Power storage device, cell, balance operation method, and program

Abstract

A power storage device includes: a plurality of series-connected battery cells (); a balance circuit () that is provided for each of the plurality of battery cells (), and is connected with corresponding one of the battery cells; a first temperature sensor () that is provided for every one or more of the balance circuits (), and measures a temperature of a corresponding balance circuit (); and a control unit () that stops an operation of the corresponding balance circuit () when a first measured temperature measured by the first temperature sensor () is equal to or more than a first upper reference temperature, and restarts an operation of the corresponding balance circuit () when the first measured temperature becomes equal to or less than a first lower reference temperature that is lower than the first upper reference temperature after an operation of the corresponding balance circuit () is stopped.