JPH09259934A - Secondary battery pack and secondary battery charging voltage detection method - Google Patents
Secondary battery pack and secondary battery charging voltage detection methodInfo
- Publication number
- JPH09259934A JPH09259934A JP8070408A JP7040896A JPH09259934A JP H09259934 A JPH09259934 A JP H09259934A JP 8070408 A JP8070408 A JP 8070408A JP 7040896 A JP7040896 A JP 7040896A JP H09259934 A JPH09259934 A JP H09259934A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- secondary battery
- terminal
- voltage
- diode
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
(57)【要約】
【課題】 煩雑な構成を回避しながら、また二次電池の
外部短絡を防止できる二次電池パック、および二次電池
の充電電圧検出方法の提供。
【解決手段】 二次電池パック２は、外装体と、前記外
装体内に収納・装着された複数個の二次電池セル2aと、
前記二次電池セル2a間を電気的に接続する電気回路と、
前記電気回路に一端がそれぞれ接続し外装体外に導出さ
れて充電電力を供給・充電する一対の充電端子2b，2b′
と、前記充電端子2bの一端側へ並列に介挿されたダイオ
ード2cおよび抵抗器2d′とを具備することを特徴とす
る。また、二次電池の充電電圧検出方法は、二次電池２
に充電端子2b，2b′を介して充電電力を供給・充電する
過程での充電電圧検出方法であって、前記二次電池２と
充電端子2bとの間にダイオード2cおよび抵抗器2d′を並
列に接続して充電電力をパルスで供給し、充電電力のオ
フ時に二次電池２の充電電圧を検出することを特徴とす
る。
(57) [Abstract] [PROBLEMS] To provide a secondary battery pack and a method of detecting a charging voltage of a secondary battery that can prevent an external short circuit of the secondary battery while avoiding a complicated configuration. A secondary battery pack (2) includes an outer package, and a plurality of secondary battery cells (2a) housed and mounted in the outer package.
An electric circuit electrically connecting between the secondary battery cells 2a,
A pair of charging terminals 2b, 2b 'which are connected to the electric circuit at one end and are led out of the exterior body to supply / charge charging power.
And a diode 2c and a resistor 2d 'which are inserted in parallel to one end side of the charging terminal 2b. In addition, the method for detecting the charging voltage of the secondary battery is
A method of detecting a charging voltage in the process of supplying and charging charging power to a charging terminal 2b, 2b 'via a charging terminal 2b, 2b', wherein a diode 2c and a resistor 2d 'are arranged in parallel between the secondary battery 2 and the charging terminal 2b. And charging power is supplied in pulses, and the charging voltage of the secondary battery 2 is detected when the charging power is off.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は二次電池パック、お
よび二次電池の充電電圧検出方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary battery pack and a secondary battery charging voltage detection method.
【０００２】[0002]
【従来の技術】ニッケル−水素二次電池、ニッケル−カ
ドミウムあるいはリチウムイオン二次電池などに代表さ
れる二次電池は、充電による電力の貯蔵、この貯蔵した
電力を負荷の駆動源（放電）とする繰り返し動作が可能
な電源として、たとえば携帯用電話機や携帯型撮像機な
ど各種の機器システムに組み込まれて実用されている。
ところで、二次電池はいずれの場合も、充電および放電
が主要な機能であり、また、効率および安全性の点から
充電の終止電圧，放電の終止電圧をそれぞれ限界とし、
この限界範囲内の電圧で充電や放電を行っている。そし
て、二次電池の充電方法として、定電流充電（定電流モ
ード）および定電圧充電（定電圧モード）を組み合わせ
た方式なども知られている。2. Description of the Related Art A secondary battery typified by a nickel-hydrogen secondary battery, a nickel-cadmium or lithium-ion secondary battery, stores electric power by charging, and uses the stored electric power as a drive source (discharge) for a load. As a power source that can be repeatedly operated, it has been put into practical use by being incorporated in various device systems such as a mobile phone and a portable image pickup device.
By the way, in any case, the secondary battery has a main function of charging and discharging, and from the viewpoint of efficiency and safety, the end voltage of charging and the end voltage of discharging are respectively set as limits,
Charging and discharging are performed with a voltage within this limit range. As a method of charging the secondary battery, a method in which constant current charging (constant current mode) and constant voltage charging (constant voltage mode) are combined is known.
【０００３】いずれにしても、この種の二次電池や二次
電池パックを、より有効で信頼性の高い電源として利用
するに当たっては、常に、適正な充電電圧の充電が行わ
れることが前提となるので、充電過程で二次電池の充電
電圧を検出・検知している。たとえばリチウムイオン電
池パックの充電に当たっては、図３に概略構成を示すよ
うな回路によって、充電電力を供給しながら電池電圧を
検出している。図３において、１は充電器で、入力電源
1a，1a′、充電主回路1b、充電制御回路1cおよび接続端
子1d，1d′を具備した構成と成っている。また、２は二
次電池パックで、電池セル2aおよび充電端子2b，2b′を
具備した構成と成っている。ここで、充電端子2bは充電
電力を供給側とし、充電端子2b′は GND側として作用す
る。このリチウムイオン電池パック２の充電では、充電
主回路1bを介して供給される充電電力によって、電池パ
ック２の充電が進行する時点では充電器１の接続端子1
d，1d′側での電池電圧検出に対応し、充電制御回路1c
で充電主回路1bを制御する。 しかし、前記電池パック
２の構成では、充電端子が電池パック２端子を兼用する
形を採っているため、機器類の接続端子と接続する際に
短絡など起こし、事故を発生する恐れがある。In any case, in using this type of secondary battery or secondary battery pack as a more effective and highly reliable power source, it is premised that charging is always performed at an appropriate charging voltage. Therefore, the charging voltage of the secondary battery is detected and detected during the charging process. For example, when charging a lithium ion battery pack, a battery voltage is detected while supplying charging power by a circuit whose schematic configuration is shown in FIG. In FIG. 3, reference numeral 1 is a charger, which is an input power source.
1a and 1a ', a charging main circuit 1b, a charging control circuit 1c, and connection terminals 1d and 1d'. Reference numeral 2 denotes a secondary battery pack, which is configured to include a battery cell 2a and charging terminals 2b and 2b '. Here, the charging terminal 2b acts as a charging power supply side, and the charging terminal 2b 'acts as a GND side. In charging the lithium-ion battery pack 2, at the time when the charging of the battery pack 2 proceeds by the charging power supplied via the charging main circuit 1b, the connection terminal 1 of the charger 1
Supports battery voltage detection on the d and 1d ′ sides, charging control circuit 1c
Controls the charging main circuit 1b. However, in the configuration of the battery pack 2, since the charging terminal also serves as the battery pack 2 terminal, a short circuit or the like may occur at the time of connection with the connection terminal of the device, which may cause an accident.
【０００４】この短絡事故の防止策として、図４に概略
構成を示すように充電回路を変更し、かつ電池パック２
と充電端子2bとの間にダイオード2cを介挿する一方、抵
抗器2dを介して電圧検出用端子2b″を別に設置して、充
電中の電池電圧を検出することも試みられている。な
お、この電圧検出用端子2b″で検出した電池電圧は、対
応して充電器１に別設された接続端子1d″介して充電制
御回路1cにフィードバックされ、充電主回路1bを制御し
て充電の制御を行う構成を採っている。As a measure for preventing this short circuit accident, the charging circuit is changed as shown in the schematic configuration of FIG.
It is also attempted to insert a diode 2c between the charging terminal 2b and the charging terminal 2b, and separately install a voltage detection terminal 2b ″ via a resistor 2d to detect the battery voltage during charging. The battery voltage detected at the voltage detection terminal 2b ″ is fed back to the charging control circuit 1c through the corresponding connection terminal 1d ″ separately provided in the charger 1 to control the charging main circuit 1b to charge the battery. It adopts a configuration for controlling.
【０００５】[0005]
【発明が解決しようとする課題】前記したように、従来
の二次電池充電過程における一般的な電池電圧検出方法
の場合は、二次電池の実用段階で外部短絡し、事故の発
生が懸念されるという問題があり、また、電圧検出用端
子2b″を別設することは、その分充電器１の回路構成、
および電池パック２の構造が複雑化することになる。つ
まり、短絡の問題を全面的に回避しようとすると、一方
では充電回路や電池パック２の構成が複雑もしくは煩雑
化して、結果的にコストアップなど招来するという問題
がある。As described above, in the case of the general battery voltage detecting method in the conventional secondary battery charging process, there is a concern that an external short circuit may occur at the practical stage of the secondary battery and an accident may occur. There is a problem that the voltage detection terminal 2b ″ is separately provided, and accordingly, the circuit configuration of the charger 1 is
And the structure of the battery pack 2 becomes complicated. In other words, if the problem of short circuit is to be totally avoided, on the other hand, the structure of the charging circuit and the battery pack 2 becomes complicated or complicated, resulting in an increase in cost.
【０００６】本発明は上記事情に対処してなされたもの
で、煩雑な構成を回避しながら、また二次電池の外部短
絡を防止できる二次電池パック、および二次電池の充電
電圧検出方法の提供を目的とする。The present invention has been made in consideration of the above circumstances, and provides a secondary battery pack capable of preventing an external short circuit of the secondary battery while avoiding a complicated structure, and a charging voltage detecting method for the secondary battery. For the purpose of provision.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、外装
体と、前記外装体内に収納・装着された複数個の二次電
池セルと、前記二次電池セル間を電気的に接続する電気
回路と、前記電気回路に一端がそれぞれ接続し外装体外
に導出されて充電電力を供給・充電する一対の充電端子
と、前記充電端子の一端側へ並列に介挿されたダイオー
ドおよび抵抗器とを具備することを特徴とする二次電池
パックである。According to a first aspect of the invention, an exterior body, a plurality of secondary battery cells housed and mounted in the exterior body, and the secondary battery cells are electrically connected. An electric circuit, a pair of charging terminals each having one end connected to the electric circuit and being led out of the exterior body to supply / charge charging power, and a diode and a resistor inserted in parallel to one end side of the charging terminal. It is a secondary battery pack comprising:
【０００８】上記二次電池パックの発明は、充電端子と
電池セル群の端子との間に、外部短絡防止用のダイオー
ドを介挿する一方、これと並列に抵抗器を介挿して、前
記充電端子に電池電圧検出機能を併せて持たせたことを
骨子とするものである。In the invention of the secondary battery pack, a diode for preventing an external short circuit is inserted between the charging terminal and the terminal of the battery cell group, and a resistor is inserted in parallel with the diode to prevent the external charging. The essence is that the terminals also have a battery voltage detection function.
【０００９】請求項２の発明は、二次電池に充電端子を
介して充電電力を供給・充電する過程での充電電圧検出
方法であって、前記二次電池と充電端子との間にダイオ
ードおよび抵抗器を並列に接続して充電電力をパルスで
供給し、充電電力のオフ時に二次電池の充電電圧を検出
することを特徴とする二次電池の充電電圧検出方法であ
る。According to a second aspect of the present invention, there is provided a charging voltage detecting method in the process of supplying and charging charging power to the secondary battery through the charging terminal, wherein a diode and a diode are provided between the secondary battery and the charging terminal. A charging voltage detection method for a secondary battery, comprising connecting resistors in parallel to supply charging power in pulses and detecting the charging voltage of the secondary battery when the charging power is off.
【００１０】請求項３の発明は、外装体、前記外装体内
に収納・装着された複数個の二次電池セル、前記二次電
池セル間を電気的に接続する電気回路、前記電気回路に
一端がそれぞれ接続し外装体外に導出されて充電電力を
パルスで供給・充電する一対の充電端子、および前記充
電端子の一端側へ並列に介挿されたダイオードおよび抵
抗器を具備する二次電池パックに充電端子を介して充電
電力をパルスで供給・充電する過程での充電電圧検出方
法であって、前記充電電力のオフ時に二次電池パックの
充電電圧を検出することを特徴とする二次電池パックの
充電電圧検出方法である。According to a third aspect of the present invention, an outer package, a plurality of secondary battery cells housed and mounted in the outer package, an electric circuit for electrically connecting the secondary battery cells, and one end of the electric circuit To a secondary battery pack having a pair of charging terminals that are connected to each other and are supplied to the outside of the exterior body to supply / charge the charging power in pulses, and a diode and a resistor that are inserted in parallel to one end side of the charging terminals. A method for detecting a charging voltage in the process of supplying / charging charging power in pulses through a charging terminal, wherein the charging voltage of the secondary battery pack is detected when the charging power is off. Is a charging voltage detection method.
【００１１】すなわち、上記充電電圧検出方法の発明
は、いわゆる二次電池セルもしくは電池セル群の端子と
充電端子との間に、外部短絡防止用のダイオード並列に
介挿されたダイオードおよび抵抗器を介して充電電力を
パルスで供給し、前記の充電電力がオフのとき、このオ
フ時における電池電圧を、前記の充電端子で検出するこ
とを骨子としたものである。That is, the invention of the above-mentioned charging voltage detecting method includes a diode and a resistor inserted in parallel between the terminals of a so-called secondary battery cell or battery cell group and the charging terminal in order to prevent external short circuit. The main purpose is to supply the charging power in a pulsed manner and to detect the battery voltage when the charging power is off at the charging terminal when the charging power is off.
【００１２】請求項１の発明では、電池パック自体が電
池セル群の端子と充電端子との間にダイオードおよび抵
抗器を並列に具備しているため、充電電力がダイオード
を介して供給・充電される一方、このダイオードの介挿
によって電池の外部短絡事故発生が防止される。また、
パルスで供給される充電電力がオフの時点で、並列に接
続された抵抗器を介して充電電力が入力する充電端子
で、容易に電池電圧が検出される。In the invention of claim 1, since the battery pack itself has the diode and the resistor in parallel between the terminal of the battery cell group and the charging terminal, the charging power is supplied and charged through the diode. On the other hand, the insertion of this diode prevents the occurrence of an external short circuit accident of the battery. Also,
When the charging power supplied by the pulse is off, the battery voltage is easily detected at the charging terminal to which the charging power is input via the resistor connected in parallel.
【００１３】請求項２および３の発明では、充電器の端
子と電池の充電端子との間にダイオードおよび抵抗器を
並列に具備しているため、充電電力がダイオードを介し
て供給・充電される一方、このダイオードの介挿によっ
て電池の外部短絡事故発生が防止される。また、パルス
で供給される充電電力がオフの時点で、並列に接続され
た抵抗器を介して充電電力が入力する充電端子で、容易
に電池電圧が検出されるため、適正で再現性のよい充電
を行うことができる。According to the second and third aspects of the present invention, since the diode and the resistor are provided in parallel between the terminal of the charger and the charging terminal of the battery, charging power is supplied / charged through the diode. On the other hand, the insertion of this diode prevents the occurrence of an external short circuit accident of the battery. Further, when the charging power supplied by the pulse is off, the battery voltage is easily detected at the charging terminal to which the charging power is input via the resistor connected in parallel, so that it is appropriate and has good reproducibility. Can be charged.
【００１４】[0014]
【発明の実施の形態】以下図１および図２を参照して実
施の形態を説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments will be described below with reference to FIGS. 1 and 2.
