Improving the Performance of Lithium-Sulfur Batteries by Employing Polyimide Particles as Hosting Matrixes

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Pei-Yang Gu
  • Yi Zhao
  • Jian Xie
  • Nursimaa Binte Ali
  • Lina Nie
  • Zhichuan J. Xu

Detail(s)

Original languageEnglish
Pages (from-to)7464-7470
Journal / PublicationACS Applied Materials and Interfaces
Volume8
Issue number11
Online published29 Feb 2016
Publication statusPublished - 30 Mar 2016
Externally publishedYes

Abstract

Sulfur cathodes with four polyimide (PI) compounds as hosting matrixes have been prepared through a simple one-step approach. These four PIs-S composites exhibited higher sulfur utilization and better cycling stability than pure sulfur. At a current rate of 300 mA g-1, the initial discharge capacities of PI-1S, PI-2S, PI-3S, and BBLS reached 1120, 1100, 1150, and 1040 mAh g-1, respectively. After the 30th cycle, PI-1S, PI-2S, PI-3S, BBLS and pristine sulfur powder still remained discharge capacities of 715, 673, 729, 643, and 550 mAh g-1. Especially, PI-1S and PI-3S cathodes exhibit excellent cycling stability with the discharge capacities of 522 and 574 mAh g-1 at the 450th cycle, respectively.

Research Area(s)

  • high specific capacity, lithium-sulfur batteries, long lifetime, poly(ethylene glycol), polyimide

Citation Format(s)

Improving the Performance of Lithium-Sulfur Batteries by Employing Polyimide Particles as Hosting Matrixes. / Gu, Pei-Yang; Zhao, Yi; Xie, Jian et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 11, 30.03.2016, p. 7464-7470.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review