JP3390906B2 - Test method and test device for secondary battery - Google Patents
Test method and test device for secondary batteryInfo
- Publication number
- JP3390906B2 JP3390906B2 JP26263798A JP26263798A JP3390906B2 JP 3390906 B2 JP3390906 B2 JP 3390906B2 JP 26263798 A JP26263798 A JP 26263798A JP 26263798 A JP26263798 A JP 26263798A JP 3390906 B2 JP3390906 B2 JP 3390906B2
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- test
- charging
- charge
- discharge
- 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 - Fee Related
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
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、二次電池の試験方
法及び試験装置に関する。二次電池は、既に各種の構成
が実用化されており、その特性を把握し、且つ所望の特
性を有するか否かを試験する必要がある。又二次電池は
電解液等を有することから、爆発や火災の可能性を有す
るものであるから、安全性を確保して試験することが要
望されている。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary battery testing method and testing apparatus. Various configurations of secondary batteries have already been put to practical use, and it is necessary to grasp the characteristics and test whether or not they have desired characteristics. Further, since the secondary battery has an electrolytic solution or the like and thus has a possibility of explosion or fire, it is required to test while ensuring safety.
【０００２】[0002]
【従来の技術】図３は従来例の試験装置の要部説明図で
あり、２１は被試験二次電池、２２は充放電切替部、２
３は電子負荷部、２４は直流電源部、２５は測定部、２
６は試験制御部を示す。この試験制御部２６は、試験条
件の入力機能や試験結果を表示する表示部等を含むもの
である。2. Description of the Related Art FIG. 3 is an explanatory view of essential parts of a conventional test apparatus, in which 21 is a secondary battery to be tested, 22 is a charge / discharge switching section, and 2 is a charge / discharge switching section.
3 is an electronic load unit, 24 is a DC power supply unit, 25 is a measurement unit, 2
Reference numeral 6 indicates a test controller. The test control unit 26 includes a test condition input function, a display unit for displaying test results, and the like.
【０００３】試験開始前に、試験制御部２６に、充放電
の電流値，電圧値，時間，回数等の試験プログラムを設
定する。そして、二次電池の試験開始を入力すると、そ
の試験プログラムに従って被試験二次電池２１の充放電
が開始される。即ち、充放電切替部２２を充電側に切替
えると、直流電源部２４から被試験二次電池２１に充電
される。又充放電切替部２２を放電側に切替えると、電
子負荷部２３に放電される。この充放電過程に於ける被
試験二次電池２１の電圧，電流，温度等を測定部２５に
よって測定し、測定データを試験制御部２６に転送す
る。この試験制御部６は、収集した測定データを解析
し、被試験二次電池２１の充放電の繰り返し可能回数等
の特性を求めて、表示或いは印字出力することができ
る。Prior to the start of the test, a test program for charging / discharging current value, voltage value, time, number of times, etc. is set in the test control unit 26. When the test start of the secondary battery is input, charging / discharging of the secondary battery 21 under test is started according to the test program. That is, when the charge / discharge switching unit 22 is switched to the charging side, the secondary battery 21 under test is charged from the DC power supply unit 24. When the charge / discharge switching unit 22 is switched to the discharge side, the electronic load unit 23 is discharged. The voltage, current, temperature, etc. of the secondary battery 21 under test during this charging / discharging process are measured by the measuring unit 25, and the measured data is transferred to the test control unit 26. The test control unit 6 can analyze the collected measurement data, obtain characteristics such as the number of times the secondary battery 21 under test can be charged and discharged repeatedly, and display or print it out.
【０００４】この試験装置に於ける充放電切替部２２と
電子負荷部２３とは、既に各種の構成が実用化されてい
るが、例えば、図４に示す構成を先に提案している。同
図に於いて、トランジスタＱ１，Ｑ２とダイオードＤ
１，Ｄ２とにより充放電切替部２２を構成し、トランジ
スタＱ３と演算増幅器ＯＰＡと抵抗Ｒ１，Ｒ２と基準電
圧設定部ＲＶとにより電子負荷部２３を構成し、この電
子負荷部２３を放電時のみでなく、充電時に於ける設定
電流の制御にも利用する場合を示す。The charging / discharging switching section 22 and the electronic load section 23 in this test apparatus have already been put to practical use in various configurations. For example, the configuration shown in FIG. 4 has been previously proposed. In the figure, transistors Q1 and Q2 and a diode D
1 and D2 form a charge / discharge switching unit 22, and a transistor Q3, an operational amplifier OPA, resistors R1 and R2, and a reference voltage setting unit RV form an electronic load unit 23, and this electronic load unit 23 is only discharged. Not only that, it also shows the case where it is used to control the set current during charging.
