ELECTRICAL-PROPERTIES AND CRYSTAL-STRUCTURE OF SOLID-ELECTROLYTE BASED ON LITHIUM HAFNIUM PHOSPHATE LIHF2(PO4)3

被引：59
作者：
AONO, H
SUGIMOTO, E
SADAOKA, Y
IMANAKA, N
ADACHI, GY
机构：
[1] OSAKA UNIV,FAC ENGN,DEPT APPL CHEM,2-1 YAMADAOKA,SUITA,OSAKA 565,JAPAN
[2] NIIHAMA NATL COLL TECHNOL,DEPT IND CHEM,NIIHAMA,EHIME 792,JAPAN
[3] EHIME UNIV,FAC ENGN,DEPT APPL CHEM,MATSUYAMA,EHIME 790,JAPAN
来源：
SOLID STATE IONICS | 1993年 / 62卷 / 3-4期
关键词：
D O I：
10.1016/0167-2738(93)90387-I
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：
The electrical properties and the crystal structure were investigated for the ceramic electrolytes based on LiHf2(PO4)3. The conductivity enhanced by the Li2O addition with LiHf2(PO4)3 system and by the increase of x for Li1+xMxHf2-x(PO4)3 (M = Cr, Fe, Sc, In, Lu or Y) systems. The P2(1)/n monoclinic phase transformed to NASICON-type R3cBAR rhombohedral phase at above 1173 K. The activation energy for Li+ ion migration was decreased by the phase transition. The activation energy for bulk component was 0.42 eV for the NASICON-type structure. A maximum conductivity at 298 K is 1.7 x 10(-4) S.cm-1 for the sample of Li1.2Fe0.2Hf1.8(PO4)3.
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页码：309 / 316
页数：8
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