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Research Article

Sandwich structured graphene-wrapped FeS-graphene nanoribbons with improved cycling stability for lithium ion batteries

Lei Li1, Caitian Gao1,2, Anton Kovalchuk1, Zhiwei Peng1, Gedeng Ruan1, Yang Yang1,3,†, Huilong Fei1, Qifeng Zhong1,4, Yilun Li1, James M. Tour1,3,5( )
Department of ChemistryRice University6100 Main StreetHoustonTexas77005USA
School of Physical Science and TechnologyLanzhou UniversityLanzhou730000China
NanoCarbon CenterRice University6100 Main StreetHoustonTexas77005USA
State Key Laboratory of BioelectronicsSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China
Department of Materials Science and NanoEngineeringRice University6100 Main StreetHoustonTexas77005USA

†Present address: Department of Materials and Engineering, University of Central Florida, 12424 Research Parkway Suite 423, Orlando, Florida 32826, USA

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Abstract

Sandwich structured graphene-wrapped FeS-graphene nanoribbons (G@FeS-GNRs) were developed. In this composite, FeS nanoparticles were sandwiched between graphene and graphene nanoribbons. When used as anodes in lithium ion batteries (LIBs), the G@FeS-GNR composite demonstrated an outstanding electrochemical performance. This composite showed high reversible capacity, good rate performance, and enhanced cycling stability owing to the synergy between the electrically conductive graphene, graphene nanoribbons, and FeS. The design concept developed here opens up a new avenue for constructing anodes with improved electrochemical stability for LIBs.

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Keywords

lithium ion batteryiron sulfidegraphene nanoribbonsgrapheneenergy storage

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Nano Research
Volume 9 Issue 10,
October 2016
Pages 2904-2911
DOI: 10.1007/s12274-016-1175-x

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Li L, Gao C, Kovalchuk A, et al. Sandwich structured graphene-wrapped FeS-graphene nanoribbons with improved cycling stability for lithium ion batteries. Nano Research, 2016, 9(10): 2904-2911. https://doi.org/10.1007/s12274-016-1175-x

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Received: 18 June 2015
Revised: 07 June 2016
Accepted: 10 June 2016
Published: 14 July 2016
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016