 48c through the through holes 49a and 49c. Further, the electrolytic solution passing through the through holes 47d, 49d and the through holes 47f, 49f passes through the inflow ports 48d, 48f, flows into the cell formed on the back side of the conductive plate 42 shown in FIG. 48
The b flows out through the through hole 47b.
第２図〜第４図に示した実施例では、流出口および流
入口がそれぞれ３箇所形成されているが、この発明はこ
のような数に限定されるものでないことは言うまでもな
い。In the embodiment shown in FIGS. 2 to 4, three outflow ports and three inflow ports are formed, but it goes without saying that the present invention is not limited to this number.
以上の実施例では、導電板を別個に成形された枠体で
挾むことによる挾持しているが、この発明では、たとえ
ば枠体形状を有した型に導電板を置き、ここに液状樹脂
等を注入して、注型法により枠体を成形させると同時に
導電板をこの成形された枠体で挾持させてもよい。In the above examples, the conductive plate is sandwiched by the separately molded frame body, but in the present invention, the conductive plate is placed in a mold having a frame shape, for example, and liquid resin or the like is placed therein. May be injected to mold the frame body by a casting method, and at the same time, the conductive plate may be held by the molded frame body.
第５図は、この発明のさらに他の実施例を示す斜視図
であり、双極板の枠体内に電極を収納した状態を示して
いる。第５図において、隔膜１の両側に配置された双極
板50,60には、それぞれ図示されない導電板が枠体51,53
および枠体61,63により挾持されており、導電板の上に
は正極２およびその裏側で図示されない負極が配置して
いる。これらの正極および負極は、枠体の挾持部の厚み
によって形成される枠内の凹部に収納されている。した
がって、このような構造にすることにより、電極を支持
する枠体が不要となるため、簡易な構造とすることがで
き、また低価格化も図ることができる。FIG. 5 is a perspective view showing still another embodiment of the present invention, showing a state in which the electrodes are housed in the frame body of the bipolar plate. In FIG. 5, conductive plates (not shown) are provided on the bipolar plates 50 and 60 arranged on both sides of the diaphragm 1, respectively.
It is sandwiched between the frames 61 and 63, and the positive electrode 2 and the negative electrode (not shown) are arranged on the back side of the positive electrode 2 on the conductive plate. The positive electrode and the negative electrode are housed in a recess in the frame formed by the thickness of the holding portion of the frame. Therefore, with such a structure, a frame for supporting the electrodes is not required, so that the structure can be simplified and the cost can be reduced.
［発明の効果］ 以上説明したように、この発明によれば、従来電極の
大形化に伴なう問題とされている電池の重量増加や高価
格化を解消することができる。したがって、この発明
は、電力貯蔵用２次電池として有効に利用され得るもの
である。[Effects of the Invention] As described above, according to the present invention, it is possible to eliminate the increase in weight and the increase in price of a battery, which have been the problems associated with the increase in the size of conventional electrodes. Therefore, the present invention can be effectively used as a secondary battery for power storage.
なお、実施例では、電解液循環型２次電池としてレド
ックスフロー電池を例示して説明したが、この発明はこ
のようなレドックスフロー電池に限定されるものではな
く、電解液が循環して充放電するタイプの２次電池であ
ればどのようなものにも応用され得るものである。In the examples, the redox flow battery was described as an example of the electrolytic solution circulating secondary battery, but the present invention is not limited to such a redox flow battery, and the electrolytic solution circulates to charge and discharge. It can be applied to any type of secondary battery of this type.
