VACANCY DIFFUSION IN THE INTERCALATION ELECTRODE LI-1-XNIO2

被引：75

作者：

BRUCE, PG ^{[1
]}

LISOWSKAOLEKSIAK, A ^{[1
]}

SAIDI, MY ^{[1
]}

VINCENT, CA ^{[1
]}

机构：

[1] GDANSK TECH UNIV,PL-80952 GDANSK,POLAND

来源：

SOLID STATE IONICS | 1992年 / 57卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(92)90169-P

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 rate of lithium diffusion in the layered intercalation compound Li1-xNiO2 has been investigated. The variation of the chemical diffusion coefficient, D(Li), for lithium and the self diffusion coefficient, D(Li), for Li+ ions, with lithium content is presented. The maximum value for D(Li) = 2 x 10(-7) cm2 s-1 and is amongst the highest observed for a lithium intercalation compound. Within the composition range studied, 0.5 < (1 - x) < 1.0, the ions are transported by a vacancy mechanism. A vacancy diffusion coefficient, D(v), is defined and its variation with lithium composition described. In addition, large thermodynamic enhancement factors are observed.

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页码：353 / 358

页数：6

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