JPS61131377A - Method of judging life of zinc-boromine cell - Google Patents
Method of judging life of zinc-boromine cellInfo
- Publication number
- JPS61131377A JPS61131377A JP59250387A JP25038784A JPS61131377A JP S61131377 A JPS61131377 A JP S61131377A JP 59250387 A JP59250387 A JP 59250387A JP 25038784 A JP25038784 A JP 25038784A JP S61131377 A JPS61131377 A JP S61131377A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic solution
- discharging
- charging
- negative electrode
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
-
- 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電解液循環型積層二次電池である亜鉛／臭素
電池の充放電深度から電池の寿命を判定する方法に関す
るものでらる＠
〔従来の技術〕
亜鉛／臭素電池は、電解液循環型積層二次電池に属する
もので、第２図に示すような基本的構成をなしている。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for determining the battery life from the depth of charge and discharge of a zinc/bromine battery, which is an electrolyte circulation type stacked secondary battery. [Prior Art] A zinc/bromine battery belongs to the electrolyte circulation type stacked secondary battery, and has a basic configuration as shown in FIG. 2.
図中の符号（１）は電池の１ユニツトを構成する単セル
、（２）は陽極室、（３）は陰極室、（４）は隔膜（セ
パレータ）で、前記陽極室（２）と陰極室（３）を区画
する。（５）は陽極、（６）は陰極、（９）は陽極電解
液貯蔵槽、αＱは陰極電解液貯蔵槽、（１１）Ｃ１５は
ポンプである。しかして、充電時はポンプ（１１） ａ
’ａを作動させて、電解液が矢印の方向に循環し陰極（
６）ではＺｎ″＋２６−＋ｚＨ，陽極（５）では２Ｂｒ
″″→Ｂｒ２ ＋ ２ｅの反応を生じ、陽極（５）で生
成され比臭素は分子となって電解液中に混じシ一部は溶
解し、大部分は陽極電解液中の錯化剤によって錯化物と
なり、陽極電解液貯蔵槽（９）内に沈殿して蓄積される
。又、放電時は電解液が矢印の方向に循環し良状態で各
電極（６） （５）では上記反応式と逆の反応を生じ、
析出物（Ｚｎ ＊ Ｂｒｚ ）が各電極（６） （５）
上で消費（酸化、還元）され、電気エネルギーが放出さ
れる。The code (1) in the figure is a single cell constituting one unit of the battery, (2) is an anode chamber, (3) is a cathode chamber, and (4) is a diaphragm (separator). Divide the room (3). (5) is an anode, (6) is a cathode, (9) is an anode electrolyte storage tank, αQ is a cathode electrolyte storage tank, and (11) C15 is a pump. However, when charging, the pump (11) a
'a is activated, the electrolyte circulates in the direction of the arrow and the cathode (
6), Zn″+26−+zH, and anode (5), 2Br.
The reaction ``'' → Br2 + 2e occurs, and the specific bromine produced at the anode (5) becomes molecules and is mixed in the electrolyte, a portion of which is dissolved, and the majority of which is complexed by the complexing agent in the anode electrolyte. The anolyte is precipitated and accumulated in the anolyte storage tank (9). Also, during discharge, the electrolyte circulates in the direction of the arrow, and under good conditions, a reaction opposite to the above reaction formula occurs at each electrode (6) (5).
Precipitates (Zn*Brz) are deposited on each electrode (6) (5)
It is consumed (oxidized, reduced) and electrical energy is released.
以上の構成になる亜鉛／臭素電池は、その特徴として高
エネルギー密度、高エネルギー効率、安価が挙げられる
。しかしながら、電池の充放電の深度については未だ測
定する方法が確立されておらず、従って計器類も特定さ
れていないのが現状である。The characteristics of the zinc/bromine battery having the above structure include high energy density, high energy efficiency, and low cost. However, at present, no method has been established to measure the depth of charging and discharging of batteries, and therefore no instruments have been specified.
ところで、最近この亜鉛／臭素電池を電気自動車のエネ
ルギー源として利用する途が開かれた。By the way, recently the use of zinc/bromine batteries as an energy source for electric vehicles has opened up.
この場合問題となるのは、発走時もしくは走行中に電池
が保有する残シの放電時間（走行可能距離）を知ること
が重要となってくる。In this case, it is important to know the remaining discharge time (distance that can be traveled) of the battery at the time of starting or while the vehicle is running.
