Open AccessLITHIUM IONIC CONDUCTIVITY OF LISICON SINGLE CRYSTALS
Author(s) -
陈立泉,
王昌庆,
王连忠,
肖超亮,
毕建清
Publication year - 1980
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.29.661
Subject(s) - ionic conductivity , materials science , conductivity , anisotropy , ionic bonding , lithium (medication) , activation energy , analytical chemistry (journal) , conductor , electrical resistivity and conductivity , polarization (electrochemistry) , lithium niobate , condensed matter physics , ion , optics , chemistry , physics , electrode , electrolyte , optoelectronics , organic chemistry , medicine , chromatography , quantum mechanics , composite material , endocrinology
Lithium ionic conductivity of LISICON single crystals grown by Czochralski method has been investigated. It was found that the conductivities in different orientations do not show strong anisotropy and the relations between them are: σb≤σa≤σc≤σ[110]. The lithium content in the crystals have obvious influence on conductivity. When Li/Zn ratio changes from 6.7 to 9.2, the conductivity in a-direction at 300℃ increases from 4.3 × 10-2Ω-1·cm-1 to 1.25×10-1Ω-1·cm-1. Three transition points at 80℃, 140℃ and 300℃ have been shown in logσT vs. 1/T curves. The activation energy for conduction are 0.5-0.58 eV (25-80℃), 0.92 eV (80-140℃), 0.64 eV (140-300℃) and 0.36 eV (> 300℃) respectively. The polarization experiments indicated that LISICON is a lithium ionic conductor with negligible electronic conductivity.