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    • 8. 发明授权
    • Co-precipitation method for the preparation of Li1+xNi1-yCoyO2-based cathode materials
    • 用于制备Li1 + xNi1-yCoyO2基阴极材料的共沉淀法
    • US07575831B2
    • 2009-08-18
    • US11265093
    • 2005-11-03
    • She-Huang WuWen-Jen LiuChihWei Yang
    • She-Huang WuWen-Jen LiuChihWei Yang
    • H01M4/00
    • C01G51/42C01G53/42C01P2002/52C01P2002/54C01P2002/72C01P2006/40H01M4/525
    • A method for preparing Li1+xNi1−yCoyO2 cathode materials is disclosed, wherein −0.2≦x≦0.2 and 0.05≦y≦0.5. The method includes the following steps: (A) adding a first solution into a second solution to form a mixed solution, wherein the first solution is a saturated lithium hydroxide solution, the second solution contains nickel salt and cobalt salt, the mole ratio of the lithium ion in the first solution to nickel ion and cobalt ion in the second solution ranges from 1.5:1 to 5:1, and the molar ratio of nickel ion to cobalt ion in the second solution is 1−y:y; (B) stirring the mixed solution; (C) filtering the mixed solution and obtaining a co-precipitated precursor, wherein the molar ratio of lithium ion:nickel ion:cobalt ion is 1+x:1−y:y; and (D) heating the co-precipitated precursor at a temperature higher than 600° C.
    • 公开了一种制备Li1 + xNi1-yCoyO2阴极材料的方法,其中-0.2 <= x <= 0.2和0.05 <= y <0.5。 该方法包括以下步骤:(A)将第一溶液加入到第二溶液中以形成混合溶液,其中第一溶液为饱和氢氧化锂溶液,第二溶液含有镍盐和钴盐,其摩尔比为 第二溶液中的镍离子和钴离子的第一溶液中的锂离子为1.5:1至5:1,第二溶液中的镍离子与钴离子的摩尔比为1-y:y; (B)搅拌混合溶液; (C)过滤混合溶液并获得共沉淀前体,其中锂离子:镍离子:钴离子的摩尔比为1 + x:1-y:y; 和(D)在高于600℃的温度下加热共沉淀前体。