High-Capacity Nickel-Hydrogen Cells

Nickel-hydrogen electrochemical cells with capacities of 350 ampere-hours have been developed. These cells are intended primarily for use in government and commercial satellites; they have been fully qualified to satisfy performance requirements for operation in geosynchronous satellites for as long as 15 years. They may also prove useful in terrestrial applications in which there are requirements for long-life, lightweight, high-capacity cells that retain capacity over a wide temperature range and retain integrity when subjected to severe acceleration.