In Situ Formed Weave Cage-Like Nanostructure Wrapped Mesoporous Micron Silicon Anode for Enhanced Stable Lithium-Ion Battery

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Chenhui Fang
  • Jiaxing Liu
  • Xiaofeng Zhang
  • Wen Luo
  • Guoqing Zhang
  • And 4 others
  • Xinxi Li
  • Zhongyun Liu
  • Pengfei Yin
  • Wei Feng

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number29726–29736
Journal / PublicationACS Applied Materials and Interfaces
Volume13
Issue number25
Online published17 Jun 2021
Publication statusPublished - 30 Jun 2021

Abstract

The low-cost and high-capacity micron silicon is identified as the suitable anode material for high-performance lithium-ion batteries (LIBs). However, the particle fracture and severe capacity fading during electrochemical cycling greatly impede the practical application of LIBs. Herein, we first proposed an in situ reduction and template assembly strategy to attain a weave cage-like carbon nanostructure, composed of short carbon nanotubes and small graphene flakes, as a flexible nanotemplate that closely wrapped micron-sized mesoporous silicon (PSi) to form a robust composite construction. The in situ formed weave cage-like carbon nanostructure can remarkably improve the electrochemical property and structural stability of micron-sized PSi during deep galvanostatic cycling and high electric current density owing to multiple attractive advantages. As a result, the rechargeable LIB applying this anode material exhibits improved initial Coulombic efficiency (ICE), excellent rate performance, and cyclic stability in the existing micron-sized PSi/nanocarbon system. Moreover, this anode reached an approximation of 100% ICE after only three cycles and maintains this level in subsequent cycles. This design of flexible nanotemplated platform wrapped micron-sized PSi anode provides a steerable nanoengineering strategy toward conquering the challenge of long-term reliable LIB application.

Research Area(s)

  • flexible nanotemplate, in situ reduction, lithium-ion battery, micron-sized mesoporous silicon, nanoengineering, template assembly strategy

Citation Format(s)

In Situ Formed Weave Cage-Like Nanostructure Wrapped Mesoporous Micron Silicon Anode for Enhanced Stable Lithium-Ion Battery. / Fang, Chenhui; Liu, Jiaxing; Zhang, Xiaofeng; Luo, Wen; Zhang, Guoqing; Li, Xinxi; Liu, Zhongyun; Yin, Pengfei; Feng, Wei.

In: ACS Applied Materials and Interfaces, Vol. 13, No. 25, 29726–29736, 30.06.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review