JPH0622159B2 - Detection method of abnormal single cell in laminated battery - Google Patents
Detection method of abnormal single cell in laminated batteryInfo
- Publication number
- JPH0622159B2 JPH0622159B2 JP59250556A JP25055684A JPH0622159B2 JP H0622159 B2 JPH0622159 B2 JP H0622159B2 JP 59250556 A JP59250556 A JP 59250556A JP 25055684 A JP25055684 A JP 25055684A JP H0622159 B2 JPH0622159 B2 JP H0622159B2
- Authority
- JP
- Japan
- Prior art keywords
- single cell
- laminated battery
- voltage
- internal resistance
- detecting
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04574—Current
- H01M8/04589—Current of fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04544—Voltage
- H01M8/04552—Voltage of the individual fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04634—Other electric variables, e.g. resistance or impedance
- H01M8/04641—Other electric variables, e.g. resistance or impedance of the individual fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
- H01M8/04671—Failure or abnormal function of the individual fuel cell
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は、積層電池における異常単セルの検知方法、特
に燃料電池発電システムの高信頼性に好適な積層電池に
おける異常単セルの検知方法に関する。The present invention relates to a method for detecting abnormal single cells in a laminated battery, and more particularly to a method for detecting abnormal single cells in a laminated battery suitable for high reliability of a fuel cell power generation system.
燃料電池発電セルの劣化検出方法として、特開昭57−11
1962号公報に記載されたものがある。この公報によれ
ば、一定時間内の燃料電池セルの電圧降下を設定値と比
較して、発電セル中のいずれかに劣化単セルが発生した
ことを検出することとしている。As a method for detecting deterioration of a fuel cell power generation cell, Japanese Patent Application Laid-Open No. 57-11
There is one described in Japanese Patent No. 1962. According to this publication, the voltage drop of the fuel cell within a certain period of time is compared with a set value to detect the occurrence of a degraded single cell in any of the power generation cells.
この従来例によれば、電圧検出点数が少なくてすむので
検出システムが簡単で取扱いが容易となる利点を持つ。
然るに、発電セルの劣化判定の検出電圧は、負荷を接続
しままの検出電圧であり、負荷の変動によつて検出電圧
もばらつく。検出電圧のばらつきの効果、設定値を一定
とした場合、負荷の影響による電圧変動を発電セルの劣
化と誤判定する恐れがある。設定値を負荷に応じて可変
とすれは、誤検出を防ぎうるが、負荷の様子に応じて設
定値を可変にすることは容易でない。According to this conventional example, since the number of voltage detection points is small, the detection system is simple and easy to handle.
However, the detection voltage for determining the deterioration of the power generation cell is the detection voltage with the load still connected, and the detection voltage also varies depending on the change in the load. If the effect of variations in the detected voltage and the set value are fixed, the voltage fluctuation due to the influence of the load may be erroneously determined as the deterioration of the power generation cell. If the set value can be changed depending on the load, erroneous detection can be prevented, but it is not easy to change the set value according to the state of the load.
本発明の目的は、負荷変動時でさえも確実に異常単セル
を検知可能とした積層電池における異常単セルの検知方
法を提供することにある。An object of the present invention is to provide a method for detecting an abnormal single cell in a laminated battery, which is capable of surely detecting the abnormal single cell even when the load changes.
第２図は積層電池の構成例図である。積層電池は、セパ
レータ１，通路１０を持つアノード２，電解質マトリツ
クス３，通路１１を持つカソード４とを一層とし、この
層を多層に積み上げた構成より成る。通路１０と通路１
１とは、縦と横との関係にあり、一方に燃料（例えばＨ
２）、他方に空気又は酸素（Ｏ２）を送り込む。かかる
積層電池を複数個使用して大電力を得る。尚、各層にお
けるアノード２と電解質マトリツクス３とカソード４を
持つて単セルと称することとする。FIG. 2 is a structural example diagram of a laminated battery. The laminated battery has a structure in which a separator 1, an anode having a passage 10, an electrolyte matrix 3, and a cathode 4 having a passage 11 form one layer, and these layers are stacked in multiple layers. Passage 10 and passage 1
1 has a vertical and horizontal relationship, and one of them has a fuel (for example, H
2 ), sending air or oxygen (O 2 ) to the other. A large amount of power is obtained by using a plurality of such laminated batteries. It should be noted that the anode 2, the electrolyte matrix 3 and the cathode 4 in each layer are referred to as a single cell.
