JP2890829B2 - How to charge a sealed lead-acid battery - Google Patents
How to charge a sealed lead-acid batteryInfo
- Publication number
- JP2890829B2 JP2890829B2 JP2324021A JP32402190A JP2890829B2 JP 2890829 B2 JP2890829 B2 JP 2890829B2 JP 2324021 A JP2324021 A JP 2324021A JP 32402190 A JP32402190 A JP 32402190A JP 2890829 B2 JP2890829 B2 JP 2890829B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- constant
- voltage
- battery
- predetermined
- 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 - Lifetime
Links
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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、特に密閉形鉛蓄電池に適した充電方法に関
する。Description: TECHNICAL FIELD The present invention relates to a charging method particularly suitable for a sealed lead-acid battery.
従来の技術 密閉形鉛蓄電池の充電は、定電流充電→定電圧充電の
段階を経るのが一般的である。第３図に示すように、初
めは定電流または準定電流で充電を行なう。充電が進行
すると電池電圧が上昇し電池内部ではガスの発生が活発
になってガス圧力が高くなるが、その電池内部ガス圧力
が安全弁を動作させない範囲の所定の電池電圧を設定し
ておき、その電池電圧に到達した後は、定電圧充電を行
なうものである。このとき、充電電流は、徐々に低下し
ていく。2. Description of the Related Art In general, charging of a sealed lead-acid battery generally involves a step of constant current charging → constant voltage charging. As shown in FIG. 3, charging is initially performed with a constant current or a quasi-constant current. As charging progresses, the battery voltage rises, and the generation of gas inside the battery becomes active and the gas pressure rises.However, a predetermined battery voltage within a range where the gas pressure inside the battery does not operate the safety valve is set, and After reaching the battery voltage, constant voltage charging is performed. At this time, the charging current gradually decreases.
発明が解決しようとする課題 上記の充電方法では、古い電池や電池個々のバラツキ
によって、定電圧充電に入っても充電電流が下がりきら
ないものがある。このような電池では、過充電や熱逸走
の危険があり、電池のサイクル寿命を短くしてしまう。Problems to be Solved by the Invention In the above-mentioned charging method, there is a method in which the charging current does not completely decrease even when the constant-voltage charging is started due to an old battery or a variation in each battery. In such a battery, there is a danger of overcharging or thermal runaway, and the cycle life of the battery is shortened.
本発明が解決しようとする課題は、過充電や熱逸走か
ら電池を守り、サイクル寿命を延ばすことである。The problem to be solved by the present invention is to protect the battery from overcharging and thermal runaway and to extend the cycle life.
課題を解決するための手段 本発明に係る充電方法は、密閉形鉛蓄電池を定電流ま
たは準定電流で充電して、所定の電池電圧に到達したと
きに、定電圧充電に切り替え、以下の充電操作を行なう
ことを特徴とする。Means for Solving the Problems The charging method according to the present invention comprises charging a sealed lead-acid battery with a constant current or a quasi-constant current, and when reaching a predetermined battery voltage, switching to a constant voltage charge, and The operation is performed.
所定の電池電圧に到達後、徐々に減少する充電電流が
所定の第１の設定値I1からさらに減少して所定の第２の
設定値I2にまで減少する時間を計測する。After reaching a predetermined battery voltage, charging current decreases gradually to measure the time to decrease to a second set value I 2 given further decreased from the first set value I 1 given.
そして計測した時間Ｔが予め設定した時間T0以内であ
れば引き続き定電圧充電を行なう。And, if the time measured time T is preset T 0 within the continue the constant voltage charging.
一方、Ｔ＞T0であれば引き続き定電圧充電して、所定
時間Ts経過した後に、さらに微小電流による定電流充電
を行なうか充電を停止する。On the other hand, if T> T 0 , constant-voltage charging is continued, and after a lapse of a predetermined time Ts, constant-current charging with a smaller current is performed or charging is stopped.
作用 本発明に係る充電方法は、古い電池等では、充電末期
でも充電電流が多く流れることに着目し、定電圧充電に
入った後の充電電流を監視して、その状態によって充電
の方法を変えるので、新旧の電池を問わず適正な充電を
可能で、過充電から電池を守り、サイクル寿命を延ばす
ことができる。The charging method according to the present invention focuses on the fact that, in an old battery or the like, a large amount of charging current flows even at the end of charging, monitors the charging current after entering constant voltage charging, and changes the charging method depending on the state. Therefore, proper charging is possible regardless of the old and new batteries, the batteries can be protected from overcharging, and the cycle life can be extended.
実施例 第１図に、密閉形鉛蓄電池の充電特性を示す。まず、
定電流で充電を行ない、所定の設定電圧に達したときか
ら定電圧充電に切り換え、時間の計測を始める。充電電
圧が徐々に減少し、1/50C（C:電池容量）Ａになるまで
の時間Ｔが、予め設定された時間T0（１時間）以内であ
れば、このまま定電圧充電を行なう。第１図（ａ）が、
この様子を示している。Embodiment FIG. 1 shows charging characteristics of a sealed lead-acid battery. First,
Charging is performed with a constant current, and when the voltage reaches a predetermined set voltage, the mode is switched to constant voltage charging, and time measurement is started. Reduced charging voltage gradually, 1 / 50C: time T until the (C battery capacity) A is, if it is within predetermined time T 0 (1 hour), this state performs the constant voltage charging. FIG. 1 (a)
This is shown.
