A powder of electrolytic manganese dioxide and a process for producing the same are disclosed. The powder has a maximum particle diameter of 100 µm or smaller, a content of 1 µm and smaller particles of lower than 15% by number, and a median diameter of ...

Manganese dioxide for lithium primary batteries which is obtained by soda neutralization and heat treatment of electrolytic manganese dioxide and has a sodium content of 0.05 to 0.2% by weight and a phosphorus content of 0.05 to 2.0% by weight. A process f...