本発明は、積層電池に流れる電流Ｉと各単セルの発生電
圧Ｖｉ（ｉ＝１，２，…。ｉは単セル積層番号）を測定
することにより、異常単セルの判定基準として、負荷変
動に影響されない単セル個有の物性値、即ち単セルの内
部抵抗ｒｉに着目する。The present invention measures the current I flowing in the laminated battery and the generated voltage V i of each single cell (i = 1, 2, ... Attention is paid to the physical property value unique to a single cell that is not affected by fluctuations, that is, the internal resistance r i of the single cell.
ｒｉ＝（Ｅｉ−Ｖｉ）／Ｉ …(１) この内部抵抗ｒｉと異常判定基準となる設定値との大き
さを比較して積層電池における異常単セルの検出を行う
ようにした。r i = (E i −V i ) / I (1) The size of the internal resistance r i is compared with the set value serving as an abnormality determination reference to detect an abnormal single cell in the laminated battery. .
更に具体的に説明する。A more specific description will be given.
第３図は積層電池における各単セルの電気的等価回路に
よる本発明の検知方法を説明する図である。Ｅ１，
Ｅ２，Ｅ３はそれそれ各単セルの起電力を示す。ｒ１，
ｒ２，ｒ３は各単セルの内部抵抗である。かかる積層電
池に負荷Ｒを直列に接続する。更に、検知のために、各
単セル毎に端子電圧検出のために電圧計１２，１３，１
４、及び負荷に直列に電流計１５を接続する。FIG. 3 is a diagram for explaining the detection method of the present invention by an electrically equivalent circuit of each single cell in a laminated battery. E 1 ,
E 2 and E 3 respectively indicate the electromotive force of each single cell. r 1 ,
r 2 and r 3 are the internal resistance of each single cell. A load R is connected in series to such a laminated battery. Further, for detection, a voltmeter 12, 13, 1 for detecting the terminal voltage for each single cell.
4, and the ammeter 15 in series with the load.
かかる構成で、電流計１５の電流値Ｉ，電圧計１２，１
３，１４の電圧Ｖ１，Ｖ２，Ｖ３，…とをもとに、それ
ぞれの内部抵抗ｒ１，ｒ２，ｒ３を求める。With this configuration, the current value I of the ammeter 15 and the voltmeters 12, 1
Based on the voltages V 1 , V 2 , V 3 , ... Of 3 and 14, the respective internal resistances r 1 , r 2 , r 3 are obtained.
一方、単セルの電気的特性は、一般に第４図の如くな
る。第４図は、横軸に電流密度Ｊ（ｍＡ／cm2）、縦軸
に発生起電力Ｖをとる。電流密度Ｊの増加と共に、活性
化分極，抵抗分極，濃度分極などによる過電圧分の電圧
が減少し、右下がりのほぼ直線的な電気的特性を示すこ
とがわかる。On the other hand, the electrical characteristics of a single cell are generally as shown in FIG. In FIG. 4, the horizontal axis represents current density J (mA / cm 2 ) and the vertical axis represents generated electromotive force V. It can be seen that as the current density J increases, the voltage of the overvoltage due to activation polarization, resistance polarization, concentration polarization, etc. decreases, and shows a substantially downward linear electrical characteristic.
例えば、第４図で健全な単セルの電気的特性を示す線を
とすると、その時の内部抵抗ｒ１は、 もしくは、 で示される。ここで、Ｖ０は線の直線部を電圧軸に延
長した切片の電圧値であり定数として扱いうる。Ａは、
単セルの発電有効面積である。これに対し、健全でない
単セルの電気的特性を示す線を（又は）で示すと、
その時の内部抵抗ｒ２（又はｒ３）は、 となる。（３），（４）式及び第３図よりｒ２＞ｒ１が
成立することがわかる。For example, letting a line showing the electrical characteristics of a healthy single cell in FIG. 4 be the internal resistance r 1 at that time, Or Indicated by. Here, V 0 is the voltage value of the intercept obtained by extending the linear portion of the line on the voltage axis, and can be treated as a constant. A is
This is the effective power generation area of a single cell. On the other hand, if a line showing the electrical characteristics of an unhealthy single cell is indicated by (or),
The internal resistance r 2 (or r 3 ) at that time is Becomes From equations (3) and (4) and FIG. 3, it can be seen that r 2 > r 1 holds.
