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α-MoO3 Nanobelts: A High Performance Cathode Material for Lithium Ion Batteries

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journal contribution
posted on 16.12.2010, 00:00 by Liang Zhou, Lichun Yang, Pei Yuan, Jin Zou, Yuping Wu, Chengzhong Yu
Flexible single crystalline α-MoO3 nanobelts with widths of 200−500 nm, lengths of 5−10 μm, and thicknesses of ∼50 nm have been prepared by a facile hydrothermal treatment method. When fabricated as the cathode for lithium ion batteries, the as-synthesized α-MoO3 nanobelts exhibit excellent rate capability, large capacity, and good cycling stability. An initial discharge capacity of 176 mAh/g can be obtained at 5000 mA/g, retaining a capacity of 115 mAh/g after 50 cycles. The superior high-rate capability can be attributed to the increased conductivity of the electrode during cycling and the nanobelts morphology. The excellent performance makes the α-MoO3 nanobelts a promising cathode material for rechargeable lithium ion batteries in the application of electronic vehicles and hybrid electronic vehicles.