【０００５】例えば、試験制御部２６から基準電圧設定
部ＶＲによる基準電圧を設定すると、トランジスタＱ３
に流れる電流を規定することができる。そして、トラン
ジスタＱ１をオン，トランジスタＱ２をオフとすると、
直流電源部２４から、トランジスタＱ１→トランジスタ
Ｑ３→抵抗Ｒ１→ダイオードＤ２の一点鎖線矢印で示す
経路で、被試験二次電池２１に充電電流が流れる。For example, when the reference voltage is set by the reference voltage setting unit VR from the test control unit 26, the transistor Q3
It is possible to regulate the current flowing through the. When the transistor Q1 is turned on and the transistor Q2 is turned off,
A charging current flows from the DC power supply unit 24 to the secondary battery 21 under test along a path indicated by an alternate long and short dash line arrow of the transistor Q1, the transistor Q3, the resistor R1, and the diode D2.
【０００６】又トランジスタＱ１をオフ、トランジスタ
Ｑ２をオンとすると、被試験二次電池２１から、ダイオ
ードＤ１→トランジスタＱ３→抵抗Ｒ１→トランジスタ
Ｑ２の点線矢印の経路で放電電流が流れる。従って、電
子負荷部２３を構成するトランジスタＱ３を介して、設
定された充電電流及び放電電流が流れることになる。そ
して、試験制御部２６によって充電時間や放電時間及び
充放電回数が、試験プログラムに従って制御されて、二
次電池の試験が行われる。When the transistor Q1 is turned off and the transistor Q2 is turned on, a discharge current flows from the secondary battery 21 under test along the path of the dotted line arrow of diode D1 → transistor Q3 → resistor R1 → transistor Q2. Therefore, the set charging current and discharging current flow through the transistor Q3 forming the electronic load unit 23. Then, the test control unit 26 controls the charging time, the discharging time, and the number of times of charging / discharging according to the test program to test the secondary battery.
【０００７】[0007]
【発明が解決しようとする課題】二次電池は、鉛二次電
池，ニッケル・カドミウム二次電池、リチウム・イオン
二次電池，ニッケル水素二次電池等の各種の構成が実用
化されており、又電流容量や出力電圧も各種のものが実
用化されている。このような二次電池は、電解液の急激
な膨張による爆発や火災の危険性を含むものである。従
って、二次電池の試験開始前に、二次電池の構成，特性
を把握して試験プログラムを試験装置に設定する必要が
ある。しかし、外形形状が類似した二次電池であって
も、特性が大きく異なる場合もあり、誤って、充放電電
流を過大に設定すると、前述のような爆発や火災が発生
すことになる。本発明は、このような危険性を未然に防
止することを目的とする。As the secondary battery, various configurations such as a lead secondary battery, a nickel-cadmium secondary battery, a lithium-ion secondary battery and a nickel-hydrogen secondary battery have been put into practical use. Various types of current capacity and output voltage have been put to practical use. Such a secondary battery has a risk of explosion or fire due to abrupt expansion of the electrolytic solution. Therefore, before starting the test of the secondary battery, it is necessary to grasp the configuration and characteristics of the secondary battery and set the test program in the test device. However, even secondary batteries having similar external shapes may have greatly different characteristics, and if the charging / discharging current is set excessively by mistake, the above-described explosion or fire may occur. The present invention aims to prevent such a risk.
