A renewable natural cotton derived and nitrogen/sulfur co-doped carbon as a high-performance sodium ion battery anode

Chenghao Yang, Jiawen Xiong, Xing Ou, Chun Fu Wu, Xunhui Xiong, Jeng Han Wang, Kevin Huang, Meilin Liu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Here we report a new N/S co-doped carbon nanosheets derived from a renewable natural cotton source and its performance as an anode for SIBs. The electrochemical testing shows that the new carbon anode outperforms other major carbon-based anodes in sodiation capacity (482.1 mAh g−1 at 0.1 A g−1), rate performance (375.6, 357.8, 340.5, 324.1 mAh g−1 at 1.0, 2.0, 5.0 and 10.0 A g−1, respectively) and cycling stability (351.1 mAh g−1 at 2.0 A g−1 for 600 cycles). The defects, enlarged d-spacing, reduced Na+ diffusion barrier and increased electronic conductivity of the fabricated N/S co-doped carbon nanosheets are responsible for the excellent Na+ storage property, while the pseudocapacitive behavior of Na+ storage contributes to their high rate performance. This work demonstrates a low-cost path forward to fabricate high-performance carbonaceous anode materials for SIBs.

Original languageEnglish
Pages (from-to)37-44
Number of pages8
JournalMaterials Today Energy
Volume8
DOIs
Publication statusPublished - 2018 Jun

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Keywords

  • Anode materials
  • Carbonaceous materials
  • Cotton
  • Electrochemical performance
  • Sodium ion batteries

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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