POWER STORAGE DEVICE AND POWER STORAGE DEVICE CONTROL METHOD

摘要

This power storage device is provided with: a battery unit comprising multiple power storage element units arranged in rows, each power storage element unit having at least one power storage element; a cell balance circuit which is connected in parallel with the multiple power storage element units and which performs cell balance operations between the multiple power storage element units; a control unit which controls the cell balance current flowing through the cell balance circuit; a total current measurement unit which measures the current value of the total current flowing through the entire battery unit; and a cell balance current measurement unit which measures the current value of the cell balance current.