ENERGY STORAGE APPARATUS AND CHARGE CONTROL METHOD FOR THE SAME

An energy storage apparatus (10) includes: an assembled battery including a plurality of energy storage devices, a discharge shutoff device (43) incorporating a parasitic diode (43D), configured to switch a path of a charge to the assembled battery to a path through the parasitic diode, a voltage de...

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Bibliographische Detailangaben
1. Verfasser:	SHIRAISHI, Takeyuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 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:	An energy storage apparatus (10) includes: an assembled battery including a plurality of energy storage devices, a discharge shutoff device (43) incorporating a parasitic diode (43D), configured to switch a path of a charge to the assembled battery to a path through the parasitic diode, a voltage detection circuit (31) configured to detect a cell voltage of the energy storage device and a battery voltage of the assembled battery, and a battery management unit (30). When the cell voltage in at least one energy storage device among the plurality of energy storage devices is higher than a full charge voltage and equal to or more than an equalization start threshold value lower than an overcharge voltage, a CPU (33) of the battery management unit switches a path of the charge to the assembled battery to a path through the parasitic diode (43D) with the discharge shutoff device.