Li2FeSiO4/C with good performance as cathode material for Li-ion battery

被引:14
|
作者
Qu, Long [1 ]
Fang, Shaohua [1 ]
Zhang, Zhengxi [1 ]
Yang, Li [1 ,2 ]
Hirano, Shin-ichi [2 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Hirano Inst Mat Innovat, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
Lithium-ion battery; Cathode material; Li2FeSiO4; Nanocomposites; Sol-gel preparation; ELECTROCHEMICAL PERFORMANCE; LI2MSIO4; M; NANOCOMPOSITE; MN; FE;
D O I
10.1016/j.matlet.2013.06.072
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Li2FeSiO4/C has been prepared by the Ultrasonic-assisted sol-gel method with about 50 nm Fe2O3 particle as Fe source. The structures, morphologies, and carbon content of the product are characterized. L(i)2FeSiO(4)/C owns pure phase and the particle size of Li2FeSiO4 is close to Fe2O3 nanoparticle. As the cathode material of Li-ion battery, the product shows stable cycle performance at the wide range of rate and good rate performance. The discharge capacities of the 100th cycle are 140 mAh g(-1), 125 mAh g(-1), 120 mAh g(-1), 110 mAh g(-1), and 90 mAh g(-1) at 0.1C, 0.5C, 1C, 2C, and 5C rate, respectively. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 4
页数:4
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