第１図は、この発明の一実施例を示す分解斜視図であ
る。第２図は、この発明の他の実施例の枠体の一方を示
す正面図である。第３図は、同じくこの発明の他の実施
例の導電板を示す正面図である。第４図は、同じくこの
発明の他の実施例の枠体の他方を示す正面図である。第
５図は、この発明のさらに他の実施例の双極板の枠体内
に電極を収納した状態を示す斜視図である。第６図は、
従来のドレックスフロー電池の単位セル構造を示す分解
斜視図である。第７図は、従来のレドックスフロー電池
を示す概略構成図である。第８図は、従来のレドックス
フロー電池の双極板の枠体を示す斜視図である。 図において、30,50,60は双極板、31,33,41,43,51,53,6
1,63は枠体、32,42は導電板、34,36,44,46は枠体の挾持
部を示す。FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 2 is a front view showing one of the frames of another embodiment of the present invention. FIG. 3 is a front view showing a conductive plate of another embodiment of the present invention. FIG. 4 is a front view showing the other side of the frame body of another embodiment of the present invention. FIG. 5 is a perspective view showing a state in which electrodes are housed in the frame body of a bipolar plate according to still another embodiment of the present invention. Figure 6 shows
FIG. 7 is an exploded perspective view showing a unit cell structure of a conventional Drexflow battery. FIG. 7 is a schematic configuration diagram showing a conventional redox flow battery. FIG. 8 is a perspective view showing a frame body of a bipolar plate of a conventional redox flow battery. In the figure, 30,50,60 are bipolar plates, 31,33,41,43,51,53,6
1, 63 is a frame body, 32, 42 are conductive plates, and 34, 36, 44, 46 are holding parts of the frame body.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水浪 和人 大阪府大阪市此花区島屋１丁目１番３号 住友電気工業株式会社大阪製作所内 (56)参考文献 特開 昭62−88278（ＪＰ，Ａ) 特開 昭62−229660（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuto Mizunami 1-3-3 Shimaya, Konohana-ku, Osaka City, Osaka Prefecture Sumitomo Electric Industries, Ltd. (56) Reference JP-A-62-88278 (JP , A) JP-A-62-229660 (JP, A)
Claims (1)
単位セルを構成し、導電板を枠体で支持してなる双極板
を介して前記単位セルを積層した電解液循環型２次電池
において、 前記導電板が、厚み方向に重ねられた第１の枠体と第２
の枠体との間に嵌め込まれており、かつ前記第１の枠体
において他の部分より厚みが薄くされた挟持部と、前記
第２の枠体において他の部分より厚みが薄くされた挟持
部に挟まれることにより支持されることを特徴とする、
電解液循環型２次電池。1. An electrolytic solution circulation type secondary in which unit cells are formed by disposing electrodes that react with a battery on both sides of a diaphragm, and the unit cells are laminated via a bipolar plate in which a conductive plate is supported by a frame. In the battery, the conductive plate includes a first frame body and a second frame body that are stacked in a thickness direction.
And a sandwiching portion that is fitted between the other frame portion and the other frame portion of the first frame body, and a sandwiching portion that is thinner than the other portion of the second frame body. Characterized by being supported by being sandwiched between parts,
Electrolyte circulation type secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049474A JPH0821400B2 (en) | 1987-03-04 | 1987-03-04 | Electrolyte circulation type secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049474A JPH0821400B2 (en) | 1987-03-04 | 1987-03-04 | Electrolyte circulation type secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63216271A JPS63216271A (en) | 1988-09-08 |
| JPH0821400B2 true JPH0821400B2 (en) | 1996-03-04 |
Family
ID=12832148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62049474A Expired - Lifetime JPH0821400B2 (en) | 1987-03-04 | 1987-03-04 | Electrolyte circulation type secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0821400B2 (en) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8873940B2 (en) | 2010-08-06 | 2014-10-28 | Dyson Technology Limited | Fan assembly |
| US8882451B2 (en) | 2010-03-23 | 2014-11-11 | Dyson Technology Limited | Fan |
| US8894354B2 (en) | 2010-09-07 | 2014-11-25 | Dyson Technology Limited | Fan |
| US8932028B2 (en) | 2009-03-04 | 2015-01-13 | Dyson Technology Limited | Fan assembly |
| US8967979B2 (en) | 2010-10-18 | 2015-03-03 | Dyson Technology Limited | Fan assembly |
| US8967980B2 (en) | 2010-10-18 | 2015-03-03 | Dyson Technology Limited | Fan assembly |
| US9004878B2 (en) | 2009-11-06 | 2015-04-14 | Dyson Technology Limited | Fan having a magnetically attached remote control |
| US9011116B2 (en) | 2010-05-27 | 2015-04-21 | Dyson Technology Limited | Device for blowing air by means of a nozzle assembly |
