JP3386410B2 - Bipolar plate with frame for battery cell of redox flow battery and redox flow battery - Google Patents
Bipolar plate with frame for battery cell of redox flow battery and redox flow batteryInfo
- Publication number
- JP3386410B2 JP3386410B2 JP18321499A JP18321499A JP3386410B2 JP 3386410 B2 JP3386410 B2 JP 3386410B2 JP 18321499 A JP18321499 A JP 18321499A JP 18321499 A JP18321499 A JP 18321499A JP 3386410 B2 JP3386410 B2 JP 3386410B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- plate
- carbon plate
- carbon
- redox flow
- 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 - Fee Related
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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
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- Fuel Cell (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、レドックスフロ
ー電池の電池セル用フレーム付き双極板に関するもので
あり、より特定的には、電池効率の低下、カーボン板の
劣化、電解液の劣化等を引起こすことがないように改良
されたレドックスフロー電池の電池セル用フレーム付き
双極板に関する。この発明は、また、そのような電池セ
ル用フレーム付き双極板を用いたレドックスフロー電池
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bipolar plate with a frame for a battery cell of a redox flow battery, and more specifically, it reduces battery efficiency, deterioration of carbon plate, deterioration of electrolyte solution, and the like. With frame for battery cell of redox flow battery improved so as not to cause
Regarding bipolar plates . This invention also redox flow batteries using such cell frames with the bipolar plate
About the.
【０００２】[0002]
【従来の技術】従来、双極板として機能するカーボン板
と、このカーボン板の外周部に固定して設けられるフレ
ームとは接着剤で接着されていた。また、樹脂にカーボ
ンを練り込んだプラスチックカーボンを双極板として用
いることにより、フレームとの接着について、溶剤を使
用した溶着が可能となるものもあった。次に、従来のレ
ドックスフロー電池の製造方法について説明する。ま
ず、溶剤を用いて樹脂とカーボンを練り込んで、湿式作
製カーボン板を作製する。次に、溶剤を用いず、熱圧延
工程から、乾式作製カーボン板を作製する。その後、こ
れらのカーボン板をフレームに嵌め込み、溶剤で溶着し
て、フレームとカーボン板とを一体化させる。これを用
いて、レドックスフロー電池を組み上げる。2. Description of the Related Art Conventionally, a carbon plate functioning as a bipolar plate and a frame fixedly provided on the outer peripheral portion of the carbon plate have been bonded with an adhesive. Further, by using plastic carbon obtained by kneading carbon into resin as a bipolar plate, there has been a case where welding with a solvent is possible for adhesion to a frame. Next, a method for manufacturing a conventional redox flow battery will be described. First, a resin and carbon are kneaded with a solvent to prepare a wet-prepared carbon plate. Next, without using a solvent, a dry-processed carbon plate is manufactured by a hot rolling process. Then, these carbon plates are fitted into the frame and welded with a solvent to integrate the frame and the carbon plate. Using this, a redox flow battery is assembled.
【０００３】[0003]
【発明が解決しようとする課題】接着剤で一体化させる
という従来の方法で作製したフレーム付きカーボン板
は、貼り合わせに用いた接着剤がセル内に循環される電
解液に侵され、ひいては、カーボン板とフレーム枠とが
剥離する。その結果、シール不良が生じ、また接着剤が
膨潤することによって、送液部（スリット部）の閉塞等
が生じていた。The carbon plate with a frame manufactured by the conventional method of integrating with an adhesive is attacked by the electrolytic solution circulated in the cell, and the adhesive used for bonding is, The carbon plate and the frame are separated. As a result, poor sealing occurred and the adhesive swelled, resulting in blockage of the liquid-sending portion (slit portion).
【０００４】一方、溶剤を用いて、樹脂とカーボンを練
り込んで作製した湿式作製カーボン板と、フレームとを
溶着で一体化する場合には、カーボン板内に溶剤が抜け
た微小な孔が存在するため、貼り合わせの際における溶
剤の乾きが速くなる。そのため、フレーム貼り合わせの
作業性が非常によかった。On the other hand, when a wet-prepared carbon plate prepared by kneading a resin and carbon using a solvent is integrated with a frame by welding, minute holes in which the solvent has escaped exist in the carbon plate. Therefore, the solvent dries quickly during the bonding. Therefore, the workability of laminating the frames was very good.
