Sealed Nickel-Zinc Rechargeable Batteries.

The purpose of the investigation is to develop a high energy density nickel-zinc battery that can operate in a sealed condition with no maintenance throughout its life. Inorganic separator materials fabricated from layer hydroxide and layer silicate materials were studied. They showed excellent resistance to zinc penetration compared to cellulosic separators on accelerated overcharge tests. Capacity maintenance data obtained indicate superior life for cells with layer hydroxide separators. Other studies concerned cells constructed with silver amalgam recombination electrodes and active carbon recombination electrodes.