Accession Number : AD0615114

Title :   A PRELIMINARY STUDY OF FACTORS AFFECTING MAGNESIUM DRY CELL PERFORMANCE CHARACTERISTICS,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Wood,Donald B.

Report Date : FEB 1965

Pagination or Media Count : 23

Abstract : Preliminary investigations were carried out to determine the cell parameters that influence the 'delayed action' of 'N' size magnesium dry cells when subjected to the duty cycle and drain rate encountered in the AN/PRT-4 radio set. High concentrations (5N) of magnesium perchlorate electrolyte, protective films such as Cramolin, applied to the anode, and low concentrations of chromate ion were found to be beneficial in reducing the delayed action characteristic of the magnesium dry cell, but had a deleterious influence on the service capacity of the cell. Cells incorporating more active electrolytes such as MgCl2, LiCl and MgBr2 and various mixed perchlorates and mixed bromides were evaluated. None of these electrolytes resulted in cells that performed better than cells incorporating magnesium perchlorate electrolyte when both delayed action and service capacity were considered. There is little difference between cells made with AZ10 alloy cans and AZ21 cans with regard to service and delayed action characteristics. (Author)

Descriptors :   (*DRY BATTERIES, PERFORMANCE (ENGINEERING)), (*PRIMARY BATTERIES, PERFORMANCE (ENGINEERING)), MAGNESIUM, ELECTROLYTES, MAGNESIUM COMPOUNDS, PERCHLORATES, CHLORIDES, BROMIDES, LITHIUM COMPOUNDS, ANODES (ELECTROLYTIC CELL), COATINGS, MAGNESIUM ALLOYS, ALUMINUM ALLOYS, ZINC ALLOYS, RADIO EQUIPMENT, POWER SUPPLIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE