CHARGING AND DISCHARGING APPARATUS AND METHOD OF BATTERY

The present invention relates to a charging and discharging apparatus of a battery, and more particularly, to a charging and discharging apparatus of a battery capable of evenly charging respective battery cells whose charging and discharging characteristics are different from each other because cap...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHO JUNG-GOO, KANG JAE-BONG
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 present invention relates to a charging and discharging apparatus of a battery, and more particularly, to a charging and discharging apparatus of a battery capable of evenly charging respective battery cells whose charging and discharging characteristics are different from each other because capacities and internal resistances of the respective battery cells connected to each other in series do not completely coincide with each other, in an apparatus of charging and discharging a battery in which a plurality of battery cells are connected to each other in series. The charging and discharging apparatus of a battery includes: charging switches connected to respective battery cells in series; bypass switches short-circuiting both ends of the respective battery cells and the charging switches; a voltage sensor sensing voltages of the respective battery cells; a current sensor measuring a charging and discharging current; a power source providing the charging and discharging current; and a controller, and appr