| USD728092S1 (en) | 2013-08-01 | 2015-04-28 | Dyson Technology Limited | Fan |
| USD728770S1 (en) | 2013-08-01 | 2015-05-05 | Dyson Technology Limited | Fan |
| USD728769S1 (en) | 2013-08-01 | 2015-05-05 | Dyson Technology Limited | Fan |
| USD729375S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729374S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729372S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729373S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729376S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729925S1 (en) | 2013-03-07 | 2015-05-19 | Dyson Technology Limited | Fan |
| US9127855B2 (en) | 2011-07-27 | 2015-09-08 | Dyson Technology Limited | Fan assembly |
| US9127689B2 (en) | 2009-03-04 | 2015-09-08 | Dyson Technology Limited | Fan assembly |
| US9151299B2 (en) | 2012-02-06 | 2015-10-06 | Dyson Technology Limited | Fan |
| USD746425S1 (en) | 2013-01-18 | 2015-12-29 | Dyson Technology Limited | Humidifier |
| USD746966S1 (en) | 2013-01-18 | 2016-01-05 | Dyson Technology Limited | Humidifier |
| USD747450S1 (en) | 2013-01-18 | 2016-01-12 | Dyson Technology Limited | Humidifier |
| US9249809B2 (en) | 2012-02-06 | 2016-02-02 | Dyson Technology Limited | Fan |
| USD749231S1 (en) | 2013-01-18 | 2016-02-09 | Dyson Technology Limited | Humidifier |
| US9283573B2 (en) | 2012-02-06 | 2016-03-15 | Dyson Technology Limited | Fan assembly |
| US9328739B2 (en) | 2012-01-19 | 2016-05-03 | Dyson Technology Limited | Fan |
| US9366449B2 (en) | 2012-03-06 | 2016-06-14 | Dyson Technology Limited | Humidifying apparatus |
| US9410711B2 (en) | 2013-09-26 | 2016-08-09 | Dyson Technology Limited | Fan assembly |
| US9458853B2 (en) | 2011-07-27 | 2016-10-04 | Dyson Technology Limited | Fan assembly |
| US9513028B2 (en) | 2009-03-04 | 2016-12-06 | Dyson Technology Limited | Fan assembly |
| US9568021B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
| US9568006B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
| US9599356B2 (en) | 2014-07-29 | 2017-03-21 | Dyson Technology Limited | Humidifying apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682244B2 (en) * | 2001-06-12 | 2005-08-10 | 住友電気工業株式会社 | Cell frame for redox flow battery and redox flow battery |
| JP2002367658A (en) * | 2001-06-12 | 2002-12-20 | Sumitomo Electric Ind Ltd | Cell frame for redox flow cell, and redox flow cell |
| US9276274B2 (en) * | 2012-05-10 | 2016-03-01 | Imergy Power Systems, Inc. | Vanadium flow cell |
| JP6247590B2 (en) * | 2014-05-07 | 2017-12-13 | 旭化成株式会社 | Cell stack and storage battery |
| US10566644B2 (en) * | 2014-11-06 | 2020-02-18 | Sumitomo Electric Industries, Ltd. | Battery cell and redox flow battery |
| WO2019167143A1 (en) * | 2018-02-27 | 2019-09-06 | 住友電気工業株式会社 | Frame body, cell frame, cell stack, and redox flow battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6288278A (en) * | 1985-10-15 | 1987-04-22 | Sumitomo Electric Ind Ltd | Electrolyte circulation type secondary cell |
| JPS62229660A (en) * | 1986-03-29 | 1987-10-08 | Mitsubishi Plastics Ind Ltd | Manufacture of electrode plate for cell |
-
1987
- 1987-03-04 JP JP62049474A patent/JPH0821400B2/en not_active Expired - Lifetime
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9513028B2 (en) | 2009-03-04 | 2016-12-06 | Dyson Technology Limited | Fan assembly |
| US8932028B2 (en) | 2009-03-04 | 2015-01-13 | Dyson Technology Limited | Fan assembly |
| US9127689B2 (en) | 2009-03-04 | 2015-09-08 | Dyson Technology Limited | Fan assembly |
| US9599368B2 (en) | 2009-03-04 | 2017-03-21 | Dyson Technology Limited | Nozzle for bladeless fan assembly with heater |
| US9004878B2 (en) | 2009-11-06 | 2015-04-14 | Dyson Technology Limited | Fan having a magnetically attached remote control |
| US8882451B2 (en) | 2010-03-23 | 2014-11-11 | Dyson Technology Limited | Fan |
| US9011116B2 (en) | 2010-05-27 | 2015-04-21 | Dyson Technology Limited | Device for blowing air by means of a nozzle assembly |
| US8873940B2 (en) | 2010-08-06 | 2014-10-28 | Dyson Technology Limited | Fan assembly |
| US8894354B2 (en) | 2010-09-07 | 2014-11-25 | Dyson Technology Limited | Fan |
