If ionic conducting, highly defective crystals are stopped by impaction, the mobile ions are accelerated inside the conduction plane. Therefore, an electric field corresponding to the separation of positive and negative charges approaches during a period of I ps. Simultaneously an inertia emf is measured between the electrodes of the galvanic cell, which is directly proportional to the mass to charge ratio of the mobile charge carriers, to the length of the galvanic cell and to the instantaneous acceleration. In this work the effect of the inertia forces on mobile cations in solid electrolytes for the first time is investigated on ceramic materials.