【０００５】しかし、上記カーボン板には、その作製の
際に用いた溶剤が抜けた孔が存在していたため、充放電
の際、透過率が高くなる。そのために、湿式作製カーボ
ン板内を電解液中のイオンが透過し、ひいては、そのカ
ーボン板に接することのある電圧端子である銅板を劣化
させる可能性があることがわかった。However, the carbon plate has holes in which the solvent used during its manufacture has escaped, so that the transmittance increases during charge and discharge. Therefore, it was found that there is a possibility that ions in the electrolytic solution may permeate through the wet-fabricated carbon plate and eventually deteriorate the copper plate that is a voltage terminal that may come into contact with the carbon plate.
【０００６】また、一方で、カーボン板内に微小な孔が
生じるのを防ぐための工夫もなされている。すなわち、
溶剤を用いず、熱圧延工程を経て作製した乾式作製カー
ボン板をフレームと一体化させ、これを用いて、レドッ
クスフロー電池を作成する。これを充放電すると、湿式
作製カーボン板でみられたような弊害は解消された。し
かし、乾式作製カーボン板と樹脂製フレーム枠との溶着
による一体化の際、カーボン板と溶剤との馴染みが悪
く、フレーム付つきカーボン板の作製の作業性が非常に
悪くなり、不良率が増加した。On the other hand, measures have been taken to prevent the formation of minute holes in the carbon plate. That is,
A dry-produced carbon plate produced through a hot rolling process without using a solvent is integrated with a frame, and using this, a redox flow battery is produced. When this was charged / discharged, the adverse effects as seen in the wet-prepared carbon plate were eliminated. However, when the dry-prepared carbon plate and the resin frame are integrated by welding, the compatibility between the carbon plate and the solvent is poor, and the workability of the carbon plate with the frame becomes extremely poor, increasing the defective rate. did.
【０００７】したがって、カーボン板とフレームとを溶
剤を用いて溶着する際、湿式作製カーボン板のように作
業性がよく、かつ、乾式作製カーボン板のように透過率
が低減されるものが必要であった。Therefore, when welding the carbon plate and the frame using a solvent, it is necessary to use a carbon plate which has good workability like a wet-prepared carbon plate and a reduced transmittance like a dry-prepared carbon plate. there were.
【０００８】また、レドックスフロー電池の電池セル内
において、充放電のための酸化還元反応は、単位体積当
たりの表面積の非常に大きいクロス状もしくはフェルト
状の電極カーボンを媒体として、電解液中の金属イオン
において生じる。しかしながら、電池セルのスリット部
分等、カーボン板上で電極に接することなく、接液する
箇所があるため、その場所でカーボンを介して、電解液
の酸化還元反応が生じる。その場合、カーボン板は単位
体積当たりの表面積が電極に比べて小さいので、カーボ
ン板に高電流密度の反応が生じる。その際、電解液中の
金属イオンに留まらず、カーボン板および、電解液中の
他のイオンも、酸化還元反応に関与する。ひいては、電
池効率の低下、カーボン板の劣化、電解液の劣化等を引
起こす可能性があった。In the redox flow battery battery cell, the redox reaction for charging and discharging uses a cloth or felt-like electrode carbon having a very large surface area per unit volume as a medium and a metal in the electrolyte solution. It occurs in ions. However, since there is a portion on the carbon plate that is in contact with the electrode without coming into contact with the electrode, such as the slit portion of the battery cell, a redox reaction of the electrolytic solution occurs at that portion via the carbon. In that case, since the surface area of the carbon plate per unit volume is smaller than that of the electrode, a reaction of high current density occurs in the carbon plate. At that time, not only the metal ions in the electrolytic solution but also the carbon plate and other ions in the electrolytic solution participate in the redox reaction. As a result, there is a possibility that the battery efficiency may decrease, the carbon plate may deteriorate, the electrolytic solution may deteriorate, and the like.
