Scalable mesoporous silicon microparticles composed of interconnected nanoplates for superior lithium storage

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

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Author(s)

  • Tiansheng Mu
  • Baicheng Shen
  • Shuaifeng Lou
  • Zhiguo Zhang
  • Xiaoming Zhou
  • Pengjian Zuo
  • Chunyu Du
  • Yulin Ma
  • Hua Huo
  • Geping Yin

Detail(s)

Original languageEnglish
Article number121923
Journal / PublicationChemical Engineering Journal
Volume375
Online published8 Jun 2019
Publication statusPublished - 1 Nov 2019
Externally publishedYes

Abstract

Constructing micro-nano hierarchical porous structure is an effective strategy to solve key issues arising from the large volume change of silicon-based materials during cycling. Herein, we successfully obtain the mesoporous silicon microparticles composed of nanoplates driven from waste glass by the magnesiothermic reduction reaction. The two-dimensional nanoplates and abundant mesoporous structure in the microparticles not only effectively mitigate the mechanical strains caused by volume changes but also promote lithium ion diffusion. The silicon microparticles display outstanding lithium storage performance including extremely high first Coulombic efficiency (85.1%), remarkable reversible specific and volumetric capacities (1793 mAh g−1 and 747 mAh cm−3 after 120 cycles at 200 mA g−1, 1000 mAh g−1 after 360 cycles at 500 mA g−1) and impressive rate performance (1183.7 mA h g−1 at 1 A g−1). Simultaneously, the corresponding electrode exhibits significantly less impedance build-up and smaller electrode thickness increase than that of commercial silicon nanoparticles. Furthermore, the scalable and cost-effective method makes it an attractive candidate for next generation lithium ion batteries anode materials.

Research Area(s)

  • Lithium ion battery, Mesoporous, Silicon anode, Two-dimensional nanoplates

Citation Format(s)

Scalable mesoporous silicon microparticles composed of interconnected nanoplates for superior lithium storage. / Mu, Tiansheng; Shen, Baicheng; Lou, Shuaifeng; Zhang, Zhiguo; Ren, Yang; Zhou, Xiaoming; Zuo, Pengjian; Du, Chunyu; Ma, Yulin; Huo, Hua; Yin, Geping.

In: Chemical Engineering Journal, Vol. 375, 121923, 01.11.2019.

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