JPH0487270A - Deterioration supervising method of lead storage battery - Google Patents
Deterioration supervising method of lead storage batteryInfo
- Publication number
- JPH0487270A JPH0487270A JP2202791A JP20279190A JPH0487270A JP H0487270 A JPH0487270 A JP H0487270A JP 2202791 A JP2202791 A JP 2202791A JP 20279190 A JP20279190 A JP 20279190A JP H0487270 A JPH0487270 A JP H0487270A
- Authority
- JP
- Japan
- Prior art keywords
- deterioration
- electrode
- anode
- cathode
- impedance
- 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
- 230000006866 deterioration Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 5
- 239000002253 acid Substances 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 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
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は鉛蓄電池の劣化、特に据置形等の大容量電池の
劣化状態を監視する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a method for monitoring the deterioration of lead-acid batteries, particularly of large-capacity batteries such as stationary batteries.
従来の技術
長期にわたる据置形鉛蓄電池の劣化監視には従来から定
期的な電圧、浮動の電流、比重等の測定により行ってい
る。ところで最近、密閉形鉛蓄電池が大形化し据置形に
も展開され始め今後ますます密閉化が進むものと思われ
る。密閉形鉛蓄電池の場合、比重は測定できないために
、劣化監視は電圧、電流、電池の内部インピーダンスに
らる方法しかない。Conventional Technology Long-term deterioration monitoring of stationary lead-acid batteries has traditionally been carried out by periodically measuring voltage, floating current, specific gravity, etc. By the way, sealed lead-acid batteries have recently become larger and have started to be developed into stationary types, and it is expected that sealed batteries will become more and more popular in the future. In the case of sealed lead-acid batteries, since specific gravity cannot be measured, the only way to monitor deterioration is to monitor voltage, current, and internal impedance of the battery.
発明が解決しようとする課題
電圧、電流では劣化との相関が不正確で、故障、異常発
生などは判断できるが、劣化状態はきわめて把握しにく
い。液形電池の場合、比重測定が可能であるが、その測
定だけではやはり、劣化状態を把握しきれない。特に急
激に劣化する場合もあり、常に監視できる方法が望まれ
ている。内部インピーダンスを測定する方法も提案され
ているが、通常のＩＫＨｇ以上の高い周波数では劣化と
の相関が得られていない、また低周波での測定も提案さ
れているが、陽極、陰極を分離して測定できず、特に陽
極の劣化についての情報は得られにくい。Problems to be Solved by the Invention Voltage and current have inaccurate correlations with deterioration, and although failures and abnormalities can be determined, it is extremely difficult to grasp the state of deterioration. In the case of liquid batteries, it is possible to measure the specific gravity, but this measurement alone does not fully grasp the state of deterioration. In particular, there are cases where the deterioration occurs rapidly, so a method that can be constantly monitored is desired. A method of measuring internal impedance has also been proposed, but no correlation with deterioration has been obtained at frequencies higher than normal IKHg.Measurement at low frequencies has also been proposed, but it is difficult to measure internal impedance by separating the anode and cathode. In particular, it is difficult to obtain information on the deterioration of the anode.
課題を解決するための手段
本発明は上記の目的を達成するためになされたもので、
鉛蓄電池に第３電極を挿入し、第３電極との陽極端子間
、第３電極と陰極端子間との内部インピーダンスを１０
Ｈｇ以下の周波数で測定することにより、定期的に各種
のインビーダンス変化を追いかけ劣化状態を監視するも
のである。Means for Solving the Problems The present invention has been made to achieve the above objects.
A third electrode is inserted into the lead-acid battery, and the internal impedance between the third electrode and the anode terminal and between the third electrode and the cathode terminal is set to 10.
By measuring at a frequency below Hg, various impedance changes are periodically tracked and the deterioration state is monitored.
作用
鉛蓄電池の各電極板の劣化状態を定期的に測定すること
が可能である。It is possible to periodically measure the state of deterioration of each electrode plate of a working lead-acid battery.
実施例 本発明の一実施例を説明する。Example An embodiment of the present invention will be described.
