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Electrochemical Performance and ex situ Analysis of ZnMn2O4 Nanowires as Anode Materials for Lithium Rechargeable Batteries

Cited 140 time in Web of Science Cited 138 time in Scopus
Authors
Kim, Sung-Wook; Lee, Hyun-Wook; Muralidharan, Pandurangan; Seo, Dong-Hwa; Yoon, Won-Sub; Kim, Do Kyung; Kang, Kisuk
Issue Date
2011-05
Citation
Nano Research, Vol.4 No.5, pp.505-510
Keywords
Energy storagelithium rechargeable batteryanodeZnMn2O4nanowire
Abstract
One-dimensional ZnMn2O4 nanowires have been prepared and investigated as anode materials in Li rechargeable batteries. The highly crystalline ZnMn2O4 nanowires about 15 nm in width and 500 nm in length showed a high specific capacity of about 650 mAh.g(-1) at a current rate of 100 mA.g(-1) after 40 cycles. They also exhibited high power capability at elevated current rates, i.e., 450 and 350 mAh.g(-1) at current rates of 500 and 1000 mA.g(-1), respectively. Formation of Mn3O4 and ZnO phases was identified by ex situ X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies after the initial discharge-charge cycle, which indicates that the ZnMn2O4 phase was converted to a nanocomposite of Mn3O4 and ZnO phases immediately after the electrochemical conversion reaction.
ISSN
1998-0124
URI
http://hdl.handle.net/10371/165167
DOI
https://doi.org/10.1007/s12274-011-0106-0
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
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