Research Article

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2011, 4(5): 505–510

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https://doi.org/10.1007/s12274-011-0106-0

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

Sung-Wook Kim1,§, Hyun-Wook Lee2,§, Pandurangan Muralidharan2,§, Dong-Hwa Seo2, Won-Sub Yoon3, Do Kyung Kim2 (), and Kisuk Kang2,4 ()

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1 Research Institute of Advanced Materials, Seoul National University, 599 Kwanak-ro, Kwanak-gu, Seoul 151-742, Republic of Korea
2 Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea
3 School of Advanced Materials Engineering, Kookmin University, 861-6 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Republic of Korea
4 Department of Materials Science and Engineering, Seoul National University, 599 Kwanak-ro, Kwanak-gu, Seoul 151-742, Republic of Korea
§ These authors contributed equally to this work

Keywords: Energy storage, lithium rechargeable battery, anode, ZnMn2O4, nanowire
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  • Abstract
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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.
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Electrochemical Performance and ex situ Analysis of ZnMn2O4 Nanowires as Anode Materials for Lithium Rechargeable Batteries. Nano Res. 2011, 4(5): 505–510 https://doi.org/10.1007/s12274-011-0106-0

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