Studies on a New System of Lithium Fast Ion Conductors Based on Kaolinite and LiZr 2(PO4)3

Chemical Research in Chinese Universities ›› 1997, Vol. 13 ›› Issue (2): 146-149.

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Studies on a New System of Lithium Fast Ion Conductors Based on Kaolinite and LiZr 2(PO₄)₃

HUANG Jian-dong¹, LIN Bin², WANG Wen-ji¹

1. Department of Chemistry, Fuzhou University, Fuzhou 350002;
2. Department of Chemical Engineering, Fuzhou Industry School, Fuzhou 350052

Received:1997-01-09 Online:1997-04-24 Published:2011-08-17
Supported by:
Supported by the National Natural Science F undation of China.

Abstract

Abstract: Natural layered aluminosilicate Kaolinite Al₄[Si₄O₁₀ ](OH)₈ has been used as a starting material for preparing a new system of lithium fast ion conductors by high temperature(1073—1223 K) solid state reactions. X ray powder diffraction and a.c. impedance technique were used to characterize the compositions of the Li_1+2x Al_x Zr 2_-x Si_x P_3-x O₁₂ system. A single pure solid solution phase with R3c space group can be formed in the composition range of x ≤0.4. A specimen with x =0.3 possesses a maximum ionic conductivity which reaches up to 1.03×10^-2 s/cm at 723 K and the activation energy is 29.63 kJ/mol.

Key words: Kaolinite, Fast ion conductor, Lithium

HUANG Jian-dong, LIN Bin, WANG Wen-ji . Studies on a New System of Lithium Fast Ion Conductors Based on Kaolinite and LiZr 2(PO₄)₃[J]. Chemical Research in Chinese Universities, 1997, 13(2): 146-149.

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Studies on a New System of Lithium Fast Ion Conductors Based on Kaolinite and LiZr 2(PO₄)₃

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