STRUCTURE AND CONDUCTIVITY OF AN LI4SIO4-LI2SO4 SOLID-SOLUTION PHASE

被引：27

作者：

DISSANAYAKE, MAKL ^{[1
]}

WEST, AR ^{[1
]}

机构：

[1] UNIV ABERDEEN,DEPT CHEM,ABERDEEN AB9 2UE,SCOTLAND

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1991年 / 1卷 / 06期

关键词：

LITHIUM ION CONDUCTOR; LITHIUM SILICATE; LITHIUM SULFATE; SOLID ELECTROLYTE;

D O I：

10.1039/jm9910101023

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the system Li4SiO4-Li2SO4, phase-diagram studies show the existence of a narrow range of stable gamma-solid solutions, Li4-2x(Si1-xSx)O4: 0.30 < x < 0.045. These have high Li+ ion conductivity with maximum values for x almost-equal-to 0.40 of 1.32 x 10(-6) S cm-1 at 25-degrees-C, rising to 8.5 x 10(-3) S cm-1 at 300-degrees-C and an activation energy of 0.80 eV. The gamma solid solutions are structurally related to orthorhombic gamma-Li3PO4 and contain interstitial Li+ ions; for x = 0.40, a = 6.187(2) angstrom, b = 10.621(3) angstrom, c = 5.008(3) angstrom.

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页码：1023 / 1025

页数：3

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