Solubility range and ionic conductivity of large trivalent ion doped Na1+xMxZr2-xP3O12 (M : In, Yb, Er, Y, Dy, Tb, Gd) solid electrolytes

Miyajima Y; Miyoshi T; Tamaki J; Matsuoka M; Yamamoto Y; Masquelier C; Tabuchi M; Saito Y; Kageyama H

Solid State Ionics, Vol.124, No.3-4, 201-211, 1999

DOI10.1016/S0167-2738(99)00116-2 Export Citation

Solubility range and ionic conductivity of large trivalent ion doped Na1+xMxZr2-xP3O12 (M : In, Yb, Er, Y, Dy, Tb, Gd) solid electrolytes

Miyajima Y, Miyoshi T, Tamaki J, Matsuoka M, Yamamoto Y, Masquelier C, Tabuchi M, Saito Y, Kageyama H

Trivalent cation-doped sodium zirconium phosphates Na1-xMxZr2-xP3O12 (M: In, Yb, Er, Y, Dy, Tb, and Gd; 0 less than or equal to x less than or equal to 2) were prepared, and their solubility Limit and electrical conductivity were examined. There exist two types of NASICON-related phases, previously reported (M-NZP) and newly observed ones (NMP; x = 1.0-1.9 for M = Yb, Er, Y, Dy, and Tb). NMP is a metastable phase and easily absorbs water. Arrhenius plots show linearity within the M-NZP phase region while some kinks within the NMP phase region, indicating the difference of the conduction mechanism between both phases,

Keywords:CRYSTAL-CHEMISTRY;TRANSPORT;CR