【００１５】図１は、本発明の充電電圧検出方法の実施
態様を説明するための充電回路図である。図１におい
て、１は充電器で、入力電源1a，1a′、充電主回路1b、
充電制御回路1cおよび接続端子1d，1d′を具備した構成
と成っている。また、２はたとえばリチウムイオン電池
パックなどの二次電池パックで、電池セル2a、充電端子
2b，2b′およびダイオード2cと抵抗器2d′との並列回路
とを具備した構成と成っている。ここで、ダイオード2c
は外部短絡防止の役割を成し、抵抗器2d′は充電電流が
オフのときに電池電圧を検出するためのものであり、ま
た、充電端子2b′は GND側として作用する。FIG. 1 is a charging circuit diagram for explaining an embodiment of the charging voltage detecting method of the present invention. In FIG. 1, reference numeral 1 is a charger, which is an input power source 1a, 1a ', a charging main circuit 1b,
The charging control circuit 1c and the connection terminals 1d and 1d 'are provided. Further, 2 is a secondary battery pack such as a lithium-ion battery pack, which includes a battery cell 2a and a charging terminal.
2b and 2b ', a diode 2c and a parallel circuit of a resistor 2d' are provided. Where diode 2c
Plays a role of preventing an external short circuit, the resistor 2d 'is for detecting the battery voltage when the charging current is off, and the charging terminal 2b' acts as a GND side.
【００１６】そして、リチウムイオン電池パック２の充
電では、充電主回路1bを介して供給されるパルス型の充
電電力によって、電池パック２の充電が進行する。すな
わち、この充電回路においては、図２模式的に示すよう
に、充電器１の充電主回路1bからパルスで充電電力が、
接続端子1d，電池パック２の充電端子2b，ダイオード2c
を介して電池セル2aに供給される。ここで、電池パック
２に充電電力が流れている（パルスで供給されている）
ときは、ダイオード2cの順方向電圧降下分と電池セル2a
の内部抵抗による電圧降下が高くなるので、充電端子2b
で正確な電圧を検出できない。一方、電池パック２に充
電電流が流れていないときには（パルスでの供給がオフ
のときには）、前記ダイオード2cの順方向電圧降下分お
よび電池セル2aの内部抵抗による電圧降下分がないた
め、抵抗器2d′を介して充電端子2bで正確な充電電圧を
検出できる。このように、充電過程で二次電池の充電電
圧を高い精度で、また、容易かつ再現性よくに測定でき
ることは、その精度の高い充電電圧検出値が充電器１の
充電制御回路1cにフィードバックされ、充電主回路1bを
適切に制御することになるため、結果的に適正な充電の
実施を可能にする。In charging the lithium ion battery pack 2, the charging of the battery pack 2 proceeds by the pulse type charging power supplied via the charging main circuit 1b. That is, in this charging circuit, as schematically shown in FIG. 2, charging power is supplied in pulses from the charging main circuit 1b of the charger 1.
Connection terminal 1d, battery pack 2 charging terminal 2b, diode 2c
Is supplied to the battery cell 2a via. Here, charging power is flowing to the battery pack 2 (supplied in pulses).
The forward voltage drop of diode 2c and battery cell 2a
Since the voltage drop due to the internal resistance of the
Can not detect the accurate voltage. On the other hand, when the charging current is not flowing in the battery pack 2 (when the supply in pulses is off), there is no forward voltage drop of the diode 2c and a voltage drop due to the internal resistance of the battery cell 2a, and therefore the resistor is used. An accurate charging voltage can be detected at the charging terminal 2b via 2d '. In this way, the charging voltage of the secondary battery can be measured with high accuracy and easily and reproducibly in the charging process, and the highly accurate charging voltage detection value is fed back to the charging control circuit 1c of the charger 1. As a result, the charging main circuit 1b is properly controlled, and as a result, proper charging can be performed.
