JP2003223935A - Charging method of control valve lead storage battery - Google Patents
Charging method of control valve lead storage batteryInfo
- Publication number
- JP2003223935A JP2003223935A JP2002023115A JP2002023115A JP2003223935A JP 2003223935 A JP2003223935 A JP 2003223935A JP 2002023115 A JP2002023115 A JP 2002023115A JP 2002023115 A JP2002023115 A JP 2002023115A JP 2003223935 A JP2003223935 A JP 2003223935A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- charging
- storage battery
- lead storage
- valve type
- 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
-
- 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
【０００１】[0001]
【発明の属する技術分野】本発明は、制御弁式鉛蓄電池
の充電方式に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control valve type lead storage battery charging system.
【０００２】[0002]
【従来の技術】従来、制御弁式鉛蓄電池の充電は、特許
第２８９０８２９号公報で開示されているように定電流
又は準定電流で一定電圧まで充電した後に、一定電圧で
規定の充電量まで充電をする方式が一般的に用いられて
いた。2. Description of the Related Art Conventionally, a control valve type lead-acid battery is charged by a constant current or a quasi-constant current to a constant voltage as disclosed in Japanese Patent No. 2890829, and then to a specified charge amount at a constant voltage. The method of charging was generally used.
【０００３】すなわち、図３に示すように、最初は定電
流又は準定電流で充電を行い、充電の進行に伴って制御
弁式鉛蓄電池の電圧が次第に上昇していく。そして、制
御弁式鉛蓄電池の電圧が一定電圧になった場合には、そ
の電圧で充電を続けるものである。そうすると、充電量
の増加とともに制御弁式鉛蓄電池の充電電流は次第に減
少していく。That is, as shown in FIG. 3, initially, charging is performed with a constant current or quasi-constant current, and the voltage of the control valve type lead storage battery gradually rises as the charging progresses. Then, when the voltage of the control valve type lead storage battery becomes a constant voltage, charging is continued at that voltage. Then, the charging current of the control valve type lead storage battery gradually decreases as the charging amount increases.
【０００４】[0004]
【発明が解決しようとする課題】従来は、充電を停止す
るための条件として、充電電流（Ａ）を時間（ｈ）で積
算し、放電量（Ａｈ）に対して、約１０３〜１１０％を
充電する方式が主に用いられていた。しかしながら、こ
の方式を用いると制御装置が複雑となるため、コスト高
になるという問題点があった。Conventionally, as a condition for stopping charging, charging current (A) is integrated over time (h), and about 103 to 110% of the discharge amount (Ah) is calculated. The charging method was mainly used. However, when this method is used, the control device becomes complicated, resulting in a high cost.
【０００５】加えて、制御弁式鉛蓄電池は、充電時の温
度によって充電特性が変化するために、上記した従来の
充電方式では、時として最適な充電量を確保することが
できず、過充電となる場合や充電不足となる場合が認め
られた。In addition, since the control valve type lead-acid battery changes its charging characteristics depending on the temperature at the time of charging, the above-mentioned conventional charging system cannot always secure an optimum amount of charge, resulting in overcharging. In some cases, or when the battery is insufficiently charged.
【０００６】本発明の目的は、比較的簡単な方式で、充
電の終了を判断することができる制御弁式鉛蓄電池の充
電方式を提供することにある。An object of the present invention is to provide a control valve type lead-acid battery charging method capable of determining the end of charging with a relatively simple method.
【謀題を解決するための手段】本発明は、上記の問題点
を解決するものであり、制御弁式鉛蓄電池の充電時の温
度によって、充電終了の判断を変更して行なうことがで
きる充電方式を提供するものである。SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems, and it is possible to change the judgment of the end of charging depending on the temperature at the time of charging the control valve type lead storage battery. It provides a method.
【０００７】すなわち、第一の発明は、一定電圧まで定
電流又は準定電流で充電し、一定電圧に達した後は定電
圧充電をし、前記定電圧充電時の電流値から充電の終了
を判断する制御弁式鉛蓄電池の充電方式であって、前記
電流値は制御弁式鉛蓄電池の温度が高いほど小さくする
ことを特徴としている。That is, the first aspect of the invention is to charge the battery with a constant current or a quasi-constant current up to a constant voltage, then charge the constant voltage after reaching the constant voltage, and terminate the charging from the current value at the constant voltage charging. This is a method of charging a control valve type lead-acid battery, which is characterized in that the current value is reduced as the temperature of the control valve type lead-acid battery increases.
【０００８】第二の発明は、前記電流値は、制御弁式鉛
蓄電池の電池温度が高いほど、指数関数的に低くするこ
とを特徴としており、第三の発明は前記一定電圧は、制
御弁式鉛蓄電池の電池温度が高いほど、低くすることを
特徴としている。A second aspect of the invention is characterized in that the current value decreases exponentially as the battery temperature of the control valve type lead storage battery increases, and the third aspect of the invention is that the constant voltage is controlled by the control valve. The higher the battery temperature of the lead-acid battery, the lower the temperature.
【０００９】[0009]
【発明の実施の形態】以下において、本発明の実施の形
態を、図面を参照として詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１０】（試験装置）図４は、本発明に係わる充電
方式を用いた充電器のブロック図である。すなわち、商
用電源1からの交流を充電器2に入力して直流に変換し
て、制御弁式鉛蓄電池6を充電するものである。なお、
本発明に係わる充電器2は、コントロール部3と電源部4
とで構成される。そして、コントロール部3は、制御弁
式鉛蓄電池6の充電時の電流値を電流計8で、充電時の電
圧を電圧計7で、充電時の温度を温度センサ5でそれぞれ
計測して、充電の終了を判断して電源部4を制御するも
のである。(Test Device) FIG. 4 is a block diagram of a charger using the charging system according to the present invention. That is, the alternating current from the commercial power source 1 is input to the charger 2 and converted into direct current, and the control valve type lead storage battery 6 is charged. In addition,
The charger 2 according to the present invention includes a control unit 3 and a power supply unit 4
Composed of and. Then, the control unit 3 measures the current value during charging of the control valve type lead-acid battery 6 with the ammeter 8, the voltage during charging with the voltmeter 7, and the temperature during charging with the temperature sensor 5, respectively. Is determined to control the power supply unit 4.
【００１１】（試験内容）以下の実験では、２Ｖ−１０
００Ａｈの制御弁式鉛蓄電池を２４個直列に接続して寿
命試験をした。なお、前記制御弁式鉛蓄電池は、定電流
で理論容量の３００％を充電して電槽化成をした後、
０．１ＣＡで放電（放電終止電圧：１．８Ｖ/セル）し
て、初期の放電容量を測定したものであり、従来から使
用されているものである。(Test contents) In the following experiment, 2V-10
A life test was performed by connecting 24 00Ah control valve type lead storage batteries in series. The control valve type lead-acid battery is charged with 300% of the theoretical capacity at a constant current to form a battery case,
The initial discharge capacity was measured by discharging at 0.1 CA (discharge end voltage: 1.8 V / cell), which has been conventionally used.
【００１２】これらの制御弁式鉛蓄電池は、初期の放電
容量を測定した後に、定電流（ただし、制限電流：０．
２ＣＡ）で一定電圧（Ｖ）まで充電した後、その電圧で
定電圧充電を続ける方式を用いた。そして、定電圧充電
では、充電の進行とともに次第に充電電流が減少し、後
述する一定の電流値まで減少した時点で充電を終了する
ようにした。その後、０．１５ＣＡの定電流で４時間放
電する方式を繰り返した。In these control valve type lead-acid batteries, a constant current (limited current: 0.
2CA) was used to charge to a constant voltage (V) and then constant voltage charging was continued at that voltage. In the constant voltage charging, the charging current gradually decreases as the charging progresses, and the charging is terminated when the charging current decreases to a constant current value described later. After that, the method of discharging at a constant current of 0.15 CA for 4 hours was repeated.
【００１３】なお、前記した一定電圧として、（１）式
に示すように、２．４０Ｖ（２０℃）を基準とし、温度
補正値として（−５ｍＶ／℃）実施した。すなわち、
（１）式に示すように、制御弁式鉛蓄電池の温度が高い
ほど、定電流充電から定電圧充電へ切換えるための一定
電圧（Ｖ）を低くするように制御した。As the above-mentioned constant voltage, as shown in the equation (1), 2.40 V (20 ° C.) was used as a reference, and a temperature correction value (−5 mV / ° C.) was used. That is,
As shown in the formula (1), the higher the temperature of the control valve type lead storage battery, the lower the constant voltage (V) for switching from constant current charging to constant voltage charging.
【００１４】
Ｖ ＝ Ｖ0 − ｔs×（ｔ−２０℃） （１）式
ただし、Ｖ0＝２．４０ボルト／セル、ｔs＝５ｍＶ／
（セル・℃）、ｔ：制御弁式鉛蓄電池の温度
そして、１００サイクルの充放電をする毎に、０．１Ｃ
Ａの定電流放電（放電終止電圧：１．８Ｖ／セル）で放
電容量を測定し、初期の放電容量に対して７０％以下に
なった時点を制御弁式鉛蓄電池の寿命と判断した。V = V 0 −ts × (t−20 ° C.) (1) Expression where V 0 = 2.40 V / cell, ts = 5 mV /
(Cell / ° C), t: temperature of the valve regulated lead-acid battery, and 0.1C each time the battery is charged / discharged for 100 cycles
The discharge capacity was measured by the constant current discharge of A (discharge end voltage: 1.8 V / cell), and the time when the discharge capacity was 70% or less of the initial discharge capacity was determined to be the life of the control valve type lead storage battery.
【００１５】[0015]
【実施例１】以下において、詳細な実施例について説明
する。[First Embodiment] A detailed embodiment will be described below.
【００１６】（実施例１）表１に示すように、制御弁式
鉛蓄電池の温度が高いほど、定電流充電時において充電
を終了させる電流値（表１で、充電終了電流値と記載し
た。）を低くして寿命試験をした。その他の寿命試験条
件等は上記したものである。(Example 1) As shown in Table 1, the higher the temperature of the control valve type lead storage battery, the more the current value at which charging is terminated during constant current charging (in Table 1, described as the charging end current value). ) Was lowered and the life test was performed. Other life test conditions and the like are as described above.
【００１７】（比較例１）表１に示すように、制御弁式
鉛蓄電池の温度にかかわらず、定電流充電時において充
電を終了させる電流値を０．００３ＣＡとして寿命試験
をした。その他の寿命試験条件等は上記したものであ
る。(Comparative Example 1) As shown in Table 1, a life test was conducted with a current value of 0.003 CA for terminating the charging during constant-current charging regardless of the temperature of the control valve type lead storage battery. Other life test conditions and the like are as described above.
【００１８】（比較例２）表１に示すように、制御弁式
鉛蓄電池の温度にかかわらず、定電流充電時において充
電を終了させる電流値を０．０１６ＣＡとして寿命試験
をした。その他の寿命試験条件等は上記したものであ
る。(Comparative Example 2) As shown in Table 1, a life test was conducted with a current value of 0.016 CA for terminating the charging during constant-current charging regardless of the temperature of the control valve type lead storage battery. Other life test conditions and the like are as described above.
【００１９】これらの充電方式を用いて、寿命試験をし
た結果を表１に示す。本発明を用いると、比較的簡単な
充電方式を用いているにもかかわらず、制御弁式鉛蓄電
池を長寿命化することができる。Table 1 shows the result of a life test using these charging methods. According to the present invention, it is possible to extend the life of the valve-regulated lead-acid battery despite using a relatively simple charging method.
【００２０】なお、比較例１は、充電終了電流値が低い
ために充電量が多くなり、格子腐食が大きいことや、充
電に要する時間も長くなるため好ましくない。また、比
較例２の場合には、充電終了電流値が高いため充電量が
少なくなり、負極活物質が不活性化して容量低下が生じ
たものと考えられる。Comparative Example 1 is not preferable because the charge end current value is low, so that the charge amount is large, the lattice corrosion is large, and the time required for charging is long. In the case of Comparative Example 2, it is considered that the charging end current value was high and thus the charging amount was small, and the negative electrode active material was inactivated and the capacity was decreased.
【００２１】[0021]
【表１】 [Table 1]
【００２２】（実施例２）制御弁式鉛蓄電池の温度が高
いほど、充電を終了させる電流値を指数関数的に減少さ
せて寿命試験をした。すなわち、実施例２では、（２）
式に示すように、環境温度が高いほど、充電を終了させ
る電流値を指数関数的に減少させるようにした。(Example 2) As the temperature of the valve regulated lead-acid battery was higher, the current value for ending the charging was exponentially decreased and a life test was conducted. That is, in the second embodiment, (2)
As shown in the formula, the higher the ambient temperature, the exponentially decreasing the current value for ending the charging.
【００２３】
充電終了電流値（ＣＡ）＝０．０１×ｅ（ａ×（Ｔ−２５）） （２
）式
ここで、実施例２では、ａの値として（−０．０２３）
として、寿命試験をした結果を表２に示す。本発明に係
わる充電方式を用いると、制御弁式鉛蓄電池をさらに長
寿命化することができる。なお、さらなる検討によっ
て、（２）式のａの値として（−０．０２５〜−０．０
２０）の範囲でも、同様の良好な結果が得られ好ましい
ことがわかった。Charging end current value (CA) = 0.01 × e (ax × (T−25)) (2) Formula Here, in Example 2, the value of a was (−0.023).
Table 2 shows the result of the life test. By using the charging system according to the present invention, it is possible to further extend the life of the control valve type lead storage battery. As a result of further study, as the value of a in the equation (2) (-0.025 to -0.0
In the range of 20) as well, it was found that the same good result was obtained and it was preferable.
【００２４】なお、本実施例では、１個の制御弁式鉛蓄
電池の温度を測定して充電制御に用いているが、複数個
の制御弁式鉛蓄電池の温度を測定して充電制御に用いる
こともできることは言うまでもない。In this embodiment, the temperature of one control valve type lead storage battery is measured and used for charging control, but the temperature of a plurality of control valve type lead storage batteries is measured and used for charging control. It goes without saying that you can also do things.
【００２５】[0025]
【表２】 [Table 2]
【００２６】[0026]
【発明の効果】上述したように、本発明に係わる充電方
式を用いると、制御弁式鉛蓄電池を長寿命化することが
できるために工業上優れたものである。As described above, the use of the charging system according to the present invention is industrially excellent because the control valve type lead storage battery can have a long life.
【図１】本発明に係わる充電方式を示す概略図である。FIG. 1 is a schematic diagram showing a charging system according to the present invention.
【図２】実施例２の制御弁式鉛蓄電池の温度と、充電を
終了させる電流値の関係である。FIG. 2 is a relationship between the temperature of the control valve type lead-acid battery of Example 2 and a current value at which charging is terminated.
【図３】従来の充電方式を示す概略図である。FIG. 3 is a schematic diagram showing a conventional charging method.
【図４】本発明に係わる充電器のブロック図である。FIG. 4 is a block diagram of a charger according to the present invention.
１：商用電源、２：充電器、３：コントロール部、４：
電源部、５：温度センサ、６：制御弁式鉛蓄電池、７：
電圧計、８：電流計1: Commercial power supply, 2: Charger, 3: Control unit, 4:
Power supply section, 5: temperature sensor, 6: control valve type lead-acid battery, 7:
Voltmeter, 8: Ammeter
Claims (3)
し、一定電圧に達した後は定電圧充電をし、前記定電圧
充電時の電流値から充電の終了を判断する制御弁式鉛蓄
電池の充電方式であって、前記電流値は制御弁式鉛蓄電
池の温度が高いほど小さくすることを特徴とする制御弁
式鉛蓄電池の充電方式。1. A control valve type lead which is charged to a constant voltage with a constant current or a quasi-constant current, is charged with a constant voltage after reaching a constant voltage, and judges the end of charging from the current value during the constant voltage charging. A charging method for a storage battery, wherein the current value is reduced as the temperature of the control valve lead storage battery is higher.
温度が高いほど、指数関数的に低くすることを特徴とす
る請求項１記載の制御弁式鉛蓄電池の充電方式。2. The charging method for a control valve type lead storage battery according to claim 1, wherein the current value is set to decrease exponentially as the battery temperature of the control valve type lead storage battery increases.
池温度が高いほど、低くすることを特徴とする請求項１
又は２記載の制御弁式鉛蓄電池の充電方式。3. The constant voltage is lowered as the battery temperature of the control valve type lead storage battery is higher.
Alternatively, the control valve type lead-acid battery charging method described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002023115A JP2003223935A (en) | 2002-01-31 | 2002-01-31 | Charging method of control valve lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002023115A JP2003223935A (en) | 2002-01-31 | 2002-01-31 | Charging method of control valve lead storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003223935A true JP2003223935A (en) | 2003-08-08 |
Family
ID=27745914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002023115A Pending JP2003223935A (en) | 2002-01-31 | 2002-01-31 | Charging method of control valve lead storage battery |
Country Status (1)
| Country | Link |
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| JP (1) | JP2003223935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008204867A (en) * | 2007-02-21 | 2008-09-04 | Sanyo Electric Co Ltd | Battery pack |
| JP2010187472A (en) * | 2009-02-12 | 2010-08-26 | Nikon Corp | Charge control apparatus and camera |
| JP2014535037A (en) * | 2011-09-30 | 2014-12-25 | ケーピーアイティ テクノロジーズ リミテッド | System and method for battery monitoring |
-
2002
- 2002-01-31 JP JP2002023115A patent/JP2003223935A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008204867A (en) * | 2007-02-21 | 2008-09-04 | Sanyo Electric Co Ltd | Battery pack |
| JP2010187472A (en) * | 2009-02-12 | 2010-08-26 | Nikon Corp | Charge control apparatus and camera |
| JP2014535037A (en) * | 2011-09-30 | 2014-12-25 | ケーピーアイティ テクノロジーズ リミテッド | System and method for battery monitoring |
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