公开(公告)号：US20080043402A1

公开(公告)日：2008-02-21

申请号：US11802402

申请日：2007-05-22

申请人： Soon-ho KIM ,  Jae-young Choi ,  Do-kyung Kim ,  Je-hyeong Park

发明人： Soon-ho KIM ,  Jae-young Choi ,  Do-kyung Kim ,  Je-hyeong Park

IPC分类号： H01G4/008 ,  C22C19/03 ,  H01B1/02

CPC分类号： H01G4/008 ,  B22F9/24 ,  B22F2998/00 ,  H01G4/012 ,  H01G4/30 ,  B22F1/0018

摘要： Provided are a method for preparing metallic nickel powders capable of decreasing the content of an alkaline metal in the metallic nickel powders, metallic nickel powders with the low content of an alkaline metal, a conductive paste including metallic nickel powders with the low content of an alkaline metal, and a multi-layer ceramic capacitor (MLCC) including a nickel inner electrode with the low content of an alkaline metal. The method for preparing the metallic nickel powders includes heating a mixture including an organic base, a nickel precursor compound, and a polyol. Wherein, the nickel precursor compound is converted to the metallic nickel powders through reduction by the organic base and the polyol. In the method, the organic base is used instead of the hydroxide of an alkaline metal such as NaOH and KOH. Therefore, the content of an alkaline metal such as sodium and potassium that can be incorporated as an impurity into the metallic nickel powders can be significantly reduced.

摘要翻译： 提供了一种能够降低金属镍粉末中的碱金属含量的金属镍粉末的方法，碱金属含量低的金属镍粉末，含有碱性低的金属镍粉末的导电膏 金属和包含碱金属含量低的镍内电极的多层陶瓷电容器（MLCC）。 制备金属镍粉末的方法包括加热包括有机碱，镍前体化合物和多元醇的混合物。 其中，镍前体化合物通过有机碱和多元醇的还原转化为金属镍粉末。 在该方法中，使用有机碱代替NaOH和KOH等碱金属的氢氧化物。 因此，可以显着降低作为杂质掺入到金属镍粉末中的碱金属如钠和钾的含量。