Title:
蓄電池診断装置
Document Type and Number:
Japanese Patent JP7370491
Kind Code:
B2
Abstract:
An ammeter measures current when a storage battery having a plurality of single batteries connected in series is charged or discharged. A voltmeter measures total voltage of the storage battery. A calculation device calculates dV/dt obtained by differentiating the total voltage with respect to time on the basis of a relationship between the total voltage and charging time or discharging time, separates a characteristic peak obtained by a dV/dt curve into peaks for the respective single batteries, and diagnoses soundness of the storage battery on the basis of the separated peaks.
Inventors:
Akira Shirakami
Tomomi Takegami
Tomomi Takegami
Application Number:
JP2023501754A
Publication Date:
October 27, 2023
Filing Date:
February 25, 2021
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01R31/392; G01R31/396
Domestic Patent References:
| JP2019184581A | ||||
| JP2019113414A | ||||
| JP2018091701A | ||||
| JP2017129493A | ||||
| JP2021089140A | ||||
| JP2022532544A |
Foreign References:
| WO2021020250A1 | ||||
| WO2019181138A1 | ||||
| WO2019069435A1 | ||||
| CN111551860A |
Attorney, Agent or Firm:
Parumo Patent Attorneys Office
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