また、これまで電解液の充放電中の一値が測定されたこ
とはあったが、充放電深度の目安となり得るものではな
かった・それは、陰極側電解液間の液移動及び電鱗液組
成が原因となっていたからである。In addition, although one value of the electrolyte during charging and discharging has been measured so far, it could not be used as a guideline for the depth of charging and discharging. This is because it was the cause.
本発明は、上記の問題を解決するためになされたもので
あシ、−値測定には通常のガラス電極を用い、陰極側電
解液貯蔵槽内に設置する。測定のための条件として
■ 充放電中の電解液の温度を略一定にする。The present invention has been made in order to solve the above-mentioned problems, and a normal glass electrode is used for measuring the -value and is installed in the electrolyte storage tank on the cathode side. Conditions for measurement: ■ Keep the temperature of the electrolytic solution approximately constant during charging and discharging.
■ 充放電中陰極側電解液と陽極側電解液の隔膜に作用
する夫々の圧力を同一として隔膜を通しての液移動を遮
断する。■ During charging and discharging, the pressures acting on the diaphragms of the cathode electrolyte and the anode electrolyte are made the same to block liquid movement through the diaphragm.
■ 陰極電解液中に支持電解質としてＮＨ４Ｃｌを２〜
４ ｍｏｌ／を添加する・
以上説明した方法を電池の充放電中に、必要に応じて行
なうことが本発明の亜鉛／臭素電池の寿命判定方法の要
旨である。■ Add NH4Cl to the catholyte as a supporting electrolyte.
The gist of the method for determining the lifespan of a zinc/bromine battery of the present invention is to perform the method described above as necessary during charging and discharging of the battery.
電解液の温度を略一定に保持することの必要な理由は、
温度の変動により−値が変化してしまうからである。The reason why it is necessary to maintain the temperature of the electrolyte almost constant is as follows.
This is because the negative value changes due to temperature fluctuations.
本発明の方法によれば、亜鉛／臭素電池の充放電中を通
して陰極電解液の一値を測定することにより、電池の充
電、放電の深度を判定し得るという利点がある。According to the method of the present invention, there is an advantage that the depth of charging and discharging of the battery can be determined by measuring one value of the catholyte throughout the charging and discharging of the zinc/bromine battery.
次に、本発明の実施例を示す。 Next, examples of the present invention will be shown.
（１）使用電池： １６セル直列積層、４並列積層、カ
ーボンプラスチック電極使用 Ｉ ｋＷ級亜鉛／臭臭電
池
００電解液組成： ３ ｍｏｂ／Ｌ Ｚｎ Ｂｒ！＋
４ ｍｏｔ／１ＮＨ４ＣＬ ＋１ ｍｏｔ／を臭素錯
化剤
（１）充電深度二０〜５０％
（ｆｆ）電流密度： １３．４ ｍＡ／ｃｎ（Ｖ）充
電定電カニ１．２５ｋＷ８時間、放電： １ｋＷ８時間
（Ｖｌ）使用−メータ：ＫＣＡ無補充完全１本形電極及
び−指示調節計（温度補償付）
上記の条件によυ７サイクル測定した結果、いずれも陰
極電解液の−は充電中直線的に上昇し、放電中は速かに
＋７ ニアに減少した。データ数７の一値は次の通シで
あつ念。(1) Battery used: 16 cells stacked in series, 4 cells stacked in parallel, carbon plastic electrode used I kW class zinc/odor battery 00 Electrolyte composition: 3 mob/L Zn Br! +
4 mot/1NH4CL +1 mot/bromine complexing agent (1) Depth of charge 20-50% (ff) Current density: 13.4 mA/cn (V) Charging constant voltage crab 1.25 kW 8 hours, discharging: 1 kW 8 hours (Vl) Used - Meter: KCA non-refillable complete single electrode and - indicating controller (with temperature compensation) As a result of υ7 cycles of measurement under the above conditions, - of the catholyte increases linearly during charging. However, during discharge, it quickly decreased to +7 near. The value of data number 7 is explained in the following passage.
