WO2019225032A1 - Procédé pour déterminer la capacité d'une batterie rechargeable, et dispositif de surveillance de capacité - Google Patents

Procédé pour déterminer la capacité d'une batterie rechargeable, et dispositif de surveillance de capacité Download PDF

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Publication number
WO2019225032A1
WO2019225032A1 PCT/JP2018/041411 JP2018041411W WO2019225032A1 WO 2019225032 A1 WO2019225032 A1 WO 2019225032A1 JP 2018041411 W JP2018041411 W JP 2018041411W WO 2019225032 A1 WO2019225032 A1 WO 2019225032A1
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capacity
storage battery
discharge
voltage
predetermined
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PCT/JP2018/041411
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English (en)
Japanese (ja)
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朗 土橋
優 三浦
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古河電池株式会社
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Publication of WO2019225032A1 publication Critical patent/WO2019225032A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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

Definitions

  • the present invention relates to a storage battery capacity determination method for determining the storage battery capacity and a capacity monitoring device for monitoring the storage battery capacity.
  • Patent Document 1 Conventionally, as a method for grasping the capacity of a storage battery, for example, there is a battery remaining capacity calculation method disclosed in Patent Document 1.
  • the degree of deterioration of the battery is calculated by the controller.
  • the degree of deterioration of the battery is calculated using the rate of increase of the internal resistance of the battery from the initial resistance value, or the capacity when the battery is discharged with a constant current until the discharge voltage reaches the specified end-of-discharge voltage. And calculated.
  • SOC State Of Charge
  • the basic remaining capacity of the battery is calculated by the controller using the initial capacity of the fully charged battery at the time of a new product and the calculated SOC.
  • a first correction value based on the battery capacity deterioration state is calculated by the controller.
  • a second correction value based on the discharge state is calculated by the controller using the discharge current and the degree of deterioration. Then, the calculated basic remaining capacity of the battery is multiplied by the first correction value and the second correction value, and the actual remaining capacity of the battery is calculated by the controller.
  • the present invention has been made to solve such problems, A capacity obtained by a simple capacity test performed by stopping the constant current discharge of the storage battery at a discharge end voltage higher than a predetermined discharge end voltage, a discharge end voltage correction coefficient predetermined for each discharge end voltage, and each storage battery Multiplying a predetermined temperature correction coefficient according to the temperature and a predetermined capacity deterioration correction coefficient according to each capacity deterioration state of the storage battery to stop the constant current discharge of the storage battery at a predetermined discharge end voltage.
  • capacitance grasping method of the storage battery which estimates the capacity
  • the present invention also provides: A charge / discharge device for charging / discharging the storage battery; A current sensor for measuring a current flowing in the storage battery by charging / discharging by the charging / discharging device; A voltage sensor for measuring the voltage across the terminals of the storage battery; A temperature sensor for measuring the temperature of the storage battery; A discharge end voltage correction coefficient predetermined according to each discharge end voltage, a temperature correction coefficient predetermined according to each storage battery temperature, and a capacity deterioration correction coefficient predetermined according to each capacity deterioration state of the storage battery A storage device for storing Charge / discharge control means for controlling the charge / discharge device based on the current value measured by the current sensor, the voltage value measured by the voltage sensor, and the temperature measured by the temperature sensor, and the charge / discharge control means are controlled to be predetermined.
  • Capacity test control means for performing a simple capacity test by stopping constant current discharge of the storage battery at a discharge end voltage higher than the discharge end voltage of the battery, and a discharge end voltage correction coefficient stored in the storage device in the capacity obtained by the simple capacity test
  • a storage battery capacity monitoring device was configured.
  • the capacity obtained by performing constant current discharge to a discharge end voltage higher than a predetermined discharge end voltage is multiplied by a predetermined discharge end voltage correction coefficient, temperature correction coefficient, and capacity deterioration correction coefficient.
  • prescribed discharge end voltage can be estimated. For this reason, it becomes possible to grasp
  • a capacity test is performed in a predetermined temperature environment for an undegraded storage battery and a storage battery having a different capacity deterioration state deteriorated from an undegraded state until the discharge end voltage is reached.
