Data for publication: A comparative study of LiTa2PO8 ceramics prepared with different lithium sources

This dataset contains experimental results obtained using multiple complementary techniques to assess the impact of different Li sources on the structural, microstructural, and electrical properties of LiTa2PO8 (LTPO) ceramics. The following characterization methods were employed:X-ray Diffraction (XRD): Used to determined the phase composition of the synthesized materials.Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR): Applied to analyze the local environment of 6Li / 7Li and 31P nuclei, providing insights into chemical composition changes within grains and grain boundary phases.Thermomechanical Analysis (TMA): Conducted to determine optimal sintering conditions for ceramic processing.Scanning Electron Microscopy and Energy Dispersive X-ray Spectroscopy (SEM/EDX): Performed to examine microstructure, grain size, porosity, and elemental composition, including elemental distribution mapping.Density Measurements (Archimedes Method): Used to assess the degree of densification in the ceramic samples.Impedance Spectroscopy (IS): Applied to evaluate the influence of different Li sources on grain and grain boundary ionic conductivity, with temperature-dependent measurements ranging from –30°C to 100°C, allowing for an analysis of lithium-ion transport mechanisms.Constant Current Tests (Hebb-Wagner Method): Performed to determine the electronic and ionic transference numbers, providing insights into charge transport characteristics.This dataset provides a comprehensive analysis of LiTa2PO8 ceramics, supporting research on their electrical, structural and microstructural properties. This dataset includes a readme.txt file. Please refer to it for additional details and instructions on data usage.