Electronic conductivity in flat plate sodium/sulphur cells (IM-EC-014)

During the course of the long term testing of sulphur electrodes in flat plate sodium sulphur cells, experiments have been prematurely terminated due to the onset of electronic conductivity in the µ-alumina holder/b-alumina disc assembly. The maximum life obtained.from these µ-alumina/b-alumina assemblies is about 15 Ah/cm². Subsequent examination of cells...