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    LITHIUM MANGANATE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    2.
    发明申请
    LITHIUM MANGANATE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非水电解质二次电池用锰酸钡颗粒，其制造方法和非水电解质二次电池

    公开(公告)号：US20100288969A1

    公开(公告)日：2010-11-18

    申请号：US12742126

    申请日：2008-11-12

    申请人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

    发明人： Kazumichi Koga ,  Masayuki Uegami ,  Akihisa Kajiyama ,  Kazutoshi Ishizaki ,  Hideaki Sadamura

    IPC分类号： H01M4/50

    CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01G49/009 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01B1/08 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

    摘要： The present invention relates to lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D50) of not less than 2 μm and not more than 10 μm as measured by a particle size distribution meter, and forming particles having substantially a single phase, which have a composition represented by the following chemical formula: Li1+xMn2−x−yY1yO4+Y2 where Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is at least one element constituting a sintering aid having a melting point of not higher than 800° C., x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, and Y2 is present in an amount of 0.1 to 2.5 mol % based on Mn; the Y1 element being dispersed within the respective particles, and an X-ray diffraction intensity ratio of I(400)/I(111) of the particles being not less than 38% and an X-ray diffraction intensity ratio of I(440)/I(111) thereof being not less than 18%. The lithium manganate particles of the present invention have a high output and are excellent in high-temperature stability.

    摘要翻译： 本发明涉及一次粒径为1μm以上的平均粒径（D50）为2μm以上且10μm以下的由粒径分布计测定的锰酸锂颗粒，形成 具有基本上单相的颗粒，其具有由以下化学式表示的组成：Li1 + xMn2-x-yY1yO4 + Y2，其中Y1是选自Ni，Co，Mg，Fe，Al中的至少一种元素， Cr和Ti; Y2是构成熔点不高于800℃的烧结助剂的至少一种元素，x和y分别满足0.03＆nlE; x＆lt; ll; 0.15,0.05＆nlE; y＆nlE; 0.20，Y2以 相对于Mn为0.1〜2.5摩尔％ Y1元素分散在各自的粒子内，粒子的I（400）/ I（111）的X射线衍射强度比不小于38％，X射线衍射强度比I（440） / I（111）不小于18％。 本发明的锰酸锂颗粒具有高的输出，并且具有优异的高温稳定性。

    POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    8.
    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。