Fast Ionic Conduction in Solid Electrolyte of Fuel Cells Revealed Using Coherent THz Pulses

Abstract

We demonstrate that terahertz spectroscopy, based on ultrashort optical pulse technology, is a powerful method for evaluating the solid electrolytes of fuel cells and all-solid-state batteries. The results of terahertz time-domain spectroscopy include information on fast ion motion in solids, which cannot be accessed with conventional experimental techniques.