Journal
CERAMICS INTERNATIONAL
Volume 42, Issue 7, Pages 9319-9322Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.01.207
Keywords
Lithium-ion battery; Cathode material; LiMnO2; Nanorods; Solid-state synthesis
Categories
Funding
- National Natural Science Foundation of China [21071026]
- University of Electronic Science and Technology Outstanding Talent Introduction Project [08JC00303]
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A simple solid-state process was developed to prepare the orthorhombic LiMnO2 nanorods by using Mn2O3 nanorods as a template, the latter was prepared via a thermal decomposition process. The obtained product showed good rod-shaped morphology and could be indexed to the orthorhombic LiMnO2 with a space group of Pmnm. Electrochemical tests showed that the LiMnO2 nanorods exhibited a discharge capacity of 183.2 mA h g(-1) with high coulombic efficiency at 0.1 C between 2.0 and 4.3 V. After 35 cycles, the discharge capacity still reached up to 175.6 mA h g(-1), which is a high capacity retention. Furthermore, the LiMnO2 nanorods presented excellent rate capability and small charge transfer resistance. Such high performance might be ascribed to the one-dimensional nanostructures with good crystallinity, which could effectively facilitate the charge and electron transport and enhance the electrode-filled ratio. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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