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    LITHIUM SECONDARY BATTERY
    1.
    发明申请
    LITHIUM SECONDARY BATTERY 审中-公开
    锂二次电池

    公开(公告)号：US20120082892A1

    公开(公告)日：2012-04-05

    申请号：US13242514

    申请日：2011-09-23

    申请人： Kei Kobayashi ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Kei Kobayashi ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M10/052

    CPC分类号： H01M4/661 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/662 ,  H01M4/667 ,  H01M10/052 ,  H01M2004/027

    摘要： A lithium secondary battery has a positive electrode, a separator, and a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on a surface of the negative electrode current collector. The negative electrode mixture layer contains a negative electrode active material including a metal element capable of alloying with lithium. The negative electrode current collector includes a substrate made of a Cu—Fe—P alloy foil, and a surface layer provided on both surfaces of the substrate and made of pure copper. The surface layer has a Vickers hardness of 120 and less than that of the substrate. The negative electrode current collector has a proof stress of 308 MPa.

    摘要翻译： 锂二次电池具有在负极集电体的表面上形成有负极集电体和负极混合层的正极，隔膜和负极。 负极合剂层含有负极活性物质，其包含能够与锂合金化的金属元素。 负极集电体包括由Cu-Fe-P合金箔制成的基板和设置在基板的两面上并由纯铜制成的表面层。 表面层的维氏硬度为120以下，小于基材的维氏硬度。 负极集电体的抗张强度为308MPa。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    2.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非水电解质二次电池

    公开(公告)号：US20110151338A1

    公开(公告)日：2011-06-23

    申请号：US13059770

    申请日：2009-08-04

    申请人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M10/056

    CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/622 ,  H01M6/164 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0034 ,  Y02E60/122

    摘要： The present invention is made to improve charge-discharge cycle performances under high temperature environment in a non-aqueous electrolyte secondary battery using a negative electrode containing a negative electrode active material of particulate silicon and/or silicon alloy and a binding agent.A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode 11, a negative electrode 12, a separator 13, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material containing particulate silicon and/or silicon alloy and a binding agent, and the non-aqueous electrolyte contains fluorinated cyclic carbonate and a prescribed diisocyanate compound, and when Li storage volume per unit area of the negative electrode of the non-aqueous electrolyte secondary battery under charging condition is determined as A and the theoretical maximum Li storage volume per unit area of the negative electrode is determined as B, a utilizing rate (%) of negative electrode which is expressed by (A/B)×100 is 45% or less.

    摘要翻译： 本发明的目的在于提高使用含有硅和/或硅合金的负极活性物质的负极和粘合剂的非水电解质二次电池在高温环境下的充放电循环性能。 根据本发明的非水电解质二次电池包括正极11，负极12，隔膜13和非水电解质，其中所述负极包括含有颗粒状硅的负极活性物质和/或 硅合金和粘合剂，非水电解质含有氟化环状碳酸酯和规定的二异氰酸酯化合物，并且当非水电解质二次电池的负极在充电条件下的每单位面积的Li储存容积确定为A 将负极单位面积的理论最大Li储存容量确定为B，由（A / B）×100表示​​的负极的利用率（％）为45％以下。

    Non-aqueous electrolyte secondary battery
    5.
    发明授权
    Non-aqueous electrolyte secondary battery 有权
    非水电解质二次电池

    公开(公告)号：US08802299B2

    公开(公告)日：2014-08-12

    申请号：US13059770

    申请日：2009-08-04

    申请人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M6/16 ,  H01M4/13 ,  H01M4/62 ,  H01M10/052 ,  H01M4/134 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/38

    CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/622 ,  H01M6/164 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0034 ,  Y02E60/122

    摘要： The present invention is made to improve charge-discharge cycle performances under high temperature environment in a non-aqueous electrolyte secondary battery using a negative electrode containing a negative electrode active material of particulate silicon and/or silicon alloy and a binding agent.A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode 11, a negative electrode 12, a separator 13, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material containing particulate silicon and/or silicon alloy and a binding agent, and the non-aqueous electrolyte contains fluorinated cyclic carbonate and a prescribed diisocyanate compound, and when Li storage volume per unit area of the negative electrode of the non-aqueous electrolyte secondary battery under charging condition is determined as A and the theoretical maximum Li storage volume per unit area of the negative electrode is determined as B, a utilizing rate (%) of negative electrode which is expressed by (A/B)×100 is 45% or less.

    摘要翻译： 本发明的目的在于提高使用含有硅和/或硅合金的负极活性物质的负极和粘合剂的非水电解质二次电池在高温环境下的充放电循环性能。 根据本发明的非水电解质二次电池包括正极11，负极12，隔膜13和非水电解质，其中所述负极包括含有颗粒状硅的负极活性物质和/或 硅合金和粘合剂，非水电解质含有氟化环状碳酸酯和规定的二异氰酸酯化合物，并且当非水电解质二次电池的负极在充电条件下的每单位面积的Li储存容积确定为A 将负极单位面积的理论最大Li储存容量确定为B，由（A / B）×100表示​​的负极的利用率（％）为45％以下。

    LITHIUM SECONDARY BATTERY
    6.
    发明申请
    LITHIUM SECONDARY BATTERY 审中-公开
    锂二次电池

    公开(公告)号：US20110217577A1

    公开(公告)日：2011-09-08

    申请号：US13040707

    申请日：2011-03-04

    申请人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M4/02 ,  H01M4/38 ,  H01M2/02

    CPC分类号： H01M10/052 ,  H01M10/0431

    摘要： A lithium secondary battery comprises an electrode assembly and a non-aqueous electrolyte. The electrode assembly is made by winding a negative electrode, a positive electrode, and a separator interposed between the negative and positive electrodes. The negative electrode contains a negative electrode active material that is alloyed with lithium. The non-aqueous electrolyte is impregnated in the electrode assembly. At least one of the negative and positive electrodes is divided into a plurality of electrode units which are arranged at spaces for each other along the winding direction.

