Highly Zr~4+ Ion-Conducting Solid Electrolytes

摘要

Highly tetravalent zirconium-ion-conducting solid electrolytes, Zr_1+x/4TaP_3-xSi_xO_12, were developed by partially substituting the P~5+ ions in the Nasicon-type ZrTa(PO_4)_3 solid, with Si~4+ ions having larger ionic size and lower valence. Among the samples prepared, Zr_41/40TaP_2.9Si_0.1O_12 (x = 0.1) exhibited the highest Zr~4+ ion conductivity of 3.04 10~-4 S cm~-1 at 600.c.