ELECTROSPUN LIMN2O4 NANOFIBERS AS CATHODE FOR LITHIUM ION BATTERIES

被引：0
|
作者：
Zhao, Xuan [1 ,2 ]
Reddy, M. V. [3 ]
Ramakrishna, S. [2 ]
Mahishalkar, S. [1 ]
Chowdari, B. V. R. [3 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore
[2] Natl Univ Singapore, NUSNNI, Singapore 117576, Singapore
[3] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
来源：
Solid State Ionics: Ionics for Sustainable World | 2013年
关键词：
LiMn2O4: Electrospinning; Cathode; electrochemical properties; POSITIVE-ELECTRODE; SPINEL; TEMPERATURE; PERFORMANCE;
D O I：
暂无
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：
LiMn2O4 compound was prepared by electrospinning method at a low synthesis temperature of 600 degrees C for 3 hours. X-ray diffraction (XRD) analysis proved the electrospun LiMn2O4 possesses a spinel structure. Scanning Electron Microscopy (SEM) images showed the LiMn2O4 short fibers like morphology, with a length of 3-5 mu m and a diameter of 150-350 nm. The electrochemical properties of LiMn2O4 nanofibers were reported for the first time in this study. The Cyclic Voltammograms (CV) showed the characteristic two-step redox peaks at 3.9/4.1 and 4.1/4.2 V vs. Li, which are typical peaks of LiMn2O4. Galvanostatic cycling studies in the range 3.5 to 4.3 V vs. Li showed that the LiMn2O4 nanofibers can deliver a discharge capacity of 94 mAh g(-1) at 1C rate (1C= 120 mA g(-1)).
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页码：3 / 9
页数：7
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