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    • 10. 发明授权
    • Charging/discharging control unit for lithium secondary battery
    • 锂二次电池充放电控制单元
    • US08421418B2
    • 2013-04-16
    • US12541612
    • 2009-08-14
    • Yoshiaki KumashiroYoshimi YanaiEiji Seki
    • Yoshiaki KumashiroYoshimi YanaiEiji Seki
    • H02J7/00
    • H02J7/0086
    • In a charging/discharging unit provided with: a lithium secondary battery, a voltage detecting sensor for detecting a voltage and a current detecting sensor; the charging/discharging control unit is further provided with a controller, and a discharging element for performing a constant voltage discharging operation of 3 V. A voltage, V0, of the battery when a discharging operation is terminated (t=0) is measured by the voltage detecting sensor. If V0≦3.6 V, within a rest time during which the battery is not charged/discharged until a next charging operation, a voltage, V1, of the battery when a time, t1, has elapsed is measured by the voltage detecting sensor. If this voltage charge is in a range of V1-V0≧0.2 V, then the constant voltage discharging operation of 3 V is carried out for a time duration longer than or equal to 1 hour.
    • 在具有锂二次电池,用于检测电压的电压检测传感器和电流检测传感器的充电/放电单元中, 充放电控制单元还设置有控制器和用于执行3V的恒定电压放电操作的放电元件。当放电操作终止时,电池的电压V0(t = 0)通过 电压检测传感器。 如果V0≦̸ 3.6V,则在电池在下一次充电操作之前未被充电/放电的休息时间内,当经过时间t1时,电池的电压V1由电压检测传感器测量。 如果该电压在V1-V0≥0.2V的范围内,则3V的恒定电压放电动作持续时间大于等于1小时。