Te-doped NASICON-type Li_1.3Al_0.3Ti_1.7(PO₄)₃ (LATP) electrolyte materials were prepared by ball milling-assisted solid state method. The structural, morphological, and transport properties of samples were analyzed through X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscope, energy dispersive X-Ray spectroscopy, electrochemical impedance spectroscopy, and DC polarization to determine optimal doping concentration. High total ionic conductivity of 7.03 × 10⁻⁴ S cm⁻¹ and negligible electronic conductivity of 7.64 × 10⁻⁹ S cm⁻¹ were obtained at room temperature for Li_1.3Al_0.3Te_0.03Ti_1.67(PO₄)₃ electrolyte. Interface characteristics analysis of electrolyte materials with Li electrode showed that voltage profile of Li/Li_1.3Al_0.3Te_0.03Ti_1.67(PO₄)₃/Li cell remained stable after 300 h of cycling with current density of 0.02 mA cm⁻². Good cyclic stability at different temperatures was also demonstrated, with doped electrolyte presenting better interface stability than pure LATP. These results suggest that Te-doped LATP materials can be used as alternative solid electrolyte for all solid-state lithium-ion batteries.

采用球磨辅助固态法制备了掺Te的NASICON型Li _1.3 Al _0.3 Ti _1.7 (PO ₄ ) ₃ (LATP)电解质材料。通过 X 射线衍射、X 射线光电子能谱、扫描电子显微镜、透射电子显微镜、能量色散 X 射线光谱、电化学阻抗谱和直流极化分析样品的结构、形态和传输特性，以确定最佳掺杂专注。7.03 × 10 ^-4 S cm ^{-1 的}高总离子电导率和 7.64 × 10 ^-9 S cm ^{-1 的}可忽略的电子电导率在室温下获得 Li _1.3 Al _0.3 Te _0.03 Ti _1.67 (PO ₄ ) ₃电解质。电解质材料与锂电极的界面特性分析表明，Li/Li _1.3 Al _0.3 Te _0.03 Ti _1.67 (PO ₄ ) ₃ /Li 电池的电压曲线在电流密度为 0.02 mA cm ^-2循环 300 h 后保持稳定. 还证明了在不同温度下的良好循环稳定性，掺杂电解质表现出比纯 LATP 更好的界面稳定性。这些结果表明，掺 Te 的 LATP 材料可用作所有固态锂离子电池的替代固体电解质。