Journal
MATERIALS RESEARCH BULLETIN
Volume 70, Issue -, Pages 200-203Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2015.04.038
Keywords
Oxides; Chemical synthesis; Nanostructures; Energy storage; Electrochemical properties
Categories
Funding
- Construct Program of the Key Discipline in Hunan province (Applied Chemistry)
- Hunan Provincial Natural Science Foundation [14JJ2123]
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Fabrication of advanced anode materials is indispensable for construction of high-performance lithium ion batteries. In this work, nickel oxide (NiO) nanospheres are fabricated by a facial one-step spray drying method. The as-prepared NiO nanospheres show diameters ranging from 100 to 600 nm and are composed of nanoparticles of 30-50 nm. As an anode for lithium ion batteries, the electrochemical properties of the NiO nanospheres are investigated by cyclic voltammetry (CV) and galvanostatic charge/discharge tests. The specific reversible capacity of NiO nanospheres is 656 mA h g(-1) at 0.1 C, and 476 mA h g(-1) at 1 C. The improvement of electrochemical properties is attributed to nanosphere structure with large surface area and short ion/electron transfer path. (C) 2015 Elsevier Ltd. All rights reserved.
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