Sn-substituted LiMn2O4 thin films prepared by RF magnetron sputtering

被引：3
|
作者：
Shin, Dong Wook [1 ,2 ]
Yoon, Seok-Jin [1 ]
Choi, Ji-Won [1 ]
机构：
[1] Korea Inst Sci & Technol, Elect Mat Res Ctr, Seoul 136791, South Korea
[2] Univ Texas Austin, Texas Mat Inst, Cockrell Sch Engn, Austin, TX 78712 USA
来源：
SOLID STATE SCIENCES | 2013年 / 16卷
基金：
新加坡国家研究基金会;
关键词：
Films; Microstructure; Electrochemical properties; Spinels; Batteries; CATHODE MATERIALS; SPINEL CATHODE; LITHIUM; TRANSITION; BATTERIES; ELECTRODE; DENSITY;
D O I：
10.1016/j.solidstatesciences.2012.10.013
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The spinel thin films of LiMn2O4 and LiSn0.0125Mn1.975O4 prepared by RF magnetron sputtering were studied with focusing on structural and electrochemical properties. The LiSn0.0125Mn1.975O4 thin films showed the superior properties, i.e., a high capacity retention of 94% at the current rate of 5 C after 90 cycles, due to the increase in Mn valence and the decrease in oxygen deficiency. The larger oxygen deficiency in undoped LiMn2O4 thin films was confirmed by the increased lattice volume and structural degeneration. (C) 2012 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：13 / 15
页数：3
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