Accession Number : AD0845244

Title :   Improved Cathode Systems for High-Energy Primary Batteries,

Corporate Author : ATOMICS INTERNATIONAL CANOGA PARK CA

Personal Author(s) : Nicholson, M. M.

Report Date : 04 DEC 1968

Pagination or Media Count : 48

Abstract : This research is concerned with the influence of electronic conductivity on the performance of high-energy battery cathode systems. Because of its availability as an n-type semi-conductor, cadmium fluoride was chosen as a model cathode system for the initial study. Yttrium-doped cadmium-treated cadmium fluoride was discharged with 43% utilization at 2 ma/sq cm in a lithium perchlorate-propylene carbonate electrolyte, while the corresponding utilization efficiency for the undoped material was not more than 10%. The electrochemical results were obtained with conventional powered cathode mixtures containing 20% carbon black. In solid state conductivity measurements it was found that pressure contacts, including those of carbon, did not produce ohmic electrical connections to cadmium fluoride.

Descriptors :   (*PRIMARY BATTERIES, CATHODES(ELECTROLYTIC CELL)), SEMICONDUCTORS, VACUUM APPARATUS, ELECTROLYTES, ELECTROCHEMISTRY, PURIFICATION, ANODES(ELECTROLYTIC CELL), ELECTROLYTIC CELLS, ENERGY, DOPING, CADMIUM COMPOUNDS, FLUORIDES, ELECTRICAL CONDUCTIVITY, ELECTRIC DISCHARGES, LITHIUM COMPOUNDS, PERCHLORATES, CARBONATES, ORGANIC SOLVENTS, PROPENES, EFFICIENCY, YTTRIUM, CARBON BLACK, POLARIZATION, PELLETS, SINGLE CRYSTALS.

Subject Categories : Physical Chemistry
      Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE