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    Cathode active material and non-aqueous electrolyte secondary battery
    31.
    发明授权
    Cathode active material and non-aqueous electrolyte secondary battery 有权
    阴极活性物质和非水电解质二次电池

    公开(公告)号：US07214449B2

    公开(公告)日：2007-05-08

    申请号：US11132859

    申请日：2005-05-18

    申请人： Takashi Sato ,  Yoshikatsu Yamamoto ,  Yosuke Hosoya

    发明人： Takashi Sato ,  Yoshikatsu Yamamoto ,  Yosuke Hosoya

    IPC分类号： H01M6/00

    CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/028

    摘要： A cathode active material and non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery includes a positive electrode and a negative electrode which are electrochemically doped and dedoped with lithium; and an electrolyte disposed between the positive electrode and the negative electrode. The positive electrode contains a cathode active material including a mixture of: a first cathode active material represented by a general formula: LitCoMsO2 where M represents a metal, 0≦s≦0.03, and 0.05≦t≦1.15; and a second cathode active material represented by a general formula: LixNi(1-y-z)CoyMnzAaO2 where A represents a metal, 0.05≦x≦1.15, 0.15≦y+z≦0.70, 0.05≦z≦0.40, and 0≦a≦0.10.

    摘要翻译： 正极活性物质和非水电解质二次电池。 非水电解质二次电池包括电化学掺杂并脱锂的正极和负极; 以及设置在正极和负极之间的电解质。 正极含有阴极活性物质，该阴极活性物质包含以下通式的混合物：由以下通式表示的第一阴极活性物质：Li >其中M表示金属，0 <= s <= 0.03，而0.05 <= t <= 1.15; 和由以下通式表示的第二阴极活性材料：Li x Ni（1-yz）Mn x Mn z 其中A表示金属，0.05 <= x <= 1.15,0.15 <= y + z <= 0.70,0.05 <= z < 0.40，0 <= a <= 0.10。

    Positive electrode active material and non-aqueous electrolyte secondary cell
    32.
    发明申请
    Positive electrode active material and non-aqueous electrolyte secondary cell 有权
    正极活性物质和非水电解质二次电池

    公开(公告)号：US20050181279A1

    公开(公告)日：2005-08-18

    申请号：US11052967

    申请日：2005-02-07

    申请人： Yosuke Hosoya

    发明人： Yosuke Hosoya

    IPC分类号： H01M2/16 ,  H01M4/02 ,  H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M10/05 ,  H01M10/38 ,  H01M4/48

    CPC分类号： H01M4/525 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0587

    摘要： A non-aqueous electrolyte secondary cell having superior high temperature-operation properties and excellent large current-discharge properties is provided. The non-aqueous electrolyte secondary cell has a positive electrode composed of a positive electrode collector and positive electrode active material layers formed thereon. A positive electrode active material contained in the above layer is formed of a first composite oxide and a second composite oxide mixed therewith. The first composite oxide is formed of grains of a first lithium transition metal composite oxide containing at least nickel as a transition metal and a cover layer formed on at least part of the surface of each of the grains for suppressing decomposition of an electrolyte caused by the first lithium transition metal composite oxide. The second composite oxide is composed of grains of a second lithium transition metal composite oxide.

    摘要翻译： 提供了具有优异的高温操作性能和优异的大电流放电特性的非水电解质二次电池。 非水电解质二次电池具有由正极集电体构成的正极和在其上形成的正极活性物质层。 包含在上述层中的正极活性物质由第一复合氧化物和与其混合的第二复合氧化物形成。 第一复合氧化物由至少含有镍作为过渡金属的第一锂过渡金属复合氧化物的晶粒和形成在每个晶粒的表面的至少一部分上的覆盖层形成，用于抑制由 第一锂过渡金属复合氧化物。 第二复合氧化物由第二锂过渡金属复合氧化物的晶粒组成。

    Positive electrode material and secondary battery using the same
    33.
    发明授权
    Positive electrode material and secondary battery using the same 失效
    正极材料和使用其的二次电池

