Title :
On the removing of a less quality battery from a series-connected system
Author :
Harada, K. ; Taniguchi, S. ; Adachi, K. ; Ariyoshi, G. ; Kawata, Y.
Author_Institution :
Kyushu Electr. Power Co. Inc., Fukuoka, Japan
Abstract :
When charging a battery system of series connection, it is desired to remove a deteriorated unit of unbalanced voltage without stopping the charging process. For this purpose, a novel method is presented in this paper, where a parallel switch is used for short circuiting the less quality unit and a series diode is used for preventing the rush current accompanied to the short circuit. The experiment was done on the series connection of lithium-ion cells and a satisfactory result was obtained
Keywords :
battery chargers; failure analysis; lithium; power MOSFET; reliability; secondary cells; Li-ion secondary cells; battery system charging; deteriorated unit removal; rush current prevention; series-connected battery system; short circuit; unbalanced voltage; Acceleration; Batteries; Current supplies; Diodes; Lithium; Safety; Switches; Switching circuits; Temperature; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 2000. INTELEC. Twenty-second International
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-6407-4
DOI :
10.1109/INTLEC.2000.884334
