DETECTING METHOD FOR DETECTING INTERNAL STATE OF A RECHARGEABLE BATTERY DETECTING DEVICE FOR PRACTICING SAID DETECTIONG METHOD AND INSTRUMENT PROVIDED WITH SAID DETECTING DEVICE

摘要

The internal state of the inspective rechargeable battery (B _a) detection method of detecting a (where internal state including a deterioration state, electricity storable capacity, remaining capacity, and internal resistance of the rechargeable battery (B _a) subject the test) is (1) _{a step} of providing basic data BD of a characteristic of a normal non-deteriorated rechargeable battery (B _n ) as a reference rechargeable battery for the inspective rechargeable battery (B _a ); And (2) measuring the voltage value and / or the current value of the inspective rechargeable battery and comparing the result of measurement with the basic data (BD) obtained in the above step (1) (B _a ) is in a deterioration mode, and detecting an internal state of the battery.