https://doi.org/10.1051/epjconf/202023304003
Electrical response of La2/3-xLi3xTiO3 ceramics obtained by spark plasma sintering
1 Departamento de Física, Universidade Federal do Amazonas, 69077-000, Manaus, AM, Brasil
2 Departamento de Química, Universidade Federal do Amazonas, 69077-000, Manaus, AM, Brasil
3 Departamento de Física, Universidade Federal de Sergipe, 49100-000, São Cristóvão, SE, Brasil
4 Instituto Federal de Educação Ciência e Tecnologia do Amazonas, 69020-120, Manaus, AM, Brasil
5 LPMAT, Departamento de Engenharia de Materiais, Universidade Federal do Amazonas, 69077-000, Manaus, AM, Brasil
6 IFIMUP-IN, Institut of Nanoscience and Nanotechnology, Departamento de Física e Astronomia. Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
Published online: 16 April 2020
The ceramic system La2/3-xLi3xTiO3 presents as an interesting candidate to be used as an electrolyte in solid-state Li-ion batteries. In this paper the electrical response of the ceramic, La2/3-xLi3xTiO3 with x = 0.11 is reported. La2/3-xLi3xTiO3 nanoparticles were synthesized by high energy milling and sintered by Spark Plasma Sintering from an amorphous phase. After sintering, the samples were structurally characterized by XRD and Raman techniques. Measurements of complex impedance varying frequency from 1 Hz to 10 MHz and temperature from 25 °C to 270 °C were performed. The study of DC conductivity allowed us to find the contributions to the total conductivity, grain, and grain boundary of the samples. From the activation energy values, it was possible to determine the conductive mechanism corresponding to the mobility of Li+ ions.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
