Lithium transition metal based compound powder and method for manufacturing the same
    5.
    发明公开
    Lithium transition metal based compound powder and method for manufacturing the same 审中-公开
    锂过渡金属基化合物粉末及其制造方法

    公开(公告)号:EP2341570A1

    公开(公告)日:2011-07-06

    申请号:EP11159225.9

    申请日:2007-12-21

    IPC分类号: H01M4/50 H01M4/52

    摘要: The present invention relates to a lithium transition metal based compound powder for a lithium secondary battery positive electrode material, characterized by comprising a lithium transition metal based compound, which has a function of enabling insertion and elimination of lithium ions, as a primary component and being produced by conducting firing after at least one type of compound (hereafter referred to as "Additive 1") containing at least one type of element (hereafter referred to as "Additive element 1") selected from B and Bi and at least one type of compound (hereafter referred to as "Additive 2") containing at least one type of element (hereafter referred to as "Additive element 2") selected from Mo and W are added in combination to a raw material of the primary component at a ratio of a total of Additive 1 and Additive 2 to a total amount of moles of transition metal elements in the raw material of the primary component of 0.01 percent by mole or more, and less than 2 percent by mole, wherein an atomic ratio of Additive elements 1 in total to a total of metal elements other than Li, Additive elements 1, and Additive elements 2 of a surface portion of a primary grain is 20 times or more larger than the atomic ratio on the whole grain basis.

    摘要翻译: 锂二次电池正极材料用锂过渡金属类化合物粉末技术领域本发明涉及锂二次电池正极材料用锂过渡金属类化合物粉末,其特征在于,以锂过渡金属类化合物为主要成分,具有能够嵌入和脱嵌锂离子的功能, 通过在含有选自B和Bi中的至少一种元素(以下称为“添加元素1”)中的至少一种化合物(以下称为“添加剂1”)和至少一种 包含选自Mo和W中的至少一种元素的化合物(以下称为“添加剂2”)以下述比例组合添加到主要组分的原料中: 相对于主成分的原料中的过渡金属元素的总摩尔量为0.01摩尔%以上且小于2重量%的添加剂1和添加剂2的总量 t,其中添加元素1的总量相对于除Li以外的金属元素,添加元素1和添加元素2的总量的原子比大于原子比的20倍或更多倍 在全谷物的基础上。