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    Secondary lithium battery
    3.
    发明授权
    Secondary lithium battery 失效
    二次锂电池

    公开(公告)号：US08530087B2

    公开(公告)日：2013-09-10

    申请号：US13015061

    申请日：2011-01-27

    申请人： Kan Kitagawa ,  Toyotaka Yuasa ,  Tatsuya Tooyama

    发明人： Kan Kitagawa ,  Toyotaka Yuasa ,  Tatsuya Tooyama

    IPC分类号： H01M4/62 ,  H01M4/50 ,  H01M4/52

    CPC分类号： H01M4/26 ,  H01M4/62 ,  Y10T29/49108 ,  Y10T29/49115

    摘要： It is an object to provide a cathode for a secondary lithium battery in which adhesiveness and flexibility thereof are simultaneously achieved and the thickness thereof is made large, and the secondary lithium ion battery that has a large capacity and is excellent in safety and cycle life using the cathode.The cathode includes a current collector and a cathode mixture layer formed on the surface of the current collector. The cathode mixture layer is formed by stacking two layers one on another, each of which contains a cathode active material, a conductive material and a binder, and the cathode active material contains a lithium-containing composite oxide that forms a polyanion. Of the two layers, the binder that composes a first layer that is in contact with the current collector contains a polymer formed by polymerizing at least one of monomers consisting of a monomer derived from 1-olefin and a monomer derived from a vinyl compound; and the binder that forms a second layer formed on the first layer contains a fluorine resin.

    摘要翻译： 本发明的目的是提供一种用于二次锂电池的阴极，其中同时实现其粘附性和柔性并且其厚度变大，并且具有大容量并且安全性和循环寿命优异的二次锂离子电池使用 阴极。 阴极包括在集电体的表面上形成的集电体和阴极混合层。 阴极混合层通过层叠两层而形成，其中每层包含阴极活性材料，导电材料和粘合剂，并且阴极活性材料含有形成聚阴离子的含锂复合氧化物。 在两层中，构成与集电体接触的第一层的粘合剂含有通过使由至少一种由1-烯烃衍生的单体和由乙烯基化合物衍生的单体聚合而形成的聚合物， 形成在第一层上的第二层的粘合剂含有氟树脂。

    POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY
    4.
    发明申请
    POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY 审中-公开
    锂二次电池和锂二次电池的正极

    公开(公告)号：US20100297503A1

    公开(公告)日：2010-11-25

    申请号：US12783746

    申请日：2010-05-20

    申请人： Kan Kitagawa ,  Atsushi Ueda ,  Toyotaka Yuasa ,  Tatsuya Toyama

    发明人： Kan Kitagawa ,  Atsushi Ueda ,  Toyotaka Yuasa ,  Tatsuya Toyama

    IPC分类号： H01M4/58

    CPC分类号： H01M4/5825 ,  H01M4/136 ,  H01M4/621 ,  H01M10/0525

    摘要： A positive electrode for lithium secondary batteries and a lithium secondary battery are provided in which, by using an olivine Mn based positive-electrode active material and an optimal binder for the olivine Mn based positive-electrode active material, peel-off of the electrode and gelatinization of the slurry can be prevented, with large energy density, excellent in rate characteristic and cycle life. The positive electrode includes a positive-electrode composite including at least a positive-electrode active material and a binder; and a positive-electrode current collector. The positive-electrode active material includes a lithium composite oxide having an olivine-type structure, which is represented by the formula LiMnxM1−xPO4 (where 0.3≦x≦1 and M is one or more elements selected from the group consisting of Li, Fe, Ni, Co, Ti, Cu, Zn, Mg, and Zr) . The binder includes an acrylonitrile-based copolymer.

    摘要翻译： 提供了一种锂二次电池用正极和锂二次电池，其中，通过使用橄榄石Mn系正极活性物质和橄榄石Mn系正极活性物质的最佳粘合剂，电极剥离和 可以防止浆料糊化，能量密度大，速率特性和循环寿命优异。 正极包括至少包含正极活性物质和粘合剂的正极复合体; 和正极集电体。 正极活性物质包括具有橄榄石型结构的锂复合氧化物，其由式LiMn x M 1-x PO 4表示（其中，0.3＆lt; 1lE; x＆nlE; 1和M是选自Li， Fe，Ni，Co，Ti，Cu，Zn，Mg和Zr）。 粘合剂包括丙烯腈基共聚物。

    SECONDARY LITHIUM BATTERY
    6.
    发明申请
    SECONDARY LITHIUM BATTERY 失效
    二次锂电池

    公开(公告)号：US20110189541A1

    公开(公告)日：2011-08-04

    申请号：US13015061

    申请日：2011-01-27

    申请人： Kan KITAGAWA ,  Toyotaka Yuasa ,  Tatsuya Tooyama

    发明人： Kan KITAGAWA ,  Toyotaka Yuasa ,  Tatsuya Tooyama

    IPC分类号： H01M4/62 ,  H01M4/26

    CPC分类号： H01M4/26 ,  H01M4/62 ,  Y10T29/49108 ,  Y10T29/49115

    摘要： It is an object to provide a cathode for a secondary lithium battery in which adhesiveness and flexibility thereof are simultaneously achieved and the thickness thereof is made large, and the secondary lithium ion battery that has a large capacity and is excellent in safety and cycle life using the cathode.The cathode includes a current collector and a cathode mixture layer formed on the surface of the current collector. The cathode mixture layer is formed by stacking two layers one on another, each of which contains a cathode active material, a conductive material and a binder, and the cathode active material contains a lithium-containing composite oxide that forms a polyanion. Of the two layers, the binder that composes a first layer that is in contact with the current collector contains a polymer formed by polymerizing at least one of monomers consisting of a monomer derived from 1-olefin and a monomer derived from a vinyl compound; and the binder that forms a second layer formed on the first layer contains a fluorine resin.

    摘要翻译： 本发明的目的是提供一种用于二次锂电池的阴极，其中同时实现其粘附性和柔性并且其厚度变大，并且具有大容量并且安全性和循环寿命优异的二次锂离子电池使用 阴极。 阴极包括在集电体的表面上形成的集电体和阴极混合层。 阴极混合层通过层叠两层而形成，其中每层包含阴极活性材料，导电材料和粘合剂，并且阴极活性材料含有形成聚阴离子的含锂复合氧化物。 在两层中，构成与集电体接触的第一层的粘合剂含有通过使由至少一种由1-烯烃衍生的单体和衍生自乙烯基化合物的单体组成的单体聚合而形成的聚合物; 形成在第一层上的第二层的粘合剂含有氟树脂。

    Positive electrode material for lithium secondary battery and lithium secondary battery
    7.
    发明授权
    Positive electrode material for lithium secondary battery and lithium secondary battery 有权
    锂二次电池和锂二次电池用正极材料

    公开(公告)号：US07824807B2

    公开(公告)日：2010-11-02

    申请号：US11296302

    申请日：2005-12-08

    申请人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

    发明人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

    IPC分类号： H01M4/62 ,  H01M4/58

    CPC分类号： H01M4/505 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02T10/7011

    摘要： A positive electrode material for lithium secondary battery having high electron conductivity even at very low temperatures and a lithium secondary battery with the use of the positive electrode material are provided. The positive electrode material for lithium secondary battery has secondary particles formed of primary particles made of lithium complex oxides composited with ultrathin carbon fibers having lengths equal to or smaller than the diameters of the secondary particles of the positive electrode active material. The ultrathin carbon fibers have opposite ends from which an electrolytic solution moves in and out.

    摘要翻译： 提供了即使在非常低的温度下也具有高电子传导性的锂二次电池用正极材料和使用正极材料的锂二次电池。 锂二次电池用正极材料具有由与由正极活性物质的二次粒子的直径相等或更小的长度的超薄碳纤维复合的锂复合氧化物构成的一次粒子形成的二次粒子。 超薄碳纤维具有相对的端部，电解液从该端部移入和移出。

    CATHODE MATERIALS FOR LITHIUM SECONDARY BATTERIES
    8.
    发明申请
    CATHODE MATERIALS FOR LITHIUM SECONDARY BATTERIES 审中-公开
    锂二次电池的阴极材料

    公开(公告)号：US20070160906A1

    公开(公告)日：2007-07-12

    申请号：US11620197

    申请日：2007-01-05

    申请人： Tatsuya TOOYAMA ,  Toyotaka Yuasa ,  Sai Ogawa

    发明人： Tatsuya TOOYAMA ,  Toyotaka Yuasa ,  Sai Ogawa

    IPC分类号： H01M4/50 ,  H01M4/52

    CPC分类号： H01M10/0525 ,  H01M4/362 ,  H01M4/505 ,  H01M4/525 ,  Y02T10/7011

    摘要： The present invention provides a lithium secondary battery small in the volume variation caused by charge-discharge and excellent in cycle performance. The lithium secondary battery includes a cathode capable of storing and releasing lithium and an anode capable of storing and releasing lithium, the cathode including a lithium-nickel-manganese-cobalt compound oxide having a layered crystal structure and a lithium-manganese compound oxide having a layered crystal structure distributed in the lithium-nickel-manganese-cobalt compound oxide.

    摘要翻译： 本发明提供一种由充放电引起的体积变化小，循环性能优异的锂二次电池。 锂二次电池包括能够储存和释放锂的阴极和能够储存和释放锂的阳极，所述阴极包括具有层状晶体结构的锂镍锰钴复合氧化物和具有层状晶体结构的锂锰复合氧化物，所述锂锰复合氧化物具有 分布在锂镍锰钴复合氧化物中的层状晶体结构。