| 摘要 |
PROBLEM TO BE SOLVED: To provide an internal impedance measuring method of a storage battery in which an instrumentation condition in the respective storage batteries constituting the storage battery group is not changed, and influence of external disturbances of noises or the like is little. SOLUTION: In the internal impedance measuring method of the storage battery in which the internal impedances of the respective storage batteries of the storage battery group wherein a plurality of the storage batteries are connected in series are measured by using an alternating current supply means and an alternating voltage measuring means, as for the alternating current supply means, the wave form of a flowing discharge current when connected to the storage battery is substantially made to be sine wave form. COPYRIGHT: (C)2004,JPO
|
