Secondary battery system

The purpose of the present disclosure is to provide a secondary battery system capable of controlling charging and discharging so as to avoid a charging state in which a stop position of charging and discharging becomes a peak top. A secondary battery system according to one embodiment of the presen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NUMATA NAOKI, KOBAYASHI KEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The purpose of the present disclosure is to provide a secondary battery system capable of controlling charging and discharging so as to avoid a charging state in which a stop position of charging and discharging becomes a peak top. A secondary battery system according to one embodiment of the present disclosure is provided with: an electrical load (13) connected to a secondary battery (20); and a control device (40) that sets at least one peak-top SOC range including the SOC at the peak top in the SOC-dV/dQ curve, and terminates charging or discharging of the secondary battery (20) by avoiding the peak-top SOC range by discharging the secondary battery (20) by the electrical load (13) when charging or discharging is stopped within the peak-top SOC range, the SOC-dV/dQ curve is depicted by dV/dQ, which is the differential value of the amount of change dV in the voltage V of the secondary battery (20) with respect to the amount of change dQ in the capacity Q of the secondary battery (20), and the state of charg