Abstract Lithium ion-conductive composites have been prepared by dispersing perovskite Li0.348La0.55TiO3 (LLTO) particles in a NASICON-type Li1.5Al0.5Ge1.5(PO4)3 (LAGP) matrix. Powder X-ray diffraction suggests that the matrix/particle reaction occurs during the sintering process, where LLTO decomposes into LaPO4 particles as well as substituting the Ge4+ in the LAGP matrix with Ti4+. An increase in electrical conductivity by the LaPO4 particle dispersion is observed at the introduction of 4 wt% LLTO to reach the highest conductivity of 4.04 × 10−4 S cm−1. Galvanostatic tests using asymmetric electrodes indicate that lithium ions are the predominant charge carrier in this type of composite electrolyte.

中文翻译：

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LAGP-LLTO锂离子导电复合材料的合成与表征

摘要 通过将钙钛矿 Li0.348La0.55TiO3 (LLTO) 颗粒分散在 NASICON 型 Li1.5Al0.5Ge1.5(PO4)3 (LAGP) 基体中，制备了锂离子导电复合材料。粉末 X 射线衍射表明基体/颗粒反应发生在烧结过程中，其中 LLTO 分解为 LaPO4 颗粒以及用 Ti4+ 取代 LAGP 基体中的 Ge4+。在引入 4 wt% LLTO 时观察到 LaPO4 颗粒分散体的电导率增加，达到 4.04 × 10-4 S cm-1 的最高电导率。使用不对称电极的恒电流测试表明，锂离子是此类复合电解质中的主要电荷载体。