使用した鉛蓄電池は２００Ａｒ、２ｖの密閉形据置用鉛
蓄電池である。第３電極としてｐｂｏ□電極を採用し、
通常は電池の陽極と接続させ、測定時には陽極からスイ
ッチにより切り離して使用した。Ｐｂ０Ｚ電極は２０ｍ
ｍＸ２０印×１．１卸のものを用いた。The lead acid battery used was a 200Ar, 2V sealed stationary lead acid battery. A pbo□ electrode is adopted as the third electrode,
Normally, it was connected to the anode of the battery, and during measurements it was disconnected from the anode using a switch. Pb0Z electrode is 20m
A size of m×20 marks×1.1 wholesale was used.
第１図に２ケ月ごとの各種のインピーダンス変化を示し
た。測定周波数は１００ｍＨｇで行った結果である。ま
た２ケ月ごとの容量推移を同時に示した。試験条件は４
５°Ｃ雰囲気で通常の浮動充電で行った。第１図に示さ
れるように容量の低下と共に、陽極でインピーダンスの
増加がみられ、３６ケ月での劣化支配は陽極である。Figure 1 shows various impedance changes every two months. The measurement frequency was 100 mHg. It also shows capacity trends every two months. The test conditions are 4
Normal floating charging was performed in a 5°C atmosphere. As shown in FIG. 1, as the capacity decreases, the impedance increases at the anode, and the anode dominates the deterioration after 36 months.
第２図は同し条件で電池乙こキレツを設けさせ気密不良
した電池での１００＋＋＋Ｈｇのインピーダンス変化を
示す。この場合劣化支配は負極であり、１００ｍＨｇの
負極のインピーダンスが増加している。FIG. 2 shows an impedance change of 100 +++ Hg in a battery with a defective airtight seal under the same conditions. In this case, the deterioration is dominated by the negative electrode, and the impedance of the negative electrode increases by 100 mHg.
陽極の方は変化が少ない。このように第３電極を用いて
各種のインピーダンスを１０Ｈｇ以下の低周波で測定す
ることにより各種の劣化状況が定期的に監視でき、寿命
の判断が正確に行なえる。There is little change at the anode. By measuring various impedances at a low frequency of 10 Hg or less using the third electrode in this manner, various deterioration conditions can be periodically monitored, and the life span can be accurately determined.
ところで本発明は全電池に第３電極を設けることも、ま
たＭｉＮ池の１セル卆バイロンドセルとして第３電極を
設けることも、また数１０個のろんである。By the way, in the present invention, it is possible to provide the third electrode in all the batteries, or to provide the third electrode in one Byron cell of a MiN cell, or to provide several dozen third electrodes.
なお周波数を１０Ｈｇ以下に限定した理由は１０Ｈｇ以
上では電気化学反応が追いつかなくなり、ファラデーイ
ンピーダンスの情報が得られにくく、電池の劣化情報が
とり出しにくくなり、劣化とインピーダンスの増加に明
確な差が出てこないためである。The reason why the frequency was limited to 10 Hg or less is that at 10 Hg or more, the electrochemical reaction cannot keep up, making it difficult to obtain information on Faraday impedance, making it difficult to extract information on battery deterioration, and there is a clear difference between deterioration and impedance increase. This is because it does not come.
本発明は鉛蓄電池の各極板の劣化状況を定期的に測定す
るこことが可能である。これは鉛蓄電池の陽極、陰極と
も１０８ ｇ以下の周波数でのインピーダンス劣化と共
に増加することを応用するものである。１０Ｈｇ以下で
劣化上共にインピーダンスが上昇する理由は有効活物質
量に対する電極の電気二重層容量の低下、電荷移動抵抗
の増大、拡散過電圧の増加などが低周波領域で顕著とな
るためと考えられる。しかし、陽極、陰極ではその絶対
値が大きく異り、両極間の電池インピーダンスは陽極、
陰極の劣化を分離することがむずかしく、また判定をあ
やまるおそれが多い。そこで電池内に第３電極を設け、
各種のインピーダンスを直接測定することにより確実な
る劣化を定期的に監視することが可能となる。According to the present invention, it is possible to periodically measure the deterioration status of each electrode plate of a lead-acid battery. This is based on the fact that the impedance of both the anode and cathode of lead-acid batteries increases with deterioration at frequencies below 108 g. The reason why impedance increases along with deterioration at 10 Hg or less is thought to be that the reduction in electric double layer capacity of the electrode, increase in charge transfer resistance, increase in diffusion overvoltage, etc. relative to the amount of effective active material become noticeable in the low frequency region. However, the absolute value of the anode and cathode is significantly different, and the battery impedance between the two electrodes is
It is difficult to separate the deterioration of the cathode, and there is a high risk of misjudgment. Therefore, a third electrode is provided inside the battery,
By directly measuring various impedances, it is possible to periodically monitor reliable deterioration.
