IONIC TRANSPORT IN THE LITHIUM NITRIDE BROMIDES, LI6NBR3 AND LI13N4BR

被引：24

作者：

HARTWIG, P

WEPPNER, W

WICHELHAUS, W

RABENAU, A

机构：

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 30卷 / 10期

关键词：

D O I：

10.1016/0038-1098(79)90105-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The ionic and electronic conductivities of the lithium nitride bromides Li6NBr3 and Li1 3N4Br have been studied in the temperature range from 50 to 220°C and 120 to 450°C, respectively. Both compounds are practically pure lithium ion conductors with negligible electronic contribution. Li6NBr3 has an ionic conductivity Ω of 2 × 10-6Ω-1cm-1 at 100°C and an activation enthalpy for σT of 0.46 eV. Li1 3N4Br shows a phase transition at about 230°C. The activation enthalpy for σT is 0.73 eV below and 0.47 eV above this temperature. The conductivities at 150 and 300°C were found to be 3.5 × 10-6 Ω-1cm-1 and 1.4 × 10-3Ω-1cm-1, respectively. The crystal structure is hexagonal at room temperature with a = 7.415 (1) A ̊ and c = 3.865 (1) A ̊. © 1979.

引用

页码：601 / 603

页数：3

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