Mo6+-doped Li[Ni(0.5+x)Mn(1.5-2x)Mox]O4 spinel materials for 5 V lithium secondary batteries prepared by ultrasonic spray pyrolysis

被引:31
作者
Park, SH [1 ]
Oh, SW
Myung, ST
Sun, YK
机构
[1] Hanyang Univ, Dept Chem Engn, Ctr Informat & Commun Mat, Seoul 133791, South Korea
[2] VK Corp, Pyongtaek 450090, Kyonggi Do, South Korea
关键词
D O I
10.1149/1.1808114
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Molybdenum-doped spinel Li[Ni(0.5+x)Mn(1.5-2x)Mox]O-4 (0 <= x <= 0.1) materials were synthesized by an ultrasonic spray pyrolysis method. Well-ordered [111] direction (octahedron shape) morphology powders were obtained at molybdenum-doped spinel. The structural, electrochemical, morphological properties, and thermal stability of the powders were characterized by X-ray diffraction, galvanostatic charge/discharge testing, scanning electron microscopy, and differential scanning calorimetry, respectively. The molybdenum doping spinel has a high discharge capacity, excellent capacity retention, rate capability, and thermal stability. (C) 2004 The Electrochemical Society.
引用
收藏
页码:A451 / A454
页数:4
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