内部抵抗ｒｉは、単セルの固有な値であり、負荷変動の
影響を受けない。予め比較用設定値を用意しておき、こ
の比較用設定値と検出内部内抵抗値ｒｉとを比較するこ
とによつて、単セルの異常の有無を判断できる。The internal resistance r i is a unique value of the single cell and is not affected by the load fluctuation. Whether or not there is an abnormality in the single cell can be determined by preparing a comparison set value in advance and comparing this comparison set value with the detected internal resistance value r i .
第１図は本発明の異常検知方法を実施するための異常検
知装置を示す。積層電池１は、第２図に示した積層電池
を使用する。各単セルの両端３ａ−３ｂ，４ａ−４ｂ，
５ａ−５ｂ，…に電圧検出器３ｃ，４ｃ，５ｃ，…を接
続した。更に、積層電池１の出力端と負荷２６との間に
直列に電流検出計22を設けた。演算器２３は、単セル対
応の演算要素を持ち、各演算要素は電圧検出器の検出電
圧と電流検出器の検出電流とを取込み、内部抵抗値ｒｉ
を算出する。比較器２４は演算器２３の各演算要素の算
出内部抵抗値ｒｉと設定器２５の設定値とを取込み比較
する単セル対応の比較要素を持つ。この比較要素の出力
値が単セルの異常の有無を示す。FIG. 1 shows an abnormality detection device for carrying out the abnormality detection method of the present invention. As the laminated battery 1, the laminated battery shown in FIG. 2 is used. Both ends 3a-3b, 4a-4b of each unit cell,
Voltage detectors 3c, 4c, 5c, ... Are connected to 5a-5b ,. Further, a current detector 22 is provided in series between the output end of the laminated battery 1 and the load 26. The arithmetic unit 23 has an arithmetic element corresponding to a single cell, and each arithmetic element takes in the detection voltage of the voltage detector and the detection current of the current detector, and the internal resistance value r i
To calculate. The comparator 24 has a comparison element corresponding to a single cell that takes in and compares the calculated internal resistance value r i of each arithmetic element of the arithmetic unit 23 and the set value of the setter 25. The output value of this comparison element indicates whether there is an abnormality in the single cell.
動作を説明する。積層電池２０は、負荷２６に電圧及び
電流を供給しているものとする。且つ負荷変動を起して
いるものとする。この状態で、電圧検出計３ｃ，４ｃ，
５ｃ，…は電圧検出を行い、電流検出計２２は電流検出
を行う。この検出電圧及び検出電流は、演算器２３の対
応演算要素に送られ、内部抵抗値の演算に供せられる。
求まつた内部抵抗値は、比較器２４の各比較要素で設定
器２５を設定値と比較される。これにより比較基準値と
の偏差が許容値以上であれば異常と判定され、偏差が許
容値以内であれば正常と判定される。The operation will be described. The laminated battery 20 is assumed to supply voltage and current to the load 26. Moreover, it is assumed that the load is changed. In this state, the voltage detectors 3c, 4c,
5c, ... Detects voltage, and the current detector 22 detects current. The detected voltage and the detected current are sent to the corresponding calculation element of the calculator 23 and used for the calculation of the internal resistance value.
The obtained internal resistance value is compared with the set value in the setter 25 by each comparison element of the comparator 24. Accordingly, if the deviation from the comparison reference value is equal to or larger than the allowable value, it is determined to be abnormal, and if the deviation is within the allowable value, it is determined to be normal.
本実施例によれば、負荷に電圧，電流を供給しながらの
状態のままで、単セルの異常の有無を検出できる。特に
負荷変動があつても、その負荷変動に関係なく、単セル
の異常を正しく検出できる。According to the present embodiment, it is possible to detect whether or not there is an abnormality in the single cell while the voltage and current are being supplied to the load. In particular, even when there is a load change, the abnormality of the single cell can be correctly detected regardless of the load change.
第５図は、電圧検出計，演算器２３，比較器２４の部品
点数の省力化をはかつた実施例を示す。各単セルの出力
端３ａ−３ｂ，４ａ−４ｂ，５ａ−５ｂ，…の出力を時
分割で切換えるスイツチ２７を設けた。この結果、電圧
検出器３ｃを１個とし、且つ演算器２３を１個の演算要
素，比較器２４を１個の比較要素で構成できた。FIG. 5 shows an embodiment in which the number of parts of the voltage detector, the arithmetic unit 23, and the comparator 24 is reduced. A switch 27 for switching the outputs of the output terminals 3a-3b, 4a-4b, 5a-5b, ... Of each single cell in a time division manner is provided. As a result, the number of voltage detectors 3c was one, the arithmetic unit 23 was one arithmetic element, and the comparator 24 was one comparison element.