充電初期 １．９８±０．０５ｐＨ（２０〜２８℃）充
電末期 ５．１１±（］、１７ｐＨ（２０〜３２℃）放
電末期 １゜８８±０．０８ｐＨ（２２〜２９℃）これ
の代表的な例を第１図に示す。この第１図から明らかな
ように、上記の条件下における−の変化は充放電状態と
対応していることがわかる。尚、−値測定は陰極側電解
液であれば、どこで測定してもかまわない。Initial stage of charging 1.98±0.05pH (20~28℃) Final stage of charging 5.11±(], 17pH (20~32℃) Final stage of discharge 1°88±0.08pH (22~29℃) Typical of this An example of this is shown in Figure 1.As is clear from Figure 1, the change in - under the above conditions corresponds to the charging/discharging state. If so, it doesn't matter where you measure.
本発明の方法によれば、一定条件の下で亜鉛／臭素電池
を運転する場合の、充放電深度を判定することができる
ので、特にその必要のある電気自動車用として適用可能
なばかシでなく、他の用途においても利用することがで
きる。According to the method of the present invention, it is possible to determine the depth of charge and discharge when operating a zinc/bromine battery under certain conditions, so it is not a foolproof method that can be applied particularly to electric vehicles that require this. , it can also be used for other purposes.
第１図は亜鉛／臭素電池の充放電時に本発明の方法を適
用した場合の電解液温度と電解液声値の関係を示すグラ
フであり、第２図は亜鉛／臭素電池の基本的構成を示す
断面図である。
図中の符号（１）は単セル、（２）は陽極室、（３）は
陰極室、（４）は隔膜（セパレータ）、（５）は陽極、
（６）は陰極、（９）は陽極電解液貯蔵槽、α１は陰極
電解液貯蔵槽、α１）（１７Ｊはボ／プである。Figure 1 is a graph showing the relationship between electrolyte temperature and electrolyte value when the method of the present invention is applied during charging and discharging of a zinc/bromine battery, and Figure 2 shows the basic configuration of a zinc/bromine battery. FIG. In the figure, code (1) is a single cell, (2) is an anode chamber, (3) is a cathode chamber, (4) is a diaphragm (separator), (5) is an anode,
(6) is a cathode, (9) is an anode electrolyte storage tank, α1 is a cathode electrolyte storage tank, and α1) (17J is a bo/p).
Claims (1)
ｐＨ値から電池の充放電深度を判定することを特徴とす
る亜鉛／臭素電池の寿命判定方法。A method for determining the lifespan of a zinc/bromine battery, which comprises measuring the pH of an electrolytic solution while maintaining a substantially constant temperature, and determining the depth of charge and discharge of the battery from the pH value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59250387A JPS61131377A (en) | 1984-11-29 | 1984-11-29 | Method of judging life of zinc-boromine cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59250387A JPS61131377A (en) | 1984-11-29 | 1984-11-29 | Method of judging life of zinc-boromine cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61131377A true JPS61131377A (en) | 1986-06-19 |
| JPH0461469B2 JPH0461469B2 (en) | 1992-09-30 |
Family
ID=17207159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59250387A Granted JPS61131377A (en) | 1984-11-29 | 1984-11-29 | Method of judging life of zinc-boromine cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61131377A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007269291A (en) * | 2006-03-31 | 2007-10-18 | Daihatsu Motor Co Ltd | Vehicle body rear part structure for automobile |
| JP2008037269A (en) * | 2006-08-07 | 2008-02-21 | Toyota Motor Corp | Car body panel junction part structure |
| WO2018016531A1 (en) * | 2016-07-21 | 2018-01-25 | 日立化成株式会社 | Secondary cell system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717572A (en) * | 1980-05-27 | 1982-01-29 | Energy Dev Ass | Storage battery facility system and method of stopping current |
-
1984
- 1984-11-29 JP JP59250387A patent/JPS61131377A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717572A (en) * | 1980-05-27 | 1982-01-29 | Energy Dev Ass | Storage battery facility system and method of stopping current |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007269291A (en) * | 2006-03-31 | 2007-10-18 | Daihatsu Motor Co Ltd | Vehicle body rear part structure for automobile |
| JP2008037269A (en) * | 2006-08-07 | 2008-02-21 | Toyota Motor Corp | Car body panel junction part structure |
| WO2018016531A1 (en) * | 2016-07-21 | 2018-01-25 | 日立化成株式会社 | Secondary cell system |
| JPWO2018016531A1 (en) * | 2016-07-21 | 2019-01-31 | 日立化成株式会社 | Secondary battery system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0461469B2 (en) | 1992-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |