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    Lithium secondary battery and control system therefor, and method for detecting state of lithium secondary battery
    4.
    发明授权
    Lithium secondary battery and control system therefor, and method for detecting state of lithium secondary battery 有权
    锂二次电池及其控制系统，以及锂二次电池的状态检测方法

    公开(公告)号：US09018916B2

    公开(公告)日：2015-04-28

    申请号：US13811837

    申请日：2011-07-20

    申请人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Ryuichi Kasahara ,  Tatsuji Numata

    发明人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Ryuichi Kasahara ,  Tatsuji Numata

    IPC分类号： H02H3/24 ,  G01R31/36 ,  H01M4/485 ,  H01M10/44 ,  H01M10/48 ,  G06F17/15 ,  H02J7/00

    CPC分类号： H01M10/48 ,  G01R31/362 ,  G01R31/3648 ,  G06F17/15 ,  H01M4/485 ,  H01M10/44 ,  H02J7/00 ,  H02J7/007 ,  Y02E60/122 ,  Y02P70/54

    摘要： There is provided a control system for a lithium secondary battery that can quantitatively sense a deterioration state inherent in a lithium secondary battery using silicon oxide as a negative electrode active material, that is, the nonuniform reaction state of a negative electrode. A control system for a lithium secondary battery including a positive electrode, a negative electrode using silicon oxide as a negative electrode active material, and a lithium reference electrode having a reference potential with respect to the negative electrode includes measurement means for measuring a voltage V of the negative electrode with respect to the lithium reference electrode and a discharge capacity Q of the lithium secondary battery during discharge of the lithium secondary battery; generation means for generating a V-dQ/dV curve representing a relationship between dQ/dV, which is a proportion of an amount of change dQ in the discharge capacity Q to an amount of change dV in the voltage V, and the voltage V; calculation means for calculating an intensity ratio of two peaks appearing on the V-dQ/dV curve for two voltage values in the voltage V; and sensing means for sensing a state of the negative electrode utilizing the intensity ratio.

    摘要翻译： 提供了一种锂二次电池的控制系统，其可以使用氧化硅作为负极活性物质，即负极的不均匀的反应状态来定量地感测锂二次电池固有的劣化状态。 一种锂二次电池的控制系统，包括正电极，使用氧化硅作为负电极活性材料的负极和相对于负电极具有参考电位的锂参比电极，包括用于测量电压V的电压V的测量装置 相对于锂参考电极的负极和锂二次电池放电期间的锂二次电池的放电容量Q; 用于产生表示作为放电容量Q中的变化量dQ与电压V中的变化量dV的比例的dQ / dV与电压V之间的关系的V-dQ / dV曲线的生成装置; 用于计算在V-dQ / dV曲线上出现的两个电压在电压V中的两个电压值的强度比的计算装置; 以及感测装置，用于利用强度比来感测负极的状态。

    METHOD FOR DOPING AND DEDOPING LITHIUM INTO AND FROM NEGATIVE ELECTRODE AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY
    7.
    发明申请
    METHOD FOR DOPING AND DEDOPING LITHIUM INTO AND FROM NEGATIVE ELECTRODE AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY 有权
    用于将锂离子和负极电极掺入和掺入的方法和用于生产用于锂二次电池的负极的方法

    公开(公告)号：US20140076729A1

    公开(公告)日：2014-03-20

    申请号：US14114948

    申请日：2012-04-06

    申请人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Tatsuji Numata

    发明人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Tatsuji Numata

    IPC分类号： H01M4/04 ,  H01M4/485

    CPC分类号： H01M4/0459 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/485 ,  Y02E60/122 ,  Y02P70/54

    摘要： The object of an exemplary embodiment of the invention is to provide a negative electrode having excellent cycle property. An exemplary embodiment of the invention a method for doping and dedoping lithium for the first time after a negative electrode for a lithium secondary battery comprising silicon oxide as an active material is produced, comprising doping the lithium within the following current value range (A) and within the following doped amount range (B); current value range (A): a range of a current value in which a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve becomes maximum, wherein the V-dQ/dV curve represents a relationship between voltage V of the negative electrode with respect to a lithium reference electrode and dQ/dV that is a ratio of variation dQ of lithium dedoped amount Q in the negative electrode to variation dV of the voltage V, and doped amount range (B): a range of a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve.

