Storage battery analysis system, storage battery analysis method, and storage battery analysis program

摘要

To accurately estimate the deterioration state of a storage battery. Data of time-series changes in voltage value and current value at the time of charging in a storage battery 183 measured at the beginning of use within a certain period from the start of use, and measured at the analysis target time after the lapse of the certain period. Storage device 11 storing voltage value and current value data of time series change at the time of charging in storage battery 183, data of time series change of voltage value and current value at the time of charge measured in the initial use, Data of time series changes of voltage value and current value at the time of charging measured at the time to be analyzed is read from the storage device 11, and the data of each time series change read out here is compared to compare the initial use and the analysis. An arithmetic unit that performs a process of specifying a difference in the time series change between the target times and storing the information on the difference in the storage device 11 as an index indicating the deterioration state of the storage battery 183 From 4 which make up the battery analysis system.