Issue 41, 2015

Facile synthesis of high performance hard carbon anode materials for sodium ion batteries

Abstract

A highly reversible, resource-abundant and low-cost anode is indispensable to the future success of sodium ion batteries (SIBs) in large-scale energy storage application. In this work, we report the facile synthesis of a biomass-derived hard carbon for SIBs by one-step pyrolysis of shaddock peel under an inert atmosphere without activation or any further treatments. The pyrolytic carbon shows very high reversible sodium storage capacities up to 430.5 mA h g−1 at a current density of 30 mA g−1 and superior cycling stability with only 2.5% capacity loss over 200 charge–discharge cycles. The high capacity and excellent cycle performance, combined with the facile synthesis procedure make it a promising anode material for practical SIBs. The good Na-ion storage property of the shaddock peel-derived pyrolytic carbon is attributed to its unique honeycomb-like morphology with a shortened distance for Na-ion diffusion, and the large interlayer distance which is available for sodium insertion/extraction.

Graphical abstract: Facile synthesis of high performance hard carbon anode materials for sodium ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
08 Jul 2015
Accepted
26 Aug 2015
First published
28 Aug 2015

J. Mater. Chem. A, 2015,3, 20560-20566

Author version available

Facile synthesis of high performance hard carbon anode materials for sodium ion batteries

N. Sun, H. Liu and B. Xu, J. Mater. Chem. A, 2015, 3, 20560 DOI: 10.1039/C5TA05118E

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