The stability of orthorhombic and monoclinic-layered LiMnO2

被引：122

作者：

Ceder, G ^{[1
]}

Mishra, SK ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 1999年 / 2卷 / 11期

关键词：

D O I：

10.1149/1.1390900

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

LiMnO2 is one of only a few ternary oxides which are known to form in the orthorhombic Pmmn structure. The layered alpha-NaFeO2 structure, favored for application as a Li-insertion electrode, is found in many other alkali transition metal oxides. We find that the the strong antiferromagnetic interactions between Mn+3 ions contribute to the stabilization of the orthorhombic structure. Using first-principles pseudopotential calculations, we find that doping with Al, Co, Cr, V, Ti, Mo, Mg, Nb, Zn, and Pd helps stabilize the layered structure over the orthorhombic structure. (C) 1999 The Electrochemical Society. S1099-0062(99)06-081-2. All rights reserved.

引用

页码：550 / 552

页数：3

共 31 条

[1]

Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries [J].