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    • 25. 发明授权
    • Degradation degree computing method and unit for battery
    • 降解度计算方法和电池单位
    • US06661202B2
    • 2003-12-09
    • US10209913
    • 2002-08-02
    • Youichi Arai
    • Youichi Arai
    • H02J700
    • G01R31/3662G01R31/3648G01R31/3679
    • A base resistance of the battery is obtained by cyclically measuring a discharge current and a voltage between a pair of terminals of the battery, while a rush current is flowing in an electric load electrically connected to the pair of the terminals. The rush current monotonically decreases from a peak to a constant value after the rush current monotonically increases from zero to the peak. A concentration polarization resistance and an activation polarization resistance of the battery are also obtained from the discharge current and the terminal voltage. A degradation degree of the battery is obtained by multiplying the degradation degrees of the base resistance and the polarization resistances together.
    • 电池的基极电阻是通过周期性地测量电池的一对端子之间的放电电流和电压而获得的,同时冲击电流在与该对端子电连接的电负载中流动。 在潮涌电流从零到峰值单调增加之后,冲击电流从峰值单调下降到恒定值。 也可以从放电电流和端子电压获得电池的浓度极化电阻和活化极化电阻。 通过将基极电阻的劣化程度和极化电阻相乘在一起来获得电池的劣化程度。