JPH0620726A - Measuring method for charging depth of zinc-bromine battery - Google Patents
Measuring method for charging depth of zinc-bromine batteryInfo
- Publication number
- JPH0620726A JPH0620726A JP4172631A JP17263192A JPH0620726A JP H0620726 A JPH0620726 A JP H0620726A JP 4172631 A JP4172631 A JP 4172631A JP 17263192 A JP17263192 A JP 17263192A JP H0620726 A JPH0620726 A JP H0620726A
- Authority
- JP
- Japan
- Prior art keywords
- bromine
- battery
- positive electrode
- zinc
- charging
- 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
- ZRXYMHTYEQQBLN-UHFFFAOYSA-N [Br].[Zn] Chemical compound [Br].[Zn] ZRXYMHTYEQQBLN-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 11
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 34
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 11
- 239000008139 complexing agent Substances 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 29
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000011701 zinc Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- KHJQQUGSPDBDRM-UHFFFAOYSA-M 1-ethyl-1-methylpyrrolidin-1-ium;bromide Chemical compound [Br-].CC[N+]1(C)CCCC1 KHJQQUGSPDBDRM-UHFFFAOYSA-M 0.000 description 1
- ACQZVWGQFXXTIX-UHFFFAOYSA-M 4-ethyl-4-methylmorpholin-4-ium;bromide Chemical compound [Br-].CC[N+]1(C)CCOCC1 ACQZVWGQFXXTIX-UHFFFAOYSA-M 0.000 description 1
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical class C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 1
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical class C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
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
- Y02E60/10—Energy storage using batteries
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
- Hybrid Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は亜鉛−臭素電池の充電深
度を測定する方法に関するものである。FIELD OF THE INVENTION The present invention relates to a method for measuring the depth of charge of a zinc-bromine battery.
【０００２】[0002]
【従来の技術】亜鉛−臭素電池は、正極活物質に臭素、
負極活物質に亜鉛を用いた２次電池であり、電力需要の
昼と夜のアンバランスを解消させるために夜間の余剰電
力を電池に貯蔵し、需要の多い昼間に放出するピークカ
ット用の電池である。現在は電力貯蔵用として大容量の
電池が開発されている。2. Description of the Related Art A zinc-bromine battery is a positive electrode active material containing bromine,
It is a secondary battery that uses zinc as the negative electrode active material. It is a battery for peak cut that stores surplus power at night in the battery to eliminate unbalanced power demand between day and night, and discharges it during daytime when demand is high. Is. Currently, a large capacity battery is being developed for power storage.
【０００３】この亜鉛−臭素電池の化学反応は、The chemical reaction of this zinc-bromine battery is
【０００４】[0004]
【化１】充電時……正極：２Ｂｒ-→Ｂｒ2＋２ｅ-，負
極：Ｚｎ++＋２ｅ-→Ｚｎ 放電時……正極：２Ｂｒ-←Ｂｒ2＋２ｅ-，負極：Ｚｎ
++＋２ｅ-←Ｚｎ で表される。[Chemical Formula 1] During charging: positive electrode: 2Br − → Br 2 + 2e − , negative electrode: Zn ++ + 2e − → Zn During discharging: positive electrode: 2Br − ← Br 2 + 2e − , negative electrode: Zn
It is represented by ++ + 2e − ← Zn.
【０００５】電解液は電池本体と別置きにした正極側の
タンクから充放電時にポンプで循環される。そして正極
で発生した臭素は電解液に添加した臭素錯化剤（四級ア
ミン）と反応して、オイル状の沈澱物となってタンクへ
戻され、放電時はポンプでセル内へ送り込まれて還元さ
れる。電解液の成分は、３ｍｏｌ／ｌのＺｎＢｒ2に液
の抵抗を下げるために約２ｍｏｌ／ｌのＮＨ4Ｃｌ等の
塩を添加し、更に負極亜鉛のデンドライトを防止して均
一な電着を促進させる為のＰｂ、Ｓｎ、四級アンモニウ
ム塩類、１ｍｏｌ／ｌの臭素錯化剤を添加してある。正
極と負極の間にはセパレータを用い、正極で発生した臭
素が負極へ拡散して亜鉛が自己放電することを抑制して
いる。The electrolyte solution is circulated by a pump at the time of charging / discharging from a positive electrode side tank separately provided from the battery body. Then, the bromine generated at the positive electrode reacts with the bromine complexing agent (quaternary amine) added to the electrolytic solution to form an oil-like precipitate that is returned to the tank and pumped into the cell during discharge. Be reduced. The electrolyte is composed of 3 mol / l ZnBr 2 with about 2 mol / l salt such as NH 4 Cl in order to reduce the resistance of the solution, and further prevents the negative electrode zinc dendrite to promote uniform electrodeposition. To this end, Pb, Sn, quaternary ammonium salts, and 1 mol / l of a bromine complexing agent are added. A separator is used between the positive electrode and the negative electrode to prevent bromine generated in the positive electrode from diffusing into the negative electrode and causing self-discharge of zinc.
