Li_xLa_(1−x)/3NbO₃ single crystals with various Li compositions (x = 0.05–0.15) were grown via the travelling solvent floating zone (TSFZ) method. The electron probe microanalysis (EPMA) and inductively couple plasma (ICP) analyses revealed that there is Li evaporation from the molten zone during crystal growth due to high temperature treatment. However, the Li concentration in the grown crystals increased as the nominal composition in the feeds increased. Additionally, the grown crystal of Li_xLa_(1−x)/3NbO₃ (x = 0.05–0.15) showed uniform composition measured by EPMA X-ray intensity distribution except when x = 0.15. The experimental result confirmed that the ionic conductivity of Li_xLa_(1−x)/3NbO₃ (x = 0.05–0.15) showed a maximum of σ = 1.2 × 10⁻⁴ S cm⁻¹ with x = 0.07 composition in the grown crystal. The anisotropy of ionic conductivity was measured along the [100] and [001] directions of the solid electrolyte of the Li_xLa_(1−x)/3NbO₃ (x = 0.05–0.15) single crystal. The maximum anisotropic ionic conductivity of the crystals annealed in oxygen was σ_[100]/σ_[001] ≈ 1.6.

 通过行进溶剂浮游区（TSFZ）方法生长具有各种Li组成（x = 0.05-0.15）的Li _x La _{（1- x）/ 3} NbO ₃单晶。电子探针微分析（EPMA）和电感耦合等离子体（ICP）分析显示，由于高温处理，在晶体生长过程中，锂从熔融区蒸发掉。然而，随着进料中标称组成的增加，生长晶体中的Li浓度也增加。另外，生长的Li _x La _{（1- x）/ 3} NbO ₃（x = 0.05–0.15）表示通过EPMA X射线强度分布测量的均匀成分，除非x  = 0.15。实验结果证实，Li _x La _{（1- x）/ 3} NbO ₃（x  = 0.05-0.15）的离子电导率最大为σ= 1.2×10 ^-4  S cm ^-1，x  = 0.07。生长的晶体。沿着Li _x La _{（1- x）/ 3} NbO ₃（x _）的固体电解质的[100]和[001]方向测量离子电导率的各向异性 = 0.05–0.15）单晶。在氧退火结晶的最大各向异性离子导电率为σ _[100] /σ _[001]  ≈1.6。