Patent ID: 8456132
Filing Date: 2013-06-04
Classification: H01M,H02J,Y02E

Abstract:
1. A secondary battery system comprising: a plurality of secondary batteries connected in series, each having a positive electrode and a negative electrode; a plurality of first diodes, each having an anode and a cathode, the anode being connected to the negative electrode of a corresponding secondary battery; a plurality of second diodes, each having an anode and a cathode, the cathode being connected to the positive electrode of the corresponding secondary battery, and the anode being connected to the cathode of a corresponding one of the plurality of first diodes; a plurality of capacitors connected to a plurality of junction portions, each junction portion being a connection between the cathode of a first diode of the plurality of first diodes and the anode of a second diode of the plurality of second diodes; at least one resistor for charging and discharging the plurality of capacitors; and an alternating current power source connected to the junction portions through the plurality of capacitors, the alternating current power source selectively operating to produce an alternating current voltage; wherein the alternating current power source has a cycle of the alternating current voltage that is less than 100 times a time constant provided by multiplying a resistance value of the at least one resistor and a capacitance value of each of the plurality of capacitors.