The study of novel multi-doped spinel Li1.15Mn1.96Co0.03Gd0.01O4+δ as cathode material for Li-ion rechargeable batteries

被引：24
作者：
Sun, Xiaojie [1 ]
Hu, Xiaohong [1 ]
Shi, Yan [1 ]
Li, Shengxian [1 ]
Zhou, Yuanquan [1 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China
来源：
SOLID STATE IONICS | 2009年 / 180卷 / 4-5期
关键词：
Lithium-ion battery; Cathode material; Spinel LiMn2O4; Li; Co; Gd-doped; Solid-state reaction; ELECTROCHEMICAL PROPERTIES; TEMPERATURE PERFORMANCE; ELEVATED-TEMPERATURE; LITHIUM BATTERIES; LIMN2O4; CATHODE; THIN-FILMS; CYCLEABILITY; BEHAVIOR; CELLS; CO;
D O I：
10.1016/j.ssi.2009.01.011
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：
Novel spinel Li1.15Mn1.96Co0.03Gd0.01O4+delta Was synthesized by high temperature solid-state reaction method. The product was identified as well-defined spinel phase by X-ray diffraction (XRD); the SEM images illustrated that the particle distribution was well-proportioned. The initial special capacity was 126.5 and 128.1 mAh g(-1) at 25 and 50 degrees C. The fading rate was 0.017% and 0.098% per cycle under 0.5 degrees C at 25 and 50 degrees C, respectively. The results showed that Li1.15Mn1.96Co0.03Gd0.01O4+delta,s displayed excellent capacity and cycleability. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：377 / 380
页数：4
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