【００１７】上記では、リチウムイオン電池パックの構
成例、リチウムイオン電池パックに対する充電過程での
充電電圧の検出例を説明したが、他の二次電池パックに
おいて同様の構成を採った場合、あるいは単一な二次電
池（電池セル）に対する充電時にける充電電圧の検出で
も同様の作用・効果が認められる。In the above description, the configuration example of the lithium ion battery pack and the detection example of the charging voltage in the charging process for the lithium ion battery pack have been described. However, when the same configuration is adopted in other secondary battery packs, The same action and effect can be recognized by detecting the charging voltage at the time of charging a secondary battery (battery cell).
【００１８】[0018]
【発明の効果】請求項１の発明によれば、電池パック自
体が電池セル群の端子と充電端子との間にダイオードお
よび抵抗器を並列に具備しているため、介挿されたダイ
オードを介して充電電力が供給・充電される一方、外部
短絡事故の発生が防止される。また、複雑な構成の充電
器を用いなくとも、容易に充電中の電池電圧を検出でき
るので、適正な充電制御が可能となり、利用効率の高い
二次電池が提供されることになる。According to the invention of claim 1, since the battery pack itself is provided with the diode and the resistor in parallel between the terminal of the battery cell group and the charging terminal, the inserted diode is interposed. While charging power is supplied and charged, the occurrence of an external short circuit accident is prevented. Further, since the battery voltage during charging can be easily detected without using a charger having a complicated structure, proper charging control can be performed, and a secondary battery with high utilization efficiency can be provided.
【００１９】請求項２および３の発明によれば、充電さ
れる二次電池，二次電池パックは、外部短絡事故発生が
防止されるだけでなく、複雑な構成の充電器を用いなく
とも、容易に充電中の電池電圧を検出できるので、適正
な充電制御が可能となる。つまり、適正で再現性のよい
充電制御によって、二次電池の利用効率向上に大きく寄
与する。According to the second and third aspects of the present invention, the secondary battery and the secondary battery pack to be charged not only prevent the occurrence of an external short-circuit accident, but do not use a charger having a complicated structure. Since the battery voltage during charging can be easily detected, proper charging control can be performed. That is, the charge control that is appropriate and has good reproducibility greatly contributes to the improvement of the utilization efficiency of the secondary battery.
【図１】実施例の充電電圧検出方法の実施態様の概略を
示す回路図。FIG. 1 is a circuit diagram showing an outline of an embodiment of a charging voltage detecting method according to an embodiment.
【図２】実施例における充電電流および充電端子部の電
圧をそれぞれ示す波形図。FIG. 2 is a waveform diagram showing a charging current and a voltage of a charging terminal portion in the example.
【図３】従来の一般的な充電電圧検出方法の実施態様の
概略を示す回路図。FIG. 3 is a circuit diagram schematically showing an embodiment of a conventional general charging voltage detecting method.
【図４】従来の他の充電電圧検出方法の実施態様の概略
を示す回路図。FIG. 4 is a circuit diagram showing an outline of an embodiment of another conventional charging voltage detecting method.
【符号の説明】 １……充電器 1a，1a′……入力電源 1b……充電主回路 1c……充電制御回路 1d，1d′，1d″……接続端子 ２……電池パック 2a……電池セル 2b，2b′……充電端子 2b″……電圧検出端子 2c……ダイオード 2d，2d′……抵抗器[Explanation of symbols] 1 …… Charger 1a, 1a ′ …… Input power supply 1b …… Charging main circuit 1c …… Charging control circuit 1d, 1d ′, 1d ″ …… Connection terminal 2 …… Battery pack 2a …… Battery Cell 2b, 2b '... Charging terminal 2b "... Voltage detection terminal 2c ... Diode 2d, 2d' ... Resistor
Claims (3)
れた複数個の二次電池セルと、前記二次電池セル間を電
気的に接続する電気回路と、前記電気回路に一端がそれ
ぞれ接続し外装体外に導出されて充電電力を供給・充電
する一対の充電端子と、前記充電端子の一端側へ並列に
介挿されたダイオードおよび抵抗器とを具備することを
特徴とする二次電池パック。1. An outer casing, a plurality of secondary battery cells housed and mounted in the outer casing, an electric circuit for electrically connecting the secondary battery cells, and one end of each of the electric circuits. A secondary battery comprising a pair of charging terminals that are connected to each other and led out of the exterior body to supply / charge charging power, and a diode and a resistor that are inserted in parallel to one end side of the charging terminal. pack.