    摘要翻译： 锂二次电池包括电极组件和非水电解质。 电极组件通过卷绕负极和正极之间的负极和隔膜来制造。 负极含有与锂合金化的负极活性物质。 非水电解质浸渍在电极组件中。 负电极和正极中的至少一个被分成沿着卷绕方向彼此间隔设置的多个电极单元。

    Nonaqueous electrolyte secondary battery
    7.
    发明申请
    Nonaqueous electrolyte secondary battery 审中-公开
    非水电解质二次电池

    公开(公告)号：US20080241703A1

    公开(公告)日：2008-10-02

    申请号：US12078052

    申请日：2008-03-26

    申请人： Hidekazu Yamamoto ,  Yasuo Takano ,  Takanobu Chiga ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Hidekazu Yamamoto ,  Yasuo Takano ,  Takanobu Chiga ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M10/26 ,  H01M4/58

    CPC分类号： H01M10/0525 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/621 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2300/0025

    摘要： A nonaqueous electrolyte secondary battery which includes a positive electrode, a negative electrode and a separator stacked and wound in a cylindrical configuration, and which achieves a high energy density and superior cycle performance characteristics.The nonaqueous electrolyte secondary battery includes a positive electrode containing a positive active material, a negative electrode containing a negative active material, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a solvent and a solute. Those positive electrode, negative electrode and separator are stacked and wound in a cylindrical configuration. Characteristically, the negative active material comprises a material that stores lithium via alloying with lithium, the solvent in the nonaqueous electrolyte contains a fluorinated cyclic carbonate, and the nonaqueous electrolyte has a viscosity of not higher than 2.5 mPas.

    摘要翻译： 一种非水电解质二次电池，其包括正极，负极和层叠并以圆筒形构成的隔板，并且具有高能量密度和优异的循环性能特性。 非水电解质二次电池包括含有正极活性物质的正极，含有负极活性物质的负极，插入正极和负极之间的隔膜，以及含有溶剂和溶质的非水电解质。 这些正极，负极和隔板被堆叠并缠绕成圆柱形构造。 特别地，负极活性物质包括通过与锂合金化锂的材料，非水电解质中的溶剂含有氟化环状碳酸酯，非水电解质的粘度不高于2.5mPa·s。

    LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    9.
    发明申请
    LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 审中-公开
    锂二次电池及其制造方法

    公开(公告)号：US20110117431A1

    公开(公告)日：2011-05-19

    申请号：US12868305

    申请日：2010-08-25

    申请人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M4/62 ,  H01M10/00

    CPC分类号： H01M10/052 ,  C08G73/10 ,  C08G73/1085 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M4/621 ,  H01M4/622 ,  Y02T10/7011 ,  Y10T29/49115

    摘要： A lithium secondary battery including an electrode assembly and a non-aqueous electrolyte impregnated in the electrode assembly, the electrode assembly containing a positive electrode, a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on the negative electrode current collector, the negative electrode mixture layer containing a binder and negative electrode active material particles, the negative electrode active material particles containing at least one of silicon and a silicon alloy, and a separator interposed between the negative electrode and the positive electrode. The binder contains a polyimide resin having a branch structure formed by imidizing a polyvalent amine having a valency of 3 or more and a tetracarboxylic dianhydride.

    摘要翻译： 一种锂二次电池，包括电极组件和浸渍在电极组件中的非水电解质，包含正极的电极组件，具有负极集电体的负极和形成在负极集电体上的负极混合层 含有粘合剂和负极活性物质粒子的负极混合物层，含有硅和硅合金中的至少一种的负极活性物质粒子以及介于负极和正极之间的隔膜。 粘合剂含有通过酰亚胺化三价以上的多价胺和四羧酸二酐形成的分支结构的聚酰亚胺树脂。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    10.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号：US20100081063A1

    公开(公告)日：2010-04-01

    申请号：US12568332

    申请日：2009-09-28

    申请人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    发明人： Hidekazu Yamamoto ,  Atsushi Fukui ,  Taizou Sunano ,  Maruo Kamino

    IPC分类号： H01M6/16

    CPC分类号： H01M10/0568 ,  H01M4/0435 ,  H01M4/134 ,  H01M4/621 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0569

    摘要： A non-aqueous electrolyte secondary battery has a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte dissolving a solute in a non-aqueous solvent wherein the negative electrode contains a negative electrode active material containing powdered silicon and/or silicon alloy and a binding agent, and the non-aqueous electrolyte contains a fluorinated cyclic carbonate represented by a general formula (1) below, and wherein when Li storage volume per unit area in the negative electrode during charging is determined as A and the theoretical maximum Li storage volume per unit area in the negative electrode is determined as B, a utilizing rate (%) of negative electrode as expressed by (A/B)×100 is 45% or less.

    摘要翻译： 非水电解质二次电池具有正极，负极，插入在正极和负极之间的隔膜以及将溶质溶解在非水溶剂中的非水电解质，其中负极含有负极 含有硅和/或硅合金粉末和粘合剂的电极活性材料，非水电解质含有下述通式（1）表示的氟化环状碳酸酯，其中当负极中的每单位面积的Li储存容积 在充电期间确定为A，将负极中每单位面积的理论最大Li储存容积确定为B，由（A / B）×100表示​​的负极的利用率（％）为45％以下。