LI-NI COMPOSITE OXIDE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    10.
    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

    IPC分类号: H01M4/525 C01D15/02

    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。