  • the relationship between each discharge voltage in the predetermined range and the capacity at each discharge voltage is measured for each capacity deterioration state, and the capacity for a specific discharge voltage in the predetermined range or the average value of the capacity for a plurality of discharge voltages in the predetermined range And the actual capacity of the storage battery, it is calculated for each capacity deterioration state.
  • each discharge voltage in a predetermined range and the capacity at each discharge voltage for the undegraded storage battery and the deteriorated storage battery having different capacity deterioration states up to the discharge end voltage is determined for each capacity deterioration state.
  • an appropriate capacity deterioration correction coefficient can be calculated.
  • the present invention performs a capacity test on an undegraded storage battery in a predetermined temperature environment to measure a reference measurement capacity for each discharge voltage in the predetermined range, and the measured storage battery in a predetermined temperature environment.
  • Perform a capacity test to calculate the actual measured capacity for the specific discharge voltage from the discharge time and discharge current at the specific discharge voltage within the predetermined range, and calculate the actual measured capacity and the specific discharge voltage that was measured.
  • the capacity deterioration state of the storage battery to be measured is estimated from the ratio of the measured capacity to the reference measurement capacity, and a capacity deterioration correction coefficient for the estimated capacity deterioration state is used.
  • the capacity deterioration state of the storage battery to be measured is estimated from the ratio between the calculated actual measurement capacity and the measured reference measurement capacity. Can do. Therefore, it is possible to specify the capacity deterioration correction coefficient based on the estimated capacity deterioration state and use the capacity deterioration correction coefficient.
  • the present invention is characterized in that the storage battery to be measured has been used for a predetermined period since the start of use, or the previous estimation result of capacity is not more than a predetermined capacity.
  • the storage battery in which it has become difficult to specify the capacity deterioration state after a predetermined period of time has elapsed since the start of use, or the degree of progress of deterioration is less than the predetermined capacity deterioration state when the estimation result of the capacity deterioration state previously performed is less than the predetermined capacity deterioration state.
  • the capacity deterioration state can be estimated for the storage battery whose capacity deterioration state has become difficult to identify early. Therefore, also for these storage batteries, the capacity deterioration correction coefficient can be specified based on the estimated capacity deterioration state, and the capacity deterioration correction coefficient can be used.
  • the present invention calculates the end-of-discharge voltage correction coefficient from the ratio of the reference measured capacity and the rated capacity for each discharge voltage measured by performing a capacity test on an undegraded storage battery in a predetermined temperature environment.
  • an appropriate discharge end voltage correction coefficient can be calculated from the ratio of the standard measured capacity and the rated capacity for each discharge voltage.
  • the temperature correction coefficient has a measured capacity at each temperature measured by performing a capacity test on each undegraded storage battery in an environment of a plurality of temperatures within the usable temperature range of the storage battery, and a predetermined temperature. It is calculated from a ratio with a rated capacity measured by performing a capacity test on an undegraded storage battery in an environment.
  • an appropriate temperature correction coefficient can be calculated from the ratio between the measured capacity at each usable temperature of the storage battery and the rated capacity at a predetermined temperature.
  • the present invention is characterized in that the measured capacity is measured in an environment of a plurality of temperatures measured within a predetermined time after the capacity test is started.
  • the capacity test is performed after the heat generated in the storage battery is radiated and returned to the environmental temperature when the storage battery is fully charged, but heat is generated in the storage battery due to a chemical reaction even during the discharge of the capacity test.
  • it is possible to calculate an appropriate temperature correction coefficient that is not affected by heat due to discharge by measuring the measured capacity under the environment of the temperature measured within a predetermined time after starting the capacity test. it can.
  • a specific battery cell constituting a storage battery is overdischarged and does not adversely affect the life of the storage battery, and the storage battery capacity grasping method that can grasp the capacity of the storage battery, and the capacity for monitoring the storage battery capacity A monitoring device can be provided.
  • FIG. 1 is a block diagram showing a schematic configuration of a capacity monitoring device 2 of a lead storage battery 1 according to this embodiment.
  • the lead storage battery 1 is configured as an assembled battery in which a plurality of unit batteries 1a are connected in series.
  • the capacity monitoring device 2 includes a charge / discharge device 3, a current sensor 4, a voltage sensor 5, a temperature sensor 6, a data logger 7, and an industrial computer 8.
