Thermal, structural and electrical properties of Li2BaSiO4 ceramic electrolyte

Adnan, Syed Bahari Ramadzan Syed and Mohamed, Nor Sabirin and Mustaffa, Nur Amalina and Zainal, Norazlin and Ibrahim, Suriani and Radzi, Z.I. (2019) Thermal, structural and electrical properties of Li2BaSiO4 ceramic electrolyte. Ceramics International, 45 (1). pp. 1424-1429. ISSN 0272-8842

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Official URL: https://doi.org/10.1016/j.ceramint.2018.09.199

Abstract

Lithium Barium Silicate (Li2BaSiO4) solid electrolyte was prepared by Sol - gel method with citric acid as the chelating agent. Thermal, structural and electrical characterization was done using Thermogravimetric/Differential Scanning Calorimetry, X-ray Diffraction, Fourier Transform Infrared and Impedance Spectroscopy respectively. Pure phase of Li2BaSiO4 sintered at 700 °C and 800 °C showed stability at that temperature. The conductivity of the electrolyte increased linearly with temperature. The bulk conductivity of the samples sintered at 800 °C was found to be 1.45 × 10−4 S cm−1 at 500 °C. The temperature dependence also follows the Arrhenius relation with activation energy of 0.11 eV. The complex impedance analysis of the electrolyte showed a typical negative temperature coefficient of resistance (NTCR) behavior.

Item Type: Article
Uncontrolled Keywords: Ceramic; Electrolyte; Arrhenius; Conductivity; Sol-gel
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Centre for Foundation Studies in Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Jan 2019 08:44
Last Modified: 23 Jan 2019 08:44
URI: http://eprints.um.edu.my/id/eprint/20144

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