【０００６】一般にこのような亜鉛−臭素電池への充電
電力量は、充電装置に設けた電力量計の目盛により確認
している。この充電電力量とは、電流と電圧の各平均値
に充電時間を乗じることによって求められる。Generally, the amount of electric power charged to such a zinc-bromine battery is confirmed by the scale of an electric power meter provided in the charging device. The charging electric energy is obtained by multiplying each average value of current and voltage by the charging time.
【０００７】又、亜鉛−臭素電池の放電時における電池
の残存容量は、上記充電電力量に電池の効率を乗じて、
これから放電装置の電力量計の目盛を差し引いた残りの
電力量として求められる。他方で前記電解液の電導度が
充電深度によって変化することを利用して、電解液の電
導度を測定することによって充電深度を求める方法も知
られている。Further, the remaining capacity of the zinc-bromine battery at the time of discharging is calculated by multiplying the charging electric energy by the efficiency of the battery,
From this, the scale of the watt-hour meter of the discharge device is subtracted to obtain the remaining amount of power. On the other hand, there is also known a method of obtaining the charging depth by measuring the conductivity of the electrolytic solution by utilizing the fact that the conductivity of the electrolytic solution changes depending on the charging depth.
【０００８】[0008]
【発明が解決しようとする課題】しかしながらこのよう
な充放電装置の電力量計に依存した充電電力量と放電電
力量の確認手段では、亜鉛−臭素電池の充電深度を簡単
にチェックする方法がないため、放電時における電池の
残存容量とか充電時における充電完了までの時間を簡便
に求めることが出来ないという課題があった。However, there is no simple method for checking the depth of charge of a zinc-bromine battery in the means for confirming the amount of charging power and the amount of discharging power that depend on the watt-hour meter of the charging / discharging device. Therefore, there is a problem that the remaining capacity of the battery at the time of discharging and the time until the completion of charging at the time of charging cannot be easily obtained.
【０００９】例えば充電時の充電電力量とか放電時の残
存容量は、前記したように充放電装置に付設された電力
量計の目盛を基準として演算により求めているため、操
作及び演算が煩瑣であり、特に電池が不規則な充放電運
転パターンに基づいて使用されている場合には、演算に
よって残存容量と充電電力量を求めることは困難であ
る。更に亜鉛−臭素電池が自己放電量が多くなるような
運転パターンに基づいて使用されている場合には、この
自己放電量が充放電装置の電力量計にカウントされない
ため、正確な充電電力量と残存容量を確認することがで
きない。[0009] For example, the charging power amount during charging and the remaining capacity during discharging are calculated by using the scale of the watt hour meter attached to the charging / discharging device as a reference as described above, and therefore the operation and the calculation are complicated. However, particularly when the battery is used based on an irregular charging / discharging operation pattern, it is difficult to calculate the remaining capacity and the charging power amount by calculation. Furthermore, when the zinc-bromine battery is used based on an operation pattern in which the self-discharge amount increases, this self-discharge amount is not counted by the watt-hour meter of the charging / discharging device, and therefore the accurate charging power amount and The remaining capacity cannot be confirmed.
【００１０】従って亜鉛−臭素電池の充電深度を簡単に
チェックする方法がないため、電池が消耗した際の充電
時にあとどのくらい充電すれば満充電（Full Charge）
になるかが推測出来ず、そのまま充電を継続することに
よって過充電（Over Charge）になってしまい、電池の
性能や寿命に多大な悪影響を及ぼす惧れがある。Therefore, since there is no simple method for checking the depth of charge of a zinc-bromine battery, it is necessary to fully charge the battery when the battery is exhausted.
