Abstract: A nickel-hydrogen electrical storage cell contains a nickel positive electrode, a hydrogen negative electrode, a separator between the electrodes, an electrolyte including rubidium hydroxide and cesium hydroxide, and a pressure vessel to contain these elements. The cell is expected to operate for extended cycle life in deep discharge conditions based upon extrapolations of accelerated life testing results. The electrolyte may be essentially entirely rubidium hydroxide or cesium hydroxide, a mixture of the two, or a mixture with another component.

Abstract: Inorganic-organic composites suitable for use as separators in alkaline storage batteries requiring gas permeability, thermal stability, chemical stability and good structural strength and a process for making them are disclosed. The composites are more thermally stable than prior art separator materials, retain aqueous alkaline electrolytes well and are chemically resistant to 31% KOH solutions at 110.degree. C.

Abstract: Substrates prepared from chemically inert organic fibers that are non-wettable are rendered wettable by mechanically attached coatings of hydrophilic inorganic particles. The resulting inorganic-organic composites are suitable for use as separators in alkaline storage cells.

Abstract: Inorganic-organic composites suitable for use as separators in alkaline storage batteries requiring gas permeability, thermal stability, chemical stability and good structural strength and a process for making them are disclosed. The composites are more thermally stable prior art separator materials, retain aqueous alkaline electrolytes well and are chemically resistant to 31% KOH solutions at 110.degree. C.

Abstract: Substrates prepared from chemically inert organic fibers that are non-wettable are rendered wettable by mechanically attached coatings of hydrophilic inorganic particles. The resulting inorganic-organic composites are suitable for use as separators in alkaline storage cells.

Abstract: An inorganic-organic composite and method for making same wherein chopped zirconium oxide fibers are bonded together with a polymer. This composite is chemically stable and wettable in aqueous alkaline solutions, exhibits physical, chemical and thermal characteristics ideally suitable for use as separators in alkaline storage batteries, especially nickel-hydrogen and nickel-cadmium batteries.

Abstract: Chemically stable polymers in aqueous alkaline solutions are dissolved in a strongly polar solvent, thoroughly dispersed from this solvent into and throughout the interstices of porous inorganic fabrics and subsequently separated from said solvent by precipitation to provide a homogeneous reinforcement of the structural properties of said fabrics.

Abstract: Intrinsically nonwettable polypropylene battery separators are rendered wettable by treating them with polybenzimidazole.Polybenzimidazole (PBI) treated polypropylene (PP) separators exhibited excellent thermal and chemical stabilities, show excellent electrolyte retention, and are gas permeable.