【作者】 刘桂荣； 刘慧勇； 王文继；

【Author】 LIU Gui-rong;LIU Hui-yong;WANG Wen-ji Department of Chemistry Fuzhou University Fuzhou, 350002, China

【机构】 福州大学化学系；

【摘要】 以Li₁₄Zn（GeO₄）₄为母体,通过高温固相反应,合成了Li_14-11xZn_1-xSc_2xGe_4-4xP_3xO_16-4x（x=0.1～0.9）系统的锂快离子导体。X射线粉末衍射表明当x≤0.3时系统仍维持原母体的结构（正交晶系）,但出现新的物相Li₂GeO₃;x>0.5时结构发生明显变化,系统转变成R3C。红外检测显示当x≤0.7红外谱图中出现Li₂CO₃吸收峰表明在室温下体系中存在Li₂CO₃。交流阻抗测试表明当温度大于200℃时系统有较高的电导率,最高为7.32×10^-2S/cm（400℃,x=0.3）;在300℃时体系有相变存在。更多还原

【Abstract】 Lithium fast conductors of Li_14-11xZn_1-xSc_2xGe_4-4xP_3xO_16-4x（x=0.1～0.9） system based on Li₁₄Zn（GeO₄）₄ wereprepared by solid state reaction at high temperature. X-ray powder patterns showed that the system maintain the structureof orthorhombic but formed the second phase of Li₂GeO₃ while x≤0.3; And the structure changed obviously to R3cwhen x>0.5. IR indicated when x≤0.7 the system had the substance of Li₂CO₃.A.C impedance measurements indicatewhen the temperature above 200 the system have a good ionic conductivity,the best ionic conductivity is as high as 7.32×10^-2S/cm （400℃, x=0.3）; the system has a phase transition at 300.更多还原