CONTROL METHOD FOR ALL-SOLID BATTERY

To provide a control method for an all-solid battery that is able to hinder degradation of battery performance.SOLUTION: A control method for an all-solid battery disclosed here comprises: a step of acquiring an estimation value of a voltage of the all-solid battery discharging, which is estimated based on a battery model not taking account of a change in a conduction path, resulting from a volume change of at least one of a cathode active material and an anode active material; a step of acquiring a measurement value of a voltage of the all-solid battery discharging; and a step of decreasing an electric current flowing in the all-solid battery when a value resulting from subtraction of the measurement value from the estimation value exceeds a threshold.SELECTED DRAWING: Figure 2 【課題】電池性能の低下を抑制できる全固体電池の制御方法を提供する。【解決手段】ここで開示される全固体電池の制御方法は、正極活物質および負極活物質の少なくとも一方の体積変化に起因した伝導パスの変動が考慮されていない電池モデルに基づいて推定される、放電中の全固体電池の電圧の推定値を取得するステップと、放電中の全固体電池の電圧の測定値を取得するステップと、推定値から測定値を減算した値が閾値を超える場合に、全固体電池の通電電流を下げるステップとを含む。【選択図】図２