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Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution
被引:12
|作者:
Stojkovic, Ivana
[1
]
Cvjeticanin, Nikola
[1
]
Mitric, Miodrag
[2
]
Mentus, Slavko
[1
]
机构:
[1] Univ Belgrade, Fac Phys Chem, Belgrade, Serbia
[2] Vinca Inst Nucl Sci, Belgrade 11158, Serbia
关键词:
Aqueous Li-ion battery;
Galvanostatic cycling;
Li1.2V3O8;
Li-ion insertion;
Soft-chemistry synthesis;
CATHODE MATERIAL;
LIV3O8;
PERFORMANCE;
BATTERY;
IMPROVEMENT;
BEHAVIOR;
LIMN2O4;
D O I:
10.1016/j.electacta.2011.04.129
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
The amorphous hydrated precursor of Li1.2V3O8 was synthesized by soft chemistry method, and then heat-treated in air at several temperatures within the range 200-400 degrees C. The heat-treatment changed its morphological, structural and charging/discharging performance. The product obtained upon the treatment at 300 degrees C. consisting of uniform, rod-shaped particles, 100-150 nm in diameter and 300-800 nm in length, displayed the best electrochemical performance in aqueous LiNO3 solution. Its initial discharge capacity amounted to 136.8 mAh g(-1) at a rate of C/5, which upon 50 charging/discharging cycles decreased for only 12%. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:6469 / 6473
页数:5
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