Preparation and Characterization of  Li1+xAlxTi2-x(PO4)3(x=0~0.4) by Sol-Gel Method

Abstract

Abstract: Solid electrolyte Li_1+xAl_xTi_2-x(PO₄)₃(x=0~0.4) was prepared using CH₃COOLi·2H₂O,Al(NO₃)₃·9H₂O,(NH₄)H₂PO₄,Ti(OC₄H₉)₄ as raw materials by sol-gel technique.The test results show that Li_1+xAl_xTi_2-x(PO₄)₃ prepared by sol-gel has better cystallintiy.Crystallinity and structure have little difference between the powder and sintered pellet.The ionic conductivity increases first and then decreases with the increase of Al3+ content.When doping amount is 0.3,the ionic conductivity is higher.The change of activation energy is contrary to that of the ionic conductivity.

Key words: sol-gel, solid state electrolyte, A C. impedance, ionic conductivity

LI Run-Xiu, WU Xian-Ming, CHEN Shang, HE Ze-Qiang. Preparation and Characterization of Li_1+xAl_xTi_2-x(PO₄)₃(x=0~0.4) by Sol-Gel Method[J]. journal6, 2009, 30(3): 102-104.

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Preparation and Characterization of Li_1+xAl_xTi_2-x(PO₄)₃(x=0~0.4) by Sol-Gel Method

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