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公开(公告)号：US08216720B2
公开(公告)日：2012-07-10
申请号：US10519073
申请日：2003-06-25
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 拉伸强度为50N / mm 2以上，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的机械特性 其特征在于，集电体的拉伸强度为80N / 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。
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公开(公告)号：US20050244711A1
公开(公告)日：2005-11-03
申请号：US10519073
申请日：2003-06-25
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 。
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公开(公告)号：US07141334B2
公开(公告)日：2006-11-28
申请号：US10463438
申请日：2003-06-18
IPC分类号： H01M4/62
CPC分类号： H01M10/052 , H01M4/0471 , H01M4/134 , H01M4/1395 , H01M4/386 , H01M4/525 , H01M4/621 , H01M4/624 , H01M4/661 , H01M10/0567 , H01M2004/027
摘要： A negative electrode for a lithium secondary battery obtained by providing an active material layer containing particles of an active material and a binder on a surface of a current collector which is an electrically conductive metal foil, and sintering the layer under a non-oxidizing atmosphere; wherein the mean diameter of the particles of the active material is not smaller than 1 μm and not greater than 10 μm, and the particle size distribution of the particles is such that at least 60 volume % of the particles are in a range of not smaller than 1 μm and not greater than 10 μm.
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公开(公告)号：US20080124631A1
公开(公告)日：2008-05-29
申请号：US11771552
申请日：2007-06-29
CPC分类号： H01M4/134 , H01M4/0404 , H01M4/38 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/622 , H01M4/625 , H01M4/64 , H01M4/661 , H01M2004/027
摘要： A lithium secondary battery includes an electrode assembly having a positive electrode (1), a negative electrode (2) having a negative electrode current collector and a negative electrode active material layer formed on a surface of the negative electrode current collector and composed of a binder and negative electrode active material particles containing silicon and/or a silicon alloy, and a separator (3) interposed between the electrodes. The electrode assembly is impregnated with a non-aqueous electrolyte. The binder contains a polyimide resin represented by the following chemical formula (1): where R contains at least a benzene ring, and n is within the range of from 10 to 100,000, and the negative electrode active material particles have an average particle size of 5 μm or greater.
摘要翻译： 锂二次电池包括具有正极（1）的电极组件，负极集电体的负极（2）和形成在负极集电体的表面上并由粘合剂构成的负极活性物质层 和含有硅和/或硅合金的负极活性物质粒子，以及夹在电极之间的隔膜（3）。 电极组件浸渍有非水电解质。 粘合剂含有下述化学式（1）表示的聚酰亚胺树脂：其中，R至少含有苯环，n在10〜100,000的范围内，负极活性物质粒子的平均粒径为 5岁以上。
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5.发明授权公开(公告)号：US07297446B2
公开(公告)日：2007-11-20
申请号：US10809848
申请日：2004-03-26
申请人： Atsushi Fukui , Mariko Torimae , Yasuyuki Kusumoto , Hisaki Tarui
发明人： Atsushi Fukui , Mariko Torimae , Yasuyuki Kusumoto , Hisaki Tarui
CPC分类号： H01M4/622 , H01M4/02 , H01M4/0471 , H01M4/386 , H01M4/661 , H01M4/70 , H01M10/052
摘要： A negative electrode for a rechargeable lithium battery which is obtained by sintering under a non-oxidizing atmosphere, in the form of a layer on a surface of a metal foil current collector, an anode mix containing a binder and particles of active material containing silicon and/or a silicon alloy; the negative electrode being characterized in that the metal foil current corrector has projections and recesses on its surface, the projection is shaped to have a recurved side face portion that curves more outwardly as it extends closer to a distal end of the projection, and the binder penetrates into spaces defined by the recurved side face portions.
