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    LI-NI COMPOSITE OXIDE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    3.
    发明申请
    LI-NI COMPOSITE OXIDE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    LI-NI复合氧化物颗粒及其制造方法和非水电解质二次电池

    公开(公告)号：US20140087262A1

    公开(公告)日：2014-03-27

    申请号：US14111590

    申请日：2012-04-12

    申请人： Taiki Imahashi ,  Hiroyasu Watanabe ,  Kazuhiko Kikuya ,  Hideaki Sadamura

    发明人： Taiki Imahashi ,  Hiroyasu Watanabe ,  Kazuhiko Kikuya ,  Hideaki Sadamura

    IPC分类号： H01M4/525 ,  C01D15/02

    CPC分类号： C01D15/02 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525

    摘要： The present invention provides lithium composite compound particles having good high-temperature storage property and excellent cycle characteristics as an active substance for a non-aqueous electrolyte secondary battery, and a secondary battery using the lithium composite compound particles. The Li—Ni composite oxide particles for a non-aqueous electrolyte secondary battery according to the present invention have a BET specific surface area of 0.05 to 0.8 m2/g; an atomic ratio (Ma/Ni) of a concentration of an amphoteric metal to a concentration of Ni on an outermost surface of the respective Li—Ni composite oxide particles is 2 to 6; and the concentration of the amphoteric metal on the outermost surface of the respective Li—Ni composite oxide particles is higher than a concentration of the amphoteric metal at a position spaced by 50 nm from the outermost surface toward a center of the respective Li—Ni composite oxide particles.

    摘要翻译： 本发明提供了作为非水电解质二次电池的活性物质和使用该锂复合化合物粒子的二次电池，具有良好的高温保存性和优异的循环特性的锂复合化合物粒子。 本发明的非水电解质二次电池用Li-Ni复合氧化物粒子的BET比表面积为0.05〜0.8m 2 / g， Li-Ni复合氧化物粒子的最外表面的两性金属的浓度相对于Ni的浓度的原子比（Ma / Ni）为2〜6， 并且各Li-Ni复合氧化物粒子的最表面上的两性金属的浓度高于距离最外表面朝向Li-Ni复合物的中心间隔50nm的位置处的两性金属的浓度 氧化物颗粒。

    POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    7.
    发明申请
    POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    正极电极活性物质颗粒及其制造方法和非水电解质二次电池

    公开(公告)号：US20120217435A1

    公开(公告)日：2012-08-30

    申请号：US13497628

    申请日：2010-09-28

    申请人： Manabu Yamamoto ,  Daisuke Nishikawa ,  Kazutoshi Ishizaki ,  Kazuhiko Kikuya ,  Teruaki Santoki ,  Osamu Sasaki ,  Hideaki Sadamura

    发明人： Manabu Yamamoto ,  Daisuke Nishikawa ,  Kazutoshi Ishizaki ,  Kazuhiko Kikuya ,  Teruaki Santoki ,  Osamu Sasaki ,  Hideaki Sadamura

    IPC分类号： H01M4/525 ,  H01M4/50 ,  H01M4/485

    CPC分类号： C01G51/50 ,  B82Y30/00 ,  C01G45/1228 ,  C01G51/42 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/76 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  Y02E60/122 ,  Y02P70/54

    摘要： The present invention relates to positive electrode active substance particles comprising a compound having at least a crystal system belonging to a space group of R−3m and a crystal system belonging to a space group of C2/m, and boron, wherein the compound is a composite oxide comprising at least Li, Mn, and Co and/or Ni; a relative intensity ratio [(a)/(b)] of a maximum diffraction peak intensity (a) observed at 2θ=20.8±1° in a powder X-ray diffraction pattern of the positive electrode active substance as measured using a Cu-Ka ray to a maximum diffraction peak intensity (b) observed at 2θ=18.6±1° in the powder X-ray diffraction pattern, is 0.02 to 0.5; a content of Mn in the positive electrode active substance particles is controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; and the positive electrode active substance particles comprise the boron in an amount of 0.001 to 3% by weight. The positive electrode active substance particles of the present invention are produced by calcining a mixture comprising precursor particles comprising Mn, and Ni and/or Co, a lithium compound and a boron compound at a temperature of 500 to 1500° C. The positive electrode active substance particles of the present invention can provide a secondary battery which can be improved in charge/discharge capacity and cycle characteristics.

    摘要翻译： 本发明涉及包含至少具有属于R-3m的空间群的晶体系的化合物和属于C2 / m的空间群的晶体系的化合物和硼的正极活性物质颗粒，其中所述化合物为 至少包含Li，Mn和Co和/或Ni的复合氧化物; 在使用Cu测定的正极活性物质的粉末X射线衍射图中，在2θ观察到的最大衍射峰强度（a）的相对强度比[（a）/（b）] = 20.8±1° -Ka射线在粉末X射线衍射图中在2θ观察到的最大衍射峰强度（b）= 18.6±1°，为0.02〜0.5; 控制正极活性物质粒子中的Mn含量使得其中Mn /（Ni + Co + Mn）的摩尔比不小于0.55; 正极活性物质粒子含有0.001〜3重量％的硼。 本发明的正极活性物质颗粒是通过在500〜1500℃的温度下煅烧包含Mn，Ni和/或Co的前体颗粒，锂化合物和硼化合物的混合物来制造的。正极活性物质 本发明的物质颗粒可以提供可以提高充电/放电容量和循环特性的二次电池。