  • the charging / discharging device 3 charges and discharges the lead storage battery 1.
  • the current sensor 4 is provided between the lead storage battery 1 and the charge / discharge device 3 and measures a current I flowing through the lead storage battery 1 by charging / discharging by the charge / discharge device 3.
  • the voltage sensor 5 measures the voltage V between the terminals of the lead storage battery 1, and the temperature sensor 6 measures the temperature of the lead storage battery 1.
  • the data logger 7 is measured by the current value of the current I flowing through the lead storage battery 1 measured by the current sensor 4, the voltage value of the terminal voltage V of the lead storage battery 1 measured by the voltage sensor 5, and the temperature sensor 6. The temperature of the lead storage battery 1 is collected and transferred to the industrial computer 8.
  • the industrial computer 8 constitutes a control device having charge / discharge control means, capacity test control means, and storage battery capacity grasping means, and includes a storage device.
  • the charge / discharge control means controls the charge / discharge device 3 based on the current value of the current I flowing through the lead storage battery 1 transferred by the data logger 7, the voltage value of the lead storage battery 1, and the temperature of the lead storage battery 1.
  • the capacity test control means controls the charge / discharge control means to stop the constant current discharge of the lead storage battery 1 at a discharge end voltage higher than a prescribed discharge end voltage, and performs a simple capacity test on the lead storage battery 1.
  • the regular capacity test is stipulated in Japanese Industrial Standard JIS C-8704-2-1, and the lead-acid battery 1 is stopped at a constant discharge of 1.8 [V] / cell. This is done by measuring the capacity of 1.
  • the storage battery capacity grasping means uses the measured capacity Q obtained by the simple capacity test, the discharge end voltage correction coefficient ⁇ , the temperature correction coefficient ⁇ , and the capacity deterioration correction coefficient ⁇ stored in the storage device in the following equation (1). By multiplying as shown, the capacity obtained by the normal capacity test is estimated as SOH (State Of Health) [Ah].
  • SOH [Ah] measured capacity Q [Ah] ⁇ discharge end voltage correction coefficient ⁇ ⁇ temperature correction coefficient ⁇ ⁇ Capacity deterioration correction coefficient ⁇ (1)
  • SOH represents the capacity deterioration state of the lead storage battery 1, and its initial value is 100% indicating that it is not deteriorated.
  • the industrial computer 8 performs a simple capacity test and calculates the SOH by the equation (1), the calculation result is stored in the storage device and updated.
  • the discharge end voltage correction coefficient ⁇ shown in FIG. 2 (a) is a standard measured capacity [Ah] for each discharge voltage [V] measured by performing a capacity test on an undegraded lead storage battery 1 in an environment of a predetermined temperature. It can be calculated from the ratio with the rated capacity [Ah].
  • a lead storage battery 1 that is undegraded and has a rated capacity of 1000 [Ah] at an ambient temperature of 25 ° C., 0.1 CA until the voltage V between the terminals reaches a specified end-of-discharge voltage of 1.8 [V] / cell.
  • a capacity test is performed by discharging at a constant current of 100 [A]. By multiplying each time in the capacity test by a current of 100 [A], the relationship between the voltage [V] between the terminals of the unit battery 1a and the reference measured capacity [Ah] shown in FIG. It is done. In this relationship, the standard measurement capacity [Ah] when the inter-terminal voltage [V] is 1.8 [V] is the rated capacity.
  • an appropriate discharge end voltage correction coefficient ⁇ can be calculated from the ratio between the standard measured capacity [Ah] and the rated capacity [Ah] for each discharge voltage [V].
  • the temperature correction coefficient ⁇ shown in FIG. 2B is obtained at each temperature measured by performing a capacity test on each undegraded lead storage battery 1 in an environment of a plurality of temperatures within the usable temperature range of the lead storage battery 1. It can be calculated from the ratio between the measured capacity [Ah] and the rated capacity [Ah] measured by performing a capacity test on an undegraded storage battery in a predetermined temperature environment.
  • a lead storage battery 1 that is undegraded and has a rated capacity of 1000 [Ah] under an environment of a temperature of ⁇ 5 ° C.
  • the voltage V between the terminals is 0 until the specified end-of-discharge voltage is 1.8 [V] / cell.
  • the capacity of the lead storage battery 1 was 800 [Ah].