【０００８】[0008]
【課題を解決するための手段】本発明の二次電池の試験
方法は、（１）二次電池の充放電による試験方法であっ
て、設定した試験プログラムに従った電流による短時間
充放電を行って、二次電池の等価内部インピーダンスを
測定し、この等価内部インピーダンスが所定範囲内の時
に、試験プログラムに対応する二次電池であると判定し
て、この二次電池に対する試験プログラムに従った充放
電試験を開始し、等価内部インピーダンスが所定範囲内
でない時は、試験プログラムに対応する二次電池ではな
いと判定して試験の中止又は試験プログラムの変更を行
う過程を含むものである。このような過程を試験開始前
に設けることによって、誤った試験プログラムの実行に
よる二次電池の爆発等の危険を回避することができる。A test method for a secondary battery according to the present invention is (1) a test method by charging / discharging a secondary battery, which comprises short-time charge / discharge by a current according to a set test program. Then, the equivalent internal impedance of the secondary battery was measured, and when the equivalent internal impedance was within a predetermined range, it was determined that the secondary battery was a secondary battery corresponding to the test program, and the test program for the secondary battery was followed. When the charge / discharge test is started and the equivalent internal impedance is not within the predetermined range, it is determined that the secondary battery does not correspond to the test program and the test is stopped or the test program is changed. By providing such a process before the start of the test, it is possible to avoid the risk of explosion of the secondary battery or the like due to execution of an incorrect test program.
【０００９】又（２）等価内部インピーダンス測定時の
試験プログラムに従った電流による短時間充放電に於け
る充電回数と放電回数とを同一とすることができる。即
ち、二次電池の特性試験として充放電試験を行う時に、
等価内部インピーダンス測定の為の短時間充放電が、試
験プログラムによる充放電試験に於ける二次電池の容量
判定に影響を与えないようにすることができる。(2) It is possible to make the number of times of charging and discharging in the short-time charging / discharging by the current according to the test program at the time of measuring the equivalent internal impedance the same. That is, when performing a charge-discharge test as a characteristic test of the secondary battery,
It is possible to prevent the short-time charge / discharge for measuring the equivalent internal impedance from affecting the capacity determination of the secondary battery in the charge / discharge test by the test program.
【００１０】又本発明の二次電池の試験装置は、（３）
二次電池の充放電による試験装置であって、二次電池に
対する充放電を切替える充放電切替部２と、二次電池の
充電時の電源となる直流電源部４と、少なくとも二次電
池の放電時の負荷となる電子負荷部３と、この電子負荷
部３に流れる電流を設定し、且つ充放電切替部２を制御
して、二次電池の試験を行う試験制御部６と、二次電池
の充電電圧，電流，温度等を測定して試験制御部に入力
する測定部５とを含み、試験制御部６は、試験開始前
に、充放電切替部２を制御して二次電池の短時間充放電
を行わせる短時間充放電制御部７と、この短時間充放電
制御部７による二次電池の短時間充放電時に於ける測定
部５からの測定データにより、二次電池の等価内部イン
ピーダンスを測定して設定試験プログラムに適応してい
るか否かを判定する等価内部インピーダンス測定部８と
を有するものである。The secondary battery test apparatus of the present invention is (3)
A test device for charging / discharging a secondary battery, comprising a charging / discharging switching unit 2 for switching charging / discharging of the secondary battery, a DC power supply unit 4 serving as a power source for charging the secondary battery, and at least discharging the secondary battery. An electronic load unit 3 that is a load at the time, a test control unit 6 that sets a current flowing through the electronic load unit 3 and controls the charge / discharge switching unit 2 to test a secondary battery, and a secondary battery. Of the secondary battery by controlling the charge / discharge switching unit 2 before starting the test. Based on the short-time charge / discharge control unit 7 that performs time charge / discharge and the measurement data from the measurement unit 5 during the short-time charge / discharge of the secondary battery by the short-time charge / discharge control unit 7, the equivalent internal of the secondary battery is obtained. Measure impedance to determine if it is suitable for the setting test program Those having a valence internal impedance measurement unit 8.
【００１１】[0011]
【発明の実施の形態】図１は本発明の実施の形態の要部
説明図であり、１は被試験二次電池、２は充放電切替
部、３は電子負荷部 、４は直流電源部、５は測定部、
６は試験制御部、７は短時間充放電制御部、８は等価内
部インピーダンス測定部である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of essential parts of an embodiment of the present invention, in which 1 is a secondary battery to be tested, 2 is a charge / discharge switching section, 3 is an electronic load section, and 4 is a DC power supply section. 5 is a measuring unit,
6 is a test control unit, 7 is a short-time charge / discharge control unit, and 8 is an equivalent internal impedance measuring unit.
