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    • 1. 发明授权
    • Device and method for charging a secondary battery
    • 二次电池充电的装置和方法
    • US06608469B2
    • 2003-08-19
    • US10079463
    • 2002-02-22
    • Kazuhito FukuokaNobuo TanakaYoshiro Takeda
    • Kazuhito FukuokaNobuo TanakaYoshiro Takeda
    • H02J700
    • H02J7/0073
    • The device for charging a secondary battery, comprises: a measuring circuit for measuring the terminal voltage of the battery; a control circuit for controlling a charging current fed through the battery; and an abnormality determining portion which starts a preliminary charging of the battery (S2), finishes the charging (S4) when the voltage of the battery has reached a first threshold value which is decided based on the normal-state upper limit of the internal resistance and the current of the battery (S3), measures the open-circuit voltage of the battery after finishing the charging, determines that the battery is abnormal when the open-circuit voltage is less than a second threshold value (S5), determines that the battery is abnormal when the open-circuit voltage is larger than a third threshold value for detecting that the battery is abnormal (S5), and indicates that the battery is abnormal (S9).
    • 用于对二次电池充电的装置包括:用于测量电池的端子电压的测量电路; 用于控制通过电池馈送的充电电流的控制电路; 以及开始电池(S2)的预充电的异常判定部,当电池的电压达到基于内部电阻的正常状态上限决定的第一阈值时,结束充电(S4) 并且电池的电流(S3)在完成充电后测量电池的开路电压,当开路电压小于第二阈值(S5)时,判断为电池异常(S5),判定为 当开路电压大于用于检测电池异常的第三阈值时,电池异常(S5),并且指示电池异常(S9)。