JPH02100273A - Manufacture of electrode plate of zinc-bromine cell - Google Patents
Manufacture of electrode plate of zinc-bromine cellInfo
- Publication number
- JPH02100273A JPH02100273A JP63253121A JP25312188A JPH02100273A JP H02100273 A JPH02100273 A JP H02100273A JP 63253121 A JP63253121 A JP 63253121A JP 25312188 A JP25312188 A JP 25312188A JP H02100273 A JPH02100273 A JP H02100273A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- manufacture
- pellets
- kneaded
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
- H01M12/085—Zinc-halogen cells or batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hybrid Cells (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
この発明は、亜鉛−臭素電池のカーボンプラスチック電
極板の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a method for manufacturing carbon plastic electrode plates for zinc-bromine batteries.
Ｂ１発明の概要
本発明は、亜鉛−臭素電池のカーボンプラスチック電極
板の製造工程において、
カーボンプラスチックの各種素材を加圧ニーダ装置に入
れ、約１０分から約６０分までの間の所要時間混練して
ベレットを製造し、これをもとに電極板を製造するよう
にすることにより、この加圧ニーダ装置の混練過程で導
電性が損失されるのを防止し、良好な電極板を製造でき
るようにしたものである。B1 Overview of the Invention The present invention, in the manufacturing process of carbon plastic electrode plates for zinc-bromine batteries, involves putting various carbon plastic materials into a pressure kneader and kneading them for a period of time from about 10 minutes to about 60 minutes. By manufacturing pellets and manufacturing electrode plates based on the pellets, it is possible to prevent conductivity from being lost during the kneading process of this pressurized kneader device, and to manufacture good electrode plates. This is what I did.
Ｃ１従来の技術
近時、電池電力貯蔵システムの開発が促進されており、
その−環として第２図に例示する如き電解液循環型金属
ハロゲン積層二次電池が開発されている。C1 Conventional technology Recently, the development of battery power storage systems has been promoted.
As a part of this, an electrolyte circulation type metal halogen stacked secondary battery as illustrated in FIG. 2 has been developed.
これは、第２図の構成原理図に示すように、電池本体ｌ
をイオン交換膜または多孔質膜からなるセパレータ２で
陽極室３と陰極室４とに区画し、この両極室にそれぞれ
電解液を循環させるための送液管５．６と返液管７．８
により接続された電解液タンク９．１０を設け、臭化亜
鉛（ＺｎＢｒｔ）の電解液をそれぞれの電極室に循環さ
れるようにしたものである。また、図で１１はカーボン
プラスチック製の陽極、１２はやはりカーボンプラスチ
ック製の陰極、１３．１４は共に送液ポンプである。As shown in the structural principle diagram in Fig. 2, this
is divided into an anode chamber 3 and a cathode chamber 4 by a separator 2 made of an ion exchange membrane or a porous membrane, and a liquid sending tube 5.6 and a liquid return tube 7.8 are used to circulate the electrolytic solution to both electrode chambers, respectively.
Electrolyte tanks 9 and 10 are connected to each other, and a zinc bromide (ZnBrt) electrolyte is circulated to each electrode chamber. Further, in the figure, 11 is an anode made of carbon plastic, 12 is a cathode also made of carbon plastic, and 13 and 14 are both liquid feeding pumps.
しかして、充電時には、電解液が図の矢印の方向に循環
し、陰極１２ではＺｎ” ” ＋ ２ｅ−−＊Ｚｎ。Thus, during charging, the electrolyte circulates in the direction of the arrow in the figure, and at the cathode 12, Zn"" + 2e--*Zn.
陽極１１では２Ｂｒ−→Ｂｒ”＋２ｅの反応を生じ、陽
極１１で生成された臭素は分子となり、電解液中に混じ
り、一部溶解し、大部分は陽極液中の錯化剤によって錯
化物となり、陽極室側の電解液タンク１０内に沈澱して
蓄積される。又、放電時には、電解液が循環した状態で
各電極１１．１２ではそれぞれ前記反応式と逆の反応を
生じ、析出物（Ｚｎ、Ｂｒｔ）が各電極１１．１２上で
消費（酸化、還元）され、電気エネルギーが放出される
ようにしたものである。At the anode 11, a reaction of 2Br-→Br''+2e occurs, and the bromine generated at the anode 11 becomes molecules, mixes in the electrolyte, partially dissolves, and mostly becomes a complex due to the complexing agent in the anolyte. , is precipitated and accumulated in the electrolyte tank 10 on the anode chamber side.In addition, during discharge, while the electrolyte is circulating, a reaction opposite to the above reaction formula occurs at each electrode 11, 12, and the precipitate ( Zn, Brt) is consumed (oxidized, reduced) on each electrode 11, 12, and electrical energy is released.
