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Hierarchical flower-like carbon nanosheet assembly with embedded hollow NiCo2O4 nanoparticles for high- performance lithium ion batteries

Research paper by Ling Fang, Huajun Qiu, Pan Luo, Wenxiang Li, Huijuan Zhang, Yu Wang

Indexed on: 23 Mar '17Published on: 17 Jan '17Published in: Applied Surface Science



Abstract

The fabrication of closely bounded metal oxides/carbon hybrid nano-structures is significant for its use in energy-related areas especially lithium ion batteries (LIBs). In this research, a flower-like carbon sphere with hollow NiCo2O4 nanoparticles encapsulated inside the carbon thin nanopetal is fabricated by using a mixed basic carbonate nickel and cobalt sphere as the precursor and templates followed by the outer carbon membrane covering and two-step calcination process. When tested as anode material for LIBs, this flower-like carbon-based hybrid sphere demonstrates a significantly enhanced reversible capacity and cycling stability at various current densities.

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