Electrochemical characteristics of LiNi0.5Mn1.5O4 prepared by spray drying and post-annealing

被引：63

作者：

Li, Decheng

Ito, Atsushi

Kobayakawa, Koichi

Noguchi, Hideyuki

Sato, Yuichi

机构：

[1] Kanagawa Univ, High Tech Res Ctr, Tsurumi Ku, Yokohama, Kanagawa 2218686, Japan

[2] Kanagawa Univ, Fac Engn, Dept Appl Chem, Yokohama, Kanagawa 2218686, Japan

[3] Saga Univ, Dept Appl Chem, Saga 8408502, Japan

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 05期

关键词：

Li-ion battery; cathode material; LiNi0.5Mn1.5O4; electrochemical properties; spray drying and post-annealing;

D O I：

10.1016/j.electacta.2006.07.056

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

LiNi0.5Mn1.5O4 was prepared by a spray drying and post-annealing process. The re-annealing treatment in O-2 could not only decrease the Mn3+ content, but also increased the reversible capacity and significantly improve the rate capability compared to the untreated material. Moreover, the cyclic performance of the LiNi0.5Mn1.5O4 depends on both the cycling rate and operating temperature, which was ascribed to the difference between the phase transition rates between cubic I <-> cubic II and cubic II <-> cubic III. (c) 2006 Published by Elsevier Ltd.

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页码：1919 / 1924

页数：6

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