供給・充電する過程での充電電圧検出方法であって、 前記二次電池と充電端子との間にダイオードおよび抵抗
器を並列に接続して充電電力をパルスで供給し、充電電
力のオフ時に二次電池の充電電圧を検出することを特徴
とする二次電池の充電電圧検出方法。2. A charging voltage detecting method in the process of supplying / charging charging power to a secondary battery through a charging terminal, wherein a diode and a resistor are provided in parallel between the secondary battery and the charging terminal. A charging voltage detecting method for a secondary battery, comprising connecting and supplying charging power in pulses to detect a charging voltage of the secondary battery when the charging power is turned off.
た複数個の二次電池セル、前記二次電池セル間を電気的
に接続する電気回路、前記電気回路に一端がそれぞれ接
続し外装体外に導出されて充電電力を供給・充電する一
対の充電端子、および前記充電端子の一端側へ並列に介
挿されたダイオードおよび抵抗器を具備する二次電池パ
ックに充電端子を介して充電電力をパルスで供給・充電
する過程での充電電圧検出方法であって、 前記充電電力のオフ時に二次電池パックの充電電圧を検
出することを特徴とする二次電池パックの充電電圧検出
方法。3. An exterior body, a plurality of secondary battery cells housed and mounted in the exterior body, an electric circuit for electrically connecting the secondary battery cells, and an exterior having one end connected to the electric circuit, respectively. Charging power via a charging terminal to a secondary battery pack including a pair of charging terminals that are drawn out of the body to supply / charge charging power, and a diode and a resistor that are inserted in parallel to one end side of the charging terminal. A method for detecting a charging voltage in the process of supplying / charging with a pulse, wherein the charging voltage of the secondary battery pack is detected when the charging power is off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070408A JPH09259934A (en) | 1996-03-26 | 1996-03-26 | Secondary battery pack and secondary battery charging voltage detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8070408A JPH09259934A (en) | 1996-03-26 | 1996-03-26 | Secondary battery pack and secondary battery charging voltage detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09259934A true JPH09259934A (en) | 1997-10-03 |
Family
ID=13430622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8070408A Pending JPH09259934A (en) | 1996-03-26 | 1996-03-26 | Secondary battery pack and secondary battery charging voltage detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09259934A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331413A (en) * | 1997-11-14 | 1999-05-19 | Nec Corp | Li-ion secondary battery pack and recharger |
| US7791317B2 (en) | 2006-08-01 | 2010-09-07 | Sony Corporation | Battery pack and method of calculating deterioration level thereof |
| US10553915B1 (en) | 2017-02-15 | 2020-02-04 | O2Micro Inc. | Systems and methods for configuring parameters for charging a battery pack |
-
1996
- 1996-03-26 JP JP8070408A patent/JPH09259934A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331413A (en) * | 1997-11-14 | 1999-05-19 | Nec Corp | Li-ion secondary battery pack and recharger |
| GB2331413B (en) * | 1997-11-14 | 2000-05-17 | Nec Corp | Method, recharger and system for recharging a Li-ion secondary battery pack |
| US6181107B1 (en) | 1997-11-14 | 2001-01-30 | Nec Corporation | Li-ion secondary battery pack, recharger, method and system for recharging the same |
| US7791317B2 (en) | 2006-08-01 | 2010-09-07 | Sony Corporation | Battery pack and method of calculating deterioration level thereof |
| US10553915B1 (en) | 2017-02-15 | 2020-02-04 | O2Micro Inc. | Systems and methods for configuring parameters for charging a battery pack |
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