【０００９】この発明は、上記の問題点を解決するため
になされたものである。The present invention has been made to solve the above problems.
【００１０】[0010]
【課題を解決するための手段】この発明の第１の局面に
従う発明は、電極に電解液を供給し、充放電を行なうレ
ドックスフロー電池に用いられるフレーム付き双極板に
かかり、フレームと、その外周部が前記フレームに嵌め
込まれる、プラスチック樹脂とカーボンから作製された
カーボン板と、上記カーボン板の上記電解液が接触する
部分であり、かつ、上記電極と接しない部分に、額縁状
に形成された絶縁樹脂製シートとを備える。上記絶縁樹
脂製シートは、上記カーボン板の両面または片面に設け
られ、かつ該絶縁樹脂製シートの外周部は、上記カーボ
ン板の前記外周部とともに、上記フレームに嵌め込まれ
ている。この発明によれば、カーボン板の表面に、額縁
状樹脂シートを圧着することで、イオン透過による銅板
の劣化が防止され、またフレーム枠との溶着の際におけ
る作業性の悪さが改良され、さらにカーボン板上の絶縁
シートが圧着された部分における、電解液の酸化還元反
応が防止され、ひいては、カーボン板の劣化が防止され
る。この発明の第２の局面に従うレドックスフロー電池
の電池セル用フレーム付き双極板によれば、上記フレー
ム内を上記電解液が通る送液溝と、平面的に見てその送
液溝に連続してその送液溝と上記電極との間に位置する
整流板とを備え、上記カーボン板の上記電解液が接触す
る部分であり、かつ上記電極が接しない部分は、上記整
流板の対面に位置するカーボン板の部分を含み、上記絶
縁樹脂製シートは、該整流板の対面に位置するカーボン
板の部分に圧着されている。この発明の第３の局面に従
う発明は、電極に電解液を供給し、充放電を行なうレド
ックスフロー電池にかかり、隔膜を間に挟んで、両側に
配置された１対のフレーム付き双極板を備える。また、
上記電極は、上記隔膜と上記１対のフレーム付き双極板
のうちの一方との間、および上記隔膜と上記１対のフレ
ーム付き双極板のうちの他方との間、にそれぞれ配置さ
れている。そして、上記フレーム付き双極板は、フレー
ムと、その外周部が上記フレームに嵌め込まれる、プラ
スチック樹脂とカーボンから作製されたカーボン板と、
上記カーボン板の前記電解液が接触する部分であり、か
つ、前記電極と接しない部分に、額縁状に形成された絶
縁樹脂製シートと、を備える。上記絶縁樹脂製シートは
上記カーボン板の両面または片面に設けられ、かつ該絶
縁樹脂製シートの外周部は、上記カーボン板の上記外周
部とともに、上記フレームに嵌め込まれている。この発
明の第４の局面に従うレドックスフロー電池によれば、
上記フレーム内を上記電解液が通る送液溝と、平面的に
見てその送液溝に連続してその送液溝と上記電極との間
に位置する整流板とを備え、上記カーボン板の上記電解
液が接触する部分であり、かつ上記電極が接しない部分
は、上記整流板の対面に位置するカーボン板の部分を含
み、上記絶縁樹脂製シートは、該整流板の対面に位置す
るカーボン板の部分に圧着されている。The invention according to the first aspect of the present invention relates to a bipolar plate with a frame used for a redox flow battery for supplying and discharging an electrolyte to charge and discharge an electrode, the frame and its outer periphery. The portion fitted into the frame is a carbon plate made of plastic resin and carbon, and a portion of the carbon plate that is in contact with the electrolytic solution, and that is not in contact with the electrode. And an insulating resin sheet. The insulating resin sheet is provided on both sides or one side of the carbon plate, and the outer peripheral portion of the insulating resin sheet is fitted into the frame together with the outer peripheral portion of the carbon plate. According to the present invention, by crimping the frame-shaped resin sheet on the surface of the carbon plate, deterioration of the copper plate due to ion permeation is prevented, and the poor workability during welding with the frame is improved. The oxidation-reduction reaction of the electrolytic solution is prevented in the portion of the carbon plate where the insulating sheet is pressure-bonded, and thus the deterioration of the carbon plate is prevented. A bipolar plate with a frame for a battery cell of a redox flow battery according to a second aspect of the present invention has the above-mentioned flare.
