Thermal, structural and electrical properties of Li2BaSiO4 ceramic electrolyte
Thermal, structural and electrical properties of Li2BaSiO4 ceramic electrolyte
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DOI：
10.1016/j.ceramint.2018.09.199
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发表时间：
2019
影响因子：
5.2
通讯作者：
S. Adnan;N. S. Mohamed;N. Mustaffa;N. Zainal;S. Ibrahim;Z. Radzi
中科院分区：
文献类型：
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作者：
S. Adnan;N. S. Mohamed;N. Mustaffa;N. Zainal;S. Ibrahim;Z. Radzi
以柠檬酸为螯合剂，采用溶胶-凝胶法制备了硅酸钡锂（Li 2BaSiO 4）固体电解质。热，结构和电气特性进行了使用热重/差示扫描量热法，X-射线衍射，傅里叶变换红外和阻抗谱分别。在700 °C和800 °C下烧结的纯相Li 2BaSiO 4在该温度下表现出稳定性。电解质的电导率随温度线性增加。在800 °C下烧结的样品的体积电导率在500 °C下为1.45 × 10−4S cm− 1。的温度依赖性也遵循阿克里尼乌斯关系与活化能为0.11 eV。电解液的复阻抗分析显示出典型的负电阻温度系数（NTCR）行为。
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 Li2BaSiO4sintered 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 × 10−4S cm−1at 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.