LITHIUM MANGANATE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    3.
    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

    IPC分类号: H01M4/50

    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≦̸ x< ll; 0.15,0.05≦̸ y≦̸ 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。