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    Negative electrode for lithium secondary battery, method of manufacturing the electrode, and lithium secondary battery
    1.
    发明授权
    Negative electrode for lithium secondary battery, method of manufacturing the electrode, and lithium secondary battery 失效
    锂二次电池用负极，电极的制造方法以及锂二次电池

    公开(公告)号：US08343657B2

    公开(公告)日：2013-01-01

    申请号：US11657092

    申请日：2007-01-24

    申请人： Hiroshi Minami ,  Atsushi Fukui ,  Yasuyuki Kusumoto

    发明人： Hiroshi Minami ,  Atsushi Fukui ,  Yasuyuki Kusumoto

    IPC分类号： H01M4/58

    CPC分类号： H01M4/0435 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/621 ,  H01M4/625 ,  H01M4/661

    摘要： In a lithium secondary battery using a negative electrode having a negative electrode mixture layer formed on a surface of a negative electrode current collector, the mixture layer made of a binder and negative electrode active material particles of silicon and/or a silicon alloy, charge-discharge cycle performance is improved without degrading the capacity per unit volume, by making the negative electrode mixture layer sufficiently adhere to the negative electrode current collector. The negative electrode has a negative electrode mixture layer composed of a binder and negative electrode active material particles of silicon and/or a silicon alloy. The negative electrode mixture layer is formed on a surface of the negative electrode current collector by sintering. Negative electrode active material particles are partially embedded in the negative electrode current collector.

    摘要翻译： 在使用在负极集电体的表面形成有负极混合层的负极的锂二次电池中，由粘合剂构成的混合层和硅和/或硅合金的负极活性物质粒子， 通过使负极混合物层充分地粘附到负极集电体，可以提高放电循环性能，而不降低单位体积的容量。 负极具有由粘合剂和硅和/或硅合金的负极活性物质粒子构成的负极混合层。 通过烧结在负极集电体的表面上形成负极合剂层。 负极活性物质粒子部分嵌入负极集电体。

    Lithium secondary battery and method for manufacturing the same
    2.
    发明授权
    Lithium secondary battery and method for manufacturing the same 有权
    锂二次电池及其制造方法

    公开(公告)号：US08338022B2

    公开(公告)日：2012-12-25

    申请号：US11001192

    申请日：2004-12-02

    申请人： Atsushi Fukui ,  Hiroshi Minami ,  Shoichiro Sawa ,  Mariko Torimae ,  Yasuyuki Kusumoto ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Hiroshi Minami ,  Shoichiro Sawa ,  Mariko Torimae ,  Yasuyuki Kusumoto ,  Maruo Kamino

    IPC分类号： H01M2/02

    CPC分类号： H01M10/052 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M4/622 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0587 ,  H01M2004/021 ,  Y10T29/49108

    摘要： A lithium secondary battery of the present invention comprises a positive electrode formed by disposing a positive-electrode mixture layer containing a positive-electrode active material and a positive-electrode binder, on a surface of a positive-electrode current collector; a negative electrode formed by sintering a negative-electrode mixture layer containing a negative-electrode binder and a negative-electrode active material containing silicon and/or a silicon alloy, disposed on a surface of a negative-electrode current collector; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte; wherein an electrode unit obtained by setting the positive electrode and the negative electrode opposed to each other through the separator and rolling them in spirally rolled state is placed in a cylindrical battery container and wherein a curvature radius of the negative-electrode mixture layer opposed to the positive-electrode mixture layer through the separator in the spirally rolled state is 1.5 mm or larger.

    摘要翻译： 本发明的锂二次电池包括在正极集电体的表面上设置含有正极活性物质和正极粘合剂的正极合剂层而形成的正极， 通过在负极集电体的表面上烧结含有负极粘合剂的负极混合层和含有硅和/或硅合金的负极活性物质而形成的负极， 设置在所述正极和所述负极之间的隔膜; 和非水电解质; 其特征在于，将通过隔板相对的正极和负极通过将螺旋卷绕状态进行轧制而得到的电极单元配置在圆筒状的电池容器中，其中与负极混合层相对的曲率半径 螺旋状卷取状态的正极混合层通过隔膜的厚度为1.5mm以上。

    Lithium secondary battery, negative electrode therefor, and method of their manufacture
    4.
    发明申请
    Lithium secondary battery, negative electrode therefor, and method of their manufacture 审中-公开
    锂二次电池及其负极及其制造方法

