Electronic structure and electrochemical properties of electrode material Li7-xMnN4

被引：41

作者：

Suzuki, S

Shodai, T

机构：

[1] NTT, Sci & Core Technol Lab Grp, Tokyo 1800012, Japan

[2] NTT, Integrated Informat & Energy Syst Labs, Tokai, Ibaraki 319113, Japan

来源：

SOLID STATE IONICS | 1999年 / 116卷 / 1-2期

关键词：

charge transfer-type compound; electrochemical properties; electron energy loss spectroscopy; electronic structure; transition metal nitride;

D O I：

10.1016/S0167-2738(98)00337-3

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 electronic structure and the charge balance mechanism of the Li7-xMnN4 system were investigated by core-level electron energy loss spectroscopy. The spectra are strongly affected by configuration interactions and reveal the existence of a considerable amount of nitrogen 2p holes in the ground state. Based on the results, we conclude that the Li7MnN4 system can be classified into the charge transfer-type compounds. The systematic variation of the operating voltages versus Li/Li+ of the Li7MnN4 system and the other transition metal nitrides and oxides can be qualitatively explained by classification into the Mott-Hubbard and the charge transfer regimes. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 9

页数：9

共 37 条

[1] Preparation of LiFeO2 with alpha-NaFeO2-type structure using a mixed-alkaline hydrothermal method [J].