Effect of calcination conditions on lithium conductivity in Li1.3Ti1.7Al0.3(PO4)3 prepared by sol-gel route
Effect of calcination conditions on lithium conductivity in Li1.3Ti1.7Al0.3(PO4)3 prepared by sol-gel route
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DOI：
10.1007/s11581-016-1883-y
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发表时间：
2017-04-01
期刊：
影响因子：
2.8
通讯作者：
Hoffmann, M. J.
中科院分区：
文献类型：
--
作者：
Schell, K. G.;Bucharsky, E. C.;Hoffmann, M. J.
为了研究粉体煅烧温度对锂离子电导率的影响，合成了Li1.3Ti1.7Al0.3（PO 4）（3）（LATP）粉体，并在750 ~ 900 ℃下进行了煅烧。采用扫描电子显微镜（SEM）表征颗粒的形状和尺寸，并测量所得粉末的比表面积。根据XRD谱计算了不同热处理粉末的结晶度等级。随后，所有粉末在1100摄氏度下采用场辅助烧结（SPS）烧结，并且电性能与煅烧条件相关。对于由在900摄氏度下煅烧的粉末制成的样品，观察到最高的离子电导率。
In order to study the influence of powder calcination temperature on lithium ion conductivity, synthesized Li1.3Ti1.7Al0.3(PO4)(3) (LATP) was calcined at temperatures between 750 and 900 degrees C. The shape and size of the particles were characterized employing scanning electron microscopy (SEM), and specific surface area of the obtained powder was measured. The crystallinity grade of different heat-treated powders was calculated from XRD spectra. Posteriorly, all powders were sintered at 1100 degrees C employing field-assisted sintering (SPS), and the electrical properties were correlated to the calcination conditions. The highest ionic conductivity was observed for samples made out of powders calcined at 900 degrees C.