JPH0652899A - Method for charging storage battery having nickel electrode - Google Patents
Method for charging storage battery having nickel electrodeInfo
- Publication number
- JPH0652899A JPH0652899A JP4201510A JP20151092A JPH0652899A JP H0652899 A JPH0652899 A JP H0652899A JP 4201510 A JP4201510 A JP 4201510A JP 20151092 A JP20151092 A JP 20151092A JP H0652899 A JPH0652899 A JP H0652899A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- temperature
- battery
- reached
- current
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 13
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000284 resting effect Effects 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
【０００１】[0001]
【産業上の利用分野】本発明は、ニッケル極を有する蓄
電池の充電方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of charging a storage battery having a nickel electrode.
【０００２】[0002]
【従来の技術】ニッケル極を有した代表的な蓄電池とし
て、従来から広く用いられているニッケル−カドミウム
蓄電池、或いは軽量且つ、高容量で高エネルギー密度と
なる可能性があると言うことで近年、注目されているニ
ッケル−水素蓄電池等の蓄電池をあげることができる。2. Description of the Related Art As a typical storage battery having a nickel electrode, a nickel-cadmium storage battery which has been widely used in the past, or a lightweight battery having a high capacity and a high energy density, has recently been developed. A storage battery such as a nickel-hydrogen storage battery that has been receiving attention can be given.
【０００３】これらの電池の充電方法としては、一定の
高電流で充電を行う高率充電と、一定の低電流で充電を
行う低率充電がある。As a method of charging these batteries, there are a high rate charge for charging with a constant high current and a low rate charge for charging with a constant low current.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記それぞ
れの充電方法を行うと以下のような問題が生じる。即
ち、高率充電を行った場合、図６に示すように、充電時
間は短いが、電池温度が上昇してしまい、この温度上昇
により充電効率が低下してしまうという問題が生じる。
このように充電効率が低下するのは、温度が上昇する
と、充電を行った際に、ニッケル極において、酸素発生
反応が起こり易くなってしまうためである。However, the following problems occur when each of the above charging methods is performed. That is, when high-rate charging is performed, as shown in FIG. 6, although the charging time is short, the battery temperature rises, which causes a problem that the charging efficiency decreases due to the temperature rise.
The reason why the charging efficiency is lowered as described above is that when the temperature rises, the oxygen generation reaction easily occurs in the nickel electrode during charging.
【０００５】一方、低率充電の場合は、図７に示すよう
に低電流で充電を行うため温度上昇も少なく充電効率は
よいと考えられるが、充電時間が長時間かかってしまう
という問題がある。本発明は、上記問題点に鑑み、充電
効率がよく、しかも充電時間の短い充電方法を提供する
ことを目的とする。On the other hand, in the case of low rate charging, since charging is performed with a low current as shown in FIG. 7, it is considered that the temperature rise is small and the charging efficiency is good, but there is a problem that the charging time takes a long time. . In view of the above problems, it is an object of the present invention to provide a charging method that has good charging efficiency and a short charging time.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明では、ニッケル極を有する蓄電池の充電にお
いて、電池温度が所定の温度に達するまでは高電流で充
電を行う第一のステップと、上記第一のステップに続い
て、電池温度が当該所定の温度に達すると当該温度を保
つように電流値を変化させながら充電を行う第二のステ
ップとを実行することを特徴とする。In order to achieve the above object, in the present invention, in the charging of a storage battery having a nickel electrode, the first step of charging with a high current until the battery temperature reaches a predetermined temperature. Then, after the first step, when the battery temperature reaches the predetermined temperature, the second step of performing charging while changing the current value so as to maintain the temperature is performed.
【０００７】[0007]
【作用】上記のような充電を行うことにより、以下のよ
うな作用が生じる。第一のステップは、高電流で充電を
行うため、充電の進行が早く充電時間が短縮され、しか
も、充電効率のよい所望の温度に到達する時間も短時間
になる。また、第二のステップにおいては、充電電流を
変化させることによって所定の温度に電池温度を保つこ
とができるため、この所定の温度を、充電効率のよい温
度に設定することで、全体として充電効率のよい充電を
行うことができる。By performing the above charging, the following actions occur. In the first step, since charging is performed with a high current, the charging progresses quickly and the charging time is shortened, and the time required to reach the desired temperature with good charging efficiency is also short. Further, in the second step, the battery temperature can be maintained at a predetermined temperature by changing the charging current. Therefore, by setting the predetermined temperature to a temperature at which the charging efficiency is good, the charging efficiency as a whole can be improved. It is possible to perform good charging.
【０００８】[0008]
（実施例１）図１に充電制御の装置を示す図であり、図
中、１は充電を行う密閉据置型ニッケル−水素アルカリ
蓄電池である。２は温度モニターであり、上記蓄電池１
の表面に取り付けられており、電池温度を測定するもの
である。(Embodiment 1) FIG. 1 is a diagram showing a charging control device, in which 1 is a sealed stationary nickel-hydrogen alkaline storage battery for charging. 2 is a temperature monitor, and the storage battery 1
It is attached to the surface of and measures the battery temperature.
【０００９】４は制御部であり、上記温度モニターから
受け取った電池温度の情報に基づいて、電流の変化量を
算出するものである。３は充電電源であり、制御部から
の受け取った情報を基に、充電電流を出力するものであ
る。上記構成の装置を用いた充電制御の動作を図２のフ
ローチャートに沿って以下に説明する。A control unit 4 calculates the amount of change in current based on the battery temperature information received from the temperature monitor. A charging power source 3 outputs a charging current based on the information received from the control unit. The operation of charge control using the device having the above configuration will be described below with reference to the flowchart of FIG.
【００１０】先ず、一定の高電流で充電を開始する。充
電を行う際には充電開始時の電流値を最大電流値とす
る。電池温度を温度モニターで測定し、制御部４は、電
池温度が所定の設定温度Ｔ0 になったかどうか判断する
（Ｓ１）。Ｔ0 に達していなければ、そのまま充電開始
時の電流値で充電を続行する（Ｓ２）。First, charging is started with a constant high current. When charging, the current value at the start of charging is the maximum current value. The battery temperature is measured by the temperature monitor, and the control unit 4 determines whether or not the battery temperature has reached a predetermined set temperature T 0 (S1). If it has not reached T 0 , the charging is continued at the current value at the start of charging (S2).
【００１１】Ｔ0 に達した場合、タイマーをオンして
（Ｓ３）、所定の時間Δｔが経過したか判断する（Ｓ
４）。Δｔ経過すると、温度モニターは電池温度を測定
し（Ｓ５）、制御部に出力する。電池温度Ｔを受け取っ
た制御部は、当該温度Ｔを下記に示す式に当てはめ、電
流の変化値ΔＩを求め、充電電源に出力する。 ΔＩ＝（Ｔ0 −Ｔ）ＫΔｔ ΔＩ：電流変化 Ｔ0 ：設定温度 Ｔ ：測定温度 Ｋ ：定数 Δｔ：測定間隔 充電電源は、現在出力している電流をΔＩだけ変化させ
る（Ｓ６）。When T 0 is reached, the timer is turned on (S3) and it is determined whether a predetermined time Δt has passed (S3).
4). When Δt has elapsed, the temperature monitor measures the battery temperature (S5) and outputs it to the control unit. Upon receiving the battery temperature T, the control unit applies the temperature T to the formula shown below to obtain the change value ΔI of the current and outputs it to the charging power source. ΔI = (T 0 −T) K Δt ΔI: Current change T 0 : Set temperature T: Measurement temperature K: Constant Δt: Measurement interval The charging power supply changes the current output current by ΔI (S6).
【００１２】次に、電池が満充電状態になったかどうか
判断する（Ｓ７）。満充電状態であれば、充電を終了す
る。また、満充電状態でなければ、Ｓ３〜Ｓ７の処理
を、満充電状態になるまで繰り返す。具体的な例とし
て、図３に公称容量５０Ａｈの電池を、設定温度３５℃
で、充電開始電流値を２Ｃとした場合の充電時間、電流
値、及び、電池温度変化を示した。尚、電池が満充電状
態になったかどうかは、電流値が１Ｃまで減少したかど
うかで判定した。Next, it is determined whether or not the battery is fully charged (S7). If the battery is fully charged, charging ends. If not in the fully charged state, the processes of S3 to S7 are repeated until the fully charged state is reached. As a specific example, a battery having a nominal capacity of 50 Ah is set in FIG.
The charging time, the current value, and the battery temperature change when the charging start current value is 2C are shown. It should be noted that whether or not the battery was fully charged was determined by whether or not the current value decreased to 1C.