    公开(公告)号：US06534217B2

    公开(公告)日：2003-03-18

    申请号：US09760677

    申请日：2001-01-16

    申请人： Keizou Koga ,  Yosuke Hosoya ,  Junji Kuyama ,  Masayuki Nagamine

    发明人： Keizou Koga ,  Yosuke Hosoya ,  Junji Kuyama ,  Masayuki Nagamine

    IPC分类号： H01M1024

    CPC分类号： H01M4/485 ,  H01M4/366 ,  H01M4/505 ,  H01M4/5815 ,  H01M6/10 ,  H01M10/0525 ,  H01M2004/028

    摘要： Disclosed is a positive electrode material having improved charging/discharging cycle characteristic, shelf stability, and discharge load characteristic, and a secondary battery using the material. A rolled electrode body obtained by rolling strip-shaped positive and negative electrodes with a separator inbetween is provided on the inside of a battery can. The separator is impregnated with an electrolytic solution. The positive electrode contains a positive electrode material in which a coating portion is provided on the surface of a center portion made of a lithium composite oxide such as LiMn2O4. The coating portion is made of a conductive oxide such as ITO (indium tin oxide) or SnO2. The quantity of the coating portion is 0.001 mol to 0.1 mol per 1 mol of the center portion. By the technique, while assuring conductivity, elution of the positive electrode material into the electrolytic solution can be suppressed and a reaction product can be prevented from being deposited on the surface of the positive electrode.

    摘要翻译： 公开了具有改善的充放电循环特性，储存稳定性和放电负荷特性的正极材料和使用该材料的二次电池。 在电池壳体的内部设置有通过在其间分隔带状的带状的正极和负极来轧制的卷绕电极体。 隔膜用电解液浸渍。 正极含有正极材料，其中在由锂复合氧化物如LiMn 2 O 4制成的中心部分的表面上设置涂覆部分。 涂覆部分由诸如ITO（氧化铟锡）或SnO 2的导电氧化物制成。 相对于1摩尔中心部分，涂布部分的量为0.001摩尔至0.1摩尔。 通过该技术，在确保电导率的同时，可以抑制正电极材料向电解液中的溶出，并且可以防止反应产物沉积在正极的表面上。

    Positive electrode active material, method for manufacturing positive electrode active material and nonaqueous electrolyte battery
    39.
    发明授权
    Positive electrode active material, method for manufacturing positive electrode active material and nonaqueous electrolyte battery 失效
    正极活性物质，正极活性物质和非水电解质电池的制造方法

    公开(公告)号：US08771876B2

    公开(公告)日：2014-07-08

    申请号：US12761172

    申请日：2010-04-15

    申请人： Haruo Watanabe ,  Tomoyo Ooyama ,  Yosuke Hosoya ,  Shigeru Fujita

    发明人： Haruo Watanabe ,  Tomoyo Ooyama ,  Yosuke Hosoya ,  Shigeru Fujita

    IPC分类号： H01M4/58 ,  H01M4/00

    CPC分类号： H01M4/131 ,  H01M4/02 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525

    摘要： A positive electrode active material includes a lithium complex oxide particle, and a coating layer formed on at least a part of the surface of the lithium complex oxide particle. The lithium complex oxide particle is a lithium complex oxide particle composed mainly of nickel. The coating layer contains an oxo acid and/or an oxo acid compound, an acidity of the surface of the lithium complex oxide particle composed mainly of nickel is increased by the coating layer. The acidity is determined based on a pH of a supernatant of water in a state where after 1.0 part by weight of the lithium complex oxide particle composed mainly of nickel and having a coating layer formed thereon is dispersed in 50 parts by weight of water. The lithium complex oxide particle sediments, and the pH is less than 8.0.

    摘要翻译： 正极活性物质包括锂复合氧化物颗粒和形成在锂复合氧化物颗粒的表面的至少一部分上的涂层。 锂复合氧化物颗粒是主要由镍组成的锂复合氧化物颗粒。 涂层含有含氧酸和/或含氧酸化合物，主要由镍组成的锂复合氧化物颗粒的表面的酸度由涂层增加。 在1.0重量份以镍为主成分并且其上形成有涂层的锂复合氧化物颗粒分散在50重量份水中的状态下，基于水的上清液的pH确定酸度。 锂复合氧化物颗粒沉积，pH值小于8.0。