Flower-like Nickel Oxide Nanocomposites Anode Materials for Excellent Performance Lithium-ion Batteries. (10th January 2015)

• Record Type: Journal Article
• Authors: Yue, G.H.; Zhao, Y.C.; Wang, C.G.; Zhang, X.X.; Zhang, X.Q.; Xie, Q.S.
• Is Part Of: Electrochimica acta. Volume 152(2015)
• Page Start: 315
• Page End: 322
• Publication Date: 2015-01-10
• Subjects: nickel oxide -- nanocomposite -- three-dimensional flower-like structure -- anode material; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2014.11.177
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: A three-dimensional flower-like structure NiO and NiO-based nanocomposites (NiO@C and NiO/Ni) are synthesized with an ingenious fabrication technique followed by calcinating process in N2 atmosphere. The mesocrystal structure and surface morphology are tested with the X-ray diffraction, scanning electron microscope and transmission electron microscope methods. As the anode materials for lithium-ion batteries, the as-prepared three-dimensional flower-like NiO/Ni and NiO@C nanocomposites maintain reversible discharge capacities of 846 mAh g −1 and 739 mAh g −1, respectively, after repeated cycling at a current density of 1 A g −1 over 100 cycles. The rate performance of the NiO/Ni nanocomposites is better than that of the NiO@C composites, and the bare NiO should be one of the worst. These results indicate that the transition metal oxide materials can be promising for anode materials in lithium-ion batteries after being composited with good conductor materials.