There is a possibility that it will be overcharged by continuing to charge as it is, and it will have a great adverse effect on the performance and life of the battery.
【００１１】又、放電時においても電池の残存容量が不
明な場合には、あとどのくらいで放電が終了するのかわ
からず、従って電池をポータブル機器用の電源として使
用した際の機器の使用可能時間を推定することができず
に作業上での支障が生じてしまうという難点がある。Further, when the remaining capacity of the battery is unknown at the time of discharging, it is not known how long the discharging will end, and therefore, the usable time of the device when the battery is used as the power source for the portable device is determined. However, there is a problem that the work cannot be estimated and a problem occurs in the work.
【００１２】前記電力量計から求めた充電深度には、自
己放電分の誤差が必ず含まれており、且つ電位が高い電
池の場合には、充電電力量の測定時に絶縁対策に留意す
る必要がある。更に電解液の電導度と充電深度との関係
を利用して、電導度計から得られる値から充電深度を求
める場合には、電解液の温度に対する補正という煩瑣な
操作が必要である。The depth of charge obtained from the watt-hour meter always includes an error for self-discharge, and in the case of a battery having a high potential, it is necessary to pay attention to insulation measures when measuring the amount of charge power. is there. Further, when the charge depth is obtained from the value obtained from the conductivity meter by utilizing the relationship between the conductivity of the electrolytic solution and the charge depth, a complicated operation of correcting the temperature of the electrolytic solution is required.
【００１３】本発明は上記の点に鑑みてなされたもので
あり、上記した煩瑣な操作を必要とせずに亜鉛−臭素電
池の充電深度を容易に測定可能な方法を提供することを
目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to provide a method capable of easily measuring the depth of charge of a zinc-bromine battery without requiring the above-mentioned complicated operation. It is a thing.
【００１４】[0014]
【課題を解決するための手段】本発明は上記目的を達成
するために、充放電時に電池本体と別置きにした正極側
タンクから正極室に電解液がポンプで循環され、充電時
に正極で発生した臭素が電解液に添加した臭素錯化剤と
反応して正極側タンクへ戻されるとともに、放電時は該
電解液がポンプで電池本体内へ送り込まれて還元される
ようにした亜鉛−臭素電池において、光量と色を判別す
る光学的センサを用いて正極側タンク内の電解液の光量
と色の判別を行うことにより、充電の進行に伴って正極
側タンクに貯留される臭素錯化物の電解液に対する割合
を判定し、この判定結果から電池の充電深度を求めるよ
うにした亜鉛−臭素電池の充電深度の測定方法を提供す
る。In order to achieve the above-mentioned object, the present invention circulates an electrolytic solution by a pump from a positive electrode side tank, which is placed separately from a battery main body, into a positive electrode chamber at the time of charging / discharging, and at the positive electrode at the time of charging Zinc-bromine battery in which the bromine formed reacts with the bromine complexing agent added to the electrolytic solution and is returned to the positive electrode side tank, and at the time of discharge, the electrolytic solution is pumped into the battery main body and reduced. In the above, by determining the light quantity and color of the electrolyte solution in the positive electrode side tank by using an optical sensor that distinguishes the light quantity and color, the electrolysis of the bromine complex compound stored in the positive electrode side tank as the charging progresses. Provided is a method for measuring the depth of charge of a zinc-bromine battery, in which the ratio to the liquid is determined, and the depth of charge of the battery is determined from this determination result.
【００１５】[0015]
【作用】亜鉛−臭素電池では、充電の進行に伴って正極
タンク内に電解液に添加した錯化剤による臭素錯化物が
貯留されるが、この臭素錯化物は特定の色を有している
とともに光を殆ど通さない反面、電解液は少量の光を通
すので、光量及び色を判別する光学的センサによって電
解液を通過する光量と色の判別を行うことにより、電解
液中に生じた臭素錯化物の割合が推測可能となる。In a zinc-bromine battery, a bromine complex compound by a complexing agent added to the electrolytic solution is stored in the positive electrode tank as the charging progresses, and the bromine complex compound has a specific color. While the electrolyte hardly allows light to pass through, a small amount of light passes through the electrolyte, so the amount of light passing through the electrolyte and the color can be determined by an optical sensor that determines the amount of light and color. It is possible to estimate the ratio of complex compounds.
