Design and Development of Micro-Reference Electrodes for the Lithium/Metal-Sulfide Cell System
Reference electrodes are being designed and developed to investigate the polarization characteristics of electrodes in Li/MS engineering cells and to carry out other electrochemical studies in these cell systems.1 The Li/MS cells, which operate at 400–450°C, utilize negative electrodes of Li-Al alloy, positive electrodes of either FeS or FeS2, and a molten LiC1-KC1 electrolyte (mp, 352°C). The reference electrodes must possess a well-defined potential, be electrochemically stable for long periods (months), and be rugged and adaptable to miniaturization. The high lithium and sulfur activities present in this cell system place stringent limitations on the materials which are suitable for the reference electrode.
KeywordsReference Electrode Stainless Steel Tubing Alloy Electrode Sulfur Activity Aluminum Wire
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