Crossref journal-article
Wiley
ChemSusChem (311)
Abstract

AbstractComposite materials of porous pyrolyzed polyacrylonitrile–sulfur@graphene nanosheet (pPAN–S@GNS) are fabricated through a bottom‐up strategy. Microspherical particles are formed by spray drying of a mixed aqueous colloid of PAN nanoparticles and graphene nanosheets, followed by a simple heat treatment with elemental sulfur. The pPAN–S primary nanoparticles are wrapped homogeneously and loosely within a three‐dimensional network of graphene nanosheets (GNS). The hierarchical pPAN–S@GNS composite shows a high reversible capacity of 1449.3 mAh g−1sulfur or 681.2 mAh g−1composite in the second cycle; after 300 cycles at a 0.2 C charge/discharge rate the capacity retention is 88.8 % of its initial reversible value. Additionally, the coulombic efficiency (CE) during cycling is near 100 %, apart from in the first cycle, in which CE is 81.1 %. A remarkable capacity of near 700 mAh g−1sulfur is obtained, even at a high discharge rate of 10 C. The superior performance of pPAN–S@GNS is ascribed to the spherical secondary GNS structure that creates an electronically conductive 3D framework and also reinforces structural stability.

Bibliography

Wang, J., Yin, L., Jia, H., Yu, H., He, Y., Yang, J., & Monroe, C. W. (2013). Hierarchical Sulfur‐Based Cathode Materials with Long Cycle Life for Rechargeable Lithium Batteries. ChemSusChem, 7(2), 563–569. Portico.

Dates
Type When
Created 11 years, 10 months ago (Oct. 23, 2013, 12:52 p.m.)
Deposited 1 year, 10 months ago (Oct. 16, 2023, 1:46 a.m.)
Indexed 2 weeks, 5 days ago (Aug. 5, 2025, 8:34 a.m.)
Issued 11 years, 10 months ago (Oct. 23, 2013)
Published 11 years, 10 months ago (Oct. 23, 2013)
Published Online 11 years, 10 months ago (Oct. 23, 2013)
Published Print 11 years, 6 months ago (Feb. 1, 2014)
Funders 0

None

@article{Wang_2013, title={Hierarchical Sulfur‐Based Cathode Materials with Long Cycle Life for Rechargeable Lithium Batteries}, volume={7}, ISSN={1864-564X}, url={http://dx.doi.org/10.1002/cssc.201300742}, DOI={10.1002/cssc.201300742}, number={2}, journal={ChemSusChem}, publisher={Wiley}, author={Wang, Jiulin and Yin, Lichao and Jia, Hao and Yu, Haitao and He, Yushi and Yang, Jun and Monroe, Charles W.}, year={2013}, month=oct, pages={563–569} }