Rate capability of spinel LiCr0.1Ni0.4Mn1.5O4

被引：23
作者：
Liu, G. Q. [1 ]
Wen, L. [2 ]
Liu, G. Y. [1 ]
Tian, Y. W. [1 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 501卷 / 02期
关键词：
LiCr0.1Ni0.4Mn1.5O4; Li-ion batteries; Cathode material; Properties; Rate capability; CATHODE MATERIALS; ELECTROCHEMICAL CHARACTERISTICS; LINI0.5MN1.5O4; BATTERIES; ELECTRODE; SUBSTITUTION; PERFORMANCE; MN;
D O I：
10.1016/j.jallcom.2010.04.076
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 spinel compound LiCr0.1Ni0.4Mn1.5O4 is synthesized by a sol-gel method In this synthesizing process, Li(CH3COO)2H(2)O, Ni(CH3COO)(2) 4H(2)O, Mn(CH3COO)(2) 4H(2)O and Cr(NO3)(3) 9H(2)O are used as reactants, and malic acid as chelating agent The reaction takes place at 900 degrees C for 8 h. The electrochemical performances of the as-prepared sample are measured at different current rates In the range of 3.5-5.0 V, its discharge capacities are 141, 125 and 95 mAh g(-1) at 0.5, 1 and 5C, respectively. Based on cycle voltammerry results, the diffusion coefficient of Li+ is calculated as 6.75 x 10(-10) cm(2) s(-1) at 407 V in oxidation process. (C) 2010 Elsevier B V. All rights reserved
引用
收藏
页码：233 / 235
页数：3
相关论文
共 20 条
[1]   Chromium doping as a new approach to improve the cycling performance at high temperature of 5 VLiNi0.5Mn1.5O4-based positive electrode [J].
Aklalouch, Mohamed ;
Manuel Amarilla, Jose ;
Rojas, Rosa M. ;
Saadoune, Ismael ;
Maria Rojo, Jose .
JOURNAL OF POWER SOURCES, 2008, 185 (01) :501-511
[2]   Sub-micrometric LiCr0.2Ni0.4Mn1.4O4 spinel as 5 V-cathode material exhibiting huge rate capability at 25 and 55 °C [J].
Aklalouch, Mohamed ;
Manuel Amarilla, Jose ;
Rojas, Rosa M. ;
Saadoune, Ismael ;
Maria Rojo, Jose .
ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (04) :548-552
[3]   Changes in the local structure of LiMgyNi0.5-yMn1.5O4 electrode materials during lithium extraction [J].
Alcántara, R ;
Jaraba, M ;
Lavela, P ;
Tirado, JL ;
Zhecheva, E ;
Stoyanova, R .
CHEMISTRY OF MATERIALS, 2004, 16 (08) :1573-1579
[4]   New LiNiyCo1-2yMn1+yO4 spinel oxide solid solutions as 5 V electrode material for Li-ion batteries [J].
Alcántara, R ;
Jaraba, M ;
Lavela, P ;
Tirado, JL .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (01) :A53-A58
[5]   Structural and electrochemical study of new LiNi0.5TixMn1.5-xO4 spinel oxides for 5-V cathode materials [J].
Alcántara, R ;
Jaraba, M ;
Lavela, P ;
Tirado, JL ;
Biensan, P ;
de Guibert, A ;
Jordy, C ;
Peres, JP .
CHEMISTRY OF MATERIALS, 2003, 15 (12) :2376-2382
[6]   Magnetic properties of LiNi0.5Mn1.5O4 spinels prepared by wet chemical methods [J].
Amdouni, N. ;
Zaghib, K. ;
Gendron, F. ;
Mauger, A. ;
Julien, C. M. .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 309 (01) :100-105
[7]  
BRETT CMA, 1993, ELECTROCHEMISTRY PRI, P178
[8]  
Eli Y. E., 1999, J ELECTROCHEM SOC, V146, P908
[9]   Synthesis and electrochemical characteristics of LiCrxNi0.5-xMn1.5O4 spinel as 5 V cathode materials for lithium secondary batteries [J].
Hong, KJ ;
Sun, YK .
JOURNAL OF POWER SOURCES, 2002, 109 (02) :427-430
[10]   Influence of Co substitution for Ni and Mn on the structural and electrochemical characteristics of LiNi0.5Mn1.5O4 [J].
Ito, Atsushi ;
Li, Decheng ;
Lee, Yunsung ;
Kobayakawa, Koichi ;
Sato, Yuichi .
JOURNAL OF POWER SOURCES, 2008, 185 (02) :1429-1433
12