公开(公告)号：US09281526B1

公开(公告)日：2016-03-08

申请号：US12629066

申请日：2009-12-02

申请人： Ping Liu ,  John Wang ,  Souren Soukiazian

发明人： Ping Liu ,  John Wang ,  Souren Soukiazian

IPC分类号： H01M4/02 ,  H01M8/02

CPC分类号： H01M8/02 ,  H01M4/02 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0445 ,  H01M10/0525 ,  H01M10/058 ,  Y02T10/7011

摘要： This invention provides batteries with improved calendar and cycle lifetimes. A rechargeable battery comprises an additional electrode that includes active ions, such as lithium ions. Cell capacity of the battery can be increased by supplying these active ions to the anode or the cathode. In some variations, this invention provides a lithium-ion battery comprising an anode, a cathode, an electrolyte, and an additional lithium-containing electrode, wherein the additional lithium-containing electrode is capable of supplying lithium ions to the anode or the cathode in the presence of an electrical current.

摘要翻译： 本发明提供了具有改进的日历和周期寿命的电池。 可充电电池包括包括诸如锂离子的活性离子的附加电极。 通过将这些活性离子提供给阳极或阴极，可以提高电池的电池容量。 在一些变型中，本发明提供了一种锂离子电池，其包括阳极，阴极，电解质和附加的含锂电极，其中所述另外的含锂电极能够将锂离子供应到阳极或阴极 存在电流。

公开(公告)号：US08531158B2

公开(公告)日：2013-09-10

申请号：US12916735

申请日：2010-11-01

申请人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

发明人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

IPC分类号： H02J7/00

CPC分类号： H01M10/0525 ,  H01M10/48

摘要： A method for monitoring a lithium-ion battery cell includes monitoring a battery cell voltage and a corresponding state of charge 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 potential-derivative is determined by differentiating the battery cell voltage in relation to the corresponding state of charge of the battery during the electric power event. The measured potential-derivative is compared with a preferred anode potential-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 potential-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 potential-derivative with the preferred anode potential-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 potential-derivative with the preferred cathode potential-derivative of the cathode curve is determined.

摘要翻译： 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元电压和电池单元的相应的充电状态。 通过在电力事件期间相对于电池的相应的充电状态来区分电池单体电压来确定测量的电位导数。 将测量的电位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）的优选阳极电位导数进行比较，并且与阴极的优选阴极电位导数 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）。 确定与测定的电位导数与阳极曲线的优选阳极电位导数的比较对应的电池单元的第一健康状态参数。 并且，确定与测定的电位导数与阴极曲线的优选阴极电位导数的比较对应的电池单元的第二状态健康参数。

公开(公告)号：US08680815B2

公开(公告)日：2014-03-25

申请号：US12916743

申请日：2010-11-01

申请人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

发明人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

IPC分类号： H02J7/00

CPC分类号： G01R31/3679

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120105069A1

公开(公告)日：2012-05-03

申请号：US12916743

申请日：2010-11-01

申请人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

发明人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

IPC分类号： G01N27/416

CPC分类号： G01R31/3679

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120105068A1

公开(公告)日：2012-05-03

申请号：US12916735

申请日：2010-11-01

申请人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

发明人： John S. Wang ,  Ping Liu ,  Shuoqin Wang ,  Souren Soukiazian ,  Mark W. Verbrugge

IPC分类号： G01N27/416

CPC分类号： H01M10/0525 ,  H01M10/48

摘要： A method for monitoring a lithium-ion battery cell includes monitoring a battery cell voltage and a corresponding state of charge 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 potential-derivative is determined by differentiating the battery cell voltage in relation to the corresponding state of charge of the battery during the electric power event. The measured potential-derivative is compared with a preferred anode potential-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 potential-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 potential-derivative with the preferred anode potential-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 potential-derivative with the preferred cathode potential-derivative of the cathode curve is determined.

摘要翻译： 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元电压和电池单元的相应的充电状态。 通过在电力事件期间相对于电池的相应的充电状态来区分电池单体电压来确定测量的电位导数。 将测量的电位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）的优选阳极电位导数进行比较，并且与阴极的优选阴极电位导数 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）。 确定与测定的电位导数与阳极曲线的优选阳极电位导数的比较对应的电池单元的第一健康状态参数。 并且，确定与测定的电位导数与阴极曲线的优选阴极电位导数的比较对应的电池单元的第二状态健康参数。

公开(公告)号：US10072990B1

公开(公告)日：2018-09-11

申请号：US15193040

申请日：2016-06-25

申请人： Chia-Ming Chang ,  John Wang ,  Geoffrey P McKnight ,  Ping Liu

发明人： Chia-Ming Chang ,  John Wang ,  Geoffrey P McKnight ,  Ping Liu

IPC分类号： G01K7/36 ,  G01R33/00 ,  G01K11/00 ,  G01K7/00 ,  G01K7/38

CPC分类号： G01K7/38 ,  G01K7/36 ,  G01R31/36 ,  G01R33/00 ,  G01R33/1223 ,  H01M10/486

摘要： A thermomagnetic sensor includes a thermomagnetic probe that includes a ferromagnetic material having a temperature-dependent magnetic permeability characterized by a maximum magnetic permeability value at a temperature below a Curie temperature of the ferromagnetic material. The thermomagnetic sensor further includes an alternating magnetic field source to produce an alternating magnetic field in a vicinity of the thermomagnetic probe to facilitate a measurement of the temperature-dependent magnetic permeability as function of temperature remotely using a thermomagnetic effect. A predetermined relationship between the temperature-dependent magnetic permeability and temperature in a range between the maximum magnetic permeability value and the Curie temperature provides a measurement of a temperature local to the thermomagnetic probe. A battery-temperature measurement system includes the thermomagnetic probe in a battery, a magnetic field coil to apply the alternating magnetic field, and a magnetic permeability measurement apparatus to measure the temperature-dependent magnetic permeability.

公开(公告)号：US09417290B1

公开(公告)日：2016-08-16

申请号：US13646663

申请日：2012-10-06

申请人： Shuoqin Wang ,  Ping Liu ,  John Wang

发明人： Shuoqin Wang ,  Ping Liu ,  John Wang

IPC分类号： G01R31/36 ,  G01R31/40 ,  G06F15/00 ,  G01R19/00

CPC分类号： G01R31/3651 ,  G01R31/362 ,  G01R31/3624 ,  G01R31/3679 ,  G06F15/00 ,  H01M8/02 ,  H01M10/42

摘要： The present invention provides impulse-response-based algorithms for high-speed characterization of electrochemical systems (e.g., batteries) with good accuracy. In some variations, a method for dynamic characterization of an electrochemical system comprises selecting an electrochemical system to be characterized; sensing the measured current to or from said electrochemical system; sensing the measured voltage across said electrochemical system; sensing or calculating the time derivatives of the measured current and voltage; and calculating an impulse response using a recursive or matrix-based algorithm (as disclosed herein), wherein said impulse response characterizes said electrochemical system within a selected sampling window. The algorithms are robust, incorporating noise-reduction techniques, and are suitable for real applications under various operating conditions. These algorithms, and the apparatus and systems to implement them, are able to accept various exciting signals to provide dynamic characterization of various states of the electrochemical system.

摘要翻译： 本发明提供了用于以高精度高速表征电化学系统（例如电池）的基于脉冲响应的算法。 在一些变型中，用于电化学系统的动态表征的方法包括选择要表征的电化学系统; 检测来自或来自所述电化学系统的测量电流; 感测所述电化学系统上的测量电压; 感测或计算测得的电流和电压的时间导数; 以及使用递归或基于矩阵的算法（如本文所公开）来计算脉冲响应，其中所述脉冲响应表征所选择的采样窗口内的所述电化学系统。 这些算法是稳健的，结合了降噪技术，适用于各种操作条件下的实际应用。 这些算法以及实现它们的装置和系统能够接受各种激励信号以提供电化学系统的各种状态的动态表征。

公开(公告)号：US09257719B1

公开(公告)日：2016-02-09

申请号：US12502234

申请日：2009-07-14

申请人： Ping Liu ,  Elena Sherman ,  John Wang

发明人： Ping Liu ,  Elena Sherman ,  John Wang

IPC分类号： H01M10/0567 ,  H01M4/583 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/133 ,  H01M4/382 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

摘要： This invention employs a diamine electrolyte additive that enhances performance of lithium-ion batteries both at high and low temperatures, thereby minimizing the conventional performance gap across a wide temperature range, such as −30° C. to 60° C. At low temperatures, diamine additives can enhances cycling kinetics. At high temperatures, diamine additives can minimize capacity fading. In some variations, a lithium-ion battery electrolyte composition comprises a non-aqueous solvent, a lithium salt soluble in the non-aqueous solvent, and a diamine additive having the formula H2N—R—NH2, wherein R is an organic group such as (—CH2—)n, n=2-12.

摘要翻译： 本发明采用在高温和低温下提高锂离子电池的性能的二胺电解质添加剂，从而最小化在宽温度范围（例如-30℃至60℃）下的常规性能间隙。在低温下， 二胺添加剂可增强循环动力学。 在高温下，二胺添加剂可以使容量衰减最小化。 在一些变型中，锂离子电池电解质组合物包含非水溶剂，可溶于非水溶剂的锂盐和具有式H2N-R-NH2的二胺添加剂，其中R是有机基团，例如 （-CH 2 - ）n，n = 2-12。

公开(公告)号：US08962190B1

公开(公告)日：2015-02-24

申请号：US13316501

申请日：2011-12-10

申请人： Adam F. Gross ,  John Wang ,  Tobias Schaedler ,  Hung Nguyen ,  Larken E. Euliss ,  Christopher Roper ,  Ping Liu

发明人： Adam F. Gross ,  John Wang ,  Tobias Schaedler ,  Hung Nguyen ,  Larken E. Euliss ,  Christopher Roper ,  Ping Liu

IPC分类号： H01M4/00 ,  H01M4/80 ,  H01M4/70 ,  H01M4/74

CPC分类号： H01M4/80 ,  H01M4/13 ,  H01M4/625 ,  H01M4/70 ,  H01M4/742 ,  H01M4/808

摘要： The current thickness limitations of battery electrodes are addressed. An electrode includes an electrically conductive porous foam layer, an energy-storage material in contact with the porous foam layer, and electrically conductive porous foam protrusions extending from the porous foam layer into the energy-storage material. The energy-storage material is not contained within the pores of the foam layer or the foam protrusions. These electrodes allow lithium ions (and other metal ions, if desired) to diffuse deeper into a thick energy-storage material layer, compared to conventional planar electrodes. In particular methods, fluidic foam precursors can be templated in a mold, followed by conversion into a solid conductive foam that includes the electrically conductive porous foam protrusions. The result is batteries with surprisingly high energy densities.

摘要翻译： 解决了电池电极的当前厚度限制。 电极包括导电多孔泡沫层，与多孔泡沫层接触的能量存储材料，以及从多孔泡沫层延伸到储能材料中的导电多孔泡沫突起。 能量储存材料不包含在泡沫层或泡沫突起的孔内。 与常规平面电极相比，这些电极允许锂离子（和其它金属离子，如果需要）扩散到较厚的储能材料层。 在具体的方法中，流体泡沫前体可以在模具中模板化，随后转变成包括导电多孔泡沫突起物的固体导电泡沫体。 结果是具有令人惊讶的高能量密度的电池。

公开(公告)号：US09658291B1

公开(公告)日：2017-05-23

申请号：US13751089

申请日：2013-01-27

申请人： Shuoqin Wang ,  Ping Liu ,  John Wang

发明人： Shuoqin Wang ,  Ping Liu ,  John Wang

IPC分类号： G01R31/36 ,  G06F17/00

CPC分类号： G01R31/3624 ,  G01R31/362 ,  G01R31/3651 ,  G01R31/3679 ,  G06F17/00 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/48 ,  H01M2010/4271

摘要： This invention provides methods for dynamic estimation of the open-circuit voltage of a battery. In some embodiments, an impulse response is calculated using a matrix-based algorithm or a recursive algorithm. Then, a current response is calculated by convolving the impulse response with the measured current. The open-circuit voltage of the battery is derived by subtracting the current response from the measured voltage. Using the principles disclosed to estimate OCV, a lithium-ion battery may be managed with a battery-state estimator that allows accurate and timely estimation of the state of charge, the charge and the discharge power capabilities, and the state of health of the battery. These methods are able to accept various exciting signals, are stable and robust against noises, even when diffusion is a limiting kinetic factor in the battery.