| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a secondary battery system improved in power efficiency of the entire system.SOLUTION: A secondary battery system of the present application is a secondary battery system including: a secondary battery unit which includes a plurality of battery cells operating by being heated and connected in series and a heating heater for the battery cells; and a control apparatus for measuring voltage of each battery cell and charging each battery cell while heating by the heating heater. The secondary battery unit includes a discharging heater that consumes power of the battery cells to heat at least one battery cell among the plurality of battery cells. When the voltage of a part of the battery cells increases to a predetermined upper limit voltage or more, the control apparatus controls such that power of the part of the battery cells is supplied to the discharging heater.</p> |
