STORAGE BATTERY ANALYSIS SYSTEM, STORAGE BATTERY ANALYSIS METHOD AND STORAGE BATTERY ANALYSIS PROGRAM

摘要

A storage battery analysis system includes a storage device storing data of time series variation of a voltage value and a current value during a charging period of a storage battery and data of time series variation of the voltage value and the current value during the charging period of the storage battery; and an arithmetic device that executes a process to read out the time series variation data of the voltage value and the current value during the charging period of the battery, compares the read time series variation data, identifies a difference in the time series variation between the initial usage period and the analysis period, and stores in the storage device the difference as an index indicating a degradation state of the storage battery.