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    • 101. 发明授权
    • Method for determining a state of a rechargeable battery device in real time
    • 用于实时确定可再充电电池装置的状态的方法
    • US09091735B2
    • 2015-07-28
    • US12912407
    • 2010-10-26
    • Shuoqin WangMark W. VerbruggeJohn S. WangPing Liu
    • Shuoqin WangMark W. VerbruggeJohn S. WangPing Liu
    • G01R31/36
    • G01R31/3651G01R31/3624
    • A method of determining and predicting a state of a rechargeable battery device in real time involves measuring a current and a voltage of the rechargeable battery in real time, inputting the measured current and voltage into an algorithm, and applying the algorithm to determine the state of the rechargeable battery. The algorithm includes a first mathematical model based on a direct solution of at least one differential equation characterizing an equivalent RC circuit of the battery as a function of time. The first model generates a plurality of parameters that are usable to determine the state of the battery. The algorithm further includes a second mathematical model configured to regress the parameters over time, and a third mathematical model configured to estimate the state of the battery.
    • 实时地确定和预测可再充电电池装置的状态的方法包括实时地测量可再充电电池的电流和电压,将测量的电流和电压输入到算法中,并且应用该算法来确定 充电电池。 该算法包括基于表征电池的等效RC电路的至少一个微分方程作为时间的函数的直接解的第一数学模型。 第一模型产生可用于确定电池状态的多个参数。 该算法还包括被配置为随着时间推移退化参数的第二数学模型,以及被配置为估计电池的状态的第三数学模型。
    • 110. 发明申请
    • METHOD AND APPARATUS FOR ASSESSING BATTERY STATE OF HEALTH
    • 用于评估电池状态的方法和装置
    • US20120105069A1
    • 2012-05-03
    • US12916743
    • 2010-11-01
    • John S. WangPing LiuShuoqin WangSouren SoukiazianMark W. Verbrugge
    • John S. WangPing LiuShuoqin WangSouren SoukiazianMark W. Verbrugge
    • G01N27/416
    • G01R31/3679
    • A method for monitoring a lithium-ion battery cell includes monitoring a battery cell voltage and a corresponding charge capacity of the battery cell during an electric power event which may include either an electric power charge event or an electric power discharge event. A measured charge-capacity-derivative is determined by differentiating the charge capacity in relation to the corresponding battery cell voltage during the electric power event. The measured charge-capacity-derivative is compared with a preferred anode charge-capacity-derivative of an anode charge curve (for electric power discharge events) or an anode discharge curve (for electric power charge events), and with a preferred cathode charge-capacity-derivative of a cathode charge curve (for electric power charge events) or a cathode discharge charge curve (for electric power discharge events). A first state of health parameter of the battery cell corresponding to the comparison of the measured charge-capacity-derivative with the preferred anode charge-capacity-derivative of the anode curve is determined. And, a second state of health parameter of the battery cell corresponding to the comparison of the measured charge-capacity-derivative with the preferred cathode charge-capacity-derivative of the cathode curve is determined.
    • 一种用于监视锂离子电池单元的方法包括在可能包括电力充电事件或电力放电事件的电力事件期间监测电池单体电压和电池单元的相应充电容量。 通过在电力事件期间相对于相应的电池单元电压区分充电容量来确定测量的充电容量导数。 将测量的电荷 - 导数与阳极充电曲线(用于电力放电事件)或阳极放电曲线(用于电力充电事件)的优选阳极充电 - 电荷 - 导数进行比较,并且优选的阴极充电 - 阴极充电曲线(用于电力充电事件)或阴极放电电荷曲线(用于电力放电事件)的电容导数。 确定对应于测量的电荷 - 容量衍生物与阳极曲线的优选阳极电荷 - 能量 - 导数的比较的电池单元的第一健康状态参数。 并且,确定对应于测量的电荷 - 容量衍生物与阴极曲线的优选阴极电荷 - 能力 - 导数的比较的电池单元的第二健康状态参数。