期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 13, 期 11, 页码 1159-1162出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2011.09.008
关键词
Aqueous rechargeable lithium battery (ARLB); Nanorods; Cathode material; LiMn2O4; Rate capability
资金
- National Basic Research Program of China (973 Program) [2007CB209702]
- MOST [2010DFA61770]
- NSFC [21073046]
- STCSM [09QH1400400]
- Alexander von Humboldt Foundation
LiMn2O4 nanorods were prepared by a facile hydrothermal method in combination with traditional solid-state reactions and characterized by X-ray diffraction analysis. Their electrochemical behavior was tested by cyclic voltammetry and repeated charge/discharge cycling. Results show that the reversible intercalation/deintercalation of Li-ions into/from LiMn2O4 cathode can yield up to 110 mAh/g at 4.5 C, and still retains 88% at the very large charge rate of 90 C with well-defined charge and discharge plateaus. It presents very high power density, up to 14.5 kW/kg, and very excellent cycling behavior, 94% capacity retention after 1200 cycles. It is thus a competitor for LiFePO4. (C) 2011 Elsevier B.V. All rights reserved.
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