STORAGE CELL DETERIORATION DETERMINATION DEVICE, STORAGE CELL DETERIORATION DETERMINATION METHOD AND STORAGE CELL DETERIORATION DETERMINATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To precisely determine deterioration of a storage cell on the basis of equalization control normally performed by a storage apparatus equipped with an equalization control circuit, without providing a configuration exclusively used for determining the deterioration of the storage cell.SOLUTION: A storage cell deterioration determination device comprises: an equalization control circuit that is connected to each of the storage cells in parallel; and an arithmetic processor that controls the equalization control circuit and has an equalization frequency storage unit for storing equalization control frequency. The arithmetic processor is configured to: decide an equalization control target cell requiring the equalization control, among the storage cells; apply the equalization control for an equalization control target cell to the equalization control target cell; increase equalization frequency of each storage cell, which is stored in the equalization frequency storage unit, with respect to the storage cell after the equalization control; and determine deterioration of each storage cell on the basis of the equalization frequency of each cell stored in the equalization frequency storage unit.