| 摘要 |
PROBLEM TO BE SOLVED: To perform self-discharge inspection for a storage battery with high precision and in a shorter time.SOLUTION: A self-discharge inspection device 1 for a storage battery inspects self-discharge amounts of the same type of storage batteries 11a to 11d, and comprises a voltage measurement section 5, a changeover section 3 and a processing section 6. The changeover section 3 is disposed between the storage batteries 11a to 11d and the voltage measurement section 5, and outputs, to the voltage measurement section 5, a potential difference V2 between a reference storage battery 11a obtained by regarding the one storage battery 11a of the storage batteries 11a to 11d as a reference storage battery and the remaining storage batteries 11b to 11d. The processing section 6, in a state in which each of the storage batteries 11b to 11d is self-discharged for the same time period after charged with the same charging voltage, performs: potential difference measurement processing for controlling the changeover section 3 to cause the voltage measurement section 5 to sequentially measure the potential differences V2 between the reference storage battery 11a and all the remaining storage batteries 11b to 11d, and acquiring the potential difference V2; and discharge amount inspection processing for inspecting the self-discharge amounts of the storage batteries 11a to 11d on the basis of each of the potential differences V2 thus acquired. |