  • capacitance of the lead storage battery 1 was 930 [Ah] and 1000 [Ah].
  • 1000 [Ah] measured in an environment of a predetermined temperature of 25 ° C. is a rated capacity.
  • the measured capacity [Ah] at each temperature is measured in an environment of a plurality of temperatures measured within a predetermined time, for example, within 10 minutes after starting the capacity test.
  • the predetermined time is preferably shorter than 10 minutes.
  • an appropriate temperature correction coefficient ⁇ can be calculated from the ratio between the measured capacity [Ah] at each usable temperature of the lead storage battery 1 and the rated capacity [Ah] at a predetermined temperature. .
  • the capacity test is performed after the heat generated in the lead storage battery 1 is dissipated and returned to the environmental temperature when the lead storage battery 1 is fully charged. Heat is generated.
  • an appropriate temperature correction coefficient ⁇ that is not affected by the heat caused by the discharge. Can be calculated.
  • the capacity deterioration correction coefficient ⁇ shown in FIG. 2C is calculated for the undegraded lead storage battery 1 and the lead storage battery 1 having a different capacity deterioration state gradually deteriorated from the undegraded state by the cycle test.
  • the capacity test is performed in an environment of a predetermined temperature of 25 ° C.
  • the capacity deterioration correction coefficient ⁇ is based on the relationship between the measured discharge voltage V and the capacity Q, and a specific discharge voltage (eg, 1.86 [V] in a predetermined range (eg, 1.9 to 1.8 [V] / cell). ] / Cell) and the ratio between the capacity of the storage battery and the actual capacity of the storage battery.
  • a lead storage battery 1 that is undegraded and has a rated capacity of 1000 [Ah] at an ambient temperature of 25 ° C., 0.1 CA until the voltage V between the terminals reaches a specified end-of-discharge voltage of 1.8 [V] / cell. Discharge at a constant current of 100 [A], and a capacity test is performed. With the voltage measured by the voltage sensor 5 at each time during the capacity test, for example, the charge / discharge curve A of the graph shown in FIG. 3 is obtained for the unit battery 1a. The horizontal axis of the graph is the discharge time [h], and the vertical axis is the terminal voltage (discharge voltage) V of the unit battery 1a.
  • the SOH of the lead storage battery 1 exhibiting the characteristics of the charge / discharge curves A, B, C and D is 100%, 90%, 80% and 70%, respectively, and their actual capacity [Ah] is 1000 [Ah], 900 [Ah], 800 [Ah], and 700 [Ah].
  • the capacity deterioration correction coefficient ⁇ is, for example, measurement points a, b, c, d (see FIG. 3) for a plurality of discharge voltages V in a predetermined range (eg, 1.9 to 1.8 [V] / cell). Also from the ratio between the average value of the capacity and the actual capacity of the lead storage battery 1, it can be calculated for each capacity deterioration state.
  • the lead storage battery 1 in an undegraded state and the lead storage battery 1 in a deteriorated capacity deterioration state are thus 1.9 to 1 up to a discharge end voltage of 1.8 [V] / cell. 3 by measuring the relationship between each discharge voltage [V] within a predetermined range of 8 [V] and the capacity [Ah] at each discharge voltage [V] for each capacity deterioration state as shown in the graph of FIG. An appropriate capacity deterioration correction coefficient ⁇ can be calculated.
  • the capacity deterioration correction coefficient ⁇ can be defined as 1.12 from FIG. If the value of SOH [%] is 85% or more, the capacity deterioration correction coefficient ⁇ can be obtained by referring to FIG. 2C from the result of the capacity test one to two years ago. It is. However, when the time interval for carrying out the capacity test is two years or more, the deterioration of the lead storage battery 1 progresses, and the result of the previous capacity test and the actual capacity may be greatly different.
  • the capacity of the lead storage battery 1 is less than 85%, the deterioration of the lead storage battery 1 may be accelerated, and the capacity deterioration correction coefficient ⁇ should be obtained from the result of the capacity test one to two years ago. I can't.