また、上述のような亜鉛−臭素電池では、その電極１１
．１２は、電解液におかされることなく、かつ導電性が
良く、電気的抵抗が小さいものであることが必要である
。このため、従来よりこれらの電極’１１．１２は、次
のように構成していた。すなわち、ポリエチレン（５０
ｗｔ％）、カーボンブラック（１５ｗｔ％）及びグラフ
ァイト（３５ｗｔ％）の素材を、まず、一般に用いられ
ている加圧ニーダで、１５０℃の温度で混練し、この混
合素材を、約直径３１ｍ、高さ３＋ａｍの円柱状ペレッ
トに形成する。In addition, in the zinc-bromine battery as described above, the electrode 11
．． 12 must not be exposed to the electrolytic solution, have good conductivity, and have low electrical resistance. For this reason, these electrodes '11 and 12 have conventionally been constructed as follows. That is, polyethylene (50
First, materials of carbon black (15 wt%), graphite (35 wt%) were kneaded at a temperature of 150°C in a commonly used pressure kneader, and this mixed material was mixed into a mold with a diameter of approximately 31 m and a high height. Form into cylindrical pellets with a diameter of 3+am.
次に、これらペレットを、ヒートプレスして薄板状のカ
ーボンプラスチック電極を構成していた。Next, these pellets were heat pressed to form thin plate-like carbon plastic electrodes.
Ｄ９発明が解決しようとする課題
上述のような手段で構成する従来のカーボンプラスチッ
ク電極は、その製造に当たり、素材であるポリエチレン
、カーボンブラック及びグラファイトを平均的に混合す
るため、加圧ニーダで長時間混練していたが、このよう
に長時間混練すると本来あるべき構造が破壊され、カー
ボンプラスチック電極に構成したとき、その電気的抵抗
が増大してしまうという問題があった。D9 Problems to be Solved by the Invention Conventional carbon plastic electrodes constructed using the above-mentioned method require a long time in a pressure kneader in order to evenly mix the raw materials polyethylene, carbon black, and graphite. However, there was a problem in that kneading for such a long time destroys the original structure and increases the electrical resistance when formed into a carbon plastic electrode.
本発明は上述の点に鑑み、カーボンプラスチック電極の
素材を加圧ニーダで適度に混練し、電気的抵抗の小さな
電極を製造する方法を提供することを目的とする。In view of the above-mentioned points, an object of the present invention is to provide a method for appropriately kneading a material for a carbon plastic electrode using a pressure kneader and manufacturing an electrode with low electrical resistance.
８６課題を解決するための手段
本発明の亜鉛−臭素電池の電極板製造方法は、カーボン
プラスチックを製造するための加圧ニーダ装置で、カー
ボンプラスチックの素材混合物を、約１０分以上で、約
６０分以内の所要時間混練してペレットを製造し、これ
を用いて電極板を製造することを特徴とする。86 Means for Solving the Problems The method for manufacturing an electrode plate for a zinc-bromine battery of the present invention uses a pressure kneader device for manufacturing carbon plastic to heat a carbon plastic material mixture for about 60 minutes or more. The method is characterized in that pellets are produced by kneading for a time of less than 1 minute, and the pellets are used to produce electrode plates.
Ｆ１作用
上述のような製造方法によることにより、加圧ニーダ装
置による素材混練過程で、カーボンプラスチックの導電
性が損失しないようにするという作用を奏する。F1 Effect: By using the manufacturing method as described above, there is an effect that the conductivity of the carbon plastic is prevented from being lost during the material kneading process using the pressure kneader device.
Ｇ、実施例
以下、本発明の亜鉛−臭素電池の電極板製造方法の一実
施例を、第１図によって説明する。G. Example Hereinafter, an example of the method for manufacturing an electrode plate for a zinc-bromine battery according to the present invention will be described with reference to FIG.
本実施例の製造方法は、カーボンプラスチック製のバイ
ポーラ電極板の製造工程の一部である、ベレット製造の
ために加圧ニーダ装置で素材を混練する工程における、
加圧ニーダ混練時間の最適条件を求めるものである。The manufacturing method of this example is a part of the manufacturing process of a bipolar electrode plate made of carbon plastic, in which materials are kneaded using a pressure kneader device to manufacture pellets.
The purpose is to find the optimum conditions for the pressure kneader kneading time.
このため、一般に用いられている加圧ニーダ装Ｗ１（森
山製作所製で混練樹脂の処理荷重２５ｋｇのもの）に、
材料組成比で、ポリエチレン５０ｗｔ％、カーボンブラ
ックｔｓｗｔ％、グラファイト３５ｗｔ％の材料を入れ
、温度１５０℃で混練する条件の下に、その混練時間を
変化させて、各時間ごとのサンプルのベレットを製造す
る。そして、各混練時間におけるペレットを、それぞれ
ヒートプレスして薄板状のカーボンプラスチック電極を
成形し、各々の表面の比抵抗を測定し、その結果を第１
図に示した。For this reason, the commonly used pressure kneader W1 (manufactured by Moriyama Seisakusho, with a processing load of 25 kg for kneaded resin),
Materials with a material composition ratio of 50 wt% polyethylene, TSwt% carbon black, and 35 wt% graphite were added and kneaded at a temperature of 150°C, and the kneading time was varied to produce sample pellets for each time. do. Then, the pellets at each kneading time were heat-pressed to form thin carbon plastic electrodes, the specific resistance of each surface was measured, and the results were used for the first
Shown in the figure.
