THE STRUCTURE OF LOW-TEMPERATURE CRYSTALLIZED LICOO2

被引：104

作者：

GARCIA, B

BARBOUX, P

RIBOT, F

KAHNHARARI, A

MAZEROLLES, L

BAFFIER, N

机构：

[1] UNIV PARIS 06,CHIM MAT CONDENSEE LAB,F-75005 PARIS,FRANCE

[2] ENSCP,CHIM APPL ETAT SOLIDE LAB,F-75005 PARIS,FRANCE

[3] CECM,F-94400 VITRY,FRANCE

来源：

SOLID STATE IONICS | 1995年 / 80卷 / 1-2期

关键词：

LITHIUM INTERCALATION; COBALT OXIDE; SOLUTION SYNTHESIS; X-RAY ABSORPTION; CATIONIC DISORDER;

D O I：

10.1016/0167-2738(95)00117-O

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 LiCoO2 phase has been synthesized by a solution technique at a temperature as low as 300 degrees C within a few days or after very short times at 400 degrees C. The phase exhibits electrochemical properties different from those observed in the material obtained by conventional synthesis at higher temperature. X-ray absorption spectroscopy and Li MAS-NMR show that both Li and Co occupy octahedral sites similar to the classical structure. EXAFS spectroscopy and High Resolution Transmission Electronic Microscopy (HRTEM) indicate a disordering of the Co and Li planes resulting in a cubic NaCl-type structure associated to a distribution of Co and Li among the octahedral sites of a cubic-close-packed array of oxygen.

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页码：111 / 118

页数：8

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