しかし、第１図（ｂ）に示すように、Ｔ＞T0の場合
は、設定電圧に達してから計測を開始した時間が予め定
められた時間Tsに到達したときに充電電流を微小電流
（1/100〜1/200C）に切り換え定電流充電を行なう。However, as shown in FIG. 1 (b), when T> T 0 , when the time when the measurement is started after reaching the set voltage has reached a predetermined time Ts, the charging current is reduced to a very small current ( 1/100 to 1 / 200C) to perform constant current charging.
また、第１図（ｃ）は、Ｔ＞T0の場合に、設定電圧に
達してから計測を開始した時間が予め定められた時間Ts
に到達したときに充電を停止する例を示している。Further, FIG. 1 (c) is, T> in the case of T 0, the time period of starting the measurement after reaching the set voltage is a predetermined Ts
In the example shown in FIG.
第２図は、上記実施例の充電方法を採用した場合と、
設定電圧に到達した後、単に低電圧充電に切り換える従
来の充電方法を採用した場合の、充放電サイクル数と放
電容量の関係を示している。本発明に係る実施例では、
密閉形鉛蓄電池のサイクル寿命が延びていることがわか
る。FIG. 2 shows the case where the charging method of the above embodiment is adopted,
9 shows a relationship between the number of charge / discharge cycles and the discharge capacity when a conventional charging method of simply switching to low-voltage charging after reaching a set voltage is employed. In the embodiment according to the present invention,
It can be seen that the cycle life of the sealed lead storage battery is extended.
発明の効果 上述のように、本発明に係る充電方法では、電池個々
の新旧のバラツキに拘らず、過充電や熱逸走から電池を
守り、密閉形鉛蓄電池のサイクル寿命を延ばすことがで
きる。Effects of the Invention As described above, the charging method according to the present invention can protect a battery from overcharging and thermal runaway and prolong the cycle life of a sealed lead-acid battery regardless of whether the battery is new or old.
第１図は本発明に係る充電方法の実施例における充電特
性を示す曲線図、第２図は充放電サイクル数と放電容量
の関係を示す曲線図、第３図は従来の充電方法における
充電特性を示す曲線図である。FIG. 1 is a curve diagram showing charging characteristics in an embodiment of the charging method according to the present invention, FIG. 2 is a curve diagram showing the relationship between the number of charge / discharge cycles and discharge capacity, and FIG. 3 is a charging characteristic in a conventional charging method. FIG.
Claims (2)
充電して、所定の電池電圧に到達したときに、定電圧充
電に切り替え、以下の充電操作を行なうことを特徴とす
る密閉形鉛蓄電池の充電方法。 所定の電池電圧に到達後、徐々に減少する充電電流が所
定の第１の設定値I1からさらに減少して所定の第２の設
定値I2にまで減少する時間を計測し、計測した時間Ｔが
予め設定した時間T0以内であれば引き続き定電圧充電を
行ない、 Ｔ＞T0であれば引き続き定電圧充電して、所定時間Ts経
過した後に、さらに微小電流による定電流充電を行な
う。A sealed type lead-acid battery is charged with a constant current or a quasi-constant current, and when a predetermined battery voltage is reached, switching to constant voltage charging is performed and the following charging operation is performed. How to charge lead storage batteries. After reaching the predetermined battery voltage, the time when the gradually decreasing charging current further decreases from the predetermined first set value I 1 to the predetermined second set value I 2 is measured, and the measured time is measured. If T is within a preset time T 0 , constant-voltage charging is continued. If T> T 0 , constant-voltage charging is continued. After a predetermined time Ts has elapsed, constant-current charging with a minute current is further performed.
充電して、所定の電池電圧に到達したときに、定電圧充
電に切り替え、以下の充電操作を行なうことを特徴とす
る密閉形鉛蓄電池の充電方法。 所定の電池電圧に到達後、徐々に減少する充電電流が所
定の第１の設定値I1からさらに減少して所定の第２の設
定値I2にまで減少する時間を計測し、 計測した時間Ｔが予め設定した時間T0以内であれば引き
続き定電圧充電を行ない、 Ｔ＞T0であれば引き続き定電圧充電して、所定時間Ts経
過した後に、充電を停止する。2. A sealed battery according to claim 1, wherein the sealed lead-acid battery is charged with a constant current or a quasi-constant current, and when a predetermined battery voltage is reached, the battery is switched to a constant voltage charge and the following charging operation is performed. How to charge lead storage batteries. After reaching a predetermined battery voltage and gradually decreasing charging current to measure the time to decrease to a second set value I 2 given further decreased from the first set value I 1 of the predetermined time measured If T is within a preset time T 0 , constant-voltage charging is performed continuously. If T> T 0 , constant-voltage charging is continued, and charging is stopped after a predetermined time Ts has elapsed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324021A JP2890829B2 (en) | 1990-11-27 | 1990-11-27 | How to charge a sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324021A JP2890829B2 (en) | 1990-11-27 | 1990-11-27 | How to charge a sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04192267A JPH04192267A (en) | 1992-07-10 |
| JP2890829B2 true JP2890829B2 (en) | 1999-05-17 |
Family
ID=18161263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2324021A Expired - Lifetime JP2890829B2 (en) | 1990-11-27 | 1990-11-27 | How to charge a sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2890829B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5532331B2 (en) * | 2010-09-29 | 2014-06-25 | 日立工機株式会社 | Charger |
-
1990
- 1990-11-27 JP JP2324021A patent/JP2890829B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04192267A (en) | 1992-07-10 |
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