Iron sulfide/carbon hybrid cluster as an anode for potassium-ion storage

Qiyao Yu, Jun Hu, Yunzhi Gao, Jinlong Gao, Guoquan Suo, Pengjian Zuo, Wei Wang*, Geping Yin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Due to the natural abundance and low cost of potassium resource, potassium-ion batteries (KIBs) are promising alternatives in comparison to lithium-ion batteries (LIBs). Herein, we report a three-dimensional (3D) iron sulfide/carbon hybrid cluster as a novel anode material for high-performance KIBs. The iron sulfide and amorphous carbon petals overlap as a whole, forming a stable conductive structure. A high capacity of 226 mAh g−1 is obtained at a current density of 0.1 A g−1 over 100 cycles. The improved electrochemical performances are mainly due to the synergistic effect of the unique structure with high capacity, high conductivity and less agglomeration.

Original languageEnglish
Pages (from-to)1086-1091
Number of pages6
JournalJournal of Alloys and Compounds
Volume766
DOIs
Publication statusPublished - 25 Oct 2018
Externally publishedYes

Keywords

  • Anode
  • Hybrid cluster
  • Iron sulfide/carbon
  • Potassium-ion batteries

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