The liquid feed groove through which the above electrolyte passes and
It is located between the liquid feeding groove and the electrode in succession to the liquid groove.
And a rectifying plate is the part electrolyte contacts of the carbon plate and the electrode is not in contact portion includes a portion of the carbon plate positioned facing the integer <br/> flow plate, the The insulating resin sheet is pressure-bonded to the portion of the carbon plate that faces the rectifying plate. The invention according to the third aspect of the present invention relates to a redox flow battery that charges and discharges by supplying an electrolytic solution to electrodes, and includes a pair of bipolar plates with a frame arranged on both sides with a diaphragm interposed therebetween. . Also,
The electrodes are bipolar plates with the diaphragm and the pair of frames.
One of the two, and the diaphragm and the pair of frames.
And the other of the bipolar plates with dome, respectively.
Has been. The bipolar plate with a frame is a frame, and a carbon plate made of a plastic resin and carbon, the outer periphery of which is fitted into the frame,
An insulating resin sheet formed in a frame shape is provided in a portion of the carbon plate that is in contact with the electrolytic solution and that is not in contact with the electrode. The insulating resin sheet is provided on both sides or one side of the carbon plate, and the outer peripheral portion of the insulating resin sheet is fitted into the frame together with the outer peripheral portion of the carbon plate. According to the redox flow battery according to the fourth aspect of the present invention,
In the frame, with the liquid feed groove through which the electrolyte passes
Look between the liquid feed groove and the electrode in succession to the liquid feed groove.
And a rectifying plate is close to a said portion electrolyte contacts of the carbon plate, and the portion where the electrode is not in contact includes a portion of the carbon plate positioned opposite of the current plate, the insulating resin The sheet-made sheet is pressure-bonded to the portion of the carbon plate located opposite to the current plate.
【００１６】[0016]
【発明の実施の形態】以下、この発明の実施の形態を図
について説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１７】参考例１
図１の如く、面積５０００ｃｍ2のカーボン板２を作製
し、このカーボン板２を塩化ビニール樹脂のフレームに
嵌め込む。両者をＴＨＦ（テトラヒドロフラン）で溶着
し、フレームとカーボン板を一体化させた。これを用い
てセルスタックを作製し、充放電試験を行なった。 Reference Example 1 As shown in FIG. 1, a carbon plate 2 having an area of 5000 cm 2 is produced, and the carbon plate 2 is fitted into a vinyl chloride resin frame. Both were welded with THF (tetrahydrofuran), and the frame and the carbon plate were integrated. A cell stack was produced using this and a charge / discharge test was conducted.
【００１８】参考例２
図２の如く、塩素化ポリエチレン、カーボンブラック、
カーボングラファイトを用いて乾式作製した厚み０．６
ｍｍｔのカーボン板（図示せず）に、上記と同成分のも
の、すなわち、塩素化ポリエチレン、カーボンブラッ
ク、カーボングラファイトを溶剤で溶かしたもの（湿式
作製カーボン８）を４０ミクロンの厚みで転写させた。
それとフレームを溶着し、一体化させた。これを用いて
電池を組み、充放電運転を行なった。 Reference Example 2 As shown in FIG. 2, chlorinated polyethylene, carbon black,
Thickness 0.6 made by dry method using carbon graphite
A carbon plate (not shown) having a thickness of 40 μm was transferred to a mmt carbon plate (not shown) having the same components as described above, that is, chlorinated polyethylene, carbon black, and carbon graphite dissolved in a solvent (wet-prepared carbon 8). .
It was welded to the frame and integrated. A battery was assembled using this and charging / discharging operation was performed.
