Comparative study of porous iron electrodes

Abstract Sintered porous iron electrodes prepared from various materials were tested and compared with similar electrodes from different manufacturers. The important role of sulfide ions as activating agent was substantiated. A common feature of the electrodes under study is a relatively high rate of self-discharge, which can only partly be attributed to the presence of impurities, mainly manganese, in the active material and/or in the current collector.