Silver — Cadmium Batteries

Abstract

The Yardney Silcad silver- cadmium battery combines in one system the high energy and excellent space and weight characteristics of the silver-zinc battery with the long life, low-rate characteristics with some resistance to overcharge characteristic of the nickel-cadmium battery. The silver-cadmium battery also provides high efficiency, an extended shelf life in charged or uncharged conditions, level voltage and mechanical ruggedness. Energy densities are two to three times greater than a comparable nickel-cadmium battery (figures 5.1). The principal characteristics of Yardney silver-zinc and silver-cadmium cells and batteries are compared and their important differences shown in table 5.1.