REMAINING CAPACITY OPERATING DEVICE AND ITS METHOD FOR SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a remaining capacity operating device and its method capable of accurately estimating the remaining capacity of the secondary battery. SOLUTION: This remaining capacity operating device for the secondary battery comprises a temperature measuring part for measuring a temperature, a remaining capacity estimating part for estimating the remaining capacity of the secondary battery on the basis of the self-discharge electric capacity derived on the basis of a table or a function applying the temperature in self-discharging and the elapsed time from the start of self-discharging to the present as parameters, and the capacity effectively reduced by memory effect generated by the repeating of charging and self-discharging, and an output part for outputting the information of the remaining capacity. COPYRIGHT: (C)2004,JPO&NCIPI