| US8967979B2 (en) | 2010-10-18 | 2015-03-03 | Dyson Technology Limited | Fan assembly |
| US8967980B2 (en) | 2010-10-18 | 2015-03-03 | Dyson Technology Limited | Fan assembly |
| US9458853B2 (en) | 2011-07-27 | 2016-10-04 | Dyson Technology Limited | Fan assembly |
| US9335064B2 (en) | 2011-07-27 | 2016-05-10 | Dyson Technology Limited | Fan assembly |
| US9127855B2 (en) | 2011-07-27 | 2015-09-08 | Dyson Technology Limited | Fan assembly |
| US9291361B2 (en) | 2011-07-27 | 2016-03-22 | Dyson Technology Limited | Fan assembly |
| US9328739B2 (en) | 2012-01-19 | 2016-05-03 | Dyson Technology Limited | Fan |
| US9151299B2 (en) | 2012-02-06 | 2015-10-06 | Dyson Technology Limited | Fan |
| US9249809B2 (en) | 2012-02-06 | 2016-02-02 | Dyson Technology Limited | Fan |
| US9283573B2 (en) | 2012-02-06 | 2016-03-15 | Dyson Technology Limited | Fan assembly |
| US9366449B2 (en) | 2012-03-06 | 2016-06-14 | Dyson Technology Limited | Humidifying apparatus |
| US9568006B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
| US9568021B2 (en) | 2012-05-16 | 2017-02-14 | Dyson Technology Limited | Fan |
| USD746425S1 (en) | 2013-01-18 | 2015-12-29 | Dyson Technology Limited | Humidifier |
| USD746966S1 (en) | 2013-01-18 | 2016-01-05 | Dyson Technology Limited | Humidifier |
| USD747450S1 (en) | 2013-01-18 | 2016-01-12 | Dyson Technology Limited | Humidifier |
| USD749231S1 (en) | 2013-01-18 | 2016-02-09 | Dyson Technology Limited | Humidifier |
| USD729372S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729374S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729375S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729925S1 (en) | 2013-03-07 | 2015-05-19 | Dyson Technology Limited | Fan |
| USD729373S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD729376S1 (en) | 2013-03-07 | 2015-05-12 | Dyson Technology Limited | Fan |
| USD728769S1 (en) | 2013-08-01 | 2015-05-05 | Dyson Technology Limited | Fan |
| USD728770S1 (en) | 2013-08-01 | 2015-05-05 | Dyson Technology Limited | Fan |
| USD728092S1 (en) | 2013-08-01 | 2015-04-28 | Dyson Technology Limited | Fan |
| US9410711B2 (en) | 2013-09-26 | 2016-08-09 | Dyson Technology Limited | Fan assembly |
| US9599356B2 (en) | 2014-07-29 | 2017-03-21 | Dyson Technology Limited | Humidifying apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63216271A (en) | 1988-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0821400B2 (en) | Electrolyte circulation type secondary battery | |
| JP2003504811A (en) | Bipolar multicell electrochemical reactor with membrane separation | |
| WO2007072781A1 (en) | Electrical storage device | |
| KR101353961B1 (en) | Stack structure of electrochemical flow cell and redox flow battery including the same | |
| JP2002246061A (en) | Cell frame structure for redox flow secondary cell, and manufacturing method therefor | |
| AU702188B2 (en) | Component design for an electric energy storing device | |
| JP3594345B2 (en) | Fuel cell separator | |
| JP2017016788A (en) | Redox flow battery cell, redox flow battery cell stack, and redox flow battery | |
| CN207834459U (en) | Bipolar plates, battery unit frame, battery cell stack and redox flow batteries | |
| JP3574514B2 (en) | Redox flow type secondary battery system | |
| JP2842600B2 (en) | Cell stack for electrolyte circulating type secondary battery and cell stack mounting member | |
| JPS6158159A (en) | Secondary battery | |
| JP2000188116A (en) | Cell frame, cell stack and battery using them | |
| JP3494689B2 (en) | Electrolyte flow battery | |
| JPH0334843Y2 (en) | ||
| JPH01143161A (en) | Electrolyte circulation type battery | |
| JPH05166550A (en) | Electrolyte circulation type layered secondary battery | |
| JPH10308233A (en) | Frame for redox flow battery | |
| JPS6151636B2 (en) | ||
| WO2020158960A1 (en) | Integrated bipolar plate for redox flow battery | |
| JP2853296B2 (en) | Bipolar electrode plate for stacked batteries | |
| JPH05135807A (en) | Manufacture of stacked battery | |
| JPH02148580A (en) | Electrolyte circulation layer-built cell | |
| JPH0339207A (en) | Molding device of plastic electrode | |
| JPH0548363Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |