Carbon-Coated Silicon Nanowires on Carbon Fabric as Self-Supported Electrodes for Flexible Lithium-Ion Batteries

Xiaolei Wang, Ge Li, Min Ho Seo, Gregory Lui, Fathy M. Hassan, Kun Feng, Xingcheng Xiao, Zhongwei Chen

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)

Abstract

A novel self-supported electrode with long cycling life and high mass loading was developed based on carbon-coated Si nanowires grown in situ on highly conductive and flexible carbon fabric substrates through a nickel-catalyzed one-pot atmospheric pressure chemical vapor deposition. The high-quality carbon coated Si nanowires resulted in high reversible specific capacity (∼3500 mA h g-1 at 100 mA g-1), while the three-dimensional electrode’s unique architecture leads to a significantly improved robustness and a high degree of electrode stability. An exceptionally long cyclability with a capacity retention of ∼66% over 500 cycles at 1.0 A g-1 was achieved. The controllable high mass loading enables an electrode with extremely high areal capacity of ∼5.0 mA h cm-2. Such a scalable electrode fabrication technology and the high-performance electrodes hold great promise in future practical applications in high energy density lithium-ion batteries.

Original languageEnglish
Pages (from-to)9551-9558
Number of pages8
JournalACS Applied Materials and Interfaces
Volume9
Issue number11
DOIs
Publication statusPublished - Mar 22 2017
Externally publishedYes

Keywords

  • Si nanowires
  • carbon cloth
  • flexible electrodes
  • lithium-ion batteries
  • subeutectic growth

ASJC Scopus subject areas

  • Materials Science(all)

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