  • a capacity test is performed on the undegraded lead storage battery 1 in an environment of a predetermined temperature, and a predetermined range (eg, 1.9 to 1.8 [V] / cell) is measured as a reference measurement capacity [Ah] for each discharge voltage [V]. Then, a capacity test is performed on the lead storage battery 1 to be measured under an environment of a predetermined temperature, and the discharge time and the discharge current at a specific discharge voltage [V] within a predetermined range are used for the specific discharge voltage [V]. The actual measurement capacity [Ah] is calculated.
  • a predetermined range eg, 1.9 to 1.8 [V] / cell
  • the capacity deterioration state of the lead storage battery 1 to be measured Is estimated, and the capacity deterioration correction coefficient ⁇ for the estimated SOH is used.
  • a capacity test in which an undegraded lead storage battery 1 having a rated capacity of 1000 [Ah] is discharged at a constant current of 100 [A] at a discharge rate of 0.1 CA in an environment of a predetermined temperature of 25 ° C. is as follows: The measurement was performed until a specific discharge voltage of 1.9 [V] / cell within a predetermined range of 9 to 1.8 [V] / cell was obtained. As a result, an actual measurement capacity of 730 [Ah] was obtained from the product of the discharge time and the discharge current of 100 [A]. In this case, from the relationship between the discharge voltage [V] and the reference measurement capacity [Ah] shown in FIG.
  • the ratio of the measured actual measurement capacity 730 [Ah] and the measured reference measurement capacity 820 [Ah] is measured.
  • the SOH [%] of the target lead storage battery 1 can be estimated. Therefore, the capacity deterioration correction coefficient ⁇ can be specified as described above based on the estimated SOH [%], and the capacity deterioration correction coefficient ⁇ can be used.
  • the SOH [%] can be estimated for the lead storage battery 1 whose SOH is 85% or less and the progress of deterioration is accelerated and the capacity deterioration state is difficult to specify. Therefore, the capacity deterioration correction coefficient ⁇ can also be specified for these lead storage batteries 1 based on the estimated SOH [%], and the capacity deterioration correction coefficient ⁇ can be used.
  • the capacity of the lead storage battery 1 with a rated capacity of 1000 [Ah] is grasped by the industrial computer 8 as follows. First, the charge / discharge device 3 is controlled by the industrial computer 8 so that the lead storage battery 1 is fully charged. Thereafter, the lead storage battery 1 is dissipated until the temperature measured by the temperature sensor 6 reaches a predetermined temperature. When the lead storage battery 1 reaches the environmental temperature, the industrial computer 8 controls the charge / discharge device 3 to perform a simple capacity test. That is, the lead storage battery 1 is discharged at a discharge rate of 0.1 CA, and the voltage sensor 5 causes the terminal voltage V of the lead storage battery 1 to a specific discharge end voltage higher than a specified discharge end voltage 1.8 [V] / cell.
  • the industrial computer 8 measures the capacity [Ah] of the lead storage battery 1 from the discharge current and discharge time of 100 [A] during the simple capacity test.
  • the industrial computer 8 has the capacity Q [Ah] obtained by the simple capacity test performed by stopping the constant current discharge at a specific discharge end voltage higher than the specified discharge end voltage 1.8 [V] / cell.
  • the discharge end voltage correction coefficient ⁇ , the temperature correction coefficient ⁇ , and the capacity deterioration correction coefficient ⁇ are multiplied as shown in the equation (1) to obtain a constant current at a specified discharge end voltage of 1.8 [V] / cell.
  • SOH [Ah] obtained by a normal capacity test performed by stopping discharge is estimated.
  • the discharge end voltage correction coefficient ⁇ is determined from the relationship shown in FIG. 1.12, the temperature correction coefficient ⁇ is 1.00 with respect to 25 ° C. from the relationship shown in FIG. If SOH [%] obtained by the previous capacity test is 90%, the capacity deterioration correction coefficient ⁇ is 1.14 from the relationship shown in FIG. Accordingly, the SOH [Ah] of the lead storage battery 1 at that time is expressed by the following equation (2) when each coefficient value is substituted into the equation (1).
  • SOH [Ah] measured capacity Q [Ah] ⁇ 1.12 ⁇ 1.00 ⁇ 1.14 (2)
  • the measured capacity Q is 900 [ Ah].
