离子电导率
拉曼光谱
介电谱
电解质
材料科学
分析化学(期刊)
电导率
煅烧
丙酮
烧结
微观结构
扫描电子显微镜
红外光谱学
光谱学
锂(药物)
化学
物理化学
色谱法
有机化学
电化学
冶金
电极
量子力学
催化作用
复合材料
内分泌学
物理
光学
医学
作者
Yi Huang,Yue Jiang,Yue Zhou,Zhiwei Hu,Xiaohong Zhu
标识
DOI:10.1002/celc.201901687
摘要
Abstract Hydrothermal synthesis is used to successfully prepare Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) solid electrolytes with high lithium‐ion conductivity, typically being 0.213 mS cm −1 . The best calcination and sintering temperatures are optimized to be 900 and 1075 °C, respectively. The solvent effects on conductivity and microstructure of LATP in water, ethanol and acetone are investigated by using impedance spectroscopy and scanning electron microscopy. The conductivity of LATP in water reaches 1.167 mS cm −1 . In ethanol, the conductivity of LATP is 0.464 mS cm −1 . There is no significant change in acetone. The structural stability of LATP after immersing in liquid solutions is verified by X‐ray diffraction and Raman spectroscopy. It is found by infrared spectroscopy that the change in conductivity is related to the adsorbed OH bond, and the reason for the increase in conductivity is discussed.
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