Studies of the Local Structure in LixNi0.7Co0.3O2 (0.5≤x≤1.0) Cathode Materials

被引：7

作者：

Castro-Garcia, S. ^{[1
]}

Julien, C. ^{[1
]}

机构：

[1] Univ Paris 06, UMR 7603, Lab Milieux Desordonnes & Heterogenes, F-75252 Paris 05, France

来源：

IONICS | 1998年 / 4卷 / 1-2期

关键词：

Lithium; FTIR Spectroscopy; Structural Change; Electronic Material; Volume Cell;

D O I：

10.1007/BF02375787

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：

Among the LixNi1-yCoyO2 system, LiNi0.7Co0.3O2 is being considered one of the best cathode materials due to its small volume cell expansion upon charge-discharge cycling. In order to study the modifications of structural and physical properties occurring in the cathode materials during charge, different LixNi0.7Co0.3O2 samples ( 0.5 >= x >= 1.0) were prepared by electrochemical lithium deintercalation in non-aqueous cells. During the first charge of the Li//LixNi0.7Co0.3O2 cell, the structural change in the cathode lattice was followed by both x-ray powder diffraction and FTIR spectroscopy at room temperature. A good correlation is found between XRD data and the local environment of the host lattice.

引用

页码：106 / 113

页数：8

共 22 条

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