Accession Number : AD0859690

Title :   Failure Mechanisms and Analyses of Sealed Batteries.

Descriptive Note : Technical rept. 1 Feb 68-30 Apr 69,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO COLUMBUS LABS

Personal Author(s) : Reed,Allan H. ; Cover,Paul W. ; McCallum,John

Report Date : SEP 1969

Pagination or Media Count : 89

Abstract : Results of tear-down analysis of uncycled nickel-cadmium from four manufacturers are presented. Analysis of the electrolyte extracted from the cells shows that a significant amount of carbonate is present in cells which have not been cycled. Failure-analysis procedures have been developed for nickel-cadmium and silver-zinc cells. Loss of electrolyte was the major failure determinant in the silver-zinc cells which were analyzed. A possible mechanism by which loss of capacity can occur when carbonate is produced during cell operation is discussed. (Author)

Descriptors :   (*STORAGE BATTERIES, RELIABILITY), ALKALINE BATTERIES, AIR FORCE EQUIPMENT, TEST METHODS, ELECTROCHEMISTRY, ELECTROLYTES, VISUAL INSPECTION, FAILURE(MECHANICS), ELECTRICAL PROPERTIES

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE