4.7 Article

Three-dimensional CuO microflowers as anode materials for Li-ion batteries

期刊

CERAMICS INTERNATIONAL
卷 41, 期 6, 页码 8257-8260

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.03.010

关键词

Li-ion batteries; CuO microflowers; Electrochemical performance; Anode material

资金

  1. Chongqing University of Arts and Sciences [R2013CJ06, Y2013CJ27, M2014 ME06]
  2. postgraduate innovation foundation of Chongqing University of Technology [YCX2014213]

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It is well-known that transition metal oxides are promising anode materials for Li-ion batteries because of their high theoretical capacity and good capacity retention properties. Here we have synthesized copper oxide microflowers (CuO-MFs) by solid-state thermal conversion of Cu (OH)(2) precursors. The crystal structure, surface morphology, and electrochemical performance of the products were deeply investigated by X-ray diffraction, scanning electron microscopy, and galvanostatic charge/discharge, respectively. The results suggest that CuO-MFs as novel anode materials have exhibited excellent electrochemical performance in Li-ion batteries. The initial discharge capacity is 785 mA h g(-1), and the reversible capacity is still maintained at 350 mA h g(-1) after 50 cycles. Thus, three-dimensional CuO-MFs provide a new insight into the development of anode materials for next-generation high-performance Li-ion batteries. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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