【００１６】そして予め実験的に検証した充電深度
（％）と臭素錯化物の電解液に対する割合（％）との相
関グラフから、亜鉛−臭素電池の充電深度を容易に求め
ることが出来る。The charge depth of the zinc-bromine battery can be easily obtained from the correlation graph of the charge depth (%) which has been experimentally verified in advance and the ratio (%) of the bromine complex compound to the electrolytic solution.
【００１７】[0017]
【実施例】以下に本発明にかかる亜鉛−臭素電池の充電
深度の測定方法の具体的な実施例を説明する。本実施例
では、亜鉛−臭素電池の充電深度を知る方法として、正
極側タンクの臭素錯化物（臭素コンプレックス）の量を
測定することが大きな特徴となっている。そのため電解
液には、ＺｎＢｒ2にＮＨ4Ｃｌ等の塩を添加し、更に負
極亜鉛のデンドライトを防止して均一な電着を促進させ
る為のＰｂ、Ｓｎ、四級アンモニウム塩類の外に、メチ
ル基，エチル基を持つモルホリニウム塩又はピロリジニ
ウム塩の臭素錯化剤が添加されている。EXAMPLES Specific examples of the method for measuring the charge depth of a zinc-bromine battery according to the present invention will be described below. In this example, as a method of knowing the charge depth of a zinc-bromine battery, it is a major feature to measure the amount of bromine complex compound (bromine complex) in the positive electrode side tank. Therefore, a salt such as NH 4 Cl is added to ZnBr 2 in the electrolytic solution, and in addition to Pb, Sn, and quaternary ammonium salts for preventing dendrite of the negative electrode zinc and promoting uniform electrodeposition, methyl A bromine complexing agent of a morpholinium salt or a pyrrolidinium salt having an ethyl group or an ethyl group is added.
【００１８】亜鉛−臭素電池では、充電が進行するにつ
れて正極タンク内に上記錯化剤による臭素錯化物である
臭素コンプレックスが貯留される。そして充電初期では
ほとんど存在しない臭素コンプレックスが、充電の末期
では正極タンクの２５％程度まで増大している。この臭
素コンプレックスの比重は電解液よりも大であるため、
該臭素コンプレックスは正極タンクの底部に貯留され
る。In a zinc-bromine battery, a bromine complex, which is a bromine complex compound formed by the complexing agent, is stored in the positive electrode tank as charging proceeds. The bromine complex, which hardly exists at the beginning of charging, has increased to about 25% of the positive electrode tank at the end of charging. Since the specific gravity of this bromine complex is larger than that of the electrolyte,
The bromine complex is stored at the bottom of the positive electrode tank.
【００１９】電解液に対する臭素コンプレックスの割合
（％）を測定する方法としては、臭素コンプレックスの
色が、黒に近い赤色であって光を殆ど通さない上、上澄
みの電解液は橙色で少量の光を通すという特性を利用し
て、この電解液の通過可能な光量と色を判別する光学的
センサを用いて、タンク内の電解液の光量と色の判別を
行うことにより、電解液中に生じた臭素コンプレックス
の割合（％）を測定することができる。As a method for measuring the ratio (%) of the bromine complex to the electrolytic solution, the color of the bromine complex is red, which is close to black, and almost no light passes through. In addition, the supernatant electrolytic solution is orange and contains a small amount of light. By using the optical sensor that distinguishes the amount and color of light that can pass through this electrolytic solution by utilizing the characteristic of passing through, the amount of light and color of the electrolytic solution in the tank can be determined, and this can occur in the electrolytic solution. The ratio (%) of the bromine complex can be measured.
【００２０】電解液の光量と色を判別する光学的センサ
としては種々のものが考えられるが、例えばキーエンス
のＦＳ２Ｇシリーズを用いるのが適当である。Various optical sensors are conceivable for discriminating the light quantity and color of the electrolytic solution, but it is suitable to use, for example, KEYENCE FS2G series.
