HIGH RATE PRIMARY ZINC/AIR BATTERY.
Abstract
A system study of the high rate throwaway battery determined that thick anodes discharged to high efficiency were necessary for high energy density and minimum cost. Laboratory investigation indicated that .250 inch zinc anodes operating at 43 mA/sq cm could attain greater than 70% discharge efficiency. Furthermore, it was demonstrated that high discharge efficiencies could be attained with dendritic zinc and commercially available zinc powders as well as reduced zinc oxide. An intensive materials and processing cost reduction investigation was initiated. The largest cost saving demonstrated was the substitution of copper for the silver anode current collector. Elimination of vacuum drying by dry pressing the anodes was also shown feasible. Cathode cost reductions also showed promise. Preliminary designs gave an estimated energy density of 85 watt-hours/lb. System studies projected no heat rejection or dry-out problems during normal operation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1968
- Accession Number
- AD0674771
Entities
People
- Bernard Randall
- Emanuel G. Katsoulis
- Sheldon Cohen