Facile synthesized nanorod structured vanadium pentoxide for high-rate lithium batteries

Journal Article · Fri Apr 23 04:00:00 EDT 2010 · Journal of Materials Chemistry, 20(41):9193-9199

DOI:https://doi.org/10.1039/C0JM01306D· OSTI ID:1000602

Pan, Anqiang; Zhang, Jiguang; Nie, Zimin; Cao, Guozhong H; Arey, Bruce W; Li, Guosheng; Liang, Shu-quan; Liu, Jun

Nano-structured vanadium oxide (V2O5) is fabricated via facile thermal-decomposition of a vanadium precursor and vanadyl oxalate produced by reacting micro-sized V2O5 with oxalic acid. The V2O5 nanorods produced by this method exhibit much better electrochemical performance than commercial micro-sized V2O5. The optimized-nanorod electrodes with a high density of (001) planar defects 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 nanostructured V2O5 is a good cathode for high-rate, lithium-ion battery applications.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1000602
• Report Number(s): PNNL-SA-72345; 40125; 30406
• Journal Information: Journal of Materials Chemistry, 20(41):9193-9199, Journal Name: Journal of Materials Chemistry, 20(41):9193-9199 Journal Issue: 41 Vol. 20; ISSN JMACEP; ISSN 0959-9428
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
77 NANOSCIENCE AND NANOTECHNOLOGY
ELECTROCHEMISTRY
ELECTRODES
Environmental Molecular Sciences Laboratory
FABRICATION
LITHIUM
METAL-NONMETAL BATTERIES
NANOSTRUCTURES
PERFORMANCE
PYROLYSIS
STABILITY
VANADIUM OXIDES