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Exploration of Humic Acids as the Binder of Silicon-Based Anode for Lithium-Ion Batteries

  • Shuzhen Yang
  • Guihong HanEmail author
  • Yanfang Huang
  • Jiongtian Liu
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Humic acids (HA) are the natural macromolecules with various functional groups. In this paper, HA were explored as the water-soluble binder of silicon-based anode for lithium-ion batteries (LIBs). The results showed that addition of HA can restrain the fading capacity of Si-based anode compared with that with the polyvinylidene fluoride (PVDF) and sodium carboxymethylcellulose (CMC). With the combination of HA and CMC in mass ratio of 2:1, the anode prepared with commercial Si particles displays the better buffered effectiveness. The reversible specific capacity can still be maintained as 354.4 mAh g−1 after 40 times cycle at a current density of 100 mA g−1. In addition, electrochemical impedance spectroscopy (EIS) was also investigated to analyze the influence of HA on electrode. HA can be the potential binder component for improving the electrochemical performance of Si-based anode.

Keywords

Humic acids Silicon-based anode Binder Lithium-ion batteries 

Notes

Acknowledgements

The authors acknowledge the financial support from the National Science Fund of China (No. 51674225 and No. 51774252), the Innovative Talents Foundation in Universities in Henan Province (No. 18HASTIT011), the Educational Commission of Henan Province of China (No. 17A450001, 18A450001), and the China Postdoctoral Science Foundation (No. 2017M622375).

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Shuzhen Yang
    • 1
  • Guihong Han
    • 1
    Email author
  • Yanfang Huang
    • 1
  • Jiongtian Liu
    • 1
  1. 1.School of Chemical Engineering and EnergyZhengzhou UniversityZhengzhouPeople’s Republic of China

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