【００１３】２Ｃの一定電流で高率充電を電池温度が３
５℃になるまで行い、その後、電池温度が３５℃を保つ
ように、電流値を変化させることにより、充電効率がよ
く、しかも短時間で充電を行うことができた。また、設
定温度を３５℃にしたのは、上記と同様の公称容量５０
Ａｈの電池を一定電流で充電した場合、図４に示すよう
に充放電効率が一番よい温度が３５℃であったためであ
る（充放電条件：０．２Ｃで１２０％まで充電後、２５
℃で０．８Ｖまで放電を行う。）。次に、充電を行うた
めの、良好温度範囲を決定するために、以下のような実
験をおこなった。 （実験）本発明の充電方法を用い、高率充電後の充電時
の温度を、２０℃〜５０℃まで５℃づつ変化させた場合
の、それぞれの温度における充電に要した時間と、放電
容量とを測定したので、その結果を図５に示す。High rate charging with a constant current of 2 C and battery temperature of 3
The charging was performed until the temperature reached 5 ° C., and then the current value was changed so that the battery temperature was kept at 35 ° C., so that the charging efficiency was good and the charging could be performed in a short time. Also, the set temperature was set to 35 ° C because the same nominal capacity of 50
This is because, when the Ah battery was charged at a constant current, the temperature at which the charging / discharging efficiency was the best was 35 ° C. as shown in FIG. 4 (charging / discharging condition: 25% after charging to 120% at 0.2 C).
Discharge to 0.8 V at ℃. ). Next, the following experiment was conducted in order to determine a good temperature range for charging. (Experiment) Using the charging method of the present invention, the time required for charging at each temperature and the discharge capacity when the temperature during charging after high-rate charging was changed by 5 ° C from 20 ° C to 50 ° C And were measured, and the results are shown in FIG.
【００１４】実験条件としては、２Ｃの電流値で充電を
開始し、電池温度がそれぞれの設定温度に達すると、電
池温度が当該温度を保つように充電電流を制御しながら
電流値が１Ｃになるまで充電を行い、休止一時間後０．
１Ｃで０．８Ｖまで放電した。図５から明らかなよう
に、４０℃を超えると急激に放電容量が減少している。
これは、温度上昇により、充電効率が低下したためであ
ると考えられる。As an experimental condition, when charging is started at a current value of 2C and the battery temperature reaches each set temperature, the current value becomes 1C while controlling the charging current so that the battery temperature maintains the temperature. Charging for up to 1 hour after resting for 0.
It was discharged to 0.8 V at 1C. As is clear from FIG. 5, the discharge capacity sharply decreases above 40 ° C.
It is considered that this is because the charging efficiency decreased due to the temperature increase.
【００１５】一方、２０℃になると、充電電流を低電流
に抑えなければ成らないため充電時間が長くなってしま
う。従って、充電時の温度としては、充電時間が短く、
且つ、放電容量も大きい２５℃〜４０℃の範囲が望まし
い。 （その他の事項）上記実施例では、ニッケル−水素アル
カリ蓄電池についての充電を行ったが、本発明の充電方
法はニッケル−カドミウム蓄電池等、他のニッケル極を
有した蓄電池の充電の際にも行うことができる。但し、
その際の充電最適温度は電池の種類によって異なると考
えられる。On the other hand, at 20 ° C., the charging current must be suppressed to a low current, and the charging time becomes long. Therefore, as the temperature during charging, the charging time is short,
Moreover, the range of 25 ° C. to 40 ° C. in which the discharge capacity is large is desirable. (Other matters) Although the nickel-hydrogen alkaline storage battery was charged in the above embodiment, the charging method of the present invention is also performed when charging a storage battery having another nickel electrode such as a nickel-cadmium storage battery. be able to. However,
The optimal charging temperature at that time is considered to vary depending on the type of battery.
【００１６】また、上記実施例では、制御の方式として
比例制御を用いたが、オンオフ制御、ＰＩＤ制御、ファ
ジー制御等によっても同様の効果が得られる。Further, although the proportional control is used as the control method in the above embodiment, the same effect can be obtained by the on / off control, the PID control, the fuzzy control and the like.
【００１７】[0017]
【発明の効果】以上説明したように、本発明によれば、
充電時間が短く、しかも充電効率の高い優れた充電方法
を提供できる。As described above, according to the present invention,
An excellent charging method with short charging time and high charging efficiency can be provided.
【図１】本発明の充電制御の装置を示す図である。FIG. 1 is a diagram showing a charging control device of the present invention.
【図２】充電制御動作のフローチャートである。FIG. 2 is a flowchart of a charge control operation.
【図３】本発明の充電方法を３５℃で行った場合のグラ
フである。FIG. 3 is a graph when the charging method of the present invention is performed at 35 ° C.
【図４】一定電流で、充電を行った際の電池温度と充放
電効率の関係を図である。FIG. 4 is a diagram showing the relationship between battery temperature and charge / discharge efficiency when charging is performed at a constant current.