【００２１】図１は本実施例を適用して実験的に検証し
た充電深度（％）と臭素コンプレックスの電解液に対す
る体積割合（％）との相関を示すグラフである。尚、電
解液にはメチル・エチルモルホリニウムブロマイド、メ
チル・エチルピロリジニウムブロマイド各々０．５ｍｏ
ｌ／ｌの臭素錯化剤が添加されている。FIG. 1 is a graph showing the correlation between the depth of charge (%) and the volume ratio (%) of the bromine complex to the electrolytic solution, which was experimentally verified by applying this embodiment. In addition, 0.5 mol each of methyl-ethylmorpholinium bromide and methyl-ethylpyrrolidinium bromide was used as the electrolytic solution.
l / l bromine complexing agent is added.
【００２２】図１によれば、充電深度の０〜約６０％に
対応して臭素コンプレックスの体積割合が０〜２２％に
略直線的に変化しており、両者間には良好な相関が存在
することが理解される。従ってこの臭素コンプレックス
の体積割合から亜鉛−臭素電池の充電深度を可成りの測
定精度で測定することが可能である。According to FIG. 1, the volume ratio of the bromine complex changes linearly from 0 to 22% corresponding to 0 to about 60% of the charging depth, and there is a good correlation between the two. Be understood to do. Therefore, it is possible to measure the charge depth of the zinc-bromine battery from the volume ratio of the bromine complex with a considerable measurement accuracy.
【００２３】[0023]
【発明の効果】以上説明したように、本発明は充電の進
行に伴って正極タンク内に貯留される臭素錯化物の電解
液中での割合を、光量と色を判別する光学的センサを用
いて判別することにより、実験的に検証した充電深度
（％）と臭素錯化物の電解液に対する割合（％）との相
関グラフから亜鉛−臭素電池の充電深度を容易に求める
ことが出来る。As described above, the present invention uses an optical sensor for discriminating between the amount of light and the color of the ratio of the bromine complex compound stored in the positive electrode tank with the progress of charging in the electrolytic solution. It is possible to easily obtain the charge depth of the zinc-bromine battery from the correlation graph of the experimentally verified charge depth (%) and the ratio (%) of the bromine complex compound to the electrolytic solution.
【００２４】上記の判別操作は比較的簡単に行える上、
電池が不規則な充放電運転パターンとか、もしくは自己
放電量が多くなるような運転パターンに基づいて使用さ
れている場合にあっても何等問題なく正確な充電深度及
び残存容量を測定可能であり、充電時における過充電
（Over Charge）が防止されて電池の性能や寿命に悪影
響を及ぼすことがない。判別には光学的センサを使用し
ているため、電位が高い電池に適用する場合にも絶縁対
策を留意する必要がなく、電解液の温度補正等の煩瑣な
操作は不要である。The above discrimination operation can be performed relatively easily, and
Even if the battery is used based on an irregular charging / discharging operation pattern or an operation pattern such that the amount of self-discharge increases, it is possible to accurately measure the charge depth and the remaining capacity without any problem, Overcharging at the time of charging is prevented and the performance and life of the battery are not adversely affected. Since an optical sensor is used for the determination, it is not necessary to pay attention to insulation measures even when applied to a battery having a high electric potential, and a complicated operation such as temperature correction of the electrolytic solution is unnecessary.
【００２５】特に電池の放電時においても電池の残存容
量が容易に推定できるので、特にポータブル機器用の電
源として使用した際の電池の使用可能時間が明確とな
り、作業遂行がスムーズになるという効果が得られる。In particular, since the remaining capacity of the battery can be easily estimated even when the battery is discharged, the usable time of the battery becomes clear when used as a power source for portable equipment, and the work can be smoothly performed. can get.
【図１】本実施例で実験的に検証した臭素錯化物の電解
液に対する体積割合（％）と充電深度との相関を示すグ
ラフ。FIG. 1 is a graph showing a correlation between a volume ratio (%) of a bromine complex compound to an electrolytic solution experimentally verified in this example and a charging depth.
