HIGH NICKEL CATHODE MATERIAL HAVING LOW SOLUBLE BASE CONTENT
    3.
    发明申请
    HIGH NICKEL CATHODE MATERIAL HAVING LOW SOLUBLE BASE CONTENT 有权
    具有低可溶性碱性内容物的高镍铬阴极材料

    公开(公告)号:US20140054495A1

    公开(公告)日:2014-02-27

    申请号:US13983596

    申请日:2012-01-31

    IPC分类号: H01M4/505 H01M4/525 C01D15/02

    摘要: The invention relates to cathode materials for Li-ion batteries in the quaternary phase diagram Li[Li1/3Mn2/3]O2—LiMn1/2Ni1/2O2—LiNiO2—LiCoO2, and having a high nickel content. Also a method to manufacture these materials is disclosed. The cathode material has a general formula Lia((Niz(Ni1/2Mn1/2)yCox)1-kAk)2-aO2, wherein x+y+z=1, 0.1≦x≦0.4, 0.36≦z≦0.50, A is a dopant, 0≦k≦0.1, and 0.95≦a≦1.05, and having a soluble base content (SBC) within 10% of the equilibrium soluble base content.

    摘要翻译: 本发明涉及Li [Li1 / 3Mn2 / 3] O2-LiMn1 / 2Ni1 / 2O2-LiNiO2-LiCoO2四元相图中锂离子电池的阴极材料,镍含量高。 还公开了制造这些材料的方法。 阴极材料具有通式Li((Niz(Ni1 / 2Mn1 / 2)yCox)1-kAk)2-aO2,其中x + y + z = 1,0.1 @ x @ 0.4,0.36 @ z @ 0.50,A 是掺杂剂,0 @ k @ 0.1和0.95 @ a @ 1.05,并且具有可溶性碱含量(SBC)在平衡可溶性碱含量的10%以内。

    Alumina dry-coated cathode material precursors
    4.
    发明授权
    Alumina dry-coated cathode material precursors 有权
    氧化铝干涂阴极材料前体

    公开(公告)号:US09543581B2

    公开(公告)日:2017-01-10

    申请号:US13817324

    申请日:2011-08-04

    摘要: A particulate precursor compound for manufacturing an aluminum doped lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-hydroxide or (M)-oxyhydroxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing an aluminum dry-coating process where the particulate precursor core compound is mixed with alumina powder in one or more procedures, higher doping levels of aluminum compared to the known prior art may be achieved. The crystal structure of the alumina is maintained during the coating procedures and the core of each mixed transition metal precursor particle is surrounded by a coating layer containing crystalline alumina nano particles. The aluminum concentration in the particulate precursor decreases as the size of the core increases.

    摘要翻译: 用于制造可用作锂离子电池中的活性正极材料的铝掺杂锂过渡金属(M) - 氧化物粉末的颗粒前体化合物包括过渡金属(M) - 羟基氧化物或(M) - 羟基氧化物核心和非 - 无定形氧化铝覆层覆盖核心。 通过提供铝干法涂覆方法,其中颗粒前体核心化合物与氧化铝粉末以一种或多种方法混合,可以实现与已知现有技术相比较较高掺杂水平的铝。 在涂布过程中保持氧化铝的晶体结构,并且每个混合的过渡金属前体颗粒的芯被包含结晶氧化铝纳米颗粒的涂层包围。 颗粒前体中的铝浓度随着核心尺寸的增加而减小。

    Alumina Dry-Coated Cathode Material Precursors
    5.
    发明申请
    Alumina Dry-Coated Cathode Material Precursors 有权
    氧化铝干涂层阴极材料前体

    公开(公告)号:US20130209885A1

    公开(公告)日:2013-08-15

    申请号:US13817324

    申请日:2011-08-04

    IPC分类号: H01M4/525

    摘要: A particulate precursor compound for manufacturing an aluminum doped lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-hydroxide or (M)-oxy-hydroxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing an aluminum thy-coating process where the particulate precursor core compound is mixed with alumina powder in one or more procedures, higher doping levels of aluminum compared to the known prior art may be achieved. The crystal structure of the alumina is maintained during the coating procedures and the core of each mixed transition metal precursor particle is surrounded by a coating layer containing crystalline alumina nano particles. The aluminum concentration in the particulate precursor decreases as the size of the core increases.

    摘要翻译: 用于制造可用作锂离子电池中的活性正极材料的掺铝锂过渡金属(M) - 氧化物粉末的颗粒前体化合物包括过渡金属(M) - 羟基氧化物或(M) - 氢氧化氢核心和 覆盖核心的非无定形氧化铝涂层。 通过提供铝涂覆方法,其中颗粒前体核心化合物与氧化铝粉末以一种或多种方法混合,可以实现与已知现有技术相比较较高掺杂水平的铝。 在涂布过程中保持氧化铝的晶体结构,并且每个混合的过渡金属前体颗粒的芯被包含结晶氧化铝纳米颗粒的涂层包围。 颗粒前体中的铝浓度随着核心尺寸的增加而减小。