Accession Number : AD0624811

Title :   CHEMOELECTRIC ENERGY CONVERSION FOR NONAQUEOUS RESERVE BATTERIES.

Descriptive Note : Quarterly rept. no. 9, Jul-Sep 65,

Corporate Author : NAVAL ORDNANCE LAB CORONA CALIF

Personal Author(s) : Panzer,R. E. ; French,W. G. ; Harris,W. S. ; Daley,J. C. ; McWilliams,G. E.

Report Date : 01 NOV 1965

Pagination or Media Count : 56

Abstract : Investigation of materials for use as reference electrodes in liquid ammonia solutions was accelerated by using a polarization hysteresis method that allows rapid screening of electrodes. This method was applied to nitrided wires and disks. Models of reference electrodes of the first kind were made for use in pressurized cells. Chronopotentiometric and cyclic voltammetric techniques were applied to potassium amide and other electrolytes to determine their limiting electrochemical parameters. An investigation of the electrochemical and physical properties of ammonia-like solvent systems was begun to find a solvent with the advantages of ammonia and fewer disadvantages. As a start, the lower aliphatic amines were studied. Methylamine and ethylamine were found to be good solvents for lithium nitrate, but trimethylamine did not dissolve typical ionic compounds to form conducting solutions. The conductivity of the dilute solution increases as the solvent changes from pyridine to ethylamine to methylamine to pyridine-ammonia. Conductivity of moderately concentrated solutions was an order of magnitude less than that of ammonia solutions. Experiments conducted with single cells of 1 sq cm area indicated that solution activation produced better performance than solvent activation in cells with Mg anodes, but cells incorporating perchlorate electrolytes and an amalgamated Mg anode were erratic and will be redesigned for further study. (Author)

Descriptors :   (*WET CELLS, STORAGE BATTERIES), (*ENERGY, ELECTROCHEMISTRY), ELECTRODES, AMMONIA, LIQUIDS, ELECTROLYTES, BATTERY COMPONENTS, ELECTRIC BATTERIES, POTASSIUM, AMIDES, SOLVENTS, AMINES, ALIPHATIC COMPOUNDS, MANGANESE, ANODES(ELECTROLYTIC CELL), PERFORMANCE(ENGINEERING), OXIDIZERS

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE