公开(公告)号：US20060029863A1

公开(公告)日：2006-02-09

申请号：US10526020

申请日：2003-08-29

申请人： Shinichi Miyamoto ,  Kunihiko Miyamoto

发明人： Shinichi Miyamoto ,  Kunihiko Miyamoto

IPC分类号： H01M4/52 ,  H01M4/62

CPC分类号： H01M4/366 ,  H01M2/0235 ,  H01M4/42 ,  H01M4/52 ,  H01M6/06 ,  H01M2004/021 ,  H01M2004/028

摘要： According to the invention, a high capacity alkali primary battery excellent in high rate characteristics is obtained using a positive electrode active substance, wherein the particles of the nickel oxyhydroxide base compound as the positive electrode active substance has a surface coated with a higher oxide of cobalt and comprises zinc and cobalt separately or an eutectic crystal with zinc and cobalt, and a half-width of an X-ray diffraction peak at a diffraction angle at around 18° in an X-ray diffraction pattern of 0.4 to 0.48 obtained by using a CuKα line as an X-ray source. A further excellent battery is obtained by using zinc containing a powder with a particle diameter of 75 μm or less in the range of 10% by mass or more and 20% by mass or less.

摘要翻译： 根据本发明，使用正极活性物质获得高速率特性优异的高容量碱性一次电池，其中作为正极活性物质的氢氧化正镍基化合物的颗粒具有涂覆有较高氧化钴的表面 并且在X射线衍射图中为0.4〜0.48的衍射角为18°左右的衍射角的X射线衍射峰的半峰宽为0.4〜0.48，通过使用 CuKalpha线作为X射线源。 通过使用含有粒径为75μm以下的粉末的锌在10质量％以上且20质量％以下的范围内，可以获得更好的电池。