【００１９】実施の形態１
図３、図４および図５の如く、塩素化ポリエチレン、カ
ーボンブラック、カーボングラファイトを用いて乾式作
製した厚み０．６ｍｍｔのカーボン板の、フレーム枠と
の融着代となる部分に、硬質塩ビ製シート（０．１ｍｍ
ｔ）を額縁状に熱圧着した。それを用いてフレームと一
体化させ、電池を組み、充放電運転を行なった。Embodiment 1 As shown in FIGS. 3, 4 and 5, a carbon plate having a thickness of 0.6 mmt, which is dry-produced using chlorinated polyethylene, carbon black, and carbon graphite, is attached to the frame frame with a fusion allowance. Hard PVC sheet (0.1 mm
t) was thermocompression-bonded in a frame shape. Using it, it was integrated with the frame, assembled into a battery, and charged / discharged.
【００２０】実施の形態２
図３、図４、図５の如く、塩素化ポリエチレン、カーボ
ンブラック、カーボングラファイトを用いて乾式作製し
た厚み０．６ｍｍｔのカーボン板の片面に、上記と同成
分を溶剤で溶かしたものを４０μの厚みで転写させた。
さらに、もう片面のフレーム枠との溶着代となる部分
に、硬質塩ビシート（０．１ｍｍｔ）を額縁状に熱圧着
した。それとフレームとを溶着させ、一体化させたもの
で電池を組み、充放電を行なった。Embodiment 2 As shown in FIG. 3, FIG. 4, and FIG. 5, the same components as described above are used as a solvent on one side of a carbon plate having a thickness of 0.6 mmt which is dry-produced using chlorinated polyethylene, carbon black, and carbon graphite. The one melted in (4) was transferred to a thickness of 40 μm.
Further, a hard vinyl chloride sheet (0.1 mmt) was thermocompression-bonded in a frame shape to a portion serving as a welding margin with the frame on the other surface. A battery was assembled by charging and discharging the frame and the frame, and the battery was charged and discharged.
【００２１】以上のフレーム貼り合わせ、および、充放
電試験の結果、次の表に示す評価が得られた。As a result of the above frame bonding and charge / discharge test, the evaluations shown in the following table were obtained.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【００２５】以上説明したとおり、この発明によれば、
カーボン板の電極に接することなく、接液する箇所につ
いて、絶縁シートを圧着させることによって、カーボン
板上の絶縁シートが圧着された部分における、電解液の
酸化還元反応は生じなくなり、ひいては、セルおよび電
解液の劣化および効率の低下が低減される。As described above, according to the present invention,
By contact-bonding the insulating sheet to the portion of the carbon plate that is in contact with the liquid without contacting the electrode, the oxidation-reduction reaction of the electrolytic solution does not occur in the portion where the insulating sheet on the carbon plate is pressed, and the cell and The deterioration of the electrolytic solution and the decrease in efficiency are reduced.
【図１】参考例１に係るレドックスフロー電池のセルフ
レームの概略図である。FIG. 1 is a schematic view of a cell frame of a redox flow battery according to Reference Example 1 .
【図２】参考例２に係るカーボン板の図である。 2 is a diagram of a carbon plate according to Reference Example 2. FIG.
【図３】電極を圧接させた電池セルのフレームの図であ
る。FIG. 3 is a view of a frame of a battery cell in which electrodes are pressed against each other.
【図４】カーボン板の電極に接することなく電解液に接
液する箇所を示した図である。FIG. 4 is a view showing a portion that comes into contact with an electrolytic solution without coming into contact with an electrode of a carbon plate.
【図５】実施の形態１に係る双極板の概略図である。FIG. 5 is a schematic view of a bipolar plate according to the first embodiment .
