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Electrospun Nb-doped LiNi0.4Co0.2Mn0.4O2 nanobelts for lithium-ion battery


Nb-doped LiNi0.4Co0.2Mn0.4O2 (Nb-NCM) nanobelts have been successfully fabricated for the first time through a facile electrospinning method by the delicate control of PAN pyrolysis and Nb-NCM formation (including nucleation and subsequent growth processes). According to the experimental evidences from temperature-dependent characterization and isolation of the intermediates, the formation of nanobelts undergoes a morphology evolution from naofibres to nanotubes, and finally to the nanobelts composed of subunit nanoparticles. When used as cathode for lithium-ion battery, the as-electrospun Nb-NCM nanobelts exhibit superior electrochemical performances, which could be attributed to their unique features, such as the 1D nanostructure, well-crystallized nature and Nb-doping. These features can improve the ion conductivity of Nb-NCM nanobelts and stable the electrode/electrolyte interface. Therefore, the 1D Nb-NCM nanobelts developed in this study not only provide an excellent model to investigate the fabrication of multi-element oxides using electrospinning method, but also open up a facile route for designing 1D layered cathodes with complex component for high performance lithium-ion batteries.

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Publication details

The article was received on 22 Dec 2017, accepted on 03 Mar 2018 and first published on 05 Mar 2018

Article type: Research Article
DOI: 10.1039/C7QI00811B
Citation: Inorg. Chem. Front., 2018, Accepted Manuscript
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    Electrospun Nb-doped LiNi0.4Co0.2Mn0.4O2 nanobelts for lithium-ion battery

    C. Lv, Y. Peng, J. Yang, X. Duan, J. Ma and T. Wang, Inorg. Chem. Front., 2018, Accepted Manuscript , DOI: 10.1039/C7QI00811B

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