Ionic conductivity and crystal structure of Li1+xTi2−xInxP3O12

On the influence of the cation vacancy on lithium conductivity of Li1+xRxTi2−x(PO4)3 Nasicon type materials

“…When titanium is partially substituted by trivalent R cations (R = Al, Ga, In, Fe, Sc, etc.) lithium conductivity increases in a significant way [12][13][14][15][16][17][18][19]. This increment has been ascribed to the creation of vacant Li1 sites at the intersection of conduction pathways.…”

Li1.14Nb0.93Sc0.67Cr0.40(PO4)3

“…In the course of studies concerning Nasicon-type Li ionic conductors, three extremes of cationic conductivity values at 573K were found for Lil+xTi2-xInx(PO4)3, correlated with the existence of three distinct phases: phase I for 0 _< x _< 0.4 (space group R3c), phase II for 0.4 < x < 1.1 (Pbca) and phase HI for 1.1 _< x _< 2 (P2dn) (Hamdoune, Tran Qui & Schouler, 1986). Phases I and II are found in Lil-xTi~-xTi~(PO4)3 for 0 _< x _< 0.5 and 0.5 < x < 1.2, respectively (Wan [: Greenblatt, Wang & Hwu, 1993).…”

Synthesis and Electrochemical Properties of LATP-LLTO Lithium Ion Conductive Composites

“…3 NASICON-type structured Li 1+x M x Ti 2¹x (PO 4 ) 3 (M = Sc, Al, Fe, Ga or In) has been studied for a long time. [4][5][6] In particular, Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) with partial substitution of Ti 4+ cation by Al 3+ is much attractive because of its high ionic conductivity at room temperature. 7 Nevertheless, the ionic conductivity of LATP is still lower than liquid-based electrolytes (e.g.…”