申请人:Sakai Chemical Industry Co., Ltd.
公开号:US06306787B1
公开(公告)日:2001-10-23
The invention provides nickel hydroxide secondary particles comprising agglomerates of primary particles of nickel hydroxide in the shape of a triangular prism or a triangular plate having a surface or a outer face in the form of a substantially equilateral triangle each side of which substantially equilateral triangle has a length of 1 to 10 &mgr;m. The invention further provides lithium nickel composite oxide secondary particles comprised of agglomerates of primary particles having a large particle diameter by mixing the nickel hydroxide secondary particles with a lithium compound and sintering the resulting mixture at a temperature of 600° C. to 1000° C. in an oxidative atmosphere.
本发明提供了镍氢化物二次粒子,其包括镍氢化物的初级粒子的团聚体,呈三棱柱或三角形板状,具有表面或外表面呈基本等边三角形的形状,其中基本等边三角形的每条边的长度为1到10微米。本发明还提供了锂镍复合氧化物二次粒子,由混合镍氢化物二次粒子和锂化合物,并在氧化性气氛下将所得混合物在600°C至1000°C的温度下烧结而成,其包括具有大粒径的初级粒子的团聚体。