１ フレーム ２ カーボン板 ３ フレームとカーボン板の貼り合わせ部 ４ 送液溝 ５ 整流板 ６ 電極 ７ 電極に接することなく接液する箇所 ８ 湿式作製カーボン 1 frame 2 carbon plate 3 Laminated part of frame and carbon plate 4 Liquid feeding groove 5 current plate 6 electrodes 7 Locations where liquid comes in contact with the electrode 8 Wet-prepared carbon
フロントページの続き (56)参考文献 特開 平４−4566（ＪＰ，Ａ) 特開 昭51−92043（ＪＰ，Ａ) 特開 平６−231772（ＪＰ，Ａ) 特開 昭63−40267（ＪＰ，Ａ) 特開 平８−7913（ＪＰ，Ａ) 特開 昭63−128560（ＪＰ，Ａ) 実開 平６−7157（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 9/18,8/02 Continuation of the front page (56) Reference JP-A-4-4566 (JP, A) JP-A-51-92043 (JP, A) JP-A-6-231772 (JP, A) JP-A-63-40267 (JP , A) JP-A-8-7913 (JP, A) JP-A-63-128560 (JP, A) Fukukaihei 6-7157 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB) Name) H01M 9 / 18,8 / 02
Claims (4)
レドックスフロー電池に用いられるフレーム付き双極板
であって、 フレームと、 その外周部が前記フレームに嵌め込まれる、プラスチッ
ク樹脂とカーボンから作製されたカーボン板と、 前記カーボン板の前記電解液が接触する部分であり、か
つ、前記電極と接しない部分に、額縁状に形成された絶
縁樹脂製シートと、を備え、 前記絶縁樹脂製シートは前記カーボン板の両面または片
面に設けられ、かつ該絶縁樹脂製シートの外周部は、前
記カーボン板の前記外周部とともに、前記フレームに嵌
め込まれている、レドックスフロー電池の電池セル用フ
レーム付き双極板。1. A bipolar plate with a frame used in a redox flow battery for supplying and discharging an electrode and charging and discharging, comprising a frame and a plastic resin and carbon, the outer periphery of which is fitted into the frame. A carbon plate, and a portion of the carbon plate in contact with the electrolytic solution, and a portion not in contact with the electrode, a frame-shaped insulating resin sheet, and the insulating resin sheet, Is provided on both sides or one side of the carbon plate, and the outer peripheral portion of the insulating resin sheet is fitted into the frame together with the outer peripheral portion of the carbon plate, and the bipolar electrode with a frame for a battery cell of a redox flow battery. Board.
溝と、平面的に見て、その送液溝に連続してその送液溝
と前記電極との間に位置する整流板とを備え、前記カー
ボン板の前記電解液が接触する部分であり、かつ前記電
極が接しない部分は、前記整流板の対面に位置するカー
ボン板の部分を含み、前記絶縁樹脂製シートは、該整流
板の対面に位置するカーボン板の部分に圧着されてい
る、請求項１に記載のレドックスフロー電池の電池セル
用フレーム付き双極板。2. A liquid feed through which the electrolytic solution passes through the frame.
The groove and the liquid feeding groove that is continuous with the liquid feeding groove in plan view
And a rectifying plate that is located between the electrode and the a portion electrolyte contacts, and the electrodes are not in contact with portions of the carbon plate, the portion of the carbon plate positioned opposite of the rectifier plate The bipolar plate with a frame for a battery cell of a redox flow battery according to claim 1, wherein the insulating resin sheet is pressure-bonded to a portion of a carbon plate located opposite to the rectifying plate.
レドックスフロー電池であって、 隔膜を間に挟んで、両側に配置された１対のフレーム付
き双極板を備え、前記電極は、前記隔膜と前記１対のフレーム付き双極板
のうちの一方との間、および前記隔膜と前記１対のフレ
ーム付き双極板のうちの他方との間、にそれぞれ配置さ
れ、 前記フレーム付き双極板のそれぞれは、 フレームと、 その外周部が前記フレームに嵌め込まれる、プラスチッ
ク樹脂とカーボンから作製されたカーボン板と、 前記カーボン板の前記電解液が接触する部分であり、か
つ、前記電極と接しない部分に、額縁状に形成された絶
縁樹脂製シートと、を備え、 前記絶縁樹脂製シートは前記カーボン板の両面または片
面に設けられ、かつ該絶縁樹脂製シートの外周部は、前
記カーボン板の前記外周部とともに、前記フレームに嵌
め込まれている、レドックスフロー電池。3. A redox flow battery for charging and discharging by supplying an electrolytic solution to an electrode , comprising a pair of bipolar plates with a frame disposed on both sides with a diaphragm interposed therebetween, the electrode comprising: The diaphragm and the pair of bipolar plates with a frame
One of the diaphragms and the diaphragm and the pair of frames.
