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Type: Journal article
Title: Graphene-based nitrogen-doped carbon sandwich nanosheets: a new capacitive process controlled anode material for high-performance sodium-ion batteries
Author: Li, D.
Zhang, L.
Chen, H.
Wang, J.
Ding, L.
Wang, S.
Ashman, P.
Wang, H.
Citation: Journal of Materials Chemistry A, 2016; 4(22):8630-8635
Publisher: Royal Society of Chemistry
Issue Date: 2016
ISSN: 2050-7488
Statement of
Dongdong Li, Lei Zhang, Hongbin Chen, Jun Wang, Liang-Xin Ding, Suqing Wang, Peter J. Ashman and Haihui Wang
Abstract: Anode materials with capacitive charge storage (CCS) are highly desirable for the development of high-performance sodium-ion batteries (SIBs), because the capacitive process usually shows kinetically high ion diffusion and superior structural stability. Here, we report a new CCS anode material of graphene-based nitrogen-doped carbon sandwich nanosheets (G-NCs). The as-prepared G-NCs show a high capacitive contribution during the discharge/charge processes. As expected, the G-NCs exhibit excellent rate performance with a reversible capacity of 110 mA h g⁻¹, even at a current as high as 10 000 mA g⁻¹, and outstanding cycle stability (a retention of 154 mA h g⁻¹ after 10 000 cycles at 5000 mA g⁻¹). This represents the best cycle stability among all reported carbon anode materials for SIBs, thereby showing great potential as a commercial anode material for SIBs.
Rights: This journal is © The Royal Society of Chemistry 2016
RMID: 0030049799
DOI: 10.1039/c6ta02139e
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Appears in Collections:Chemical Engineering publications

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