PRELIMINARY STUDY OF THE MAGNESIUM-SILVER CHLORIDE SEAWATER BATTERY.
Abstract
A literature study is presented of the magnesiumsilver chloride seawater battery. Typical batteries used for propulsion of torpedoes are described. A theoretical analysis is presented of the factors which would affect the operating voltage of a Mg-AgCl battery. Polarization and ohmic-drop counter voltages reduce the calculated open-circuit voltage of a Mg-AgCl seawater battery from better than 2 volts to around 1 volt per cell. At pressures around 1000 atm (34,000 ft of water) hydrogen evolution should effectively cease and a higher operating voltage should result. The weight and size of a 10-kilowatt, 120-volt battery, operating for 10 hrs, is calculated to be around 3000 lbs and 10 cu ft, respectively. An appendix is included which gives the results of measuring voltage and current versus time for different seawater cells using magnesium as the negative electrode and operating in seawater at atmospheric pressure. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 05, 1965
- Accession Number
- AD0458230
Entities
People
- G. L. Maxam
- R. D. Hitchcock
Organizations
- Naval Facilities Engineering Service Center