| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 180209 | Electrochemistry Communications | 2011 | 4 Pages |
The garnet-related oxide with general formula Li6La3ZrTaO12 was prepared by conventional solid-state reaction. X-ray diffraction (XRD) and AC impedance were used to determine phase formation and the lithium-ion conductivity. The structures were refined by the Rietveld method from powder X-ray diffraction data. Li6La3ZrTaO12 is cubic and crystallizes in the space group Ia-3d with room-temperature lattice parameter a = 12.8873 Å. The bulk and total lithium ion conductivities of Li6La3ZrTaO12 at 25 °C were 2.5 × 10−4 S cm−1 and 1.8 × 10−4 S cm−1, respectively; the activation energy was about 0.42 eV in the temperature range 298–450 K.
► A garnet-related oxide Li6La3ZrTaO12 was obtained by solid-state reaction. ► The bulk and total Li+-ion conductivities at 25 °C are 2.5 × 10−4 and 1.8 × 10−4 S cm−1. ► The activation energy is about 0.42 eV in the temperature range 298–450 K. ► It is stable on contact with a metallic lithium anode.
