Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 20, Issue 41, Pages 9193-9199Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm01306d
Keywords
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Funding
- National Nature Science Foundation of China [50774097]
- Creative Research Group of the National Natural Science Foundation of China [50721003]
- Pacific Northwest National Laboratory (PNNL)
- DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [KC020105-FWP12152]
- DOE [DE-AC05-76RL01830]
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Nano-structured vanadium oxide (V(2)O(5)) is fabricated via a facile thermal-decomposition of vanadium precursor, vanadyl oxalate, which is produced by reacting micro-sized V(2)O(5) with oxalic acid. The V(2)O(5) nanoparticles produced by this method exhibit much better electrochemical performance than commercial micro-sized V(2)O(5). The optimized-nanorod electrodes give the best specific discharge capacities of 270 mAh g(-1) at C/2 (147 mA g(-1)) coupled with good cycle stability with only 0.32% fading per cycle. Even at a high rate of 4C (1176 mA g(-1)), the nanorod electrode still delivers 198 mAh g(-1). These results suggest that the well-separated V(2)O(5) nanorod is a good cathode material for high-rate lithium battery applications.
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