【００１２】充電切替部２と電子負荷部３とは、例え
ば、図４に示す構成を適用できるものであり、又試験制
御部６は、プロセッサ，キーボード，ディスプレイ等を
含み、従来例と同様に、充放電の電流値，電圧値，時
間，繰り返し回数等を設定し、この設定した試験プログ
ラムに従って被試験二次電池１の充放電試験を行うよう
に、充放電切替部３及び電子負荷部３を制御し、測定部
５による被試験二次電池１の電圧，電流，温度等の測定
データを収集して解析するものである。なお、電子負荷
部３は、図４に於いては充電時の電流設定にも使用する
ものであるが、放電時のみ使用するように充放電切替部
３を構成することも可能である。The charge switching section 2 and the electronic load section 3 can be applied, for example, to the configuration shown in FIG. 4, and the test control section 6 includes a processor, a keyboard, a display, etc., and is similar to the conventional example. , Charging / discharging current value, voltage value, time, number of repetitions, etc. are set, and the charging / discharging switching unit 3 and the electronic load unit 3 are set so that the charging / discharging test of the secondary battery 1 under test is performed according to the set test program. Is controlled to collect and analyze measurement data of the voltage, current, temperature, etc. of the secondary battery 1 under test by the measuring unit 5. The electronic load unit 3 is also used to set the current at the time of charging in FIG. 4, but the charge / discharge switching unit 3 can be configured to be used only at the time of discharging.
【００１３】本発明に於いては、被試験二次電池１の前
述の充放電試験を開始する前に、短時間充放電制御部７
を起動し、等価内部インピーダンス測定部８により、被
試験二次電池１に対して、試験プログラムに対応する二
次電池の定格電流による短時間の充電及び放電を行い、
前述のように、その充電回数と放電回数とを同一とし
て、被試験二次電池１の等価内部インピーダンスを測定
し、この等価内部インピーダンスが所定範囲内か否かを
判定する。In the present invention, the short-time charge / discharge control section 7 is provided before the charge / discharge test of the secondary battery 1 under test is started.
Start by equivalent internal impedance measurement unit 8, for the tested rechargeable battery 1, corresponds to the test program two
Charge and discharge for a short time with the rated current of the secondary battery,
As mentioned above, the number of times of charging and discharging should be the same.
Then, the equivalent internal impedance of the secondary battery 1 under test is measured, and it is determined whether or not the equivalent internal impedance is within a predetermined range.
【００１４】そして、所定範囲内の場合、試験装置にセ
ットした被試験二次電池１は、試験プログラムに対応し
た種類の二次電池と判定し、次の充放電試験に移行でき
るようにするもので、自動的に移行するか或いは試験取
扱者の入力指示により移行することができる。又所定範
囲内でない場合は、試験装置にセットした被試験二次電
池１は、試験プログラムに対応しない種類の二次電池と
判定し、警告表示を行うことにより、試験プログラムの
変更或いは被試験二次電池１の交換を行うものである。If it is within the predetermined range, the secondary battery to be tested 1 set in the test apparatus is determined to be a secondary battery of a type corresponding to the test program, and it is possible to shift to the next charge / discharge test. Then, the transfer can be performed automatically or according to the input instruction of the test operator. If it is not within the predetermined range, the secondary battery 1 under test set in the test apparatus is determined to be a secondary battery of a type that does not correspond to the test program, and a warning is displayed to change the test program or the secondary battery under test. The secondary battery 1 is replaced.
【００１５】前述の等価内部インピーダンス測定時の短
時間充放電は、例えば、数ｍｓ〜数ｓ程度に設定するも
のである。又繰り返し回数は、等価内部インピーダンス
の測定値の平均値を求めることを考慮して数回〜数１０
回程度とする。なお、通常の二次電池の充放電試験は、
充電及び放電の時間を数１０分程度以上に設定するもの
であるから、等価内部インピーダンス測定時の短時間充
放電は、充放電試験時に比較して数千分の１以下の短時
間であり、且つ回数も少ないから、短時間で等価内部イ
ンピーダンスの測定が可能となる。The short-time charging / discharging at the time of measuring the above-mentioned equivalent internal impedance is set to, for example, several ms to several s. The number of repetitions is several to several tens in consideration of obtaining the average value of the measured values of the equivalent internal impedance.
It will be about once. In addition, the normal secondary battery charge and discharge test,
Since the charging and discharging time is set to several tens of minutes or more, the short-time charge / discharge at the time of measuring the equivalent internal impedance is a few thousand times or less as compared with the charge / discharge test, Moreover, since the number of times is small, it is possible to measure the equivalent internal impedance in a short time.