And the other of the bipolar plates with dome, respectively.
Is, each of the framed bipolar plate, and the frame, the outer periphery thereof is fitted into the frame, and the carbon plate made from plastic resin and carbon, are the portion where electrolyte contacts the carbon plate, And, in a portion not in contact with the electrode, a frame-shaped insulating resin sheet is provided, the insulating resin sheet is provided on both sides or one side of the carbon plate, and the outer periphery of the insulating resin sheet The portion is fitted in the frame together with the outer peripheral portion of the carbon plate, and the redox flow battery.
溝と、平面的に見て、その送液溝に連続してその送液溝
と前記電極との間に位置する整流板とを備え、前記カー
ボン板の前記電解液が接触する部分であり、かつ前記電
極が接しない部分は、前記整流板の対面に位置するカー
ボン板の部分を含み、前記絶縁樹脂製シートは、該整流
板の対面に位置するカーボン板の部分に圧着されてい
る、請求項３に記載のレドックスフロー電池。 4. A liquid feed through which the electrolytic solution passes through the frame.
The groove and the liquid feeding groove that is continuous with the liquid feeding groove in plan view
And a rectifying plate that is located between the electrode and the a portion electrolyte contacts, and the electrodes are not in contact with portions of the carbon plate, the portion of the carbon plate positioned opposite of the rectifier plate The redox flow battery according to claim 3, further comprising: a sheet of insulating resin, the sheet of insulating resin being pressure-bonded to a portion of the carbon plate located opposite to the rectifying plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18321499A JP3386410B2 (en) | 1999-06-29 | 1999-06-29 | Bipolar plate with frame for battery cell of redox flow battery and redox flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18321499A JP3386410B2 (en) | 1999-06-29 | 1999-06-29 | Bipolar plate with frame for battery cell of redox flow battery and redox flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001015144A JP2001015144A (en) | 2001-01-19 |
| JP3386410B2 true JP3386410B2 (en) | 2003-03-17 |
Family
ID=16131786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18321499A Expired - Fee Related JP3386410B2 (en) | 1999-06-29 | 1999-06-29 | Bipolar plate with frame for battery cell of redox flow battery and redox flow battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3386410B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014202320A1 (en) | 2013-06-20 | 2014-12-24 | Cellstrom Gmbh | Laminated bipolar plate |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002367658A (en) * | 2001-06-12 | 2002-12-20 | Sumitomo Electric Ind Ltd | Cell frame for redox flow cell, and redox flow cell |
| KR101371164B1 (en) | 2010-11-15 | 2014-03-17 | 세하특허 주식회사 | Manufacturing Method of Electrode for Redox Flow Battery and Redox Flow Battery thereof |
| KR101443680B1 (en) | 2012-02-09 | 2014-09-26 | 전자부품연구원 | Redox flow secondary cell |
| JP6184056B2 (en) | 2012-04-09 | 2017-08-23 | リケンテクノス株式会社 | Resin composition |
| EP3045497B1 (en) | 2013-09-10 | 2020-03-25 | Riken Technos Corporation | Electrically conductive resin composition, and film produced from same |
| JP6453026B2 (en) | 2014-10-09 | 2019-01-16 | リケンテクノス株式会社 | Method for producing thermoplastic resin composition film |
| JP7237710B2 (en) * | 2019-04-24 | 2023-03-13 | 株式会社Ｆｊコンポジット | Bipolar plate manufacturing method |
| WO2020218418A1 (en) * | 2019-04-24 | 2020-10-29 | 住友電気工業株式会社 | Bipolar plate, battery cell, cell stack and redox flow battery |
| JP2020181661A (en) * | 2019-04-24 | 2020-11-05 | 住友電気工業株式会社 | Bipolar plate, battery cell, cell stack, and redox flow cell |
-
1999
- 1999-06-29 JP JP18321499A patent/JP3386410B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014202320A1 (en) | 2013-06-20 | 2014-12-24 | Cellstrom Gmbh | Laminated bipolar plate |
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| Publication number | Publication date |
|---|---|
| JP2001015144A (en) | 2001-01-19 |
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