Claims (1)
側タンクから正極室に電解液がポンプで循環され、充電
時に正極で発生した臭素が電解液に添加した臭素錯化剤
と反応して正極側タンクへ戻されるとともに、放電時は
該電解液がポンプで電池本体内へ送り込まれて還元され
るようにした亜鉛−臭素電池において、 光量と色を判別する光学的センサを用いて、上記正極側
タンク内の電解液の光量と色の判別を行うことにより、
充電の進行に伴って正極側タンクに貯留される臭素錯化
物の電解液に対する割合を判定し、この判定結果から電
池の充電深度を求めることを特徴とする亜鉛−臭素電池
の充電深度の測定方法。1. An electrolyte solution is circulated by a pump from a positive electrode side tank separately placed from the battery main body during charging / discharging, and bromine generated in the positive electrode during charging reacts with a bromine complexing agent added to the electrolytic solution. In the zinc-bromine battery, in which the electrolytic solution is pumped into the battery body and reduced during discharge, while using an optical sensor that determines the amount of light and the color, By determining the light amount and color of the electrolyte in the positive electrode side tank,
A method for measuring the charge depth of a zinc-bromine battery, characterized by determining the ratio of the bromine complex compound stored in the positive electrode side tank to the electrolytic solution as the charge progresses, and determining the charge depth of the battery from this determination result. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4172631A JPH0620726A (en) | 1992-06-30 | 1992-06-30 | Measuring method for charging depth of zinc-bromine battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4172631A JPH0620726A (en) | 1992-06-30 | 1992-06-30 | Measuring method for charging depth of zinc-bromine battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0620726A true JPH0620726A (en) | 1994-01-28 |
Family
ID=15945460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4172631A Pending JPH0620726A (en) | 1992-06-30 | 1992-06-30 | Measuring method for charging depth of zinc-bromine battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7367760B2 (en) | 2005-05-24 | 2008-05-06 | Hitachi Koki Co., Ltd. | Power tool |
-
1992
- 1992-06-30 JP JP4172631A patent/JPH0620726A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7367760B2 (en) | 2005-05-24 | 2008-05-06 | Hitachi Koki Co., Ltd. | Power tool |
| US7726918B2 (en) | 2005-05-24 | 2010-06-01 | Hitachi Koki Co., Ltd. | Power tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6850038B2 (en) | Method of estimating state of charge and open circuit voltage of battery, and method and device for computing degradation degree of battery | |
| US8649988B2 (en) | Service life estimation method for lead storage battery and power source system | |
| US9121911B2 (en) | Degradation determination device and degradation determination method for lithium ion secondary battery | |
| KR101238478B1 (en) | The Measurment Method of Battery SOC | |
| JPH05190210A (en) | Method and method for determining state of charge of zinc-bromine battery | |
| JP2003243042A (en) | Apparatus and method for detecting degree of deterioration of lithium battery constituting assembled battery | |
| Maragur et al. | State-of-charge approximation using coulomb counting for lithium ion batteries–a low-cost approach | |
| JP7429823B2 (en) | A method for determining the remaining capacity of a lithium-sulfur battery and a battery pack embodying the method | |
| CN112327176A (en) | Battery performance detection method, system and storage medium | |
| JPH0620726A (en) | Measuring method for charging depth of zinc-bromine battery | |
| JP2021071319A (en) | Soc estimating device, power storage device, and soc estimating method | |
| JP3678045B2 (en) | Battery charging method | |
| JPH06260217A (en) | Measuring method for charging depth of zinc-bromine battery | |
| JPH0784015A (en) | Lead-acid battery residual capacity detector | |
| JP3009677B2 (en) | Battery monitoring device | |
| KR20230074876A (en) | Method for determining state of health of a lithium-sulfur battery | |
| JPH01149377A (en) | Charging method for zinc-bromine cell | |
| US20140170519A1 (en) | Flow Battery System and Method Thereof | |
| JPH0660917A (en) | Detection for electrolyte of sinc-bromine battery and measuring method for charge depth | |
| JPH0794215A (en) | Charging degree measuring meter of zinc-bromine battery | |
| JPH0461469B2 (en) | ||
| JP3003321B2 (en) | Lifetime evaluation method for zinc-bromine batteries | |
| JPH04301379A (en) | Capacity meter for zinc-bromine battery | |
| RU1777190C (en) | Method of checking specific gravity of electrolyte in lead-acid cells | |
| JPH10294132A (en) | Lead-acid battery capacity estimation method |