【００１６】この等価内部インピーダンスの測定は、例
えば、定格電流Ｉを流した時の二次電池の電圧変化分Δ
Ｖを求め、等価内部インピーダンスｒを、ｒ＝ΔＶ／Ｉ
によって求める。この場合、定格電流Ｉより大きい電流
を流せば、電圧変化分ΔＶが大きくなるから、等価内部
インピーダンスｒは大きくなる。従って、被試験二次電
池１と同一の構成の二次電池の定格電流Ｉを流した時の
等価内部インピーダンスｒは、予め測定しておくことが
できるから、充放電試験前の短時間充放電により求めた
等価内部インピーダンスｒが所定範囲内であれば、試験
制御部６に設定した試験プログラムに対応した二次電池
或いはそれに近似した特性の二次電池であると判定する
ことができる。この場合、短時間充放電制御部７及び等
価内部インピーダンス測定部８は、試験制御部６を構成
するプロセッサの処理機能によって実現することもでき
る。This equivalent internal impedance is measured, for example, by the voltage change Δ of the secondary battery when the rated current I is applied.
V, and the equivalent internal impedance r is r = ΔV / I
Ask by. In this case, when a current larger than the rated current I is passed, the voltage change amount ΔV increases, so that the equivalent internal impedance r increases. Therefore, the equivalent internal impedance r of the secondary battery having the same configuration as the secondary battery under test 1 when the rated current I is applied can be measured in advance. If the equivalent internal impedance r obtained by the above is within a predetermined range, it can be determined that the secondary battery corresponds to the test program set in the test control unit 6 or a secondary battery having characteristics similar to the secondary battery. In this case, the short-time charge / discharge control unit 7 and the equivalent internal impedance measuring unit 8 can also be realized by the processing function of the processor configuring the test control unit 6.
【００１７】図２は本発明の実施の形態のフローチャー
トであり、被試験二次電池１を試験装置にセットし
（ａ）、試験装置に二次電池の試験データをセットする
（ｂ）。即ち、充放電試験時の電流，電圧，時間，繰り
返し回数等の試験プログラムを設定する。そして、充放
電試験前に、試験制御部６の短時間充放電制御部７を起
動し、被試験二次電池１の定格電流Ｉによる短時間充放
電を行って、測定部５により、例えば、放電開始前の電
圧と、放電開始から所定短時間後の電圧との差分を電圧
変化分ΔＶとして求め、等価内部インピーダンス測定部
８に測定データを転送し、ｒ＝ΔＶ／Ｉにより、等価内
部インピーダンスｒを求める（ｃ）。この等価内部イン
ピーダンスｒを複数回求めて平均値を算出し、判定用の
等価内部インピーダンスｒとすることができる。FIG. 2 is a flow chart of the embodiment of the present invention, in which the secondary battery to be tested 1 is set in the test device (a), and the test data of the secondary battery is set in the test device (b). That is, a test program for the current, voltage, time, number of repetitions, etc. during the charge / discharge test is set. Then, before the charge / discharge test, the short-time charge / discharge control unit 7 of the test control unit 6 is started to perform short-time charge / discharge with the rated current I of the secondary battery 1 under test, and the measurement unit 5, for example, The difference between the voltage before the start of discharge and the voltage after a predetermined short time after the start of discharge is obtained as the voltage change ΔV, the measurement data is transferred to the equivalent internal impedance measuring unit 8, and the equivalent internal impedance is obtained by r = ΔV / I. Find r (c). The equivalent internal impedance r can be obtained a plurality of times and the average value can be calculated to be the equivalent internal impedance r for determination.
【００１８】そして、この等価内部インピーダンスｒが
所定範囲内か否かを判定し（ｄ）、所定範囲内の場合
は、設定した試験プログラムに対応する二次電池である
と判定して、自動的に或いは試験取扱者の操作により充
放電試験を開始し（ｅ）、測定部５による被試験二次電
池１の電圧，電流，温度等の測定データを収集，解析す
る（ｆ）。Then, it is judged whether or not the equivalent internal impedance r is within a predetermined range (d), and if it is within the predetermined range, it is judged that the secondary battery corresponds to the set test program, and is automatically determined. Alternatively, the charge / discharge test is started by the operation of the test operator (e), and the measurement data of the voltage, current, temperature, etc. of the secondary battery 1 under test by the measuring unit 5 is collected and analyzed (f).
