Sub-micrometric LiCr0.2Ni0.4Mn1.4O4 spinel as 5 V-cathode material exhibiting huge rate capability at 25 and 55 °C

被引：59
作者：
Aklalouch, Mohamed [1 ,2 ]
Manuel Amarilla, Jose [1 ]
Rojas, Rosa M. [1 ]
Saadoune, Ismael [2 ]
Maria Rojo, Jose [1 ]
机构：
[1] CSIC, Inst Ciencia Mat, Madrid 28049, Spain
[2] UCAM, Fac Sci & Tech, ECME, Marrakech, Morocco
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 04期
关键词：
High-power lithium battery; 5 V-Cathode material; Rate capability; LiMn2O4-type cathodes; LiNi0.5Mn1.5O4; spinel; Combustion method; LI-ION BATTERIES; LITHIUM BATTERIES; ELECTROCHEMICAL PROPERTIES; LINI0.5MN1.5O4; PERFORMANCE; ELECTRODE; SYSTEM;
D O I：
10.1016/j.elecom.2010.01.040
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Single phase LiCr0.2Ni0.4Mn1.4O4 spinet has been synthesized by a simple sucrose assisted combustion method that yields highly crystalline homogeneous sub-micrometric samples (650 nm). The LiCr0.2Ni0.4Mn1.4O4, with capacity retention of 92% at 60 C discharge rate, shows the highest rate capability among LiNi0.5Mn1.5O4-type cathodes. It delivers very high-power (34.8 kW kg(-1) at 60 C). Studies developed at 55 degrees C demonstrate that LiCr0.2Ni0.4Mn1.4O4 retains huge rate capability and large cycleability at high temperature. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：548 / 552
页数：5
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