High rate performances of hydrogen titanate nanowires electrodes

• Published in: Electrochemistry communications Vol. 10; no. 8; pp. 1164 - 1167
• Main Authors: Wei, Mingdeng, Wei, Kewei, Ichihara, M., Zhou, Haoshen
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01-08-2008; Amsterdam Elsevier Science; New York, NY
• Subjects: Applied sciences; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical behavior; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Hydrogen titanate; Intercalation; Lithium; Nanowires; Lithium; Hydrogen titanate; Nanowires; Intercalation; Electrochemical behavior; Scanning electron microscopy; Insertion; Secondary cell; Electrode material; X ray diffraction; Discharge charge cycle; Electrochemical characteristic; Surface structure; Lithium battery; Electrodes; Hydrothermal synthesis; Morphology; Hydrogen Titanates; Performance; Hydrogen titanate,Nanowires,Intercalation,Electrochemical behavior,Lithium; Electrical characteristic
• ISSN: 1388-2481; 1873-1902
• DOI: 10.1016/j.elecom.2008.05.014

In this study, H
2Ti
3O
7 nanowires were successfully synthesized via a hydrothermal process and post-treatments. The diameter of the nanowires is found to be about 30
nm and the length up to several micrometers. A lithium battery using H
2Ti
3O
7 nanowires as the active material of the positive electrode exhibits a discharge capacity of 100
mA
hg
−1 and still keeps stable after 200 cycles at a current density as high as 40
Ag
−1, demonstrating excellent high rate performance.