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    Method and system for determining state of charge of an energy delivery device
    5.
    发明授权
    Method and system for determining state of charge of an energy delivery device 有权
    用于确定能量输送装置的充电状态的方法和系统

    公开(公告)号：US08855956B2

    公开(公告)日：2014-10-07

    申请号：US12477382

    申请日：2009-06-03

    Applicant: Karen E. Thomas-Alyea

    Inventor： Karen E. Thomas-Alyea

    IPC: G01R19/00 ,  G01R31/36

    CPC classification number: G01R31/362 ,  G01R31/3606 ,  G01R31/3648 ,  G01R31/3679

    Abstract: A method of determining state of charge of an energy delivery device includes sampling voltage values of the energy delivery device during relaxation of the device. The method further includes regressing an open circuit voltage value and the total overpotential being relaxed. The regression includes a predetermined time constant of relaxation associated with the energy delivery device. One embodiment uses the equation V(t)=OCV−α exp(−t/tau), where V(t) represents the sampled voltage values, t represents times at which each of the voltage values are sampled, OCV represents the open circuit voltage value of the energy delivery device, αrepresents the overpotential value, and tau represents the time constant of relaxation. The method uses a predetermined profile that relates open circuit voltage of the energy delivery device to state of charge of the device, to determine a particular state of charge corresponding to the regressed open circuit voltage value.

    Abstract translation: 确定能量输送装置的充电状态的方法包括在放松装置期间采集能量输送装置的电压值。 该方法还包括回路开路电压值，并且总过电压松弛。 回归包括与能量输送装置相关联的预定的松弛时间常数。 一个实施例使用等式V（t）= OCV-αexp（-t /τ），其中V（t）表示采样电压值，t表示每个电压值被采样的时间，OCV表示开路 能量输送装置的电压值α表示过电位值，τ表示放电的时间常数。 该方法使用将能量输送装置的开路电压与装置的充电状态相关联的预定曲线，以确定对应于回退开路电压值的特定充电状态。

    DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS
    6.
    发明申请
    DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS 审中-公开
    具有梯度的电极的设计和制造

    公开(公告)号：US20120328942A1

    公开(公告)日：2012-12-27

    申请号：US13582778

    申请日：2011-03-07

    Applicant: Karen E. Thomas-Alyea ,  Richard K. Holman ,  Gilbert N. Riley, JR. ,  Susan J. Babinec

    Inventor： Karen E. Thomas-Alyea ,  Richard K. Holman ,  Gilbert N. Riley, JR. ,  Susan J. Babinec

    IPC: H01M4/64

    CPC classification number: H01M4/587 ,  H01M2004/021

    Abstract: An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient. The secondary gradient is one or more gradients selected from the group consisting of particle size gradient, particle size distribution gradient, particle morphology gradient, particle internal porosity, bulk porosity, particle volumetric charge-transfer resistance gradient, particle specific surface area gradient, particle crystalline structure gradient, particle crystallite size gradient, particle chemical composition gradient, particle robustness to cycling gradient, binder gradient, conductive additive gradient, and combinations thereof.

    Abstract translation: 电极具有与集电体最远的前面和最靠近集电体的背面，并且设置在集电体上，并且电极具有电活性颗粒组合物的化学，物理和性能之一的一级梯度 在前面和后面之间，条件是主梯度不是体积孔隙度梯度。 在一些实施例中，电极还包括暴露于主梯度上的一个或多个次级梯度。 次级梯度是选自粒度梯度，粒度分布梯度，颗粒形态梯度，颗粒内部孔隙率，体积孔隙率，颗粒体积电荷转移阻力梯度，颗粒比表面积梯度，颗粒结晶度的一个或多个梯度 结构梯度，颗粒微晶尺寸梯度，颗粒化学组成梯度，颗粒对循环梯度的鲁棒性，粘合剂梯度，导电添加剂梯度及其组合。

    METHOD AND SYSTEM FOR DETERMINING STATE OF CHARGE OF AN ENERGY DELIVERY DEVICE
    9.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING STATE OF CHARGE OF AN ENERGY DELIVERY DEVICE 有权
    用于确定能量输送装置的充电状态的方法和系统

    公开(公告)号：US20090326842A1

    公开(公告)日：2009-12-31

    申请号：US12477382

    申请日：2009-06-03

    Applicant: Karen E. THOMAS-ALYEA

    Inventor： Karen E. THOMAS-ALYEA

    IPC: G01R19/00

    CPC classification number: G01R31/362 ,  G01R31/3606 ,  G01R31/3648 ,  G01R31/3679

    Abstract: A method of determining state of charge of an energy delivery device includes sampling voltage values of the energy delivery device during relaxation of the device. The method further includes regressing an open circuit voltage value and the total overpotential being relaxed. The regression includes a predetermined time constant of relaxation associated with the energy delivery device. One embodiment uses the equation V(t)=OCV−α exp(−t/tau), where V(t) represents the sampled voltage values, t represents times at which each of the voltage values are sampled, OCV represents the open circuit voltage value of the energy delivery device, α represents the overpotential value, and tau represents the time constant of relaxation. The method uses a predetermined profile that relates open circuit voltage of the energy delivery device to state of charge of the device, to determine a particular state of charge corresponding to the regressed open circuit voltage value.

    Abstract translation: 确定能量输送装置的充电状态的方法包括在放松装置期间采集能量输送装置的电压值。 该方法还包括回路开路电压值，并且总过电压松弛。 回归包括与能量输送装置相关联的预定的松弛时间常数。 一个实施例使用等式V（t）= OCV-αexp（-t /τ），其中V（t）表示采样电压值，t表示每个电压值被采样的时间，OCV表示开路 能量输送装置的电压值，α表示过电位值，τ表示放松的时间常数。 该方法使用将能量输送装置的开路电压与装置的充电状态相关联的预定曲线，以确定对应于回退开路电压值的特定充电状态。

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