この線図より、加圧ニーダ装置での混練時間を多くとる
ほど、カーボンプラスチック電極の比抵抗が増加するの
で、この混練時間は、約６０分以内にしなけばならない
ことが判明した。From this diagram, it was found that the longer the kneading time in the pressure kneader, the more the specific resistance of the carbon plastic electrode, so the kneading time should be within about 60 minutes.
また、混練時間が約１０分以内では、各材料が良く混練
されておらず、カーボンプラスデック電極としての機能
を果たし得ない不安定なものとなってしまうことが判明
した。Furthermore, it has been found that if the kneading time is less than about 10 minutes, each material is not well kneaded, resulting in an unstable product that cannot function as a carbon plus deck electrode.
また、第１図の線図より、好ましくは、加圧ニーダ装置
による混練時間を約１５分〜２５分の間であると思われ
る。Furthermore, from the diagram in FIG. 1, it appears that the kneading time using the pressure kneader is preferably between about 15 and 25 minutes.
Ｈ１発明の効果
以上詳述したように本発明の亜鉛−臭素電池の電極板製
造方法によれば、カーボンプラスチック電極製造の際、
その素材を加圧ニーダ装置に入れ、約１０分以上、約６
０分以内の所要時間混練してペレットを製造し、このベ
レットをヒートプレスして電極板を成形するので、加圧
ニーダ装置による混練過程で、カーボンプラスチックの
導電性が摘果することを防止でき、良好な機能をもつ電
極板を提供できるという効果がある。H1 Effects of the Invention As detailed above, according to the method for manufacturing an electrode plate for a zinc-bromine battery of the present invention, when manufacturing a carbon plastic electrode,
Put the material into a pressure kneader device and press it for about 10 minutes or more, about 6 minutes.
The pellets are produced by kneading for a time of less than 0 minutes, and the pellets are heat-pressed to form electrode plates, so that the conductivity of the carbon plastic can be prevented from being thinned during the kneading process using a pressure kneader device. This has the effect of providing an electrode plate with good functionality.
第１図は本発明の亜鉛−臭素電池の電極板製造方法の一
実施例を説明するための説明線図、第２図は従来の亜鉛
−臭素電池の原理を示す概略構成説明線図である。
１１・・・陽極、１２陰極、
第１図
説明線図
Ｍｉｘｅｄ Ｔｉｍｅ （Ｍｉｎ）FIG. 1 is an explanatory diagram for explaining one embodiment of the method for manufacturing an electrode plate for a zinc-bromine battery according to the present invention, and FIG. 2 is an explanatory diagram for schematically explaining the principle of a conventional zinc-bromine battery. . 11... Anode, 12 Cathode, Figure 1 explanatory diagram Mixed Time (Min)
Claims (1)
ダ装置に入れ、約１０分以上で、約６０分以内の所要時
間混練して、ペレットを製造し、これを用いて電極板を
成形することを特徴とする亜鉛−臭素電池の電極板製造
方法。(1) Put the carbon plastic material mixture into a pressure kneader and knead it for about 10 minutes or more, but not more than about 60 minutes, to produce pellets, and use this to mold an electrode plate. A method for producing an electrode plate for a zinc-bromine battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63253121A JPH02100273A (en) | 1988-10-07 | 1988-10-07 | Manufacture of electrode plate of zinc-bromine cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63253121A JPH02100273A (en) | 1988-10-07 | 1988-10-07 | Manufacture of electrode plate of zinc-bromine cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02100273A true JPH02100273A (en) | 1990-04-12 |
Family
ID=17246791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63253121A Pending JPH02100273A (en) | 1988-10-07 | 1988-10-07 | Manufacture of electrode plate of zinc-bromine cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02100273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010158544A (en) * | 2010-03-15 | 2010-07-22 | Panasonic Corp | Puncturing needle cartridge |
| JP2010172709A (en) * | 2010-03-15 | 2010-08-12 | Panasonic Corp | Puncturing needle cartridge |
-
1988
- 1988-10-07 JP JP63253121A patent/JPH02100273A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010158544A (en) * | 2010-03-15 | 2010-07-22 | Panasonic Corp | Puncturing needle cartridge |
| JP2010172709A (en) * | 2010-03-15 | 2010-08-12 | Panasonic Corp | Puncturing needle cartridge |
| JP4585041B2 (en) * | 2010-03-15 | 2010-11-24 | パナソニック株式会社 | Puncture needle cartridge |
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