| 摘要 |
PURPOSE:To prevent a voltage drop due to an increase of impedance of manganese dioxide, by using a material, in which nonfiring electrolytic manganese dioxide and firing electrolytic manganese dioxide are added to mercury oxide, as a positive electrode active material. CONSTITUTION:Nonfiring electrolytic manganese dioxide, firing electrolytic manganese dioxide and a conductive agent or the like are mixed in mercury oxide to form a positive electrode active material in a mercury cell. This positive electrode active material, zinc negative electrode and a caustic alkali electrolyte are used to build the mercury cell. In this mercury cell, a voltage drop due to an increase of impedance of firing manganese dioxide at an electric discharge can be prevented. |