    公开(公告)号：US20070072077A1

    公开(公告)日：2007-03-29

    申请号：US11527713

    申请日：2006-09-27

    申请人： Yasuyuki Kusumoto ,  Nobuhiro Sakitani

    发明人： Yasuyuki Kusumoto ,  Nobuhiro Sakitani

    IPC分类号： H01M4/38 ,  H01M4/62

    CPC分类号： H01M10/052 ,  H01M4/136 ,  H01M4/621 ,  H01M4/623 ,  Y02T10/7011 ,  Y10T29/49108

    摘要： A practical lithium secondary battery is provided having a greater battery capacity than in the case of using particulate graphite as its negative electrode active material but a less electrical resistance of its negative electrode mixture layer than in the case of using particulate Si as the negative electrode active material. The lithium secondary battery also exhibits good charge-discharge cycle performance. The lithium secondary battery is furnished with a negative electrode having negative electrode current collector and a negative electrode mixture layer that contains a Sn-based particulate negative electrode active material and a negative electrode binder. The negative electrode binder is melt-bonded to the Sn-based particulate negative electrode active material and/or the negative electrode current collector, and the Sn-based particulate negative electrode active material is made of an intermetallic compound represented as SnXM1-X, where 1>X≧1/2 and M is Mn, Fe, Co, or Ni.

    摘要翻译： 提供了一种实用的锂二次电池，其具有比在使用颗粒状石墨作为其负极活性物质时更大的电池容量，但是与使用颗粒状Si作为负极活性物质相比，其负极混合物层的电阻较小 材料。 锂二次电池也具有良好的充放电循环性能。 锂二次电池配备有负极集电体和含有Sn系粒子状负极活性物质和负极活性物质的负极混合层的负极。 负极粘合剂与Sn系粒子状负极活性物质和/或负极集电体熔融结合，Sn系粒子状负极活性物质由Sn X系金属间化合物 M 1-X 1，其中1> X> = 1/2，M是Mn，Fe，Co或Ni。

    Negative electrode for lithium secondary cell and lithium secondary cell
    9.
    发明申请
    Negative electrode for lithium secondary cell and lithium secondary cell 有权
    锂二次电池和锂二次电池用负极

    公开(公告)号：US20050244711A1

    公开(公告)日：2005-11-03

    申请号：US10519073

    申请日：2003-06-25

    申请人： Atsushi Fukui ,  Yasuyuki Kusumoto ,  MAriko Torimae ,  Hiroshi Nakamura

    发明人： Atsushi Fukui ,  Yasuyuki Kusumoto ,  MAriko Torimae ,  Hiroshi Nakamura

    IPC分类号： H01M4/134 ,  H01M4/38 ,  H01M4/40 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M10/36 ,  H01M4/58

    CPC分类号： H01M4/134 ,  H01M4/386 ,  H01M4/405 ,  H01M4/621 ,  H01M4/661 ,  H01M10/052

    摘要： A negative electrode for a lithium secondary cell having a collector composed of an electroconductive metal foil and, provided on the surface thereof, an active material layer containing active material particles containing silicon and/or a silicon alloy and a binder, characterized in that the binder has mechanical characteristics of a tensile strength of 50 N/mm2 or more, an elongation at break of 10% or more, a strain energy density of 2.5×10−3 J/mm3 or more and a coefficient of elasticity of 10000 N/mm2 or less, and preferably characterized in that the collector has mechanical characteristics of a tensile strength of 80 N/mm2 or more, a proportional limit 30 N/mm2 or more, an elongation at break of 1.0% or more and an elastic elongation limit of 0.03% or more.

    摘要翻译： 一种锂二次电池用负极，其具有由导电性金属箔构成的集电体，在其表面上设有包含含有硅和/或硅合金的活性物质粒子和粘合剂的活性物质层，其特征在于，所述粘合剂 具有拉伸强度为50N / mm 2以上的机械特性，断裂伸长率为10％以上，应变能​​密度为2.5×10 -3 J / mm 3以上，弹性系数为10000N / mm 2以下，其特征在于，集电体具有抗拉强度为80N的机械特性 / mm 2以上，比例范围为30N / mm 2以上，断裂伸长率为1.0％以上，弹性伸长极限为0.03％以上 。