期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 11, 页码 1524-1526出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.08.024
关键词
Aqueous rechargeable lithium battery (ARLB); Nanoparticles; Cathode material; LiCoO2; Large capacity; High rate capability
资金
- National Basic Research Program of China (973 Program) [2007CB209702]
- STCSM [09QH1400400]
- Sanyo Chemical Industries Ltd.
Crystalline nanoparticles of LiCoO2 are prepared by a sal-gel method at 550 degrees C and characterized by X-ray diffraction. Their electrochemical behaviors were characterized by cyclic voltammograms, capacity measurement and cycling performance. Results show that the reversible capacity of the nano-LiCoO2 can be up to 143 mAh/g at 1000 mA/g and still be 133 mAh/g at 10,000 mA/g (about 70C) in 0.5 mol/l Li2SO4 aqueous electrolyte. In addition, their cycling behavior is also very satisfactory, no evident capacity fading during the initial 40 cycles. These data present great promise for the application of aqueous rechargeable lithium batteries. (C) 2010 Elsevier B.V. All rights reserved.
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