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Cobalt nanoparticles shielded in N-doped carbon nanotubes for high areal capacity Li–S batteries

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Abstract

N-Doped carbon nanotubes with embedded cobalt nanoparticles (Co-NCNTs) were prepared by thermally annealing a mixture of ZIF-67 and dicyandiamide precursors. Because of the dual chemical affinity of Co and N to S species, Li–S batteries with a Co-NCNT modified separator revealed enhanced redox kinetics of lithium polysulfide conversion and achieved a high areal capacity of 3.73 mA h cm−2 after 100 cycles at 0.1C at a sulfur loading of 4.3 mg cm−2.

Graphical abstract: Cobalt nanoparticles shielded in N-doped carbon nanotubes for high areal capacity Li–S batteries

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Article information


Submitted
19 Oct 2019
Accepted
23 Jan 2020
First published
24 Jan 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Cobalt nanoparticles shielded in N-doped carbon nanotubes for high areal capacity Li–S batteries

L. Wei, W. Li, T. Zhao, N. Zhang, L. Li, F. Wu and R. Chen, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC08218B

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