    摘要翻译： 本发明的示例性实施方案的目的是提供具有优异的循环性能的负极。 本发明的一个示例性实施方案是制备在包含氧化硅作为活性材料的锂二次电池的负极之后首次掺杂和去掺杂锂的方法，包括在随后的电流值范围（A）和 在下面的掺杂量范围（B）内; 电流值范围（A）：其中在V-dQ / dV曲线上仅出现1V或更小的一个峰值的掺杂量的电流值的范围变得最大，其中V-dQ / dV曲线表示 负极的电压V与锂参比电极之间的关系和作为负极中的脱锂量Q的变化量dQ与电压V的变化dV的比的dQ / dV以及掺杂量范围（B） ：在V-dQ / dV曲线上只有一个峰出现在1V或更小的掺杂量的范围。

    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    8.
    发明申请
    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    用于二次电池的负极及其制造方法和非电解电解质二次电池

    公开(公告)号：US20130244086A1

    公开(公告)日：2013-09-19

    申请号：US13820369

    申请日：2011-08-25

    申请人： Jiro Iriyama ,  Daisuke Kawasaki ,  Ryuichi Kasahara ,  Tetsuya Kajita ,  Tatsuji Numata

    发明人： Jiro Iriyama ,  Daisuke Kawasaki ,  Ryuichi Kasahara ,  Tetsuya Kajita ,  Tatsuji Numata

    IPC分类号： H01M4/62 ,  H01M4/66

    CPC分类号： H01M4/622 ,  C22C9/00 ,  C22C9/02 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/662 ,  H01M2004/027

    摘要： Provided are a negative electrode for a secondary battery realizing satisfactory cycle characteristics and a method for manufacturing the same, and a nonaqueous electrolyte secondary battery having satisfactory cycle characteristics. A negative electrode for a secondary battery formed by bonding a negative electrode active material to a negative electrode collector with a negative electrode binder, in which the negative electrode binder is a polyimide or a polyamide-imide, and the negative electrode collector is a Cu alloy containing at least one metal (a) selected from the group consisting of Sn, In, Mg and Ag and has a conductivity of 50 IACS % or more. The negative electrode for a secondary battery can be manufactured by a method including forming a negative electrode layer containing the negative electrode active material and the precursor of the negative electrode binder on the negative electrode collector; and bonding the negative electrode active material to the negative electrode collector with the negative electrode binder by curing the precursor of the negative electrode binder at 250 to 350° C.

    摘要翻译： 提供一种实现令人满意的循环特性的二次电池用负极及其制造方法以及具有令人满意的循环特性的非水电解质二次电池。 通过将负极活性物质与负极粘合剂（负极粘合剂为聚酰亚胺或聚酰胺 - 酰亚胺）结合的负极活性物质形成的负极，负极集电体为Cu合金 含有选自Sn，In，Mg和Ag中的至少一种金属（a），并且具有50IACS％以上的导电率。 可以通过在负极集电体上形成含有负极活性物质的负极层和负极活性物质的前体的方法来制造二次电池用负极; 并通过在250-350℃固化负极粘合剂的前体，将负极活性物质与负极粘合剂结合。

    Method for doping and dedoping lithium into and from negative electrode and method for producing negative electrode for lithium secondary battery
    10.
    发明授权
    Method for doping and dedoping lithium into and from negative electrode and method for producing negative electrode for lithium secondary battery 有权
    从负极中掺杂和去掺杂锂的方法和用于生产锂二次电池的负极的方法

    公开(公告)号：US09123928B2

    公开(公告)日：2015-09-01

    申请号：US14114948

    申请日：2012-04-06

    申请人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Tatsuji Numata

    发明人： Jiro Iriyama ,  Tetsuya Kajita ,  Daisuke Kawasaki ,  Tatsuji Numata

    IPC分类号： H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/485

    CPC分类号： H01M4/0459 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/485 ,  Y02E60/122 ,  Y02P70/54

    摘要： The object of an exemplary embodiment of the invention is to provide a negative electrode having excellent cycle property. An exemplary embodiment of the invention a method for doping and dedoping lithium for the first time after a negative electrode for a lithium secondary battery comprising silicon oxide as an active material is produced, comprising doping the lithium within the following current value range (A) and within the following doped amount range (B); current value range (A): a range of a current value in which a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve becomes maximum, wherein the V-dQ/dV curve represents a relationship between voltage V of the negative electrode with respect to a lithium reference electrode and dQ/dV that is a ratio of variation dQ of lithium dedoped amount Q in the negative electrode to variation dV of the voltage V, and doped amount range (B): a range of a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve.

    摘要翻译： 本发明的示例性实施方案的目的是提供具有优异的循环性能的负极。 本发明的一个示例性实施方案是制备在包含氧化硅作为活性材料的锂二次电池的负极之后首次掺杂和去掺杂锂的方法，包括在随后的电流值范围（A）和 在下面的掺杂量范围（B）内; 电流值范围（A）：其中在V-dQ / dV曲线上仅出现1V或更小的一个峰值的掺杂量的电流值的范围变得最大，其中V-dQ / dV曲线表示 负极的电压V与锂参比电极之间的关系和作为负极中的脱锂量Q的变化量dQ与电压V的变化dV的比的dQ / dV以及掺杂量范围（B） ：在V-dQ / dV曲线上只有一个峰出现在1V或更小的掺杂量的范围。