発明の効果
上述したように、本発明によれば、第３電極を鉛蓄電池
に設け、各種のインピーダンスをｌＯＨｇ以下で測定す
ることにより、定期的に各種の劣化状態を把握すること
ができ、鉛蓄電池の劣化監視を精度良く行なえる。また
、第３電極を設けることにより、単極の電位変化も同時
に追求でき、比重情報も得られることから総合的な劣化
監視システムを組むことも可能である等工業的価値極め
て大なるものである。Effects of the Invention As described above, according to the present invention, by providing a third electrode on a lead-acid battery and measuring various impedances at lOHg or less, various deterioration states can be periodically ascertained. Deterioration of storage batteries can be monitored with high accuracy. In addition, by providing a third electrode, it is possible to simultaneously track the potential change of a single electrode, and information on specific gravity can also be obtained, making it possible to set up a comprehensive deterioration monitoring system, which is of great industrial value. .
第１図は周波数１００ｍＨｇで測定した密閉形鉛蓄電池
の浮動充電期間に対する放電容量変化と陽極、陰極のイ
ンピーダンス変化を示す特性図、第２図は周波数１００
ｍｔ１ｇで測定した気密不良密閉形鉛蓄電池の浮動充電
期間に対する放電容量変化と陽極、陰極のインピーダン
ス変化を示す特性図である。Figure 1 is a characteristic diagram showing the change in discharge capacity and the impedance change of the anode and cathode with respect to the floating charging period of a sealed lead-acid battery measured at a frequency of 100 mHg, and Figure 2 is a characteristic diagram showing the change in impedance of the anode and cathode with respect to the floating charging period of a sealed lead-acid battery measured at a frequency of 100 mHg.
FIG. 2 is a characteristic diagram showing a change in discharge capacity and a change in impedance of an anode and a cathode with respect to a floating charging period of a sealed lead-acid battery with poor airtightness measured at mt1g.
Claims (1)
第３電極と陰極端子間との内部インピーダンスを１０Ｈ
ｇ以下の周波数で測定することを特徴とする鉛蓄電池の
劣化監視方法。Insert the third electrode into the lead-acid battery, and between the third electrode and the anode terminal,
The internal impedance between the third electrode and the cathode terminal is 10H.
A method for monitoring deterioration of a lead-acid battery, characterized by measuring at a frequency of less than g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202791A JPH0487270A (en) | 1990-07-31 | 1990-07-31 | Deterioration supervising method of lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202791A JPH0487270A (en) | 1990-07-31 | 1990-07-31 | Deterioration supervising method of lead storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0487270A true JPH0487270A (en) | 1992-03-19 |
Family
ID=16463256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2202791A Pending JPH0487270A (en) | 1990-07-31 | 1990-07-31 | Deterioration supervising method of lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0487270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033427A (en) * | 2009-07-31 | 2011-02-17 | Nissan Motor Co Ltd | Device and method for determining battery deterioration |
| JP2018045898A (en) * | 2016-09-15 | 2018-03-22 | 富士電機株式会社 | Lead storage battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105975A (en) * | 1980-12-22 | 1982-07-01 | Toyota Motor Corp | Deterioration detector of storage battery |
| JPH01253175A (en) * | 1988-03-31 | 1989-10-09 | Shin Kobe Electric Mach Co Ltd | Method for detecting degradated conditions in sealed lead battery |
-
1990
- 1990-07-31 JP JP2202791A patent/JPH0487270A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105975A (en) * | 1980-12-22 | 1982-07-01 | Toyota Motor Corp | Deterioration detector of storage battery |
| JPH01253175A (en) * | 1988-03-31 | 1989-10-09 | Shin Kobe Electric Mach Co Ltd | Method for detecting degradated conditions in sealed lead battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033427A (en) * | 2009-07-31 | 2011-02-17 | Nissan Motor Co Ltd | Device and method for determining battery deterioration |
| JP2018045898A (en) * | 2016-09-15 | 2018-03-22 | 富士電機株式会社 | Lead storage battery |
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