摘要翻译： 一种用于可再充电锂电池的负极，其通过在金属箔集电器的表面上的非氧化性气氛下以层的形式烧结获得，含有粘合剂的阳极混合物和含有硅的活性材料颗粒， /或硅合金; 所述负极的特征在于，所述金属箔电流校正器在其表面上具有突起和凹部，所述突起被成形为具有弯曲的侧面部分，其在靠近所述突起的远端延伸时更向外弯曲，并且所述粘合剂 穿透由弯曲的侧面部分限定的空间。
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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。
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公开(公告)号：US20060003226A1
公开(公告)日：2006-01-05
申请号：US10531047
申请日：2004-06-04
申请人： Shouichirou Sawa , Hiroshi Minami , Mariko Torimae , Atsushi Fukui , Yasuyuki Kusumoto , Katsunobu Sayama , Maruo Kamino
发明人： Shouichirou Sawa , Hiroshi Minami , Mariko Torimae , Atsushi Fukui , Yasuyuki Kusumoto , Katsunobu Sayama , Maruo Kamino
CPC分类号： H01M10/052 , H01M4/0471 , H01M4/134 , H01M4/386 , H01M4/405 , H01M10/0567 , H01M10/058 , H01M2004/027 , Y10T29/49108
摘要： A rechargeable lithium battery including a negative electrode made by sintering, on a surface of a conductive metal foil as a current collector, a layer of a mixture of active material particles containing silicon and/or a silicon alloy and a binder, a positive electrode and a nonaqueous electrolyte, characterized in that the nonaqueous electrolyte contains carbon dioxide dissolved therein.
摘要翻译： 一种可再充电锂电池，包括通过烧结制成的负极，作为集电体的导电金属箔的表面，含有硅和/或硅合金和粘合剂的活性物质颗粒的混合物层，正极和 非水电解质，其特征在于，所述非水电解质含有溶解在其中的二氧化碳。
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公开(公告)号：US20050123829A1
公开(公告)日：2005-06-09
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： H01M4/66 , H01M2/02 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/62 , H01M4/70 , H01M10/04 , H01M10/05 , H01M10/052 , H01M10/0587 , H01M4/58
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，其中负极混合层的曲率半径与 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。
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公开(公告)号：US08771873B2
公开(公告)日：2014-07-08
申请号：US11771552
申请日：2007-06-29
IPC分类号： H01M4/13
CPC分类号： H01M4/134 , H01M4/0404 , H01M4/38 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/622 , H01M4/625 , H01M4/64 , H01M4/661 , H01M2004/027
摘要： A lithium secondary battery includes an electrode assembly having a positive electrode (1), a negative electrode (2) having a negative electrode current collector and a negative electrode active material layer formed on a surface of the negative electrode current collector and composed of a binder and negative electrode active material particles containing silicon and/or a silicon alloy, and a separator (3) interposed between the electrodes. The electrode assembly is impregnated with a non-aqueous electrolyte. The binder contains a polyimide resin represented by the following chemical formula (1): where R contains at least a benzene ring, and n is within the range of from 10 to 100,000, and the negative electrode active material particles have an average particle size of 5 μm or greater.
摘要翻译： 锂二次电池包括具有正极（1）的电极组件，负极集电体的负极（2）和形成在负极集电体的表面上并由粘合剂构成的负极活性物质层 和含有硅和/或硅合金的负极活性物质粒子，以及夹在电极之间的隔膜（3）。 电极组件浸渍有非水电解质。 粘合剂含有下述化学式（1）表示的聚酰亚胺树脂：其中，R至少含有苯环，n在10〜100,000的范围内，负极活性物质粒子的平均粒径为 5μm以上。
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10.发明授权公开(公告)号：US08211569B2
公开(公告)日：2012-07-03
申请号：US10531047
申请日：2004-06-04
申请人： Shouichirou Sawa , Hiroshi Minami , Mariko Torimae , Atsushi Fukui , Yasuyuki Kusumoto , Katsunobu Sayama , Maruo Kamino
发明人： Shouichirou Sawa , Hiroshi Minami , Mariko Torimae , Atsushi Fukui , Yasuyuki Kusumoto , Katsunobu Sayama , Maruo Kamino
IPC分类号： H01M6/14 , H01M4/134 , H01M4/1395
CPC分类号： H01M10/052 , H01M4/0471 , H01M4/134 , H01M4/386 , H01M4/405 , H01M10/0567 , H01M10/058 , H01M2004/027 , Y10T29/49108
摘要： A rechargeable lithium battery including a negative electrode made by sintering, on a surface of a conductive metal foil as a current collector, a layer of a mixture of active material particles containing silicon and/or a silicon alloy and a binder, a positive electrode and a nonaqueous electrolyte, characterized in that the nonaqueous electrolyte contains carbon dioxide dissolved therein.
摘要翻译： 一种可再充电锂电池，包括通过烧结制成的负极，作为集电体的导电金属箔的表面，含有硅和/或硅合金和粘合剂的活性物质颗粒的混合物层，正极和 非水电解质，其特征在于，所述非水电解质含有溶解在其中的二氧化碳。
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