摘要:
A high-capacity enclosed nickel-zinc primary battery excellent in characteristics such as capacity maintenance factor, energy density, and high-efficient discharge characteristics, an anode using it, and a production method for them. An enclosed nickel-zinc primary battery which uses as an anode an anode active material of nickel hydroxide compound, such as nickel oxyhydroxide, particles and uses zinc alloy gel as a cathode material, wherein a ratio of anode theoretical capacity to cathode theoretical capacity is 1.0-1.6, and a ratio of alkali electrolyte to anode theoretical capacity is 1.0-1.6 ml/Ah.
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.