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    Lithium secondary battery
    13.
    发明授权
    Lithium secondary battery 失效
    锂二次电池

    公开(公告)号：US07659034B2

    公开(公告)日：2010-02-09

    申请号：US10992081

    申请日：2004-11-19

    申请人： Hiroshi Minami ,  Hiromasa Yagi ,  Katsunobu Sayama ,  Maruo Kamino

    发明人： Hiroshi Minami ,  Hiromasa Yagi ,  Katsunobu Sayama ,  Maruo Kamino

    IPC分类号： H01M4/58 ,  H01M2/26 ,  H01M2/28 ,  H01M6/16

    CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2004/021 ,  H01M2004/028

    摘要： Charge-discharge cycle performance is improved in a lithium secondary battery including a negative electrode containing a negative electrode active material having silicon as its main component, provided on a surface of a current collector, a positive electrode containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium transition metal oxide containing Li and Co and having a layered structure, and further containing a group IVA element of the periodic table, such as Zr, Ti, or Tf, and a group IIA element of the periodic table, such as Mg.

    摘要翻译： 在集电体的表面设置有含有作为主要成分的负极活性物质的负极的锂二次电池，含有正极活性物质的正极和含有正极活性物质的正极的锂二次电池的充放电循环性能提高， 非水电解质。 正极活性物质是包含Li和Co并具有层状结构的锂过渡金属氧化物，并且还含有周期表中的IVA族元素，例如Zr，Ti或Tf，以及周期表的第IIA族元素 表，如Mg。

    Lithium secondary battery and method for manufacturing the same
    15.
    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：US09413010B2

    公开(公告)日：2016-08-09

    申请号：US13636811

    申请日：2011-03-24

    申请人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

    IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  C08L79/08 ,  C08G73/10

    CPC分类号： H01M4/622 ,  C08G73/1067 ,  C08G73/1082 ,  C08L79/08 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

    摘要： Provided is a lithium secondary battery in which negative-electrode active material particles containing silicon and/or a silicon alloy are used and which prevents the occurrence of breakage of a binder itself and peel-off of the binder at the interfaces with the negative-electrode active material and the negative-electrode current collector and has a high energy density and an excellent cycle characteristic. The lithium secondary battery includes: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte, wherein the binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine.

    摘要翻译： 提供一种锂二次电池，其中使用含有硅和/或硅合金的负极活性物质颗粒，并且防止粘合剂本身的破裂发生和粘合剂在与负极的界面处的剥离 活性物质和负极集电体，具有高能量密度和优异的循环特性。 锂二次电池包括：在作为负极的导电性金属箔的表面上形成有负极活性物质层的负极，负极活性物质层包含含有硅和/或硅合金的负极活性物质粒子和粘合剂 电极集电器; 正极; 和非水电解质，其中所述粘合剂含有通过将六价或更高价羧酸或其酸酐与二胺酰亚胺化而形成的交联结构的聚酰亚胺树脂。

    Lithium secondary battery
    17.
    发明申请
    Lithium secondary battery 审中-公开
    锂二次电池

    公开(公告)号：US20090087731A1

    公开(公告)日：2009-04-02

    申请号：US12232917

    申请日：2008-09-25

    申请人： Atsushi Fukui ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Maruo Kamino

    IPC分类号： H01M2/02

    CPC分类号： H01M10/0525 ,  H01M2/0217 ,  H01M4/131 ,  H01M4/134 ,  H01M4/624 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/021

    摘要： A lithium secondary battery includes: a positive electrode having a positive electrode active material layer disposed on a positive electrode current collector, the positive electrode active material layer containing a positive electrode binder and a positive electrode active material containing a layered lithium-transition metal composite oxide; a negative electrode having a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector, the negative electrode active material layer containing a negative electrode binder and a negative electrode active material containing particles of silicon and/or a silicon alloy; and a non-aqueous electrolyte. Al2O3 particles are firmly adhered to a surface of the lithium-transition metal composite oxide so that a BET specific surface area of the positive electrode active material after the adherence of the Al2O3 particles is from 1.5 times to 8 times greater than that before the adherence of the Al2O3 particles

    摘要翻译： 锂二次电池包括：具有设置在正极集电体上的正极活性物质层的正极，包含正极粘合剂的正极活性物质层和含有层状锂过渡金属复合氧化物的正极活性物质 ; 具有负极集电体和设置在负极集电体上的负极活性物质层的负极，含有负极活性物质的负极活性物质层和含有硅和/或硅的粒子的负极活性物质 合金; 和非水电解质。 Al 2 O 3颗粒牢固地粘附到锂 - 过渡金属复合氧化物的表面上，使得在Al 2 O 3颗粒粘附之后的正极活性材料的BET比表面积比粘附前的比例大1.5倍至8倍 Al2O3颗粒

    Lithium secondary battery and method of manufacturing the same
    18.
    发明申请
    Lithium secondary battery and method of manufacturing the same 有权
    锂二次电池及其制造方法

    公开(公告)号：US20090246632A1

    公开(公告)日：2009-10-01

    申请号：US12385016

    申请日：2009-03-27

    申请人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

    发明人： Atsushi Fukui ,  Taizo Sunano ,  Maruo Kamino

    IPC分类号： H01M4/62 ,  H01M4/82

    CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/621 ,  H01M4/622 ,  H01M4/661 ,  Y02T10/7011 ,  Y10T29/49115

    摘要： A lithium secondary battery contains a negative electrode binder containing a polyimide resin having a structure represented by the following chemical formula (1), and the polyimide resin having a molecular weight distribution such that the weight ratio of a polyimide resin having a molecular weight of less than 100,000 and a polyimide resin having a molecular weight from 100,000 to less than 200,000 is from 50:50 to 90:10: where n is an integer equal to or greater than 1, and R is a functional group represented by the following chemical formula (2) or (3):

    摘要翻译： 锂二次电池包含含有具有由以下化学式（1）表示的结构的聚酰亚胺树脂的负极粘合剂，聚酰亚胺树脂的分子量分布使得分子量较小的聚酰亚胺树脂的重量比 100,000以上，分子量为100,000〜小于20,000的聚酰亚胺树脂为50:50〜90:10，n为1以上的整数，R为下述化学式所示的官能团 （2）或（3）：

    Non-aqueous electrolyte secondary battery
    19.
    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。