锂(药物)
材料科学
烧结
电导率
分析化学(期刊)
离子电导率
快离子导体
扫描电子显微镜
衍射
电阻率和电导率
相(物质)
离子
离子键合
结晶学
物理化学
电解质
物理
化学
光学
电极
冶金
复合材料
有机化学
内分泌学
医学
量子力学
作者
Ziying Li,Xiujian Zhao
标识
DOI:10.1142/s1793604719500474
摘要
NASICON-type samples with different amount of excess lithium content in starting materials, Li[Formula: see text]Al[Formula: see text]Ti[Formula: see text](PO 4 ) 3 ([Formula: see text]), were prepared by conventional solid-state reaction. Effect of excess lithium and sintering conditions on composition and electrical properties of LATP were investigated. X-ray diffraction and Scanning electron microscopy were used to characterize the composition, crystal structure and morphology, respectively. The total ionic conductivities of samples were measured by AC-impedance spectra. The optimal addition amount of excess Li was found to be 40[Formula: see text]mol.% with the highest conductivity of [Formula: see text][Formula: see text]S/cm at [Formula: see text]C. The improvement of the conductivity of LATP can be attributed to the increasing of Li[Formula: see text] carriers and the formation of glassy phase in samples which acted as binders and provided excess Li ion vacancies for lithium transport.
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