Hydrogen reduced sodium vanadate nanowire arrays as electrode material of lithium-ion battery

Vanadates and vanadium oxides are potential lithiumion electrode materials because of their easy preparation and high capacity properties. This paper reports the electrochemical lithium-storage performance of VO 2 and NaV 2 O 5 composite nanowire arrays. Firstly, Na 5 V 12 O 32 nanowire arrays are f...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Central South University 2019-06, Vol.26 (6), p.1540-1549
Main Authors: Xu, Xue-liu, Li, Guang-zhong, Fu, Ze-wei, Hu, Jun-tao, Luo, Zhi-ping, Hua, Kang, Lu, Xue-qin, Fang, Dong, Bao, Rui, Yi, Jian-hong
Format: Article
Language:English
Subjects:
Arrays
Chemical composition
Chemical reduction
Crystal structure
Electrode materials
Electrodes
Engineering
Hydrothermal crystal growth
Lithium
Lithium-ion batteries
Metallic Materials
Morphology
Nanowires
Organic chemistry
Rechargeable batteries
Sodium compounds
Vanadates
Vanadium oxides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Vanadates and vanadium oxides are potential lithiumion electrode materials because of their easy preparation and high capacity properties. This paper reports the electrochemical lithium-storage performance of VO 2 and NaV 2 O 5 composite nanowire arrays. Firstly, Na 5 V 12 O 32 nanowire arrays are fabricated by a hydrothermal method, and then VO 2 and NaV 2 O 5 composite nanowire arrays are prepared by a reduction reaction of Na 5 V 12 O 32 nanowire arrays in hydrogen atmosphere. Crystal structure, chemical composition and morphology of the prepared samples are characterized in detail. The obtained composite is used as an electrode of a lithium-ion battery, which exhibits high reversible capacity and good cycle stability. The composite obtained at 500 °C presents a specific discharge capacity up to 345.1 mA × h/g after 50 cycles at a current density of 30 mA/g.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-019-4110-y