この実施例では、スイツチ２７を次々に切換え、各切換
え出力端毎に内部抵抗値の検出及び異常の有無の比較を
行うことになる。In this embodiment, the switches 27 are switched one after another, and the internal resistance value is detected and the presence / absence of abnormality is compared for each switching output terminal.
本実施例によれば、全体の単セルの異常検出を同時には
できない不利はあるが、スイツチ切換速度を高速に行え
ば、実質的に問題はない。According to the present embodiment, there is a disadvantage that the abnormality detection of the entire single cell cannot be performed at the same time, but there is substantially no problem if the switch switching speed is high.
積層電池へ供給される燃料組成が異なることがある。こ
のための実施例を第６図に示す。本実施例は、燃料入口
側の燃料系統２９の一部にガス濃度センサ３０を設け、
このセンサ３０の検出値を設定器２５に入力せしめ、設
定値の設定条件に加味せしめた点にある。設定器２５
は、ガス濃度と設定値との相関関係を予め設定されてお
り、センサ３０からのガス濃度に応じて、設定値を変更
させる。The fuel composition supplied to the stacked cell may be different. An embodiment for this purpose is shown in FIG. In this embodiment, a gas concentration sensor 30 is provided in a part of the fuel system 29 on the fuel inlet side,
The detection value of the sensor 30 is input to the setting device 25, and the setting condition of the setting value is taken into consideration. Setting device 25
Has a preset correlation between the gas concentration and the set value, and changes the set value according to the gas concentration from the sensor 30.
この実施例では、燃料そのものが変つた場合、又は燃料
の改質条件が異つた場合などにより、積層電池１へ供給
する燃料組成が変つても、積層電池１もしくは単セルの
特性が変つたときでさえも、確実に単セル異常を検出で
きる。In this embodiment, when the characteristics of the laminated battery 1 or the single cell are changed even when the fuel composition supplied to the laminated battery 1 is changed due to a change in the fuel itself or a change in the fuel reforming conditions. Even in this case, it is possible to reliably detect a single cell abnormality.
第７図は第５図対応の実施例であり、スイツチ２７を設
ける、電圧検出器，演算器２３，比較器２４の構成を簡
単にせしめたものである。FIG. 7 shows an embodiment corresponding to FIG. 5, in which the configuration of the voltage detector, the arithmetic unit 23, and the comparator 24 provided with the switch 27 is simplified.
以上の実施例以外に各種の変形例が存在する。There are various modifications other than the above embodiments.
第１は、積層電池の各単セルの接続を直列接続とした
が、電流をかせぐためには直並列接続の仕方もある。か
かる接続についても適用できる。First, the single cells of the laminated battery are connected in series, but there is also a method of serial-parallel connection in order to make a current. It is also applicable to such connection.
第２は、温度変化に対応するものである。温度によつ
て、電流密度Ｊ−電圧特性が変化する。その一例を第８
図に示す。この温度変化により、内部抵抗が変化する
故、内部抵抗値を補正することが必要となる。この対策
としては、比較基準値に温度補正を加えること（即ち設
定器２５内の設定値の温度補正）、又は検出内部抵抗値
そのものに温度補正が加えること、の２つがある。The second is to respond to temperature changes. The current density J-voltage characteristic changes depending on the temperature. 8th example
Shown in the figure. Since the internal resistance changes due to this temperature change, it is necessary to correct the internal resistance value. There are two countermeasures for this: adding temperature correction to the comparison reference value (that is, temperature correction of the set value in the setter 25) or adding temperature correction to the detected internal resistance value itself.
本発明によれば、積層電池の異常セルの検出を正確にで
きるようになつた。According to the present invention, it is possible to accurately detect an abnormal cell in a laminated battery.
