Accession Number : AD0742720

Title :   Low Temperature Electrochemical System.

Descriptive Note : Semiannual technical rept. no. 1, 1 Jul-31 Dec 71,

Corporate Author : TYCO LABS INC WALTHAM MASS

Personal Author(s) : Malachesky,Paul A. ; Cahill,Kathleen

Report Date : MAY 1972

Pagination or Media Count : 59

Abstract : Studies have been carried out on the factors influencing low temperature operation of air electrodes in metal-air batteries (such as zinc-air). Using a typical Teflon-bonded platinum black electrode structure, the pertinent parameters which describe the temperature dependence of the electrochemical and transport processes have been determined in 31% KOH electrolyte. The temperature could lead to problems in low temperature operation of zinc-air cells. Comparisons of the low temperature operation of different air electrode materials have revealed a distinct dependence of the transport-limited current on electrode structure, indicating a possible approach to improved low temperature operation of air electrodes via modifications in air electrode structure. (Author)

Descriptors :   (*LOW TEMPERATURE BATTERIES, ZINC), (*CATHODES(ELECTROLYTIC CELL), *ZINC), ELECTROCHEMISTRY, AIR, TRANSPORT PROPERTIES, POLARIZATION, OXYGEN, REDUCTION(CHEMISTRY), ALKALINE BATTERIES

Subject Categories : Physical Chemistry
      Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE