Prussian blue-derived Fe2O3/sulfur composite cathode for lithium-sulfur batteries

Chongchong Zhao, Cai Shen, Fengxia Xin, Zixu Sun, Weiqiang Han

Research output: Journal PublicationArticlepeer-review

61 Citations (Scopus)

Abstract

Porous Fe2O3 was prepared by simple annealing of preformed Prussian blue that was synthesized from a wet chemistry method. The obtained porous Fe2O3 nanoparticles were then mixed with sulfur and used as cathode for lithium-sulfur batteries. The porous Fe2O3 acts as an internal polysulfide reservoir, and thus reduces the shuttle effect. Composite cathode containing 5% porous Fe2O3 shows improved cycling performance as compared to that without porous Fe2O3. A stable reversible discharge capacity of 574.3 mAh/g was obtained after 50 cycles at 0.5 C.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalMaterials Letters
Volume137
DOIs
Publication statusPublished - 15 Dec 2014
Externally publishedYes

Keywords

  • Energy storage and conversion
  • Nanoparticles

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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