Zinc electrode

Abstract

Abstract PURPOSE:To increase cycle life by forming a zinc electrode of an alkaline storage battery with an active material prepared by adding a wetting material, an additive, and a binder to zinc oxide powder and metal zinc powder both having a specified particle size. CONSTITUTION:Zinc oxide powder having a particle size of 0.1-0.5mu, metal zinc powder having a particle size of 1-6mu, mercuric oxide, polyvinyl alcohol are mixed. Polytetrafluoroethylene dispersion and water are added to above mixture and they are kneaded. A paste sheet made of the kneaded material is kept in contact with an anode current collector to form a zinc electrode 1. The zinc electrode 1 is combined with a sintered nickel electrode 2 with an electrolyte absorbing layer 4 and a separator 3 interposed, and they are accommodated in a container 5 to form a nickel-zinc alkaline storage battery. Crystal growth of an active material and deformation of an electrode plate are prevented. Diffusion of an electrolyte is supplemented and cycle life is increased.

Inventors

• 👤 Sanehiro Furukawa
• 👤 古川　修弘
• 👤 Shuzo Murakami
• 👤 修三 村上

Bibliographic Details