【図５】本発明の充電方法をおこなった際の、充電温度
と放電容量および充電時間の関係を示すグラフである。FIG. 5 is a graph showing the relationship between charging temperature, discharge capacity and charging time when the charging method of the present invention was performed.
【図６】高率充電の電池温度変化を示すグラフである。FIG. 6 is a graph showing changes in battery temperature during high rate charging.
【図７】低率充電の電池温度変化を示すグラフである。FIG. 7 is a graph showing changes in battery temperature during low rate charging.
１ 蓄電池 ２ 温度モニター ３ 制御部 ４ 充電電源 1 Storage battery 2 Temperature monitor 3 Control unit 4 Charging power source
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水瀧 房吾 守口市京阪本通２丁目18番地 三洋電機株 式会社内 (72)発明者 西尾 晃治 守口市京阪本通２丁目18番地 三洋電機株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shogo Mizutaki 2-18 Keihan Hondori Moriguchi City Sanyo Electric Co., Ltd. (72) Inventor Koji Nishio 2-18 Keiyo Hondori Moriguchi City Sanyo Electric Co., Ltd. Inside the company
Claims (1)
て、 電池温度が所定の温度に達するまでは高電流で充電を行
う第一のステップと、 上記第一のステップに続いて、電池温度が当該所定の温
度に達すると当該温度を保つように電流値を変化させな
がら充電を行う第二のステップとを実行することを特徴
とするニッケル極を有する蓄電池の充電方法。1. In charging a storage battery having a nickel electrode, a first step of charging with a high current until the battery temperature reaches a predetermined temperature, and following the first step, the battery temperature is changed to the predetermined temperature. And a second step of performing charging while changing the current value so as to maintain the temperature when the temperature is reached, the method of charging a storage battery having a nickel electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201510A JPH0652899A (en) | 1992-07-28 | 1992-07-28 | Method for charging storage battery having nickel electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201510A JPH0652899A (en) | 1992-07-28 | 1992-07-28 | Method for charging storage battery having nickel electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0652899A true JPH0652899A (en) | 1994-02-25 |
Family
ID=16442246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4201510A Pending JPH0652899A (en) | 1992-07-28 | 1992-07-28 | Method for charging storage battery having nickel electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652899A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006073406A (en) * | 2004-09-03 | 2006-03-16 | Sanyo Electric Co Ltd | Charging method |
| JP2006278032A (en) * | 2005-03-28 | 2006-10-12 | Matsushita Electric Works Ltd | Charging device and rechargeable electric tool set |
-
1992
- 1992-07-28 JP JP4201510A patent/JPH0652899A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006073406A (en) * | 2004-09-03 | 2006-03-16 | Sanyo Electric Co Ltd | Charging method |
| JP2006278032A (en) * | 2005-03-28 | 2006-10-12 | Matsushita Electric Works Ltd | Charging device and rechargeable electric tool set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3216133B2 (en) | Non-aqueous electrolyte secondary battery charging method | |
| JP2771036B2 (en) | Method and apparatus for charging, defrosting and formatting a storage battery | |
| WO1997015977A1 (en) | Constant-current/constant-voltage battery charger | |
| JP2003132955A (en) | Charge / discharge method for non-aqueous electrolyte secondary battery | |
| JP3509382B2 (en) | Charge control system | |
| JPH02192670A (en) | charging device | |
| EP0445180A1 (en) | System and method for rapid charging of a battery. | |
| JPH0984277A (en) | Battery charge control method and device | |
| JP3306188B2 (en) | Rechargeable battery charging method | |
| JP4221636B2 (en) | Lithium ion secondary battery charging method and charging device | |
| JP2003189498A (en) | Charging method and charger of secondary battery | |
| JP3508254B2 (en) | Rechargeable battery charger | |
| JP3707636B2 (en) | Charge control method and charge control device | |
| JP3430439B2 (en) | Secondary battery charging method and secondary battery charging device | |
| JPH07296854A (en) | Charging method and charging device | |
| JP3742137B2 (en) | How to charge the battery | |
| JPH11215731A (en) | Lithium ion battery charging device and charging method | |
| JP2903954B2 (en) | Rechargeable battery charger | |
| JPH11150882A (en) | How to charge the battery | |
| JP3107407B2 (en) | How to charge the battery pack | |
| JP3133220B2 (en) | Charge control device for sealed battery | |
| JP2000209789A (en) | Rechargeable battery charge / discharge control device | |
| JP3328025B2 (en) | Charging device | |
| JP2004171795A (en) | Charging device | |
| JP2890829B2 (en) | How to charge a sealed lead-acid battery |