The Enhanced Lithium-Storage Performance for MnO Nanoparticles Anchored on Electrospun Nitrogen-Doped Carbon Fibers

Nanomaterials
Rui ZhangHaibo Li

Abstract

Manganese monoxide (MnO) is a promising anode material in the lithium-ion battery for its high capacity, low operation potential, and environmental benignity. However, its application is impeded by poor rate capability and rapid capacity fading. In this work, a MnO/carbon hybrid material, in which small-sized MnO nanoparticles are tightly anchored on carbon fibers (denoted as MnO@CFs), was prepared by annealing the electrospun precursor fibers at 650 °C. When applied as the anode material of the Li-ion battery, the small size of MnO shortens the Li-ion diffusion path, and the carbon fibers not only greatly improve the conductivity but also efficiently buffer the MnO structure strain during the charge⁻discharge process, endowing the MnO@CFs electrode with a good rate capability (185 mAh g-1 at 5 A g-1) and cyclic stability (406 mAh g-1 after 500 cycles at 1.0 A g-1).

References

Apr 4, 2013·Chemical Reviews·M V ReddyB V R Chowdari
Jul 12, 2013·Chemistry : a European Journal·Xiaowei LiYitai Qian
Jul 16, 2014·ACS Applied Materials & Interfaces·Shengbin WangShichao Zhang
Feb 12, 2015·Beilstein Journal of Nanotechnology·Anna Maria PappaStergios Logothetidis

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Methods Mentioned

BETA
X-ray
scanning electron microscopy
transmission electron microscopy

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