Preparation of the Solid Electrolytes Li4+xAlxSi1-xO4-y Al2O3 by the Sol-Gel Method and St

Preparation of the Solid Electrolytes Li4+xAlxSi1-xO4-y Al2O3 by the Sol-Gel Method and Study of

Their Ionic Conductivity

CHEN,Ru-Fen(陈汝芬);SONG,Xiu-Qin(宋秀芹)

【期刊名称】《中国化学（英文版）》 【年(卷),期】2002(020)001

【摘要】The Li4+xAlxSi1- xO4-yAl2O3(x =0 to 0.5, y =0 to 0.5) ion conductors were prepared by the Sol-Gel method and examined in detail. The powder and sintered samples were characterized by TG-DTA, XRD, SEM, and AC impedance techniques. The experimental results show that the conductivity and sinterability increase with the amount of excess Al2O3 in the silicate. The particle size of the powder samples is about 0. 13 μm. The maximum conductivity at 18 ℃ is 3.057 × 10-5 s/cm for Li4.4Al0.4Si0.6O4-0.3 Al2O3. 【总页数】4页(18-21)

【关键词】Li4+xAlxSi1-xO4-yAl2O3, solid electrolyte, ionic conductivity, Sol-Gel method

【作者】CHEN,Ru-Fen(陈汝芬);SONG,Xiu-Qin(宋秀芹)

【作者单位】Department of Chemistry, Hebei Normal University, Shijiazhuang, Hebei 050016, China;Department of Chemistry, Hebei Normal University, Shijiazhuang, Hebei 050016, China 【正文语种】中文

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