【００１９】又等価内部インピーダンスｒが所定範囲内
でない場合は、試験を開始するか否かを判定する
（ｇ）。即ち、設定した試験プログラムに対応する二次
電池ではないから、警告表示を行って充放電試験を中止
するか（ｉ）、又は電流，電圧等の試験データを変更し
（ｈ）、ステップ（ｃ）に移行して、再度被試験二次電
池の短時間充放電により、等価内部インピーダンスを測
定するか、又は強制的に試験を開始する（ｅ）。When the equivalent internal impedance r is not within the predetermined range, it is judged whether or not the test is started (g). That is, since the secondary battery does not correspond to the set test program, a warning is displayed and the charge / discharge test is stopped (i), or test data such as current and voltage is changed (h), and the step (c) ), The equivalent internal impedance is measured again by short-time charge / discharge of the secondary battery under test, or the test is forcibly started (e).
【００２０】従って、試験装置に設定した試験プログラ
ムに対応しない二次電池を、被試験二次電池として試験
装置にセットした時に、この二次電池に過大な電流を流
すことを防止できるから、爆発や火災の発生を未然に防
止できることになる。Therefore, when a secondary battery that does not correspond to the test program set in the test device is set in the test device as the secondary battery to be tested, it is possible to prevent an excessive current from flowing through the secondary battery, which causes an explosion. It is possible to prevent the occurrence of fire and fire.
【００２１】[0021]
【発明の効果】以上説明したように、本発明は、二次電
池の充放電試験開始前に、短時間充放電により、被試験
二次電池１の等価内部インピーダンスを測定し、試験装
置に設定した試験プログラムに対応した二次電池の等価
内部インピーダンスに相当する所定範囲内であれば、充
放電試験を開始し、所定範囲内でなれば、異なる種類の
二次電池を被試験二次電池としてセットした場合である
から、その試験プログラムによる充放電試験を行わない
ようにしたものであり、従って、セットした被試験二次
電池に対応しない試験プログラムによる過大な電流を流
して、爆発や火災が生じる危険性を未然に防止すること
ができる利点がある。As described above, according to the present invention, the equivalent internal impedance of the secondary battery under test 1 is measured by short-time charging / discharging before starting the charging / discharging test of the secondary battery and setting it in the test apparatus. If within the predetermined range corresponding to the equivalent internal impedance of the secondary battery corresponding to the test program, start the charge-discharge test, if it is not within the predetermined range, a different type of secondary battery as the tested secondary battery Since this is the case when the test program is set, the charge / discharge test is not performed according to the test program.Therefore, an explosion or fire may occur if an excessive current is applied by a test program that does not correspond to the set secondary battery under test. There is an advantage that the risk that arises can be prevented in advance.
【図１】本発明の実施の形態の要部説明図である。FIG. 1 is an explanatory diagram of a main part of an embodiment of the present invention.
【図２】本発明の実施の形態のフローチャートである。FIG. 2 is a flowchart of an embodiment of the present invention.
【図３】従来例の試験装置の要部説明図である。FIG. 3 is an explanatory view of a main part of a conventional test apparatus.
【図４】被試験二次電池の充放電の説明図である。FIG. 4 is an explanatory diagram of charge / discharge of a secondary battery under test.
１ 被試験二次電池 ２ 充放電切替部 ３ 電子負荷部 ４ 直流電源部 ５ 測定部 ６ 試験制御部 ７ 短時間充放電制御部 ８ 等価内部インピーダンス測定部 1 Secondary battery under test 2 Charge / discharge switching section 3 Electronic load section 4 DC power supply 5 measuring section 6 Test control unit 7 Short-time charge / discharge control unit 8 Equivalent internal impedance measurement section
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01R 31/36 H01M 10/48 H02J 7/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) G01R 31/36 H01M 10/48 H02J 7/00
Claims (2)
て、 設定した試験プログラムに従った電流による短時間充放
電に於ける充電回数と放電回数とを同一として二次電池
の等価内部インピーダンスを測定し、該等価内部インピ
ーダンスが所定範囲内の時に、前記試験プログラムに対
応する二次電池であると判定して該二次電池に対する前
記試験プログラムに従った充放電試験を開始し、前記等
価内部インピーダンスが所定範囲内でない時は、前記試
験プログラムに対応する二次電池ではないと判定して試
験の中止又は試験プログラムの変更を行う過程を含むこ
とを特徴とする二次電池の試験方法。1. A test method for charging / discharging a secondary battery, wherein the number of times of charging and discharging during short-time charging / discharging by a current according to a set test program is the same, and the equivalent internal impedance of the secondary battery is the same. When the equivalent internal impedance is within a predetermined range, it is determined that the secondary battery corresponds to the test program, and a charge / discharge test according to the test program for the secondary battery is started, A method for testing a secondary battery, comprising the step of determining that the secondary battery does not correspond to the test program when the internal impedance is not within a predetermined range and stopping the test or changing the test program.
て、 前記二次電池に対する充電と放電とを切替える充放電切
替部と、 前記二次電池の充電時の電源とする直流電源部と、 少なくとも前記二次電池の放電時の負荷とする電子負荷
部と、 該電子負荷部に流れる電流を設定し、且つ前記充放電切
替部を制御して前記二次電池の試験を行う試験制御部
と、 前記二次電池の充電電圧，電流，温度を測定して前記試
験制御部に入力する測定部とを有し、 前記試験制御部は、試験開始前に前記充放電切替部を制
御して前記二次電池の短時間充放電を行わせる短時間充
放電制御部と、該短時間充放電制御部による前記二次電
池の短時間充放電時に於ける前記測定部からの測定デー
タにより前記二次電池の等価内部インピーダンスを測定
して設定試験プログラムに適応しているか否かを判定す
る等価内部インピーダンス測定部とを有する ことを特徴
とする二次電池の試験装置。 2. A test device for charging and discharging a secondary battery.
The charge / discharge switch that switches between charging and discharging the secondary battery.
Replacement unit, a DC power supply unit that serves as a power source when charging the secondary battery, and an electronic load that serves as a load at least when the secondary battery discharges
Section , the current flowing through the electronic load section is set, and the charge / discharge is cut off.
Test control unit that controls the replacement unit to test the secondary battery
And measuring the charging voltage, current and temperature of the secondary battery
The test control section controls the charge / discharge switching section before starting the test.
Control for a short time so that the secondary battery can be charged and discharged for a short time.
A discharge control unit and the secondary power source by the short-time charge / discharge control unit.
The measurement data from the measurement unit during short-time charging and discharging of the pond
The equivalent internal impedance of the secondary battery
To determine whether it is suitable for the setting test program.
Characterized in that it has an equivalent internal impedance measurement unit that
Secondary battery test equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26263798A JP3390906B2 (en) | 1998-09-17 | 1998-09-17 | Test method and test device for secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26263798A JP3390906B2 (en) | 1998-09-17 | 1998-09-17 | Test method and test device for secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000088934A JP2000088934A (en) | 2000-03-31 |
| JP3390906B2 true JP3390906B2 (en) | 2003-03-31 |
Family
ID=17378560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26263798A Expired - Fee Related JP3390906B2 (en) | 1998-09-17 | 1998-09-17 | Test method and test device for secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3390906B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005054879A1 (en) * | 2003-12-04 | 2005-06-16 | Powertron Eng'g Co., Ltd | Battery cell voltage and impedance measuring circuit |
| KR200344389Y1 (en) * | 2003-12-04 | 2004-03-11 | 주식회사 파워트론 | Battery cell voltage Measuring circuit using the high voltage common mode differential amplifier |
| EP1548452A1 (en) * | 2003-12-26 | 2005-06-29 | Günter Jost | Method and device for determining the internal resistance of a battery block |
| CN102269799B (en) * | 2011-04-29 | 2013-09-04 | 海能达通信股份有限公司 | Method and system for detecting capacity of secondary battery |
| KR101276272B1 (en) * | 2011-07-06 | 2013-06-21 | 한양대학교 에리카산학협력단 | Apparatus for providing current using current sense |
| JP7116701B2 (en) * | 2019-03-27 | 2022-08-10 | エスペック株式会社 | Charge/discharge test device, control program and charge/discharge test method |
-
1998
- 1998-09-17 JP JP26263798A patent/JP3390906B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000088934A (en) | 2000-03-31 |
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