  • an accurate capacity measurement can be performed, but if the specific unit cell 1a is deteriorated, the unit cell 1a having a low inter-terminal voltage is overdischarged, and the life of the lead storage battery 1 is shortened. For this reason, in order to prevent such deterioration of the unit cell 1a, a simple capacity test was performed with a discharge end voltage of 1.86 [V] / cell, and the measured capacity Q was 710 [Ah]. An error of 190 [Ah] or more occurs in the results of the normal capacity test and the simple capacity test.
  • the measured value 900 [Ah] in the regular capacity test is an error of 6.5 [Ah], and the error can be reduced.
  • the capacity [Ah] obtained by performing constant current discharge to a discharge end voltage higher than a specified discharge end voltage is predetermined. Estimating the capacity [Ah] of the lead storage battery 1 obtained by performing constant current discharge up to a specified discharge end voltage by multiplying the discharge end voltage correction coefficient ⁇ , the temperature correction coefficient ⁇ , and the capacity deterioration correction coefficient ⁇ . Can do. For this reason, it becomes possible to grasp
  • SYMBOLS 1 Lead storage battery, 1a ... Single cell, 2 ... Capacity monitoring apparatus, 3 ... Charge / discharge device, 4 ... Current sensor, 5 ... Voltage sensor, 6 ... Temperature sensor, 7 ... Data logger, 8 ... Industrial computer

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Abstract

L'invention concerne un procédé pour déterminer la capacité d'une batterie rechargeable et un dispositif de surveillance de capacité, dans lesquels des unités batteries spécifiques qui constituent une batterie rechargeable ne se déchargent pas excessivement et ne compromettent pas la durée de vie de la batterie rechargeable. Un ordinateur industriel (8) commande un dispositif de charge et de décharge (3), prévient une décharge à courant constant à une tension de fin de décharge spécifique (par exemple 1,86 [V]/élément) dans une plage prescrite (par exemple 1,9-1,8 [V]/élément) qui est supérieure à une tension de fin de décharge stipulée de 1,8 [V]/élément, et réalise un test de capacité simple. Chaque élément du groupe comprenant un coefficient de correction de tension de fin de décharge α, un coefficient de correction de température β et un coefficient de correction de détérioration de capacité γ est multiplié par une capacité Q [Ah], obtenue par le test de capacité simple ; et un état de santé [Ah], obtenu par un test de capacité formelle réalisé en prévenant une décharge à courant constant à la tension de fin de décharge stipulée de 1,8 [V]/élément, est estimé.
PCT/JP2018/041411 2018-05-21 2018-11-07 Procédé pour déterminer la capacité d'une batterie rechargeable, et dispositif de surveillance de capacité WO2019225032A1 (fr)

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JP2018097265A JP6430054B1 (ja) 2018-05-21 2018-05-21 蓄電池の容量把握方法および容量監視装置
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WO2021134829A1 (fr) * 2019-12-31 2021-07-08 深圳市普兰德储能技术有限公司 Système de test de batterie

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CN112098862B (zh) * 2020-08-04 2023-03-28 中汽研汽车检验中心（天津）有限公司 一种锂离子电池单体过放电耐受能力的测试和评价方法
WO2023149302A1 (fr) * 2022-02-03 2023-08-10 古河電気工業株式会社 Système d'accumulateur au plomb et procédé d'estimation de durée de vie d'accumulateur au plomb
WO2023149304A1 (fr) * 2022-02-03 2023-08-10 古河電気工業株式会社 Système d'accumulateur au plomb et procédé d'estimation de durée de vie d'accumulateur au plomb
WO2023149303A1 (fr) * 2022-02-03 2023-08-10 古河電気工業株式会社 Système de batterie d'accumulateurs au plomb-acide et procédé d'estimation de durée de vie de batterie d'accumulateurs au plomb-acide
WO2023149301A1 (fr) * 2022-02-03 2023-08-10 古河電気工業株式会社 Système de batterie d'accumulateurs au plomb-acide et procédé d'estimation de durée de vie de batterie d'accumulateurs au plomb-acide
WO2024111395A1 (fr) * 2022-11-25 2024-05-30 エナジーウィズ株式会社 Système de gestion de batterie, procédé de gestion de batterie et programme de gestion de batterie

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WO2021134829A1 (fr) * 2019-12-31 2021-07-08 深圳市普兰德储能技术有限公司 Système de test de batterie

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