第１図は本発明の実施例を実現する異常検知装置例図、
第２図は本発明の適用対象となる積層電池の斜視図、第
３図，第４図は本発明の説明図、第５図，６図，７図は
本発明の他の実施例を実現する異常検知装置例図、第８
図は温度変化によるＪ−Ｖ特性図である。 ２０……積層電池、２２……電流検出器、３ｃ，４ｃ，
５ｃ……電圧検出器、２３……演算器、２４……比較
器、２５……設定器、２６……負荷。FIG. 1 is a diagram showing an example of an abnormality detection device for realizing an embodiment of the present invention,
FIG. 2 is a perspective view of a laminated battery to which the present invention is applied, FIGS. 3 and 4 are explanatory views of the present invention, and FIGS. 5, 6, and 7 are other embodiments of the present invention. Abnormality detection device example diagram, No. 8
The figure is a JV characteristic diagram due to temperature change. 20 ... laminated battery, 22 ... current detector, 3c, 4c,
5c ... voltage detector, 23 ... calculator, 24 ... comparator, 25 ... setting device, 26 ... load.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 椎名 孝次 茨城県土浦市神立町502番地 株式会社日 立製作所機械研究所内 (72)発明者 野口 芳樹 東京都千代田区神田駿河台４丁目６番地 株式会社日立製作所内 (56)参考文献 特開 昭53−29532（ＪＰ，Ａ) 実開 昭56−156274（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Shiina 502 Jinritsu-cho, Tsuchiura-shi, Ibaraki Institute of Mechanical Research, Hiritsu Manufacturing Co., Ltd. (72) Yoshiki Noguchi 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd. In-house (56) Reference Japanese Patent Laid-Open No. 53-29532 (JP, A) Actually developed 56-156274 (JP, U)
Claims (2)
挟持する電極とをもって構成される単セルをセパレータ
を用いて積み重ねて成り燃料ガスと空気または酸素とが
供給される積層電池の上記各セルの電極から単セル出力
電圧を検出し、上記積層電池に流れる電流を検出し、該
検出電圧と検出電流とから当該単セルの内部抵抗値を算
出し、該算出した内部抵抗値と基準設定値との比較によ
り当該単セルの異常判定を行う異常単セルの検知方法に
おいて、積層電池に供給される上記燃料ガスのガス濃度
を検出し、該検出値に応じて前記基準設定値を変更する
ことを特徴とする積層電池における異常単セルの検知方
法。1. An electrode of each cell of a laminated battery, which is formed by stacking single cells composed of an electrolyte matrix and electrodes sandwiching the matrix by using a separator and is supplied with fuel gas and air or oxygen. Detecting the single cell output voltage, detecting the current flowing in the laminated battery, calculating the internal resistance value of the single cell from the detected voltage and the detected current, and comparing the calculated internal resistance value and the reference set value According to the method for detecting an abnormal single cell for determining an abnormality of the single cell, the gas concentration of the fuel gas supplied to the laminated battery is detected, and the reference set value is changed according to the detected value. Method for detecting abnormal single cell in laminated battery.
抵抗値あるいは前記基準設定値を温度補正することを特
徴とする積層電池における異常単セルの検知方法。2. A method for detecting an abnormal single cell in a laminated battery according to claim 1, wherein the internal resistance value or the reference set value is temperature-corrected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59250556A JPH0622159B2 (en) | 1984-11-29 | 1984-11-29 | Detection method of abnormal single cell in laminated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59250556A JPH0622159B2 (en) | 1984-11-29 | 1984-11-29 | Detection method of abnormal single cell in laminated battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61131373A JPS61131373A (en) | 1986-06-19 |
| JPH0622159B2 true JPH0622159B2 (en) | 1994-03-23 |
Family
ID=17209664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59250556A Expired - Lifetime JPH0622159B2 (en) | 1984-11-29 | 1984-11-29 | Detection method of abnormal single cell in laminated battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622159B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024525A (en) * | 2000-09-25 | 2002-03-30 | 요트 루나우 | Method for operating a fuel cell battery |
| JP4807000B2 (en) * | 2005-08-09 | 2011-11-02 | トヨタ自動車株式会社 | Performance degradation determination apparatus and method |
| JP5032762B2 (en) * | 2005-10-31 | 2012-09-26 | キヤノン株式会社 | Electronics |
| JP2009087741A (en) * | 2007-09-28 | 2009-04-23 | Toshiba Corp | Degradation detection device of fuel cell and fuel cell system |
| JP5299944B2 (en) * | 2008-01-23 | 2013-09-25 | 本田技研工業株式会社 | Fuel cell power supply |
| JP5095452B2 (en) * | 2008-03-14 | 2012-12-12 | 鹿島建設株式会社 | Internal resistance measuring device for response delay type fuel cell |
| JP5791070B2 (en) * | 2011-03-25 | 2015-10-07 | 大阪瓦斯株式会社 | Solid oxide fuel cell system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329532A (en) * | 1976-08-31 | 1978-03-18 | Fujitsu Ten Ltd | Inspection device for automobile battery |
| JPS56156274U (en) * | 1980-04-22 | 1981-11-21 |
-
1984
- 1984-11-29 JP JP59250556A patent/JPH0622159B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61131373A (en) | 1986-06-19 |
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