Thermoelectric Power of M-H Systems in Molten Salts and Application to M-H Thermogalvanic Cell

Abstract

The thermoelectric power of in the coexisting phase state and in the coexisting phase state was estimated as 0.39 and 0.20 mV respectively, in a LiCl-KCl eutectic melt containing 1.0 mol % hydride ion at 673-773 K. Using the standard formal potentials of in this temperature range, the thermoelectric powers of many kinds of metal hydrides were estimated from the reported data of equilibrium hydrogen pressure-temperature relations. Using these results, the feasibility of the M-H-type thermogalvanic cell, which uses electrochemical reactions between hydrogen-absorbing metals and hydride ion in molten salts, is discussed. © 2003 The Electrochemical Society. All rights reserved.