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Issue 10, 2020
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Electrospinning-based construction of porous Mn3O4/CNFs as anodes for high-performance lithium-ion batteries

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Abstract

Transitional metal oxide nanoparticles and carbon composites have attracted tremendous research interest due to their potential as anode materials in next-generation lithium-ion batteries (LIBs). Herein, porous Mn3O4/carbon nanofibers (Mn3O4/CNFs) are designed and synthesized via electrospinning in combination with an in situ growth method followed by subsequent multi-step heat treatments. As an anode for LIBs, Mn3O4/CNFs-2 exhibits good cyclability with high reversible capacity. A reversible capacity of 754 mA h gāˆ’1 over 400 cycles at a current density of 0.1 A gāˆ’1 is achieved. The presence of CNFs can improve the conductivity of the electrode material and relieve the volume expansion of Mn3O4 during the process of Li+ insertion and extraction. Meanwhile, a small amount of N atom doping can enhance the reaction kinetics and Li+ pseudocapacitive behavior while providing reversible capacity and long cycling performance. Quantitative analysis shows that mixed diffusion-controlled and capactive behavior control mechanisms account for the Li+ storage, wherein the pseudocapacitive behavior can contribute to additional capacity.

Graphical abstract: Electrospinning-based construction of porous Mn3O4/CNFs as anodes for high-performance lithium-ion batteries

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Supplementary files

Article information


Submitted
19 Dec 2019
Accepted
03 Feb 2020
First published
04 Feb 2020

New J. Chem., 2020,44, 3888-3895
Article type
Paper

Electrospinning-based construction of porous Mn3O4/CNFs as anodes for high-performance lithium-ion batteries

Y. Li, Y. Song, H. Wang, W. Yu, J. Wang, X. Dong, G. Liu and Q. Ma, New J. Chem., 2020, 44, 3888
DOI: 10.1039/C9NJ06296C

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